A new adjustable temperature control device and drying system

Abstract

The application belongs to the technical field of drying equipment, and discloses a novel adjustable temperature control device and a drying system, wherein the novel adjustable temperature control device comprises a compressor, at least one heat supply passage, 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 connected with a compression outlet and the first throttling member respectively, and the first condenser is used for heat release; an evaporator, two ends of the evaporator are connected with a compression inlet and the first throttling member respectively; a first passage, 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 member, the second end is connected with the compression inlet, and the heat exchange device can absorb heat; and the valve structure is used for controlling the on-off of the first passage. The application can solve the technical problem that an oven is difficult to be raised to a preset temperature in cold weather in the prior art.

Description

TECHNICAL FIELD

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

[0002] The drying equipment transports high-temperature working medium to the condenser through the compressor, and then the condenser transports the heat of the working medium to the drying oven to increase the temperature in the drying oven. When it is cold, the heat absorbed by the evaporator decreases, the heat transported by the evaporator to the compressor decreases, the heat output by the compressor decreases, and the heat transported by the condenser to the drying oven decreases, so that the drying oven is difficult to increase to the preset temperature. SUMMARY

[0003] The purpose of the embodiment of the application is to provide a novel adjustable temperature control device and a drying system to solve the technical problem that the drying oven is difficult to increase to the preset temperature in the prior art.

[0004] To achieve the above-mentioned purpose, the embodiment of the first aspect of the application provides a novel adjustable temperature control device, which comprises: a compressor having a compression inlet and a compression outlet; at least one heat supply path, the heat supply path 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 being connected with the compression outlet and the first throttling member respectively, the first condenser being used for heat release; an evaporator, two ends of the evaporator being connected with the compression inlet and the first throttling member respectively, the evaporator being used for heat absorption; a first path, the first path comprising 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 comprising a first end and a second end, the first end being connected with the first throttling member, the second end being connected with the compression inlet, the heat exchange device being capable of absorbing heat; and the valve structure being used for controlling the on-off of the first path to adjust the heat transported by the heat exchange device to the compressor.

[0005] In some embodiments, the novel adjustable temperature control device further comprises a first valve, a third pipeline, and a second throttling member; the third pipeline passes through the first valve, one end of the third pipeline being connected with the compression outlet, and the other end of the third pipeline being connected to the second end; and two ends of the second throttling member being connected with the evaporator and the first end respectively.

[0006] In some embodiments, the valve structure comprises a second valve, the second valve being arranged between the second end and the compression inlet; and the third pipeline being connected between the second end and the second valve.

[0007] In some embodiments, the first valve comprises a three-way switch valve, one end of the three-way switch valve being connected to the end of the third pipeline away from the compression outlet, and the other two ends of the three-way switch valve being connected to the first path and located between the second end and the compression inlet.

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

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

[0010] In some embodiments, the heat exchange device comprises a heat exchanger and at least one second condenser, two ends of the heat exchanger are connected with the first throttling device and the compression inlet respectively; the second condenser is arranged in the heat supply path, two ends of the second condenser are connected with the first condenser and the first throttling device respectively, and the second condenser is in heat conduction connection with 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] Embodiments of the second aspect of the present application provide a drying system, which comprises a cabinet and the novel adjustable temperature control device of any one of the embodiments of the first aspect, the first condenser is arranged in the cabinet, and the evaporator and the heat exchange device are arranged outside the cabinet.

[0013] In some embodiments, the drying system comprises an air extraction channel connected with the cabinet, and the heat exchange device is in heat conduction connection with the air extraction channel and is used for heat exchange with the air extraction channel.

[0014] The novel adjustable temperature control device and the drying system provided by the present application have the following beneficial effects: when the air temperature is low, the valve structure can be opened to enable the evaporator and the heat exchange device to absorb heat, thereby increasing the heat absorbed by the working medium, delivering more heat to the compressor, increasing the heat output by the compressor, enabling the first condenser to release more heat, and increasing the temperature of the heating space; the technical problem that the working medium heat output by the compressor is reduced when it is cold, resulting in difficulty in increasing the temperature of the drying oven to the preset temperature, can be solved. When the air 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 by the compressor and the heat release amount of the first condenser, and reduce the temperature of the heating space. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 The schematic diagram of the novel adjustable temperature control device provided by some embodiments of the present application Figure 1 ;

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

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

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

[0020] Figure 5 Schematic diagram of novel adjustable temperature control device provided for some embodiments of the present application

[0021] In the drawings, various elements are labeled with reference numerals, wherein:

[0022] 1000, drying system;

[0023] 100, novel 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 accumulator;

[0026] 30, evaporator;

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

[0028] 50, 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 throttling element; 92, first filter;

[0033] 200, box body;

[0034] 300, air suction passage. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application 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 only used to explain the present application and not intended to limit the present application.

[0036] It should be noted that when an element is referred to as being "fixed" 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", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0038] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0039] The embodiments of the first aspect of the present application provide a new adjustable temperature control device for controlling temperature. The present application takes the new adjustable temperature control device used in a drying system as an example for illustration. It should be understood that the new adjustable temperature control device can also be used in other refrigeration or heating air conditioning systems.

[0040] The embodiments of the first aspect of the present application provide a new adjustable temperature control device. Please refer to Figure 1 and Figure 2The new adjustable temperature control device 100 comprises a compressor 10, at least one heat supply path 20, an evaporator 30 and a first path 40; the compressor 10 has a compression inlet 11 and a compression outlet 12; the heat supply path 20 comprises a first condenser 22, a first throttling device 23 and a first pipeline 21 passing through the first condenser 22 and the first throttling device 23, two ends of the first condenser 22 are connected with the compression outlet 12 and the first throttling device 23 respectively, and the first condenser 22 is used for heat release; two ends of the evaporator 30 are connected with the compression inlet 11 and the first throttling device 23 respectively, and the evaporator 30 is used for heat absorption; the first path 40 comprises 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 comprises a first end 711 and a second end 712, the first end 711 is connected with the first throttling device 23, the second end 712 is connected with the compression inlet 11, and the heat exchange device 70 can absorb heat; and the valve structure 42 is used for controlling the on-off of the first path 40, so as to adjust the heat delivered by the heat exchange device 70 to the compressor 10.

[0041] The compressor 10 is used for compressing 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 the working medium is output from the compression outlet 12. When the working medium is liquefied from a gaseous state to a liquid state, heat is released, and when the working medium is evaporated from a liquid state to a gaseous state, heat is absorbed, and the temperature in a certain space can be adjusted by the heat release and heat absorption of the working medium. Optionally, the working medium comprises freon, carbon dioxide and the like, which can be easily converted between the gaseous state and the liquid state.

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

[0043] The inlet end of the first condenser 22 is connected with the compression outlet 12 through the first pipeline 21, 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, release heat to the external environment to cool and liquefy the working medium. The first condenser 22 is arranged in a heating space, can conduct the heat of the working medium to the heating space, and make the heating space warm up. Optionally, a plurality of heat supply paths 20 can be arranged to increase the heat release of the first condenser 22; or one heat supply path 20 can be arranged to make the new adjustable temperature control device 100 more simple.

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

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

[0046] The devices in the first channel 40 are all connected in series, that is, the valve structure 42, the heat exchange device 70 and the second pipeline 41 are connected in series.

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

[0048] The valve structure 42 is used for controlling the on-off of the first channel 40, that is, when the valve structure 42 is opened, the first channel 40 is turned on, the working medium can flow into the compression inlet 11 from the first throttling device 23 through the second pipeline 41, the heat exchange device 70 and the valve structure 42, and the heat exchange device 70 can transmit the absorbed heat to the compressor 10; when the valve structure 42 is closed, the first channel 40 is turned off, the working medium cannot flow into the compression inlet 11 through the valve structure 42, and the working medium cannot flow into the compression inlet 11 through the heat exchange device 70, and the heat exchange device 70 cannot absorb heat and transmit the heat to the compressor 10.

[0049] Please refer to Figure 2 When the air temperature is high, the valve structure 42 is closed, the compressor 10 outputs the gaseous working medium at high temperature and high pressure from the compression outlet 12 after compressing the working medium, 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 and liquefy the working medium, and the heating space is warmed; the working medium after cooling flows into the first throttling device 23, and the liquid working medium flows into the evaporator 30 after reducing the pressure through the first throttling device 23, the evaporator 30 exchanges heat with the external environment, absorbs heat from the external environment to warm and evaporate the working medium into a gaseous state, and the gaseous working medium after warming flows into the compressor 10.

[0050] Please refer to Figure 1When the air temperature is low, the valve structure 42 is opened, the compressor 10 outputs high-temperature and high-pressure gaseous working medium after compressing the working medium, 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 lower the temperature of the working medium and liquefy the working medium, and the heating space is heated; the liquefied working medium flows into the first throttling device 23, the pressure of the working medium is lowered to form 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 exchanges heat with the external environment outside the heating space, absorbs heat from the external environment to heat and evaporate the working medium into gaseous working medium, a part of the gaseous working medium flows into the compressor 10 after being heated, and the other part of the low-temperature and low-pressure liquid working medium flows into the heat exchange device 70 through the second pipeline 41, the heat exchange device 70 exchanges heat with the external environment outside the heating space, absorbs heat from the external environment to heat and evaporate the working medium into gaseous working medium, the other part of the gaseous working medium flows into the compressor 10 after being heated, and the heat of the working medium flowing into the compressor 10 is increased.

[0051] The beneficial effects of the embodiment of the present application are that when the air temperature is low, the valve structure 42 can be opened to enable the evaporator 30 and the heat exchange device 70 to absorb heat, increase the heat absorbed by the working medium, deliver more heat to the compressor 10, increase the heat output by the compressor 10, enable the first condenser 22 to release more heat, and increase the temperature of the heating space; and the technical problem that the heat output by the compressor 10 is reduced when it is cold, which makes it difficult to raise the oven to the preset temperature, can be solved. When the air 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 by 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 further comprises a first valve 60, a third pipeline 50, and a second throttling device 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; and the two ends of the second throttling device 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, when the first valve 60 is opened, the working medium can be output from the compression outlet 12, flow into the heat exchange device 70 through the third pipeline 50 and the second end 712 in sequence, and flow out of the heat exchange device 70 from the first end 711. Optionally, the first valve 60 can be an electromagnetic valve, which facilitates the opening and closing of the first valve 60.

[0054] The inlet end of the second throttling device 91 is connected with the first end 711, and the outlet end of the second throttling device 91 is connected with the inlet end of the evaporator 30, so that the working medium flowing out of the first end 711 can flow into the evaporator 30 through the second throttling device 91. The second throttling device 91 can reduce the pressure of the working medium, and can receive the low-temperature and high-pressure working medium flowing out of the first end 711 and output low-temperature and low-pressure working medium. Optionally, the second throttling device 91 can include an expansion valve, a capillary tube or the like, and can stably reduce the pressure of the working medium.

[0055] Please refer to Figure 4 When the air temperature is high, the valve structure 42 is closed and the first valve 60 is opened, a part of the working medium flows from the compression outlet 12 into the first condenser 22, the first condenser 22 exchanges heat with the heating space, releases heat to the heating space to cool and liquefy the working medium, and the heating space is heated; another part of the working medium flows out from the compression outlet 12 and then flows into the heat exchanging device 70 through the third pipeline 50, the heat exchanging device 70 exchanges heat with the external environment outside the heating space, releases heat to the external environment to cool and liquefy the working medium, and another part of the cooled and liquefied working medium flows from the second throttling device 91 into the evaporator 30, at this time, the heat exchanging device 70 functions as a condenser.

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

[0057] The application has the advantages that when the air 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 medium output by the compressor 10 flows into the heat exchanging device 70, the amount of high-temperature and high-pressure working medium flowing from the compressor 10 into the first condenser 22 is reduced, the heat release amount of the first condenser 22 is reduced, and the temperature of the heating space is reduced. When the air temperature is low, the valve structure 42 can be opened and the first valve 60 can be closed, so that the heat exchanging device 70 can absorb heat, the heat exchanging device 70 can deliver heat to the compressor 10, the heat output by the compressor 10 is increased, the heat release amount of the first condenser 22 is increased, and the temperature of the heating space is reduced.

[0058] In some embodiments, please refer to Figure 3 and Figure 4 The valve structure 42 includes a second valve 421, which is arranged between the second end 712 and the compression inlet 11; and 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 with the second end 712, and the other end is connected with the compression inlet 11. The second valve 421 can control the on-off of the first passage 40. Optionally, the second valve 421 can be an electromagnetic valve, which is convenient for controlling the opening and closing of the second valve 421.

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

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

[0062] The beneficial effects of the embodiment of the application are that the third pipeline 50 is connected to the second end 712 through the second pipeline 41, which can make the pipeline more concentrated, improve the utilization rate of the second pipeline 41, and make the second end 712 of the heat exchange device 70 only need to be connected with the second pipeline 41, without being directly connected with the third pipeline 50, so that the structure of the heat exchange device 70 is simpler.

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

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

[0065] The beneficial effects of the embodiment of the application are that the three-way switch valve is arranged to connect the third pipeline 50 and the second pipeline 41, and one valve can be shared in the third pipeline 50 and the second pipeline 41, so that one valve can control the opening and closing of the third pipeline 50 and the first passage 40, and the structure of the new adjustable temperature control device 100 is simpler.

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

[0067] The two ends of the third valve 422 are connected with the first end 711 and the outlet end of the first throttling device 23 respectively. 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 throttling device 91 is connected to the second pipeline 41 between the first end 711 and the third valve 422, and the second throttling device 91 is connected to the first end 711 through the second pipeline 41; the other end of the second throttling device 91 is connected to the first pipeline 21 between the evaporator 30 inlet and the first throttling device 23, and the second throttling device 91 is connected to the evaporator 30 inlet through the first pipeline 21.

[0069] The third valve 422 can cut off the heat exchange device 70 from the first throttling device 23, so that the working medium flowing from the first throttling device 23 into the heat exchange device 70 can be avoided after the third valve 422 is closed, and the amount of working medium flowing into the first passage 40 is reduced. The second throttling device 91 is connected to the first end 711 through the second pipeline 41, and the second throttling device 91 is connected to the evaporator 30 through the first pipeline 21, so that the pipelines can be more concentrated, and the utilization rate of the first pipeline 21 and the second pipeline 41 can be improved. The inlet end of the evaporator 30 does not need to be directly connected with the second throttling device 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 with the second pipeline 41, and does not need to be directly connected with the second throttling device 91, so that 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 of working medium flowing through the third pipeline 50, and thus can control the flow of 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 medium 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 of working medium flowing from the compression outlet 12 into the heat exchange device 70. Since the total amount of working medium flowing out of the compression outlet 12 is unchanged, the expansion valve can control the working medium flowing from the compression outlet 12 into the first condenser 22, so that the heat release amount of the first condenser 22 can be conveniently controlled.

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

[0074] The heat exchanger 71 is a 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 in series, and 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 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 functions 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 functions as a condenser. Optionally, the heat exchanger 71 can use a condenser, which can improve the heat release effect. Optionally, the heat exchange device 70 can be a three-in and three-out condenser, one inlet is connected with one outlet, the heat exchanger 71 and the second condenser 72 are more concentrated, and the heat exchange efficiency is high.

[0075] The second condenser 72, the first condenser 22, the first throttling device 23 and the first pipeline 21 are in series, the inlet end of the second condenser 72 is connected with the outlet end of the first condenser 22, the outlet end of the second condenser 72 is connected with the inlet end of the first throttling device 23, and the working medium in the first condenser 22 flows into the first throttling device 23 from the second condenser 72. 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, and 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 of the second condenser 72 and the heat exchanger 71.

[0077] The beneficial effects of the embodiments of the present application are that when the air temperature is high, the second condenser 72 can release heat to the environment outside the heating space, reduce the heat of the working medium, 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 air 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 less 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 less than the heat exchange area of the heat exchanger 71, so that the second condenser 72 exchanges heat with only 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, referring to Figure 3 and Figure 4 The new adjustable temperature control device 100 further comprises a first filter 92 connected in series with the second throttling element 91, the outlet end of the first filter 92 is connected to the inlet end of the second throttling element 91, the inlet end of the first filter 92 is connected to the second pipeline 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 pipeline. The working medium of the heat exchange device 70 can flow into the second throttling element 91 through the first filter 92, the first filter 92 can filter impurities in the working medium, preventing the second throttling element 91 from being blocked.

[0082] In some embodiments, referring to Figure 3 and Figure 4 The heat supply passage 20 further comprises a second filter 24 connected in series with the first condenser 22, the second condenser 72, the first throttling element 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 element 23. The working medium in the first condenser 22 can flow into the first throttling element 23 through the second filter 24, and the second filter 24 can filter impurities in the working medium, preventing the first throttling element 23 from being blocked.

[0083] In some embodiments, referring to Figure 3 and Figure 4 The heat supply passage 20 further comprises a liquid reservoir 25 connected in series with the first condenser 22, the second condenser 72, the second filter 24, the first throttling element 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 working medium and adjust the circulation amount of the working medium. The liquid reservoir 25 can filter moisture in the working medium, preventing the first throttling element 23 from being blocked.

[0084] In some embodiments, referring to Figure 3 and Figure 4The new adjustable temperature control device 100 further comprises a separator 80 connected between the compression inlet 11 and the compression outlet 12, which can separate water and impurities in the working medium to ensure stable operation of the new adjustable temperature control device 100.

[0085] In some embodiments, referring to Figure 3 and Figure 4 The new 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 second condenser 72, a first throttling element 23 and a first pipe 21 passing through the first condenser 22, the second condenser 72 and the first throttling element 23. The first condenser 22 is connected to the compression outlet 12 and the second condenser 72 respectively. The second condenser 72 is connected to the first condenser 22 and the first throttling element 23 respectively. The first condenser 22 and the second condenser 72 are used for heat release. The evaporator 30 is connected to the compression inlet 11 and the first throttling element 23 respectively. The evaporator 30 is used for heat absorption.

[0086] The first passage 40 comprises a heat exchanger 71, a valve structure 42 and a second pipe 41 passing through the heat exchanger 71 and the valve structure 42. The heat exchanger 71 comprises a first end 711 and a second end 712. The first end 711 is connected to the first throttling element 23 through the second pipe 41. The second end 712 is connected to the compression inlet 11. The heat exchanger 71 can absorb heat. The heat exchanger 71 is in heat conduction connection with the second condenser 72 and is used for heat exchange with the heat exchanger 71. The valve structure 42 is used for controlling the on-off of the first passage 40 to adjust the heat delivered by the heat exchanger 71 to the compressor 10. The valve structure 42 comprises 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 element 23.

[0087] The new adjustable temperature control device 100 further comprises a first valve 60, a third pipe 50 and a second throttling element 91. The third pipe 50 passes through the first valve 60. One end of the third pipe 50 is connected to the compression outlet 12. The other end of the third pipe 50 is connected to the second end 712. The two ends of the second throttling element 91 are connected to the evaporator 30 and the first end 711 respectively. One end of the second throttling element 91 is connected between the first end 711 and the third valve 422. The other end of the second throttling element 91 is connected between the evaporator 30 and the first throttling element 23.

[0088] In some embodiments, referring to Figure 4When the air temperature is high, the second valve 421 and the third valve 422 are closed and the first valve 60 is opened, the compressor 10 outputs high-temperature and high-pressure gaseous working medium after compressing the working medium, part of 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 and liquefy the working medium, and the heating space is heated; the working medium cooled by the first condenser 22 flows into the second condenser 72, the second condenser 72 can exchange heat with the external environment outside the heating space, releases heat to the external environment to further cool the working medium. The cooled liquid working medium flows into the first throttling device 23, the low-temperature and low-pressure liquid working medium is formed after the pressure of the liquid working medium is reduced by the first throttling device 23, and the low-temperature and low-pressure liquid working medium flows into the evaporator 30. Another part of the gaseous working medium flows into the heat exchange device 70 through the third pipeline 50 after flowing out of the compression outlet 12, the heat exchange device 70 exchanges heat with the external environment outside the heating space, releases heat to the external environment to cool and liquefy the working medium, and another part of the cooled liquid working medium flows into the evaporator 30 from the second throttling device 91. The evaporator 30 exchanges heat with the external environment, absorbs heat from the external environment to heat and evaporate the working medium, and the heated working medium flows into the compressor 10.

[0089] Please refer to Figure 3 When the air temperature is low, the second valve 421 and the third valve 422 are opened and the first valve 60 is closed, the compressor 10 outputs high-temperature and high-pressure gaseous working medium after compressing the working medium, 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 and liquefy the working medium, and the heating space is heated; the working medium cooled by the first condenser 22 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 to further cool the working medium; the cooled liquid working medium flows into the first throttling device 23 and the pressure is reduced to form low-temperature and low-pressure liquid working medium. Part of the low-temperature and low-pressure liquid working medium flows into the evaporator 30, the evaporator 30 exchanges heat with the external environment outside the heating space, absorbs heat from the external environment to heat and evaporate the working medium into gaseous state, and part of the gaseous working medium after heating flows into the compressor 10; another part of the low-temperature and low-pressure liquid working medium flows into the heat exchange device 70 through the second pipeline 41, the heat exchange device 70 exchanges heat 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 and evaporate the working medium into gaseous state, and another part of the gaseous working medium after heating flows into the compressor 10 to increase the heat of the working medium flowing into the compressor 10.

[0090] The embodiment of the second aspect of the application provides a drying system, please refer to Figure 5The drying system 1000 comprises a box 200 and the novel adjustable temperature control device 100 of any one of the first aspect embodiments, the first condenser 22 is arranged in the box 200, the evaporator 30 and the heat exchange device 70 are arranged outside the box 200.

[0091] The box 200 is a heating space, the first condenser 22 is arranged in the box 200 and can release heat to 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 exchange device 70 is arranged outside the box 200 and can absorb heat outside the box 200 or release heat to the outside of the box 200. Optionally, the drying system 1000 is arranged in a workshop, and the evaporator 30 is arranged in the workshop, so that the evaporator 30 can cool the workshop when the air temperature is high.

[0092] The embodiment of the present application has the beneficial effects that the embodiment of the present application comprises the box 200 and the novel adjustable temperature control device 100 of any one of the first aspect embodiments, which can open the valve structure 42 to increase the temperature in the box 200 when the air temperature is low, and has all the advantages of the novel adjustable temperature control device 100 described above.

[0093] In some embodiments, please refer to Figure 5 The drying system 1000 comprises an air extraction channel 300 connected with the box 200, and the heat exchange device 70 is in heat conduction connection with the air extraction channel 300 and is used for heat exchange with the air extraction channel 300.

[0094] The air extraction channel 300 is used for exhausting waste gas in the box 200. Optionally, the outlet of the air extraction channel 300 is located outside the workshop, and the waste gas can be exhausted to the outside of the workshop.

[0095] The heat exchange device 70 is in heat conduction connection with the air extraction channel 300, when the valve structure 42 is opened, the heat exchange device 70 can absorb 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, which improves the heat exchange efficiency of the heat exchange device 70 and the air extraction channel 300.

[0096] The embodiment of the present application has the beneficial effects that the heat exchange device 70 is arranged in the air extraction channel 300, when the air temperature is low, the heat exchange device 70 can absorb heat exhausted from the air extraction channel 300, and the waste heat exhausted from the box 200 can be fully utilized; when the air temperature is high, the waste heat in the heat exchange device 70 can be exhausted together with the heat in the air extraction channel 300, which reduces the influence of the heat exhausted from the heat exchange device 70 on the box 200.

[0097] The above only describes preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle 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 has a compression inlet and a compression outlet; At least one heating passage, the heating passage including a first condenser, a first throttling device and a first pipeline passing through the first condenser and the first throttling device, the two ends of the first condenser being connected to the compression outlet and the first throttling device respectively, the first condenser being used to release heat; An evaporator, the two ends of which are respectively connected to the compression inlet and the first throttling element, the evaporator being used for heat absorption; A 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 device, and the second end is connected to the compression inlet. The heat exchange device is capable of absorbing heat. The valve structure is used to control the opening and closing of the first passage to regulate the amount of heat delivered by the heat exchange device to the compressor. The novel adjustable temperature control device further includes a first valve, a third pipeline, and a second throttling 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; The two ends of the second throttling element are connected to the evaporator and the first end, respectively.

2. The novel adjustable temperature control device as described in claim 1, characterized in that, The valve structure includes a second valve, which is located between the second end and the compression inlet; the third pipeline is connected between the second end and the second valve.

3. The novel adjustable temperature control device as described in claim 1, characterized in that, The first valve includes a three-way switching valve, one end of which is connected to the end of the third pipeline away from the compression outlet, and the other two ends of which are connected to the first passage and located between the second end and the compression inlet.

4. The novel adjustable temperature control device as described in any one of claims 1-3, characterized in that, The valve structure includes a third valve, which is located between the first end and the first throttling element; one end of the second throttling element is connected between the first end and the third valve, and the other end of the second throttling element is connected between the evaporator and the first throttling element.

5. The novel adjustable temperature control device as described in claim 1, characterized in that, The first valve is an expansion valve.

6. The novel adjustable temperature control device as described in any one of claims 1-3, characterized in that, The heat exchange device includes a heat exchanger and at least one second condenser. The two ends of the heat exchanger are respectively connected to the first throttling element and the compression inlet. The second condenser is disposed in the heating passage. The two ends of the second condenser are respectively connected to the first condenser and the first throttling element. The second condenser is thermally connected to the heat exchanger and is used for heat exchange with the heat exchanger.

7. The novel adjustable temperature control device as described in claim 6, characterized in that, The heat exchange area of ​​the second condenser is smaller than that of the heat exchanger.

8. A drying system, characterized in that, The invention includes a housing and a novel adjustable temperature control device according to any one of claims 1-7, wherein the first condenser is disposed inside the housing, and the evaporator and the heat exchange device are disposed outside the housing.

9. The drying system as described in claim 8, characterized in that, The drying system includes an exhaust duct connected to the housing, and the heat exchange device is thermally connected to the exhaust duct and used for heat exchange with the exhaust duct.

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