CN114790877A - Be applied to pressure build-up prevention device of production tree - Google Patents
Be applied to pressure build-up prevention device of production tree Download PDFInfo
- Publication number
- CN114790877A CN114790877A CN202210673864.4A CN202210673864A CN114790877A CN 114790877 A CN114790877 A CN 114790877A CN 202210673864 A CN202210673864 A CN 202210673864A CN 114790877 A CN114790877 A CN 114790877A
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- pipe
- pressure
- pressure relief
- support ring
- support
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- 230000002265 prevention Effects 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 title abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 42
- 238000004140 cleaning Methods 0.000 claims description 37
- 238000007789 sealing Methods 0.000 claims description 21
- 241000191291 Abies alba Species 0.000 claims description 18
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 33
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000002337 anti-port Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/02—Scrapers specially adapted therefor
- E21B37/04—Scrapers specially adapted therefor operated by fluid pressure, e.g. free-piston scrapers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0021—Safety devices, e.g. for preventing small objects from falling into the borehole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/35—Arrangements for separating materials produced by the well specially adapted for separating solids
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/38—Arrangements for separating materials produced by the well in the well
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention relates to a pressure-relief device for an oil production tree, which comprises a supporting pipe and a pressure relief pipe, wherein the pressure relief pipe is communicated with one side of the periphery of the supporting pipe, the other side of the periphery of the supporting pipe is communicated with a pressure gauge, a flow-guiding through groove is formed in the communication part of the peripheral side wall of the supporting pipe and the pressure gauge, transmission wheel frames are rotatably connected to two sides of the flow-guiding through groove on the inner wall of the supporting pipe, a rotary scraper is arranged between the two transmission wheel frames, a liquid-guiding cover pipe is covered in the middle of the periphery of the pressure relief pipe, a liquid-discharging pipe is communicated with one side of the liquid-guiding cover pipe, an adjusting bolt is arranged at the end part of the pressure relief pipe in a threaded manner, the pressure relief groove is formed in the middle part of the pressure relief pipe in a penetrating manner, the end part of the adjusting bolt extending into the pressure relief pipe is arranged and rotatably connected with a second slide block, impurities can be taken away by flowing oil after the rotary scraper scrapes the impurities, the second slide block is pushed by the adjusting bolt, and the pressure range of the suppressed pressure is adjusted.
Description
Technical Field
The invention relates to the field of oilfield mechanical equipment, in particular to a pressure blocking prevention device applied to an oil production tree.
Background
When the production valve is turned off due to the damage of oil stealing molecules or the misoperation of an oil extraction worker, the motor of the oil pumping unit is still running, and the underground oil well pump continuously produces liquid, so that the pressure on the wellhead device and the pressure on the oil extraction tree are gradually increased, namely, the wellhead device and the oil extraction tree are subjected to a pressure building phenomenon, and when the pressure exceeds the pressure limit which can be borne by a polish rod sealer on the wellhead device, the internal high-pressure mixed liquid is sprayed out.
The patent document with publication number CN104775784A discloses a choke-proof device for wellhead device and christmas tree of oil field, which is designed with a series of channels on the original valve device, when the valves on the wellhead device and christmas tree are closed by artificial damage or error operation, the pressure rises due to the continuous liquid production of the oil well pump under the well, thus opening the series of channels of the invention, and leading out the high-pressure liquid from the device.
Current equipment often lacks self-cleaning device, often receive impurity in the oil to block up in the use, cause the unexpected interrupt of work or the malfunction of equipment, make the whole process of oil recovery receive the influence, in the course of the work, current equipment can not adjust the pressure scope that bears according to the pressure demand of different pipelines, make application scope narrow, need set up specially to make, consume a large amount of manpower and materials, and current equipment often need dismantle the clearance after using once immediately, work is long consuming time, work efficiency is low, and the loss is huge, lack and exempt from dismouting clearance setting, it is inconvenient to use.
Disclosure of Invention
The invention aims to provide a choke-preventing pressure device applied to a Christmas tree aiming at the problems and the defects, and the overall working efficiency is improved.
The technical problem solved by the invention is as follows:
(1) the existing equipment is often lack of a self-cleaning device, and is often blocked by impurities in petroleum in the using process, so that the work of the equipment is accidentally interrupted or fails, and the whole oil extraction process is influenced;
(2) in the working process of the existing equipment, the existing equipment cannot adjust the borne pressure range according to the pressure requirements of different pipelines, so that the application range is narrow;
(3) the existing equipment is often required to be detached and cleaned immediately after being used once, the work consumption is long, the work efficiency is low, the loss is huge, the dismounting-free cleaning setting is lacked, and the use is inconvenient.
The purpose of the invention can be realized by the following technical scheme: the utility model provides a be applied to anti-suppress pressure equipment and put of production tree, including stay tube and pressure release pipe, pressure release pipe through connection is in periphery one side of stay tube, the periphery opposite side through connection of stay tube has the pressure gauge, run through in the intercommunication department with pressure gauge and pressure release pipe on the periphery lateral wall of stay tube and seted up the water conservancy diversion and link up the groove, the both sides that lie in the water conservancy diversion and link up the groove on the inner wall of stay tube all rotate and are connected with the transmission wheel carrier, install rotatory scraper blade between two transmission wheel carriers, the periphery middle part cover of pressure release pipe is equipped with the drain pipe, one side through connection of drain pipe has the fluid-discharge tube, the adjusting bolt is worn to be equipped with by the tip screw thread of pressure release pipe, the middle part periphery that the pressure release pipe is located the drain pipe runs through and has seted up the pressure release groove, the adjusting bolt stretches into the tip installation in the pressure release pipe and rotates and is connected with the second slider.
As a further scheme of the invention, the middle part of one side of the second sliding block is fixedly connected with a pressure relief spring, the end part of the pressure relief spring is fixedly connected with a first sliding block, the first sliding block and the second sliding block are both in sliding connection with the inner side wall of the pressure relief pipe, and when the pressure relief spring is not pressed, the first sliding block is positioned at the inner side of one end of the pressure relief pipe close to the supporting pipe.
As a further scheme of the invention, a filter plate is embedded in the flow guide through groove, one side of the rotary scraper close to the inner wall of the support pipe is abutted against the inner wall of the support pipe, the rotary scraper is obliquely arranged, the inner side wall of the filter plate is flush with the inner wall of the support pipe, and the inner side wall of the filter plate is abutted against the side edge of the rotary scraper.
As a further scheme of the invention, the transmission wheel frame comprises a first support ring and a second support ring, the first support ring and the second support ring keep coaxial, and a plurality of helical blades which are uniformly distributed at equal angles are arranged between the first support ring and the second support ring.
As a further scheme of the invention, the inner side wall of the supporting tube is respectively and rotatably connected with the first supporting ring and the second supporting ring, two ends of the helical blade are respectively and fixedly connected with the inner rings of the first supporting ring and the second supporting ring, the inner rings of the first supporting ring and the second supporting ring are kept flush with the inner side wall of the supporting tube, and a gap is kept between one side of the helical blade close to the inner wall of the supporting tube and the supporting tube.
As a further scheme of the invention, a plurality of pressure relief grooves are arranged and uniformly distributed in an annular array, a plurality of support frames uniformly distributed at equal angles are arranged on the periphery of the pressure relief pipe, a plurality of spring rods uniformly distributed at equal intervals are arranged in the middle of the inner side of each support frame, and the telescopic ends of the spring rods are fixedly connected with pressure relief plugs.
As a further scheme of the invention, the pressure relief plug is in a circular truncated cone-shaped structure, and the pressure relief plug is in interference fit with a notch of the pressure relief groove close to the periphery.
As a further scheme of the invention, the side surface of one end of the pressure relief pipe close to the adjusting bolt is in through connection with a cleaning pipe, the middle part of the cleaning pipe penetrates through the side surface of the liquid guide cover pipe and is in sealing connection with the liquid guide cover pipe, and the upper end of the cleaning pipe is provided with a sealing cover.
As a further scheme of the invention, two ends of the liquid guide cover pipe are connected with the pressure relief pipe through sealing rings, the liquid guide cover pipe is fixedly connected with the sealing rings through a plurality of bolts, the sealing rings are in sealing sleeve joint with the pressure relief pipe, and the periphery of the end part of the liquid discharge pipe is fixedly connected with a connecting flange.
The invention has the beneficial effects that:
(1) the support tube ensures that the petroleum extracted when the Christmas tree works passes through the support tube at normal flow and pressure to flow to each oil collecting point, the pressure gauge communicated with the support tube is used for detecting the flowing petroleum in real time, thereby observing the pressure change of the flowing petroleum in real time, the filter sheet is used for blocking impurities in the flowing petroleum to prevent the impurities from entering the flow guide through groove to block the pressure gauge and the pressure relief tube, the rotating scraper blade is driven by the transmission wheel frame to scrape and clean the pipe orifice of the flow guide through groove and the inner side wall of the support tube, thereby preventing the impurities in the flowing petroleum in the support tube from attaching to the inner side wall of the support tube, preventing the impurities from blocking the flow guide through groove, preventing the detection of the pressure gauge and the pressure relief of the pressure relief tube from influencing, and when the rotating scraper blade scrapes the impurities, the plane where the rotary scraper is located and the tangent plane where the contact surface of the rotary scraper is located form an obtuse included angle, so that after impurities are scraped by the rotary scraper, the impurities can be taken away by flowing oil, and the impurities attached to the rotary scraper can also be taken away by the flowing oil so as to clean the inner wall of the supporting tube and the pipe opening of the flow guide through groove, and avoid the impurities in the flowing oil from being attached and deposited;
(2) along with the pressure of the flowing oil, the pressure relief spring is contracted into different lengths, so that different numbers of pressure relief grooves discharge and relieve the pressure of the oil, the pressure relief groove is sealed by supporting the pressure relief plug through the spring rod, the petroleum in the liquid guide cover pipe is prevented from flowing back into the pressure relief pipe, the increase of the opening number of the pressure relief groove is ensured to be in direct proportion to the pressure increase of the petroleum, so that the pressure relief flow for preventing the pressure build-up is adapted to the pressure to be kept, the abnormal phenomena of shaking, vibration and the like of the device caused by too fast pressure relief are avoided, the service life of the whole device is prolonged, when the pressure range of the pressure build-up needs to be adjusted, the second sliding block is pushed by the adjusting bolt, thereby the second slide block compresses the pressure relief spring to increase the elasticity of the pressure relief spring, thereby improving the pressure range of the pressure to be suppressed, or reversely rotating the adjusting bolt, thereby reducing the lower limit of the pressure range of the pressure to be suppressed;
(3) when needs are cleared up pressure release groove and pressure release pipe, open sealed lid, pass through third flange through connection with clean pipe and external water pipe, thereby introduce the cleaning solution in the pressure release pipe, to the second slider, the pressure release spring, first slider, and pressure release pipe inside wall wash, wash each pressure release groove simultaneously, and prevent through first slider during the clearance that the cleaning solution from getting into in the supporting tube through the pressure release pipe, the cleaning solution washes through each pressure release groove and further fills in leading in the liquid cover to the inside wall of leading liquid cover pipe and fluid-discharge tube, and to the pressure release stopper, spring beam and support frame wash, thereby accomplish and wash each part of pressure release pipe and leading in the liquid cover pipe, and the cleaning process need not to pull down each part from the oil-production tree, high durability and convenient use, can improve holistic work efficiency by a wide margin.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a front view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the transmission wheel frame of the present invention;
FIG. 3 is a side view of the internal structure of the pressure relief tube of the present invention;
FIG. 4 is a cross-sectional view of the pressure relief tube of the present invention;
FIG. 5 is a schematic view of the overall structure of the fluid-conducting shield tube according to the present invention;
in the figure: 1. supporting a pipe; 2. a support flange; 3. a liquid discharge pipe; 4. a liquid guiding cover pipe; 5. a pressure gauge; 6. a first flange; 7. a flow guide through groove; 8. a transmission wheel carrier; 9. a second flange; 10. a pressure relief pipe; 11. a rotating scraper; 12. adjusting the bolt; 13. a pressure relief groove; 14. a first support ring; 15. a helical blade; 16. a support frame; 17. a spring lever; 18. a pressure relief plug; 19. a first slider; 20. a pressure relief spring; 21. a second slider; 22. cleaning the tube; 23. a sealing cover; 24. a third flange; 25. a connecting flange; 26. a seal ring; 27. a filter disc; 28. a rotating wheel; 29. a second support ring.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Please refer to fig. 1-5: a pressure-relief device applied to a Christmas tree comprises a supporting tube 1 and a pressure-relief tube 10, wherein the pressure-relief tube 10 is connected to one side of the periphery of the supporting tube 1 in a penetrating manner, the other side of the periphery of the supporting tube 1 is connected with a pressure gauge 5 in a penetrating manner, supporting flanges 2 used for being connected with the Christmas tree are installed at two ends of the supporting tube 1, a flow-guiding through groove 7 is formed in the peripheral side wall of the supporting tube 1 in a penetrating manner at the position communicated with the pressure gauge 5 and the pressure-relief tube 10, transmission wheel frames 8 are installed at two sides of the flow-guiding through groove 7 inside the supporting tube 1, the transmission wheel frames 8 are rotatably connected with the inner wall of the supporting tube 1, a rotary scraper 11 is installed between the two transmission wheel frames 8, a liquid-guiding cover tube 4 is covered in the middle of the periphery of the pressure-relief tube 10, a liquid-discharging tube 3 is connected to one side of the liquid-guiding cover tube 4 in a penetrating manner, an adjusting bolt 12 is arranged at the end of the pressure-relief tube 10 in a penetrating manner, and a rotating wheel 28 is fixedly connected to the end of the adjusting bolt 12, and the adjusting bolt 12 is in threaded sleeve joint with the end part of the pressure relief pipe 10, the middle part periphery of the pressure relief pipe 10 in the liquid guide cover pipe 4 is penetrated and provided with a pressure relief groove 13, the pressure relief pipe 10 is only communicated with the liquid guide cover pipe 4 through the pressure relief groove 13, the end part of the adjusting bolt 12 extending into the pressure relief pipe 10 is installed and is rotationally connected with a second slide block 21, one side middle part of the second slide block 21 is fixedly connected with a pressure relief spring 20, the end part of the pressure relief spring 20 is fixedly connected with a first slide block 19, the first slide block 19 and the second slide block 21 are both in sliding connection with the inner side wall of the pressure relief pipe 10, when the pressure relief spring 20 is not pressed, the first slide block 19 is located at the middle part of the inner side of one end, close to the support pipe 1, when the pressure relief spring 20 is not pressed, the first slide block 19 moves to the adjusting bolt 12 along with the increase of the pressed pressure.
When in use, the support tube 1 ensures that the petroleum extracted during the operation of the Christmas tree passes through the support tube 1 at normal flow and pressure to flow to each oil collecting point, the pressure gauge 5 communicated with the support tube 1 is used for detecting the flowing petroleum in real time, so as to observe the pressure change of the flowing petroleum in real time, the transmission wheel frame 8 rotates in the support tube 1 under the push of the flowing petroleum, and the rotating scraper 11 is pushed to rotate in the support tube 1, so as to clean the inner wall of the support tube 1 and the pipe orifice of the flow guide through groove 7, avoid the attachment and deposition of impurities in the flowing petroleum, when the pressure building phenomenon of a petroleum production pipeline occurs, the pressure of the flowing petroleum is increased, the first slide block 19 is pushed to move towards the pressure relief tube 10, the pressure relief spring 20 is continuously compressed, the pressure relief groove 13 starts to work along with the movement of the first slide block 19, the high-pressure flowing petroleum in the pressure relief tube 10 is conveyed to the fluid guide cover tube 4, leading liquid cover pipe 4 outwards discharges high-pressure oil through fluid-discharge tube 3, thereby keep and reduce the pressure of the interior flowing oil of pipeline, eliminate the suppress pressure, when the pressure range of the pressure that needs adjustment suppress, promote second slider 21 through adjusting the bolt 12, thereby make second slider 21 compression pressure release spring 20, increase the elasticity of pressure release spring 20, thereby improve the pressure range of suppressing pressure, or reverse rotation adjusting bolt 12, thereby reduce the pressure range lower limit of suppressing pressure, when pressure release spring 20 appears permanent deformation along with continuous use, also can promote pressure release spring 20 through adjusting bolt 12 and remove the operating time of thereby extension pressure release spring 20 to stay tube 1, temporary use.
The rotary scrapers 11 are arranged in a plurality of equal-angle uniform distribution, one side of the rotary scrapers 11 close to the inner wall of the supporting tube 1 is abutted against the inner wall of the supporting tube 1, the rotary scrapers 11 are arranged in an inclined shape, when in use, the rotary scrapers 11 scrape and clean the pipe orifice of the flow guide through groove 7 and the inner side wall of the supporting tube 1 under the driving of the transmission wheel carrier 8, thereby preventing impurities in the flowing oil in the supporting tube 1 from being attached to the inner side wall of the supporting tube 1, avoiding the impurities from blocking the flow guide through groove 7, preventing the detection of the pressure gauge 5 and the pressure relief of the pressure relief tube 10 from being influenced, when the rotating scraper 11 scrapes off impurities, the plane of the rotating scraper 11 forms an obtuse included angle with the tangent plane of the contact surface of the rotating scraper 11, after the rotating scraper 11 scrapes off the impurities, the impurities can be taken away by the flowing oil, and the impurities attached to the rotating scraper 11 can also be taken away by the flowing oil.
The transmission wheel carrier 8 comprises a first support ring 14 and a second support ring 29, the first support ring 14 and the second support ring 29 are coaxial, the first support ring 14 and the second support ring 29 are embedded on the inner side wall of the support tube 1, the inner side wall of the support tube 1 is respectively rotatably connected with the first support ring 14 and the second support ring 29, a helical blade 15 is arranged between the first support ring 14 and the second support ring 29, the helical blade 15 is provided with a plurality of helical blades 15 which are uniformly arranged at equal angles, the helical blades 15 are uniformly distributed in a helical shape, two ends of the helical blade 15 are respectively fixedly connected with the inner rings of the first support ring 14 and the second support ring 29, the inner rings of the first support ring 14 and the second support ring 29 are kept flush with the inner side wall of the support tube 1, so that flowing oil is not blocked by the first support ring 14 and the second support ring 29, and a gap is kept between one side of the helical blade 15 close to the inner wall of the support tube 1 and the support tube 1, therefore, the helical blade 15 is not rubbed by the supporting tube 1 when rotating, the resistance of the flowing oil in the process of pushing the helical blade 15 to rotate the transmission wheel carrier 8 is reduced, and the stagnation of the rotary scraper 11 is avoided.
The pressure gauge 5 is communicated with the supporting tube 1 through a first flange 6, the pressure relief tube 10 is communicated with the supporting tube 1 through a second flange 9, a filter sheet 27 is embedded in the flow guide through groove 7, the inner side wall of the filter sheet 27 is flush with the inner wall of the supporting tube 1, and the inner side wall of the filter 27 is abutted against the side edge of the rotary scraper 11, so that the pressure gauge 5 can be conveniently and quickly replaced through the first flange 6 when in use, the pressure relief pipe 10 is rapidly replaced through the second flange 9, impurities in flowing oil are blocked by the filter plate 27, the impurities are prevented from entering the flow guide through groove 7 to block the pressure gauge 5 and the pressure relief pipe 10, through the rotating scraping of the rotating scraper 11, the impurities which are stopped on the inner side wall of the filter sheet 27 are pushed to rotate in the supporting tube 1, and is carried away by the flowing oil, thus ensuring normal and permanent use of the pressure relief tube 10 and the pressure gauge 5.
The pressure relief grooves 13 are provided with a plurality of pressure relief grooves 13 which are uniformly distributed in an annular array, the periphery of the pressure relief pipe 10 is provided with a plurality of supporting frames 16 which are uniformly distributed at equal angles, the middle part of the inner side of each supporting frame 16 is provided with a plurality of spring rods 17 which are uniformly distributed at equal intervals, the telescopic ends of the spring rods 17 vertically point to the pressure relief grooves 13, the telescopic ends of the spring rods 17 are fixedly connected with pressure relief plugs 18, the pressure relief plugs 18 are in a circular truncated cone-shaped structure, the pressure relief plugs 18 are in interference fit with notches of the pressure relief grooves 13 close to the periphery, the spring rods 17 correspond to the pressure relief grooves 13 one by one, when in use, along with the pressure of flowing oil, the pressure relief springs 20 are contracted into different lengths, so that the pressure relief grooves 13 with different numbers discharge and relieve the oil, the pressure relief grooves 13 are blocked by supporting the pressure relief plugs 18 through the spring rods 17, and the oil in the liquid guide cover pipe 4 is prevented from flowing back into the pressure relief pipe 10, the increase of the quantity of opening of pressure release tank 13 and the pressure increase of oil are in direct proportion to each other, so that the pressure release flow of preventing suppressing pressure is adapted to the pressure that needs to be kept, abnormal phenomena such as shaking and vibration caused by too fast pressure release are avoided, the device is protected, and the service life of the whole device is prolonged.
The side surface of one end of the pressure relief pipe 10 close to the adjusting bolt 12 is connected with a cleaning pipe 22 in a penetrating way, the middle part of the cleaning pipe 22 penetrates through the side surface of the liquid guide cover pipe 4 and is connected with the liquid guide cover pipe 4 in a sealing way, the upper end of the cleaning pipe 22 is provided with a sealing cover 23, the cleaning pipe 22 is connected with the sealing cover 23 through a third flange 24, when the pressure relief pipe 10 and the cleaning groove 13 are required to be cleaned in use, the sealing cover 23 is opened, the cleaning pipe 22 is connected with an external water pipe through the third flange 24 in a penetrating way, so that cleaning liquid is introduced into the pressure relief pipe 10, the inner side walls of the second sliding block 21, the pressure relief spring 20, the first sliding block 19 and the pressure relief pipe 10 are cleaned, meanwhile, each pressure relief groove 13 is flushed, the cleaning liquid is prevented from entering the support pipe 1 through the pressure relief pipe 10 during cleaning, the cleaning liquid flushes each pressure relief groove 13 and is further filled into the liquid guide cover pipe 4 to flush the inner side walls of the liquid guide cover pipe 4 and the liquid discharge pipe 3, and wash pressure relief plug 18, spring beam 17 and support frame 16 to accomplish and wash each part in pressure relief pipe 10 and the drain cover pipe 4, and the cleaning process need not to pull down each part from the production tree, and convenient to use can improve holistic work efficiency by a wide margin.
The both ends of drain cover pipe 4 are passed through sealing ring 26 and are linked to each other with pressure release pipe 10, drain cover pipe 4 passes through a plurality of bolt fixed connection with sealing ring 26, sealing ring 26 keeps sealed the cup jointing with pressure release pipe 10, the tip periphery fixedly connected with flange 25 of fluid-discharge tube 3, and fluid-discharge tube 3 is connected with the defeated oil pipe that is used for carrying the pressure release oil to oil storage department and the transfer line that carries the cleaning solution to cleaning solution storage department respectively through flange 25, thereby keep encapsulated situation when carrying oil and cleaning solution.
In the using process of the invention, the support tube 1 ensures that the petroleum extracted when the Christmas tree works passes through the support tube 1 to flow to each oil collecting point at normal flow and pressure, the pressure gauge 5 communicated with the support tube 1 is used for carrying out instant detection on the flowing petroleum, so as to observe the pressure change of the flowing petroleum in real time, the filter sheet 27 is used for blocking impurities in the flowing petroleum, the impurities are prevented from entering the flow guide through groove 7 to block the pressure gauge 5 and the pressure relief tube 10, the rotating scraper 11 is driven by the transmission wheel carrier 8 to scrape and clean the pipe opening of the flow guide through groove 7 and the inner side wall of the support tube 1, so that the impurities in the flowing petroleum in the support tube 1 are prevented from being attached to the inner side wall of the support tube 1, the flow guide through groove 7 is prevented from being blocked by the impurities, and the detection of the pressure relief tube 10 is prevented from being influenced, when the rotating scraper 11 scrapes off impurities, the plane of the rotating scraper 11 and the tangent plane of the contact surface of the rotating scraper 11 form an obtuse included angle when the rotating scraper 11 scrapes off the impurities, so that the impurities can be taken away by flowing oil after the rotating scraper 11 scrapes off the impurities, and the impurities attached to the rotating scraper 11 can also be taken away by the flowing oil, so that the inner wall of the support tube 1 and the pipe orifice of the flow guide through groove 7 are cleaned, and the impurities in the flowing oil are prevented from being attached and deposited;
inner rings of the first support ring 14 and the second support ring 29 are flush with the inner side wall of the support tube 1, so that flowing oil is not blocked by the first support ring 14 and the second support ring 29, and one side of the spiral blade 15 close to the inner wall of the support tube 1 keeps a gap with the support tube 1, so that the spiral blade 15 is not rubbed by the support tube 1 during rotation, the resistance of the flowing oil in the process of pushing the spiral blade 15 to rotate the transmission wheel frame 8 is reduced, and the stagnation of the rotary scraper 11 is avoided;
along with the pressure of flowing oil, the pressure relief spring 20 is contracted into different lengths, so that different numbers of pressure relief grooves 13 discharge and relieve the oil, the pressure relief grooves 13 are plugged by supporting pressure relief plugs 18 through spring rods 17, the oil in the liquid guide cover pipe 4 is prevented from flowing back into the pressure relief pipe 10, the increase of the number of the opened pressure relief grooves 13 is ensured to be in direct proportion to the pressure increase of the oil, the pressure relief flow for preventing pressure build-up is adapted to the pressure to be kept, abnormal phenomena of shaking, vibration and the like of the device caused by over-quick pressure relief are avoided, the device is protected, and the service life of the whole device is prolonged;
when the pressure relief groove 13 and the pressure relief pipe 10 need to be cleaned, the sealing cover 23 is opened, the cleaning pipe 22 is connected with an external water pipe through the third flange 24, so that the cleaning liquid is introduced into the pressure relief pipe 10, the second slide block 21, the pressure relief spring 20, the first slide block 19 and the inner side wall of the pressure relief pipe 10 are cleaned, simultaneously, each pressure relief groove 13 is flushed, and the first slide block 19 prevents cleaning solution from entering the supporting tube 1 through the pressure relief tube 10 during cleaning, the cleaning solution flushes each pressure relief groove 13 and is further filled into the liquid guide cover tube 4 to flush the inner side walls of the liquid guide cover tube 4 and the liquid discharge tube 3, and flushes the pressure relief plug 18, the spring rod 17 and the supporting frame 16, therefore, all parts in the pressure relief pipe 10 and the liquid guide cover pipe 4 are cleaned, all parts do not need to be detached from the Christmas tree in the cleaning process, the use is convenient, and the integral working efficiency can be greatly improved;
when the pressure range that presses out needs to be adjusted, promote second slider 21 through gim peg 12, thereby make second slider 21 compression pressure release spring 20, increase pressure release spring 20's elasticity, thereby improve the pressure range that presses out, or the antiport gim peg 12, thereby reduce the pressure range lower limit that presses out, when pressure release spring 20 appears permanent deformation along with continuous use, thereby also can promote pressure release spring 20 through gim peg 12 and remove to stay tube 1 to extension pressure release spring 20's operating time, temporary use, fluid-discharge tube 3 is connected with the transfer line that is used for carrying the defeated oil pipe of pressure release oil and carries the cleaning solution to the cleaning solution storage department through flange 25 respectively, thereby keep encapsulated situation when carrying oil and cleaning solution.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.
Claims (9)
1. The pressure-building device comprises a supporting pipe (1) and a pressure relief pipe (10), wherein the pressure relief pipe (10) is connected to one side of the periphery of the supporting pipe (1) in a penetrating manner, the other side of the periphery of the supporting pipe (1) is connected with a pressure gauge (5) in a penetrating manner, and is characterized in that a flow guide through groove (7) is formed in the peripheral side wall of the supporting pipe (1) in a penetrating manner at the position communicated with the pressure gauge (5) and the pressure relief pipe (10), transmission wheel frames (8) are rotatably connected to two sides of the flow guide through groove (7) on the inner wall of the supporting pipe (1), a rotary scraper (11) is installed between the two transmission wheel frames (8), a liquid guide cover pipe (4) is arranged in the middle of the periphery of the pressure relief pipe (10), a liquid discharge pipe (3) is connected to one side of the liquid guide cover pipe (4) in a penetrating manner, and an adjusting bolt (12) is arranged on the end part of the pressure relief pipe (10) in a penetrating manner, the pressure relief pipe (10) is located the middle part periphery of leading in the liquid cover pipe (4) and has run through and seted up pressure relief groove (13), the end installation that adjusting bolt (12) stretched into in pressure relief pipe (10) is connected with second slider (21) in rotating.
2. The pressure holding-down prevention device applied to the Christmas tree according to claim 1, wherein a pressure release spring (20) is fixedly connected to the middle of one side of the second slider (21), a first slider (19) is fixedly connected to the end of the pressure release spring (20), the first slider (19) and the second slider (21) are both slidably connected to the inner side wall of the pressure release pipe (10), and when the pressure release spring (20) is not pressed, the first slider (19) is located on the inner side of one end, close to the support pipe (1), of the pressure release pipe (10).
3. The pressure blocking prevention device applied to the Christmas tree of claim 1, wherein a filter (27) is embedded in the flow guiding through groove (7), one side of the rotary scraper (11) close to the inner wall of the support tube (1) is abutted against the inner wall of the support tube (1), the rotary scraper (11) is arranged in an inclined manner, the inner side wall of the filter (27) is flush with the inner wall of the support tube (1), and the inner side wall of the filter (27) is abutted against the side edge of the rotary scraper (11).
4. The pressure build-up prevention device applied to a Christmas tree according to claim 1, wherein the transmission wheel carrier (8) comprises a first support ring (14) and a second support ring (29), the first support ring (14) and the second support ring (29) are kept coaxial, and a plurality of helical blades (15) are uniformly distributed at equal angles between the first support ring (14) and the second support ring (29).
5. The pressure-holding prevention device applied to the Christmas tree according to claim 4, wherein the inner side wall of the support tube (1) is rotatably connected with the first support ring (14) and the second support ring (29), the two ends of the helical blade (15) are fixedly connected with the inner rings of the first support ring (14) and the second support ring (29), the inner rings of the first support ring (14) and the second support ring (29) are flush with the inner side wall of the support tube (1), and the side of the helical blade (15) close to the inner wall of the support tube (1) keeps a gap with the support tube (1).
6. The pressure building device applied to the Christmas tree according to claim 1, wherein the pressure relief grooves (13) are provided with a plurality of pressure relief grooves (13) which are uniformly distributed in an annular array, the periphery of the pressure relief pipe (10) is provided with a plurality of support frames (16) which are uniformly distributed in equal angles, a plurality of spring rods (17) which are uniformly distributed in equal intervals are arranged in the middle of the inner side of each support frame (16), and the telescopic ends of the spring rods (17) are fixedly connected with pressure relief plugs (18).
7. The pressure build-up prevention device applied to the Christmas tree of claim 6, wherein the pressure relief plug (18) is of a truncated cone structure, and the pressure relief plug (18) is in interference fit with a notch of the pressure relief groove (13) close to the periphery.
8. The pressure build-up prevention device applied to the Christmas tree according to claim 1, wherein a cleaning pipe (22) is connected to a side surface of one end of the pressure relief pipe (10) close to the adjusting bolt (12) in a penetrating manner, a middle part of the cleaning pipe (22) penetrates through a side surface of the liquid guide cover pipe (4) and is connected with the liquid guide cover pipe (4) in a sealing manner, and a sealing cover (23) is installed at an upper end of the cleaning pipe (22).
9. The pressure build-up prevention device applied to the Christmas tree according to claim 1, wherein two ends of the liquid guiding cover pipe (4) are connected with the pressure relief pipe (10) through a sealing ring (26), the liquid guiding cover pipe (4) is fixedly connected with the sealing ring (26) through a plurality of bolts, the sealing ring (26) is in sealing sleeve connection with the pressure relief pipe (10), and the periphery of the end of the liquid discharge pipe (3) is fixedly connected with a connecting flange (25).
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| CN202210673864.4A CN114790877A (en) | 2022-06-15 | 2022-06-15 | Be applied to pressure build-up prevention device of production tree |
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| CN202210673864.4A CN114790877A (en) | 2022-06-15 | 2022-06-15 | Be applied to pressure build-up prevention device of production tree |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118532162A (en) * | 2024-07-22 | 2024-08-23 | 东营熙成石油机械制造有限公司 | Automatic hydrogen sulfide detects charge device |
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