CN203572721U - Valve detection device - Google Patents
Valve detection device Download PDFInfo
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- CN203572721U CN203572721U CN201320721596.5U CN201320721596U CN203572721U CN 203572721 U CN203572721 U CN 203572721U CN 201320721596 U CN201320721596 U CN 201320721596U CN 203572721 U CN203572721 U CN 203572721U
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Abstract
The utility model discloses a valve detection device, which comprises a frame, a base, an upper top plate, a lower top plate, a jack, a top pipe, an exhaust valve, a water inlet valve and a pressure test pump, wherein the frame comprises a top beam, a middle beam, a bottom beam, a left side column and a right side column, and the top surface of the base is fixed with the bottom ends of the left side column and the right side column respectively in a screwed manner; the upper top plate is fixed on the top beam, and the middle part of the upper top surface is provided with an exhaust hole and a water inlet hole. The lower top plate is fixed on the middle beam; the jack is fixed on the bottom beam; one end of the jacking pipe is in threaded connection and fixed with a piston rod of the jack, and the other end of the jacking pipe is in threaded connection and fixed with the middle beam; the exhaust valve is arranged above the top beam, and the water inlet valve is arranged above the top beam; the water outlet of the pressure test pump is communicated with the water inlet valve through a high-pressure rubber pipe. The utility model has the characteristics of simple structure, convenient operation, the volume is less, and the transport is nimble and can use repeatedly, has wide and the fail safe nature height of application scope.
Description
Technical field
The utility model relates to valve detection equipment technical field, particularly relates to a kind of valve detection device, and the utility model also relates to a kind of detection method of valve detection device in addition.
Background technology
In modern industry and covil construction electromechanical industries, increase along with building body scale, the application of valve is also more and more wider, valve can carry out before dispatching from the factory valve before dispatching from the factory detection, and there is new problem arriving tending to behind construction site by long distance transportation in valve, after valve connection device or pipeline not up to standard, after trial run, valve not up to standard there will be problem to cause damage to equipment, the monomer of equipment is faked higher, therefore, before construction, need to batch valve of on-the-spot arrival, carry out intensity and the property revealed test according to code requirement, good without leakage and inner sealing to guarantee the housing of valve, as find underproof valve, need to expand pressure testing ratio, guarantee pipeline installation quality.Existing valve detection device is generally Horizontal type valve pressure testing table, during use, valve to be measured is horizontally fixed on pressure testing table, by test pump to water filling supercharging in valve, so that valve is carried out to casing rigidity and impermeability test, but because valve is horizontal positioned, air in valve can not be got rid of completely, after air progressively need being compressed during pressure testing, just can reach the pressure test pressure of setting, the air retaining is subject to compression swelling, can cause valve housing because of insufficient strength, to produce explosion, have certain potential safety hazard.
Although also there is now vertical value pressure test platform on market, but such pressure testing table is all to adopt at the lower end of valve access water inlet pipe mostly, test pump need to overcome certain water inlet deadweight just can make the air in valve discharge from the upper end of valve, not only need larger pump pressure but also exhaust velocity slower, also there is System Construction complexity, complex operation, the long and higher problem of cost consuming time in this type of value pressure test platform in addition.
Utility model content
The purpose of this utility model be in order to solve, in prior art, solve that current existing valve detection equipment safety is not high, complex structure, complex operation, consuming time long and cost is higher, be difficult to adapt to the problem of the on-the-spot Quick-action pressure-testing requirement of valve.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of valve detection device is provided, comprise: frame, described frame comprises back timber, central sill, bottom girder, left side post and right side post, described back timber, described central sill and described bottom girder horizontal parallel arrange, and described left side post and described right side post vertically be arranged in parallel; The two ends of described back timber are spirally connected fixing with the top of described left side post and described right side post respectively, the two ends of described bottom girder are spirally connected fixingly with the bottom of described left side post and described right side post respectively, and the two ends of described central sill are slidably connected with described left side post and described right side post respectively; Base, the end face of described base is spirally connected fixing with the bottom of described left side post and described right side post respectively; Upper plate, described upper plate is fixed on described back timber, and vertically down, the middle part of described upper end face is provided with vent port and inlet opening to the workplace of described upper plate; Lower roof plate, described lower roof plate is fixed on described central sill, and the workplace of described lower roof plate is vertically upward, and corresponding with the workplace of described upper plate; Lifting jack, described lifting jack is fixed on described bottom girder; Push pipe, one end of described push pipe and the piston rod of described lifting jack are spirally connected fixing, and the other end and described central sill are spirally connected fixing; Vent valve, described vent valve is located at the top of described back timber and is connected with described vent port by high-pressure rubber pipe; Water intaking valve, described water intaking valve is located at the top of described back timber and is connected with described inlet opening by described high-pressure rubber pipe; Test pump, the water delivering orifice of described test pump is connected with described water intaking valve by described high-pressure rubber pipe; Wherein, described inlet opening is connected with the water inlet of valve to be measured, described test pump by described inlet opening to water filling in described valve to be measured, air in described valve to be measured is upwards discharged by described vent port and described vent valve, described test pump is to described valve persistent pressure to be measured to pressure test pressure value, and then completes the detection to the every pressure testing index of described valve to be measured.
Preferably, described frame further comprises left guide rod and right guide rod, the two ends of described central sill are respectively equipped with left guide hole and the right guide hole running through, described left guide rod wears from described left guide hole and its two ends are welded and fixed with described back timber and described bottom girder respectively, and described right guide rod wears from described right guide hole and its two ends are welded and fixed with described back timber and described bottom girder respectively.
Preferably, described back timber is provided with inlet channel and the exhaust duct running through, and the two ends of described inlet channel are connected with described water intaking valve and described inlet opening respectively, and the two ends of described exhaust duct are connected with described vent valve and described vent port respectively.
Preferably, the rectangle steel body of described base for being welded successively by four channel-section steel head and the tail.
Preferably, the inner side of described left side post and described right side post is respectively equipped with left chute and right rail, and the two ends of described central sill are slidably connected by described left chute and described right rail and described left side post and described right side post respectively.
Preferably, described upper plate and described lower roof plate adopt the circular steel plate that thickness is 8-12mm.
Preferably, described valve detection device further comprises tensimeter, and described tensimeter is connected with described water intaking valve by described high-pressure rubber pipe, for monitoring the pressure in described valve to be measured.
The beneficial effects of the utility model are: the situation that is different from prior art, valve detection device of the present utility model is vertical valve detection device, and water intaking valve and vent valve are located to same one end of valve, pressure testing water enters in valve from the upper end of valve, fast and effeciently get rid of residual air in valve, guaranteed the security of valve in pressure testing process, the utility model adopts lifting jack that valve seal is fixed between upper plate and lower roof plate simultaneously, not only convenient and swift, and greatly alleviated workman's labour intensity.Valve detection apparatus structure of the present utility model is simple, easy to operate, small volume, and carrying flexibly and can Reusability, has applied widely and safe reliability high.
Accompanying drawing explanation
Fig. 1 is the perspective view of the utility model valve detection device.
Fig. 2 is the schematic flow sheet of the detection method of the utility model valve detection device.
Embodiment
Refer to Fig. 1, valve detection device of the present utility model comprises frame 1, base 2, upper plate 3, lower roof plate 4, lifting jack 5, push pipe 6, vent valve 7, water intaking valve 8, test pump (not shown in FIG.) and tensimeter 9, frame 1 comprises back timber 101, central sill 102, bottom girder 103, left side post 104, right side post 105, left guide rod 106 and right guide rod 107, back timber 101, central sill 102 and bottom girder 103 horizontal parallel settings, left side post 104 and right side post 105 vertically be arranged in parallel, wherein, the two ends of back timber 101 are spirally connected fixing with the top of left side post 104 and right side post 105 respectively, the two ends of bottom girder 103 are spirally connected fixing with the bottom of left side post 104 and right side post 105 respectively, the two ends of central sill 102 are slidably connected with left side post 104 and right side post 105 respectively, the two ends of central sill 102 are respectively equipped with left guide hole (not shown in FIG.) and the right guide hole (not shown in FIG.) running through, left guide rod 106 wears from left guide hole and its two ends are welded and fixed with back timber 101 and bottom girder 103 respectively, right guide rod 107 wears from right guide hole and its two ends are welded and fixed with back timber 101 and bottom girder 103 respectively, the rectangle steel body of base 2 for being welded successively by four channel-section steel head and the tail, the side of channel-section steel closely steadily contacts with cement flooring, is difficult for rocking while guaranteeing valve detection to be measured, and the end face of base 2 is spirally connected fixing with the bottom of left side post 104 and right side post 105 respectively, upper plate 3 and lower roof plate 4 adopt the circular steel plate that thickness is 8-12mm to make, and concrete size can be selected according to the size of reality valve to be measured, guarantee that the area of upper plate 3 and lower roof plate 4 is greater than two face areas of valve to be measured.Upper plate 3 is fixed on back timber 101, and vertically down, the middle part of upper end face 101 is provided with vent port (not shown in FIG.) and inlet opening (not shown in FIG.) to the workplace of upper plate 101; Lower roof plate 4 is fixed on central sill 102, and the workplace of lower roof plate 4 vertically upward, and corresponding with the workplace of upper plate 3; Lifting jack 5 is fixed on bottom girder 103, adopts the lifting jack of variety classes and different pressures grade according to the difference of value pressure test pressure, in the present embodiment, is preferably screw jack.The piston rod of one end of push pipe 6 and lifting jack 5 is spirally connected fixing, and the other end and central sill 102 are spirally connected fixing, in actual use, can select according to the size of valve model the push pipe of different model, to meet the vary in size valve detection demand of model of difference.Vent valve 7 is located at the top of back timber 101 and is connected with vent port by high-pressure rubber pipe 10; Water intaking valve 8 is located at the top of back timber 101 and is connected with inlet opening by high-pressure rubber pipe 10; The water delivering orifice of test pump is connected with water intaking valve 8 by high-pressure rubber pipe 10, and the selection of test pump can, according to the pressure testing requirement of valve to be measured, meet its top pressure; Tensimeter 9 is connected with water intaking valve 8 by high-pressure rubber pipe 10, for monitoring the pressure in valve to be measured, according to the demand of different value pressure test pressure, selects suitable tensimeter, guarantee pressure test pressure pressure gage measuring range used 1/3 to 2/3 between; Wherein, inlet opening is connected with the water inlet of valve to be measured, test pump by inlet opening to water filling in valve to be measured, air in valve to be measured is upwards discharged by vent port and vent valve 7, test pump is to valve persistent pressure to be measured to pressure test pressure value, and then completes the detection for the treatment of the every pressure testing index of side valve door.
In the present embodiment, the inner side of left side post 104 and right side post 105 is respectively equipped with left chute (not shown in FIG.) and right rail (not shown in FIG.), the two ends of central sill 102 embed respectively in left chute and right rail, by left chute and right rail and left side post 104 and right side post 105, are slidably connected.
In the present embodiment, back timber 101 is provided with inlet channel (not shown in FIG.) and the exhaust duct (not shown in FIG.) running through, and the two ends of inlet channel are connected with water intaking valve 8 and inlet opening respectively, and the two ends of exhaust duct are connected with vent valve 7 and vent port respectively.
As shown in Figure 1, the below of water intaking valve 8 and tensimeter 9 is also connected with draining valve 11 and main valve 12, one end of draining valve 11 is communicated with water intaking valve 8 by high-pressure rubber pipe 10, and the other end is communicated with main valve 12, draining valve 11 for valve detection to be measured after by the water discharge in valve body.The other end of main valve 12 is connected with test pump, for controlling the break-make of whole pressure testing pipeline.
Please refer to Fig. 1 and Fig. 2, valve should be made intensity and impermeability test before installing at the scene, and gate valve etc. is also needed to carry out Back seal test, for low pressure valve, need to spot-check 20%, as defective, should all detect, and for middle high-pressure valve, should all detect.Pressure testing test(ing) medium is generally selected air, kerosene, clean water etc., due to electromechanical engineering use is mesolow valve mostly, according to design and job specifications, require and consider that stable gas pressure is poor, the utility model adopts clean water as the pressure testing test(ing) medium of valve to be measured.
The detection method of the utility model valve detection device comprises the steps:
S101: one end alignment of valve to be measured is positioned on the workplace of lower roof plate 4, starts very heavy 5 tops and drive lower roof plate 4 to move up, make the other end of valve to be measured and the workplace phase press seal of upper plate 3;
In this step, after all being opened, valve to be measured is vertically placed on the workplace of lower roof plate 4, guarantee that an end face of valve to be measured and the workplace of lower roof plate 4 align and close contact; Restart lifting jack 5, the piston rod of lifting jack 5 upwards ejects, by push pipe 6, promote central sills 102 and the lower roof plate 4 that is fixed on central sill 102 moves up, make the other end and upper plate 3 phase press seals of valve to be measured, guarantee the sealed at both ends tight of valve to be measured, and make the water inlet of valve to be measured corresponding with the inlet opening of upper plate 3.
S102: open water intaking valve 8 and start test pump to valve water filling to be measured, open vent valve 7 simultaneously, until the air in valve to be measured is all discharged from vent valve 7, close vent valve 7;
In this step, first open the main valve 12 being connected with test pump, then open water intaking valve 8 and vent valve 7, and close draining valve 11; Start test pump to water-filling in valve to be measured, water with pressure passes through high-pressure rubber pipe 10, the inlet channel of back timber 101 and the inlet opening of upper plate 3 and then enters in valve to be measured, until be full of clean water in valve to be measured, make air in valve to be measured all through the vent port of upper plate 3, the exhaust duct of back timber 101 is discharged from vent valve 7, finally close vent valve 7.
S103: treat side valve door and continue pressurization, until the pressure in valve to be measured reaches test pressure value, close water intaking valve 8, treat side valve door and carry out every pressure testing test;
In this step, test pump continues to treat the pressurization of side valve door, until the pressure in valve to be measured reaches correlation test force value, closes water intaking valve 8.Pressure testing test comprises Back seal test, Shell test and impermeability test, in the present embodiment, first treats side valve door and carries out Back seal test and topic experiment, then carry out impermeability test.Concrete grammar is as follows:
(1) Back seal test
Seal import and the outlet of valve to be measured, loosen gland (if valve is provided with seal detecting apparatus, and in the situation that not loosening gland, can check reliably the performance of sealing, needn't loosen gland), valve to be measured is in full-gear, make hermetically closing on it, to in the body cavity of valve to be measured, be full of clean water, and be pressurized to gradually 1.1 times of valve nominal pressure to be measured, close test pump, close water intaking valve 8 simultaneously, then in duration of test runs, carry out voltage stabilizing observation, check the upper sealing property of valve to be measured.Wherein, the test pressure value of Back seal test should meet relevant regulations, specifically as shown in table 1:
The duration of test runs of Back seal test should meet relevant regulations, specifically as shown in table 2:
Valve to be measured is as leaked without visible water droplet in duration of test runs, can think on valve to be measured that sealing property meets correlation standard.
(2) Shell test
Seal import and the outlet of valve to be measured, compress gland to keep test pressure, opening and closing element is in part opening.To in the body cavity of valve to be measured, be full of clean water, and be pressurized to gradually 1.5 times (non-return valve should pressurize from entrance point) of valve nominal pressure to be measured, close test pump, close water intaking valve simultaneously, then housing (comprising stuffing-box and valve body and valve gap junction) is carried out to voltage stabilizing observation in duration of test runs, check the strength character of the housing of valve to be measured.Wherein, wherein, the test pressure value of Shell test should meet relevant regulations, specifically as shown in table 3:
Note: maximum allowable working pressure value at 20 ℃, by the regulation of related products standard.
The duration of test runs of Shell test should meet relevant regulations, specifically as shown in table 4:
Valve to be measured, if pressure-bearing wall and valve body in duration of test runs and valve gap junction are without visible seepage, can think that the casing rigidity performance of valve to be measured meets correlation standard.During Shell test, housing (comprising stuffing-box and valve body and valve gap junction) does not have structural damage.If no special requirements, under Seal test pressure, allow filler place to leak, but while dropping to 1.1 times of valve nominal pressure to be measured as test pressure, filler place should be without visible leakage.
(3) impermeability test
The test method of the impermeability test of main valve class is as shown in table 5, for the valve of having stipulated medium circulating direction, and circulating direction pressurization (except non-return valve) that should be in accordance with regulations.During test, should be pressurized to gradually 1.1 times of valve nominal pressure to be measured, then in duration of test runs, carry out voltage stabilizing observation, check the sealing property of valve seal pair to be measured.
Wherein, the test pressure value of impermeability test should meet relevant regulations, and specifically, as shown in table 1 above, the duration of test runs of Shell test should meet relevant regulations, specifically as shown in table 2 above.
The sealing property evaluation criterion of valve to be measured is as shown in table 6, and the maximum that is less than table 6 regulation as valve to be measured maximum leakage amount in duration of test runs allows leakage rate, can think that the sealing property of valve to be measured meets correlation standard.
Note: A level is applicable to nonmetal resilient seal valve, B, C, D level are applicable to metal sealing valve.Wherein: B level is applicable to more crucial valve, D level is applicable to general valve.The maximum permission leakage rate (grade) of all kinds of valves should be by the regulation of related products standard.If related standards is not made concrete regulation, nonmetal resilient seal valve is by the requirement of A level, and metal sealing valve is by the requirement of D level.
S104: open draining valve 11, discharge the water in valve to be measured; Unclamp lifting jack 5, take off valve to be measured;
In this step, first close main valve 12, then open draining valve 11 and water intaking valve 8, water in valve to be measured flows out, and discharges from draining valve 11, then unclamps lifting jack 5, valve to be measured, from taking out between upper plate 3 and lower roof plate 4, is finally dried up and detects complete valve to be measured with pressurized air.
S105: fill in pressure testing record, whether qualifiedly assess valve to be measured, qualified valve is indicated qualified and puts inspection declaration in storage;
In this step, testing staff fills in the test that step S103 does and detects resulting pressure testing data recording, whether and it is qualified according to the deliberated index of GB standard GB/T13937-1992 < < industrial valve pressure test > > defined, to assess valve to be measured, it is qualified as qualified, to indicate, be transported to building-site, and put inspection declaration in storage.
S106: the defective valve of step S105 gained is cleaned, is checked and grinds, after proceed to step S101 and re-start detection.
In this step, use professional cleaning agent in food tray, to clean the sealing surface of defective valve, limit side washing checks the damaged condition of sealing surface, naked eyes are difficult to definite blind crack can carry out with Dye inspectiong.After cleaning, then check the closely sealed situation of flap or gate valve and the sealing surface of seat of defective valve, red with red lead examination, check that sealing surface prints shadow, determines the closely sealed situation of sealing surface; Or with pencil at flap and sealing surface of seat Shang Huaji road concentric circles, then by flap and the closely sealed rotation of valve seat, check that pencil circle wipes situation, determine the closely sealed of sealing surface.If closely sealed bad, available standards flat board is checked respectively flap or flashboard sealing surface and valve body sealing surface, determines grinding part, enters the grinding stage.For the valve head of defective valve or the method for the pit on valve seat or aperture employing grinding, overhaul, be specifically divided into corase grind, middle mill and fine grinding.Hand lapping, no matter slightly grind or carefully grind, is all to run through all the time to mention, put down; Rotation, reciprocal; The process of lapping rap, the operation such as commutation combining, its objective is for fear of abrasive particle track and repeats, and makes lap tool and sealing surface obtain uniform grinding, improves flatness and the smooth finish of sealing surface.The valve grinding after repairing is positioned on the workplace of lower roof plate, enters step S101 and re-starts detection.
Above method has only provided and has adopted clean water as the detection method of the valve detection device of pressure testing test(ing) medium, adopt the detection method of other media such as air and kerosene, concrete steps refer to the description of above steps, because it is within the scope of the art personnel's understanding, so locate not do to repeat.
Valve detection device of the present utility model is vertical valve detection device, and water intaking valve and vent valve are located to same one end of valve, pressure testing water enters in valve from the upper end of valve, fast and effeciently get rid of residual air in valve, guaranteed the security of valve in pressure testing process, the utility model adopts lifting jack that valve seal is fixed between upper plate and lower roof plate simultaneously, not only convenient and swift, and has greatly alleviated workman's labour intensity.Valve detection apparatus structure of the present utility model is simple, easy to operate, small volume, and carrying flexibly and can Reusability, has applied widely and safe reliability high.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model instructions and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (7)
1. a valve detection device, is characterized in that, comprising:
Frame, described frame comprises back timber, central sill, bottom girder, left side post and right side post, and described back timber, described central sill and described bottom girder horizontal parallel arrange, and described left side post and described right side post vertically be arranged in parallel; The two ends of described back timber are spirally connected fixing with the top of described left side post and described right side post respectively, the two ends of described bottom girder are spirally connected fixingly with the bottom of described left side post and described right side post respectively, and the two ends of described central sill are slidably connected with described left side post and described right side post respectively;
Base, the end face of described base is spirally connected fixing with the bottom of described left side post and described right side post respectively;
Upper plate, described upper plate is fixed on described back timber, and vertically down, the middle part of described upper end face is provided with vent port and inlet opening to the workplace of described upper plate;
Lower roof plate, described lower roof plate is fixed on described central sill, and the workplace of described lower roof plate is vertically upward, and corresponding with the workplace of described upper plate;
Lifting jack, described lifting jack is fixed on described bottom girder;
Push pipe, one end of described push pipe and the piston rod of described lifting jack are spirally connected fixing, and the other end and described central sill are spirally connected fixing;
Vent valve, described vent valve is located at the top of described back timber and is connected with described vent port by high-pressure rubber pipe;
Water intaking valve, described water intaking valve is located at the top of described back timber and is connected with described inlet opening by described high-pressure rubber pipe;
Test pump, the water delivering orifice of described test pump is connected with described water intaking valve by described high-pressure rubber pipe;
Wherein, described inlet opening is connected with the water inlet of valve to be measured, described test pump by described inlet opening to water filling in described valve to be measured, air in described valve to be measured is upwards discharged by described vent port and described vent valve, described test pump is to described valve persistent pressure to be measured to pressure test pressure value, and then completes the detection to the every pressure testing index of described valve to be measured.
2. valve detection device according to claim 1, it is characterized in that, described frame further comprises left guide rod and right guide rod, the two ends of described central sill are respectively equipped with left guide hole and the right guide hole running through, described left guide rod wears from described left guide hole and its two ends are welded and fixed with described back timber and described bottom girder respectively, and described right guide rod wears from described right guide hole and its two ends are welded and fixed with described back timber and described bottom girder respectively.
3. valve detection device according to claim 1, it is characterized in that, described back timber is provided with inlet channel and the exhaust duct running through, the two ends of described inlet channel are connected with described water intaking valve and described inlet opening respectively, and the two ends of described exhaust duct are connected with described vent valve and described vent port respectively.
4. valve detection device according to claim 1, is characterized in that, the rectangle steel body of described base for being welded successively by four channel-section steel head and the tail.
5. valve detection device according to claim 1, it is characterized in that, the inner side of described left side post and described right side post is respectively equipped with left chute and right rail, and the two ends of described central sill are slidably connected by described left chute and described right rail and described left side post and described right side post respectively.
6. valve detection device according to claim 1, is characterized in that, described upper plate and described lower roof plate adopt the circular steel plate that thickness is 8-12mm.
7. valve detection device according to claim 1, is characterized in that, described valve detection device further comprises tensimeter, and described tensimeter is connected with described water intaking valve by described high-pressure rubber pipe, for monitoring the pressure in described valve to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320721596.5U CN203572721U (en) | 2013-11-13 | 2013-11-13 | Valve detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320721596.5U CN203572721U (en) | 2013-11-13 | 2013-11-13 | Valve detection device |
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| CN203572721U true CN203572721U (en) | 2014-04-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575598A (en) * | 2013-11-13 | 2014-02-12 | 中建一局集团安装工程有限公司 | Valve detection device and detection method thereof |
| CN106226163A (en) * | 2016-08-26 | 2016-12-14 | 江苏伟屹电子有限公司 | A kind of vertical kerosene pressure testing platform |
| CN109186871A (en) * | 2018-07-05 | 2019-01-11 | 柳州酸王泵制造股份有限公司 | Flow passage part pressure testing device |
-
2013
- 2013-11-13 CN CN201320721596.5U patent/CN203572721U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575598A (en) * | 2013-11-13 | 2014-02-12 | 中建一局集团安装工程有限公司 | Valve detection device and detection method thereof |
| CN106226163A (en) * | 2016-08-26 | 2016-12-14 | 江苏伟屹电子有限公司 | A kind of vertical kerosene pressure testing platform |
| CN109186871A (en) * | 2018-07-05 | 2019-01-11 | 柳州酸王泵制造股份有限公司 | Flow passage part pressure testing device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20141113 |
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| EXPY | Termination of patent right or utility model |