CN202674437U - Multipurpose safety valve with water hammer eliminating function - Google Patents
Multipurpose safety valve with water hammer eliminating function Download PDFInfo
- Publication number
- CN202674437U CN202674437U CN 201220305579 CN201220305579U CN202674437U CN 202674437 U CN202674437 U CN 202674437U CN 201220305579 CN201220305579 CN 201220305579 CN 201220305579 U CN201220305579 U CN 201220305579U CN 202674437 U CN202674437 U CN 202674437U
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- Prior art keywords
- valve
- cylinder
- safety valve
- air chamber
- valve body
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Abstract
The utility model discloses a multipurpose safety valve with a water hammer eliminating function, which comprises a valve body, wherein the valve body is provided with an inlet and an outlet, the inside of the valve body is provided with a valve seat, and the front end of the valve seat is provided with a sealing element. The multipurpose safety valve with the water eliminating hammer function also comprises a cylinder, an upper cover of a gas chamber, a gas generator and a guide bar, wherein the cylinder is connected with the upper cover of the gas chamber; the upper cover of the gas chamber is connected with the valve body; the gas chamber is formed on the junction of the upper cover of the gas chamber and the valve body and is communicated with the cylinder; the gas generator is positioned on the top end of the cylinder; the rear end of the guide bar is positioned in the cylinder; the front end of the guide bar is positioned in the gas chamber; the front end of the guide bar is provided with a round metal platen; and the front end of the platen is provided with a hemispherical diaphragm. Compared with the traditional automatic safety valve, the novel valve disclosed by the utility model has the following advantages that the valve can be conveniently automatically controlled to be closed without adding a power driving device, the driving force is big, and the multipurpose safety valve can be reliably closed. The multipurpose safety valve disclosed by the utility model also has a function of eliminating a water hammer, the damage on a pipeline system by the ''water hammer effect'' generated when the valve is suddenly closed can be avoided, so that a water hammer eliminator does not need to be additionally arranged, the system size can be reduced, and a great quantity of raw materials can be saved.
Description
Technical field
The present invention relates to a kind of Multi-purpose safety valve with the water hammering that disappears.
Background technique
As everyone knows, fluid will leak when pipeline breaks down, if close when not anxious, can cause waste and accident, even also can cause serious personnel's injury and environmental disruption, and if fast automatic pipeline is closed of energy then can be avoided the generation of these things.Yet, want to realize automatic-closing valve, just need power (electric power, aerodynamic force etc.).Arrange that power plant can make that the automatic control system cost improves, complex structure (when driving power requires when large all the more so), also need frequent maintenance, reliability also can descend.If a valve that does not need the additional power device also can realize autoshutdown is arranged, just can address the above problem.Therefore, need a kind of like this automatic valve to solve these problems.
Summary of the invention
For above-mentioned prior art, the invention provides a kind of Multi-purpose safety valve with the water hammering that disappears.
The present invention is achieved by the following technical solutions:
A kind of Multi-purpose safety valve with the water hammering that disappears, comprise valve body, valve body is provided with entrance and exit, be provided with valve seat in the valve body, the valve seat front end is provided with Sealing, also comprises cylinder, air chamber loam cake, gas generator and guide rod, cylinder is connected with the air chamber loam cake, the air chamber loam cake is connected with valve body, and the joint forms a cavity---air chamber, and cylinder is communicated with air chamber; Gas generator is positioned at the cylinder top; The guide rod rear end is positioned at cylinder, and the guide rod front end is positioned at air chamber (guide rod can gentle indoor the moving up and down of cylinder), and the guide rod front end is provided with the circular metal pressing plate, and the pressing plate front end is provided with the hemisphere diaphragm.
Described gas generator comprises housing, the housing rear end is connected with cylinder by the gas generator cover plate, the housing front end is provided with Sealing (seal should be removed after being installed to cylinder), be provided with at least one medicine box (preferably one or two) in the housing, be provided with gas-forming agent in the medicine box, gas-forming agent is connected with lead-in wire by fuse, and lead-in wire passes from the housing rear end; The medicine box front end is provided with filter (effect of filter be filtering gas propellant ignited particle, dust of rear generation etc.).
Described fuse is made of heating bridge silk and ignition drug, and heating bridge silk is connected with lead-in wire, and ignition drug contacts with heating bridge silk.
Further, described cylinder sidewall is provided with pressure-limit valve.
Further, described cylinder sidewall is provided with gas source interface, and the gas source interface place is provided with bleeder screw and Sealing.
Preferably, described cylinder is connected with the air chamber loam cake by screw thread.
Preferably, described air chamber loam cake is connected with valve body by bolt.
Preferably, described gas generator cover plate is connected with cylinder by screw.
Working principle: during use, on fluid circuit, lead-in wire is connected with control circuit with valve installation of the present invention.When the generation emergency episode needs throttle down, control circuit adds trigger current to lead-in wire, thereby ignite fuse, and then by the fuse gas-forming agent that ignites, produce a large amount of gases, gas pours in air chamber promotion circular metal pressing plate by cylinder and the hemisphere diaphragm moves downward, thereby valve seat is blocked, and makes valve closing.After using, gas generator can change.Gas-forming agent can have two parts, ignites at twice, and air pressure minute two-stage is increased, and valve is closed suddenly.Guide rod plays directing effect, makes flexible hemisphere diaphragm by predetermined direction motion.The effect of circular metal pressing plate be increase pressure (because of its diameter more much larger than valve-seat diameter), guarantee that valve reliably closes, another effect is that diaphragm is extruded air chamber when preventing fluid evacuation.The effect of bleeder screw is when changing gas generator, and the gas in the cylinder is bled off.Voltage limiter plays the pressure limiting effect, and the air pressure that gas generator is produced is limited in the safety range of regulation.
Described gas-forming agent is existing product in the prior art, and is widely used in the air bag system of automobile, does not repeat them here.Voltage limiter is standardized element of the prior art.
Valve of the present invention and traditional automatic safe valve (electronic, pneumatic etc.) compare, have the following advantages: do not need the additional power drive unit just can easily realize automatically controlling throttle down, driving force is large, closes reliable.Valve of the present invention also has the effect (utilizing the large characteristics of gas contractibility) of eliminating water hammer, can prevent that " water hammer effect " of generation when valve is closed suddenly is to the destruction of pipe-line system, therefore do not need to arrange in addition again water-hammer arrester, so namely can the reduction system size can save a large amount of raw material again.Valve of the present invention also can be worked as pneumatic valve and be used (screw off bleeder screw connect source of the gas get final product), multi-purpose valve, and non-maintaining, simple and compact for structure, it is easy to realize, easy processing, cost is low.Gas generator is a separate part (similar bullet), and opening the gas generator cover plate gas generator assembly that more transducer set is new after circuit failure is got rid of can reuse.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of gas generator of the present invention.
Wherein, 1, screw; 2, gas generator cover plate; 3, Sealing; 4, cylinder; 5, bleeder screw; 6, gas source interface; 7, air chamber loam cake; 8, bolt; 9, entrance; 10, gas generator; 11, pressure-limit valve; 12, air chamber; 13, guide rod; 14, circular metal pressing plate; 15, hemisphere diaphragm; 16, valve seat; 17, valve body; 18, outlet; 19, lead-in wire; 20, housing; 21, filter; 22, heating bridge silk; 23, ignition drug; 24, gas-forming agent; 25, medicine box.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
A kind of Multi-purpose safety valve with the water hammering that disappears, comprise valve body 17, valve body 17 is provided with entrance 9 and outlet 18, is provided with valve seat 16 in the valve body 17, and valve seat 16 front ends are provided with Sealing 3, as shown in Figure 1, also comprise cylinder 4, air chamber loam cake 7, gas generator 10 and 13 bars that lead, cylinder 4 is connected with air chamber loam cake 7, and air chamber loam cake 7 is connected with valve body 17, the joint forms a cavity---air chamber 12, and cylinder 4 is communicated with air chamber 12; Gas generator 10 is positioned at cylinder 4 tops; Guide rod 13 rear ends are positioned at cylinder 4, and guide rod 13 front ends are positioned at air chamber 12 (guide rod 13 can move up and down at cylinder 4 and air chamber 12), and guide rod 13 front ends are provided with circular metal pressing plate 14, and circular metal pressing plate 14 front ends are provided with hemisphere diaphragm 15.
Described gas generator 10 comprises housing 20, as shown in Figure 2, housing 20 rear ends are connected with cylinder 4 by gas generator cover plate 2, housing 20 front ends are provided with Sealing 3, be provided with two medicine boxs 25 in the housing 20, be provided with gas-forming agent 24 in the medicine box 25, gas-forming agent 24 19 is connected with lead-in wire by fuse, goes between 19 to pass from housing 20 rear ends; The effect that medicine box 25 front ends are provided with filter 21(filter 21 is ignited particle, dust of rear generation etc. of filtering gas propellant 24).
Described fuse is made of heating bridge silk 22 and ignition drug 23, and heating bridge silk 22 is connected with lead-in wire 19, and ignition drug 23 contacts with heating bridge silk 22.
Described cylinder 4 sidewalls are provided with pressure-limit valve 11.
Described cylinder 4 sidewalls are provided with gas source interface 6, and gas source interface 6 places are provided with bleeder screw 5 and Sealing 3.
Described cylinder 4 is crossed screw thread and is connected with air chamber loam cake 7.
Described air chamber loam cake 7 is connected with valve body 17 by bolt 8.
Described gas generator cover plate 2 is connected with cylinder 4 by screw 1.
Working principle: during use, on fluid circuit, lead-in wire 19 is connected with control circuit with valve installation of the present invention.When the generation emergency episode needs throttle down, control circuit adds trigger current to lead-in wire 19, thereby ignite fuse, and then by the fuse gas-forming agent 24 that ignites, produce a large amount of gases, gas pours in air chamber 12 promotion circular metal pressing plates 14 by cylinder 4 and hemisphere diaphragm 15 moves downward, thereby valve seat 16 is blocked, and makes valve closing.After using, gas generator assembly 10 can change.Gas-forming agent can have two parts, ignites at twice, and air pressure minute two-stage is increased, and valve is closed suddenly.13 directing effects of guide rod make flexible hemisphere diaphragm 15 by predetermined direction motion.The effect of circular metal pressing plate 14 be increase pressure (because of its diameter more much larger than valve seat 16 diameters), guarantee that valve reliably closes, another effect is that hemisphere diaphragm 15 is extruded air chamber 12 when preventing fluid evacuation.The effect of bleeder screw 5 is when changing gas generator 10, and the gas in the cylinder 4 is bled off.Voltage limiter 11 plays the pressure limiting effect, and the air pressure that gas generator 10 is produced is limited in the safety range of regulation.
Claims (7)
1. Multi-purpose safety valve with the water hammering that disappears, comprise valve body, valve body is provided with entrance and exit, be provided with valve seat in the valve body, the valve seat front end is provided with Sealing, it is characterized in that: also comprise cylinder, air chamber loam cake, gas generator and guide rod, cylinder is connected with the air chamber loam cake, the air chamber loam cake is connected with valve body, and the joint forms a cavity---air chamber, and cylinder is communicated with air chamber; Gas generator is positioned at the cylinder top; The guide rod rear end is positioned at cylinder, and the guide rod front end is positioned at air chamber, and the guide rod front end is provided with the circular metal pressing plate, and the pressing plate front end is provided with the hemisphere diaphragm.
2. a kind of Multi-purpose safety valve with the water hammering that disappears according to claim 1, it is characterized in that: described gas generator comprises housing, the housing rear end is connected with cylinder by the gas generator cover plate, the housing front end is provided with Sealing, be provided with at least one medicine box in the housing, be provided with gas-forming agent in the medicine box, gas-forming agent is connected with lead-in wire by fuse, and lead-in wire passes from the housing rear end; The medicine box front end is provided with filter.
3. a kind of Multi-purpose safety valve with the water hammering that disappears according to claim 2 is characterized in that: described fuse is made of heating bridge silk and ignition drug, and heating bridge silk is connected with lead-in wire, and ignition drug contacts with the bridge silk that generates heat.
4. a kind of Multi-purpose safety valve with the water hammering that disappears according to claim 2, it is characterized in that: described medicine box has two.
5. a kind of Multi-purpose safety valve with the water hammering that disappears according to claim 1, it is characterized in that: described cylinder sidewall is provided with pressure-limit valve.
6. a kind of Multi-purpose safety valve with the water hammering that disappears according to claim 1, it is characterized in that: described cylinder sidewall is provided with gas source interface, and the gas source interface place is provided with bleeder screw and Sealing.
7. a kind of Multi-purpose safety valve with the water hammering that disappears according to claim 1, it is characterized in that: described gas generator cover plate is connected with cylinder by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305579 CN202674437U (en) | 2012-06-27 | 2012-06-27 | Multipurpose safety valve with water hammer eliminating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305579 CN202674437U (en) | 2012-06-27 | 2012-06-27 | Multipurpose safety valve with water hammer eliminating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202674437U true CN202674437U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220305579 Expired - Lifetime CN202674437U (en) | 2012-06-27 | 2012-06-27 | Multipurpose safety valve with water hammer eliminating function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202674437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720871A (en) * | 2012-06-27 | 2012-10-10 | 山东大学 | Multipurpose safety valve with function of eliminating water hammer |
-
2012
- 2012-06-27 CN CN 201220305579 patent/CN202674437U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720871A (en) * | 2012-06-27 | 2012-10-10 | 山东大学 | Multipurpose safety valve with function of eliminating water hammer |
| CN102720871B (en) * | 2012-06-27 | 2014-06-04 | 山东大学 | Multipurpose safety valve with function of eliminating water hammer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130116 Effective date of abandoning: 20140604 |
|
| RGAV | Abandon patent right to avoid regrant |