CN208381763U - A kind of pressure management valve and water supply pipline system - Google Patents
A kind of pressure management valve and water supply pipline system Download PDFInfo
- Publication number
- CN208381763U CN208381763U CN201821013686.8U CN201821013686U CN208381763U CN 208381763 U CN208381763 U CN 208381763U CN 201821013686 U CN201821013686 U CN 201821013686U CN 208381763 U CN208381763 U CN 208381763U
- Authority
- CN
- China
- Prior art keywords
- valve
- pressure
- chamber
- ante
- back cavity
- 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.)
- Active
Links
Abstract
The utility model provides a kind of pressure management valve and water supply pipline system, is related to valve body technical field.In pressure management valve, main valve has epicoele, valve ante-chamber and valve back cavity, and valve ante-chamber is connected to valve back cavity, and epicoele and valve ante-chamber and valve back cavity completely cut off;The input terminal of first decompression pilot valve is connected to valve ante-chamber, and the output end of the first decompression pilot valve is connected to valve back cavity;The conducting pressure of second decompression pilot valve is greater than the conducting pressure of the first decompression pilot valve;The input terminal of time switch module is connected to valve ante-chamber, and the output end of time switch module is connected to the input terminal of the second decompression pilot valve, and the output end of the second decompression pilot valve is connected to valve back cavity, and time switch module is closed for timing or conducting;One end of throttle valve is connected to epicoele, and the other end of throttle valve is connected to valve ante-chamber.Pressure management valve can adjust the pressure of outlet, while be suitable for the low situation of water demand amount high situation and water demand amount.
Description
Technical field
The utility model relates to valve body technical fields, in particular to a kind of pressure management valve and water supply pipline system.
Background technique
It is well known that each cell daily in different time period, is different the demand of tap water, for example, one
As cell daytime it is higher to the demand of water, it is lower to the demand of water at night.But the pressure of the outlet of existing valve body is
When big for the demand of water, often there is the inadequate situation of pressure, is not able to satisfy the water demand of user in one definite value, right
In the demand hour of water, often there is the excessive situation of pressure, pipe-line system is caused drainage occur.
Therefore, design a kind of valve body, can adjust the pressure of outlet, at the same be suitable for the high situation of water demand amount and
The low situation of water demand amount.
Utility model content
The utility model embodiment provides a kind of pressure management valve and water supply pipline system, can adjust the pressure of outlet
Power, while being suitable for the low situation of water demand amount high situation and water demand amount.
The first technical solution provided by the embodiment of the utility model:
A kind of pressure management valve includes:
Main valve, the main valve have epicoele, valve ante-chamber and valve back cavity, and the valve ante-chamber is connected to the valve back cavity, described
Epicoele and the valve ante-chamber and the valve back cavity completely cut off;
The input terminal of first decompression pilot valve, the first decompression pilot valve is connected to the valve ante-chamber, and described first subtracts
The output end for pressing to pilot valve is connected to the valve back cavity;
The conducting pressure of second decompression pilot valve, the second decompression pilot valve is greater than leading for the first decompression pilot valve
Logical pressure;
Time switch module, the input terminal of the time switch module are connected to the valve ante-chamber, the time switch mould
The output end of block is connected to the input terminal of the second decompression pilot valve, the output end and the valve of the second decompression pilot valve
Back cavity connection, the time switch module is closed for timing or conducting;
Throttle valve, one end of the throttle valve are connected to the epicoele, the other end of the throttle valve and the valve ante-chamber
Connection.
Further, the time switch module includes pressure difference switch, three-way magnetic valve and control box, the pressure difference switch
Input terminal be connected to the valve ante-chamber, the output end of the pressure difference switch and it is described second decompression pilot valve input terminal connect
Logical, the control terminal of the pressure difference switch is connected to the first end A1 of the three-way magnetic valve, the second end of the three-way magnetic valve
B1 is connected to the valve ante-chamber, and the third end C1 of the three-way magnetic valve is communicated with the atmosphere, and the control box and described three is powered
The control terminal of magnet valve is electrically connected, the first end A1 that the control box is used to control the three-way magnetic valve be connected to second end B1 or
The first end A1 that person controls the three-way magnetic valve is connected to third end C1.
Further, the time switch module further includes three-way ball valve, the first end A2 of the three-way ball valve with it is described
The first end A1 of three-way magnetic valve is connected to, and the second end B2 of the three-way ball valve is connected to the control terminal of the pressure difference switch, institute
The third end C2 for stating three-way ball valve is connected to the valve ante-chamber.
Further, the pressure management valve further includes filter, and the filter is mounted on the outlet of the valve ante-chamber
Place.
Further, the pressure management valve further includes the first ball valve, the second ball valve and third ball valve, first ball valve
It is mounted on the exit of the valve ante-chamber, second ball valve is mounted between the throttle valve and the epicoele, the third
Ball valve is mounted on the inlet of the valve back cavity.
Further, the pressure management valve further includes pressure gauge, and the pressure gauge is mounted on the entrance of the valve back cavity
Place.
Further, the pressure management valve further includes the 4th ball valve, and the 4th ball valve is mounted on the pressure gauge
Inlet.
Further, the conducting pressure of the first decompression pilot valve is 4Bar, the conducting of the second decompression pilot valve
Pressure is 8Bar.
Second of technical solution provided by the embodiment of the utility model:
A kind of water supply pipline system includes pressure management valve described in the first technical solution.
Further, the water supply pipline system further includes water pump and water supplying pipe, and the water pump is connected to the valve ante-chamber,
The water supplying pipe is connected to the valve back cavity.
Pressure management valve provided by the embodiment of the utility model and the beneficial effect of water supply pipline system are:
The first decompression pilot valve, the second decompression pilot valve and time switch module are provided in pressure management valve, and
The conducting pressure of the second decompression pilot valve is greater than the conducting pressure of the first decompression pilot valve.It is high in water demand amount
In the case of, pressure management valve can enable the second decompression pilot valve, to increase the pressure of Main valve outlet, guarantee the use of community user
Water demand;In the case where water demand amount is low, pressure management valve can enable the first decompression pilot valve, to reduce Main valve outlet
Pressure, avoid pipe-line system leak.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the overall structure diagram for the pressure management valve that the utility model first embodiment provides.
Fig. 2 is the concrete composition schematic diagram for the pressure management valve that the utility model first embodiment provides.
Fig. 3 is the working principle diagram of the first decompression pilot valve conducting in Fig. 1.
Fig. 4 is the working principle diagram of the second decompression pilot valve conducting in Fig. 1.
Icon: 1- pressure management valve;2- main valve;3- first depressurizes pilot valve;4- second depressurizes pilot valve;5- throttle valve;
6- time switch module;7- pressure difference switch;8- three-way magnetic valve;9- controls box;10- three-way ball valve;The first ball valve of 11-;12-
Two ball valves;13- third ball valve;14- pressure gauge;The 4th ball valve of 15-;16- filter.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be understood that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or
The utility model product using when the orientation or positional relationship usually put or those skilled in the art usually understand
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified sets
Standby or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, it is not understood to indicate or imply
Relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected;It can be mechanical connection, be also possible to be electrically connected;It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
First embodiment
Fig. 1 and Fig. 2 are please referred to, present embodiments provides a kind of pressure management valve 1, pressure management valve 1 includes main valve 2, the
One decompression pilot valve 3, second depressurizes pilot valve 4, time switch module 6 and throttle valve 5.
Main valve 2 has epicoele, valve ante-chamber and valve back cavity, and valve ante-chamber is connected to valve back cavity, and valve ante-chamber is for connecting water pump, valve
Back cavity is for connecting water supplying pipe.Epicoele and valve ante-chamber and valve back cavity completely cut off.
The input terminal of first decompression pilot valve 3 is connected to valve ante-chamber, and the output end and valve back cavity of the first decompression pilot valve 3 connect
It is logical.The conducting pressure of second decompression pilot valve 4 is greater than the conducting pressure of the first decompression pilot valve 3.Subtract specifically, can be first
The conducting pressure for pressing to pilot valve 3 is 4Bar, and the conducting pressure of the second decompression pilot valve 4 is 8Bar.Here conducting pressure refers to
Depressurize the pressure of pilot valve output end.That is, water from the first decompression pilot valve 3 flow out after hydraulic pressure value be 4Bar, water is from the
Hydraulic pressure value is 8Bar after two decompression pilot valves 4 flow out.
The input terminal of time switch module 6 is connected to valve ante-chamber, the output end of time switch module 6 and the second decompression guide
The input terminal of valve 4 is connected to, and the output end of the second decompression pilot valve 4 is connected to valve back cavity, and time switch module 6 is for periodically closing
Or conducting.
When time switch module 6 is closed, the water in epicoele flows in valve back cavity from the first decompression pilot valve 3, not from the
Two decompression pilot valves 4 flow through, to make the pressure value 4Bar of the water in valve back cavity.
When time switch module 6 is connected, the water in epicoele flows in valve back cavity from the second decompression pilot valve 4, not from the
One decompression pilot valve 3 flows through, to make the pressure value 8Bar of the water in valve back cavity.
One end of throttle valve 5 is connected to epicoele, and the other end of throttle valve 5 is connected to valve ante-chamber.
Time switch module 6 includes pressure difference switch 7, three-way magnetic valve 8 and control box 9, the input terminal and valve of pressure difference switch 7
Ante-chamber connection, the output end of pressure difference switch 7 are connected to the input terminal of the second decompression pilot valve 4, the control terminal of pressure difference switch 7 and three
The first end A1 of three-way electromagnetic valve 8 is connected to, and the second end B1 of three-way magnetic valve 8 is connected to valve ante-chamber, the third end of three-way magnetic valve 8
C1 is communicated with the atmosphere, and control box 9 is electrically connected with the control terminal of three-way magnetic valve 8, and control box 9 is for controlling three-way magnetic valve 8
The first end A1 that first end A1 was connected to or controlled three-way magnetic valve 8 with second end B1 is connected to third end C1.
Time switch module 6 further includes three-way ball valve 10, the first end A2 of three-way ball valve 10 and the first of three-way magnetic valve 8
A1 connection is held, the second end B2 of three-way ball valve 10 is connected to the control terminal of pressure difference switch 7, the third end C2 and valve of three-way ball valve 10
Ante-chamber connection.
Pressure management valve 1 further includes the first ball valve 11, the second ball valve 12 and third ball valve 13, and the first ball valve 11 is mounted on valve
The exit of ante-chamber closes the first ball valve 11, is capable of the connection of stop valve ante-chamber and pipeline.Second ball valve 12 is mounted on throttle valve
Between 5 and epicoele, the second ball valve 12 is closed, the connection of epicoele and pipeline can be cut off.Third ball valve 13 is mounted on valve back cavity
Inlet closes the second ball valve 12, is capable of the connection of stop valve back cavity and pipeline, simultaneously closes off the first ball valve 11, the second ball valve
12 and third ball valve 13, main valve 2 can be easily loaded and unloaded, main valve 2 is safeguarded.
Pressure management valve 1 further includes pressure gauge 14 and the 4th ball valve 15, and pressure gauge 14 is mounted on the inlet of valve back cavity.The
Four ball valves 15 are mounted on the inlet of pressure gauge 14.Pressure gauge 14 is used to detect the hydraulic pressure system of the inlet of valve back cavity.Close the
Four ball valves 15 are capable of the connection of cut-out pressure table 14 and pipeline, can easily load and unload pressure gauge 14, or carry out to pressure gauge 14
Maintenance.
Pressure management valve 1 further includes filter 16, and filter 16 is mounted on the exit of valve ante-chamber.Filter 16 was used for
The water flowed out from valve ante-chamber is filtered, plays the role of protecting subsequent parts.
Referring to Fig. 3, the hydraulic pressure of the valve back cavity of pressure management valve 1 is the situation of 4Bar: control box 9 controls three-way magnetic valve
8 first end A1 is connected to second end B1, and the first end A2 of three-way ball valve 10 is connected to second end B2.As shown by arrows in figure,
Water is flowed out from valve ante-chamber and epicoele, and the water flowed out from valve ante-chamber successively passes through the first ball valve 11, filter 16, three-way magnetic valve 8
Second end B1 and first end A1, three-way ball valve 10 first end A2 and second end B2, finally arrival pressure difference switch 7, make pressure difference
Switch 7 is closed.The water flowed out from epicoele successively passes through the second ball valve 12, flow controller, the first decompression pilot valve 3, third ball valve 13,
Valve back cavity is finally reached, the hydraulic pressure 4Bar of valve back cavity is made.
Referring to Fig. 4, the hydraulic pressure of the valve back cavity of pressure management valve 1 is the situation of 8Bar: control box 9 controls three-way magnetic valve
8 first end A1 is connected to third end C1, and the first end A2 of three-way ball valve 10 is connected to second end B2.As shown by arrows in figure,
Water in 7 top pipeline of pressure difference switch flows through the second end B2 of three-way ball valve 10 and the first end of first end A2, three-way magnetic valve 8
A1 and third end C1, is finally discharged into atmospheric environment, and pressure difference switch 7 is connected.Water is flowed out from valve ante-chamber and epicoele, and water is logical
The second decompression pilot valve 4 and third ball valve 13 are crossed, valve back cavity is finally reached, makes the hydraulic pressure 8Bar of valve back cavity.
For the situation of cell water, community user water consumption on daytime is higher, and the pressure of supply water needed is higher, uses water at night
To measure lower, the pressure of supply water needed is lower, so, control box 9 can be set and control conducting when daytime of pressure difference switch 7,
It is closed when at night.Specifically, can be set within 8 points to 20 points of period, control box 9 is believed to three-way magnetic valve 8
Number, the first end A1 and third end C1 of three-way magnetic valve 8 is connected, pressure difference switch 7 is connected, the second decompression pilot valve 4 is put into
Work, makes the hydraulic pressure 8Bar of valve back cavity.Within 20 points to 8 points of period, control box 9 gives 8 signal of three-way magnetic valve, makes three
The first end A1 and second end B1 of three-way electromagnetic valve 8 are connected, and close pressure difference switch 7, and the first decompression pilot valve 3 is devoted oneself to work, and make
The hydraulic pressure of valve back cavity is 4Bar.
The beneficial effect of pressure management valve 1 provided in this embodiment is:
The first decompression pilot valve 3, second decompression pilot valve 4 and time switch module 6 are provided in pressure management valve 1,
And the conducting pressure of the second decompression pilot valve 4 is greater than the conducting pressure of the first decompression pilot valve 3.In water demand
In the case that amount is high, pressure management valve 1 can enable the second decompression pilot valve 4, to increase the pressure of the outlet of main valve 2, guarantee small
The water demand of area user;In the case where water demand amount is low, pressure management valve 1 can enable the first decompression pilot valve 3, with
Reduce the pressure that main valve 2 exports, avoids pipe-line system leak.
Second embodiment
A kind of water supply pipline system is present embodiments provided, water supply pipline system water pump, water supplying pipe include first embodiment
The pressure management valve 1 of offer, water pump is connected to valve ante-chamber, and water supplying pipe is connected to valve back cavity.
Water supply pipline system provided in this embodiment can avoid user's water according to water consumption flexible setting pressure of supply water
For hydraulic pressure deficiency situation, system leak also can be avoided.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of pressure management valve, which is characterized in that the pressure management valve includes:
Main valve (2), the main valve (2) have epicoele, valve ante-chamber and valve back cavity, and the valve ante-chamber is connected to the valve back cavity, institute
It states epicoele and the valve ante-chamber and the valve back cavity completely cuts off;
The input terminal of first decompression pilot valve (3), first decompression pilot valve (3) is connected to the valve ante-chamber, and described first
The output end of decompression pilot valve (3) is connected to the valve back cavity;
Second decompression pilot valve (4), the conducting pressure of second decompression pilot valve (4) are greater than the first decompression pilot valve
(3) conducting pressure;
The input terminal of time switch module (6), the time switch module (6) is connected to the valve ante-chamber, the time switch
The output end of module (6) is connected to the input terminal of second decompression pilot valve (4), and described second depressurizes the defeated of pilot valve (4)
Outlet is connected to the valve back cavity, and the time switch module (6) is closed for timing or conducting;
One end of throttle valve (5), the throttle valve (5) is connected to the epicoele, the other end and the valve of the throttle valve (5)
Ante-chamber connection.
2. pressure management valve according to claim 1, which is characterized in that the time switch module (6) includes that pressure difference is opened
It closes (7), three-way magnetic valve (8) and control box (9), the input terminal of the pressure difference switch (7) to be connected to the valve ante-chamber, the pressure
The output end of difference switch (7) is connected to the input terminal of second decompression pilot valve (4), the control terminal of the pressure difference switch (7)
It is connected to the first end A1 of the three-way magnetic valve (8), the second end B1 and the valve ante-chamber of the three-way magnetic valve (8) connect
Logical, the third end C1 of the three-way magnetic valve (8) is communicated with the atmosphere, the control of control box (9) and the three-way magnetic valve (8)
End processed electrical connection, the first end A1 that control box (9) is used to control the three-way magnetic valve (8) be connected to second end B1 or
The first end A1 for controlling the three-way magnetic valve (8) is connected to third end C1.
3. pressure management valve according to claim 2, which is characterized in that the time switch module (6) further includes threeway
The first end A2 of ball valve (10), the three-way ball valve (10) is connected to the first end A1 of the three-way magnetic valve (8), the threeway
The second end B2 of ball valve (10) is connected to the control terminal of the pressure difference switch (7), the third end C2 of the three-way ball valve (10) with
The valve ante-chamber connection.
4. pressure management valve according to claim 1, which is characterized in that the pressure management valve further includes filter
(16), the filter (16) is mounted on the exit of the valve ante-chamber.
5. pressure management valve according to claim 1, which is characterized in that the pressure management valve further includes the first ball valve
(11), the second ball valve (12) and third ball valve (13), first ball valve (11) is mounted on the exit of the valve ante-chamber, described
Second ball valve (12) is mounted between the throttle valve (5) and the epicoele, after the third ball valve (13) is mounted on the valve
The inlet of chamber.
6. pressure management valve according to claim 1, which is characterized in that the pressure management valve further includes pressure gauge
(14), the pressure gauge (14) is mounted on the inlet of the valve back cavity.
7. pressure management valve according to claim 6, which is characterized in that the pressure management valve further includes the 4th ball valve
(15), the 4th ball valve (15) is mounted on the inlet of the pressure gauge (14).
8. pressure management valve according to claim 1, which is characterized in that the conducting pressure of first decompression pilot valve (3)
Power is 4Bar, and the conducting pressure of second decompression pilot valve (4) is 8Bar.
9. a kind of water supply pipline system, which is characterized in that the water supply pipline system includes that claim 1 to 8 is any described
Pressure management valve.
10. water supply pipline system according to claim 9, which is characterized in that the water supply pipline system further includes water pump
And water supplying pipe, the water pump are connected to the valve ante-chamber, the water supplying pipe is connected to the valve back cavity.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821013686.8U CN208381763U (en) | 2018-06-28 | 2018-06-28 | A kind of pressure management valve and water supply pipline system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821013686.8U CN208381763U (en) | 2018-06-28 | 2018-06-28 | A kind of pressure management valve and water supply pipline system |
Publications (1)
Publication Number | Publication Date |
---|---|
CN208381763U true CN208381763U (en) | 2019-01-15 |
Family
ID=64966036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201821013686.8U Active CN208381763U (en) | 2018-06-28 | 2018-06-28 | A kind of pressure management valve and water supply pipline system |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN208381763U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108561755A (en) * | 2018-06-28 | 2018-09-21 | 苏州艾尔泰流体控制有限公司 | A kind of pressure management valve and water supply pipline system |
-
2018
- 2018-06-28 CN CN201821013686.8U patent/CN208381763U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108561755A (en) * | 2018-06-28 | 2018-09-21 | 苏州艾尔泰流体控制有限公司 | A kind of pressure management valve and water supply pipline system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN208381763U (en) | A kind of pressure management valve and water supply pipline system | |
CN105201044A (en) | Novel totally-closed negative-pressure-preventing secondary water supplying system with suppressor | |
CN108561755A (en) | A kind of pressure management valve and water supply pipline system | |
CN203965584U (en) | A kind of entering water electromagnetic valve endurance testing device | |
CN203183801U (en) | Water purifier with intelligent water faucet | |
CN210766974U (en) | Direct pressure water supply equipment capable of preventing cavitation and damage of water pump impeller | |
CN209167905U (en) | Automatic control system for landscape circulating water body | |
CN207776002U (en) | Box type negative-pressure-free supercharging water supply system | |
CN203548156U (en) | Pressure stability self-control device of air compressor | |
CN201976599U (en) | Fish tank capable of automatically changing water | |
CN210766973U (en) | Forced locking anti-backflow device for multifunctional valve of water pump | |
CN203525688U (en) | Liquid level control device for water washing kettle | |
CN210395524U (en) | Pressure-stabilizing water supply device | |
CN107604974A (en) | A kind of non-negative pressure frequency-changing water supply device | |
CN203535019U (en) | Automatic controller for gas pipeline | |
CN110565734A (en) | Direct pressure water supply equipment capable of preventing cavitation and damage of water pump impeller | |
CN203965142U (en) | A kind of scouring electromagnetic valve endurance testing device | |
CN203131972U (en) | Pressure stabilizer | |
CN220603874U (en) | Control circuit for water purification system | |
CN216767666U (en) | Control loop for automatic start and stop of pneumatic hydraulic pump | |
CN210034515U (en) | Diaphragm valve for switching on/off waste water pipeline according to pipeline pressure change and water purification system | |
CN215295505U (en) | Constant-pressure fluid infusion control device | |
CN110565735A (en) | Variable pressure water supply equipment with high-level energy storage and intelligent sensing functions | |
CN205528070U (en) | External bluetooth wireless control's of display screen cupboard following formula purifier | |
CN220247079U (en) | Tap water high-low area pressure-superposed water supply equipment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |