CN207082208U - A kind of gas leakage automatic exhaust device - Google Patents
A kind of gas leakage automatic exhaust device Download PDFInfo
- Publication number
- CN207082208U CN207082208U CN201720351164.8U CN201720351164U CN207082208U CN 207082208 U CN207082208 U CN 207082208U CN 201720351164 U CN201720351164 U CN 201720351164U CN 207082208 U CN207082208 U CN 207082208U
- Authority
- CN
- China
- Prior art keywords
- relay
- triode
- gas leakage
- button
- exhaust device
- 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
- Emergency Alarm Devices (AREA)
Abstract
It the utility model is related to a kind of gas leakage automatic exhaust device, including gas alarm device, ventilating fan, when flammable gas alarm reaches warning concentration in the sound and light alarm control circuit of triggering alarm, the relay for being 5v or 12v by one DC voltage of circuit in parallel for connecting buzzer, connecting wire for parallel connection is connected on relay coil, when the triode of trigger switch first, which acts, alarms, the coil of relay also obtains electric simultaneously, control relay acts, and the normally closed normally opened contact on relay is completed on-off action when obtaining electric or dead electricity.The utility model is when occurring fuel gas leakage, can be when fuel gas be revealed and reaches finite concentration, automatic start exhaust system discharges space leakage gas, reduce space gases concentration, pass through alarm sound simultaneously, operating personnel are prompted, is being checked or other operations when space gases concentration is dropped to and do not alarmed, is being avoided negligence of operation to cause to greatest extent and dodge quick-fried possibility.
Description
Technical field
A kind of gas leakage automatic exhaust device is the utility model is related to, belongs to technical field of safety protection.
Background technology
Existing gas alarm is alarmed when gas leakage occurs, but is unable to the exhaust of automatic start scavenger fan, is needed
Manually to participate in carrying out start and stop exhaust system, whether the bad grasp of standard is reached, it is necessary to observe gas repeatedly to the gas of discharge
Whether alarm also alarms, if starting gas extraction system for a long time, when space gases concentration has been reduced to minimum and ventilating fan
Also starting, necessarily causing the waste of electric energy.
Utility model content
For the utility model in view of the deficienciess of the prior art, providing a kind of gas leakage automatic exhaust device, energy is automatic
Startup exhaust system, reduce the leakage gas concentration in space, avoid that casualties occurs or maloperation occurs to dodge quick-fried danger.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：A kind of gas leakage automatic exhaust device, bag
Gas alarm device, ventilating fan are included, described gas alarm device is provided with sound and light alarm control circuit, and described ventilating fan is set
There is ventilating fan control circuit；Described sound and light alarm control circuit include first resistor, second resistance, piezo buzzer, after
Electrical equipment, diode, light emitting diode, the first triode, the second triode；Described first resistor is in parallel with second resistance, the
One end is connected with the first power supply after one resistance is in parallel with second resistance；The described first resistor other end draws two-route wire, all the way
The described piezo buzzer one end of connection, another way are connected to one end of described relay coil；Described relay
The positive terminal of described diode is linked into after the coil other end is in parallel with the other end of described piezo buzzer；Described
The negative pole end of diode is connected with the colelctor electrode of the first triode；The other end and light emitting diode of described second resistance are just
Extreme to be connected, the negative pole end of described light emitting diode is connected with the colelctor electrode of the second described triode；Described ventilating fan
Control circuit includes the first button, the second button, A.C. contactor, electrothermal relay；First described button one end is connected to
On one phase power supply of two power supplys；One end of the second described button and one group of auxiliary normally opened contact of described A.C. contactor
One end is connected, and the second button is in parallel with one group of auxiliary normally opened contact of the relay in sound and light alarm control circuit, the second button
It is connected with the other end of the first described button；The other end and relay of the auxiliary normally opened contact of described A.C. contactor
One group of auxiliary normally-closed contact one end be connected, the other end of ac contactor coil is connected with the normally-closed contact of electrothermal relay；Institute
Any one phase in the other two-phase of the normally-closed contact other end access second source for the electrothermal relay stated.
A kind of gas leakage automatic exhaust device as described above, the first described triode and the second described triode
Grounded emitter.
A kind of gas leakage automatic exhaust device as described above, base stage one end of the first triode are connected with the 4th electricity
Resistance;Base stage one end of the second described triode is connected with 3rd resistor.
Further, single-chip microcomputer signal output end is accessed after the other end parallel connection of described 3rd resistor and the 4th resistance.
A kind of gas leakage automatic exhaust device as described above, the auxiliary normally-closed contact other end of described relay and
Draw both threads after the other end parallel connection short circuit of the auxiliary normally opened contact of relay, the second described button of single line connection, one
Root line connects coil one end of A.C. contactor.
A kind of gas leakage automatic exhaust device as described above, the first described power supply use 12V DC power supply；It is described
Second source use three-phase four-wire system.
A kind of gas leakage automatic exhaust device as described above, described relay use Miniature direct current relay.
The beneficial effects of the utility model are：Natural gas leakage is worked as according to natural gas warning device, in confined space inner product
Gather the characteristics of finite concentration can trigger related switch action alarm.Using the working characteristics of electric elements switch motion, according to
Need to carry out Electric Control Design and connection, gas alarm control system and exhaust control system are organically combined,
, can be when fuel gas to be revealed and reaches finite concentration when generation fuel gas is revealed, automatic start exhaust system lets out space
Gas leak body is discharged, and reduces space gases concentration, while by alarm sound, prompt operating personnel, dropped in space gases concentration
Checked or other operations when not alarming, avoiding negligence of operation to cause to greatest extent and dodge quick-fried possibility.
Brief description of the drawings
Fig. 1 is gas leakage automatic exhaust device sound and light alarm electric operation control circuit figure；
Fig. 2 is gas leakage automatic exhaust device ventilating fan electric operation control circuit figure.
Embodiment
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings to this
The embodiment of utility model is described in detail.Elaborate many details in order to abundant in the following description
Understand the utility model.But the utility model can be to be much different from other manner described here to implement, this area
Technical staff can do similar improvement in the case of without prejudice to the utility model connotation, therefore the utility model is not by following public affairs
The limitation for the specific embodiment opened.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is simply in term used in the description of the present utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.
As shown in Figure 1 and Figure 2, a kind of gas leakage automatic exhaust device, including gas alarm device, ventilating fan, it is described
Gas alarm device be provided with sound and light alarm control circuit, described ventilating fan is provided with ventilating fan control circuit；Described acousto-optic
Alarm control circuit includes first resistor 1, second resistance 2, piezo buzzer 4, relay 3, diode 5, light emitting diode
8th, the first triode 6, the second triode 7；Described first resistor 1 is in parallel with second resistance 2, first resistor 1 and second resistance 2
One end is connected with the first power supply after parallel connection；The described other end of first resistor 1 draws two-route wire, connects described piezoelectric type all the way
The one end of buzzer 4, another way are connected to one end of the described coil of relay 3；The coil other end of described relay 3 and institute
The positive terminal of described diode 5 is linked into after the other end parallel connection for the piezo buzzer 4 stated；Described diode 5 is born
Colelctor electrode extremely with the first triode 6 is connected；The other end of described second resistance 2 and the positive terminal phase of light emitting diode 8
Even, the negative pole end of described light emitting diode 8 is connected with the colelctor electrode of the second described triode 7；Described ventilating fan control
Circuit includes the first button 11, the second button 12, A.C. contactor 13, electrothermal relay 16；Described one end of the first button 11 connects
It is connected on a phase power supply of second source；One group second of one end of the second described button 12 and described A.C. contactor 13
One end of auxiliary normally opened contact 16 is connected, and one group first of the second button 12 and the relay 3 in sound and light alarm control circuit is auxiliary
Help normally opened contact 14 in parallel, the second button 12 is connected with the other end of the first described button 11；Described A.C. contactor
The other end of 13 the second auxiliary normally opened contact 16 is connected with one group of one end of auxiliary normally-closed contact 15 of relay 3, ac contactor
The other end of the coil of device 13 is connected with the normally-closed contact of electrothermal relay 16；Another termination of normally-closed contact of described electrothermal relay 16
Enter any one phase in the other two-phase of second source.
A kind of gas leakage automatic exhaust device as described above, the first described triode 6 and the two or three described pole
The grounded emitter of pipe 7.
A kind of gas leakage automatic exhaust device as described above, base stage one end of the first triode 6 are connected with the 4th electricity
Resistance 10;Base stage one end of the second described triode 7 is connected with 3rd resistor 9.
Further, single-chip microcomputer signal output end is accessed after the other end parallel connection of the described resistance 10 of 3rd resistor 9 and the 4th.
A kind of gas leakage automatic exhaust device as described above, the auxiliary normally-closed contact 15 of described relay 3 are another
Both threads are drawn after the other end parallel connection short circuit of first auxiliary normally opened contact 14 of end and relay 3, single line connects described
Second button 12, single line connect coil one end of A.C. contactor 13.
A kind of gas leakage automatic exhaust device as described above, the first described power supply use 12V DC power supply；It is described
Second source use three-phase four-wire system.
A kind of gas leakage automatic exhaust device as described above, described relay 3 use Miniature direct current relay.
The utility model is triggered when flammable gas alarm reaches warning concentration in the sound and light alarm control circuit of alarm,
The relay 3 for being 5v or 12v by one DC voltage of circuit in parallel for connecting buzzer, connecting wire for parallel connection are connected to the line of relay 3
On circle, when the first triode of trigger switch 6, which acts, alarms, the coil of relay 3 also obtains electric simultaneously, and control relay 3 acts,
The normally closed normally opened contact on relay 3 is set to complete on-off action when obtaining electric or dead electricity.
When control circuit is connected in ventilating fan control circuit, the A.C. contactor 13 of former control ventilating fan circuit is disconnected
Normally open contact to the line of the coil one end of A.C. contactor 13, be connected to one group of normally-closed contact one end of relay 3, relay 3
One group of end of normally opened contact one is connected to the other end of the former normally open contact of A.C. contactor 13, the normally-closed contact of relay 3 and normally opened contact
The other end and connect the other end for the coil of A.C. contactor 13 for being followed by disconnection, complete control circuit be connected in parallel.
Operation principle of the present utility model：
1st, when natural gas is revealed, if spatial concentration reaches defined warning arranges value, single-chip microcomputer can give sound
One signal of light alarm control circuit, turns on transistor, is closed equivalent to switch, buzzer and light emitting diode 8 connect
Energization source, the light emitting diode 8 that flammable gas alarm carries flash.
2 at the same the external coil of relay 3 obtain electric closure, while one group of normally opened contact closure of relay 3 one group it is normal
Closed contact disconnects, and the circuit of contact portion to ventilating fan control circuit has an effect, electric current by the normally opened contact of relay 3,
A.C. contactor 13 to control ventilating fan provides power supply, and the coil of A.C. contactor 13 obtains electric closure, and the master of A.C. contactor 13 touches
Point closure, the main circuit of ventilating fan control system obtain it is electric, ventilating fan obtain it is electric start running, the leakage gas in pump drainage space.
3rd, when staff hears alarm, combustible gas warning device SR is pressed, combustible gas warning device starts
Self-test recovers, and trigger switch recovers reset condition, and the outer coil losing electricity of contact relay 3, normally-closed contact and normally opened contact recover simultaneously
To home position, control the coil of A.C. contactor 13 of ventilating fan also while dead electricity, ventilating fan are out of service.Now if leakage
Gas concentration be not reduced to the safety value of setting also, the single-chip microcomputer of flammable gas alarm can give sound and light alarm control electricity again
One, road signal, makes transistor turn on again, and buzzer and light emitting diode 8 sound and flashed again, external relay
The coil of device 3 again it is electric, the normally-closed contact and normally opened contact of relay 3 act simultaneously again, control the ac contactor of ventilating fan
The coil of device 13 again electric main contact closure, ventilating fan start again at operation.
4th, until space, leakage gas concentration is dropped to below setting value, and the single-chip microcomputer of flammable alarm controls to sound and light alarm
One signal of circuit, transistor conducting is no longer triggered, the coil losing electricity of relay 3 is stopped, the normally-closed contact of relay 3
Closure is resetted, normally opened contact, which resets, to be disconnected, and controls the coil losing electricity of A.C. contactor 13 of ventilating fan to disconnect, A.C. contactor 13
Main contacts and auxiliary contact simultaneously switch off, and ventilating fan power-off is out of service, complete aperture vents.
5th, staff presses combustible gas warning device SR, and combustible gas warning device, which returns to, treats alert operation shape
State.
The device is enterprising in multi-purpose station heating furnace hilllock oil-firing pump house flammable gas alarm and room ventilating fan control circuit
Row line connection is implemented, by revealing gas test, electric wiring and equipment by circuit operation is designed in combustible gas probe, instead
Should be sensitive, detection process is normal, positive effect.It is real that the circuit design effectively improves using for flammable gas alarm device
Effect, the safe working environment of operation employee is improved, ensured the life of operation employee and the safety of national wealth, while also have
Effect reduce operation employee be not intended to operate when danger, avoid dodge it is quick-fried caused by casualties and property loss, simultaneously
Also electric energy has effectively been saved.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (7)
1. a kind of gas leakage automatic exhaust device, including gas alarm device, ventilating fan, described gas alarm device are set
Acousto-optic alarm control circuit, described ventilating fan are provided with ventilating fan control circuit, it is characterised in that：
Described sound and light alarm control circuit includes first resistor, second resistance, piezo buzzer, relay, diode, hair
Optical diode, the first triode, the second triode；Described first resistor is in parallel with second resistance, first resistor and the second electricity
One end is connected with the first power supply after resistance is in parallel；The described first resistor other end draws two-route wire, connects described piezoelectricity all the way
Formula buzzer one end, another way are connected to one end of described relay coil；The coil other end of described relay and institute
The positive terminal of described diode is linked into after the other end parallel connection for the piezo buzzer stated；The negative pole end of described diode
It is connected with the colelctor electrode of the first triode；The other end of described second resistance is connected with the positive terminal of light emitting diode, described
The negative pole end of light emitting diode be connected with the colelctor electrode of the second described triode；
Described ventilating fan control circuit includes the first button, the second button, A.C. contactor, electrothermal relay；Described first
Button one end is connected on a phase power supply of second source；One end of the second described button and the one of described A.C. contactor
One end of group auxiliary normally opened contact is connected, and one group of auxiliary of the second button and the relay in sound and light alarm control circuit is normally opened tactile
Point is in parallel, and the second button is connected with the other end of the first described button；The auxiliary normally opened contact of described A.C. contactor
The other end be connected with one group of auxiliary normally-closed contact one end of relay, the other end of ac contactor coil and electrothermal relay
Normally-closed contact is connected；It is any one in the other two-phase of the normally-closed contact other end access second source of described electrothermal relay
Phase.
A kind of 2. gas leakage automatic exhaust device according to claim 1, it is characterised in that：The first described triode
With the grounded emitter of the second described triode.
A kind of 3. gas leakage automatic exhaust device according to claim 1, it is characterised in that：The base stage of first triode
One end is connected with the 4th resistance;Base stage one end of the second described triode is connected with 3rd resistor.
A kind of 4. gas leakage automatic exhaust device according to claim 3, it is characterised in that：Described 3rd resistor and
Single-chip microcomputer signal output end is accessed after the other end parallel connection of 4th resistance.
A kind of 5. gas leakage automatic exhaust device according to claim 1, it is characterised in that：Described relay it is auxiliary
Both threads, single line connection are drawn after helping the other end parallel connection short circuit of the auxiliary normally opened contact of the normally-closed contact other end and relay
The second described button, single line connect coil one end of A.C. contactor.
A kind of 6. gas leakage automatic exhaust device according to claim 1, it is characterised in that：The first described power supply is adopted
With 12V DC power supply；Described second source uses three-phase four-wire system.
A kind of 7. gas leakage automatic exhaust device according to claim 1, it is characterised in that：Described relay uses
Miniature direct current relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720351164.8U CN207082208U (en) | 2017-04-06 | 2017-04-06 | A kind of gas leakage automatic exhaust device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720351164.8U CN207082208U (en) | 2017-04-06 | 2017-04-06 | A kind of gas leakage automatic exhaust device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207082208U true CN207082208U (en) | 2018-03-09 |
Family
ID=61427493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720351164.8U Expired - Fee Related CN207082208U (en) | 2017-04-06 | 2017-04-06 | A kind of gas leakage automatic exhaust device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207082208U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186102A (en) * | 2018-09-05 | 2019-01-11 | 深圳市建筑设计研究总院有限公司 | The inter-linked controlling method and control circuit of exhaust blower and gas electric valve |
| CN112325443A (en) * | 2020-09-27 | 2021-02-05 | 中广核工程有限公司 | Emergency exhaust method, system, computer equipment and storage medium |
| CN114797396A (en) * | 2021-01-22 | 2022-07-29 | 中国石油化工股份有限公司 | Method for treating hydrocarbon combustible gas and hydrogen sulfide gas in underground closed space |
-
2017
- 2017-04-06 CN CN201720351164.8U patent/CN207082208U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186102A (en) * | 2018-09-05 | 2019-01-11 | 深圳市建筑设计研究总院有限公司 | The inter-linked controlling method and control circuit of exhaust blower and gas electric valve |
| CN112325443A (en) * | 2020-09-27 | 2021-02-05 | 中广核工程有限公司 | Emergency exhaust method, system, computer equipment and storage medium |
| CN112325443B (en) * | 2020-09-27 | 2021-08-31 | 中广核工程有限公司 | Emergency exhaust method, system, computer equipment and storage medium |
| CN114797396A (en) * | 2021-01-22 | 2022-07-29 | 中国石油化工股份有限公司 | Method for treating hydrocarbon combustible gas and hydrogen sulfide gas in underground closed space |
| CN114797396B (en) * | 2021-01-22 | 2023-06-06 | 中国石油化工股份有限公司 | Treatment method of hydrocarbon combustible gas and hydrogen sulfide gas in underground closed space |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207082208U (en) | A kind of gas leakage automatic exhaust device | |
| CN201528224U (en) | High-tension line electrified detecting and locking device | |
| CN102423518B (en) | Fire protection method of electrical device and protective device thereof | |
| CN202333750U (en) | Combustible gas alarming outage device | |
| CN208904335U (en) | A kind of Intelligent safety socket | |
| CN212874961U (en) | Safe power consumption intelligence picture peg based on internet of things | |
| CN201717602U (en) | Noise-proof type anti-electric touch and anti-overheating protector of electric water heater | |
| CN206479835U (en) | The automatic testing equipment of toilet bowl top cover connecting plate display drive control circuit | |
| CN202303955U (en) | Gas water heater with function of monitoring and alarming harmful gas and temperature | |
| CN101749468B (en) | Communication equipment room waterproof system | |
| CN205751163U (en) | A kind of domestic gas alarm protecting apparatus | |
| CN208401208U (en) | Safety socket | |
| CN107769158A (en) | A kind of safe leakage protection circuit | |
| CN101782275B (en) | Noise-type electric shock preventing and dry burning protecting device of electric water heater | |
| CN212060966U (en) | Safety master control system | |
| CN206432694U (en) | Earth leakage protective device | |
| CN214953995U (en) | Power supply product input short circuit detection device used before strong current test | |
| CN210297233U (en) | Forced grounding detection protection device for electric equipment | |
| CN115297300A (en) | Video linkage system and application method | |
| CN112462255B (en) | Device for monitoring electric equipment | |
| CN209844117U (en) | Intelligent socket with lightning protection function | |
| CN204442860U (en) | Cold press electrical control cabinet | |
| CN209327486U (en) | A kind of detection device reducing fire risk applied to estate management | |
| CN207689609U (en) | A kind of electrical grounding monitoring device | |
| CN207320810U (en) | A kind of safe leakage protection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180309 Termination date: 20190406 |