CN203810437U - Modified furnace ignition leakage detecting equipment - Google Patents
Modified furnace ignition leakage detecting equipment Download PDFInfo
- Publication number
- CN203810437U CN203810437U CN201420243425.0U CN201420243425U CN203810437U CN 203810437 U CN203810437 U CN 203810437U CN 201420243425 U CN201420243425 U CN 201420243425U CN 203810437 U CN203810437 U CN 203810437U
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- pressure switch
- pneumatic operated
- operated valve
- valve
- gas
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Abstract
The utility model relates to gas leakage detecting equipment, in particular to modified furnace ignition leakage detecting equipment. The modified furnace ignition leakage detecting equipment is characterized in that a first pneumatic valve is connected with a furnace-entry gas pipeline, a second pneumatic valve is connected with a gas intake pipeline, and a gas pup joint is connected between the first pneumatic valve and the second pneumatic valve; a first pressure switch is connected on the furnace-entry gas pipeline, a second pressure switch and a pressure gauge are connected on the gas pup joint, and a third pressure switch is connected on the gas intake pipeline; the first pneumatic valve, the second pneumatic valve, the first pressure switch, the second pressure switch and the third pressure switch are respectively connected with an ignition controller through an instrument line. The modified furnace ignition leakage detecting equipment has the advantages that by the aid of the pneumatic valves, furnace ignition failure due to the facts that dry gas is unpurified, a valve spool is thereby blocked and the valve consequently leaks inside is solved, and the equipment is safe and stable to operate; by the pressure gauge, operators can more visually judge whether the pneumatic valves leak or not; the valve spool is a polytetrafluoroethylene valve spool, sealing effect is better, and problem that a sealing surface of an electromagnetic valve is corrosive is effectively solved.
Description
Technical field
The utility model relates to gas leakage equipment, relates in particular to a kind of improved some stove leak test plant.
Background technology
Gas electromagnetic valve generally adopts double spool structure, valve core sealed cover generally adopts fluorine glue sealing surface, and valve body sealing surface is narrower, due to petroleum refinery, to produce dry gas medium dirtier, perishable, and medium impurity sticks on valve core sealed cover and valve rod place, after long-time use, there is pitting corrosion in valve body sealing surface, and gas electromagnetic valve implementation capacity is little, cause that magnetic valve fits badly, interior leakage phenomenon, due to spool stop up cause occurring putting out stove or technique cannot temperature raising operation etc. phenomenon of the failure.Putting out after stove, in recovery point stove process, because magnetic valve fits badly, interior leakage, causing buner system leak detection not passed through, cannot put stove, affecting technological operation.
Utility model content
The technical problem that the utility model solves is to provide a kind of some stove safety, prevents from, because leaking and enter after burner hearth in combustion gas, causing improved some stove leak test plant of detonation and other accidents.
For addressing the above problem, the utility model adopts following technical scheme:
A kind of improved some stove leak test plant, is characterized in that, the first pneumatic operated valve connects into stove fuel gas pipeline, and the second pneumatic operated valve connects air inlet fuel gas pipeline, between the first pneumatic operated valve and the second pneumatic operated valve, is connected by combustion gas short circuit; Enter stove fuel gas pipeline and be connected with the first pressure switch, on combustion gas short circuit, be connected with the second pressure switch, Pressure gauge, on air inlet fuel gas pipeline, be connected with the 3rd pressure switch; Described the first pneumatic operated valve, the second pneumatic operated valve, the first pressure switch, the second pressure switch, the 3rd pressure switch are connected with instrument line with ignition controller respectively, by the mutual transmission of signal of instrument line.Pneumatic operated valve implementation capacity is large, can quick closedown, open, and be not prone to and fit badly, interior leakage phenomenon; The first pressure switch effect is the pressure switch for detection of the high limit of gaseous-pressure warning use; The second pressure switch effect is gas leakage pressure switch; The 3rd pressure switch effect is to detect the normal pressure switch of gaseous-pressure;
Wherein, described the first pneumatic operated valve, the second pneumatic operated valve are single spool, and spool is tetrafluoro spool; Good sealing effect, leakage class meets the requirements.
Advantage of the present utility model is: 1) pneumatic operated valve implementation capacity is large, efficiently solves because of dry gas medium dirtyly, and spool stops up and occurs fitting badly, and leaks phenomenon in valve and causes a problem for stove failure, has guaranteed equipment safety even running; 2) setting pressure table, can make operating personnel judge more intuitively whether pneumatic operated valve leaks gas; 3) pneumatic operated valve spool adopts tetrafluoro spool, and good sealing effect, efficiently solves the corrosion-prone problem of magnetic valve sealing surface.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
In figure, 1, the first pneumatic operated valve; 2, the second pneumatic operated valve; 3, combustion gas short circuit; 4, the first pressure switch; 5, the second pressure switch; 6, the 3rd pressure switch; 7, enter stove fuel gas pipeline; 8, air inlet fuel gas pipeline; 9, Pressure gauge; 10, ignition controller.
Detailed description of the invention
As shown in Figure 1, a kind of improved some stove leak test plant, the first pneumatic operated valve 1 connects into stove fuel gas pipeline 7, the second pneumatic operated valves 2 and connects between air inlet fuel gas pipeline 8, the first pneumatic operated valves 1 and the second pneumatic operated valve 2 and be connected by combustion gas short circuit 3; Enter stove fuel gas pipeline 7 and be connected with the first pressure switch 4, on combustion gas short circuit 3, be connected with the second pressure switch 5, Pressure gauge 9, on air inlet fuel gas pipeline 8, be connected with the 3rd pressure switch 6; The first pneumatic operated valve 1, the second pneumatic operated valve 2, the first pressure switches 4, the second pressure switch 5, the 3rd pressure switch 6 are connected with ignition controller 10 use instrument lines respectively, by the mutual transmission of signal of instrument line; The first pneumatic operated valve 1, the second pneumatic operated valve 2 are single spool, and spool is tetrafluoro spool.
Operating process is:
Before some stove, the first pneumatic operated valve 1 and the second pneumatic operated valve 2 are in closed condition, the first step is first opened the first pneumatic operated valve 1, carry out pressure release, guarantee that combustion gas short circuit 3 internal pressures are zero, second step is closed the first pneumatic operated valve 1, the second pressure switch 5 pressure should be zero, and the second pressure switch 5 detection signals are transferred to ignition controller 10, if pressure is unchanged, the second pneumatic operated valve 2 leak detections are passed through, the 3rd step is opened the second pneumatic operated valve 2, to the interior punching press of combustion gas short circuit 3 to gas ductwork pressure, now the second pressure switch 5 should be gas ductwork force value, and the second pressure switch 5 detection signals are transferred to ignition controller 10, the 4th step is closed pneumatic operated valve 2, the second pressure switch 5 of gas leakage should be gas ductwork force value, and remain unchanged, and the second pressure switch 5 detection signals are transferred to ignition controller 10, after this process is passed through, if pressure is unchanged, the first pneumatic operated valve 1 leak detection is passed through, in leak detection process simultaneously, operating personnel can judge by on-the-spot Pressure gauge 9 whether pneumatic operated valve leaks gas more intuitively.Treat that the first pneumatic operated valve 1 and the second pneumatic operated valve 2 all hunt leak and pass through, ignition controller 10 signal transmissions to the first pneumatic operated valve 1 and the second pneumatic operated valve 2 to allow to open, and carry out a stove; If the first pneumatic operated valve 1 and the second pneumatic operated valve 2 have a leak detection not pass through, ignition controller 10 signal transmissions to the first pneumatic operated valve 1 and the second pneumatic operated valve 2 not to allow to open, the failure of some stove.
The spool of the utility model pneumatic operated valve adopts tetrafluoro spool, and good sealing effect, efficiently solves the corrosion-prone problem of magnetic valve sealing surface; Pneumatic operated valve implementation capacity is large, efficiently solves because of dry gas medium dirtyly, and spool stops up and occurs fitting badly, and leaks phenomenon in valve and causes a problem for stove failure; Gas electromagnetic valve, without on-the-spot Pressure gauge, after the Pressure gauge of the utility model erecting bed, can make operating personnel judge more intuitively whether pneumatic operated valve leaks gas.
The utility model can ensure that gas leakage passes through after using, and guarantees equipment safety even running.
Claims (2)
1. an improved some stove leak test plant, is characterized in that, the first pneumatic operated valve connects into stove fuel gas pipeline, and the second pneumatic operated valve connects air inlet fuel gas pipeline, between the first pneumatic operated valve and the second pneumatic operated valve, is connected by combustion gas short circuit; Enter stove fuel gas pipeline and be connected with the first pressure switch, on combustion gas short circuit, be connected with the second pressure switch, Pressure gauge, on air inlet fuel gas pipeline, be connected with the 3rd pressure switch; Described the first pneumatic operated valve, the second pneumatic operated valve, the first pressure switch, the second pressure switch, the 3rd pressure switch are connected with instrument line with ignition controller respectively.
2. improved some stove leak test plant of one according to claim 1, is characterized in that, described the first pneumatic operated valve, the second pneumatic operated valve are single spool, and spool is tetrafluoro spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243425.0U CN203810437U (en) | 2014-05-13 | 2014-05-13 | Modified furnace ignition leakage detecting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420243425.0U CN203810437U (en) | 2014-05-13 | 2014-05-13 | Modified furnace ignition leakage detecting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203810437U true CN203810437U (en) | 2014-09-03 |
Family
ID=51449180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420243425.0U Expired - Fee Related CN203810437U (en) | 2014-05-13 | 2014-05-13 | Modified furnace ignition leakage detecting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203810437U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154435A (en) * | 2021-05-10 | 2021-07-23 | 中国石油天然气股份有限公司 | Fuel gas pipeline structure and interlocking protection system of open fire heating furnace |
| CN113252253A (en) * | 2021-06-24 | 2021-08-13 | 福建慧芯激光科技有限公司 | Pneumatic valve leak detection device |
-
2014
- 2014-05-13 CN CN201420243425.0U patent/CN203810437U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154435A (en) * | 2021-05-10 | 2021-07-23 | 中国石油天然气股份有限公司 | Fuel gas pipeline structure and interlocking protection system of open fire heating furnace |
| CN113154435B (en) * | 2021-05-10 | 2023-03-07 | 中国石油天然气股份有限公司 | Fuel gas pipeline structure and interlocking protection system of open fire heating furnace |
| CN113252253A (en) * | 2021-06-24 | 2021-08-13 | 福建慧芯激光科技有限公司 | Pneumatic valve leak detection device |
| CN113252253B (en) * | 2021-06-24 | 2024-02-09 | 福建慧芯激光科技有限公司 | Pneumatic valve leak hunting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20210513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |