CN212801792U - Non-negative pressure variable frequency water supply equipment - Google Patents

Non-negative pressure variable frequency water supply equipment Download PDF

Info

Publication number
CN212801792U
CN212801792U CN202021346675.9U CN202021346675U CN212801792U CN 212801792 U CN212801792 U CN 212801792U CN 202021346675 U CN202021346675 U CN 202021346675U CN 212801792 U CN212801792 U CN 212801792U
Authority
CN
China
Prior art keywords
pipe
water
filter
water supply
variable frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202021346675.9U
Other languages
Chinese (zh)
Inventor
刘永超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongzhuo Intelligent Fluid Equipment Hubei Co ltd
Original Assignee
Zhongzhuo Intelligent Fluid Equipment Hubei Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhongzhuo Intelligent Fluid Equipment Hubei Co ltd filed Critical Zhongzhuo Intelligent Fluid Equipment Hubei Co ltd
Priority to CN202021346675.9U priority Critical patent/CN212801792U/en
Application granted granted Critical
Publication of CN212801792U publication Critical patent/CN212801792U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Water Treatment By Sorption (AREA)

Abstract

The non-negative pressure variable frequency water supply device comprises a steady flow tank, a water supply pipe, a shell, a pump body, a variable frequency motor, a heat transfer pipe and a water outlet pipe; the flow stabilization tank is provided with a negative pressure prevention valve, a water inlet hole, a water outlet hole and a filtering component for filtering water; the water inlet hole is connected with a water inlet pipe which is communicated with a municipal water supply system pipeline; the filtering component is connected with the water discharge hole and the liquid inlet pipe orifice of the water outlet pipe; the inner wall of the shell is provided with a noise reduction layer, and the bottom surface of the shell is provided with a damping buffer plate for mounting a pump body and a variable frequency motor; the liquid outlet port of the pump body is connected with a water supply pipe which is connected with a water pipeline, and the pump body is in transmission connection with a variable frequency motor; the peripheral surface of the variable frequency motor is provided with a heat dissipation plate along the circumferential direction; the heat transfer pipe is arranged on the heat dissipation plate, the liquid outlet pipe opening of the heat transfer pipe is connected with the liquid inlet port of the pump body, and the liquid inlet pipe opening of the heat transfer pipe is connected with the liquid outlet pipe opening of the water outlet pipe. The utility model discloses can filter the back to water and carry, have the absorbing function of making an uproar of falling to can carry out effectual heat dissipation to inverter motor.

Description

Non-negative pressure variable frequency water supply equipment
Technical Field
The utility model relates to a water supply equipment technical field especially relates to no negative pressure frequency conversion water supply equipment.
Background
The non-negative pressure variable frequency water supply equipment takes a municipal pipe network as a water source, fully utilizes the original pressure of the municipal pipe network, forms a closed continuous relay pressurization water supply mode to supply water for human living, and has good energy-saving effect and no secondary pollution of water quality; the non-negative pressure variable frequency water supply equipment is widely used in the field of life of buildings, houses, communities and the like, but in the using process of the non-negative pressure variable frequency water supply equipment, moss is easy to grow on the inner wall of the water storage tank, impurities can be separated from a pipeline, the moss and the impurities doped in water cause influence on the health of people after being drunk by the people, and in addition, noise pollution can be generated during the operation of equipment such as a motor and the like; therefore, the application provides the non-negative pressure variable frequency water supply equipment.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem who exists among the background art, the utility model provides a no negative pressure frequency conversion water supply equipment, the utility model discloses can filter the back to water and carry to can carry out effectual heat dissipation to inverter motor.
(II) technical scheme
In order to solve the problems, the utility model provides a non-negative pressure variable frequency water supply device, which comprises a steady flow tank, a control cabinet, a water supply pipe, a shell, a pump body, a variable frequency motor, a heat transfer pipe and a water outlet pipe;
the flow stabilization tank is provided with a negative pressure prevention valve, a water inlet hole, a water outlet hole and a filtering component for filtering water; the water inlet hole is connected with a water inlet pipe which is communicated with a municipal water supply system pipeline; the liquid inlet end of the filtering component is connected with the water outlet hole, and the liquid outlet end of the filtering component is connected with the liquid inlet pipe orifice of the water outlet pipe;
a sealing door is arranged on the shell, a noise reduction layer is arranged on the inner wall of the shell, and a damping buffer plate is arranged on the bottom surface of the shell; the pump body and the variable frequency motor are positioned in the shell and are arranged on the damping buffer plate side by side, the liquid outlet port of the pump body is connected with a water supply pipe connected with a water pipeline, and the pump body is in transmission connection with the variable frequency motor; the peripheral surface of the variable frequency motor is provided with a heat dissipation plate along the circumferential direction;
the heat transfer pipe is arranged on the heat dissipation plate, the liquid outlet pipe opening of the heat transfer pipe is connected with the liquid inlet port of the pump body, and the liquid inlet pipe opening of the heat transfer pipe is connected with the liquid outlet pipe opening of the water outlet pipe;
the control cabinet is provided with a key module and a display screen, and a central processing unit is arranged in the control cabinet; the central processing unit, the key module, the display screen and the variable frequency motor are electrically connected.
Preferably, a plurality of groups of supporting columns are uniformly arranged on the lower end face of the flow stabilizing tank; the shell is positioned right below the flow stabilizing tank; the drain hole is positioned on the lower end surface of the steady flow tank.
Preferably, the heat dissipation plate and the heat transfer pipe are made of aluminum alloy materials.
Preferably, the heat transfer pipe is wound around an outer surface of the heat radiating plate.
Preferably, the shock absorption buffer plate comprises a shock absorption plate, a first elastic pad, a first metal plate, a second elastic pad and a second metal plate;
one end of the first elastic cushion is connected with one end of the damping plate, and the other end of the first elastic cushion is connected with one end of a first metal plate for mounting the pump body and the variable frequency motor;
one end of the second elastic cushion is connected with the other end of the damping plate, and the other end of the second elastic cushion is connected with one end of the second metal plate; the other end of the second metal plate is connected with the inner wall of the shell.
Preferably, the filter assembly comprises two sets of filter discs and filter cartridges;
one end of the filter cartridge is provided with a second connecting pipe used for being connected with the water discharging hole, and the other end of the filter cartridge is provided with a first connecting pipe used for being connected with the water discharging pipe;
two groups of filter discs are screwed into the filter cartridge through the opening threads at the two ends of the filter cartridge respectively, a plurality of groups of filter holes are uniformly arranged on the two groups of filter discs respectively, two groups of filter screens are arranged on the mutually close end surfaces of the two groups of filter discs respectively, and an adsorption bin for filling activated carbon particles is formed between the two groups of filter discs and the inner wall of the filter cartridge; wherein, the diameter value of the meshes of the filter screen is smaller than the diameter value of the filter holes, and the diameter value of the meshes of the filter screen is smaller than the outer diameter value of the active carbon particles.
Preferably, the device further comprises a third connecting pipe; a first control valve is arranged on the third connecting pipe, one end of the third connecting pipe is connected with the second connecting pipe, the other end of the third connecting pipe is connected with the first connecting pipe, and a second control valve is arranged on the second connecting pipe between a pipe orifice at one end of the third connecting pipe and one end of the filter cylinder; and a third control valve is arranged on the first connecting pipe between the pipe orifice at the other end of the third connecting pipe and the other end of the filter cylinder.
Preferably, the device further comprises a first flange and a fourth flange; wherein, the two ends of the filter cartridge are respectively provided with a second flange and a third flange;
the first flange is connected with a pipe orifice at one end of the second connecting pipe and is connected with the second flange in a matching way;
the fourth flange is connected with a pipe orifice at one end of the first connecting pipe, and the fourth flange is connected with the third flange in a matching way.
Preferably, the end face, far away from the filter screen, of the filter disc is provided with a matching blind hole used for matching with a screwdriver.
The above technical scheme of the utility model has following profitable technological effect: in the utility model, when in use, water in the pipeline of the political affairs water supply system flows into the flow stabilizing tank through the water inlet pipe, the variable frequency motor is electrified to drive the pump body to run, the water in the flow stabilizing tank flows into the heat transfer pipe through the water outlet pipe after being filtered by the filtering component, impurities in the water such as impurities generated by falling of the pipeline are filtered through the arranged filtering component, the quality of the water is improved, the safety of drinking water of people is guaranteed, and the filtering component is convenient to disassemble, assemble and clean; the filtered water enters the pump body and is conveyed into the water using pipeline by the water conveying pipe for people to use; the pump body and the variable frequency motor are arranged in the shell, the noise reduction layer is arranged on the inner wall of the shell, noise reduction treatment can be effectively carried out on noise generated by operation of the shell, and in addition, the pump body and the variable frequency motor are both arranged on the damping buffer plate, so that the operation stability of the pump body and the variable frequency motor is greatly improved, the service life of the pump body and the variable frequency motor is prolonged, and the noise is further reduced; heat energy generated when the variable frequency motor operates is transferred to the heat dissipation plate, and water flowing through the heat transfer pipe takes away the heat energy on the heat dissipation plate, so that the variable frequency motor is cooled, and the use performance of the variable frequency motor is improved.
Drawings
Fig. 1 is the structure schematic diagram of the non-negative pressure variable frequency water supply device provided by the utility model.
Fig. 2 is the utility model provides a shock attenuation buffer board's among no negative pressure frequency conversion water supply equipment structural schematic.
Fig. 3 is the structural schematic diagram of the filtering component in the non-negative pressure variable frequency water supply equipment provided by the utility model.
Reference numerals: 1. a flow stabilizing tank; 2. a water inlet pipe; 3. an anti-negative pressure valve; 4. a control cabinet; 5. a support pillar; 6. a water supply pipe; 7. a housing; 8. a pump body; 9. a variable frequency motor; 10. a shock absorbing bumper plate; 101. a damper plate; 102. a first elastic pad; 103. a first metal plate; 104. a second elastic pad; 105. a second metal plate; 11. a heat dissipation plate; 12. a heat transfer tube; 13. a water outlet pipe; 14. a filter assembly; 1401. a third connecting pipe; 1402. a first control valve; 1403. a second connecting pipe; 1404. a second control valve; 1405. a first flange; 1406. a second flange; 1407. a filter tray; 1408. activated carbon particles; 1409. a filter cartridge; 1410. a filter screen; 1411. a third control valve; 1412. a first connecting pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-3, the non-negative pressure variable frequency water supply device provided by the present invention comprises a steady flow tank 1, a control cabinet 4, a water supply pipe 6, a housing 7, a pump body 8, a variable frequency motor 9, a heat transfer pipe 12 and a water outlet pipe 13;
the flow stabilization tank 1 is provided with a negative pressure prevention valve 3, a water inlet hole, a water outlet hole and a filtering component 14 for filtering water; air in the flow stabilization tank 1 is discharged through the negative pressure prevention valve 3;
the water inlet hole is connected with a water inlet pipe 2 which is communicated with a municipal water supply system pipeline; water in the municipal water supply system pipeline flows into the steady flow tank 1 through the water inlet pipe 2 and is stored;
the liquid inlet end of the filtering component 14 is connected with the drainage hole, and the liquid outlet end of the filtering component 14 is connected with the liquid inlet pipe orifice of the water outlet pipe 13;
a sealing door is arranged on the shell 7; one end of the sealing door is rotatably connected with the shell 7 through a hinge, the other end of the sealing door is locked with the shell 7 through a lockset, and the lockset is a product which can be directly selected and purchased in the existing market and is not described in detail; a noise reduction layer is arranged on the inner wall of the shell 7 to offset noise generated by the operation of the pump body 8 and the variable frequency motor 9; the noise reduction layer is selected from but not limited to be formed by a sound insulation pad adhered to the inner wall of the shell 7;
the bottom surface of the shell 7 is provided with a damping buffer plate 10; the pump body 8 and the variable frequency motor 9 are both positioned in the shell 7 and are arranged on the damping buffer plate 10 side by side, the liquid outlet port of the pump body 8 is connected with a water supply pipe 6 for connecting with a water pipeline, and the pump body 8 is in transmission connection with the variable frequency motor 9; a heat dissipation plate 11 is arranged on the peripheral surface of the variable frequency motor 9 along the circumferential direction; wherein, the water supply pipe 6 penetrates into the shell 7, and the water supply pipe 6 is hermetically connected with the shell 7;
the heat transfer pipe 12 is arranged on the heat dissipation plate 11, the liquid outlet pipe opening of the heat transfer pipe 12 is connected with the liquid inlet port of the pump body 8, and the liquid inlet pipe opening of the heat transfer pipe 12 is connected with the liquid outlet pipe opening of the water outlet pipe 13; wherein, a pipe orifice at one end of the water outlet pipe 13 penetrates into the shell 7, and the water outlet pipe 13 is hermetically connected with the shell 7;
the control cabinet 4 is provided with a key module and a display screen, and a central processing unit is arranged in the control cabinet 4; the central processor, the key module, the display screen and the variable frequency motor 9 are electrically connected.
In the utility model, when in use, water in the pipeline of the political affairs water supply system flows into the steady flow tank 1 through the water inlet pipe 2, the variable frequency motor 9 is electrified to drive the pump body 8 to run, the water in the steady flow tank 1 flows into the heat transfer pipe 12 through the water outlet pipe 13 after being filtered by the filtering component 14, impurities in the water such as impurities generated by falling of the pipeline are filtered through the arranged filtering component 14, the quality of the water is improved, and the safety of drinking water of people is ensured; the filtered water enters the pump body 8 and is conveyed into a water using pipeline by the water conveying pipe 6 for people to use; the pump body 8 and the variable frequency motor 9 are arranged in the shell 7, the inner wall of the shell 7 is provided with a noise reduction layer which can effectively reduce noise generated by the operation of the shell, and in addition, the pump body 8 and the variable frequency motor 9 are both arranged on the damping buffer plate 10, so that the operation stability of the pump body 8 and the variable frequency motor 9 is greatly improved, and the service life of the pump body is prolonged; heat energy generated when the variable frequency motor 9 operates is transferred to the heat dissipation plate 11, and the heat energy on the heat dissipation plate 11 is taken away by water flowing through the heat transfer pipe 12, so that the variable frequency motor 9 is dissipated, and the use performance of the variable frequency motor 9 is improved.
In an optional embodiment, a plurality of groups of supporting columns 5 are uniformly arranged on the lower end surface of the flow stabilizing tank 1; the shell 7 is positioned right below the flow stabilizing tank 1; the drain hole is positioned on the lower end surface of the steady flow tank 1.
In an alternative embodiment, the heat dissipation plate 11 and the heat transfer pipe 12 are made of aluminum alloy; the heat dissipation plate 11 and the heat transfer pipe 12 made of aluminum alloy have good heat transfer and heat conduction performance.
In an alternative embodiment, the heat transfer pipe 12 is wound around the outer surface of the heat dissipation plate 11 to improve the heat dissipation effect of the inverter motor 9.
In an alternative embodiment, the shock absorbing and cushioning plate 10 includes a shock absorbing plate 101, a first elastic pad 102, a first metal plate 103, a second elastic pad 104, and a second metal plate 105;
one end of the first elastic pad 102 is connected with one end of the damping plate 101, and the other end of the first elastic pad 102 is connected with one end of a first metal plate 103 for mounting the pump body 8 and the variable frequency motor 9;
one end of the second elastic pad 104 is connected to the other end of the shock absorbing plate 101, and the other end of the second elastic pad 104 is connected to one end of the second metal plate 105; the other end of the second metal plate 105 is connected to the inner wall of the housing 7;
first metal sheet 103 and second metal sheet 105 that shock attenuation buffer board 10 was equipped with improve the intensity of shock attenuation buffer board 10, and first cushion 102, first metal sheet 103 and second cushion 104 can effectual pump body 8 and the vibrations that inverter motor 9 operation produced carry out the shock attenuation buffering, improve its stability.
In an alternative embodiment, the filter assembly 14 includes two sets of filter discs 1407 and filter cartridges 1409;
one end of the filter cartridge 1409 is provided with a second connecting pipe 1403 for connecting with the drain hole, and the other end of the filter cartridge 1409 is provided with a first connecting pipe 1412 for connecting with the water outlet pipe 13;
two groups of filter discs 1407 are screwed into the filter cartridge 1409 through openings at two ends of the filter cartridge 1409 respectively, a plurality of groups of filter holes are uniformly arranged on the two groups of filter discs 1407 respectively, two groups of filter screens 1410 are arranged on the end surfaces of the two groups of filter discs 1407 close to each other respectively, and an adsorption bin for filling activated carbon particles 1408 is formed between the two groups of filter discs 1407 and the inner wall of the filter cartridge 1409; wherein, the diameter value of the mesh of the filter screen 1410 is smaller than the diameter value of the filter holes, and the diameter value of the mesh of the filter screen 1410 is smaller than the outer diameter value of the activated carbon particles 1408;
when the water filter is used, water in the flow stabilization tank 1 enters the filter cylinder 1409 through the second connecting pipe 1403, and impurities in the water are filtered by the filter disc 1407 and the filter screen 1410 arranged on the filter disc 1407; the filtered water enters the adsorption bin to act with the activated carbon particles 1408 to adsorb and purify the water, and the adsorbed and purified water flows into the water outlet pipe 13 through the first connecting pipe 1412.
In an alternative embodiment, a third connection tube 1401 is further included; a first control valve 1402 is arranged on the third connecting pipe 1401, one end of the third connecting pipe 1401 is connected with the second connecting pipe 1403, the other end of the third connecting pipe 1401 is connected with the first connecting pipe 1412, wherein a second control valve 1404 is arranged on the second connecting pipe 1403 between the pipe orifice at one end of the third connecting pipe 1401 and one end of the filter cylinder 1409; a third control valve 1411 is provided on a first connection pipe 1412 between the other end nozzle of the third connection pipe 1401 and the other end of the filter cartridge 1409.
In an alternative embodiment, a first flange 1405 and a fourth flange are also included; wherein, the two ends of the filter cartridge 1409 are respectively provided with a second flange 1406 and a third flange;
the first flange 1405 is connected with a nozzle at one end of the second connecting pipe 1403, and the first flange 1405 is connected with the second flange 1406 in a matching way;
the fourth flange is connected with a pipe orifice at one end of the first connecting pipe 1412, and the fourth flange is connected with the third flange in a matching manner;
when impurities in the filter cartridge 1409 need to be cleaned and the activated carbon particles 1408 need to be replaced, the first control valve 1402 is opened, the second control valve 1404 and the third control valve 1411 are closed, the water in the second connecting pipe 1403 flows into the third connecting pipe 1401, and the water in the third connecting pipe 1401 flows into the first connecting pipe 1412 and finally flows into the water outlet pipe 13; the first flange 1405 and the second flange 1406, and the fourth flange and the third flange are separated, so that the filter cartridge 1409 can be taken down, and the operation is simple and the use is convenient.
In an alternative embodiment, the end surface of the filter disc 1407 remote from the filter screen 1410 is provided with a blind hole for a screwdriver, so as to facilitate the assembly and disassembly of the filter disc 1407.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims (9)

1. The non-negative pressure variable frequency water supply equipment is characterized by comprising a steady flow tank (1), a control cabinet (4), a water supply pipe (6), a shell (7), a pump body (8), a variable frequency motor (9), a heat transfer pipe (12) and a water outlet pipe (13);
the flow stabilization tank (1) is provided with a negative pressure prevention valve (3), a water inlet hole, a water drain hole and a filtering component (14) for filtering water; the water inlet hole is connected with a water inlet pipe (2) which is communicated with a municipal water supply system pipeline; the liquid inlet end of the filtering component (14) is connected with the drain hole, and the liquid outlet end of the filtering component (14) is connected with the liquid inlet pipe orifice of the water outlet pipe (13);
a sealing door is arranged on the shell (7), a noise reduction layer is arranged on the inner wall of the shell (7), and a damping buffer plate (10) is arranged on the bottom surface of the shell (7); the pump body (8) and the variable frequency motor (9) are both positioned in the shell (7) and are arranged on the damping buffer plate (10) side by side, the liquid outlet port of the pump body (8) is connected with a water supply pipe (6) connected with a water pipeline, and the pump body (8) is in transmission connection with the variable frequency motor (9); a heat dissipation plate (11) is arranged on the peripheral surface of the variable frequency motor (9) along the circumferential direction;
the heat transfer pipe (12) is arranged on the heat dissipation plate (11), the liquid outlet pipe opening of the heat transfer pipe (12) is connected with the liquid inlet port of the pump body (8), and the liquid inlet pipe opening of the heat transfer pipe (12) is connected with the liquid outlet pipe opening of the water outlet pipe (13);
the control cabinet (4) is provided with a key module and a display screen, and a central processing unit is arranged in the control cabinet (4); the central processor, the key module, the display screen and the variable frequency motor (9) are electrically connected.
2. The non-negative-pressure variable-frequency water supply equipment according to claim 1, wherein a plurality of groups of supporting columns (5) are uniformly arranged on the lower end surface of the steady flow tank (1); the shell (7) is positioned right below the flow stabilizing tank (1); the drain hole is positioned on the lower end surface of the steady flow tank (1).
3. The non-negative-pressure variable-frequency water supply equipment according to claim 1, wherein the heat dissipation plate (11) and the heat transfer pipe (12) are made of aluminum alloy.
4. The non-negative-pressure variable-frequency water supply equipment according to claim 3, wherein the heat transfer pipe (12) is wound around the outer surface of the heat dissipation plate (11).
5. The non-negative-pressure variable-frequency water supply equipment according to claim 1, wherein the damping buffer plate (10) comprises a damping plate (101), a first elastic pad (102), a first metal plate (103), a second elastic pad (104) and a second metal plate (105);
one end of the first elastic pad (102) is connected with one end of the damping plate (101), and the other end of the first elastic pad (102) is connected with one end of a first metal plate (103) used for mounting the pump body (8) and the variable frequency motor (9);
one end of the second elastic pad (104) is connected with the other end of the damping plate (101), and the other end of the second elastic pad (104) is connected with one end of the second metal plate (105); the other end of the second metal plate (105) is connected to the inner wall of the housing (7).
6. The non-negative pressure variable frequency water supply apparatus according to claim 1, wherein the filter assembly (14) comprises two sets of filter discs (1407) and filter cartridges (1409);
one end of the filter cartridge (1409) is provided with a second connecting pipe (1403) which is connected with the drain hole, and the other end of the filter cartridge (1409) is provided with a first connecting pipe (1412) which is connected with the water outlet pipe (13);
two groups of filter discs (1407) are screwed into the filter cartridge (1409) through the openings at the two ends of the filter cartridge (1409), a plurality of groups of filter holes are uniformly arranged on the two groups of filter discs (1407), two groups of filter screens (1410) are respectively arranged on the end surfaces of the two groups of filter discs (1407) close to each other, and an adsorption bin for filling activated carbon particles (1408) is formed between the two groups of filter discs (1407) and the inner wall of the filter cartridge (1409); wherein, the diameter value of the mesh of the filter screen (1410) is smaller than the diameter value of the filter holes, and the diameter value of the mesh of the filter screen (1410) is smaller than the outer diameter value of the activated carbon particles (1408).
7. The non-negative-pressure variable-frequency water supply equipment according to claim 6, further comprising a third connecting pipe (1401); a first control valve (1402) is arranged on the third connecting pipe (1401), one end of the third connecting pipe (1401) is connected with the second connecting pipe (1403), the other end of the third connecting pipe (1401) is connected with the first connecting pipe (1412), and a second control valve (1404) is arranged on the second connecting pipe (1403) between the pipe orifice at one end of the third connecting pipe (1401) and one end of the filter cylinder (1409); a third control valve (1411) is arranged on the first connecting pipe (1412) between the pipe orifice at the other end of the third connecting pipe (1401) and the other end of the filter cylinder (1409).
8. The non-negative-pressure variable-frequency water supply equipment according to claim 7, further comprising a first flange (1405) and a fourth flange; wherein, both ends of the filter cylinder (1409) are respectively provided with a second flange (1406) and a third flange;
the first flange (1405) is connected with a pipe orifice at one end of the second connecting pipe (1403), and the first flange (1405) is connected with the second flange (1406) in a matching way;
the fourth flange is connected with a pipe orifice at one end of the first connecting pipe (1412), and the fourth flange is connected with the third flange in a matching way.
9. The non-negative-pressure variable-frequency water supply equipment according to claim 6, wherein the end surface of the filter disc (1407) far away from the filter screen (1410) is provided with a matching blind hole for matching a screwdriver.
CN202021346675.9U 2020-07-09 2020-07-09 Non-negative pressure variable frequency water supply equipment Expired - Fee Related CN212801792U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021346675.9U CN212801792U (en) 2020-07-09 2020-07-09 Non-negative pressure variable frequency water supply equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021346675.9U CN212801792U (en) 2020-07-09 2020-07-09 Non-negative pressure variable frequency water supply equipment

Publications (1)

Publication Number Publication Date
CN212801792U true CN212801792U (en) 2021-03-26

Family

ID=75100418

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021346675.9U Expired - Fee Related CN212801792U (en) 2020-07-09 2020-07-09 Non-negative pressure variable frequency water supply equipment

Country Status (1)

Country Link
CN (1) CN212801792U (en)

Similar Documents

Publication Publication Date Title
CN212801792U (en) Non-negative pressure variable frequency water supply equipment
CN109340195B (en) Fan filter unit
CN205842874U (en) A kind of air purifier using water filtration
CN210569015U (en) Vibration/noise reduction fresh air ventilator unit
CN111991937A (en) Air purification device based on online virus killing of multilevel filtration
CN210892087U (en) High-efficient supply-air outlet with structure of making an uproar falls
CN107905877A (en) Automobile exhaust gas purifying installation with silencing function
CN210874690U (en) Active carbon adsorption device for waste gas purification treatment
CN211753209U (en) Emergent purifier of environmental monitoring's air
CN102331062A (en) Noise-reducing laminar flow air supply device
CN213803162U (en) Air purifier
CN205664539U (en) Air humidifying utilizes system based on air conditioner comdenstion water
CN212067923U (en) Tap water purifier
CN214141588U (en) Household oxygenerator
CN217170949U (en) Air conditioner air distributor for ship
CN217441897U (en) Stacking type modular air purification device
CN221522345U (en) Residual sewage treatment device for hotel
CN214287144U (en) Filter
CN211471005U (en) Filtering device convenient to mount for food sewage treatment
CN214637704U (en) Environmental engineering atomizing device
CN218405696U (en) Peculiar smell removing device for public toilet
CN217173461U (en) Water purifier for drinking machine
CN216259677U (en) Efficient active carbon filter box
CN216785854U (en) Water treatment facilities convenient to installation
CN108826571A (en) A kind of internal and external circulation type fresh air purifier

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20210326

CF01 Termination of patent right due to non-payment of annual fee