CN112976061B - Laboratory double superclean bench - Google Patents
- ️Fri Sep 03 2021
CN112976061B - Laboratory double superclean bench - Google Patents
Laboratory double superclean bench Download PDFInfo
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Publication number
- CN112976061B CN112976061B CN202110456809.5A CN202110456809A CN112976061B CN 112976061 B CN112976061 B CN 112976061B CN 202110456809 A CN202110456809 A CN 202110456809A CN 112976061 B CN112976061 B CN 112976061B Authority
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- China Prior art keywords
- fire extinguishing
- experimenter
- hands
- assembly
- fire Prior art date
- 2021-04-27 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J21/00—Chambers provided with manipulation devices
- B25J21/005—Clean rooms
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J21/00—Chambers provided with manipulation devices
- B25J21/02—Glove-boxes, i.e. chambers in which manipulations are performed by the human hands in gloves built into the chamber walls; Gloves therefor
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
- A62C99/0027—Carbon dioxide extinguishers
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Robotics (AREA)
- Mechanical Engineering (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
The invention is suitable for the technical field of laboratory equipment, and provides a laboratory double-person superclean workbench which comprises a workbench surface, wherein a top cover is arranged on the workbench surface, and an ultraviolet lamp and a fire extinguishing structure are arranged below the top cover; the fire extinguishing structure comprises a translation assembly, a lifting assembly and a fire extinguishing assembly; the translation subassembly includes the pivot, and the movable block is cup jointed to the screw thread in the pivot, and the movable block passes through the board of accepting and connects first lifting member and second lifting member, and the lower part of first lifting member and second lifting member is rotated and is connected the subassembly of putting out a fire, and the subassembly of putting out a fire is including putting the thing chamber and holding the chamber, holds the chamber and highly suits apart from the height that table surface's height and experimenter both hands can reach. Therefore, the fire extinguishing device can quickly extinguish fire for both hands of an experimenter within 2-3 seconds after both hands catch fire, so that the experimenter is prevented from being scalded or burned, and the safety of the experiment is improved.
Description
Technical Field
The invention relates to the technical field of laboratory equipment, in particular to a laboratory double-person superclean workbench.
Background
The superclean bench is designed for meeting the requirements of cleanliness and sterility of a local working area in the fields of modern industry, photoelectric industry, biopharmaceutical industry, scientific research experiment and the like, and is divided into a single-person bench and a double-person bench. The superclean bench generally comprises a bench surface, an outer cover, a transparent window and an ultraviolet germicidal lamp, wherein the transparent window is provided with through holes for two hands to extend into.
Because the superclean bench can only protect reagent, medicine etc. that operate in the workstation from polluting, consequently, the experimenter need put into aseptic technique platform with required experimental materials such as alcohol burner, alcohol watering can, culture dish, blake bottle, centrifuging tube, aseptic gloves in advance at the experimentation who carries out aseptic technique on, disinfect the back, just can use, and when carrying out strict aseptic experiment, only can use the experimental materials that have disinfected in the workstation.
In a strict sterile experiment process, after an experimenter wears sterile gloves in a workbench, alcohol needs to be smeared for sterilization, and after the gloves contact samples (such as excrement samples and blood samples), alcohol sterilization needs to be carried out for multiple times; in addition, reagent is taken from the workbench or the culture dish is opened for bacteria selection, the reagent bottle mouth or the culture dish opening needs to be sterilized at high temperature, and the high-temperature sterilization mode in the workbench generally adopts an alcohol lamp, so that the alcohol lamp is longer in burning time in the general experiment process or cannot be burnt for a long time in the whole experiment process.
In the process, the sterile gloves of the experimenters need to be sterilized and disinfected by alcohol for many times, and meanwhile, the alcohol lamps need to be contacted for many times, so that the phenomenon that the alcohol on the sterile gloves catches fire when encountering open fire exists in the process, and especially, the problem frequently occurs to students in beginners due to improper operation.
In the superclean workbench in the prior art, the only solution after the problems occur is that an experimenter extracts hands from through holes of transparent windows, takes off the gloves on fire, and needs to take off one glove and then another glove after two hands catch fire; due to the fact that the alcohol is ignited at a high speed and the temperature is high, the hand-drawing time (2-4 s) is enough to scald the experimenter, and the scalding degree of the other hand is increased by the time (2-4 s) for removing the first glove; although the existing laboratory sterile gloves generally have a fireproof function, the function is limited to ensure that the gloves after being ignited can not be adhered to the skin in a short time, and the inventor finds that the sterilized gloves after being ignited can be adhered to the skin after the time of more than 5s through the real case of the laboratory, and can not play a role in preventing scalding. Therefore, in the work process of the clean bench, the sterile gloves catch fire to bring certain danger to the experimenters, especially the beginners.
Patent publication No. CN105413781A discloses a super clean bench that can prevent fires, and patent publication No. CN208260809U discloses a super clean bench for biotechnology, all is equipped with firebreak device on the super clean bench of above-mentioned two patents, but its firebreak device is only used for the work of putting out a fire after whole super clean bench catches fire, is not used for the laboratory staff that protection both hands catch fire.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
Disclosure of Invention
Aiming at the defects, the invention aims to provide a laboratory double-person superclean workbench, which can quickly extinguish fire for both hands within 2-3s after both hands of an experimenter catch fire through the combined action of multiple modes of a fire extinguishing structure, so that the experimenter is prevented from being scalded or burned, and the safety of the experiment is improved.
In order to achieve the purpose, the invention provides a laboratory double superclean bench which comprises a working table top, wherein an outer cover is arranged on the working table top and comprises a top cover, transparent windows are arranged on the front side and the rear side of the working table top, and the bottom of each transparent window is provided with a through hole for inserting the hands of an experimenter; an ultraviolet lamp and a fire extinguishing structure are arranged below the top cover.
The fire extinguishing structure comprises a translation assembly, a lifting assembly and a fire extinguishing assembly.
The translation assembly comprises a rotating shaft, two ends of the rotating shaft are rotatably connected with fixed blocks, the fixed blocks are fixedly connected to the top cover, one end of the rotating shaft penetrates out of the fixed blocks to be connected with a driving piece, a moving block is sleeved on the rotating shaft in a threaded manner, and a sliding assembly is arranged between the top of the moving block and the top cover.
The bottom of the moving block is fixedly connected with a bearing plate, the moving block is connected with a lifting assembly through the bearing plate, the lifting assembly comprises a first lifting piece and a second lifting piece, the lower portions of the first lifting piece and the second lifting piece are rotatably connected with a fire extinguishing assembly, and the fire extinguishing assembly has a preset inclination angle.
The fire extinguishing assembly comprises a storage cavity and an accommodating cavity, a carbon dioxide storage tank is arranged in the storage cavity, a liquid pipe of the carbon dioxide storage tank extends downwards into the accommodating cavity, and an electric control valve is arranged on the liquid pipe; the both sides that hold the chamber all are equipped with the hand hole that is used for inserting both hands, it still is equipped with the exhaust tube to hold the intracavity, the exhaust tube upwards wears out the overhead guard and connects negative-pressure air fan.
The height of the accommodating cavity from the working table surface is adapted to the height which can be reached by both hands of an experimenter.
Furthermore, the adjusting range of the preset inclination angle accords with the sight angle of an experimenter.
Further, the adjusting range of the preset inclination angle is 35-45 degrees.
Furthermore, all be equipped with folding shutoff on the hand hole, the material of folding shutoff is fire prevention materials such as asbestos fibre, carbon fiber, glass fiber.
Further, in the front view of the accommodating cavity, the accommodating cavity is of a circular arc shape.
Further, the accommodating cavity is of a transparent structure.
Furthermore, the number of the electric control valves is two, the two electric control valves are respectively arranged on the working table surface, and the electric control valves are located between the two through holes.
Furthermore, the sliding assembly comprises a sliding rail arranged at the top of the moving block and a sliding groove arranged at the bottom of the top cover, and the sliding groove is matched with the sliding rail.
Further, the fire extinguishing structure can extinguish fire for both hands of an experimenter within 2-3 s.
The invention aims to provide a laboratory double-person superclean workbench, wherein a fire extinguishing structure is arranged on a top cover of the superclean workbench, and the whole fire extinguishing structure is arranged inside the superclean workbench, so that an experimenter can extinguish fire for both hands inside the superclean workbench, and the time for the experimenter to take out the hands from the superclean workbench is saved; the electric control valve of the fire extinguishing structure is arranged at a position close to both hands, so that the time for starting the fire extinguishing assembly by an experimenter is saved; the fire extinguishing assembly of the fire extinguishing structure is arranged close to an experimenter, so that the time for the experimenter to stretch both hands into the accommodating cavity can be saved; the angle that will put out a fire the subassembly inclines to set up, can make the angle of subassembly of putting out a fire accord with experimenter's sight angle, avoids blocking the experimenter, influences the experimenter and does the experiment. In conclusion, the beneficial effects of the invention are as follows: through the combined action of the multiple modes of the fire extinguishing structure, after both hands of an experimenter catch fire, the two hands can be quickly extinguished within 2-3s, the experimenter is prevented from being scalded or burned, and the safety of the experiment is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic cross-sectional view of FIG. 1; FIG. 3 is a schematic cross-sectional view of the storage compartment and the receiving compartment; FIG. 4 is a schematic top view of the table top of the present invention; in the figure: 1-working table, 11-top cover, 12-transparent window, 13-through hole, 14-ultraviolet lamp; 2-rotating shaft, 21-moving block, 22-fixing block, 23-driving piece and 24-bearing plate; 3-a first lifter, 31-a second lifter; 4-a storage cavity, 41-a carbon dioxide storage tank, 42-a liquid pipe, 43-an electric control valve and 431-an electric control valve switch; 5-containing cavity, 51-folding and plugging; 6-an exhaust pipe and 61-a negative pressure fan.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and 2, the invention provides a laboratory double superclean bench, which comprises a
working table top1, wherein an outer cover is arranged on the
working table top1, the outer cover comprises two side covers and a
top cover11,
transparent windows12 are respectively arranged on the front side and the rear side of the
working table top1, and the bottom of each
transparent window12 is provided with a
through hole13 for inserting the hands of an experimenter; an
ultraviolet lamp14 for sterilization and a fire extinguishing structure for protecting the hands of the experimenter are arranged under the
top cover11.
The fire extinguishing structure comprises a translation assembly, a lifting assembly and a fire extinguishing assembly.
The translation assembly comprises a
rotating shaft2, two ends of the
rotating shaft2 are rotatably connected with a
fixed block22 through bearings, the
fixed block22 is fixedly connected to the
top cover11, one end of the
rotating shaft2 penetrates through the
fixed block22 and is connected with a
driving piece23, a moving
block21 is further in threaded sleeve connection with the
rotating shaft2, and a sliding assembly is arranged between the top of the moving
block21 and the
top cover11; when the
driving member23 is operated, the
rotation shaft2 rotates, and the rotation of the
rotation shaft2 moves the moving
block21 to the left and right with respect to the
rotation shaft2.
The sliding assembly comprises a sliding rail arranged at the top of the moving
block21 and a sliding groove arranged at the bottom of the
top cover11, and the sliding groove is matched with the sliding rail for use.
The bottom of the moving
block21 is fixedly connected with a
bearing plate24 and is connected with a lifting assembly through the
bearing plate24, the lifting assembly comprises a
first lifting piece3 and a
second lifting piece31 which are uniformly distributed at two ends of the
bearing plate24, and the lower parts of the
first lifting piece3 and the
second lifting piece31 are rotatably connected with a fire extinguishing assembly. The
first lifting piece3 and the
second lifting piece31 are respectively provided with a control switch, and the working states of the
first lifting piece3 and the
second lifting piece31 are respectively controlled through the two control switches.
Referring to fig. 3, the fire extinguishing assembly includes a
storage chamber4 and a containing
chamber5, a carbon
dioxide storage tank41 is arranged in the
storage chamber4, a
liquid pipe42 is connected to an outlet of the carbon
dioxide storage tank41, the
liquid pipe42 extends downwards into the containing
chamber5, and an
electric control valve43 is arranged on the
liquid pipe42; the two sides of the
accommodating cavity5 are provided with hand holes for inserting hands, the
accommodating cavity5 is internally provided with an
exhaust pipe6, and the
exhaust pipe6 upwards penetrates out of the
top cover11 to be connected with a
negative pressure fan61. When an experimenter opens the
electric control valve43 and inserts both hands (sleeved with sterile gloves) on fire into the
accommodating cavity5 respectively, liquid carbon dioxide in the carbon
dioxide storage tank41 enters the
accommodating cavity5 to extinguish the fire on the sterile gloves; liquid carbon dioxide becomes the gaseous state after getting into and holding
chamber5, through
negative pressure fan61's effect after putting out a fire, discharges gaseous carbon dioxide to superclean bench's outside, because some specific experiments require highly to the content of gas in the air, consequently, derive gaseous carbon dioxide and can avoid too much carbon dioxide to enter into superclean bench's inside from
holding chamber5, influence the experimental result.
In the present invention, the control switches of the
driving member23, the first
elevating member3 and the second elevating
member31 are all disposed outside the housing.
In the working process, because the operation of carrying out the experiment in the through-
hole13 is stretched into to experimenter's both hands, consequently, the length of experimenter both hands in superclean bench inside is limited, the place ahead that both hands can contact and the distance of top are also limited, simultaneously, after experimenter's aseptic gloves catch fire, must put out the fire rapidly in 2-3s, just can avoid experimenter's both hands skin scald, avoid aseptic gloves adhesion on skin, consequently, after the
transparent window12 of experimenter selective use one side, need pass through the effect of translation subassembly, remove whole subassembly of putting out a fire to the position that is close to the experimenter, make things convenient for the experimenter to insert the hand smoothly and hold
chamber5.
When an experimenter uses the superclean bench to work, the maximum height of the two hands extending into the through
holes13 which are lifted upwards is the position which can reach the forehead of the experimenter, therefore, in order to ensure that the experimenter can rapidly extend the two hands into the
accommodating cavity5, the height of the
accommodating cavity5 needs to be adjusted through the lifting assembly, so that the height of the
accommodating cavity5 from the
working table top1 is matched with the height which can be reached by the two hands of the experimenter, and the experimenter can rapidly extend the two hands into the
accommodating cavity5 within 2-3 s; for example, if the maximum height that the experimenter can reach with both hands facing upwards is 35cm, the height of the
accommodating cavity5 from the
working table top1 is adjusted to be not higher than 35 cm.
Hold
chamber5 when reaching suitable laboratory technician's height, this height blocks laboratory technician's sight just, because the laboratory carries out the experimentation, often need set up the multiunit experiment, contain a plurality of repetition again in every group experiment, cause superclean bench work to need place a large amount of test tubes or flat board at work, laboratory technician is not only need the overhead experimental materials of seeing the eye in the frontal area, still need often observe or get the experimental materials of getting the field of vision the 20-30cm within range (the scope that arm length can contact), consequently, hold the normal work that
chamber5 can hinder laboratory technician to blockking in the laboratory technician field of vision. Because first
lifting member3 and
second lifting member31 set up control switch respectively, before the experimenter began the experiment, can be in advance through
first lifting member3 of control switch adjustment and
second lifting member31, make the subassembly of putting out a fire have preset inclination, and through
first lifting member3 and
second lifting member31, make the adjustment range of preset inclination 35-45 degrees, this inclination's adjustment range accords with experimenter's sight angle (a or b in fig. 2) just, makes and holds
chamber5 and can not block experimenter's sight.
In the invention, the fire extinguishing structure is arranged in the middle of the
top cover11; the hands of the worker can be conveniently stretched into the
accommodating cavity5 from the hand holes at the two sides. As a preferable scheme, the hand holes are all provided with
folding plugs51, and the
folding plugs51 are made of fireproof materials such as asbestos fibers, carbon fibers, glass fibers and the like; during the use, both hands stretch into from folding
shutoff51's opening part, because it is folding material, folding
shutoff51 cover is in experimenter's wrist department after the hand stretches into, avoids too much carbon dioxide gas to discharge into the superclean bench from the hand hole, causes the pollution or influences the experimental result to experimental sample or intermediate product. As a preferred scheme, in the front view of the accommodating cavity 5 (the
accommodating cavity5 in fig. 2 is a front view), the
accommodating cavity5 is a circular arc, and after the
accommodating cavity5 is adjusted in an inclination angle, the
accommodating cavity5 of the circular arc can further avoid blocking the sight of the experimenter. In the invention, the
accommodating cavity5 is of a transparent structure, so that an experimenter can see the experimental material at a far position clearly through the
accommodating cavity5 even if the angle of the
accommodating cavity5 is not adjusted in place.
Referring to fig. 4, two
electric control valves43 are arranged on the
workbench surface1 and located between the two through
holes13, after two hands of an experimenter extend into the
workbench surface1 inside the superclean workbench through the through
holes13, a safety angle which is not touched generally is formed between the two hands, and the
electric control valves43 are arranged inside the superclean workbench, so that the experimenter can open the
electric control valves43 at the first time when the two hands catch fire, and does not need to take out the hands to press the switch outside the superclean workbench, thereby saving time; the
electric control valve43 is arranged between the two through
holes13, so that the
electric control valve43 can be prevented from being pressed carelessly, and the fire extinguishing structure is prevented from being started mistakenly; meanwhile, the position is close to the two hands, and when an emergency occurs, the experimenter can quickly start the
electric control valve43 to enable the fire extinguishing structure to work, so that the experimenter can quickly extinguish the fire for the two hands within 2-3 s.
Preferably, two sets of
ultraviolet lamps14 are provided, one on each side of the fire extinguishing structure.
In the present invention, the driving
member23 is a motor, and the
first lifting member3 and the
second lifting member31 are both cylinders.
In conclusion, the fire extinguishing structure is arranged on the top cover of the clean bench, and the whole fire extinguishing structure is arranged inside the clean bench, so that the experimenters can extinguish fire for both hands inside the clean bench, and the time for the experimenters to take out the hands from the clean bench is saved; the electric control valve of the fire extinguishing structure is arranged at a position close to both hands, so that the time for starting the fire extinguishing assembly by an experimenter is saved; the fire extinguishing assembly of the fire extinguishing structure is arranged close to an experimenter, so that the time for the experimenter to stretch both hands into the accommodating cavity can be saved; the angle that will put out a fire the subassembly inclines to set up, can make the angle of subassembly of putting out a fire accord with experimenter's sight angle, avoids blocking the experimenter, influences the experimenter and does the experiment. In conclusion, the beneficial effects of the invention are as follows: through the combined action of the multiple modes of the fire extinguishing structure, after both hands of an experimenter catch fire, the two hands can be quickly extinguished within 2-3s, the experimenter is prevented from being scalded or burned, and the safety of the experiment is improved.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A laboratory double superclean bench is characterized by comprising a working table top, wherein an outer cover is arranged on the working table top and comprises a top cover, transparent windows are arranged on the front side and the rear side of the working table top, and a through hole for inserting both hands of an experimenter is formed in the bottom of each transparent window; an ultraviolet lamp and a fire extinguishing structure are arranged below the top cover;
the fire extinguishing structure comprises a translation assembly, a lifting assembly and a fire extinguishing assembly;
the translation assembly comprises a rotating shaft, two ends of the rotating shaft are rotatably connected with fixed blocks, the fixed blocks are fixedly connected to the top cover, one end of the rotating shaft penetrates through the fixed blocks and is connected with a driving piece, a moving block is further in threaded sleeve connection with the rotating shaft, and a sliding assembly is arranged between the top of the moving block and the top cover;
the bottom of the moving block is fixedly connected with a bearing plate, the moving block is connected with a lifting assembly through the bearing plate, the lifting assembly comprises a first lifting piece and a second lifting piece, the lower parts of the first lifting piece and the second lifting piece are rotatably connected with a fire extinguishing assembly, and the fire extinguishing assembly has a preset inclination angle;
the fire extinguishing assembly comprises a storage cavity and an accommodating cavity, a carbon dioxide storage tank is arranged in the storage cavity, a liquid pipe of the carbon dioxide storage tank extends downwards into the accommodating cavity, and an electric control valve is arranged on the liquid pipe; the two sides of the accommodating cavity are provided with hand holes for inserting two hands, and the accommodating cavity is also internally provided with an exhaust pipe which upwards penetrates through the top cover to be connected with a negative pressure fan;
the height of the accommodating cavity from the working table surface is adapted to the height which can be reached by both hands of an experimenter.
2. The laboratory double superclean bench of claim 1, wherein the adjustment range of the preset tilt angle conforms to the sight angle of the experimenter.
3. The laboratory double ultra-clean bench according to claim 2, wherein the adjustment range of the preset inclination angle is 35 to 45 degrees.
4. The laboratory double-person superclean bench according to claim 1, wherein the hand holes are provided with folding plugs, and the folding plugs are made of asbestos fibers, carbon fibers or glass fibers.
5. The laboratory double ultra-clean bench according to claim 1, wherein the accommodating cavity is a circular arc in a front view.
6. The laboratory double ultra-clean bench according to claim 5, wherein the accommodating cavity is a transparent structure.
7. The laboratory double ultra-clean bench according to claim 1, wherein there are two electric control valves respectively disposed on the bench surface, and the electric control valves are located between the two through holes.
8. The laboratory double superclean bench of claim 1, wherein the sliding assembly comprises a sliding rail disposed on the top of the moving block and a sliding groove disposed on the bottom of the top cover, and the sliding groove is used in cooperation with the sliding rail.
9. The laboratory double clean bench according to any one of claims 1 to 8, wherein the fire extinguishing structure is capable of extinguishing fires in 2-3 seconds for both hands of a laboratory worker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110456809.5A CN112976061B (en) | 2021-04-27 | 2021-04-27 | Laboratory double superclean bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110456809.5A CN112976061B (en) | 2021-04-27 | 2021-04-27 | Laboratory double superclean bench |
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| CN112976061A CN112976061A (en) | 2021-06-18 |
| CN112976061B true CN112976061B (en) | 2021-09-03 |
Family
ID=76341673
Family Applications (1)
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| EP1902808A1 (en) * | 2006-09-21 | 2008-03-26 | Louis Wardlaw | Enclosure for use during operations for applying heat to at least one conduit member comprising gloved armature means and viewing section ; Method of enclosing a conduit upon which a heating process is to be conducted using such enclosure |
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| Publication number | Publication date |
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| CN112976061A (en) | 2021-06-18 |
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