Heat pump constant temperature dehumidification device

Abstract

The invention discloses a heat pump constant temperature dehumidification device, comprising a heat pump system and a base frame assembly, wherein the heat pump system comprises at least three unit systems, wherein the unit system comprises a compressor, wherein the compressor has a refrigerant inlet and a refrigerant outlet, wherein a first stop valve, a first condenser, a throttling component and an evaporator are sequentially connected between the refrigerant outlet and the refrigerant inlet; the refrigerant outlet is connected to the first stop valve through a first pipe, wherein a first bypass port is provided on the first pipe, wherein the first condenser is connected to the throttling component through a second pipe, wherein a second bypass port is provided on the second pipe, wherein a second stop valve and a second condenser are sequentially connected between the first bypass port and the second bypass port. By setting at least three unit systems, when in use, one unit system can be set in a cooling and dehumidification mode, and two unit systems can be set in a heating and dehumidification mode, wherein the dehumidification speed of the heat pump system is faster, but the cooling capacity is smaller, and the air cooling speed is slow, and it is easy to maintain constant temperature dehumidification without frequent switching of working modes.

Description

Technical Field

[0001] The invention relates to the technical field of dehumidification devices, and in particular to a heat pump constant temperature dehumidification device. Background Art

[0002] The heat pump dehumidifiers currently on the market usually have a heating dehumidification mode and a cooling dehumidification mode, and the working mode is switched by a four-way valve. For example, the water source heat pump unit with condensation heat recovery disclosed in patent CN207230990U operates in the heating dehumidification mode with the evaporator and the condenser located indoors; in the cooling dehumidification mode with the evaporator and the condenser located outdoors, the cooling capacity is large and the cooling speed is fast. If constant temperature dehumidification needs to be maintained, the working mode needs to be switched frequently. The four-way valve has a complex structure and is easily damaged by frequent switching. The heat pump system is prone to failure and unstable operation. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a heat pump constant temperature dehumidification device.

[0004] According to an embodiment of the present invention, a heat pump constant temperature dehumidification device includes a heat pump system and a base frame assembly, wherein the heat pump system includes at least three unit systems, wherein the unit system includes a compressor, a first condenser, a second condenser, a first stop valve, a second stop valve, a throttling component and an evaporator, wherein the compressor has a refrigerant inlet and a refrigerant outlet, wherein the first stop valve, the first condenser, the throttling component and the evaporator are connected in sequence between the refrigerant outlet and the refrigerant inlet; the refrigerant outlet is connected to the first stop valve via a first pipe, wherein a first bypass port is provided on the first pipe, and a first condenser and the throttling component are connected via a first bypass port. A second pipe is connected, a second bypass port is provided on the second pipe, the second stop valve and the second condenser are connected in sequence between the first bypass port and the second bypass port; an air flow channel is provided on the base frame assembly, the air flow channel has an air flow inlet and an air flow outlet, the evaporators of the three unit systems are collectively referred to as evaporation components, the first condensers of the three unit systems are collectively referred to as condensation components, the evaporation components and the condensation components are both arranged in the air flow channel, the evaporation component is arranged between the condensation component and the air flow inlet, and the second condensers of the three unit systems are all arranged on the outside of the air flow channel.

[0005] The heat pump constant temperature dehumidification device according to the embodiment of the present invention has at least the following technical effects: when in use, the air flow inlet and the air flow outlet can be connected to the place where dehumidification is required, and the second condenser is installed outdoors; when the first stop valve is opened and the second stop valve is closed, the unit system is in the heating dehumidification mode; when the first stop valve is closed and the second stop valve is opened, the unit system is in the cooling dehumidification mode; by setting at least three unit systems, when in use, a certain number of unit systems can be in the cooling dehumidification mode and the other unit systems can be in the heating dehumidification mode according to the temperature and humidity state of the air. For example, when the humidity of the air is much greater than the expected value and the temperature is only slightly greater than the expected value, one unit system can be set in the cooling dehumidification mode and two unit systems can be set in the heating dehumidification mode. At this time, the dehumidification speed of the heat pump system is faster, but the cooling capacity is small and the air cooling speed is slow. It is easy to maintain constant temperature dehumidification without frequent switching of working modes. In addition, the stop valve has a simple structure and is not easily damaged even if it is frequently opened and closed. The heat pump system is not prone to failure and operates stably.

[0006] According to some embodiments of the present invention, the base assembly includes a first shell, the airflow outlet and the airflow inlet are both arranged on the first shell, the first shell is provided with a first chamber, a second chamber and a third chamber from right to left in sequence, a first partition is provided between the first chamber and the second chamber, a first fan is provided on the first partition, the first chamber and the second chamber are connected through the first fan, and a second partition is provided between the second chamber and the third chamber; the airflow inlet is provided on the right side wall of the first chamber, the airflow outlet is provided on the cavity wall of the second chamber, the evaporation component and the condensation component are both provided in the first chamber, and the compressor is provided in the third chamber. The entire cross-section of the first shell is a flow surface, and the evaporation component and the condensation component can be made into a shape covering the entire flow surface, making full use of the space, the flow area of ​​the evaporation component and the condensation component is large, and the heat exchange effect is good; by providing the third chamber, the air flows from the airflow inlet from right to left to the second chamber, and then is discharged from the airflow outlet without passing through the third chamber, and the compressor is provided in the third chamber, and the compressor does not hinder the flow of air.

[0007] According to some embodiments of the present invention, the first stop valve and the second stop valve are both solenoid valves, and the first stop valve and the second stop valve are both arranged in the third chamber. The first stop valve and the second stop valve are solenoid valves, which are convenient for automatic control, and the first stop valve, the second stop valve and the compressor are arranged in the third chamber, which is convenient for circuit connection.

[0008] According to some embodiments of the present invention, the unit system further includes an oil separator, a liquid reservoir and a gas-liquid separator, the oil separator is connected in series between the refrigerant outlet and the first bypass port, the liquid reservoir is connected in series between the second bypass port and the throttling component, and the gas-liquid separator is connected in series between the evaporator and the refrigerant inlet; the first stop valve, the second stop valve, the oil separator, the liquid reservoir and the gas-liquid separator are all arranged in the third chamber. The oil separator, the liquid reservoir and the gas-liquid separator can optimize the unit system and make the operation of the unit system more stable. The oil separator, the liquid reservoir and the gas-liquid separator are all arranged in the third chamber and will not hinder the air flow in the air flow channel.

[0009] According to some embodiments of the present invention, the first stop valve is connected to the first condenser through a third tube, the tube section of the second tube between the first condenser and the liquid reservoir is called the second first tube section, the tube section between the liquid reservoir and the throttling component is called the second second tube section, and the evaporator and the gas-liquid separator are connected through a fourth tube; the third tube, the second first tube section, the second second tube section and the fourth tube all extend from the third chamber through the first partition and the second partition to the first chamber; the third tube, the second first tube section, the second second tube section and the fourth tube are collectively referred to as a connecting tube group, and the connecting tube group is close to the rear side wall of the first shell, and the connecting tube groups of the three unit systems are arranged in sequence from top to bottom. By arranging the connecting tube group close to the rear side wall of the first shell, the connecting tube group has less obstruction to the air flow in the airflow channel.

[0010] According to some embodiments of the present invention, the third chamber is provided with a left area and a right area, the left area is provided between the right area and the left side wall of the third chamber, the compressors of the three unit systems are arranged in the left area from front to back, the oil separators, the liquid reservoirs and the gas-liquid separators of the three unit systems are all arranged in the right area; an openable inspection cover is provided on the left side wall of the third chamber. By arranging the compressor in the left area, the compressor is close to the left side wall of the first shell, and the compressor can be repaired and maintained by opening the inspection cover, which is convenient for repairing and maintaining the compressor.

[0011] According to some embodiments of the present invention, the second condenser is disposed outside the first shell; the first bypass port and the second bypass port are both disposed in the third chamber, the first bypass port and the second condenser are connected via a fifth pipe, the second condenser and the second bypass port are connected via a sixth pipe, and the fifth pipe and the sixth pipe both penetrate the cavity wall of the third chamber. In this way, the pipes connected to the second condenser in the unit system are all led out from the third chamber, which is convenient for installation and for on-site pipe layout.

[0012] According to some embodiments of the present invention, the fifth pipe has a fifth-first pipe section, the sixth pipe has a sixth-first pipe section, the fifth-first pipe section and the sixth-first pipe section are both arranged in the third chamber, the fifth-first pipe section is provided with a third stop valve, and the sixth-first pipe section is provided with a fourth stop valve. During production and manufacturing, in order to facilitate storage and transportation, the second condenser part and the first shell part are usually manufactured separately, and then transported to the site of use for docking and installation; since the third stop valve and the fourth stop valve are provided, during production and manufacturing, the third stop valve and the fourth stop valve can be closed, and then the refrigerant is charged to debug the part of the unit system arranged in the first shell.

[0013] According to some embodiments of the present invention, a support column is provided in the third chamber, the fifth tube has a transversely arranged fifth tube segment, the sixth tube has a sixth tube segment, the fifth tube segment and the sixth tube segment are parallel, the fifth tube segment and the sixth tube segment are respectively arranged on the support column, the fifth tube segment and the sixth tube segment are collectively referred to as a tube segment assembly, and the tube segment assemblies of the three unit systems are arranged sequentially from top to bottom. The support column can support the fifth tube segment and the sixth tube segment, making the pipeline structure more stable, and only one support column is needed to support the fifth tube segment and the sixth tube segment of the three unit systems, which is compact and space-saving.

[0014] According to some embodiments of the present invention, the throttling component is an expansion valve, and the throttling component is arranged in the first chamber. The temperature sensing package of the expansion valve is generally arranged on the outlet pipe of the evaporator. By arranging the expansion valve in the first chamber, it is easy to install the temperature sensing package.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1Schematic diagram of the three-dimensional structure of the indoor unit of the heat pump constant temperature dehumidification device according to an embodiment of the present invention;

[0018] Figure 2 is a perspective schematic diagram of an indoor unit portion of a heat pump constant temperature dehumidification device according to an embodiment of the present invention;

[0019] Figure 3 It is a schematic diagram of a unit system of a heat pump constant temperature dehumidification device according to an embodiment of the present invention.

[0020] In the attached figure:

[0021] 100-first shell; 101-air flow outlet; 102-air flow inlet; 111-first fan; 120-inspection cover; 121-mounting through hole; 180-second partition; 190-support column; 200-compressor; 210-oil separator; 221-first stop valve; 222-second stop valve; 231-first condenser; 232-second condenser; 241-third stop valve; 242-fourth stop valve; 250-liquid reservoir; 260-throttling component; 270-evaporator; 280-gas-liquid separator; 301-first bypass port; 302-second bypass port; 310-first pipe; 321-second first pipe section; 322-second second pipe section; 330-third pipe; 340-fourth pipe; 351-fifth first pipe section; 361-sixth first pipe section. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that the directions or positional relationships indicated, such as up, down, front, back, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the meaning of "several" is one or more, the meaning of "many" is more than two, greater than, less than, exceed, etc. are understood to exclude the number itself, and above, below, within, etc. are understood to include the number itself. If there is a description of the first and the second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] Reference below Figures 1 to 3 A heat pump constant temperature dehumidification device according to an embodiment of the present invention is described.

[0026] According to an embodiment of the present invention, a heat pump constant temperature dehumidification device includes a heat pump system and a base frame assembly. The heat pump system includes at least three unit systems, and the unit system includes a compressor 200, a first condenser 231, a second condenser 232, a first stop valve 221, a second stop valve 222, a throttling component 260 and an evaporator 270. The compressor 200 has a refrigerant inlet and a refrigerant outlet. The refrigerant outlet and the refrigerant inlet are connected in sequence with the first stop valve 221, the first condenser 231, the throttling component 260 and the evaporator 270; the refrigerant outlet is connected to the first stop valve 221 through a first pipe 310, and the first pipe 310 is provided with a first bypass port 301. The first condenser The device 231 is connected to the throttling component 260 through a second tube, and a second bypass port 302 is provided on the second tube. The second stop valve 222 and the second condenser 232 are connected between the first bypass port 301 and the second bypass port 302 in sequence; an air flow channel is provided on the base frame assembly, and the air flow channel has an air flow inlet 102 and an air flow outlet 101. The evaporators 270 of the three unit systems are collectively referred to as evaporation components, and the first condensers 231 of the three unit systems are collectively referred to as condensation components. The evaporation components and the condensation components are both arranged in the air flow channel, and the evaporation component is arranged between the condensation component and the air flow inlet 102. The second condensers 232 of the three unit systems are all arranged on the outside of the air flow channel.

[0027] For example, Figure 3 As shown, the unit system may also include an oil separator 210, a liquid reservoir 250, a drying filter and a gas-liquid separator 280. After the refrigerant is discharged from the refrigerant outlet of the compressor 200, it flows through the oil separator 210 and arrives at the first bypass port 301. When the first stop valve 221 is opened and the second stop valve 222 is closed, the refrigerant at the first bypass port 301 flows through the first condenser 231 and arrives at the second bypass port 302. When the first stop valve 221 is closed and the second stop valve 222 is opened, the refrigerant at the first bypass port 301 flows through the second condenser 232 and arrives at the second bypass port 302. The refrigerant at the second bypass port 302 passes through the liquid reservoir 250, the drying filter, the throttling component 260, the evaporator 270, and the gas-liquid separator 280 in sequence and then returns to the refrigerant inlet; the base frame assembly may include an indoor unit part and an outdoor unit part, and the indoor unit part is as shown in FIG. Figure 1 and Figure 2As shown, the indoor unit part includes a first shell 100, a compressor 200, a first condenser 231, the compressor 200, an oil separator 210, a first stop valve 221, a second stop valve 222, a first condenser 231, a liquid storage tank 250, a drying filter, a throttling component 260, an evaporator 270, and a gas-liquid separator 280 can all be arranged in the first shell 100, and a first chamber and a second chamber are arranged in the first shell 100. The airflow inlet 102 is arranged on the cavity wall of the first chamber, and the airflow outlet 101 is arranged on the cavity wall of the second chamber. The airflow channel is a channel for air to flow in from the airflow inlet 102, flow through the first chamber, the first fan 111, and the second chamber in sequence, and then be discharged from the airflow outlet 101. The three evaporators 270 are all arranged vertically. The three evaporators 270 can be arranged from top to bottom and assembled into an evaporation component, covering the flow area of ​​the air flow channel, and the same is true for the condensation component; four or more unit systems can also be arranged, and all evaporators 270 form an evaporation component, and all first condensers 231 are combined into a condensation component; the outdoor unit part can be a mounting frame to install all the second condensers 232, or it can be multiple mounting frames, each mounting frame is equipped with a second condenser 232, which can enable the second condenser 232 to dissipate heat to the external environment. This is a conventional technical means in the field, and its structure is not described in detail here; the first stop valve 221 and the second stop valve 222 can be manual valves or solenoid valves; the first fan 111 can be an axial flow fan or a centrifugal fan.

[0028] When in use, the air flow inlet 102 and the air flow outlet 101 can be connected to the place where dehumidification is required, and the second condenser 232 can be installed outdoors. When the air flows through the air flow channel, the temperature at the condensation component drops, and the water vapor in the air condenses, thereby achieving the dehumidification effect; when the first stop valve 221 is opened and the second stop valve 222 is closed, the heat absorbed by the evaporator 270 in the air flow channel is released back to the air flow channel through the first condenser 231, and combined with the heat generated when the compressor 200 is running, the unit system is in a heating and dehumidification mode; when the first stop valve 221 is closed and the second stop valve 222 is opened, the heat absorbed by the evaporator 270 in the air flow channel is released to the outside through the second condenser 232 The unit system is in the cooling and dehumidifying mode; by setting at least three unit systems, a certain number of unit systems can be set in the cooling and dehumidifying mode and the other unit systems can be set in the heating and dehumidifying mode according to the temperature and humidity state of the air. For example, when the humidity of the air is much greater than the expected value and the temperature is only slightly greater than the expected value, one unit system can be set in the cooling and dehumidifying mode and two unit systems can be set in the heating and dehumidifying mode. At this time, the dehumidification speed of the heat pump system is faster, but the cooling capacity is small and the air cooling speed is slow. It is easy to maintain constant temperature dehumidification without frequent switching of working modes. In addition, the stop valve has a simple structure and is not easily damaged even if it is frequently opened and closed. The heat pump system is not prone to failure and runs stably. When the humidity of the air is much greater than the expected value and rapid dehumidification is required, all unit systems can be started. When the humidity of the air is only slightly greater than the expected value and slow dehumidification is required, one unit system can be started; when the temperature of the air is much greater than the expected value and rapid cooling is required, all unit systems can be set in the cooling and dehumidifying mode. When the temperature of the air is much less than the expected value and rapid heating is required, all unit systems can be set in the heating and dehumidifying mode.

[0029] The energy efficiency ratio of the refrigeration system is generally above 2.5. The heat pump system consists of three unit systems. When one unit system is in cooling and dehumidification mode and two unit systems are in heating and dehumidification mode, one unit system absorbs 2.5 units of heat and the two unit systems release 1 unit of heat respectively, which is equivalent to the entire unit system absorbing 0.5 units of heat, which is relatively close to zero, making the heat pump system in constant temperature dehumidification mode.

[0030] In some embodiments of the present invention, the base assembly includes a first shell 100, an airflow outlet 101 and an airflow inlet 102 are both arranged on the first shell 100, a first chamber, a second chamber and a third chamber are sequentially arranged from right to left in the first shell 100, a first partition is arranged between the first chamber and the second chamber, a first fan 111 is arranged on the first partition, the first chamber and the second chamber are connected through the first fan 111, and a second partition 180 is arranged between the second chamber and the third chamber; the airflow inlet 102 is arranged on the right side wall of the first chamber, the airflow outlet 101 is arranged on the cavity wall of the second chamber, the evaporation component and the condensation component are both arranged in the first chamber, and the compressor 200 is arranged in the third chamber. Figure 2 The first shell 100 is in the shape of a rectangular parallelepiped. The evaporation component and the condensation component are parallel to the right side wall of the first chamber. The evaporation component is set on the airflow inlet 102 from the inner cover of the first chamber. The condensation component is stacked on the left side of the evaporation component from left to right. The airflow outlet 101 is set at the top of the second chamber. The entire cross-section of the first shell 100 is a flow surface. The evaporation component and the condensation component can be made into a shape that covers the entire flow surface, making full use of the space. The flow area of ​​the evaporation component and the condensation component is large, and the heat exchange effect is good; by setting the third chamber, the air flows from the airflow inlet 102 from right to left to the second chamber, and then is discharged from the airflow outlet 101 without passing through the third chamber. The compressor 200 is set in the third chamber. The compressor 200 will not hinder the flow of air, and can prevent the air with a faster flow rate from eroding the compressor 200.

[0031] In some embodiments of the present invention, the first stop valve 221 and the second stop valve 222 are both solenoid valves, and the first stop valve 221 and the second stop valve 222 are both arranged in the third chamber. The first stop valve 221 and the second stop valve 222 are solenoid valves, which are convenient for automatic control. The solenoid valves need to be connected to the circuit, and the compressor 200 also needs to be connected to the circuit. The first stop valve 221, the second stop valve 222 and the compressor 200 are arranged in the third chamber, which is convenient for circuit connection.

[0032] In some embodiments of the present invention, the unit system further includes an oil separator 210, a liquid reservoir 250 and a gas-liquid separator 280, the oil separator 210 is connected in series between the refrigerant outlet and the first bypass port 301, the liquid reservoir 250 is connected in series between the second bypass port 302 and the throttling component 260, and the gas-liquid separator 280 is connected in series between the evaporator 270 and the refrigerant inlet; the first stop valve 221, the second stop valve 222, the oil separator 210, the liquid reservoir 250 and the gas-liquid separator 280 are all arranged in the third chamber. The oil separator 210, the liquid reservoir 250 and the gas-liquid separator 280 can optimize the unit system and make the operation of the unit system more stable. The oil separator 210, the liquid reservoir 250 and the gas-liquid separator 280 are all arranged in the third chamber and will not hinder the air flow in the air flow channel.

[0033] In some embodiments of the present invention, the first stop valve 221 is connected to the first condenser 231 through the third tube 330, the tube section between the first condenser 231 and the liquid reservoir 250 in the second tube is called the second first tube section 321, the tube section between the liquid reservoir 250 and the throttling component 260 is called the second second tube section 322, and the evaporator 270 and the gas-liquid separator 280 are connected through the fourth tube 340; the third tube 330, the second first tube section 321, the second second tube section 322 and the fourth tube 340 all extend from the third chamber through the first partition and the second partition 180 to the first chamber; the third tube 330, the second first tube section 321, the second second tube section 322 and the fourth tube 340 are collectively referred to as a connecting tube group, and the connecting tube group is close to the rear side wall of the first shell 100, and the connecting tube groups of the three unit systems are arranged sequentially from top to bottom. By arranging the connecting tube group close to the rear side wall of the first shell 100, the connecting tube group has less obstruction to the air flow in the airflow channel; refer to Figure 2 The third tube 330, the second first tube section 321, the second second tube section 322 and the fourth tube 340 of each connecting tube group are arranged side by side in the vertical direction.

[0034] In some embodiments of the present invention, a left area and a right area are provided in the third chamber, the left area is provided between the right area and the left side wall of the third chamber, the compressors 200 of the three unit systems are arranged in the left area from front to back, the oil separators 210, the liquid reservoirs 250 and the gas-liquid separators 280 of the three unit systems are all arranged in the right area; an openable and closable inspection cover 120 is provided on the left side wall of the third chamber. The compressor 200, the oil separator 210, the liquid reservoir 250 and the gas-liquid separator 280 are of large mass and volume and need to be placed at the bottom of the first shell 100, while the first stop valve 221, the second stop valve 222, the third stop valve 241, the fourth stop valve 242, the expansion valve and the drying filter are of small mass and volume and can be directly arranged on the pipeline; by arranging the compressor 200 in the left area, the compressor 200 is close to the left side wall of the first shell 100, and the inspection cover 120 can be detachably installed on the first shell 100 by bolt connection, clamping or other methods, and the inspection cover 120 can be opened. The compressor 200 is easy to repair and maintain; the oil separator 210, the liquid reservoir 250 and the gas-liquid separator 280 are relatively difficult to damage components, and can be arranged in the right area, with a compact and reasonable structure; the oil separator 210, the liquid reservoir 250 and the gas-liquid separator 280 of each unit system are arranged on the side of the compressor 200 connected thereto, and the compressor 200, the oil separator 210, the liquid reservoir 250 and the gas-liquid separator 280 of each unit system are collectively referred to as the first component, and the first components of the three unit systems are arranged in the third chamber from front to back.

[0035] In some embodiments of the present invention, the second condenser 232 is disposed outside the first housing 100; the first bypass port 301 and the second bypass port 302 are both disposed in the third chamber, the first bypass port 301 and the second condenser 232 are connected via a fifth pipe, the second condenser 232 and the second bypass port 302 are connected via a sixth pipe, and both the fifth pipe and the sixth pipe penetrate the cavity wall of the third chamber. In this way, the pipes connected to the second condenser 232 in the unit system are all led out from the third chamber, which is convenient for installation and for the pipe arrangement at the use site.

[0036] In some embodiments of the present invention, the fifth pipe has a fifth-first pipe section 351, and the sixth pipe has a sixth-first pipe section 361. The fifth-first pipe section 351 and the sixth-first pipe section 361 are both arranged in the third chamber. The third stop valve 241 is arranged on the fifth-first pipe section 351, and the fourth stop valve 242 is arranged on the sixth-first pipe section 361. During production and manufacturing, in order to facilitate storage and transportation, the part of the second condenser 232 and the part of the first shell 100 are usually manufactured separately, and then transported to the use site and then docked and installed. The fifth pipe is made by welding and docking two separate pipe sections, wherein the fifth-first pipe section 351 is arranged in the first shell 100; due to the third stop valve 241 and the fourth stop valve 242, during production and manufacturing, the third stop valve 241 and the fourth stop valve 242 can be closed, and then the refrigerant is charged to debug the part of the unit system arranged in the first shell 100; the third stop valve 241 and the fourth stop valve 242 can both be manual valves.

[0037] In some embodiments of the present invention, a support column 190 is provided in the third chamber, the fifth tube has a fifth first tube segment 351 arranged horizontally, the sixth tube has a sixth first tube segment 361, the fifth first tube segment 351 and the sixth first tube segment 361 are parallel, the fifth first tube segment 351 and the sixth first tube segment 361 are respectively arranged on the support column 190, the fifth first tube segment 351 and the sixth first tube segment 361 are collectively referred to as a tube segment assembly, and the tube segment assemblies of the three unit systems are arranged sequentially from top to bottom. Figure 2The right end of the fifth pipe segment 351 is connected to the first bypass port 301, and the left end of the fifth pipe segment 351 faces the left side wall of the first shell 100. The left side wall of the first shell 100 is provided with a mounting through hole 121 corresponding to the fifth pipe segment 351, so as to set a pipeline connected to the second condenser 232. The second stop valve 222 and the third stop valve 241 are arranged in series on the fifth pipe segment 351; the right end of the sixth pipe segment 361 is connected to the second bypass port 302, and the left end of the sixth pipe segment 361 faces the first shell 100. The left side wall of the first shell 100 is also provided with a mounting through hole 121 at the left side wall corresponding to the sixth pipe section 361, so as to set a pipeline connected to the second condenser 232, and the sixth pipe section 361 is connected in series with the fourth stop valve 242; the support column 190 is fixedly connected to the first shell 100, and the support column 190 is vertically arranged between the second stop valve 222 and the third stop valve 241, and the fifth pipe section 351 and the sixth pipe section 361 are fixed on the support column 190 by a pipe code; the fifth pipe section 351 and the sixth pipe section 361 are connected to the support column 190 by a pipe code; A stop valve is provided at the section 361, and the ends of the fifth pipe section 351 and the sixth pipe section 361 need to be provided with a longer pipe to be connected to the second condenser 232. The fifth pipe section 351 and the sixth pipe section 361 are subjected to greater force and have lower structural stability. The support column 190 can support the fifth pipe section 351 and the sixth pipe section 361, making the pipeline structure more stable. Moreover, only one support column 190 is required to support the fifth pipe section 351 and the sixth pipe section 361 of the three unit systems, and the structure is compact. , saving space; the fifth pipe section 351 and the sixth pipe section 361 of the three unit systems are both facing the left side wall of the first shell 100, and the fifth pipe and the sixth flow pipe of the three unit systems are both led out from the left side wall of the first shell 100, which is convenient for the pipeline layout on site; the support column 190 is arranged at a position close to the rear side wall of the first shell 100. During production, an openable and closable cover can be set at a position corresponding to the rear side wall of the first shell 100, so as to open the cover to operate and repair the third stop valve 241 and the fourth stop valve 242.

[0038] In some embodiments of the present invention, the throttling component 260 is an expansion valve, and the throttling component 260 is disposed in the first chamber. The temperature sensing package of the expansion valve is generally disposed on the outlet pipe of the evaporator 270. By disposing the expansion valve in the first chamber, it is easy to install the temperature sensing package.

[0039] The preferred embodiments of the present invention are specifically described above, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A heat pump constant temperature dehumidification device, It is characterized in that include: A heat pump system, comprising at least three unit systems, wherein the unit systems comprise a compressor, a first condenser, a second condenser, a first stop valve, a second stop valve, a throttling component and an evaporator, wherein the compressor has a refrigerant inlet and a refrigerant outlet, wherein the first stop valve, the first condenser, the throttling component and the evaporator are sequentially connected between the refrigerant outlet and the refrigerant inlet; the refrigerant outlet is connected to the first stop valve via a first pipe, wherein the first pipe is provided with a first bypass port, wherein the first condenser is connected to the throttling component via a second pipe, wherein the second pipe is provided with a second bypass port, wherein the second stop valve and the second condenser are sequentially connected between the first bypass port and the second bypass port; Each of the unit systems has a heating and dehumidification mode and a cooling and dehumidification mode. In the heating and dehumidification mode, the first stop valve is opened and the second stop valve is closed. In the cooling and dehumidification mode, the first stop valve is closed and the second stop valve is opened, so that a certain number of unit systems can be in the cooling and dehumidification mode and the other unit systems can be in the heating and dehumidification mode according to the temperature and humidity state of the air. A base frame assembly, wherein the base frame assembly is provided with an air flow channel, the air flow channel has an air flow inlet and an air flow outlet, the evaporators of the three unit systems are collectively referred to as an evaporation assembly, the first condensers of the three unit systems are collectively referred to as a condensation assembly, the evaporation assembly and the condensation assembly are both arranged in the air flow channel, the evaporation assembly is arranged between the condensation assembly and the air flow inlet, and the second condensers of the three unit systems are all arranged outside the air flow channel; The base frame assembly includes a first shell, the airflow outlet and the airflow inlet are both arranged on the first shell, a first chamber, a second chamber and a third chamber are sequentially arranged in the first shell from right to left, a first partition is arranged between the first chamber and the second chamber, a first fan is arranged on the first partition, the first chamber and the second chamber are connected through the first fan, and a second partition is arranged between the second chamber and the third chamber; the airflow inlet is arranged on the right side wall of the first chamber, the airflow outlet is arranged on the cavity wall of the second chamber, the evaporation component and the condensation component are both arranged in the first chamber, and the compressor is arranged in the third chamber; The first stop valve and the second stop valve are both solenoid valves, and the first stop valve and the second stop valve are both arranged in the third chamber; The throttling component is an expansion valve, and the throttling component is arranged in the first chamber.

2. The heat pump constant temperature dehumidification device according to claim 1, Features: The unit system also includes an oil separator, a liquid reservoir and a gas-liquid separator. The oil separator is connected in series between the refrigerant outlet and the first bypass port, the liquid reservoir is connected in series between the second bypass port and the throttling component, and the gas-liquid separator is connected in series between the evaporator and the refrigerant inlet; the first stop valve, the second stop valve, the oil separator, the liquid reservoir and the gas-liquid separator are all arranged in the third chamber.

3. The heat pump constant temperature dehumidification device according to claim 2, Features: The first stop valve is connected to the first condenser through a third tube, the tube section of the second tube located between the first condenser and the liquid reservoir is called the second-first tube section, and the tube section located between the liquid reservoir and the throttling component is called the second-second tube section, and the evaporator and the gas-liquid separator are connected through a fourth tube; the third tube, the second-first tube section, the second-second tube section and the fourth tube all extend from the third chamber through the first partition and the second partition to the first chamber; the third tube, the second-first tube section, the second-second tube section and the fourth tube are collectively referred to as a connecting tube group, and the connecting tube group is close to the rear side wall of the first shell, and the connecting tube groups of the three unit systems are arranged sequentially from top to bottom.

4. The heat pump constant temperature dehumidification device according to claim 2, Features: The third chamber is provided with a left area and a right area, the left area is provided between the right area and the left side wall of the third chamber, the compressors of the three unit systems are arranged in the left area from front to back, the oil separators, the liquid reservoirs and the gas-liquid separators of the three unit systems are all arranged in the right area; an openable and closable inspection cover is provided on the left side wall of the third chamber.

5. The heat pump constant temperature dehumidification device according to claim 1, Features: The second condenser is arranged on the outside of the first shell; the first bypass port and the second bypass port are both arranged in the third chamber, the first bypass port and the second condenser are connected through a fifth tube, the second condenser and the second bypass port are connected through a sixth tube, and the fifth tube and the sixth tube both pass through the cavity wall of the third chamber.

6. The heat pump constant temperature dehumidification device according to claim 5, Features: The fifth pipe has a fifth pipe section, the sixth pipe has a sixth pipe section, the fifth pipe section and the sixth pipe section are both arranged in the third chamber, the fifth pipe section is provided with a third stop valve, and the sixth pipe section is provided with a fourth stop valve.

7. The heat pump constant temperature dehumidification device according to claim 5, Features: A support column is provided in the third chamber, the fifth tube has a fifth tube segment arranged transversely, the sixth tube has a sixth tube segment, the fifth tube segment and the sixth tube segment are parallel, the fifth tube segment and the sixth tube segment are respectively arranged on the support column, the fifth tube segment and the sixth tube segment are collectively referred to as a tube segment assembly, and the tube segment assemblies of the three unit systems are arranged sequentially from top to bottom.

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