CN206246768U - A kind of diaphragm pressure reduction valve - Google Patents
A kind of diaphragm pressure reduction valve Download PDFInfo
- Publication number
- CN206246768U CN206246768U CN201621365148.6U CN201621365148U CN206246768U CN 206246768 U CN206246768 U CN 206246768U CN 201621365148 U CN201621365148 U CN 201621365148U CN 206246768 U CN206246768 U CN 206246768U
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- CN
- China
- Prior art keywords
- valve
- diaphragm
- sealing gland
- valve disc
- disc
- 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
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- Control Of Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of diaphragm pressure reduction valve, the top of the valve body is connected fastening with sealing gland by hex bolts and pad, and diaphragm is provided between sealing gland and valve body, so that the two is not connected mutually, the inner chamber that sealing gland is formed is control room, the top and the bottom of diaphragm are respectively equipped with top board and valve disc, the center of top board contacts with each other with the bottom of spring, spring is set in and is fixed on the copper sheathing on sealing gland top, the section of valve disc is in I-shaped, and the fixed valve rod in center of valve disc, valve rod is connected through diaphragm and with top board by nut, the bottom of valve disc is provided with lower platen of the area less than valve disc, the beneficial effects of the utility model are：Improve same system regional pressure height difference, traditional water rationing form can be replaced completely, engineering cost is greatly lowered, increases building utilization area, improves water-use efficiency, it is adaptable to industrial and mineral, fire-fighting and live in the system pipe networks such as, draining.
Description
Technical field
The utility model is related to a kind of pressure-reducing valve, specifically a kind of diaphragm pressure reduction valve.
Background technology
Diaphragm pressure reduction valve is a kind of industrial equipment.Very big improvement has been done on the basis of common pressure-reducing valve.Diaphragm is adopted
With new material, and work area is machined significantly, valve upstream pressure or the trickle change of downstream load can be accurate in time
True feeds back to main valve diaphragm to adjust the aperture of main valve, it is ensured that the stabilization of downstream pressure.Existing diaphragm pressure reduction valve regulation
Not enough facilitate, install cumbersome, still cannot replace traditional water rationing form, and production cost is higher.
Utility model content
The purpose of this utility model is to provide a kind of diaphragm pressure reduction valve, with asking for solving to propose in above-mentioned background technology
Topic.
To achieve the above object, the utility model provides following technical scheme：
A kind of diaphragm pressure reduction valve, including valve body, top board, spring, sealing gland, valve seat, lower platen, valve rod, valve disc,
Inlet pressure gauge, Inlet ball valve, needle-valve, pilot valve, vent ball valve and delivery gauge, the top of the valve body pass through hexagonal spiral shell
Bolt and pad are connected fastening with sealing gland, and diaphragm is provided between sealing gland and valve body so that the two is not connected mutually, sealing
The inner chamber that gland is formed is control room, and the top and the bottom of diaphragm are respectively equipped with top board and valve disc, the center of top board and bullet
The bottom of spring contacts with each other, and spring is set in and is fixed on the copper sheathing on sealing gland top, and the section of valve disc is in I-shaped, and
The fixed valve rod in center of valve disc, valve rod is connected through diaphragm and with top board by nut, and it is small that the bottom of valve disc is provided with area
In the lower platen of valve disc, lower platen is fixed on the bottom of valve rod by nut, and lower platen is put with valve seat and cooperated with it；Institute
State and hole is offered on the entrance cavity and outlet plenum side wall of valve body, wherein the hole on the wall of entrance cavity side passes through pipeline and needle-valve and control
Room connection processed, is additionally provided with inlet pressure gauge and Inlet ball valve on the pipeline at entrance cavity, the hole on the wall of outlet plenum side passes through pipeline
Connected with pilot valve with control room, vent ball valve and delivery gauge are additionally provided with the pipeline at outlet plenum.
As further program of the utility model：The center of the sealing gland is provided with suspension ring.
As the utility model further scheme：The bottom of the valve disc is installed with a circle rubber cushion.
As the utility model further scheme：The paste outside of the valve body has nameplate.
Compared with prior art, the beneficial effects of the utility model are：With pressure difference confrontation control of surging, sealing property is not
Disturbed by hydraulic pressure, open and close stable action, speed is adjustable, without water hammer, while small volume, without installation position limitation；And make
With long lifespan, same system regional pressure height difference is improved, traditional water rationing form can be replaced completely, with
Engineering cost is greatly lowered, increases building utilization area, improves water-use efficiency, it is adaptable to industrial and mineral, fire-fighting and live to,
In the system pipe networks such as draining.
Brief description of the drawings
Fig. 1 is a kind of structural representation of diaphragm pressure reduction valve.
In figure：1- valve bodies, 2- rubber cushions, 3- hex bolts, 4- diaphragms, 5- top boards, 6- nuts, 7- springs, 8- sealing pressures
Lid, 9- suspension ring, 10- copper sheathings, 11- valve seats, 12- lower platens, 13- valve rods, 14- nameplates, 15- valve discs, 16- pads, 17- entrance pressures
Power table, 18- Inlet ball valves, 19- needle-valves, 20- pilot valves, 21- vent ball valves, 22- delivery gauges.
Specific embodiment
The technical scheme of this patent is described in more detail with reference to specific embodiment.
Refer to Fig. 1, a kind of diaphragm pressure reduction valve, including valve body 1, top board 5, spring 7, sealing gland 8, valve seat 11,
Lower platen 12, valve rod 13, valve disc 15, inlet pressure gauge 17, Inlet ball valve 18, needle-valve 19, pilot valve 20, vent ball valve 21 and go out
Mouth pressure gauge 22, the top of the valve body 1 is connected fastening, and sealing gland with sealing gland 8 by hex bolts 3 and pad 16
Diaphragm 4 is provided between 8 and valve body 1 so that the two is not connected mutually, sealing gland 8 formed inner chamber be control room, diaphragm 4 it is upper
Lower part is respectively equipped with top board 5 and valve disc 15, and center and the bottom of spring 7 of top board 5 contact with each other, and spring 7 is arranged
Be fixed on the copper sheathing 10 on the top of sealing gland 8, top board 5 and being synchronized with the movement for diaphragm 7 compensated, valve disc 15 cut
Face is in I-shaped, and valve disc 15 the fixed valve rod 13 in center, valve rod 13 by nut 6 with top board 5 through diaphragm 7 and being connected
Connect, valve disc 15 can be driven to move up and down in the presence of diaphragm 7, the bottom of valve disc 15 is provided with lower platen of the area less than valve disc 15
12, lower platen 12 is fixed on the bottom of valve rod 13 by nut 6, and lower platen 12 is put with valve seat 11 and cooperated with it, realizes
To the entrance cavity of valve body 1 and connecting and closing for outlet plenum；Offered on the entrance cavity and outlet plenum side wall of the valve body 1
Hole on hole, wherein entrance cavity side wall is connected by pipeline and needle-valve 19 with control room, and the water of porch is incorporated into control by realization
System is indoor, inlet pressure gauge 17 and Inlet ball valve 18 is additionally provided with the pipeline at entrance cavity, for entering to the hydraulic pressure in entrance cavity
Row detection, the hole on the wall of outlet plenum side is connected by pipeline and pilot valve 20 with control room, and be incorporated into for the water in exit by realization
In control room, vent ball valve 21 and delivery gauge 22 are additionally provided with the pipeline at outlet plenum, realize the inspection to exit hydraulic pressure
Survey.
The center of the sealing gland 8 is provided with suspension ring 9, the convenient lifting overall to pressure-reducing valve.
The bottom of the valve disc 15 is installed with a circle rubber cushion 2, realizes the sealing between valve disc 15 and valve seat 11.
The paste outside of the valve body 1 has nameplate 14.
Operation principle of the present utility model is：When 20 standard-sized sheet of pilot valve, the water energy in entrance cavity is flowed into by control room
To in outlet plenum, atmospheric pressure state is in valve body 1, now the water top valve opening disk 15 and lower platen 12 of entrance cavity, flow to outlet plenum,
Now, valve body 1 is supply condition；To pilot valve 20 it is fully closed when, the water in entrance cavity is entered into control room, and water is resident and is formed
Equal to extruding top board 5 after upstream pressure so that diaphragm 4 is deformed, now valve rod 13 drive valve disc 15 and lower platen 12 to
Lower motion, realizes the closing of valve body 1；And when working as the open degree of pilot valve 20 (variable) and the flow of needle-valve 19 (quantitative) with value, valve disc
15 can automatically control its position to adapt to two-way pressure equilibrium condition, and now, valve body is in adjustment state, is in summary described, every
Membrane type pressure-reducing valve can be power using upstream and downstream pressure differential, diaphragm 4 is moved up and down in purpose condition (when such as with ovable valve stem 13
Between, pressure value, height of water level etc.) make and pilot valve congeniality (close, regulation, open) action, to be satisfied with modern project
Decompression, voltage stabilizing, pressure release in fluid delivery system, hold pressure, determine water level, constant flow etc. requirement.
The better embodiment to this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, in the ken that one skilled in the relevant art possesses, can also be on the premise of this patent objective not be departed from
Make a variety of changes.
Claims (4)
1. a kind of diaphragm pressure reduction valve, including valve body, top board, spring, sealing gland, valve seat, lower platen, valve rod, valve disc, enter
Mouth pressure gauge, Inlet ball valve, needle-valve, pilot valve, vent ball valve and delivery gauge, it is characterised in that the top of the valve body
Fastening is connected with sealing gland by hex bolts and pad, and diaphragm is provided between sealing gland and valve body so that the two is mutual
Do not connect, the inner chamber that sealing gland is formed is control room, the top and the bottom of diaphragm are respectively equipped with top board and valve disc, top board
Center contacts with each other with the bottom of spring, and spring is set in and is fixed on the copper sheathing on sealing gland top, and the section of valve disc is in
I-shaped, and valve disc the fixed valve rod in center, valve rod through diaphragm and with top board by nut connect, the bottom of valve disc
Be provided with lower platen of the area less than valve disc, lower platen is fixed on the bottom of valve rod by nut, lower platen put with valve seat and and its
Cooperate；Hole is offered on the entrance cavity and outlet plenum side wall of the valve body, wherein the hole on the wall of entrance cavity side is by pipe
Road and needle-valve are connected with control room, inlet pressure gauge and Inlet ball valve are additionally provided with the pipeline at entrance cavity, on the wall of outlet plenum side
Hole connected with control room by pipeline and pilot valve, vent ball valve and delivery gauge are additionally provided with the pipeline at outlet plenum.
2. a kind of diaphragm pressure reduction valve according to claim 1, it is characterised in that install the center of the sealing gland
There are suspension ring.
3. a kind of diaphragm pressure reduction valve according to claim 1, it is characterised in that the bottom of the valve disc is installed with a circle
Rubber cushion.
4. a kind of diaphragm pressure reduction valve according to claim 1, it is characterised in that the paste outside of the valve body has inscription
Board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621365148.6U CN206246768U (en) | 2016-12-13 | 2016-12-13 | A kind of diaphragm pressure reduction valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621365148.6U CN206246768U (en) | 2016-12-13 | 2016-12-13 | A kind of diaphragm pressure reduction valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206246768U true CN206246768U (en) | 2017-06-13 |
Family
ID=59006759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621365148.6U Expired - Fee Related CN206246768U (en) | 2016-12-13 | 2016-12-13 | A kind of diaphragm pressure reduction valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206246768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067881A (en) * | 2019-05-28 | 2019-07-30 | 宁波世纪恒祥自控技术有限公司 | A kind of double pilot pressures are from force regulating valve |
-
2016
- 2016-12-13 CN CN201621365148.6U patent/CN206246768U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067881A (en) * | 2019-05-28 | 2019-07-30 | 宁波世纪恒祥自控技术有限公司 | A kind of double pilot pressures are from force regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170613 Termination date: 20201213 |