CN203743549U - Pressure reducing and stabilizing valve - Google Patents
Pressure reducing and stabilizing valve Download PDFInfo
- Publication number
- CN203743549U CN203743549U CN201320862808.1U CN201320862808U CN203743549U CN 203743549 U CN203743549 U CN 203743549U CN 201320862808 U CN201320862808 U CN 201320862808U CN 203743549 U CN203743549 U CN 203743549U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- valve body
- spring
- rod
- 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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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a pressure reducing and stabilizing valve. The valve is mainly composed of a valve body, a valve clack, a valve cover, a spring, a needle valve, an adjusting threaded rod, a pilot valve, an adjusting valve, a diaphragm, a valve rod and a valve seat. The valve cover is arranged on the upper portion of the valve body, the diaphragm is installed between the valve body and the valve cover, the pilot valve is used for connecting a valve cavity with an outflow cavity of the valve body through a communicated pipe, and a pressure gauge is arranged on the communicated pipe between the pilot valve and the outflow cavity. The adjusting valve is further connected between the pressure gauge and the pilot valve for control convenience, the needle valve is used for connecting the valve cavity and an inflow cavity of the valve body through a communicated pipe, and a pressure gauge is arranged on the communicated pipe between the needle valve and the inflow cavity. The pressure reducing and stabilizing valve has the advantages of being simple in structure, convenient to install and commission, good in seal performance, stable and reliable in working and the like and is good in pressure reducing and stabilizing effect and low in cost when applied to a water supplying system, a fire fighting system and other industrial water supply systems.
Description
Technical field
The utility model relates to valve technology field, specifically a kind of decompression venting valve.
Background technique
Decompression venting valve is a kind ofly by regulating, inlet pressure is reduced to the outlet pressure of a certain needs and keeps stable valve, is mainly used in water system, fire-fighting system and other industrial water supply system.Existing decompression venting valve is owing to being mainly that the pressure that relies on spring reduces pressure, voltage stabilizing, the defect such as have that resistance is large, Heavy Weight, outlet pressure are unstable.
Model utility content
The purpose of this utility model is to provide the decompression venting valve that a kind of adjust flux is large, simple in structure, working stability is reliable and cost is low.
The utility model solves the technological scheme that its technical problem adopts: decompression venting valve is mainly by valve body, flap, valve gap, spring, needle value, adjusting screw rod, pilot valve, modulating valve, barrier film, valve rod and valve seat form, valve body top is provided with valve gap, between valve body and valve gap, barrier film is housed, valve body, between barrier film and valve gap, by bolton, be connected, barrier film separates valve body and valve gap, and form valve pocket between valve gap and barrier film, in valve pocket, be equiped with spring, spring plug is equipped with on spring top, spring seat is equipped with in spring bottom, adjusting screw rod one end extends in valve pocket and conflicts with spring plug from the top of valve gap, adjusting screw rod and valve gap screw-thread fit, adjusting screw rod is protected by cap bag outside valve gap, cap bag and valve gap screw-thread fit, spring seat and barrier film are conflicted, described flap is arranged in valve body, in valve body, be also provided with valve seat, valve seat can seal with the lower end in contact of flap, flap is limited by valve rod, valve rod vertically arranges, at valve rod, be fixed with positioning ring, positioning ring is above passes flap by valve rod, the lower end of flap and positioning ring are conflicted, valve rod below positioning ring is sleeved in valve seat from one end, and can in valve seat, do, lower movement, described valve seat is separated into inflow chamber and exhaust chamber two-part by valve body, when the lower end of flap contacts with valve seat, inflow chamber and the exhaust chamber of valve body separate completely, sealing, flap is located in exhaust chamber, and the upper end of flap and barrier film conflict, valve rod passes the upper end of flap in barrier film extends to valve pocket, spring seat is also arranged with on valve rod, and in the upper end of valve rod with nut by spring seat, barrier film and flap are fixed together, and can clamp sealing by flap and spring seat when fastening nut, the entry end of the inflow chamber of described valve body is provided with suction flange, the outlet end of the exhaust chamber of valve body is provided with outlet(discharge) flange, valve body bottom is also provided with sewage draining exit and coordinates with pollution discharging plug.
Described pilot valve is connected valve pocket by guiding tube with the exhaust chamber of valve body, and is provided with pressure gauge on the guiding tube between pilot valve and exhaust chamber, for convenient, controls, and is also connected with modulating valve between pressure gauge and pilot valve; Described needle value is connected valve pocket by guiding tube with the inflow chamber of valve body, and is provided with pressure gauge on the guiding tube between needle value and inflow chamber.During work, current enter valve pocket from inflow chamber through needle value, exhaust chamber is applied to pilot valve by guiding tube, when setting value that the pressure of exhaust chamber is adjusted higher than pilot valve, pilot valve is closed, valve pocket internal pressure raises, and flap is by mode separation strapping ovable valve stem self-closed valve seat under the pressure of valve pocket, and exhaust chamber pressure no longer raises; When setting value that the Pressure Drop of exhaust chamber to pilot valve is adjusted, pilot valve is opened, current are discharged from valve pocket inflow and outflow chamber, because the water displacement of pilot valve is greater than the inflow of needle value, the pressure drop in valve pocket, the pressure of inflow chamber promotes flap and opens, under steady state, inflow in valve pocket is identical with water displacement, and flap open degree is constant, and the outlet pressure of exhaust chamber is stable.
The beneficial effects of the utility model are, the utlity model has the advantages such as simple in structure, Installation and Debugging convenience, good seal performance, working stability be reliable, the pressure-reduced and-regulated of applying in water system, fire-fighting system and other industrial water supply system is effective, and cost is also low.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
In figure, 1, valve body, 2, flap, 3, bolt, 4, valve gap, 5, spring, 6, guiding tube, 7, pressure gauge, 8, needle value, 9, spring plug, 10, adjusting screw rod, 11, cap bag, 12, valve pocket, 13, pilot valve, 14, guiding tube, 15, nut, 16, spring seat, 17, modulating valve, 18, pressure gauge, 19, barrier film, 20, valve rod, 21, exhaust chamber, 22, positioning ring, 23, pollution discharging plug, 24, valve seat, 25, inflow chamber, 101, suction flange, 102, sewage draining exit, 103, outlet(discharge) flange.
Embodiment
With regard to 1 pair of decompression venting valve of the present utility model of accompanying drawing, be described in detail below below.
As shown in Figure 1, decompression venting valve of the present utility model is mainly by valve body 1, flap 2, valve gap 4, spring 5, needle value 8, adjusting screw rod 10, pilot valve 13, modulating valve 17, barrier film 19, valve rod 20 and valve seat 24 form, valve body 1 top is provided with valve gap 4, between valve body 1 and valve gap 4, barrier film 19 is housed, valve body 1, between barrier film 19 and valve gap 4, by bolt 3, be fastenedly connected, barrier film 19 separates valve body 1 and valve gap 4, and form valve pocket 12 between valve gap 4 and barrier film 19, in valve pocket 12, be equiped with spring 5, spring plug 9 is equipped with on spring 5 tops, spring seat 16 is equipped with in spring 5 bottoms, adjusting screw rod 10 one end extend in valve pocket 12 and 9 conflicts of spring plug from the top of valve gap 4, adjusting screw rod 10 and valve gap 4 screw-thread fit, adjusting screw rod 10 is protected by cap bag 11 outside valve gap 4, cap bag 11 and valve gap 4 screw-thread fit, spring seat 16 is conflicted with barrier film 19, described flap 2 is arranged in valve body 1, in valve body 1, be also provided with valve seat 24, valve seat 24 can seal with the lower end in contact of flap 2, flap 2 is limited by valve rod 20, valve rod 20 vertically arranges, at valve rod 20, be fixed with positioning ring 22, positioning ring more than 22 passes flap 2 by valve rod 20, the lower end of flap 2 and positioning ring 22 are conflicted, the valve rod 20 of positioning ring below 22 is sleeved in valve seat 24 from one end, and can be on the interior work of valve seat 24, lower movement, described valve seat 24 is separated into inflow chamber 25 and exhaust chamber 21 two-part by valve body 1, when the lower end of flap 2 contacts with valve seat 24, inflow chamber 25 and the exhaust chamber 21 of valve body 1 separate completely, sealing, flap 2 is located in exhaust chamber 21, and the upper end of flap 2 and barrier film 19 conflicts, the upper end that valve rod 20 passes flap 2 is in barrier film 19 extends to valve pocket 12, spring seat 16 is also arranged with on valve rod 20, and use nut 15 by spring seat 16 in the upper end of valve rod 20, barrier film 19 and flap 2 are fixed together, and can clamp sealing by flap 2 and spring seat 16 when fastening nut 15, the entry end of the inflow chamber 25 of described valve body 1 is provided with suction flange 101, the outlet end of the exhaust chamber 21 of valve body 1 is provided with outlet(discharge) flange 103, the bottom of valve body 1 is also provided with sewage draining exit 102 and coordinates with pollution discharging plug 23.
Described pilot valve 13 is connected valve pocket 12 by guiding tube 14 with the exhaust chamber 21 of valve body 1, and be provided with pressure gauge 18 on the guiding tube 14 between pilot valve 13 and exhaust chamber 21, for convenient, control, between pressure gauge 18 and pilot valve 13, be also connected with modulating valve 17; Described needle value 8 is connected valve pocket 12 by guiding tube 6 with the inflow chamber 25 of valve body 1, and is provided with pressure gauge 7 on the guiding tube 6 between needle value 8 and inflow chamber 25.During work, current enter valve pocket 12 from inflow chamber 25 through needle value 8, exhaust chamber 21 is applied to pilot valve 13 by guiding tube 14, when setting value that the pressure of exhaust chamber 21 is adjusted higher than pilot valve 13, pilot valve 13 is closed, pressure in valve pocket 12 raises, and flap 2 is by barrier film 19 band ovable valve stem 20 self-closed valve seats 24 under the pressure of valve pocket 12, and exhaust chamber 21 pressure no longer raise; When setting value that the Pressure Drop of exhaust chamber 21 to pilot valve 13 is adjusted, pilot valve 13 is opened, current are discharged from valve pocket 12 inflow and outflow chambeies 21, because the water displacement of pilot valve 13 is greater than the inflow of needle value 8, the pressure drop in valve pocket 12, the pressure of inflow chamber 25 promotes flap 2 and opens, under steady state, inflow in valve pocket 12 is identical with water displacement, and flap 2 open degree are constant, and the outlet pressure of exhaust chamber 21 is stable.
Claims (5)
1. a decompression venting valve is mainly by valve body, flap, valve gap, spring, needle value, adjusting screw rod, pilot valve, modulating valve, barrier film, valve rod and valve seat form, it is characterized in that, valve body top is provided with valve gap, between valve body and valve gap, barrier film is housed, barrier film separates valve body and valve gap, and form valve pocket between valve gap and barrier film, in valve pocket, be equiped with spring, spring plug is equipped with on spring top, spring seat is equipped with in spring bottom, spring seat and barrier film are conflicted, described flap is arranged in valve body, in valve body, be also provided with valve seat, valve seat can seal with the lower end in contact of flap, flap is limited by valve rod, at valve rod, be fixed with positioning ring, positioning ring is above passes flap by valve rod, the lower end of flap and positioning ring are conflicted, valve rod below positioning ring is sleeved in valve seat from one end, described valve seat is separated into inflow chamber and exhaust chamber two-part by valve body, described pilot valve is connected valve pocket by guiding tube with the exhaust chamber of valve body, and be provided with pressure gauge on the guiding tube between pilot valve and exhaust chamber, between pressure gauge and pilot valve, be also connected with modulating valve.
2. decompression venting valve according to claim 1, is characterized in that, described needle value is connected valve pocket by guiding tube with the inflow chamber of valve body, and is provided with pressure gauge on the guiding tube between needle value and inflow chamber.
3. decompression venting valve according to claim 1, is characterized in that, valve rod passes the upper end of flap in barrier film extends to valve pocket, and spring seat is also arranged with on valve rod, and spring seat, barrier film and flap is fixed together with nut in the upper end of valve rod.
4. decompression venting valve according to claim 1, is characterized in that, the entry end of the inflow chamber of described valve body is provided with suction flange, and the outlet end of the exhaust chamber of valve body is provided with outlet(discharge) flange, and valve body bottom is also provided with sewage draining exit and coordinates with pollution discharging plug.
5. decompression venting valve according to claim 1, it is characterized in that, adjusting screw rod one end extends to from the top of valve gap in valve pocket and conflicts with spring plug, adjusting screw rod and valve gap screw-thread fit, adjusting screw rod is protected by cap bag outside valve gap, cap bag and valve gap screw-thread fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320862808.1U CN203743549U (en) | 2013-12-26 | 2013-12-26 | Pressure reducing and stabilizing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320862808.1U CN203743549U (en) | 2013-12-26 | 2013-12-26 | Pressure reducing and stabilizing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743549U true CN203743549U (en) | 2014-07-30 |
Family
ID=51343350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320862808.1U Expired - Fee Related CN203743549U (en) | 2013-12-26 | 2013-12-26 | Pressure reducing and stabilizing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906238A (en) * | 2017-11-13 | 2018-04-13 | 佛山市恒爱网络科技有限公司 | A kind of fully automatic pressure-stabilizing valve |
-
2013
- 2013-12-26 CN CN201320862808.1U patent/CN203743549U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906238A (en) * | 2017-11-13 | 2018-04-13 | 佛山市恒爱网络科技有限公司 | A kind of fully automatic pressure-stabilizing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20151226 |
|
| EXPY | Termination of patent right or utility model |