CN217605985U - Spark test system - Google Patents
Spark test system Download PDFInfo
- Publication number
- CN217605985U CN217605985U CN202220667665.8U CN202220667665U CN217605985U CN 217605985 U CN217605985 U CN 217605985U CN 202220667665 U CN202220667665 U CN 202220667665U CN 217605985 U CN217605985 U CN 217605985U
- Authority
- CN
- China
- Prior art keywords
- branch
- valve
- container unit
- gas
- distribution
- 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.)
- Active
Links
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model relates to a circuit spark safety test equipment technical field provides a spark test system very much, including explosion container unit, distribution route unit, calibration circuit, tested circuit and the control unit, realize the distribution of hydrogen, oxygen through distribution route unit, carry for explosion container unit, then mark through calibration circuit, mark the completion back, to being tested the circuit test, the control unit is controlled each unit. The utility model provides a spark test system has designed very tight distribution route, guarantees to supply gas, carminative tightness and security.
Description
Technical Field
The utility model relates to a circuit spark safety test equipment technical field provides a spark test system very much.
Background
When verifying whether the spark ignition capability of a certain circuit has intrinsic safety, for a simple circuit close to a reference curve, the spark ignition capability of the circuit can be evaluated according to the spark ignition capability reference curve and a data table in GB 3836.4-2010. However, a circuit having a nonlinear characteristic cannot be evaluated using these reference curves and data tables. In this case, the nonlinear characteristic circuit needs to be evaluated by a spark test method, so a spark test system is needed to verify the intrinsic safety of the circuit with the nonlinear characteristic, and the safety of the air distribution part of the existing spark test device is not high, thereby affecting the accuracy of the test.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a spark test system.
The utility model discloses a realize like this, a spark test system is provided, including explosion container unit, distribution access unit, calibration circuit, tested circuit and the control unit, distribution access unit includes oxygen distribution branch, hydrogen distribution branch and air distribution branch, oxygen distribution branch, hydrogen distribution branch and air distribution branch assemble into the distribution main road, the distribution main road is connected with explosion container unit, on the pipeline of distribution main road connection explosion container unit, be equipped with the main valve of admitting air, the distribution main road is close to the one end of explosion container unit, be equipped with the spark arrester, explosion container unit still is connected with the exhaust main road, the one end that the exhaust main road is close to explosion container unit is equipped with the main valve of exhausting, the main road of exhausting connects evacuation branch and gas concentration analysis branch, establish evacuation valve and vacuum pump on the evacuation branch, establish the analysis appearance hand valve on the gas concentration analysis branch, hydrogen concentration analysis appearance and oxygen concentration analysis appearance, be equipped with discharge valve between evacuation branch and the gas concentration analysis branch, the pipeline between the analysis appearance hand valve is kept away from the distribution main road connection of explosion container unit one side through the bypass valve and the air distribution main valve; the calibration circuit is connected with the tested circuit and the explosion container unit, and the control unit is respectively connected with the explosion container unit, the gas distribution passage unit, the calibration circuit and the tested circuit unit.
Preferably, the oxygen distribution branch, the hydrogen distribution branch and the air distribution branch are respectively provided with at least one pressure reducing valve and a flow controller.
Further preferably, an air inlet normally open valve is connected to the air distribution main path on one side of the air inlet main valve, which is far away from the explosion container unit, and a pressure release valve and an air inlet hand valve are connected to the air distribution main path on one side of the air inlet main valve, which is close to the explosion container unit.
Further preferably, an exhaust normally open valve is connected to an exhaust main line between the evacuation branch line and the exhaust main valve.
Compared with the prior art, the utility model has the advantages of:
a spark test system is provided, which designs a very tight air distribution passage, ensures the tightness and safety of air supply and exhaust, and improves the accuracy of the test.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and embodiments:
FIG. 1 is a schematic structural diagram of a spark testing system provided by the present invention;
fig. 2 is a schematic diagram of the connection relationship between the control unit and each of the other units.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1 and 2, the utility model provides a spark test system, including explosion container unit 1, distribution access unit, calibration circuit 19 and tested circuit 18 and control unit, distribution access unit includes oxygen distribution branch, hydrogen distribution branch and air distribution branch, oxygen distribution branch, hydrogen distribution branch and air distribution branch assemble into the distribution main road, the distribution main road is connected with explosion container unit 1, on the pipeline that explosion container unit 1 is connected to the distribution main road, be equipped with main air inlet valve 2, the distribution main road is close to the one end of explosion container unit 1, be equipped with back-fire relief valve 17, explosion container unit 1 still is connected with the exhaust main road, the one end that the exhaust main road is close to explosion container unit 1 is equipped with main exhaust valve 3, main exhaust road connects evacuation branch and gas concentration analysis branch, establish evacuation valve 4 and vacuum pump 5 on the evacuation branch, establish analyzer hand valve 6 on the gas concentration analysis branch, hydrogen concentration analyzer 7 and oxygen concentration analyzer 8, be equipped with 9 between evacuation branch and gas concentration analysis branch, 9 and analyzer pass through the bypass pipeline between hand valve 6 and keep away from main air inlet valve 2 one side of explosion container unit 2; the calibration circuit 19 and the tested circuit 18 are connected with the explosion container unit 1, and the control unit is respectively connected with the explosion container unit 1, the gas distribution passage unit, the calibration circuit 19 and the tested circuit 18.
When the utility model is used for testing the intrinsic safety of the nonlinear characteristic circuit, the tested circuit 18 and the calibration circuit 19 are connected with the explosion container unit 1, the starting device controls the start and stop of the automatic parts on each module and the operation standard through the control unit, the interior of the explosion container unit 1 is vacuumized through the vacuumizing branch, after the standard vacuum degree is reached, oxygen and hydrogen are mixed on the gas distribution main road through the oxygen gas distribution branch and the hydrogen gas distribution branch, the concentration analysis is carried out through the hydrogen concentration analyzer 7 and the oxygen concentration analyzer 8 on the gas concentration analysis branch, and the gas distribution is finished after the set value is reached; the spark test can then be carried out, calibration being carried out first, if within a specified number of revolutions the spark generated in the explosion container unit 1 ignites the explosion gases, the control unit gives a prompt, and if not, the calibration is carried out again after the venting. After the calibration is finished, the spark test can be formally carried out on the tested circuit, the gas distribution process is repeated, then the explosion container unit is started, whether the gas is ignited under the specified condition is judged, and if the gas is not ignited, the tested circuit is considered to be safe. After the test is finished, the system is calibrated again, then the test is finished by blowing air, and in the whole test process, the hydrogen concentration analyzer 7 and the oxygen concentration analyzer 8 can detect the concentrations of hydrogen and oxygen in real time.
When the spark test is carried out, sparks are generated on a tungsten wire electrode in the explosion container unit, and the sparks represent open sparks or low-energy closed sparks generated when the tested circuit is opened or short-circuited. The spark ignition capability of the circuit is considered intrinsically safe if the spark generated when the tungsten wire electrode is opened and closed does not ignite the explosive gas mixture within the explosive vessel.
In order to improve the safety and flow control of gas distribution, as an improvement of the technical scheme, at least one pressure reducing valve 11 and a flow controller 12 are respectively arranged on the oxygen gas distribution branch, the hydrogen gas distribution branch and the air distribution branch.
In order to improve the safety of the gas distribution passage, as an improvement, an air inlet normally open valve 13 is connected to the gas distribution passage on the side of the air inlet main valve 2 away from the explosive container unit 1, and a relief valve 14 and an air inlet hand valve 15 are connected to the gas distribution passage on the side of the air inlet main valve 2 close to the explosive container unit 1. An exhaust normally open valve 16 is connected to an exhaust line between the evacuation branch line and the exhaust line 3.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (4)
1. A spark test system is characterized by comprising an explosion container unit (1), a gas distribution passage unit, a calibration circuit (19), a tested circuit (18) and a control unit, wherein the gas distribution passage unit comprises an oxygen gas distribution branch, a hydrogen gas distribution branch and an air distribution branch, the oxygen gas distribution branch, the hydrogen gas distribution branch and the air distribution branch are converged into a gas distribution main path, the gas distribution main path is connected with the explosion container unit (1), a gas inlet main valve (2) is arranged on a pipeline connecting the gas distribution main path with the explosion container unit (1), one end of the gas distribution main path close to the explosion container unit (1) is provided with a flame arrester (17), the explosion container unit (1) is also connected with a gas outlet main path, one end of the gas outlet main path close to the explosion container unit (1) is provided with a gas outlet main valve (3), the gas outlet main path is connected with a vacuumizing branch and a gas concentration analysis branch, the vacuumizing branch is provided with a vacuumizing valve (4) and a vacuum pump (5), the gas concentration analysis branch is provided with an analyzer hand valve (6), a hydrogen concentration analyzer (7) and an oxygen concentration analyzer (8), one side of the vacuumizing branch is provided with a bypass valve (9) which is far away from the explosion container unit (1), and the gas inlet main path (10); the calibration circuit (19) and the tested circuit (18) are respectively connected with the explosion container unit (1), and the control unit is respectively connected with the explosion container unit (1), the gas distribution passage unit, the calibration circuit (19) and the tested circuit (18).
2. The spark testing system of claim 1 wherein said oxygen distribution branch, said hydrogen distribution branch and said air distribution branch are provided with at least one pressure reducing valve (11) and a flow controller (12), respectively.
3. The spark testing system according to claim 1, wherein an air inlet normally open valve (13) is connected to the air distribution main path on the side of the air inlet main valve (2) far away from the explosive container unit (1), and a pressure release valve (14) and an air inlet hand valve (15) are connected to the air distribution main path on the side of the air inlet main valve (2) near the explosive container unit (1).
4. The spark testing system according to claim 1, wherein an exhaust normally open valve (16) is connected to an exhaust manifold between the evacuation branch and the exhaust manifold valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220667665.8U CN217605985U (en) | 2022-03-25 | 2022-03-25 | Spark test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220667665.8U CN217605985U (en) | 2022-03-25 | 2022-03-25 | Spark test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217605985U true CN217605985U (en) | 2022-10-18 |
Family
ID=83562505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220667665.8U Active CN217605985U (en) | 2022-03-25 | 2022-03-25 | Spark test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217605985U (en) |
-
2022
- 2022-03-25 CN CN202220667665.8U patent/CN217605985U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2020104269A4 (en) | Experimental device and method for hot surface ignition of combustible gas in flowing state | |
| CN109991029A (en) | Explosion-proof performance test system for mining electrical equipment | |
| CN217605985U (en) | Spark test system | |
| CN109580229A (en) | A kind of consecutive pressurization system syndication platform experimental rig | |
| CN109323818A (en) | Leakage point Smoke Detection technique and its device | |
| CN110864857A (en) | Combustion engine fuel inlet leakage testing device and testing method based on pressure correction | |
| CN101424673B (en) | Dangerous characteristic detector for flammable gas | |
| CN210513996U (en) | Carbon tank test system | |
| CN110146298B (en) | Engine fuel system testing device and method | |
| CN212252705U (en) | High-energy discharge ignition device of combustor | |
| CN112432800B (en) | Device for simultaneously carrying out explosion-proof test on multiple sets of explosion-proof test tanks and gas replacement method | |
| CN105257430A (en) | Gas supply system of high-performance gas engine | |
| CN210604532U (en) | Chromatographic detection device | |
| CN214225051U (en) | Methane combustion test system | |
| CN211291911U (en) | Leakage and ventilation detection device for automobile fuel supply system | |
| CN113154435B (en) | Fuel gas pipeline structure and interlocking protection system of open fire heating furnace | |
| CN220105823U (en) | Fire control facility smoke detector testing arrangement | |
| CN218546662U (en) | Avoid flame-out portable FID detector | |
| CN214791253U (en) | Ignition explosion-proof device for gas boiler | |
| CN212965331U (en) | Nitrogen blowback control system for testing fuel cell | |
| CN215415316U (en) | Adjustable gas sensor test device | |
| CN115406640B (en) | Filter explosion damage simulation device and method | |
| CN113122289B (en) | Pre-tempering treatment system and method for dry quenching furnace diffused gas | |
| CN111895444A (en) | High-energy discharge ignition device of combustor | |
| CN219300761U (en) | Gaseous hazardous waste feeding system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |