CN2695735Y - Pretector for preventing gas leakage - Google Patents
Pretector for preventing gas leakage Download PDFInfo
- Publication number
- CN2695735Y CN2695735Y CN 200420072883 CN200420072883U CN2695735Y CN 2695735 Y CN2695735 Y CN 2695735Y CN 200420072883 CN200420072883 CN 200420072883 CN 200420072883 U CN200420072883 U CN 200420072883U CN 2695735 Y CN2695735 Y CN 2695735Y
- Authority
- CN
- China
- Prior art keywords
- piston valve
- explosion
- air
- valve body
- card
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Safety Valves (AREA)
Abstract
The utility model provides a pretector for preventing gas leakage. The utility model comprises: an air duct inside an explosion-proof enclosure, an air-in interface and an air-out interface on the two ends of the air duct, an air-proof air chamber, a piston valve body inside the air-proof air chamber, an electromagnet device, an inducer, and a controlling circuit. The air duct is divided into two segments. The inner end-face of the air duct is positioned inside the air-proof air chamber. A gasket is arranged on the air-in interface. The outboard of the gasket is connected with a piston valve. A spring which is fixed between the convex edge of the piston valve end and the cover is arranged on the piston valve. The rear part of the piston valve body is provided with a groove corresponding to which a hippocrepiform card is provided. An electromagnet device containing a moving core is provided beneath the air-proof air chamber on the position of the hippocrepiform card. The upper end of the moving core is connected with the hippocrepiform card. An opening handle which is connected with the rear part of the piston valve body via a connecting rod is arranged on the explosion-proof enclosure. The utility model has the advantages of high working security, strong anti-leakage reliability, comprehensive function and convenient use.
Description
Technical field
The utility model relates to a kind of gas safe supervisory device, particularly is installed on the combustion gas anti-leak protection device on the gas pipeline.
Background technique
Along with the universal use of combustion gas, gas pipeline generally all has been installed in the resident family, enjoying cleaning and simultaneously easily, the accident that gas leakage causes also can be following, and serious meeting sets off an explosion and serious accident such as fire.In order to prevent the generation of above-mentioned accident, sold on the market and have flashing light alarm, sound alarm, open ventilating fan and turn off the gas leak detector of general solenoid valve function.It is big that this traditional alarm has a volume, the operating voltage height, dangerous big, power consumption is big and shortcoming such as cost height.
Summary of the invention
Combustion gas anti-leak protection device described in the utility model can solve that the job security that traditional alarm exists is poor, problems such as power consumption height and cost height.
The structure of combustion gas anti-leak protection device described in the utility model comprises: be mounted on the air pipe in the explosion-resistant enclosure, the inlet, outlet interface that is positioned at the air pipe two ends in the explosion-resistant enclosure outside, the sealed gas chamber of explosion-resistant enclosure, the piston valve body of sealed gas chamber, electromagnet apparatus, inductor and the control circuit of explosion-resistant enclosure; Described air pipe is two sections, its interior edge face is positioned at sealed gas chamber, at air inlet port adjacent, be provided with periphery and be fixed in sealing gasket on the sealed gas chamber, the sealing pad outside is fixedly connected together with a piston valve, piston valve passes the lid that is fixed on the sealed gas chamber, a spring housing is arranged on piston valve, is fixed between convex edge, piston valve end and the lid; The piston valve body posterior face has a circle draw-in groove; the respective slot place is provided with ungulate card; when piston valve body is positioned at the enable possition; the position of this ungulate card is in the Baltimore groove place at piston rear portion; and snap in Baltimore groove; guarantee that piston is held open state; below the sealed gas chamber at ungulate card place, be provided with a electromagnet apparatus with movable core; the movable core upper end is connected with described ungulate card; the lower end is provided with Returnning spring; on explosion-resistant enclosure, be provided with the unlatching handle; open handle and be connected with the rear portion of piston valve body by a connecting rod, described sensor can be a temperature-sensitive; in the detection combustion gas one or both, its output terminal is connected with a control circuit; when it had signal output, control circuit provided a pulsed operation signal to electromagnet apparatus.
Aforesaid a kind of combustion gas anti-leak protection device, described control circuit also is connected with a timer circuit.
Aforesaid a kind of combustion gas anti-leak protection device, described sensor and timer are arranged in the explosion-resistant enclosure, and sensor probe should expose outside explosion-resistant enclosure.
Combustion gas anti-leak protection device described in the utility model is compared with traditional fuel gas alarm, has following advantage and positive effect:
1. job security height, no any electrical apparatus element in sealed gas chamber improve the peformance margin of this device greatly.
2. when this device uses, be serially connected with in the gas pipeline, directly control closing of steam line, thoroughly cut off source of the gas, therefore, the good reliability of anti-leak.
3. be equipped with two kinds of inductors and timer, complete function, easy to use.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a ungulate card structural representation in the piston valve body control gear of the present utility model;
Fig. 3 is a schematic block circuit diagram of the present utility model.
Embodiment
The utility model concrete structure can be referring to Fig. 1: this apparatus structure comprise the air pipe 20 that passes explosion-resistant enclosure 18, the inlet, outlet interface 1,17 that air pipe 20 exposes to explosion-resistant enclosure, the piston valve body 6 that is positioned at the top-right closed air chamber 2 of explosion-resistant enclosure, sealed air chamber, closed air chamber below the electromagnet apparatus with movable core 13, be installed on the bottom-right temperature inductor 14 of explosion-proof shell, rock gas or coal gas inductor 15 and timer 16.The printed circuit board (PCB) of control circuit also is fixed in the explosion-proof casing lower right.
Among Fig. 1, the mounting hole of two air pipes 20 is arranged on the left side wall of closed air chamber 2, described air pipe 20 is two sections in explosion-resistant enclosure, and its inner end is eight angular shape, and port enters in the closed air chamber by mounting hole.Described upper end-hole 3 is a suction port, and lower end mouth 19 is the air outlet.On the close position of upper end-hole 3, be vertically installed with a rubber gasket 4, be fixed with piston valve body 6 in sealing gasket 4 outsides, these piston valve body 6 rear portions are passed and are vertically installed in fixedly lid 11 of the interior piston of closed air chamber.Have a spring 5 to be placed on this piston valve body 6, two ends are fixed on piston valve body 6 front end convex edges and the described lid 11, and the elastic force of a closing direction is provided for piston.Be provided with groove at lid 11 rear portions, the respective slot place is provided with ungulate card 10, and when piston valve body 6 was positioned at the enable possition, the position of this ungulate card 10 was in the Baltimore groove place at piston rear portion, and snaps in Baltimore groove, guaranteed that piston is held open state.Be provided with an electromagnet apparatus 13 with movable core below the sealed gas chamber at ungulate card 10 places, the movable core upper end is connected with described ungulate card 10, and the lower end is provided with Returnning spring.Receive the pulse start signal of control circuit at electromagnet after, movable core moves downward, and drives ungulate card 10 and outwards moves, and piston valve body 6 is released, and under the elastic force effect, drives the suction port 3 that sealing gasket is closed air pipe.The structure of ungulate card is seen Fig. 2.
On explosion-resistant enclosure 18 walls of piston valve body rear end correspondence, there is a connecting rod 9 to pass, these connecting rod 9 one ends are connected with piston body 6 rear ends, and the other end is connected with unlatching handle 7 one ends of a lever construction, and the strong point 9 of this unlatching handle 7 is located on the explosion-resistant enclosure outer wall.When movable valve 6 is in closed condition, utilize above-mentioned unlatching handle 7 that movable valve 6 is reduced to opening state, ungulate card 10 enters in the groove at piston valve body 6 rear portions automatically, and piston valve body 6 is opening state again.
Fig. 3 is a schematic block circuit diagram.The sensor of temperature-sensitive and detection combustion gas is connected with the input end of a control circuit, when temperature surpasses threshold values or gas leakage is arranged, can export a high level, this signal triggering control circuit work can be given the electromagnet apparatus that is connected with its output terminal by pulse signal of output after control circuit is triggered.Electromagnet apparatus can produce an instantaneous electromagnetic field, with movable core adhesive wherein, and then opens piston valve body, closes fuel gas pipeline.In order to realize the function of automatic cutoff, this device has been equipped with a timer circuit, and the output terminal of this timer circuit is connected with control circuit.
Claims (3)
1. a combustion gas anti-leak protection device is characterized in that it comprises: be mounted on the air pipe in the explosion-resistant enclosure, the inlet, outlet interface that is positioned at the air pipe two ends in the explosion-resistant enclosure outside, the sealed gas chamber of explosion-resistant enclosure, the piston valve body of sealed gas chamber, electromagnet apparatus, inductor and the control circuit of explosion-resistant enclosure; Described air pipe is two sections, its interior edge face is positioned at sealed gas chamber, at air inlet port adjacent, be provided with periphery and be fixed in sealing gasket on the sealed gas chamber, the sealing pad outside is fixedly connected together with a piston valve, piston valve passes the lid that is fixed on the sealed gas chamber, a spring housing is arranged on piston valve, is fixed between convex edge, piston valve end and the lid; The piston valve body posterior face has a circle draw-in groove; the respective slot place is provided with ungulate card; when piston valve body is positioned at the enable possition; the position of this ungulate card is in the Baltimore groove place at piston rear portion; and snap in Baltimore groove; guarantee that piston is held open state; below the sealed gas chamber at ungulate card place, be provided with a electromagnet apparatus with movable core; the movable core upper end is connected with described ungulate card; the lower end is provided with Returnning spring; on explosion-resistant enclosure, be provided with the unlatching handle; open handle and be connected with the rear portion of piston valve body by a connecting rod, described sensor can be a temperature-sensitive; in the detection combustion gas one or both, its output terminal is connected with a control circuit; when it had signal output, control circuit provided a pulsed operation signal to electromagnet apparatus.
2. combustion gas anti-leak protection device as claimed in claim 1 is characterized in that: described control circuit also is connected with a timer circuit.
3. combustion gas anti-leak protection device as claimed in claim 1, it is characterized in that: described sensor and timer are arranged in the explosion-resistant enclosure, and sensor probe should expose outside explosion-resistant enclosure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072883 CN2695735Y (en) | 2004-07-01 | 2004-07-01 | Pretector for preventing gas leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072883 CN2695735Y (en) | 2004-07-01 | 2004-07-01 | Pretector for preventing gas leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2695735Y true CN2695735Y (en) | 2005-04-27 |
Family
ID=34777906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420072883 Expired - Fee Related CN2695735Y (en) | 2004-07-01 | 2004-07-01 | Pretector for preventing gas leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2695735Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728456A (en) * | 2013-12-19 | 2015-06-24 | 李俊贤 | Pipeline switch and assembly and disassembly method thereof |
-
2004
- 2004-07-01 CN CN 200420072883 patent/CN2695735Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728456A (en) * | 2013-12-19 | 2015-06-24 | 李俊贤 | Pipeline switch and assembly and disassembly method thereof |
| CN104728456B (en) * | 2013-12-19 | 2017-05-10 | 李俊贤 | Pipeline switch and assembly and disassembly method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104482256B (en) | Intelligent electrically-operated check valve | |
| CN111244780A (en) | Switch board with fire prevention heat dissipation function | |
| CN2695735Y (en) | Pretector for preventing gas leakage | |
| CN202003488U (en) | Gas leakage alarming and ventilating device | |
| CN201521797U (en) | Anti-leakage automatic gas protector | |
| CN201374116Y (en) | Intelligent gas alarm | |
| CN203147922U (en) | Combustible refrigerant air-conditioner | |
| CN101284167A (en) | Automatic open and close valve with fume ionic sensor | |
| CN211084171U (en) | Smoke ventilator with hide gas alarm | |
| CN200940893Y (en) | Liquid sealing cooker hood | |
| CN214866006U (en) | Intelligent ventilation cabinet | |
| CN210806381U (en) | Anticorrosive electric control cabinet | |
| CN208609333U (en) | Electric cabinet and heat-exchange system | |
| CN220540436U (en) | Wireless Bluetooth electromagnetic type gas emergency cut-off valve and gas supply system | |
| CN211295807U (en) | Switch board with fire prevention heat dissipation function | |
| CN205882488U (en) | Reducing fever cubical switchboard | |
| CN212411328U (en) | Gas leakage protection device | |
| CN219911924U (en) | Fireproof smoke exhaust valve | |
| CN2295092Y (en) | Water-pressure linkage gas electromagnetic valve | |
| CN102645908A (en) | Gas-leakage emergency protection device | |
| CN221086691U (en) | Wisdom gas management switch board | |
| CN218816551U (en) | Positioning control mechanism for quick closing valve of steam turbine set | |
| CN209248731U (en) | A kind of gas leakage alarm protective device and wall-hung boiler | |
| CN207610288U (en) | Inexpensive explosion-proof air-conditioner | |
| CN209054737U (en) | A kind of alarm of detection of natural gas and ventilation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |