CN2039373U - Leakage self-locking device for gas - Google Patents
Leakage self-locking device for gas Download PDFInfo
- Publication number
- CN2039373U CN2039373U CN 88209353 CN88209353U CN2039373U CN 2039373 U CN2039373 U CN 2039373U CN 88209353 CN88209353 CN 88209353 CN 88209353 U CN88209353 U CN 88209353U CN 2039373 U CN2039373 U CN 2039373U
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- CN
- China
- Prior art keywords
- spool
- self
- electromagnetic coil
- electromagnetic
- base seat
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- 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.)
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Abstract
The utility model relates to a fire safety explosion-proof gas leakage alarm, and controlling apparatus, which comprises a control circuit and a magnetic self-locking valve; the control circuit comprises a power supply circuit, a gas sensor probe head, a dc amplifier, a comparison circuit, an alarm circuit and an electromagnetic coil control-driven circuit; the magnetic self-locking valve comprises a valve base seat, a valve core, a self-lock mechanism and an electromagnetic control. If the gas leaks, and the concentration is superior to 0.1%, the apparatus can alarm and automatically close the gas source. The utility model has the advantages of high safety, simple structure, convenient operation and low power consumption.
Description
The present invention relates to the explosion-proof coal gas leakage alarming of a kind of fire safety, control gear.
Coal gas leakage alarming of the prior art, control gear have two kinds: a kind of is civilian gas leakage alarm, it is a kind of simple electronic-circuit device, when gas leakage is arranged, its warning of sounding, its deficiency is: not necessarily have the people on the scene when take place leaking, or can't hear chimes of doom and can not in time handle, the time one is long, leak concentration and just can exceed safety range, so that breaking out of fire or explosive accident.
Another kind is the industrial electro magnet valve, and it can only often be opened or be normally closed, does not have auto-lock function.If be used for the control valve of the self-closing control system of coal gas, gas leakage is arranged, just close automatically, still, when gas concentration is one low slightly, it is in normally open again, and coal gas leaks once more as a result, after concentration increases, it is closed again automatically, so circulation, and the circulation of this Push And Release is a kind of vicious circle.
The objective of the invention is to avoid above-mentioned deficiency of the prior art and provide a kind of energy fire safety the explosion-proof self-closing device of gas leakage.
Purpose of the present invention can reach by following measure: it is made up of control circuit and electromagnetic self-locking valve, the electromagnetic self-locking valve comprises valve base seat, spool, self-locking mechanism and Electromagnetic Control four parts, the valve base seat is positioned on the gas pipe line, and a round platform cylindrical hole is arranged on it; The bottom of spool is a round platform post, just in time insert in the round platform cylindrical hole of valve base seat, with the valve base seat on coal gas vent corresponding position, a spool vent is arranged, the switch on the rotary spool, spool circle rotates, and can change the on off operating mode of air-flow; Self-locking mechanism is controlled by control section, under the normal condition, when spool is in out, soft iron core in the electromagnetic coil is stuck in the spool of rotation half dish of self-locking mechanism and opens on the self-locking recess, and at this moment gas pipe line is unimpeded, if gas leakage is arranged, control circuit is delivered to electromagnetic coil with electric current, move in the electromagnetic coil soft iron core, can not continue to block spool and open a self-locking recess, the automatic half-twist of spool.Vent on the spool can not be communicated with the vent on the pedestal, realize the self-closing function of gas leakage thus.
Purpose of the present invention can also reach by following measure: its electromagnetic self-locking valve comprises valve base seat, spool, self-locking mechanism and Electromagnetic Control four parts, the valve base seat is positioned on the gas pipe line, both sides are respectively gas inlet and coal gas air outlet, there is a vent to make the import and export of coal gas unimpeded along airflow direction, with the air-flow Vertical direction one round platform cylinder hole is being arranged, spool can be inserted wherein.The first half of spool is a cylindrical bar, Lower Half is the round platform post, spool just in time can insert in the round platform cylinder hole on the valve base seat, with the valve base seat in the vent corresponding position one spool vent, the switch on the rotary spool are arranged, the spool circle rotates, can change the on off operating mode of air-flow, spool is fixed on the valve base seat under the assistance of the airtight tension spring of spool, spool retaining washer, spool set screw nut, spool fixing bolt, can only rotate, can not do upper and lower motion.Self-locking mechanism comprises the extension spring of spool off-position, the extension spring immovable point, spool is opened the spacing point in position, rotation half dish, spool is opened a self-locking recess, it is by Electromagnetic Control, when the normal condition lower valve core is in out, soft iron core in the electromagnetic coil is stuck in spool and opens on the self-locking recess, at this moment gas pipe line is unimpeded, if gas leakage is arranged, control circuit is delivered to electromagnetic coil with electric current, move in the soft iron core, can not continue to block spool and open a self-locking recess, rotate half dish and open half-twist under the effect of an extension spring at spool, and drive the spool half-twist, the vent on the spool can not be communicated with the vent on the valve base seat.Solenoid valve is made up of electromagnetic coil soft iron core, electromagnetic coil input line, electromagnetic coil, soft iron core tension spring, under the normal condition, no current passes through in the electromagnetic coil, and when spool was in out, the electromagnetism soft iron core just in time blocked spool and opens a self-locking recess, when gas leakage, control circuit send electric current to electromagnetic coil, and electromagnetic coil produces an electromagnetic field, makes in the electromagnetism soft iron core and moves, can not continue to block spool and open a self-locking recess, realize closing automatically the function of source of the gas.
The drawing of accompanying drawing is described as follows:
Fig. 1 is the structural representation of electromagnetic self-locking valve portion of the present invention, and among the figure: 1 is gas inlet, and 2 is the coal gas air outlet, 3 is valve base seat vent, 4 is the round platform cylindrical hole, and 5 is spool, and 6 is the spool vent, 7 is valve switch, 8 is the airtight tension spring of spool, 9,10 is the spool retaining washer, and 11 is the spool set screw nut, 12 is the spool fixing bolt, 13 is the extension spring of spool off-position, and 14 for the extension spring immovable point, and 15 open a spacing point for spool, 16 are rotation half dish, 17 open a self-locking recess for spool, and 18 is the electromagnetic coil soft iron core, and 19 is the electromagnetic coil input line, 20 is electromagnetic coil, and 21 is the soft iron core extension spring.
The present invention is described in further detail below in conjunction with drawings and Examples: the present invention is made up of control circuit and electromagnetic self-locking valve, and control circuit comprises power circuit, combustible gas gas-sensing probe, dc amplifier, comparison circuit, warning circuit and six parts of solenoid controlled drive circuit.The electromagnetic self-locking valve comprises the valve base seat, spool, self-locking mechanism and Electromagnetic Control four parts, as shown in Figure 1, wherein: the valve base seat is positioned on the gas pipe line, both sides are respectively suction port (1) and air outlet (2) of coal gas, there is a vent (3) to make advancing of coal gas along airflow direction, export unimpeded, with the air-flow Vertical direction one round platform cylinder hole (4) is being arranged, spool can be inserted wherein: the first half of spool (5) is a cylindrical bar, Lower Half is the round platform post, it just in time can insert in the round platform cylinder hole on the valve base seat, with the valve base seat in the vent corresponding position one spool vent (6) is arranged, switch on the rotary spool (7), the spool circle rotates, can change the on off operating mode of air-flow, spool is at the airtight tension spring of spool (8), spool retaining washer (9,10), spool set screw nut (11), spool fixing bolt (12), assistance under, be fixed on the valve base seat, can only rotate, can not do, following motion, self-locking mechanism comprises spool off-position extension spring (13), extension spring immovable point (14) spool is opened position spacing point (15), rotation half dish (16) and spool are opened a self-locking recess (17), under the normal condition, when spool is in out, electromagnetism soft iron core (18) in the Electromagnetic Control part is stuck in spool and opens on the self-locking recess, at this moment gas pipe line is unimpeded, when if gas leakage is arranged, control circuit send electric current to electromagnetic coil (20), move in the soft iron core, can not continue to block spool and open a self-locking recess, rotate half dish and open automatic half-twist under the effect of an extension spring at spool, and drive spool half-twist, vent on the spool can not be communicated with the vent on the valve base seat, the Electromagnetic Control part is by electromagnetic coil soft iron core (18), electromagnetic coil input line (19), electromagnetic coil (20), soft iron core tension spring (21) is formed, under the normal condition, no current passes through in the electromagnetic coil, when spool is in out, the electromagnetism soft iron core just in time blocks spool and opens a self-locking recess, when gas leakage, control circuit send electric current to electromagnetic coil, electromagnetic coil produces an electromagnetic field, make in the electromagnetism soft iron core and move, can not continue to block spool and open a self-locking recess, at this moment the automatic half-twist of spool, vent on the spool no longer is communicated with vent on the valve base seat, and this has just realized the function that source of the gas is closed automatically.
The present invention has following advantage compared to existing technology:
It is 1, safe,
2, automaticity height,
It is 3, simple in structure, easy to use,
4, product cost is low,
5, power consumption is little, electric power about 3W,
6, can use continuously in 24 hours.
Claims (5)
1, the explosion-proof self-closing device of gas leakage of a kind of fire safety, it is made up of control circuit and electromagnetic self-locking valve, it is characterized in that: the electromagnetic self-locking valve comprises valve base seat, spool, self-locking mechanism and Electromagnetic Control four parts, and the valve base seat is positioned on the gas pipe line, and a garden platform cylindrical hole (4) is arranged on it; The bottom of spool (5) is a round platform post, just in time insert in the round platform cylindrical hole of valve base seat, with the valve base seat in coal gas vent (3) corresponding position, a spool vent (6) is arranged, switch on the rotary spool (7), the spool circle rotates, and can change the on off operating mode of air-flow; Self-locking mechanism is partly controlled by Electromagnetic Control, under the normal condition, when spool is in out, the electromagnetic coil soft iron core (18) of Electromagnetic Control part is stuck in the opening on the self-locking recess (17) of rotation half dish (16) of self-locking mechanism, at this moment gas pipe line is unimpeded, if gas leakage is arranged, control circuit send electric current to electromagnetic coil (20), move in the electromagnetic coil soft iron core, can not continue to block spool self-locking recess, the automatic half-twist of spool can not be communicated with the spool vent on the spool with the vent on the valve base seat, realizes the self-closing function of gas leakage thus.
2, the self-closing device of a kind of gas leakage according to claim 1, it is characterized in that: its valve base seat is positioned on the gas pipe line, both sides are gas inlet (1) and coal gas air outlet (2) respectively, there is a vent (3) to make the import and export of coal gas unimpeded along airflow direction, one round platform cylinder hole (4) being arranged, spool can be inserted wherein with the air-flow Vertical direction.
3, the self-closing device of a kind of gas leakage according to claim 1, it is characterized in that: its spool first half is a cylindrical bar, Lower Half is the round platform post, spool (5) just in time can insert in the round platform cylinder hole on the valve base seat, with the valve base seat in the vent corresponding position, one spool vent (6) is arranged, switch on the rotary spool (7), the spool circle rotates, and can change the on off operating mode of air-flow, and spool is at the airtight tension spring of spool (3), spool retaining washer (9,10), spool set screw nut (11), under the assistance of spool fixing bolt (12), be fixed on the valve base seat and can only rotate, can not do, following motion.
4, the self-closing device of a kind of gas leakage according to claim 1, it is characterized in that: its self-locking mechanism comprises spool off-position extension spring (13) extension spring immovable point (14), spool is opened position spacing point (15), rotation half dish (16) and spool are opened a self-locking recess (17), under the normal condition, when spool is in out, the electromagnetic coil soft iron core (18) of Electromagnetic Control part is stuck in spool and opens on the recess, at this moment gas pipe line is unimpeded, if gas leakage is arranged, control circuit send electric current to make in the soft iron core to electromagnetic coil (20) and moves, soft iron core can not continue to block spool and open a self-locking recess, rotation half dish is opened automatic half-twist under the extension spring effect at spool, and the vent on the spool can not be communicated with the vent on the valve base seat.
5, the self-closing device of a kind of gas leakage according to claim 1, it is characterized in that: its Electromagnetic Control part is by electromagnetic coil soft iron core (18), electromagnetic coil input line (19), electromagnetic coil (20), soft iron core tension spring (21) is formed, under the normal condition, no current passes through in the electromagnetic coil, when spool is in out, the electromagnetism soft iron core just in time is stuck in spool and opens on the self-locking recess, when gas leakage, control circuit send electric current to electromagnetic coil, electromagnetic coil produces an electromagnetic field, make in the electromagnetism soft iron core and move, can not continue to block spool and open a self-locking recess, realize the hold one's breath function in source of recloser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88209353 CN2039373U (en) | 1988-08-11 | 1988-08-11 | Leakage self-locking device for gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88209353 CN2039373U (en) | 1988-08-11 | 1988-08-11 | Leakage self-locking device for gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2039373U true CN2039373U (en) | 1989-06-14 |
Family
ID=4843016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88209353 Withdrawn CN2039373U (en) | 1988-08-11 | 1988-08-11 | Leakage self-locking device for gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2039373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101360942B (en) * | 2006-03-20 | 2011-06-01 | 旭有机材工业株式会社 | Rotary valve |
-
1988
- 1988-08-11 CN CN 88209353 patent/CN2039373U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101360942B (en) * | 2006-03-20 | 2011-06-01 | 旭有机材工业株式会社 | Rotary valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |