CN211813473U - Water purification system - Google Patents

Water purification system Download PDF

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Publication number
CN211813473U
CN211813473U CN201921022773.4U CN201921022773U CN211813473U CN 211813473 U CN211813473 U CN 211813473U CN 201921022773 U CN201921022773 U CN 201921022773U CN 211813473 U CN211813473 U CN 211813473U
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China
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water
water outlet
water inlet
outlet
communicated
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CN201921022773.4U
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Chinese (zh)
Inventor
田宇
孙宝胜
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Nation Water Shenzhen Co ltd
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Nation Water Shenzhen Co ltd
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Abstract

The utility model discloses a water purification system, which comprises a water pump unit, a water inlet valve, a filter, a water outlet valve, a water purification faucet and a domestic faucet; the water pump unit is used for pumping tap water; the water inlet end of the water inlet valve is communicated with the water outlet end of the water pump unit; the water inlet end of the filter is communicated with the water outlet end of the water inlet valve; the water inlet end of the filter is provided with a water inlet, the water outlet end of the filter is provided with a purified water outlet and a waste water outlet, and the purified water outlet and the waste water outlet are both communicated with the water inlet; the waste water outlet is communicated with the water inlet end of the water pump unit; the water inlet of the water outlet valve is communicated with the waste water outlet, and the water outlet of the water outlet valve is communicated with the water inlet of the water pump unit; the water purifying faucet is communicated with the water purifying outlet; the domestic tap is communicated with the water outlet end of the water pump unit. The utility model discloses technical scheme has realized the zero release effect on the one hand. On the other hand, the arrangement of the booster pump is saved, and meanwhile, the electric power is saved.

Description

Water purification system
Technical Field
The utility model relates to a water purification technology field, in particular to water purification system.
Background
In a building water supply system, in order to improve the water quality flowing to a user, a filter is usually used in a pump room, the filter is usually a water inlet end communicated with a water pump unit, and waste water generated by the filter cannot be fully utilized, so that much water is wasted.
The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a water purification system, aims at improving the utilization ratio of the waste water after filtering in the pump house.
In order to achieve the purpose, the water purification system provided by the utility model comprises a water pump unit, a water inlet valve, a filter, a water outlet valve, a water purification faucet and a domestic faucet; the water pump unit is used for pumping tap water; the water inlet end of the water inlet valve is communicated with the water outlet end of the water pump unit; the water inlet end of the filter is communicated with the water outlet end of the water inlet valve; the water inlet end of the filter is provided with a water inlet, the water outlet end of the filter is provided with a purified water outlet and a waste water outlet, and the purified water outlet and the waste water outlet are both communicated with the water inlet; the waste water outlet is communicated with the water inlet end of the water pump unit; the water inlet of the water outlet valve is communicated with the wastewater outlet, and the water outlet of the water outlet valve is communicated with the water inlet of the water pump unit; the water purifying faucet is communicated with the water purifying outlet; the domestic water tap is communicated with the water outlet end of the water pump unit.
Optionally, the water inlet end of the water pump unit is further provided with a steady flow tank, and the steady flow tank is provided with a water inlet.
Optionally, a liquid level sensor is arranged in the flow stabilizing tank.
Optionally, the steady flow tank is provided with a vacuum suppressor, and an anti-negative pressure meter is arranged between the steady flow tank and the water pump unit.
Optionally, the water pump unit is provided with at least two water pumps, and at least two of the water pumps are arranged in parallel.
Optionally, a pressure sensor is arranged at the water outlet end of the water pump unit.
Optionally, the filter comprises a housing and a filter cartridge; the shell is provided with a water inlet, a purified water outlet and a wastewater outlet; the filter element is arranged in the shell; the filter element comprises a central tube, a diaphragm and a membrane ring; the central pipe comprises a water inlet hole and a water outlet hole, and the purified water outlet is communicated with the water outlet hole; the membrane is wrapped on the outer side of the central pipe, and a cavity is formed between the membrane and the shell; the water inlet and the waste water outlet are both communicated with the cavity; the membrane ring is clamped between the membrane and the inner wall of the shell.
Optionally, the ratio of the inner diameter D1 of the housing to the outer diameter D2 of the diaphragm is 2 ≦ D1: D2 ≦ 10.
Optionally, the central tube comprises a connecting section and a water passing section connected with the connecting section, and the connecting section shields the water inlet; the water passing section is hollow, and the side wall of the water passing section is provided with the water inlet hole; the membrane ring is arranged corresponding to the connecting section.
Optionally, the shell comprises a membrane shell bottle body and an end cover detachably connected with the membrane shell bottle body, the end cover covers the mounting port of the membrane shell bottle body, the water inlet is formed in the end cover, and the waste water outlet and the clean water outlet are formed in the bottom of the membrane shell bottle body; the protruding spacing ring that is equipped with of inside wall of membrane shell bottle, the spacing ring is close to the diapire setting of membrane shell bottle, the center tube passes the spacing ring, just the center tube with it is equipped with the sealing washer to press from both sides between the spacing ring.
The utility model discloses technical scheme is through setting up the filter in water pump unit's play water end, and water pump unit's the play water end is provided with the water intaking valve with the end of intaking of filter, the play water end of filter is provided with the outlet valve with water pump unit's the end of intaking, and the end of intaking of outlet valve communicates with the waste water outlet of filter, then when the waste water that produces through the filter is discharged by the waste water outlet on the one hand, waste water passes through the end of intaking of outlet valve flow direction water pump unit, simultaneously water pump unit's the end of intaking intercommunication municipal water supply, consequently, the running water of municipal supply mixes the back with the waste water by waste water outlet, extract to the filter through water pump unit once more in order to filter, thereby realized the zero release, and avoided the pollutant in the. Furthermore, the pressure difference of inlet water and outlet water can be adjusted by adjusting the water amount passing through the water inlet valve and the water outlet valve, so that the pressure difference can act on the surface of the filter membrane of the filter to provide the osmotic pressure of purified water passing through the filter membrane of the filter, the arrangement of a booster pump is saved, and meanwhile, the electric power is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the water purification system of the present invention;
FIG. 2 is a schematic structural view of a filter in the water purification system of the present invention;
fig. 3 is a cross-sectional view a-a of fig. 2.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
10 Filter 100 Shell body
110 Membrane shell bottle body 111 Purified water outlet
112 Waste water outlet 113 Spacing ring
120 End cap 121 Water inlet
200 Filter element 210 Central tube
211 Connecting segment 212 Water passing section
2121 Water inlet 2122 Water outlet
220 Diaphragm 230 Membrane ring
300 Sealing ring 101 Hollow cavity
20 Water pump set 30 Water inlet valve
40 Water outlet valve 50 Water purifying tap
60 Domestic water tap 70 Steady flow tank
71 Liquid level sensor 72 Vacuum suppressor
80 Anti-negative pressure meter 90 Pressure sensor
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a water purification system.
In the embodiment of the present invention, as shown in fig. 1, the water purification system includes a water pump unit 20, a water inlet valve 30, a filter 10, a water outlet valve 40, a water purification faucet 50 and a domestic faucet 60; the water pump unit 20 is used for pumping tap water; the water inlet end of the water inlet valve 30 is communicated with the water outlet end of the water pump unit 20; the water inlet end of the filter 10 is communicated with the water outlet end of the water inlet valve 30; the water inlet end of the filter 10 is provided with a water inlet, the water outlet end of the filter 10 is provided with a purified water outlet and a waste water outlet, and the purified water outlet and the waste water outlet are both communicated with the water inlet; the waste water outlet is communicated with the water inlet end of the water pump unit 20; the water inlet of the water outlet valve 40 is communicated with the waste water outlet, and the water outlet of the water outlet valve 40 is communicated with the water inlet of the water pump unit 20; the purified water faucet 50 is communicated with a purified water outlet; the domestic water tap 60 is communicated with the water outlet end of the water pump unit 20.
It will be appreciated that the water purification system may be used in a building water supply system, and the pump unit 20 is used to pump municipal tap water so as to deliver the filtered tap water to a user's tap after passing through the filter 10, thereby ensuring the user's demand for water. The water inlet end of the water inlet valve 30 is communicated with the water outlet end of the water pump unit 20, the water outlet end of the water inlet valve 30 is communicated with the water inlet end of the filter 10, the water inlet of the water outlet valve 40 is communicated with the wastewater outlet of the filter 10, and the water outlet of the water outlet valve 40 is communicated with the water inlet of the water pump unit 20, so that the water pump unit 20, the water inlet valve 30, the filter 10 and the water outlet valve 40 are connected in series to form a wastewater recycling loop, namely, after tap water passes through the filter 10, wastewater generated is recycled to the water inlet end of the water pump unit 20, and the water inlet end of the water pump unit 20 is communicated with a municipal water supply source, so that the wastewater can be mixed with municipal water (i.e., tap water), pumped. It can be understood that, after the waste water is mixed with the tap water, the tap water can dilute the concentration of the waste water, so that the mixed water of the waste water and the tap water can be prevented from scouring the surface of the filter membrane of the filter 10 when passing through the filter 10 again, and the diluted mixed water can be prevented from excessively blocking the filter membrane of the filter 10, thereby prolonging the service life of the filter 10.
In addition, by respectively arranging the water inlet valve 30 and the water outlet valve 40 at the water inlet end of the filter 10 and the water outlet end of the filter 10, the pressure difference between the inlet water and the outlet water of the filter 10 can be adjusted by respectively adjusting the water amount of the water inlet valve 30 and the water amount of the water outlet valve 40; it can be understood that when the purified water is generated, the water needs to pass through the filter membrane by a certain osmotic pressure, so that the purified water can be prepared only by adjusting the water amount of the water inlet valve 30 and the water outlet valve 40 to adjust the pressure difference, and then acting on the surface of the filter membrane of the filter 10 by the pressure difference, and meanwhile, the arrangement of the booster pump can be reduced, and the electric power can be saved.
The utility model discloses technical scheme is through setting up filter 10 in water pump unit 20's play water end, and water pump unit 20's the play water end is provided with water intaking valve 30 with filter 10's the end of intaking, filter 10's the end of intaking with water pump unit 20 is provided with outlet valve 40, and outlet valve 40's the end of intaking communicates with filter 10's waste water outlet, then when the waste water that produces through filter 10 is discharged by the waste water outlet on the one hand, waste water flows to water pump unit 20's the end of intaking through outlet valve 40, simultaneously water pump unit 20's the end of intaking intercommunication municipal water supply, consequently, the running water of municipal supply mixes the back with the waste water by waste water outlet discharge, extract to filter 10 with secondary filtration through water pump unit 20 once more, thereby zero release has been realized, and avoid the excessive filter membrane that blocks up filter 10 of the pollutant in. Further, by adjusting the amount of water passing through the inlet valve 30 and the outlet valve 40, it is possible to adjust the pressure difference between the inlet and outlet water, so that the pressure difference can act on the surface of the filter membrane of the filter 10 to provide the osmotic pressure of the purified water passing through the filter membrane of the filter 10, thereby saving the arrangement of the booster pump and saving the electric power.
Further, as shown in fig. 1, a steady flow tank 70 is further disposed at the water inlet end of the water pump unit 20, and a water inlet of the steady flow tank 70 is provided. The steady flow tank 70 is arranged at the water inlet end of the water pump unit 20, so that a certain amount of water can be stored in the steady flow tank 70, and when the municipal water supply is insufficient, the water pump unit 20 can meet the water consumption of a user by pumping the water in the steady flow tank 70.
Further, as shown in fig. 1, the steady flow tank 70 is provided with a vacuum suppressor 72, and an anti-negative pressure gauge 80 is provided between the steady flow tank 70 and the water pump unit 20.
It is understood that the vacuum suppressor 72 is a vacuum suppressor 72 of the prior art familiar to those skilled in the art, the vacuum suppressor 72 is disposed at an upper portion of the ballast tank 70, and the generation of negative pressure in the ballast tank 70 can be prevented by providing the vacuum suppressor 72 on the ballast tank 70. For example, when the water consumption of the user is larger than that of municipal water supply, the water level in the steady flow tank 70 is reduced, the pressure is reduced, and negative pressure is easily formed, at the moment, the air inlet valve of the vacuum suppressor 72 is opened, and the atmosphere can enter the steady flow tank 70, so that the negative pressure effect is eliminated. When the water consumption of the user is reduced, the water level in the steady flow tank 70 is raised, so that the air pressure in the steady flow tank 70 is raised, and the exhaust valve of the vacuum suppressor 72 can be opened for exhausting.
In addition, by providing the anti-negative pressure gauge 80 between the ballast tank 70 and the water pump unit 20, the pressure in the pipeline can be monitored by the negative pressure gauge, so that the intake valve of the vacuum suppressor 72 can be controlled by the controller when a negative pressure value occurs.
Further, as shown in fig. 1, a liquid level sensor 71 is provided in the steady flow tank 70.
It will be appreciated that the water purification system also includes a controller that monitors the water level in the ballast tank 70 by providing a level sensor 71 in the ballast tank 70. For example, when the water level in the steady flow tank 70 is lowered to the lowest water level, the liquid level sensor 71 on the steady flow tank 70 sends a stop signal to the controller, so that the controller controls the water pump unit 20 and the like to stop operating.
Further, as shown in fig. 1, the water pump assembly 20 includes at least two water pumps, and the at least two water pumps are arranged in parallel. By providing at least two water pumps arranged in parallel, the efficiency of water supply to the user can be improved when each water pump is operated.
Further, as shown in fig. 1, the water outlet end of the water pump assembly 20 is provided with a pressure sensor 90.
The pressure sensor 90 may detect the pressure at the outlet end of the pump assembly 20 or at the user's faucet. When the pressure of the pressure sensor 90 is higher, the pressure sensor 90 can transmit a signal to the controller, so that the controller controls the water pump unit 20 to work at a reduced frequency or at a reduced speed; when the pressure of the pressure sensor 90 is small, the pressure sensor 90 transmits a signal to the controller, and the controller controls the water pump unit 20 to run at an up-speed or work at an up-frequency.
Referring to fig. 2 and fig. 3, in order to achieve a better filtering effect, the filter 10 of the present invention includes a housing 100 and a filter element 200; the shell 100 is provided with a water inlet 121, a purified water outlet 111 and a waste water outlet 112; the filter cartridge 200 is disposed inside the housing 100; the cartridge 200 includes a center tube 210, a membrane sheet 220, and a membrane ring 230; the central tube 210 includes a water inlet 2121 and a water outlet 2122, and the purified water outlet 111 is communicated with the water outlet 2122; the membrane 220 is wrapped outside the central tube 210, and a cavity 101 is formed between the membrane and the shell 100; the water inlet 121 and the waste water outlet 112 are both communicated with the cavity 101; the diaphragm ring 230 is sandwiched between the diaphragm 220 and the inner wall of the housing 100.
By installing the filter cartridge 200 in the housing 100, the housing 100 is provided with the water inlet 121, and tap water can enter the housing 100 from the water inlet 121, thereby performing filtration through the filter cartridge 200. Specifically, the filter element 200 includes a central tube 210, a membrane 220 wrapped outside the central tube 210, and a membrane ring 230 sandwiched between the membrane 220 and the inner wall of the housing 100, so that tap water can be firstly purified by the membrane ring 230, and then purified by the membrane 220, and finally flow into the central tube 210 and be discharged through the purified water outlet 111. In addition, a cavity 101 is formed between the membrane 220 and the housing 100, and the waste water outlet 112 is communicated with the cavity 101, so that the concentrated water which does not penetrate through the membrane 220 into the central pipe 210 is retained in the cavity 101 and can be discharged through the waste water outlet 112. The membrane ring 230 is disposed between the membrane 220 and the housing 100, so that the filter element 200 can be stably installed in the housing 100, and the stability of installation of the filter element 200 is ensured.
Further, as shown in fig. 3, the ratio of the inner diameter D1 of the housing 100 to the outer diameter D2 of the diaphragm 220 ranges from: d1 is more than or equal to 2, and D2 is less than or equal to 10. By setting the range of the ratio of the inner diameter D1 of the housing 100 to the outer diameter D2 of the diaphragm 220 to 2. ltoreq. D1: D2. ltoreq.10; it is possible to ensure that the water holding chamber has a suitable water holding space to prevent the membrane 220 from being blocked by contaminants soon, and on the other hand, to prevent the housing 100 of the filter 10 from being too large relative to the filter element 200, so that the housing 100 occupies a large installation space under the condition that the filter element 200 has the same pure water producing amount.
Referring to fig. 2 and 3, the housing 100 includes a membrane shell bottle 110 and an end cap 120 detachably connected to the membrane shell bottle 110, the end cap 120 covers the mounting opening of the membrane shell bottle 110, the water inlet 121 is disposed on the end cap 120, and the waste water outlet 112 and the purified water outlet 111 are disposed at the bottom of the membrane shell bottle 110.
By providing the housing 100 with the membrane housing bottle 110 and the end cap 120 detachably connected to the membrane housing bottle 110, the user can easily replace the filter cartridge 200 inside at any time, so that the housing 100 can be reused. Specifically, the membrane housing vial 110 and the end cap 120 may be threaded or snap-fit, etc. In order to guarantee better leakproofness, the utility model discloses optional membrane shell bottle 110 and end cover 120 threaded connection among the technical scheme, one of them of membrane shell bottle 110 and end cover 120 can be equipped with the internal thread promptly, and another person corresponds and is equipped with the external screw thread, closes the effect of being connected who realizes membrane shell bottle 110 and end cover 120 through internal thread and external screw thread soon.
In addition, by opening the water inlet 121 at the end cap 120, and the waste water outlet 112 and the purified water outlet 111 at the bottom of the membrane housing bottle 110, the structure of the filter cartridge 200 is made relatively simple. Of course, it is understood that the waste water outlet 112 and/or the clean water outlet 111 may be located at the same end as the water inlet 121.
Further, as shown in fig. 3, a limiting ring 113 is convexly disposed on an inner side wall of the membrane casing bottle body 110, the limiting ring 113 is disposed near a bottom wall of the membrane casing bottle body 110, the central tube 210 penetrates through the limiting ring 113, and a sealing ring 300 is sandwiched between the central tube 210 and the limiting ring 113. Through the setting of above-mentioned spacing ring 113, can play spacing effect to the installation of filter core 200 on the one hand to further improve the installation effectiveness of filter core 200. Through locating sealing washer 300 clamp between center tube 210 and spacing ring 113, make cavity 101 that forms between diaphragm 220 and the membrane shell bottle 110 not communicate with the export of center tube 210 to avoid water purification and waste water to mix, guaranteed the play water quality of water purification.
Further, as shown in fig. 3, the central tube 210 includes a connecting section 211 and a water passing section 212 connected to the connecting section 211, wherein the connecting section 211 shields the water inlet 121; the water passing section 212 is hollow, and the side wall of the water passing section 212 is provided with a water inlet 2121; the membrane ring 230 is disposed corresponding to the connection section 211.
Through the above arrangement, the tap water flowing in from the water inlet 121 is prevented from flowing into the central tube 210 first, but the tap water is ensured to be firstly purified by the membrane ring 230 and then enter the central tube 210 from the water inlet 2121 of the water passing section 212 of the central tube 210 after being purified by the membrane 220, so that the water in the central tube 210 is ensured to be completely purified pure water.
The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims (10)

1. A water purification system, comprising:
the water pump unit is used for pumping tap water;
the water inlet end of the water inlet valve is communicated with the water outlet end of the water pump unit;
the water inlet end of the filter is communicated with the water outlet end of the water inlet valve; the water inlet end of the filter is provided with a water inlet, the water outlet end of the filter is provided with a purified water outlet and a waste water outlet, and the purified water outlet and the waste water outlet are both communicated with the water inlet; the waste water outlet is communicated with the water inlet end of the water pump unit;
the water inlet of the water outlet valve is communicated with the wastewater outlet, and the water outlet of the water outlet valve is communicated with the water inlet of the water pump unit;
the water purifying faucet is communicated with the water purifying outlet; and
the domestic water faucet is communicated with the water outlet end of the water pump unit.
2. The water purification system of claim 1, wherein the water inlet end of the water pump unit is further provided with a flow stabilizing tank, and the water inlet end of the flow stabilizing tank is provided with a water inlet.
3. The water purification system of claim 2, wherein a level sensor is disposed in the ballast tank.
4. The water purification system of claim 2, wherein the steady flow tank is provided with a vacuum suppressor, and an anti-negative pressure gauge is arranged between the steady flow tank and the water pump unit.
5. The water purification system of claim 1, wherein the water pump assembly comprises at least two water pumps, at least two of the water pumps being arranged in parallel.
6. The water purification system of claim 2, wherein a pressure sensor is arranged at the water outlet end of the water pump unit.
7. The water purification system of any one of claims 1 to 6, wherein the filter comprises:
the device comprises a shell, a water inlet, a purified water outlet and a wastewater outlet, wherein the shell is provided with the water inlet, the purified water outlet and the wastewater outlet; and
a filter element disposed within the housing; the filter element comprises:
the central pipe comprises a water inlet hole and a water outlet hole, and the purified water outlet is communicated with the water outlet hole;
the membrane is wrapped on the outer side of the central pipe, and a cavity is formed between the membrane and the shell; the water inlet and the waste water outlet are both communicated with the cavity; and
and the membrane ring is clamped between the membrane and the inner wall of the shell.
8. The water purification system of claim 7, wherein the ratio of the inner diameter D1 of the housing to the outer diameter D2 of the diaphragm is 2. ltoreq. D1: D2. ltoreq.10.
9. The water purification system of claim 7, wherein the central tube comprises a connection section and a water passing section connected to the connection section, the connection section covering the water inlet; the water passing section is hollow, and the side wall of the water passing section is provided with the water inlet hole; the membrane ring is arranged corresponding to the connecting section.
10. The water purification system of claim 7, wherein the housing comprises a membrane shell bottle body and an end cap detachably connected with the membrane shell bottle body, the end cap covers the mounting port of the membrane shell bottle body, the water inlet is arranged at the end cap, and the waste water outlet and the purified water outlet are arranged at the bottom of the membrane shell bottle body; the protruding spacing ring that is equipped with of inside wall of membrane shell bottle, the spacing ring is close to the diapire setting of membrane shell bottle, the center tube passes the spacing ring, just the center tube with it is equipped with the sealing washer to press from both sides between the spacing ring.
CN201921022773.4U 2019-07-02 2019-07-02 Water purification system Active CN211813473U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921022773.4U CN211813473U (en) 2019-07-02 2019-07-02 Water purification system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921022773.4U CN211813473U (en) 2019-07-02 2019-07-02 Water purification system

Publications (1)

Publication Number Publication Date
CN211813473U true CN211813473U (en) 2020-10-30

Family

ID=72995734

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921022773.4U Active CN211813473U (en) 2019-07-02 2019-07-02 Water purification system

Country Status (1)

Country Link
CN (1) CN211813473U (en)

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