Novel adjustable temperature control device and drying system

Abstract

The invention belongs to the technical field of drying equipment, and discloses a novel adjustable temperature control device and a drying system.The novel adjustable temperature control device comprises a compressor; the heat supply channel comprises a first condenser, a first throttling element and a first pipeline passing through the first condenser and the first throttling element, the two ends of the first condenser are connected with the compression outlet and the first throttling element respectively, and the first condenser is used for releasing heat; two ends of the evaporator are respectively connected with the compression inlet and the first throttling element; the first passage comprises a heat exchange device, a valve structure and a second pipeline passing through the heat exchange device and the valve structure, the heat exchange device comprises a first end and a second end, the first end is connected with the first throttling element, the second end is connected with the compression inlet, and the heat exchange device can absorb heat; the valve structure is used for controlling on-off of the first passage. The technical problem that in the prior art, it is difficult to raise the temperature of the drying oven to the preset temperature in cold weather can be solved.

Description

Technical Field

[0001] The present application belongs to the technical field of drying equipment, and specifically relates to a novel adjustable temperature control device and a drying system. Background Art

[0002] The drying equipment uses the compressor to deliver high-temperature working fluid to the condenser, and then the condenser delivers the heat of the working fluid to the oven to increase the temperature inside the oven. When it is cold, the evaporator can absorb less heat, and the working fluid heat delivered by the evaporator to the compressor is reduced. Therefore, the working fluid heat output by the compressor is reduced, and the heat delivered by the condenser to the oven is reduced, making it difficult to raise the oven to the preset temperature. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a new adjustable temperature control device and drying system to solve the technical problem in the prior art that it is difficult to increase the oven to a preset temperature when the weather is cold.

[0004] To achieve the above-mentioned objectives, an embodiment of the first aspect of the present application provides a new type of adjustable temperature control device, including: a compressor, having a compression inlet and a compression outlet; at least one heat supply passage, the heat supply passage including a first condenser, a first throttling member and a first pipeline passing through the first condenser and the first throttling member, the two ends of the first condenser are respectively connected to the compression outlet and the first throttling member, and the first condenser is used to release heat; an evaporator, the two ends of the evaporator are respectively connected to the compression inlet and the first throttling member, and the evaporator is used to absorb heat; a first passage, the first passage includes a heat exchange device, a valve structure and a second pipeline passing through the heat exchange device and the valve structure, the heat exchange device includes a first end and a second end, the first end is connected to the first throttling member, and the second end is connected to the compression inlet, and the heat exchange device can absorb heat; the valve structure is used to control the on and off of the first passage to adjust the heat delivered by the heat exchange device to the compressor.

[0005] In some embodiments, the new adjustable temperature control device also includes a first valve, a third pipeline and a second throttling device; the third pipeline passes through the first valve, one end of the third pipeline is connected to the compression outlet, and the other end of the third pipeline is connected to the second end; the two ends of the second throttling device are respectively connected to the evaporator and the first end.

[0006] In some embodiments, the valve structure includes a second valve, which is disposed between the second end and the compression inlet; and the third pipeline is connected between the second end and the second valve.

[0007] In some embodiments, the first valve includes a three-way switching valve, one end of which is connected to an end of the third pipeline away from the compression outlet, and the other two ends of the three-way switching valve are connected to the first passage and located between the second end and the compression inlet.

[0008] In some embodiments, the valve structure includes a third valve, which is arranged between the first end and the first throttling member; one end of the second throttling member is connected between the first end and the third valve, and the other end of the second throttling member is connected between the evaporator and the first throttling member.

[0009] In some embodiments, the first valve is an expansion valve.

[0010] In some embodiments, the heat exchange device includes a heat exchanger and at least one second condenser, and both ends of the heat exchanger are respectively connected to the first throttling device and the compression inlet; the second condenser is arranged in the heat supply passage, and the two ends of the second condenser are respectively connected to the first condenser and the first throttling device, and the second condenser is thermally connected to the heat exchanger and is used for heat exchange with the heat exchanger.

[0011] In some embodiments, the heat exchange area of ​​the second condenser is smaller than the heat exchange area of ​​the heat exchanger.

[0012] An embodiment of the second aspect of the present application provides a drying system, comprising a box and a new adjustable temperature control device of any one of the embodiments of the first aspect, wherein the first condenser is arranged in the box, and the evaporator and the heat exchange device are arranged outside the box.

[0013] In some embodiments, the drying system includes an exhaust passage connected to the housing, and the heat exchange device is thermally connected to the exhaust passage and is used for heat exchange with the exhaust passage.

[0014] The beneficial effects of the novel adjustable temperature control device and drying system provided by the present application are: when the temperature is low, the valve structure can be opened to allow the evaporator and the heat exchange device to absorb heat, increase the heat absorbed by the working fluid, and be able to deliver more heat to the compressor, so that the compressor outputs more heat, so that the first condenser can release more heat, and increase the temperature of the heating space; it can solve the technical problem that the working fluid heat output by the compressor is reduced when it is cold, making it difficult for the oven to rise to the preset temperature. When the temperature is high, the valve structure can be closed to reduce the heat absorption of the heat exchange device, reduce the heat delivered to the compressor, reduce the heat output of the compressor and the heat release of the first condenser, and reduce the temperature of the heating space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 Schematic diagram of a novel adjustable temperature control device provided in some embodiments of the present application Figure 1 ;

[0017] Figure 2 Schematic diagram of a novel adjustable temperature control device provided in some embodiments of the present application Figure 2 ;

[0018] Figure 3 Schematic diagram of a novel adjustable temperature control device provided in some embodiments of the present application Figure 3 ;

[0019] Figure 4 Schematic diagram of a novel adjustable temperature control device provided in some embodiments of the present application Figure 4 ;

[0020] Figure 5 A schematic diagram of a drying system provided for some embodiments of the present application.

[0021] Among them, the reference numerals in the figure are:

[0022] 1000. Drying system;

[0023] 100. New adjustable temperature control device;

[0024] 10. compressor; 11. compression inlet; 12. compression outlet;

[0025] 20. heat supply passage; 21. first pipeline; 22. first condenser; 23. first throttling element; 24. second filter; 25. liquid storage device;

[0026] 30. Evaporator;

[0027] 40. first passage; 41. second pipeline; 42. valve structure; 421. second valve; 422. third valve;

[0028] 50. The third pipeline;

[0029] 60. First valve;

[0030] 70. heat exchange device; 71. heat exchanger; 711. first end; 712. second end; 72. second condenser;

[0031] 80. Separator;

[0032] 91. second throttle element; 92. first filter;

[0033] 200, box body;

[0034] 300. Exhaust duct. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0037] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] An embodiment of the first aspect of the present application provides a new type of adjustable temperature control device for controlling temperature. The present application uses the new type of adjustable temperature control device for a drying system as an example for illustration. It can be understood that the new type of adjustable temperature control device can also be used for other cooling or heating air-conditioning systems.

[0040] The first embodiment of the present application provides a novel adjustable temperature control device, please refer to Figure 1 and Figure 2The novel adjustable temperature control device 100 comprises a compressor 10, at least one heat supply passage 20, an evaporator 30 and a first passage 40; the compressor 10 has a compression inlet 11 and a compression outlet 12; the heat supply passage 20 comprises a first condenser 22, a first throttling member 23 and a first pipeline 21 passing through the first condenser 22 and the first throttling member 23, the two ends of the first condenser 22 are respectively connected to the compression outlet 12 and the first throttling member 23, and the first condenser 22 is used for heat release; the two ends of the evaporator 30 are respectively connected to the compression inlet 11 is connected to the first throttling member 23, and the evaporator 30 is used to absorb heat; the first passage 40 includes a heat exchange device 70, a valve structure 42 and a second pipeline 41 passing through the heat exchange device 70 and the valve structure 42, the heat exchange device 70 includes a first end 711 and a second end 712, the first end 711 is connected to the first throttling member 23, and the second end 712 is connected to the compression inlet 11, and the heat exchange device 70 can absorb heat; the valve structure 42 is used to control the opening and closing of the first passage 40 to adjust the heat delivered by the heat exchange device 70 to the compressor 10.

[0041] The compressor 10 is used to compress the working medium. The working medium enters the compressor 10 from the compression inlet 11. The compressor 10 compresses the working medium into a high-temperature and high-pressure state and outputs the working medium from the compression outlet 12. The working medium releases heat when it changes from gas to liquid and absorbs heat when it changes from liquid to gas. The temperature in a certain space can be adjusted by the heat release and heat absorption of the working medium. Optionally, the working medium includes Freon, carbon dioxide, etc., which are easy to convert between gas and liquid.

[0042] The devices in the same heat supply passage 20 are all connected in series, that is, the first condenser 22, the first throttling element 23 and the first pipeline 21 are connected in series.

[0043] The inlet end of the first condenser 22 is connected to the compression outlet 12 through the first pipeline 21, and can receive the high-temperature and high-pressure gaseous working medium output from the compression outlet 12. The first condenser 22 can exchange heat with the external environment, and release heat to the external environment to cool down and liquefy the working medium. The first condenser 22 is arranged in the heating space, and can transfer the heat of the working medium to the heating space to heat up the heating space. Optionally, a plurality of heat supply passages 20 can be provided to increase the heat release of the first condenser 22; a single heat supply passage 20 can also be provided to make the new adjustable temperature control device 100 simpler.

[0044] The outlet end of the first condenser 22 is connected to the outlet end of the first throttling member 23. The first throttling member 23 can reduce the pressure of the working medium. The first throttling member 23 can receive the low-temperature and high-pressure working medium output from the first condenser 22 and output the low-temperature and low-pressure liquid working medium. Optionally, the first throttling member 23 can include an expansion valve, a capillary tube, etc., which can stably reduce the pressure of the working medium.

[0045] The inlet end of the evaporator 30 is connected to the outlet end of the first throttling member 23, and can receive the low-temperature and low-pressure liquid working medium output from the first throttling member 23. The evaporator 30 can exchange heat with the external environment, absorb the heat of the external environment to heat the working medium and evaporate it into a gaseous state. The evaporator 30 is arranged outside the heating space and can absorb the heat outside the heating space. The outlet end of the evaporator 30 is connected to the compression inlet 11, and can transport the heated gaseous working medium to the compressor 10.

[0046] All components in the first passage 40 are connected in series, that is, the valve structure 42, the heat exchange component 70 and the second pipeline 41 are connected in series.

[0047] The first end 711 of the heat exchange device 70 is connected to the outlet end of the first throttling member 23 through the second pipeline 41. The heat exchange device 70 can receive the low-temperature and low-pressure working medium output by the first throttling member 23. The heat exchange device 70 can exchange heat with the external environment and absorb the heat of the external environment to heat the working medium. The heat exchange device 70 is arranged outside the heating space and can absorb the heat outside the heating space. The second end 712 of the heat exchange device 70 is connected to the compression inlet 11 and can transport the heated working medium to the compressor 10.

[0048] The valve structure 42 is used to control the on-off of the first passage 40, that is, when the valve structure 42 is opened, the first passage 40 is connected, and the working fluid can flow from the first throttling member 23 through the second pipeline 41, the heat exchange device 70, and the valve structure 42 into the compression inlet 11, and the heat exchange device 70 can transfer the absorbed heat to the compressor 10; when the valve structure 42 is closed, the first passage 40 is disconnected, and the working fluid cannot flow into the compression inlet 11 through the valve structure 42, and the working fluid cannot flow into the compression inlet 11 through the heat exchange device 70, and the heat exchange device 70 cannot absorb heat and transfer it to the compressor 10.

[0049] Please refer to Figure 2 When the temperature is high, the valve structure 42 is closed, and the compressor 10 compresses the working medium and outputs a high-temperature and high-pressure gaseous working medium from the compression outlet 12. The gaseous working medium flows into the first condenser 22 from the compression outlet 12. The first condenser 22 performs heat exchange with the heating space, releases heat to the heating space to cool down and liquefy the working medium, and heats up the heating space; the cooled working medium flows into the first throttling member 23, and the liquid working medium flows into the evaporator 30 after the pressure is reduced by the first throttling member 23. The evaporator 30 performs heat exchange with the external environment, absorbs heat from the external environment to heat up the working medium and evaporate it into a gaseous state, and the heated gaseous working medium flows into the compressor 10.

[0050] Please refer to Figure 1When the temperature is low, the valve structure 42 is opened, the compressor 10 compresses the working medium and outputs a high-temperature and high-pressure gaseous working medium from the compression outlet 12. The gaseous working medium flows into the first condenser 22 from the compression outlet 12. The first condenser 22 exchanges heat with the heating space, releases heat to the heating space to cool down and liquefy the working medium, and the heating space is heated. After the temperature is reduced, the liquid working medium flows into the first throttling member 23, and the pressure is reduced to form a low-temperature and low-pressure liquid working medium. A part of the low-temperature and low-pressure liquid working medium flows into the evaporator 30. The evaporator 30 It exchanges heat with the external environment outside the heating space, absorbs heat from the external environment to heat the working fluid and evaporate it into a gaseous state, and a part of the heated gaseous working fluid flows into the compressor 10; another part of the low-temperature and low-pressure liquid working fluid flows into the heat exchange device 70 through the second pipeline 41, and the heat exchange device 70 exchanges heat with the external environment outside the heating space, absorbs heat from the external environment to heat the working fluid and evaporate it into a gaseous state, and another part of the heated gaseous working fluid flows into the compressor 10, thereby increasing the heat of the working fluid flowing into the compressor 10.

[0051] The beneficial effects of the embodiment of the present application are: when the temperature is low, the valve structure 42 can be opened so that the evaporator 30 and the heat exchange device 70 can absorb heat, which increases the heat absorbed by the working fluid, and can deliver more heat to the compressor 10, so that the compressor 10 outputs more heat, so that the first condenser 22 can release more heat, and increase the temperature of the heating space; it can solve the technical problem that the working fluid heat output by the compressor 10 is reduced when it is cold, making it difficult for the oven to rise to the preset temperature. When the temperature is high, the valve structure 42 can be closed to reduce the heat absorption of the heat exchange device 70, reduce the heat delivered to the compressor 10, reduce the heat output of the compressor 10 and the heat release of the first condenser 22, and reduce the temperature of the heating space.

[0052] In some embodiments, please refer to Figure 3 and Figure 4 The novel adjustable temperature control device 100 also includes a first valve 60, a third pipeline 50 and a second throttling member 91; the third pipeline 50 passes through the first valve 60, one end of the third pipeline 50 is connected to the compression outlet 12, and the other end of the third pipeline 50 is connected to the second end 712; the two ends of the second throttling member 91 are respectively connected to the evaporator 30 and the first end 711.

[0053] The first valve 60 and the third pipeline 50 are connected in series, and the first valve 60 can control the opening and closing of the third pipeline 50. One end of the third pipeline 50 is connected to the compression outlet 12, and the other end is connected to the second end 712 of the heat exchange device 70. That is to say, when the first valve 60 is opened, the working fluid can be output from the compression outlet 12, and flow into the heat exchange device 70 through the third pipeline 50 and the second end 712 in sequence, and then flow out of the heat exchange device 70 from the first end 711. Optionally, the first valve 60 can be a solenoid valve to facilitate the control of the opening and closing of the first valve 60.

[0054] The inlet end of the second throttle 91 is connected to the first end 711, and the outlet end of the second throttle 91 is connected to the inlet end of the evaporator 30. The working fluid flowing out of the first end 711 of the heat exchange device 70 can flow into the evaporator 30 through the second throttle 91. The second throttle 91 can reduce the pressure of the working fluid, can receive the low-temperature and high-pressure working fluid flowing out of the first end 711, and output the low-temperature and low-pressure working fluid. Optionally, the second throttle 91 can include an expansion valve, a capillary tube, etc., which can stably reduce the pressure of the working fluid.

[0055] Please refer to Figure 4 When the temperature is high, the valve structure 42 is closed and the first valve 60 is opened. A part of the working fluid flows into the first condenser 22 from the compression outlet 12. The first condenser 22 performs heat exchange with the heating space, releases heat to the heating space to cool the working fluid and liquefy it, and the heating space is heated. A part of the cooled liquid working fluid flows into the evaporator 30 from the first throttle 23. Another part of the working fluid flows out of the compression outlet 12 and flows into the heat exchange device 70 through the third pipeline 50. The heat exchange device 70 performs heat exchange with the external environment outside the heating space, releases heat to the external environment to cool the working fluid and liquefy it. Another part of the cooled liquid working fluid flows into the evaporator 30 from the second throttle 91. At this time, the heat exchange device 70 acts as a condenser.

[0056] Please refer to Figure 3 When the temperature is low, the valve structure 42 is opened and the first valve 60 is closed, and the heat exchange device 70 can still absorb heat. At this time, the heat exchange device 70 acts as an evaporator.

[0057] The beneficial effect of the embodiment of the present application is that: when the temperature is high, the valve structure 42 can be closed and the first valve 60 can be opened, so that a part of the high-temperature and high-pressure working fluid output by the compressor 10 flows into the heat exchange device 70, reducing the high-temperature and high-pressure working fluid flowing from the compressor 10 into the first condenser 22, thereby reducing the heat release of the first condenser 22 and lowering the temperature of the heating space. When the temperature is low, the valve structure 42 can be opened and the first valve 60 can be closed, so that the heat exchange device 70 can absorb heat, so that the heat exchange device 70 can transfer heat to the compressor 10, increase the heat output by the compressor 10, thereby increasing the heat release of the first condenser 22 and lowering the temperature of the heating space.

[0058] In some embodiments, please refer to Figure 3 and Figure 4 The valve structure 42 includes a second valve 421 , which is disposed between the second end 712 and the compression inlet 11 ; the third pipeline 50 is connected between the second end 712 and the second valve 421 .

[0059] The second valve 421, the heat exchange device 70 and the second pipeline 41 are connected in series, one end of the second valve 421 is connected to the second end 712, and the other end is connected to the compression inlet 11. The second valve 421 can control the opening and closing of the first passage 40. Optionally, the second valve 421 can be a solenoid valve to facilitate the control of the opening and closing of the second valve 421.

[0060] One end of the third pipeline 50 away from the compression outlet 12 is connected to the second pipeline 41 between the second end 712 and the second valve 421 . The third pipeline 50 is connected to the second end 712 through the second pipeline 41 .

[0061] When the second valve 421 is open and the first valve 60 is closed, the working fluid can flow into the compression inlet 11 through the heat exchange device 70 and the second valve 421. When the second valve 421 is closed and the first valve 60 is open, the working fluid can flow into the heat exchange device 70 through the third pipeline 50 and the second pipeline 41.

[0062] The beneficial effect of the embodiment of the present application is that the third pipeline 50 is connected to the second end 712 through the second pipeline 41, which can make the pipeline more concentrated and improve the utilization rate of the second pipeline 41, so that the second end 712 of the heat exchange device 70 only needs to be connected to the second pipeline 41, and does not need to be directly connected to the third pipeline 50, and the structure of the heat exchange device 70 is simpler.

[0063] In some embodiments, the first valve 60 includes a three-way switching valve, one end of which is connected to an end of the third pipeline 50 away from the compression outlet 12, and the other two ends of the three-way switching valve are connected to the first passage 40 and are located between the second end 712 and the compression inlet 11.

[0064] The three-way switching valve has three ports. For the convenience of description, the end of the three-way switching valve connected to the third pipeline 50 is defined as the first end 711 port, and the other two ends are the second end 712 port and the third port. The second end 712 port is connected to the compression inlet 11, and the first end 711 port is connected to the second end 712. The first end 711 port and the second end 712 port are not connected; when the third port is connected to the first end 711 port, the third port and the second end 712 port are not connected, and the working fluid can flow into the heat exchange device 70 through the third pipeline 50 and the second pipeline 41; when the third port is connected to the second end 712 port, the third port and the first end 711 port are not connected, and the working fluid can flow into the compression inlet 11 through the heat exchange device 70 and the second pipeline 41.

[0065] The beneficial effect of the embodiment of the present application is that a three-way switching valve is set to connect the third pipeline 50 and the second pipeline 41, and the third pipeline 50 and the second pipeline 41 can share a valve. One valve can be used to control the opening and closing of the third pipeline 50 and the first passage 40, making the structure of the new adjustable temperature control device 100 simpler.

[0066] In some embodiments, please refer to Figure 3 and Figure 4 The valve structure 42 includes a third valve 422, which is arranged between the first end 711 and the first throttling member 23; one end of the second throttling member 91 is connected between the first end 711 and the third valve 422, and the other end of the second throttling member 91 is connected between the evaporator 30 and the first throttling member 23.

[0067] The two ends of the third valve 422 are respectively connected to the first end 711 and the outlet end of the first throttle 23. The third valve 422, the heat exchange device 70 and the second pipeline 41 are connected in series, and the third valve 422 can control the opening and closing of the first passage 40.

[0068] One end of the second throttle member 91 is connected to the second pipeline 41 between the first end 711 and the third valve 422, and the second throttle member 91 is connected to the first end 711 through the second pipeline 41; the other end of the second throttle member 91 is connected to the first pipeline 21 between the inlet of the evaporator 30 and the first throttle member 23, and the second throttle member 91 is connected to the inlet of the evaporator 30 through the first pipeline 21.

[0069] The beneficial effects of the embodiment of the present application are as follows: the third valve 422 can separate the heat exchange device 70 from the first throttling member 23, and after the third valve 422 is closed, it can prevent the working fluid from flowing from the first throttling member 23 into the heat exchange device 70, thereby reducing the working fluid flowing into the first passage 40. The second throttling member 91 is connected to the first end 711 through the second pipeline 41, and the second throttling member 91 is connected to the evaporator 30 through the first pipeline 21, which can make the pipelines more centralized and improve the utilization rate of the first pipeline 21 and the second pipeline 41. The inlet end of the evaporator 30 does not need to be directly connected to the second throttling member 91, and the structure of the evaporator 30 is simpler; the first end 711 of the heat exchange device 70 only needs to be connected to the second pipeline 41, and does not need to be directly connected to the second throttling member 91, and the structure of the heat exchange device 70 is simpler.

[0070] In some embodiments, the first valve 60 is an expansion valve.

[0071] The expansion valve can control the flow rate of the working medium flowing through the third pipeline 50 , and further can control the flow rate of the working medium flowing from the compression outlet 12 into the heat exchange device 70 .

[0072] When the valve structure 42 is closed and the first valve 60 is opened, the working fluid flowing out of the compression outlet 12 flows into the first condenser 22 and the heat exchange device 70 respectively, and the expansion valve can control the flow rate of the working fluid flowing from the compression outlet 12 into the heat exchange device 70. Since the total amount of working fluid flowing out of the compression outlet 12 remains unchanged, the expansion valve can control the working fluid flowing from the compression outlet 12 into the first condenser 22, thereby facilitating the control of the heat release of the first condenser 22.

[0073] In some embodiments, please refer to Figures 1 to 4 The heat exchange device 70 includes a heat exchanger 71 and at least one second condenser 72. The two ends of the heat exchanger 71 are respectively connected to the first throttling member 23 and the compression inlet 11; the second condenser 72 is arranged in the heat supply passage 20, and the two ends of the second condenser 72 are respectively connected to the first condenser 22 and the first throttling member 23. The second condenser 72 is thermally connected to the heat exchanger 71 and is used for heat exchange with the heat exchanger 71.

[0074] The heat exchanger 71 is the part of the heat exchange device 70 located in the first passage 40. The heat exchanger 71, the second pipeline 41 and the valve structure 42 are connected in series. The first end 711 and the second end 712 refer to the first end 711 and the second end 712 of the heat exchanger 71; the heat exchanger 71 is connected in series with the second pipeline 41 and the valve structure 42. When the valve structure 42 is opened, the heat exchanger 71 can absorb heat, and the heat exchanger 71 acts as an evaporator. When the valve structure 42 is closed and the first valve 60 is opened, the heat exchanger 71 can release heat, and the heat exchanger 71 acts as a condenser. Optionally, the heat exchanger 71 can use a condenser to improve the heat release effect. Optionally, the heat exchange device 70 can be a three-inlet and three-outlet condenser, with one inlet connected to one outlet, and the heat exchanger 71 and the second condenser 72 are more concentrated, and the heat exchange efficiency is high.

[0075] The second condenser 72 is connected in series with the first condenser 22, the first throttling piece 23, and the first pipeline 21. The inlet end of the second condenser 72 is connected to the outlet end of the first condenser 22, and the outlet end of the second condenser 72 is connected to the inlet end of the first throttling piece 23. The working medium in the first condenser 22 flows from the second condenser 72 to the first throttling piece 23. The working medium flows into the second condenser 72 after being cooled by the first condenser 22. The second condenser 72 can exchange heat with the external environment outside the heating space, release heat to the external environment, and further cool the working medium, so that the working medium can be further liquefied.

[0076] Optionally, the second condenser 72 is in contact with the heat exchanger 71 , which can improve the heat exchange efficiency between the second condenser 72 and the heat exchanger 71 .

[0077] The beneficial effect of the embodiment of the present application is that when the temperature is high, the second condenser 72 can release heat to the environment outside the heating space, which can reduce the heat of the working fluid, reduce the heat delivered to the compression inlet 11, and further reduce the heat output by the compressor 10 and the heat released by the first condenser 22. When the temperature is low, the valve structure 42 is opened, the heat exchanger 71 absorbs heat, and the heat released by the second condenser 72 can be absorbed by the heat exchanger 71, so that the heat released by the second condenser 72 can be utilized.

[0078] In some embodiments, the heat exchange area of ​​the second condenser 72 is smaller than the heat exchange area of ​​the heat exchanger 71 .

[0079] The area of ​​the second condenser 72 that exchanges heat with the heat exchanger 71 is smaller than the area of ​​the heat exchanger 71 that exchanges heat with the second condenser 72 .

[0080] The beneficial effect of the embodiment of the present application is that the heat exchange area of ​​the second condenser 72 is smaller than the heat exchange area of ​​the heat exchanger 71, so that the second condenser 72 only exchanges heat with a part of the heat exchanger 71, and the other part of the heat exchanger 71 can exchange heat with the external environment, so that the heat exchanger 71 can stably exchange heat with the external environment.

[0081] In some embodiments, please refer to Figure 3 and Figure 4 The novel adjustable temperature control device 100 further includes a first filter 92 connected in series with the second throttling member 91, the outlet end of the first filter 92 is connected to the inlet end of the second throttling member 91, the inlet end of the first filter 92 is connected to the second pipe between the third valve 422 and the first end 711, and the first filter 92 is connected to the first end 711 through the second pipe. The working fluid of the heat exchange device 70 can flow into the second throttling member 91 through the first filter 92, and the first filter 92 can filter impurities in the working fluid to prevent the second throttling member 91 from being blocked.

[0082] In some embodiments, please refer to Figure 3 and Figure 4 The heat supply passage 20 also includes a second filter 24, which is connected in series with the first condenser 22, the second condenser 72, the first throttling device 23, and the first pipeline 21. The inlet end of the second filter 24 is connected to the outlet end of the first condenser 22, and the outlet end of the second filter 24 is connected to the inlet end of the first throttling device 23. The working fluid in the first condenser 22 can flow into the first throttling device 23 through the second filter 24. The second filter 24 can filter impurities in the working fluid to prevent the first throttling device 23 from being blocked.

[0083] In some embodiments, please refer to Figure 3 and Figure 4 The heat supply passage 20 further includes a liquid reservoir 25, which is connected in series with the first condenser 22, the second condenser 72, the second filter 24, the first throttling member 23, and the first pipeline 21. The inlet end of the liquid reservoir 25 is connected to the outlet end of the second condenser 72, and the outlet end of the liquid reservoir 25 is connected to the inlet end of the filter. The liquid reservoir 25 can store the working medium and adjust the circulation amount of the working medium. The liquid reservoir 25 can filter the moisture in the working medium to prevent the first throttling member 23 from being blocked.

[0084] In some embodiments, please refer to Figure 3 and Figure 4The novel adjustable temperature control device 100 further includes a separator 80, which is connected to the compression inlet 11 and the compression outlet 12, and can separate moisture and impurities in the working fluid, so that the novel adjustable temperature control device 100 can operate stably.

[0085] In some embodiments, please refer to Figure 3 and Figure 4 The novel adjustable temperature control device 100 includes a compressor 10, at least one heat supply passage 20, an evaporator 30 and a first passage 40; the compressor 10 has a compression inlet 11 and a compression outlet 12; the heat supply passage 20 includes a first condenser 22, a second condenser 72, a first throttling member 23 and a first pipeline 21 passing through the first condenser 22, the second condenser 72 and the first throttling member 23, the two ends of the first condenser 22 are respectively connected to the compression outlet 12 and the second condenser 72, the two ends of the second condenser 72 are respectively connected to the first condenser 22 and the first throttling member 23, and the first condenser 22 and the second condenser 72 are used for heat release. The two ends of the evaporator 30 are respectively connected to the compression inlet 11 and the first throttling member 23, and the evaporator 30 is used for heat absorption.

[0086] The first passage 40 includes a heat exchanger 71, a valve structure 42, and a second pipeline 41 passing through the heat exchanger 71 and the valve structure 42. The heat exchanger 71 includes a first end 711 and a second end 712. The first end 711 is connected to the first throttling member 23 through the second pipeline 41, and the second end 712 is connected to the compression inlet 11. The heat exchanger 71 can absorb heat; the heat exchanger 71 is thermally connected to the second condenser 72 and is used for heat exchange with the heat exchanger 71. The valve structure 42 is used to control the opening and closing of the first passage 40 to adjust the heat delivered by the heat exchanger 71 to the compressor 10. The valve structure 42 includes a second valve 421 and a third valve 422. The second valve 421 is arranged between the second end 712 and the compression inlet 11; the third valve 422 is arranged between the first end 711 and the first throttling member 23.

[0087] The novel adjustable temperature control device 100 further includes a first valve 60, a third pipeline 50 and a second throttle 91; the third pipeline 50 passes through the first valve 60, one end of the third pipeline 50 is connected to the compression outlet 12, and the other end of the third pipeline 50 is connected to the second end 712. The two ends of the second throttle 91 are respectively connected to the evaporator 30 and the first end 711, one end of the second throttle 91 is connected between the first end 711 and the third valve 422, and the other end of the second throttle 91 is connected between the evaporator 30 and the first throttle 23.

[0088] Please refer to Figure 4When the temperature is high, the second valve 421 and the third valve 422 are closed and the first valve 60 is opened. The compressor 10 compresses the working medium and outputs a high-temperature and high-pressure gaseous working medium from the compression outlet 12. A portion of the gaseous working medium flows into the first condenser 22 from the compression outlet 12. The first condenser 22 performs heat exchange with the heating space, releases heat to the heating space to cool down and liquefy the working medium, and the heating space is heated. After the working medium is cooled by the first condenser 22, it flows into the second condenser 72. The second condenser 72 can exchange heat with the external environment outside the heating space, release heat to the external environment and further cool down the working medium. The cooled liquid working medium flows into the first throttling member 23. After the pressure of the liquid working medium is reduced by the first throttling member 23, it becomes a low-temperature and low-pressure liquid working medium. The low-temperature and low-pressure liquid working medium flows into the evaporator 30. Another part of the gaseous working medium flows out of the compression outlet 12 and flows into the heat exchange device 70 through the third pipeline 50. The heat exchange device 70 performs heat exchange with the external environment outside the heating space, releases heat to the external environment to cool the working medium and liquefy it, and another part of the cooled liquid working medium flows from the second throttle 91 into the evaporator 30. The evaporator 30 performs heat exchange with the external environment, absorbs heat from the external environment to heat the working medium and evaporate it, and the heated working medium flows into the compressor 10.

[0089] Please refer to Figure 3 When the temperature is low, the second valve 421 and the third valve 422 are opened and the first valve 60 is closed. The compressor 10 compresses the working medium and outputs a high-temperature and high-pressure gaseous working medium from the compression outlet 12. The working medium flows into the first condenser 22 from the compression outlet 12. The first condenser 22 exchanges heat with the heating space, releases heat to the heating space to cool down and liquefy the working medium, and heats up the heating space. After the working medium is cooled by the first condenser 22, it flows into the second condenser 72. The second condenser 72 can exchange heat with the heat exchanger 71. The second condenser 72 releases heat to the heat exchanger 71 and further cools down the working medium. After the liquid working medium is cooled, it flows into the first throttling member 23 and its pressure is reduced to form a low-temperature and low-pressure liquid working medium. A portion of the low-temperature and low-pressure liquid working medium flows into the evaporator 30, and the evaporator 30 performs heat exchange with the external environment outside the heating space, absorbs heat from the external environment to heat the working medium and evaporates it into a gaseous state, and a portion of the heated gaseous working medium flows into the compressor 10; another portion of the low-temperature and low-pressure liquid working medium flows into the heat exchange device 70 through the second pipeline 41, and the heat exchange device 70 performs heat exchange with the second condenser 72 and the external environment outside the heating space, absorbs heat from the second condenser 72 and the external environment to heat the working medium and evaporates it into a gaseous state, and another portion of the heated gaseous working medium flows into the compressor 10, thereby increasing the heat of the working medium flowing into the compressor 10.

[0090] The second aspect of the present application provides a drying system. Figure 5The drying system 1000 includes a box body 200 and a novel adjustable temperature control device 100 according to any one of the first aspect embodiments, wherein the first condenser 22 is disposed inside the box body 200 , and the evaporator 30 and the heat exchange device 70 are disposed outside the box body 200 .

[0091] The box 200 is a heating space. The first condenser 22 is arranged in the box 200 and can release heat into the box 200 to increase the temperature in the box 200. The evaporator 30 is arranged outside the box 200 and can absorb heat outside the box 200. The heat exchanger 71 is arranged outside the box 200 and can absorb heat outside the box 200 or release heat outside the box 200. Optionally, the drying system 1000 is arranged in a workshop, and the evaporator 30 is arranged in the workshop. When the temperature is high, the evaporator 30 can cool the workshop.

[0092] The beneficial effect of the embodiment of the present application is that: the embodiment of the present application includes the box 200 and the new adjustable temperature control device 100 of any one of the first aspect embodiments, which can open the valve structure 42 to increase the temperature inside the box 200 when the temperature is low, and has all the advantages of the above-mentioned new adjustable temperature control device 100.

[0093] In some embodiments, please refer to Figure 5 The drying system 1000 includes an exhaust passage 300 connected to the housing 200 , and the heat exchange device 70 is thermally connected to the exhaust passage 300 and is used for heat exchange with the exhaust passage 300 .

[0094] The exhaust passage 300 is used to exhaust the waste gas in the box body 200. Optionally, the outlet of the exhaust passage 300 is located outside the workshop, so that the waste gas can be discharged outside the workshop.

[0095] The heat exchange device 70 is thermally connected to the air extraction channel 300. When the valve structure 42 is opened, the heat exchange device 70 can absorb the heat in the air extraction channel 300. When the valve structure 42 is closed and the first valve 60 is opened, the heat exchange device 70 can release heat to the air extraction channel 300. Optionally, the heat exchange device 70 is arranged in the air extraction channel 300 to improve the heat exchange efficiency between the heat exchange device 70 and the air extraction channel 300.

[0096] The beneficial effect of the embodiment of the present application is that the heat exchange device 70 is arranged in the exhaust duct 300. When the temperature is low, the heat exchange device 70 can absorb the heat discharged from the exhaust duct 300, and can make full use of the waste heat discharged from the box 200; when the temperature is high, the waste heat in the heat exchange device 70 can be discharged together with the heat in the exhaust duct 300, reducing the impact of the heat discharged by the heat exchange device 70 on the inside of the box 200.

[0097] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A novel adjustable temperature control device, characterized in that: include: A compressor having a compression inlet and a compression outlet; at least one heat supply passage, the heat supply passage comprising a first condenser, a first throttling member, and a first pipeline passing through the first condenser and the first throttling member, two ends of the first condenser are respectively connected to the compression outlet and the first throttling member, and the first condenser is used for releasing heat; An evaporator, two ends of which are respectively connected to the compression inlet and the first throttling member, and the evaporator is used for absorbing heat; A first passage, wherein the first passage comprises a heat exchange device, a valve structure and a second pipeline passing through the heat exchange device and the valve structure, the heat exchange device comprises a first end and a second end, the first end is connected to the first throttling member, the second end is connected to the compression inlet, and the heat exchange device can absorb heat; the valve structure is used to control the opening and closing of the first passage to adjust the amount of heat delivered by the heat exchange device to the compressor.

2. The novel adjustable temperature control device according to claim 1, characterized in that: The novel adjustable temperature control device further comprises a first valve, a third pipeline and a second throttle element; the third pipeline passes through the first valve, one end of the third pipeline is connected to the compression outlet, and the other end of the third pipeline is connected to the second end; Two ends of the second throttling member are connected to the evaporator and the first end respectively.

3. The novel adjustable temperature control device as claimed in claim 2, characterized in that: The valve structure includes a second valve, which is arranged between the second end and the compression inlet; and the third pipeline is connected between the second end and the second valve.

4. The novel adjustable temperature control device as claimed in claim 2, characterized in that: The first valve includes a three-way switching valve, one end of which is connected to an end of the third pipeline away from the compression outlet, and the other two ends of the three-way switching valve are connected to the first passage and are located between the second end and the compression inlet.

5. The novel adjustable temperature control device according to any one of claims 2 to 4, characterized in that: The valve structure includes a third valve, which is arranged between the first end and the first throttling member; one end of the second throttling member is connected between the first end and the third valve, and the other end of the second throttling member is connected between the evaporator and the first throttling member.

6. The novel adjustable temperature control device as claimed in claim 2, characterized in that: The first valve is an expansion valve.

7. The novel adjustable temperature control device according to any one of claims 1 to 4, characterized in that: The heat exchange device includes a heat exchanger and at least one second condenser, wherein two ends of the heat exchanger are respectively connected to the first throttling device and the compression inlet; the second condenser is arranged in the heat supply passage, wherein two ends of the second condenser are respectively connected to the first condenser and the first throttling device, and the second condenser is thermally connected to the heat exchanger and is used for heat exchange with the heat exchanger.

8. The novel adjustable temperature control device as claimed in claim 7, characterized in that: The heat exchange area of ​​the second condenser is smaller than the heat exchange area of ​​the heat exchanger.

9. A drying system, characterized in that: It comprises a box body and the novel adjustable temperature control device according to any one of claims 1 to 8, wherein the first condenser is arranged in the box body, and the evaporator and the heat exchange device are arranged outside the box body.

10. The drying system according to claim 9, characterized in that: The drying system comprises an exhaust passage connected to the housing, and the heat exchange device is thermally connected to the exhaust passage and is used for heat exchange with the exhaust passage.

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