CN113896409B - Forced cooling glass toughening furnace for refrigerator - Google Patents

As shown in fig. 1 to 10, the present invention provides a refrigerator strong cooling glass tempering furnace, including: the tempering furnace comprises a

1, wherein an

2 and a

3 are respectively arranged on the upper side and the lower side in the

1, the

2 and the

3 are connected with a refrigerating unit 4, the refrigerating unit 4 works, the temperature in the

1 is refrigerated to a preset temperature through the

2 and the

3, and then

5 to be tempered enters the

1.

The working principle of the technical scheme is as follows: the glass toughening furnace heats the

5 to a certain temperature, then conveys the

5 to a toughening cooling section, so that two sides of the

5 are rapidly cooled through a medium, a large temperature difference is generated between an inner layer and a surface layer to form a temperature step, the generated stress is relaxed because the

5 is still in a viscous flow state, when the temperature gradient of the

5 gradually disappears, the original relaxed stress is gradually converted into a permanent stress, and two surfaces of the

5 are provided with a layer of uniformly distributed compressive stress layers, so that the mechanical strength and the thermal stability of the

5 are improved; in the toughening cooling section of the glass toughening furnace in the prior art, a

13 is generally used for conveying normal-temperature air to cool and toughen the

5, the energy consumption of the

13 is generally large, the starting time of the

13 is long, and time and resources are consumed; the invention adopts a heat-insulating

1, the upper side and the lower side of the

1 are provided with air conditioners, the temperature in the

1 is cooled to the required preset temperature through the air conditioners, then heated

5 is placed in the

1, the

5 is placed between the two air conditioners, and cold air generated by the air conditioners is uniformly conveyed to the two surfaces of the

5, so that the

5 can be rapidly cooled.

The beneficial effects of the above technical scheme are that: through setting up

1 of taking the air conditioner, make the temperature in the

1 can reach preset temperature in advance, when

5 after the heating gets into in the

1, because the temperature of

5 is great with the difference of the temperature of

1, through the heat transfer, can cool off

5 after the heating to the room temperature rapidly, reach the purpose of tempering, the air conditioner compares with

13, its work energy consumption can reduce greatly, and need not start for a long time, when practicing thrift the energy consumption, promote the efficiency of 5 armours of glass.

In one embodiment,

6 are respectively arranged below the

2 and above the

3, and the

5 enters the

1 from between the two

6.

The working principle and the beneficial effects of the technical scheme are as follows: the cold air blown out by the

2 and the cold air blown out by the

3 are respectively blown to the surface of the

5 through the

6 uniformly, so that the temperature of each part of the surface of the

5 can be reduced uniformly in the cooling process, the tempering quality of the

5 is improved, and the mechanical performance of the

5 is further improved.

In one embodiment, the

6 comprises a plurality of

610 arranged at intervals, a plurality of

611 are arranged on the

610, and cold air in the

1 is blown to the side where the

5 is placed through gaps between

610 or the

611.

The working principle and the beneficial effects of the technical scheme are as follows: the plurality of

610 are uniformly arranged, the plurality of

611 on the

610 are also uniformly distributed, and cold air blown by the air cooler is uniformly blown to the surface of the

5 through gaps between

610 and the

611, so that the cooling uniformity of the

5 is improved.

In one embodiment, a first temperature sensor is arranged in the

1, second temperature sensors are arranged on the surfaces of the two

6, and when the temperature in the

1 detected by the first temperature sensor is equal to the temperature on the surfaces of the two

6 detected by the two second temperature sensors, and the detected temperature reaches the preset temperature, the

5 to be toughened enters the

1.

The working principle of the technical scheme is as follows: because the volume of the

1 is large, in the process of manufacturing cold air by the

13 and the

13, the temperature inside the

1 is uneven, and because the cold air descends and the hot air ascends, the temperature difference is generated between the upper temperature and the lower temperature inside the

1, so that the first temperature sensors can be arranged at the top and the bottom of the

1, the second temperature sensors are arranged on the surface of one side, close to the

5, of the

6, when the refrigerating unit 4 starts to work, the air conditioner starts to blow into the

1, at the moment, the lowest temperature is the position closest to the air conditioner, the cold air is not diffused to the

1, along with the continuous flow of the air in the

1, the temperature inside the

1 can reach unity, namely, when the temperatures detected by the two first temperature sensors, the two second temperature sensors and the first temperature sensor and the second temperature sensor are the same, and judging whether the temperature reaches the preset temperature or not, if so, keeping the temperature in the

1 constant, and directly conveying the

5 into the

1 for tempering.

The beneficial effects of the above technical scheme are that: through setting up first temperature sensor and second temperature sensor for

1 temperature everywhere reaches uniformly with the temperature of 6 departments of air grid, prevent that

5 after the heating from entering into

1 after, the temperature of 5 upper and lower surface contact of glass differentiates and influences

5's tempering effect, further guarantees the quality of 5 preparation processes of glass.

In one embodiment, when the detected temperature reaches a preset temperature, the refrigeration unit 4 is controlled to operate so that the temperature inside the

1 is kept constant, and the refrigeration unit 4 can maintain the temperature inside the

1 to be kept constant according to the following equation:

wherein P is the heat quantity consumed in the refrigerating process in the

1, mu is the heat conductivity coefficient, S is the heat transfer area of the

1, D is the thickness of the

1, T₂Preset temperature, T, for temperature sensor detection₁Is the temperature, T, of the environment in which the

1 is located₀When the refrigerating unit 4 is not in operation, the initial temperature in the

1, T is the temperature in the

1 from T₀Change to T₂The time required for the operation of the apparatus,

the coefficient is fixed and is determined by the composition and structure of the inside of the

1.

The working principle and the beneficial effects of the technical scheme are as follows: p is in the unit of W, μ is in the unit of W/(m. DEG C.), S is in the unit of m²D has the unit m, T₀、T₁、T₂In the above formula, the left side of the equation represents the difference between the amount of heat consumed in the refrigeration process in the

1 and the amount of heat absorbed by the

1 in the external environment, and the right side of the equation represents the temperature inside the tank 1Degree from T₀Change to T₂The heat that needs to consume, consequently, according to the law of conservation of energy, can derive above-mentioned equation, the refrigeration work of refrigerating unit 4 can be controlled according to above-mentioned equation, can obtain the working time of controlling refrigerating unit 4 from this, the temperature and the refrigeration efficiency isoparametric of cold wind, realize that the temperature keeps the invariable state in the

1, the energy that the work of saving refrigerating unit 4 needs to consume adjusts the operating condition of refrigerating unit 4 more intelligently.

In one embodiment, a blowing

7 is arranged in the

611, and the blowing

7 accelerates the cold air in the

1 to the side where the

5 is placed.

The working principle and the beneficial effects of the technical scheme are as follows: the air outlet of the air conditioner is also provided with a structure for accelerating the air outlet speed, so that cold air can be quickly blown to the

5, and the air blowing

7 arranged in the

611 can accelerate the flow of air in the

1 before the

5 enters the

1, so that the temperature of the air in the

1 can quickly reach a uniform state; after the

5 enters the

1, the blowing

7 and the air conditioner can blow high-speed cold air to one side of the

5 together, so that the cooling speed of the surface of the

5 is increased.

In one embodiment, a mixing device 8 is communicated with the

710 of the blowing

7, the mixing device 8 is communicated with a first

10 arranged at the top in the

1 through a

9, and the mixing device 8 is communicated with a second

12 arranged at the bottom in the

1 through a

11.

The working principle and the beneficial effects of the technical scheme are as follows: the mixing devices 8 can be directly connected to the

710 of the blowing

7, that is, the mixing device 8 is disposed at the

710 of each

7, the

9 of the mixing devices 8 are all in a communicated state, and the

11 of the mixing devices 8 are all in a communicated state; only one mixing device 8 can be arranged on one

6, so that the

710 of a plurality of

7 are communicated, and the air is simultaneously conveyed to the plurality of

7 through the mixing device 8; before the refrigerating unit 4 starts to work and the

5 does not enter the

1, the temperature at each position in the

1 is uneven, the positions of the first

10 and the second

12 are set according to the principle that hot air rises and cold air falls, the first

10 pumps air with higher temperature at the top in the

1 into the mixing device 8, the second

12 pumps air with lower temperature at the bottom in the

1 into the mixing device 8, the air with different temperatures enters the mixing device 8 and then is blown out from the blowing

7 at an increased speed, so that the vertical convection is generated in the

1, the air flow in the

1 is accelerated, the upper side and the lower side in the

1 are enabled to generate larger air flow through the first

10 and the second

12, the diffusion of cold air is accelerated in the cold air machine manufacturing process, and the temperature in the

1 is enabled to reach a balanced state rapidly, the detection values of the first temperature sensor and the second temperature sensor can be the same in a short time, the efficiency of detecting the temperature in the

1 is improved, the working time of the refrigerating unit 4 is further saved, and the temperature in the

1 is balanced in a short time; when the

5 enters the

1 for tempering, the operation of the blowing

7, the mixing device 8 and the air exhaust part can be stopped, the high-speed cold air is provided for the surface of the

5 only by the air conditioner, or the operation of the blowing

7, the mixing device 8 and the air exhaust part can be stopped, the high-speed cold air is provided for the surface of the

5 by the air conditioner, and the cooling efficiency of the

5 is further improved.

In one embodiment, the tempering furnace further comprises a control end, wherein the control end is used for receiving temperature values detected by the first temperature sensor and the second temperature sensor and controlling whether the

5 to be tempered can enter the

1 or not according to a judgment result of the temperature values.

The working principle of the technical scheme is as follows: the control end is used for receiving the temperature value that first temperature sensor and second temperature sensor detected, numerical value also can show equally, make things convenient for people to monitor the inside condition of

1, for example can learn whether temperature is even and the temperature reaches the condition such as preset temperature in the

1, come to control refrigerating unit 4 and air exhaust portion, can be to refrigerating unit 4's control, whether need adjust the temperature of cold wind according to room temperature and the temperature in the

1, open or close for controlling it to air exhaust portion's control, when the condition in the

1 satisfies the demand of 5 steelings of glass,

5 after the heating alright conveying carry out tempering in the

1.

The beneficial effects of the above technical scheme are that: through the monitoring of control end to the temperature in the

1, to refrigerating unit 4 and the control of portion of bleeding, all make

5's tempering process more intelligent automation to compare in carrying out cooling to

5 through

13, saved glass tempering furnace's tempering cooling section's energy consumption, the energy saving greatly.

In one embodiment, the blowing

7 includes a blowing body, a first accelerating

720, a communicating

730 and a second accelerating

740 which are communicated with the

710 are sequentially arranged in the blowing body, and a

750 communicated with the second accelerating

740 is arranged at one end of the blowing body, which is far away from the

710;

the diameter of the first accelerating

720 near one end of the

710 is larger than that of the other end thereof, a first

721 is arranged at one end of the first accelerating

720 near the

710, and a

722 is arranged on the inner side wall of the first accelerating

720;

a plurality of

731 which are obliquely arranged towards one side of the

750 are arranged on the inner side wall of the

730;

the diameter of the end of the

740 connected to the

750 is smaller than the diameter of the end of the

740 connected to the

730, a second

741 is formed at the end of the

740 close to the

730, an

742 is fixed in the

740, and an opening of the

742 faces one side of the

730;

the end of the

750 connected with the second accelerating

740 is provided with a third accelerating

751, the end of the third accelerating

751 far away from the second accelerating

740 is provided with a

752, and the diameter of the end of the third accelerating

751 connected with the

752 is smaller than that of the end connected with the second accelerating

740.

the side of the

820 is provided with a plurality of first through

821, and the side of the

850 located in the second

841 is provided with a plurality of second through

852.

The beneficial effects of the above technical scheme are that: through the design of the structure, the gas can be accelerated after passing through the first through

821 and the second through

852, and when the gas is exhausted from the

831 and the

851, the gas is accelerated again, the aperture of the

831 and the aperture of the

851 are set to be small, so that the purpose of acceleration can be achieved, and two air with different temperatures can be converged in the

842 and enter the

7 together; so set up, make the air of 1 top of box and bottom can produce great circulation, and make the temperature of two positions reach the equilibrium as early as possible, through setting up mixing arrangement 8 and

7, when making the air of different temperatures can the flash mixed, can also carry out multistage acceleration, so that final combustion gas speed is accelerated, further improve circulation of air speed, all played profitable effect for the temperature balance in the

1 and the cooling on

5 surface, the efficiency and the quality of

5 tempering have been promoted.

1. The utility model provides a refrigerator forced cooling glass tempering furnace which characterized in that includes: the tempering furnace comprises a box body (1), wherein an upper air cooler (2) and a lower air cooler (3) are respectively arranged on the upper side and the lower side in the box body (1), the upper air cooler (2) and the lower air cooler (3) are connected with a refrigerating unit (4), the refrigerating unit (4) works, the temperature in the box body (1) is refrigerated to a preset temperature through the upper air cooler (2) and the lower air cooler (3), and then glass (5) to be tempered enters the box body (1);

air grids (6) are respectively arranged below the upper air conditioner (2) and above the lower air conditioner (3), and the glass (5) enters the box body (1) from between the two air grids (6);

the air grid (6) comprises a plurality of laths (610) arranged at intervals, a plurality of vent holes (611) are formed in the laths (610), and cold air in the box body (1) is blown to one side where the glass (5) is placed through gaps between the adjacent laths (610) or the vent holes (611);

a blowing device (7) is arranged in the vent hole (611), and the blowing device (7) accelerates the cold air in the box body (1) to blow towards one side where the glass (5) is placed;

the air inlet (710) of the blowing device (7) is communicated with a mixing device (8), the mixing device (8) is communicated with a first air extraction part (10) arranged at the inner top of the box body (1) through a first air inlet (9), and the mixing device (8) is communicated with a second air extraction part (12) arranged at the inner bottom of the box body (1) through a second air inlet (11);

the mixing device (8) comprises a first gas collecting part (810), a first gas collecting cavity (811) is arranged on the inner side of the first gas collecting part (810), the first gas collecting cavity (811) is communicated with the second gas inlet (11), a first cylinder (820) is arranged in the first gas collecting cavity (811), a vent pipe (830) communicated with the first gas collecting part (810) is arranged below the first gas collecting part (810), a second gas collecting part (840) is arranged on the outer side of the vent pipe (830), a second gas collecting cavity (841) is arranged on the inner side of the second gas collecting part (840), the second gas collecting cavity (841) is communicated with the first gas inlet (9), a second cylinder (850) is arranged in the second gas collecting part (840), the second cylinder (850) is sleeved on the outer side of the vent pipe (830), and a mixing cavity (842) is arranged at one end, far away from the first gas collecting part (810), of the second gas collecting part (840), the mixing cavity (842) is communicated with an air inlet (710) of the blowing device (7), one end, far away from the first air collecting part (810), of the vent pipe (830) penetrates through the second cylinder (850) and is located in the mixing cavity (842), the side face, located in the mixing cavity (842), of the end part of the vent pipe (830) is provided with a plurality of first air outlet holes (831), the axes of the first air outlet holes (831) are all obliquely arranged in the same direction, a second air outlet hole (851) is formed in the inner side wall, in contact with the vent pipe (830), of the second cylinder (850), the second air outlet hole (851) is spiral, and the second air outlet hole (851) is communicated with the mixing cavity (842);

the side surface of the first cylinder (820) is provided with a plurality of first through holes (821), and the side surface of the second cylinder (850) positioned in the second gas collecting cavity (841) is provided with a plurality of second through holes (852).

2. The refrigerator forced cooling glass tempering furnace according to claim 1, wherein a first temperature sensor is arranged in said box body (1), a second temperature sensor is arranged on the surface of each of said two air grids (6), when the temperature in said box body (1) detected by said first temperature sensor and the temperature on the surface of each of said two air grids (6) detected by said two second temperature sensors are equal, and the detected temperature reaches said preset temperature, the glass (5) to be tempered enters said box body (1).

3. The refrigerator strong cooling glass tempering furnace according to claim 2, further comprising a control end for receiving temperature values detected by said first and second temperature sensors and controlling whether the glass (5) to be tempered can enter into the box body (1) according to the judgment result of said temperature values.

4. The refrigerator forced cooling glass tempering furnace according to claim 1, wherein said blowing device (7) comprises a blowing body, a first accelerating cavity (720), a communicating cavity (730) and a second accelerating cavity (740) which are communicated with said air inlet (710) are sequentially arranged in said blowing body, and a nozzle (750) communicated with said second accelerating cavity (740) is arranged at one end of said blowing body far away from said air inlet (710);

the diameter of one end, close to the air inlet (710), of the first acceleration cavity (720) is larger than that of the other end of the first acceleration cavity, a first annular groove (721) is formed in one end, close to the air inlet (710), of the first acceleration cavity (720), and a spiral acceleration plate (722) is arranged on the inner side wall of the first acceleration cavity (720);

a plurality of baffle plates (731) which are obliquely arranged towards one side of the nozzle (750) are arranged on the inner side wall of the communication cavity (730);

the diameter of one end, connected with the nozzle (750), of the second acceleration cavity (740) is smaller than that of one end, connected with the communication cavity (730), of the second acceleration cavity (740), a second annular groove (741) is arranged at one end, close to the communication cavity (730), of the second acceleration cavity (740), an acceleration box (742) is fixedly arranged in the second acceleration cavity (740), and an opening of the acceleration box (742) faces one side of the communication cavity (730).

5. The refrigerator strong cooling glass tempering furnace according to claim 4, wherein an end of said nozzle (750) connected to said second acceleration chamber (740) is provided with a third acceleration chamber (751), an end of said third acceleration chamber (751) far from said second acceleration chamber (740) is provided with a spout (752), and a diameter of an end of said third acceleration chamber (751) connected to said spout (752) is smaller than a diameter of an end thereof connected to said second acceleration chamber (740).