CN101694437A - Water jacket and water pressure test device applying same - Google Patents

Water jacket and water pressure test device applying same Download PDF

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Publication number
CN101694437A
CN101694437A CN200910035956A CN200910035956A CN101694437A CN 101694437 A CN101694437 A CN 101694437A CN 200910035956 A CN200910035956 A CN 200910035956A CN 200910035956 A CN200910035956 A CN 200910035956A CN 101694437 A CN101694437 A CN 101694437A
Authority
CN
China
Prior art keywords
water
water jacket
pressure
cover
joint
Prior art date
Application number
CN200910035956A
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Chinese (zh)
Inventor
武孟献
李桦圣
冯存江
Original Assignee
中材科技(苏州)有限公司
Priority date (The priority date 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 date listed.)
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Publication date
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Priority to CN200910035956A priority Critical patent/CN101694437A/en
Publication of CN101694437A publication Critical patent/CN101694437A/en

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Abstract

The invention provides a water jacket which comprises a water jacket cover and a water jacket body that are mutually matched, wherein the water jacket is sealed by adopting a C-shaped gland cover and the water jacket body, and the lower side of the water jacket cover is provided with an elastic cylinder opening gasket used for sealing a gas cylinder opening and the water jacket. The invention has the advantages that the tightness is of the water jacket is good, the tightness of the water jacket and the gas cylinder opening is also good, a thread at the gas cylinder opening after the test is finished is not easy to damage; and compared with the prior art, a water pressure test device applying the water jacket of the invention has simple structure, stable property, high production efficiency and great energy consumption reduction.

Description

Water sleeve is used the water test unit of this water jacket
Technical field
The present invention relates to a kind of outside measurement method hydraulic testing system in gas cylinder by hydrostatic pressure test field, especially relate to a kind of water test unit that uses novel water jacket.
Background technology
Along with applying of economic development and modern technologies, sharply strengthen as class pressure gas consumptions such as rock gas, hydrogen, helium, gas cylinder becomes the first-selected container of this class pressure gas.For volume to weight ratio and the bearing capacity that improves gas cylinder, the technical scheme of generally taking in this area is to take the steel high pressure seamless pipe of high-quality as much as possible, adopt termination spinning necking method to be processed into inner bag, select for use high strength fibre to strengthen resin matrix again and twine on the wall outside the tank and solidify to form one deck composite layer, improve the bearing capacity of existing inner bag.
Gas cylinder by hydrostatic pressure test is the bulk strength satisfactory classic method whether of check gas cylinder, for seamless gas cylinder and composite cylinder, in the hydraulic testing, to measure value of residual volumetric deformation simultaneously, and with the size of rate of residual volumetric deformation, as the standard of judging that gas cylinder is whether qualified.The hydraulic testing is the check-up project that new bottle dispatches from the factory, and also is the main contents of gas cylinder periodic inspection simultaneously.
Existing gas cylinder by hydrostatic pressure test mostly is and adopts complicated, loaded down with trivial details hydraulic testing system and device, defective such as have hydraulic testing system performance instability, production efficiency is low, energy consumption is big.It is just in running order always that high-pressure pump is opened the back, just closes after test is finished, and works long hours and damage easily, and waste a large amount of energy; The water jacket sealing means is that gland bonnet is mechanically pressing sealed, and when gas cylinder entered water jacket, the subsidiary bubble of bottle also was difficult for discharging, and has a strong impact on test figure accuracy and stability, and specification product easily are detected as waste product; The bottle mouth of gas cylinder sealing means is the raw material band sealing, because whorl of bottleneck loads and unloads frock repeatedly, make whorl of bottleneck be mingled with the abundant residues raw material band, whorl of bottleneck cleaning rate reaches 100%, and screw thread is fragile, influence the quality of product, test water is being carried the raw material band of abundant residues secretly in water circulation pipe simultaneously, easily stops up valve, destroys recycling water quality or the like.The above-mentioned defective that influences product quality and production efficiency is that next we need the gordian technique difficult problem that solves.
Summary of the invention
The objective of the invention is to solve above-mentioned technical matters, a kind of good airproof performance is provided, the non-damageable water jacket of bottle mouth of gas cylinder good airproof performance and whorl of bottleneck, and a kind of simple in structure, water test unit that production efficiency is high of this water jacket of application.
Purpose of the present invention is achieved through the following technical solutions:
A kind of water jacket, comprise the water jacket plug and the water jacket body that connect mutually, described water jacket plug comprises affixed loam cake and lower cover mutually, described covering down is provided with one and is used for the threaded connector that is connected with gas cylinder, cover on the described water jacket plug and be provided with a pneumatic joint and a high pressure connection that is used to be connected the water under high pressure pipeline, be equipped with a C type sealing shroud between the loam cake of described water jacket plug and the lower cover, the inboard of described C type sealing shroud is provided with a stop collar, described stop collar and loam cake and lower cover have all been executed a holding force to the two ends of described C type sealing shroud, described stop collar is provided with a Pneumatic three-way, described pneumatic joint is connected with described Pneumatic three-way pipeline, is used to make pressurized air through described pneumatic joint to enter to air drain between described C type sealing shroud and the stop collar.Described water jacket body comprises a cylindrical staving, and described staving is provided with water inlet, freeing port and swelling water interface, and an explosion mouth and a temperature meter that is used to measure water temperature in the water jacket.
Further, described air drain is the gap between C type sealing shroud and the stop collar, and the described C type sealing shroud outside is closely attached on the inwall of described water jacket body.
Further, the fixture splice that the bottom of the lower cover of described water jacket plug is fixed with a terminal pad and fixes with described terminal pad, described threaded connector is fixedly arranged on the lower end of described fixture splice, the inside of described fixture splice and threaded connector is provided with a high-voltage tube movably, one end of described high-voltage tube is connected with joint, the other end is connected with a contact head, the joint of described high-voltage tube is connected with described high pressure connection pipeline, is provided with a rubber-like bottleneck sealing gasket between described contact head and the threaded connector.
Again further, be provided with a sealing gasket between described terminal pad and the lower cover, the outboard end of described sealing gasket is clamped by described terminal pad and lower cover, and the inboard of described sealing gasket is fixed on the contiguous block.
Again further, described contiguous block is provided with a pore, and described pore is connected with the Pneumatic three-way pipeline, the air flue UNICOM of described pore and contiguous block inside, and described pressurized air enters into space between described terminal pad and the sealing gasket by pore and air flue.
Further, described contiguous block is provided with a high pressure water hole, and described high pressure water hole is connected with the high pressure connection pipeline, the water channel UNICOM of described high pressure water hole and contiguous block inside, and parallel connection passes to described joint, and the described joint outside is threaded with contiguous block.
The present invention has also disclosed a kind of water test unit of using described water jacket, comprise a high-pressure pump, the water delivering orifice of described high-pressure pump connects with the high pressure connection of described water jacket plug by pressure duct, the swelling water interface of described water jacket body is connected with a graduated cylinder pipeline, this pipeline is provided with a swelling water solenoid valve that plays on-off action, and the keying of described high-pressure pump and swelling water solenoid valve is controlled by a controller.Described pressure duct is provided with blowdown valve and the sensor by described controller control.Described pressure duct is provided with a stop valve and a check (non-return) valve.
Beneficial effect of the present invention is mainly reflected in: the water jacket sealing is fine, and water jacket and bottle mouth of gas cylinder sealing are also fine, and the bottle mouth of gas cylinder screw thread is not fragile behind the warranty test; And use the water test unit of water jacket of the present invention simple in structure, stable performance, production efficiency height, energy consumption also reduce greatly than prior art.
Description of drawings
Below in conjunction with accompanying drawing technical solution of the present invention is described further:
Fig. 1: the synoptic diagram of water jacket plug of the present invention.
Fig. 2: the synoptic diagram of water jacket body of the present invention.
Fig. 3: the synoptic diagram of water test unit of the present invention.
Embodiment
The present invention has disclosed a kind of water jacket, comprises the water jacket plug (Fig. 1) and the water jacket body (Fig. 2) that connect mutually.
As shown in Figure 1, water jacket plug 10 comprises use screw affixed loam cake 101 and lower cover 102 mutually.Connect on the described loam cake 101 and be provided with a pneumatic joint that is used to connect compressed air line 103, a high pressure connection 104 that is used to connect the water under high pressure pipeline, and suspension ring that are used to lift.Be equipped with a C type sealing shroud 105 between the loam cake 101 of described water jacket plug 10 and the lower cover 102, the inboard envelope of described C type sealing shroud 105 is provided with the stop collar 106 of a rigidity, this stop collar 106 has all been executed a holding force with the two ends of loam cake 101 and 102 pairs of described C type sealing shrouds 105 of lower cover, so just the two ends of this C type sealing shroud 105 has been clamped.
Described stop collar 106 is provided with a Pneumatic three-way 107, and described pneumatic joint 103 is connected with these Pneumatic three-way 107 pipelines, is used to make pressurized air through described pneumatic joint to enter to air drain between described C type sealing shroud 105 and the stop collar 106.In this example, described air drain is the gap between C type sealing shroud and the stop collar.
The fixture splice 114 that the bottom of the lower cover 102 of described water jacket plug 10 is fixed with a terminal pad 110 and fixes with described terminal pad, the lower end of described fixture splice 114 is installed with a threaded connector 115, and described threaded connector 115 is used for being threaded with the bottleneck internal thread of described gas cylinder.
The inside of described fixture splice 114 and threaded connector 115 is provided with a high-voltage tube 113 movably, one end of described high-voltage tube 113 is connected with joint 112, the other end is connected with a contact head 117, is provided with a rubber-like bottleneck sealing gasket 116 between described contact head 117 and the threaded connector 115.
Be provided with a sealing gasket 109 between described terminal pad 110 and the lower cover 102, the outboard end of described sealing gasket 109 is clamped with lower cover 102 by described terminal pad 110, and the inboard of described sealing gasket 109 is fixed on the contiguous block 111.Described contiguous block 111 is provided with a pore 108, described pore 108 is connected with Pneumatic three-way 107 pipelines, the air flue UNICOM of described pore 108 and contiguous block 111 inside, described pressurized air enters into space between described terminal pad 110 and the sealing gasket 109 by pore and air flue.
Described contiguous block 111 is provided with a high pressure water hole 118, described high pressure water hole 118 is connected with high pressure connection 104 pipelines, the water channel UNICOM of described high pressure water hole 118 and contiguous block inside, parallel connection passes to described joint 112, and described joint 112 outsides are threaded fixing with contiguous block 111.
As shown in Figure 2, water jacket body 20 comprises a cylindrical staving 201, is used to hold gas cylinder to be measured and test water.Described staving 201 is provided with water inlet 203, freeing port 206 and swelling water interface 204, and an explosion mouth 205 and a temperature meter 209 that is used to measure water temperature in the water jacket.Described water inlet 203, freeing port 206 are used for to described staving 201 water fillings or draining.When water jacket staving pressure was stressed greater than the explosion mouthpiece, the explosion mouth was opened automatically and is shed water jacket staving internal pressure.In conjunction with shown in Figure 3, described swelling water interface 204 is connected with graduated cylinder 9 by swelling water pipeline 8.When the hydraulic testing is carried out, water under high pressure enters gas cylinder by pipeline, the gas cylinder internal pressure increases, gas cylinder generation volumetric expansion, because water jacket is closed container at this moment, gas cylinder expands so water jacket is inner, the test water that is squeezed, enter the swelling water pipeline by the swelling water interface, enter weigh scale, computed volume at last.
The fixed head 207 that the outer upper of described staving 201 is provided with a water receiver 202 and is used to connect staving and water receiver has a water inlet 208 on this water receiver 202.After gas cylinder entered the water jacket body, the water that overflows was discharged after entering water receiver.
The present invention has also disclosed a kind of water test unit of using described water jacket, as shown in Figure 3, comprise a high-pressure pump 4, described high-pressure pump 4 has a water inlet 41 and a water delivering orifice 42, this water delivering orifice 42 connects with the high pressure connection of described water jacket plug by pressure duct 5, the swelling water interface of described water jacket body is connected with a graduated cylinder 9 by swelling water pipeline 8, this pipeline 8 is provided with a swelling water solenoid valve 7 that plays on-off action, and the keying of described high-pressure pump 4 and swelling water solenoid valve is by a controller 12 controls.Described pressure duct 5 is provided with blowdown valve 6 and the sensor 11 by described controller 12 controls.Also be provided with a stop valve 14 and a check (non-return) valve 15 on the described pressure duct.
Before on-test, at first with compressed air hose and high-pressure water hose respectively at being connected with high pressure connection 104 with the pneumatic joint 103 of water jacket plug 10.
During on-test, the compressed-air actuated electromagnetic valve of control is opened in controller 12 program run automatically, and pressurized air enters water jacket plug from pneumatic joint 103, by Pneumatic three-way joint 107, is divided into two parts:
Part pressurized air enters the air drain in the middle of sealing shroud 105 and the stop collar 106, because sealing shroud is compressed by last dish 101 and lower wall 102 at two ends up and down, along with the air that enters air drain increases, sealing shroud 105 deforms, thereby expand, be closely attached on the inwall of described water jacket body up to the described C type sealing shroud outside.Along with the generation of expanding, the unnecessary test water in water jacket body 20 inside is squeezed out the water jacket body at leisure, and a large amount of bubbles of bringing into when entering water jacket by gas cylinder, along with the expansion of sealing shroud 105, also all be squeezed out water jacket body 20, realize the inner no bubble of water jacket, the warranty test data are accurate.
Part pressurized air is connected to pore 108 by flexible pipe, because be connected all around dish 110 and the lower wall 102 of sealing gasket 109 compress, along with the compressed-air actuated increase that enters pore 108, sealing gasket 109 expands, the contiguous block 111 that is connected with sealing gasket 109 is by sealing pad 109 jack-up at leisure, because contiguous block 111 is connected with high-voltage tube 113 by joint 112, rising along with contiguous block 111, high-voltage tube 113 also rises thereupon, because high-voltage tube 113 1 ends are touched 117 and are threaded, after so high-voltage tube 113 rises, bottleneck sealing gasket 116 is touched 117 extruding and deforms, and along with pulling force increases, distortion increases, closely contact again with bottle mouth of gas cylinder at last, reach sealing effectiveness.Because bottleneck sealing gasket 116 deforms, after on-test, high-pressure pump boosts, and increased with water pressure by gas testing bottle closed test, and bottleneck sealing gasket 116 is also had a thrust, and sealing gasket contacts more closely at the screw thread mouth place like this, and sealing effectiveness is fine.Bottleneck sealing is for the gas cylinder closed test water after preventing to pressurize does not leak, like this when high-pressure pump stops to boost after, and well realization gas cylinder by hydrostatic pressure test pressurize.
Open compressed air valve behind the door, realize the sealing of water jacket and bottleneck, open swelling water solenoid valve 7, allow the interior graduated cylinder of water jacket body 20 inner experimental waters and balance communicate, and steadily, high-pressure pump begins to boost, and water under high pressure enters water jacket plug 10 by high pressure connection 103, enter high-voltage tube 113 by high pressure water hole 118 again, enter then and be subjected to gas testing bottle inside.
After reaching set pressure, high-pressure pump stops to boost, and enters packing state.Along with pressure constantly increases, deformed gradually by gas testing bottle 3, the water in the water jacket is expressed in the graduated cylinder 9 by swelling water pipeline 8, computer writes down deflection this moment automatically.
After pressurize finishes, open pressure relief valve 6, water under high pressure in the pressure duct is realized pressure release by pressure relief valve, be subjected to gas testing bottle closed test water to recover normal pressure, off-test, venting along with pressure, water in the graduated cylinder 9 is got back in the water jacket again, but because gas cylinder is subjected to too high compression swelling, distortion took place, so after the inner recovery of the final gas cylinder normal pressure, the weight of water in the graduated cylinder when weight of the water in the graduated cylinder deducts on-test, just can converse residual deformation value Δ V ', all deformation value Δ V that the gas cylinder distortion is expanded and during divided by pressurize with residual deformation value Δ V ' just can calculate the rate of residual η (η=Δ V '/Δ V * 100) that the hydraulic testing needs.These calculating computer programs carry out automatically, and final test finishes the data that meeting display result rate of residual, all deformation, residual deformation amount etc. need.
After the off-test, Automatic Program closes compression air electromagnetic valve, the off-test lamp lights, and pulls up compression gas pipe, and the sealing shroud that expands and sealing gasket recover original state, and sealing finishes, and pulls up high-pressure hose, hangs out to be subjected to gas testing bottle, off-test in the water jacket.
Science of the present invention, the principle of having used pressurized air that rubber sleeve is expanded dexterously are as the sealing means of water jacket plug and water jacket body.Such good sealing effect be the more important thing is the generation that can reduce bubble, guarantees the accuracy of testing.
The bottleneck sealing gasket of the present invention 116 general polyamine fat materials that adopt are made, and its elastic performance is strong, expand at the whorl of bottleneck place and reach sealing effectiveness, therefore can not cause damage to whorl of bottleneck.After having adopted the bottleneck sealing means of science, whorl of bottleneck cleaning rate is reduced to 0% by original 100%, and the whorl of bottleneck deformation rate is zero, and sealing effectiveness is also better.
Among the present invention, whenever do gas cylinder by hydrostatic pressure test one time, only in pressure rising time work, the most of the time high-pressure pump is in holding state to high-pressure pump 4, reduced high-pressure pump degree of fatigue, increase serviceable life, reduced the power consumption of high-pressure pump work in a large number.
The present invention still has multiple concrete embodiment, and all employings are equal to replacement or equivalent transformation and all technical schemes of forming, all drop within the scope of protection of present invention.

Claims (10)

1. water jacket, comprise the water jacket plug and the water jacket body that connect mutually, described water jacket plug comprises affixed loam cake and lower cover mutually, described covering down is provided with one and is used for the threaded connector that is connected with gas cylinder, it is characterized in that: cover on the described water jacket plug and be provided with a pneumatic joint and a high pressure connection that is used to be connected the water under high pressure pipeline, be equipped with a C type sealing shroud between the loam cake of described water jacket plug and the lower cover, the inboard of described C type sealing shroud is provided with a stop collar, described stop collar and loam cake and lower cover have all been executed a holding force to the two ends of described C type sealing shroud, described stop collar is provided with a Pneumatic three-way, described pneumatic joint is connected with described Pneumatic three-way pipeline, is used to make pressurized air through described pneumatic joint to enter to air drain between described C type sealing shroud and the stop collar.
2. water jacket according to claim 1 is characterized in that: described air drain is the gap between C type sealing shroud and the stop collar, and the described C type sealing shroud outside is closely attached on the inwall of described water jacket body.
3. water jacket according to claim 1, it is characterized in that: the fixture splice that the bottom of the lower cover of described water jacket plug is fixed with a terminal pad and fixes with described terminal pad, described threaded connector is fixedly arranged on the lower end of described fixture splice, the inside of described fixture splice and threaded connector is provided with a high-voltage tube movably, one end of described high-voltage tube is connected with joint, the other end is connected with a contact head, the joint of described high-voltage tube is connected with described high pressure connection pipeline, is provided with a rubber-like bottleneck sealing gasket between described contact head and the threaded connector.
4. water jacket according to claim 3 is characterized in that: be provided with a sealing gasket between described terminal pad and the lower cover, the outboard end of described sealing gasket is clamped by described terminal pad and lower cover, and the inboard of described sealing gasket is fixed on the contiguous block.
5. water jacket according to claim 4, it is characterized in that: described contiguous block is provided with a pore, described pore is connected with the Pneumatic three-way pipeline, the air flue UNICOM of described pore and contiguous block inside, described pressurized air enters into space between described terminal pad and the sealing gasket by pore and air flue.
6. water jacket according to claim 5, it is characterized in that: described contiguous block is provided with a high pressure water hole, described high pressure water hole is connected with the high pressure connection pipeline, the water channel UNICOM of described high pressure water hole and contiguous block inside, parallel connection passes to described joint, and the described joint outside is threaded with contiguous block.
7. water jacket according to claim 1 is characterized in that: described water jacket body comprises a cylindrical staving, and described staving is provided with water inlet, freeing port and swelling water interface, and an explosion mouth and a temperature meter that is used to measure water temperature in the water jacket.
8. an application rights requires the water test unit of 1 described water jacket, it is characterized in that: comprise a high-pressure pump, the water delivering orifice of described high-pressure pump connects with the high pressure connection of described water jacket plug by pressure duct, the swelling water interface of described water jacket body is connected with a graduated cylinder pipeline, this pipeline is provided with a swelling water solenoid valve that plays on-off action, and the keying of described high-pressure pump and swelling water solenoid valve is controlled by a controller.
9. water test unit according to claim 8 is characterized in that: described pressure duct is provided with blowdown valve and the sensor by described controller control.
10. water test unit according to claim 9 is characterized in that: described pressure duct is provided with a stop valve and a check (non-return) valve.
CN200910035956A 2009-09-28 2009-09-28 Water jacket and water pressure test device applying same CN101694437A (en)

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Application Number Priority Date Filing Date Title
CN200910035956A CN101694437A (en) 2009-09-28 2009-09-28 Water jacket and water pressure test device applying same

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Application Number Priority Date Filing Date Title
CN200910035956A CN101694437A (en) 2009-09-28 2009-09-28 Water jacket and water pressure test device applying same

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102353581A (en) * 2011-07-01 2012-02-15 无锡昌华机电制造有限公司 Inflating rubber ring type sealing device for water jacket of external testing method for hydrostatic test of gas cylinder
CN102798517A (en) * 2011-05-24 2012-11-28 海洋王照明科技股份有限公司 Lamp testing fixtures structure
CN103499484A (en) * 2013-09-18 2014-01-08 中材科技(苏州)有限公司 Pressure testing seal fixture of automobile LNG (Liquefied Natural Gas) cylinder
CN103926150A (en) * 2014-05-06 2014-07-16 天津市长龙液化石油气设备制造厂 Automatic testing machine of gas cylinder hydrostatic test
CN104132960A (en) * 2014-07-04 2014-11-05 中国海洋石油总公司 Test system for simulating thermal insulation performance of pipeline under deepwater environment
CN104198293A (en) * 2014-09-18 2014-12-10 江苏中宏机械制造有限公司 Gas cylinder hydraulic bursting test device with functions of speed regulation and continuous water replenishing
CN104655493A (en) * 2015-02-10 2015-05-27 杭州东贝机电设备有限公司 Full-automatic air cylinder outside measuring method hydraulic test device
CN105606441A (en) * 2015-12-22 2016-05-25 新兴能源装备股份有限公司 Water jacket plug device for gas cylinder hydrostatic test equipment
CN106153332A (en) * 2016-09-23 2016-11-23 江西洪都航空工业集团有限责任公司 A kind of ball cover structure pressurising test fixture
CN108956315A (en) * 2018-07-05 2018-12-07 消防贸易私营有限公司 A kind of fire extinguisher bottle pressure resistant testing device and test method
CN109738273A (en) * 2018-12-17 2019-05-10 余姚市超成机械制造有限公司 Pneumatic drainage arrangement and its water discharge method on a kind of steel cylinder pressure-detecting device

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102798517B (en) * 2011-05-24 2015-01-07 海洋王照明科技股份有限公司 Lamp testing fixtures structure
CN102798517A (en) * 2011-05-24 2012-11-28 海洋王照明科技股份有限公司 Lamp testing fixtures structure
CN102353581A (en) * 2011-07-01 2012-02-15 无锡昌华机电制造有限公司 Inflating rubber ring type sealing device for water jacket of external testing method for hydrostatic test of gas cylinder
CN103499484A (en) * 2013-09-18 2014-01-08 中材科技(苏州)有限公司 Pressure testing seal fixture of automobile LNG (Liquefied Natural Gas) cylinder
CN103499484B (en) * 2013-09-18 2015-07-29 中材科技(苏州)有限公司 The pressure test sealing frock of automobile-used LNG gas cylinder
CN103926150A (en) * 2014-05-06 2014-07-16 天津市长龙液化石油气设备制造厂 Automatic testing machine of gas cylinder hydrostatic test
CN103926150B (en) * 2014-05-06 2015-11-25 天津市长龙宏业燃气设备有限公司 Gas cylinder by hydrostatic pressure test automatic test machine
CN104132960A (en) * 2014-07-04 2014-11-05 中国海洋石油总公司 Test system for simulating thermal insulation performance of pipeline under deepwater environment
CN104132960B (en) * 2014-07-04 2017-02-15 中海油能源发展股份有限公司 Test system for simulating thermal insulation performance of pipeline under deepwater environment
CN104198293A (en) * 2014-09-18 2014-12-10 江苏中宏机械制造有限公司 Gas cylinder hydraulic bursting test device with functions of speed regulation and continuous water replenishing
CN104655493A (en) * 2015-02-10 2015-05-27 杭州东贝机电设备有限公司 Full-automatic air cylinder outside measuring method hydraulic test device
CN105606441A (en) * 2015-12-22 2016-05-25 新兴能源装备股份有限公司 Water jacket plug device for gas cylinder hydrostatic test equipment
CN106153332A (en) * 2016-09-23 2016-11-23 江西洪都航空工业集团有限责任公司 A kind of ball cover structure pressurising test fixture
CN108956315A (en) * 2018-07-05 2018-12-07 消防贸易私营有限公司 A kind of fire extinguisher bottle pressure resistant testing device and test method
CN108956315B (en) * 2018-07-05 2020-07-31 消防贸易私营有限公司 Pressure resistance testing device and method for fire extinguisher bottle
CN109738273A (en) * 2018-12-17 2019-05-10 余姚市超成机械制造有限公司 Pneumatic drainage arrangement and its water discharge method on a kind of steel cylinder pressure-detecting device

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