CN207585860U - A kind of leakproofness Quick pressing test device - Google Patents
A kind of leakproofness Quick pressing test device Download PDFInfo
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- CN207585860U CN207585860U CN201721642780.5U CN201721642780U CN207585860U CN 207585860 U CN207585860 U CN 207585860U CN 201721642780 U CN201721642780 U CN 201721642780U CN 207585860 U CN207585860 U CN 207585860U
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- pressure
- seal nipple
- sleeve
- openend
- leakproofness
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Abstract
The utility model discloses a kind of leakproofness Quick pressing test devices, including sleeve, first seal nipple, second seal nipple, first quick coupling, second quick coupling, first pressure device and the second pressure device, the sleeve has the first openend and the second openend, sleeve is connect respectively by the first openend and the second openend with the first seal nipple and the second seal nipple, first pressure device and the second pressure device are connect respectively by the first quick coupling and the second quick coupling with the first seal nipple and the second seal nipple, first pressure valve and second pressure valve are respectively equipped on first pressure device and the second pressure device, first quick coupling is equipped with pressure gauge.The utility model carries out the performing leak test of sleeve by the pressure fetched water or bought oil into sleeve in increase sleeve, the condition of LWD instruments underground actual working environment can be simulated, compared with compressed air, pressure rise in sleeve is faster, it is time saving and energy saving, it is suppressed using two pressure devices, suppressed time can be saved, testing efficiency is high.
Description
Technical field
The utility model is related to construction material detection technology fields, and in particular to a kind of leakproofness Quick pressing test dress
It puts.
Background technology
Well logging (LWD) be grow up on the basis of measurement while drilling (MWD), for solving horizontal well and multi-branched
Well formation evaluation and geosteering while drilling and the emerging well logging comprehensive application technology to grow up.LWD technologies mainly should
Used in differentiating stratum, resolution aqueous vapor water, judging the occasions such as formation variation, prediction high pressure formation, drilling period can be greatly shortened,
The soaking time of aqueous vapor is reduced, aquifer pollution is gathered around in reduction.Since the application scenario of LWD instruments is mostly underground high-voltage test environment,
Therefore, it is very high to sealing requirements.If the leakproofness of LWD instruments does not reach requirement, then liquid filling easily occurs in underground
Phenomenon can not only cause measurement result significant impact, but also irreversible pollution damage can be caused to LWD instruments.
In order to ensure LWD instruments in underground acceptable safety operation, LWD instruments are required for being sealed property to examine before going into the well
It surveys.Existing LWD instruments device for detecting sealability is that LWD instruments and mechanical pump airtight connection are utilized machinery by seal pipe
Air in pumped access, by pressure vacuum gauge measure pressure in sealing propertytest access be close to vacuum pressure,
The switch valve closed outside mechanical pump steam inlet stops pumping, and whether the negative pressure then observed in sealing propertytest access keeps not
Become, since this device for detecting sealability can only be tested under subnormal ambient, the underground that can not simulate LWD instrument applications is practical high
Pressure ring border therefore, it is necessary to be improved to existing LWD instruments device for detecting sealability, can meet LWD instruments reality
The needs of application environment.
Utility model content
In order to overcome deficiency of the prior art, the purpose of this utility model is to provide a kind of surveys of leakproofness Quick pressing
Trial assembly is put, which has the condition of simulation LWD instruments underground actual working environment, disclosure satisfy that its actual working pressure
Needs.
In order to achieve the above objectives, the utility model uses following technical scheme：
A kind of leakproofness Quick pressing test device, including sleeve, the first seal nipple, the second seal nipple, first soon
Quick coupling, the second quick coupling, the first pressure device and the second pressure device,
The sleeve has the first openend and the second openend, and the sleeve passes through first openend and institute respectively
The second openend is stated to connect with first seal nipple and second seal nipple,
First pressure device and second pressure device pass through first quick coupling and described second respectively
Quick coupling is connect with first seal nipple and second seal nipple,
First pressure valve and second pressure valve, institute are respectively equipped on first pressure device and second pressure device
The first quick coupling is stated equipped with pressure gauge.
Preferably, the leakproofness Quick pressing test device further includes the first high pressure line and the second high pressure line, institute
State the first pressure device and second pressure device respectively by first high pressure line and second high pressure line with
First quick coupling is connected with second quick coupling.
Preferably, the first external screw thread is provided on first openend, is provided on first seal nipple and institute
State matched first internal thread of the first external screw thread.
Preferably, the second external screw thread is provided on second openend, is provided on second seal nipple and institute
State matched second internal thread of the second external screw thread.
Preferably, the first relief hole is provided on first seal nipple, first is equipped on first relief hole
Pressure release plug.
Preferably, the second relief hole is provided on second seal nipple, second is equipped on second relief hole
Pressure release plug.
Preferably, between the first pressure release plug and first relief hole and the second pressure release plug with it is described
It is to be threadedly coupled between second relief hole.
Preferably, it is provided with the first sealing ring between first seal nipple and first openend.
Preferably, it is provided with the second sealing ring between second seal nipple and second openend.
Preferably, the compressive region of the sleeve is 50-120MPa.
The utility model has the advantages that：
1st, the utility model is simple in construction, easy to disassemble and assemble；
2nd, the utility model has the condition of simulation LWD instruments underground actual working environment, disclosure satisfy that its real work
The needs of pressure.
3rd, the utility model increases the pressure in sleeve by fetching water or buying oil into sleeve, compared with compressed air,
Pressure rise in sleeve is faster；
4th, it is suppressed using two pressure devices, suppressed time can be saved, the pressure in the sleeve is made quickly to rise
Height arrives required test pressure value, and testing efficiency is high；
5th, the test pressure higher of the utility model, reaches as high as 120MPa.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description
In become apparent or recognized by the practice of the utility model.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure diagram of leakproofness Quick pressing test device provided by the utility model；
Fig. 2 is the explosive view of Fig. 1 provided by the utility model；
In figure：1- sleeves, the first openends of 11-, the first external screw threads of 111-, the second openends of 12-, the second outer spiral shells of 121-
Line, the first seal nipples of 2-, 21- the first pressure release plugs, the second seal nipples of 3-, 31- the second pressure release plugs, the first fast quick access of 4-
Head, 41- pressure gauges, the second quick couplings of 5-, the first pressure devices of 6-, 61- first pressure valves, the second pressure devices of 7-, 71-
Two pressure valve, the first high pressure lines of 8-, the second high pressure lines of 9-.
Specific embodiment
To make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment
And with reference to attached drawing, the utility model is further described.It should be understood that these descriptions are merely illustrative, and do not really want
Limit the scope of the utility model.
In the description of the present invention, it is to be appreciated that term the instructions such as " on ", " under ", " interior ", " outer " orientation
Or position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of description the utility model and simplification is retouched
State rather than indicate or imply that the device of meaning or element there must be specific orientation, with specific azimuth configuration and behaviour
Make, therefore it is not intended that limitation to the utility model.
It should be noted that term " first " in the specification and claims of the utility model and above-mentioned attached drawing,
" second " etc. is the object for distinguishing similar, and specific sequence or precedence are described without being used for.It should be appreciated that in this way
The data used can be interchanged in the appropriate case, can be in addition at this so as to the embodiment of the utility model described herein
In diagram or description those other than sequence implement.In addition, term " comprising " and " having " and their any deformation, meaning
Figure be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, apparatus, product or equipment
Be not necessarily limited to those steps clearly listed or unit, but may include not listing clearly or for these processes,
The intrinsic other steps of method, product or equipment or unit.
Embodiment 1
LWD instruments are typically mounted on the underground of below ground about rice, under such operating condition, the sealing of LWD instruments
Property have harsh requirement, this just needs a kind of test device to detect the sealing performance of LWD instruments.Sealing of the prior art
Property detection device can only test under subnormal ambient, can not simulate the underground actual high-voltage environment of LWD instrument applications.
To solve the above-mentioned problems, the present embodiment provides a kind of leakproofness Quick pressing test device, such as Fig. 1 and Fig. 2 institutes
Show, leakproofness Quick pressing test device provided in this embodiment, including sleeve 1, the first seal nipple 2, the second seal nipple
3rd, the first quick coupling 4, the second quick coupling 5, the first pressure device 6 and the second pressure device 7.
The sleeve 1 has the first openend 11 and the second openend 12, and the sleeve 1 is open respectively by described first
End 11 and second openend 12 are connect with first seal nipple 2 and second seal nipple 3.Preferably, it is described
The first external screw thread 111 is provided on first openend 11, is provided on first seal nipple 2 and first external screw thread
111 matched first internal threads.First openend 11 and first seal nipple 2 pass through 111 He of the first external screw thread
First internal thread, which screws, to be sealed.The second external screw thread 121, second sealing are provided on second openend 12
It is provided on connector 3 and 121 matched second internal thread of the second external screw thread.Second openend 12 and described second
Seal nipple 3 is screwed and is sealed by the second external screw thread 121 and the second internal thread.First seal nipple 2 and institute
State the second seal nipple 3 can be by screwing by hand, also can be urgent by assembling and disassembling stand.
Preferably, the first sealing ring, second external screw thread 121 are arranged on the excircle of first external screw thread 111
Excircle on be arranged with the second sealing ring, first sealing ring and second sealing ring can improve first sealing
Sealing between connector 2 and first openend 11 and between second seal nipple 3 and second openend 12
Property.It is both provided on first seal nipple 2 and second seal nipple 3 and carries silk, convenient for being hung to the LWD instruments
Dress, it is easy to use, it is easy to operate.
Preferably, first quick coupling 4 and second quick coupling 5 use grafting connector, convenient for the sleeve
1st, first pressure device 6 and second pressure device 7 are mounted and dismounted.It is set in first quick coupling 4
There is pressure gauge 41, in the present embodiment, the pressure measurement ranging from 0-150Mpa of the pressure gauge 41, when suppressing dress by described first
6 and second pressure device 7 when being suppressed into the sleeve 1 are put, the pressure gauge 41 can be shown in presently described sleeve 1
Pressure value.Needed for being pressurized to when the sleeve 1 after test pressure value, turn off the first pressure valve 61 and the second pressure
Valve 71, you being sealed property is tested.
Further, the leakproofness Quick pressing test device further includes the first high pressure line 8 and the second high pressure line
9, first pressure device 6 and second pressure device 7 pass through first high pressure line 8 and second high pressure respectively
Pipeline 9 is connect with first quick coupling 4 and second quick coupling 5.When passing through first pressure device 6 and described
When second pressure device 7 is suppressed respectively into the sleeve 1, first high pressure line 8 and second high pressure line 9 can be with
Certain cushioning effect is played, will not make the pressure in the sleeve 1 that change dramatically occur.Preferably, described first dress is suppressed
It puts between 6, first quick coupling 4 and first high pressure line 8 and second pressure device 7, described second fast
Be conducive to improve the leakproofness of each junction using being threadedly coupled between quick coupling 5 and second high pressure line 9.
Preferably, the first relief hole is provided on first seal nipple 2, first is equipped on first relief hole
Pressure release plug 21 is connected through a screw thread between the first pressure release plug 21 and first relief hole.Second sealing connects
The second relief hole is provided on first 3, the second pressure release plug 31, the second pressure release plug 31 are installed on second relief hole
It is connected through a screw thread between second relief hole.
After the test device assembling, can be placed on progress fluid tightness on workbench can test.During experiment,
First by the 1 built-in full water of sleeve, then by first pressure device 6 and second pressure device 7 to the sleeve 1
Inside buy oil, since the compressibility of oil is smaller, compared with compressed air, apply same power and suppressed, the sleeve
Pressure in 1 can increase faster, and be suppressed using two pressure devices, can save suppressed time, make in the sleeve 1
Pressure rise rapidly to needed for test pressure value, testing efficiency is high, and in the present embodiment, the pressure in the sleeve 1 is reachable
120Mpa can simulate the condition of LWD instruments underground actual working environment, to meet the needs of its actual working pressure.Work as institute
When stating the registration of pressure gauge 41 close to 120Mpa, the first pressure valve 61 and the second pressure valve 71 are closed, described in observation
The outer surface of the registration of pressure gauge 41 and the sleeve 1, if the registration of the pressure gauge 41 remains unchanged, and described for a long time
There is no water or oil leakage on the outer surface of sleeve 1, then sealing propertytest result has leakproofness for the sleeve 1, if by one
The registration of pressure gauge 41 becomes smaller described in the section time, and has water or oil leakage on the outer surface of the sleeve 1, then sealing propertytest knot
Fruit does not have leakproofness for the sleeve 1.
During above-mentioned experiment, in order to exclude between first seal nipple 2 and first openend 11 and
Influence of the leakproofness to performing leak test result between second seal nipple 3 and second openend 12 can incite somebody to action
First seal nipple 2, second seal nipple 3 connect with sleeve 1 after into the water, observe first seal nipple
Connection between 2 and the junction of first openend 11 and second seal nipple 3 and second openend 12
Whether place has continuous air bubbles to emerge, if there is continuous air bubbles to emerge, illustrates first seal nipple 2 and first openend
Connect not close between 11 and between second seal nipple 3 and second openend 12, leakproofness is poor, if not having
Continuous air bubbles are emerged, then illustrate between first seal nipple 2 and first openend 11 and second sealing connects
It is completely embedded between first 3 and second openend 12, leakproofness is preferable.
After the completion of performing leak test, can by the first pressure release plug 21 and the second pressure release plug 31 respectively from
It is removed on first relief hole and second relief hole, so as to fulfill the slow pressure release of the sleeve 1, avoids working as and dismantle
When first seal nipple 2 and second seal nipple 3, the high pressure in the sleeve 1 generates larger impact force, so as to
Operating personnel are damaged, ensure the security reliability of experimentation.
The present embodiment detects the sealing performance of the test device, in practical operation, behaviour by the use of water and oil as medium
Making personnel can suppress into the sleeve 1 as needed to required pressure, and more accurate leakproofness, operates in order to obtain
Personnel can suitably increase the dwell time as needed.
Embodiment 2
It is as depicted in figs. 1 and 2, provided in this embodiment the present embodiment provides a kind of leakproofness Quick pressing test device
Leakproofness Quick pressing test device, including sleeve 1, the first seal nipple 2, the second seal nipple 3, the first quick coupling 4,
Two quick couplings 5, the first pressure device 6 and the second pressure device 7.
The sleeve 1 has the first openend 11 and the second openend 12, and the sleeve 1 is open respectively by described first
End 11 and second openend 12 are connect with first seal nipple 2 and second seal nipple 3.Preferably, it is described
The first external screw thread 111 is provided on first openend 11, is provided on first seal nipple 2 and first external screw thread
111 matched first internal threads.First openend 11 and first seal nipple 2 pass through 111 He of the first external screw thread
First internal thread, which screws, to be sealed.The second external screw thread 121, second sealing are provided on second openend 12
It is provided on connector 3 and 121 matched second internal thread of the second external screw thread.Second openend 12 and described second
Seal nipple 3 is screwed and is sealed by the second external screw thread 121 and the second internal thread.First seal nipple 2 and institute
State the second seal nipple 3 can be by screwing by hand, also can be urgent by assembling and disassembling stand.
Preferably, the first sealing ring, second external screw thread 121 are arranged on the excircle of first external screw thread 111
Excircle on be arranged with the second sealing ring, first sealing ring and second sealing ring can improve first sealing
Sealing between connector 2 and first openend 11 and between second seal nipple 3 and second openend 12
Property.It is both provided on first seal nipple 2 and second seal nipple 3 and carries silk, convenient for being hung to the LWD instruments
Dress, it is easy to use, it is easy to operate.
Preferably, first quick coupling 4 and second quick coupling 5 use grafting connector, convenient for the sleeve
1st, first pressure device 6 and second pressure device 7 are mounted and dismounted.It is set in first quick coupling 4
There is pressure gauge 41, in the present embodiment, the pressure measurement ranging from 0-100Mpa of the pressure gauge 41, when suppressing dress by described first
6 and second pressure device 7 when being suppressed into the sleeve 1 are put, the pressure gauge 41 can be shown in presently described sleeve 1
Pressure value.Needed for being pressurized to when the sleeve 1 after test pressure value, turn off the first pressure valve 61 and the second pressure
Valve 71, you being sealed property is tested.
Further, the leakproofness Quick pressing test device further includes the first high pressure line 8 and the second high pressure line
9, first pressure device 6 and second pressure device 7 pass through first high pressure line 8 and second high pressure respectively
Pipeline 9 is connect with first quick coupling 4 and second quick coupling 5.When passing through first pressure device 6 and described
When second pressure device 7 is suppressed respectively into the sleeve 1, first high pressure line 8 and second high pressure line 9 can be with
Certain cushioning effect is played, will not make the pressure in the sleeve 1 that change dramatically occur.Preferably, described first dress is suppressed
It puts between 6, first quick coupling 4 and first high pressure line 8 and second pressure device 7, described second fast
Be conducive to improve the leakproofness of each junction using being threadedly coupled between quick coupling 5 and second high pressure line 9.
Preferably, the first relief hole is provided on first seal nipple 2, first is equipped on first relief hole
Pressure release plug 21 is connected through a screw thread between the first pressure release plug 21 and first relief hole.Second sealing connects
The second relief hole is provided on first 3, the second pressure release plug 31, the second pressure release plug 31 are installed on second relief hole
It is connected through a screw thread between second relief hole.
After the test device assembling, can be placed on progress fluid tightness on workbench can test.During experiment,
First by the 1 built-in full water of sleeve, then by first pressure device 6 and second pressure device 7 to the sleeve 1
Inside fetch water, since the compressibility of water is smaller, compared with compressed air, apply same power and suppressed, the sleeve
Pressure in 1 can increase faster, and be suppressed using two pressure devices, can save suppressed time, make in the sleeve 1
Pressure rise rapidly to needed for test pressure value, testing efficiency is high, and in the present embodiment, the pressure in the sleeve 1 is reachable
50Mpa can simulate the condition of LWD instruments underground actual working environment, to meet the needs of its actual working pressure.When described
When the registration of pressure gauge 41 is close to 50Mpa, the first pressure valve 61 and the second pressure valve 71 are closed, observes the pressure
The outer surface of the registration of table 41 and the sleeve 1, if the registration of the pressure gauge 41 remains unchanged, and the sleeve for a long time
There is no water leakage on 1 outer surface, then sealing propertytest result has leakproofness for the sleeve 1, if through institute after a period of time
The registration for stating pressure gauge 41 becomes smaller, and has water leakage on the outer surface of the sleeve 1, then sealing propertytest result is the sleeve
1 does not have leakproofness.
During above-mentioned experiment, in order to exclude between first seal nipple 2 and first openend 11 and
Influence of the leakproofness to performing leak test result between second seal nipple 3 and second openend 12 can incite somebody to action
First seal nipple 2, second seal nipple 3 connect with sleeve 1 after into the water, observe first seal nipple
Connection between 2 and the junction of first openend 11 and second seal nipple 3 and second openend 12
Whether place has continuous air bubbles to emerge, if there is continuous air bubbles to emerge, illustrates first seal nipple 2 and first openend
Connect not close between 11 and between second seal nipple 3 and second openend 12, leakproofness is poor, if not having
Continuous air bubbles are emerged, then illustrate between first seal nipple 2 and first openend 11 and second sealing connects
It is completely embedded between first 3 and second openend 12, leakproofness is preferable.
After the completion of performing leak test, can by the first pressure release plug 21 and the second pressure release plug 31 respectively from
It is removed on first relief hole and second relief hole, so as to fulfill the slow pressure release of the sleeve 1, avoids working as and dismantle
When first seal nipple 2 and second seal nipple 3, the high pressure in the sleeve 1 generates larger impact force, so as to
Operating personnel are damaged, ensure the security reliability of experimentation.
The present embodiment uses water as the sealing performance that medium detects the test device, in practical operation, operator
Member can suppress into the sleeve 1 as needed to required pressure, in order to obtain more accurate leakproofness, operating personnel
The dwell time can suitably be increased as needed.
It should be understood that the above-mentioned specific embodiment of the utility model is used only for exemplary illustration or explains this reality
With novel principle, without forming the limitation to the utility model.Therefore, in the spirit and scope without departing from the utility model
In the case of any modification, equivalent substitution, improvement and etc. done, should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of leakproofness Quick pressing test device, which is characterized in that including sleeve (1), the first seal nipple (2), second
Seal nipple (3), the first quick coupling (4), the second quick coupling (5), the first pressure device (6) and the second pressure device (7),
The sleeve (1) has the first openend (11) and the second openend (12), and the sleeve (1) passes through described first respectively
Openend (11) and second openend (12) are connect with first seal nipple (2) and second seal nipple (3),
First pressure device (6) and second pressure device (7) are respectively by first quick coupling (4) and described
Second quick coupling (5) is connect with first seal nipple (2) and second seal nipple (3),
First pressure valve (61) and the second pressure are respectively equipped on first pressure device (6) and second pressure device (7)
Power valve (71), first quick coupling (4) are equipped with pressure gauge (41).
2. leakproofness Quick pressing test device according to claim 1, which is characterized in that the leakproofness Quick pressing
Test device further includes the first high pressure line (8) and the second high pressure line (9), first pressure device (6) and described second
Pressure device (7) passes through first high pressure line (8) and second high pressure line (9) and first quick coupling respectively
(4) it is connected with second quick coupling (5).
3. leakproofness Quick pressing test device according to claim 1 or 2, which is characterized in that first openend
(11) the first external screw thread (111) is provided on, is provided on first seal nipple (2) and first external screw thread (111)
Matched first internal thread.
4. leakproofness Quick pressing test device according to claim 3, which is characterized in that second openend (12)
On be provided with the second external screw thread (121), be provided on second seal nipple (3) and second external screw thread (121) match
The second internal thread closed.
5. leakproofness Quick pressing test device according to claim 1 or 2, which is characterized in that first sealing connects
The first relief hole is provided on head (2), the first pressure release plug (21) is installed on first relief hole.
6. leakproofness Quick pressing test device according to claim 5, which is characterized in that second seal nipple
(3) the second relief hole is provided on, the second pressure release plug (31) is installed on second relief hole.
7. leakproofness Quick pressing test device according to claim 6, which is characterized in that the first pressure release plug
(21) it is screw thread between first relief hole and between the second pressure release plug (31) and second relief hole
Connection.
8. leakproofness Quick pressing test device according to claim 1, which is characterized in that first seal nipple
(2) it is provided with the first sealing ring between first openend (11).
9. leakproofness Quick pressing test device according to claim 1, which is characterized in that second seal nipple
(3) it is provided with the second sealing ring between second openend (12).
10. leakproofness Quick pressing test device according to claim 1, which is characterized in that the compression of the sleeve (1)
Ranging from 50-120MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721642780.5U CN207585860U (en) | 2017-11-30 | 2017-11-30 | A kind of leakproofness Quick pressing test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721642780.5U CN207585860U (en) | 2017-11-30 | 2017-11-30 | A kind of leakproofness Quick pressing test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207585860U true CN207585860U (en) | 2018-07-06 |
Family
ID=62734570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721642780.5U Expired - Fee Related CN207585860U (en) | 2017-11-30 | 2017-11-30 | A kind of leakproofness Quick pressing test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207585860U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741308A (en) * | 2017-11-30 | 2018-02-27 | 贝兹维仪器(苏州)有限公司 | A kind of sealing Quick pressing test device |
| CN114544375A (en) * | 2022-03-07 | 2022-05-27 | 美思流体动力科技(哈尔滨)有限公司 | O-shaped ring hydrostatic test device for nuclear main pump |
-
2017
- 2017-11-30 CN CN201721642780.5U patent/CN207585860U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741308A (en) * | 2017-11-30 | 2018-02-27 | 贝兹维仪器(苏州)有限公司 | A kind of sealing Quick pressing test device |
| CN114544375A (en) * | 2022-03-07 | 2022-05-27 | 美思流体动力科技(哈尔滨)有限公司 | O-shaped ring hydrostatic test device for nuclear main pump |
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| GR01 | Patent grant | ||
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Granted publication date: 20180706 Termination date: 20201130 |