A cycle air source heat pump

Abstract

This utility model discloses a circulating air source heat pump, comprising: an installation box, inside which a water storage tank is installed, and a circulating delivery pipe is inserted into the water storage tank. One end of the circulating delivery pipe extends out of the water storage tank and is connected to a compressor. One end of the compressor is connected to an evaporator, and one end of the evaporator is connected to a magnetic pump. One end of the magnetic pump is connected to an electronic expansion valve, and one end of the electronic expansion valve is connected to the other end of the circulating delivery pipe. A cold water inlet pipe and a hot water outlet pipe are fixedly connected to one side of the water storage tank. A filter box is detachably installed on the cold water inlet pipe. The filter box contains a first filter plate, a second filter plate, and a third filter plate. Through three layers of filtration, the water entering the water storage tank is effectively purified, preventing impurities in the water from adhering to the outer wall of the circulating delivery pipe and affecting the normal heat exchange of the circulating delivery pipe, thus ensuring the normal operation of the circulating air source heat pump.

Description

Technical Field

[0001] This utility model relates to the field of air source heat pump technology, specifically a circulating air source heat pump. Background Technology

[0002] An air source heat pump is an energy-saving device that uses high-grade energy to move heat from a low-grade heat source, air, to a high-grade heat source.

[0003] Chinese patent publication number CN221744359U discloses a circulating air source heat pump, including a fixed plate. A limiting groove is formed on one side of the fixed plate, and an electric lifting rod is fixedly installed inside the limiting groove. A support plate is fixedly installed at one end of the electric lifting rod.

[0004] The aforementioned patents can solve the corresponding technical problems, enabling air source heat pumps to perform circulating heating. However, the aforementioned circulating air source heat pumps still have drawbacks during use:

[0005] The aforementioned circulating air source heat pump delivers water to the storage tank through the inlet pipe. However, there is no water filtration mechanism installed on the delivery pipeline. Over time, the outer wall of the circulating pipe used for heat exchange is prone to a large amount of scale and other impurities, which will reduce the heat exchange efficiency of the circulating pipe and thus affect the performance of the circulating air source heat pump. Utility Model Content

[0006] The purpose of this invention is to provide a circulating air source heat pump that solves the problem that existing circulating air source heat pumps deliver water to the storage tank through an inlet pipe, but there is no water filtration mechanism in the delivery pipeline. Over time, the outer wall of the circulating pipe used for heat exchange is prone to a large amount of scale and other impurities, which will reduce the heat exchange efficiency of the circulating pipe and thus affect the performance of the circulating air source heat pump.

[0007] To achieve the above objectives, the main technical solution adopted by this utility model includes: a circulating air source heat pump, comprising: an installation box, a water storage tank installed inside the installation box, a circulating delivery pipe inserted inside the water storage tank, one end of the circulating delivery pipe extending outside the water storage tank and connected to a compressor, one end of the compressor connected to an evaporator, one end of the evaporator connected to a magnetic pump, one end of the magnetic pump connected to an electronic expansion valve, one end of the electronic expansion valve connected to the other end of the circulating delivery pipe, a cold water inlet pipe and a hot water outlet pipe fixedly connected to one side of the water storage tank, one end of the cold water inlet pipe and the hot water outlet pipe extending to the outside of the installation box respectively, a filter box detachably installed on the cold water inlet pipe, the filter box having a first filter plate, a second filter plate and a third filter plate inside, the first filter plate located at the water inlet of the filter box, the third filter plate located at the water outlet of the filter box, and the second filter plate located between the first filter plate and the third filter plate.

[0008] As a preferred technical solution, the top of the filter box is provided with multiple insertion holes, and the first filter plate, the second filter plate and the third filter plate are respectively fitted into each of the insertion holes, and the bottom of the first filter plate, the second filter plate and the third filter plate are respectively in contact with the inner bottom of the filter box.

[0009] As a preferred technical solution, the first filter plate is a stainless steel filter screen plate, the second filter plate is a PP cotton filter plate, and the third filter plate is a ceramic filter element plate.

[0010] As a preferred technical solution, the bottom of the filter box is threadedly connected to a sedimentation cylinder, the interior of the sedimentation cylinder is in communication with the interior of the filter box, and the sedimentation cylinder is located on the rear side of the water-facing surface of the first filter plate.

[0011] As a preferred technical solution, the filter box is fixedly connected to the cold water inlet pipe by a first bolt;

[0012] The first filter plate, the second filter plate, and the third filter plate are respectively fixedly connected to the filter box by a second bolt, which is a handle bolt.

[0013] As a preferred technical solution, valves are fixedly installed on the cold water inlet pipes at both ends of the filter box.

[0014] As a preferred technical solution, the outer wall of the circulating conveying pipe located inside the water storage tank is coated with a protective coating, which is a graphene coating.

[0015] This utility model has at least the following beneficial effects:

[0016] This utility model provides a circulating air source heat pump. By installing a filter box on the cold water inlet pipe, the first filter plate can intercept larger particles of impurities in the water. Then, the second filter plate can further filter out colloids and fine suspended solids in the water. Finally, the third filter plate can remove tiny impurities such as calcium and magnesium compounds that may cause scale formation. The water that has passed through three layers of filtration enters the water storage tank. The three-layer filtration effectively purifies the water entering the water storage tank, preventing impurities in the water from adhering to the outer wall of the circulating delivery pipe and affecting the normal heat exchange of the circulating delivery pipe, thus ensuring the normal operation of the circulating air source heat pump.

[0017] During the filtration process, larger particles of impurities intercepted by the first filter plate gradually settle into the sedimentation tank under the action of water flow. By periodically disassembling the sedimentation tank, these settled impurities can be easily cleaned, preventing excessive accumulation of impurities in the filter box from affecting the filtration effect and the smoothness of water flow.

[0018] The protective coating of graphene can form a smooth protective layer at the heat exchange part of the circulating conveying pipe, making it difficult for calcium and magnesium ions in the water to deposit and crystallize on its surface to form scale, thus ensuring normal heat exchange of the circulating conveying pipe. In addition, graphene has excellent thermal conductivity, which can improve heat exchange efficiency. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a three-dimensional view of the circulating air source heat pump of this utility model;

[0021] Figure 2 This utility model Figure 1 Enlarged schematic diagram of section A in the middle;

[0022] Figure 3 This is a cross-sectional view of the mounting box of the circulating air source heat pump of this utility model;

[0023] Figure 4 This is a cross-sectional view of the filter box of the circulating air source heat pump of this utility model.

[0024] Explanation of icon numbers:

[0025] 1. Mounting box; 2. Water storage tank; 201. Cold water inlet pipe; 202. Hot water outlet pipe; 3. Circulation conveying pipe; 301. Magnetic pump; 302. Electronic expansion valve; 303. Protective coating; 4. Compressor; 5. Evaporator; 6. Filter box; 601. Sedimentation cylinder; 602. First bolt; 603. Second bolt; 7. First filter plate; 8. Second filter plate; 9. Third filter plate; 10. Valve. Detailed Implementation

[0026] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0027] Example

[0028] Please refer to Figures 1 to 4 As shown, this embodiment provides a circulating air source heat pump, including: a mounting box 1, a water storage tank 2 installed inside the mounting box 1, a circulating delivery pipe 3 inserted inside the water storage tank 2, one end of the circulating delivery pipe 3 extending outside the water storage tank 2 and connected to a compressor 4, one end of the compressor 4 connected to an evaporator 5, one end of the evaporator 5 connected to a magnetic pump 301, one end of the magnetic pump 301 connected to an electronic expansion valve 302, one end of the electronic expansion valve 302 connected to the other end of the circulating delivery pipe 3, and a cold water inlet pipe 201 and a hot water outlet pipe 202 fixedly connected to one side of the water storage tank 2 respectively. One end of pipe 202 extends to the outside of mounting box 1. A filter box 6 is detachably installed on the cold water inlet pipe 201. The filter box 6 is equipped with a first filter plate 7, a second filter plate 8, and a third filter plate 9. The first filter plate 7 is located at the water inlet of the filter box 6, the third filter plate 9 is located at the water outlet of the filter box 6, and the second filter plate 8 is located between the first filter plate 7 and the third filter plate 9. Through three layers of filtration, the water entering the water storage tank 2 is effectively purified, preventing impurities in the water from adhering to the outer wall of the circulation conveying pipe 3 and affecting the normal heat exchange of the circulation conveying pipe 3, thus ensuring the normal operation of the circulating air source heat pump.

[0029] The filter box 6 has multiple insertion holes on its top. The first filter plate 7, the second filter plate 8, and the third filter plate 9 are respectively inserted into each insertion hole, and the bottom of the first filter plate 7, the second filter plate 8, and the third filter plate 9 are in contact with the inner bottom of the filter box 6. The insertion hole design on the top of the filter box 6 facilitates the installation and removal of the first filter plate 7, the second filter plate 8, and the third filter plate 9. The insertion method ensures the stability of the filter plates after installation, and the bottom of each filter plate is in contact with the inner bottom of the filter box 6, ensuring that the water flow can be fully filtered through each filter plate.

[0030] The first filter plate 7 is a stainless steel filter screen, the second filter plate 8 is a PP cotton filter plate, and the third filter plate 9 is a ceramic filter element plate. The first filter plate 7, with its stainless steel filter screen, can intercept larger particles of impurities in the water, such as silt, rust fragments, and some large suspended particles. The second filter plate 8, with its PP cotton structure, can further intercept and filter relatively smaller particles of impurities in the water. The third filter plate 9, with its ceramic filter element structure, can remove residual tiny particles in the water as well as some calcium and magnesium compounds that may cause scale formation.

[0031] The bottom of the filter box 6 is threadedly connected to a sedimentation cylinder 601, which is connected to the interior of the filter box 6. The sedimentation cylinder 601 is located behind the water-facing side of the first filter plate 7. During the filtration process, larger particles of impurities intercepted by the first filter plate 7 will gradually settle into the sedimentation cylinder 601 under the action of water flow. By periodically disassembling the sedimentation cylinder 601, these settled impurities can be easily cleaned, preventing excessive accumulation of impurities in the filter box 6 from affecting the filtration effect and the smoothness of water flow.

[0032] The filter box 6 is fixedly connected to the cold water inlet pipe 201 by the first bolt 602; the first filter plate 7, the second filter plate 8 and the third filter plate 9 are fixedly connected to the filter box 6 by the second bolt 603. The second bolt 603 is a handle bolt. The first bolt 602 facilitates the disassembly and maintenance of the entire filter box 6, and the second bolt 603 facilitates the individual disassembly and cleaning of the first filter plate 7, the second filter plate 8 and the third filter plate 9, thereby improving maintenance efficiency.

[0033] Valves 10 are fixedly installed on the cold water inlet pipes 201 at both ends of the filter box 6. By fixing valves 10 on the cold water inlet pipes 201 at both ends, the flow of water can be flexibly controlled. This allows for the interruption of water flow when performing maintenance or replacing filter plates on the filter box 6, thus avoiding affecting the normal operation of the entire heat pump system.

[0034] The outer wall of the circulating conveying pipe 3 located inside the water storage tank 2 is coated with a protective coating 303, which is a graphene coating. The graphene protective coating 303 can form a smooth protective layer at the heat exchange part of the circulating conveying pipe 3, making it difficult for calcium, magnesium and other ions in the water to deposit and crystallize on its surface to form scale, thus ensuring the normal heat exchange of the circulating conveying pipe 3. In addition, graphene has excellent thermal conductivity, which can improve heat exchange efficiency.

[0035] Working principle:

[0036] Cold water enters the water storage tank 2 through the cold water inlet pipe 201. A filter box 6 is installed on the cold water inlet pipe 201. The first filter plate 7 is a stainless steel mesh plate, which first intercepts larger particles of impurities in the water, such as silt and rust. Then, the water passes through the second filter plate 8, a PP cotton filter plate, which further filters out colloids and fine suspended solids in the water. Finally, the water passes through the third filter plate 9, a ceramic filter element plate, which removes tiny impurities in the water, such as calcium and magnesium compounds that may cause scale formation. The water, after three layers of filtration, enters the water storage tank 2. The water entering the storage tank 2 is effectively purified through a three-layer filtration system, preventing impurities in the water from adhering to the surface of the circulation conveying pipe 3 and affecting its normal heat exchange. In addition, by applying a graphene protective coating 303 to the outer wall of the part of the circulation conveying pipe 3 located inside the storage tank 2, a smooth protective layer is formed at the heat exchange part of the circulation conveying pipe 3, making it difficult for calcium, magnesium and other ions in the water to deposit and crystallize on its surface to form scale, thus ensuring the normal heat exchange of the circulation conveying pipe 3. Furthermore, graphene has excellent thermal conductivity, which further improves the heat exchange efficiency.

[0037] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A circulating air source heat pump, comprising an installation box (1), wherein a water storage tank (2) is installed inside the installation box (1), a circulating delivery pipe (3) is inserted into the water storage tank (2), one end of the circulating delivery pipe (3) extends out of the water storage tank (2) and is connected to a compressor (4), one end of the compressor (4) is connected to an evaporator (5), one end of the evaporator (5) is connected to a magnetic pump (301), one end of the magnetic pump (301) is connected to an electronic expansion valve (302), one end of the electronic expansion valve (302) is connected to the other end of the circulating delivery pipe (3), characterized in that: A cold water inlet pipe (201) and a hot water outlet pipe (202) are fixedly connected to one side of the water storage tank (2). One end of the cold water inlet pipe (201) and the hot water outlet pipe (202) extend to the outside of the mounting box (1). A filter box (6) is detachably installed on the cold water inlet pipe (201). The filter box (6) is provided with a first filter plate (7), a second filter plate (8) and a third filter plate (9). The first filter plate (7) is located at the water inlet of the filter box (6), the third filter plate (9) is located at the water outlet of the filter box (6), and the second filter plate (8) is located between the first filter plate (7) and the third filter plate (9).

2. A cycle air source heat pump as claimed in claim 1, wherein: The top of the filter box (6) is provided with multiple insertion holes. The first filter plate (7), the second filter plate (8) and the third filter plate (9) are respectively fitted into each of the insertion holes, and the bottom of the first filter plate (7), the second filter plate (8) and the third filter plate (9) are respectively in contact with the inner bottom of the filter box (6).

3. A cycle air source heat pump as claimed in claim 2, wherein: The first filter plate (7) is a stainless steel filter plate, the second filter plate (8) is a PP cotton filter plate, and the third filter plate (9) is a ceramic filter plate.

4. A cycle air source heat pump as claimed in claim 2, wherein: The bottom of the filter box (6) is threadedly connected to a sedimentation cylinder (601), the interior of which is connected to the interior of the filter box (6), and the sedimentation cylinder (601) is located on the rear side of the water-facing surface of the first filter plate (7).

5. A cycle air source heat pump as claimed in claim 4, wherein: The filter box (6) is fixedly connected to the cold water inlet pipe (201) by the first bolt (602); The first filter plate (7), the second filter plate (8) and the third filter plate (9) are respectively fixedly connected to the filter box (6) by the second bolt (603), and the second bolt (603) is a handle bolt.

6. A cycle air source heat pump as claimed in claim 5, wherein: Valves (10) are fixedly installed on the cold water inlet pipes (201) at both ends of the filter box (6).

7. A cycle air source heat pump as claimed in any one of claims 1 to 6, wherein: The circulating conveying pipe (3) is coated with a protective coating (303) on the outer wall of the inner part of the water storage tank (2), and the protective coating (303) is a graphene coating.

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