Sewage purification device of ground source heat pump
By using an electric cylinder to drive a cleaning disc to scrape away impurities from the filter screen in a ground source heat pump wastewater purification device, the problem of filter screen clogging is solved, ensuring filtration efficiency, extending system life, and improving heat pump performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-31
AI Technical Summary
When existing ground source heat pumps purify groundwater, impurities gradually accumulate on the filter screen, causing pore blockage, which reduces the filtration effect and affects water cleanliness and system efficiency.
A ground source heat pump wastewater purification device was designed, which includes a filtration and impurity removal mechanism. An electric cylinder drives a cleaning disc to scrape off impurities from the inner wall of the filter cylinder, and the impurities are automatically discharged through a solenoid valve to maintain the filter screen in optimal working condition.
It effectively avoids filter clogging, maintains filtration efficiency, extends system life, improves the heating and cooling effect of the heat pump, and ensures temperature control performance.
Smart Images

Figure CN224056863U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of ground source heat pump technology, specifically relating to a ground source heat pump wastewater purification device. Background Technology
[0002] A ground source heat pump is a renewable energy system that provides heating, cooling, and hot water by utilizing the Earth's natural temperature differences. It uses geothermal sources such as underground soil, rock formations, or water bodies as heat exchange media to transfer and exchange heat between different seasons.
[0003] When a ground source heat pump is operating and extracting groundwater, the water usually needs to be purified to a certain extent. This is because impurities, minerals, or harmful substances in the groundwater may affect the operating efficiency and lifespan of the ground source heat pump system. However, when existing ground source heat pumps further purify the water, impurities gradually accumulate on the filter screen over time, causing the filter pores to become clogged. This gradually reduces the filtration effect, making it unable to effectively remove impurities from the water, affecting the cleanliness of the water, and thus leading to a decrease in the efficiency of the heat pump system. Utility Model Content
[0004] The purpose of this invention is to provide a ground source heat pump wastewater purification device that can automatically clean impurities that have been filtered and accumulated on the filter screen, ensuring that the filter screen is always in optimal working condition, effectively preventing filter screen blockage, maintaining filtration efficiency, ensuring water quality cleanliness, and extending the service life of the heat pump system and other key components.
[0005] The specific technical solution adopted by this utility model is as follows:
[0006] A ground source heat pump wastewater purification device includes a heat pump body and a purification device housing. The purification device housing is installed inside the heat pump body, and a filtration and impurity removal mechanism is provided inside the purification device housing. The filtration and impurity removal mechanism includes: an inlet pipe, one end of which is connected to the bottom of the purification device housing, and the other end of which extends to the rear side of the heat pump body; an outlet pipe, one end of which is connected to one side of the purification device housing, and the other end of which extends to the outside of the heat pump body; a drain pipe, one end of which is connected to the top of one side of the purification device housing, and the other end of which extends to the outside of the heat pump body; a solenoid valve, which is installed at the end of the drain pipe; a filter cartridge, which is installed inside the purification device housing; an electric cylinder, which is fixedly installed on the top of the purification device housing, the output end of the bottom of the electric cylinder extending to the inside of the purification device housing, and the top of the electric cylinder extending to the top of the heat pump body; and a cleaning disc, which is fixedly installed on the output end of the bottom of the electric cylinder, and the cleaning disc is disposed inside the purification device housing.
[0007] Preferably, a scraper is fixedly connected to the side surface of the cleaning disc, the scraper is made of elastic material, and the diameter of the cleaning disc is adapted to the filter cartridge.
[0008] Preferably, a guide bucket is fixedly connected to the bottom of the inner wall of the purification device housing, and the guide bucket is a cone shape that is narrow at the bottom and wide at the top.
[0009] Preferably, the drain pipe is located at the top of the filter cylinder, and a tapered pipe is fixedly connected to the inner wall of the drain pipe.
[0010] Preferably, a filter screen is connected to the end of the inner wall of the water outlet pipe, and the filter screen is made of stainless steel.
[0011] Preferably, the top of the cleaning tray has holes that extend to the bottom of the cleaning tray, and there are several holes that are evenly distributed on the bottom of the cleaning tray.
[0012] The technical effects achieved by this utility model are as follows:
[0013] In this invention, when using the heat pump body, groundwater enters the purification device housing through the inlet pipe. The groundwater then passes through the filter cartridge, purifying impurities. The filtered water is then discharged through the outlet pipe. Over time, impurities accumulate on the inner wall of the filter cartridge, affecting the purification device's efficiency. The operator can then operate an electric cylinder, which pushes a cleaning disc downwards to scrape off the accumulated impurities from the filter cartridge's inner wall. After the impurities are removed, the electric cylinder is shut off. This will cause the cleaning disc to move upwards, simultaneously energizing the solenoid valve and opening the valve body. The cleaned impurities and wastewater will then be automatically discharged from the inside of the purification device housing through the drain pipe. This process automatically cleans the impurities that accumulate on the inner wall of the filter cartridge, ensuring that the filter screen is always in optimal working condition, effectively preventing filter screen blockage, maintaining filtration efficiency, and ensuring smooth water flow. This prevents the water flow speed from being affected by filter cartridge blockage or sediment, thereby ensuring the heat transfer efficiency of the system. This helps to improve the heating and cooling effect of the heat pump body and ensure comfortable temperature control performance. Attached Figure Description
[0014] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a three-dimensional sectional view of the front section of the purification device housing of this utility model;
[0016] Figure 3 This is a three-dimensional schematic diagram showing the disassembled sewage pipe and conical pipe of this utility model.
[0017] The attached diagram lists the components represented by each number as follows:
[0018] 1. Heat pump body; 2. Purification device housing; 201. Water inlet pipe; 202. Water outlet pipe; 203. Sewage pipe; 204. Solenoid valve; 205. Filter cartridge; 206. Electric cylinder; 207. Cleaning tray; 3. Scraper; 4. Guide bucket; 5. Conical tube; 6. Filter screen; 7. Holes. Detailed Implementation
[0019] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0020] like Figures 1-3 As shown, a ground source heat pump wastewater purification device includes a heat pump body 1 and a purification device housing 2. The purification device housing 2 is installed inside the heat pump body 1, and a filtration and impurity removal mechanism is provided inside the purification device housing 2. The filtration and impurity removal mechanism includes: an inlet pipe 201, one end of which is connected to the bottom of the purification device housing 2, and the other end of which extends to the rear side of the heat pump body 1; an outlet pipe 202, one end of which is connected to one side of the purification device housing 2, and the other end of which extends to the outside of the heat pump body 1; a drain pipe 203, one end of which is connected to the top of one side of the purification device housing 2, and the other end of which extends to the outside of the heat pump body 1; a solenoid valve 204, which is installed at the end of the drain pipe 203; and a filter cartridge 205, which is installed inside the purification device housing 2. Electric cylinder 206 is fixedly installed on the top of the purification device housing 2. The output end of the electric cylinder 206 extends into the interior of the purification device housing 2, and the top of the electric cylinder 206 extends into the top of the heat pump body 1. Cleaning disc 207 is fixedly installed on the output end of the electric cylinder 206 and is located inside the purification device housing 2. With the cooperation of the filtration and impurity removal mechanism, it can automatically clean the impurities filtered and accumulated on the filter cartridge 205, ensuring that the filter cartridge 205 is always in the best working condition. Impurities will not accumulate on the filter cartridge 205 or other key components for a long time, greatly reducing the probability of equipment failure and avoiding frequent maintenance and replacement of parts. At the same time, it ensures the heat transfer efficiency of the system, which helps to improve the heating and cooling effect of the heat pump body 1 and ensure comfortable temperature control performance.
[0021] like Figure 2As shown, a scraper 3 is fixedly connected to the side surface of the cleaning disc 207. The scraper 3 is made of elastic material. The diameter of the cleaning disc 207 is adapted to the filter cartridge 205. When the cleaning disc 207 cleans the impurities on the inner wall of the filter cartridge 205, the adapted diameter ensures that the contact surfaces of the cleaning disc 207 and the filter cartridge 205 are tightly matched. Under the action of the side surface of the cleaning disc 207, the scraper 3 can effectively remove the impurities or dirt accumulated on the surface of the filter cartridge 205, avoid dirt accumulation, maintain filtration efficiency, and reduce wear between the scraper 3 and the filter cartridge 205 due to the elastic material of the scraper 3.
[0022] like Figure 2 As shown, a guide bucket 4 is fixedly connected to the bottom of the inner wall of the purification device housing 2. The guide bucket 4 is a cone shape that is narrow at the bottom and wide at the top. The guide bucket 4 can effectively distribute the water flow evenly from the water inlet pipe 201 to the inside of the filter cylinder 205, avoiding uneven water flow. This can ensure that the water flow distribution is more uniform and improve the water intake efficiency.
[0023] like Figures 2-3 As shown, the drain pipe 203 is located at the top of the filter cylinder 205. A tapered pipe 5 is fixedly connected to the inner wall of the drain pipe 203. When impurities and sewage flow into the drain pipe 203, the gradually narrowing design of the tapered pipe 5 can help accelerate the flow of water and increase the discharge speed. This helps to discharge sewage or impurities from the drain pipe 203 more quickly, thereby improving drainage efficiency and avoiding poor drainage or blockage of the drain pipe 203.
[0024] like Figure 2 As shown, a filter screen 6 is connected to the end of the inner wall of the water outlet pipe 202. The filter screen 6 is made of stainless steel. Under the action of the filter screen 6, the water discharged from the water outlet pipe 202 can be further purified and filtered, thereby improving the purification and filtration effect of the purification device.
[0025] like Figure 2 As shown, the top of the cleaning disc 207 has holes 7 that extend to the bottom of the cleaning disc 207. There are several holes 7, which are evenly distributed at the bottom of the cleaning disc 207. When the electric cylinder 206 moves the cleaning disc 207 downward to clean the inner wall of the filter cylinder 205, water can flow through the holes 7 under the action of the holes 7, thereby reducing the resistance when the cleaning disc 207 moves downward and helping to disperse pressure or improve the cleaning effect during cleaning.
[0026] The working principle of this utility model is as follows: When using the heat pump body 1, groundwater enters the interior of the purification device housing 2 through the inlet pipe 201. The groundwater then passes through the filter cartridge 205, which purifies the water of impurities. The filtered water is then discharged from the outlet pipe 202. Over time, the filtered impurities accumulate on the inner wall of the filter cartridge 205, affecting the efficiency of the purification device. Subsequently, the operator can operate the electric cylinder 206, which pushes the cleaning disc 207 downwards. The downward movement of the cleaning disc 207 cleans the inside of the filter cartridge 205. The accumulated impurities on the wall are scraped off. After the impurities are scraped off, the electric cylinder 206 is turned off. The electric cylinder 206 will then drive the cleaning disc 207 to move upward. At the same time, the solenoid valve 204 can be energized and the valve body can be opened. Then the cleaned impurities and sewage can be automatically discharged from the inside of the purification device housing 2 through the drain pipe 203. This can filter and automatically clean the impurities accumulated on the inner wall of the filter cartridge 205, ensuring that the filter screen 6 is always in the best working condition, effectively avoiding the clogging of the filter screen 6, maintaining the filtration efficiency, and ensuring that the filtration and impurity removal mechanism can ensure smooth water flow and avoid the water flow speed being affected by the clogging of the filter cartridge 205 or the sediment.
[0027] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A ground source heat pump sewage purification device, comprising a heat pump main body (1) and a purification device shell (2), the purification device shell (2) is installed in the inside of the heat pump main body (1), characterized in that: The interior of the purification device shell (2) is provided with a filtering and impurity removing mechanism; The filtering and impurity removing mechanism comprises: a water inlet pipe (201), one end of the water inlet pipe (201) being communicated with the bottom of the purification device shell (2), the other end of the water inlet pipe (201) penetrating to the rear side of the heat pump body (1); A water outlet pipe (202), one end of the water outlet pipe (202) being communicated with one side of the purification device shell (2), the other end of the water outlet pipe (202) penetrating to the outer side of the heat pump body (1); A blowdown pipe (203), one end of the blowdown pipe (203) being communicated with the top of one side of the purification device shell (2), the other end of the blowdown pipe (203) penetrating to the outer side of the heat pump body (1); An electromagnetic valve (204) installed at the end of the blowdown pipe (203); A filter cartridge (205) installed in the interior of the purification device shell (2); An electric cylinder (206) fixedly installed at the top of the purification device shell (2), the output end of the bottom of the electric cylinder (206) penetrating to the interior of the purification device shell (2), the top of the electric cylinder (206) penetrating to the top of the heat pump body (1); A cleaning disc (207) fixedly installed at the output end of the bottom of the electric cylinder (206), the cleaning disc (207) being arranged in the interior of the purification device shell (2).
2. The ground source heat pump sewage purification device according to claim 1, characterized in that: The side surface of the cleaning disc (207) is fixedly connected with a scraper (3), the scraper (3) being made of elastic material, the diameter of the cleaning disc (207) being matched with the filter cartridge (205).
3. The ground source heat pump sewage treatment apparatus of claim 1, wherein: The bottom of the inner wall of the purification device shell (2) is fixedly connected with a flow guide hopper (4), the flow guide hopper (4) being in the shape of a cone narrowing downward and widening upward.
4. The ground source heat pump sewage treatment apparatus of claim 1, wherein: The blowdown pipe (203) is located at the top of the filter cartridge (205), the inner wall of the blowdown pipe (203) being fixedly connected with a conical pipe (5).
5. The ground source heat pump sewage treatment apparatus of claim 1, wherein: The end of the inner wall of the water outlet pipe (202) is connected with a filter screen (6), the filter screen (6) being made of stainless steel.
6. The ground source heat pump sewage treatment apparatus of claim 1, wherein: The top of the cleaning disc (207) is provided with holes (7) penetrating to the bottom of the cleaning disc (207), the number of the holes (7) being several and being uniformly distributed at the bottom of the cleaning disc (207).