CN220504979U - Built-in hydraulic sand blasting cutting nozzle - Google Patents
Built-in hydraulic sand blasting cutting nozzle Download PDFInfo
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- CN220504979U CN220504979U CN202321854585.4U CN202321854585U CN220504979U CN 220504979 U CN220504979 U CN 220504979U CN 202321854585 U CN202321854585 U CN 202321854585U CN 220504979 U CN220504979 U CN 220504979U
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- nozzle
- hole
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- cutting
- hydraulic
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- 238000005520 cutting process Methods 0.000 title claims abstract description 58
- 238000005488 sandblasting Methods 0.000 title claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000005422 blasting Methods 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 238000001802 infusion Methods 0.000 claims description 22
- 238000003825 pressing Methods 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 13
- 230000033001 locomotion Effects 0.000 claims description 10
- 230000003628 erosive effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 19
- 230000009471 action Effects 0.000 description 5
- 239000002173 cutting fluid Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000004484 Briquette Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 239000003082 abrasive agent Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Abstract
The application relates to the technical field of oil and gas field exploitation and discloses an internal hydraulic sand blasting cutting nozzle which comprises a body and a nozzle, wherein the nozzle is arranged in a nozzle hole of the body, a liquid spraying hole on the end surface of the body is communicated with the nozzle, a liquid inlet on the tail part of the body is connected with a liquid conveying pipeline, the liquid conveying pipeline is communicated with the nozzle, the nozzle hole is a conical hole, the peripheral surface of the nozzle is a conical surface matched with the conical hole, and the aperture of the conical hole gradually decreases along the fluid direction; at least two nozzles are arranged on the body in a linear arrangement. The nozzle of this application when using, the nozzle can not drop from the body, has promoted hydraulic blasting cutting equipment's reliability and life to wellhead cutting operating efficiency has also been improved.
Description
Technical Field
The application relates to the technical field of oil and gas field exploitation, in particular to oil and gas well rescue operation equipment, and more particularly relates to a built-in hydraulic sand blasting cutting nozzle.
Background
When the blowout of the oil-gas well is out of control and catches fire, the common situation is that a derrick is burnt or a wellhead device is damaged, and barrier removal cutting and wellhead cutting operations need to be implemented. At present, the cutting modes adopted in the barrier removal cutting and wellhead cutting of the out-of-control emergency of blowout include mechanical cutting, flame cutting, hydraulic cutting and the like. And wellhead cutting, particularly remote wellhead cutting under the condition of wellhead damage after out-of-control blowout ignition, is preferred.
Hydro-blasting cutting is a technique that uses cutting sand (abrasive particles) mixed with a high-velocity stream of flowing liquid to form a jet of liquid-solid two-phase medium to remove material to effect cutting. The liquid medium is mixed with the abrasive material in the sand mixing device to form cutting fluid, and the cutting fluid is pressurized to form high hydraulic fluid. The water-solid two-phase medium in the high-pressure liquid is mixed in the infusion tube in a turbulent way, and then the ultra-high-speed jet flow is formed to have static pressure destructive effect after the water-solid two-phase medium is throttled by the nozzle at the end part of the infusion tube, so that the high-frequency erosion and grinding of the abrasive particles to the materials are completed.
The existing cutting device nozzle is connected to the body after the nozzle is installed in the pressure cap, and the pressure cap and the body are continuously eroded by the multi-phase fluid sprayed in the oil gas well and the abrasive reflected when the cutting fluid cuts the well mouth, so that the problem that the nozzle falls off along with the pressure cap to damage and lose efficacy easily occurs, and the reliability and the service life of the cutting equipment are reduced.
Disclosure of Invention
In order to solve the problems and the defects existing in the prior art, the application provides a built-in hydraulic sand blasting cutting nozzle, which not only can improve the reliability and the service life of hydraulic sand blasting cutting equipment, but also can improve the wellhead cutting operation efficiency.
In order to achieve the above object, the technical scheme of the present application is as follows:
the built-in hydraulic sand blasting cutting nozzle comprises a body and a nozzle, wherein the nozzle is arranged in a nozzle hole of the body, a liquid spraying hole on the end face of the body is communicated with the nozzle, a liquid inlet on the tail of the body is connected with a liquid conveying pipeline, the liquid conveying pipeline is communicated with the nozzle, the nozzle hole is a conical hole, the peripheral surface of the nozzle is a conical surface matched with the conical hole, and the aperture of the conical hole gradually decreases along the fluid direction; at least two nozzles are arranged on the body in a linear arrangement.
Preferably, the body is provided with a nozzle fixing mechanism, the nozzle fixing mechanism is positioned at the tail part of the nozzle and comprises a pressing block, the pressing block is arranged in a stepped groove at the tail part of the body and is fixedly connected with the body through a connecting screw, and a pressing block liquid hole communicated with the nozzle and the infusion pipeline is formed in the pressing block.
Preferably, the nozzle comprises a conical flow passage and a linear flow passage which are sequentially arranged along the fluid direction, and the inner diameter of an inlet at the upper end of the conical flow passage is larger than the inner diameter of an outlet at the lower end of the conical flow passage.
Preferably, the end face of the body is overlaid with a wear-resistant and erosion-resistant material.
Preferably, the infusion pipeline is fixed on the power mechanism and used for driving the whole nozzle to do reciprocating linear motion.
Preferably, the power mechanism comprises a transmission nut and a transmission screw, the infusion pipeline is fixed on the transmission nut, the transmission nut is sleeved on the transmission screw, and the transmission screw is fixed on the transmission seat and one end of the transmission screw is connected with the driving motor.
The beneficial effects of this application:
(1) The nozzle is installed in the body from the connecting end of the body and the infusion pipeline, the installation direction is consistent with the direction of fluid in the nozzle, the outer circumferential surface of the nozzle is in conical surface fit with the nozzle hole of the body, and the aperture of the nozzle hole is gradually reduced along the direction of fluid. Therefore, when the nozzle is used, the nozzle can be firmly clamped in the conical hole of the body under the action of fluid impact, and the nozzle cannot fall off from the body under the action of fluid impact.
(2) In the present application, at least two nozzles are arranged on the end face of the body, and the nozzles are arranged in a straight line on the end face of the body. The plurality of the nozzle structures which are arranged in a straight line form a plurality of cutting heads in the cutting direction, the nozzle is operated once, and the plurality of the cutting heads continuously cut at the same position, so that the object can be cut off once without the need of repeatedly and reciprocally operating the nozzle to move, the cutting efficiency is improved, and the rescue time is saved.
(3) According to the device, the nozzle is fixed on the screw rod transmission mechanism, the screw rod transmission mechanism drives the nozzle to do reciprocating linear motion, cutting of objects is achieved, and the motion of the whole nozzle is more stable.
(4) In the present application, the flow channel inside the nozzle is a mixed structure of a straight flow channel and a conical flow channel, and the straight flow channel is positioned in front of the conical flow channel and is of an elongated structure. The fluid cutting device has the advantages that the flow velocity of fluid can be improved through the tapered structure flow channel with the gradually-changed inner diameter, so that the cutting force of the fluid is increased, and finally, turbulence is carried out on the fluid through the slender straight-line flow channel, so that the ejected fluid is ensured to be in a straight line shape, the impact force of the fluid on an object is further ensured, and the object can be smoothly cut off.
Drawings
The foregoing and the following detailed description of the present application will become more apparent when read in conjunction with the following drawings in which:
FIG. 1 is a schematic view of the internal structure of a nozzle according to the present application;
FIG. 2 is a schematic view of a nozzle arrangement of the present application;
FIG. 3 is a schematic view of another arrangement of nozzles of the present application;
fig. 4 is a schematic view of the nozzle of the present application in a fixed installation.
In the accompanying drawings:
1. a body; 2. a nozzle; 3. a nozzle hole; 4. briquetting; 5. an infusion tube; 6. a connecting screw; 7. briquetting a liquid hole; 8. a conical flow passage; 9. a straight flow passage; 10. a drive nut; 11. a connecting screw; 12. a transmission seat; 13. the motor is driven.
Detailed Description
In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions for achieving the objects of the present application will be further described through several specific embodiments, and it should be noted that the technical solutions claimed in the present application include, but are not limited to, the following embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
At present, the existing cutting device nozzle is connected to the body after the nozzle is installed and pressed, the nozzle and the pressing cap are installed on the end face of the body from the outside, the whole nozzle structure is located on the outer side of the body, and the installation direction is opposite to the movement direction of fluid. When multiphase fluid sprayed out of an oil gas well and cutting fluid cut a wellhead, the reflected abrasive continuously erodes the pressure cap and the body, so that the problem that a nozzle falls off along with the pressure cap to be damaged and fails easily occurs, and the reliability and the service life of cutting equipment are reduced.
Based on this, this application has proposed a built-in hydraulic sand blasting cutting nozzle, inlays the inside at the body with the nozzle adoption toper structure to the installation direction is unanimous with the flow direction of the fluid in the nozzle, therefore the multiphase fluid of blowout in the oil gas well is on the nozzle, also can not wash the nozzle off, has improved cutting equipment's reliability and life.
In this embodiment, first, according to the direction of fluid movement in the nozzle, the end face of the body 1 is the part from which fluid flows out, and the tail is the part into which fluid enters.
The embodiment discloses a built-in hydraulic sand blasting cutting nozzle, referring to the accompanying drawings 1-4 of the specification, the nozzle comprises a body 1 and a nozzle 2, the body 1 is of a cylindrical structure, a nozzle hole 3 for installing the nozzle 2 is arranged in the body 1 along the axial direction, the nozzle hole 3 penetrates through the end face of the body 1, a liquid spraying hole is formed in the end face of the body 1, the nozzle 2 is arranged in the nozzle hole 3, the liquid spraying hole in the end face of the body 1 is communicated with the nozzle 2, the tail part of the body 1 is provided with a liquid inlet, the liquid inlet is connected with a liquid conveying pipeline 5, and the liquid conveying pipeline is communicated with the nozzle 2 in the body 1; further, the nozzle hole 3 is a conical hole, the aperture of the conical hole gradually decreases along the fluid direction, and the outer circumferential surface of the nozzle 2 is a conical surface matched with the conical hole; at least two nozzles 2 are arranged on the body 1 in a straight line, and the end surface of the body 1 is overlaid with wear-resistant and erosion-resistant materials.
In this embodiment, before cutting, the nozzle 2 is first installed into the body from the liquid inlet at the tail of the body 1 and fixed, then the assembly formed by combining the nozzle 2 and the body 1 is connected with the infusion pipeline 5, the infusion pipeline 5 is installed on the power device, the power device drives the infusion pipeline 5 to move, and then drives the nozzle connected with the infusion pipeline to move linearly along the cutting direction, after fluid is introduced into the infusion pipeline 5, the fluid is ejected from the liquid spraying opening of the body in a linear manner through the nozzle 2, the fluid acts on the object at a high speed and accompanies the linear movement of the cutting direction, and finally the object is cut off.
Since the nozzle 2 is installed from the connection end (i.e., the body tail) of the body 1 and the infusion tube 5 into the body, the installation direction is identical to the direction of the fluid in the nozzle, and the outer circumferential surface of the nozzle 2 is in conical surface fit with the nozzle hole 3 of the body 1, the aperture of the nozzle hole 3 gradually decreases along the direction of the fluid. Therefore, when the cutting device is used, the nozzle 2 can be firmly clamped in the conical hole of the body 1 under the action of fluid impact, the nozzle 2 cannot fall off from the body 1 under the action of fluid impact, and the reliability of the cutting device is improved. And because the conical surface of the nozzle 2 and the conical surface of the nozzle hole 3 are matched, the two can also realize the self-sealing effect under the impact action of fluid.
Further, since at least two or more nozzles 2 are arranged at the end face of the body 1, the nozzles 2 are arranged in a straight line at the end face of the body 1. The plurality of the nozzle structures which are arranged in a straight line form a plurality of cutting heads in the cutting direction, the nozzle is operated once, and the plurality of the cutting heads continuously cut at the same position, so that the object can be cut off once without the need of repeatedly and reciprocally operating the nozzle to move, the cutting efficiency is improved, and the rescue time is saved.
In this embodiment, the nozzles 2 are arranged on the body 1 in a straight line, and the number of the nozzles 2 is at least two, and the number is shown in fig. 2 and the schematic diagram is shown in fig. 3. The nozzles 2 may be arranged in a straight line on the body 1, either in a horizontal or vertical arrangement, as far as whether they are arranged in a horizontal or vertical arrangement is concerned with the actual cutting requirements. And the alignment is at least one row or column, as to how much is, also related to the actual cutting requirements.
In this embodiment, the number of nozzle holes 3 in the body 1 matches the number of nozzles 2, and the numbers are identical.
In the embodiment, the end surface of the body 1 is overlaid with the wear-resistant and erosion-resistant material, so that the erosion of the end surface by the reflected abrasive material when the cutting fluid cuts the wellhead can be resisted, and the reliability and the service life of the cutting equipment are also improved.
Example 2
The embodiment discloses built-in hydraulic sand blasting cutting nozzle, on the basis of embodiment 1, be provided with nozzle fixed establishment on body 1, nozzle fixed establishment is located the afterbody of nozzle 2, including briquetting 4, briquetting 4 sets up in the ladder groove of body 1 afterbody to through connecting screw 6 and body 1 fixed connection, thereby with nozzle 2 pressure in nozzle hole 3, be provided with on the briquetting 4 with nozzle 2 and the briquetting liquid hole 7 of infusion pipeline 5 intercommunication.
In this embodiment, referring to fig. 1 of the specification, the tail of the body is provided with a stepped groove, which is in a two-step structure, along the fluid movement direction, the stepped groove at the liquid inlet of the tail of the body is a first stepped groove, the front of the first stepped groove is a second stepped groove, the caliber of the first stepped groove is larger than that of the second stepped groove, the bottom of the stepped groove is provided with a hole, the hole is communicated with a nozzle hole, the pressing block 4 is arranged in the second stepped groove and abuts against the bottom of the stepped groove, and the pressing block liquid hole on the pressing block 4 is aligned and communicated with the hole at the bottom of the groove, so that the flow of fluid in the nozzle is realized. The infusion pipeline 5 is fixedly connected with the first stepped groove at the tail part of the body 1 in a threaded connection mode.
In the present embodiment, the number of the briquette liquid holes 7 provided in the briquette 4 is identical to the number of the nozzles 2.
Before cutting, the nozzle 2 is firstly arranged in the body 1 from a liquid inlet at the tail part of the body 1, then the pressing block 4 is arranged in a stepped groove of the body 1, and the pressing block 4 is fixed on the body 1 by using a connecting screw, so that the nozzle 2 is pressed on the body 1, the fixation of the nozzle 2 is realized, and the movement of the nozzle along the axial direction is limited. After the body 1, the nozzle 2 and the pressing block 4 are combined into a component, the infusion pipeline 5 is connected to the tail of the body 1, the whole nozzle is assembled, and the assembled nozzle is finally installed on the driving mechanism.
Example 3
The present embodiment discloses a built-in hydraulic sand blasting cutting nozzle, on the basis of the above embodiment 1 or embodiment 2, the nozzle 2 includes a tapered flow channel 8 and a linear flow channel 9 sequentially disposed along the fluid direction, and an inner diameter of an upper end inlet of the tapered flow channel 8 is larger than an inner diameter of a lower end outlet.
In this embodiment, the aperture of the briquette liquid hole 7 provided in the briquette 4 is matched with the inner diameter of the outlet of the tapered flow passage 8 of the nozzle 2.
Further, the infusion pipeline 5 is fixed on a power mechanism and is used for driving the whole nozzle to do reciprocating linear motion.
More specifically, the power mechanism comprises a transmission nut 10 and a transmission screw 11, the infusion pipeline 5 is fixed on the transmission nut 10, the transmission nut 10 is sleeved on the transmission screw 11, the transmission screw 11 is fixed on a transmission seat 12, and one end of the transmission screw 11 is connected with a driving motor 13.
In the present embodiment, the drive motor 13 may be a power source such as a servo motor or a gear motor.
The foregoing description is only a preferred embodiment of the present application, and is not intended to limit the present application in any way, and any simple modification, equivalent variation, etc. of the above embodiment according to the technical matters of the present application fall within the scope of the present application.
Claims (6)
1. The utility model provides an interior built-in hydraulic sand blasting cutting nozzle, includes body (1) and nozzle (2), nozzle (2) set up in nozzle hole (3) of body (1), the hydrojet mouth of body (1) terminal surface communicates with nozzle (2), and the inlet and the infusion pipeline (5) of body (1) afterbody are connected, and infusion pipeline communicates with nozzle (2), characterized in that, nozzle hole (3) are the bell mouth, and the outer peripheral face of nozzle (2) is the conical surface with bell mouth matched with, and the aperture of bell mouth reduces gradually along the fluidic direction; at least two nozzles (2) are arranged on the body (1) in a straight line.
2. The built-in hydraulic sand blasting cutting nozzle according to claim 1, wherein the body (1) is provided with a nozzle fixing mechanism, the nozzle fixing mechanism is positioned at the tail of the nozzle (2) and comprises a pressing block (4), the pressing block (4) is arranged in a stepped groove at the tail of the body (1) and is fixedly connected with the body (1) through a connecting screw (6), and the pressing block (4) is provided with a pressing block liquid hole (7) communicated with the nozzle (2) and the infusion pipeline (5).
3. A built-in hydraulic blasting cutting nozzle according to claim 1, wherein the nozzle (2) comprises a conical flow passage (8) and a linear flow passage (9) arranged in sequence in the fluid direction, the inner diameter of the upper inlet of the conical flow passage (8) being larger than the inner diameter of the lower outlet.
4. A built-in hydraulic blasting cutting nozzle according to claim 1, characterized in that the end face of the body (1) is surfacing with a wear-resistant and erosion-resistant material.
5. A built-in hydraulic blasting cutting nozzle according to claim 1, wherein the fluid delivery conduit (5) is secured to a power mechanism for driving the entire nozzle in a reciprocating linear motion.
6. A built-in hydraulic blasting cutting nozzle according to claim 5, wherein the power mechanism comprises a drive nut (10) and a drive screw (11), the infusion tube (5) is fixed on the drive nut (10), the drive nut (10) is sleeved on the drive screw (11), the drive screw (11) is fixed on a drive seat (12) and one end is connected with a driving motor (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321854585.4U CN220504979U (en) | 2023-07-14 | 2023-07-14 | Built-in hydraulic sand blasting cutting nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321854585.4U CN220504979U (en) | 2023-07-14 | 2023-07-14 | Built-in hydraulic sand blasting cutting nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220504979U true CN220504979U (en) | 2024-02-20 |
Family
ID=89871251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321854585.4U Active CN220504979U (en) | 2023-07-14 | 2023-07-14 | Built-in hydraulic sand blasting cutting nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220504979U (en) |
-
2023
- 2023-07-14 CN CN202321854585.4U patent/CN220504979U/en active Active
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