Sewage pretreatment device for sewage source heat pump

Abstract

The invention discloses a sewage pretreatment device for a sewage source heat pump, and particularly relates to the field of sewage treatment.The sewage pretreatment device comprises a heat pump assembly and a pretreatment assembly, and the water outlet end of the pretreatment assembly communicates with the water inlet end of the heat pump assembly; the pretreatment assembly comprises a tank body which is provided with a water inlet pipe, a filtering assembly and a water drainage pipe. By arranging the deslagging mechanism, sediments on the filtering assembly are taken away and guided through water spraying, so that the situations that the sediments are broken during cleaning, broken sediment fine particles penetrate through the filtering assembly and are directly conveyed into the heat pump assembly, and scaling is generated in the heat pump assembly can be avoided, and the service life of the heat pump assembly is prolonged. The problems that the heat conduction efficiency of a heat exchanger in the heat pump assembly is reduced, the energy consumption of a heat pump is increased, and the operation efficiency is reduced are solved, sewage purification and sewage conveying are not affected in the sediment cleaning process, and the effect of cleaning the sediment without shutdown can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and more particularly to a sewage pretreatment device for a sewage source heat pump. Background Art

[0002] A sewage source heat pump is a highly efficient and energy-saving device that uses municipal sewage as a heat source, converts energy through heat pump technology, and achieves heating, cooling, and domestic hot water supply. It is a type of renewable energy utilization technology. Currently, sewage source heat pumps usually need to pre-treat municipal sewage before inputting it for heat exchange to reduce the impact of impurities in municipal sewage on the sewage source heat pump.

[0003] The sewage source heat pump is used to exchange heat for urban sewage, which can improve the utilization rate of resources. It can also purify sewage to avoid water pollution caused by direct discharge. According to GB / T19923-2024, calcium and magnesium ions in urban sewage are usually purified by chemical precipitation. It mainly reacts with calcium and magnesium ions in sewage by adding reaction agents to urban sewage. However, precipitation is usually generated during the reaction process. At present, the precipitation is usually filtered through a filter screen set in the treatment tank. However, after long-term use, the filter screen usually needs to be stopped to purify the filter screen. The sediment on the filter is cleaned, but the cleaning process usually adopts a scraper to move along the surface of the filter to scrape the sediment from the filter. However, in the scraping process, the sediment stuck in the filter holes of the filter is easy to be broken. When the sediment is broken, the fine particles formed by the scraping are easy to cause the broken sediment fine particles to pass through the filter directly into the sewage source heat pump, causing these sediments to accumulate on the surface of the heat exchanger in the sewage source heat pump and gradually accumulate on the pipe wall to form scale, which significantly reduces the heat conduction efficiency, increases the energy consumption of the heat pump, and reduces the operating efficiency. Summary of the Invention

[0004] The present invention provides a sewage pretreatment device for a sewage source heat pump, and aims to solve the problem that, during the existing sewage pretreatment process, when cleaning the sediment generated during the treatment process, the sediment is easily broken, and the fine particles of the broken sediment can easily pass through the filter and be directly transported to the sewage source heat pump, causing these sediments to accumulate on the surface of the heat exchanger in the sewage source heat pump and gradually accumulate on the pipe wall to form scale, resulting in a significant reduction in heat conduction efficiency, an increase in energy consumption of the heat pump, and a decrease in operating efficiency.

[0005] To achieve the above object, the present invention provides the following technical solution: a sewage pretreatment device for a sewage source heat pump, comprising: a heat pump component and a pretreatment component, wherein the water outlet of the pretreatment component is connected to the water inlet of the heat pump component;

[0006] The pretreatment component includes a tank body, which is provided with a water inlet pipe, a filter component and a drain pipe. The tank body is also provided with a dosing pipe for adding a reaction agent into the tank body. The tank body is provided with a stirring component for stirring the sewage and the reaction agent.

[0007] A partition assembly is provided in the tank body, which includes a partition plate fixedly provided in the tank body, and a plurality of opening and closing plates are hingedly provided in the partition plate. The partition plate and the opening and closing plates divide the tank body into a reaction zone and a filtration zone. The reaction zone and the filtration zone are separated by the flipping of the opening and closing plates.

[0008] The tank body is also provided with a guide plate that can move along the surface of the filter assembly. The tank body is also provided with a slag discharge mechanism, which includes a slag guide assembly and a linear drive assembly. The slag guide assembly is used to spray water onto the filter assembly to remove the sediment on the filter assembly from the surface of the filter assembly. The linear drive assembly is used to drive the water outlet end of the slag guide assembly to move linearly at the bottom of the filter assembly, and the linear drive assembly can drive the guide plate to move along the surface of the filter assembly, guiding the sediment removed from the filter assembly to move to one side of the tank body. A slag discharge pipe is also provided on one side of the tank body, and the slag discharge pipe is used to discharge the sediment.

[0009] In a preferred embodiment, the stirring assembly includes a stirring shaft rotatably arranged in the tank body, a plurality of stirring rods are fixedly arranged on the stirring shaft, a plurality of stirring rods are each provided with a plurality of liquid outlet holes, and the end of the stirring shaft is rotatably connected to the dosing pipe, a rotary drive assembly is provided on the tank body, and the output section of the rotary drive assembly is connected to the stirring shaft.

[0010] In a preferred embodiment, the slag guiding assembly includes an infusion assembly, the water inlet and water outlet of the infusion assembly both extend into the tank body, and the water outlet of the infusion assembly is connected to a hose, the water outlet of the hose is connected to a diversion pipe, and the diversion pipe is connected to multiple nozzles, and the water outlet ends of the multiple nozzles all point to the filter assembly.

[0011] In a preferred embodiment, the linear drive assembly includes a driving member, a screw is installed at the output end of the driving member, the upper thread of the screw is connected with movable plate one and movable plate two, the shunt pipe is fixedly set on movable plate one, and a sliding shaft is fixedly set on one side of movable plate two, one end of the sliding shaft is set in the tank body and installed on one side of the guide plate.

[0012] In a preferred embodiment, the filter assembly is arranged at an angle, and an adjustment assembly is provided on one side of the guide plate, the adjustment assembly includes a connecting block fixedly provided at the end of the sliding shaft, and a fixed block is fixedly provided on one side of the guide plate, the fixed block is slidably sleeved on the connecting block, and an elastic member 1 is also provided on the connecting block, and the elastic member 1 is in a stretched state in the initial state.

[0013] In a preferred embodiment, the guide plate includes a middle plate and side plates slidably arranged on both sides of the middle plate, a telescopic component is arranged in the guide plate, the telescopic component includes a bottom groove opened at the bottom of the middle plate, and a slide plate is fixedly arranged on the side where the two side plates are close to each other, the two slide plates are slidably arranged in the bottom groove, and an elastic member 2 is arranged between the two slide plates, and the elastic member 2 is in a compressed state in the initial state.

[0014] In a preferred embodiment, a buffer assembly is further provided in the tank body, and the buffer assembly includes a plurality of buffer plates arranged below the partition plate, a plurality of guide holes are opened on the plurality of buffer plates, and the plurality of buffer plates are evenly distributed in the vertical direction.

[0015] In a preferred embodiment, a receiving groove is provided at the bottom of the partition plate, and an adjusting mechanism is further provided on the tank body, and the adjusting mechanism is used to store the plurality of buffer plates into the receiving groove.

[0016] In a preferred embodiment, the adjustment mechanism includes a power component, a connecting shaft is installed at the output end of the power component, a winding wheel is fixedly provided on the connecting shaft, a plurality of annular grooves are provided in sequence along the axial direction on the surface of the winding wheel, and connecting members are fixedly provided in the plurality of annular grooves, and a sliding rod is fixedly provided at one end of the plurality of connecting members away from the winding wheel, and the plurality of sliding rods are all slidably provided in the partition plate, and the other ends of the plurality of sliding rods are fixedly connected to the corresponding buffer plate.

[0017] In a preferred embodiment, the multiple annular grooves formed on the winding wheel are evenly arranged in the horizontal direction, and the diameters of the annular grooves are different.

[0018] The beneficial effects of the present invention are:

[0019] The present invention provides a slag discharge mechanism to remove and guide the sediment on the filter assembly by spraying water, thereby avoiding the sediment from being broken during cleaning, resulting in the fine particles of the broken sediment being directly transported through the filter assembly to the heat pump assembly, and causing scaling in the heat pump assembly, causing the heat exchanger in the heat pump assembly to reduce the heat conduction efficiency, resulting in increased energy consumption of the heat pump and decreased operating efficiency. In addition, the process of cleaning the sediment does not affect the purification and transportation of the sewage, and the effect of cleaning the sediment without stopping the machine can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 The cross-sectional structure of the tank body of the present invention is shown as follows Figure 1 .

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the stirring assembly of the present invention.

[0023] Figure 4 It is a schematic diagram of the top cross-sectional structure of the tank body of the present invention.

[0024] Figure 5 The cross-sectional structure of the tank body of the present invention is shown as follows Figure 2 .

[0025] Figure 6 for Figure 2 Enlarged view of part A.

[0026] Figure 7 This is a schematic diagram of the working state of the telescopic assembly of the present invention.

[0027] Figure 8 for Figure 7 Magnified view of part B.

[0028] Figure 9 The cross-sectional structure of the tank body of the present invention is shown as follows Figure 3 .

[0029] Figure 10 The cross-sectional structure of the tank body of the present invention is shown as follows Figure 4 .

[0030] Figure 11 for Figure 10 Magnified view of part C.

[0031] The figures are marked as follows: 1. heat pump assembly; 2. pretreatment assembly; 21. tank; 22. water inlet pipe; 23. stirring assembly; 231. stirring shaft; 232. stirring rod; 2321. liquid outlet; 233. dosing pipe; 234. rotary drive assembly; 24. filter assembly; 25. drain pipe; 3. partition assembly; 31. partition plate; 311. opening; 312. storage tank; 32. opening and closing plate; 4. guide plate; 41. middle plate; 42. side plate; 5. slag discharge mechanism; 51. slag guide assembly; 511. infusion assembly; 512. hose; 5 13. Diverter pipe; 514. Nozzle; 52. Linear drive assembly; 521. Drive member; 522. Screw rod; 523. Moving plate 1; 524. Moving plate 2; 53. Adjustment assembly; 531. Connecting block; 532. Fixed block; 533. Elastic member 1; 6. Telescopic assembly; 61. Bottom groove; 62. Slide plate; 63. Elastic member 2; 7. Buffer assembly; 71. Buffer plate; 711. Guide hole; 8. Adjustment mechanism; 81. Power component; 82. Connecting shaft; 83. Winding wheel; 831. Ring groove; 84. Connecting member; 85. Slide rod. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0033] Refer to the instruction manual Figures 1 to 5 A sewage pretreatment device for a sewage source heat pump comprises: a heat pump component 1 and a pretreatment component 2, wherein the water outlet of the pretreatment component 2 is connected to the water inlet of the heat pump component 1, and the pretreatment component 2 is used to pre-purify the sewage to be passed into the heat pump component 1;

[0034] The pretreatment component 2 includes a tank body 21, on which a water inlet pipe 22, a filter component 24, and a drain pipe 25 are provided. The tank body 21 is also provided with a dosing pipe 233 for adding a reaction agent into the tank body 21. The tank body 21 is provided with a stirring component 23 for stirring the sewage and the reaction agent.

[0035] A partition assembly 3 is provided in the tank body 21. The partition assembly 3 includes a partition plate 31 fixedly provided in the tank body 21. A plurality of opening and closing plates 32 are hingedly provided in the partition plate 31. The partition plate 31 and the opening and closing plates 32 divide the tank body 21 into a reaction zone and a filtration zone. The reaction zone and the filtration zone are separated by the flipping of the opening and closing plates 32.

[0036] A guide plate 4 that can move along the surface of the filter component 24 is also provided in the tank body 21. A slag discharge mechanism 5 is also provided on the tank body 21. The slag discharge mechanism 5 includes a slag guide component 51 and a linear drive component 52. The slag guide component 51 is used to spray water onto the filter component 24 to remove the sediment on the filter component 24 from the surface of the filter component 24. The linear drive component 52 is used to drive the water outlet end of the slag guide component 51 to move linearly at the bottom of the filter component 24, and the linear drive component 52 can drive the guide plate 4 to move along the surface of the filter component 24, guiding the sediment removed from the filter component 24 to move to one side of the tank body 21. A slag discharge pipe is also provided on one side of the tank body 21 for discharging the sediment.

[0037] It should be noted that the area above the partition component 3 is the reaction zone, and the area below the partition component 3 is the filtration zone, and the filtration component 24 can use a filter mesh, and the reaction agent can be lime milk, soda, etc., so that the calcium and magnesium ions are respectively generated into insoluble hydroxides or carbonate precipitates. A plurality of openings 311 are provided on the partition plate 31, and a plurality of opening and closing plates 32 are located in the corresponding openings 311, and when the opening and closing plates 32 are closed, the opening and closing plates 32 can be fitted with the inner wall of the opening 311, and the opening and closing plates 32 can be driven to rotate by a motor. When sewage is introduced, the opening and closing plates 32 are driven to close by the motor, so that the sewage only enters the reaction zone, and at the same time, chemical agents are added into the reaction zone to make the calcium and magnesium ions in the sewage react with the chemical agents to generate precipitates. With the continuous input of sewage and When adding chemical agents, when the sewage in the reaction zone reaches a certain height, the amount of sewage in the reaction zone needs to be greater than the amount of sewage that can be held between the bottom of the tank body 21 and the filter assembly 24, so as to prevent the sewage from passing through the filter assembly 24 and entering the bottom of the tank body 21 without undergoing reaction. At this time, the input of sewage and chemical agents can be stopped, and then the opening and closing plate 32 is driven by a motor to flip, so that the purified sewage and sediment can flow from multiple openings 311 to the filter area, so that the sediment generated by the reaction can be filtered by the filter assembly 24 and remain on the surface of the filter assembly 24, and the sewage after reaction and filtration can enter the bottom of the tank body 21, and a water pump can be set at the water outlet end of the drain pipe 25, so that the filtered sewage can be transported to the heat pump assembly 1 for heat exchange treatment through the water pump.

[0038] The specific implementation scenario is as follows: first, sewage is input into the tank body 21 through the water inlet pipe 22, so that the sewage enters the reaction zone, and then chemical agents are added into the tank body 21. Then, the sewage and the chemical agents are stirred and reacted through the stirring component 23. When the sewage in the reaction zone reaches a certain height, the opening and closing plate 32 is driven to flip, so that the sewage and sediment can flow to the filtration zone through the opening 311, and the filter component 24 filters the sediment in the sewage, and the filtered sewage can be passed through the drain pipe 25 to the heat pump component 1 for heat exchange treatment. After a period of use, when a lot of sediment remains on the filter component 24, and these sediments have problems affecting filtration, the reaction zone and the filtration zone can be separated by driving multiple opening and closing plates 32 to flip and close. Then, water can be sprayed from the bottom of the filter assembly 24 toward the filter assembly 24 through the slag guide assembly 51, so that the sediment on the filter assembly 24 can be taken away from the filter assembly 24 by spraying water. At the same time, the output end of the slag guide assembly 51 and the guide plate 4 are driven to move in the tank body 21 by the linear drive assembly 52, so that the sediment on the filter assembly 24 can be guided to one side of the filter assembly 24. Finally, the sediment can be discharged from the tank body 21 by opening the valve on the slag discharge pipe, so as to avoid the sediment being scraped off directly by scraping in the process of guiding and discharging the sediment, thereby avoiding the sediment being scraped off and the fine particles of the scraped sediment being directly transported to the heat pump assembly 1 through the filter assembly 24, thereby causing scaling problems in the heat pump assembly 1.

[0039] It should also be noted that in this process, since the reaction zone and the filtration zone are separated by the partition component 3, sewage can still be introduced into the reaction zone and chemical agents can be added for reaction. At the same time, the filtered sewage can also be transported to the heat pump component 1 through the drain pipe 25. Therefore, the purification of sewage and the transportation and heat exchange to the heat pump component 1 can be still not affected in the process of guiding the sediment to be discharged from the tank body 21, which can achieve the effect of cleaning the sediment without stopping the machine. In addition, while guiding the sediment to move, since the filtered sewage is still being discharged to the heat pump component 1 through the drain pipe 25, the liquid level in the reaction zone is continuously decreasing. Therefore, as the liquid level drops, when the liquid level drops to the liquid level of the filter component 24, the valve of the slag discharge pipe can be opened to directly discharge the sediment.

[0040] Further, refer to the instructions attached Figure 3 and Figure 4 The stirring assembly 23 includes a stirring shaft 231 rotatably arranged in the tank body 21, and a plurality of stirring rods 232 are fixedly arranged on the stirring shaft 231. The plurality of stirring rods 232 are each provided with a plurality of liquid outlet holes 2321, and the end of the stirring shaft 231 is rotatably connected to the dosing pipe 233. A rotation drive assembly 234 is provided on the tank body 21, and the output end of the rotation drive assembly 234 is connected to the stirring shaft 231.

[0041] It should be noted that the rotation drive component 234 can adopt a motor, and the output end of the motor can be connected to the stirring shaft 231 through gear transmission. By driving the stirring shaft 231 to rotate, the sewage and the reaction agent can be stirred and mixed through the stirring rod 232, and the reaction agent can be introduced into the dosing pipe 233 to discharge the reaction agent from the liquid outlet 2321 into the reaction zone. Adding the reaction agent in this direction can effectively assist the uniform addition of the reaction agent and ensure its reaction and mixing with the calcium and magnesium ions in the sewage.

[0042] Further, refer to the instructions attached Figure 5 The slag guiding component 51 includes an infusion component 511, the water inlet and water outlet of the infusion component 511 both extend into the tank body 21, and the water outlet end of the infusion component 511 is connected to a hose 512, the water outlet end of the hose 512 is connected to a diversion pipe 513, and the diversion pipe 513 is connected to multiple nozzles 514, and the water outlet ends of the multiple nozzles 514 all point to the filter component 24.

[0043] It should be noted that the slag guiding component 51 can be a water pump, which draws sewage from the bottom of the filter area through the slag guiding component 51 and transports it to the diversion pipe 513 through the hose 512, so that water can be sprayed from the bottom of the filter component 24 through multiple nozzles 514 to the filter component 24, so as to achieve the effect of removing the sediment from the filter component 24.

[0044] Further, refer to the instructions attached Figure 5 The linear drive assembly 52 includes a driving member 521, and a screw rod 522 is installed at the output end of the driving member 521. The upper thread of the screw rod 522 is connected with the movable plate 1 523 and the movable plate 2 524. The shunt pipe 513 is fixedly set on the movable plate 1 523, and a sliding shaft is fixedly set on one side of the movable plate 2 524. One end of the sliding shaft is set in the tank body 21 and is installed on one side of the guide plate 4.

[0045] It should be noted that the driving member 521 is a motor, which drives the screw rod 522 to rotate through the driving member 521, and the movable plate 1 523 can be connected to the threaded connection of the screw rod 522, so that the nozzle 514 can move linearly in the tank body 21, so that the sediment on the filter component 24 can be fully removed from the surface of the filter component 24, and the sediment can float in the sewage in the filter area, and the movable plate 2 524 can be connected to the threaded connection of the screw rod 522, so that the guide plate 4 can be pushed to move on the surface of the filter component 24 through the sliding shaft, so that the sediment removed from the surface of the filter component 24 can be guided to one side of the tank body 21 through the guide plate 4, and finally discharged through the slag discharge pipe.

[0046] In order to facilitate the discharge of sediment, refer to the instructions. Figure 5 and Figure 6The filter assembly 24 is set to an inclined setting, and an adjustment assembly 53 is provided on one side of the guide plate 4. The adjustment assembly 53 includes a connecting block 531 fixedly set at the end of the sliding shaft, and a fixed block 532 is fixedly provided on one side of the guide plate 4. The fixed block 532 is slidably sleeved on the connecting block 531, and an elastic member 533 is also provided on the connecting block 531. In the initial state, the elastic member 533 is in a stretched state.

[0047] It should be noted that the elastic member 533 is a spring, and the initial state is the position of the guide plate 4 before cleaning the sediment as shown in the slag discharge mechanism 5 in the figure. When the guide plate 4 is in this position, the spring is in a stretched state, so that when the guide plate 4 is pushed to move by the sliding shaft, the bottom of the guide plate 4 can always be in contact with the surface of the filter assembly 24 through the elastic deformation of the spring, so that the guide plate 4 can move along the inclined surface of the filter assembly 24, thereby allowing the guide plate 4 to move along the inclined surface of the filter assembly 24.

[0048] Since the tank body 21 is in the shape of a tank, in order to ensure that both sides of the guide plate 4 disposed in the tank body 21 can always fit in with the inner wall of the tank body 21 and prevent sediment from flowing out from both sides, a telescopic assembly 6 is provided so that both sides of the guide plate 4 can be telescoped as the guide plate 4 moves in the tank body 21 to solve the above problem. For details, please refer to the attached manual. Figure 7 and Figure 8 The guide plate 4 includes a middle plate 41 and side plates 42 slidably arranged on both sides of the middle plate 41. A telescopic component 6 is arranged in the guide plate 4. The telescopic component 6 includes a bottom groove 61 opened at the bottom of the middle plate 41, and a slide plate 62 is fixedly arranged on the side where the two side plates 42 are close to each other. The two slide plates 62 are both slidably arranged in the bottom groove 61, and an elastic member 2 63 is arranged between the two slide plates 62. In the initial state, the elastic member 2 63 is in a compressed state.

[0049] It should be noted that the elastic member 63 is a spring, and the initial state is as follows: Figure 7 As shown, the guide plate 4 is in the position before the sediment is cleaned. When the guide plate 4 is in this position, the spring is in a compressed state. When the guide plate 4 is pushed to move in the tank body 21, the two side plates 42 can move away from the middle plate 41 through the elastic deformation of the spring, and always fit with the inner wall of the tank body 21 to prevent the sediment from flowing from one side of the guide plate 4 to the other side.

[0050] In the above technical solution, after the sediment is cleaned, it is necessary to drive the opening and closing plate 32 to flip open again, so that the sewage and sediment in the reaction zone can flow to the sediment filtration zone and be filtered by the filter assembly 24 in the filtration zone. However, in this process, when the opening and closing plate 32 is opened instantly, the sewage in the reaction zone will instantly enter the filtration zone, and in this process, part of the sewage in the filtration zone has been transported to the heat pump assembly 1. Therefore, the sewage level in the filtration zone is low at this time, so that the sewage in the reaction zone will instantly enter the filtration zone, causing the sediment to be broken into fine particles due to the instantaneous impact, and pass through the filter assembly 24 and be transported to the heat pump assembly 1 together with the purified sewage, causing these sediments to accumulate on the heat exchanger surface in the heat pump assembly 1 and gradually accumulate on the pipe wall to form scale, resulting in a significant reduction in heat conduction efficiency, resulting in increased energy consumption of the heat pump and decreased operating efficiency. For this reason, the present invention also proposes a buffer assembly 7, which is used to buffer the sewage entering the filtration zone from the reaction zone when the opening and closing plate 32 is opened, so as to reduce the problem of sediment breakage caused by instantaneous impact. For details, refer to the attached manual. Figure 9 A buffer assembly 7 is also provided in the tank body 21. The buffer assembly 7 includes a plurality of buffer plates 71 provided below the partition plate 31. A plurality of guide holes 711 are provided on the plurality of buffer plates 71, and the plurality of buffer plates 71 are evenly distributed in the vertical direction.

[0051] It should be noted that, in the process of flipping the opening and closing plate 32, the opening and closing plate 32 is initially driven to flip at a smaller angle, and as the sewage flows in, the opening and closing plate 32 is gradually driven to flip at a larger angle. At the same time, the multiple buffer plates 71 are provided to buffer the sewage entering the filtration area, thereby reducing the problem of sediment breakage caused by instantaneous impact.

[0052] Since the plurality of buffer plates 71 are all arranged in the filter area, the existence of the buffer plates 71 will interfere with the movement of the guide plate 4. In order to avoid the above problem, the present invention proposes an adjustment mechanism 8 for storing the plurality of buffer plates 71 before the guide plate 4 moves to avoid interference. For details, refer to the attached manual. Figure 10 and Figure 11The bottom of the partition plate 31 is provided with a storage groove 312, and the tank body 21 is also provided with an adjusting mechanism 8, which is used to store multiple buffer plates 71 into the storage groove 312. The adjusting mechanism 8 includes a power component 81, and the output end of the power component 81 is installed with a connecting shaft 82. A winding wheel 83 is fixedly provided on the connecting shaft 82. The surface of the winding wheel 83 is provided with multiple annular grooves 831 in sequence along the axial direction, and multiple connecting members 84 are fixedly provided in the multiple annular grooves 831. The ends of the multiple connecting members 84 away from the winding wheel 83 are fixedly provided with sliding rods 85, and the multiple sliding rods 85 are all slidably provided in the partition plate 31, and the other ends of the multiple sliding rods 85 are fixedly connected to the corresponding buffer plates 71. The multiple annular grooves 831 provided on the winding wheel 83 are evenly arranged in the horizontal direction, and the diameters of the annular grooves 831 are different.

[0053] It should be noted that the power component 81 is a motor, which drives the connecting shaft 82 to rotate, so that the connecting shaft 82 drives the winding wheel 83 to rotate, so that the winding wheel 83 can reel in the connecting member 84 during the rotation process, thereby pulling the buffer plate 71 upward until multiple buffer plates 71 are all stored in the storage groove 312, thereby avoiding the interference between the guide plate 4 and the buffer plate 71, and through the different diameters of each annular groove 831, when the buffer plate 71 is lowered, the multiple buffer plates 71 can be kept at different heights to ensure the buffering effect on sewage.

[0054] It should also be noted that the adjustment mechanism 8 can be provided in two groups, and the two groups of connecting shafts 82 are connected via a pulley transmission, so as to ensure the stable movement of the buffer plate 71.

[0055] The above embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A sewage pretreatment device for a sewage source heat pump, characterized in that: include: A heat pump component and a pretreatment component, wherein the water outlet of the pretreatment component is connected to the water inlet of the heat pump component; The pretreatment component includes a tank body, on which a water inlet pipe, a filter component and a drain pipe are provided, a dosing pipe is also provided on the tank body, and a stirring component is provided in the tank body; The tank body is provided with a partition assembly, the partition assembly includes a partition plate fixedly provided in the tank body, a plurality of opening and closing plates are hingedly provided in the partition plate, the partition plate and the opening and closing plates divide the tank body into a reaction zone and a filtration zone, and the reaction zone and the filtration zone are separated by turning over the opening and closing plates; A guide plate that can move along the surface of the filter assembly is also provided in the tank body, and a slag discharge mechanism is also provided on the tank body. The slag discharge mechanism includes a slag guide assembly and a linear drive assembly. The slag guide assembly is used to spray water to the filter assembly to remove the sediment on the filter assembly from the surface of the filter assembly. The linear drive assembly is used to drive the water outlet end of the slag guide assembly to move linearly at the bottom of the filter assembly, and the linear drive assembly can drive the guide plate to move along the surface of the filter assembly to guide the sediment removed from the filter assembly to move to one side of the tank body. A slag discharge pipe is also provided on one side of the tank body, and the slag discharge pipe is used to discharge the sediment.

2. The sewage pretreatment device for a sewage source heat pump according to claim 1, characterized in that: The stirring assembly includes a stirring shaft rotatably arranged in the tank body, a plurality of stirring rods are fixedly arranged on the stirring shaft, a plurality of stirring rods are each provided with a plurality of liquid outlet holes, and the end of the stirring shaft is rotatably connected to the dosing pipe, and a rotary drive assembly is provided on the tank body, and the output end of the rotary drive assembly is connected to the stirring shaft.

3. The sewage pretreatment device for a sewage source heat pump according to claim 2, characterized in that: The slag guiding assembly includes an infusion assembly, the water inlet and water outlet of the infusion assembly both extend into the tank body, and the water outlet of the infusion assembly is connected to a hose, the water outlet of the hose is connected to a diversion pipe, and the diversion pipe is connected to multiple nozzles, and the water outlet ends of the multiple nozzles all point to the filter assembly.

4. The sewage pretreatment device for a sewage source heat pump according to claim 3, characterized in that: The linear drive assembly includes a driving member, a screw rod is installed at the output end of the driving member, the upper thread of the screw rod is connected to the movable plate 1 and the movable plate 2, the shunt pipe is fixedly set on the movable plate 1, and a sliding shaft is fixedly set on one side of the movable plate 2, one end of the sliding shaft is set in the tank body and installed on one side of the guide plate.

5. The sewage pretreatment device for a sewage source heat pump according to claim 4, characterized in that: The filter assembly is arranged at an angle, and an adjustment assembly is provided on one side of the guide plate. The adjustment assembly includes a connecting block fixedly arranged at the end of the sliding shaft, and a fixed block is fixedly provided on one side of the guide plate. The fixed block is slidably sleeved on the connecting block, and an elastic member 1 is also provided on the connecting block. In the initial state, the elastic member 1 is in a stretched state.

6. The sewage pretreatment device for a sewage source heat pump according to claim 5, characterized in that: The guide plate includes a middle plate and side plates slidably arranged on both sides of the middle plate. A telescopic component is arranged in the guide plate. The telescopic component includes a bottom groove opened at the bottom of the middle plate, and a slide plate is fixedly arranged on the side where the two side plates are close to each other. The two slide plates are slidably arranged in the bottom groove, and an elastic member 2 is arranged between the two slide plates. In the initial state, the elastic member 2 is in a compressed state.

7. The sewage pretreatment device for a sewage source heat pump according to claim 6, characterized in that: A buffer assembly is further provided in the tank body, and the buffer assembly includes a plurality of buffer plates provided below the partition plate, a plurality of guide holes are provided on the plurality of buffer plates, and the plurality of buffer plates are evenly distributed in the vertical direction.

8. The sewage pretreatment device for a sewage source heat pump according to claim 7, characterized in that: A receiving groove is provided at the bottom of the partition plate, and an adjusting mechanism is further provided on the tank body, and the adjusting mechanism is used to store a plurality of buffer plates into the receiving groove.

9. The sewage pretreatment device for a sewage source heat pump according to claim 8, characterized in that: The adjusting mechanism includes a power component, a connecting shaft is installed at the output end of the power component, a winding wheel is fixedly provided on the connecting shaft, a plurality of annular grooves are provided in sequence along the axial direction on the surface of the winding wheel, a connecting piece is fixedly provided in each of the plurality of annular grooves, a sliding rod is fixedly provided at one end of the plurality of connecting pieces away from the winding wheel, and the plurality of sliding rods are all slidably provided in the partition plate, and the other ends of the plurality of sliding rods are fixedly connected to the corresponding buffer plates.

10. The sewage pretreatment device for a sewage source heat pump according to claim 9, characterized in that: The multiple annular grooves formed on the winding wheel are evenly arranged in the horizontal direction, and the diameters of the annular grooves are different.

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