Automatic filtering equipment for sewage source heat pump

Abstract

The utility model is applicable to the technical field of filtering devices, and provides automatic filtering equipment for a sewage source heat pump, which comprises a shell, a water outlet pipe transversely communicated with the outer surface of the shell, an upper cover arranged at the top of the shell, and a filter cartridge with an open top arranged in an inner cavity of the shell, a water inlet pipe penetrating through the cover plate and extending to the inner cavity of the filter cartridge is arranged on the upper cover in a penetrating manner, a threaded lead screw penetrating through the cover plate and extending to the bottom of the inner cavity of the filter cartridge is rotatably and vertically arranged at the bottom of the upper cover, a threaded sleeve is in threaded connection with the surface of the threaded lead screw, a rotating sleeve is rotatably arranged on the surface of the threaded sleeve in a sleeving manner, and a cleaning assembly is arranged on the surface of the rotating sleeve. According to the automatic filtering equipment for the sewage source heat pump, the cleaning assembly is arranged in the inner cavity of the filtering cylinder, the filtering mechanism can be cleaned without taking out the filtering cylinder, a threaded rod and a screw rod are matched to drive the cleaning assembly to scrape and brush the ground from top to bottom, dirt remaining in the filtering cylinder can be cleaned more precisely, the repeated utilization rate of the filtering cylinder is increased, and the cleaning efficiency is improved. The cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of filtering devices, and in particular relates to automatic filtering equipment for a sewage source heat pump. Background Art

[0002] A sewage-source heat pump is a form of wastewater resource utilization. It uses sewage or treated sewage as a low-grade heat source, converting it into higher-quality hot water through heat pump technology for heating, bathing, or other heating applications. Sewage can also be used as a heat rejection source for refrigeration or air conditioning. Untreated sewage, whether primary, secondary, or treated, inevitably contains solid impurities. Effective removal of these impurities is crucial to preventing blockage and entanglement in the sewage heat exchanger.

[0003] Chinese patent CN220676944U provides an internal filtration device for a sewage-source heat pump. This utility model patent incorporates a filtration mechanism and a sewage discharge assembly in conjunction with a drive mechanism to filter sewage while simultaneously discharging impurities from the filter box. However, this utility model patent lacks specific requirements for cleaning and maintenance of the filtration mechanism. Prolonged filtration can cause difficult-to-remove dirt to adhere to the filter screen of the filter cartridge, reducing subsequent filtration effectiveness. Frequent filter cartridge replacement also increases costs. Utility Model Content

[0004] The utility model provides an automatic filtering device for a sewage source heat pump, aiming to solve the problem that an existing sewage source heat pump internal filtering device lacks cleaning and maintenance of the filtering mechanism, and long-term filtering operations will cause some difficult-to-handle dirt to adhere to the filter net of the filter cartridge, reducing the subsequent filtering effect, and frequent replacement of the filter cartridge will increase cost consumption.

[0005] The filter bag is connected with the filter bag through the bottom end of the cover, and the filter bag is connected with the filter bag to form a circular aperture, so that the filter bag can pass through the filter bag and the filter bag can be easily installed.

[0006] Preferably, the cleaning assembly includes a scraper, a brush plate and two spring rods, one end of the two spring rods is respectively fixedly connected to the outer surface of the rotating sleeve and is located in the same horizontal plane, the scraper is fixedly connected to the other end of one of the spring rods, and the brush plate is fixedly connected to the other end of the other spring rod.

[0007] Preferably, the bottom of the cover plate is provided with a cleaning water pipe arranged along a ring shape, and cleaning nozzles are evenly arranged at the bottom of the cleaning water pipe.

[0008] Preferably, a hanging ring is provided on the top of the upper cover, and a connecting rod is rotatably connected to the upper part of the outer surface of the shell. A threaded barrel arranged along the length direction of the connecting rod is embedded in the interior of one end of the connecting rod, and a bolt is threadedly connected to the inner cavity of the threaded barrel. A longitudinal slot is provided on the side wall of the upper cover. When the upper cover is pressed on the top of the shell, the connecting rod rotates to the inside of the slot and the bolt is pressed tightly against the top of the upper cover.

[0009] Preferably, the outer edge of the bottom of the cover plate is fixedly connected to a fixing ring, the inner wall surface of the fixing ring is provided with an internal thread, the outer edge of the top of the filter cartridge is fixedly connected to a metal ring, and the outer surface of the metal ring is provided with an external thread that is compatible with the internal thread of the fixing ring.

[0010] Preferably, a mounting ring is fixedly connected to the lower part of the inner cavity of the shell, and an annular groove adapted to the bottom end of the filter cartridge is provided on the mounting ring. A plurality of fixing blocks are provided at the bottom of the inner ring surface of the filter cartridge, and a plurality of fixing grooves adapted to the fixing blocks are provided on the mounting ring. A sewage pipe is fixedly connected to the bottom of the shell, and a valve is provided on the sewage pipe.

[0011] Beneficial effects

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: an automatic filtering device for a sewage source heat pump of the present invention is provided with a cleaning component in the inner cavity of the filter cartridge, so that the filtering mechanism can be cleaned without removing the filter cartridge. The cooperation of the threaded rod and the spiral rod drives the cleaning component to scrape and then brush the residual dirt inside the filter cartridge from top to bottom for more precise cleaning, thereby improving the reuse rate of the filter cartridge. When the filtering effect deteriorates, the filter cartridge is removed from the inner cavity of the filter housing for replacement, thereby avoiding frequent replacement of the filter cartridge and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is an internal cross-sectional view of the utility model;

[0015] Figure 3 This is a top sectional view of the utility model;

[0016] Figure 4 This is a cross-sectional view of the base of the utility model;

[0017] Figure 5 For this utility model Figure 2 A partial enlarged view of the area at point A.

[0018] In the figure: 1-shell, 2-water inlet pipe, 3-water outlet pipe, 4-upper cover, 5-lifting ring, 6-knob, 7-drain pipe, 8-valve, 9-filter cartridge, 10-metal ring, 11-cover plate, 12-screw rod, 13-threaded screw, 14-threaded sleeve, 15-rotating sleeve, 16-mounting ring, 17-spring rod, 18-scraper, 19-brush plate, 20-motor, 21-fixing block, 22-fixing ring, 23-cleaning nozzle, 24-cleaning water pipe, 25-connecting rod, 26-bolt, 27-threaded barrel. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] See also Figure 1-5 The utility model provides a technical solution: an automatic filtering equipment for sewage source heat pump, comprising a shell 1, an outer surface of the shell 1 is horizontally connected with a water outlet pipe 3, the top of the shell 1 is provided with an upper cover 4, and the bottom of the upper cover 4 is fixedly connected with a cover plate 11, the inner cavity of the shell 1 is provided with a filter cartridge 9 with an open top, the cover plate 11 is provided on the top of the filter cartridge 9, the upper cover 4 is provided with a water inlet pipe 2 that passes through the cover plate 11 and extends to the inner cavity of the filter cartridge 9, the bottom of the upper cover 4 is rotatably provided with a threaded screw rod 13 that passes through the cover plate 11 and extends to the bottom of the inner cavity of the filter cartridge 9, the surface of the threaded screw rod 13 is threadedly connected with a threaded sleeve 14, the surface of the threaded sleeve 14 is rotatably sleeved with a rotating sleeve 15, and the surface of the rotating sleeve 15 is provided with a cleaning component, the bottom of the cover plate 11 is fixedly connected with a screw rod 12 coaxially with the threaded screw rod 13, the rotating sleeve 15 is movably sleeved on the surface of the screw rod 12, and the rotating sleeve 15 is guided by the screw rod 12 to rotate when the threaded sleeve 14 is raised and lowered.

[0021] In this embodiment, when the filtering operation starts, the sewage enters the filter cartridge 9 in the inner cavity of the shell 1 from the water inlet pipe 2, and flows out from the water outlet pipe 3 after being filtered by the filter cartridge 9. During the cleaning operation, in order to facilitate the rotation of the sleeve 15 so that it can move more stably, two spiral rods 12 can be set in a mirror image. The two spiral rods 12 are coaxial with the threaded screw 13 and are located outside the threaded screw 13. The lifting of the threaded sleeve 14 drives the rotating sleeve 15 to move at the same time and drives the cleaning component on the rotating sleeve 15 to move at the same time. When the rotating sleeve 15 moves, it will move along The spiral trajectory formed by the two spiral rods 12 rotates while driving the cleaning assembly on the rotating sleeve 15 to rotate, cleaning the inner wall surface of the filter cartridge 9 from top to bottom. The bottom of the shell 1 is bucket-shaped, which is convenient for the cleaning assembly to discharge the cleaned dirt from the bottom center of the shell 1 to the outside of the shell 1. The upper cover 4 is covered on the top of the shell 1 to achieve a certain sealing effect. The cover plate 11 fixedly connected to the bottom of the upper cover 4 plays a certain supporting role, supporting one end of the spiral rod 12. The top of the upper cover 4 is provided with a motor 20 for driving the threaded screw 13 to rotate.

[0022] Furthermore, the cleaning assembly includes a scraper 18, a brush plate 19 and two spring rods 17, one end of the two spring rods 17 is fixedly connected to the outer surface of the rotating sleeve 15 and is located in the same horizontal plane, the scraper 18 is fixedly connected to the other end of one of the spring rods 17, and the brush plate 19 is fixedly connected to the other end of the other spring rod 17.

[0023] In this embodiment, the rotation direction of the rotating sleeve 15 should follow the principle of scraping first and then brushing. The scraper 18 first contacts the dirt on the inner wall of the filter cartridge 9 and scrapes it off, and then the brush plate 19 brushes off the dirt residue or finer dirt. The spring rod 17 facilitates better contact between the scraper 18 and the brush plate 19 and the inner wall of the filter cartridge 9.

[0024] Furthermore, a cleaning water pipe 24 is provided in a ring shape at the bottom of the cover plate 11 , and cleaning nozzles 23 are evenly provided at the bottom of the cleaning water pipe 24 .

[0025] In this embodiment, the cleaning water pipe 24 passes through the cover plate 11 and is connected to the water source outside the shell 1 as cleaning water. The nozzles 23 are all tilted and aligned with the inner wall surface of the filter cartridge 9 to facilitate cleaning of the filter cartridge 9.

[0026] Furthermore, a hanging ring 5 is provided on the top of the upper cover 4, and a connecting rod 25 is rotatably connected to the upper part of the outer surface of the shell 1. A threaded barrel 27 arranged along the length direction of the connecting rod 25 is embedded in the interior of one end of the connecting rod 25, and the inner cavity of the threaded barrel 27 is threadedly connected to a bolt 26. There is a longitudinal slot on the side wall of the upper cover 4. When the upper cover 4 is pressed on the top of the shell 1, the connecting rod 25 rotates to the inside of the slot and the bolt 26 is pressed tightly against the top of the upper cover 4.

[0027] In this embodiment, the top of the threaded barrel 27 and the top of the upper cover 4 should be in the same horizontal plane. Turning the knob 6 drives the bolt 26 to rotate and extend from the inner cavity of the threaded barrel 27 and separate from the top of the upper cover 4. Then the connecting rod 25 is rotated and removed from the inner cavity of the slot. At this time, the upper cover 4 can be pulled up. By pulling up the lifting ring 5 on the top of the upper cover 4, the cover plate 11 and the device installed on the cover plate 11 and the filter cartridge 9 can be taken out from the inner cavity of the housing 1, which is convenient for replacing the filter cartridge 9 or maintaining other devices. When reinstalling after replacement and maintenance, the upper cover 4 is pressed against the top of the housing 1 again, and the cover plate 11 and the device installed on the cover plate 11 and the filter cartridge 9 are returned to the inner cavity of the housing 1. The connecting rod 25 is rotated to the inside of the slot, and the knob 6 is turned to drive the bolt 26 to rotate into the inner cavity of the threaded barrel 27 and press it against the top of the upper cover 4 to reseal it.

[0028] Furthermore, the outer edge of the bottom of the cover plate 11 is fixedly connected to a fixing ring 22, the inner wall of the fixing ring 22 is provided with an internal thread, and the outer edge of the top of the filter cartridge 9 is fixedly connected to a metal ring 10, the outer surface of the metal ring 10 is provided with an external thread that is compatible with the internal thread of the fixing ring 22.

[0029] In this embodiment, after the metal ring 10 and the filter cartridge 9 are installed, the metal ring 10 is placed in the inner cavity of the fixing ring 22 and tightened, and the filter cartridge 9 is fixed to the cover plate 11. When the filter cartridge 9 needs to be removed, the metal ring 10 is loosened and removed from the inner cavity of the fixing ring 22.

[0030] Furthermore, a mounting ring 16 is fixedly connected to the lower part of the inner cavity of the shell 1, and an annular groove is provided on the mounting ring 16 to match the bottom end of the filter cartridge 9. A plurality of fixing blocks 21 are provided at the bottom of the inner ring surface of the filter cartridge 9, and a plurality of fixing grooves are provided on the mounting ring 16 to match the fixing blocks 21. A sewage pipe 7 is fixedly connected to the bottom of the shell 1, and a valve 8 is provided on the sewage pipe 7.

[0031] In this embodiment, the mounting ring 16 has a supporting effect. The top of the inner ring surface of the mounting ring 16 supports the bottom of the mounting seat of the threaded screw 13. At the same time, the annular groove opened on the mounting ring 16 supports the bottom of the filter cartridge 9. The fixing block 21 at the bottom of the inner ring surface of the filter cartridge 9 corresponds one-to-one with the fixing groove opened on the mounting ring, which is convenient for fixing the filter cartridge 9 and preventing it from rotating and offsetting in the inner cavity of the shell 1. The annular groove is connected to the fixing groove, and the fixing groove is connected to the inner cavity of the mounting ring 16. A very small amount of dirt residue will flow from the annular groove through the fixing groove and finally fall into the lower drain pipe 7 at the inner cavity of the shell 1. After the cleaning operation is completed, open the valve 8 to discharge the dirt residue from the drain pipe 7 to the outside of the shell 1 for unified treatment.

[0032] The working principle and usage process of the present invention are as follows: After the present invention is installed and filtration begins, sewage enters the inner cavity of the housing 1 through the water inlet pipe 2 and enters the filter cartridge 9. After being filtered by the filter cartridge 9, it flows out of the water outlet pipe 3. During the cleaning operation, the threaded sleeve 14 is raised and lowered, driving the rotating sleeve 15 and the cleaning assembly on the rotating sleeve 15 to move simultaneously. As the rotating sleeve 15 moves, it rotates along the spiral path formed by the two screw rods 12, driving the cleaning assembly on the rotating sleeve 15 to rotate, cleaning the inner wall of the filter cartridge 9 from top to bottom. After the cleaning operation is completed, the valve 8 is opened to discharge dirt and residue through the sewage pipe 7 outside the housing 1 for unified disposal. If the filter cartridge 9 needs to be replaced or other maintenance is required, the lifting ring 5 on the top of the upper cover 4 can be pulled out to remove the cover plate 11, the device mounted on the cover plate 11, and the filter cartridge 9 from the inner cavity of the housing 1. The metal ring 10 can then be loosened and removed from the inner cavity of the fixing ring 22 to replace the filter cartridge 9.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Automatic filtering equipment for sewage source heat pump, characterized by: The invention comprises a shell (1), wherein the outer surface of the shell (1) is connected with a water outlet pipe (3) in a transverse direction, the top of the shell (1) is provided with an upper cover (4), the bottom of the upper cover (4) is fixedly connected with a cover plate (11), the inner cavity of the shell (1) is provided with a filter cartridge (9) with an open top, the cover plate (11) is provided on the top of the filter cartridge (9), the upper cover (4) is provided with a water inlet pipe (2) passing through the cover plate (11) and extending to the inner cavity of the filter cartridge (9), and the bottom of the upper cover (4) is rotatably provided with a filter cartridge (9) passing through the cover plate (11) and extending to the filter cartridge (9). A threaded screw (13) is provided at the bottom of the inner cavity of the cylinder (9), the surface of the threaded screw (13) is threadedly connected to a threaded sleeve (14), a rotating sleeve (15) is rotatably sleeved on the surface of the threaded sleeve (14), and a cleaning component is provided on the surface of the rotating sleeve (15), the bottom of the cover plate (11) is fixedly connected to a screw rod (12) coaxially with the threaded screw (13), the rotating sleeve (15) is movably sleeved on the surface of the screw rod (12), and the rotating sleeve (15) is guided by the screw rod (12) to rotate when the threaded sleeve (14) is raised or lowered.

2. The automatic filtering device for a sewage source heat pump according to claim 1, characterized in that: The cleaning assembly comprises a scraper (18), a brush plate (19) and two spring rods (17), one end of each of the two spring rods (17) is fixedly connected to the outer surface of the rotating sleeve (15) and is located on the same horizontal plane, the scraper (18) is fixedly connected to the other end of one of the spring rods (17), and the brush plate (19) is fixedly connected to the other end of the other spring rod (17).

3. The automatic filtering device for a sewage source heat pump according to claim 1, characterized in that: The bottom of the cover plate (11) is provided with a cleaning water pipe (24) arranged in a ring shape, and cleaning nozzles (23) are evenly arranged at the bottom of the cleaning water pipe (24).

4. The automatic filtering device for a sewage source heat pump according to claim 1, characterized in that: A hanging ring (5) is provided on the top of the upper cover (4), and a connecting rod (25) is rotatably connected to the upper portion of the outer surface of the shell (1). A threaded barrel (27) arranged along the length direction of the connecting rod (25) is embedded in the interior of one end of the connecting rod (25), and a bolt (26) is threadedly connected to the inner cavity of the threaded barrel (27). A longitudinal slot is provided on the side wall of the upper cover (4). When the upper cover (4) is pressed on the top of the shell (1), the connecting rod (25) rotates to the inside of the slot and the bolt (26) is pressed against the top of the upper cover (4).

5. The automatic filtering device for a sewage source heat pump according to claim 1, characterized in that: The outer edge of the bottom of the cover plate (11) is fixedly connected to a fixing ring (22), and the inner wall surface of the fixing ring (22) is provided with an internal thread. The outer edge of the top of the filter cartridge (9) is fixedly connected to a metal ring (10), and the outer surface of the metal ring (10) is provided with an external thread that matches the internal thread of the fixing ring (22).

6. The automatic filtering device for a sewage source heat pump according to claim 1, characterized in that: A mounting ring (16) is fixedly connected to the lower portion of the inner cavity of the housing (1), and an annular groove is provided on the mounting ring (16) to match the bottom end of the filter cartridge (9). A plurality of fixing blocks (21) are provided at the bottom of the inner annular surface of the filter cartridge (9), and a plurality of fixing grooves are provided on the mounting ring (16) to match the fixing blocks (21). A sewage pipe (7) is fixedly connected to the bottom of the housing (1), and a valve (8) is provided on the sewage pipe (7).

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