Temperature control device and drying system

Abstract

This invention belongs to the technical field of drying equipment, specifically providing a temperature control device and a drying system. The temperature control device includes a compressor, an evaporator, a first heating passage, and a second heating passage. The compressor includes an inlet end and an outlet end; the evaporator includes an inlet end and an outlet end, with the outlet end connected to the inlet end; the first heating passage includes a first condenser for outputting heat to a first target area; the second heating passage includes a second condenser for outputting heat to a second target area; one end of a first switching passage is connected to the side of the first condenser away from the outlet end, and the other end of the first switching passage is connected to the side of the second condenser near the outlet end. The first switching passage includes a first switching solenoid valve, which can control the on / off state of the first switching passage. The first switching passage enables the first condenser and the second condenser to form a series structure, improving the utilization rate of the energy carried by the refrigerant.

Description

[Technical Field]

[0001] This invention belongs to the field of drying equipment technology, and more specifically, relates to a temperature control device and a drying system. [Previous Technology]

[0002] Industrial dryers are a common type of equipment in industrial production processes. Currently, some industrial dryers use electric heating structures to heat the target area. The advantage of this type of industrial dryer is its fast heating speed, but its energy consumption is relatively high. On the other hand, some industrial dryers are heat pump dryers. These heat pump dryers have a narrow temperature adjustment range and poor adjustment flexibility, which limits the applicability of industrial dryers and makes them unable to meet the production needs of some products. [Summary of the Invention]

[0003] The purpose of this invention is to provide a temperature control device and a drying system to solve the technical problems of high energy consumption and poor adjustment flexibility of the temperature control device in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] On one hand, a temperature control device is provided, the temperature control device comprising:

[0006] A compressor, the compressor comprising an inlet end and an outlet end;

[0007] An evaporator, the evaporator including an inlet end and an outlet end, the outlet end being connected to the air inlet end;

[0008] A first heating passage, one end of which is connected to the outlet end and the other end of which is connected to the inlet end, the first heating passage includes a first condenser, the first condenser being used to output heat to a first target area;

[0009] A second heating passage, one end of which is connected to the outlet end and the other end of which is connected to the inlet end, the second heating passage includes a second condenser, the second condenser being used to output heat to the second target area;

[0010] A first switching path, one end of which is connected to the side of the first condenser away from the outlet end, and the other end of which is connected to the side of the second condenser near the outlet end. The first switching path includes a first switching solenoid valve, which can control the opening and closing of the first switching path.

[0011] Specifically, on the one hand, by setting the first heating passage and the second heating passage, one compressor can be matched with two heating passages to work, which can not only make full use of the compressor's processing capacity, but also improve the flexibility of the temperature control device, enabling the temperature control device to control the temperature of multiple different target areas; on the other hand, by setting the first switching passage connected to the downstream of the first condenser and the upstream of the second condenser, the first switching solenoid valve on the first switching passage can realize the connection or disconnection between the downstream of the first condenser and the upstream of the second condenser. When the output heat required by the second condenser is lower than the output heat required by the first condenser, the first switching passage can be used to make the first condenser and the second condenser form a series structure, so that the refrigerant discharged by the compressor can flow through the first condenser and the second condenser in sequence, which can not only meet the different output heat requirements of the first condenser and the second condenser, but also make the refrigerant more fully heat exchanged, improve the utilization rate of the energy carried by the refrigerant, thereby helping to improve the energy efficiency of the temperature control device, as well as improve the adjustment flexibility and adaptability of the temperature control device for different application scenarios. Furthermore, the refrigerant discharged from the compressor flows sequentially through the first condenser and the second condenser. The refrigerant undergoes a first heat exchange in the first condenser, where it acquires a relatively large amount of heat and outputs a high amount of heat. This high output heat is used to meet the temperature requirements of the first target area. Simultaneously, the refrigerant temperature decreases for the first time. After this initial temperature drop, the refrigerant enters the second condenser and undergoes a second heat exchange. The second condenser acquires a relatively small amount of heat and outputs a lower amount of heat. This lower output heat is used to meet the temperature requirements of the second target area. Simultaneously, the refrigerant temperature decreases for the second time. Throughout this process, the temperature control device not only meets the heat output requirements of both the first and second condensers but also fully utilizes the refrigerant energy, thus improving the energy efficiency of the temperature control device.

[0012] In one embodiment, the temperature control device further includes a second switching passage, one end of which is connected to the side of the second condenser away from the outlet end, and the other end of which is connected to the side of the first condenser close to the outlet end. The second switching passage includes a second switching solenoid valve, which can control the opening and closing of the second switching passage.

[0013] Specifically, by setting a second switching path connecting the downstream of the second condenser and the upstream of the first condenser, and using the second switching solenoid valve on the second switching path to achieve connection or disconnection between the downstream of the second condenser and the upstream of the first condenser, when the output heat required by the first condenser is lower than that required by the second condenser, the second switching path is used to make the second condenser and the first condenser form a series structure, so that the refrigerant discharged by the compressor can flow through the second condenser and the first condenser in sequence. This can not only meet the different output heat requirements of the first condenser and the second condenser, but also enable more complete heat exchange of the refrigerant, improving the utilization rate of the energy carried by the refrigerant, thereby helping to improve the energy efficiency of the temperature control device, as well as the adjustment flexibility and adaptability of the temperature control device for different application scenarios. At the same time, setting the first switching path and the second switching path makes the connection relationship between the first condenser and the second condenser more flexible, thereby making the use state of the temperature control device more flexible, which is conducive to the temperature control device better meeting the use needs of different application scenarios and effectively improving the versatility of the temperature control device. Furthermore, the refrigerant discharged from the compressor flows sequentially through the second condenser and the first condenser. The refrigerant undergoes a first heat exchange in the second condenser, where it acquires a relatively large amount of heat and outputs a high amount of heat. This high output heat is used to meet the temperature requirements of the second target area. Simultaneously, the refrigerant temperature drops for the first time. After this first temperature drop, the refrigerant enters the first condenser and undergoes a second heat exchange. The first condenser acquires a relatively small amount of heat and outputs a low amount of heat. This low output heat is used to meet the temperature requirements of the first target area. Simultaneously, the refrigerant temperature drops for the second time. Throughout this process, the temperature control device not only meets the heat output requirements of both the first and second condensers but also fully utilizes the refrigerant energy, thus improving the energy efficiency of the temperature control device.

[0014] In one embodiment, the first heating passage further includes a first heating solenoid valve, which is disposed between the first condenser and the gas outlet, and the first heating solenoid valve can disconnect the gas outlet from the first condenser.

[0015] The second heating passage further includes a second heating solenoid valve, which is disposed between the second condenser and the outlet end. The second heating solenoid valve can disconnect the connection between the outlet end and the second condenser.

[0016] Specifically, on the one hand, by setting the first heating solenoid valve and the second heating solenoid valve, which can control the opening and closing of the first heating passage and the second heating passage, the refrigerant flow through the first condenser and the second condenser can be controlled, thereby achieving effective control of the output heat of the first condenser and the second condenser. On the other hand, by setting the first heating solenoid valve on the side of the first condenser near the outlet end and setting the second heating solenoid valve on the side of the second condenser near the outlet end, the refrigerant connection between the first condenser, the second condenser and the compressor can be more effectively isolated, making the amount of refrigerant flowing through the first condenser and the second condenser more precise and controllable.

[0017] In one embodiment, the first heating passage further includes a third heating solenoid valve, the third heating solenoid valve being located on the side of the first condenser away from the outlet end, a first node being provided between the first condenser and the third heating solenoid valve, and one end of the first switching passage being connected to the first node; a second node being provided between the second condenser and the second heating solenoid valve, and the other end of the first switching passage being connected to the second node.

[0018] and / or, the second heating passage further includes a fourth heating solenoid valve, the fourth heating solenoid valve being located on the side of the second condenser away from the outlet end, a third node being located between the second condenser and the fourth heating solenoid valve, one end of the second switching passage being connected to the third node; a fourth node being located between the first condenser and the first heating solenoid valve, the other end of the second switching passage being connected to the fourth node.

[0019] Specifically, on the one hand, by connecting the first switching path to the first node and the second node, and using the first switching solenoid valve in conjunction with the second heating solenoid valve and the third heating solenoid valve, the first condenser and the second condenser can be connected in series more reliably, thereby allowing the refrigerant to reliably flow through the first condenser and the second condenser sequentially for heat exchange, effectively improving the energy utilization rate of the refrigerant. On the other hand, by connecting the second switching path to the third node and the fourth node, and using the second switching solenoid valve in conjunction with the first heating solenoid valve and the fourth heating solenoid valve, the second condenser and the first condenser can be connected in series more reliably, thereby allowing the refrigerant to reliably flow through the second condenser and the first condenser sequentially for heat exchange, effectively improving the energy utilization rate of the refrigerant. Furthermore, under normal operating conditions, the first and second switching solenoid valves are closed, the first heating passage and the second heating passage are connected in parallel, and the refrigerant discharged from the compressor is diverted between the first and second heating passages. The refrigerant only flows through one of the first and second condensers. When the output heat required by the second condenser is lower than that required by the first condenser, the second and third heating solenoid valves can be closed, while the first switching solenoid valve is opened, connecting the first and second nodes. At this time, the first and second condensers form a series structure, and the refrigerant discharged from the compressor can flow sequentially through the first and second condensers, thus satisfying the needs of both the first and second condensers. The different output heat requirements of the first condenser allow for more complete heat exchange of the refrigerant, improving the utilization rate of the energy carried by the refrigerant and thus contributing to the improvement of the energy efficiency of the temperature control device. When the output heat required by the first condenser is lower than that required by the second condenser, the first heating solenoid valve and the fourth heating solenoid valve can be closed, while the second switching solenoid valve can be opened, connecting the third node and the fourth node. At this time, the second condenser and the first condenser form a series structure, and the refrigerant discharged from the compressor can flow through the second condenser and the first condenser in sequence. This not only meets the different output heat requirements of the first condenser and the second condenser, but also allows for more complete heat exchange of the refrigerant, improving the utilization rate of the energy carried by the refrigerant and thus contributing to the improvement of the energy efficiency of the temperature control device.

[0020] In one embodiment, the temperature control device further includes a pressure relief passage, one end of which is connected to the outlet end and the other end of which is connected to the inlet end. The pressure relief passage includes a pressure relief solenoid valve and a third condenser. The pressure relief solenoid valve can control the opening and closing of the pressure relief passage, and the third condenser is located outside the first target area and the second target area.

[0021] Specifically, by setting the pressure relief passage, the pressure relief passage forms a parallel structure with the first heating passage and the second heating passage. The opening and closing of the pressure relief solenoid valve controls the on / off of the pressure relief passage, thereby enabling the pressure relief passage to selectively divert the refrigerant discharged by the compressor. This allows for a significant adjustment of the amount of refrigerant flowing through the first heating passage and the second heating passage, thereby achieving rapid adjustment of the output heat of the first condenser and the second condenser and temperature control of the target area. It also prevents the compressor from switching to high-pressure protection mode due to excessive overall pressure in the pipeline, effectively ensuring the continuous and stable operation of the system.

[0022] In one embodiment, the pressure relief solenoid valve is disposed on the side of the third condenser near the outlet end.

[0023] Specifically, by setting the pressure relief solenoid valve upstream of the refrigerant delivery direction of the third condenser, the pressure relief solenoid valve can isolate the third condenser from the compressor, restricting the refrigerant from entering the third condenser and preventing the refrigerant from exchanging heat in the third condenser. As a result, all the refrigerant discharged by the compressor passes through the first condenser and the second condenser and exchanges heat, so that the heat of the refrigerant is fully utilized, thereby helping to improve the efficiency of the first condenser and the second condenser in outputting heat to the target area.

[0024] In one embodiment, the temperature control device further includes an adjustment passage, one end of which is connected to at least one of the first condenser and the second condenser on the side away from the outlet end, and the other end of which is connected to the side of the third condenser near the outlet end. The adjustment passage includes an adjustment solenoid valve, which is capable of controlling the opening and closing of the adjustment passage.

[0025] Specifically, by setting the adjustment path, the third condenser is connected in series with the first condenser or the second condenser. The opening and closing of the adjustment solenoid valve controls the opening and closing of the adjustment path. Thus, the adjustment path can selectively accelerate the refrigerant flow rate in the first condenser or the second condenser, so as to slightly reduce the heat exchange of the refrigerant at the first condenser or the second condenser, thereby achieving a smooth adjustment of the output heat of the first condenser or the second condenser and temperature control of the target area.

[0026] In one embodiment, the regulating passage includes a first branch and a second branch, and the regulating solenoid valve includes a first regulating solenoid valve and a second regulating solenoid valve. The first regulating solenoid valve is disposed in the first branch, and the second regulating solenoid valve is disposed in the second branch. One end of the first branch is connected to the side of the first condenser away from the outlet end, and the other end of the first branch is connected to the side of the third condenser near the outlet end. One end of the second branch is connected to the side of the second condenser away from the outlet end, and the other end of the second branch is connected to the side of the third condenser near the outlet end.

[0027] Specifically, on the one hand, by setting the first branch and the second branch, and connecting the first branch and the second branch to the first heating passage and the second heating passage respectively, the regulating passage can independently regulate and control the two heating passages, thereby making the temperature regulation of the first condenser and the second condenser more flexible. On the other hand, by setting the first regulating solenoid valve and the second regulating solenoid valve upstream of the refrigerant delivery direction of the third condenser, the first regulating solenoid valve and the second regulating solenoid valve can isolate the third condenser from the compressor, completely restricting the refrigerant from entering the third condenser, avoiding heat exchange of the refrigerant in the third condenser, and thus ensuring that the refrigerant discharged by the compressor only exchanges heat with the first condenser and the second condenser, allowing the heat of the refrigerant to be fully utilized by the first condenser and the second condenser in stages, thereby helping to improve the efficiency of the first condenser and the second condenser in outputting heat to the target area.

[0028] In one embodiment, the third condenser is thermally connected to the evaporator, and the heat from the third condenser can be transferred to the evaporator.

[0029] Specifically, by thermally connecting the third condenser to the evaporator, heat can be provided to the evaporator, thereby improving the evaporation efficiency of the evaporator for the refrigerant, which helps the refrigerant to evaporate more fully and reduces the risk of liquid slugging in the compressor.

[0030] On the other hand, a drying system is provided, which includes a housing and a temperature control device of any of the above-mentioned types, wherein the first condenser and the second condenser are disposed in the housing.

[0031] Specifically, by setting the first condenser and the second condenser inside the chamber, the first condenser and the second condenser are used to reliably and stably transfer heat to the workpiece inside the chamber, thereby effectively improving the drying efficiency of the workpiece.

[0032] The beneficial effects of the temperature control device and drying system provided by the present invention are as follows:

[0033] On the one hand, by setting the first heating passage and the second heating passage, one compressor can be matched with two heating passages to work, which can make full use of the compressor's processing capacity and improve the flexibility of the temperature control device, so that the temperature control device can control the temperature of multiple different target areas.

[0034] On the other hand, by setting the first switching path connected to the downstream of the first condenser and the upstream of the second condenser, the first switching solenoid valve on the first switching path realizes the connection or disconnection between the downstream of the first condenser and the upstream of the second condenser. When the output heat required by the second condenser is lower than the output heat required by the first condenser, the first switching path is used to make the first condenser and the second condenser form a series structure, so that the refrigerant discharged by the compressor can flow through the first condenser and the second condenser in sequence. This can not only meet the different output heat requirements of the first condenser and the second condenser, but also make the refrigerant more fully heat exchanged, improve the utilization rate of the energy carried by the refrigerant, thereby helping to improve the energy efficiency of the temperature control device, as well as improve the adjustment flexibility and adaptability of the temperature control device for different application scenarios.

Implementation Method

[0039] To make the technical problems, technical solutions, and beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0040] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0041] It should be understood that the terms “length”, “width”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] This embodiment of the invention provides a temperature control device, as shown in FIG1. ​​The temperature control device includes a compressor 1, an evaporator 2, a first heating passage 3, a second heating passage 4, and a first switching passage 5. The compressor 1 includes an inlet end 11 and an outlet end 12; the evaporator 2 includes an inlet end 21 and an outlet end 22, the outlet end 22 being connected to the inlet end 11; one end of the first heating passage 3 is connected to the outlet end 12, and the other end of the first heating passage 3 is connected to the inlet end 21. The first heating passage 3 includes a first condenser 31, the first condenser 31 being used to supply heat to a first target area 10. 1. Heat output; one end of the second heating passage 4 is connected to the outlet end 12, and the other end of the second heating passage 4 is connected to the inlet end 21. The second heating passage 4 includes a second condenser 41, which is used to output heat to the second target area 102; one end of the first switching passage 5 is connected to the side of the first condenser 31 away from the outlet end 12, and the other end of the first switching passage 5 is connected to the side of the second condenser 41 near the outlet end 12. The first switching passage 5 includes a first switching solenoid valve 51, which can control the opening and closing of the first switching passage 5. The first target area 101 and the second target area 102 are collectively referred to as the target area.

[0044] Specifically, on the one hand, a heat pump structure is formed by compressor 1, evaporator 2 and first condenser 31 or second condenser 41, and heat is output to the target area by first condenser 31 or second condenser 41, which can make the temperature stability of the target area higher and the temperature adjustment range of the target area wider; on the other hand, by setting first heating passage 3 and second heating passage 4, one compressor 1 is matched with two heating passages to work, which can make full use of the processing capacity of compressor 1 and improve the flexibility of the temperature control device, so that the temperature control device can control the temperature of multiple different target areas; on the other hand, by setting a first switching passage connected to the downstream of first condenser 31 and the upstream of second condenser 41 In circuit 5, the first switching solenoid valve 51 on the first switching circuit 5 enables the connection or disconnection between the downstream of the first condenser 31 and the upstream of the second condenser 41. When the output heat required by the second condenser 41 is lower than that required by the first condenser 31, the first switching circuit 5 enables the first condenser 31 and the second condenser 41 to form a series structure, so that the refrigerant discharged by the compressor 1 can flow through the first condenser 31 and the second condenser 41 in sequence. This can not only meet the different output heat requirements of the first condenser 31 and the second condenser 41, but also enable more complete heat exchange of the refrigerant, improve the utilization rate of the energy carried by the refrigerant, thereby helping to improve the energy efficiency of the temperature control device, as well as the adjustment flexibility and adaptability of the temperature control device for different application scenarios. Furthermore, the refrigerant discharged from compressor 1 flows sequentially through the first condenser 31 and the second condenser 41. The refrigerant undergoes a first heat exchange in the first condenser 31, where it acquires a relatively large amount of heat and outputs a high amount of heat. This high output heat is used to meet the temperature requirements of the first target area 101. Simultaneously, the refrigerant temperature drops for the first time. After the first temperature drop, the refrigerant enters the second condenser 41 and undergoes a second heat exchange. The second condenser 41 acquires a relatively small amount of heat and outputs a low amount of heat. This low output heat is used to meet the temperature requirements of the second target area 102. Simultaneously, the refrigerant temperature drops for the second time. Throughout this process, the temperature control device not only meets the output heat requirements of the first condenser 31 and the second condenser 41 but also fully utilizes the refrigerant energy, thereby improving the energy efficiency of the temperature control device.

[0045] Of course, in other embodiments, the temperature control device may also include a third heating passage or even a fourth heating passage, that is, the number of heating passages may be three or more, such as four, five or six, etc. In the application process, the specific number of heating passages can be determined according to the number of target areas, so that each heating passage corresponds to one target area, thereby enabling the temperature control device to serve multiple target areas and output heat to multiple target areas.

[0046] In one embodiment, as shown in FIG2, the temperature control device further includes a second switching passage 9. One end of the second switching passage 9 is connected to the side of the second condenser 41 away from the outlet end 12, and the other end of the second switching passage 9 is connected to the side of the first condenser 31 near the outlet end 12. The second switching passage 9 includes a second switching solenoid valve 91, which is capable of controlling the opening and closing of the second switching passage 9.

[0047] Specifically, by setting a second switching passage 9 connected to the downstream of the second condenser 41 and the upstream of the first condenser 31, the second switching solenoid valve 91 on the second switching passage 9 is used to realize the connection or disconnection between the downstream of the second condenser 41 and the upstream of the first condenser 31. When the output heat required by the first condenser 31 is lower than the output heat required by the second condenser 41, the second switching passage 9 is used to make the second condenser 41 and the first condenser 31 form a series structure, so that the refrigerant discharged by the compressor 1 can flow through the second condenser 41 and the first condenser 31 in sequence. This can not only meet the different output heat requirements of the first condenser 31 and the second condenser 41, but also make the refrigerant more fully heat exchanged, improve the utilization rate of the energy carried by the refrigerant, thereby helping to improve the energy efficiency of the temperature control device, as well as improve the adjustment flexibility and adaptability of the temperature control device for different application scenarios. Simultaneously, the first switching path 5 and the second switching path 9 are set up, making the connection between the first condenser 31 and the second condenser 41 more flexible. This makes the operating state of the temperature control device more flexible, which helps the temperature control device to better meet the usage needs of different application scenarios and effectively improves the versatility of the temperature control device. Furthermore, the refrigerant discharged from the compressor 1 flows sequentially through the second condenser 41 and the first condenser 31. The refrigerant undergoes a first heat exchange in the second condenser 41, where the second condenser 41 acquires a relatively large amount of heat and outputs a high amount of heat. This high output heat is used to meet the temperature requirements of the second target area 102. At the same time, the refrigerant temperature drops for the first time. After the first temperature drop, the refrigerant enters the first condenser 31 and undergoes a second heat exchange in the first condenser 31. The first condenser 31 acquires a relatively small amount of heat and outputs a low amount of heat. This low output heat is used to meet the temperature requirements of the first target area 101. At the same time, the refrigerant temperature drops for the second time. Throughout the process, the temperature control device not only meets the output heat requirements of the first condenser 31 and the second condenser 41, but also achieves full utilization of the refrigerant energy, improving the energy efficiency of the temperature control device.

[0048] In one embodiment, as shown in FIG1, the first heating passage 3 further includes a first heating solenoid valve 32, which is disposed between the first condenser 31 and the outlet 12, and the first heating solenoid valve 32 can disconnect the connection between the outlet 12 and the first condenser 31; the second heating passage 4 further includes a second heating solenoid valve 42, which is disposed between the second condenser 41 and the outlet 12, and the second heating solenoid valve 42 can disconnect the connection between the outlet 12 and the second condenser 41.

[0049] Specifically, on the one hand, by setting a first heating solenoid valve 32 and a second heating solenoid valve 42 that can control the opening and closing of the first heating passage 3 and the second heating passage 4, the refrigerant flow through the first condenser 31 and the second condenser 41 can be controlled, thereby achieving effective control of the output heat of the first condenser 31 and the second condenser 41. On the other hand, by setting the first heating solenoid valve 32 on the side of the first condenser 31 near the outlet end 12 and setting the second heating solenoid valve 42 on the side of the second condenser 41 near the outlet end 12, the refrigerant connection between the first condenser 31, the second condenser 41 and the compressor 1 can be more effectively isolated, making the amount of refrigerant flowing through the first condenser 31 and the second condenser 41 more precise and controllable.

[0050] In one embodiment, as shown in Figures 1 and 2, the first heating passage 3 further includes a third heating solenoid valve 36, which is located on the side of the first condenser 31 away from the outlet end 12. A first node 37 is provided between the first condenser 31 and the third heating solenoid valve 36, and one end of the first switching passage 5 is connected to the first node 37. A second node 46 is provided between the second condenser 41 and the second heating solenoid valve 42, and the other end of the first switching passage 5 is connected to the second node 46. The second heating passage 4 further includes a fourth heating solenoid valve, which is located on the side of the second condenser 41 away from the outlet end 12. A third node 47 is provided between the second condenser 41 and the fourth heating solenoid valve, and one end of the second switching passage 9 is connected to the third node 47. A fourth node 38 is provided between the first condenser 31 and the first heating solenoid valve 32, and the other end of the second switching passage 9 is connected to the fourth node 38.

[0051] Specifically, on the one hand, by connecting the first switching passage 5 to the first node 37 and the second node 46, and using the first switching solenoid valve 51 in conjunction with the second heating solenoid valve 42 and the third heating solenoid valve 36, the first condenser 31 and the second condenser 41 can be connected in series more reliably, thereby allowing the refrigerant to reliably flow through the first condenser 31 and the second condenser 41 sequentially for heat exchange, effectively improving the energy utilization rate of the refrigerant. On the other hand, by connecting the second switching passage 9 to the third node 47 and the fourth node 38, and using the second switching solenoid valve 91 in conjunction with the first heating solenoid valve 32 and the fourth heating solenoid valve, the second condenser 41 and the first condenser 31 can be connected in series more reliably, thereby allowing the refrigerant to reliably flow through the second condenser 41 and the first condenser 31 sequentially for heat exchange, effectively improving the energy utilization rate of the refrigerant. Furthermore, under normal operating conditions, the first switching solenoid valve 51 and the second switching solenoid valve 91 are closed, the first heating passage 3 and the second heating passage 4 are connected in parallel, and the refrigerant discharged from the compressor 1 is diverted between the first heating passage 3 and the second heating passage 4. The refrigerant only flows through one of the first condenser 31 and the second condenser 41. When the output heat required by the second condenser 41 is lower than that required by the first condenser 31, the second heating solenoid valve 42 and the third heating solenoid valve 36 can be closed, while the first switching solenoid valve 51 is opened, so that the first node 37 and the second node 46 are connected. At this time, the first condenser 31 and the second condenser 41 form a series structure, and the refrigerant discharged from the compressor 1 can flow through the first condenser 31 and the second condenser 41 in sequence, which can satisfy the needs of the first condenser 31 and the second condenser 41. Different output heat requirements allow for more complete heat exchange of the refrigerant, improving the utilization rate of the energy carried by the refrigerant and thus contributing to the improvement of the energy efficiency of the temperature control device. When the output heat required by the first condenser 31 is lower than that required by the second condenser 41, the first heating solenoid valve 32 and the fourth heating solenoid valve can be closed, while the second switching solenoid valve 91 can be opened, connecting the third node 47 and the fourth node 38. At this time, the second condenser 41 and the first condenser 31 form a series structure, and the refrigerant discharged by the compressor 1 can flow through the second condenser 41 and the first condenser 31 in sequence. This not only meets the different output heat requirements of the first condenser 31 and the second condenser 41, but also allows for more complete heat exchange of the refrigerant, improving the utilization rate of the energy carried by the refrigerant and thus contributing to the improvement of the energy efficiency of the temperature control device.

[0052] In one embodiment, as shown in FIG1, the temperature control device further includes a pressure relief passage 6. One end of the pressure relief passage 6 is connected to the gas outlet 12, and the other end of the pressure relief passage 6 is connected to the inlet 21. The pressure relief passage 6 includes a pressure relief solenoid valve 61 and a third condenser 62. The pressure relief solenoid valve 61 can control the opening and closing of the pressure relief passage 6. The third condenser 62 is located outside the first target area 101 and the second target area 102.

[0053] Specifically, by setting up a pressure relief passage 6, the pressure relief passage 6 forms a parallel structure with the first heating passage 3 and the second heating passage 4. The opening and closing of the pressure relief solenoid valve 61 controls the opening and closing of the pressure relief passage 6, thereby enabling the pressure relief passage 6 to selectively divert the refrigerant discharged by the compressor 1, so as to significantly adjust the amount of refrigerant flowing through the first heating passage 3 and the second heating passage 4. This achieves rapid adjustment of the output heat of the first condenser 31 and the second condenser 41 and temperature control of the target area, as well as avoids the overall pressure of the pipeline from being too high, causing the compressor 1 to switch to the high-pressure protection mode, effectively ensuring the continuous and stable operation of the system.

[0054] In one embodiment, as shown in FIG1, the temperature control device further includes an adjustment passage 7. One end of the adjustment passage 7 is connected to the side of the first condenser 31 away from the outlet end 12, and the other end of the adjustment passage 7 is connected to the side of the third condenser 62 near the outlet end 12. The adjustment passage 7 includes an adjustment solenoid valve, which can control the opening and closing of the adjustment passage 7.

[0055] Specifically, by setting the regulating passage 7, the third condenser 62 is connected in series with the first condenser 31 or the second condenser 41. The opening and closing of the regulating passage 7 is controlled by the opening and closing of the regulating solenoid valve. Thus, the regulating passage 7 can selectively accelerate the refrigerant flow rate in the first condenser 31 or the second condenser 41, so as to slightly reduce the heat exchange of the refrigerant at the first condenser 31 or the second condenser 41, thereby achieving a smooth adjustment of the output heat of the first condenser 31 or the second condenser 41 and temperature control of the target area.

[0056] In the specific implementation process, firstly, when the pressure at the outlet end 12 of compressor 1 is too high, or the target area no longer needs heating, or the temperature of the target area needs to be significantly and rapidly reduced, the pressure relief solenoid valve 61 is opened to open the pressure relief passage 6. The pressure relief passage 6 is used to significantly divert the refrigerant discharged by compressor 1, thereby significantly reducing the pipeline pressure between compressor 1 and the first condenser 31 and the second condenser 41, and significantly reducing the amount of refrigerant flowing through the first heating passage 3 and the second heating passage 4. This significantly reduces the heat exchange of the first condenser 31 and the second condenser 41, reducing the output heat of the first condenser 31 and the second condenser 41, ultimately... First, to achieve a rapid temperature drop in the target area; second, when the target area requires a cold start or a significant and rapid temperature increase, the pressure relief solenoid valve 61 is closed, closing the pressure relief passage 6. This allows all the refrigerant discharged from the compressor 1 to flow through the first heating passage 3 and the second heating passage 4, significantly increasing the amount of refrigerant flowing through them. This, in turn, significantly increases the heat exchange capacity of the first condenser 31 and the second condenser 41, increasing their output heat and ultimately achieving a rapid temperature increase in the target area; third, when the temperature of the target area needs a small and gradual decrease, the regulating solenoid valve is opened, allowing the first... The side of condenser 31 furthest from outlet 12 is connected to the side of third condenser 62 closest to outlet 12, increasing the refrigerant passage on the side of first condenser 31 furthest from outlet 12. Alternatively, the side of second condenser 41 furthest from outlet 12 is connected to the side of third condenser 62 closest to outlet 12, increasing the refrigerant passage on the side of second condenser 41 furthest from outlet 12. This reduces the pressure at the rear end of first condenser 31 or second condenser 41, thereby increasing the refrigerant flow rate in either condenser, reducing the residence time and heat exchange of the refrigerant at the location of first condenser 31 or second condenser 41, and reducing the pressure in either condenser. The output heat of condenser 41 ultimately achieves a gradual decrease in temperature in the target area. Fourth, when the temperature in the target area needs to be gradually increased, the regulating solenoid valve is closed, closing the regulating passage 7. This reduces the refrigerant passage on the side of the first condenser 31 or the second condenser 41 furthest from the outlet 12, causing the pressure at the rear end of the first condenser 31 or the second condenser 41 to increase. Consequently, the refrigerant flow rate in the first condenser 31 or the second condenser 41 slows down, increasing the residence time and heat exchange of the refrigerant at the first condenser 31 or the second condenser 41, increasing the output heat of the first condenser 31 or the second condenser 41, and ultimately achieving a gradual increase in temperature in the target area. Overall, by opening and closing the pressure relief solenoid valve 61 and the regulating solenoid valve, a dynamic balance of the output heat of the first condenser 31 or the second condenser 41 is achieved, enabling the temperature control device to accurately and stably control the temperature of the target area.

[0057] In one embodiment, the regulating passage 7 further includes a regulating capillary tube disposed between the regulating solenoid valve and the third condenser 62.

[0058] In one embodiment, as shown in FIG1, the first heating passage 3 includes two first condensers 31 connected in parallel, and the second heating passage 4 includes two second condensers 41 connected in parallel. Specifically, by setting two parallel first condensers 31 and two parallel second condensers 41, the first heating passage 3 or the second heating passage 4 can simultaneously control the heating of two different locations in the target area, thereby making the temperature of different locations in the target area more uniform.

[0059] In one embodiment, as shown in FIG1, the regulating passage 7 includes a first branch and a second branch, and the regulating solenoid valve includes a first regulating solenoid valve 71 and a second regulating solenoid valve 72. The first regulating solenoid valve 71 is disposed in the first branch, and the second regulating solenoid valve 72 is disposed in the second branch. One end of the first branch is connected to the side of the first condenser 31 away from the outlet end 12, and the other end of the first branch is connected to the side of the third condenser 62 near the outlet end 12. One end of the second branch is connected to the side of the second condenser 41 away from the outlet end 12, and the other end of the second branch is connected to the side of the third condenser 62 near the outlet end 12.

[0060] Specifically, on the one hand, by setting up a first branch and a second branch, and connecting the first branch and the second branch to the first heating passage 3 and the second heating passage 4 respectively, the regulating passage 7 can independently regulate and control the two heating passages, thereby making the temperature regulation of the first condenser 31 and the second condenser 41 more flexible. On the other hand, by setting the first regulating solenoid valve 71 and the second regulating solenoid valve 72 upstream of the refrigerant delivery direction of the third condenser 62, the first regulating solenoid valve 71 and the second regulating solenoid valve 72 can isolate the third condenser 62 from the compressor 1, completely restricting the refrigerant from entering the third condenser 62, avoiding heat exchange of the refrigerant in the third condenser 62, and thus ensuring that all the refrigerant discharged by the compressor 1 only exchanges heat with the first condenser 31 and the second condenser 41, allowing the heat of the refrigerant to be fully utilized by the first condenser 31 and the second condenser 41 in stages, thereby helping to improve the efficiency of the first condenser 31 and the second condenser 41 in outputting heat to the target area.

[0061] In one embodiment, as shown in FIG1, the regulating capillary includes a first regulating capillary 73 and a second regulating capillary 74. The first regulating capillary 73 is disposed in the first branch and is located between the first regulating solenoid valve 71 and the third condenser 62. The second regulating capillary 74 is disposed in the second branch and is located between the second regulating solenoid valve 72 and the third condenser 62.

[0062] In one embodiment, as shown in FIG1, the pressure relief solenoid valve 61 is disposed on the side of the third condenser 62 near the outlet end 12. Specifically, by disposing of the pressure relief solenoid valve 61 upstream of the refrigerant delivery direction of the third condenser 62, the pressure relief solenoid valve 61 can isolate the third condenser 62 from the compressor 1, restricting the refrigerant from entering the third condenser 62 and preventing heat exchange by the refrigerant in the third condenser 62. Consequently, all the refrigerant discharged by the compressor 1 passes through the first condenser 31 and the second condenser 41 and undergoes heat exchange, allowing the heat of the refrigerant to be fully utilized, thereby helping to improve the efficiency of the first condenser 31 and the second condenser 41 in outputting heat to the target area.

[0063] Of course, in other embodiments, the pressure relief solenoid valve 61 can also be set on the side of the third condenser 62 away from the outlet end 12, that is, the pressure relief solenoid valve 61 is set downstream of the refrigerant delivery direction of the third condenser 62. In this state, the third condenser 62 is connected to the compressor 1. Although a small amount of refrigerant will enter the third condenser 62, this design can still achieve the on / off control of the pressure relief passage 6. In addition, this design can also limit the large amount of refrigerant entering the third condenser 62 and exchanging heat, so that the refrigerant can enter the first condenser 31 and the second condenser 41 more fully and exchange heat.

[0064] In one embodiment, the pressure relief passage 6 further includes a pressure relief expansion valve, which is located on the side of the third condenser 62 away from the outlet end 12. Specifically, the flow rate and pressure of the pressure relief passage 6 are different from those of the first heating passage 3 and the second heating passage 4. By providing a pressure relief expansion valve on the side of the third condenser 62 away from the outlet end 12, the pressure relief expansion valve can achieve a buffering effect, preventing the refrigerant in the pressure relief passage 6 from directly communicating with the refrigerant in the first heating passage 3 and the second heating passage 4. This helps to reduce the flow fluctuation of the refrigerant in the first heating passage 3 and the second heating passage 4, thereby helping to improve the stability of the output heat of the first condenser 31 and the second condenser 41.

[0065] In one embodiment, as shown in FIG1, the pressure relief passage 6 further includes a pressure relief check valve 63, which is disposed on the side of the third condenser 62 away from the outlet end 12. Specifically, by disposing of the pressure relief check valve 63 on the side of the third condenser 62 away from the outlet end 12, refrigerant can be prevented from entering the third condenser 62 in reverse from the end of the pressure relief passage 6 away from the pressure relief solenoid valve 61, thereby effectively protecting the third condenser 62 and preventing heat exchange of refrigerant at the location of the third condenser 62 when the pressure relief solenoid valve 61 is not open.

[0066] In one embodiment, as shown in FIG1, the third condenser 62 is thermally connected to the evaporator 2, and the heat of the third condenser 62 can be transferred to the evaporator 2. Specifically, by thermally connecting the third condenser 62 to the evaporator 2, heat can be provided to the evaporator 2, thereby improving the evaporation efficiency of the evaporator 2 for the refrigerant, which helps the refrigerant to evaporate more fully and reduces the risk of liquid slugging in the compressor 1.

[0067] In one embodiment, the third condenser 62 is arranged in parallel with the evaporator 2, and the third condenser 62 is located on the air inlet side of the evaporator 2, while the evaporator 2 is located on the air outlet side of the third condenser 62. Specifically, after the air in the third condenser 62 has completed heat absorption and temperature rise, it immediately enters the evaporator 2. The air transfers heat to the evaporator 2, causing the temperature of the evaporator 2 to rise, thereby helping to improve the evaporation efficiency of the evaporator 2 for the refrigerant.

[0068] In a specific implementation, the evaporator 2 is equipped with a first fan to drive air through the evaporator 2, and the third condenser 62 is equipped with a second fan to drive air through the third condenser 62. When the third condenser 62 and the evaporator 2 are arranged side by side, the first fan and the second fan can share a single fan, which is located on the side of the evaporator 2 away from the third condenser 62. This fan can create a negative pressure on the side of the evaporator 2 away from the third condenser 62, thereby attracting air from the side of the third condenser 62 away from the evaporator 2 and causing it to pass through the third condenser 62 and the evaporator 2 in sequence, thus achieving efficient and reliable airflow and heat exchange. Of course, in other embodiments, when the third condenser 62 and the evaporator 2 are arranged side by side, it can also be designed such that the first fan is located on the side of the evaporator 2 away from the third condenser 62, and the second fan is located between the evaporator 2 and the third condenser 62.

[0069] In one embodiment, a heat-conducting element is provided between the third condenser 62 and the evaporator 2. One end of the heat-conducting element is connected to the third condenser 62, and the other end of the heat-conducting element is connected to the evaporator 2. The heat-conducting element directly transfers the heat of the third condenser 62 to the evaporator 2. This design has high heat conduction efficiency.

[0070] In one embodiment, as shown in FIG1, the first heating passage 3 further includes a first heating capillary tube 33, the two ends of which are connected to the two ends of the first heating solenoid valve 32 respectively. The second heating passage 4 further includes a second heating capillary tube 43, the two ends of which are connected to the two ends of the second heating solenoid valve 42 respectively. Specifically, by setting a first heating capillary tube 33 connected in parallel with the first heating solenoid valve 32 and a second heating capillary tube 43 connected in parallel with the second heating solenoid valve 42, a small amount of refrigerant can still pass through the first heating capillary tube 33 or the second heating capillary tube 43 when the first heating solenoid valve 32 or the second heating solenoid valve 42 is closed. This keeps the first heating passage 3 or the second heating passage 4 open. At this time, the amount of refrigerant flowing through the first condenser 31 and the second condenser 41 is small, which will not cause a significant increase in the output heat of the first condenser 31 and the second condenser 41. Instead, it allows the first condenser 31 and the second condenser 41 to output a small amount of heat in order to reduce the rate of temperature drop in the target area, thereby making the temperature drop in the target area more gradual.

[0071] In one embodiment, as shown in FIG1, the first heating passage 3 further includes a first heating expansion valve 34, which is disposed on the side of the first condenser 31 near the inlet end 21. The second heating passage 4 further includes a second heating expansion valve 44, which is disposed on the side of the second condenser 41 near the inlet end 21.

[0072] Specifically, the opening and closing of the pressure relief passage 6 has an impact on the flow rate and pressure of the heating passage. By setting the first heating expansion valve 34 and the second heating expansion valve 44 on the side of the first condenser 31 and the second condenser 41 near the inlet end 21 respectively, the first heating expansion valve 34 and the second heating expansion valve 44 can achieve a buffering effect, avoiding the impact of the flow rate and pressure changes of the first heating passage 3 and the second heating passage 4 caused by the opening and closing of the pressure relief passage 6 on the compressor 1, thereby helping to improve the working stability of the overall temperature control device.

[0073] In one embodiment, as shown in FIG1, the first heating passage 3 and the second heating passage 4 share a heating expansion valve, that is, the first heating expansion valve 34 and the second heating expansion valve 44 are the same heating expansion valve. In other words, the two first heating passages 3 and the second heating passage 4 converge into a main passage on the side away from the air outlet 12, and the heating expansion valve is installed on the main passage.

[0074] In one embodiment, as shown in FIG1, the first heating passage 3 further includes a first heating check valve 35, which is disposed between the first condenser 31 and the first heating expansion valve 34. The second heating passage 4 further includes a second heating check valve 45, which is disposed between the second condenser 41 and the second heating expansion valve 44.

[0075] In one embodiment, as shown in FIG1, the temperature control device further includes a pressure sensor 8, which is disposed between the first heating passage 3 and the air outlet 12, and is used to detect the pressure of the refrigerant.

[0076] Specifically, when the temperature of the target area reaches the target value, the first heating solenoid valve 32 and the second heating solenoid valve 42 switch to the closed state. At this time, the refrigerant flow rate of the first heating passage 3 and the second heating passage 4 decreases, thereby causing the refrigerant pressure between the outlet 12 and the first heating passage 3 and the second heating passage 4 to rise. This solution uses a pressure sensor 8 to detect the refrigerant pressure at the outlet 12. When the refrigerant pressure is higher than the preset value, the pressure relief solenoid valve 61 opens, and the refrigerant is diverted using the pressure relief passage 6 to reduce the refrigerant pressure at the outlet 12, thereby preventing the refrigerant pressure in the pipeline from being too high.

[0077] In one embodiment, the temperature control device further includes two temperature sensors, which are respectively disposed in the first condenser 31 and the second condenser 41. The temperature sensors are used to detect the temperature of the target area.

[0078] Specifically, by providing temperature sensors on the first condenser 31 and the second condenser 41, the temperature of the target area can be monitored using the temperature sensors. Furthermore, when the temperature sensor detects that the temperature of the target area has reached the preset temperature, the system can control the compressor 1 to stop working or control the pressure relief solenoid valve 61 or the regulating solenoid valve to open, using the pressure relief passage 6 to divert the refrigerant in the first condenser 31 and the second condenser 41, or using the regulating passage 7 to accelerate the refrigerant flow rate in the first condenser 31 and the second condenser 41, thereby reducing the output heat of the first condenser 31 and the second condenser 41 and achieving cooling of the target area; when the temperature sensor detects that the temperature of the target area is lower than the preset temperature, the system can control the compressor 1 to start working or control the pressure relief solenoid valve 61 or the regulating solenoid valve to close, thereby closing the pressure relief passage 6 or the regulating passage 7, increasing the refrigerant flow rate in the first condenser 31 and the second condenser 41 or slowing down the refrigerant flow rate in the first condenser 31 and the second condenser 41, thereby making the heat exchange of the refrigerant at the first condenser 31 and the second condenser 41 more complete, increasing the output heat of the first condenser 31 and the second condenser 41, and achieving heating of the target area.

[0079] In one embodiment, the temperature control device further includes a controller, which is electrically connected to a pressure relief solenoid valve 61, a regulating solenoid valve, a first switching solenoid valve 51, a first heating solenoid valve 32, a second heating solenoid valve 42 and a pressure sensor 8, so as to control the opening and closing of the first heating passage 3, the second heating passage 4, the first switching passage 5, the pressure relief passage 6 and the regulating passage 7 as a whole.

[0080] In one embodiment, the compressor 1 is provided with temperature detection components at the inlet end 11 and the outlet end 12 respectively. These two sets of temperature detection components are used to monitor the return gas temperature and the exhaust gas temperature of the compressor 1. When the return gas temperature or the exhaust gas temperature is abnormal, an alarm is triggered to ensure the effective operation of the compressor 1 and to effectively maintain the service life of the compressor 1.

[0081] In one embodiment, the compressor 1 is provided with pressure detection components at the inlet end 11 and the outlet end 12 respectively. These two sets of pressure detection components are used to monitor the return pressure and exhaust pressure of the compressor 1, and to issue an alarm when the return pressure or exhaust pressure is abnormal, so as to ensure the effective operation of the compressor 1 and effectively maintain the service life of the compressor 1.

[0082] When the temperature control device includes a pressure relief passage 6, an adjustment passage 7, a first switching passage 5, and a second switching passage 9, in the first operating condition, the first switching solenoid valve 51 and the second switching solenoid valve 91 are closed, and the first condenser 31 and the second condenser 41 are connected in parallel. In this operating condition, firstly, the pressure relief solenoid valve 61 can control the opening and closing of the pressure relief passage 6, thereby diverting the refrigerant, thereby controlling the output heat of the first condenser 31 and the second condenser 41 and the pressure of the outlet end 12. Secondly, the first adjustment solenoid valve 71 and the second adjustment solenoid valve 72 can respectively fine-tune the output heat of the first condenser 31 and the second condenser 41 to improve the stability of the change in the output heat of the first condenser 31 and the second condenser 41. In the second operating condition, the first heating solenoid valve 32 and the first switching solenoid valve 51 are open, while the second heating solenoid valve 42, the third heating solenoid valve 36, and the second switching solenoid valve 91 are closed. The first condenser 31 and the second condenser 41 are connected in series, and the refrigerant flows through the first condenser 31 and the second condenser 41 in sequence. This type of operation is suitable for application scenarios where the output heat of the first condenser 31 is greater than that of the second condenser 41. In this operating condition, firstly, the pressure relief solenoid valve 61 can control the opening and closing of the pressure relief passage 6, thereby diverting the refrigerant flowing through the first condenser 31, thus controlling the output heat of the first condenser 31 and the pressure of the outlet 12, and adjusting the temperature of the first target area 101. Secondly, the first regulating solenoid valve 71 can control the opening and closing of the first branch, thereby diverting the refrigerant flowing through the second condenser 41, thus controlling the output heat of the second condenser 41, and adjusting the temperature of the second target area 102. In the third operating condition, the second heating solenoid valve 42 and the second switching solenoid valve 91 are open, while the first heating solenoid valve 32, the fourth heating solenoid valve, and the first switching solenoid valve 51 are closed. The second condenser 41 is connected in series with the first condenser 31, and the refrigerant flows sequentially through the second condenser 41 and the first condenser 31. This type of operation is suitable for application scenarios where the output heat of the second condenser 41 is greater than that of the first condenser 31. In this operating condition, firstly, the pressure relief solenoid valve 61 can control the opening and closing of the pressure relief passage 6, thereby diverting the refrigerant flowing through the second condenser 41, thus controlling the output heat of the second condenser 41 and the pressure of the outlet 12, and adjusting the temperature of the second target area 102. Secondly, the second regulating solenoid valve 72 can control the opening and closing of the second branch, thereby diverting the refrigerant flowing through the first condenser 31, thus controlling the output heat of the first condenser 31, and adjusting the temperature of the first target area 101.

[0083] This embodiment of the invention provides a drying system, as shown in FIG2. The drying system includes a chamber 100 and the aforementioned temperature control device, with a first condenser 31 and a second condenser 41 disposed within the chamber 100. Specifically, by disposing of the first condenser 31 and the second condenser 41 within the chamber 100, heat is reliably and stably supplied to the workpieces within the chamber 100 using the first condenser 31 and the second condenser 41, thereby effectively improving the drying efficiency of the workpieces. In practical implementation, this drying system can be applied to footwear production.

[0084] In one embodiment, the drying system further includes two conveyor lines. The housing 100 contains a first target area 101 and a second target area 102 for drying the workpiece. The two conveyor lines are correspondingly arranged to the first target area 101 and the second target area 102, and the conveyor lines pass through the housing 100, conveying the workpiece to the first target area 101 and the second target area 102. A first condenser 31 is correspondingly arranged to the first target area 101, and a second condenser 41 is correspondingly arranged to the second target area 102. Further, the two conveyor lines are distributed vertically, with the first target area 101 located below the second target area 102.

[0085] In one embodiment, as shown in FIG3, the first heating passage 3 includes two first condensers 31 and the second heating passage 4 includes two second condensers 41. The two first condensers 31 are respectively arranged on the left and right sides of the lower conveyor line, and the two second condensers 41 are respectively arranged on the left and right sides of the upper conveyor line, so as to make the temperature of the first target area 101 and the second target area 102 more uniform.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. [Simplified Explanation of the Diagram]

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without making progressive changes.

[0036] Figure 1 is a first schematic diagram of the temperature control device provided in an embodiment of the present invention;

[0037] Figure 2 is a second schematic diagram of the temperature control device provided in an embodiment of the present invention; and

[0038] Figure 3 is a schematic diagram of the drying system provided in an embodiment of the present invention.

Claims

1. A temperature control device, wherein, include: A compressor, the compressor including an inlet end and an outlet end; An evaporator includes an inlet end and an outlet end, the outlet end being connected to the inlet end; a first heating passage, one end of which is connected to the outlet end and the other end of which is connected to the inlet end, the first heating passage including a first condenser for outputting heat to a first target area; a second heating passage, one end of which is connected to the outlet end and the other end of which is connected to the inlet end, the second heating passage including a second condenser for outputting heat to a second target area; a first switching passage, one end of which is connected to the side of the first condenser away from the outlet end and the other end of which is connected to the side of the second condenser near the outlet end, the first switching passage including a first switching solenoid valve capable of controlling the on / off state of the first switching passage; A pressure relief passage, one end of which is connected to the outlet end and the other end of which is connected to the inlet end, includes a pressure relief solenoid valve and a third condenser. The pressure relief solenoid valve can control the opening and closing of the pressure relief passage. The third condenser is located outside the first target area and the second target area. A regulating passage includes a regulating solenoid valve, a first branch, and a second branch. The regulating solenoid valve includes a first regulating solenoid valve and a second regulating solenoid valve. The first regulating solenoid valve is located in the first branch, and the second regulating solenoid valve is located in the second branch. One end of the first branch is connected to the side of the first condenser away from the outlet end, and the other end of the first branch is connected to the side of the third condenser near the outlet end. One end of the second branch is connected to the side of the second condenser away from the outlet end, and the other end of the second branch is connected to the side of the third condenser near the outlet end.

2. The temperature control device as claimed in claim 1, wherein, The temperature control device also includes a second switching passage. One end of the second switching passage is connected to the side of the second condenser away from the outlet end, and the other end of the second switching passage is connected to the side of the first condenser close to the outlet end. The second switching passage includes a second switching solenoid valve, which can control the opening and closing of the second switching passage.

3. The temperature control device as described in claim 2, wherein, The first heating passage further includes a first heating solenoid valve, which is disposed between the first condenser and the outlet end, and the first heating solenoid valve can disconnect the connection between the outlet end and the first condenser; the second heating passage further includes a second heating solenoid valve, which is disposed between the second condenser and the outlet end, and the second heating solenoid valve can disconnect the connection between the outlet end and the second condenser.

4. The temperature control device as described in claim 3, wherein, The first heating passage further includes a third heating solenoid valve, which is located on the side of the first condenser away from the outlet end. A first node is formed between the first condenser and the third heating solenoid valve, and one end of the first switching passage is connected to the first node. A second node is formed between the second condenser and the second heating solenoid valve, and the other end of the first switching passage is connected to the second node. And / or, the second heating passage further includes a fourth heating solenoid valve, which is located on the side of the second condenser away from the outlet end. A third node is formed between the second condenser and the fourth heating solenoid valve, and one end of the second switching passage is connected to the third node. A fourth node is formed between the first condenser and the first heating solenoid valve, and the other end of the second switching passage is connected to the fourth node.

5. The temperature control device as claimed in claim 1, wherein, The pressure relief solenoid valve is located on the side of the third condenser near the outlet end.

6. The temperature control device as claimed in claim 1, wherein, The third condenser is thermally connected to the evaporator, and the heat from the third condenser can be transferred to the evaporator.

7. A drying system, wherein, It includes a housing and a temperature control device as described in any one of claims 1 to 6, wherein the first condenser and the second condenser are disposed within the housing.

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