Heat pump unit coupled with seawater desalination

Abstract

The invention relates to the technical field of heat pump units, and discloses a heat pump unit coupled with seawater desalination, which comprises a seawater tank used for containing seawater, a condensation water tank used for storing condensed water, a condensation unit arranged in the condensation water tank and used for condensing and liquefying water vapor, and a plurality of condensation pipes arranged in the condensation water tank. The condensation pipes are arranged in the condensation water tank at equal intervals; the driving unit drives the condensation pipes to rotate to generate centrifugal force, so that liquid water condensed on the surfaces of the condensation pipes is thrown out, the thrown-out water falls into the condensation water tank and is stored, the liquid water condensed on the surfaces of the condensation pipes can be thrown out in time through the device, the liquid water is prevented from forming a heat insulation layer on the surfaces of the condensation pipes, and the condensation effect is improved. The condensation pipe can keep good heat exchange efficiency all the time, and the condensation efficiency of the condensation pipe is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pump units, and in particular to a heat pump unit coupled with seawater desalination. Background Art

[0002] Desalination refers to the process of removing salt and minerals from seawater or brackish water (such as brackish water) to convert it into fresh water suitable for drinking, agricultural irrigation, or industrial use. Desalination involves removing salt from seawater to produce fresh water. Currently, the mainstream methods for desalination are membrane exchange and distillation. While these two methods appear to be separate approaches, they both involve creating an unbalanced potential difference, producing fresh water while the system corrects the potential difference.

[0003] Existing seawater desalination equipment needs to heat seawater to make it boil, and then the water inside evaporates. The resulting steam exchanges heat with the refrigerant in the condenser tube of the heat pump and condenses to form liquid fresh water. The formed liquid water will hang on the surface of the condenser tube until it gathers into droplets and then drips from the surface of the condenser tube. The water droplets on the tube wall are equivalent to adding a layer of insulation between the hot steam and the cold tube wall, affecting the effective transfer of heat from the steam to the cooling water, resulting in the steam unable to condense quickly and reducing the condensation efficiency. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a heat pump unit coupled with seawater desalination.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A heat pump unit coupled with seawater desalination, comprising: Seawater tank, used to hold seawater; Condensate tank, used for storing condensed water; A condensing unit is disposed inside the condensate tank and is used to condense and liquefy water vapor. The condensing unit includes a plurality of condensing tubes, which are equidistantly disposed inside the condensate tank and are configured to rotate about the central axis of the condensate tank. The driving unit is arranged on the outer surface of the condensation water tank and is used to drive a plurality of condensation pipes to rotate with the central axis of the condensation water tank as the rotation center.

[0006] As a further solution of the present invention, the condensing unit further includes: A plurality of heat exchange fins are sleeved on the outer surfaces of the plurality of condenser tubes, wherein the plurality of heat exchange fins are aligned vertically and a gap is provided between adjacent heat exchange fins; A sealing plate is fixedly installed between the inner walls of the condensate tank, and a through hole is opened on the upper surface of the sealing plate at the middle position; A sealing ring is rotatably mounted between the inner walls of the condensate tank, the sealing ring is arranged on the lower surface of the sealing plate, the upper surface of the sealing ring is flush with the lower surface of the sealing plate, the plurality of condensing tubes are fixedly mounted on the lower surface of the sealing ring at equal intervals, and the upper surface of the sealing ring is provided with an annular groove; A plurality of partitions are fixedly mounted on the bottom wall of the annular groove at equal intervals; The circular ring is fixedly mounted on the bottom wall of the annular groove. The circular ring and a plurality of partitions divide the annular groove into a plurality of first cavities and a second cavities.

[0007] As a further solution of the present invention, the circumferential outer surfaces of the several heat exchanger plates are provided with multiple openings, the middle outer surfaces of the several heat exchanger plates are arranged in a conical shape, and the top of the cone is provided with a circular hole, and the diameters of the several circular holes are arranged to decrease successively from top to bottom.

[0008] As a further solution of the present invention, the several condensing tubes are arranged in a U shape, and both ends of the several condensing tubes pass through the bottom wall of the annular groove on the sealing ring. One end of the condensing tube is arranged inside the first cavity, and the other end of the condensing tube is arranged inside the second cavity. The first cavity is connected to the second cavity through the condensing tube.

[0009] As a further solution of the present invention, a surface cooler water outlet pipe and a surface cooler water inlet pipe are fixedly installed on the upper surface of the sealing plate. The two water inlet ends of the surface cooler water outlet pipe both pass through the lower surface of the sealing plate and are respectively connected to the two first cavities. The two water outlet ends of the surface cooler water inlet pipe both pass through the lower surface of the sealing plate and are respectively connected to the two second cavities.

[0010] As a further solution of the present invention, the driving unit includes: a gear ring fixedly mounted on the lower surface of the sealing ring; a gear rotatably mounted on the inner wall of the condensate tank, the gear meshing with the gear ring; The driving motor is fixedly installed on the outer surface of the condensate tank, and the output end of the driving motor passes through the inner wall of the condensate tank and is fixedly installed at the rotation center of the gear.

[0011] As a further solution of the present invention, the outer surface of the seawater tank near the bottom is fixedly connected to a seawater return pipe and a seawater supply pipe, the outer surface of the seawater return pipe is provided with a seawater pump, and the outer surface of the seawater supply pipe is provided with a water supply regulating valve.

[0012] As a further solution of the present invention, a steam pipe is fixedly connected between the top ends of the seawater tank and the condensate tank, and a steam pump and a steam flow valve are provided on the outer surface of the steam pipe.

[0013] As a further solution of the present invention, a condensate pipe is fixedly installed on the outer surface of the condensate tank near the bottom, and a condensate pump is provided on the outer surface of the condensate pipe.

[0014] As a further solution of the present invention, the water outlet end of the surface cooler outlet pipe passes through the outer surface of the condensate tank, and the water inlet end of the surface cooler inlet pipe passes through the outer surface of the condensate tank. A surface cooler inlet pump is provided.

[0015] The present application uses a driving unit to drive the rotation of several condenser tubes to generate centrifugal force, thereby throwing out the liquid water condensed on their surface. The thrown water falls inside the condensate tank and is stored. Through this device, the liquid water condensed on the surface of the condenser tube can be thrown out in time to avoid the liquid water forming an insulating layer on the surface of the condenser tube, so that the condenser tube can always maintain good heat exchange efficiency, ensuring the condensation efficiency of the condenser tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a heat pump unit coupled with seawater desalination proposed by the present invention; Figure 2 This is a schematic diagram of a condensate tank of a heat pump unit coupled with seawater desalination proposed by the present invention; Figure 3 This is a schematic diagram of the interior of a condensate tank of a heat pump unit coupled with seawater desalination proposed by the present invention; Figure 4 This is a schematic diagram of a condensing unit of a heat pump unit coupled with seawater desalination proposed by the present invention; Figure 5 This is a schematic cross-sectional view of a sealing plate of a heat pump unit coupled with seawater desalination proposed by the present invention; Figure 6 This is a schematic diagram of the sealing ring of a heat pump unit coupled with seawater desalination proposed by the present invention; Figure 7 This is a schematic diagram of the heat exchanger fins of a heat pump unit coupled with seawater desalination proposed by the present invention; Figure 8 This is a bottom view schematic diagram of a sealing plate of a heat pump unit coupled with seawater desalination proposed by the present invention; Figure 9 This is a schematic cross-sectional view of a heat exchanger fin of a heat pump unit coupled with seawater desalination proposed by the present invention; Figure 10 This is a schematic diagram of the condenser pipe of a heat pump unit coupled with seawater desalination proposed by the present invention.

[0017] In the figure: 100, seawater return pipe; 200, seawater pump; 300, seawater supply pipe; 400, water supply regulating valve; 500, seawater tank; 600, steam pipe; 700, steam pump; 800, steam flow valve; 900, condensate tank; 1000, condensing unit; 1010, condensing pipe; 1020, heat exchanger; 1021, opening; 1022, circular hole; 1030, sealing plate ; 1040, sealing ring; 1041, first cavity; 1042, second cavity; 1050, partition; 1060, ring; 1100, cooler outlet pipe; 1200, cooler inlet pipe; 1300, cooler inlet pump; 1400, condensate pump; 1500, condensate pipe; 1600, drive unit; 1610, drive motor; 1620, gear; 1630, gear ring. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0021] In order to quickly clean the condensed water from the surface of the condenser tube 1010, Figure 1 and Figure 3As shown, the present application discloses a heat pump unit coupled with seawater desalination, comprising: a seawater tank 500, a condensate tank 900, and a drive unit 1600. The seawater tank 500 is used to contain seawater, and then the seawater inside the seawater tank 500 is heated to boil, causing water to evaporate from it to form water vapor, which enters the interior of the condensate tank 900. Because the condensation unit 1000 includes a plurality of condensation tubes 1010, and the plurality of condensation tubes 1010 are equidistantly arranged inside the condensate tank 900, the water vapor is cooled by the plurality of condensation tubes 1010 in the condensation unit 1000, so that the water vapor condenses into liquid water. Moreover, because the drive unit 1600 is arranged on the outer surface of the condensate tank 900, It is used to drive several condenser tubes 1010 to rotate with the central axis of the condensation water tank 900 as the rotation center, so that centrifugal force is generated by the rotation of several condenser tubes 1010, thereby throwing out the liquid water condensed on the surface thereof, and the thrown water falls into the inside of the condensation water tank 900 and is stored. Through this device, the liquid water condensed on the surface of the condenser tube 1010 can be thrown out in time to avoid the liquid water forming an insulating layer on the surface of the condenser tube 1010, so that the condenser tube 1010 can always maintain a good heat exchange efficiency, ensuring the condensation efficiency of the condenser tube 1010.

[0022] In order to enable the condenser 1010 to condense water vapor, Figure 4 and Figure 5 As shown, the condensing unit 1000 also includes: a plurality of heat exchange plates 1020, a sealing plate 1030, a sealing ring 1040, a plurality of partitions 1050 and a ring 1060. The sealing ring 1040 is rotatably installed between the inner walls of the condensate tank 900, and the plurality of condensing tubes 1010 are fixedly installed on the lower surface of the sealing ring 1040 at equal intervals. External cooling water enters the interior of the plurality of condensing tubes 1010. When the water vapor contacts the surface of the condensing tube 1010, the cooling water will absorb the temperature of the water vapor, thereby condensing the water vapor to form liquid water. Specifically, in order for the cooling water to be able to enter and exit the condensing tube 1010, as shown in FIG. Figure 6 As shown, an annular groove is provided on the upper surface of the sealing ring 1040, and a plurality of partitions 1050 are fixedly installed at equal distances on the bottom wall of the annular groove. A circular ring 1060 is fixedly installed on the bottom wall of the annular groove. The circular ring 1060 and the plurality of partitions 1050 divide the annular groove into a plurality of first cavities 1041 and second cavities 1042. In order to seal the first cavity 1041 and the second cavity 1042, the sealing plate 1030 is fixedly installed between the inner walls of the condensate tank 900. The sealing ring 1040 is arranged on the lower surface of the sealing plate 1030. The upper surface of the sealing ring 1040 is flush with the lower surface of the sealing plate 1030. As shown in FIG. Figure 10As shown, the several condensing tubes 1010 are arranged in a U shape, and both ends of the several condensing tubes 1010 pass through the bottom wall of the annular groove on the sealing ring 1040, one end of the condensing tube 1010 is arranged inside the first cavity 1041, and the other end of the condensing tube 1010 is arranged inside the second cavity 1042. The first cavity 1041 is connected with the second cavity 1042 through the condensing tube 1010, and the external cooling water enters the condensing tube 1010 from the second cavity 1042, and then circulates from the inside of the condensing tube 1010 to enter the first cavity 1041, so that the condensing tube 1010 has the function of condensing water vapor. It should be noted that a through hole is opened on the upper surface of the middle position of the sealing plate 1030, and the through hole facilitates the circulation of water vapor.

[0023] In order to enable the cooling water to circulate in and out of the condenser 1010, specifically, Figure 5 As shown, the upper surface of the sealing plate 1030 is fixedly mounted with a cooler outlet pipe 1100 and a cooler inlet pipe 1200. Figure 8 As shown, the two water inlet ends of the cooler water outlet pipe 1100 both pass through the lower surface of the sealing plate 1030 and are respectively connected to the two first cavities 1041. The two water outlet ends of the cooler water inlet pipe 1200 both pass through the lower surface of the sealing plate 1030 and are respectively connected to the two second cavities 1042. The external cooling water enters the two second cavities 1042 through the water inlet end of the cooler water inlet pipe 1200, and then enters the two first cavities 1041 through the condenser 1010, and is then discharged through the water outlet end of the cooler water outlet pipe 1100, so that the cooling water circulates inside the condenser 1010 to facilitate the condensation of water vapor.

[0024] In order to increase the surface area of ​​the condenser 1010, the heat exchange between the external cooling water and the water vapor is faster. Figure 5 As shown, a plurality of heat exchange fins 1020 are sleeved on the outer surfaces of a plurality of condenser tubes 1010, and the plurality of heat exchange fins 1020 are aligned up and down. The heat exchange area of ​​the condenser tube 1010 is greatly increased by the plurality of heat exchange fins 1020, so that water vapor can quickly exchange heat with cooling water, thereby improving the condensation speed. In order for water vapor to flow between the plurality of heat exchange fins 1020, a gap is provided between two adjacent heat exchange fins 1020.

[0025] It should be noted that in order to allow the liquid water condensed on the surface of the heat exchanger fins 1020 to flow smoothly to the bottom of the condensate tank 900, the outer circumferential surface of the heat exchanger fins 1020 is provided with a plurality of openings 1021, and the condensed liquid water flows into the bottom of the condensate tank 900 through the openings 1021. In order to allow the water vapor to be evenly distributed to the gaps between the heat exchanger fins 1020, as shown in FIG. Figure 9As shown, the middle outer surfaces of the plurality of heat exchange fins 1020 are arranged in a conical shape, and a circular hole 1022 is opened at the top of the cone. The diameters of the plurality of circular holes 1022 are arranged to decrease from top to bottom. As the circular holes 1022 are arranged to decrease layer by layer, the water vapor is Figure 9 When flowing in the direction of the arrow shown, it can be evenly distributed inside a single gap and then condensed into liquid water, avoiding uneven heat exchange between the upper condenser tubes 1010 and heat exchange fins 1020 and the lower ones, further improving the condensation efficiency.

[0026] In order to enable the condenser 1010 to rotate, the driving unit 1600 includes: a gear ring 1630 , a gear 1620 and a driving motor 1610 . Since the drive motor 1610 is fixedly mounted on the outer surface of the condensate tank 900, the output end of the drive motor 1610 passes through the inner wall of the condensate tank 900 and is fixedly mounted on the rotation center of the gear 1620, and the gear 1620 is driven to rotate by the drive motor 1610. Moreover, because the gear ring 1630 is fixedly mounted on the lower surface of the sealing ring 1040, the gear 1620 is rotatably mounted on the inner wall of the condensate tank 900, and the gear 1620 is meshed with the gear ring 1630. The gear 1620 drives the gear ring 1630 to rotate around the central axis of the condensate tank 900, and the gear ring 1630 drives the sealing ring 1040 to rotate around the central axis of the condensate tank 900, thereby driving a plurality of condenser tubes 1010 and a plurality of heat exchange fins 1020 to rotate, so that the liquid water condensed on the surface is thrown out by the rotation, thereby avoiding affecting the heat exchange efficiency of the condenser tubes 1010 and the heat exchange fins 1020.

[0027] It should be noted that if Figure 5 and Figure 6 As shown, because the first cavity 1041 and the second cavity 1042 are provided with a plurality of condensing tubes 1010, the plurality of condensing tubes 1010 are divided into a plurality of groups, and the surface cooler water outlet pipe 1100 and the surface cooler water inlet pipe 1200 can only be connected with two groups of condensing tubes 1010. When the plurality of condensing tubes 1010 rotate relative to the sealing plate 1030, the plurality of groups of condensing tubes 1010 will be intermittently connected with the surface cooler water outlet pipe 1100 and the surface cooler water inlet pipe 1200, and the other groups of condensing tubes 1010 are not connected with the surface cooler water outlet pipe 1100 and the surface cooler water inlet pipe 1200. At this time, the cooling water inside the condensing tube 1010 stops flowing and will be temporarily stored inside the condensing tube 1010. Through this setting, the cooling water inside the condensing tube 1010 can fully exchange heat with the water vapor, thereby absorbing the temperature inside the water vapor, which is convenient for subsequent use.

[0028] In order to make the desalination of seawater cyclic and evaporate seawater through low-potential heat sources, such as Figure 1As shown, the outer surface of the seawater tank 500 near the bottom is fixedly connected to a seawater return pipe 100 and a seawater supply pipe 300, the outer surface of the seawater return pipe 100 is provided with a seawater pump 200, the outer surface of the seawater supply pipe 300 is provided with a water supply regulating valve 400, a steam pipe 600 is fixedly connected between the top of the seawater tank 500 and the condensate tank 900, the outer surface of the steam pipe 600 is provided with a steam pump 700 and a steam flow valve 800, the outer surface of the condensate tank 900 near the bottom is fixedly installed with a condensate pipe 1500, the outer surface of the condensate pipe 1500 is provided with a condensate pump 1400, before the system is officially put into operation, the seawater tank 500 is first depressurized, and after the decompression process is completed, the water supply regulating valve 400 is opened, seawater flows in, and the system starts to officially operate. Seawater from the ocean enters the seawater tank 500 through the seawater supply pipe 300 and the water supply regulating valve 400. When the water level reaches Level I in the seawater tank 500, the system begins to operate, lowering the boiling point of the seawater and causing it to evaporate. The resulting vapor enters the condensate tank 900 through the steam pipe 600, steam pump 700, and steam flow valve 800. The vapor exchanges heat with the cooling water in the condenser pipe 1010 and heat exchanger fins 1020, condensing to form condensate, which accumulates at the bottom. When the condensate accumulates to a certain level, the condensate pump 1400 is activated, and the accumulated condensate is pumped away from the condensate pipe 1500. A level II sensor is installed in the seawater tank 500. When the seawater falls below the specified level, the water supply regulating valve 400, seawater pump 200, steam pump 700, and steam flow valve 800 coordinate to maintain a stable level. This technology is well-established and will not be elaborated on here.

[0029] Specifically, the seawater tank 500 is depressurized by filling the container with water, manually closing the water supply regulating valve 400, and then manually starting the seawater pump 200 and the condensate pump 1400 to drain the water from the seawater tank 500 and condensate tank 900. At this point, the seawater tanks 500 and condensate tanks 900 are under negative pressure. Liquid Levels I and II are monitored by installing sensors in the seawater tank 500. When the seawater in the tank reaches Level I, both sensors emit a signal. When the seawater in the tank reaches between Levels I and II (including Level II), only one sensor emits a signal. When the seawater in the tank 500 is below Level II, neither sensor emits a signal. These signals are received every minute, and the number of received signals is used to control the corresponding regulating components.

[0030] Specifically, for the control of the condensate pump 1400 on the condensate pipe 1500, a mass sensor is installed during the processing of the condensate tank 900. The initial value of the mass sensor is the weight of the condensate tank 900. A threshold is set for the mass sensor (for example: the mass of the mass sensor increases by 1t), and the sensor controls the condensate pump 1400 to discharge the condensate.

[0031] In order to allow the cooling water to circulate in the condenser 1010, the outlet end of the surface cooler outlet pipe 1100 passes through the outer surface of the condensate tank 900, and the inlet end of the surface cooler inlet pipe 1200 passes through the outer surface of the condensate tank 900 and is provided with a surface cooler inlet pump 1300. The surface cooler inlet pump 1300 is connected to the external cooling water pool. The cooling water after heat exchange flows from the outlet end of the surface cooler outlet pipe 1100 into the external heat pump system, thereby preheating the heating component of the heat pump system, so that the waste heat of the water vapor can be utilized, reducing energy consumption.

[0032] The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A heat pump unit coupled with seawater desalination, characterized in that: include: A seawater tank (500) for containing seawater; Condensate tank (900), used for storing condensed water; A condensation unit (1000) is arranged inside the condensation water tank (900) and is used for condensing and liquefying water vapor. The condensation unit (1000) comprises a plurality of condensation tubes (1010). The plurality of condensation tubes (1010) are arranged at equal intervals inside the condensation water tank (900). The plurality of condensation tubes (1010) are configured to rotate with the central axis of the condensation water tank (900) as the rotation center. The driving unit (1600) is arranged on the outer surface of the condensation water tank (900) and is used to drive the plurality of condensation tubes (1010) to rotate with the central axis of the condensation water tank (900) as the rotation center.

2. The heat pump unit coupled with seawater desalination according to claim 1, characterized in that: The condensing unit (1000) further comprises: a plurality of heat exchange fins (1020) sleeved on the outer surfaces of the plurality of condenser tubes (1010), wherein the plurality of heat exchange fins (1020) are aligned vertically, and a gap is provided between two adjacent heat exchange fins (1020); A sealing plate (1030) is fixedly installed between the inner walls of the condensate tank (900), and a through hole is provided on the upper surface of the sealing plate (1030) at a middle position; A sealing ring (1040) is rotatably mounted between the inner walls of the condensate tank (900), the sealing ring (1040) being arranged on the lower surface of the sealing plate (1030), the upper surface of the sealing ring (1040) being flush with the lower surface of the sealing plate (1030), the plurality of condensing tubes (1010) being fixedly mounted at equal distances on the lower surface of the sealing ring (1040), and the upper surface of the sealing ring (1040) being provided with an annular groove; A plurality of partitions (1050) are fixedly mounted on the bottom wall of the annular groove at equal intervals; A circular ring (1060) is fixedly mounted on the bottom wall of the annular groove. The circular ring (1060) and a plurality of partitions (1050) divide the annular groove into a plurality of first cavities (1041) and second cavities (1042).

3. The heat pump unit coupled with seawater desalination according to claim 2, characterized in that: The circumferential outer surfaces of the plurality of heat exchange fins (1020) are provided with a plurality of openings (1021), the middle outer surfaces of the plurality of heat exchange fins (1020) are arranged in a conical shape, and the top of the cone is provided with a circular hole (1022), and the diameters of the plurality of circular holes (1022) are arranged to decrease sequentially from top to bottom.

4. The heat pump unit coupled with seawater desalination according to claim 2, characterized in that: The plurality of condensing tubes (1010) are arranged in a U-shape, and both ends of the plurality of condensing tubes (1010) pass through the bottom wall of the annular groove on the sealing ring (1040). One end of the condensing tube (1010) is arranged inside the first cavity (1041), and the other end of the condensing tube (1010) is arranged inside the second cavity (1042). The first cavity (1041) is connected to the second cavity (1042) through the condensing tube (1010).

5. The heat pump unit coupled with seawater desalination according to claim 4, characterized in that: A cooler water outlet pipe (1100) and a cooler water inlet pipe (1200) are fixedly mounted on the upper surface of the sealing plate (1030); both water inlet ends of the cooler water outlet pipe (1100) pass through the lower surface of the sealing plate (1030) and are respectively connected to the two first cavities (1041); and both water outlet ends of the cooler water inlet pipe (1200) pass through the lower surface of the sealing plate (1030) and are respectively connected to the two second cavities (1042).

6. The heat pump unit coupled with seawater desalination according to claim 3, characterized in that: The driving unit (1600) comprises: A gear ring (1630) fixedly mounted on the lower surface of the sealing ring (1040); A gear (1620) is rotatably mounted on the inner wall of the condensate tank (900), wherein the gear (1620) is meshed with a gear ring (1630); The drive motor (1610) is fixedly mounted on the outer surface of the condensate tank (900), and the output end of the drive motor (1610) passes through the inner wall of the condensate tank (900) and is fixedly mounted on the rotation center of the gear (1620).

7. The heat pump unit coupled with seawater desalination according to claim 1, characterized in that: A seawater return pipe (100) and a seawater supply pipe (300) are fixedly connected to the outer surface of the seawater tank (500) near the bottom; a seawater pump (200) is provided on the outer surface of the seawater return pipe (100); and a water supply regulating valve (400) is provided on the outer surface of the seawater supply pipe (300).

8. The heat pump unit coupled with seawater desalination according to claim 1, characterized in that: A steam pipe (600) is fixedly connected between the top ends of the seawater tank (500) and the condensate tank (900), and a steam pump (700) and a steam flow valve (800) are provided on the outer surface of the steam pipe (600).

9. The heat pump unit coupled with seawater desalination according to claim 1, characterized in that: A condensate pipe (1500) is fixedly mounted on the outer surface of the condensate tank (900) near the bottom, and a condensate pump (1400) is provided on the outer surface of the condensate pipe (1500).

10. The heat pump unit coupled with seawater desalination according to claim 5, characterized in that: The water outlet end of the surface cooler water outlet pipe (1100) passes through the outer surface of the condensate tank (900), and the water inlet end of the surface cooler water inlet pipe (1200) passes through the outer surface of the condensate tank (900), and a surface cooler water inlet pump (1300) is provided.

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