CN106545721B - Oil duct air flue leak stopping pressure oozes equipment, pressure oozes system and pressure infiltration method - Google Patents
Oil duct air flue leak stopping pressure oozes equipment, pressure oozes system and pressure infiltration method Download PDFInfo
- Publication number
- CN106545721B CN106545721B CN201611189558.4A CN201611189558A CN106545721B CN 106545721 B CN106545721 B CN 106545721B CN 201611189558 A CN201611189558 A CN 201611189558A CN 106545721 B CN106545721 B CN 106545721B
- Authority
- CN
- China
- Prior art keywords
- pressure
- leak stopping
- oozes
- equipment
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/18—Appliances for use in repairing pipes
Abstract
The invention discloses a kind of oil duct air flue leak stopping pressures to ooze equipment, pressure oozes system and pressure infiltration method, it includes cylinder body that the pressure, which oozes equipment, percutaneous cystoblast is divided into the first cavity and the second cavity in cylinder body, first cavity is connected to the first interface for importing/exporting leak stopping medium, and the connection of the second cavity is for importing hydraulic oil with the second interface of the leak stopping medium pressure in the first cavity of percutaneous cystoblast pair.The invention avoids traditional leak stopping media directly by the direct pressure supply of manual pump, the present invention passes through the indirect pressure supply of hydraulic oil, both it had avoided leak stopping medium and has cured failure caused by heat transfer, temperature increase during suppressing, also it effectively prevents the direct pressure supply of leak stopping medium and cures failure caused by anoxic, greatly reduce the probability of malfunction for suppressing equipment, it improves pressure and oozes the functional reliability of system, and effectively reduce its maintenance cost.
Description
Technical field
The present invention relates to leak stoppers fields, particularly, are related to a kind of oil duct air flue leak stopping pressure and ooze equipment.
Background technology
The technological procedure of aero-engine casing internal oil channel air flue leak stopping at present is briefly：1. oozing equipment by leak stopping using pressure
Medium is pressed into the oil duct air flue in casing, keeps pressure (highest 18MPa) that medium is made to penetrate into the crack notch in oil duct air flue
It is interior；2. leak stopping medium washes extra in oil duct air flue are clean；3. heating makes the leak stopping media cures in the notch of crack, complete
The leak stopping of casing oil duct air flue.The application research point is the first step, i.e., under the premise of ensureing pressure, leak stopping medium pressure is oozed
Enter in the crack notch in the oil duct air flue of casing.
In the prior art, the leak stopping medium of use, there are two characteristics for solidification tool：1. temperature is more than certain value (for example 21
DEG C) start to cure, and temperature more high curing rate is faster, solution fails after postcritical；2. also can in the environment of anoxic
Generate solidification.
Existing aero-engine casing internal oil channel air flue leak stoppers referring to Fig.1, use one with the manual of fuel tank 1
Pump 2 is used as equipment pressure sources, and subsidiary fuel tank 1 is then directly as leak stopping media storage case, using high-pressure hose 3 by fuel tank 1
Interior leak stopping medium admittance enters in the oil duct air flue of aero-engine casing (i.e. pressure oozes part 4).When operator operates manual pump 2
When, leak stopping medium flows through high-pressure hose 3 by manual pump 2, is pressed directly into aero-engine casing oil duct air flue, then by blocking up
Medium recovery device 5 is leaked to recycle.
Since the technological process first step of aero-engine casing internal oil channel air flue leak stopping needs to keep higher pressure (stifled
Leak pressure), therefore existing pressure oozes equipment and needs continuously to provide pressure.And while pressure is provided, existing pressure is oozed
The manual pump 2 that pressure is provided in equipment will produce a large amount of thermal energy, and then the leak stopping medium temperature for causing pressure to be oozed in equipment constantly rises
It is high.According to the two of leak stopping media cures characteristics it is known that leak stopping medium will rapid curing, will pressure ooze it is manual in equipment
Pump blocks, and then equipment is made to can not work normally.Existing pressure oozes in equipment that manual pump spoilage is higher, needs frequently to replace
On the one hand manual pump brings adverse effect to aero-engine production, existing pressure is on the other hand caused to ooze plant maintenance use
Cost is excessively high.
Invention content
The present invention provides a kind of oil duct air flue leak stopping pressures to ooze equipment, oozes equipment since leak stopping is situated between to solve existing pressure
Matter, which is easy solidification, to be led to high manual pump spoilage, production and safeguards inconvenient technical problem.
The technical solution adopted by the present invention is as follows：
According to an aspect of the present invention, a kind of oil duct air flue leak stopping pressure is provided and oozes equipment, including cylinder body, warp in cylinder body
Leather bag layer is divided into the first cavity and the second cavity, and the first cavity is connected to the first interface for importing/exporting leak stopping medium, the
The connection of two cavitys is for importing hydraulic oil with the second interface of the leak stopping medium pressure in the first cavity of percutaneous cystoblast pair.
Further, cylinder body includes ontology and the cylinder cap on ontology, and leather bag layer is fixed in matching for cylinder cap and ontology
At conjunction.
Further, first interface is located on cylinder cap, and second interface is set to the bottom end of ontology.
According to another aspect of the present invention, a kind of oil duct air flue leak stopping pressure is also provided and oozes system, including above-mentioned pressure is oozed
Equipment, the first interface that pressure oozes equipment are connected to the first pipeline, and the first pipeline is respectively communicated with through branch for storing leak stopping medium
It loads container and pending pressure oozes the oil duct air flue entrance of part, pressure oozes the second interface of equipment through the second pipeline connection hydraulic pressure
Fuel tank, what the second pipeline was equipped with application oil pressure in the second cavity for oozing from equipment to pressure suppresses equipment.
Further, first interface includes leak stopping medium entrance and air pressure relief hole, and leak stopping medium entrance is through first
Branch, the second branch are respectively communicated with and load container, pressure oozes part, and air pressure relief hole is connected to through third branch and loads the upper of container
Portion.
Further, first switch valve is set in the first branch, second switch valve, third branch road are set in the second branch
Third switch valve is set, the 4th switch valve is set on the second pipeline.
Further, the second branch is equipped with based on the first pressure by monitoring manifold pressure value, is set on the second pipeline
Be useful for the second pressure meter of monitoring manifold pressure value, pressure ooze equipment be equipped with for monitoring the first cavity internal pressure value the
Three pressure gauges.
Further, pressure oozes the leak stopping medium recovery device being additionally provided under part for recycling leak stopping medium.
According to another aspect of the present invention, a kind of oil duct air flue leak stopping pressure infiltration method is also provided, using above-mentioned oil duct
Air flue leak stopping pressure oozes system, including：
Step S1, open the first, second and third switch valve, close the 4th switch valve, using gravity to pressure ooze part and
First cavity fills leak stopping medium；
Step S2 opens the second, the 4th switch valve, first, third switch valve is closed, using suppressing equipment by hydraulic oil pressure
Enter in cylinder body in the second cavity, driving leather bag layer oozes part to pressure to be suppressed and pressurize；
Step S3 opens first, third and the 4th switch valve, closes second switch valve, and oozing equipment to pressure carries out pressure release；Make
The leather bag layer that must be deformed restores, and utilizes gravity to supplement leak stopping medium in the first cavity again；
Repeat the above steps S2 to S3, until suppressing completion.
The invention has the advantages that：
Oil duct air flue leak stopping of the present invention pressure oozes equipment, pressure oozes system and pressure infiltration method, by using leather bag layer by cylinder body
It is divided into the first cavity and the second cavity, wherein the first cavity houses leak stopping medium, imports hydraulic oil in the second cavity, and pass through
Leak stopping medium pressure in the first cavity of hydraulic oil and leather bag layer pair oozes part internal oil channel air flue to complete leak stopping medium to pressure
Pressurization lead note, the leather bag layer can play the role of it is effectively heat-insulated and press repeatedly, avoid traditional leak stopping medium directly by
The direct pressure supply of manual pump, the present invention by the indirect pressure supply of hydraulic oil, both avoided leak stopping medium because heat transfer during suppressing,
Solidification failure, also effectively prevents the direct pressure supply of leak stopping medium and cures failure caused by anoxic, significantly caused by temperature increases
The probability of malfunction for suppressing equipment is reduced, pressure is improved and oozes the functional reliability of system, and effectively reduce its maintenance cost.
Other than objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to accompanying drawings, the present invention is described in further detail.
Description of the drawings
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the structural schematic diagram of existing aero-engine casing internal oil channel air flue leak stoppers；
Fig. 2 is the structural schematic diagram that preferred embodiment of the present invention oil duct air flue leak stopping pressure oozes equipment；
Fig. 3 is the structural schematic diagram that preferred embodiment of the present invention oil duct air flue leak stopping pressure oozes system.
Reference sign：
1, fuel tank；
2, manual pump；
3, high-pressure hose；
31, the first branch；
32, the second branch；
33, third branch；
34, the second pipeline；
4, pressure oozes part；
5, leak stopping medium recovery device；
6, pressure oozes equipment；
61, cylinder body；
62, leather bag layer；
63, cylinder cap；
64, the first cavity；
65, the second cavity；
66, first interface；
67, second interface；
7, container is loaded.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Directly leak stopping medium suppress there are the easy solidification of leak stopping medium for existing manual pump, pressure is oozed into equipment
In manual pump block, and then the problem of so that equipment is can not work normally, the preferred embodiment of the present invention provides a kind of oil duct
Air flue leak stopping pressure oozes equipment, with reference to Fig. 2 comprising cylinder body 61, in cylinder body 61 percutaneous cystoblast 62 be divided into the first cavity 64 and
Second cavity 65, the first cavity 64 are connected to the first interface 66 for importing/exporting leak stopping medium, and the connection of the second cavity 65 is used for
Import second interface 67 of the hydraulic oil with percutaneous cystoblast 62 to the leak stopping medium pressure in the first cavity 64.
Cylinder body 61 is divided into the first cavity 64 and the second cavity 65 by the present embodiment by using leather bag layer 62, wherein the
One cavity 64 houses leak stopping medium, imports hydraulic oil in the second cavity 65, and through 62 pair of first cavity 64 of hydraulic oil and leather bag layer
Note is led in interior leak stopping medium pressure, the pressurization that part internal oil channel air flue is oozed to complete leak stopping medium to pressure, 62 energy of leather bag layer
Play the role of effectively heat-insulated and press repeatedly, avoids traditional leak stopping medium directly by the direct pressure supply of manual pump, the present invention
By the indirect pressure supply of hydraulic oil, leak stopping medium was both avoided and has cured mistake caused by heat transfer, temperature increase during suppressing
Effect, also effectively prevents the direct pressure supply of leak stopping medium and cures failure caused by anoxic, greatly reduce the failure for suppressing equipment
Probability improves pressure and oozes the functional reliability of system, and effectively reduces its maintenance cost.
In the present embodiment, leak stopping medium for penetrating into the crack notch in oil duct air flue under pressure, through follow-up
Heat treatment, so that the leak stopping media cures of crack indentation, there, complete the repair to oil duct air flue.The present embodiment is stifled
There are two characteristics for the solidification tool of leakage medium：1, temperature starts to cure more than setting value, and temperature more high curing rate is faster, is more than
Solution fails after critical point；2, it also will produce solidification in the environment of anoxic.The pressure designed by using the present embodiment oozes equipment,
It has abandoned the pressure supply mode of directly each leak stopping medium pressurization of traditional manual pump, avoids the leak stopping that the pressure supply mode is brought and is situated between
The problem of matter solidification failure, further, since the heat-blocking action of leather bag layer 62, also effectively eliminates pressure and ooze in equipment because providing pressure
And heat the phenomenon that leading to leak stopping media cures generated.
With reference to Fig. 2, in the present embodiment, cylinder body 61 includes that ontology and the cylinder cap 63 on ontology, leather bag layer 62 are affixed
At the cooperation of cylinder cap 63 and ontology.In the present embodiment, the upper surface madial wall of ontology is equipped with the stage portion of annular, cylinder cap 63
Lower face be equipped with down it is convex and with the close-fitting protrusion of stage portion, the end of leather bag layer 62 is located at protrusion and the ontology of cylinder cap 63
Between stage portion, and cylinder cap 63 is fastened through lock-screw and ontology are affixed with the leather bag layer 62 being located between cylinder cap and ontology
Position.Preferably, the present embodiment leather bag layer 62 is made of the heat-barrier material of elasticity, as insulating rubber is made.
Optionally, in the present embodiment, first interface 66 is located on cylinder cap 63, and second interface 67 is set to the bottom end of ontology.It is excellent
Selection of land, first interface 66 include leak stopping medium entrance and air pressure relief hole, wherein leak stopping medium entrance is for importing leak stopping
Medium pressurization export leak stopping medium with full first cavity 64 or under the action of leather bag layer 62, air pressure relief hole is for being connected to
To outside air, with the auxiliary air repeatedly in leak stopping medium course of exerting pressure, leak stopping medium is avoided to accelerate to cure because of anoxic.
With reference to Fig. 3, according to another aspect of the present invention, a kind of oil duct air flue leak stopping is also provided and is pressed and oozes system comprising
Pressure above-mentioned oozes equipment 6, and the first interface 66 that pressure oozes equipment 6 is connected to the first pipeline, and the first pipeline is respectively communicated with through branch to be used for
The loading container 7 of storage leak stopping medium and pending pressure ooze the oil duct air flue entrance of part 4, and pressure oozes the second interface 67 of equipment
It is connected to hydraulic oil container 1 through the second pipeline 34, the second pipeline 34, which is equipped in the second cavity 65 for oozing equipment to pressure, applies oil
Pressure suppresses equipment.In the present embodiment, it is manual pump 2 to suppress equipment.
In the present embodiment, first interface 66 includes leak stopping medium entrance and air pressure relief hole, leak stopping medium entrance warp
The first branch 31, the second branch 32 are respectively communicated with and load container 7, pressure oozes part 4, and air pressure relief hole is connected to through third branch 33
Load the top of container 7.
Preferably, for the ease of suppressing the control of process, in the present embodiment, with reference to Fig. 3, it is arranged first in the first branch 31
Second switch valve K2 is arranged in the second branch 32, third switch valve K3, the second pipeline 34 is arranged on third branch 33 by switch valve K1
The 4th switch valve K4 of upper setting.By controlling the action of each switch valve, and then realize the break-make control of each pipeline or branch.It is excellent
Selection of land, each switch valve of the present embodiment use high-pressure ball valve.
Preferably, it in order to realize the monitoring to pipeline or branch operating pressure, in the present embodiment, is set in the second branch 32
It is useful for the first pressure meter of monitoring manifold pressure value, the second pipeline 34 is equipped with second for monitoring manifold pressure value
Pressure gauge, pressure ooze equipment and are equipped with the third pressure gauge for being used for monitoring pressure value in the first cavity 64.
Preferably, pressure oozes the leak stopping medium recovery device 5 being additionally provided under part 4 for recycling leak stopping medium, and bronze drum is stifled
Leakage medium recovery device 5 recycles the leak stopping medium after part is oozed in overvoltage, improves the level of resources utilization.
According to another aspect of the present invention, a kind of oil duct air flue leak stopping pressure infiltration method is also provided, using oil duct above-mentioned
Air flue leak stopping pressure oozes system, and the present embodiment method includes：
Step S1 opens first switch valve K1, second switch valve K2 and third switch valve K3, closes the 4th switch valve K4,
Part 4 is oozed to pressure and the first cavity 64 fills leak stopping medium using gravity；In the present embodiment, loads container 7 and ooze equipment 6 positioned at pressure
And pressure is oozed on the height of part 4, using the potential energy of difference in height that leak stopping medium is interior along first cavity of the injection of the first branch 31 64,
It is injected in the oil duct air flue for extending part 4 along the second branch 32, and the air in the first cavity 64 is exported through third branch 33.
Step S2 opens second switch valve K2, the 4th switch valve K4, closes first switch valve K1, third switch valve K3, profit
Hydraulic oil is pressed into cylinder body 61 in second cavity 65 with equipment is suppressed, driving leather bag layer 62 oozes part 4 to pressure to be suppressed and pressurize；
Step S3 opens first switch valve K1, third switch valve K3 and the 4th switch valve K4, closes second switch valve K2,
Equipment is oozed to pressure and carries out pressure release so that the leather bag layer 62 of deformation restores, and utilizes gravity stifled to supplement in the first cavity 64 again
Leak medium；
Repeat the above steps S2 to S3, until suppressing completion.
The present embodiment is suitable for aero-engine class casing part oil duct air flue leak stopping field, oozes work in the pressure of leak stopping medium
Preferable effect can be played in sequence, can effectively avoid the solidification phenomenon that leak stopping medium occurs by high pressure heat production, ensure that leak stopping is situated between
Matter pressure is oozed process and is scientifically and rationally completed.
It will be understood by those skilled in the art that the present embodiment, which applies also for other, has complicated oil duct air flue parts leak stopping
Field is not limited solely to aero-engine field, the oil duct gas in the parts such as various engine crankcases of automobile, ship etc.
Pipeline leakage stopping can be used or use for reference the present invention.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of oil duct air flue leak stopping pressure oozes equipment, which is characterized in that including cylinder body (61), through leather bag in the cylinder body (61)
Layer (62) is divided into the first cavity (64) and the second cavity (65), and the first cavity (64) connection is stifled for importing or exporting
Leak the first interface (66) of medium, second cavity (65) connection for import hydraulic oil with through the leather bag layer (62) to institute
State the second interface (67) of the leak stopping medium pressure in the first cavity (64).
2. oil duct air flue leak stopping pressure according to claim 1 oozes equipment, which is characterized in that
The cylinder body (61) includes ontology and the cylinder cap (63) on the ontology, and the leather bag layer (62) is fixed in described
At the cooperation of cylinder cap (63) and the ontology.
3. oil duct air flue leak stopping pressure according to claim 2 oozes equipment, which is characterized in that
The first interface (66) is located on the cylinder cap (63), and the second interface (67) is set to the bottom end of the ontology.
Include that pressure as described in claims 1 to 3 is any oozes equipment, the pressure 4. a kind of oil duct air flue leak stopping pressure oozes system
The first interface (66) for oozing equipment is connected to the first pipeline, and first pipeline is respectively communicated with through branch for storing leak stopping medium
It loads container (7) and pending pressure oozes the oil duct air flue entrance of part (4), described press oozes the second interface (67) of equipment through the
Two pipelines (34) are connected to hydraulic oil container (1), and second pipeline (34) is equipped with the second cavity for oozing equipment to the pressure
(65) apply oil pressure in suppresses equipment.
5. oil duct air flue leak stopping pressure according to claim 4 oozes system, which is characterized in that
The first interface (66) includes leak stopping medium entrance and air pressure relief hole, and the leak stopping medium entrance is through first
Road (31), the second branch (32) are respectively communicated with the loading container (7), the pressure oozes part (4), the air pressure relief hole the
Three branches (33) are connected to the top of the loading container (7).
6. oil duct air flue leak stopping pressure according to claim 5 oozes system, which is characterized in that
First switch valve is set on the first branch (31), second switch valve is set on the second branch (32), described the
Third switch valve is set on three branches (33), the 4th switch valve is set on second pipeline (34).
7. oil duct air flue leak stopping pressure according to claim 6 oozes system, which is characterized in that
The second branch (32) is equipped with based on the first pressure by monitoring manifold pressure value, on second pipeline (34)
Based on the second pressure by monitoring manifold pressure value, the pressure is oozed equipment and is equipped with for monitoring first cavity
(64) the third pressure gauge of interior pressure value.
8. oozing system according to any oil duct air flue leak stopping pressure of claim 4 to 7, which is characterized in that
The pressure oozes the leak stopping medium recovery device (5) being additionally provided under part (4) for recycling leak stopping medium.
9. a kind of oil duct air flue leak stopping pressure infiltration method, which is characterized in that oil duct of the application as described in claim 6 to 8 is any
Air flue leak stopping pressure oozes system, including：
Step S1 opens the first, second and third switch valve, closes the 4th switch valve, oozes part (4) and the to pressure using gravity
One cavity (64) fills leak stopping medium；
Step S2 opens the second, the 4th switch valve, closes first, third switch valve, hydraulic oil is pressed into cylinder using equipment is suppressed
In body (61) in the second cavity (65), driving leather bag layer (62) oozes part (4) to pressure to be suppressed and pressurize；
Step S3 opens first, third and the 4th switch valve, closes second switch valve, and oozing equipment to pressure carries out pressure release；So that becoming
The leather bag layer of shape restores, and utilizes gravity to supplement leak stopping medium in the first cavity (64) again；
Repeat the above steps S2 to S3, until suppressing completion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611189558.4A CN106545721B (en) | 2016-12-21 | 2016-12-21 | Oil duct air flue leak stopping pressure oozes equipment, pressure oozes system and pressure infiltration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611189558.4A CN106545721B (en) | 2016-12-21 | 2016-12-21 | Oil duct air flue leak stopping pressure oozes equipment, pressure oozes system and pressure infiltration method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106545721A CN106545721A (en) | 2017-03-29 |
| CN106545721B true CN106545721B (en) | 2018-08-07 |
Family
ID=58397729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611189558.4A Active CN106545721B (en) | 2016-12-21 | 2016-12-21 | Oil duct air flue leak stopping pressure oozes equipment, pressure oozes system and pressure infiltration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106545721B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3844485A1 (en) * | 1988-12-31 | 1990-07-05 | Reinhard Kost | Process for sealing leakages in pipelines, in particular drinking-water lines |
| JP4657031B2 (en) * | 2005-07-01 | 2011-03-23 | 東京瓦斯株式会社 | Gas barrier construction method for pipelines that have been repaired |
| US9869603B2 (en) * | 2012-09-27 | 2018-01-16 | Redline Detection, Llc | Balloon catheter apparatus for internal combustion engine component leak detection and high pressure leak detection |
| CN203081430U (en) * | 2012-12-28 | 2013-07-24 | 中国石油化工股份有限公司 | High-temperature and high-pressure sand bed leaking stoppage simulation device |
| CN203830238U (en) * | 2014-04-10 | 2014-09-17 | 上海威含德石油机械设备有限公司 | Manual hydraulic perfusion device |
| CN205479957U (en) * | 2015-12-31 | 2016-08-17 | 天津安固密封技术有限公司 | Novel root leaking stoppage device |
-
2016
- 2016-12-21 CN CN201611189558.4A patent/CN106545721B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106545721A (en) | 2017-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105004616B (en) | The many performance test apparatus of low-temperature (low temperature) vessel and test method | |
| US2803043A (en) | Method for molding fiber reinforced plastic articles | |
| CN104139502B (en) | A kind of portable injection mold assembling test detection device | |
| CN112414882B (en) | High-temperature crystalline rock cold impact cracking experiment system and method | |
| CN104741864A (en) | Fast repair method for structural damage | |
| CN104007017A (en) | Metal pipe stretching device | |
| CN106545721B (en) | Oil duct air flue leak stopping pressure oozes equipment, pressure oozes system and pressure infiltration method | |
| EP4073416A1 (en) | Filling apparatus for filling storage containers with comrpessed hydrogen, filling station having same and method for filling a storage container | |
| CN106322049B (en) | A kind of fastening type isolation agent injecting type pipeline jig | |
| CN106499662B (en) | A kind of sealing system and operation method of nuclear power station forced circulation pump | |
| CN104552802A (en) | Flexible joint manufacturing mould device | |
| CN102183347A (en) | Sealing member sealing performance detection method and detection device | |
| CN204345265U (en) | Oil well production equipment | |
| CN204284916U (en) | A kind of pressurized container charges uses equipment | |
| CN103743583B (en) | A kind of gas delivering pipe system pressure experimental device | |
| CN203830238U (en) | Manual hydraulic perfusion device | |
| CN104526954A (en) | Resin transfer molding glue-injecting device | |
| CN205824477U (en) | A kind of pedal hydraulic injecting equipment | |
| CN109470584A (en) | A kind of hydraulic circulation loading system | |
| CN108253225B (en) | A kind of welding petroleum pipeline device for plugging | |
| CN207246399U (en) | A kind of clip gripping | |
| CN207406302U (en) | A kind of device of allowing pressurized maintenance christmas tree valve | |
| CN204869396U (en) | Synchronous automatic ftercompction device of curing press hydraulic pressure | |
| CN204300683U (en) | A kind of Novel portable CNG air filling gun device | |
| CN204911975U (en) | Plugging device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |