CN112414641A - Automatic program control method for safety inspection of air tightness of generator valve - Google Patents
Automatic program control method for safety inspection of air tightness of generator valve Download PDFInfo
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- CN112414641A CN112414641A CN202011367111.8A CN202011367111A CN112414641A CN 112414641 A CN112414641 A CN 112414641A CN 202011367111 A CN202011367111 A CN 202011367111A CN 112414641 A CN112414641 A CN 112414641A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000007689 inspection Methods 0.000 title claims abstract description 26
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims abstract description 84
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims abstract description 84
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000008569 process Effects 0.000 abstract description 5
- 239000005997 Calcium carbide Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses an automatic program control method for safety inspection of gas tightness of a generator valve, which comprises an acetylene generator, a high-pressure air pump, a pressure sensor, a gas pipe and an electric valve, wherein the high-pressure air pump is fixedly assembled at one side of the acetylene generator, the gas exhaust end of the high-pressure air pump is connected with the gas pipe through a flange, one end of the gas pipe is connected with the acetylene generator in an installing way, the electric valve is assembled on the gas pipe through the flange, and the pressure sensor is installed at the top of one side of the acetylene generator. And (3) setting each 40 buckets to carry out valve leakage detection, primarily setting the pressurizing pressure at 20KPa, and after 40 seconds, if the pressure is reduced by not less than 5KPa, determining that the valves are leaked, and carrying out optimized adjustment on parameters in the using process. Namely, the DCS program acts to complete security check, whether the upper and lower valves are tight is judged, if not, the security check cannot be passed, and the material conveying program of the generator is not allowed to be started.
Description
Technical Field
The invention belongs to the technical field of acetylene generators, and particularly relates to an automatic program control method for safety inspection of the gas tightness of a generator valve.
Background
The acetylene generator is one of three reactors in the PVC device, 4 generators are arranged in the PVC device which produces 10 ten thousand tons every year, and the calcium carbide adding, slag discharging and reaction control of the generators are controlled by remote DCS manual operation or single loop control; DCS operating personnel determine the starting and stopping of the generator according to the acetylene flow required by conversion and the sound condition of the generator, and remotely control the working vibration frequency and the adding amount of a feeder of the generator according to the temperature and the pressure of the generator; external operation is required to be instructed to complete slag discharge, water seal liquid level control and the like of the generator; the device is also responsible for the work of monitoring the calcium carbide bin, the operation of a cleaning system and the like; the control operation intensity of acetylene DCS operators is high, the requirements on operation skills and responsibility are high, and safety accidents are easily caused once judgment errors or negligence occur in the highly tense state; for example: the accident of deflation of the acetylene gas cabinet, the explosion accident of the storage hopper of the generator and the like; in order to reduce the operation control intensity of DCS operators, improve the automatic control level of an acetylene generator, avoid safety accidents caused by negligence or misjudgment of the operators and improve the safety automation level of calcium carbide conveying, storage and acetylene generation processes, the automatic program control technology of the acetylene generator needs to be subjected to attack, closing and development, so that the automatic program control of acetylene generator feeding and reaction control is realized, and the safety automation level of the acetylene generator is improved.
After the acetylene generator is used for charging and discharging for many times, the air tightness of the valve of the acetylene generator is reduced, and the hidden danger of major accidents is generated or generated after long-term detection and maintenance.
Disclosure of Invention
The invention aims to provide an automatic program control method for the safety inspection of the air tightness of a generator valve, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the automatic program control method for the safety inspection of the gas tightness of the valve of the generator comprises an acetylene generator, a high-pressure gas pump, a pressure sensor, a gas pipe and an electric valve, wherein the high-pressure gas pump is fixedly assembled on one side of the acetylene generator, the gas exhaust end of the high-pressure gas pump is connected with the gas pipe through a flange, one end of the gas pipe is connected with the acetylene generator in an installing mode, the electric valve is assembled on the gas pipe through the flange, and the pressure sensor is installed at the top of one side of the acetylene generator.
Further, the method specifically comprises the following steps:
the method comprises the following steps: a person successively assembles the high-pressure air pump, the air pressure sensor and the air delivery pipe on one side of the acetylene generator, controls the circulation of the air delivery pipe through the electric valve, and successively electrically connects the high-pressure air pump, the air pressure sensor and the electric valve with the DCS control system;
step two: when the acetylene generator is used, when the opening times of an upper valve or a lower valve of the generator reach 30-40 times, valve air tightness safety inspection is implemented according to program requirements, and valve leakage detection is carried out every 30-40 buckets;
step three: controlling high-pressure gas 2 to convey high-pressure gas to the interior of the acetylene generator by a DCS (distributed control system), setting the initial pressurizing pressure at 20-25KPa, and keeping the current pressure for 40-50 s;
step four: after the third step of stamping is finished, detecting the air pressure in the acetylene generator by an air pressure sensor, wherein the pressure drop amplitude is not less than 5KPa, judging that a valve leaks, if the pressure drop amplitude is not tight, the valve cannot pass the safety inspection, and the material conveying program of the generator is not allowed to be started;
step five: and (4) carrying out manual rechecking on the acetylene generator with the problem in the security check in the step four by personnel, carrying out maintenance and repair, then repeating the security check procedures in the step two and the step three, and returning to normal use after the safety check is qualified.
Further, the opening positions of the upper valve and the lower valve of the acetylene generator are both provided with leakage alarms.
Furthermore, the temperature control loop in the acetylene generator is kept unchanged, the newly added generator liquid level high limit is interlocked with the water replenishing valve, and when the generator liquid level high limit is reached, the generator water replenishing valve is cut off in an interlocking mode, so that the liquid level of the generator is ensured.
Further, a temperature sensor is assembled on the acetylene generator.
Compared with the prior art, the invention has the beneficial effects that: when the opening times of an upper valve or a lower valve of a generator reach a set value (blanking reaches 40 times), the program requires to implement valve air tightness safety inspection, valve leakage detection is carried out on every 40 buckets by primarily setting the pressurizing pressure at 20KPa, after 40 seconds, if the pressure reduction amplitude is larger than or equal to 5KPa, valve leakage is considered, parameters are optimized and adjusted in the using process, namely, DCS program action is carried out, safety inspection is completed, whether the upper valve and the lower valve are tight is judged, if the upper valve and the lower valve are not tight, the safety inspection cannot be passed, and the material conveying program of the generator does not allow starting.
Drawings
Fig. 1 is a schematic diagram of the overall structure of an automatic program control method for the airtight security inspection of a generator valve.
Fig. 2 is a schematic structural diagram of a second cutting disc of the automatic program control method for the airtight safety check of the generator valve.
In the figure: 1. an acetylene generator; 2. a high pressure air pump; 3. a gas delivery pipe; 4. an electrically operated valve; 5. an air pressure sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1-2, a generator valve gas tightness safety inspection automatic program control method, including acetylene generator 1, high compression pump 2, baroceptor 5, gas-supply pipe 3 and motorised valve 4, 1 one side fixed assembly of acetylene generator has high compression pump 2, the exhaust end of high compression pump 2 has gas-supply pipe 3 through flange connection, 3 one end of gas-supply pipe and 1 erection joint of acetylene generator, be equipped with motorised valve 4 through the flange on the gas-supply pipe 3, baroceptor 5 is installed at 1 one side top of acetylene generator.
The method specifically comprises the following steps:
the method comprises the following steps: a person assembles the high-pressure air pump 2, the air pressure sensor 5 and the air delivery pipe 3 to one side of the acetylene generator 1 in sequence, controls the circulation of the air delivery pipe 3 through the electric valve 4, and electrically connects the high-pressure air pump 2, the air pressure sensor 5 and the electric valve 4 to the DCS control system in sequence;
step two: when the acetylene generator 1 is used, when the opening times of an upper valve or a lower valve of the generator reach 30 times, the air tightness safety check of the valve is implemented according to the program requirement, and the valve leakage detection is carried out every 30 buckets;
step three: a DCS control system controls a high-pressure air pump 2 to convey high-pressure air to the interior of an acetylene generator 1, the primary pressurizing pressure is initially set at 20KPa, and the current pressure is kept for 40 s;
step four: after the third step of stamping, detecting the air pressure in the acetylene generator 1 by an air pressure sensor 5, wherein the pressure drop amplitude is not less than 5KPa, judging that a valve leaks, if the pressure drop amplitude is not strict, the valve cannot pass the safety inspection, and the material conveying program of the generator is not allowed to be started;
step five: and (4) manually rechecking the acetylene generator 1 with the problem in the security check in the step four by personnel, maintaining and repairing, then repeating the security check procedures in the step two and the step three, and returning to normal use after the safety check is qualified.
Wherein, the opening positions of the upper valve or the lower valve of the acetylene generator 1 are both provided with leakage alarms.
In this embodiment, as shown in fig. 1, a leakage alarm is provided to help a person to know whether the upper or lower valve of the acetylene generator 1 is leaking or not at an early stage.
The temperature control loop in the acetylene generator 1 is kept unchanged, the newly added generator liquid level high limit is interlocked with the water replenishing valve, and when the generator liquid level high limit is reached, the generator water replenishing valve is cut off in an interlocking mode, so that the generator liquid level is ensured.
Wherein, a temperature sensor is assembled on the acetylene generator 1.
In the present embodiment, as shown in fig. 1, the temperature sensor is provided to help a person know the temperature value inside the acetylene generator 1.
Example 2
As shown in fig. 1-2, a generator valve gas tightness safety inspection automatic program control method, including acetylene generator 1, high compression pump 2, baroceptor 5, gas-supply pipe 3 and motorised valve 4, 1 one side fixed assembly of acetylene generator has high compression pump 2, the exhaust end of high compression pump 2 has gas-supply pipe 3 through flange connection, 3 one end of gas-supply pipe and 1 erection joint of acetylene generator, be equipped with motorised valve 4 through the flange on the gas-supply pipe 3, baroceptor 5 is installed at 1 one side top of acetylene generator.
The method specifically comprises the following steps:
the method comprises the following steps: a person assembles the high-pressure air pump 2, the air pressure sensor 5 and the air delivery pipe 3 to one side of the acetylene generator 1 in sequence, controls the circulation of the air delivery pipe 3 through the electric valve 4, and electrically connects the high-pressure air pump 2, the air pressure sensor 5 and the electric valve 4 to the DCS control system in sequence;
step two: when the acetylene generator 1 is used, when the opening times of an upper valve or a lower valve of the generator reach 35 times, the air tightness safety check of the valve is implemented according to the program requirement, and the valve leakage detection is carried out by setting each 35 buckets;
step three: the DCS control system controls the high-pressure air pump 2 to convey high-pressure air to the interior of the acetylene generator 1, the primary pressurizing pressure is initially set at 22KPa, and the current pressure is kept for 30 s;
step four: after the third step of stamping, detecting the air pressure in the acetylene generator 1 by an air pressure sensor 5, wherein the pressure drop amplitude is not less than 5KPa, judging that a valve leaks, if the pressure drop amplitude is not strict, the valve cannot pass the safety inspection, and the material conveying program of the generator is not allowed to be started;
step five: and (4) manually rechecking the acetylene generator 1 with the problem in the security check in the step four by personnel, maintaining and repairing, then repeating the security check procedures in the step two and the step three, and returning to normal use after the safety check is qualified.
Wherein, the opening positions of the upper valve or the lower valve of the acetylene generator 1 are both provided with leakage alarms.
In this embodiment, as shown in fig. 1, a leakage alarm is provided to help a person to know whether the upper or lower valve of the acetylene generator 1 is leaking or not at an early stage.
The temperature control loop in the acetylene generator 1 is kept unchanged, the newly added generator liquid level high limit is interlocked with the water replenishing valve, and when the generator liquid level high limit is reached, the generator water replenishing valve is cut off in an interlocking mode, so that the generator liquid level is ensured.
Wherein, a temperature sensor is assembled on the acetylene generator 1.
In the present embodiment, as shown in fig. 1, the temperature sensor is provided to help a person know the temperature value inside the acetylene generator 1.
Example 3
As shown in fig. 1-2, a generator valve gas tightness safety inspection automatic program control method, including acetylene generator 1, high compression pump 2, baroceptor 5, gas-supply pipe 3 and motorised valve 4, 1 one side fixed assembly of acetylene generator has high compression pump 2, the exhaust end of high compression pump 2 has gas-supply pipe 3 through flange connection, 3 one end of gas-supply pipe and 1 erection joint of acetylene generator, be equipped with motorised valve 4 through the flange on the gas-supply pipe 3, baroceptor 5 is installed at 1 one side top of acetylene generator.
The method specifically comprises the following steps:
the method comprises the following steps: a person assembles the high-pressure air pump 2, the air pressure sensor 5 and the air delivery pipe 3 to one side of the acetylene generator 1 in sequence, controls the circulation of the air delivery pipe 3 through the electric valve 4, and electrically connects the high-pressure air pump 2, the air pressure sensor 5 and the electric valve 4 to the DCS control system in sequence;
step two: when the acetylene generator 1 is used, when the opening times of an upper valve or a lower valve of the generator reach 40 times, valve air tightness safety inspection is implemented according to program requirements, and valve leakage detection is carried out every 40 buckets;
step three: the DCS control system controls the high-pressure air pump 2 to convey high-pressure air to the interior of the acetylene generator 1, the initial pressurizing pressure is initially set at 25KPa, and the current pressure is kept for 50 s;
step four: after the third step of stamping, detecting the air pressure in the acetylene generator 1 by an air pressure sensor 5, wherein the pressure drop amplitude is not less than 5KPa, judging that a valve leaks, if the pressure drop amplitude is not strict, the valve cannot pass the safety inspection, and the material conveying program of the generator is not allowed to be started;
step five: and (4) manually rechecking the acetylene generator 1 with the problem in the security check in the step four by personnel, maintaining and repairing, then repeating the security check procedures in the step two and the step three, and returning to normal use after the safety check is qualified.
Wherein, the opening positions of the upper valve or the lower valve of the acetylene generator 1 are both provided with leakage alarms.
In this embodiment, as shown in fig. 1, a leakage alarm is provided to help a person to know whether the upper or lower valve of the acetylene generator 1 is leaking or not at an early stage.
The temperature control loop in the acetylene generator 1 is kept unchanged, the newly added generator liquid level high limit is interlocked with the water replenishing valve, and when the generator liquid level high limit is reached, the generator water replenishing valve is cut off in an interlocking mode, so that the generator liquid level is ensured.
Wherein, a temperature sensor is assembled on the acetylene generator 1.
In the present embodiment, as shown in fig. 1, the temperature sensor is provided to help a person know the temperature value inside the acetylene generator 1.
The working principle and the using process of the invention are as follows: when the opening times of the upper valve or the lower valve of the generator reach a set value (blanking reaches 40 times), the procedure requires to implement the valve air tightness security check. Valve leakage detection is carried out on every 40 buckets by preliminary setting, the pressurizing pressure is preliminarily set at 20KPa, after 40 seconds, if the pressure is reduced by not less than 5KPa, valve leakage is considered, and parameters are optimized and adjusted in the using process. Namely, the DCS program acts to complete security check, whether the upper and lower valves are tight is judged, if not, the security check cannot be passed, and the material conveying program of the generator is not allowed to be started.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a generator valve gas tightness safety inspection mechanism, includes acetylene gas generator (1), high compression pump (2), baroceptor (5), gas-supply pipe (3) and motorised valve (4), its characterized in that, acetylene gas generator (1) one side fixed assembly has high compression pump (2), the exhaust end of high compression pump (2) has gas-supply pipe (3) through flange joint, gas-supply pipe (3) one end and acetylene gas generator (1) erection joint, be equipped with motorised valve (4) through the flange on gas-supply pipe (3), baroceptor (5) are installed at acetylene gas generator (1) one side top.
2. The automatic program control method of the generator valve airtightness security inspection mechanism according to claim 1 is characterized by specifically comprising the following steps:
the method comprises the following steps: a person sequentially assembles the high-pressure air pump (2), the air pressure sensor (5) and the air conveying pipe (3) to one side of the acetylene generator (1), controls the circulation of the air conveying pipe (3) through the electric valve (4), and sequentially electrically connects the high-pressure air pump (2), the air pressure sensor (5) and the electric valve (4) with the DCS control system;
step two: when the acetylene generator (1) is used, when the opening times of an upper valve or a lower valve of the generator reach 30-40 times, valve air tightness safety inspection is implemented according to program requirements, and valve leakage detection is carried out by setting each 30-40 buckets;
step three: a DCS control system controls a high-pressure air pump (2) to convey high-pressure gas to the interior of an acetylene generator (1), the initial charging pressure is initially set at 20-25KPa, and the current pressure is kept for 40-50 s;
step four: after the third step of stamping is finished, detecting the air pressure in the acetylene generator (1) by an air pressure sensor (5), wherein the pressure drop amplitude is not less than 5KPa, judging that a valve leaks, if the valve does not leak tightly, the valve cannot pass the safety inspection, and the material conveying program of the generator is not allowed to be started;
step five: and (4) manually rechecking the acetylene generator (1) with the problem in the security check in the step four by personnel, maintaining and repairing, then repeating the security check procedures in the step two and the step three, and returning to normal use after the acetylene generator is qualified.
3. The generator shutter air-tightness security inspection mechanism according to claim 1, characterized in that: and leakage alarms are assembled at the opening positions of the upper valve or the lower valve of the acetylene generator (1).
4. The generator shutter air-tightness security inspection mechanism according to claim 1, characterized in that: the internal temperature control loop of the acetylene generator (1) is kept unchanged, the newly added generator liquid level high limit is interlocked with the water replenishing valve, and when the generator liquid level high limit is reached, the generator water replenishing valve is cut off in an interlocking mode, so that the generator liquid level is ensured.
5. The generator shutter air-tightness security inspection mechanism according to claim 1, characterized in that: and a temperature sensor is assembled on the acetylene generator (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011367111.8A CN112414641A (en) | 2020-11-29 | 2020-11-29 | Automatic program control method for safety inspection of air tightness of generator valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011367111.8A CN112414641A (en) | 2020-11-29 | 2020-11-29 | Automatic program control method for safety inspection of air tightness of generator valve |
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| CN112414641A true CN112414641A (en) | 2021-02-26 |
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| CN202011367111.8A Pending CN112414641A (en) | 2020-11-29 | 2020-11-29 | Automatic program control method for safety inspection of air tightness of generator valve |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006053631A (en) * | 2004-08-10 | 2006-02-23 | Fuji Electric Fa Components & Systems Co Ltd | Inspection method for gas leak alarm and inspection gas generator |
| CN203295452U (en) * | 2013-05-09 | 2013-11-20 | 安徽天辰化工股份有限公司 | Acetylene generator having remote leakage detecting function |
| CN204043869U (en) * | 2013-12-31 | 2014-12-24 | 浙江大华技术股份有限公司 | A kind of air-tightness detection device |
| CN105675235A (en) * | 2016-03-16 | 2016-06-15 | 湖南科技大学 | Container leakage detection device and method |
| CN207159155U (en) * | 2017-07-05 | 2018-03-30 | 青海盐湖工业股份有限公司 | A kind of automatic control system for acetylene generator |
| CN209501627U (en) * | 2018-11-23 | 2019-10-18 | 宜宾海丰和锐有限公司 | A kind of acetylene generator charging system |
| CN110437878A (en) * | 2019-08-05 | 2019-11-12 | 昆明鹏翼达气体产品有限公司 | A kind of acetylene production process process automation interlock control system and control method |
| KR20200041175A (en) * | 2018-10-11 | 2020-04-21 | 김경호 | Leak sensing system using air pressure |
-
2020
- 2020-11-29 CN CN202011367111.8A patent/CN112414641A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006053631A (en) * | 2004-08-10 | 2006-02-23 | Fuji Electric Fa Components & Systems Co Ltd | Inspection method for gas leak alarm and inspection gas generator |
| CN203295452U (en) * | 2013-05-09 | 2013-11-20 | 安徽天辰化工股份有限公司 | Acetylene generator having remote leakage detecting function |
| CN204043869U (en) * | 2013-12-31 | 2014-12-24 | 浙江大华技术股份有限公司 | A kind of air-tightness detection device |
| CN105675235A (en) * | 2016-03-16 | 2016-06-15 | 湖南科技大学 | Container leakage detection device and method |
| CN207159155U (en) * | 2017-07-05 | 2018-03-30 | 青海盐湖工业股份有限公司 | A kind of automatic control system for acetylene generator |
| KR20200041175A (en) * | 2018-10-11 | 2020-04-21 | 김경호 | Leak sensing system using air pressure |
| CN209501627U (en) * | 2018-11-23 | 2019-10-18 | 宜宾海丰和锐有限公司 | A kind of acetylene generator charging system |
| CN110437878A (en) * | 2019-08-05 | 2019-11-12 | 昆明鹏翼达气体产品有限公司 | A kind of acetylene production process process automation interlock control system and control method |
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Application publication date: 20210226 |