CN104728482A - Pressure regulating valve - Google Patents
Pressure regulating valve Download PDFInfo
- Publication number
- CN104728482A CN104728482A CN201310716103.3A CN201310716103A CN104728482A CN 104728482 A CN104728482 A CN 104728482A CN 201310716103 A CN201310716103 A CN 201310716103A CN 104728482 A CN104728482 A CN 104728482A
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- CN
- China
- Prior art keywords
- valve
- flap
- spring
- rod
- valve body
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Safety Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a pressure regulating valve comprising a valve body, a valve flap, a valve cover, a spring, a needle valve, an adjusting screw, a pilot valve, a regulating valve, a partitioning film, a valve rod and a valve seat. The upper portion of the valve body is provided with the valve cover, the partitioning film is arranged between the valve body and the valve cover, the pilot valve connects a valve cavity and a drainage cavity through a communication tube, a pressure gauge is arranged on the communication tube through the pilot valve and the drainage cavity, the regulating valve is connected to the position between the pressure gauge and the pilot valve for facilitating control, the needle valve connects the valve cavity and an incoming cavity of the valve body through a communication tube, and the pressure gauge is arranged on the communication tube between the needle valve and the incoming cavity. The pressure regulating valve has the advantages that structure is simple, installation and adjustment are facilitated, the tightness performance is fine, operation stability and reliability are high, and the pressure regulating valve has fine pressure regulating effect and low cost when being applied to a water supply system, a firefighting system and other industrial water supply systems.
Description
Technical field
The present invention relates to valve technology field, specifically a kind of decompression venting valve.
Background technique
Decompression venting valve a kind ofly inlet pressure is reduced to the outlet pressure of a certain needs by regulating and keeps stable valve, is mainly used in water system, fire-fighting system and other industrial water system.Existing decompression venting valve reduces pressure owing to mainly relying on the pressure of spring to carry out, voltage stabilizing, there is the defects such as resistance is large, Heavy Weight, outlet pressure are unstable.
Summary of the invention
The object of the present invention is to provide the decompression venting valve that a kind of adjust flux is large, structure is simple, working stability is reliable and cost is low.
The technical solution adopted for the present invention to solve the technical problems is: decompression venting valve is primarily of valve body, flap, valve gap, spring, needle value, adjusting screw rod, pilot valve, modulating valve, barrier film, valve rod and valve seat composition, valve body top is provided with valve gap, between valve body and valve gap, barrier film is housed, valve body, be connected by bolton between barrier film with valve gap, valve body and valve gap separate by barrier film, and form valve pocket between valve gap and barrier film, spring is equiped with in valve pocket, 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 from the top of valve gap 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, spring seat and barrier film are conflicted, described flap is arranged in valve body, also valve seat is provided with in valve body, valve seat can seal with the lower end in contact of flap, flap is limited by valve rod, valve rod is vertically arranged, positioning ring is fixed with at valve rod, more than positioning ring pass 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 do in valve seat, lower movement, valve body is separated into inflow chamber and exhaust chamber two-part by described valve seat, 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 are conflicted, valve rod extends in valve pocket through the upper end of flap through barrier film, spring seat is also arranged with on valve rod, and at the upper end nut of valve rod by spring seat, barrier film and flap are fixed together, and can by flap and spring seat pinch seal 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, body base is also provided with sewage draining exit and coordinates with pollution discharging plug.
Valve pocket is connected with the exhaust chamber of valve body by guiding tube by described pilot valve, and guiding tube between pilot valve and exhaust chamber is provided with pressure gauge, conveniently controls, between pressure gauge and pilot valve, is also connected with modulating valve; Valve pocket is connected with the inflow chamber of valve body by guiding tube by described needle value, and guiding tube between needle value and inflow chamber is provided with pressure gauge.During work, current enter valve pocket from inflow chamber through needle value, exhaust chamber is applied to pilot valve by guiding tube, when the setting value that the pressure of exhaust chamber adjusts 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 the setting value that the Pressure Drop of exhaust chamber adjusts to pilot valve, pilot valve is opened, current are discharged from valve pocket inflow and outflow chamber, water displacement due to pilot valve is greater than the inflow of needle value, the pressure drop in valve pocket, and the pressure of inflow chamber promotes flap and opens, at 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 stablized.
The invention has the beneficial effects as follows, the present invention has the advantages such as structure is simple, Installation and Debugging convenience, good seal performance, working stability are reliable, and the pressure-reduced and-regulated applied in water system, fire-fighting system and other industrial water system is effective, and cost is also low.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
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 accompanying drawing 1, decompression venting valve of the present invention is described in detail below below.
As shown in Figure 1, decompression venting valve of the present invention is primarily of 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, barrier film 19 is housed between valve body 1 and valve gap 4, valve body 1, be fastenedly connected by bolt 3 between barrier film 19 and valve gap 4, valve body 1 and valve gap 4 separate by barrier film 19, and form valve pocket 12 between valve gap 4 and barrier film 19, spring 5 is equiped with in valve pocket 12, spring plug 9 is equipped with on spring 5 top, spring seat 16 is equipped with in spring 5 bottom, adjusting screw rod 10 one end extends to from the top of valve gap 4 in valve pocket 12 and conflicts with spring plug 9, 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 and barrier film 19 are conflicted, described flap 2 is arranged in valve body 1, valve seat 24 is also provided with in valve body 1, 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 is vertically arranged, positioning ring 22 is fixed with at valve rod 20, positioning ring more than 22 passes flap 2 by valve rod 20, lower end and the positioning ring 22 of flap 2 are conflicted, the valve rod 20 of positioning ring less than 22 is sleeved in valve seat 24 from one end, and can do in valve seat 24, lower movement, valve body 1 is separated into inflow chamber 25 and exhaust chamber 21 two-part by described valve seat 24, 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 are conflicted, valve rod 20 extends in valve pocket 12 through the upper end of flap 2 through barrier film 19, spring seat 16 is also arranged with on valve rod 20, and in the upper end of valve rod 20 with nut 15 by spring seat 16, barrier film 19 and flap 2 are fixed together, and can by flap 2 and spring seat 16 pinch seal 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.
Valve pocket 12 is connected with the exhaust chamber 21 of valve body 1 by guiding tube 14 by described pilot valve 13, and guiding tube 14 between pilot valve 13 and exhaust chamber 21 is provided with pressure gauge 18, conveniently control, between pressure gauge 18 and pilot valve 13, be also connected with modulating valve 17; Valve pocket 12 is connected with the inflow chamber 25 of valve body 1 by guiding tube 6 by described needle value 8, and guiding tube 6 between needle value 8 and inflow chamber 25 is provided with pressure gauge 7.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 the setting value that the pressure of exhaust chamber 21 adjusts higher than pilot valve 13, pilot valve 13 is closed, pressure in valve pocket 12 raises, and flap 2 is with ovable valve stem 20 self-closed valve seat 24 by barrier film 19 under the pressure of valve pocket 12, and exhaust chamber 21 pressure no longer raises; When the setting value that the Pressure Drop of exhaust chamber 21 adjusts to pilot valve 13, pilot valve 13 is opened, current are discharged from valve pocket 12 inflow and outflow chamber 21, water displacement due to pilot valve 13 is greater than the inflow of needle value 8, the pressure drop in valve pocket 12, and the pressure of inflow chamber 25 promotes flap 2 and opens, at steady state, inflow in valve pocket 12 is identical with water displacement, and flap 2 open degree is constant, and the outlet pressure of exhaust chamber 21 is stablized.
Claims (5)
1. a decompression venting valve is primarily of valve body, flap, valve gap, spring, needle value, adjusting screw rod, pilot valve, modulating valve, barrier film, valve rod and valve seat composition, it is characterized in that, valve body top is provided with valve gap, between valve body and valve gap, barrier film is housed, valve body and valve gap separate by barrier film, and form valve pocket between valve gap and barrier film, spring is equiped with in valve pocket, 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, also valve seat is provided with in valve body, valve seat can seal with the lower end in contact of flap, flap is limited by valve rod, positioning ring is fixed with at valve rod, more than positioning ring pass 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, valve body is separated into inflow chamber and exhaust chamber two-part by described valve seat, valve pocket is connected with the exhaust chamber of valve body by guiding tube by described pilot valve, and guiding tube between pilot valve and exhaust chamber is provided with pressure gauge, also modulating valve is connected with between pressure gauge and pilot valve.
2. decompression venting valve according to claim 1, is characterized in that, valve pocket is connected with the inflow chamber of valve body by guiding tube by described needle value, and guiding tube between needle value and inflow chamber is provided with pressure gauge.
3. decompression venting valve according to claim 1, is characterized in that, valve rod extends in valve pocket through the upper end of flap through barrier film, and spring seat is also arranged with on valve rod, and spring seat, barrier film and flap is fixed together at the upper end nut 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 body base 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 in valve pocket from the top of valve gap 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 |
|---|---|---|---|
| CN201310716103.3A CN104728482A (en) | 2013-12-23 | 2013-12-23 | Pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310716103.3A CN104728482A (en) | 2013-12-23 | 2013-12-23 | Pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104728482A true CN104728482A (en) | 2015-06-24 |
Family
ID=53452670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310716103.3A Pending CN104728482A (en) | 2013-12-23 | 2013-12-23 | Pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104728482A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114672A (en) * | 2015-09-16 | 2015-12-02 | 乐清市兴丰电子厂 | Novel valve |
| CN106090364A (en) * | 2016-08-26 | 2016-11-09 | 上海康措流体控制有限公司 | Electro hydraulic valve, outlet pressure control system and inlet pressure control system |
| CN108799582A (en) * | 2018-08-30 | 2018-11-13 | 上海艾维科阀门股份有限公司 | Compound pressure reducing valve |
| CN114714548A (en) * | 2022-03-09 | 2022-07-08 | 广州流体密封科技有限公司 | Preparation method of wear-resistant and winding-resistant composite diaphragm for filling valve |
-
2013
- 2013-12-23 CN CN201310716103.3A patent/CN104728482A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114672A (en) * | 2015-09-16 | 2015-12-02 | 乐清市兴丰电子厂 | Novel valve |
| CN106090364A (en) * | 2016-08-26 | 2016-11-09 | 上海康措流体控制有限公司 | Electro hydraulic valve, outlet pressure control system and inlet pressure control system |
| CN106090364B (en) * | 2016-08-26 | 2021-08-10 | 上海康措流体控制有限公司 | Electro-hydraulic valve, outlet pressure control system and inlet pressure control system |
| CN108799582A (en) * | 2018-08-30 | 2018-11-13 | 上海艾维科阀门股份有限公司 | Compound pressure reducing valve |
| CN114714548A (en) * | 2022-03-09 | 2022-07-08 | 广州流体密封科技有限公司 | Preparation method of wear-resistant and winding-resistant composite diaphragm for filling valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150624 |
|
| WD01 | Invention patent application deemed withdrawn after publication |