CN103697284A - Pressure test device for pipe fittings - Google Patents
Pressure test device for pipe fittings Download PDFInfo
- Publication number
- CN103697284A CN103697284A CN201310731752.0A CN201310731752A CN103697284A CN 103697284 A CN103697284 A CN 103697284A CN 201310731752 A CN201310731752 A CN 201310731752A CN 103697284 A CN103697284 A CN 103697284A
- Authority
- CN
- China
- Prior art keywords
- pressure testing
- pipe
- seal ring
- land
- pressure
- Prior art date
Links
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 239000010410 layers Substances 0.000 claims description 15
- 239000003921 oils Substances 0.000 claims description 7
- 230000000875 corresponding Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 6
- 239000000463 materials Substances 0.000 abstract description 3
- 239000011901 water Substances 0.000 description 8
- 280000711007 Swivel companies 0.000 description 7
- 238000000034 methods Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000001808 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reactions Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 230000000087 stabilizing Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 210000001513 Elbow Anatomy 0.000 description 1
- 210000002445 Nipples Anatomy 0.000 description 1
- 239000007789 gases Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001195 polyisoprenes Polymers 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000002699 waste materials Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2853—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipe joints or seals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2884—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for welds
Abstract
Description
Technical field
The present invention relates to a kind of pipe pressure test device.
Background technique
In the prior art, the pressure testing of the pipe fittings such as perforate, threeway for shutoff, insulating short section, receiving ball tube is generally its two ends end socket of burn-oning, and wherein on the end socket of one end, is installed into water pipe and pressure gauge, and the end socket of being burn-on in two ends again after pressure testing finishes prescinds.Also have a kind of Pressure test program for the reserved seal face in threeway two ends (approximately 100mm), by machined into, is required to its circularity and degree of finish, after pressure testing completes, need a pressure testing end face excision, and on lathe, process end face, reach delivery requirements.
Existing technological scheme has following shortcoming: 1) need the nonstandard end socket of customization, waste of material is serious; 2) welding regenerates welding stress to heat treated elbow, affects pipe fitting quality; 3) welding job amount is large, and efficiency is low; 4) manufacturing procedure is many, and difficulty is large.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of pipe pressure test device that material, pressure testing efficiency are high, do not need welding plug and pipeline tapping of saving.
Technological scheme of the present invention is achieved in that
A pipe pressure test device, comprises pressure testing cylinder and the block head coordinating with pressure testing cylinder; Described pressure testing cylinder is both ends open or an end opening, and pressure testing cylinder inwall is provided with intake pipe and the spill pipe of the inside and outside both sides of conducting pressure testing cylinder; Described block head comprises sealing configuration and the land that is provided with seal ring; Described sealing configuration is placed on pressure testing cylinder outside, and described pressure testing drum outer wall is provided with screens projection or the screens step coordinating with sealing configuration; Described land is connected with pressure testing cylinder by locking mechanism, and land is connected with sealing configuration.
Above-mentioned pipe pressure test device, described sealing configuration comprises two-layer flange platen and is arranged at the seal ring between two-layer flange platen; Described flange platen and seal ring are placed on pressure testing cylinder outside; Wherein one deck flange platen is blocked by screens projection or screens step, and another layer of flange platen contacts with land; Can be axially relatively movable between two-layer flange platen, described seal ring inner side radially contacts with described pressure testing drum outer wall.
Above-mentioned pipe pressure test device, on described seal ring, each several part outer diameter equates and seal ring interior thickness is less than the axial two-end thickness of seal ring.Described thickness is for to want the outer radius of calculating section present position to deduct inside radius.
Above-mentioned pipe pressure test device, one end that described flange platen contacts with seal ring is provided with annular table terrace, and seal ring coordinates with the annular table terrace of flange platen; On one end that described land contacts with flange platen, be also provided with annular table terrace, coordinate with the annular table terrace of land with land engagement flange platen.
Above-mentioned pipe pressure test device, described locking mechanism comprises the inner bolt hole that is arranged on pressure testing cylinder, be positioned on land and the through hole of described inner bolt hole corresponding position and the bolt coordinating with described inner bolt hole.
Above-mentioned pipe pressure test device, also comprises pre-tightening apparatus, and described pre-tightening apparatus comprises hydraulic station and the oil hydraulic cylinder being communicated with described hydraulic station by hydraulic tube, and the piston rod end of described oil hydraulic cylinder is connected with land.
Pressure device of the present invention is for the harmless pressure testing of the pipe fittings such as threeway, insulating short section and receiving ball tube; Tool has the following advantages: 1,, without welding end socket, pipe fitting is not damaged; 2, cost-saving, raise the efficiency; 3, compact, easy to operate, the safety of complete machine.
Accompanying drawing explanation
Fig. 1 is that pipe pressure test device of the present invention is for the structural representation of threeway pressure testing.
Fig. 2 is that pipe pressure test device of the present invention is for the structural representation of pipe-line wrapping pipe nipple pressure testing.
Fig. 3 is that pipe pressure test device of the present invention is for the structural representation of receiving ball tube.
Fig. 4 is the round inner structure enlarged view in Fig. 2.
In above-mentioned accompanying drawing, 1, pressure testing cylinder; 2, block head; 3, threeway; 4, insulating short section; 5, receiving ball tube; 11, intake pipe; 12, spill pipe; 21, seal ring; 22, land; 23, flange platen; 24, bolt.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, the invention discloses a kind of pipe pressure test device, comprise pressure testing cylinder 1 and the block head coordinating with pressure testing cylinder 1; Pressure testing cylinder 1 is both ends open or an end opening, and the opening end of pressure testing cylinder 1 is by block head shutoff, thereby guarantees pressure testing drum outer wall and treat to form airtight cavity between the pipe fitting of pressure testing.Pressure testing cylinder 1 inwall is provided with intake pipe 11 and the spill pipe 12 of conducting pressure testing cylinder 1 inside and outside both sides.Intake pipe 11 and spill pipe 12 difference Bonding pressure testing apparatuss (being the pressure test equipment using in prior art); The water injecting pipe of intake pipe 11 Bonding pressure testing apparatuss, spill pipe 12 is connected with bleed valve with the pressure gauge of pressure test equipment.Block head comprises sealing configuration and the land 22 that is provided with seal ring 21; Sealing configuration is placed on pressure testing cylinder 1 outside, and pressure testing cylinder 1 outer wall is provided with screens projection or the screens step coordinating with sealing configuration; Position projection or screens step block sealing configuration, thereby the deformation that is conducive to realize seal ring 21 is filled up pressure testing pipe 1 outer wall and treats the gap between pressure testing pipe inwall, assurance seal.Land 22 is connected with pressure testing cylinder 1 by locking mechanism, and land 22 is connected with sealing configuration; Under the effect of compression device, land 22 forms compressing with screens projection or the screens step of pressure testing cylinder 1 to sealing configuration, thereby makes seal ring 21 deformation, fills up pressure testing pipe 1 outer wall and treats the gap between pressure testing pipe inwall, guarantees seal.
In Fig. 1, Fig. 2 and Fig. 3, sealing configuration comprises two-layer flange platen 23 and is arranged at the seal ring 21 between two-layer flange platen; Described flange platen 23 is placed on pressure testing cylinder 1 outside with seal ring 21; Wherein one deck flange platen 23 is blocked by screens projection or screens step, and another layer of flange platen 23 contacts with land 22; Can be axially relatively movable between two-layer flange platen 23, described seal ring 21 inner side radially contacts with described pressure testing cylinder 1 outer wall.Seal ring 21 is made by elastic caoutchouc.Under the effect of compression device, land 22 forms compressing to two-layer flange platen 23 respectively with screens projection or the screens step of pressure testing cylinder 1, two-layer flange platen 23 is drawn close to mutual close direction, force seal ring 21 to produce deformation, fill up pressure testing pipe 1 outer wall and treat the gap between pressure testing pipe inwall, guaranteeing to form the seal of airtight chamber.
On seal ring 21 outer walls, each several part outer diameter equates and seal ring 21 interior thicknesses are less than the axial two-end thickness of seal ring 21.So design, when seal ring 21 is subject to 23 extruding of two flange platens, according to mechanics principle, seal ring 21 middle parts are more easily to away from the axial Direction distortion of seal ring 21 (i.e. the inwall of pressure testing pipe is treated in extruding), and seal ring 21 two ends (part contact with flange platen 23) is more easily to the close axial Direction distortion of seal ring 21; So, guaranteed that seal ring 21 can better realize airtight effect.
In Fig. 1, Fig. 2 and Fig. 3, one end that flange platen 23 contacts with seal ring 21 is provided with annular table terrace, and seal ring 21 coordinates with the annular table terrace of flange platen 23; On one end that described land 22 contacts with flange platen 23, be also provided with annular table terrace, the flange platen 23 contacting with land 22 coordinates with the annular table terrace of land 22.Seal ring 21 coordinates with the annular table terrace of flange platen 23, makes first seal ring 21 and the area of contact of flange platen 23 increase, and increases seal ring 21 and the leakproofness that flange platen 23 contacts, and has promoted sealing effect; On the other hand, the annular table terrace of two-layer flange platen 23, has limited the position of seal ring 21, makes to install convenient, the quick working efficiency that promoted.And flange platen 23 coordinates with the annular table terrace of land 22, define the link position of land 22 and flange platen 23, while guaranteeing to install, on flange platen 23 stressed evenly, and then guaranteed seal ring 21 uniform stressed deformation, avoid the consequences such as gas leakage that cause due to deformation inequality that seal ring 21 discontinuity produce.
In Fig. 1, Fig. 2 and Fig. 3, also show locking mechanism, described locking mechanism comprises the inner bolt hole that is arranged on pressure testing cylinder 1, is positioned at through hole corresponding with described inner bolt hole position on land 22 and the bolt 24 coordinating with described inner bolt hole.During use, bolt 24 is through being threaded with the inner bolt hole on pressure testing cylinder 1 by rear, and the head of bolt 24 is stuck on land 22 side away from pressure testing cylinder 1.Swivel bolt 24 makes land 22 compress/loosen pressure testing cylinder 1, thereby realizes the process of attaching/detaching pressure testing device.
Above-mentioned locking mechanism also comprises pre-tightening apparatus (be and illustrate in figure), and pre-tightening apparatus comprises hydraulic station and the oil hydraulic cylinder being communicated with described hydraulic station by hydraulic tube, and the piston rod end of described oil hydraulic cylinder is connected with land 22.By the control of hydraulic station, oil hydraulic cylinder shrinks, and drives land 22 pretension flange platens 23, and flange platen 23 compresses seal 21, make seal ring radial deformation, are adjacent to treating pressure testing pipe inwall.
Below for pipe pressure test device of the present invention, apply to the pressure-measuring method of different pipe fittings:
Embodiment's 1 pipe pressure test device is for threeway pressure testing
Pressure testing step is as follows:
The pressure testing pipe 1 of a, employing both ends open is installed in the straight tube of threeway 3, if this threeway 3 also needs the perforate that block head is not installed to block for perforate threeway; Then flange platen 23, seal ring 21, land 22 are enclosed within on the outer wall at pressure testing pipe 1 two ends according to default mode, construction bolt 24, swivel bolt 24 makes flange platen 23 compresses seal 21, seal ring 21 radial deformations, thereby tightly fit with threeway 3 inwalls, pressure testing pipe 1 outer wall and threeway 3 inwalls form an airtight cavity like this.(as shown in Figure 1) if desired pretension also needed to use pre-tightening apparatus to carry out pretension setting before swivel bolt 24;
B, the note hose coupling that pressure instrumentataion is drawn and intake pipe 11 conductings, pressure gauge and the outlet valve of spill pipe 12 and pressure instrumentataion, open outlet valve, by intake pipe 11 to pressure testing cylinder 1 inwall with treat water filling in closed cavity that pressure testing pipe inwall forms, after filling with, water intake 11 is switched to the hydraulic test pump of pressure instrumentataion and is connected;
Whether c, inspection pressure testing device leak, and if any leaking, need continue to screw the bolt at two ends, observe land 22 and treat the gap between pressure testing pipe inwall, adjust consistent;
D, start hydraulic test pump pressure testing, as block head in process has leakage, need to continue to screw bolt 24 after pressure release and make seal ring 21 continue distortion, or check and adjust land 22 and treat the gap between pressure testing pipe inwall;
E, continuing to boost to test pressure voltage stabilizing, whether have seepage or leakage, and do respective record if observing weld seam, sealing position and other outer surface portions treated on pressure testing pipe;
After f, observation, test ending, close pressure instrumentataion, open outlet valve pressure release draining, after treating pressure release draining, counterrotating bolt 24, completes whole decompression work pressure tests after pipe pressure test device is removed.
Embodiment's 2 pipe pressure test devices are for insulating short section pressure testing
Pressure testing step is as follows:
The pressure testing pipe 1 of a, employing both ends open is installed in insulating short section 4; Then flange platen 23, seal ring 21, land 22 are enclosed within on the outer wall at pressure testing pipe 1 two ends according to default mode, construction bolt 24, swivel bolt 24 makes flange platen 23 compresses seal 21, seal ring 21 radial deformations, thereby tightly fit with insulating short section 4 inwalls, pressure testing pipe 1 outer wall and insulating short section 4 inwalls form an airtight cavity like this.(as shown in Figure 2 and Figure 4) if desired pretension also needed to use pre-tightening apparatus to carry out pretension setting before swivel bolt 24;
B, the note hose coupling that pressure instrumentataion is drawn and intake pipe 11 conductings, pressure gauge and the outlet valve of spill pipe 12 and pressure instrumentataion, open outlet valve, by intake pipe 11 to pressure testing cylinder 1 inwall with treat water filling in closed cavity that pressure testing pipe inwall forms, after filling with, water intake 11 is switched to the hydraulic test pump of pressure instrumentataion and is connected;
Whether c, inspection pressure testing device leak, and if any leaking, need continue to screw the bolt at two ends, observe land 22 and treat the gap between pressure testing pipe inwall, adjust consistent;
D, start hydraulic test pump pressure testing, as block head in process has leakage, need to continue to screw bolt 24 after pressure release and make seal ring 21 continue distortion, or check and adjust land 22 and treat the gap between pressure testing pipe inwall;
E, continuing to boost to test pressure voltage stabilizing, whether have seepage or leakage, and do respective record if observing weld seam, sealing position and other outer surface portions treated on pressure testing pipe;
After f, observation, test ending, close pressure instrumentataion, open outlet valve pressure release draining, after treating pressure release draining, counterrotating bolt 24, completes whole decompression work pressure tests after pipe pressure test device is removed.
Embodiment's 3 pipe pressure test devices are for receiving ball tube pressure testing
Pressure testing step is as follows:
The pressure testing pipe 1 of a, employing one end opening is installed in receiving ball tube 5, and opening end is near the opening of receiving ball tube 5; The not opening end of pressure testing pipe 1 coordinates with receiving ball tube 5 Inner Dimensions, prevents that pressure testing pipe 1 from going out the outlet of receiving ball tube 5; Then flange platen 23, seal ring 21, land 22 are enclosed within on the outer wall at pressure testing pipe 1 two ends according to default mode, construction bolt 24, swivel bolt 24 makes flange platen 23 compresses seal 21, seal ring 21 radial deformations, thereby tightly fit with receiving ball tube 5 inwalls, pressure testing pipe 1 outer wall and receiving ball tube 5 inwalls form an airtight cavity like this.(as shown in Figure 3) if desired pretension also needed to use pre-tightening apparatus to carry out pretension setting before swivel bolt 24;
B, the note hose coupling that pressure instrumentataion is drawn and intake pipe 11 conductings, pressure gauge and the outlet valve of spill pipe 12 and pressure instrumentataion, open outlet valve, by intake pipe 11 to pressure testing cylinder 1 inwall with treat water filling in closed cavity that pressure testing pipe inwall forms, after filling with, water intake 11 is switched to the hydraulic test pump of pressure instrumentataion and is connected;
Whether c, inspection pressure testing device leak, and if any leaking, need continue to screw the bolt at two ends, observe land 22 and treat the gap between pressure testing pipe inwall, adjust consistent;
D, start hydraulic test pump pressure testing, as block head in process has leakage, need to continue to screw bolt 24 after pressure release and make seal ring 21 continue distortion, or check and adjust land 22 and treat the gap between pressure testing pipe inwall;
E, continuing to boost to test pressure voltage stabilizing, whether have seepage or leakage, and do respective record if observing weld seam, sealing position and other outer surface portions treated on pressure testing pipe;
After f, observation, test ending, close pressure instrumentataion, open outlet valve pressure release draining, after treating pressure release draining, counterrotating bolt 24, completes whole decompression work pressure tests after pipe pressure test device is removed.
Above-described embodiment is only for the invention example is clearly described, and the not restriction to the invention embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description, exhaustive without also giving all mode of executions here.And the apparent variation of being amplified out thus or change are still among the protection domain in the invention claim.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310731752.0A CN103697284B (en) | 2013-12-18 | 2013-12-18 | A kind of pipe pressure test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310731752.0A CN103697284B (en) | 2013-12-18 | 2013-12-18 | A kind of pipe pressure test device |
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| Publication Number | Publication Date |
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| CN103697284A true CN103697284A (en) | 2014-04-02 |
| CN103697284B CN103697284B (en) | 2015-07-29 |
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| CN201310731752.0A CN103697284B (en) | 2013-12-18 | 2013-12-18 | A kind of pipe pressure test device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833460A (en) * | 2015-05-04 | 2015-08-12 | 天津博益气动股份有限公司 | Cylindrical container door air tightness detection tool |
| CN105300805A (en) * | 2015-11-26 | 2016-02-03 | 斯耐特(湖北)工业制造有限公司 | Ultrahigh hydraulic test table for valves |
| CN105334038A (en) * | 2015-11-26 | 2016-02-17 | 斯耐特(湖北)工业制造有限公司 | Valve hydraulic test system |
| CN106525352A (en) * | 2016-12-21 | 2017-03-22 | 北京灵铱科技有限公司 | Detection fixture device used for detecting sealing of welding part |
| CN106525353A (en) * | 2016-11-18 | 2017-03-22 | 贵州望江气体有限公司 | High-pressure gas-filled connection pipe defect detection method |
| CN106996901A (en) * | 2017-03-23 | 2017-08-01 | 中国海洋石油总公司 | Girth joint pressure test tool and pressure-measuring method in pipe |
| CN107271262A (en) * | 2017-07-18 | 2017-10-20 | 中国海洋石油总公司 | Single weld seam pressure testing device in one kind pipe |
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| GB2242530A (en) * | 1990-03-27 | 1991-10-02 | Int Pipeline Products Ltd | Pressure testing of pipeline welds |
| US20030029227A1 (en) * | 2000-06-27 | 2003-02-13 | Horst Gotowik | Apparatus for testing or isolating a segment of pipe |
| CN101915647A (en) * | 2010-08-25 | 2010-12-15 | 天津双街钢管有限公司 | End face seal pressure test head device of hydraulic pressure testing machine |
| CN202066751U (en) * | 2011-01-25 | 2011-12-07 | 中国石油大学(北京) | Pressure testing device for flange weld joints |
| CN202256036U (en) * | 2011-10-21 | 2012-05-30 | 中国十九冶集团有限公司 | Sealing device for pressure test of pipeline |
| CN203324111U (en) * | 2013-06-08 | 2013-12-04 | 黄河养护集团有限公司 | Pressure testing device for steel sleeve pipeline connector |
| CN203628136U (en) * | 2013-12-18 | 2014-06-04 | 天津绿清管道科技股份有限公司 | Pipe fitting pressure testing device |
-
2013
- 2013-12-18 CN CN201310731752.0A patent/CN103697284B/en active IP Right Grant
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2242530A (en) * | 1990-03-27 | 1991-10-02 | Int Pipeline Products Ltd | Pressure testing of pipeline welds |
| US20030029227A1 (en) * | 2000-06-27 | 2003-02-13 | Horst Gotowik | Apparatus for testing or isolating a segment of pipe |
| CN101915647A (en) * | 2010-08-25 | 2010-12-15 | 天津双街钢管有限公司 | End face seal pressure test head device of hydraulic pressure testing machine |
| CN202066751U (en) * | 2011-01-25 | 2011-12-07 | 中国石油大学(北京) | Pressure testing device for flange weld joints |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833460A (en) * | 2015-05-04 | 2015-08-12 | 天津博益气动股份有限公司 | Cylindrical container door air tightness detection tool |
| CN105300805A (en) * | 2015-11-26 | 2016-02-03 | 斯耐特(湖北)工业制造有限公司 | Ultrahigh hydraulic test table for valves |
| CN105334038A (en) * | 2015-11-26 | 2016-02-17 | 斯耐特(湖北)工业制造有限公司 | Valve hydraulic test system |
| CN105300805B (en) * | 2015-11-26 | 2018-05-18 | 斯耐特(湖北)工业制造有限公司 | A kind of Super high pressure valve water pressure testing board |
| CN106525353A (en) * | 2016-11-18 | 2017-03-22 | 贵州望江气体有限公司 | High-pressure gas-filled connection pipe defect detection method |
| CN106525353B (en) * | 2016-11-18 | 2018-10-30 | 贵州望江气体有限公司 | High-pressure aerated connecting tube defect inspection method |
| CN106525352A (en) * | 2016-12-21 | 2017-03-22 | 北京灵铱科技有限公司 | Detection fixture device used for detecting sealing of welding part |
| CN106525352B (en) * | 2016-12-21 | 2020-05-22 | 金华市跨耀工具制造有限公司 | Detection tool device for detecting sealing property of welding parts |
| CN106996901A (en) * | 2017-03-23 | 2017-08-01 | 中国海洋石油总公司 | Girth joint pressure test tool and pressure-measuring method in pipe |
| CN107271262A (en) * | 2017-07-18 | 2017-10-20 | 中国海洋石油总公司 | Single weld seam pressure testing device in one kind pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103697284B (en) | 2015-07-29 |
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