Sewage source heat pump with sewage treatment device

Abstract

The present application relates to a sewage source heat pump, especially to a sewage source heat pump with sewage treatment device. The present application provides a sewage source heat pump with sewage treatment device, which comprises a support seat and a water source heat pump machine, the support seat is fixedly installed with the water source heat pump machine for cold and heat exchange, and further comprises a sewage filtering mechanism, the water source heat pump machine is provided with the sewage filtering mechanism for filtering sewage. The present application filters the hair and other impurities in the sewage twice through the sieve plate one and the sieve plate two, so as to greatly reduce the content of impurities in the sewage, and the sieve plate one and the sieve plate two are driven to rotate by the double-head motor, so that the comb plate one and the comb plate two can scrape the hair and other impurities on the sieve plate one and the sieve plate two, preventing blockage, and finally the sewage is filtered for the third time through the sieve barrel, so as to remove the impurities in the sewage and ensure the normal operation of the water source heat pump machine.

Description

Technical Field

[0001] This invention relates to a wastewater source heat pump, and more particularly to a wastewater source heat pump with a wastewater treatment device. Background Technology

[0002] The main working principle of a water source heat pump is to use a water source heat pump compressor system to consume a small amount of electricity to "extract" low-grade heat energy stored in water in winter to provide heating for users, and to "extract" indoor heat and release it into the water in summer, thereby reducing the room temperature and achieving a cooling effect.

[0003] After treatment, the water temperature of wastewater is between 13 and 32°C throughout the year. It is a renewable heat energy resource containing abundant low-grade heat energy. Water source heat pump systems can use wastewater with poor water quality as a heat source for winter heating, summer cooling, and year-round domestic hot water supply. It has the characteristics of stable heat output and high unit performance. If wastewater source heat pump technology is adopted, the energy in the discharged wastewater can be fully recovered, reducing operating costs and thus having good economic benefits.

[0004] Currently, although it is possible to use the heat pump principle to use sewage as a heat source and extract heat for winter heating, summer cooling and year-round domestic hot water supply, thereby realizing sewage waste heat recovery, sewage discharged in daily life often contains impurities such as hair and silt. Direct use can easily cause equipment blockage, thus affecting the use of the equipment and even causing equipment damage. Summary of the Invention

[0005] In order to overcome the disadvantage that directly using domestic sewage for waste heat recovery can easily cause equipment blockage, thereby affecting the use of the equipment or even causing damage, the present invention provides a sewage source heat pump with a sewage treatment device to solve the above problems.

[0006] The technical implementation of the present invention is as follows: a sewage source heat pump with a sewage treatment device includes a support base and a water source heat pump. The water source heat pump for heat exchange is fixedly installed on the support base, and the device also includes a sewage filtration mechanism. The water source heat pump is equipped with a sewage filtration mechanism for filtering sewage.

[0007] As a preferred embodiment of the present invention, the wastewater filtration mechanism includes a support frame, a housing, a screen barrel, and a transmission pipe. The support frame is fixedly installed on the water source heat pump, and the housing is fixedly installed on the support frame. A connection hole is opened at the center of the top surface of the housing. The screen barrel for filtering wastewater is fixedly installed inside the housing. The transmission pipe for transmitting the filtered wastewater is fixedly connected to the housing, and the other end of the transmission pipe is fixedly connected to the water source heat pump.

[0008] As a preferred embodiment of the present invention, it further includes a hair filtering assembly, which includes a fixing rod, a dual-head motor, a first sieve plate, and a second sieve plate. The fixing rod is fixedly installed inside the housing, and the dual-head motor is fixedly installed on the fixing rod. The first sieve plate for the first filtration of impurities is rotatably installed inside the housing, and the first sieve plate is fixedly connected to the output shaft on the upper side of the dual-head motor. The second sieve plate for the second filtration of impurities is rotatably installed inside the housing, and the second sieve plate is located directly below the first sieve plate, and the second sieve plate is fixedly connected to the output shaft on the lower side of the dual-head motor. The gap between the holes in the first sieve plate is larger than the gap between the holes in the second sieve plate.

[0009] As a preferred embodiment of the present invention, it further includes a mounting post, a first comb plate, and a second comb plate. The mounting post is fixedly installed inside the outer casing, and the first comb plate for scraping hair is fixedly connected to the mounting post. The first comb plate is located above the first sieve plate and is slidably connected to the first sieve plate. The second comb plate for scraping hair is fixedly connected to the fixing rod, and the second comb plate is located above the second sieve plate and is slidably connected to the second sieve plate.

[0010] As a preferred technical solution of the present invention, it further includes a mud scraping assembly, which includes a threaded rod and a mud scraping ring. The threaded rod is rotatably installed inside the screen barrel and is fixedly connected to the output shaft on the lower side of the double-headed motor. The mud scraping ring for scraping mud and sand is slidably installed inside the screen barrel. The mud scraping ring is threadedly connected to the threaded rod and has a groove on it. Several mud discharge holes are opened in the groove of the mud scraping ring.

[0011] As a preferred embodiment of the present invention, the threaded rod has a bidirectional thread.

[0012] As a preferred embodiment of the present invention, it further includes a dredging assembly, which includes a telescopic rod, a slider, a top block, a return spring, a guide rod, and a rebound spring. A guide rod for guiding is fixedly connected to the second screen plate. A rebound spring is fixedly provided between the guide rod and the second screen plate. A telescopic rod is fixedly connected to the lower end of the guide rod. The telescopic rod is slidably connected to the second screen plate. A slider is fixedly connected to each of the two telescopic rods. The two sliders are slidably connected to the groove of the sludge scraper ring. A top block is slidably connected to each of the two sliders. A return spring is fixedly provided between the top block and the corresponding slider. When the slider moves to the sludge discharge hole, the top block will push downward.

[0013] As a preferred technical solution of the present invention, it further includes a mud discharge assembly, which includes a telescopic tube, a connecting ring and a mud discharge pipe. The telescopic tube is fixedly connected to the mud discharge hole of the mud scraper ring, and the connecting ring is fixedly installed on the outer shell. Each telescopic tube passes through the outer shell and is fixedly connected to the connecting ring. The connecting ring is fixedly connected to a mud discharge pipe for discharging mud and sand outward.

[0014] The beneficial effects of this invention are as follows: 1. This invention filters hair and other impurities in sewage twice through screen plate one and screen plate two, thereby greatly reducing the impurity content in sewage. The screen plate one and screen plate two are rotated by a dual-head motor, so that comb plate one and comb plate two can scrape the hair and other impurities on screen plate one and screen plate two to prevent clogging. Finally, the sewage is filtered a third time through the screen bucket to remove impurities in sewage and ensure the normal operation of the water source heat pump.

[0015] 2. This invention uses a dual-head motor to drive a scraper ring to move back and forth along a threaded rod inside the screen barrel, so that the scraper ring can scrape off the mud and sand and other impurities remaining on the inner side wall of the screen barrel, preventing the screen barrel from being blocked. When the screen plate rotates, it drives the slider to move along the slide groove, so that the mud and sand and other impurities can be discharged out through the mud discharge hole, preventing accumulation and blockage.

[0016] 3. The present invention uses the elasticity of the reset spring to drive the top block to clear the mud discharge hole, preventing mud and other impurities from clogging the mud discharge hole. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the wastewater filtration mechanism of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the hair filtering component of the present invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the mounting column, comb plate one, and comb plate two of the present invention.

[0021] Figure 5 This is a cross-sectional structural diagram of the present invention.

[0022] Figure 6 This is a cross-sectional structural diagram of the mounting ring of the present invention.

[0023] Figure 7 This is a three-dimensional structural diagram of the sludge scraping assembly of the present invention.

[0024] Figure 8 This is a three-dimensional structural diagram of the unblocking component of the present invention.

[0025] Figure 9 This is a three-dimensional structural diagram of the guide rod and return spring of the present invention.

[0026] Figure 10 This is a three-dimensional structural diagram of the sludge removal component of the present invention.

[0027] Explanation of reference numerals in the attached drawings: 1: Support base, 2: Water source heat pump, 301: Support frame, 302: Outer shell, 303: Connecting hole, 304: Screen barrel, 305: Transmission pipe, 401: Fixing rod, 402: Double-headed motor, 403: Screen plate one, 404: Screen plate two, 501: Mounting column, 502: Comb plate one, 503: Comb plate two, 601: Threaded rod, 602: Sludge scraper ring, 603: Slide groove, 604: Sludge discharge hole, 701: Telescopic rod, 702: Sliding block, 703: Top block, 704: Return spring, 705: Guide rod, 706: Return spring, 901: Telescopic pipe, 902: Connecting ring, 903: Sludge discharge pipe. Detailed Implementation

[0028] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0029] Example 1: A wastewater source heat pump with a wastewater treatment device, such as Figure 1 and Figure 2 As shown, it includes a support base 1, a water source heat pump 2, and a sewage filtration mechanism. The water source heat pump 2 is fixedly installed on the top surface of the support base 1. The filtered sewage will undergo heat exchange through the water source heat pump 2. The water source heat pump 2 is equipped with a sewage filtration mechanism for filtering sewage.

[0030] like Figure 1 and Figure 2 As shown, the wastewater filtration mechanism includes a support frame 301, a housing 302, a screen 304, and a transmission pipe 305. The support frame 301 is bolted to the center of the front of the water source heat pump 2. The housing 302 is bolted to the support frame 301. A connection hole 303 is opened at the center of the top surface of the housing 302. The screen 304 is bolted to the inside of the housing 302. The screen 304 will perform a third filtration of the wastewater. The transmission pipe 305 is sealed to the center of the bottom surface of the housing 302. The other end of the transmission pipe 305 is sealed to the water source heat pump 2. The filtered wastewater will be transmitted to the water source heat pump 2 through the transmission pipe 305.

[0031] like Figure 1 , Figure 3 and Figure 4As shown, it also includes a hair filtration assembly, which includes a fixing rod 401, a dual-head motor 402, a first screen plate 403, and a second screen plate 404. The fixing rod 401 is bolted to the upper inner part of the outer casing 302, and the dual-head motor 402 is bolted to the middle of the fixing rod 401. The first screen plate 403 is rotatably mounted on the upper inner part of the outer casing 302. The first screen plate 403 will perform the first filtration of the wastewater. The center of the bottom surface of the first screen plate 403 is aligned with the upper part of the dual-head motor 402. The output shaft is connected by a coupling. A second screen plate 404 is rotatably installed on the upper inner part of the outer casing 302. The second screen plate 404 will perform a second filtration of the sewage. The second screen plate 404 is located directly below the first screen plate 403, and the center of the top surface of the second screen plate 404 is connected to the output shaft on the lower side of the double-head motor 402 by a coupling. The double-head motor 402 will drive the first screen plate 403 and the second screen plate 404 to rotate through the output shafts on both sides. The gap of the holes in the first screen plate 403 is larger than the gap of the holes in the second screen plate 404.

[0032] like Figure 1 , Figure 3 and Figure 4 As shown, it also includes mounting posts 501, comb plates 502 and 503. The mounting posts 501 are bolted to the upper inner part of the outer casing 302. Four comb plates 502 are bolted to the mounting posts 501 circumferentially. The comb plates 502 are all located above the sieve plate 403 and are slidably connected to the sieve plate 403. The comb plates 502 scrape hair and other impurities on the sieve plate 403 to prevent the sieve plate 403 from being blocked. The bottom surface of the fixing rod 401 is symmetrically bolted to the comb plates 503. The comb plates 503 are all located above the sieve plate 404 and are slidably connected to the sieve plate 404. The comb plates 503 scrape hair and other impurities on the sieve plate 404 to prevent the sieve plate 404 from being blocked.

[0033] When the wastewater needs to be used as a heat source / coolant in the water source heat pump unit 2, the dual-head motor 402 is started. The dual-head motor 402 drives the first screen plate 403 and the second screen plate 404 to rotate clockwise through the output shafts on the upper and lower sides. Then, the wastewater is injected into the outer casing 302 through the connection hole 303. The wastewater first passes through the first screen plate 403, which performs the first filtration of the wastewater. Large pieces of hair and other impurities in the wastewater are left on the first screen plate 403. At the same time, as the first screen plate 403 rotates, the comb plate 502 on the mounting column 501 will remove the hair and other impurities on the first screen plate 403. The screen plate 403 is scraped to prevent hair and other impurities from clogging the holes during filtration. The wastewater then falls onto the screen plate 404, which has smaller holes than the screen plate 403, thus filtering the finer hair and other impurities a second time. As the screen plate 404 rotates, the comb plate 503 on the fixed rod 401 scrapes the hair and other impurities on the screen plate 404 to prevent them from clogging the holes during filtration, thus completing the two-stage filtration of the wastewater.

[0034] Example 2: Based on Example 1, such as Figure 1 , Figure 5 and Figure 6 As shown, it also includes a sludge scraping assembly, which includes a threaded rod 601 and a sludge scraping ring 602. The threaded rod 601 is rotatably installed at the inner center of the screen barrel 304. The threaded rod 601 has a bidirectional thread. The upper end of the threaded rod 601 is connected to the output shaft on the lower side of the double-headed motor 402 through a coupling. The sludge scraping ring 602 is slidably installed inside the screen barrel 304. The sludge scraping ring 602 is threadedly connected to the threaded rod 601. The sludge scraping ring 602 will reciprocate up and down along the bidirectional thread of the threaded rod 601 inside the screen barrel 304. The sludge scraping ring 602 has a circumferential groove 603. Sixteen sludge discharge holes 604 are opened in the groove 603 of the sludge scraping ring 602.

[0035] like Figure 1 , Figure 5 , Figure 7 , Figure 8 and Figure 9As shown, it also includes a dredging assembly, which includes a telescopic rod 701, a slider 702, a top block 703, a return spring 704, a guide rod 705, and a return spring 706. The top surface of the second sieve plate 404 is symmetrically connected to the guide rods 705 by bolts. Return springs 706 are fixed between the guide rods 705 and the second sieve plate 404. The lower ends of the two guide rods 705 are respectively connected to the telescopic rods 701 by bolts. The telescopic rods 701 are slidably connected to the second sieve plate 404. Next, the lower ends of the two telescopic rods 701 are respectively connected to sliders 702 by bolts. The two sliders 702 are slidably connected to the grooves 603 of the mud scraper ring 602. The two sliders 702 are respectively slidably connected to top blocks 703. The top blocks 703 and the corresponding sliders 702 are respectively fixed with return springs 704. When the slider 702 moves to the mud discharge hole 604, the top block 703 will push downward to clear the mud discharge hole 604 and prevent the mud discharge hole 604 from being blocked by mud and other impurities.

[0036] like Figure 1 , Figure 5 and Figure 10 As shown, it also includes a mud discharge assembly, which includes a telescopic tube 901, a connecting ring 902, and a mud discharge pipe 903. The mud discharge holes 604 of the mud scraper ring 602 are respectively sealed to the telescopic tubes 901. The lower part of the outer shell 302 is circumferentially installed with the connecting rings 902 by bolts. Each telescopic tube 901 passes through the outer shell 302 and is sealed to the connecting rings 902. Mud and other impurities will be transferred from the telescopic tubes 901 to the connecting rings 902 through the mud discharge holes 604. The right side of the connecting ring 902 is sealed to the mud discharge pipe 903. The mud and other impurities will eventually be discharged to the outside from the mud discharge pipe 903.

[0037] The wastewater, after two filtrations, falls into the screen barrel 304 for a third filtration. During this process, the output shaft on the lower side of the dual-head motor 402 drives the threaded rod 601 to rotate, thereby causing the scraper ring 602 to reciprocate up and down along the bidirectional thread of the threaded rod 601 within the screen barrel 304. As the scraper ring 602 moves up and down, it scrapes away the silt and other impurities remaining on the inner wall of the screen barrel 304. The scraped-off silt and other impurities fall into the chute 603 for collection, thus preventing silt from clogging the screen barrel 304. As the second screen plate 404 rotates, it drives the slider 702 to move along the chute 603 of the scraper ring 602 via the telescopic rod 701. The extension and retraction of the telescopic rod 701, along with the elasticity of the guide rod 705 and the return spring 706, work together to move the scraper ring 602 up and down, ensuring that the slider 702 remains in contact with the chute 603 of the scraper ring 602. The sliding ring 602 and the sliding block 702 move together to scrape the mud and sand and other impurities in the chute 603 towards the mud discharge hole 604. Then, the mud and sand are transferred to the connecting ring 902 through the telescopic tube 901 corresponding to the mud discharge hole 604. During this process, the telescopic tube 901 will also extend and retract to cooperate with the up and down movement of the mud scraping ring 602. Finally, the mud and sand and other impurities are discharged to the outside from the mud discharge tube 903, thus completing the filtration and separation of mud and sand. At the same time, as the sliding block 702 moves along the chute 603, when the top block 703 in the sliding block 702 moves to the mud discharge hole 604, the return spring 704 will return to its original position and push the corresponding top block 703 downward, thereby pushing the corresponding mud discharge hole 604 to prevent the mud and sand and other impurities from clogging the mud discharge hole 604. When the sliding block 702 slides past the mud discharge hole 604, the chute 603 will push the top block 703 into the corresponding sliding block 702, and the return spring 704 will be compressed again. This cycle is used to unclog the mud discharge hole 604 on the mud scraping ring 602.

[0038] After the third filtration in the screen 304 is completed, the wastewater will be transferred through the transmission pipe 305 to the water source heat pump 2 for heat exchange, thus completing one treatment of the wastewater.

[0039] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A wastewater source heat pump with a wastewater treatment device, comprising a support base (1) and a water source heat pump unit (2), wherein the water source heat pump unit (2) for heat exchange is fixedly installed on the support base (1), characterized in that, It also includes a sewage filtration mechanism. The water source heat pump (2) is equipped with a sewage filtration mechanism for filtering sewage. The wastewater filtration mechanism includes a support frame (301), a housing (302), a screen (304), and a transmission pipe (305). The support frame (301) is fixedly installed on the water source heat pump (2). The housing (302) is fixedly installed on the support frame (301). The housing (302) has a connection hole (303). The screen (304) for filtering wastewater is fixedly installed inside the housing (302). The transmission pipe (305) for transmitting the filtered wastewater is fixedly connected to the housing (302). The other end of the transmission pipe (305) is fixedly connected to the water source heat pump (2). It also includes a hair filtering assembly, which includes a fixed rod (401), a dual-head motor (402), a first sieve plate (403) and a second sieve plate (404). The fixed rod (401) is fixedly installed inside the housing (302), and the dual-head motor (402) is fixedly installed on the fixed rod (401). The first sieve plate (403) for filtering impurities for the first time is rotatably installed inside the housing (302). The first sieve plate (403) is fixedly connected to the output shaft on the upper side of the dual-head motor (402). The second sieve plate (404) for filtering impurities for the second time is rotatably installed inside the housing (302). The second sieve plate (404) is located directly below the first sieve plate (403), and the second sieve plate (404) is fixedly connected to the output shaft on the lower side of the dual-head motor (402). The gap of the holes in the first sieve plate (403) is larger than the gap of the holes in the second sieve plate (404). It also includes a mud scraping assembly, which includes a threaded rod (601) and a mud scraping ring (602). The threaded rod (601) is rotatably installed inside the screen barrel (304). The threaded rod (601) is fixedly connected to the output shaft on the lower side of the double-head motor (402). The mud scraping ring (602) for scraping mud and sand is slidably installed inside the screen barrel (304). The mud scraping ring (602) is threadedly connected to the threaded rod (601). The mud scraping ring (602) has a groove (603) and several mud discharge holes (604) are opened in the groove (603) of the mud scraping ring (602). It also includes a dredging assembly, which includes a telescopic rod (701), a slider (702), a top block (703), a return spring (704), a guide rod (705), and a return spring (706). A guide rod (705) for guiding is fixedly connected to the second sieve plate (404). A return spring (706) is fixedly installed between the guide rod (705) and the second sieve plate (404). A telescopic rod (701) is fixedly connected to the lower end of the guide rod (705). The slide is connected to the screen plate (404). The two telescopic rods (701) are respectively fixedly connected to the sliders (702). The two sliders (702) are slidably connected to the grooves (603) of the scraper ring (602). The two sliders (702) are respectively slidably connected to the top blocks (703). The top blocks (703) and the corresponding sliders (702) are respectively fixedly provided with reset springs (704). When the sliders (702) move to the mud discharge hole (604), the top blocks (703) will push downward.

2. A wastewater source heat pump with a wastewater treatment device according to claim 1, characterized in that, It also includes a mounting post (501), a comb plate one (502) and a comb plate two (503). The mounting post (501) is fixedly installed inside the housing (302). The comb plate one (502) for scraping hair is fixedly connected to the mounting post (501). The comb plate one (502) is located above the sieve plate one (403), and the comb plate one (502) is slidably connected to the sieve plate one (403). The comb plate two (503) for scraping hair is fixedly connected to the fixing rod (401). The comb plate two (503) is located above the sieve plate two (404), and the comb plate two (503) is slidably connected to the sieve plate two (404).

3. A wastewater source heat pump with a wastewater treatment device according to claim 1, characterized in that, The threaded rod (601) has a bidirectional thread.

4. A wastewater source heat pump with a wastewater treatment device according to claim 1, characterized in that, It also includes a mud discharge assembly, which includes a telescopic tube (901), a connecting ring (902) and a mud discharge pipe (903). The telescopic tube (901) is fixedly connected to the mud discharge hole (604) of the mud scraper ring (602). The connecting ring (902) is fixedly installed on the outer shell (302). Each telescopic tube (901) passes through the outer shell (302) and is fixedly connected to the connecting ring (902). The connecting ring (902) is fixedly connected to a mud discharge pipe (903) for discharging mud and sand.

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