CN203240613U - Ignition safety device - Google Patents
Ignition safety device Download PDFInfo
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- CN203240613U CN203240613U CN 201320211452 CN201320211452U CN203240613U CN 203240613 U CN203240613 U CN 203240613U CN 201320211452 CN201320211452 CN 201320211452 CN 201320211452 U CN201320211452 U CN 201320211452U CN 203240613 U CN203240613 U CN 203240613U
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- pressure
- igniter
- fuel gas
- ignition safety
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Abstract
The utility model provides an ignition safety device and belongs to the technical field of heating furnaces. The ignition safety device solves the problem that an existing ignition device of a heating furnace is low in safety. The ignition safety device comprises a fuel gas source, an air source and an igniter, wherein the output end of the fuel gas source is communicated with the igniter through a fuel gas delivery pipe, and the output end of the air source is communicated with the igniter through an air delivery pipe. The ignition safety device further comprises a control circuit, a pressure detection unit and a solenoid valve, wherein the pressure detection unit and the solenoid valve are sequentially connected to the fuel gas delivery pipe arranged between the fuel gas source and the igniter, the pressure detection unit can detect the pressure of fuel gas in the fuel gas delivery pipe, the solenoid valve can control the opening and the closing of the fuel gas delivery pipe, both the pressure detection unit and the solenoid valve are connected with the control circuit, the control circuit can receive a fuel gas pressure signal sent by the pressure detection unit, and the control circuit sends a control signal to control the solenoid valve to close the fuel gas delivery pipe when the fuel gas pressure signal exceeds a preset range. The ignition safety device has the advantage of being high in usage safety.
Description
Technical field
The utility model belongs to the heating furnace technical field, relates to a kind of ignition safety device, relates in particular to a kind of ignition safety device that is applied on the heating furnace.
Background technology
Heating furnace is that the blowtorch in the heating furnace and igniter are the important component parts in the heating furnace with the equipment of material or workpiece heating, and wherein, blowtorch is used for the material in the heating furnace or workpiece are heated, and igniter is used to the work of blowtorch to light a fire.In the course of work of igniter, need constantly for it provides fuel, its fuel is mainly the mixture of combustion gas and air.
The structure of existing igniter generally comprises air-source, fuel gas source and igniter, and it directly is connected to the combustion gas output of the air output of air-source and fuel gas source the igniter place by pipeline and mixes and burn.When needing work, open fuel gas source and air-source, make it to igniter place difference delivery of fuel gas and air, when needs stop to light a fire, close fuel gas source and air-source, the fuel supply discontinuity of igniter is namely quit work.
But, in the process that igniter is used, when not enough or disposable output combustion gas is too much when the combustion gas of fuel gas source, operating personnel can't in time understand the combustion gas situation, cause operating untimely, and then so that the fuel gas buring at igniter place is insufficient, cause energy waste, even may because of the mixed proportion of air and combustion gas not to causing blast.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist for prior art, has proposed a kind of ignition safety device that combustion gas is carried that in time stops can exceeding the safe pressure scope at the pressure that combustion gas is carried the time.
The purpose of this utility model can realize by following technical proposal:
A kind of ignition safety device, comprise fuel gas source, air-source and igniter, the output of described fuel gas source and air-source is communicated to above-mentioned igniter place by gas supply pipe and air delivery pipe respectively, it is characterized in that, described ignition safety device also comprises control circuit and is connected in successively the pressure sensing cell that can detect the gaseous-pressure in the gas supply pipe on the gas supply pipe between above-mentioned fuel gas source and the igniter and can controls the magnetic valve of gas supply pipe break-make, and the gaseous-pressure signal that described pressure sensing cell all is connected with above-mentioned control circuit with magnetic valve and this control circuit can receive above-mentioned pressure sensing cell transmission also transmits control signal when this gaseous-pressure signal exceeds setting range and controls above-mentioned closed electromagnetic valve gas supply pipe.
During the work of this ignition safety device, magnetic valve is in opening, combustion gas flows to igniter from fuel gas source output and along gas supply pipe through magnetic valve, and air flows to igniter from air-source output and along air delivery pipe, and air and combustion gas mix in igniter and in the firing tip ignition of igniter and keep fired state.In the course of work of this igniter, pressure sensing cell detects the gaseous-pressure in the gas supply pipe in real time, when the pressure of its output is lower than the safe pressure scope or is higher than the safe pressure scope, control circuit receives the gaseous-pressure signal of pressure sensing cell transmission and transmits control signal and cuts out to control it to magnetic valve, block gas supply pipe, then igniter quits work because of the fuel supply discontinuity.
In above-mentioned ignition safety device, described pressure sensing cell comprises the pressure switch one that is provided with the safe pressure higher limit and the pressure switch two that is provided with the safe pressure lower limit, and described pressure switch one and pressure switch two all are arranged at above-mentioned gas supply pipe place.When gaseous-pressure was higher than the higher limit of safe pressure, pressure switch one sent corresponding gaseous-pressure signal to control circuit; When gaseous-pressure was lower than the lower limit of safe pressure, pressure switch two sent corresponding gaseous-pressure signal to control circuit.
As another kind of situation, in above-mentioned ignition safety device, described pressure sensing cell is the pressure sensor that is arranged in the above-mentioned gas supply pipe.Similarly, also can detect gaseous-pressure in the gas supply pipe by pressure sensor, and the gaseous-pressure signal is sent to control circuit process.
In above-mentioned ignition safety device, also be connected with Pressure gauge on the described gas supply pipe.At gas supply pipe Pressure gauge handled easily personnel being set observes.
In above-mentioned ignition safety device, also be connected with the filter of the combustion gas that can filter fuel gas source output on the gas supply pipe between described fuel gas source and the above-mentioned pressure sensing cell.Just flow to igniter after the combustion gas of fuel gas source output filters out impurities through filter and burn, safe.
In above-mentioned ignition safety device, also be connected with pressure-reducing valve between described filter and the above-mentioned magnetic valve.Will be through the gas pressure regulation that filters in required scope by pressure-reducing valve, break down and cause gaseous-pressure undesired such as pressure-reducing valve, this ignition safety device can in time stop the conveying of combustion gas equally, so that user's maintenance and replacing.
In above-mentioned ignition safety device, also be connected with the power switch that can start or close ignition safety device and the ignition switch that can control the duty of above-mentioned igniter on the described control circuit.
In above-mentioned ignition safety device, described fuel gas source is fuel cartridge.
In above-mentioned ignition safety device, described air-source is blower fan.
In above-mentioned ignition safety device, also be connected with on the described control circuit and can control the ignition switch that above-mentioned igniter starts or cuts out.When the user finds the firing tip of delivery air igniter to mix at the igniter place not during ignition of solenoid valve conduction and air-source, can operate again initial igniter igniting of ignition switch, the unsafe condition of avoiding igniter place air and combustion gas output but not light a fire.Do not light a fire yet such as igniter, but user's manual-lock magnetic valve is to stop gas supply.
As another kind of situation, in above-mentioned ignition safety device, described igniter place also has the detecting unit that can detect its combustion gas feed status and fired state, and described detecting unit is connected with above-mentioned control circuit.When detecting unit detects that combustion gas has been delivered to the igniter place and when do not light a fire in the igniter place, but control circuit automatic control electric magnet valve is closed gas supply pipe, guarantees the safety of igniting.Here, detecting unit can comprise for detection of the baroceptor of the air pressure of the combustion gas input of igniter and for detection of the temperature sensor of the temperature of the firing tip of igniter.
Compared with prior art, this ignition safety device detects the gaseous-pressure of fuel gas source output by pressure switch one and pressure switch two are set, when gaseous-pressure exceeds the safe handling scope, can cut off combustion gas by control circuit automatic control electric magnet valve and carry, energy utilization rate and safety in utilization are higher.
Description of drawings
Fig. 1 is the structural representation of this ignition safety device.
Fig. 2 is the theory structure block diagram of this ignition safety device
Among the figure, 1, fuel gas source; 2, igniter; 3, gas supply pipe; 4, air delivery pipe; 5, control circuit; 6, pressure sensing cell; 61, pressure switch one; 62, pressure switch two; 7, magnetic valve; 8, Pressure gauge; 9, filter; 10, pressure-reducing valve; 11, power switch; 12, ignition switch; 13, blower fan.
The specific embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1 and Figure 2, this ignition safety device comprises control circuit 5, air-source, igniter 2 and the fuel gas source 1 that connects successively by gas supply pipe 3, filter 9, pressure-reducing valve 10 and magnetic valve 7.Wherein, the drive circuit of magnetic valve 7 is connected with control circuit 5, and its output is connected by the input of gas supply pipe 3 with igniter 2; The output of air-source is connected by the input of air delivery pipe 4 with igniter 2; Also be provided with the pressure sensing cell 6 and Pressure gauge 8 of the gaseous-pressure in the energy detector tube on the gas supply pipe 3 between magnetic valve 7 and the pressure-reducing valve 10.In the present embodiment, air-source is blower fan 13, and the drive circuit of blower fan 13 is connected with control circuit 5; Fuel gas source 1 is fuel cartridge; Pressure sensing cell 6 comprises that the pressure switch 1 that is provided with the safe pressure higher limit all is connected with control circuit 5 with pressure switch 2 62 with the pressure switch 2 62 that is provided with the safe pressure lower limit and pressure switch 1.
Personnel control in real time for handled easily, also be connected with a guidance panel on the control circuit 5, have display screen on this guidance panel and can start or close the power switch 11 of this ignition safety device and the ignition switch 12 of the duty of energy control point firearm 2.
During the work of this ignition safety device, press power switch 11 with its startup by operating personnel, magnetic valve 7 is in opening, and combustion gas can flow to igniter 2 through the filtration of filter 9, the magnetic valve 7 that the pressure of pressure-reducing valve 10 is regulated and opened successively from fuel cartridge output and along gas supply pipe 3.Simultaneously, control circuit 5 transmits control signal the drive circuit of fan 13 driving blower fan 13 work, and extracting air also flows to igniter 2 along air delivery pipe 4.Control circuit 5 control point firearm 2 igniting that transmits control signal is lighted in igniter 2 mixed air and combustion gas and is kept this fired state at the firing tip of igniter 2, for the work of the blowtorch in the heating furnace continues to provide naked light.The firing tip that the user finds igniter when showing screen display solenoid valve conduction, fan starting work and delivery air is not during ignition, can press ignition switch with the igniting of initial igniter again, the mixture of avoiding the output combustion gas of igniter place and air is the dangerous working condition of ignition not but.
In the course of work of this ignition safety device, pressure switch 1 and pressure switch 2 62 detect the gaseous-pressure in the gas supply pipe 3 in real time, when this gaseous-pressure was higher than the safe pressure higher limit, pressure switch 1 sent corresponding gaseous-pressure signal to control circuit 5; When gaseous-pressure was lower than the lower limit of safe pressure, pressure switch 2 62 sent corresponding gaseous-pressure signal to control circuit 5.After control circuit 5 receives the gaseous-pressure signal of pressure switch 1 or pressure switch 2 62 transmissions, transmit control signal and close with control magnetic valve 7 to the drive circuit of magnetic valve 7, block gas supply pipe 3, then igniter 2 quits work because of the fuel supply discontinuity.Simultaneously, control circuit 5 can send corresponding information to the display screen on the guidance panel showing, alert checks whether combustion gas is not enough, perhaps pressure-reducing valve 10 breaks down etc., so that operating personnel's on-call maintenance.At this moment, be connected in equally the gaseous-pressure situation that also shows on the Pressure gauge 8 on the gas supply pipe 3 between pressure-reducing valve 10 and the magnetic valve 7 in the gas supply pipe 3, operating personnel can get information about gaseous-pressure.
Pressure switch 1 and pressure switch 2 62 in this ignition safety device all adopt electronic pressure switch, have the fast characteristics of high accuracy, high stability and response, certainly, also pressure switch 1 and pressure switch 2 62 can be replaced with common pressure sensor.Similarly, also can detect in real time gaseous-pressure in the gas supply pipe 3 by pressure sensor, and the gaseous-pressure signal is sent to control circuit 5 process.
In addition, need to be by observing the situation that igniter is not lighted a fire of finding with respect to above-mentioned user, the igniter place also can be provided with the combustion gas feed status that can detect this place and the detecting unit of fired state, and this detecting unit can comprise for detection of the baroceptor of the air pressure of the combustion gas input of igniter and for detection of the temperature sensor of the temperature of the firing tip of igniter.When detecting unit detects that combustion gas has been delivered to the igniter place and when the firing tip of igniter is not lighted a fire, but control circuit automatic control electric magnet valve is closed gas supply pipe, guarantees the safety of igniting.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (10)
1. ignition safety device, comprise fuel gas source (1), air-source and igniter (2), the output of described fuel gas source (1) and air-source is communicated to above-mentioned igniter (2) by gas supply pipe (3) and air delivery pipe (4) respectively and locates, it is characterized in that, described ignition safety device also comprise control circuit (5) and be connected in successively above-mentioned fuel gas source (1) and igniter (2) between gas supply pipe (3) on the pressure sensing cell (6) that can detect the gaseous-pressure in the gas supply pipe (3) and can control the magnetic valve (7) of gas supply pipe (3) break-make, the gaseous-pressure signal that described pressure sensing cell (6) all is connected with above-mentioned control circuit (5) with magnetic valve (7) and this control circuit (5) can receive above-mentioned pressure sensing cell (6) transmission also transmits control signal when this gaseous-pressure signal exceeds setting range and controls above-mentioned magnetic valve (7) and close gas supply pipe (3).
2. ignition safety device according to claim 1, it is characterized in that, described pressure sensing cell (6) comprises the pressure switch one (61) that is provided with the safe pressure higher limit and the pressure switch two (62) that is provided with the safe pressure lower limit, and described pressure switch one (61) and pressure switch two (62) all are arranged at above-mentioned gas supply pipe (3) and locate.
3. ignition safety device according to claim 1 is characterized in that, described pressure sensing cell (6) is for being arranged at the pressure sensor in the above-mentioned gas supply pipe (3).
4. according to claim 1 and 2 or 3 described ignition safety devices, it is characterized in that, also be connected with Pressure gauge (8) on the described gas supply pipe (3).
5. according to claim 1 and 2 or 3 described ignition safety devices, it is characterized in that, also be connected with the filter (9) of the combustion gas that can filter fuel gas source (1) output on the gas supply pipe (3) between described fuel gas source (1) and the above-mentioned pressure sensing cell (6).
6. ignition safety device according to claim 5 is characterized in that, also is connected with pressure-reducing valve (10) between described filter (9) and the above-mentioned magnetic valve (7).
7. according to claim 1 and 2 or 3 described ignition safety devices, it is characterized in that, also be connected with the ignition switch (12) of the power switch (11) that can start or close ignition safety device and the duty that can control above-mentioned igniter (2) on the described control circuit (5).
8. according to claim 1 and 2 or 3 described ignition safety devices, it is characterized in that, described air-source is blower fan (13).
9. according to claim 1 and 2 or 3 described ignition safety devices, it is characterized in that, also be connected with on the described control circuit and can control the ignition switch that above-mentioned igniter starts or cuts out.
10. according to claim 1 and 2 or 3 described ignition safety devices, it is characterized in that, described igniter place also has the detecting unit that can detect its combustion gas feed status and fired state, and described detecting unit is connected with above-mentioned control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320211452 CN203240613U (en) | 2013-04-23 | 2013-04-23 | Ignition safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320211452 CN203240613U (en) | 2013-04-23 | 2013-04-23 | Ignition safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203240613U true CN203240613U (en) | 2013-10-16 |
Family
ID=49317905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320211452 Withdrawn - After Issue CN203240613U (en) | 2013-04-23 | 2013-04-23 | Ignition safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203240613U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185352A (en) * | 2013-04-23 | 2013-07-03 | 台州英达机械科技有限公司 | Ignition safety device |
| CN108507249A (en) * | 2017-02-24 | 2018-09-07 | 进得展有限公司 | Refrigeration method, refrigeration device and temperature control module thereof |
| CN112774456A (en) * | 2020-12-18 | 2021-05-11 | 武汉艾科滤膜技术有限公司 | Gas detection device and method for ultrafiltration membrane |
-
2013
- 2013-04-23 CN CN 201320211452 patent/CN203240613U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185352A (en) * | 2013-04-23 | 2013-07-03 | 台州英达机械科技有限公司 | Ignition safety device |
| CN108507249A (en) * | 2017-02-24 | 2018-09-07 | 进得展有限公司 | Refrigeration method, refrigeration device and temperature control module thereof |
| CN112774456A (en) * | 2020-12-18 | 2021-05-11 | 武汉艾科滤膜技术有限公司 | Gas detection device and method for ultrafiltration membrane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131016 Effective date of abandoning: 20150527 |
|
| RGAV | Abandon patent right to avoid regrant |