CN210719581U - High-pressure sealing test cabin of deep coring device - Google Patents
High-pressure sealing test cabin of deep coring device Download PDFInfo
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- CN210719581U CN210719581U CN201922063165.4U CN201922063165U CN210719581U CN 210719581 U CN210719581 U CN 210719581U CN 201922063165 U CN201922063165 U CN 201922063165U CN 210719581 U CN210719581 U CN 210719581U
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Abstract
The utility model relates to a high-pressure sealing test cabin of a deep coring device, which comprises a cylinder body, an upper end sealing device and a lower end sealing device; the upper port sealing device comprises a locking ring, a central rod, an inner cylinder and an outer cylinder which are arranged from inside to outside, and a channel which is axially communicated is arranged on the central rod; the lower end of the center rod is provided with an outer step for supporting the inner cylinder, the upper end of the inner cylinder is provided with a supporting surface for supporting the inner step of the outer cylinder, the lower end of the outer cylinder is fixedly connected with the cylinder body, and the locking ring is fixedly connected with the upper end of the outer cylinder; the upper end of the central rod is in threaded connection with the locking ring, and the upper end sealing device can upwards tension the central rod by utilizing threads to enable the outer step to be abutted against the inner cylinder and the supporting surface to be abutted against the inner step, so that hard sealing of multiple end surfaces is formed. The utility model adopts the screw thread tensioning to make the sealing end face more tightly attached, enhances the sealing effect and is applicable to high pressure environment; the sealing surfaces at multiple positions are sealed by conical surfaces, so that the sealing performance is more reliable, the pressure-resistant characteristic of the pressure-holding chamber can be tested, and the test basis and data support can be provided for research and development and design of the fidelity core drilling machine.
Description
Technical Field
The utility model relates to a corer sealing device technical field especially relates to dark corer high-pressure seal test cabin.
Background
After a submarine drilling machine obtains a sample in deep sea, a fidelity cabin pressure maintaining control device is needed to perform pressure maintaining sealing on the sample in an in-situ environment. The sealing performance of the pressure holding cabin directly influences the pressure holding performance of the pressure holding cabin.
The pressure maintaining performance of the fidelity cabin needs to be continuously verified and improved through tests, so that a test platform is produced. The test platform comprises a test chamber and an external pressure supply unit. The sealing devices at the upper end and the lower end of the existing test chamber are sealed by adopting threaded plugs, the sealing performance of the threaded seal is poor, and the sealing failure is easy to occur under higher pressure.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at providing dark core taker high-pressure seal test chamber, sealing performance is reliable, and is applicable in high-pressure environment.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the high-pressure sealing test cabin of the deep corer comprises a cylinder, an upper end sealing device and a lower end sealing device, wherein the upper end sealing device is arranged at the upper end of the cylinder and used for sealing an upper port of the cylinder, and the lower end sealing device is arranged at the lower end of the cylinder and used for sealing a lower port of the cylinder;
the upper port sealing device comprises a central rod, a locking ring, an inner cylinder and an outer cylinder which are coaxially arranged, the central rod, the inner cylinder and the outer cylinder are sequentially arranged from inside to outside, and an axially through channel is formed in the central rod;
the lower end of the center rod is provided with a first outer step for supporting the inner barrel, the inner wall of the outer barrel is provided with a first inner step, the upper end of the inner barrel is provided with a first supporting surface for supporting the first inner step of the outer barrel, and the lower end of the outer barrel extends into the upper end of the barrel and is fixedly connected with the barrel;
the upper end of the central rod extends out of the upper port of the outer cylinder and is in threaded connection with the threaded hole of the locking ring, and the upper end sealing device can be used for tightening the central rod upwards by screwing the locking ring so that the first outer step is abutted against the inner cylinder and the first supporting surface is abutted against the first inner step to form hard sealing at multiple end faces.
When the central rod is tensioned upwards, the lower end face of the inner cylinder is abutted against the first outer step of the central rod.
Preferably, the contact surface of the first bearing surface and the first inner step is a conical surface.
Further, a sleeve is arranged between the central rod and the inner cylinder, a second outer step for supporting the sleeve is arranged outside the central rod, and a second inner step matched with the sleeve is arranged on the inner cylinder;
when the central rod is tensioned upwards, the lower end face of the sleeve abuts against the second outer step of the central rod, and the upper end face of the sleeve abuts against the second inner step.
Preferably, the contact surface of the lower end surface of the sleeve and the second outer step, and the contact surface of the upper end surface of the sleeve and the second inner step are both conical surfaces.
Furthermore, a third inner step for supporting the outer barrel is arranged on the inner wall of the barrel body, a third outer step is arranged on the outer barrel, the lower end face of the outer barrel abuts against the third inner step, and the upper end face of the barrel body abuts against the third outer step.
Preferably, the contact surface between the lower end surface of the outer cylinder and the third inner step, and the contact surface between the upper end surface of the cylinder and the third outer step are both conical surfaces.
Further, the lower end sealing device comprises a flap valve, the flap valve comprises a valve seat and a valve clack, one end of the valve clack is movably connected with the upper end of the valve seat, a valve port sealing surface matched with the valve clack is arranged at the top of the valve seat, and the valve clack is provided with a valve clack sealing surface matched with the valve port sealing surface.
Preferably, the valve port sealing surface is a conical surface, and the taper of the valve flap sealing surface is the same as that of the valve port sealing surface.
Further, the flap valve is fixed in the cylinder body through an external thread component, a spring and a mounting ring; the external thread component is in threaded connection with the lower port of the cylinder body, and the bottom surface of the valve seat is abutted against the external thread component;
the spring is compressed between the flap valve and the mounting ring, the inner wall of the cylinder body is provided with a fourth inner step for abutting against the mounting ring, the upper end of the spring abuts against the mounting ring to enable the mounting ring to abut against the fourth inner step, the lower end of the spring abuts against the valve clack to provide initial sealing pressure for the valve clack, and a sealing ring is arranged between the valve seat and the cylinder body.
Compared with the prior art, the utility model discloses following beneficial effect has:
1, the utility model adopts the screw thread tensioning to make the sealing end surface more tightly attached, enhances the sealing effect and is applicable to high pressure environment; the device can be used for testing the pressure resistance of the fidelity chamber, can verify the feasibility and the scientificity of a design scheme, is convenient for improving the fidelity chamber from the aspects of structure and material, and is favorable for providing test basis and data support for the research and development and design of the fidelity core drilling machine; it is composed of
2, a plurality of sealing surfaces are sealed by conical surfaces, so that the sealing performance is more reliable;
3, the utility model discloses can also be used to test the sealing performance and the deflection of different flap valves, verify the pressurize ability of the flap valve of isostructure, different shapes.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the utility model discloses a deep coring device high-pressure seal test cabin, including barrel 6, locate 6 upper ends of barrel and be used for the upper end sealing device of sealed barrel 6 upper port and locate the lower extreme sealing device that 6 lower extremes of barrel were used for sealed barrel 6 lower port.
The upper port sealing device comprises a central rod 10, a locking ring 9, an inner cylinder 7, a sleeve 11 and an outer cylinder 8 which are coaxially arranged, the central rod 10, the inner cylinder 7 and the outer cylinder 8 are sequentially arranged from inside to outside, the sleeve 11 is arranged between the central rod 10 and the inner cylinder 7, the central rod 10 is provided with an axially through channel 101, and the channel 101 can be used for being externally connected with a hydraulic source. The central rod 10 is provided with a first outer step 102 for supporting the inner cylinder 7 and a second outer step 103 for supporting the sleeve 11, the first outer step 102 is located at the lower end of the central rod 10, and the second outer step 103 is located above the first outer step 102.
The inner wall of the outer cylinder 8 is provided with a first inner step 81, the upper end of the inner cylinder 7 is provided with a first supporting surface 71 for supporting the first inner step 81 of the outer cylinder 8, the lower end of the outer cylinder 8 extends into the inner part of the upper end of the cylinder 6 and is fixedly connected with the cylinder 6, and the outer cylinder 8 is in threaded connection with the cylinder 6.
The upper end of the central rod 10 extends out of the upper port of the outer cylinder 8 and is in threaded connection with the threaded hole of the locking ring 9, the upper end sealing device can be used for screwing the locking ring 9 and tensioning the central rod 10 upwards to enable the first outer step 102 to abut against the inner cylinder 7, the first supporting surface 71 to abut against the first inner step 81, the lower end surface of the sleeve 11 to abut against the second outer step 103 of the central rod 10, and the upper end surface of the sleeve 11 to abut against the second inner step 72, so that hard sealing of multiple end surfaces is formed, and the sealing performance is more reliable. The locking ring 9 is tightly pressed against the outer cylinder 8 when locking.
In the present embodiment, when the center rod 10 is pulled upward, the lower end surface of the inner cylinder 7 abuts against the first outer step 102 of the center rod 10, and the contact surface between the lower end of the inner cylinder 7 and the first outer step 102 includes a horizontal ring surface and a conical surface. Of course, in other embodiments, an inner step can also be provided in the inner cylinder 7, which fits into the first outer step 102.
The inner wall of the cylinder 6 is provided with a third inner step 61 for supporting the outer cylinder 8, the outer cylinder 8 is provided with a third outer step 82, the lower end surface of the outer cylinder 8 is abutted against the third inner step 61, and the upper end surface of the cylinder 6 is abutted against the third outer step 82.
The contact surface between the lower end surface of the outer cylinder 8 and the third inner step 61 and the contact surface between the upper end surface of the cylinder 6 and the third outer step 82 are both conical surfaces. The contact surface of the first bearing surface 71 and the first inner step 81, the contact surface of the lower end surface of the sleeve 11 and the second outer step 103, and the contact surface of the upper end surface of the sleeve 11 and the second inner step 72 are all conical surfaces. The conical surface is sealed, so that higher sealing pressure can be borne, and the pressure maintaining capacity of the test chamber can be improved.
The diameter of the third inner step 61 is gradually increased from bottom to top, and the diameters of the third outer step 82, the first inner step 81, the second outer step 103 and the second inner step 72 are gradually increased from top to bottom.
The lower end sealing device comprises a flap valve, the flap valve comprises a valve seat 1 and a valve clack 2, one end of the valve clack 2 is movably connected with the upper end of the valve seat 1, a valve port sealing surface 11 matched with the valve clack 2 is arranged at the top of the valve seat 1, and the valve clack 2 is provided with a valve clack sealing surface matched with the valve port sealing surface 11.
In the embodiment, the valve port sealing surface 11 is a conical surface, and the taper of the valve flap sealing surface is the same as that of the valve port sealing surface 11. Of course, in other embodiments, the valve flap sealing surface and the valve port sealing surface 11 may be spherical.
In the embodiment, the flap valve is fixed in the cylinder 6 through the external thread part 3, the spring 4 and the mounting ring 5; the external thread component 3 is in threaded connection with the lower port of the cylinder 6, and the bottom surface of the valve seat 1 is abutted to the external thread component 3.
The spring 4 is compressed between the flap valve and the mounting ring 5, the inner wall of the cylinder 6 is provided with a fourth inner step 62 for abutting against the mounting ring 5, the upper end of the spring 4 abuts against the mounting ring 5 to enable the mounting ring 5 to abut against the fourth inner step 62, the lower end of the spring 4 abuts against the valve clack 2 to provide initial sealing pressure for the valve clack 2, and a sealing ring 21 is arranged between the valve seat 1 and the cylinder 6. The structure facilitates replacement of the flap valve, testing of sealing performance and deformation of different flap valves and verification of pressure maintaining capability of flap valves with different structures and different shapes.
When installing flap valve 5, invert barrel 6, put into barrel 6 with collar 5 in, because there is the fourth inside step 62 that is used for supporting collar 5 inside barrel 6, just stop when collar 5 falls on fourth inside step 62, then put into barrel 6 with spring 4, put into barrel 6 with the flap valve of closure state again, the flap valve is pressed on spring 4, make 4 lower extremes of spring top on collar 5, 4 upper ends tops of spring prevent that flap valve 5 from continuing the whereabouts on valve clack 2, spring 4 provides initial sealing pressure for valve clack 2 simultaneously, twist up external screw thread part 3 again afterwards and support on disk seat 1, realize that the installation of flap valve is fixed, later with barrel 6 upright can.
Of course, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and that such changes and modifications are intended to be included within the scope of the appended claims.
Claims (10)
1. Deep coring ware high-pressure seal test chamber, including the barrel, locate the barrel upper end and be used for the upper end sealing device of sealed barrel upper port and locate the lower extreme sealing device that the barrel lower extreme is used for port under the sealed barrel, its characterized in that:
the upper port sealing device comprises a central rod, a locking ring, an inner cylinder and an outer cylinder which are coaxially arranged, the central rod, the inner cylinder and the outer cylinder are sequentially arranged from inside to outside, and an axially through channel is formed in the central rod;
the lower end of the center rod is provided with a first outer step for supporting the inner barrel, the inner wall of the outer barrel is provided with a first inner step, the upper end of the inner barrel is provided with a first supporting surface for supporting the first inner step of the outer barrel, and the lower end of the outer barrel extends into the upper end of the barrel and is fixedly connected with the barrel;
the upper end of the central rod extends out of the upper port of the outer cylinder and is in threaded connection with the threaded hole of the locking ring, and the upper end sealing device can be used for tightening the central rod upwards by screwing the locking ring so that the first outer step is abutted against the inner cylinder and the first supporting surface is abutted against the first inner step to form hard sealing at multiple end faces.
2. The deep corer high pressure seal test capsule of claim 1, wherein: when the central rod is tensioned upwards, the lower end surface of the inner cylinder is abutted against the first outer step of the central rod.
3. The deep corer high pressure seal test capsule of claim 1, wherein: the contact surface of the first bearing surface and the first inner step is a conical surface.
4. The deep corer high pressure seal test capsule of claim 1, 2 or 3, wherein: a sleeve is further arranged between the central rod and the inner cylinder, a second outer step for supporting the sleeve is arranged outside the central rod, and a second inner step matched with the sleeve is arranged on the inner cylinder;
when the central rod is tensioned upwards, the lower end face of the sleeve abuts against the second outer step of the central rod, and the upper end face of the sleeve abuts against the second inner step.
5. The deep corer high pressure seal test capsule of claim 4, wherein: the contact surface of the lower end surface of the sleeve and the second outer step and the contact surface of the upper end surface of the sleeve and the second inner step are conical surfaces.
6. The deep corer high pressure seal test capsule of claim 1, wherein: the inner wall of the cylinder body is provided with a third inner step for supporting the outer cylinder, the outer cylinder is provided with a third outer step, the lower end face of the outer cylinder is abutted against the third inner step, and the upper end face of the cylinder body is abutted against the third outer step.
7. The deep corer high pressure seal test capsule of claim 6, wherein: the contact surface of the lower end face of the outer barrel and the third inner step and the contact surface of the upper end face of the barrel and the third outer step are conical surfaces.
8. The deep corer high pressure seal test capsule of claim 1, wherein: the lower end sealing device comprises a flap valve, the flap valve comprises a valve seat and a valve clack, one end of the valve clack is movably connected with the upper end of the valve seat, a valve port sealing surface matched with the valve clack is arranged at the top of the valve seat, and the valve clack is provided with a valve clack sealing surface matched with the valve port sealing surface.
9. The deep corer high pressure seal test capsule of claim 8, wherein: the valve port sealing surface is a conical surface, and the taper of the valve clack sealing surface is the same as that of the valve port sealing surface.
10. The deep corer high pressure seal test capsule of claim 8 or 9, wherein: the flap valve is fixed in the cylinder body through an external thread component, a spring and a mounting ring; the external thread component is in threaded connection with the lower port of the cylinder body, and the bottom surface of the valve seat is abutted against the external thread component;
the spring is compressed between the flap valve and the mounting ring, the inner wall of the cylinder body is provided with a fourth inner step for abutting against the mounting ring, the upper end of the spring abuts against the mounting ring to enable the mounting ring to abut against the fourth inner step, the lower end of the spring abuts against the valve clack to provide initial sealing pressure for the valve clack, and a sealing ring is arranged between the valve seat and the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922063165.4U CN210719581U (en) | 2019-11-26 | 2019-11-26 | High-pressure sealing test cabin of deep coring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922063165.4U CN210719581U (en) | 2019-11-26 | 2019-11-26 | High-pressure sealing test cabin of deep coring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210719581U true CN210719581U (en) | 2020-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922063165.4U Active CN210719581U (en) | 2019-11-26 | 2019-11-26 | High-pressure sealing test cabin of deep coring device |
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| Country | Link |
|---|---|
| CN (1) | CN210719581U (en) |
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2019
- 2019-11-26 CN CN201922063165.4U patent/CN210719581U/en active Active
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