Cold and hot energy-saving equipment of sewage source heat pump

Abstract

The invention discloses sewage source heat pump cold and hot energy-saving equipment, and belongs to the field of heat pumps, the sewage source heat pump cold and hot energy-saving equipment comprises a heat pump unit, the heat pump unit is provided with an input port used for being connected with a sewage conveying pipeline, and the input port is connected with a filtering pipeline; a filtering plate for filtering pollutants and a collecting mechanism for collecting the pollutants are arranged in the filtering pipeline, a plurality of filtering holes are formed in the filtering plate, and an anti-blocking assembly for preventing the filtering holes from being blocked is further arranged in the filtering pipeline. The sewage treatment device has the effect of preventing impurities in sewage from blocking the pipeline, so that the possibility of equipment damage and the like is reduced.

Description

Technical Field

[0001] This application relates to the technical field of heat pumps, and in particular to a sewage-source heat pump energy-saving heating and cooling equipment. Background Art

[0002] A sewage-source heat pump relies on the physical state cycle change of the refrigerant inside the heat pump unit. In winter, it absorbs heat from sewage and heats the building after the temperature is raised by the heat pump unit; in summer, through the heat pump unit, it transfers the heat in the building to the sewage, thus realizing cooling, and the sewage replaces the cooling tower. The sewage-source heat pump system can be regarded as a large-scale central air conditioner in the city. It extracts the low-grade heat energy from the sewage to provide winter heating, summer cooling and domestic hot water for public and civil buildings such as hotels, shopping malls, residential buildings, factories and mines. It uses a small amount of electricity as the driving energy of the system equipment, without burning coal, without polluting gas emissions, without heat island effect, green and environmentally friendly, renewable energy utilization, energy-saving and environmentally friendly, with low investment and good effect.

[0003] Using urban sewage as a cold and heat source for building heating and air conditioning can directly reduce the consumption of other scarce energy sources, and at the same time can achieve the purpose of waste utilization. It is an important measure for resource recycling, developing circular economy, building a conservation-minded society and a friendly environment.

[0004] The main equipment in the sewage-source heat pump machine room includes heat pumps, sewage heat exchangers, water pumps providing kinetic energy, water tanks, and auxiliary equipment such as connecting pipelines and control valves. The composition of urban raw sewage is complex and unstable, containing various suspended substances, flocs, oils, solid particles, etc. When this sewage containing pollutants enters the heat pump evaporator, it is easy to cause blockage, which may cause ice blockage or even pipe explosion due to poor local water flow. Summary of the Invention

[0005] In order to avoid the blockage of pipelines by impurities in the sewage, thereby reducing the possibility of equipment damage and other situations, this application provides a sewage-source heat pump energy-saving heating and cooling equipment.

[0006] The sewage-source heat pump energy-saving heating and cooling equipment provided by this application adopts the following technical solutions: A sewage source heat pump energy-saving heating and cooling equipment includes a heat pump unit. The heat pump unit is provided with an input port for connecting a sewage pipeline for transportation. A filtering pipeline is connected to the input port. A filtering plate for filtering pollutants and a collecting mechanism for collecting pollutants are arranged in the filtering pipeline. The filtering pipeline includes a rectangular block and two cylinders. The two cylinders are respectively fixedly connected to both sides of the rectangular block. A conveying groove is opened in each cylinder. A square groove is opened in the rectangular block. One of the conveying grooves is connected to the heat pump unit, and the conveying groove at the end far from the heat pump unit is communicated with the sewage pipe. The filtering plate is installed in the square groove. A plurality of filtering holes are opened in the filtering plate. An anti-blocking component for preventing the filtering holes from being blocked is also arranged in the filtering pipeline.

[0007] By adopting the above technical solution, the sewage first passes through the filtering pipeline and then is filtered by the filtering plate and enters the heat pump unit for heat exchange. Pollutants such as flocs in the sewage will be isolated outside the filtering plate. As the amount of filtered sewage increases, the filtering holes on the filtering plate will be blocked, affecting the filtering effect. At this time, the anti-blocking component dredges the filtering holes on the filtering plate, reducing the possibility of blockage. In addition, the collecting mechanism can remove the pollutants separated from the sewage by the filtering pipeline from the filtering pipeline and collect them for subsequent treatment, thereby reducing the possibility of blockage of the heat pump unit, and further reducing the possibility of damage to the heat pump unit and causing economic losses.

[0008] Preferably, the inner wall of the filtering pipeline and internal structures such as the filtering plate are all coated with a coating having hydrophobic, oleophobic and anti-corrosion properties.

[0009] By adopting the above technical solution, the anti-corrosion coating can reduce the corrosion speed of its interior by sewage, improve the service life of the filtering pipeline, etc., and improve economic benefits.

[0010] Preferably, the anti-blocking component includes a dredging plate and a plurality of dredging rods. The plurality of dredging rods are fixedly connected to the dredging plate. The plurality of dredging rods can be respectively inserted into the plurality of filtering holes on the filtering plate. The dredging plate rotates in the square groove. A rotating rod passes through the dredging plate. One end of the rotating rod passes out of the filtering pipeline and is fixedly connected to a first motor.

[0011] By adopting the above technical solution, when cleaning the filtering plate, the first motor is started to drive the rotating rod to rotate. The rotation of the rotating rod drives the dredging plate to rotate towards the filtering plate, so that the dredging rods are inserted into the filtering holes, and the garbage accumulated in the filtering holes is pushed out of the filtering holes, thereby dredging the filtering holes and maintaining the sewage flow rate.

[0012] Preferably, the collection mechanism includes a collection box and a hinged door. A collection groove is formed in the inner wall of the square groove. The hinged door is hinged at the connection between the collection groove and the square groove. A torsion spring for resetting the hinged door is arranged on the hinged door, and a rubber strip for sealing is fixedly connected to the hinged door. The collection box is slidably connected in the collection groove, and the collection mechanism further includes a pushing component for pushing the pollutants in the filtering pipeline into the collection groove.

[0013] By adopting the above technical solution, after the dredging rod cleans the filtering holes, the pushing component is activated to push the pollutants accumulated in front of the filter plate towards the hinged door, and the hinged door is opened, so that the pollutants are pushed into the collection groove and fall into the collection box for temporary storage.

[0014] Preferably, the pushing component includes a push block and an electric push rod. A sliding groove is formed in the inner wall of the filtering pipeline relative to the hinged door. The push block slides in the sliding groove. The push block is slidably connected to the filter plate and the inner wall of the filtering pipeline. The electric push rod is fixedly installed outside the filtering pipeline. The piston rod of the electric push rod penetrates the filtering pipeline and is fixedly connected to the push block. The push block abuts against the hinged door.

[0015] By adopting the above technical solution, when the dredging plate abuts against the filter plate, the electric push rod is activated. The piston rod of the electric push rod pushes the push block towards the hinged door. When the push block moves, it abuts against and slides on the side wall of the filter plate and the inner wall of the filtering pipeline, pushing the pollutants accumulated in front of the filter plate and the pollutants attached to the surface of the filter plate into the collection groove, cleaning the inside of the pipeline and improving the fluidity inside the pipeline.

[0016] Preferably, the heat pump unit is communicated with a flow-through sewage source heat exchanger. The flow-through sewage source heat exchanger includes a fuselage. A sewage channel is arranged inside the fuselage. Intermediate water pipelines are arranged on both side walls of the fuselage. A sewage inlet and a sewage outlet are respectively arranged at the upper and lower ends of the fuselage and are communicated with both ends of the sewage channel. Intermediate water inlets and intermediate water outlets are respectively arranged at both ends of the intermediate water pipeline. The intermediate water outlet is communicated with the heat pump unit.

[0017] By adopting the above technical solution, setting the flow-through sewage source heat exchanger can exchange heat between sewage and intermediate water, and connect the clean intermediate water to the heat pump unit, avoiding the possibility of pollutants in the sewage blocking the heat pump unit.

[0018] Preferably, a cleaning frame slides in the sewage channel. Cleaning brushes are arranged on the outer peripheral side wall of the cleaning frame. The cleaning brushes are slidably connected to the inner wall of the sewage channel. A driving component for driving the cleaning frame is arranged on the fuselage.

[0019] By adopting the above technical solution, the cleaning frame drives the cleaning brush thereon to reciprocate in the sewage pipe under the action of the driving component, cleaning the inner wall of the sewage pipe, preventing impurities in the sewage from adhering to its inner wall, and thus reducing the effect of heat exchange caused by pollutants adhering to the inner wall.

[0020] Preferably, the driving component includes a lead screw and a second motor. The lead screw rotates in the sewage pipe, and the second motor is fixedly installed on the outer side wall of the fuselage. One end of the lead screw penetrates the fuselage and is fixedly connected to the second motor, and the cleaning frame is threadedly connected to the lead screw.

[0021] By adopting the above technical solution, the second motor drives the lead screw to rotate, and the lead screw drives the cleaning frame to reciprocate in the sewage pipe.

[0022] Preferably, a telescopic groove is formed on the side wall of the cleaning frame, a spring is arranged in the telescopic groove, the cleaning brush includes a connecting block, a connecting plate and bristles. The connecting plate is fixedly connected to the connecting block, the bristles are fixedly connected to the connecting plate, the connecting plate abuts against the side wall of the cleaning frame, the connecting block slides in the telescopic groove, and both ends of the spring are fixedly connected to the connecting block and the inner wall of the telescopic groove respectively.

[0023] By adopting the above technical solution, during long-term frictional cleaning, the bristles on the cleaning brush may be broken or worn. At this time, the spring can push the cleaning brush to abut against the inner wall of the sewage pipe, thereby improving the cleaning effect.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The sewage first passes through the filter pipe and then through the filter plate before entering the heat pump unit for heat exchange. Pollutants such as flocs in the sewage will be blocked outside by the filter plate. As the amount of filtered sewage increases, the filter holes on the filter plate will be blocked, affecting the filtering effect. At this time, the anti-blocking component dredges the filter holes on the filter plate, reducing the possibility of blockage. In addition, the collection mechanism can remove the pollutants separated from the sewage by the filter pipe from the filter pipe and collect them for subsequent treatment, thereby reducing the possibility of blockage of the heat pump unit, and further reducing the possibility of damage to the heat pump unit and causing economic losses; 2. The anti-corrosion coating can reduce the corrosion rate of its interior by sewage, improve the service life of the filter pipe, etc., and improve economic benefits; 3. The cleaning frame drives the cleaning brush thereon to reciprocate in the sewage pipe under the action of the driving component, cleaning the inner wall of the sewage pipe, preventing impurities in the sewage from adhering to its inner wall, and thus reducing the effect of heat exchange caused by pollutants adhering to the inner wall. Description of the Drawings

[0025] Figure 1 It is a schematic cross-sectional view of the filtering pipeline in the first embodiment of the present application.

[0026] Figure 2 It is a schematic structural view of the anti-blocking component highlighted in the first embodiment of the present application.

[0027] Figure 3 It is a schematic cross-sectional view of the rectangular block in the first embodiment of the present application.

[0028] Figure 4 It is a schematic cross-sectional view of the flow-channel type sewage source heat exchanger in the second embodiment of the present application.

[0029] Figure 5 It is a schematic structural view of the driving component highlighted in the second embodiment of the present application.

[0030] Figure 6 It is a schematic structural view of the cleaning frame highlighted in the second embodiment of the present application.

[0031] Explanation of reference numerals: 1, heat pump unit; 2, input port; 3, filtering pipeline; 4, rectangular block; 5, cylinder; 6, conveying trough; 7, square groove; 8, filter plate; 9, collection mechanism; 10, filtering holes; 11, anti-blocking component; 13, dredging plate; 14, dredging rod; 15, rotating rod; 16, first motor; 17, collection frame; 18, hinged door; 19, collection trough; 20, rubber strip; 21, pushing component; 22, push block; 23, electric push rod; 24, sliding groove; 25, flow-channel type sewage source heat exchanger; 26, sewage inlet; 27, sewage outlet; 28, sewage channel; 29, intermediate water inlet; 30, intermediate water outlet; 31, intermediate water pipeline; 32, cleaning frame; 33, cleaning brush; 34, driving component; 35, lead screw; 36, second motor; 37, telescopic groove; 38, spring; 39, connecting plate; 40, connecting block; 41, bristles; 42, water draining holes; 43, material taking port. Detailed implementation manners

[0032] The following further elaborates on the present application in conjunction with the attached Figures 1-5 for a more detailed description of the present application. Embodiment

[0033] The first embodiment of the present application discloses a sewage source heat pump cold and heat energy-saving equipment, such as Figure 1 and Figure 2As shown in the figure, it includes a heat pump unit 1. The heat pump unit 1 is provided with an input port 2 for connecting the sewage transportation pipeline. A filter pipeline 3 is connected to the input port 2. The filter pipeline 3 includes a rectangular block 4 and two cylinders 5. The two cylinders 5 are respectively fixedly welded to both ends of the rectangular block 4. A circular conveying groove 6 is opened in the two cylinders 5. A square groove 7 with a square cross-section is opened in the rectangular block 4. The conveying groove 6 and the square groove 7 are communicated. One of the conveying grooves 6 on both sides of the filter pipeline 3 is communicated with the heat pump unit 1, and the other is communicated with the sewage conveying pipeline. A filter plate 8 for filtering pollutants is arranged in the square groove 7. The filter plate 8 is square-shaped, and a plurality of filter holes 10 are opened on the filter plate 8. A collecting mechanism 9 for collecting pollutants is arranged on the filter pipeline 3. An anti-blocking component 12 for preventing the filter holes 10 from being blocked is also arranged in the filter pipeline 3. The inner wall of the filter pipeline 3, the filter plate 8 and other structures in contact with sewage are all coated with a coating with hydrophobic, oleophobic and anti-corrosion properties. The anti-corrosion coating can reduce the corrosion speed inside it, improve the service life of the filter pipeline 3, etc., and improve economic benefits.

[0034] As Figure 2 and Figure 3 shown, the anti-blocking component 12 includes a dredging plate 13 and a plurality of dredging rods 14. The dredging plate 13 is in the shape of a cuboid and is rotatably arranged in the square groove 7. The plurality of dredging rods 14 are fixedly welded to the dredging plate 13, and the dredging rods 14 are vertically arranged on the dredging plate 13. When the filter plate 8 filters sewage, the dredging plate 13 abuts against the inner wall of the square groove 7. When it is necessary to dredge the filter plate 8, the arc of the rotation axis of the dredging plate 13 abuts against the filter plate 8 and the dredging rods 14 are inserted into the filter holes 10. A rotating rod 15 is rotatably arranged in the square groove 7 in the vertical direction. The dredging plate 13 is fixedly sleeved on the rotating rod 15. The top end of the rotating rod 15 penetrates through the filter pipeline 3 and is fixedly connected with a first motor 16. The first motor 16 drives the rotating rod 15 to rotate, and the rotation of the rotating rod 15 drives the dredging plate 13 to rotate from being perpendicular to the filter plate 8 to being parallel and abutting against the filter plate 8. At this time, the dredging rods 14 on the dredging plate 13 are inserted into the filter holes 10 and push out the accumulated pollutants in the filter holes 10. At this time, the collecting mechanism 9 collects and processes the pollutants on the surface of the filter plate 8 and in the vicinity.

[0035] As Figure 2 and Figure 3As shown, the collection mechanism 9 includes a collection box 17 and a hinged door 18. A collection groove 19 is provided in the inner wall of the square groove 7. The collection groove 19 extends vertically downward within the rectangular block 4. The hinged door 18 is hinged at the connection between the collection groove 19 and the square groove 7. A torsion spring for resetting is provided on the hinged door 18, and a rubber strip 20 for sealing the opening of the collection groove 19 is fixedly provided on the frame of the hinged door 18. The collection box 17 is arranged in the collection groove 19, and a material taking port 43 is provided in the inner wall of the collection groove 19. The collection box 17 slides in the material taking port 43. After too much pollutant accumulates in the collection box 17, the staff takes out the collection box 17 from the material taking port 43 and cleans the pollutants inside it. A water drainage hole 42 is provided on the lower end wall of the collection box 17. A water storage cavity is provided below the collection box 17 in the collection groove 19. A water pump and a delivery pipe for delivering the sewage in the water storage cavity to the front end of the filtration pipeline 3 and filtering it again through the filter plate 8 are provided in the water storage cavity.

[0036] As Figure 2 and Figure 3 shown, the collection mechanism 9 further includes a pushing component 21 for pushing the pollutants in the filtration pipeline 3 into the collection groove 19. The pushing component 21 includes a push block 22 and an electric push rod 23. A sliding groove 24 is provided in the inner wall of the square groove 7 opposite to the hinged door 18. The push block 22 is slidably connected to the inner wall of the sliding groove 24. The side wall of the push block 22 is slidably connected to the filter plate 8 and the inner wall of the square groove 7. The electric push rod 23 is fixedly installed outside the filtration pipeline 3. The piston rod of the electric push rod 23 passes through the filtration pipeline 3 and is fixedly connected to the push block 22. The push block 22 abuts against the hinged door 18.

[0037] The implementation principle of the first embodiment of this application is as follows: The sewage first passes through the filter plate 8 in the filter pipe 3 for filtration and then enters the heat pump unit 1 for heat exchange. Pollutants such as flocs in the sewage will be isolated outside by the filter plate 8. As the amount of filtered sewage increases, the filter holes 10 on the filter plate 8 will be blocked, affecting the filtration effect. At this time, the first motor 16 starts, and the rotation of the first motor 16 drives the rotating rod 15 to rotate. The rotation of the rotating rod 15 drives the dredging plate 13 to rotate towards the filter plate 8. When the dredging plate 13 rotates to be parallel and abuts against the filter plate 8, the dredging rods 14 on the dredging plate 13 correspondingly insert into the filter holes 10, so as to push the pollutants accumulated in the filter holes 10 out of the filter holes 10, thus completing the dredging and cleaning of the filter holes 10. Then, the electric push rod 23 starts, and the piston rod of the electric push rod 23 pushes the push block 22 towards the hinged door 18. When the push block 22 moves, its side wall abuts against and slides on the side wall of the filter plate 8 and the inner wall of the bottom of the square groove 7, pushing the pollutants attached to and accumulated on the surface of the filter plate 8 and the pollutants accumulated on the inner wall of the bottom of the square groove 7 near the filter plate 8 towards the hinged door 18. The hinged door 18 is pushed open by the push block 22. After the pollutants are pushed into the collection tank 19, the push block 22 is reset under the drive of the electric push rod 23. After the push block 22 moves away from the hinged door 18, the hinged door 18 is reset under the drive of the torsion spring. The rubber strip 20 on the hinged door 18 can enhance the sealing effect on the collection tank 19. The pollutants falling into the collection tank 19 enter the collection frame 17, where the solid pollutants accumulate in the collection frame 17, and the sewage flows into the water storage cavity through the water drainage holes 42 and is pumped back into the conveying tank 6 by the water pump to pass through the filter plate 8 again for filtration; when the pollutants in the collection frame 17 accumulate too much, the staff opens the material taking port 43 to clean the pollutants inside. Thus, the transportation pipeline of the sewage is cleaned and dredged, the fluidity in the pipeline is improved, the possibility of blockage of the heat pump unit 1 is reduced, and further the possibility of damage to the heat pump unit 1 and economic losses is reduced. Embodiment

[0038] As Figure 4 and Figure 5As shown in the figure, the difference between the second embodiment and the first embodiment is that the heat pump unit 1 is not directly connected to the sewage. A flow-through sewage source heat exchanger 25 is connected to the heat pump unit 1 through a pipeline at its connection point. The flow-through sewage source heat exchanger 25 includes a body, the body is rectangular, a sewage channel 28 is opened in the body, the cross-section of the sewage channel 28 is rectangular, a sewage inlet 26 and a sewage outlet 27 are arranged on the body, and the sewage inlet 26 and the sewage outlet 27 are respectively connected to both ends of the sewage channel 28. Intermediary water pipelines 31 are installed on both sides of the body. The cross-section of the intermediary water pipeline 31 is circular. An intermediary water inlet 29 and an intermediary water outlet 30 are respectively arranged at both ends of the intermediary water pipeline 31, and the intermediary water outlet 30 is connected to the inlet of the heat pump unit 1. The flow-through sewage source heat exchanger 25 is provided to only exchange heat between the sewage and the intermediary water, and connect the intermediary water that has obtained heat to the heat pump unit 1, avoiding the possibility that pollutants in the sewage block the heat pump unit 1.

[0039] As Figure 5 As shown in the figure, a plurality of cleaning frames 32 slide in the sewage pipeline. The cleaning frames 32 are rectangular. Cleaning brushes 33 are connected to the outer peripheral side walls around the cleaning frames 32. The cleaning brushes 33 are slidably connected to the inner wall of the sewage pipeline. The cleaning brushes 33 include connecting blocks 40, connecting plates 39 and bristles 41. The connecting plates 39 are fixedly connected to the connecting blocks 40. The bristles 41 are fixedly connected to the side wall of the connecting plate 39 away from the connecting block 40. Telescopic grooves 37 are opened on the outer side walls around the cleaning frames 32. The connecting plates 39 are slidably connected to the inner walls of the telescopic grooves 37. Springs 38 are arranged in the telescopic grooves 37. Both ends of the springs 38 are fixedly welded to the connecting blocks 40 and the inner walls of the telescopic grooves 37 respectively. The side walls of the connecting plates 39 abut against the side walls of the cleaning frames 32, and the bristles 41 slide on the inner wall of the sewage pipeline. A driving component 34 for driving the cleaning frames 32 is arranged on the body. The driving component 34 includes a lead screw 35 and a second motor 36. The lead screw 35 rotates in the sewage pipeline. The second motor 36 is fixedly installed on the outer side wall of the body. One end of the lead screw 35 penetrates the body and is fixedly connected to the second motor 36. The cleaning frames 32 are threadedly connected to the lead screw 35.

[0040] The implementation principle of the second embodiment of the present application is as follows: When the sewage exchanges heat with the intermediary water, the second motor 36 is started to drive the lead screw 35 to rotate. The lead screw 35 rotates to drive the cleaning frames 32 to drive the cleaning brushes 33 to reciprocate in the sewage pipeline, cleaning the inner wall of the sewage pipeline, avoiding impurities in the sewage from adhering to its inner wall, and thus reducing the effect of heat exchange caused by pollutants adhering to the inner wall. During long-term frictional cleaning, the bristles 41 on the cleaning brushes 33 may be broken or worn. At this time, the cleaning plates are pushed by the springs 38 to keep the bristles 41 always abutting against the inner wall of the sewage pipeline, thereby improving the cleaning effect.

[0041] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A sewage source heat pump cooling and heating energy-saving equipment, characterized in that: The invention comprises a heat pump unit (1), wherein the heat pump unit (1) comprises an input port (2) for connecting to a sewage transport pipeline, wherein the input port (2) is connected to a filter pipeline (3), wherein a filter plate (8) for filtering pollutants and a collection mechanism (9) for collecting pollutants are arranged in the filter pipeline (3); the filter pipeline (3) comprises a rectangular block (4) and two cylinders (5), wherein the two cylinders (5) are respectively fixedly connected to two sides of the rectangular block (4), and the cylinders ( 5) is provided with a conveying groove (6), a square groove (7) is provided in the rectangular block (4), one of the conveying grooves (6) is connected to the heat pump unit (1), and the conveying groove (6) at one end away from the heat pump unit (1) is connected to the sewage pipe, the filter plate (8) is installed in the square groove (7), a plurality of filter holes (10) are provided on the filter plate (8), and an anti-blocking component (11) for preventing the filter holes (10) from being blocked is also provided in the filter pipe (3).

2. A sewage source heat pump cooling and heating energy-saving equipment according to claim 1, characterized in that: The inner wall of the filter pipe (3) and the internal structures such as the filter plate (8) are all coated with a hydrophobic, oleophobic and anti-corrosive coating.

3. A sewage source heat pump cooling and heating energy-saving equipment according to claim 1, characterized in that: The anti-blocking component (11) comprises a dredging plate (13) and a plurality of dredging rods (14); the plurality of dredging rods (14) are fixedly connected to the dredging plate (13); the plurality of dredging rods (14) can be respectively inserted into the plurality of filter holes (10) on the filter plate (8); the dredging plate (13) rotates in the square groove (7); a rotating rod (15) is passed through the dredging plate (13); one end of the rotating rod (15) passes through the filter pipe (3) and is fixedly connected to a first motor (16).

4. The sewage source heat pump cooling and heating energy-saving equipment according to claim 1 is characterized by: The collecting mechanism (9) comprises a collecting frame (17) and a hinged door (18); a collecting groove (19) is provided on the inner wall of the square groove (7); the hinged door (18) is hinged at the connection between the collecting groove (19) and the square groove (7); a torsion spring for resetting the hinged door (18) is provided on the hinged door (18); a rubber strip (20) for sealing is fixedly connected to the hinged door (18); the collecting frame (17) is slidably connected to the collecting groove (19); the collecting mechanism (9) further comprises a pushing component (21) for pushing the pollutants in the filtering pipe (3) to the collecting groove (19).

5. A sewage source heat pump cooling and heating energy-saving equipment according to claim 4, characterized in that: The pushing assembly (21) comprises a pushing block (22) and an electric pushing rod (23); a sliding groove (24) is provided on the inner wall of the filter pipe (3) relative to the hinged door (18); the pushing block (22) slides in the sliding groove (24); the pushing block (22) is slidably connected to the filter plate (8) and the inner wall of the filter pipe (3); the electric pushing rod (23) is fixedly installed on the outer side of the filter pipe (3); the piston rod of the electric pushing rod (23) passes through the filter pipe (3) and is fixedly connected to the pushing block (22); and the pushing block (22) abuts against the hinged door (18).

6. The sewage source heat pump cooling and heating energy-saving equipment according to claim 1 is characterized by: The heat pump unit (1) is connected to a flow channel type sewage source heat exchanger (25), the flow channel type sewage source heat exchanger (25) comprising a body, a sewage channel (28) being arranged inside the body, intermediate water pipes (31) being arranged on both side walls of the body, sewage inlets (26) and sewage outlets (27) being arranged at the upper and lower ends of the body respectively and being connected to the two ends of the sewage channel (28); intermediate water inlets (29) and intermediate water outlets (30) being arranged at the two ends of the intermediate water pipe respectively, and the intermediate water outlets (30) being connected to the heat pump unit (1).

7. A sewage source heat pump cooling and heating energy-saving equipment according to claim 6, characterized in that: A cleaning frame (32) is slidably disposed in the sewage pipe, a cleaning brush (33) is disposed on the outer peripheral side wall of the cleaning frame (32), the cleaning brush (33) is slidably connected to the inner wall of the sewage pipe, and a driving component (34) for driving the cleaning frame (32) is disposed on the machine body.

8. The sewage source heat pump cooling and heating energy-saving equipment according to claim 7 is characterized by: The driving assembly (34) comprises a screw rod (35) and a second motor (36); the screw rod (35) rotates in the sewage pipe; the second motor (36) is fixedly mounted on the outer wall of the machine body; one end of the screw rod (35) passes through the machine body and is fixedly connected to the second motor (36); and the cleaning frame (32) is threadedly connected to the screw rod (35).

9. A sewage source heat pump cooling and heating energy-saving equipment according to claim 8, characterized in that: A telescopic groove (37) is provided on the side wall of the cleaning frame (32), a spring (38) is arranged in the telescopic groove (37), the cleaning brush (33) comprises a connecting block (40), a connecting plate (39) and bristles (41), the connecting plate (39) is fixedly connected to the connecting block (40), the bristles (41) are fixedly connected to the connecting plate (39), the connecting plate (39) abuts against the side wall of the cleaning frame (32), the connecting block (40) slides in the telescopic groove (37), and the two ends of the spring (38) are respectively fixedly connected to the connecting block (40) and the inner wall of the telescopic groove (37).

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