CN203490552U - Combustible gas automatic rarefaction device - Google Patents
Combustible gas automatic rarefaction device Download PDFInfo
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- CN203490552U CN203490552U CN201320600312.7U CN201320600312U CN203490552U CN 203490552 U CN203490552 U CN 203490552U CN 201320600312 U CN201320600312 U CN 201320600312U CN 203490552 U CN203490552 U CN 203490552U
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- combustible gas
- solenoid valve
- dilution device
- automatic dilution
- ventilation unit
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Abstract
The utility model discloses a combustible gas automatic rarefaction device. The combustible gas automatic rarefaction device is characterized in that the combustible gas automatic rarefaction device comprises a combustible gas detector, a ventilation device, and a controller connected with the combustible gas detector and the ventilation device, the controller receives a combustible gas concentration signal emitted from the combustible gas detector, and the controller emits a control signal controlling the ventilation device for ventilation to the ventilation device when the combustible gas concentration exceeds a setting threshold. By employing the combustible gas automatic rarefaction device, accidents, such as fire hazards, explosions and the like, due to over-high combustible gas concentration can be well prevented, the automation degree is high, operators do not need to watch over, and safety risks of the operators are reduced.
Description
Technical field
The utility model relates to safety technique field, particularly relates to a kind of inflammable gas automatic dilution device.
Background technology
When combustable gas concentration surpasses certain limit, need to ventilate, exhaust, so that inflammable gas is diluted, prevent the accidents such as on fire, blast.
In the prior art, conventionally easily occurring that position or place that combustable gas concentration is too high arrange combustible gas probe, arrange an alarm being connected with described combustible gas probe in addition again.When the concentration that inflammable gas detected at combustible gas probe surpasses setting threshold, alarm is sounded and/or light warning.Operating personnel, after receiving described alerting signal, open the ventilation unit such as ventilating fan, pressed gas valve, ventilate, and reduce thus the concentration of inflammable gas.
This kind of mode can avoid occurring the accidents such as too high on fire, the blast causing of combustable gas concentration preferably.But also there is shortcoming below: 1. automaticity is not high, need manually on duty; 2. there is certain security risk in operating personnel.
Therefore, wish the above-mentioned shortcoming that a kind of inflammable gas automatic dilution device overcomes or at least alleviate prior art.
Utility model content
The purpose of this utility model is to provide a kind of inflammable gas automatic dilution device to overcome or at least alleviate the above-mentioned shortcoming of prior art.
For achieving the above object, the utility model provides a kind of inflammable gas automatic dilution device, described inflammable gas automatic dilution device comprises combustible gas probe, ventilation unit and the controller being connected with ventilation unit with this combustible gas probe, described controller receives the signal that represents combustable gas concentration that described combustible gas probe sends, and to described ventilation unit, sends and control the control signal that described ventilation unit ventilates when combustable gas concentration surpasses setting threshold.
Preferably, described ventilation unit comprises electrically ventilating fan.
Preferably, described ventilation unit comprises solenoid valve, and described solenoid valve is normally close valve, and its upstream is communicated with pressure air source, and downstream is communicated with exhausr port or gas outlet.
Preferably, described inflammable gas automatic dilution device further comprises relay, and described controller is controlled the connecting and disconnecting in the relay coil work loop of described relay; The switch of described relay is connected with described solenoid valve.
Preferably, the operating voltage of the relay coil of described relay is alternating current 220V; The operating voltage of described solenoid valve is direct current 24V.
Preferably, described solenoid valve is explosion-proof solenoid valve.
Preferably, on the tube wall of described gas outlet, having a plurality of diameters is the hole of 6 millimeters.
Preferably, the internal diameter of described gas outlet is more than or equal to 10 millimeters.
Inflammable gas automatic dilution device of the present utility model can avoid occurring the accidents such as too high on fire, the blast causing of combustable gas concentration preferably, and automaticity is high, need not be manually on duty; In addition, also reduced operating personnel's security risk.
Accompanying drawing explanation
Fig. 1 is according to the illustrative diagram of the inflammable gas automatic dilution device of the utility model one embodiment.
Fig. 2 is according to the schematic pneumatic diagram of the inflammable gas automatic dilution device of the utility model one embodiment.
Reference numeral:
| 1 | Combustible gas probe | 5 | |
| 2 | Controller | 6 | |
| 3 | Solenoid valve | 7 | |
| 4 | |
8 | Gas outlet |
Embodiment
For object, technical scheme and advantage that the utility model is implemented are clearer, below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Described embodiment is the utility model part embodiment, rather than whole embodiment.Below by the embodiment being described with reference to the drawings, be exemplary, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as the restriction to the utility model protection domain.
Fig. 1 is according to the illustrative diagram of the inflammable gas automatic dilution device of the utility model one embodiment.Fig. 2 is according to the schematic pneumatic diagram of the inflammable gas automatic dilution device of the utility model one embodiment.
Inflammable gas automatic dilution device shown in Fig. 1 and Fig. 2 comprises: combustible gas probe 1 and ventilation unit, described ventilation unit is associated with described combustible gas probe 1, when described combustible gas probe 1 detects combustable gas concentration over setting threshold, trigger described ventilation unit energising operation, ventilate.
Combustible gas probe (also can be called combustable gas concentration alarm) is for surveying the concentration of the inflammable gas of desired location.Described combustible gas probe detects combustable gas concentration and sends the signal that represents combustable gas concentration.The described signal that represents combustable gas concentration can mean the signal of the concrete numerical value of combustable gas concentration, the signal whether concentration that also can mean inflammable gas surpass setting threshold (for example, in one embodiment, combustible gas probe sends signal specific when combustable gas concentration being detected over setting threshold, for example, the voltage of combustible gas probe output port is set as to particular value).Aforementioned signal can be both simulating signal, can be also digital signal; Be generally current signal, but also can be voltage signal.In addition, described combustible gas probe sends signal by wired mode conventionally, but also can adopt the combustible gas probe that sends signal by wireless mode.In addition, can also adopt and can send in wired and wireless two kinds of modes the combustible gas probe of signal.Described signal can also be to make a switch connection or disconnection, makes thus ventilation unit energising or power-off.
Described inflammable gas can be methane, ethane, propane, butane, pentane, hexane, heptane, octane, ethene, propylene, butylene, amylene, hexene, octene, trimethylene, cyclohexane, cyclohexene, firpene benzene, toluene, dimethylbenzene, methyl alcohol, ethanol, propyl alcohol, isobutyl alcohol, dimethylamine, trimethylamine, pyridine dimethyl ether, ether, vinethene, oxirane, tetrahydrofuran, dioxane acetone, butanone pentanone, heptanone, one or more in the inflammable gass such as methyl isobutyl ketone.
In the utility model, ventilation unit be for specific region is ventilated, the device of the effect such as ventilation or exhaust.In illustrated embodiment, ventilation unit comprises upstream air pipe 7, gas outlet 8 and is arranged on the solenoid valve 3 between upstream air pipe 7, gas outlet 8.Solenoid valve 3 is normally close valve, and its upstream is by upstream air pipe 7 or be directly communicated with pressure air source, and downstream is by gas outlet 8 or be directly communicated with needing airspace.Thereby when combustible gas probe 1 detects combustable gas concentration over setting threshold, connect with the solenoid valve energising of combustible gas probe 1 signal communication, by the air venting of pressure air source to the too high space of combustable gas concentration, automatic dilution inflammable gas.Advantageously, solenoid valve 3 is explosion-proof solenoid valve, thereby can reduce the possibility that solenoid valve failure or blast cause flammable gas explosion.
Explosion-proof solenoid valve refers to that the parts that solenoid valve may be lighted to explosive gas mixture are all enclosed in a shell, its shell can bear by any composition surface of shell or structure interval, be penetrated into flammable mixtures portion's blast in the enclosure of enclosure and do not damage shell, and can not cause lighting of the outside explosive atmosphere being formed by a kind of, multiple gases or steam, the parts that may produce spark, electric arc and dangerous temperature are all put into flameproof enclosure, and flameproof enclosure separates device interior space and environment around.
In order to be conducive to Quick air-discharge, dilute, for example can on the tube wall of gas outlet 8, offer a plurality of diameters, for being greater than hole or the hole of 3 millimeters (6 millimeters).Also can offer the exhaust notch of various shapes.In addition, preferably, the internal diameter of gas outlet 8 is more than or equal to 10 millimeters, for example, be 12 millimeters, or 15 millimeters, 20 millimeters etc.
It is pointed out that ventilation unit can also be other devices such as electrically ventilating fan, electrical exhaust fan, if can be used in to specific region ventilate, ventilation or exhaust.
Referring to Fig. 1, the inflammable gas automatic dilution device of the present embodiment further comprises controller 2.Controller 2 is electrically connected to combustible gas probe 1 and described ventilation unit, and when described combustible gas probe detects combustable gas concentration over setting threshold, described controller makes described ventilation unit energising operation.Described controller can be independent unit, also can integrate with other controllers; Even can also integrate with combustible gas probe or solenoid valve.
More specifically, 2 pairs of gauge tap 6 of controller are controlled, and then the energising of pilot relay coil 4 whether.5 connection and the disconnections of controlling solenoid valve loop of relay switch that are associated with relay coil 4.Controller 2 can be realized the control whether solenoid valve is switched on thus, and then controls the concentration of whether particular space being ventilated to reduce inflammable gas.
Referring to Fig. 1, the operating voltage of relay coil 4 is alternating current 220V; The operating voltage of solenoid valve 3 is direct current 24V.The operating voltage of solenoid valve 3 is direct current 24V, produces the danger that spark causes blast while being conducive to reduce solenoid valve 3 action.But described operating voltage can arrange as required, and is not limited to illustrated magnitude of voltage.
For example, combustible gas probe (or detector probe) is installed in position that can combustable gas concentration may be higher in workshop, at shop office, controller and combustable gas concentration alarm is installed.Automatically dilute on the one hand, send on the one hand warning.
In one embodiment, detector is with switch, in the concentration detecting during higher than setting threshold, and described switch connection, otherwise disconnect.This switch can directly connect with ventilation unit and the energising of controlling ventilation unit whether.In this embodiment, described switch can be regarded controller as, makes the various signals of switch connection or action can regard the signal that represents combustable gas concentration that combustible gas probe sends as.
Finally it is to be noted: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit.Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (8)
1. an inflammable gas automatic dilution device, it is characterized in that, comprise combustible gas probe, ventilation unit and the controller being connected with ventilation unit with this combustible gas probe, described controller receives the signal that represents combustable gas concentration that described combustible gas probe sends, and to described ventilation unit, sends and control the control signal that described ventilation unit ventilates when combustable gas concentration surpasses setting threshold.
2. inflammable gas automatic dilution device as claimed in claim 1, is characterized in that, described ventilation unit comprises electrically ventilating fan.
3. inflammable gas automatic dilution device as claimed in claim 1, is characterized in that, described ventilation unit comprises solenoid valve, and described solenoid valve is normally close valve, and its upstream is communicated with pressure air source, and downstream is communicated with exhausr port or gas outlet.
4. inflammable gas automatic dilution device as claimed in claim 3, is characterized in that, further comprises relay, and described controller is controlled the connecting and disconnecting in the relay coil work loop of described relay; The switch of described relay is connected with described solenoid valve.
5. inflammable gas automatic dilution device as claimed in claim 4, is characterized in that, the operating voltage of the relay coil of described relay is alternating current 220V; The operating voltage of described solenoid valve is direct current 24V.
6. inflammable gas automatic dilution device as claimed in claim 3, is characterized in that, described solenoid valve is explosion-proof solenoid valve.
7. inflammable gas automatic dilution device as claimed in claim 3, is characterized in that, has a plurality of diameters and be the hole of 6 millimeters on the tube wall of described gas outlet.
8. inflammable gas automatic dilution device as claimed in claim 7, is characterized in that, the internal diameter of described gas outlet is more than or equal to 10 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600312.7U CN203490552U (en) | 2013-09-25 | 2013-09-25 | Combustible gas automatic rarefaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600312.7U CN203490552U (en) | 2013-09-25 | 2013-09-25 | Combustible gas automatic rarefaction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203490552U true CN203490552U (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320600312.7U Expired - Fee Related CN203490552U (en) | 2013-09-25 | 2013-09-25 | Combustible gas automatic rarefaction device |
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|---|---|
| CN (1) | CN203490552U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115335140A (en) * | 2020-04-16 | 2022-11-11 | 爱德华兹有限公司 | Dilution of combustible gases |
-
2013
- 2013-09-25 CN CN201320600312.7U patent/CN203490552U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115335140A (en) * | 2020-04-16 | 2022-11-11 | 爱德华兹有限公司 | Dilution of combustible gases |
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| 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: 20140319 Termination date: 20180925 |