CN202432012U - Fast and anti-interference pilot valve - Google Patents
Fast and anti-interference pilot valve Download PDFInfo
- Publication number
- CN202432012U CN202432012U CN2011205461006U CN201120546100U CN202432012U CN 202432012 U CN202432012 U CN 202432012U CN 2011205461006 U CN2011205461006 U CN 2011205461006U CN 201120546100 U CN201120546100 U CN 201120546100U CN 202432012 U CN202432012 U CN 202432012U
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- China
- Prior art keywords
- valve
- pilot
- fast
- valve body
- outlet
- 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 - Lifetime
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Abstract
The utility model belongs to the technical field of valves and relates to a fast and anti-interference pilot valve. The fast and anti-interference pilot valve is characterized in that one end of an inlet pilot pipe is connected with an inlet pipeline of a valve body, and the other end of the inlet pilot pipe is connected with an upper cavity body pipeline above a diaphragm by a left-side reverse valve; and one end of an outlet pilot pipe is connected with an outlet pipeline of the valve body, and the other end of the outlet pilot pipe is connected with the upper cavity body pipeline by a needle-shaped adjusting valve and a right-side reverse valve which are mutually connected in series. The fast and anti-interference pilot valve has the beneficial effects that small flow guide holes on the diaphragm in the valve body are changed into controllable flow guide pipes outside the valve body, so that not only are the advantages of weak current and explosion protection of the traditional pilot valve inherited, but also the defects of slow closing speed of the valve, fluctuation of valve flaps, easy blocking of the small flow guide holes and nonadjustable opening speed and the like are overcome, the practicability and the reliability of the valve are greatly improved, the fluid can be rapidly cut off in emergency, the safety of rear-end equipment and places is guaranteed, the accidents of casualties or equipment explosion and the like are avoided. Therefore, the fast and anti-interference pilot valve is applicable to places with higher requirements for explosion protection and safety.
Description
Technical field
The utility model belongs to valve technology field, relates to combustion gas course of conveying Safety valves such as thermoelectricity, oil, chemical industry, boats and ships, metallurgy, pharmaceuticals industry, relates in particular to a kind of quick anti-interference pilot valve.
Background technique
Valve is the important accessory on the fluid line, and particularly in some security fields, valve not only plays a part the control fluid, the more important thing is to play and when urgency, cuts off fluid, the safety effect of avoiding accident to take place.
Pilot valve can open and close because the transmission resistance is little in the light current driving, is suitable for dangerous explosion-proof area and uses; Yet traditional pilot valve is on diaphragm, to open 1～2 water conservancy diversion aperture, and medium gets into epicoele through the water conservancy diversion aperture, and the drawback of this mode is: because the sectional area of water conservancy diversion aperture limited (diameter of aperture is relevant with the first conduit of outlet); So the closing velocity of valve is slower, under the situation of small flow state or low-pressure, the pressure rate of climb is slow in the epicoele; And the elastic force of the gravity of flap and spring makes flap sagging, causes flap to fluctuate up and down, and time closes when opening; Thresh open, closed action, the pressure medium that causes being transferred is unstable, produces concussion; Simultaneously the flap and the dynamic component that is associated are damaged easily, influence the sealing of closing of valve; Perforated area is a definite value on the diaphragm, so the opening speed of valve is to regulate, and under the situation of small flow or low-pressure; Flap is fluctuation up and down easily, and the pressure medium that causes being transferred is unstable, produces disturbance and concussion; Particularly the closing velocity of valve is slow, simultaneously because the sectional area of water conservancy diversion aperture is little, blocked easily; Cause defective valve, influence the reliability of valve, increased the maintenance workload of valve again.Traditional pilot valve causes many unfavorable factors of pilot valve because the water conservancy diversion setting exists certain narrow limitation, has influenced its use prospect.
Summary of the invention
The purpose of the utility model is for avoiding the existing technology pilot valve under the situation of small flow or low-pressure; The gas that is transferred produces the defective of disturbance and concussion; Flow guide structure to pilot valve improves, and the quick anti-interference pilot valve that a kind of valve closing speed is fast, reliability is high is provided.
For achieving the above object; The technological scheme of taking is: a kind of quick anti-interference pilot valve; Comprise valve body, valve gap, place diaphragm, spring between said valve body and the valve gap; And the flap that is positioned at said diaphragm below, it is characterized in that: first conduit one end that enters the mouth is connected with the inlet pipeline of said valve body, and the other end is connected through the upper cavity pipeline of left side selector valve with said diaphragm top; Export first conduit one end and be connected with the outlet conduit of said valve body, the other end is connected with said upper cavity pipeline through the right side selector valve.
First conduit one end of said outlet is connected with the outlet conduit of said valve body, and right side selector valve and the aciculiform modulating valve of the other end through contacting each other is connected with said upper cavity pipeline.
The beneficial effect of the utility model is: change water conservancy diversion aperture on the valve body interior diaphragm into valve body outer controllability honeycomb duct; On the outlet honeycomb duct, the aciculiform modulating valve is installed, is regulated the outlet guide and manage interior flow, to reach the opening speed of control pilot valve valve; Not only inherited the explosion-proof advantage of conventional pilot valves light current; And overcome that valve closing speed is slow, shortcoming such as flap fluctuation, water conservancy diversion aperture easy blocking, opening speed are non-adjustable, improved the practicability and the reliability of valve greatly, the utility model closing velocity is than the fast several times of conventional pilot valves; Can in case of emergency cut off fluid rapidly; Ensure rear end equipment and place safety, avoid accidents such as casualties or equipment explosion, be applicable to the demanding places of anti-explosion safety such as oil, petrochemical industry, medicine.
Description of drawings
Followingly the utility model is described further according to description of drawings and embodiment.
Fig. 1 is the utility model structural representation.
Among the figure, 1-left side selector valve; 2-right side selector valve; 3-aciculiform modulating valve; 4-flap; 5-diaphragm; 6-upper cavity; 7-spring; 8-valve gap; 9-export first conduit; 10-first conduit enters the mouth; The import of 11-valve body; 12-valve outlet; 13-valve body.
Embodiment
Fig. 1 is the utility model structural representation; Illustrate a kind of quick anti-interference pilot valve; Comprise valve body 13, valve gap 8, place diaphragm 5, spring 7 between said valve body 13 and the valve gap 8; And the flap 4 that is positioned at said diaphragm 5 belows, it is characterized in that: first conduit 10 1 ends that enter the mouth are connected with import 11 pipelines of said valve body 13, and the other end is connected with upper cavity 6 pipelines of said diaphragm 5 tops through left side selector valve 1; Export first conduit 9 one ends and be connected with outlet 12 pipelines of said valve body 13, the other end is connected with said upper cavity 6 pipelines through right side selector valve 2.
Further, first conduit 9 one ends of said outlet are connected with outlet 12 pipelines of said valve body 13, and the other end is connected with said upper cavity 6 pipelines through the right side selector valve 2 and aciculiform modulating valve 3 of polyphone connection each other.Manage the flow in 9, the opening speed of control pilot valve valve through regulating aciculiform modulating valve 3 adjusting outlet guides.
In valve body 13 and upper cavity 6, there is not MEDIA FLOW fashionable; The pressure that acts on diaphragm both direction about in the of 5 equates; This moment, valve leaned on the gravity of flap 4 and the elastic force of spring 7 to make flap 4 free sagging, was close on the valve outlet 12, and valve was in and closed off position this moment.
(1) valve opening: left side selector valve 1 cuts out, open right side selector valve 2, medium gets into valve body import 11.Because valve body import 11 pressure are higher than the pressure of upper cavity 6, diaphragm 5 and flap 4 be by jack-up, valve open;
(2) valve closing: open left side selector valve 1; Close right side selector valve 2; The part medium gets into upper cavity 6 through the first conduit 10 of inlet; Upper cavity 6 pressure are raise gradually, when upper cavity 6 pressure equate with valve body import 11 pressure, because effective compression area A2 (diaphragm+flap) of upper cavity 6 upper-end surfaces is greater than effective compression area A1 (diaphragm) of lower end surface.Then the pressure of diaphragm 5 upper-end surfaces is greater than the pressure of 5 times sections of diaphragm, and this moment, flap 4 was in lowest positions, and promptly flap 4 closely contacts with valve outlet 12, and valve is in closed condition;
(3) valve is opened once more: close left side selector valve 1, open right side selector valve 2, manage the flow in 9, the opening speed of control pilot valve valve through regulating aciculiform modulating valve 3 adjusting outlet guides.Medium enters valve outlet 12 through exporting first conduit 9 in the upper cavity 6.Because valve body import 11 pressure are higher than pressure in the upper cavity 6, diaphragm 5 and flap 4 are by jack-up, and valve is opened once more.
Claims (2)
1. quick anti-interference pilot valve; Comprise valve body, valve gap, place diaphragm, spring between said valve body and the valve gap; And the flap that is positioned at said diaphragm below; It is characterized in that: first conduit one end that enters the mouth is connected with the inlet pipeline of said valve body, and the other end is connected through the upper cavity pipeline of left side selector valve with said diaphragm top; Export first conduit one end and be connected with the outlet conduit of said valve body, the other end is connected with said upper cavity pipeline through the right side selector valve.
2. according to the said quick anti-interference pilot valve of claim 1, it is characterized in that: first conduit one end of said outlet is connected with the outlet conduit of said valve body, and right side selector valve and the aciculiform modulating valve of the other end through contacting each other is connected with said upper cavity pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205461006U CN202432012U (en) | 2011-12-23 | 2011-12-23 | Fast and anti-interference pilot valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205461006U CN202432012U (en) | 2011-12-23 | 2011-12-23 | Fast and anti-interference pilot valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202432012U true CN202432012U (en) | 2012-09-12 |
Family
ID=46781458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205461006U Expired - Lifetime CN202432012U (en) | 2011-12-23 | 2011-12-23 | Fast and anti-interference pilot valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202432012U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563117A (en) * | 2011-12-23 | 2012-07-11 | 上海诺特飞博燃烧设备有限公司 | Quick anti-interference pilot valve |
| CN109469764A (en) * | 2017-09-07 | 2019-03-15 | 纽珀有限公司 | Valve gear |
| US11892094B2 (en) | 2017-09-07 | 2024-02-06 | Neoperl Gmbh | Valve arrangement |
-
2011
- 2011-12-23 CN CN2011205461006U patent/CN202432012U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563117A (en) * | 2011-12-23 | 2012-07-11 | 上海诺特飞博燃烧设备有限公司 | Quick anti-interference pilot valve |
| CN109469764A (en) * | 2017-09-07 | 2019-03-15 | 纽珀有限公司 | Valve gear |
| US11287052B2 (en) | 2017-09-07 | 2022-03-29 | Neoperl Gmbh | Valve arrangement |
| US11892094B2 (en) | 2017-09-07 | 2024-02-06 | Neoperl Gmbh | Valve arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |