CN105344055B - On-line measuring device and detection method for gas extinguishing system - Google Patents
On-line measuring device and detection method for gas extinguishing system Download PDFInfo
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- CN105344055B CN105344055B CN201510903982.XA CN201510903982A CN105344055B CN 105344055 B CN105344055 B CN 105344055B CN 201510903982 A CN201510903982 A CN 201510903982A CN 105344055 B CN105344055 B CN 105344055B
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- signal
- valve
- driving device
- disengaging gear
- valve body
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/50—Testing or indicating devices for determining the state of readiness of the equipment
Abstract
The invention discloses the on-line measuring devices for gas extinguishing system, including：Storage bottle, the first sender unit, the first disengaging gear, second signal emitter, the second disengaging gear, the first signal feedback device, second signal feedback device and signal receiving device.Also disclose detection method, including step：1）Open the first disengaging gear and the second disengaging gear；2）Open selector valve, driving device and storage bottle；3）First signal feedback device monitors that the keying of selector valve, the first sender unit monitor the action of driving device；4）Open driving device and pilot valve；5）Second signal feedback device monitors pressure in primer liner；6）Signal receiving device receives signal；7）In primer liner after medicament release, driving device, pilot valve reset, and close the first disengaging gear and the second disengaging gear.The configuration of the present invention is simple, install convenient can the fast and effective Reliability of Microprocessor of detection part and the leakproofness of primer liner.
Description
Technical field
The invention belongs to gas fire extinguisher fields, more particularly, to a kind of on-line measuring device for gas extinguishing system
And detection method.
Background technology
GB50263-2007《Code for installation and acceptance of gas fire extinguishing systems》Middle 5.4.6 items regulation be " pneumatic actuating device
Air pressure leak test should be done after Pipe installing, and qualified ".But in Specific construction, due to pneumatic actuation pipeline directly with choosing
The connections such as valve, pilot valve, gas control check valve are selected, pneumatic actuation pipeline is in running order after installation is complete, can not implement gas
Leak test is pressed, if reinstalled again after carrying out air pressure leak test using pipeline pre-connection, just loses tightness
The meaning of experiment.
Simultaneously because spring parts are directed in the devices such as electromagnet, pilot valve, selector valve, and spring is located for a long time
Will produce under pressure state stress failures, it is stuck phenomena such as, influence the normal operation of fire extinguishing system.In gas extinguishing system
In maintenance process, also lacks effective method and the whether smooth operation of a complete set of equipment such as electromagnet, pilot valve, selector valve is examined
It surveys.Tradition is then log out electromagnet, rewiring carries out to needing to dismantle in the conducting wire of electromagnet when the motion detection of electromagnet
Detection.When detecting the action of pilot valve, needing one by one to dismantle pilot valve, whole process is troublesome, and the dismounting of primer liner,
Secondary installing is unfavorable for the sealing of primer liner, and there are some potential safety problemss, and also lack to selector valve in tradition inspection
Or even the reliability of whole system running is comprehensively checked.
Invention content
For overcome the deficiencies in the prior art, the present invention one kind is provided can be under the premise of not dismounting on-line measuring device
Detect and select the Reliability of Microprocessor of valve, pilot valve and starter and the air-tightness of primer liner for gas extinguishing system
On-line measuring device.
The technical solution adopted by the present invention to solve the technical problems is：A kind of on-line checking for gas extinguishing system
Device, set on being completed on the gas extinguishing system of installation, the on-line measuring device includes：
Storage bottle, for storing medicament needed for on-line checking；
First sender unit for monitoring driving device action state and emits signal；
First disengaging gear is set between active bottle and driving device, is kept at active bottle when for carrying out on-line checking
In closed state；
Second signal emitter, action state for monitoring pilot valve simultaneously emit signal；
Second disengaging gear is set between flask for medicinal preparations and pilot valve, keeps flask for medicinal preparations to be in when for carrying out on-line checking
Closed state；
First signal feedback device, the open/close states for monitoring selector valve；
Second signal feedback device, for monitoring the pressure in primer liner；
Signal receiving device, it is anti-for receiving first sender unit, second signal emitter, the first signal
The signal that feedback device and second signal feedback device are sent out.Second disengaging gear may be implemented in the case where not rotating pilot valve
Make to keep safe distance between the cutter head of pilot valve and the diaphragm of bottle valve, avoid caused by rotating pilot valve to primer liner
The influence of leakproofness.
Further, first disengaging gear include valve body, can be described in the valve rod and position-limit mechanism that are moved in valve body
Valve body is connected by connector with active bottle, and the valve stem seal is connected in valve body, and valve stem end is equipped with trigger member；On valve body
Equipped with locking piece, which coordinates with position-limit mechanism, connector so that and valve rod has the first working position and the second working position,
When in the first working position, the connector is at least partially disposed above locking piece, and the driving device can drive downwards tactile
Outbox passes through connector triggering to be set to the sealing element in active bottle to open active bottle；When in the second working position, even
Fitting is at least partially disposed between locking piece and valve body, and safe distance is kept between the trigger member and sealing element.It is not dismounting
Driving device and the Reliability of Microprocessor that driving device can be detected under the premise of not starting active bottle.
Further, the position-limit mechanism includes being set to the locating part in valve body, being set on valve rod and locating part cooperation
Positioning region and the return unit that is sheathed on valve rod, the positioning region be tightly connected with valve interior wall, described return unit one end with
Positioning region offsets, and the other end is butted on connector.
Further, it is equipped with stopper positioned at the top of positioning region on the valve rod, which makes valve interior wall and valve rod
Between form cavity；The valve body is equipped with the channel for entering for driving gas, which is connected to the cavity.It realizes
Utilize the function of driving gas starting active bottle so that the first disengaging gear has electric control starting and pneumatic starts two kinds of unlatchings
Mode improves the startup security reliability of system.
Further, the driving device is electromagnetic actuator device.
Further, the storage bottle is equipped with delay driving device, and when starter fails to open active bottle, this prolongs
When driving device for starting storage bottle.It realizes double startup source, increases the startup security reliability of system.
Further, the second signal emitter is equipped with number.Second signal emitter is numbered can
The Reliability of Microprocessor for quicklook observing the pilot valve on each flask for medicinal preparations, is safeguarded in time.
The invention also discloses a kind of online test methods for gas extinguishing system, include the following steps：
1）The first disengaging gear is opened, makes to keep safe distance between active bottle and driving device, second is opened and disengages dress
It sets, makes to keep safe distance between pilot valve and flask for medicinal preparations；
2）Input electrical signal opens selector valve, driving device and storage bottle；
3）First signal feedback device monitors the open/close states of selector valve and emits signal, and the first sender unit is supervised
It measures the action state of driving device and emits signal；
4）Medicament opens driving device by primer liner and pilot valve, the first sender unit monitor driving device
Action state and emit signal, second signal emitter monitors the action state of pilot valve and emits signal；
5）Second signal feedback device monitors the pressure in primer liner and emits signal；
6）Signal receiving device receives the first sender unit, second signal emitter, the first signal feedback dress
It sets and signal that second signal feedback device is sent out, completes detection；
7）In primer liner medicament completely release after, driving device, pilot valve automatically reset, close the first disengaging gear and
Second disengaging gear.
The invention has the advantages that simple in structure, install convenient, is not dismounting all parts, entire gas is kept to go out
In the state that fiery system and on-line measuring device are complete, fast and effeciently starter, pilot valve and selector valve can be moved
It is detected as reliability, while the leakproofness of primer liner is detected, and active bottle and flask for medicinal preparations are not triggered
Start.
Description of the drawings
Fig. 1 is the system building structural schematic diagram of the present invention.
Fig. 2 is structural schematic diagram when the first disengaging gear is in the first working position.
Fig. 3 is structural schematic diagram when the first disengaging gear is in the second working position.
Fig. 4 is structural schematic diagram when the first disengaging gear is in on-line checking action state.
Fig. 5 is the fundamental diagram of the present invention.
Specific implementation mode
In order to make those skilled in the art be better understood from the present invention program, below in conjunction in the embodiment of the present invention
Attached drawing carries out clear, complete description to the technical solution in inventive embodiments, it is clear that described embodiment is only this
A part of the embodiment of invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, should all belong to the scope of protection of the invention.
Shown in referring to Fig.1, a kind of on-line measuring device for gas extinguishing system, the on-line measuring device is established
Through on mounted gas extinguishing system, gas extinguishing system includes primer liner 5 and is connected in header 8 by high-pressure hose 81
On active bottle 20, multiple flask for medicinal preparations 32 and discharge conduit 9, multiple selector valves 4 are equipped between header 8 and discharge conduit 9, it is main
Dynamic bottle 20 is equipped with electromagnetic actuator device 21, and flask for medicinal preparations 32 is equipped with pilot valve 31.
On-line measuring device include the storage bottle 1 for being stored with high pressure medicament needed for on-line checking, the first sender unit,
It is located at the first disengaging gear 2 between active bottle 20 and driving device 21, second signal emitter, is located at flask for medicinal preparations 32 and elder generation
The second disengaging gear 3, the first signal feedback device 41, second signal feedback device 51 between pilot valve 31 and signal receiving device
6.Storage bottle 1 is connected to by high-pressure hose 81 on header 8, and the first sender unit can monitor driving device 21
Action state simultaneously emits signal to signal receiving device 6, and the first disengaging gear 2 can keep active bottle when carrying out on-line checking
20 are closed, i.e., driving device 21 downwards driving cutter head in the state of, 20 upper container valve of cutter head and active bottle it is close
Also keep safe distance, i.e. cutter head that can not puncture sealing diaphragm between sealer piece.Second signal emitter can monitor elder generation
The action state of pilot valve 31 simultaneously emits signal to signal receiving device 6.Second disengaging gear 3 and 2 principle phase of the first disengaging gear
Together, flask for medicinal preparations 32 can be kept to be closed when carrying out on-line checking, i.e., drives knife downwards in rotation pilot valve 31
In the state of head, also keep safe distance, i.e. cutter head that can not puncture between the sealing diaphragm of 32 upper container valve of cutter head and flask for medicinal preparations
Seal diaphragm.First signal feedback device 41 is used to monitor the open/close states of selector valve 4, and emits to signal receiving device 6 and believe
Number.Second signal feedback device 51 is used to monitor the pressure in primer liner 5.In this present embodiment, signal receiving device 6 also wraps
Monitoring center is included, signal is directly fed back to monitoring center by the first signal feedback device 41 and second signal feedback device 51.Letter
Number reception device 6 is for receiving the first sender unit, second signal emitter, 41 machine second of the first signal feedback device
The signal that signal feedback device 51 is sent out.Storage bottle 1 is equipped with delay driving device, when electromagnetic actuator device fails to open actively
When bottle 20, after one section of shorter time interval, which can open storage bottle 1, by storage bottle 1
High pressure medicament start active bottle 20 and flask for medicinal preparations 32.
With reference to shown in Fig. 2-4, the first disengaging gear 2 is located between driving device 21 and the container value of active bottle 20, Yu Ben
Driving device 21 is electromagnetic actuator device in embodiment, is equipped with push rod 211, which is mounted on to be drivingly connected and cover
On 212, it is drivingly connected lid 212 and is threadedly attached on the first disengaging gear 2, and compress third sealing element, in the present embodiment
In be seal joint structure, it is ensured that the sealing performance of second seal.First disengaging gear 2 include valve body 22, can be in valve body 22
The valve rod 23 and position-limit mechanism of interior movement.For the ease of adjusting the direction of the first disengaging gear 2, valve body 22 includes upper valve body under
Valve body, the upper end of lower valve body are equipped with the step-like structure to contract, and lower valve body is rotatably sleeved on the outer wall of upper valve body,
And the outer wall of upper valve body is equipped with the step-like structure expanded outwardly for being fastened on lower valve body top surface, lower valve body passes through connector 7
It is connected with container value, the end of connector 7 extends outward to form card division 71.Valve rod 23 passes through first seal, the second sealing
Part and third sealing element, are sealedly connected in valve body 22, and the lower end of valve rod 23 is equipped with trigger member 231, this is touched in this present embodiment
Outbox 231 is cutter head structure.Through-hole is offered on the side wall of valve body 22, is provided with locking piece 221 on the through-hole pluggablely, it should
Locking piece 221 and position-limit mechanism, connector 7 coordinate so that valve rod 23 has the first working position and the second working position, when in the
When one working position, the card division 71 of connector 7 is located at the top of locking piece 221, and driving device 21 can drive trigger member 231 to wear downwards
The sealing element on the triggering container value of connector 7 is crossed, sealing element is blowout disk in this present embodiment, and specially cutter head punctures safety
Container value is opened in diaphragm triggering；When in the second working position, card division 71 is between locking piece 221 and valve body 22, trigger member
Safe distance, i.e. cutter head is kept not to puncture blowout disk and open container value between 231 and sealing element.
Position limiting structure includes locating part 222, positioning region 232 and return unit 233, and the inner wall of lower valve body is equipped with internal thread knot
Structure, locating part 222 set the operation stroke of valve rod 23 by the internal thread can move up and down.Positioning region 232 is arranged in valve
On bar 23, positioning region 232 is the outwardly extending bulge loop structure of 23 outer wall of valve rod in this present embodiment, and first seal is arranged at this
Between the outer wall and upper valve body inner wall of bulge loop structure, valve rod 23 can be limited in centainly by locating part 222 with the cooperation of positioning region 232
It is moved up and down in stroke to ensure the distance between trigger member 231 and sealing element.Return unit 233 is set on valve rod 23, with this
Return unit 233 is spring in embodiment, and one end and the bottom surface of positioning region 232 offset, and the other end offsets with connector 7.For
Avoid spring from being displaced, the upper table of connector 7 downwards concave shape at limiting slot 72, the other end of spring and the limiting slot
72 bottom wall offsets.
It is equipped with stopper 234 positioned at the top of positioning region 232 on valve rod 23, the stopper 234 is and positioning in this present embodiment
Portion 232 is wholely set, and outer diameter is less than the bulge loop structure of 232 outer diameter of positioning region, to the side of the stopper 234 and upper valve fluid chamber
Cavity is formed between wall and top surface.The side wall of upper valve body is equipped with the indoor channel of chamber for entering valve body 22 for driving gas
223, which is connected with above-mentioned cavity, and channel 223 is equipped with jointing 224, passes through the jointing 224 and gas
The primer liner 5 of body fire extinguishing system is connected.
The operation principle of first disengaging gear 2 is, when in the first working position, i.e., as shown in Fig. 2, locking piece 221 is inserted
Enter the side wall of lower valve body, the card division 71 on connector 7 is fastened on 221 upper surface of locking piece, the stroke model that valve rod 23 moves up and down
It encloses more than trigger member 231 at a distance between the sealing element being arranged in container value, i.e. 21 driving push rod 211 of electromagnetic actuator device
Valve rod 23 is pushed down on, when valve rod 23 compresses return unit 233, the trigger member 231 positioned at 23 end of valve rod can puncture sealing element, from
And start active bottle 20.
When carrying out the Reliability of Microprocessor of on-line checking driving device 21, the first disengaging gear 2 is in the second working position, i.e.,
As shown in Figure 3,4, locking piece 221 is extracted, due to the reply force effect by return unit 233, the first disengaging gear 2 is to moving up
It is dynamic, when card division 71 is in contact with lower valve body, locking piece 221 is inserted into the side wall of lower valve body, to which electromagnetic actuator device 21 drives
When dynamic push rod 211 pushes down on valve rod 23, the first disengaging gear 2 can only be small between locking piece 221 and the bottom wall of lower valve body
Range moves, and the distance between trigger member 231 and sealing element are widened, in the case where electromagnetic actuator device 21 acts, triggering
Part 231 will not puncture sealing element and start active bottle 20.And it is outside that the meeting of the first sender unit in driving device 21 is arranged
The signal that driving device 21 can work normally is sent out, it is dynamic to driving device 21 to be completed under the premise of not starting active bottle 20
Make the detection of reliability.
When with gas starting active bottle 20 is driven, the first disengaging gear 2 is in the first working position, in primer liner 5
High pressure medicament the cavity between upper valve body and stopper 234 is passed through by channel 223, to which high pressure medicament pushes valve rod 23 downward
Mobile, the trigger member 231 of 23 end of valve rod punctures sealing element and starts active bottle 20.The gas for realizing the first disengaging gear 2 starts
With the double source startup function electrically activated.
The structure of second disengaging gear 3 is identical with the first disengaging gear 2 as principle, the difference is that by driving device 21
Change pilot valve 31 into.
Referring to Figure 5, work step of the invention and principle are when conducting on-line testing, to open first and disengage dress
2 are set, driving device 21 is made to disengage active bottle 20, even if driving device 21 starts rear blade and the sealing on 20 container value of active bottle
Diaphragm reaches safe distance, opens the second disengaging gear 3, the sealing diaphragm of cutter head and flask for medicinal preparations after making pilot valve 31 act it
Between reach safe distance.Input electrical signal successively starts selector valve 4, driving device 21 and storage bottle 1, driving dress by program again
Set 21 be connected to enabling signal after, start cutter head do puncture action, the first sender unit sends out signal, signal receiving device 6
The signal that the first sender unit is sent out is received, display drive apparatus 21 can be operating normally, and indicate that driving device 21 can
Started in a manner of realizing and electrically activating.The high pressure medicament in storage bottle 1 flows through selector valve 4 by header 8 simultaneously, when selector valve 4
After opening, the medicament in pipe network is divided into two, and a part is discharged into the atmosphere by the nozzle in discharge conduit 9, part stream
To primer liner 5.Dress can be fed back by the first signal by flowing to the medicament that discharge conduit 9 is discharged into the atmosphere by selector valve 4 at this time
41 are set to monitor and feed back to signal receiving device 6 or monitoring center.Flowing to the medicament of primer liner 5 can be fed back by second signal
Device 51 monitors and feeds back to monitoring center or signal receiving device 6.High pressure medicament in primer liner 5 flows to driving respectively
At device 21 and pilot valve 31, for pilot valve 31 under the action of by high pressure medicament, internal piston cutter head does puncture action, and second
Sender unit acts according to the pilot valve 31 accordingly numbered and sends out signal, and signal receiving device 6 receives second signal
The signal that emitter is sent out shows the Reliability of Microprocessor for the pilot valve 31 accordingly numbered.Driving device 21 is by high-pressure medicine
Under the action of agent, start cutter head and do puncture action, the first sender unit sends out signal, and signal receiving device 6 receives the
The signal that one sender unit is sent out, display drive apparatus 21 can be operating normally, and indicate that gas may be implemented in driving device 21
Starting mode starts.The gas in primer liner 5 can be sealed between pilot valve 31, driving device 21 and selector valve 4 at this time,
According to the pressure value that second signal feedback device 51 monitors, the sealing performance of primer liner 5 can be detected, if the second letter
The pressure value that number feedback device 51 monitors is a stability number, then the leakproofness of primer liner 5 is good, if pressure value continues
The leakproofness for declining then primer liner 5 is bad.After detection, the high pressure medicament in storage bottle 1 release it is complete, selector valve 4 from
It is dynamic to reset, the connection at second signal feedback device 51 is relaxed, the high pressure medicament in primer liner 5 releases complete, driving device
21 and pilot valve 31 automatically reset, close the first disengaging gear 2, the second disengaging gear 3 so that driving device 21 and pilot valve 31
Possess enough distances in normal use and punctures sealing diaphragm in active bottle 20 and flask for medicinal preparations 32.
Above-mentioned specific implementation mode is used for illustrating the present invention, rather than limits the invention, the present invention's
In spirit and scope of the claims, to any modifications and changes that the present invention makes, the protection model of the present invention is both fallen within
It encloses.
Claims (6)
- It is special set on being completed on the gas extinguishing system of installation 1. a kind of on-line measuring device for gas extinguishing system Sign is that the on-line measuring device includes：Storage bottle (1), for storing medicament needed for on-line checking；First sender unit is used for the action state of monitoring driving device (21) and emits signal；First disengaging gear (2) is set between active bottle (20) and driving device (21), and master is kept when for carrying out on-line checking Dynamic bottle (20) is closed；Second signal emitter, action state for monitoring pilot valve (31) simultaneously emit signal；Second disengaging gear (3) being set between flask for medicinal preparations (32) and pilot valve (31), medicament kept when for carrying out on-line checking Bottle (32) is closed；First signal feedback device (41), the open/close states for monitoring selector valve (4)；Second signal feedback device (51), for monitoring the pressure in primer liner (5)；Signal receiving device (6), it is anti-for receiving first sender unit, second signal emitter, the first signal The signal that feedback device (41) and second signal feedback device (51) are sent out；The storage bottle (1) is equipped with delay driving device, when When driving device fails to open active bottle (20), the delay driving device is for starting storage bottle (1)；The second signal transmitting Device is equipped with number.
- 2. on-line measuring device according to claim 1, it is characterised in that：First disengaging gear (2) includes valve body (22), the valve rod (23) and position-limit mechanism that can be moved in valve body (22), the valve body (22) pass through connector (7) and active bottle (20) it is connected, the valve rod (23) is sealedly attached in valve body (22), and valve rod (23) end is equipped with trigger member (231)；Valve body (22) it is equipped with locking piece (221), which coordinates with position-limit mechanism, connector (7) so that valve rod (23) has First working position and the second working position, when in the first working position, the connector (7) is at least partially disposed at locking piece (221) top, the driving device (21) can drive downwards trigger member (231) that the connector (7) triggering is passed through to be set to actively Sealing element on bottle (20) is to open active bottle (20)；When in the second working position, connector (7) is at least partially disposed at locking Between part (221) and valve body (22), the trigger member (231) keeps safe distance between sealing element.
- 3. on-line measuring device according to claim 2, it is characterised in that：The position-limit mechanism includes being set to valve body (22) Interior locating part (222) is set on valve rod (23) and the positioning region (232) of the locating part (222) cooperation and is sheathed on valve rod (23) return unit (233) on, the positioning region (232) connect with valve body (22) inner wall sealing, described return unit (233) one end It offsets with positioning region (232), the other end is butted on connector (7).
- 4. on-line measuring device according to claim 2, it is characterised in that：The valve rod (23) is equipped with stopper (234), The stopper is set to the top of positioning region (232), for the stopper (234) so that being formed between valve body (22) inner wall and valve rod (23) Cavity；The valve body (22) is equipped with the channel (223) for entering for driving gas, which connects with the cavity It is logical.
- 5. on-line measuring device according to claim 2, it is characterised in that：The driving device (21) fills for electromagnetic drive It sets.
- 6. a kind of detection method of on-line measuring device according to any one of claims 1-5, it is characterised in that including Following steps：1) the first disengaging gear (2) is opened, makes to keep safe distance between active bottle (20) and driving device (21), opens second Disengaging gear (3) makes to keep safe distance between pilot valve (31) and flask for medicinal preparations (32)；2) input electrical signal opens selector valve (4), driving device (21) and storage bottle (1)；3) the first signal feedback device (41) monitors the open/close states of selector valve (4) and emits signal, the first signal transmitting dress It sets the action state for monitoring driving device (21) and emits signal；4) medicament opens driving device (21) by primer liner (5) and pilot valve (31), the first sender unit monitor The action state of driving device (21) simultaneously emits signal, and second signal emitter monitors the action state of pilot valve (31) simultaneously Emit signal；5) second signal feedback device (51) monitors the pressure in primer liner (5) and emits signal；6) signal receiving device (6) receives the first sender unit, second signal emitter, the first signal feedback device (41) and the signal that sends out of second signal feedback device (51), detection is completed；7) after the release completely of primer liner (5) interior medicament, driving device (21), pilot valve (31) automatically reset, and it is de- to close first Opening apparatus (2) and the second disengaging gear (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903982.XA CN105344055B (en) | 2015-12-09 | 2015-12-09 | On-line measuring device and detection method for gas extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903982.XA CN105344055B (en) | 2015-12-09 | 2015-12-09 | On-line measuring device and detection method for gas extinguishing system |
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| CN105344055A CN105344055A (en) | 2016-02-24 |
| CN105344055B true CN105344055B (en) | 2018-09-28 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2205198A (en) * | 1987-05-09 | 1988-11-30 | Gewerk Eisenhuette Westfalia | Monitoring the operation of electromagnetic fluid valves |
| DE19642764A1 (en) * | 1995-10-23 | 1997-04-24 | Toyota Motor Co Ltd | Measuring piston stroke in solenoid valve without taking actual inside dimension for vehicle |
| CN202751727U (en) * | 2012-09-06 | 2013-02-27 | 天广消防股份有限公司 | Firefighting automatic fire extinguishing system on-line monitoring device based on wireless fidelity (WIFI) wireless communication |
| CN102974064A (en) * | 2012-11-19 | 2013-03-20 | 浙江信达可恩消防实业有限责任公司 | Fire-extinguishing agent gas pressure network monitoring system of gas fire-extinguishing system bottle unit |
| CN205379575U (en) * | 2015-12-09 | 2016-07-13 | 浙江信达可恩消防实业有限责任公司 | A on -line measuring device for gas fire extinguishing systems |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005058460A (en) * | 2003-08-12 | 2005-03-10 | Yamato Protec Co | Device and method for inspecting fire fighting equipment |
-
2015
- 2015-12-09 CN CN201510903982.XA patent/CN105344055B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2205198A (en) * | 1987-05-09 | 1988-11-30 | Gewerk Eisenhuette Westfalia | Monitoring the operation of electromagnetic fluid valves |
| DE19642764A1 (en) * | 1995-10-23 | 1997-04-24 | Toyota Motor Co Ltd | Measuring piston stroke in solenoid valve without taking actual inside dimension for vehicle |
| CN202751727U (en) * | 2012-09-06 | 2013-02-27 | 天广消防股份有限公司 | Firefighting automatic fire extinguishing system on-line monitoring device based on wireless fidelity (WIFI) wireless communication |
| CN102974064A (en) * | 2012-11-19 | 2013-03-20 | 浙江信达可恩消防实业有限责任公司 | Fire-extinguishing agent gas pressure network monitoring system of gas fire-extinguishing system bottle unit |
| CN205379575U (en) * | 2015-12-09 | 2016-07-13 | 浙江信达可恩消防实业有限责任公司 | A on -line measuring device for gas fire extinguishing systems |
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| Publication number | Publication date |
|---|---|
| CN105344055A (en) | 2016-02-24 |
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