Sewage source heat pump filtering device

Abstract

The present application relates to sewage source heat pump technical field, specifically to a sewage source heat pump filtering device, including intercepting mechanism, setting in the front end of heat pump system, for intercepting large volume sundries in sewage, the intercepting mechanism includes sewage pipe assembly, rotating grid assembly, impeller ring, transmission assembly and cleaning tank, the present application is through rotating grid assembly and water flow energy linkage and realizes intercepting-rotation-cleaning closed loop, spring press rod limit position trigger displacement alarm, bubble erosion stripping sewage and accumulation tank secondary capture viscous sewage are combined, utilize sewage kinetic energy drive and reduce energy consumption, solve the problem of traditional coarse grid jamming cleaning lag, high energy consumption.

Description

Technical Field

[0001] This invention relates to the field of wastewater source heat pump technology, specifically a wastewater source heat pump filtration device. Background Technology

[0002] In existing wastewater source heat pump systems, wastewater first flows into the wastewater pump pit via a culvert by gravity. Before entering the pump pit, a coarse screen with a gap of 30-50mm is used to block impurities in the wastewater to prevent them from getting tangled in the pump impeller. This coarse screen filtration has the following problems:

[0003] For flexible fibrous debris such as hair, plant fibers, and textile debris, the coarse screen has limited interception effect. These debris are flexible and entangled, and can easily embed themselves into the gaps between the screen bars or escape through the gaps under the impact of water flow. Even if they are intercepted, they will tightly entangle and hook onto the surface of the screen bars and into the gaps between the teeth due to their own fibrous structure. The feed roller brush configured behind the coarse screen device can only remove large solid impurities from the surface of the screen through mechanical contact, but its roller brush structure is difficult to penetrate into the complex space between the teeth of the screen bars. It lacks sufficient peeling force for the fibrous dirt entangled in the gaps between the teeth, resulting in the continuous accumulation of flexible debris.

[0004] Especially in heat exchange scenarios involving wastewater with high fiber content (such as municipal sewage and textile industrial wastewater), the high concentration and strong viscosity of fiber pollutants in the wastewater further amplify the interception and cleaning deficiencies of coarse screens. Summary of the Invention

[0005] In order to overcome the above-mentioned technical problems, the present invention aims to provide a sewage source heat pump filtration device to solve the problems mentioned in the background art, such as the poor interception effect of coarse screens in existing sewage source heat pump systems, the easy clogging of dirt requiring manual cleaning and affecting efficiency, the difficulty in peeling off flexible dirt, and the difficulty in timely detection and cleaning of blockage.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A wastewater source heat pump filtration device, comprising:

[0008] An interception mechanism, located at the front end of the heat pump system, is used to intercept large-volume debris in wastewater. The interception mechanism includes a wastewater pipe assembly, a rotating bar screen assembly, an impeller ring, a transmission assembly, and a cleaning tank. A bubble erosion mechanism, used to remove residual contaminants from the bar screen surface, includes a storage tank, a submersible pump, and a venturi tube. The storage tank receives wastewater that penetrates the rotating bar screen assembly, and the submersible pump extracts contaminants from the bottom of the storage tank, forming a gas-liquid mixture through the venturi tube that impacts the bar screen within the cleaning chamber. An alarm assembly includes a contact sensor, an electrically controlled valve, and an alarm. The contact sensor responds to a bar screen displacement trigger signal, simultaneously closing the electrically controlled valve and issuing an alarm. A kinetic energy transmission assembly utilizes the wastewater flow to drive the impeller ring to rotate, which, after being decelerated by the transmission assembly, drives the rotating bar screen assembly to rotate, thus driving the continuous operation of the interception mechanism.

[0009] Preferably, the sewage pipe assembly includes a head pipe and a tail pipe, the head pipe is connected to an electrically controlled valve, the electrically controlled valve is connected to a sewage inlet pipe, the tail pipe is rotatably connected to an impeller ring, and the head pipe and tail pipe are fixed inside the cleaning tank and slide in contact with the rotating screen assembly.

[0010] Preferably, the rotating grid assembly includes a grid shaft, an inner ring frame, an outer ring, multiple sets of grid plates, and a guide component assembly; the grid shaft is rotatably connected inside the cleaning chamber, the inner ring frame is fixed to the outer wall of the grid shaft and connected to the outer ring via a support rod; the grid plates are slidably connected to the inner ring frame via grooves, and multiple sets of grid plates form a complete disc; the guide component assembly is disposed on the outer ring and includes a buckle and a spring pressure rod, the spring pressure rod abutting against the grid plate to make it fit against the outer ring.

[0011] Preferably, the swivel of the guide component assembly is rotatably connected to the outer ring, the end of the swivel is L-shaped and fixed with the spring pressure rod, and the corresponding positions of the grid plate and the outer ring are provided with grooves. When the swivel is embedded in the groove, the spring pressure rod presses against the grid plate to limit its position.

[0012] Preferably, the impeller ring is a circular ring structure, coaxially rotatably connected to the tailpipe, and its outer wall is fixedly connected to the ring frame of the transmission assembly. The transmission assembly includes the ring frame, gears and a reduction gearbox. The ring frame meshes with the gear through a gear ring. The gear is connected to the input end of the reduction gearbox, and the output end of the reduction gearbox drives the grid shaft to rotate.

[0013] Preferably, the storage tank is provided with an outlet connected to the subsequent heat pump pipeline, and the bottom is pumped by a submersible pump to suck up the deposited dirt. The venturi tube throat draws in air to form a gas-liquid mixture, which is sprayed into the cleaning tank to impact the surface of the grid plate.

[0014] Preferably, the contact sensor is installed inside the cleaning box and is triggered by the displacement signal of the grid plate. The bottom of the cleaning box is provided with a sewage outlet connected to the sedimentation tank, and the top is provided with a removable box cover for maintenance.

[0015] Preferably, the hinged assembly of the disassembly guide component is used to facilitate the removal of obstructing grilles when the lid is opened.

[0016] Preferably, the sewage flow drives the impeller ring to rotate, and the power is transmitted through the transmission assembly to drive the rotating grille assembly to move.

[0017] Preferably, the bubble erosion mechanism works in conjunction with the alarm component to form a closed-loop control through bubble removal, dirt deposition, and blockage warning, ensuring the continuous and efficient operation of the heat pump system.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] Through the linkage design of the rotating bar assembly and the kinetic energy of the sewage flow, a continuous closed-loop operation of interception, rotation and cleaning is achieved. The bar is driven by the water flow to continuously update the interception surface. Combined with the bubble erosion mechanism to actively remove residual dirt, it effectively avoids the clogging problem caused by the accumulation of fiber dirt in traditional bar and greatly reduces the frequency of manual cleaning.

[0020] The unique spring-loaded rod limiting structure and sliding grid design enable the grid to shift and automatically alarm when fibrous dirt accumulates, promptly controlling the electronically controlled valve to block sewage from entering. At the same time, the alarm mechanism reminds staff to maintain the clogged grid, overcoming the lag of traditional systems that rely on manual inspections, and ensuring maintenance response efficiency and system safety.

[0021] In the event of a short-term, high-volume flow of fiber contamination, the system should be shut down immediately to prevent the fiber contamination from entering the subsequent piping of the heat pump system.

[0022] Through the synergistic effect of sedimentation in the accumulation tank and bubble erosion, sticky contaminants that penetrate the grid are captured and cleaned in a secondary manner, preventing them from entering the subsequent heat pump system and causing a decrease in heat exchange efficiency, thus extending the service life of the equipment.

[0023] By utilizing the kinetic energy of sewage flow to drive the impeller ring and transmission components, the bar screen rotation and cleaning functions can be achieved without external power, reducing the overall energy consumption of the system and conforming to the development trend of green and energy-saving technologies. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure;

[0025] Figure 2 This is a schematic diagram of the overall cross-section;

[0026] Figure 3 This is a cross-sectional structural diagram of the sewage pipe assembly and the rotating bar screen assembly.

[0027] Figure 4 This is a three-dimensional structural diagram of the impeller ring, transmission assembly, and cleaning box;

[0028] Figure 5 This is a cross-sectional structural diagram of the rotating grille assembly, transmission assembly, and cleaning box.

[0029] Figure 6 This is a structural schematic diagram of the rotating grid assembly.

[0030] Figure 7 This is a cross-sectional structural diagram of the outer ring, grille, and guide component assembly.

[0031] Figure 8 A cross-sectional view of the cleaning box and rotating grid assembly.

[0032] Figure 9 This is a cross-sectional structural diagram of the venturi tube, storage tank, and cleaning tank.

[0033] In the diagram: 1. Sewage pipe assembly; 11. Head pipe; 12. Tail pipe; 2. Rotary bar assembly; 21. Bar shaft; 22. Inner ring frame; 23. Outer ring; 24. Bar plate; 25. Guide component assembly; 3. Impeller ring; 4. Transmission assembly; 41. Ring frame; 42. Gear; 43. Gearbox; 5. Accumulation tank; 51. Outlet; 6. Submersible pump; 7. Venturi tube; 8. Cleaning tank; 81. Tank cover; 82. Sewage outlet; 9. Contact sensor. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] One embodiment provided by the present invention:

[0036] A wastewater source heat pump filtration device, comprising:

[0037] See Figure 1 and Figure 2 An interception mechanism, which is installed before the heat pump system to intercept large-volume debris in the sewage, includes a sewage pipe assembly 1, a rotating bar assembly 2, an impeller ring 3, a transmission assembly 4, and a cleaning box 8.

[0038] See Figure 2The sewage pipe assembly 1 includes a head pipe 11 and a tail pipe 12 for the flow of sewage. One end of the head pipe 11 is connected to an electrically controlled valve via a one-way valve. The electrically controlled valve is connected to the sewage inlet pipe. The head pipe 11 and the tail pipe 12 slide in contact with the outer ring 23 and the bar screen 24 via mechanical packing. The head pipe 11 and the tail pipe 12 are both fixedly connected inside the cleaning tank 8. The sewage entering the head pipe 11 will flow through the rotating bar screen assembly 2 to the tail pipe 12.

[0039] See Figures 1-8 The rotating grille assembly 2 includes a grille shaft 21, which is rotatably connected inside the cleaning box 8. An inner ring frame 22 is fixedly connected to the outer wall of the grille shaft 21. An outer ring 23 is connected to the inner ring frame 22 via a support rod. The inner ring frame 22 slides in contact with grille plates 24 via a sliding groove. The grille plates 24 are provided in eight groups, and the eight groups of grille plates 24 form a complete disc. The grille plates 24 can move left and right along the axis of the grille shaft 21 via the sliding groove of the inner ring frame 22. Figure 7 The middle grid plate 24 can move to the right, away from the outer ring 23. The eight grid plates 24 are in movable contact rather than fixed connection. The outer ring 23 is provided with a guide component group 25, which includes a buckle and a spring rod. The buckle is rotatably connected to the outer ring 23. Grooves are provided on both the grid plate 24 and the outer ring 23 corresponding to the positions on the guide component group 25. The end of the buckle away from the rotatable connection position is L-shaped, and one end of the spring rod is fixedly connected within the L-shaped structure. The other end of the spring rod abuts against the grid plate 24 via a pad. When the buckle in the guide component group 25 contacts the grid plate 24 and the outer ring 23 through the groove, the spring rod will abut against the grid plate 24, making it fit against the outer ring 23. Figure 7 As shown;

[0040] See Figure 2 , Figure 3 and Figure 4 Impeller ring 3 is existing technology, and its specific working principle will not be elaborated in the text. Its outer wall is rotatably connected to tail pipe 12. The axis of impeller ring 3 is the same as that of tail pipe 12 and head pipe 11. When sewage flows in head pipe 11 and tail pipe 12, the flowing sewage will push the blades in impeller ring 3 when it passes through impeller ring 3, thereby driving the rotation of impeller ring 3. Impeller ring 3 will rotate around the axis in tail pipe 12. The impeller ring 3 is circular in shape.

[0041] See Figure 5The transmission assembly 4 includes a ring frame 41, which is fixedly connected to the outer wall of the impeller ring 3. The transmission assembly 4 slides between the tailpipe 12 and the storage box 5. The ring frame 41 rotates with the impeller ring 3. A gear ring is fixedly connected to the outer wall of the ring frame 41, and the ring frame 41 meshes with a gear 42 through the gear ring. One side of the gear 42 is rotatably connected to the storage box 5, and the other side of the gear 42 is fixedly connected to the input end of the reduction gearbox 43. The reduction gearbox 43 is installed in the cleaning box 8 through a bracket. The output end of the reduction gearbox 43 is fixedly connected to the grid shaft 21. Through the rotation of the impeller ring 3, the grid shaft 21 is driven to rotate at a low speed around its axis by the transmission and speed reduction through the ring frame 41, the gear 42, and the reduction gearbox 43.

[0042] The components of this interception mechanism work together. After the sewage enters the head pipe 11 through the one-way valve via the external sewage pipe, it first passes through the bar screen 24. The bar screen 24 blocks large impurities, and only the water can pass through the bar screen 24 to continue flowing into the tail pipe 12. The impeller ring 3 in the tail pipe 12 generates rotational force through the water flow, which drives the rotating bar screen assembly 2 at low speed via the transmission assembly 4. As a result, the bar screen shaft 21, inner ring frame 22, outer ring 23 and bar screen 24 rotate. The bar screen 24, which is in sliding contact between the head pipe 11 and the tail pipe 12, will continuously move. If there is solid dirt on it, it will be carried into the cleaning chamber of the cleaning box 8. Meanwhile, the bar screen 24 that is not blocked by solid dirt will continuously block the dirt in the sewage.

[0043] See Figures 1-2 The bubble erosion mechanism is used for primary sedimentation of viscous dirt, and at the same time, it generates bubbles by mixing dirt and water with gas to clean the grid plate 24.

[0044] The bubble erosion mechanism includes a accumulator 5, a submersible pump 6, and a venturi tube 7;

[0045] See Figure 2 and Figure 9The storage tank 5 includes a storage tank 5 and an outlet 51. The storage tank 5 has a storage chamber. When the viscous pollutants in the wastewater are not mixed with other waste, their small volume allows them to pass easily through the grid plate 24. As the viscous pollutants flow into the storage tank 5 with the wastewater, most of them settle at the bottom of the chamber due to their own weight. The heavier pollutants and viscous pollutants, along with some wastewater, settled at the bottom of the submersible pump 6 are pumped into the submersible pump 6 and discharged into the cleaning chamber of the cleaning tank 8 through the venturi tube 7. It should be noted that when this wastewater mixture passes through the venturi tube 7 (which is existing technology), the sudden narrowing of the throat causes… As the pressure decreases, external air is forced into the Venturi tube 7 through the air pipe and mixes with the sewage to form bubbles. At this time, the mixed sewage with bubbles will rush to the position of the grid plate 24. Due to the compressibility and buoyancy of the bubbles, the bubbles will burst rapidly and generate a small impact force, which can effectively peel off the residual dirt attached to the surface of the grid plate 24. Due to the effect of the bubble bursting, the mixed dirt and the peeled residual dirt are not easy to adhere in the cleaning chamber to form a large volume of dirt. With the flow of water, it flows from the arc-shaped sides of the cleaning chamber into the bottom sewage outlet 82, and is discharged into the sedimentation tank through the one-way valve and pipeline for sedimentation to collect the sticky dirt. Of course, this sedimentation tank is existing technology and is not within the scope of protection of this application.

[0046] If the wastewater contains fibrous contaminants such as hair, textile debris, or plant fibers, these contaminants can easily become entangled in the grid structure of the bar screen 24. Although the water flow and air bubbles discharged from the venturi tube 7 can clean the contaminants on the bar screen 24, some tightly entangled fibrous contaminants will still remain. When the residual contaminants begin to accumulate, they will partially obstruct the impact of the air bubbles and water flow, thus causing the contaminants to accumulate on the bar screen 24 and preventing the wastewater from flowing efficiently.

[0047] The non-flowing wastewater grating 24 is located before the venturi tube 7 port. Convection pushes the grating 24 away from the outer ring 23. Because the water flow cannot efficiently pass through the grating 24, the grating 24 will overcome the thrust of the spring rod on the guide assembly 25 under the force of the water flow, causing it to move away from the outer ring 23. Figure 7 Moving to the right as shown will cause it to contact and trigger the contact sensor 9. Once triggered, the contact sensor 9 will send a signal to the electrically controlled valve of the sewage inlet pipe, causing it to close. It will also alert the staff via an alarm that there is a section of the grating 24 that cannot be cleaned. Upon receiving the alarm, the staff will open the cover 81. At this point, the bolts between the guide assembly 25 and the outer ring 23 will be removed. Rotating the guide assembly 25 will release the restriction on the grating 24. The grating 24 can be disassembled by lifting it upwards. After disassembly and cleaning, it will be placed back into the inner ring frame 22 and the outer ring 23 following the original steps, and the guide assembly 25 will then restrict its movement.

[0048] The cleaning tank 8 includes a cover 81 and a cleaning tank 8. The cover 81 is detachably installed on the top of the cleaning tank 8. A contact sensor 9 is installed inside the cleaning tank 8. The contact sensor 9 is electrically connected to an electrically controlled valve and an alarm. The electrically controlled valve is installed before the one-way valve connected to one end of the sewage pipe assembly 1. The outlet 51 is connected to the outlet pipe, which is connected to the heat exchange pipe of the subsequent heat pump unit.

[0049] Working principle:

[0050] Wastewater enters the head pipe 11 through an external sewage pipe via an electrically controlled valve and a check valve, and first flows through the rotating bar screen assembly 2. At this time, the disc composed of eight sets of bar screens 24 is tightly fitted to the outer ring 23 by the spring pressure rod of the guide component assembly 25. Large-volume debris in the wastewater is intercepted by the bar screens 24, and the filtered water continues to flow to the tail pipe 12. The impeller ring 3 inside the tail pipe 12 is driven to rotate by the water flow, and its power is transmitted through the transmission assembly 4: the impeller ring 3 drives the ring frame 41 and the gear ring to rotate, and the power is transmitted to the reduction gearbox 43 through the meshing of the gear 42, which ultimately drives the bar screen shaft 21 to rotate at a low speed, so that the inner ring frame 22, the outer ring 23 and the bar screens 24 rotate synchronously.

[0051] The intercepted contaminants are carried into the cleaning chamber of the cleaning tank 8 by the rotating bar screen assembly 2. At this time, the bubble erosion mechanism is activated: the submersible pump 6 at the bottom of the accumulation tank 5 pumps the deposited viscous contaminant and wastewater mixture to the venturi tube 7. As the wastewater flows through the throat of the venturi tube 7, air is drawn in due to the pressure difference, forming a gas-liquid mixture. The wastewater containing bubbles is sprayed at high speed from the outlet of the venturi tube 7 onto the surface of the bar screen 24 in the cleaning chamber. The impact force generated by the bursting of the bubbles strips away the residual contaminants. The cleaned contaminants are discharged into the sedimentation tank through the bottom drain outlet 82 at the bottom of the cleaning chamber, while the filtered water flows into the subsequent heat pump system through the outlet 51 of the accumulation tank 5.

[0052] When the fiber concentration in municipal sewage and food processing wastewater fluctuates significantly, the entanglement speed of the bar screen 24 far exceeds the automatic cleaning capacity. Therefore, a redundant alarm component is used. A large amount of fibrous material entangles the bar screen 24 in a short period, causing blockage. The water flow resistance from the Venturi tube 7 pushes the bar screen 24 to the right along the inner ring frame 22, triggering the contact sensor 9, which in turn closes the electrically controlled valve on the sewage inlet pipe and issues an alarm. At this point, the entire filtration unit stops, preventing sewage containing a large amount of fibrous material from entering the heat exchange system, thus protecting the safety of the entire heat exchange system.

[0053] This mechanism effectively avoids the following risks: If fiber contaminants enter the heat exchanger, they will entangle on the inner wall of the heat exchange tubes or accumulate to form a "contaminant layer," causing the water flow channel to narrow or even completely block, significantly reducing heat exchange efficiency; fiber entanglement in the pump impeller may cause motor overload and overheating, and long-term operation will accelerate impeller bearing wear, even leading to mechanical failure. This application intercepts high-risk fiber wastewater at the front end of the filtration device, ensuring that the core components of the heat pump system (pump and heat exchanger) are not contaminated, thus avoiding a chain of failures from the source.

[0054] To reactivate the system, maintenance personnel should open the cover 81, release the guide assembly 25 from the barrier of the grille 24, and then remove and clean the clogged grille 24. After cleaning, reset the grille 24, and the system will restart to restore its filtration function.

[0055] The entire process achieves closed-loop control of wastewater impurity interception, rotary self-cleaning, and abnormal blockage alarm, ensuring the efficient and stable operation of the heat pump system.

[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wastewater source heat pump filtration device, characterized in that, include: An interception mechanism, located at the front end of the heat pump system, is used to intercept large-volume debris in sewage. The interception mechanism includes a sewage pipe assembly, a rotating bar assembly, an impeller ring, a transmission assembly, and a cleaning box. A bubble erosion mechanism is used to remove residual dirt from the surface of the bar screen. It includes a sump, a submersible pump and a venturi tube. The sump receives wastewater that penetrates the rotating bar screen assembly. The submersible pump extracts dirt from the bottom of the sump and forms a gas-liquid mixture through the venturi tube to impact the bar screen in the cleaning chamber. The alarm component includes a contact sensor, an electrically controlled valve, and an alarm. The contact sensor responds to a grid plate displacement trigger signal, thereby closing the electrically controlled valve and issuing an alarm. The kinetic energy transmission component uses the flow of sewage to drive the impeller ring to rotate, and after being reduced in speed by the transmission component, it drives the rotating grid component to rotate, which is used to drive the continuous operation of the interception mechanism. The sewage pipe assembly includes a head pipe and a tail pipe. The head pipe is connected to an electrically controlled valve, which is connected to a sewage inlet pipe. The tail pipe is rotatably connected to an impeller ring. The head pipe and tail pipe are fixed inside the cleaning tank and slide in contact with the rotating screen assembly. The rotating grid assembly includes a grid shaft, an inner ring frame, an outer ring, multiple sets of grid plates, and a guide component assembly. The grid shaft is rotatably connected inside the cleaning chamber. The inner ring frame is fixed to the outer wall of the grid shaft and connected to the outer ring via a support rod. The grid plates are slidably connected to the inner ring frame via grooves, and the multiple sets of grid plates form a complete disc. The guide component assembly is located on the outer ring and includes a swivel buckle and a spring pressure rod, which abuts against the grid plates to make them fit against the outer ring. The guide component assembly is rotatably connected to the outer ring, and the end of the rotat is L-shaped and fixed with the spring rod. The grid plate and the outer ring are provided with grooves at corresponding positions. When the rotat is embedded in the groove, the spring rod presses against the grid plate to limit its position. The impeller ring is a circular ring structure, coaxially rotatably connected to the tailpipe, and its outer wall is fixedly connected to the ring frame of the transmission component. The transmission assembly includes a ring frame, a gear, and a reduction gearbox. The ring frame meshes with the gear through a gear ring. The gear is connected to the input end of the reduction gearbox, and the output end of the reduction gearbox drives the grid shaft to rotate. The storage tank is equipped with an outlet connected to the subsequent heat pump pipeline. The bottom is pumped by a submersible pump to suck up the deposited dirt. The venturi tube throat draws in air to form a gas-liquid mixture, which is sprayed into the cleaning tank to impact the surface of the grid plate.

2. The wastewater source heat pump filtration device according to claim 1, characterized in that: The contact sensor is installed inside the cleaning box and is triggered by the displacement signal of the grid plate. The bottom of the cleaning box is provided with a sewage outlet connected to the sedimentation tank, and the top is provided with a removable box cover for maintenance.

3. The wastewater source heat pump filtration device according to claim 2, characterized in that: The hinged assembly for disassembling the cover when it is opened facilitates the removal of any obstructing grating.

4. The wastewater source heat pump filtration device according to claim 1, characterized in that: The bubble erosion mechanism works in conjunction with the alarm components to form a closed-loop control through bubble removal, dirt deposition, and blockage warning, ensuring the continuous and efficient operation of the heat pump system.

Images