Low temperature anti-icing air source heat pump
By installing a filter box and a temperature sensor heating ring in the air source heat pump, the problem of impurity accumulation in the water is solved, achieving effective impurity filtration and preventing icing, thus ensuring the normal operation and lifespan of the air source heat pump.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG CHENDONG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-07
AI Technical Summary
During the operation of existing air source heat pumps, impurities in the water accumulate in the condenser, which reduces the condenser's water flow efficiency and heat exchange efficiency, thus affecting its performance.
An air source heat pump is equipped with a filter box containing a filter cartridge and filter holes to filter circulating water. Combined with a temperature sensor and an electric heating ring, the circulating water is monitored and heated to prevent freezing, impurity accumulation, and pipe rupture.
It effectively filters impurities, prevents condenser blockage, ensures the normal operation of the air source heat pump, avoids low-temperature icing, and extends equipment life.
Smart Images
Figure CN224470511U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air source heat pump technology, and in particular to a low-temperature anti-icing air source heat pump. Background Technology
[0002] An air source heat pump is an energy-saving device that uses high-grade energy to transfer heat from a low-grade heat source to a high-grade heat source. Air, as the low-grade heat source of the heat pump, can convert low-grade heat energy (such as the heat contained in air, soil, and water) that cannot be directly used into usable high-grade heat energy, thereby saving some high-grade energy (such as coal, gas, oil, and electricity). However, current air source heat pumps have difficulty filtering impurities in water. With prolonged use, the accumulation and precipitation of impurities in the water in the condenser can easily lead to a decrease in the condenser's water flow efficiency and heat exchange efficiency, affecting the use of the air source heat pump.
[0003] A search revealed a Chinese patent (authorization announcement number CN216744926U) that discloses an air source heat pump, which includes a heat pump housing. A cold water injection pipe and a hot water discharge pipe are connected to the heat pump housing. A filter assembly for filtering the water is provided on the cold water injection pipe. This patented technology reduces the accumulation and precipitation of impurities in the water in the condenser, thereby improving the performance of the air source heat pump. While existing technologies may already have solutions to the above problems, this application aims to provide an alternative or replacement technical solution. Utility Model Content
[0004] In view of the above-mentioned problems existing in the prior art, the main purpose of this utility model is to provide a low-temperature anti-icing air source heat pump.
[0005] The technical solution of this utility model is as follows: a low-temperature anti-icing air source heat pump includes an air source heat pump body, a filter box is provided on the outside of the air source heat pump body, a water passage groove is opened inside the filter box, a cold water inlet pipe is fixedly connected to the side of the filter box near the air source heat pump body, a water inlet pipe is fixedly connected to the side of the filter box away from the cold water inlet pipe, a filter cylinder is placed on the inner wall of the water passage groove, the filter cylinder has filter holes arrayed inside, the water inlet pipe, the cold water inlet pipe and the interior of the water passage groove are interconnected, the filter cylinder is in contact with the inner wall of the water passage groove, and a lifting ring is fixedly connected to the top of the filter box.
[0006] By adopting the above technical solution, the circulating water will enter the water passage in the filter box through the water inlet pipe, and then come into contact with the filter cartridge. In this way, the filter holes on the filter cartridge can be used to filter the circulating water, thereby reducing the accumulation of impurities in the condenser.
[0007] In a preferred embodiment, anti-icing components are provided on the outer sides of both the cold water inlet pipe and the water inlet pipe body. The anti-icing components include insulation cotton sleeves fitted around the outer periphery of the cold water inlet pipe and the water inlet pipe body, and temperature sensors are embedded in the outer periphery of the cold water inlet pipe and the water inlet pipe body.
[0008] By adopting the above technical solution and setting up temperature sensors, the temperature of circulating water in the cold water inlet pipe and the inlet pipe can be monitored.
[0009] In a preferred embodiment, the anti-icing assembly further includes electrically heated rings that are equidistantly fixed inside the cold water inlet pipe and the inlet pipe body, and a controller is fixedly installed at one end of the top of the filter box.
[0010] By adopting the above technical solution, the electric heating ring that allows cold water to enter the pipe can be activated by the controller, thereby achieving the purpose of heating the circulating water.
[0011] In a preferred embodiment, the lifting ring is provided with a sealing assembly inside. The sealing assembly includes a cover plate hinged to the top of the lifting ring, a sealing ring fixedly connected to the inner wall of the cover plate, and a sealing groove that cooperates with the sealing ring inside the lifting ring.
[0012] By adopting the above technical solution, the sealing performance between the lifting ring and the cover plate can be improved through the coordinated cooperation of the sealing ring and the sealing groove, thus preventing leakage of circulating water from the lifting ring.
[0013] In a preferred embodiment, the air source heat pump body is provided with an inlet water port on the side near the filter box, and a connecting flange is provided between the inlet water port and the cold water inlet pipe, and the inlet water port and the cold water inlet pipe are connected by the connecting flange.
[0014] By adopting the above technical solution and setting the connecting flange, the cold water inlet pipe at the filter box can be connected to the water inlet on the air source heat pump body.
[0015] In a preferred embodiment, a hot water drain pipe is fixedly installed on the front side of the air source heat pump body, and a handle is fixedly connected to the outer side of the cover plate.
[0016] By adopting the above technical solution, workers can lift the cover plate.
[0017] In a preferred embodiment, both the electric heating ring and the temperature sensor are electrically connected to the controller, and a pull-out component is fixedly connected to the top of the filter cartridge.
[0018] By adopting the above technical solution, it is convenient to remove the filter cartridge from the water tank.
[0019] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0020] 1. In this utility model, during the use of the air source heat pump body, circulating water enters the water channel in the filter box through the water inlet pipe, and then comes into contact with the filter cartridge. The filter holes on the filter cartridge can be used to filter the circulating water, thereby reducing the accumulation of impurities in the water in the condenser. Subsequently, the filtered circulating water enters the interior of the air source heat pump body through the cold water inlet pipe, while the impurities are collected in the filter cartridge. By opening the cover on the lifting ring, the filter residue can be easily cleaned by the staff, and the filter cartridge can be easily replaced and maintained, thereby achieving the best performance of the air source heat pump body.
[0021] 2. In this utility model, by setting a temperature sensor, the temperature of the circulating water in the cold water inlet pipe and the inlet pipe can be monitored. When the monitored temperature is lower than the preset value of the temperature sensor, the controller controls the electric heating ring in the cold water inlet pipe to start, thereby achieving the purpose of heating the circulating water. This can prevent the circulating water from freezing in the low temperature environment, thus avoiding pipe rupture and ensuring the normal use of the air source heat pump body. Attached Figure Description
[0022] Figure 1 This utility model provides an overall three-dimensional view of a low-temperature anti-icing air source heat pump;
[0023] Figure 2 A partial schematic diagram of a low-temperature anti-icing air source heat pump provided by this utility model;
[0024] Figure 3 This utility model provides a schematic diagram of an anti-icing component for a low-temperature anti-icing air source heat pump;
[0025] Figure 4 This invention provides a schematic diagram of the internal structure of the filter box of a low-temperature anti-icing air source heat pump.
[0026] Legend: 1. Air source heat pump body; 2. Filter box; 3. Controller; 4. Cold water inlet pipe; 5. Water inlet pipe body; 6. Lifting ring; 7. Sealing groove; 8. Sealing ring; 9. Filter cylinder; 10. Filter holes; 11. Insulation cotton sleeve; 12. Electric heating ring; 13. Temperature sensor; 14. Water passage groove; 15. Cover plate; 16. Hot water drain pipe; 17. Connecting flange; 18. Water inlet. Detailed Implementation
[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0028] Reference Figure 1-4 A low-temperature anti-icing air source heat pump includes an air source heat pump body 1, a filter box 2 disposed on the outside of the air source heat pump body 1, a water channel 14 opened inside the filter box 2, a cold water inlet pipe 4 fixedly connected to the side of the filter box 2 near the air source heat pump body 1, and a water inlet pipe body 5 fixedly connected to the side of the filter box 2 away from the cold water inlet pipe 4. A filter cylinder 9 is placed on the inner wall of the water channel 14, and filter holes 10 are arrayed inside the filter cylinder 9. The water inlet pipe body 5, the cold water inlet pipe 4 and the interior of the water channel 14 are interconnected. The filter cylinder 9 is in contact with the inner wall of the water channel 14. A lifting ring 6 is fixedly connected to the top of the filter box 2. 1. During use, circulating water enters the water channel 14 in the filter box 2 through the inlet pipe 5, and then comes into contact with the filter cartridge 9. The filter holes 10 on the filter cartridge 9 are used to filter the circulating water, thereby reducing the accumulation of impurities in the condenser. Subsequently, the filtered circulating water enters the air source heat pump body 1 through the cold water inlet pipe 4, while the impurities are collected in the filter cartridge 9. By opening the cover plate 15 on the lifting ring 6, the filter residue can be easily cleaned by the staff, and the filter cartridge 9 can be easily replaced and maintained, thereby achieving the best performance of the air source heat pump body 1.
[0029] Specifically, anti-icing components are installed on the outside of both the cold water inlet pipe 4 and the inlet pipe body 5. These anti-icing components include an insulation cotton sleeve 11 fitted around the outside of the cold water inlet pipe 4 and the inlet pipe body 5. A temperature sensor 13 is installed to monitor the temperature of the circulating water inside the cold water inlet pipe 4 and the inlet pipe body 5. The temperature sensor 13 is embedded within the outer periphery of the cold water inlet pipe 4 and the inlet pipe body 5. The anti-icing components also include electrically heated rings 12 fixedly installed at equal intervals inside the cold water inlet pipe 4 and the inlet pipe body 5. A controller 3 is fixedly installed at one end of the top of the filter box 2. When the monitored temperature is lower than the preset value of the temperature sensor 13, the controller 3 controls the cold water inlet pipe 4... The internal electric heating ring 12 is activated, thereby heating the circulating water and preventing it from freezing in low-temperature environments. This also prevents pipe rupture and ensures the normal operation of the air source heat pump body 1. The lifting ring 6 has a sealing assembly inside, which includes a cover plate 15 hinged to the top of the lifting ring 6. Through the cooperation of the sealing ring 8 and the sealing groove 7, the sealing performance between the lifting ring 6 and the cover plate 15 can be improved, preventing the circulating water from leaking from the lifting ring 6. The inner wall of the cover plate 15 is fixedly connected to the sealing ring 8, and the inside of the lifting ring 6 has a sealing groove 7 that cooperates with the sealing ring 8.
[0030] Specifically, an inlet 18 is provided on the side of the air source heat pump body 1 near the filter box 2. A connecting flange 17 is provided between the inlet 18 and the cold water inlet pipe 4. The connecting flange 17 allows the cold water inlet pipe 4 at the filter box 2 to be connected to the inlet 18 on the air source heat pump body 1. The inlet 18 and the cold water inlet pipe 4 are connected by the connecting flange 17. A hot water drain pipe 16 is fixedly installed on the front side of the air source heat pump body 1. A handle is fixedly connected to the outside of the cover plate 15 so that the operator can lift the cover plate 15. The electric heating ring 12 and the temperature sensor 13 are electrically connected to the controller 3. The controller 3 can control the electric heating ring 12 and the temperature sensor 13 to start and stop. A pull-out piece is fixedly connected to the top of the filter cylinder 9 so that the filter cylinder 9 in the water tank 14 can be easily removed.
[0031] Working principle: First, during operation, circulating water from the air source heat pump body 1 enters the water channel 14 in the filter box 2 through the inlet pipe 5, and then comes into contact with the filter cartridge 9. The filter holes 10 on the filter cartridge 9 filter the circulating water, reducing the accumulation of impurities in the condenser. Subsequently, the filtered circulating water enters the interior of the air source heat pump body 1 through the cold water inlet pipe 4, while impurities are collected in the filter cartridge 9. The temperature sensor 13 monitors the temperature of the circulating water in the cold water inlet pipe 4 and the inlet pipe 5. The system monitors the temperature, and when the monitored temperature is lower than the preset value of the temperature sensor 13, the controller 3 activates the electric heating ring 12 in the cold water inlet pipe 4. This allows the electric heating ring 12 to heat the circulating water, preventing the circulating water from freezing in low-temperature environments and thus avoiding pipe rupture. By pulling the handle on the cover plate 15 and opening the lifting ring 6, staff can easily remove the filter cartridge 9 from the water tank 14 and clean the filter residue. This also facilitates the replacement and maintenance of the filter cartridge 9, thereby achieving the best performance of the air source heat pump body 1.
[0032] In the description of this utility model, 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0033] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A low-temperature anti-icing air source heat pump, comprising an air source heat pump body (1), characterized in that: A filter box (2) is provided on the outside of the air source heat pump body (1). A water channel (14) is provided inside the filter box (2). A cold water inlet pipe (4) is fixedly connected to the side of the filter box (2) close to the air source heat pump body (1). A water inlet pipe (5) is fixedly connected to the side of the filter box (2) away from the cold water inlet pipe (4). A filter cylinder (9) is placed on the inner wall of the water channel (14). Filter holes (10) are arranged inside the filter cylinder (9). The water inlet pipe (5), the cold water inlet pipe (4) and the water channel (14) are interconnected. The filter cylinder (9) is attached to the inner wall of the water channel (14). A lifting ring (6) is fixedly connected to the top of the filter box (2).
2. The low-temperature anti-icing air source heat pump according to claim 1, characterized in that: Anti-icing components are provided on the outside of the cold water inlet pipe (4) and the water inlet pipe body (5). The anti-icing components include a heat insulation cotton sleeve (11) sleeved on the outside of the cold water inlet pipe (4) and the water inlet pipe body (5). A temperature sensor (13) is embedded in the outside of the cold water inlet pipe (4) and the water inlet pipe body (5).
3. A low-temperature anti-icing air source heat pump according to claim 2, characterized in that: The anti-icing assembly also includes an electric heating ring (12) that is fixedly installed at equal intervals inside the cold water inlet pipe (4) and the water inlet pipe body (5), and a controller (3) is fixedly installed at one end of the top of the filter box (2).
4. A low-temperature anti-icing air source heat pump according to claim 1, characterized in that: The lifting ring (6) is provided with a sealing assembly inside. The sealing assembly includes a cover plate (15) hinged to the top of the lifting ring (6). A sealing ring (8) is fixedly connected to the inner wall of the cover plate (15). A sealing groove (7) is opened inside the lifting ring (6) to cooperate with the sealing ring (8).
5. A low-temperature anti-icing air source heat pump according to claim 1, characterized in that: The air source heat pump body (1) is provided with an inlet (18) on the side near the filter box (2). A connecting flange (17) is provided between the inlet (18) and the cold water inlet pipe (4). The inlet (18) and the cold water inlet pipe (4) are connected by the connecting flange (17).
6. A low-temperature anti-icing air source heat pump according to claim 4, characterized in that: A hot water drain pipe (16) is fixedly installed on the front side of the air source heat pump body (1), and a handle is fixedly connected to the outside of the cover plate (15).
7. A low-temperature anti-icing air source heat pump according to claim 3, characterized in that: The electric heating ring (12) and temperature sensor (13) are both electrically connected to the controller (3), and a pull-out piece is fixedly connected to the top of the filter cylinder (9).