A heat pump unit coupled to a seawater desalination

By designing a drive unit in the seawater desalination device to rotate the condenser tubes and use centrifugal force to throw out liquid water, combined with heat exchange plates and a sealing structure, the problem of liquid water forming a heat insulation layer on the surface of the condenser tubes is solved, thereby improving condensation efficiency and enhancing the overall performance of seawater desalination.

CN120609155BActive Publication Date: 2025-11-21QINGDAO HARBIN INSTITUTE OF TECHNOLOGY (WEIHAI)
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Patent Information

Application Number
CN202511105020.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-07
Publication Date
2025-11-21
Estimated Expiration
2045-08-07

AI Technical Summary

Technical Problem

In existing seawater desalination plants, the liquid water on the surface of the condenser tubes forms a heat insulation layer, which affects the effective transfer of steam to the cooling water, resulting in a reduction in condensation efficiency.

Method used

The condenser tubes are rotated by a drive unit, and centrifugal force is used to throw off the liquid water condensed on the surface of the condenser tubes. Combined with the design of heat exchange fins and sealing structure, the condenser tubes are ensured to maintain good heat exchange efficiency.

Benefits of technology

This technology enables highly efficient condensation in the condenser tubes, improving the overall efficiency of the seawater desalination process and preventing the formation of an insulation layer on the surface of the condenser tubes by liquid water, thus maintaining good heat exchange performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application 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 condensed water tank used for storing condensed water, a condensing unit arranged in the condensed water tank and used for condensing and liquefying water vapor, and a plurality of condensing pipes arranged equidistantly in the condensed water tank. The rotation of the plurality of condensing pipes driven by a driving unit generates centrifugal force, so that the liquid water condensed on the surfaces of the condensing pipes is thrown out, falls in the condensed water tank and is stored. The liquid water condensed on the surfaces of the condensing pipes can be thrown out in time through the device, a heat insulation layer formed by the liquid water on the surfaces of the condensing pipes is avoided, the condensing pipes can keep good heat exchange efficiency, and the condensing efficiency of the condensing pipes is ensured.
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Description

Technical Field

[0001] This invention relates to the field of heat pump unit technology, and more particularly to a heat pump unit coupled with seawater desalination. Background Technology

[0002] Seawater desalination refers to the process of removing salt and minerals from seawater or brackish water (such as brackish water) and converting it into freshwater suitable for human drinking, agricultural irrigation, or industrial use. Seawater desalination essentially uses seawater to produce freshwater. Currently, the mainstream methods for seawater desalination are membrane exchange and distillation. While these two methods appear to be different approaches, they both actually create a potential imbalance, producing freshwater while the system corrects this imbalance.

[0003] Existing seawater desalination equipment requires heating seawater to boiling it, and then the internal water evaporates. The resulting steam exchanges heat with the refrigerant in the condenser tube of a heat pump and condenses to form liquid fresh water. The formed liquid water hangs on the surface of the condenser tube until it gathers into droplets before dripping off the surface of the condenser tube. The water droplets on the tube wall are equivalent to adding a heat insulation layer between the hot steam and the cold tube wall, which affects the effective transfer of heat from the steam to the cooling water, causing the steam to not condense quickly and reducing the condensation efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a heat pump unit coupled with seawater desalination.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A heat pump unit coupled with seawater desalination includes:

[0007] Seawater tanks are used to hold seawater.

[0008] Condensate tank, used for storing condensate;

[0009] A condensation unit, which is located inside the condensate tank, is used for the condensation and liquefaction of water vapor. The condensation unit includes several condensation tubes, which are equidistantly arranged inside the condensate tank. The several condensation tubes are configured to be able to rotate about the central axis of the condensate tank.

[0010] The drive unit, located on the outer surface of the condensate tank, is used to drive several condenser tubes to rotate around the central axis of the condensate tank.

[0011] As a further aspect of the present invention, the condensation unit further includes:

[0012] Several heat exchange plates are fitted onto the outer surface of several condenser tubes. The heat exchange plates are aligned vertically and there is a gap between adjacent heat exchange plates.

[0013] A sealing plate is fixedly installed between the inner walls of the condensate tank, and a through hole is provided on the upper surface of the middle position of the sealing plate;

[0014] A sealing ring is rotatably installed between the inner walls of the condensate tank. The sealing ring is located on the lower surface of the sealing plate, and the upper surface of the sealing ring is flush with the lower surface of the sealing plate. Several condensate tubes are fixedly installed at equal intervals on the lower surface of the sealing ring, and an annular groove is formed on the upper surface of the sealing ring.

[0015] Several partitions are fixedly installed at equal intervals on the bottom wall of the annular groove;

[0016] A circular ring is fixedly installed on the bottom wall of an annular groove, and the circular ring and several partitions divide the annular groove into multiple first cavities and second cavities.

[0017] As a further aspect of the present invention, the outer circumferential surface of the plurality of heat exchange plates is provided with a plurality of openings, the middle outer surface of the plurality of heat exchange plates is provided in a conical shape, and a circular hole is provided at the top of the conical shape, and the diameter of the plurality of circular holes is provided to decrease sequentially from top to bottom.

[0018] As a further embodiment of the present invention, the plurality of condenser tubes are arranged in a U-shape, and both ends of the plurality of condenser tubes penetrate the bottom wall of the annular groove on the sealing ring. One end of the condenser tube is disposed inside the first cavity, and the other end of the condenser tube is disposed inside the second cavity. The first cavity is connected to the second cavity through the condenser tubes.

[0019] As a further embodiment of the present invention, a surface cooler outlet pipe and a surface cooler inlet pipe are fixedly installed on the upper surface of the sealing plate. The two inlet ends of the surface cooler outlet pipe penetrate the lower surface of the sealing plate and are respectively connected to the two first cavities. The two outlet ends of the surface cooler inlet pipe penetrate the lower surface of the sealing plate and are respectively connected to the two second cavities.

[0020] As a further aspect of the present invention, the driving unit includes:

[0021] A toothed ring, which is fixedly installed on the lower surface of the sealing ring;

[0022] A gear, which is rotatably mounted on the inner wall of the condensate tank, meshes with a gear ring;

[0023] A drive motor is fixedly installed on the outer surface of the condensate tank, and the output end of the drive motor passes through the inner wall of the condensate tank and is fixedly installed at the rotation center of the gear.

[0024] As a further embodiment of the present invention, a seawater return pipe and a seawater supply pipe are fixedly connected to the outer surface of the seawater tank near the bottom. A seawater pump is provided on the outer surface of the seawater return pipe, and a water supply regulating valve is provided on the outer surface of the seawater supply pipe.

[0025] As a further embodiment of the present invention, a steam pipe is fixedly connected between the top 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.

[0026] As a further embodiment 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.

[0027] As a further embodiment of the present invention, the outlet end of the surface cooler outlet pipe penetrates the outer surface of the condensate tank, and the inlet end of the surface cooler inlet pipe penetrates the outer surface of the condensate tank and is provided with a surface cooler inlet pump.

[0028] This application uses a drive unit to rotate several condenser tubes, generating centrifugal force to throw off the liquid water condensed on their surfaces. The thrown-off water falls into the condensate tank and is stored. This device can promptly throw off the liquid water condensed on the surface of the condenser tubes, preventing the liquid water from forming a heat insulation layer on the surface of the condenser tubes. This allows the condenser tubes to maintain good heat exchange efficiency and ensures the condensation efficiency of the condenser tubes. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a heat pump unit coupled with seawater desalination proposed in this invention.

[0030] Figure 2 This is a schematic diagram of a condensate tank for a heat pump unit coupled with seawater desalination proposed in this invention.

[0031] Figure 3 This is a schematic diagram of the interior of the condensate tank of a heat pump unit coupled with seawater desalination proposed in this invention.

[0032] Figure 4 This is a schematic diagram of the condensing unit of a heat pump unit coupled with seawater desalination proposed in this invention;

[0033] Figure 5 This is a cross-sectional schematic diagram of a sealing plate of a heat pump unit coupled with seawater desalination proposed in this invention;

[0034] Figure 6 This is a schematic diagram of a sealing ring for a heat pump unit coupled with seawater desalination proposed in this invention;

[0035] Figure 7 This is a schematic diagram of the heat exchanger of a heat pump unit coupled with seawater desalination proposed in this invention;

[0036] Figure 8 This is a bottom view schematic diagram of the sealing plate of a heat pump unit coupled with seawater desalination proposed in this invention.

[0037] Figure 9 This is a cross-sectional schematic diagram of the heat exchanger fins of a heat pump unit coupled with seawater desalination proposed in this invention;

[0038] Figure 10 This is a schematic diagram of the condenser tube of a heat pump unit coupled with seawater desalination proposed in this invention.

[0039] In the diagram: 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, Condensation unit; 1010, Condensate tube; 1020, Heat exchange fin; 1021, Opening; 1022, Circular hole; 1030, Sealing plate. ; 1040, Sealing ring; 1041, First chamber; 1042, Second chamber; 1050, Partition plate; 1060, Circular ring; 1100, Surface cooler outlet pipe; 1200, Surface cooler inlet pipe; 1300, Surface cooler inlet pump; 1400, Condensate pump; 1500, Condensate pipe; 1600, Drive unit; 1610, Drive motor; 1620, Gear; 1630, Gear ring. Detailed Implementation

[0040] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0041] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] In order to quickly remove condensate from the surface of condenser tube 1010, such as Figure 1 and Figure 3 As shown, this application discloses a heat pump unit coupled with seawater desalination, including: a seawater tank 500, a condensate tank 900, and a drive unit 1600. The seawater tank 500 is used to hold seawater. The seawater inside the seawater tank 500 is heated to boiling, causing the water to evaporate and form water vapor. The water vapor enters the interior of the condensate tank 900. Because the condensate unit 1000 includes several condenser tubes 1010, which are equidistantly arranged inside the condensate tank 900, the water vapor is cooled by passing through the condenser tubes 1010, causing the water vapor to condense into liquid water. Furthermore, the drive unit 1600 is located on the outer surface of the condensate tank 900. This device is used to drive several condenser tubes 1010 to rotate around the central axis of the condensate tank 900. The rotation of the condenser tubes 1010 generates centrifugal force, which throws out the liquid water condensed on their surface. The thrown-out water falls into the condensate tank 900 and is stored. This device can promptly throw out the liquid water condensed on the surface of the condenser tubes 1010, preventing the liquid water from forming a heat insulation layer on the surface of the condenser tubes 1010. This allows the condenser tubes 1010 to maintain good heat exchange efficiency and ensures the condensation efficiency of the condenser tubes 1010.

[0044] In order for the condenser tube 1010 to condense water vapor, such as Figure 4 and Figure 5 As shown, the condensation unit 1000 further includes: several heat exchange plates 1020, a sealing plate 1030, a sealing ring 1040, several partitions 1050, and a circular ring 1060. The sealing ring 1040 is rotatably installed between the inner walls of the condensate tank 900. The several condenser tubes 1010 are equidistantly fixedly installed on the lower surface of the sealing ring 1040. External cooling water enters the interior of the several condenser tubes 1010. When water vapor comes into contact with the surface of the condenser tubes 1010, the cooling water absorbs the temperature of the water vapor, thereby condensing the water vapor into liquid water. Specifically, in order for the cooling water to enter and exit inside the condenser tubes 1010, such as... Figure 6As shown, the upper surface of the sealing ring 1040 has an annular groove. Several partitions 1050 are equidistantly fixed to the bottom wall of the annular groove. A circular ring 1060 is fixedly installed to the bottom wall of the annular groove. The circular ring 1060 and the partitions 1050 divide the annular groove into multiple first cavities 1041 and second cavities 1042. To seal the first cavities 1041 and second cavities 1042, a sealing plate 1030 is fixedly installed between the inner walls of the condensate tank 900. The sealing ring 1040 is disposed on the lower surface of the sealing plate 1030, and the upper surface of the sealing ring 1040 is flush with the lower surface of the sealing plate 1030. Because, as... Figure 10 As shown, the plurality of condenser tubes 1010 are arranged in a U-shape, and both ends of the plurality of condenser tubes 1010 penetrate the bottom wall of the annular groove on the sealing ring 1040. One end of the condenser tube 1010 is located inside the first cavity 1041, and the other end of the condenser tube 1010 is located inside the second cavity 1042. The first cavity 1041 is connected to the second cavity 1042 through the condenser tubes 1010. External cooling water enters the condenser tube 1010 from the second cavity 1042, and then circulates once inside the condenser tube 1010 before entering the first cavity 1041, thereby enabling the condenser tube 1010 to condense water vapor. It should be noted that a through hole is provided on the upper surface of the middle position of the sealing plate 1030 to facilitate the flow of water vapor.

[0045] In order to enable the cooling water to circulate in and out of the condenser 1010, specifically, as follows: Figure 5 As shown, a surface cooler outlet pipe 1100 and a surface cooler inlet pipe 1200 are fixedly installed on the upper surface of the sealing plate 1030, as... Figure 8 As shown, the two inlet ends of the surface cooler outlet pipe 1100 penetrate the lower surface of the sealing plate 1030 and are connected to the two first chambers 1041 respectively. The two outlet ends of the surface cooler inlet pipe 1200 penetrate the lower surface of the sealing plate 1030 and are connected to the two second chambers 1042 respectively. External cooling water enters the two second chambers 1042 through the inlet end of the surface cooler inlet pipe 1200, then enters the two first chambers 1041 through the condenser pipe 1010, and then is discharged through the outlet end of the surface cooler outlet pipe 1100, thereby circulating the cooling water inside the condenser pipe 1010 to facilitate the condensation of water vapor.

[0046] To increase the surface area of ​​the condenser tube 1010, allowing for faster heat exchange between the external cooling water and water vapor, such as... Figure 5As shown, several heat exchange plates 1020 are sleeved on the outer surface of several condenser tubes 1010. The heat exchange plates 1020 are arranged vertically aligned. The heat exchange area of ​​the condenser tubes 1010 is greatly increased by the heat exchange plates 1020, so that water vapor can exchange heat with cooling water quickly, thereby improving the condensation rate. In order for water vapor to flow between the heat exchange plates 1020, a gap is provided between two adjacent heat exchange plates 1020.

[0047] It should be noted that, in order to allow the liquid water condensed on the surface of the heat exchange plates 1020 to flow smoothly to the bottom of the condensate tank 900, multiple openings 1021 are provided on the outer circumferential surface of the heat exchange plates 1020. The condensed liquid water flows into the bottom of the condensate tank 900 through the openings 1021. To ensure that water vapor is evenly distributed among the gaps between the heat exchange plates 1020, as shown... Figure 9 As shown, the middle outer surface of the plurality of heat exchange plates 1020 is conical, and a circular hole 1022 is formed at the top of the cone. The diameter of the plurality of circular holes 1022 decreases sequentially from top to bottom. Because the circular holes 1022 decrease in size layer by layer, water vapor can pass through the conical plate in a relatively shallow and deep manner. Figure 9 When the flow is directed by the arrow, the heat can be evenly distributed into the individual gaps and then condensed into liquid water, thus avoiding uneven heat exchange between the upper condenser tube 1010 and heat exchange plate 1020 and the lower layer, and further improving the condensation efficiency.

[0048] In order for the condenser tube 1010 to rotate, the drive unit 1600 includes: a gear ring 1630, a gear 1620, and a drive motor 1610. Since the drive motor 1610 is fixedly installed 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 installed at the rotation center of the gear 1620, the drive motor 1610 drives the gear 1620 to rotate. Since the gear ring 1630 is fixedly installed on the lower surface of the sealing ring 1040, and the gear 1620 is rotatably installed on the inner wall of the condensate tank 900, the gear 1620 meshes 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. This drives the rotation of several condenser tubes 1010 and several heat exchange plates 1020, thereby throwing out the liquid water condensed on the surface through rotation, avoiding affecting the heat exchange efficiency of the condenser tubes 1010 and the heat exchange plates 1020.

[0049] It is important to note that, such as Figure 5 and Figure 6As shown, because the first chamber 1041 and the second chamber 1042 are provided with multiple sections, the condenser tubes 1010 are divided into multiple groups. The surface cooler outlet pipe 1100 and the surface cooler inlet pipe 1200 can only be connected to two of the groups of condenser tubes 1010. When the condenser tubes 1010 rotate relative to the sealing plate 1030, the multiple groups of condenser tubes 1010 will intermittently connect to the surface cooler outlet pipe 1100 and the surface cooler inlet pipe 1200. When the other groups of condenser tubes 1010 are not connected to the surface cooler outlet pipe 1100 and the surface cooler inlet pipe 1200, the cooling water inside the condenser tubes 1010 stops flowing and will temporarily remain inside the condenser tubes 1010. Through this arrangement, the cooling water inside the condenser tubes 1010 can fully exchange heat with the water vapor, thereby absorbing the internal temperature of the water vapor for subsequent use.

[0050] In order to enable the desalination of seawater to be carried out in a cyclical manner and to evaporate seawater using a low-potential heat source, such as Figure 1 As shown, 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 installed on the outer surface of the seawater return pipe 100, and a water supply regulating valve 400 is installed on the outer surface of the seawater supply pipe 300. A steam pipe 600 is fixedly connected between the top of the seawater tank 500 and the condensate tank 900. A steam pump 700 and a steam flow valve 800 are installed on the outer surface of the steam pipe 600. A condensate pipe 1500 is fixedly installed on the outer surface of the condensate tank 900 near the bottom, and a condensate pump 1400 is installed on the outer surface of the condensate pipe 1500. Before the system is officially put into operation, the seawater tank 500 is depressurized. After the depressurization process is completed, the water supply regulating valve 400 is opened, seawater rushes in, and the system begins to operate. Seawater from the ocean enters the seawater tank 500 through the seawater supply pipe 300 and the water supply regulating valve 400, reaching level I in the seawater tank 500 to begin operation, lowering the boiling point of the seawater and causing it to evaporate. The resulting water vapor enters the condensate tank 900 through the steam pipe 600, the steam pump 700, and the steam flow valve 800. The steam exchanges heat with the cooling water in the condenser pipe 1010 and the heat exchange fins 1020, forming 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 through the condensate pipe 1500. A level II detection system is installed in the seawater tank 500. When the seawater level is lower than the specified level, the water supply regulating valve 400, the seawater pump 200, the steam pump 700, and the steam flow valve 800 work together to maintain a stable level. This technology is a mature existing technology and will not be described in detail here.

[0051] Specifically, the seawater tank 500 is depressurized by filling it with water, manually closing the water supply regulating valve 400, and then manually turning on the seawater pump 200 and the condensate pump 1400 to drain the water from the seawater tank 500 and the condensate tank 900. At this time, the seawater tank 500 and the condensate tank 900 are under negative pressure. The monitoring of liquid levels I and II is achieved by installing sensors in the seawater tank 500. When the seawater in the tank reaches liquid level I, both sensors send signals; when the seawater in the tank reaches between liquid level I and liquid level II (including liquid level II), only one sensor sends a signal; when the seawater in the tank is below liquid level II, neither sensor sends a signal. The aforementioned signals are received every minute, and the corresponding regulating components are controlled based on the number of signals received.

[0052] Specifically, the control of the condensate pump 1400 on the condensate pipe 1500 is achieved by installing a mass sensor in the condensate tank 900 during machining. The initial value of the mass sensor is the weight of the condensate tank 900. A threshold is set for the mass sensor (e.g., the mass of the mass sensor increases by 1t), and the sensor controls the condensate pump 1400 to discharge condensate.

[0053] To allow cooling water to flow through the condenser tube 1010, the outlet end of the surface cooler outlet pipe 1100 penetrates the outer surface of the condensate tank 900, and the inlet end of the surface cooler inlet pipe 1200 penetrates the outer surface of the condensate tank 900. A surface cooler inlet pump 1300 is installed, which is connected to an external cooling water pool. After heat exchange, the cooling water flows from the outlet end of the surface cooler outlet pipe 1100 into the external heat pump system, thereby preheating the heating components of the heat pump system and allowing the waste heat of the water vapor to be utilized, reducing energy consumption.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A heat pump unit coupled to a seawater desalination plant, characterized in that, The application relates to a seawater condensing device, which comprises the following parts: a seawater tank (500) for storing seawater; a condensate tank (900) for storing condensed water; a condensing unit (1000) arranged in the condensate tank (900) and used for condensing and liquefying water vapor, wherein the condensing unit (1000) comprises a plurality of condensing pipes (1010) arranged equidistantly in the condensate tank (900), and the plurality of condensing pipes (1010) are arranged to rotate around the central axis of the condensate tank (900); a driving unit (1600) arranged on the outer surface of the condensate tank (900) and used for driving the plurality of condensing pipes (1010) to rotate around the central axis of the condensate tank (900); the condensing unit (1000) further comprises: a plurality of heat exchange fins (1020) sleeved on the outer surfaces of the plurality of condensing pipes (1010), wherein the plurality of heat exchange fins (1020) are arranged in alignment and gaps are arranged between adjacent two heat exchange fins (1020); a sealing plate (1030) fixedly installed between the inner walls of the condensate tank (900), wherein a through hole is arranged on the upper surface of the middle part of the sealing plate (1030); a sealing ring (1040) rotatably installed between the inner walls of the condensate tank (900), wherein 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), the plurality of condensing pipes (1010) are fixedly installed on the lower surface of the sealing ring (1040), and an annular groove is arranged on the upper surface of the sealing ring (1040); a plurality of partitions (1050) fixedly installed on the bottom wall of the annular groove; a circular ring (1060) fixedly installed on the bottom wall of the annular groove, wherein 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); the plurality of condensing pipes (1010) are arranged in a U shape, the two ends of the plurality of condensing pipes (1010) penetrate through the bottom wall of the annular groove on the sealing ring (1040), one end of the condensing pipe (1010) is arranged in the first cavity (1041), the other end of the condensing pipe (1010) is arranged in the second cavity (1042), and the first cavity (1041) is connected with the second cavity (1042) through the condensing pipe (1010).

2. The heat pump chiller unit coupled with seawater desalination of claim 1, wherein, 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 a circular hole (1022) is arranged at the top end of the conical shape, and the diameters of the plurality of circular holes (1022) decrease from top to bottom.

3. The heat pump chiller with coupled seawater desalination of claim 1, wherein, The upper surface of the sealing plate (1030) is fixedly installed with a surface condenser outlet pipe (1100) and a surface condenser inlet pipe (1200), both water inlet ends of the surface condenser outlet pipe (1100) penetrate the lower surface of the sealing plate (1030) and are respectively connected with two first cavities (1041), both water outlet ends of the surface condenser inlet pipe (1200) penetrate the lower surface of the sealing plate (1030) and are respectively connected with two second cavities (1042).

4. The heat pump chiller with coupled seawater desalination of claim 2, wherein, The driving unit (1600) comprises: A gear ring (1630) is fixedly installed on the lower surface of the sealing ring (1040); A gear (1620) is rotatably installed on the inner wall of the condensate tank (900), and the gear (1620) is engaged with the gear ring (1630); A driving motor (1610) is fixedly installed on the outer surface of the condensate tank (900), and the output end of the driving motor (1610) penetrates the inner wall of the condensate tank (900) and is fixedly installed with the rotation center of the gear (1620).

5. The heat pump chiller with coupled seawater desalination of claim 1, wherein, The outer surface of the seawater tank (500) near the bottom is fixedly connected with 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), and the outer surface of the seawater supply pipe (300) is provided with a water supply adjusting valve (400).

6. The heat pump chiller with coupled seawater desalination of claim 1, wherein, The top ends of the seawater tank (500) and the condensate tank (900) are fixedly connected with a steam pipe (600), the outer surface of the steam pipe (600) is provided with a steam pump (700) and a steam flow valve (800).

7. The heat pump chiller with coupled seawater desalination of claim 1, wherein, The outer surface of the condensate tank (900) near the bottom is fixedly installed with a condensate pipe (1500), and the outer surface of the condensate pipe (1500) is provided with a condensate pump (1400).

8. The heat pump chiller with coupled seawater desalination of claim 3, wherein, The water outlet end of the surface condenser outlet pipe (1100) penetrates the outer surface of the condensate tank (900), and the water inlet end of the surface condenser inlet pipe (1200) penetrates the outer surface of the condensate tank (900) and is provided with a surface condenser inlet pump (1300).

Citation Information

Patent Citations

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