CN101957294A - Saving type valve low temperature test system - Google Patents
Saving type valve low temperature test system Download PDFInfo
- Publication number
- CN101957294A CN101957294A CN 201010511998 CN201010511998A CN101957294A CN 101957294 A CN101957294 A CN 101957294A CN 201010511998 CN201010511998 CN 201010511998 CN 201010511998 A CN201010511998 A CN 201010511998A CN 101957294 A CN101957294 A CN 101957294A
- Authority
- CN
- China
- Prior art keywords
- valve
- temperature
- links
- test
- pressure
- 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.)
- Granted
Links
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to a valve low temperature test system, in particular to a saving type valve low temperature test system capable of carrying out both cryogenic treatment on parts and valve low temperature test. The valve system comprises a low temperature environment unit and a test environment unit, wherein the low temperature environment unit is used for carrying out the cryogenic treatment on a valve to be tested, and the test environment unit provides gas for the valve to be tested; and the valve system further comprises a process monitoring unit for monitoring the test process. The invention can carry out both the cryogenic treatment on the parts and the valve low temperature test; in addition, the invention reduces the wastage of liquid nitrogen and helium and the accident risk of testers, and greatly reduces the manufacturing and testing costs of the system.
Description
Technical field
The present invention relates to a kind of valve cryogenic test system, relate in particular to and a kind ofly can carry out the parts subzero treatment, can carry out the economizing type valve cryogenic test system of valve cryogenic test again.
Background technology
Along with industrial expansions such as liquefied natural gas (LNG), ethene petrochemical industry, the application of Subzero valve more and more widely, the market demand also rises year by year.In the production run of Subzero valve, be lower than-100 ℃ Subzero valve for working temperature, its main parts size will be carried out subzero treatment before finishing, and purpose is to reduce because the distortion that the temperature difference and metallographic structure change produce.In the examination and test of products process of Subzero valve, also need under cryogenic conditions, carry out the valve overall performance test simultaneously.And the entire test manual intervention link in the existing system is too much, thereby has increased the accident risk of testing crew greatly.
Summary of the invention
The purpose of this invention is to provide a kind of economizing type valve cryogenic test system, this pilot system can either be carried out subzero treatment to part, can carry out low-temperature test to valve again, and this system can reduce manufacturing and experimentation cost, the accident risk of reduction testing crew.
For achieving the above object, the present invention has adopted following technical scheme: a kind of economizing type valve cryogenic test system, this pilot system comprises that treating the side valve door carries out the low temperature environment unit of subzero treatment and provide the experimental enviroment unit of test gas to valve to be measured, and this pilot system also comprises the process monitoring unit of monitoring test process.
Low temperature environment of the present invention unit comprises the low temperature storage tank of storing liquid nitrogen, low temperature storage tank links to each other with the low-temperature test groove by the low temperature connecting tube, the end that the low temperature connecting tube links to each other with the low-temperature test groove has been arranged in parallel dipping feed liquor valve and spray feed liquor valve, and described spray feed liquor valve is connected with the spray jet pipe that is arranged on low-temperature test groove inside.
Also be provided with the arm that is connected with atmosphere by safety valve and tapping valve respectively on the described low temperature connecting tube.
Described spray jet pipe is arranged in the top of low-temperature test groove, and the spray jet pipe sprays jet pipe and is provided with hole or the spray spout of opening towards valve to be measured along the circumferential setting of the valve to be measured in the low-temperature test groove.
Experimental enviroment of the present invention unit comprises the helium tank group, the helium tank group links to each other with a end of valve to be measured in being arranged on the low-temperature test groove by pressure piping and helium supercharging and retracting device successively, and the other end of valve to be measured is communicated with atmosphere by valve and measuring apparatus.
Described measuring apparatus comprises the alcohol bubble counter and the flowmeter of mutual series connection.
Described helium supercharging and retracting device comprise pneumatic supercharge pump, are arranged with two booster cavities on the pneumatic supercharge pump, are provided with a retaining valve group on each booster cavity; The entrance point of described two retaining valve groups all links to each other with the helium tank group by first pressure charging valve, and the entrance point of two retaining valve groups also all links to each other with valve to be measured by first recovery valve; The endpiece of described two retaining valve groups all links to each other with valve to be measured by second pressure charging valve, and the entrance point of two retaining valve groups also all links to each other with the helium tank group by second recovery valve; Described valve to be measured also is provided with the blowdown valve of opening towards atmosphere with the end that the helium supercharging links to each other with retracting device.
Described each retaining valve group includes two and links to each other successively and flow to identical retaining valve, and two retaining valve branches are located at the both sides of booster cavity.
Described first pressure charging valve links to each other with the driving source of the gas by boost electromagnetic valve with second pressure charging valve, first recovery valve links to each other with the driving source of the gas by reclaiming solenoid valve with second recovery valve, blowdown valve links to each other with the driving source of the gas by the pressure release solenoid valve, and the gas boosting pump links to each other with the driving source of the gas by driving the pump solenoid valve; Described boost electromagnetic valve, reclaim solenoid valve, pressure release solenoid valve and drive the parallel connection of pump solenoid valve after with drive source of the gas and link to each other; Described boost electromagnetic valve, reclaim solenoid valve, pressure release solenoid valve and drive the pump solenoid valve and all be electrically connected with the process monitoring unit.
Process monitoring of the present invention unit comprises the controller that is electrically connected with process monitoring equipment with mutual transmission signals, the input end of described controller is electrically connected with input topworks by input control circuit, and the output terminal of controller is electrically connected with output executing mechanism by output control circuit; The input end of described process monitoring equipment links to each other with the output terminal of intelligence instrument cohort, and the input end of intelligence instrument cohort is electrically connected with temperature sensor, pressure transducer and flowmeter respectively;
Described temperature sensor is the PT100 cohort, generates the temperature signal cohort after temperature, valve gap temperature, valve rod temperature, filler temperature, the seal temperature in the valve body temperature of the collection of PT100 cohort environment temperature, refrigerant temperature and valve to be measured, the valve; Described pressure transducer comprises the storage pressure transmitter of gathering helium tank group pressure and the test pressure transmitter of gathering valve pressure to be measured, and pressure transducer generates the pressure signal cohort after gathering relevant pressure; Described flowmeter collection is leaked helium gas flow and is generated flow signal.
Beneficial effect of the present invention is:
(1), being connected to each other the low temperature environment unit that forms by low temperature storage tank, low-temperature test groove, low temperature connecting tube and preserving, carrying in the liquid nitrogen process insulation effect good among the present invention, the liquid nitrogen vaporization amount is few, thereby has reduced the experimentation cost of total system;
(2), the present invention is provided with spray equipment in low-temperature test groove inside, described spray equipment makes liquid nitrogen apply when carrying out low-temperature test and overlays on valve surface to form one deck liquid film, control the test specimen temperature by spray flux and the spray time of regulating liquid nitrogen, thereby further reduced the consumption of liquid nitrogen, also further reduced accordingly the experimentation cost of system;
(3), existing valve cryogenic test system adopts liquid nitrogen to build cryogenic environment as the refrigerant medium usually, and by adding the temperature level of a certain proportion of alcohol when obtaining 0～-196 ℃.Therefore in the valve cryogenic test process, need to consume a large amount of liquid nitrogen and alcohol, and, therefore experimental enviroment and TT﹠C system have just been proposed requirement of explosion, also just increased the manufacturing cost of total system because alcohol is inflammable and explosive volatile liquid; Spray equipment among the present invention has then been avoided the use of alcohol when low-temperature test, thereby has reduced the experimentation cost of system accordingly, has protected the personal safety of testing crew simultaneously.
(4), valve cryogenic test uses helium as test(ing) medium, and helium is rare resource.In the process of large bore valves low-temperature test, the consumption of helium is huge; The supercharging of helium supercharging among the present invention and retracting device collection helium is an one with reclaiming function, and supercharging, fast, the helium recovery rate height of recovery speed have reduced experimentation cost and saved valuable helium resource;
(5), the present invention is by PT100, pressure unit, the accurate measurement of flowmeter and the accurate control of controller (PLC), can realize efficient, accurate, automatic valve cryogenic test process, can also realize the remote monitoring of LAN (Local Area Network) and the Internet by monitoring software, thereby guarantee the personal safety of testing crew.
Description of drawings
Fig. 1 is the structural representation of low temperature environment of the present invention unit;
Fig. 2 is a test principle synoptic diagram of the present invention;
Fig. 3 is the structural representation of experimental enviroment of the present invention unit;
Fig. 4 is a gas boosting pump structure synoptic diagram;
Fig. 5 is a control system principle schematic of the present invention.
The 1-low temperature storage tank, 2-bleeder valve, 3-low temperature connecting tube, the 4-low-temperature solenoid valve, 5-atmosphere, 6-safety valve, 7-connects the arm of low-temperature test groove N, and 8-connects the arm of low-temperature test groove 2,9-dipping feed liquor valve, 10-low-temperature test groove 1,11-sprays jet pipe, 12-spray spout, 13-spray feed liquor valve, 14 atmosphere, 15-tapping valve, 16-helium tank group, the 17-bus-bar, 18-high-pressure hose, 19 storage pressure transmitters, supercharging of 20-helium and retracting device, 201-gas boosting pump, 201A, 201B-gas boosting pump booster cavity, 2011,2012,2013, the 2014-retaining valve, 202-first pressure charging valve, 203-second pressure charging valve, 204-first recovery valve, 205-second recovery valve, the 206-boost electromagnetic valve, 207-reclaims solenoid valve, 208-pressure release solenoid valve, and 209-drives the pump solenoid valve, 21-drives source of the gas, the 22-blowdown valve, 23-test pressure transmitter, 24-coiled pipe, 25-valve to be measured, the 26-PT100 cohort, 27-needle valve, 28-alcohol bubble counter, the 29-flowmeter, the 30-atmosphere, 31-output executing mechanism, 32-output control circuit, the 33-controller PLC, the 34-input control circuit, 35-imports topworks, 36-intelligence instrument cohort, 37-temperature signal cohort, 38-pressure signal cohort, 39-flow signal, 40-process monitoring equipment, 41-remote monitoring configuration and database, 42-on-site supervision configuration.
Embodiment
The present invention will be described in detail below in conjunction with accompanying drawing, thereby so that advantages and features of the invention can be easier to it will be appreciated by those skilled in the art that protection scope of the present invention is made more explicit defining.
Working temperature is lower than-100 ℃ Subzero valve parts all need carry out subzero treatment before finishing, the metal phase change of parts and distortion are fully taken place.The valve that is assembled into finished product through the parts of subzero treatment also needs to carry out the low-temperature test under the low temperature environment, with the sealing and the operating performance of test complete machine.Therefore the present invention sets forth as case study on implementation with the parts subzero treatment and the low-temperature test of Subzero valve.
With reference to Fig. 1, low temperature environment unit among the present invention, its low temperature storage tank 1 disposes bleeder valve 2, bleeder valve 2 is connected by low temperature connecting tube 3 with low-temperature test groove 10, configuration low-temperature solenoid valve 4 in the pipeline, safety valve 6, tapping valve 15, the safety valve 6 terminal atmosphere 5 that connect, the tapping valve 15 terminal atmosphere 14 that connect, low temperature connecting tube 3 is divided into two branch roads when connecting low-temperature test groove 10, one tunnel configuration dipping feed liquor valve 9, spray jet pipe 11 during another road configuration sprays feed liquor valve 13 and is arranged on low temperature storage tank 1 links to each other, and spray jet pipe 11 is arranged around prolonging low-temperature test groove 10 inwalls, layout spray spout 12 on the spray jet pipe 11.
Described low temperature storage tank 1 is used for low temperature refrigerant such as liquid nitrogen are carried out the storage of long period and keep the conveying of certain pressure.
Low-temperature test groove 10 of the present invention is double-deck uncovered metal construction, and is furnished with the insulation loam cake, interlayer between the inside and outside wall of low-temperature test groove 10 is filled high insulation polymer foaming material, to guarantee good heat insulation effect, the inner bag of low-temperature test groove 10 bottom is provided with fixed sturcture, with the unitary rotation of valve in preventing to test.
Low temperature connecting tube 3 of the present invention adopts vacuum heat-insulating pipe, with the inside and outside courage material of austenitic stainless steel as the vacuum dewar pipe, adopts multilayer heat insulation technology.
Spray equipment of the present invention is made of spray jet pipe 11 and spray spout, and spray equipment is arranged nozzle quantity, expulsion pressure, eject position according to the space size of low-temperature test groove 10, pending accessory size and thermal capacity.
With reference to Fig. 2, experimental enviroment unit among the present invention, helium enters helium supercharging and retracting device 20 by helium tank group 16 through bus-bar 17, by entering valve 25 to be measured through coiled pipe 24 after helium supercharging and retracting device 20 superchargings, leak helium and discharge atmosphere 30 through alcohol bubble counter 28 and flowmeter 29 by valve 25 outlets to be measured.
With reference to Fig. 3,4, described helium supercharging and retracting device 20 comprise pneumatic supercharge pump 201, are arranged with two booster cavities on the gas boosting pump 201, are provided with a retaining valve group on each booster cavity; The entrance point of described two retaining valve groups all links to each other with helium tank group 16 by first pressure charging valve 202, and the entrance point of two retaining valve groups also all links to each other with valve 25 to be measured by first recovery valve 204; The endpiece of described two retaining valve groups all links to each other with valve 25 to be measured by second pressure charging valve 203, and the entrance point of two retaining valve groups also all links to each other with helium tank group 16 by second recovery valve 205; Described valve to be measured 25 also is provided with the blowdown valve 22 of opening towards atmosphere with the end that the helium supercharging links to each other with retracting device 20.
With further reference to Fig. 4, be arranged with two booster cavity 201A, 201B on the described gas boosting pump 201, be provided with a retaining valve group on each booster cavity, described each retaining valve group includes two and links to each other successively and flow to identical retaining valve, and two retaining valve branches are located at the both sides of booster cavity, both sides as booster cavity 201A are arranged with retaining valve 2011,2012, and the both sides of booster cavity 201B are arranged with retaining valve 2013,2014.
With reference to Fig. 3, described first pressure charging valve 202 links to each other with driving source of the gas 21 by boost electromagnetic valve 206 with second pressure charging valve 203, first recovery valve 204 links to each other with driving source of the gas 21 by reclaiming solenoid valve 207 with second recovery valve 205, blowdown valve 22 links to each other with driving source of the gas 21 by pressure release solenoid valve 208, and gas boosting pump 201 links to each other with driving source of the gas 21 by driving pump solenoid valve 209; Described boost electromagnetic valve 206, reclaim solenoid valve 207, pressure release solenoid valve 208 and drive pump solenoid valve 209 backs in parallel and drive source of the gas 21 and link to each other; Described boost electromagnetic valve 206, reclaim solenoid valve 207, pressure release solenoid valve 208 and drive pump solenoid valve 209 and all be electrically connected with the process monitoring unit.
With reference to Fig. 2, Fig. 5, process monitoring unit among the present invention is gathered by PT100 cohort 26 in the valve body temperature, valve of environment temperature, refrigerant temperature and valves to be measured and is generated temperature signal cohort 37 after temperature, valve gap temperature, valve rod temperature, filler temperature, the seal temperature; Gather the pressure of helium tank group 16 and the pressure generation pressure signal cohort 38 that test pressure transmitter 23 is gathered valve 25 to be measured by storage pressure transmitter 19, gather the leakage helium gas flow by flowmeter 29 and generate flow signal 39, these three kinds of signals enter intelligence instrument cohort 36, and show each physical quantity numerical value respectively.Intelligence instrument cohort 36 is sent to each physical quantity numerical value remote monitoring configuration and database 41 and the on-site supervision configuration 42 in the process monitoring equipment 40 simultaneously.Input topworks 35 sends into input switch amount signal in the controller PLC 33 by input control circuit 4, and controller PLC 33 drives output executing mechanism 31 according to the program of internal processes and remote monitoring configuration and database 41 and on-site supervision configuration 42 by output control circuit 32.
Specifically describe the process of the invention process case below:
Valve components subzero treatment process:
Valve components is placed in the low-temperature test groove 10, place PT100 cohort 11 at the diverse location that is higher than the valve components place, close tapping valve 15, open bleeder valve 2, dipping feed liquor valve 9, open low-temperature solenoid valve 4 by the temperature control button in long-range temperature control button or monitoring and control configuration 41 or 42, begin to carry liquid nitrogen, when the temperature demonstration reaches-196 ℃, system closes low-temperature solenoid valve 4 automatically, stop to carry liquid nitrogen, be incubated 1 to 2 hour, take out valve components and return to normal temperature naturally, repetitive cycling 2 times.
The valve cryogenic test control procedure: with the low temperature seal test is example
1, valve 25 to be measured is placed low-temperature test groove 10 internal fixation, and PT100 cohort 11 is fixed on the relevant position according to testing requirements, will test pipeline and connect by Fig. 2 mode.
2, set the relevant option of test in the monitoring and control configuration 11 at the scene.
3, close tapping valve 15, open bleeder valve 2, spray feed liquor valve 13, open low-temperature solenoid valve 4 by the temperature control button in long-range temperature control button or remote monitoring configuration and database 41 or the on-site supervision configuration 42, begin to carry liquid nitrogen, when temperature reached test temperature, system closed low-temperature solenoid valve 4 automatically.When being in automatic temperature-controlled state, system automatically according to Current Temperatures switch low-temperature solenoid valve 4 to keep Current Temperatures consistent with test temperature.
4, begin the helium supercharging by the supercharging button in long-range supercharging button or remote monitoring configuration and database 41 or the on-site supervision configuration 42, helium is delivered to valve 25 to be measured from helium tank group 16.This process is divided into helium inflation and two subprocess of helium supercharging.When storage pressure transmitter 19 force value during much larger than test pressure transmitter 23 force value, helium supercharging and retracting device 20 are opened automatically by retaining valve by system, but do not open the gas boosting pump 201 in helium supercharging and the retracting device 20, by the pressure differential realization helium inflation subprocess of helium tank group 16 and valve to be measured 25; When storage pressure transmitter 19 force value slightly equaled test pressure transmitter 23 force value, system opened the gas boosting pump in helium supercharging and the retracting device 20 automatically, to realize helium supercharging subprocess.
5, when test pressure transmitter 23 force value equal test determination pressure, system closes whole helium supercharging and retracting device 20 automatically, by the pressurize button in long-range pressurize button or remote monitoring configuration and database 41 or the on-site supervision configuration 42, begin to note down test figure, system generates pressure, leakage rate-time curve automatically, if pressure and leakage rate are all in specialized range, after dwell time through regulation, it is qualified that system is judged automatically, otherwise stop pressure maintaining period at once, judge defective.
6, after the test figure record is finished, begin helium recovery, helium is delivered to helium tank group 16 from valve 25 to be measured by the recovery button in long-range recovery button or remote monitoring configuration and database 41 or the on-site supervision configuration 42.This process is divided into helium inflation recovery and two subprocess are reclaimed in the helium supercharging.When test pressure transmitter 23 force value during much larger than storage pressure transmitter 19 force value, helium supercharging and retracting device 20 are opened automatically by retaining valve by system, but do not open the gas boosting pump 201 in helium supercharging and the retracting device 20, reclaim subprocess by the pressure differential realization helium inflation of valve 25 to be measured and helium tank group 16; When test pressure transmitter 23 force value slightly equaled storage pressure transmitter 19 force value, system opened the gas boosting pump 201 in helium supercharging and the retracting device 20 automatically, reclaimed subprocess to realize the helium supercharging.
7, also have the residual helium of part after the helium recovery in the pipeline, begin pressure release by the pressure relief press button in remote monitoring configuration and database 41 or the on-site supervision configuration 42, residual helium enters atmosphere by blowdown valve 22 in the pipeline.
Simultaneously with reference to Fig. 1, arm 7 and arm 8 that mutual parallel connection is still arranged on the described low temperature connecting tube 3, arm 8 is in order to connect low-temperature test groove 2, arm 7 is in order to connect low-temperature test groove N, then the present invention can carry out subzero treatment to a plurality of low-temperature test grooves simultaneously thus, thereby has greatly improved test efficiency.
The above only is the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the disclosed technical scope of the present invention, and variation or replacement without creative work carries out all should be encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (10)
1. economizing type valve cryogenic test system, it is characterized in that: this pilot system comprises that treating side valve door (25) carries out the low temperature environment unit of subzero treatment and provide the experimental enviroment unit of test gas to valve to be measured (25), and this pilot system also comprises the process monitoring unit of monitoring test process.
2. economizing type valve cryogenic test according to claim 1 system, it is characterized in that: described low temperature environment unit comprises the low temperature storage tank (1) of storing liquid nitrogen, low temperature storage tank (1) links to each other with low-temperature test groove (10) by low temperature connecting tube (3), the end that low temperature connecting tube (3) links to each other with low-temperature test groove (10) has been arranged in parallel dipping feed liquor valve (9) and spray feed liquor valve (13), and described spray feed liquor valve (13) the spray jet pipe (11) inner with being arranged on low-temperature test groove (10) is connected.
3. economizing type valve cryogenic test according to claim 2 system is characterized in that: also be provided with the arm that is connected with atmosphere by safety valve (6) and tapping valve (15) respectively on the described low temperature connecting tube (3).
4. economizing type valve cryogenic test according to claim 3 system, it is characterized in that: described spray jet pipe (11) is arranged in the top of low-temperature test groove (10), and spray jet pipe (11) is along the circumferential setting of the valve to be measured (25) in the low-temperature test groove (10), and spray jet pipe (11) is provided with hole or the spray spout (12) of opening towards valve to be measured (25).
5. according to claim 2 or 3 or 4 described economizing type valve cryogenic test systems, it is characterized in that: described experimental enviroment unit comprises helium tank group (16), helium tank group (16) links to each other with a end of valve to be measured (25) in being arranged on low-temperature test groove (10) by pressure piping and helium supercharging and retracting device (20) successively, and the other end of valve to be measured (25) is communicated with atmosphere by valve (27) and measuring apparatus.
6. economizing type valve cryogenic test according to claim 5 system, it is characterized in that: described measuring apparatus comprises the alcohol bubble counter (28) and the flowmeter (29) of mutual series connection.
7. economizing type valve cryogenic test according to claim 5 system, it is characterized in that: described helium supercharging and retracting device (20) comprise pneumatic supercharge pump (201), be arranged with two booster cavities on the gas boosting pump (201), be provided with a retaining valve group on each booster cavity;
The entrance point of described two retaining valve groups all links to each other with helium tank group (16) by first pressure charging valve (202), and the entrance point of two retaining valve groups also all links to each other with valve to be measured (25) by first recovery valve (204);
The endpiece of described two retaining valve groups all links to each other with valve to be measured (25) by second pressure charging valve (203), and the entrance point of two retaining valve groups also all links to each other with helium tank group (16) by second recovery valve (205);
Described valve to be measured (25) also is provided with the blowdown valve (22) of opening towards atmosphere with the end that the helium supercharging links to each other with retracting device (20).
8. helium supercharging and the recovery system that is used for valve cryogenic test according to claim 7 is characterized in that: described each retaining valve group includes two and links to each other successively and flow to identical retaining valve, and two retaining valve branches are located at the both sides of booster cavity.
9. economizing type valve cryogenic test according to claim 8 system, it is characterized in that: described first pressure charging valve (202) links to each other with driving source of the gas (21) by boost electromagnetic valve (206) with second pressure charging valve (203), first recovery valve (204) links to each other with driving source of the gas (21) by reclaiming solenoid valve (207) with second recovery valve (205), blowdown valve (22) links to each other with driving source of the gas (21) by pressure release solenoid valve (208), and gas boosting pump (201) links to each other with driving source of the gas (21) by driving pump solenoid valve (209);
Described boost electromagnetic valve (206), reclaim solenoid valve (207), pressure release solenoid valve (208) and drive pump solenoid valve (209) back in parallel and link to each other with driving source of the gas (21);
Described boost electromagnetic valve (206), reclaim solenoid valve (207), pressure release solenoid valve (208) and drive pump solenoid valve (209) and all be electrically connected with the process monitoring unit.
10. according to claim 6 or 7 or 8 or 9 described economizing type valve cryogenic test systems, it is characterized in that: described process monitoring unit comprises the controller (33) that is electrically connected with process monitoring equipment (40) with mutual transmission signals, the input end of described controller (33) is electrically connected with input topworks (35) by input control circuit (34), and the output terminal of controller (33) is electrically connected with output executing mechanism (31) by output control circuit (32); The input end of described process monitoring equipment (40) links to each other with the output terminal of intelligence instrument cohort (36), and the input end of intelligence instrument cohort (36) is electrically connected with temperature sensor, pressure transducer and flowmeter (29) respectively;
Described temperature sensor is PT100 cohort (26), generates temperature signal cohort (37) after temperature, valve gap temperature, valve rod temperature, filler temperature, the seal temperature in the valve body temperature of PT100 cohort (26) collection environment temperature, refrigerant temperature and valve to be measured (25), the valve;
Described pressure transducer comprises the storage pressure transmitter (19) of gathering helium tank group (16) pressure and the test pressure transmitter (23) of gathering valve to be measured (25) pressure, and pressure transducer generates pressure signal cohort (38) after gathering relevant pressure;
Described flowmeter (29) collection is leaked helium gas flow and is generated flow signal (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010511998 CN101957294B (en) | 2010-10-20 | 2010-10-20 | Saving type valve low temperature test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010511998 CN101957294B (en) | 2010-10-20 | 2010-10-20 | Saving type valve low temperature test system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101957294A true CN101957294A (en) | 2011-01-26 |
| CN101957294B CN101957294B (en) | 2013-10-09 |
Family
ID=43484749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010511998 Active CN101957294B (en) | 2010-10-20 | 2010-10-20 | Saving type valve low temperature test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101957294B (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929235A (en) * | 2012-10-26 | 2013-02-13 | 江苏兆胜空调有限公司 | Electric control device of double-system helium recycling equipment |
| CN103256770A (en) * | 2012-04-23 | 2013-08-21 | 中国科学院理化技术研究所 | Cryogenic treatment equipment with cold energy recovery device |
| JP2015064352A (en) * | 2013-09-02 | 2015-04-09 | 株式会社ササクラ | Valve cooling method |
| CN105179927A (en) * | 2015-06-11 | 2015-12-23 | 成都威登阀门技术有限公司 | Helium gas recovery apparatus |
| CN105258863A (en) * | 2015-11-11 | 2016-01-20 | 长春轨道客车股份有限公司 | Simulation detection apparatus of railway-vehicle 3-way ball valve cold resistance performance |
| CN105650959A (en) * | 2015-12-31 | 2016-06-08 | 上海振华重工集团(南通)传动机械有限公司 | Liquid nitrogen cooling device and assembly method thereof |
| CN105758598A (en) * | 2016-04-22 | 2016-07-13 | 上海市特种设备监督检验技术研究院 | Low temperature test device of valve performance |
| CN106248355A (en) * | 2016-07-12 | 2016-12-21 | 中国石油化工股份有限公司 | Fusible plug fatigue test device |
| CN106482904A (en) * | 2015-08-25 | 2017-03-08 | 北京卫星环境工程研究所 | The leak detection pressurization recovery system of time-sharing multiplex |
| CN106813987A (en) * | 2015-11-27 | 2017-06-09 | 北京宇航系统工程研究所 | Gas cylinder low-temperature test system |
| CN107356471A (en) * | 2017-08-15 | 2017-11-17 | 塔里木大学 | A kind of and the supporting simple low temperature intelligent temperature control device of direct shear apparatus and method |
| CN107515086A (en) * | 2016-06-15 | 2017-12-26 | 北京亿华通科技股份有限公司 | A kind of test device for air tightness |
| CN107525660A (en) * | 2017-08-07 | 2017-12-29 | 裴渐强 | A kind of low-temperature safety valve calibration equipment |
| CN109374416A (en) * | 2018-09-20 | 2019-02-22 | 大连理工大学 | A kind of pressure vessel blasting test system and method for liquid oxygen environment |
| CN110579350A (en) * | 2019-09-07 | 2019-12-17 | 中石化石油工程技术服务有限公司 | low-temperature valve pressure detection device and using method thereof |
| CN111023652A (en) * | 2019-12-11 | 2020-04-17 | 广东电网有限责任公司 | Helium gas circulating cooling system, design method, equipment and storage medium |
| CN111323216A (en) * | 2018-12-14 | 2020-06-23 | 中国石油天然气集团有限公司 | Valve pressure performance testing system and method |
| CN113029551A (en) * | 2021-04-13 | 2021-06-25 | 特技阀门集团有限公司 | Ultralow temperature valve test device |
| WO2023087338A1 (en) * | 2021-11-17 | 2023-05-25 | 惠州凯美特气体有限公司 | Method and apparatus for testing gas tightness of gas cylinder |
| CN116337368A (en) * | 2023-05-11 | 2023-06-27 | 江苏君澄空间科技有限公司 | Method and system for testing air tightness of air cylinder in ultralow temperature/normal temperature alternating environment |
-
2010
- 2010-10-20 CN CN 201010511998 patent/CN101957294B/en active Active
Non-Patent Citations (4)
| Title |
|---|
| 《流体机械》 20091231 朱绍源等 低温阀门深冷试验装置的设计 第27-31页 1-10 第37卷, 第11期 * |
| 《深冷技术》 20011231 张玉文等 冷藏运输汽车采用液氮喷淋技术的实验研究 第6-8页 1-10 , 第3期 * |
| 《阀门》 20041231 童南青 阀门低温试验装置 第17－18页 1-10 , 第4期 * |
| 《阀门》 20100228 张晓忠等 基于计算机数据采集的低温阀门性能测试装置 第16-19页 2-10 , 第1期 * |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256770A (en) * | 2012-04-23 | 2013-08-21 | 中国科学院理化技术研究所 | Cryogenic treatment equipment with cold energy recovery device |
| CN103256770B (en) * | 2012-04-23 | 2015-07-08 | 中国科学院理化技术研究所 | Cryogenic treatment equipment with cold energy recovery device |
| CN102929235A (en) * | 2012-10-26 | 2013-02-13 | 江苏兆胜空调有限公司 | Electric control device of double-system helium recycling equipment |
| JP2015064352A (en) * | 2013-09-02 | 2015-04-09 | 株式会社ササクラ | Valve cooling method |
| CN105179927A (en) * | 2015-06-11 | 2015-12-23 | 成都威登阀门技术有限公司 | Helium gas recovery apparatus |
| CN105179927B (en) * | 2015-06-11 | 2018-03-06 | 成都威登阀门技术有限公司 | Helium recovery unit |
| CN106482904B (en) * | 2015-08-25 | 2019-10-25 | 北京卫星环境工程研究所 | The leak detection pressurization recovery system of time-sharing multiplex |
| CN106482904A (en) * | 2015-08-25 | 2017-03-08 | 北京卫星环境工程研究所 | The leak detection pressurization recovery system of time-sharing multiplex |
| CN105258863A (en) * | 2015-11-11 | 2016-01-20 | 长春轨道客车股份有限公司 | Simulation detection apparatus of railway-vehicle 3-way ball valve cold resistance performance |
| CN106813987A (en) * | 2015-11-27 | 2017-06-09 | 北京宇航系统工程研究所 | Gas cylinder low-temperature test system |
| CN105650959A (en) * | 2015-12-31 | 2016-06-08 | 上海振华重工集团(南通)传动机械有限公司 | Liquid nitrogen cooling device and assembly method thereof |
| CN105758598A (en) * | 2016-04-22 | 2016-07-13 | 上海市特种设备监督检验技术研究院 | Low temperature test device of valve performance |
| CN107515086A (en) * | 2016-06-15 | 2017-12-26 | 北京亿华通科技股份有限公司 | A kind of test device for air tightness |
| CN106248355A (en) * | 2016-07-12 | 2016-12-21 | 中国石油化工股份有限公司 | Fusible plug fatigue test device |
| CN107525660A (en) * | 2017-08-07 | 2017-12-29 | 裴渐强 | A kind of low-temperature safety valve calibration equipment |
| CN107356471A (en) * | 2017-08-15 | 2017-11-17 | 塔里木大学 | A kind of and the supporting simple low temperature intelligent temperature control device of direct shear apparatus and method |
| CN109374416A (en) * | 2018-09-20 | 2019-02-22 | 大连理工大学 | A kind of pressure vessel blasting test system and method for liquid oxygen environment |
| CN109374416B (en) * | 2018-09-20 | 2020-12-11 | 大连理工大学 | Pressure vessel blasting test system and method for liquid oxygen environment |
| CN111323216A (en) * | 2018-12-14 | 2020-06-23 | 中国石油天然气集团有限公司 | Valve pressure performance testing system and method |
| CN110579350A (en) * | 2019-09-07 | 2019-12-17 | 中石化石油工程技术服务有限公司 | low-temperature valve pressure detection device and using method thereof |
| CN110579350B (en) * | 2019-09-07 | 2022-05-03 | 中石化石油工程技术服务有限公司 | Low-temperature valve pressure detection device and using method thereof |
| CN111023652A (en) * | 2019-12-11 | 2020-04-17 | 广东电网有限责任公司 | Helium gas circulating cooling system, design method, equipment and storage medium |
| CN113029551A (en) * | 2021-04-13 | 2021-06-25 | 特技阀门集团有限公司 | Ultralow temperature valve test device |
| WO2023087338A1 (en) * | 2021-11-17 | 2023-05-25 | 惠州凯美特气体有限公司 | Method and apparatus for testing gas tightness of gas cylinder |
| CN116337368A (en) * | 2023-05-11 | 2023-06-27 | 江苏君澄空间科技有限公司 | Method and system for testing air tightness of air cylinder in ultralow temperature/normal temperature alternating environment |
| CN116337368B (en) * | 2023-05-11 | 2023-12-05 | 江苏君澄空间科技有限公司 | Method and system for testing air tightness of air cylinder in ultralow temperature/normal temperature alternating environment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101957294B (en) | 2013-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101957294B (en) | Saving type valve low temperature test system | |
| CN107067918B (en) | The helium experimental loop device of fusion reactor | |
| CN105510140B (en) | A kind of pressure-resistant explosion bulge test system and method for low-temperature deep pressure vessel | |
| CN105758598A (en) | Low temperature test device of valve performance | |
| CN102346119A (en) | Gas charging and discharging test apparatus for high-pressure composite material gas storage cylinder | |
| CN111413093B (en) | Integrated test system for cryogenic bearing and dynamic seal | |
| CN106918458B (en) | A kind of Test System for Rocket Engine Test kerosene high/low temperature heat-exchange system and charging method | |
| CN110332458B (en) | Gas supplementing device and method for environment-friendly insulating electrical equipment | |
| CN114252344A (en) | Low-temperature hydraulic testing device and method for pressure container without heat insulation layer | |
| CN106989892A (en) | Continuous high-speed wind-tunnel cooling system liquid nitrogen storage device | |
| CN101603754B (en) | Simple liquid helium external flow systemic transmission method for cryogenic system | |
| CN208817083U (en) | The lossless fueling station of cryogenic liquid | |
| CN104865043B (en) | A kind of LNG cold flow characteristics experimental provision | |
| CN108594036B (en) | Communicating vessel type testing device for superconducting strip electrification test | |
| CN108444157B (en) | Mixed working medium filling system and method for acoustic energy refrigerator | |
| CN109612700B (en) | Component performance test system under cryogenic high-pressure environment | |
| CN114088168B (en) | Liquid hydrogen flow standard device driven by liquid hydrogen pump and adopting mass method | |
| CN214372370U (en) | Low-temperature rapid temperature change test device for blade tip clearance sensor | |
| CN207248485U (en) | Continuous high-speed wind-tunnel cooling system liquid nitrogen storage device | |
| CN114923639A (en) | System and method for detecting internal and external leakage rate of low-temperature plate-fin heat exchanger | |
| CN115371902A (en) | Detection system and method for inner pipe leakage hole of vacuum heat insulation pipeline of test station | |
| CN207336004U (en) | A kind of low temperature valve cryogenic property tests system | |
| CN102305346B (en) | Low-temperature liquid recovery equipment based on automatic control | |
| CN105928405A (en) | Layered cold storage device and cryogenic liquid air energy storage system using same | |
| CN206804288U (en) | Low-temperature test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HEFEI GENERAL ENVIRONMENT CONTROL TECHNOLOGY CO., Free format text: FORMER OWNER: HEFEI UNIVERSAL MACHINERY INST. Effective date: 20140319 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 230088 HEFEI, ANHUI PROVINCE TO: 230094 HEFEI, ANHUI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140319 Address after: High tech Zone Hefei city Anhui province 230094 Xisi Road No. 9 (electromechanical Industrial Park) Patentee after: Hefei General Environment Control Technology Co., Ltd. Address before: 230088 No. 888 Changjiang West Road, hi tech Zone, Anhui, Hefei Patentee before: Hefei Universal Machinery Inst. |