CN216081641U - Pressure guiding head structure of shallow water underwater flowmeter - Google Patents
Pressure guiding head structure of shallow water underwater flowmeter Download PDFInfo
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- CN216081641U CN216081641U CN202122760989.4U CN202122760989U CN216081641U CN 216081641 U CN216081641 U CN 216081641U CN 202122760989 U CN202122760989 U CN 202122760989U CN 216081641 U CN216081641 U CN 216081641U
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Abstract
The utility model discloses a pressure guiding structure of a shallow water underwater flowmeter, which comprises a flowmeter main body, a pressure guiding joint and a pressure guiding joint locking seat, wherein the pressure guiding joint is arranged in a pressure guiding hole in the flowmeter main body through the pressure guiding joint locking seat. According to the technical scheme, the pressure head structure is drawn to shallow water underwater flowmeter, the novel structure, and the design is ingenious, the realization is easy, because draw pressure joint locking seat can realize the meet soon with drawing the pressure hole through modes such as threaded connection and bloated tight, thereby not only can be through drawing pressure joint locking seat high-efficiently conveniently will draw in the pressure hole that draws that the pressure joint was installed in the flowmeter main part, and can play effectual sealed effect, high reliability, avoid taking place the condition of gas-liquid leakage, satisfy the leakproofness and the corrosivity requirement of shallow water environment, for traditional flange joint, the assembly degree of difficulty has still been reduced, the assembly efficiency has been promoted.
Description
Technical Field
The utility model relates to the technical field of flowmeters, in particular to a pressure guide head structure of a shallow water underwater flowmeter.
Background
An underwater flow meter is a key device for measuring well flow of an ocean oil and gas well. Unlike multiphase flow meters used on land or drilling platforms, underwater flow meters are required to face more severe marine environments, and not only are accurate measurement of well flow of marine oil and gas wells realized, but also excellent corrosion resistance and sealing performance are required.
At present, because the volume of a differential pressure gauge of the flowmeter is large, the pressure guiding joint and the flowmeter main body can only be connected by adopting a flange so as to meet the requirement of sealing property. The applicant designs a set of brand-new shallow water underwater flow aiming at the shallow water environment, the measurement precision is ensured, the volume of the differential pressure gauge is greatly reduced, and if the flange is still adopted to connect the pressure-leading joint and the flowmeter, although the requirements on reliability and sealing performance can still be well met, the assembly procedures are more, and the assembly efficiency is low.
It is urgent to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a pressure guide head structure of a shallow water underwater flowmeter.
The technical scheme is as follows:
the utility model provides a shallow water is flowmeter and is drawn pressure head structure under water, includes the flowmeter main part and draws the pressure joint, seted up in the flowmeter main part and drawn the pressure hole, its main points lie in: the pressure-leading joint comprises a pressure-leading pipe connecting section and a connecting hole embedding section which are sequentially connected along the axial direction, at least part of the connecting hole embedding section protrudes out of the pressure-leading pipe connecting section along the circumferential direction, and a pressure-leading joint locking seat matched with the pressure-leading hole is sleeved on the pressure-leading pipe connecting section;
when the pressure-guiding joint locking seat is locked on the pressure-guiding hole, the connecting hole embedding section can be limited between the insertion end of the pressure-guiding joint locking seat and the hole bottom of the pressure-guiding hole, and a gap between the peripheral surface of the pressure-guiding pipe connecting section and the wall of the pressure-guiding hole is sealed.
Structure more than adopting, because draw pressure joint locking seat can realize connecing soon through modes such as threaded connection and bloated tightly with drawing the pressure hole to not only can be through drawing the pressure joint locking seat high-efficiently conveniently will draw the pressure joint and install the pressure hole that draws in the flowmeter main part, can play effectual sealed effect moreover, good reliability, avoid taking place the condition of gas-liquid leakage, satisfy the leakproofness and the corrosivity requirement of shallow water environment, for traditional flange joint, still reduced the assembly degree of difficulty, the assembly efficiency has been promoted.
Preferably, the method comprises the following steps: the pressure-inducing joint locking seat comprises a hexagon nut section and a screw section, wherein the hexagon nut section is sequentially connected along the axial direction, the screw section is matched with the pressure-inducing hole, a joint external thread is processed on the outer peripheral surface of the screw section, and a hole wall internal thread matched with the joint external thread is processed on the hole wall of the pressure-inducing hole. Structure more than adopting draws and presses joint locking seat and draws and press the hole to adopt screw-thread fit's mode, rotates the hexagon nut section through the spanner and just can assemble and disassemble fast high-efficiently and draw and press joint locking seat, and leakproofness and corrosivity are good simultaneously.
Preferably, the method comprises the following steps: the minimum diameter of the hexagonal nut section is larger than that of the screw section. By adopting the structure, the limiting function can be achieved, and the sealing performance can be improved.
Preferably, the method comprises the following steps: the pressure guiding hole is provided with a locking seat connecting section which is adaptive to the screw rod section and a joint sealing section which is adaptive to the connecting hole embedding section, the inner thread of the hole wall is formed on the hole wall of the locking seat connecting section, and the peripheral surface of the connecting hole embedding section is attached to the hole wall of the joint sealing section. By adopting the structure, the outer peripheral surface of the connecting hole embedding section is attached to the hole wall of the joint sealing section, so that the sealing performance can be further improved.
Preferably, the method comprises the following steps: the pressure guiding pipe connecting section and the connecting hole embedding section are both of tubular structures, the outer diameter of the pressure guiding pipe connecting section is smaller than that of the connecting hole embedding section, the pressure guiding joint locking seat is provided with a joint mounting hole penetrating along the axial direction, and the joint mounting hole comprises a joint passing section adaptive to the pressure guiding pipe connecting section and a joint limiting section adaptive to the connecting hole embedding section. By adopting the structure, the connecting hole built-in section can be more reliably locked between the insertion end of the pressure-guiding joint locking seat and the hole bottom of the pressure-guiding hole, and the sealing performance can be further improved.
Preferably, the method comprises the following steps: one end of the connecting hole embedding section, which is close to the connecting section of the pressure guiding pipe, is matched with one end of the joint limiting section, which is close to the joint passing section, in a conical surface mode. By adopting the structure, the connecting hole embedding section is matched with the conical surface of the corresponding position of the joint limiting section, so that the connecting hole embedding section and the joint limiting section can be attached more tightly, and the sealing performance is further improved.
Preferably, the method comprises the following steps: the one end that the section was kept away from to the induced pressure pipe linkage segment is put into to the connecting hole and the sealed heavy groove conical surface cooperation of toper of shaping at the induced pressure hole bottom, it has the infusion passageway that runs through the section of putting into of induced pressure pipe linkage segment and connecting hole along the axial to draw pressure joint, the tank bottom of the sealed heavy groove of toper is provided with draws the liquid passageway, and the both ends that should draw the liquid passageway communicate with the fluid measurement passageway in infusion passageway and the flowmeter main part respectively. By adopting the structure, the connecting hole is arranged in the conical surface matching of the section and the conical sealing sinking groove, so that the two can be attached more tightly, the sealing performance is further improved, and the sealing performance of the butt joint of the infusion channel and the liquid guiding channel can be ensured.
Preferably, the method comprises the following steps: the outer peripheral surface of the connecting hole imbedding section is provided with at least one circle of sealing ring installation groove, and a joint sealing ring which is in interference fit with the connecting hole imbedding section and the pressure guide hole is arranged in the sealing ring installation groove. Structure more than adopting, through setting up the joint sealing washer, can further promote sealing performance.
Compared with the prior art, the utility model has the beneficial effects that:
according to the technical scheme, the pressure head structure is drawn to shallow water underwater flowmeter, the novel structure, and the design is ingenious, the realization is easy, because draw pressure joint locking seat can realize the meet soon with drawing the pressure hole through modes such as threaded connection and bloated tight, thereby not only can be through drawing pressure joint locking seat high-efficiently conveniently will draw in the pressure hole that draws that the pressure joint was installed in the flowmeter main part, and can play effectual sealed effect, high reliability, avoid taking place the condition of gas-liquid leakage, satisfy the leakproofness and the corrosivity requirement of shallow water environment, for traditional flange joint, the assembly degree of difficulty has still been reduced, the assembly efficiency has been promoted.
Drawings
FIG. 1 is a schematic diagram of the fitting relationship between a pressure-inducing joint, a pressure-inducing joint locking seat and a flowmeter body;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic structural view of a pressure-inducing joint;
FIG. 4 is a cross-sectional view of a portion of a flowmeter body;
fig. 5 is a cross-sectional view of a pull-on tab lock seat.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1 and fig. 2, the pressure guiding structure of the shallow water underwater flowmeter comprises a flowmeter main body 10, a pressure guiding joint 20 and a pressure guiding joint locking seat 30, wherein the pressure guiding joint 20 is installed in a pressure guiding hole 11 on the flowmeter main body 10 through the pressure guiding joint locking seat 30. Draw and press joint locking seat 30 can realize the meet soon through modes such as threaded connection and bloated tight with drawing pressure hole 11 to not only can install high-efficiently and draw pressure joint 20, can play effectual sealed effect moreover, the good reliability.
Specifically, the pressure introduction hole 11 is opened on the flowmeter body 10, the pressure introduction hole 11 is provided with a liquid introduction passage 12 communicating with the fluid measurement passage 13 of the flowmeter body 10, referring to fig. 3, the pressure introduction joint 20 includes a pressure introduction pipe connecting section 21 and a connecting hole inserting section 22 which are connected in sequence along the axial direction, the pressure introduction joint 20 has a liquid delivery passage 23 axially penetrating the pressure introduction pipe connecting section 21 and the connecting hole inserting section 22, the connecting hole inserting section 22 at least partially protrudes from the pressure introduction pipe connecting section 21 along the circumferential direction, when the pressure introduction joint locking seat 30 is locked on the pressure introduction hole 11, the connecting hole inserting section 22 can be limited between the insertion end of the pressure introduction joint locking seat 30 and the hole bottom of the pressure introduction hole 11, and a gap between the outer circumferential surface of the pressure introduction pipe connecting section 21 and the hole wall of the pressure introduction hole 11 is sealed, and the liquid delivery passage 23 is communicated with the liquid introduction passage 12, so that the gas and liquid of the fluid measurement passage 13 can be introduced into the liquid delivery passage 23 of the pressure introduction joint 20 through the liquid introduction passage 12, and finally to a pressure lead tube connected to a differential pressure gauge.
Referring to fig. 2 and 5, the pressure-inducing joint locking seat 30 includes a hexagon nut section 31 and a screw section 32 corresponding to the pressure-inducing hole 11, which are sequentially connected along the axial direction, a joint external thread 32a is formed on the outer circumferential surface of the screw section 32, and a hole wall internal thread 11a in threaded engagement with the joint external thread 32a is formed on the hole wall of the pressure-inducing hole 11. Rotate hexagon nut section 31 through the spanner and just can high efficiency dismouting draw pressure joint locking seat 30 to, hexagon nut section 31's minimum diameter is greater than the diameter of screw rod section 32, not only can play limiting displacement, can promote the leakproofness moreover.
Further, the end of the pressure guiding pipe connecting section 21, which is far away from the connecting hole placing section 22, is provided with a chamfer, and the end of the screw section 32, which is far away from the hexagon nut section 31, is provided with a chamfer, so that the two can be assembled conveniently, and the clamping stagnation can be avoided.
Referring to fig. 2, 4 and 5, in order to ensure the sealing performance and reliability of the installation of the pressure guiding joint 20, the pressure guiding hole 11 has a locking seat connecting section 11c corresponding to the screw section 32 and a joint sealing section 11d corresponding to the connection hole inserting section 22, a hole wall internal thread 11a is formed on the hole wall of the locking seat connecting section 11c, and the peripheral surface of the connection hole inserting section 22 is attached to the hole wall of the joint sealing section 11 d. Meanwhile, the pressure guiding pipe connecting section 21 and the connecting hole embedding section 22 are both of a tubular structure, the outer diameter of the pressure guiding pipe connecting section 21 is smaller than that of the connecting hole embedding section 22, the pressure guiding joint locking seat 30 is provided with a joint mounting hole 33 penetrating along the axial direction, and the joint mounting hole 33 comprises a joint passing section 33a adapted to the pressure guiding pipe connecting section 21 and a joint limiting section 33b adapted to the connecting hole embedding section 22.
In order to further improve the sealing performance and reliability of the installation of the pressure guiding joint 20, a design of matching a double conical surface and a sealing ring is adopted, specifically: the end of the connection hole introducing section 22 adjacent to the pressure introduction pipe connecting section 21 is taper-fitted to the end of the joint defining section 33b adjacent to the joint passing section 33 a. Meanwhile, one end of the connecting hole placing section 22, which is far away from the pressure guiding pipe connecting section 21, is in conical surface fit with a conical sealing sinking groove 11b formed at the bottom of the hole of the pressure guiding hole 11, one end of the liquid guiding channel 12 penetrates through the bottom of the conical sealing sinking groove 11b, namely, one end of the liquid guiding channel 12 is communicated with the liquid conveying channel 23, and the other end of the liquid guiding channel is communicated with the fluid metering channel 13 formed in the flow meter main body 10. And, there is at least a circle of seal ring mounting groove 22a on the peripheral surface of the connecting hole imbedding section 22, there is a joint seal ring 40 in the seal ring mounting groove 22a with the connecting hole imbedding section 22 and the pressure guiding hole 11 interference fit respectively. It should be noted that the joint seal ring 40 is an O-ring, which is simple, reliable and low cost.
Further, the pressure guiding joint 20 and the pressure guiding joint locking seat 30 are integrally formed, so that the structural strength of the pressure guiding joint 20 and the pressure guiding joint locking seat 30 can be effectively improved.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a shallow water is flowmeter and is drawn pressure head structure under water, includes flowmeter main part (10) and draws pressure joint (20), seted up on flowmeter main part (10) and drawn pressure hole (11), its characterized in that: the pressure guiding joint (20) comprises a pressure guiding pipe connecting section (21) and a connecting hole embedding section (22) which are sequentially connected along the axial direction, at least part of the connecting hole embedding section (22) protrudes out of the pressure guiding pipe connecting section (21) along the circumferential direction, and a pressure guiding joint locking seat (30) matched with the pressure guiding hole (11) is sleeved on the pressure guiding pipe connecting section (21);
when the pressure guiding joint locking seat (30) is locked on the pressure guiding hole (11), the connecting hole embedding section (22) can be limited between the insertion end of the pressure guiding joint locking seat (30) and the hole bottom of the pressure guiding hole (11), and a gap between the outer peripheral surface of the pressure guiding pipe connecting section (21) and the hole wall of the pressure guiding hole (11) is sealed.
2. The shallow water underwater flowmeter pressure-inducing structure of claim 1, characterized in that: draw and press joint locking seat (30) including along hexagonal nut section (31) that the axial connects gradually and with lead screw section (32) that pressure hole (11) suited, processing has joint external screw thread (32a) on the outer peripheral face of screw section (32), it has pore wall internal thread (11a) with joint external screw thread (32a) screw-thread fit to draw to process on the pore wall in pressure hole (11).
3. The shallow water underwater flowmeter pressure-inducing structure of claim 2, characterized in that: the minimum diameter of the hexagonal nut section (31) is larger than the diameter of the screw section (32).
4. The shallow water underwater flowmeter pressure-inducing structure of claim 2 or 3, wherein: the pressure leading hole (11) is provided with a locking seat connecting section (11c) adaptive to the screw section (32) and a joint sealing section (11d) adaptive to the connecting hole embedding section (22), a hole wall internal thread (11a) is formed on the hole wall of the locking seat connecting section (11c), and the peripheral surface of the connecting hole embedding section (22) is attached to the hole wall of the joint sealing section (11 d).
5. The shallow water underwater flowmeter pressure-inducing structure of claim 1, characterized in that: the pressure guiding pipe connecting section (21) and the connecting hole embedding section (22) are both of tubular structures, the outer diameter of the pressure guiding pipe connecting section (21) is smaller than that of the connecting hole embedding section (22), the pressure guiding joint locking seat (30) is provided with a joint mounting hole (33) penetrating along the axial direction, and the joint mounting hole (33) comprises a joint passing section (33a) adaptive to the pressure guiding pipe connecting section (21) and a joint limiting section (33b) adaptive to the connecting hole embedding section (22).
6. The shallow water underwater flowmeter pressure-inducing structure of claim 5, characterized in that: one end of the connecting hole embedding section (22) close to the pressure guiding pipe connecting section (21) is in conical fit with one end of the joint limiting section (33b) close to the joint passing section (33 a).
7. The shallow water underwater flowmeter pressure guiding structure of any one of claims 1, 5 and 6, wherein: one end of the connecting hole imbedding section (22) far away from the pressure guiding pipe connecting section (21) is in conical surface fit with a conical sealing sinking groove (11b) formed at the bottom of the pressure guiding hole (11), the pressure guiding joint (20) is provided with a liquid conveying channel (23) which penetrates through the pressure guiding pipe connecting section (21) and the connecting hole imbedding section (22) along the axial direction, the bottom of the conical sealing sinking groove (11b) is provided with a liquid guiding channel (12), and two ends of the liquid guiding channel (12) are respectively communicated with the liquid conveying channel (23) and a fluid metering channel (13) in the flowmeter main body (10).
8. The shallow water underwater flowmeter pressure-inducing structure of claim 1, characterized in that: the outer peripheral surface of the connecting hole embedding section (22) is provided with at least one circle of sealing ring installation groove (22a), and a joint sealing ring (40) which is in interference fit with the connecting hole embedding section (22) and the pressure guide hole (11) is arranged in the sealing ring installation groove (22 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122760989.4U CN216081641U (en) | 2021-11-10 | 2021-11-10 | Pressure guiding head structure of shallow water underwater flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122760989.4U CN216081641U (en) | 2021-11-10 | 2021-11-10 | Pressure guiding head structure of shallow water underwater flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216081641U true CN216081641U (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122760989.4U Active CN216081641U (en) | 2021-11-10 | 2021-11-10 | Pressure guiding head structure of shallow water underwater flowmeter |
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| Country | Link |
|---|---|
| CN (1) | CN216081641U (en) |
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2021
- 2021-11-10 CN CN202122760989.4U patent/CN216081641U/en active Active
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