CN104121408A - Fire-fighting pneumatic delayer - Google Patents
Fire-fighting pneumatic delayer Download PDFInfo
- Publication number
- CN104121408A CN104121408A CN201410314481.3A CN201410314481A CN104121408A CN 104121408 A CN104121408 A CN 104121408A CN 201410314481 A CN201410314481 A CN 201410314481A CN 104121408 A CN104121408 A CN 104121408A
- Authority
- CN
- China
- Prior art keywords
- valve
- communicated
- joint
- fire
- valve core
- 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
- F16K17/0486—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 mechanical actuating means
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/14—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
- F16K31/143—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves the fluid acting on a piston
Abstract
The invention provides a fire-fighting pneumatic delayer which comprises a valve body, an air inlet connector, an air outlet connector, a steel cylinder connector and a valve element assembly. The fire-fighting pneumatic delayer is characterized in that the valve element assembly comprises a large valve element, a connecting shaft, a small valve element and a spring, wherein the large valve element is provided with an axis through hole, a valve cavity in the valve body is divided by the large valve element into an upper valve cavity and a lower valve cavity, the upper valve cavity is communicated with the air inlet connector, and the lower valve cavity is communicated with the air outlet connector; the connecting shaft penetrates through the axis through hole; the small valve element abuts against the bottom end of the connecting shaft and can perform linear movement along the inner lateral face of the large valve element, a delay valve cavity communicated with the steel cylinder connector is arranged on the back side of the small valve element, and the steel cylinder connector is communicated with the upper valve cavity; the spring is connected to a spring fixing block in a sleeved mode, and the spring fixing block abuts against the top end of the connecting shaft and is in sealing contact with the top end of the large valve element. By means of the scheme, air smoothly flows in the valve cavities, induction to changes of the pressure in the valve cavities is flexible, and the fire-fighting pneumatic delayer is safe in use.
Description
Technical field
The present invention relates to a kind of Pneumatic time-delay device, in particular for a kind of fire-fighting Pneumatic time-delay device of gas piping in fire-fighting system, belong to " the F16K valve in International Patent Classification (IPC); Tap; Cock; Driving float; Ventilate or inflator " technical field.
Background technique
Extinction using gas is the class fire-fighting mode that current fire-fighting domain is the most conventional, for example CO2 extinguishing system, after the startup bottle group of suppression system is opened, make Carbon dioxide extinguishing agent storage bottle realize the needs that delayed startup spurts, be convenient to personnel in protective area and before agent application, carry out safe escape.The general regulation of 20～40 seconds that should meet suppression system engineering design specification retard time, in use, be conventionally set as 30 seconds, and in existing gas extinguishing system, conventionally relying on the electronic delay function on outfiring alarm controller, requirement is spurted in the time delay that realizes suppression system.But due to the defect of electrical apparatus element itself, for example do not use for a long time under situation or the reason such as installation environment humidity, can often cause time delay to be forbidden or Delay failure, once outfiring alarm controller breaks down, suppression system has just lost time delay spurts the safety guarantee of startup, brings danger to the disposing task such as safe escape of personnel in protective area.
In order to solve the problems of the technologies described above, Chinese patent 201210405989.5 discloses a kind of Pneumatic balance type and has started delayer, comprise valve seat and the inlet connector tube on valve seat is installed, outlet pipe connection, gas holder, in this valve seat, there is a valve pocket, in this valve pocket, mangetic core assembly is installed, this valve pocket is provided with uuper valve chamber and lower valve chamber, uuper valve chamber is communicated with inlet connector tube, lower valve chamber is communicated with outlet pipe connection, described mangetic core assembly comprises that one can promote for the float disc and of controlling uuper valve chamber and lower valve chamber connection the driven plunger that float disc moves in uuper valve chamber, this float disc is arranged at movably in uuper valve chamber and opens and closes to control uuper valve chamber and lower valve chamber, this float disc is set in driven plunger, on float disc, be connected with goring push spring, this driven plunger is through uuper valve chamber and lower valve chamber, and driven plunger is provided with air channel in, and in this, air channel one end is communicated with inlet connector tube, and the middle air channel the other end is communicated with gas holder, this Pneumatic balance type starts delayer and has effectively improved the stability postponing, safe and reliable, but this Pneumatic balance type starts in delayer by air channel in, inlet connector tube and gas holder are ganged up, the gas pressure of driven plunger end face is difficult for being greater than the precompression of goring push spring, can not be very sensitive by float disc jack-up, therefore its preferred version driven plunger is provided with a nozzle near the afterbody of gas holder, this nozzle is fixed in middle air channel tail end, this nozzle is provided with one for air channel and gas holder are communicated with and the fixing throttle orifice in aperture, but this scheme exists gas poor in valve pocket internal mobility, gas can not flow into gas holder smoothly.
Summary of the invention
In view of this, it is mobile smooth and easy in valve pocket that the object of the invention is to provide a kind of gas, and pressure sensitive is sensitive, uses a kind of fire-fighting Pneumatic time-delay device of safety.
For solving the problems of the technologies described above, technological scheme of the present invention is: a kind of fire-fighting Pneumatic time-delay device, comprises valve body, and be arranged on air input joint, air outlet adapter and cylinder joint on this valve body, in the valve pocket of described valve body, be provided with mangetic core assembly, wherein said mangetic core assembly comprises:
Big valve core, has an axis through-hole, and it is connected in the internal surface of described valve body, and described valve pocket is separated into upper and lower valve pocket, and described uuper valve chamber is communicated with described air input joint, and described lower valve chamber is communicated with described air outlet adapter;
Coupling shaft, through described axis through-hole;
Small valve core, is connected in the inner side surface of described big valve core, and offsets with the bottom of described coupling shaft, inner side surface along described big valve core can move linearly, the dorsal part of this small valve core is provided with time delay valve pocket, and this time delay valve pocket is communicated with described cylinder joint, and this cylinder joint is communicated with described uuper valve chamber;
Spring, is socketed on a spring fixed block, and the top of this spring fixed block and described coupling shaft offsets, and contacts with the end sealing of described big valve core.
Preferably, above-mentioned fire-fighting Pneumatic time-delay device, wherein said big valve core and described time delay valve pocket corresponding part offer an inclination valve port, this valve port is communicated with the transition passage being arranged in described valve body, this transition passage is obliquely installed, and be communicated with the skewed buffer cell being arranged in described valve body, this buffer cell is communicated in described cylinder joint.
Preferably, above-mentioned fire-fighting Pneumatic time-delay device, a side relative with described cylinder joint on wherein said valve body is also provided with safety valve, and this safety valve is communicated with described uuper valve chamber by a safety relief passage.
Preferably, above-mentioned fire-fighting Pneumatic time-delay device, wherein said air input joint inner chamber is provided with filter.
Preferably, above-mentioned fire-fighting Pneumatic time-delay device, wherein said big valve core and described valve interior surface joint, and described small valve core and described big valve core inner side surface joint are equipped with O-ring seals.
Preferably, above-mentioned fire-fighting Pneumatic time-delay device, wherein said small valve core one end is sealedly connected with one handle joint, and this handle joint one end extends to outside described valve body and is connected with a handwheel, has been sealedly connected with the round nut of fixation in the folder chamber of this handle joint and described big valve core.
Preferably, above-mentioned fire-fighting Pneumatic time-delay device, wherein said air input joint, air outlet adapter and described cylinder joint spatial position are mutually vertical between two.
Technique effect of the present invention is mainly reflected in: in the present invention by upper, lower valve chamber is direct and air input joint respectively, air outlet adapter is communicated with, time delay valve pocket is communicated with cylinder joint, preferably time delay valve pocket is communicated with a skewed buffer cell through a transition passage being obliquely installed, this buffer cell is communicated in cylinder joint, the good fluidity of gas in contrast and prior art the present invention in valve pocket, can be good at responding to the pressure change in each valve pocket, when original state spring fixed block gas suction pressure with under the effect of spring pre-pressing force, contact with big valve core sealing, on, lower valve chamber is not ganged up mutually, gas flows in the time-retention tank being connected with cylinder joint through uuper valve chamber, gas also flows into buffer cell and enters time delay valve pocket through transition passage simultaneously, along with the pressure in time-retention tank slowly rises, pressure in time delay valve pocket also rises, in the time being applied to pressure on small valve core end face in time delay valve pocket and being greater than above-mentioned suction pressure and spring pre-pressing force, gas push small valve core and then promotion coupling shaft, by spring fixed block jack-up, spring fixed block no longer contacts with big valve core sealing, on, lower valve chamber starts mutually to gang up, now gas flows into lower valve chamber through uuper valve chamber and then flows out through air outlet adapter.
Brief description of the drawings
Fig. 1: general assembly structural representation of the present invention;
Fig. 2: A-A longitudinal sectional view in Fig. 1;
Fig. 3: A-A transverse sectional view in Fig. 1.
In figure, the implication of each reference character is: 1-valve body, 2-air input joint, 3-air outlet adapter, 4-cylinder joint, 5-safety valve, 6-time-retention tank, 7-big valve core, 8-coupling shaft, 9-small valve core, 10-spring, 11-spring fixed block, 12-O shape seal ring, the large sealing gasket of 13-, 14-handle joint, 15-handwheel, 16-round nut, 17-buffer cell, 18-transition passage, 19-filter, 20-safety relief passage; M-uuper valve chamber, N-lower valve chamber, P-time delay valve pocket.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, so that technical solution of the present invention is easier to understand and grasp.
As shown in Figure 1, a kind of fire-fighting Pneumatic time-delay device, comprises valve body 1, and is arranged on air input joint 2, air outlet adapter 3 and cylinder joint 4 on valve body 1, air input joint 2, air outlet adapter 3 and cylinder joint 4 spatial position are mutually vertical between two, in the valve pocket of valve body 1, are provided with mangetic core assembly.
As shown in Figure 2, mangetic core assembly comprises: be connected in the big valve core 7 of valve body 1 internal surface, coupling shaft 8, is connected in the small valve core 9 of big valve core 7 inner side surfaces, spring 10, and for the spring fixed block of fixing spring 10.
Big valve core 7, has an axis through-hole, and coupling shaft 8 is through this axis through-hole, and the valve pocket in valve body 1 is separated into uuper valve chamber M and lower valve chamber N by big valve core 7, and uuper valve chamber M is communicated with air input joint 2, and lower valve chamber N is communicated with (as shown in Figure 3) with air outlet adapter 3;
Small valve core 9, be connected in the inner side surface of big valve core 7, and offset with the bottom of coupling shaft 8, inner side surface along big valve core 7 can move linearly under gas pressure effect, the dorsal part of small valve core 9 is provided with time delay valve pocket P, big valve core 7 offers an inclination valve port with time delay valve pocket P corresponding part, valve port is communicated with the transition passage 18 being arranged in valve body 1, transition passage 18 is obliquely installed, and be communicated with the skewed buffer cell 17 being arranged in valve body 1, buffer cell 17 is communicated in cylinder joint 4, cylinder joint 4 is also communicated with uuper valve chamber M simultaneously, buffer cell 17 reduced gas pressure intensity for gas before entering time delay valve pocket P, make gas mild enter time delay valve pocket P.
Spring 10, is socketed on spring fixed block 11, and spring fixed block 11 offsets with the top of coupling shaft 8, and contacts by large sealing gasket 13 sealings with the top of big valve core 7, and uuper valve chamber M and lower valve chamber N are not ganged up mutually.
In addition, a side relative with cylinder joint 4 on valve body 1 is also provided with safety valve 5, safety valve 5 is communicated with uuper valve chamber M by a safety relief passage 20, when it causes gas to flow out from air outlet adapter 3 for occurring to stop up when a certain position of this delayer, when pressure reaches a predetermined value in uuper valve chamber, automatically start safety valve 5 and carry out safety relief.
As shown in Figure 3, air input joint 2 inner chambers are provided with filter 19, for the solid impurity that the gas entering from air input joint 2 is contained, as iron rust, seal for pipe joints agent etc. filter, prevent from damaging seal element or stop up gas channel.
The above big valve core 7 and valve body 1 internal surface joint, and small valve core 9 is equipped with O-ring seals 12 with big valve core 7 inner side surface joints.
Small valve core 9 one end are sealedly connected with one handle joint 14, and these handle joint 14 one end extend to outside valve body 1 and are connected with a handwheel 15, have been sealedly connected with the round nut 16 of fixation in the folder chamber of handle joint 14 and big valve core 7.
When original state spring fixed block 11 gas suction pressure with under the effect of spring pre-pressing force, contact with big valve core 7 sealing, on, lower valve chamber (M, N) do not gang up mutually, gas flows in the time-retention tank 6 being connected with cylinder joint 4 through uuper valve chamber M, gas also flows into buffer cell 17 and enters time delay valve pocket P through transition passage 18 simultaneously, along with the pressure in time-retention tank 6 slowly rises, pressure in time delay valve pocket P also rises, in the time being applied to pressure on small valve core 9 end faces in time delay valve pocket P and being greater than above-mentioned suction pressure and spring pre-pressing force, gas push small valve core 9 and then promotion coupling shaft 8, by spring fixed block 11 jack-up, spring fixed block 11 no longer contacts with big valve core 7 sealings, on, lower valve chamber (M, N) start mutually to gang up, now gas flows into lower valve chamber N through uuper valve chamber M and then flows out through air outlet adapter 3.
Can find out that by above description the good fluidity of the gas in the present invention in valve pocket can be good at responding to the pressure change in each valve pocket.
Certainly, the above is the exemplary illustration of the present invention typical case application only, by the combination to same or similar technical characteristics and replacement, can form multiple concrete scheme, within these schemes all drop on protection scope of the present invention.
Claims (7)
1. a fire-fighting Pneumatic time-delay device, comprises valve body, and is arranged on air input joint, air outlet adapter and cylinder joint on this valve body, in the valve pocket of described valve body, is provided with mangetic core assembly, it is characterized in that, described mangetic core assembly comprises:
Big valve core, has an axis through-hole, and it is connected in the internal surface of described valve body, and described valve pocket is separated into upper and lower valve pocket, and described uuper valve chamber is communicated with described air input joint, and described lower valve chamber is communicated with described air outlet adapter;
Coupling shaft, through described axis through-hole;
Small valve core, is connected in the inner side surface of described big valve core, and offsets with the bottom of described coupling shaft, inner side surface along described big valve core can move linearly, the dorsal part of this small valve core is provided with time delay valve pocket, and this time delay valve pocket is communicated with described cylinder joint, and this cylinder joint is communicated with described uuper valve chamber;
Spring, is socketed on a spring fixed block, and the top of this spring fixed block and described coupling shaft offsets, and contacts with the end sealing of described big valve core.
2. fire-fighting Pneumatic time-delay device according to claim 1, it is characterized in that, described big valve core and described time delay valve pocket corresponding part offer an inclination valve port, this valve port is communicated with the transition passage being arranged in described valve body, this transition passage is obliquely installed, and be communicated with the skewed buffer cell being arranged in described valve body, this buffer cell is communicated in described cylinder joint.
3. fire-fighting Pneumatic time-delay device according to claim 1, is characterized in that, a side relative with described cylinder joint on described valve body is also provided with safety valve, and this safety valve is communicated with described uuper valve chamber by a safety relief passage.
4. fire-fighting Pneumatic time-delay device according to claim 1, is characterized in that, described air input joint inner chamber is provided with filter.
5. fire-fighting Pneumatic time-delay device according to claim 1, is characterized in that, described big valve core and described valve interior surface joint, and described small valve core and described big valve core inner side surface joint are equipped with O-ring seals.
6. fire-fighting Pneumatic time-delay device according to claim 1, it is characterized in that, described small valve core one end is sealedly connected with one handle joint, this handle joint one end extends to outside described valve body and is connected with a handwheel, has been sealedly connected with the round nut of fixation in the folder chamber of this handle joint and described big valve core.
7. fire-fighting Pneumatic time-delay device according to claim 1, is characterized in that, described air input joint, air outlet adapter and described cylinder joint spatial position are mutually vertical between two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410314481.3A CN104121408A (en) | 2014-06-27 | 2014-06-27 | Fire-fighting pneumatic delayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410314481.3A CN104121408A (en) | 2014-06-27 | 2014-06-27 | Fire-fighting pneumatic delayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104121408A true CN104121408A (en) | 2014-10-29 |
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ID=51766949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410314481.3A Pending CN104121408A (en) | 2014-06-27 | 2014-06-27 | Fire-fighting pneumatic delayer |
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| Country | Link |
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| CN (1) | CN104121408A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105920768A (en) * | 2016-04-08 | 2016-09-07 | 张中晓 | Preacting device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2280808Y (en) * | 1996-06-20 | 1998-05-06 | 方瑞丰 | Safety open-close valve for main gate of cylinder |
| EP1455125A1 (en) * | 2003-03-06 | 2004-09-08 | Eaton Corporation | Pressure relief valve with bidirectional damping |
| CN2731210Y (en) * | 2004-10-14 | 2005-10-05 | 中国石油天然气集团公司 | Pneumatic time-delay pressure controller |
| CN201992173U (en) * | 2010-11-25 | 2011-09-28 | 南京消防器材股份有限公司 | Pneumatic time-delay valve |
| CN202402762U (en) * | 2011-12-22 | 2012-08-29 | 天广消防股份有限公司 | Novel gas delay device |
| CN202868002U (en) * | 2012-10-19 | 2013-04-10 | 天广消防股份有限公司 | Pneumatic balance type start delayer |
| CN203571204U (en) * | 2013-12-02 | 2014-04-30 | 成都欣国立低温科技有限公司 | Pressure reducing valve |
| CN103836244A (en) * | 2014-03-05 | 2014-06-04 | 天广消防股份有限公司 | Mechanical delayer adopting external gas control |
-
2014
- 2014-06-27 CN CN201410314481.3A patent/CN104121408A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2280808Y (en) * | 1996-06-20 | 1998-05-06 | 方瑞丰 | Safety open-close valve for main gate of cylinder |
| EP1455125A1 (en) * | 2003-03-06 | 2004-09-08 | Eaton Corporation | Pressure relief valve with bidirectional damping |
| CN2731210Y (en) * | 2004-10-14 | 2005-10-05 | 中国石油天然气集团公司 | Pneumatic time-delay pressure controller |
| CN201992173U (en) * | 2010-11-25 | 2011-09-28 | 南京消防器材股份有限公司 | Pneumatic time-delay valve |
| CN202402762U (en) * | 2011-12-22 | 2012-08-29 | 天广消防股份有限公司 | Novel gas delay device |
| CN202868002U (en) * | 2012-10-19 | 2013-04-10 | 天广消防股份有限公司 | Pneumatic balance type start delayer |
| CN203571204U (en) * | 2013-12-02 | 2014-04-30 | 成都欣国立低温科技有限公司 | Pressure reducing valve |
| CN103836244A (en) * | 2014-03-05 | 2014-06-04 | 天广消防股份有限公司 | Mechanical delayer adopting external gas control |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105920768A (en) * | 2016-04-08 | 2016-09-07 | 张中晓 | Preacting device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141029 |