CN214576847U - Rely on magnetic force to trigger coring equipment that realizes pressurize - Google Patents
Rely on magnetic force to trigger coring equipment that realizes pressurize Download PDFInfo
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- CN214576847U CN214576847U CN202120654756.3U CN202120654756U CN214576847U CN 214576847 U CN214576847 U CN 214576847U CN 202120654756 U CN202120654756 U CN 202120654756U CN 214576847 U CN214576847 U CN 214576847U
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Abstract
The utility model relates to a rely on magnetic force to trigger coring equipment that realizes pressurize belongs to pressurize coring technical field, including urceolus, core barrel and flap valve, the flap valve includes disk seat and valve clack, the flap valve is installed in the urceolus, be equipped with second magnetic part on the valve clack, correspond on the urceolus the position of second magnetic part is installed rightly the second magnetic part produces the first magnetic part of repulsion force. The utility model changes the spring providing initial closing power for the valve clack into a magnetic part, the repulsion force generated by the repulsion of the magnets is far larger than the elastic force generated by the spring, and the magnetic potential energy generated between the magnets in the initial stage is larger; and because the valve clack is spacing by the core barrel for the energy accumulation that magnetic potential energy produced loses core barrel spacing back, this energy will thoroughly transform into the kinetic energy of valve clack, makes the valve clack obtain great kinetic energy, thereby guarantees that it overcomes gravity or frictional force and closes fast, prevents that the valve clack from turning on one's side, does benefit to the sealing performance who guarantees the ballast.
Description
Technical Field
The utility model relates to a pressurize coring technique field especially relates to a rely on magnetic force to trigger coring equipment that realizes the pressurize.
Background
The characteristics of deep rock such as physical mechanics, chemical biology and the like are closely related to the in-situ environmental conditions, the in-situ environmental loss in the coring process can cause the distortion and the irreversible change of the physicochemical property and the mechanical property of the rock core, and the key of the attack is how to obtain the in-situ rock core under the deep environmental conditions and carry out real-time loading test and analysis under the in-situ fidelity state.
In the existing in-situ fidelity coring device, a core is stored in a fidelity cabin after the core is drilled by a drilling tool, and then a sample is subjected to pressure maintaining and sealing by a fidelity cabin pressure maintaining control device.
The fidelity cabin pressure maintaining control device comprises a pressure maintaining valve, and the pressure maintaining valve comprises a ball valve, a flap valve and the like. When the core barrel is lifted to a certain height, the flap valve can be automatically closed. At present, the closing of the flap valve is mainly triggered by elasticity. The elastic force trigger can only be applied when the drilling machine drills downwards vertically, the elastic potential energy generated by the spring is small, when the drilling machine drills horizontally or drills upwards vertically, the elastic potential energy of the spring is insufficient to provide enough energy to enable the valve clack to overcome friction force or gravity to rotate and close, and the problems that the sealing is invalid and the like are caused when the valve clack turns over are solved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned technical problem and provide a rely on magnetic force to trigger the coring equipment that realizes the pressurize.
The utility model discloses a following technical scheme realizes:
the utility model provides a rely on magnetic force to trigger equipment of coring that realizes pressurize, includes urceolus, a core barrel and flap valve, the flap valve includes disk seat and valve clack, the flap valve is installed in the urceolus, be equipped with second magnetism spare on the valve clack, correspond on the urceolus the position of second magnetism spare is installed rightly the first magnetism spare of second magnetism spare production repulsion force.
Preferably, the first and second magnetic members are permanent magnets.
Further, a third magnetic member for generating an attraction force to the second magnetic member is provided on the valve seat.
Preferably, the third magnetic member is a permanent magnet.
Preferably, the valve flap is made of a paramagnetic material.
Further preferably, the valve flap is made of iron.
Preferably, the valve seat is made of a ferrous low permeability material.
Further preferably, the valve seat is made of stainless steel.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model changes the spring providing initial closing power for the valve clack into a magnetic part, the repulsion force generated by the repulsion of the magnets is far larger than the elastic force generated by the spring, and the magnetic potential energy generated between the magnets in the initial stage is larger; and because the valve clack is spacing by the core barrel for the energy accumulation that magnetic potential energy produced loses core barrel spacing back, this energy will thoroughly transform into the kinetic energy of valve clack, makes the valve clack obtain great kinetic energy, thereby guarantees that it overcomes gravity or frictional force and closes fast, prevents that the valve clack from turning on one's side, does benefit to the sealing performance who guarantees the ballast.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.
FIG. 1 is a schematic view of a core barrel when in a valve seat;
fig. 2 is a schematic view of the flap valve closed.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention will be combined to clearly and completely describe the technical solutions of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "inside" and "outside" are used to indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, or the position or positional relationship that a person skilled in the art would conventionally understand, and are only used for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to be referred to must have a specific position, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figures 1 and 2, the utility model discloses a rely on magnetic force to trigger coring equipment who realizes pressurize, including urceolus 1, core barrel 4 and flap valve, the flap valve includes disk seat 2 and valve clack 3, and valve clack 3 one side is connected with 2 one end of disk seat, and the flap valve is installed in urceolus 1.
The valve flap 3 is provided with a second magnetic member 31, and the outer cylinder 1 is provided with a first magnetic member 11 which generates a repulsive force to the second magnetic member 31 at a position corresponding to the second magnetic member 31. The valve seat 2 has a third magnetic member 21 for generating an attractive force to the second magnetic member 31.
The first magnetic member 11, the second magnetic member 31, and the third magnetic member 21 are permanent magnets.
The second magnetic member 31 may be embedded on the valve flap 2.
As a better alternative: the valve clack 2 is made of paramagnetic material with large magnetic conductivity and high compressive strength. The reason is that: a paramagnetic material is selected to manufacture the valve clack 2, the permanent magnet on the valve clack 2 can magnetize the valve clack 2, after the valve clack 2 is closed, the magnetic potential of the permanent magnet inside the valve seat 1 can be coupled with the magnetic potential possessed by the valve clack 2, and according to the principle of minimum potential energy, the valve clack can have a larger attraction force, so that the gravitational potential is overcome, and the effect of continuous closing is achieved. In the embodiment, iron is selected as the valve flap 2, and the valve seat 1 is selected to be stainless steel. The reason why the valve seat 1 is made of stainless steel is as follows: the stainless steel is a low-permeability substance, and the magnetic field in the stainless steel does not generate magnetic potential on the stainless steel, so that the closing track of the valve clack 2 is not influenced.
The utility model discloses a theory of operation:
as shown in fig. 1, during core drilling, the core barrel 4 is positioned in the valve seat 2, and the valve flap 3 is limited between the core barrel 4 and the outer barrel 1; at this time, the first magnetic member 11 generates a repulsive magnetic force to the second magnetic member 31, and the repulsive magnetic force gives an initial power to the valve flap 3;
as shown in fig. 2, after the core barrel 4 is lifted to be higher than the valve clack 3, the valve clack 3 loses the limit of the core barrel 4, and the initial power of the first magnetic member 11 to the valve clack 3 causes the valve clack 3 to close and rotate rapidly; when the valve clack 3 rotates to a certain angle, the valve clack 3 is attracted by the third magnetic part 21, so that the valve clack 3 is rapidly closed with the valve seat, and the sealing performance of the flap valve is greatly improved.
The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a rely on magnetic force to trigger coring equipment that realizes pressurize, includes urceolus, core barrel and flap valve, the flap valve includes disk seat and valve clack, the flap valve is installed in the urceolus, its characterized in that: the valve clack is provided with a second magnetic part, and a first magnetic part generating repulsive force to the second magnetic part is arranged on the outer barrel corresponding to the second magnetic part.
2. A magnetically triggered pressure dwell coring apparatus as claimed in claim 1, wherein: the first magnetic part and the second magnetic part are permanent magnets.
3. A magnetically triggered pressure dwell coring apparatus as claimed in claim 1 or 2, wherein: and a third magnetic part for generating attraction force to the second magnetic part is arranged on the valve seat.
4. A magnetically triggered pressure dwell coring apparatus as claimed in claim 3, wherein: the third magnetic part is a permanent magnet.
5. A magnetically triggered pressure dwell coring apparatus as claimed in claim 1 or 2, wherein: the valve flap is made of a paramagnetic material.
6. A magnetically triggered pressure dwell coring apparatus as claimed in claim 5, wherein: the valve clack is made of iron.
7. A magnetically triggered pressure dwell coring apparatus as claimed in claim 1 or 6, wherein: the valve seat is made of iron low magnetic permeability material.
8. A magnetically triggered pressure dwell coring apparatus as claimed in claim 1, wherein: the valve seat is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120654756.3U CN214576847U (en) | 2021-03-31 | 2021-03-31 | Rely on magnetic force to trigger coring equipment that realizes pressurize |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120654756.3U CN214576847U (en) | 2021-03-31 | 2021-03-31 | Rely on magnetic force to trigger coring equipment that realizes pressurize |
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| CN214576847U true CN214576847U (en) | 2021-11-02 |
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| CN202120654756.3U Active CN214576847U (en) | 2021-03-31 | 2021-03-31 | Rely on magnetic force to trigger coring equipment that realizes pressurize |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963108A (en) * | 2021-03-31 | 2021-06-15 | 四川大学 | Coring equipment capable of realizing pressure maintaining by magnetic force triggering |
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2021
- 2021-03-31 CN CN202120654756.3U patent/CN214576847U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963108A (en) * | 2021-03-31 | 2021-06-15 | 四川大学 | Coring equipment capable of realizing pressure maintaining by magnetic force triggering |
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