Positive and negative pressure drying oven water-cooling rapid cooling device and drying oven assembly

Abstract

The utility model relates to the technical field of pressure drying ovens, in particular to a positive and negative pressure drying oven water-cooling rapid cooling device which is used for being installed in a drying oven assembly, a cooling pipe set and a drying oven body are further arranged in the drying oven assembly, and the cooling pipe set is located outside the drying oven body and communicated with the drying oven body. The cooling pipe group comprises a heat exchanger and an exhaust fan, and the heat exchanger and the exhaust fan are sequentially communicated with the oven body; the cooling pipe set further comprises a main air outlet pipe and a main air inlet pipe, one end of the main air outlet pipe is communicated with the oven body, the other end of the main air outlet pipe is communicated with the heat exchanger, one end of the main air inlet pipe is communicated with the exhaust fan, and the other end of the main air inlet pipe is communicated with the oven body. A plurality of flanges are further arranged in the cooling pipe set, part of the flanges are installed on the main air outlet pipe, and the other part of the flanges are installed on the main air inlet pipe. The drying oven assembly comprises the positive and negative pressure drying oven water-cooling rapid cooling device.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure ovens, in particular to a positive and negative pressure oven water-cooling rapid temperature reduction device and an oven assembly. Background Art

[0002] An industrial oven is a device used to heat, dry, bake or solidify materials, and is usually used in various processing processes in industrial production. Industrial ovens include positive pressure ovens and negative pressure ovens, which means that the internal pressure of the oven is different from the external environment to prevent internal gas leakage or external contaminants from entering. Industrial ovens usually have an adjustable temperature control system to ensure that the required temperature can be maintained inside the oven during processing. Existing ovens usually use water cooling, that is, a square hole is opened on the oven, and the cooling water pipe group is directly installed into the oven through the square hole. Since the area of ​​the square hole needs to be larger than the area of ​​the cooling water pipe, the square hole part also needs to be equipped with a sealing device, but the insulation effect of the cooling water pipe group is not as good as the original insulation layer of the oven, resulting in the temperature of the cooling water pipe group part rising rapidly when the oven is working, affecting the sealing effect and stability of use. At the same time, if there is a problem with the welding of the cooling water pipe group, it will cause the cooling water pipe group to leak, thereby causing the oven to fail and repair, affecting the processing stability.

[0003] To solve the above technical problems, Chinese patent CN214039472U discloses a water-cooled heat pump dehumidification and drying unit, in which a first refrigeration cycle loop is formed by connecting a first compressor, a high-pressure condenser, a water-cooled heat exchanger, a first throttle valve, and a first evaporator through a refrigeration pipeline, and a second refrigeration cycle loop is formed by connecting a second compressor, a low-pressure condenser, a second throttle valve, and a second evaporator through a refrigeration pipeline; the first air is driven by a first fan to circulate in an air pipeline between the high-pressure condenser and the oven, and the second air is driven by a second fan to circulate in an air pipeline between the second evaporator, the first evaporator, the low-pressure condenser, and the oven. The above patent can quickly dehumidify and dry the material, improve the dehumidification and drying efficiency and drying effect, but the low-pressure condenser is located in the oven, which has a greater impact on the working effect of the pressure condenser.

[0004] Therefore, it is necessary for technical personnel in this field to provide a positive and negative pressure oven water-cooled rapid cooling device to cool the high-temperature gas inside the oven while ensuring the sealing integrity of the oven and improving the use stability and processing efficiency. Utility Model Content

[0005] The utility model aims to provide a positive and negative pressure oven water cooling rapid temperature reduction device and an oven assembly, so as to solve the technical problem that the cooling method of directly installing the cooling water pipe group into the interior of the oven in the prior art will affect the sealing effect of the oven and easily cause safety accidents.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a positive and negative pressure oven water-cooling rapid temperature reduction device, which is used to be installed in an oven assembly, wherein a cooling pipe group and an oven furnace body are also provided in the oven assembly, and the cooling pipe group is located outside the oven furnace body and is connected to the oven furnace body; the cooling pipe group includes a heat exchanger and an exhaust fan, and the heat exchanger and the exhaust fan are connected to the oven furnace body in sequence; the cooling pipe group also includes a main air outlet pipe and a main air inlet pipe, one end of the main air outlet pipe is connected to the oven furnace body, and the other end of the main air outlet pipe is connected to the heat exchanger, one end of the main air inlet pipe is connected to the exhaust fan, and the other end of the main air inlet pipe is connected to the oven furnace body; a plurality of flanges are also provided in the cooling pipe group, some of the flanges are installed on the main air outlet pipe, and the other part of the flanges are installed on the main air inlet pipe.

[0007] Furthermore, the heat exchanger includes an outer shell and a copper tube coiled inside the outer shell. The outer shell is a square shell-like structure with a hollow interior. The outer shell is provided with a water inlet and a water outlet. The water inlet and the water outlet penetrate the outer shell and are respectively connected to both ends of the copper tube.

[0008] Furthermore, the outer shell is provided with an auxiliary air outlet pipe and an auxiliary air inlet pipe, which penetrate the outer shell and are connected to the inner cavity of the outer shell; the auxiliary air inlet pipe is connected to the main air outlet pipe.

[0009] Furthermore, the exhaust fan comprises an air intake port and an air outlet port, the air intake port is connected to a secondary air outlet pipe on the heat exchanger, and the air outlet port is connected to the main air intake pipe.

[0010] Furthermore, a three-way pipe and a connecting pipe are provided in the cooling pipe group. The three-way pipe and the connecting pipe are connected to each other. The three-way pipe is connected to the heat exchanger, and the connecting pipe is connected to the exhaust fan.

[0011] Furthermore, the three-way pipe is connected to the auxiliary air outlet pipe, and a valve is provided on the three-way pipe.

[0012] Furthermore, the valve is a solenoid valve.

[0013] Furthermore, the exhaust fan comprises a quick-drop motor and an exhaust fan, and the exhaust fan is mounted on an output shaft of the quick-drop motor.

[0014] An oven assembly comprises the positive or negative pressure oven water-cooling rapid temperature reduction device described in any one of the above items.

[0015] The beneficial effects of the utility model are as follows: the utility model arranges the cooling pipe group outside the oven body to prevent water leakage at the connection part, improves the airtightness of the oven body, and ensures the stability of use. At the same time, the cooling pipe group is connected to the oven body through a flange to reduce the influence of the external environment on the airtightness of the oven body. At the same time, the cooling pipe group is completely installed outside, which reduces the difficulty of installation, and the cooling speed is significantly improved compared with the ordinary cooling water pipe group. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a stereoscopic diagram of the positive and negative pressure drying oven water cooling rapid temperature reduction device and the drying oven assembly of the utility model.

[0017] Figure 2 It is a stereoscopic diagram of the positive and negative pressure oven water cooling rapid temperature reduction device and the oven assembly of the utility model (part of the shell is omitted).

[0018] Figure 3 It is a stereoscopic diagram of a positive and negative pressure oven water-cooling rapid temperature reduction device and a cooling pipe group in an oven assembly of the utility model.

[0019] Figure 4 yes Figure 3 Exploded diagram.

[0020] Figure 5 yes Figure 3 A partial enlarged schematic diagram of area A in the middle.

[0021] Figure 6 yes Figure 3 Left view of .

[0022] The components in the accompanying drawings are marked as follows: 10, oven assembly; 11, oven body; 20, cooling pipe group; 21, main air outlet pipe; 22, main air inlet pipe; 23, flange; 24, tee pipe; 25, connecting pipe; 26, valve; 27, heat exchanger; 271, water inlet; 272, water outlet; 273, auxiliary air outlet pipe; 274, auxiliary air inlet pipe; 28, exhaust fan; 281, air intake port; 282, air outlet. DETAILED DESCRIPTION

[0023] Now the utility model is described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the components related to the utility model.

[0024] See also Figure 1 , Figure 2The utility model provides an oven assembly 10, which includes a positive and negative pressure oven water cooling rapid temperature reduction device, and the positive and negative pressure oven water cooling rapid temperature reduction device is installed in the oven assembly 10. The oven assembly 10 is also provided with an oven furnace body 11 and a cooling pipe group 20, and the cooling pipe group 20 is located outside the oven furnace body 11 and connected to the oven furnace body 11. The utility model arranges the cooling pipe group 20 outside the oven furnace body 11 to prevent water leakage at the connection part, improve the airtightness of the oven furnace body 11, and ensure the stability of use.

[0025] See also Figure 3 , Figure 4 The cooling tube group 20 includes a heat exchanger 27 and an exhaust fan 28, which are sequentially connected to the oven body 11. When in use, the hot air inside the oven body 11 is drawn into the heat exchanger 27 by the exhaust fan 28, and the hot air is cooled by heat exchange to obtain cold air, and then the cold air is passed back into the oven body 11 to complete the rapid cooling operation.

[0026] Specifically, see Figure 5 The heat exchanger 27 includes a shell and a copper tube coiled inside the shell. The shell is a square shell structure with a hollow interior. The shell is provided with a water inlet 271 and a water outlet 272. The water inlet 271 and the water outlet 272 penetrate the shell and are connected to the two ends of the copper tube respectively. The shell is also provided with a secondary air outlet pipe 273 and a secondary air inlet pipe 274. The secondary air outlet pipe 273 and the secondary air inlet pipe 274 penetrate the shell and are connected to the internal cavity of the shell.

[0027] When in use, a coolant flows in the copper tube, and the coolant includes but is not limited to water. The coolant is introduced into the copper tube from the water inlet 271 and discharged from the water outlet 272, thereby cooling the internal cavity of the heat exchanger 27; the hot air in the oven furnace body 11 is drawn into the heat exchanger 27 from the auxiliary air inlet pipe 274, and the hot air contacts the copper tube inside the heat exchanger 27 to achieve heat exchange, thereby reducing the temperature of the hot air, completing the cooling and obtaining cold air, and the cold air is discharged from the auxiliary air outlet pipe 273 to complete the cooling of the oven furnace body 11.

[0028] In this embodiment, the exhaust fan 28 includes a quick-drop motor and an exhaust fan. The exhaust fan is installed on the output shaft of the quick-drop motor. The exhaust fan is driven to rotate by the quick-drop motor, thereby drawing the hot air inside the oven furnace body 11 into the heat exchanger 27.

[0029] Furthermore, the cooling pipe group 20 also includes a main air outlet pipe 21 and a main air inlet pipe 22. One end of the main air outlet pipe 21 is connected to the oven furnace body 11, and the other end of the main air outlet pipe 21 is connected to the auxiliary air inlet pipe 274 on the heat exchanger 27. One end of the main air inlet pipe 22 is connected to the exhaust fan 28, and the other end of the main air inlet pipe 22 is connected to the oven furnace body 11.

[0030] Specifically, see Figure 4 , Figure 6 The exhaust fan 28 includes an air intake port 281 and an air outlet 282 . The air intake port 281 is connected to the auxiliary air outlet pipe 273 on the heat exchanger 27 , and the air outlet 282 is connected to the main air intake pipe 22 .

[0031] When in use, the high-temperature gas in the oven furnace body 11 is sucked out, passes through the main air outlet pipe 21 and the auxiliary air inlet pipe 274 in sequence, and then enters the heat exchanger 27 to complete cooling. Then the cooled gas is sucked out and passes through the auxiliary air outlet pipe 273 and the air intake port 281 in sequence, and finally sucked into the exhaust fan 28. Through the exhaust fan 28, the cooled air is successively passed into the air outlet 282 and the main air inlet pipe 22, and finally passed into the oven furnace body 11 to complete the cooling cycle.

[0032] The water-cooling rapid cooling method of the utility model is to use the exhaust fan 28 to extract the high-temperature gas in the oven furnace body 11 through the heat exchanger 27, and then return it to the oven furnace body 11 after cooling. The exhaust fan 28 is installed inside and outside the oven furnace body 11, thereby preventing water leakage inside the oven furnace body 11, effectively improving the safety performance of use, and ensuring the stability of use of the utility model.

[0033] Furthermore, a three-way pipe 24 and a connecting pipe 25 are further provided in the cooling pipe group 20 . The three-way pipe 24 and the connecting pipe 25 are connected to each other. The three-way pipe 24 is connected to the heat exchanger 27 , and the connecting pipe 25 is connected to the exhaust fan 28 .

[0034] Specifically, the three-way pipe 24 is connected to the auxiliary air outlet pipe 273, and a valve 26 is provided on the three-way pipe 24. The valve 26 includes but is not limited to a solenoid valve. The valve 26 is used to control the three-way pipe 24 to ensure the transmission sequence. When the valve 26 is started, the cooling gas flows from the heat exchanger 27 into the exhaust fan 28. When the valve 26 is closed, the cooling gas flows out of the heat exchanger 27 and passes through the three-way pipe 24, and finally flows into another pipeline (not shown in the figure), and the cooling gas cannot enter the exhaust fan 28. The connecting pipe 25 is connected to the air inlet 281, and the connecting pipe 25 is a curved pipe structure. It is used to ensure the stability of air circulation.

[0035] Furthermore, a plurality of flanges 23 are provided in the cooling pipe group 20, some of which are installed on the main air outlet pipe 21, and the other flanges 23 are installed on the main air inlet pipe 22. The utility model connects the cooling pipe group 20 with the oven body 11 through the flanges 23, thereby reducing the influence of the external environment on the sealing of the oven body 11. Meanwhile, the cooling pipe group 20 is completely installed outside, which reduces the difficulty of installation, and the cooling speed is significantly improved compared with the ordinary cooling water pipe group.

[0036] The specific operation method of the utility model is: the hot air inside the oven furnace body 11 is sucked into the heat exchanger 27 by the exhaust fan 28, the hot air is heat-exchanged and cooled to obtain cold air, and then the cold air is passed back into the oven furnace body 11 to complete the rapid cooling operation.

[0037] The utility model arranges the cooling pipe group 20 outside the oven furnace body 11 to prevent water leakage at the connection part, improve the airtightness of the oven furnace body 11, and ensure the stability of use. At the same time, the cooling pipe group 20 is connected to the oven furnace body 11 through the flange 23, reducing the influence of the external environment on the airtightness of the oven furnace body 11. At the same time, the cooling pipe group 20 is completely installed outside, which reduces the difficulty of installation, and the cooling speed is significantly improved compared with the ordinary cooling water pipe group.

[0038] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A positive and negative pressure oven water cooling rapid temperature reduction device, used to be installed in an oven assembly (10), characterized in that: The oven assembly (10) is further provided with a cooling pipe group (20) and an oven furnace body (11); the cooling pipe group (20) is located outside the oven furnace body (11) and is connected to the oven furnace body (11); the cooling pipe group (20) includes a heat exchanger (27) and an exhaust fan (28); the heat exchanger (27) and the exhaust fan (28) are connected to the oven furnace body (11) in sequence; the cooling pipe group (20) also includes a main air outlet pipe (21) and a main air inlet pipe (22); the main One end of the main air outlet pipe (21) is connected to the oven furnace body (11), and the other end of the main air outlet pipe (21) is connected to the heat exchanger (27). One end of the main air inlet pipe (22) is connected to the exhaust fan (28), and the other end of the main air inlet pipe (22) is connected to the oven furnace body (11). A plurality of flanges (23) are also provided in the cooling pipe group (20), some of the flanges (23) are mounted on the main air outlet pipe (21), and other flanges (23) are mounted on the main air inlet pipe (22).

2. The positive and negative pressure oven water cooling rapid temperature reduction device according to claim 1 is characterized in that: The heat exchanger (27) comprises an outer shell and a copper tube coiled inside the outer shell. The outer shell is a square shell-like structure with a hollow interior. A water inlet (271) and a water outlet (272) are provided on the outer shell. The water inlet (271) and the water outlet (272) penetrate the outer shell and are respectively connected to the two ends of the copper tube.

3. The positive and negative pressure oven water cooling rapid temperature reduction device according to claim 2 is characterized in that: The outer shell is also provided with an auxiliary air outlet pipe (273) and an auxiliary air inlet pipe (274), which penetrate the outer shell and are connected to the inner cavity of the outer shell; the auxiliary air inlet pipe (274) and the main air outlet pipe (21) are connected to each other.

4. The positive and negative pressure oven water cooling rapid temperature reduction device according to claim 3 is characterized in that: The exhaust fan (28) comprises an air intake port (281) and an air outlet port (282), wherein the air intake port (281) is connected to the auxiliary air outlet pipe (273) on the heat exchanger (27), and the air outlet port (282) is connected to the main air intake pipe (22).

5. The positive and negative pressure oven water cooling rapid temperature reduction device according to claim 1 is characterized in that: A three-way pipe (24) and a connecting pipe (25) are also provided in the cooling pipe group (20); the three-way pipe (24) and the connecting pipe (25) are connected to each other; the three-way pipe (24) is connected to the heat exchanger (27); and the connecting pipe (25) is connected to the exhaust fan (28).

6. The positive and negative pressure oven water cooling rapid temperature reduction device according to claim 5, characterized in that: The three-way pipe (24) is connected to the auxiliary air outlet pipe (273), and a valve (26) is provided on the three-way pipe (24).

7. The positive and negative pressure oven water cooling rapid temperature reduction device according to claim 6, characterized in that: The valve (26) is a solenoid valve.

8. The positive and negative pressure oven water cooling rapid temperature reduction device according to claim 1, characterized in that: The exhaust fan (28) comprises a quick-drop motor and an exhaust fan, and the exhaust fan is mounted on the output shaft of the quick-drop motor.

9. An oven assembly, characterized in that: The oven assembly includes the positive or negative pressure oven water-cooling rapid temperature reduction device according to any one of claims 1 to 8.

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