CN208254736U - Micro-leakage test paper and sealing device with micro-leakage test function - Google Patents
Micro-leakage test paper and sealing device with micro-leakage test function Download PDFInfo
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- CN208254736U CN208254736U CN201721384532.5U CN201721384532U CN208254736U CN 208254736 U CN208254736 U CN 208254736U CN 201721384532 U CN201721384532 U CN 201721384532U CN 208254736 U CN208254736 U CN 208254736U
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Abstract
The utility model discloses a kind of micro-leakage test paper and the sealing device with micro-leakage test function, micro-leakage test paper includes the film paper of oleophylic material, there is a plurality of vertical chromogenic line drawn by color developing agent in film paper, the spacing between adjacent chromogenic line is equal.The utility model relates to micro-leakage test paper be oleophylic material, oily sensitive color developing agent in form of a coil, is equally spaced fixed in film paper, then film paper is fixed on the axis outside sealing ring, if there is oil leakage occurs, color developing agent color changes, the change speed of the quantity and photochromic amount that are changed colour by coil, can calculate time, leakage total amount and the rate of leakage, test method is simple, quick, and testing tool is easy to make, is low in cost.
Description
Technical field
It a kind of lets out the utility model relates to down hole drill sealing test field more particularly to for the micro of sealing experiment platform
The sealing device with micro-leakage test function for leaking test paper and being formed using the micro-leakage test paper.
Background technique
Sealing device is basic components more easy to damage and the most key in drilling-production equipment, the work of downhole tool
Environment is exceedingly odious, and operating temperature, operating pressure and the working speed of down-hole equipment are continuously improved, while wanting during the work time
It is directly in contact with containing various solid impurities and drilling fluid, the oil liquid of chemicals etc., directly receiving high temperature, high pressure and may be with
The medium (underground ring includes mud, water, oil etc.) of tempering property of height is in contact, and may also be subjected to during the work time strong
The unconventional interference such as vibration, the variation of axial load and rotation speed.These all produce pole to its service life and normal work
Big influence.
The sealing life of downhole tool is generally at 200 hours or so at present, greatly affected working efficiency and work at
This, is badly in need of the research and development to sealing element and carries out life experiment research, carry out under the common conditions such as high temperature, vibration, rotation, multimedium
Leakage experiment research.
High in requirement of the downhole tools such as intelligent, automation to sealing reliability, leakage rate allowable is extremely micro
, currently used sealing detection mode cannot fully meet requirement.Liquid leakage amount can be detected greatly using leakage quality,
For micro oil liquid leak rate directly detection there is presently no comparatively ideal methods, and to the quantization of trace test test
Also none effective method affects interpretation of result and sealing effect evaluation to sealing experiment.
Leakage rate and leakage rate allowable be all in many cases it is extremely micro, by conventional method be difficult detection or
Testing cost is relatively high.The method of the position, time, leakage total amount and the rate that leak simultaneously is not yet.
Pass through the leakage of import and export flow measurement quantity of fluid；Pass through the leakage of import and export manometry gas；Fluorescence
The methods of agent, color dip method can analyze leakage phenomenon, but leak rate and leakage total amount etc. can not intuitively be embodied.
And existing air pressure bowssening-detection efficiency is low, is suitable for gross leak, is not suitable for minute leakage detection.
Utility model content
For above-mentioned shortcoming and defect in the prior art, the purpose of this utility model is to provide it is a kind of it is simple, quick,
Effective measurement liquid specifically leaks the test paper of unknown, time, leakage rate and leakage rate and has using what the test paper was formed
The sealing device of micro-leakage detection function.
The purpose of this utility model is achieved through the following technical solutions:
A kind of micro-leakage test paper, the film paper including oleophylic material have in film paper and are drawn by color developing agent
A plurality of vertical chromogenic line, the spacing between adjacent chromogenic line are equal.
It preferably, further include a plurality of horizontal chromogenic line, the horizontal chromogenic line intersects with vertical chromogenic line in netted
Distribution.
It preferably, is rectangular mesh in the minimum grid unit that the chromogenic line of net distribution is formed.
Preferably, the minimum grid unit is square grid.
A kind of sealing device with micro-leakage test function, it is convex in shaft including the sealing element being assembled in shaft
Shaft position for sealing element end face is along micro-leakage test paper described in its circumferentially attaching one.
Preferably, dynamic seal ring is provided in the end face of sealing element.
Preferably, the one side of the dynamic seal ring back to end face described in sealing element is warp surface.
Compared with prior art, the utility model embodiment has at least the following advantages:
The utility model relates to micro-leakage test paper be oleophylic material, by oily sensitive color developing agent in form of a coil, etc.
Compartment of terrain is fixed in film paper, and then film paper is fixed on the axis outside sealing ring, if there is oil leakage occurs, color developing agent
Color changes, the change speed of the quantity and photochromic amount that are changed colour by coil, can calculate time, the leakage of leakage
Total amount and rate, test method is simple, quick, and testing tool is easy to make, is low in cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the sealing device that the utility model has micro-leakage test function；
Fig. 2 is the structural schematic diagram of the utility model micro-leakage test paper test paper.
Specific embodiment
Below with reference to Fig. 1-2 and embodiment, the utility model is described in further detail, following embodiment be it is descriptive,
It is not restrictive, protection scope of this utility model cannot be limited by this.
A kind of micro-leakage test paper for sealing experiment platform, the film paper 1 including oleophylic material have in film paper 1
There is a plurality of vertical chromogenic line 2 drawn by color developing agent, the spacing between adjacent chromogenic line is equal.Color developing agent can be molten glimmering for oil
Photo etching.
It further include a plurality of horizontal chromogenic line 3, the horizontal chromogenic line 3 intersects with vertical chromogenic line 2 in net distribution.
It is rectangular mesh in the minimum grid unit that the chromogenic line of net distribution is formed.
The minimum grid unit is square grid.
Micro-leakage test paper can first draw a horizontal chromogenic line 3 and vertical chromogenic line 2 establishes coordinate in production
Then axis draws remaining horizontal chromogenic line 3 with a certain unit distance (such as 1mm or 1cm) and vertical chromogenic line 2 forms coordinate
Net, in this way micro-leakage test paper when in use, liquid leakage situation can intuitively be observed by vertical and horizontal coordinate very much, together
When corresponding information about liquid leakage can also be more efficiently calculated according to coordinate.
A kind of production method of the micro-leakage test paper for sealing experiment platform, passes through in the film paper 1 of oleophylic material
Color developing agent draws out a plurality of chromogenic line, then dries.
A kind of micro-leakage test method for sealing experiment platform, sealing experiment platform include shaft 4 and are assembled to shaft 4
On sealing element 5, protrude from the shaft position of 5 end face of sealing element in shaft 4 and circumferentially attach an above-mentioned micro-leakage along it
Test paper makes the closed coil of end to end formation one of the vertical chromogenic line 2 on micro-leakage test paper, the number to be changed colour by coil
Position, time, leakage total amount and the leak rate of leakage is calculated in the change speed of amount and photochromic amount.
A kind of sealing device with micro-leakage test function, including the sealing element 5 being assembled in shaft 4, in shaft 4
The shaft position of 5 end face of sealing element is protruded from along micro-leakage test paper described in its circumferentially attaching one；The end of sealing element 5
Dynamic seal ring 6 is provided in face；The one side of the dynamic seal ring 6 back to end face described in sealing element 5 is warp surface.When sealing,
The distortion end face of dynamic seal ring 6 is contacted with oil liquid, and warp surface makes hydraulic oil persistently generate dynamic pressure in 4 rotation process of shaft,
The fretting wear of sealing element 5 is effectively reduced in the entrance that other side medium (such as mud) can be obstructed.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
Subject to the scope of protection of the claims.
Claims (4)
1. a kind of micro-leakage test paper, which is characterized in that the film paper including oleophylic material has in film paper and passes through colour developing
The a plurality of vertical chromogenic line that agent is drawn, the spacing between adjacent chromogenic line are equal；It further include a plurality of horizontal chromogenic line, the water
Head up display colo(u)r streak and vertical chromogenic line intersect in net distribution；Minimum grid unit is square grid.
2. a kind of sealing device with micro-leakage test function, including the sealing element being assembled in shaft, which is characterized in that
A micro-leakage examination as described in claim 1 is circumferentially attached along it at the shaft position that shaft protrudes from sealing element end face
Paper.
3. the sealing device according to claim 2 with micro-leakage test function, which is characterized in that the institute of sealing element
It states and is provided with dynamic seal ring in end face.
4. the sealing device according to claim 3 with micro-leakage test function, which is characterized in that the dynamic sealing
Enclosing the one side back to end face described in sealing element is warp surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721384532.5U CN208254736U (en) | 2017-10-24 | 2017-10-24 | Micro-leakage test paper and sealing device with micro-leakage test function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721384532.5U CN208254736U (en) | 2017-10-24 | 2017-10-24 | Micro-leakage test paper and sealing device with micro-leakage test function |
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| Publication Number | Publication Date |
|---|---|
| CN208254736U true CN208254736U (en) | 2018-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721384532.5U Active CN208254736U (en) | 2017-10-24 | 2017-10-24 | Micro-leakage test paper and sealing device with micro-leakage test function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702867A (en) * | 2017-10-24 | 2018-02-16 | 中国地质大学（北京） | Micro-leakage test paper and preparation method thereof and method of testing, the sealing device with micro-leakage test function |
-
2017
- 2017-10-24 CN CN201721384532.5U patent/CN208254736U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702867A (en) * | 2017-10-24 | 2018-02-16 | 中国地质大学（北京） | Micro-leakage test paper and preparation method thereof and method of testing, the sealing device with micro-leakage test function |
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