CN202409922U - Pneumatic time delay control device of gas fire extinguishing system - Google Patents
Pneumatic time delay control device of gas fire extinguishing system Download PDFInfo
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- CN202409922U CN202409922U CN2012200177031U CN201220017703U CN202409922U CN 202409922 U CN202409922 U CN 202409922U CN 2012200177031 U CN2012200177031 U CN 2012200177031U CN 201220017703 U CN201220017703 U CN 201220017703U CN 202409922 U CN202409922 U CN 202409922U
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- time delay
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Abstract
The utility model discloses a pneumatic time delay control device of a gas fire extinguishing system. The pneumatic time delay control device comprises a first driving gas cylinder, a second driving gas cylinder and a time delay control mechanism, wherein the time delay control mechanism comprises a multi-way joint, a needle valve, a release valve and a time delay tank, the air inlet end of the multi-way joint is communicated with the second driving gas cylinder, one air outlet end of the multi-way joint is communicated with the air inlet of the time delay tank through the needle valve, the other air outlet end of the multi-way joint is communicated with the air inlet of the release valve, the release valve is provided with a gas cylinder and a locking mechanism which are used for controlling opening and closing of the release valve, and the air outlet of the time delay tank is communicated with the air inlet of the gas cylinder. According to the time delay control device disclosed by the utility model, delay time is controlled by virtue of the needle valve, the release valve and the time delay tank, no electric power is consumed, time delay requirement of the gas fire extinguishing system in a particular situation can be met, and theoretically, the time delay control device disclosed by the utility model can be repeatedly used without restriction, thus being convenient for maintenance of the gas fire extinguishing system.
Description
Technical field
The utility model relates to a kind of gas extinguishing system, relates in particular to a kind of pneumatic overrun control of gas extinguishing system.
Background technology
Extinction using gas is present fire-fighting domain one type of fire-fighting mode the most commonly used.Usually firing-fighting medium comprises carbon dioxide, heptafluoro-propane, mist.And personal security and fire extinguishing effect in order to ensure the fire extinguishing zone; All require system to have in the design specification of all kinds of gas extinguishing systems and be not more than 30 seconds controlled time-delay application capability; At some specific area; After requiring to open selector valve earlier, through just opening the cylinder valve of extinguishing chemical holding bottle after the certain delay.Mistake spray or injection can damage personnel too early, spray and can incur loss through delay the best opportunity of fire extinguishing too late.
At present, time-delay control mode the most commonly used in the gas extinguishing system is an electronic delay, and electronic control system starts.Because the defective of electric elements itself, particularly fire system does not use for a long time, and reasons such as installation environment humidity often cause the inaccurate or time-delay inefficacy of time-delay, have influenced the operate as normal of system.
Can't use the occasion of electronic delay for cause electro-delay system dead electricity or some because of fire; Usually also adopt two driving gases placed apart; Open selector valve and extinguishing chemical bottle valve respectively, but delay time often can only rely on operating personnel's subjective judgement, more random during control.Therefore, all there is certain hidden danger, also greatly reduces the reliability of system for the fire extinguishing effect of gas extinguishing system and Field Force's life security.In addition, the cylinder valve of opening this driving gas cylinder need puncture seal membrane, thereby the mode that discharges driving gas is carried out out valve events, all need change seal membrane after each the completion, and is very inconvenient.
Summary of the invention
The utility model provides a kind of pneumatic overrun control of gas extinguishing system, relies on operating personnel's subjective judgement to solve existing fire extinguishing system time-delay control, has the problem of potential safety hazard.
A kind of pneumatic overrun control of gas extinguishing system; Comprise that first drives gas cylinder, the second driving gas cylinder and time-delay controlling organization; Described time-delay controlling organization comprises multiple-pass joint, needle valve, relief valve and time-delay jar; Multiple-pass joint inlet end and second drives gas cylinder and is communicated with, and one of them outlet side is communicated with through the air inlet of needle valve with the time-delay jar, and another outlet side is communicated with the air inlet of relief valve; The cylinder and the retaining mechanism of its switching of control are arranged on the described relief valve, and the gas outlet of described time-delay jar is communicated with the air inlet of cylinder.
Described multiple-pass joint is a four-way connection, and four-way connection is provided with the second low high envelope valve of letting out.
Comprise with first driving the control piper that gas cylinder is connected, control piper is provided with three-way connection, and three-way connection is provided with the first low high envelope valve of letting out.
Under the low leakage situation, gas can discharge through the low high envelope valve of letting out, and prevents that gas from gathering for a long time, and the pipeline internal pressure raises, and mistake is opened valve, causes serious consequence; During operate as normal, under the promotion of high voltage control gas, valve can be closed again immediately, can not cause the leakage of available gas, the security that has improved system.
The bottleneck that the described first driving gas cylinder and second drives gas cylinder is provided with cylinder valve.
Described relief valve comprises valve body and spool, the valve opening that air admission hole, venthole is arranged on the valve body and cooperate with spool; Described retaining mechanism comprise pressing plate that the cylinder body with cylinder is connected as a single entity, with the hinged pressure arm of pressing plate one end and with the hinged connecting rod in pressure arm middle part, the other end of pressure arm is near the piston of cylinder, the other end and the valve body of connecting rod are hinged; Described spool one end passes valve body, and the end and the pressing plate that pass valve body are close to.
The housing screw that is threaded with it is arranged on described pressing plate, and said housing screw and spool pass the outer end end of valve body to be close to, and can finely tune the thrust to spool through housing screw.
Comprise that holding first drives the casing that gas cylinder, second drives gas cylinder and time-delay controlling organization, casing is provided with shutter, and the doorframe edge is provided with travel switch.
Described needle valve comprises valve seat and the aciculiform spool that is threaded, and the screw of fixed spool is arranged on the valve seat, through regulating the gap length of aciculiform spool and valve seat, scalable delay time.
The utility model overrun control is through needle valve, relief valve and time-delay jar control delay time, without electric power, can satisfy under the specific use occasion the time-delay control needs of gas extinguishing system, can unrestrictedly reuse in theory, is convenient to the maintenance of system.
Description of drawings
Fig. 1 is the outside drawing of the utility model overrun control;
Fig. 2 is the structural representation of the utility model overrun control.
Fig. 3 is the structural representation of the utility model needle valve;
Fig. 4 is the structural representation of the utility model relief valve;
Fig. 5 is the A-A profile of relief valve shown in Figure 4.
The specific embodiment
As shown in Figure 1, a kind of pneumatic overrun control of gas extinguishing system comprises casing 1; On the casing 1 shutter is arranged, key 3, hammer 2 and lockhole 4 are arranged on the shutter, the doorframe edge is provided with travel switch 15; Suspension ring 16 and check valve 5 are arranged at casing 1 top, and check valve 5 is communicated with internal duct.
As shown in Figure 2, gas cylinder 6,7, relief valve 8, needle valve 9 and time-delay jars 10 arranged in the casing 1, wherein, gas cylinder and time-delay jars 10 are fixed on the box inside wall through pressing plate and screw.Cylinder valve 601 is arranged on the gas cylinder 6, and be connected with check valve 5, three-way connection 12 is arranged on the pipeline, the low high envelope valve 14 of letting out is arranged on the three-way connection through pipeline.Cylinder valve 701 is arranged on the gas cylinder 7, and it passes through four-way connection 11 and connects needle valves 9 and relief valves 8, has on the four-way connection 11 to hang down to let out the high valve 12 that seals, and needle valve 9 connects the air inlet of time-delay jar 10, and the gas outlet of time-delay jar 10 connects the air inlet 815 of cylinder 806.The gas outlet of relief valve 8 connects check valve 5 through pipeline.
As shown in Figure 3, check valve 9 comprises valve seat 901 and aciculiform spool 900, and aciculiform spool 900 is threaded with valve seat 901, the center have axially extending bore and with the vertical venthole 904 that crosses and be communicated with of axially extending bore; Between it and the valve seat 901 sealing ring 902 is arranged, the fixedly screw 903 of aciculiform spool 900 is arranged on the valve seat 901.Rotate aciculiform spool 900, can regulate the gap between aciculiform spool 900 and the valve seat 901.
Shown in Figure 4 and 5, relief valve 8 comprises valve body 801, spool 802, and the valve opening that air admission hole 804, venthole 805 is arranged on the valve body and match with spool 802, spool 802 rely on locking members 803 to be fixed in the valve opening, and locking member 803 and valve opening inwall are for being threaded.Spool 802 1 is rectified facing to air admission hole 805, and the other end runs through locking member 803 and stretches out outside the valve body 801.
Control the cylinder 806 and the retaining mechanism of its switching on the valve body 801 in addition, retaining mechanism comprises the pressing plate 810 that is connected as a single entity with cylinder 806, with pressing plate 810 1 ends through the hinged pressure arm 808 of bearing pin 813 and ends through bearing pin 812 and the hinged connecting rod 809 in pressure arm 808 middle parts.The piston 807 of cylinder 806 nestles up the other end of pressure arm 808, and the other end of connecting rod 809 is hinged through bearing pin 814 and valve body 801.There is housing screw 811 at pressing plate 810 middle parts, and housing screw 811 stretches out the outer end end of valve body with spool 802 and contacts.As shown in Figure 5, be with sealing ring 816 outside the piston 807, cylinder 806 has an air inlet 815.
In gas extinguishing system, gas cylinder 6 driving selection valves, gas cylinder 7 drives the extinguishing chemical cylinder valve, and promptly gas cylinder 6 connects selector valve, and gas cylinder 7 connects the extinguishing chemical cylinder valve.When needing to open fire extinguishing; At first open cylinder valve 601, let gas cylinder 6 inner high voltage gases open selector valve, then open cylinder valve 701; Gas at first passes through four-way connection 11; Be divided into two-way then, wherein one the tunnel in needle valve 9, time-delay jar 10 entering cylinders 806, and another road directly gets in the air admission hole 804 of relief valve 8.
Because the restriction of the housing screw 811 on the pressing plate 810, spool 802 can not move upward, and causes relief valve 8 to open; When the pressure in the time-delay jar 10 reaches certain value, piston 807 elongations of cylinder 806, pushing tow pressure arm 808 rotates around bearing pin 812; Thereby drivening rod 809 rotates with pressing plate 810 together; Housing screw 811 is no longer exerted pressure to spool 802, and relief valve 8 is opened, and drive of high-pressure gas extinguishing chemical cylinder valve is opened.Through regulating the gap between aciculiform spool 900 and the valve seat 901, can regulate delay time.
Above-mentioned time-delay mechanism relies on frame for movement to realize, can unrestrictedly reuse in theory, does not need driven by power in addition, can be in the requirement of the fire extinguishing system that satisfies special use occasion, and simple in structure, easy to operate.
Claims (8)
1. the pneumatic overrun control of a gas extinguishing system; Comprise that first drives gas cylinder, the second driving gas cylinder and time-delay controlling organization; It is characterized in that described time-delay controlling organization comprises multiple-pass joint, needle valve, relief valve and time-delay jar, multiple-pass joint inlet end and second drives gas cylinder and is communicated with; One of them outlet side is communicated with through the air inlet of needle valve with the time-delay jar; Another outlet side is communicated with the air inlet of relief valve, and the cylinder and the retaining mechanism of its switching of control arranged on the described relief valve, and the gas outlet of described time-delay jar is communicated with the air inlet of cylinder.
2. pneumatic overrun control according to claim 1 is characterized in that, described multiple-pass joint is a four-way connection, and four-way connection is provided with the second low high envelope valve of letting out.
3. the pneumatic overrun control of gas extinguishing system according to claim 1 is characterized in that, comprises with first driving the control piper that gas cylinder is connected, and control piper is provided with three-way connection, and three-way connection is provided with the first low high envelope valve of letting out.
4. pneumatic overrun control according to claim 1 is characterized in that, the bottleneck that the described first driving gas cylinder and second drives gas cylinder is provided with cylinder valve.
5. pneumatic overrun control according to claim 1 is characterized in that described relief valve comprises valve body and spool, the valve opening that air admission hole, venthole is arranged on the valve body and cooperate with spool; Described retaining mechanism comprise pressing plate that the cylinder body with cylinder is connected as a single entity, with the hinged pressure arm of pressing plate one end and with the hinged connecting rod in pressure arm middle part, the other end of pressure arm is near the piston of cylinder, the other end and the valve body of connecting rod are hinged; Described spool one end passes valve body, and the end and the pressing plate that pass valve body are close to.
6. pneumatic overrun control according to claim 5 is characterized in that, has the housing screw that is threaded with it, said housing screw and spool to pass the outer end end of valve body on the described pressing plate and is close to.
7. pneumatic overrun control according to claim 1 is characterized in that, comprises that holding first drives the casing that gas cylinder, second drives gas cylinder and time-delay controlling organization, and casing is provided with shutter, and the doorframe edge is provided with travel switch.
8. pneumatic overrun control according to claim 1 is characterized in that, described needle valve comprises valve seat and the aciculiform spool that is threaded, and the screw of fixed spool is arranged on the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200177031U CN202409922U (en) | 2012-01-16 | 2012-01-16 | Pneumatic time delay control device of gas fire extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200177031U CN202409922U (en) | 2012-01-16 | 2012-01-16 | Pneumatic time delay control device of gas fire extinguishing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202409922U true CN202409922U (en) | 2012-09-05 |
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ID=46734716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200177031U Expired - Fee Related CN202409922U (en) | 2012-01-16 | 2012-01-16 | Pneumatic time delay control device of gas fire extinguishing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202409922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117174A (en) * | 2014-06-27 | 2014-10-29 | 宁波市永航消防设备有限公司 | Remote control release station used in CO2 fire extinguishing system |
-
2012
- 2012-01-16 CN CN2012200177031U patent/CN202409922U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117174A (en) * | 2014-06-27 | 2014-10-29 | 宁波市永航消防设备有限公司 | Remote control release station used in CO2 fire extinguishing system |
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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: 20120905 Termination date: 20160116 |
|
| EXPY | Termination of patent right or utility model |