CN102798571A - Pressure container pressure resistance test process and auxiliary tools thereof - Google Patents
Pressure container pressure resistance test process and auxiliary tools thereof Download PDFInfo
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- CN102798571A CN102798571A CN2012103096539A CN201210309653A CN102798571A CN 102798571 A CN102798571 A CN 102798571A CN 2012103096539 A CN2012103096539 A CN 2012103096539A CN 201210309653 A CN201210309653 A CN 201210309653A CN 102798571 A CN102798571 A CN 102798571A
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Abstract
The invention discloses a pressure container pressure resistance test process and auxiliary tools thereof, belonging to the technical field of manufacturing of pressure containers. According to the invention, pressurization cavities and storage containers, which serve as the auxiliary tools, are additionally arranged and matched with an original test tool; in the process, a pressurization cavity mounting step is added; and different pressure test mediums are filled in the different cavities. The test process comprises the specific steps of foreign matter cleaning, pressure test medium filling, emptying, pressurization cavity mounting, water injection, pressure testing, decompression, dichlorofluoroethane recovery and ending. According to the invention, after the pressurization cavities are added in the test process, the synchronous application of a plurality of liquids can be realized; and when the dichlorofluoroethane (R141b) is taken as the pressure test medium, the production efficiency can be effectively improved and the manufacturing cost can be reduced.
Description
Technical field
The invention belongs to the production of pressure container technical field.
Background technology
Pressure vessel must carry out withstand voltage test after making completion, also will carry out seal (tightness)test sometimes, in order to the bulk strength and the compactness of check product.The process system that some is important, cleanliness factor and aridity require high, in the system iron rust must not be arranged, and also liquid residue must not be arranged.The pressure vessel of this type device uses nitrogen or drying, clean pressurized air to carry out gas pressure test mostly, test each mouth of pipe of back sealing that finishes, and keep certain gas overbottom pressure, to keep inner dry.
Conventional hydro-test causes liquid residue easily, and easy-clear not.As use most convenient, the most frequently used test(ing) medium water, and also need carry out uncovered oven dry during removing and handle, drying course can cause again and get rusty, and this is that the process system cleanliness factor is unallowed.When using other to be difficult for residual volatile media pressure testing, can cause internal contamination, and can cause the test(ing) medium gasification during step-down, process of the test is dangerous.
Conventional gas pressure test use nitrogen or drying, clean pressurized air carry out gas pressure test, belong to overvoltage test, and security is bad, and waste nitrogen or air compressor machine power consumption.TSGR0004-2009 " fixed safe technology of pressure vessel supervision rules " 4.5.3.2.2 (3) stipulates in addition; As the pressure vessel that adopts gas pressure test or gas-liquid combination pressure to test; Must carry out 100% Non-Destructive Testing to A, the category-B soldered joint that is tried on the shell of tank; Cause the production efficiency of pressure vessel to descend like this, the manufacturing process relative complex, cost increases.
The container that tried related in the above-mentioned experimental technique has only a cavity volume, can't solve two kinds of simultaneously applied situation of liquid.
Summary of the invention
The purpose of this invention is to provide a kind of pressure vessel withstand voltage test technology and auxiliary mould thereof, to solve 1) cause liquid residue easily during conventional hydro-test, influence that system is dry, cleanliness factor, thereby influence the performance of whole process system; When 2) pressurized air of prior art employing nitrogen or drying, cleaning carried out gas pressure test, Non-Destructive Testing required height, manufacturing process relative complex, efficient is low, cost is high, poor stability; 3) tried container in the normal experiment technology and had only a cavity volume, can't be solved two kinds of defectives such as the simultaneously applied situation of liquid.
The technical solution adopted for the present invention to solve the technical problems is to set up pressurizing chamber and the reservoir vessel supporting with former test fixture, and pressurizing chamber and reservoir vessel are auxiliary mould; Increase in the technology pressurizing chamber step is installed; Filling liquid mediums in the different cavitys.
At original inlet or big mouth of pipe place that is tried container pressurizing chamber is set; Thereby be divided into two cavity volumes to the volume that is tried container; One another is a pressurizing chamber in order to be tried the volume body cavity, and pressurizing chamber compresses between inlet flange and blind flange through fastening bolt, nut.
Described concrete test method step is following:
A: cleaning foreign matter: will be tried internal tank in advance and clean out, and must not leave the foreign matter that iron filings, welding slag, dust etc. influence the cleaning inside degree, and remove the mouth of pipe of inlet, pressurization mouth, exhausr port, gauge port with rear enclosed;
B: perfusion test medium:, tried volume body intra-bladder instillation test medium " dichloro one fluoroethane (R141b) " through inlet is past, and leave a small amount of clearance volume according to the intraluminal volume that is tried container;
C: emptying: in the time of the perfusion test medium, get rid of the residual air that is tried in the volume body cavity, subsequently the setting pressure table;
D: pressurizing chamber is installed: at the inlet place that leaves clearance volume or than the big mouth of pipe place pressurizing chamber is installed, pressurizing chamber compresses between inlet flange and blind flange through fastening bolt, nut;
E: water filling: through the pressurization mouth on the blind flange, use test pump fills with water in pressurizing chamber, and slowly boost to the hydro-test pressure of product drawing regulation.
F: pressure testing:
A: conventional pressure testing: tried container by rules, standard pressurize, inspection;
B: the seal (tightness)test requirement is arranged, adopt halogen leak detector to hunt leak simultaneously;
G: pressure release: after pressure testing is qualified, open blowdown valve, slowly pressure release is to atmospheric pressure state;
H: reclaim dichloro one fluoroethane: open the drain valve, " dichloro one fluoroethane (R141b) " slowly is recovered in the reservoir vessel, in order to reusing;
I: ending: after the hydro-test process finishes, open the feed tube gland bonnet, take out pressurizing chamber, use drying nitrogen that inside is dried up, and seal each mouth of pipe; If still need air-tight test, again according to gas-tight test pressure inflated with nitrogen or dry air, carry out air-tight test, after standard pressurize, passed examination, after 0.05-0.1MPa is reduced in exhaust, seal each mouth of pipe immediately.
Adopt good effect of the present invention to be: after setting up pressurizing chamber, to use when can realize various liquid; Test medium adopts dichloro one fluoroethane (R141b), is a kind of high-purity liquid, is a kind of clean-out system, is again a kind of cold-producing medium, neither can pollute being tried container, to being tried internal tank cleanup action is arranged again; Dichloro one fluoroethane (R141b) is with the difference of other freon refrigerants; Boiling point under the normal pressure is 32.05 ℃; Higher relatively, in the normal pressure discharge process, can not cause the flash distillation gasification; Can guarantee the security of pressure testing process, the destruction ozone latent energy value (ODP) of dichloro one fluoroethane (R141b) is 0.086; Global warming coefficient value (GWP) is 0.15; And collect the back and reuse, can not cause adverse effect environment; Because of this experimentation belongs to hydro-test also is seal (tightness)test simultaneously; According to regulation among the TSGR0004-2009 " fixed safe technology of pressure vessel supervision rules "; Can exempt being tried 100% Non-Destructive Testing of container, fill the process of test working medium when avoiding simultaneously carrying out seal (tightness)test repeatedly, the infringement that the pressure testing repeatedly of minimizing container possibly cause; Can effectively enhance productivity, reduce manufacturing cost.
Description of drawings
Below in conjunction with accompanying drawing and embodiment invention is further specified:
Fig. 1 is the structural representation that is tried container:
Among the figure 1, tried container, 2 and tried volume body cavity, 3 bolts, 4 nuts, 5 pressurizing chambers, 6 inlet flanges, 7 blind flanges, 8 reservoir vessels, 9 drains, 10 inlets.
Embodiment
Embodiment 1
The present invention sets up the pressurizing chamber 5 and reservoir vessel 8 supporting with former test fixture, and pressurizing chamber 5 is an auxiliary mould with reservoir vessel 8; Increase in the technology pressurizing chamber step is installed, the different pressure testing liquid body mediums of filling in the different volume cavitys are tried the clean test medium " dichloro one fluoroethane (R141b) " of filling volatility in the volume body cavity 2, fill water in the pressurizing chamber 5.
At original inlet 10 places that tried container 1 pressurizing chamber 5 is installed; Pressurizing chamber 5 is divided into two cavity volumes trying container 1 volume; One another is a pressurizing chamber 5 in order to be tried volume body cavity 2, and pressurizing chamber 5 compresses between inlet flange 6 and blind flange 7 through fastening bolt 3, nut 4; Reservoir vessel 8 is set below drain 9.
Described concrete test method step is following:
A: cleaning foreign matter: will be tried internal tank in advance and clean out, and must not leave the foreign matter that iron filings, welding slag, dust etc. influence the cleaning inside degree, and remove the mouth of pipe of inlet, boost port, exhausr port, gauge port with rear enclosed;
B: perfusion test medium:, tried volume body intra-bladder instillation test medium " dichloro one fluoroethane (R141b) " through inlet is past, and leave a small amount of clearance volume according to the intraluminal volume that is tried container;
C: emptying: in the time of the perfusion test medium, get rid of and tried the inner residual air of container body, setting pressure table subsequently;
D: pressurizing chamber is installed: preferred withstand voltage capsule is a pressurizing chamber, at the inlet place that leaves clearance volume a pressurizing chamber is installed, and pressurizing chamber compresses between inlet flange and blind flange through fastening bolt, nut;
E: water filling: through the boost port on the blind flange, use test pump fills with water in pressurizing chamber, and slowly boost to the product drawing regulation hydro-test pressure.
F: pressure testing:
A: conventional pressure testing: tried container by rules, standard pressurize, inspection;
B: the seal (tightness)test requirement is arranged, adopt halogen leak detector to hunt leak simultaneously;
G: pressure release: after pressure testing is qualified, open blowdown valve, slowly pressure release is to atmospheric pressure state;
H: reclaim dichloro one fluoroethane: open the drain valve, " dichloro one fluoroethane (R141b) " slowly is recovered to reservoir vessel, in order to reusing;
I: ending: after the hydro-test process finishes, open the feed tube gland bonnet, take out pressurizing chamber, use drying nitrogen that inside is dried up, and seal each mouth of pipe; If also need air-tight test, again according to gas-tight test pressure inflated with nitrogen or dry air, carry out air-tight test, after standard pressurize, passed examination, after 0.07MPa is reduced in exhaust, seal each mouth of pipe immediately.It is identical with prior art to be tried container, each mouth of pipe, bearing and manometric structure.
Claims (2)
1. a pressure vessel withstand voltage test technology is characterized in that middle increasing installed the pressurizing chamber step in the technology; Filling liquid mediums in the different cavitys, its concrete test method step is following:
A: cleaning foreign matter: will be tried internal tank in advance and clean out, and must not leave the foreign matter that iron filings, welding slag, dust etc. influence the cleaning inside degree, and remove the mouth of pipe of inlet, boost port, exhausr port, gauge port with rear enclosed;
B: perfusion test medium:, tried volume body intra-bladder instillation test medium " dichloro one fluoroethane (R141b) " through inlet is past, and leave a small amount of clearance volume according to the intraluminal volume that is tried container;
C: emptying: in the time of the perfusion test medium, get rid of the residual air that is tried in the volume body cavity, subsequently the setting pressure table;
D: pressurizing chamber is installed: at the inlet place that leaves clearance volume or than the big mouth of pipe place pressurizing chamber is installed, pressurizing chamber compresses between inlet flange and blind flange through fastening bolt, nut;
E: water filling: through the boost port on the blind flange, use test pump fills with water in pressurizing chamber, and slowly boost to the hydro-test pressure of product drawing regulation;
F: pressure testing:
A: conventional pressure testing: tried container by rules, standard pressurize, inspection;
B: the seal (tightness)test requirement is arranged, adopt halogen leak detector to hunt leak simultaneously;
G: pressure release: after pressure testing is qualified, open blowdown valve, slowly pressure release is to atmospheric pressure state;
H: reclaim dichloro one fluoroethane: open the drain valve, " dichloro one fluoroethane (R141b) " slowly is recovered in the reservoir vessel, in order to reusing;
I: ending: after the hydro-test process finishes, open the feed tube gland bonnet, take out pressurizing chamber, use drying nitrogen that inside is dried up, and seal each mouth of pipe; If also need air-tight test, again according to gas-tight test pressure inflated with nitrogen or dry air, carry out air-tight test, after standard pressurize, passed examination, after 0.05-0.1MPa is reduced in exhaust, seal each mouth of pipe immediately.
2. the auxiliary mould of a pressure vessel withstand voltage test technology as claimed in claim 1 is characterized in that setting up pressurizing chamber and the reservoir vessel supporting with former test fixture, and pressurizing chamber and reservoir vessel are auxiliary mould; At original inlet or big mouth of pipe place that is tried container pressurizing chamber is set; Pressurizing chamber is divided into two cavity volumes to the volume that is tried container; One another is a pressurizing chamber in order to be tried the volume body cavity, and pressurizing chamber compresses between inlet flange and blind flange through fastening bolt, nut; Reservoir vessel is set below drain.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103096539A CN102798571A (en) | 2012-08-28 | 2012-08-28 | Pressure container pressure resistance test process and auxiliary tools thereof |
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| CN2012103096539A CN102798571A (en) | 2012-08-28 | 2012-08-28 | Pressure container pressure resistance test process and auxiliary tools thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487214A (en) * | 2013-09-29 | 2014-01-01 | 江苏天舒电器有限公司 | Nitrogen-charge pressure-maintaining leakage detecting device and method for refrigerating system |
| CN104075946A (en) * | 2014-06-19 | 2014-10-01 | 广州特种机电设备检测研究院 | Overpressure testing device for testing anti-explosion products |
| CN107460304A (en) * | 2017-08-11 | 2017-12-12 | 查特深冷工程系统(常州)有限公司 | A kind of control system and method for strain hardening dependent variable |
| CN110553800A (en) * | 2018-05-31 | 2019-12-10 | 山东泰开高压开关有限公司 | Shell for quick inflation and leakage detection of SF 6 gas and using method thereof |
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| US3895514A (en) * | 1974-08-15 | 1975-07-22 | John D Northup | Bottle testing apparatus |
| JPH02154135A (en) * | 1988-12-06 | 1990-06-13 | Ishikawajima Harima Heavy Ind Co Ltd | Water pressure testing method for container |
| CN2319801Y (en) * | 1997-12-30 | 1999-05-19 | 机械工业部沈阳仪器仪表工艺研究所 | Pressure experiment tucker |
| WO2011052926A2 (en) * | 2009-11-02 | 2011-05-05 | Korea Research Institute Of Standards And Science | Device for testing pressure resistance of vessel and method for testing pressure resistance of vessel by using the device |
| CN202177552U (en) * | 2011-07-27 | 2012-03-28 | 赤峰天源生态建设有限公司 | Device for testing bursting pressure of drip tape |
-
2012
- 2012-08-28 CN CN2012103096539A patent/CN102798571A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3895514A (en) * | 1974-08-15 | 1975-07-22 | John D Northup | Bottle testing apparatus |
| JPH02154135A (en) * | 1988-12-06 | 1990-06-13 | Ishikawajima Harima Heavy Ind Co Ltd | Water pressure testing method for container |
| CN2319801Y (en) * | 1997-12-30 | 1999-05-19 | 机械工业部沈阳仪器仪表工艺研究所 | Pressure experiment tucker |
| WO2011052926A2 (en) * | 2009-11-02 | 2011-05-05 | Korea Research Institute Of Standards And Science | Device for testing pressure resistance of vessel and method for testing pressure resistance of vessel by using the device |
| CN202177552U (en) * | 2011-07-27 | 2012-03-28 | 赤峰天源生态建设有限公司 | Device for testing bursting pressure of drip tape |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487214A (en) * | 2013-09-29 | 2014-01-01 | 江苏天舒电器有限公司 | Nitrogen-charge pressure-maintaining leakage detecting device and method for refrigerating system |
| CN103487214B (en) * | 2013-09-29 | 2015-09-30 | 江苏天舒电器有限公司 | A kind of refrigeration system fills nitrogen pressurize leakage detection apparatus and method |
| CN104075946A (en) * | 2014-06-19 | 2014-10-01 | 广州特种机电设备检测研究院 | Overpressure testing device for testing anti-explosion products |
| CN104075946B (en) * | 2014-06-19 | 2016-08-24 | 广州特种机电设备检测研究院 | A kind of overpotential test device for testing anti-explosion product |
| CN107460304A (en) * | 2017-08-11 | 2017-12-12 | 查特深冷工程系统(常州)有限公司 | A kind of control system and method for strain hardening dependent variable |
| CN107460304B (en) * | 2017-08-11 | 2018-08-14 | 查特深冷工程系统(常州)有限公司 | A kind of control system and method for strain hardening dependent variable |
| CN110553800A (en) * | 2018-05-31 | 2019-12-10 | 山东泰开高压开关有限公司 | Shell for quick inflation and leakage detection of SF 6 gas and using method thereof |
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Application publication date: 20121128 |