Filtering device for variable-frequency heat pump water heater

Abstract

The utility model provides a filtering device for a variable-frequency heat pump water heater, and belongs to the technical field of variable-frequency heat pumps. The filtering device for the variable-frequency heat pump water heater comprises a pipeline assembly, a cleaning assembly and a deslagging assembly. One end of the water inlet pipe is communicated with the water inlet of the filter pipe, one end of the water outlet pipe is communicated with the water outlet of the filter pipe, and a filter cartridge is arranged in the filter pipe; a gear motor for driving the filter cartridge to rotate is arranged outside the filter pipe, and a reciprocating part for driving the annular brush to move up and down is synchronously arranged outside the filter pipe; a communicating pipe is fixed on the filter pipe, and the lower end of the filter cartridge is rotatably inserted into the communicating pipe. The cleaning assembly is automatically started, the roller body brush and the annular brush are matched to clean the filter screen, the filtering efficiency is ensured, water stopping and shutdown are not needed in the process, normal operation of equipment is not affected, manual disassembly and cleaning are not needed, operation is convenient and fast, the labor cost is reduced, and the filtering efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of variable frequency heat pump, in particular, relates to a filter device for variable frequency heat pump water heater. BACKGROUND

[0002] At present, the variable frequency heat pump water heater has gradually become an important equipment for water supply due to its high efficiency and energy saving characteristics. However, in the process of operation, the impurities (such as sand, rust and other suspended solids) in the water will have a negative impact on the efficiency and service life of the heat pump, and the filter device is set to improve the operation stability and prolong the service life of the heat pump;

[0003] The prior art in the above has the following defects: when primary filtering, the filter set to filter larger particles needs to be manually disassembled and cleaned regularly to remove sand and stones clogging the filter screen, and then reinstalled for use. Since the variable frequency heat pump water heater has a large water consumption, it needs to be disassembled and cleaned frequently, which is tedious, time-consuming and labor-intensive. If not handled in time, it may also cause blockage and water stoppage, affecting the normal operation of the equipment. Practical new type content

[0004] In order to make up for the above shortcomings, the present application provides a filter device for variable frequency heat pump water heater, which aims to improve the problem of complicated disassembly and cleaning of the filter structure, affecting the operation of the equipment.

[0005] The present application provides a filter device for variable frequency heat pump water heater, which comprises a pipeline assembly, a cleaning assembly and a deslagging assembly.

[0006] The pipeline assembly comprises a water inlet pipe, a water outlet pipe and a filter pipe, one end of the water inlet pipe is in communication with the water inlet of the filter pipe, one end of the water outlet pipe is in communication with the water outlet of the filter pipe, and the filter pipe is internally provided with a filter cartridge.

[0007] The cleaning assembly comprises a roller brush and an annular brush, the surface of the roller brush is in rolling contact with the outer wall of the filter pipe, the protruding brush column on the surface of the roller brush is correspondingly arranged with the filter hole on the surface of the filter pipe, one end of the annular brush is arranged in the filter cartridge, the filter pipe is externally provided with a speed reducer for driving the filter cartridge to rotate, and a reciprocating member is synchronously arranged for driving the annular brush to move up and down.

[0008] The deslagging assembly comprises a sealing plate, a rotating shaft and a stepping motor, the filter pipe is fixed with a communicating pipe, the lower end of the filter cartridge is rotatably inserted into the communicating pipe, the lower end of the communicating pipe is butted with a barrel, the rotating shaft is rotatably installed in the barrel, the sealing plate is fixedly connected with the rotating shaft, the search sealing plate is provided with four, the four sealing plates are provided at equal angles around the rotating shaft, the end of the sealing plate is in sealing contact with the inside of the barrel, the bottom of the barrel is provided with a deslagging port, and the driving shaft of the stepping motor is in conductive connection with the rotating shaft.

[0009] In a preferred mode of the present application, a waterproof bearing is installed between the outer wall of the filter cartridge and the inner wall of the filter pipe to reduce the rotating resistance of the filter cartridge in the filter pipe, and sealing pads are respectively arranged at the upper and lower ends of the filter cartridge, the sealing pads being arranged between the inner wall of the filter pipe and the outer wall of the filter cartridge, and the water outlet pipe is arranged at a position between the two sealing pads.

[0010] In a preferred mode of the present application, the annular brush comprises a cylinder and a brush body, the cylinder communicates the inside of the filter cartridge with the water inlet pipe, the brush body is spirally arranged on the circumferential surface of the cylinder, and the brush body is arranged in the filter cartridge and in contact with the inner wall of the filter cartridge.

[0011] In a preferred mode of the present application, the outer wall of the filter pipe is provided with a protruding communicating cover, the communicating cover communicates with the inside of the filter pipe, the roller body brush is rotatably installed in the communicating cover, the brush body is arranged at the lower end of the cylinder, a corrugated pipe is butted at the upper end of the cylinder, and the other end of the corrugated pipe is butted with the water inlet pipe.

[0012] In a preferred mode of the present application, a support frame for supporting and fixing the pipeline assembly is further arranged, a sealing ring is arranged at the upper end of the filter pipe, and the sealing ring is in sealing contact with the outer wall of the cylinder.

[0013] In a preferred mode of the present application, the reciprocating member comprises a cam, a lever and a sliding sleeve, the cam is coaxially fixedly connected with the driving shaft of the speed reducer motor, one end of the lever is in contact with the surface of the cam, the other end of the lever is inserted into the sliding sleeve, and one end of the sliding sleeve is hingedly connected with the cylinder.

[0014] In a preferred mode of the present application, one end of the lever is provided with a roller shaft, the speed reducer motor is fixed outside the filter pipe, a hinged seat is arranged at a position between the two ends of the lever, a torsional spring is arranged at the hinged seat, the torsional spring pushes the lever to rotate around the hinged seat, so that the roller shaft is always in contact with the cam.

[0015] In a preferred mode of the utility model, the speed reducer motor is a double shaft motor, one end of the speed reducer motor is coaxially installed with the cam, the other end of the speed reducer motor is coaxially fixed with a driving wheel, one end of the filter cartridge is coaxially fixed with a driven wheel, the driving wheel is engaged with the driven wheel.

[0016] In a preferred mode of the utility model, the driving shaft of the stepping motor is coaxially fixed with a worm, one end of the rotating shaft is coaxially fixed with a turbine, the turbine is arranged outside the barrel, and the turbine is engaged with the worm.

[0017] In a preferred mode of the utility model, the filter pipe is internally provided with a first pressure sensor, and the water outlet pipe is internally provided with a second pressure sensor, which is used for detecting the internal water pressure, when the filter pipe is blocked to a certain extent, the water filtering performance is reduced, the water passing rate is reduced, the internal water pressure is increased, and the difference between the internal water pressure of the filter pipe and the internal water pressure of the water outlet pipe can be detected, so that the blocking degree can be directly understood, and the cleaning assembly can be controlled to operate and perform cleaning work.

[0018] Beneficial effects: the application provides a filter device for a variable frequency heat pump water heater, the filter device is internally provided with a cleaning assembly, the filter device can be automatically cleaned when the filter is dirty, and the filtering effect is maintained; clean water filtered through the filter device enters the heat pump water heater through a water outlet pipe; water flows into the filter pipe through a water inlet pipe, and particulate matters in the water are effectively intercepted when passing through the filter screen of the filter cartridge; when the filter screen is blocked to a certain extent during the filtering process, the cleaning assembly is automatically started, and the filter screen is cleaned by the cooperation of the roller brush and the annular brush, so that the filtering efficiency is ensured.

[0019] The roller brush extrudes the filter screen holes on the surface from the outside of the filter cartridge to remove the substances stuck in the holes, the annular brush sweeps the inner wall of the rotating filter cartridge to remove the attached impurities, the annular brush is driven by the reciprocating member to move up and down, so that the annular brush can comprehensively sweep the inner wall of the filter cartridge.

[0020] The impurities after being swept fall into the barrel which is butted at the bottom of the filter cartridge, the barrel is sealed and separated by four sealing plates, a containing groove is formed between any two adjacent sealing plates, the impurities fall into the containing groove, the containing groove is butted with the residue discharging opening by rotating the rotating shaft driven by the stepping motor, and residue discharging work can be performed, the process does not need to stop water and machine, does not affect the normal operation of the equipment, does not need manual disassembly and cleaning, is convenient and fast to operate, reduces the labor cost, and improves the filtering efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 is a schematic diagram of the three-dimensional structure of the filter device for the variable frequency heat pump water heater provided by the embodiments of the present application.

[0023] Figure 2 is a schematic diagram of the three-dimensional structure of the reciprocating member provided by the embodiments of the present application.

[0024] Figure 3 is a schematic diagram of the cross-sectional structure of the filter pipe provided by the embodiments of the present application.

[0025] Figure 4 is a schematic diagram of the cross-sectional structure of the residue discharging assembly provided by the embodiments of the present application.

[0026] Figure 5 is a schematic diagram of the three-dimensional structure of the annular brush provided by the embodiments of the present application.

[0027] Figure 6 is a schematic diagram of the three-dimensional structure of the residue discharging assembly provided by the embodiments of the present application.

[0028] In the drawings: 100, pipeline assembly; 110, water inlet pipe; 130, water outlet pipe; 150, filter pipe; 151, communication cover; 170, filter cartridge; 171, sealing ring; 173, driven wheel; 300, cleaning assembly; 310, roller brush; 330, annular brush; 331, cartridge body; 333, brush body; 335, corrugated pipe; 350, speed reduction motor; 351, driving wheel; 370, reciprocating member; 371, cam; 373, lever; 375, sliding sleeve; 500, residue discharging assembly; 510, sealing plate; 530, rotating shaft; 550, stepping motor; 570, barrel; 571, residue discharging port. DETAILED DESCRIPTION

[0029] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, or detachable connection, or integrated; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0030] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature, can include that first and second features are direct contact, also can include that first and second features are not direct contact but contact through other feature between them. Moreover, first feature "on", "above" and "on" second feature include that first feature is directly above and obliquely above second feature, or only indicate that first feature horizontal height is higher than second feature. First feature "under", "below" and "under" second feature include that first feature is directly below and obliquely below second feature, or only indicate that first feature horizontal height is less than second feature.

[0031] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0032] Please refer to Figures 1-6 The utility model provides a filter device for frequency conversion heat pump hot water machine, including pipeline subassembly 100, cleaning subassembly 300 and deslagging subassembly 500,

[0033] Pipeline subassembly 100 includes water inlet pipe 110, water outlet pipe 130 and filter pipe 150, one end of water inlet pipe 110 is connected with filter pipe 150 water inlet, one end of water outlet pipe 130 is connected with filter pipe 150 water outlet, and filter pipe 150 is built in filter cartridge 170, filter pipe 150 is built in first pressure sensor, and second pressure sensor is installed in water outlet pipe 130, which is used to detect internal water pressure, when filter pipe 150 is blocked to a certain degree, the water filtering performance drops, and the water passing rate reduces, so that the internal water pressure rises, by detecting the difference between the internal water pressure of filter pipe 150 and the internal water pressure of water outlet pipe 130, the blocking degree can be directly understood, and then cleaning subassembly 300 can be controlled to operate and clean.

[0034] Cleaning subassembly 300 includes roller body brush 310 and annular brush 330, the surface of roller body brush 310 is in rolling contact with the outer wall of filter pipe 150, the brush column protruding on the surface of roller body brush 310 is arranged correspondingly on the filter hole on the surface of filter pipe 150, one end of annular brush 330 is arranged in filter cartridge 170, and the outer portion of filter pipe 150 is provided with speed reducer motor 350 for driving filter cartridge 170 to rotate, and reciprocating part 370 for driving annular brush 330 to move up and down is synchronously arranged.

[0035] The slag discharge assembly 500 comprises sealing plates 510, a rotating shaft 530 and a stepping motor 550, the filter pipe 150 is fixed with a communicating pipe, the lower end of the filter cartridge 170 is rotatably inserted into the communicating pipe, the lower end of the communicating pipe is connected with a barrel 570, the rotating shaft 530 is rotatably installed in the barrel 570, the sealing plates 510 are fixedly connected with the rotating shaft 530, and four sealing plates 510 are arranged at equal angles around the rotating shaft 530, the end of the sealing plate 510 is in sealing contact with the inside of the barrel 570, a slag discharge port 571 is formed in the bottom of the barrel 570, and the driving shaft of the stepping motor 550 is in conductive connection with the rotating shaft 530.

[0036] In the embodiment of the utility model, waterproof bearing is installed between the outer wall of filter cartridge 170 and the inner wall of filter pipe 150, the rotating resistance of filter cartridge 170 in filter pipe 150 is reduced, and sealing pads are arranged at the upper end and the lower end of filter cartridge 170 respectively, the sealing pads are arranged between the inner wall of filter pipe 150 and the outer wall of filter cartridge 170, and the position where water outlet pipe 130 and filter pipe 150 are communicated is arranged between the two sealing pads.

[0037] Please refer to Figures 3-5 In the embodiment of the utility model, the annular brush 330 comprises a cylinder body 331 and a brush body 333, the cylinder body 331 is communicated with the inside of the filter cartridge 170 and the water inlet pipe 110, the brush body 333 is spirally arranged on the circumferential surface of the cylinder body 331, the brush body 333 is arranged in the filter cartridge 170, and the brush body 333 is in contact with the inner wall of the filter cartridge 170; a limiting block for limiting the rotation of the cylinder body 331 is fixed on the outer surface of the cylinder body 331.

[0038] In the embodiment of the utility model, the outer wall of the filter pipe 150 is provided with a protruding communicating cover 151, the communicating cover 151 is communicated with the inside of the filter pipe 150, the roller body brush 310 is rotatably installed in the communicating cover 151, the brush body 333 is arranged at the lower end of the cylinder body 331, a corrugated pipe 335 is connected with the water inlet pipe 110 at the other end of the corrugated pipe 335.

[0039] In the embodiment of the utility model, a supporting frame for supporting and fixing the pipeline assembly 100 is further arranged, a sealing ring 171 is arranged at the upper end of the filter pipe 150, and the sealing ring 171 is in sealing contact with the outer wall of the cylinder body 331.

[0040] Please refer to Figure 2In the specific embodiment of the utility model, the reciprocating member 370 includes a cam 371, a lever 373 and a sliding sleeve 375, the cam 371 is coaxially fixedly connected with the driving shaft of the speed reducer motor 350, one end of the lever 373 is in surface contact with the cam 371, the other end of the lever 373 is inserted in the sliding sleeve 375, and one end of the sliding sleeve 375 is hinged to the barrel 331.

[0041] In the specific embodiment of the utility model, one end of the lever 373 is provided with a roller shaft, the speed reducer motor 350 is fixed outside the filter pipe 150, a hinged seat is installed between the two ends of the lever 373, a torsional spring is installed at the hinged seat, the torsional spring pushes the lever 373 to rotate around the hinged seat, so that the roller shaft is always in contact with the cam 371.

[0042] In the specific embodiment of the utility model, the speed reducer motor 350 is a double-shaft motor, one end of the speed reducer motor 350 is coaxially provided with the cam 371, the other end of the speed reducer motor 350 is coaxially fixed with a driving wheel 351, one end of the filter cartridge 170 is coaxially fixed with a driven wheel 173, and the driving wheel 351 is engaged with the driven wheel 173.

[0043] In the specific embodiment of the utility model, the driving shaft of the stepping motor 550 is coaxially fixed with a worm, one end of the rotating shaft 530 is coaxially fixed with a turbine, the turbine is arranged outside the barrel 570, and the turbine is engaged with the worm.

[0044] The working principle of the filter device for the variable-frequency heat pump water heater is as follows: when in use, the water inlet pipe 110 is connected with the water source of the water heater, and the water to be treated is introduced through the port. The filter pipe 150 is made of high-strength engineering plastic, and the filter cartridge 170 arranged inside is used to intercept large-particle impurities. The built-in cleaning assembly 300 is used to automatically clean the filter when it is dirty, so that the filtering effect is maintained. The filtered clean water enters the heat pump water heater through the water outlet pipe 130. The water flows into the filter pipe 150 through the water inlet pipe 110, and the particles in the water are effectively intercepted when passing through the filter screen of the filter cartridge 170. During the filtering process, when the filter screen is blocked to a certain degree, the cleaning assembly 300 is automatically started, and the roller brush 310 and the annular brush 330 cooperate to clean the filter screen, so that the filtering efficiency is ensured.

[0045] When cleaning, the speed reduction motor 350 drives the filter drum 170 to rotate, so that the roller brush 310 is driven synchronously by the rotating filter drum 170, extruding the surface filter screen hole from the outside of the filter drum 170 to remove the substances stuck in the screen hole, and the annular brush 330 sweeps the inner wall of the rotating filter drum 170 to remove the attached impurities; the annular brush 330 is driven by the reciprocating member 370 to move up and down, so that the annular brush 330 performs comprehensive cleaning work on the inner wall of the filter drum 170;

[0046] The impurities after cleaning fall into the barrel 570 which is butted at the bottom of the filter drum 170, the barrel 570 is sealed and separated by four sealing plates 510, any two adjacent sealing plates 510 form a containing groove, the impurities fall into the containing groove, the containing groove is butted with the slag discharge port 571 by rotating the rotating shaft 530 driven by the stepping motor 550, so that the slag discharge operation can be performed, this process does not need to stop water and machine, does not affect the normal operation of the equipment, does not need manual disassembly and cleaning, convenient and fast operation, reduces the labor cost, improves the filtering efficiency;

[0047] The use convenience of the user is improved, and the frequency of manual maintenance is reduced; the corrosion-resistant and high-temperature-resistant material is adopted, and the service life of the equipment is prolonged.

[0048] The above only describes the embodiments of the present application and does not limit the protection scope of the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

Claims

1. A filtering device for a variable frequency heat pump water heater, characterized in that, The utility model provides a kind of water purifier, including Pipeline assembly (100), the pipeline assembly (100) includes inlet pipe (110), outlet pipe (130) and filter tube (150), one end of the inlet pipe (110) is communicated with the filter tube (150) water inlet, one end of the outlet pipe (130) is communicated with the filter tube (150) water outlet, the filter tube (150) is built-in filter cartridge (170); Cleaning assembly (300), the cleaning assembly (300) includes roller body brush (310) and annular brush (330), the roller body brush (310) surface is in rolling contact with the outer wall of the filter tube (150), the protruding brush column of the roller body brush (310) surface is correspondingly arranged with the filter hole on the surface of the filter tube (150), one end of the annular brush (330) is arranged in the filter cartridge (170), the filter tube (150) is provided with a speed reducer motor (350) for driving the filter cartridge (170) to rotate outside, and a reciprocating member (370) for driving the annular brush (330) to move up and down is synchronously provided; Deslagging assembly (500), the deslagging assembly (500) includes sealing plate (510), rotating shaft (530) and step motor (550), the filter tube (150) is fixed with a communication pipe, the lower end of the filter cartridge (170) is rotatably inserted into the communication pipe, the lower end of the communication pipe is butted with a barrel (570), the rotating shaft (530) is rotatably installed in the barrel (570), the sealing plate (510) is fixedly connected with the rotating shaft (530), and four sealing plates (510) are provided, the four sealing plates (510) are arranged at equal angles around the rotating shaft (530), the end of the sealing plate (510) is in sealing contact with the inside of the barrel (570), a deslagging port (571) is formed in the bottom of the barrel (570), and the drive shaft of the step motor (550) is conductively connected with the rotating shaft (530).

2. The filtering device for a variable-frequency heat pump water heater according to claim 1, characterized in that, Waterproof bearing is installed between the outer wall of the filter cartridge (170) and the inner wall of the filter tube (150) to reduce the rotating resistance of the filter cartridge (170) in the filter tube (150), and sealing pads are respectively arranged at the upper end and the lower end of the filter cartridge (170), the sealing pads are arranged between the inner wall of the filter tube (150) and the outer wall of the filter cartridge (170), and the communication position of the outlet pipe (130) and the filter tube (150) is arranged between the two sealing pads.

3. The filtering device for a variable-frequency heat pump water heater according to claim 1, characterized in that, The annular brush (330) includes a cylinder body (331) and a brush body (333), the cylinder body (331) communicates the inside of the filter cartridge (170) with the inlet pipe (110), the brush body (333) is spirally arranged on the circumferential surface of the cylinder body (331), the brush body (333) is arranged in the filter cartridge (170), and the brush body (333) is in contact with the inner wall of the filter cartridge (170).

4. The filtering device for a variable-frequency heat pump water heater according to claim 3, characterized in that, The outer wall of the filter pipe (150) is provided with a protruding communication cover (151) which is in communication with the inside of the filter pipe (150), the roller body brush (310) is rotatably installed in the communication cover (151), the brush body (333) is arranged at the lower end of the cylinder body (331), the upper end of the cylinder body (331) is connected with a corrugated pipe (335), and the other end of the corrugated pipe (335) is connected with the water inlet pipe (110).

5. The filtering device for a variable-frequency heat pump water heater according to claim 4, characterized in that, A support frame is further arranged for supporting and fixing the pipeline assembly (100), a sealing ring (171) is arranged at the upper end of the filter pipe (150), and the sealing ring (171) is in sealing contact with the outer wall of the cylinder body (331).

6. The filtering device for a variable-frequency heat pump water heater according to claim 3, characterized in that, The reciprocating member (370) comprises a cam (371), a lever (373) and a sliding sleeve (375), the cam (371) is coaxially and fixedly connected with the driving shaft of the speed reducer motor (350), one end of the lever (373) is in contact with the surface of the cam (371), the other end of the lever (373) is inserted into the sliding sleeve (375), and one end of the sliding sleeve (375) is hingedly connected with the cylinder body (331).

7. The filtering device for a variable-frequency heat pump water heater according to claim 6, characterized in that, One end of the lever (373) is provided with a roller shaft, the speed reducer motor (350) is fixed outside the filter pipe (150), a hinged seat is arranged between the two ends of the lever (373), a torsional spring is arranged at the hinged seat, the torsional spring pushes the lever (373) to rotate around the hinged seat, so that the roller shaft is always in contact with the cam (371).

8. The filtering device for a variable-frequency heat pump water heater according to claim 6, characterized in that, The speed reducer motor (350) is a double-shaft motor, one end of the speed reducer motor (350) is coaxially provided with the cam (371), the other end of the speed reducer motor (350) is coaxially fixed with a driving wheel (351), one end of the filter cartridge (170) is coaxially fixed with a driven wheel (173), and the driving wheel (351) is engaged with the driven wheel (173).

9. The filtering device for variable frequency heat pump water heater according to claim 1, characterized in that, The driving shaft of the stepping motor (550) is coaxially fixed with a worm, one end of the rotating shaft (530) is coaxially fixed with a turbine, the turbine is arranged outside the barrel (570), and the turbine is engaged with the worm.

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