Combined heat supply device
By introducing a dual filtration system of polypropylene and activated carbon filter plates into the air source heat pump, and using snap-fit components for quick disassembly, the problem of cumbersome disassembly and assembly of traditional filters is solved, improving the equipment's maintenance convenience and operational stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU YINENG PUMP IND MFG CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-12
AI Technical Summary
The condenser inlet filter of existing air source heat pumps needs to be disassembled and cleaned regularly, which makes disassembly and assembly cumbersome and reduces the convenience and efficiency of cleaning.
A combined heating and cooling device was designed, which adopts a dual filtration system consisting of polypropylene filter plates and activated carbon filter plates. The filter cartridges can be quickly disassembled and replaced through a snap-fit assembly, simplifying the maintenance process.
It improves the operability and maintenance efficiency of the equipment, ensures clean water quality, extends the equipment life, avoids clogging and scaling problems, and improves heat exchange efficiency and system stability.
Smart Images

Figure CN224226721U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of heating equipment, specifically relating to a combined heating device. Background Technology
[0002] An air source heat pump is a device that uses the heat energy in the air for heating or cooling. Its main principle is to transfer heat from a low-temperature heat source to a high-temperature environment through compression and expansion cycles, thereby achieving heat transfer and utilization. An air source heat pump consists of main components such as an evaporator, compressor, condenser, and expansion valve. The evaporator absorbs heat from the air, and the refrigerant evaporates and absorbs heat in it; the compressor compresses the gaseous refrigerant into a high-temperature and high-pressure state; the condenser releases the heat in the refrigerant into the target environment; and the expansion valve reduces the pressure of the refrigerant, allowing it to re-enter the evaporator. Air source heat pumps have a high energy efficiency ratio and can provide stable heating or cooling capacity under different environmental conditions. They are widely used in building heating, cooling, and hot water supply. Their operating efficiency is affected by the external ambient temperature, but they generally perform well under suitable climatic conditions.
[0003] In existing technologies, air source heat pumps have filters installed at the condenser inlet to filter water and reduce the accumulation and sedimentation of impurities in the condenser. However, when used for a long time, the filters need to be disassembled regularly to clean the internal filter screen in order to ensure the water filtration effect. This disassembly and assembly is cumbersome and reduces the convenience and efficiency of cleaning the air source heat pump. Therefore, a combined heating and heat supply device is proposed to solve the above problems. Utility Model Content
[0004] In view of one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides a combined heating device with the advantages of convenient maintenance, high reliability and long service life.
[0005] To achieve the above objectives, this utility model provides a combined heating and heat supply device, including an air source heat pump body;
[0006] A filter box is mounted on one side of the air source heat pump body. The lower end of the filter box is connected to a water inlet pipe, and one end of the water inlet pipe is connected to the air source heat pump body. A conveying pipe is connected to the upper end of the filter box. A polypropylene filter plate and an activated carbon filter plate are inserted into one side of the filter box, with the polypropylene filter plate located above the activated carbon filter plate. Two sets of locking components are provided at the upper end of the conveying pipe, and a filter cylinder is assembled between the two sets of locking components. Both the upper and lower ends of the filter cylinder are connected to connecting pipes, and a filter screen is installed inside. An installation pipe is sleeved on the upper end of the connecting pipe located at the upper end, and the connecting pipe located at the lower end is inserted into the conveying pipe. The two sets of locking components are respectively located at the connection points of the two connecting pipes with the conveying pipe and the installation pipe.
[0007] The engaging assembly includes a mounting cylinder with a cavity in which a chuck is mounted. Four chuck blades are mounted around the upper surface of the chuck, and each of the four chuck blades has an arc-shaped clamping element mounted on its upper end. A mounting ring is mounted on the upper end of the mounting cylinder, and an inner ring is mounted inside the mounting ring. The inner ring has threads on its inner wall, and the inner ring is connected to a threaded rod through thread engagement. The threaded rod has a through hole and an arc-shaped groove at its lower end.
[0008] As a further improvement of this utility model, the bottom of the mounting cylinder cavity is equipped with four locking blocks in a circumferential manner, and the outside of the chuck is provided with four locking slots, with the four locking blocks engaging in the four locking slots.
[0009] As a further improvement of this utility model, a valve is provided on the outside of one end of the mounting pipe.
[0010] As a further improvement of this utility model, both the polypropylene filter plate and the activated carbon filter plate are equipped with handles on one side.
[0011] As a further improvement of this utility model, the threaded rod is provided with anti-slip texture on the outside.
[0012] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:
[0013] This utility model's combined heating and cooling device utilizes the interlocking components within two sets of locking assemblies. By rotating the threaded rod, it moves upward and disengages from the four arc-shaped locking parts, allowing for quick disassembly of the filter cartridge for replacement or maintenance. This avoids the complex disassembly process of traditional methods, improving the operability and maintenance efficiency of the equipment. One side of the filter box is equipped with a polypropylene filter plate and an activated carbon filter plate. The polypropylene filter plate has excellent physical filtration effects, effectively removing larger particles and impurities from the water, while the activated carbon filter plate adsorbs organic matter and some gaseous pollutants. This dual filtration design ensures more comprehensive and efficient water filtration, guaranteeing the cleanliness of the water during air source heat pump operation and extending the equipment's lifespan. Both the polypropylene and activated carbon filter plates can be quickly disassembled and replaced easily. Effective water filtration reduces the accumulation of impurities and sediment in the water, preventing blockages or scaling problems caused by sediment buildup in the air source heat pump, ensuring more stable system operation, higher heat exchange efficiency, and maintained system energy efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall installation structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the mounting structure of the snap-fit assembly, filter cartridge, and mounting tube of this utility model;
[0016] Figure 3 This is a schematic diagram of the disassembly structure of the locking assembly and filter cartridge of this utility model;
[0017] Figure 4 This is a schematic diagram of the disassembly cross-sectional structure of the snap-fit assembly of this utility model.
[0018] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Air source heat pump body; 2. Filter box; 21. Water inlet pipe; 22. Delivery pipe; 23. Polypropylene filter plate; 24. Activated carbon filter plate; 25. Handle; 3. Clamping assembly; 30. Mounting cylinder; 301. Clamping block; 31. Clamping disc; 32. Clamping leaf; 33. Arc-shaped clamping element; 34. Mounting ring; 35. Inner ring element; 36. Threaded rod; 37. Arc-shaped groove; 4. Filter cylinder; 41. Connecting pipe; 42. Filter screen; 5. Mounting pipe; 51. Valve. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Example
[0021] Depend on Figure 1-4 A combined heating and heat supply device is provided, comprising an air source heat pump body 1;
[0022] A filter box 2 is installed on one side of the air source heat pump body 1. The lower end of the filter box 2 is connected to a water inlet pipe 21, and one end of the water inlet pipe 21 is connected to the air source heat pump body 1. The upper end of the filter box 2 is connected to a delivery pipe 22. A polypropylene filter plate 23 and an activated carbon filter plate 24 are inserted on one side of the filter box 2, with the polypropylene filter plate 23 located above the activated carbon filter plate 24. Two sets of locking components 3 are provided at the upper end of the delivery pipe 22, and a filter cylinder 4 is installed between the two sets of locking components 3. Both the upper and lower ends of the filter cylinder 4 are connected to connecting pipes 41, and a filter screen 42 is installed inside. An installation pipe 5 is sleeved on the upper end of the connecting pipe 41, and the connecting pipe 41 at the lower end is inserted into the delivery pipe 22. The two sets of locking components 3 are respectively located at the connection points of the two connecting pipes 41 with the delivery pipe 22 and the installation pipe 5.
[0023] The engaging assembly 3 includes an mounting cylinder 30, which has a cavity and a chuck 31 is mounted inside the cavity. Four leaf clips 32 are mounted around the upper end of the chuck 31. Each of the four leaf clips 32 has an arc-shaped clip 33 mounted on its upper end. An mounting ring 34 is mounted on the upper end of the mounting cylinder 30. An inner ring 35 is mounted inside the mounting ring 34 and the inner wall of the inner ring 35 is threaded. The inner ring 35 is connected to a threaded rod 36 through threaded engagement. The threaded rod 36 has a through hole and an arc-shaped groove 37 at its lower end.
[0024] In this embodiment, by the mutual cooperation between the components within the two sets of locking assemblies 3, and by rotating the threaded rod 36 to move it upward and release it from the contact with the four arc-shaped locking pieces 33, the filter cartridge 4 can be quickly disassembled for replacement or maintenance. This avoids the traditional complex disassembly process, improving the operability and maintenance efficiency of the equipment. A polypropylene filter plate 23 and an activated carbon filter plate 24 are inserted into one side of the filter box 2. The polypropylene filter plate 23 has excellent physical filtration effects, effectively removing larger particles and impurities from the water, while the activated carbon filter plate 24 can... The dual filtration design adsorbs organic matter and some gaseous pollutants from the water, making the water filtration effect more comprehensive and efficient. This ensures the cleanliness of the water during the operation of the air source heat pump body 1, extending the service life of the equipment. Both the polypropylene filter plate 23 and the activated carbon filter plate 24 can be quickly disassembled and replaced, which is also very convenient. Effective water filtration can reduce the accumulation of impurities and sediments in the water, avoiding clogging or scaling problems caused by sediment accumulation in the air source heat pump body 1. This ensures more stable system operation, higher heat exchange efficiency, and maintained energy efficiency during system operation.
[0025] Specifically, refer to Figure 4 The bottom of the mounting cylinder 30 cavity is equipped with four locking blocks 301 in a circumferential manner, and the outside of the chuck 31 is provided with four locking slots, and the four locking blocks 301 are engaged in the four locking slots.
[0026] In this embodiment, the chuck 31 is secured inside the mounting cylinder 30 by four locking blocks 301. The detachable design facilitates the subsequent disassembly and maintenance of the chuck 31 and the four locking plates 32.
[0027] Specifically, refer to Figure 1-2 A valve 51 is installed on the outside of one end of the installation pipe 5.
[0028] In this embodiment, the valve 51 is used to control the start and stop of the water flow in the installation pipe 5.
[0029] Specifically, refer to Figure 1-2 Both the polypropylene filter plate 23 and the activated carbon filter plate 24 are equipped with handles 25 on one side.
[0030] In this embodiment, the handle 25 allows the user to easily pull out the polypropylene filter plate 23 or the activated carbon filter plate 24 for maintenance and replacement.
[0031] Specifically, refer to Figure 4 The threaded rod 36 has anti-slip texture on the outside.
[0032] In this embodiment, the threaded rod 36 is provided with anti-slip texture on the outside to improve friction and make it easier for the user to rotate.
[0033] The combined heating and heat supply device of this utility model:
[0034] Step 1: In actual use, when external water is transported from the installation pipe 5, it undergoes the first filtration through the filter cartridge 4, and then flows down to the filter box 2, where it undergoes a second filtration through the polypropylene filter plate 23 and the activated carbon filter plate 24. This effectively reduces the accumulation of impurities and sediments in the water, avoids the blockage or scaling problems caused by sediment accumulation in the air source heat pump body 1, and improves the stability of the device's operation.
[0035] Step 2: When it is necessary to disassemble and replace the filter cartridge 4 for maintenance, first close the valve 51, then rotate the threaded rod 36 inside the two sets of locking components 3, so that the threaded rod 36 moves upward and cancels its contact with the four arc-shaped clips 33, thereby restoring the four clips 32 to their original position. Then slide the two sets of locking components 3 towards the mounting pipe 5 and the conveying pipe 22 respectively. Then, remove the connecting pipes 41 at both ends of the filter cartridge 4 from the connection between the mounting pipe 5 and the conveying pipe 22, and the filter cartridge 4 can be disassembled and replaced. During installation, by inserting the two connecting pipes 41 into the installation pipe 5 and the conveying pipe 22 respectively, the two sets of locking components 3 are moved to the two connection points. Then, the threaded rod 36 is rotated downwards and the four arc-shaped locking pieces 33 are pressed, so that the four locking leaves 32 are driven to move in the center, thereby tightly abutting and limiting the connection points between the connecting pipe 41 and the installation pipe 5 and between the connecting pipe 41 and the conveying pipe 22, thus realizing the installation of the filter cartridge 4. When cleaning the polypropylene filter plate 23 and the activated carbon filter plate 24, simply hold the handle 25 and pull it to one side for quick disassembly and replacement.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A combined heating and heat supply device, comprising an air source heat pump body (1), characterized in that: A filter box (2) is mounted on one side of the air source heat pump body (1). The lower end of the filter box (2) is connected to a water inlet pipe (21), and one end of the water inlet pipe (21) is connected to the air source heat pump body (1). A conveying pipe (22) is connected to the upper end of the filter box (2). A polypropylene filter plate (23) and an activated carbon filter plate (24) are inserted on one side of the filter box (2), with the polypropylene filter plate (23) located above the activated carbon filter plate (24). The upper end of the conveying pipe (22) is provided with... Two sets of locking components (3) are assembled with a filter cylinder (4) between them. The filter cylinder (4) is connected to a connecting pipe (41) at both the upper and lower ends and has a filter screen (42) inside. The upper end of the connecting pipe (41) is fitted with an installation pipe (5), and the lower end of the connecting pipe (41) is inserted into the conveying pipe (22). The two sets of locking components (3) are respectively located at the connection points of the two connecting pipes (41) with the conveying pipe (22) and the installation pipe (5). The engaging assembly (3) includes an mounting cylinder (30), which has a cavity and a chuck (31) is mounted inside the cavity. The upper surface of the chuck (31) is surrounded by four clips (32), and each of the four clips (32) is equipped with an arc-shaped clip (33) at its upper end. The upper end of the mounting cylinder (30) is equipped with an mounting ring (34), and the mounting ring (34) is equipped with an inner ring (35) inside the inner ring (35) and the inner wall of the inner ring (35) is threaded. The inner ring (35) is connected to a threaded rod (36) by thread engagement. The threaded rod (36) has a through hole and an arc-shaped groove (37) at its lower end.
2. The combined heating and heat supply device according to claim 1, characterized in that, The bottom of the mounting cylinder (30) is fitted with four locking blocks (301) in a circumferential manner, and the outside of the chuck (31) is provided with four locking slots, and the four locking blocks (301) are engaged in the four locking slots.
3. The combined heating and heat supply device according to claim 1, characterized in that, A valve (51) is provided on the outside of one end of the installation pipe (5).
4. The combined heating and heat supply device according to claim 1, characterized in that, Both the polypropylene filter plate (23) and the activated carbon filter plate (24) are equipped with a handle (25) on one side.
5. The combined heating and heat supply device according to claim 1, characterized in that, The threaded rod (36) has anti-slip texture on the outside.