CN107152269B - Independent external liquid level adjusting device and external liquid level adjusting oil-gas separator - Google Patents
Independent external liquid level adjusting device and external liquid level adjusting oil-gas separator Download PDFInfo
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- CN107152269B CN107152269B CN201710531601.9A CN201710531601A CN107152269B CN 107152269 B CN107152269 B CN 107152269B CN 201710531601 A CN201710531601 A CN 201710531601A CN 107152269 B CN107152269 B CN 107152269B
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- 239000007788 liquid Substances 0.000 title claims abstract description 106
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000000903 blocking effect Effects 0.000 claims description 26
- 230000001174 ascending effect Effects 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 4
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000003921 oil Substances 0.000 description 37
- 239000007789 gas Substances 0.000 description 31
- 238000009434 installation Methods 0.000 description 8
- 238000005457 optimization Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 238000010796 Steam-assisted gravity drainage Methods 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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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
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Float Valves (AREA)
Abstract
The invention relates to the technical field of liquid level adjustment, in particular to an independent external liquid level adjusting device and an oil-gas separator with external liquid level adjustment. The external liquid level adjusting device is an independent external liquid level adjusting device, so that the problem of connection dynamic sealing inside and outside a cavity of the separator is effectively avoided, the frequent shutdown condition caused by leakage is reduced, and the external liquid level adjusting device is particularly suitable for the high-temperature thick oil production working condition.
Description
Technical Field
The invention relates to the technical field of liquid level regulation, in particular to an independent external liquid level regulating device and an oil-gas separator with external liquid level regulation.
Background
In crude oil gathering and transportation, the oil-gas separator is widely applied to oil field metering stations/receiving and transferring warfare stations and united stations. The oil well produced liquid is first gas-liquid separated in the oil-gas separator, and the gas is measured or treated in the upper pipeline of the separator and transported outwards. The liquid is metered or treated from the lower pipeline of the separator and then is output.
The liquid level and the pressure in the oil-gas separator need to be controlled to maintain good separation effect. The pressure control aims at ensuring that a certain pressure is provided in the separator, which is beneficial to the liquid discharge of a lower pipeline, and the liquid level is not too high and can not overflow into a gas pipeline or submerge metering equipment in the separator to cause the damage of the metering equipment. The purpose of liquid level control is to ensure the minimum safe liquid level (liquid seal section) with a certain height away from a liquid output port, prevent gas from entering a liquid discharge pipeline, avoid the situation of inaccurate metering, or prevent the gas from entering the liquid discharge pipeline and causing equipment in the liquid pipeline to be damaged due to cavitation.
At present, a liquid level adjusting device of an oil-gas separator used in an oil field is a mechanical connecting rod type floater liquid level adjuster, and the liquid level adjusting device has the advantages of no need of additional energy, mechanical self-adjustment and the like, and is widely applied. The floating ball is arranged in the separator tank body, when the liquid level rises, the floating ball rises, and the valve core of the outlet valve rises under the action of the mechanical connecting rod, so that the opening degree of the valve is increased until the valve is completely opened; when the liquid level descends, the floating ball descends, and the opening degree of the valve is reduced under the action of the mechanical connecting rod until the valve is completely closed.
However, this method has significant disadvantages:
1. the floating ball is arranged in the tank body of the separator, the oil outlet valve is arranged outside the tank body, the floating ball controls the opening of the oil outlet valve through a mechanical link mechanism extending out of the separator, and the problem that the dynamic seal is easy to leak at the extending part of the link mechanism is certain. In steam-assisted thickened oil production, the temperature of produced liquid is high, the problem is obvious, particularly, in the SAGD production process, the highest temperature of the produced liquid can reach about 220 ℃, the pressure is 1.6Mpa, the sealing damage phenomenon of a mechanical connecting rod type float liquid level regulator of an oil-gas separator for metering is abnormal frequently, and field maintenance personnel urgently hope to change the situation.
The oil field is generally in a severe environment, and particularly in heavy oil production, corrosive gases such as hydrogen sulfide are generally accompanied, so that the corrosion of exposed mechanical parts is further aggravated, and the damage of a liquid level regulator is accelerated. Frequent maintenance results in significant maintenance costs and lost downtime.
The integral installation and maintenance need to be operated in a related way inside and outside the separator tank body, and the operation is very inconvenient.
Disclosure of Invention
The invention provides an independent external liquid level adjusting device and an external liquid level adjusting oil-gas separator, overcomes the defects of the prior art, and can effectively solve the problems that a mechanical link mechanism adopted by the liquid level adjusting device of the existing separator is easy to damage a connecting dynamic seal, and corrosive gas is corroded and installed and maintained inconveniently in thick oil production.
One of the technical schemes of the invention is realized by the following measures: an independent external liquid level adjusting device comprises an upper tank body, a lower tank body, a floating ball, an oil outlet valve body and a connecting rod; the lower end of the upper tank body and the upper end of the lower tank body are connected through a flange in a sealing manner to form a closed tank body, a gas pressure balance connecting pipe communicated with the inside of the tank body is arranged outside the upper end of the tank body, a guide connecting pipe communicated with the inside of the tank body is arranged outside the lower end of the tank body, a floating ball is arranged in the tank body, and the outer diameter of the floating ball is larger than the upper port of the guide connecting pipe; the oil outlet valve body comprises an upper connecting pipe, a lower connecting pipe, a left connecting pipe and a right connecting pipe, the lower end of the upper connecting pipe, the upper end of the lower connecting pipe, the right end of the left connecting pipe and the left end of the right connecting pipe are communicated together to form the oil outlet valve body in a four-way valve shape, the axis position of the left connecting pipe is lower than that of the right connecting pipe, a mounting plate vertical to the axis of the upper connecting pipe is fixedly mounted in the upper end of the upper connecting pipe, an upper mounting hole coaxial with the upper connecting pipe is formed in the mounting plate, a valve core assembly capable of closing or opening the right connecting pipe is mounted in a tubular cavity formed by the upper connecting pipe and the lower connecting pipe in a clearance fit mode, the valve core assembly comprises a valve ring and a valve plate, the lower end of the valve ring is fixed with the upper end face of the valve plate, a lower mounting hole coaxial with the upper connecting pipe is formed in the valve plate, the connecting rod is a rod with a thin lower end, the cross section outline of the connecting rod is larger than an orifice of the lower mounting hole, the lower end of the connecting rod passes through the lower mounting hole, a connecting rod limiting device capable of preventing the connecting rod from falling off from the lower end of the lower connecting rod from the lower mounting hole is fixedly mounted on the connecting rod, a connecting rod limiting device fixedly mounted on the connecting rod limiting device which is arranged between the connecting rod and a balance flange which is communicated with the upper connecting pipe and the lower end of the lower connecting pipe, and a balance flange which is arranged at the lower end of the upper connecting pipe and is arranged at the lower connecting pipe, and a balance pipe which is arranged at the lower end of the lower connecting pipe and a balance pipe which is arranged at the lower end of the lower connecting pipe which is arranged on the lower connecting pipe; the lower end of the guide connecting pipe and the upper end of the upper connecting pipe are fixedly installed together through a flange, the lower end of the floating ball is fixedly installed with a guide rod, the lower end of the guide rod penetrates through the upper installation hole to be fixedly installed with the thin portion of the upper end of the connecting rod together, the connecting rod below the installation plate is provided with a floating ball ascending limiting device, and the installation plate corresponding to the periphery of the floating ball ascending limiting device is provided with a liquid level balance hole.
The following is a further optimization or/and improvement of one of the above-mentioned technical solutions of the invention:
the floating ball ascending limiting device comprises a floating ball retaining piece and a first positioning nut, the floating ball retaining piece comprises a retaining piece ring and a retaining piece plate, the lower end of the retaining piece ring is fixedly installed on the upper end face of the retaining piece plate, at least one notch with an upward opening is formed in the upper end face of the retaining piece ring, a through hole is formed in the middle of the retaining piece plate, the retaining piece plate is sleeved on the upper portion of the connecting rod through the through hole, and the first positioning nut is installed on the connecting rod below the retaining piece plate.
The upper edge of the guide connecting pipe is higher than the lowest surface in the tank body, and the upper end surface of the guide connecting pipe is provided with at least one notch with an upward opening.
The floating ball is a thin-wall floating ball and comprises an upper hemisphere, a middle ring and a lower hemisphere, the lower edge of the upper hemisphere ring is hermetically fixed with the upper edge of the middle ring, and the lower edge of the middle ring is hermetically fixed with the upper edge of the lower hemisphere ring.
The cross section of the guide rod is rectangular, square or rhombic.
The connecting rod limiting device is a second positioning nut, and a second positioning nut for preventing the connecting rod from being separated upwards from the mounting hole is fixedly mounted on the connecting rod thin part below the valve plate.
And a sealing ring is fixedly arranged on the outer wall of the valve ring.
The second technical scheme of the invention is realized by the following measures: the oil-gas separator comprises the independent external liquid level adjusting device and a separator cylinder body, wherein a gas output pipeline communicated with the inside of the separator cylinder body is arranged on the upper portion of the separator cylinder body, a gas pressure balance connecting pipe is communicated with the gas output pipeline, and the lower portion of the separator cylinder body is communicated with a left connecting pipe through a liquid discharge pipeline.
The following is further optimization or/and improvement of the second technical scheme of the invention:
the outer part of the lower part of the tank body is provided with a liquid pressure balance connecting pipe communicated with the inner part of the tank body, the outer part of the separator cylinder body is provided with a separator safe liquid level leading-out connecting pipe communicated with the inner part of the separator cylinder body, the separator safe liquid level leading-out connecting pipe corresponds to the safe liquid level upper limit in the separator cylinder body, and the liquid pressure balance connecting pipe is communicated with the separator safe liquid level leading-out connecting pipe.
The external liquid level adjusting device is an independent external liquid level adjusting device, so that the problem of connection dynamic sealing inside and outside a cavity of the separator is effectively avoided, the frequent shutdown condition caused by leakage is reduced, and the external liquid level adjusting device is particularly suitable for the high-temperature thick oil production working condition.
Drawings
FIG. 1 is a schematic diagram of an external right view structure of the independent external liquid level adjusting device of the present invention.
FIG. 2 is a schematic sectional view of the independent external liquid level control device according to the present invention.
FIG. 3 is a schematic perspective view of the floating ball and the guide rod of the present invention.
Fig. 4 is a schematic perspective view of the oil outlet valve body according to the present invention.
Fig. 5 is a schematic sectional structure view of the valve core assembly of the present invention.
Fig. 6 is a front view structural schematic diagram of the connecting rod of the present invention.
Fig. 7 is a schematic perspective view of a mounting plate and a flange plate according to the present invention.
FIG. 8 is a schematic view of a first perspective structure of the floating ball retainer of the present invention.
FIG. 9 is a schematic diagram of a second perspective view of the floating ball retainer of the present invention.
FIG. 10 is a schematic structural diagram of an external liquid level adjusting oil-gas separator in the invention.
The codes in the figures are respectively: the device comprises an upper tank body 1, a lower tank body 2, a gas pressure balance connecting pipe 3, a guide connecting pipe 4, a floating ball 5, an upper connecting pipe 6, a lower connecting pipe 7, a left connecting pipe 8, a right connecting pipe 9, a mounting plate 10, an upper mounting hole 11, a valve ring 12, a valve plate 13, a lower mounting hole 14, a connecting rod 15, a balance pipe 16, a flange cover 17, a guide rod 18, a liquid level balance hole 19, a floating ball blocking piece 20, a first positioning nut 21, a blocking piece ring 22, a blocking piece plate 23, a through hole 24, a notch 25, an upper hemisphere 26, a middle ring 27, a lower hemisphere, a second positioning nut 29, a separator cylinder 30, a gas output pipeline 31, a liquid discharge pipeline 32, a liquid pressure balance connecting pipe 33, a separator safety liquid level discharge connecting pipe 34 and a sealing ring 35.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached fig. 2 in the specification, such as: the positional relationship of up, down, left, right, etc. is determined in accordance with the layout direction of fig. 2 in the specification.
The invention is further described below with reference to the following examples and figures:
in embodiment 1, as shown in fig. 1, 2, 3, 4, 5, 6, and 7, the independent external liquid level adjusting device includes an upper tank 1, a lower tank 2, a floating ball 5, an oil outlet valve body, and a connecting rod 15; the lower end of the upper tank body 1 and the upper end of the lower tank body 2 are connected through a flange in a sealing manner to form a closed tank body, a gas pressure balance connecting pipe 3 communicated with the interior of the tank body is arranged outside the upper end of the tank body, a guide connecting pipe 4 communicated with the interior of the tank body is arranged outside the lower end of the tank body, a floating ball 5 is arranged in the tank body, and the outer diameter of the floating ball 5 is larger than the upper port of the guide connecting pipe 4; the oil outlet valve body comprises an upper connecting pipe 6, a lower connecting pipe 7, a left connecting pipe 8 and a right connecting pipe 9, the lower end of the upper connecting pipe 6, the upper end of the lower connecting pipe 7, the right end of the left connecting pipe 8 and the left end of the right connecting pipe 9 are communicated together to form the oil outlet valve body in a four-way valve body, the axis position of the left connecting pipe 8 is lower than the axis position of the right connecting pipe 9, a mounting plate 10 vertical to the axis of the upper connecting pipe 6 is fixedly mounted in the upper end of the upper connecting pipe 6, an upper mounting hole 11 coaxial with the upper connecting pipe 6 is formed in the mounting plate 10, a valve core assembly capable of closing or opening the right connecting pipe 9 is mounted in a tubular cavity formed by the upper connecting pipe 6 and the lower connecting pipe 7, the valve core assembly is mounted in a clearance fit manner in the tubular cavity formed by the upper connecting pipe 6 and the lower connecting pipe 7 and comprises a valve ring 12 and a valve plate 13, the lower end of the valve ring 12 is fixed with the upper end surface of the valve plate 13, the valve plate 13 is provided with a lower mounting hole 14 which is coaxial with the upper connecting pipe 6, the connecting rod 15 is a rod body with a thin lower end, the cross section outline of the connecting rod 15 is larger than the orifice of the lower mounting hole 14, the thin part of the lower end of the connecting rod 15 passes through the lower mounting hole 14, a connecting rod limiting device for preventing the connecting rod 15 from falling off from the lower mounting hole 14 upwards is fixedly mounted on the thin part of the connecting rod 15 below the valve plate 13, a balance pipe 16 which is respectively communicated with the left connecting pipe 8 and the upper connecting pipe 6 is arranged between the left connecting pipe 8 and the upper connecting pipe 6, the position of the balance pipe 16 communicated with the upper connecting pipe 6 is higher than that of the right connecting pipe 9, and the lower end of the lower connecting pipe 7 is fixedly provided with a flange cover 17 capable of sealing the lower end of the lower connecting pipe 7; the lower end of the guide connecting pipe 4 and the upper end of the upper connecting pipe 6 are fixedly installed together through a flange, the lower end of the floating ball 5 is fixedly installed with a guide rod 18, the lower end of the guide rod 18 penetrates through the upper installation hole 11 to be fixedly installed with the details of the upper end of the connecting rod 15, the connecting rod 15 below the installation plate 10 is provided with a floating ball ascending limiting device, and the installation plate 10 corresponding to the periphery of the floating ball ascending limiting device is provided with a liquid level balance hole 19.
The tank body is in a two-half type, so that the floating ball 5 is convenient to install; the gas pressure balance connecting pipe 3 is connected with a gas output port of the separator cylinder 30; the outer diameter of the floating ball 5 is larger than the upper port of the guide connecting pipe 4, so that the descending distance of the floating ball 5 can be effectively limited when the floating ball 5 descends; the lower end of the lower connecting pipe 7 is fixedly provided with a flange cover 17, and when a valve core assembly, a connecting rod 15 and other components are installed or sundries deposited in the oil outlet valve body need to be cleaned, the flange cover 17 is opened; the left connecting pipe 8 is communicated with an oil outlet of the separator cylinder 30, the right connecting pipe 9 is communicated with a crude oil gathering and transportation pipeline, and the balance pipe 16 can effectively balance liquid levels in the separator cylinder 30 and the tank body; when the floating ball 5 drives the guide rod 18 and the connecting rod 15 to move up and down, the guide rod 18 can move up and down in the upper mounting hole 11, and because the lower end of the connecting rod 15 is a thin part and is mounted in the lower mounting hole 14, and is positioned by the connecting rod limiting device, the thin part of the lower end of the connecting rod 15 and the valve core assembly are fixedly mounted together in a positioning mode and cannot move relatively. The axis position that 8 was taken over to the left side is less than the axis position that the right side was taken over 9, can guarantee that 8 and right side were taken over 9 and misplace from top to bottom and the right side is taken over 9 and is located the top that the left side was taken over 8, the effect that sets up like this: 1. the transverse impact force of the oil entering the oil outlet valve body from the left connecting pipe 8 can be effectively reduced; 2. when the oil entering the oil outlet valve body from the left connecting pipe 8 cannot directly enter the right connecting pipe 9 to be discharged firstly, the oil can be radially and primarily settled after being impacted, impurities are settled in the lower connecting pipe 7, and the oil subjected to primary settlement is discharged after the liquid level rises to the right connecting pipe 9 under accumulation.
When the liquid level in the separator cylinder 30 is lower than the set safe liquid level and the buoyancy of the floating ball 5 is not enough to overcome the resultant force F, the floating ball 5 descends to push the guide rod 18 and the connecting rod 15 to descend to push the valve core assembly to descend to close the oil outlet of the right connecting pipe 9 in the oil outlet valve body, and the liquid level in the separator cylinder 30 does not descend any more; when the liquid level in the separator is higher than the set lowest safe liquid level, the buoyancy of the floating ball 5 is gradually increased, and when the buoyancy of the floating ball 5 is enough to overcome the resultant force F, the floating ball 5 goes upward to drive the guide rod 18 and the connecting rod 15 to go upward, further drive the valve core assembly to go upward, gradually open the oil outlet of the right connecting pipe 9 in the oil valve body and start to discharge liquid; the dynamic equilibrium of the lowest safe liquid level in the separator bowl 30 is achieved by the above process.
Wherein F = F 1 +f 2 +f 3 +f 4 +f 5 +f 6 ，f 1 = gravity of the ball float 5, f 2 = valve core assemblyGravity, f 3 = gravity of the connecting rod 15, f 4 = gravity connecting the floating ball 5, the valve core assembly, the connecting rod 15 and the rest parts of the floating ball ascending limiting device, f 5 = valve element assembly start friction in outlet valve body, f 6 = pressure that actual liquid level difference acts on the spool assembly.
The invention can independently encapsulate the floating ball 5, the oil outlet valve body, the valve core assembly, the guide rod 18 and the connecting rod 15, protect to the maximum extent, and effectively avoid the corrosion of corrosive gas to the device in the thick oil production.
In embodiment 7, a sealing ring 35 is fixedly mounted on the outer wall of the valve ring 12. When the valve core assembly moves upwards or downwards, the sealing ring 35 can effectively perform dynamic sealing.
The technical characteristics form an embodiment of the invention, which has strong adaptability and implementation effect, and unnecessary technical characteristics can be increased or decreased according to actual needs to meet the requirements of different situations.
Claims (7)
1. An independent external liquid level adjusting device is characterized by comprising an upper tank body, a lower tank body, a floating ball, an oil outlet valve body and a connecting rod; the lower end of the upper tank body and the upper end of the lower tank body are connected through a flange in a sealing manner to form a closed tank body, a gas pressure balance connecting pipe communicated with the interior of the tank body is arranged outside the upper end of the tank body, a guide connecting pipe communicated with the interior of the tank body is arranged outside the lower end of the tank body, a floating ball is arranged in the tank body, and the outer diameter of the floating ball is larger than the upper port of the guide connecting pipe; the oil outlet valve body comprises an upper connecting pipe, a lower connecting pipe, a left connecting pipe and a right connecting pipe, the lower end of the upper connecting pipe, the upper end of the lower connecting pipe, the right end of the left connecting pipe and the left end of the right connecting pipe are communicated together to form the oil outlet valve body in a four-way valve shape, the axis position of the left connecting pipe is lower than that of the right connecting pipe, a mounting plate vertical to the axis of the upper connecting pipe is fixedly mounted in the upper end of the upper connecting pipe, an upper mounting hole coaxial with the upper connecting pipe is formed in the mounting plate, a valve core assembly capable of closing or opening the right connecting pipe is mounted in a tubular cavity formed by the upper connecting pipe and the lower connecting pipe in a clearance fit mode, the valve core assembly comprises a valve ring and a valve plate, the lower end of the valve ring is fixed with the upper end face of the valve plate, a lower mounting hole coaxial with the upper connecting pipe is formed in the valve plate, the connecting rod is a rod with a thin lower end, the cross section outline of the connecting rod is larger than an orifice of the lower mounting hole, the lower end of the connecting rod passes through the lower mounting hole, a connecting rod limiting device capable of preventing the connecting rod from falling off from the lower end of the lower connecting rod from the lower mounting hole is fixedly mounted on the connecting rod, a connecting rod limiting device fixedly mounted on the connecting rod limiting device which is arranged between the connecting rod and a balance flange which is communicated with the upper connecting pipe and the lower end of the lower connecting pipe, and a balance flange which is arranged at the lower end of the upper connecting pipe and is arranged at the lower connecting pipe, and a balance pipe which is arranged at the lower end of the lower connecting pipe and a balance pipe which is arranged at the lower end of the lower connecting pipe which is arranged on the lower connecting pipe; the lower end of the guide connecting pipe and the upper end of the upper connecting pipe are fixedly mounted together through a flange, a guide rod is fixedly mounted at the lower end of the floating ball, the lower end of the guide rod penetrates through an upper mounting hole and is fixedly mounted together with details of the upper end of the connecting rod, a floating ball ascending limiting device is mounted on the connecting rod below the mounting plate, a liquid level balancing hole is formed in the mounting plate corresponding to the periphery of the floating ball ascending limiting device, the floating ball ascending limiting device comprises a floating ball blocking piece and a first positioning nut, the floating ball blocking piece comprises a blocking piece ring and a blocking piece plate, the lower end of the blocking piece ring is fixedly mounted with the upper end face of the blocking piece plate, at least one notch with an upward opening is formed in the upper end face of the blocking piece ring, a through hole is formed in the middle of the blocking piece plate, the blocking piece plate is sleeved on the upper portion of the connecting rod through the through hole, and the first positioning nut is mounted on the connecting rod below the blocking piece.
2. The independent external liquid level regulating device as claimed in claim 1, wherein the upper edge of the guiding connection pipe is higher than the lowest surface in the tank body, and at least one notch with an upward opening is formed on the upper end surface of the guiding connection pipe.
3. An independent external liquid level regulator as defined in claim 1 or 2, wherein said floating ball is a thin-walled floating ball, said floating ball comprises an upper hemisphere, a middle ring and a lower hemisphere, the lower edge of said upper hemisphere ring is sealingly fastened to the upper edge of said middle ring, and the lower edge of said middle ring is sealingly fastened to the upper edge of said lower hemisphere ring.
4. The independent external liquid level regulating device as claimed in claim 1 or 2, wherein the cross section of the guide rod is rectangular, square or rhombic; or/and the connecting rod limiting device is a second positioning nut, and the second positioning nut for preventing the connecting rod from being separated upwards from the mounting hole is fixedly mounted on the connecting rod thin part below the valve plate; or/and a sealing ring is fixedly arranged on the outer wall of the valve ring.
5. The independent external liquid level regulating device as claimed in claim 3, wherein the cross section of the guide rod is rectangular, square or rhombic; or/and the connecting rod limiting device is a second positioning nut, and the second positioning nut for preventing the connecting rod from being separated upwards from the mounting hole is fixedly mounted on the connecting rod detail below the valve plate; or/and a sealing ring is fixedly arranged on the outer wall of the valve ring.
6. An oil-gas separator with external liquid level regulation by using the independent external liquid level regulation device as claimed in any one of the preceding claims, which is characterized by comprising the independent external liquid level regulation device and a separator cylinder, wherein the upper part of the separator cylinder is provided with a gas output pipeline communicated with the inside of the separator cylinder, a gas pressure balance connecting pipe is communicated with the gas output pipeline, and the lower part of the separator cylinder is communicated with a left connecting pipe through a liquid discharge pipeline.
7. The external liquid level regulation oil-gas separator as recited in claim 6, characterized in that a liquid pressure balance connection pipe communicated with the inside of the tank body is arranged outside the lower portion of the tank body, a separator safety liquid level leading-out connection pipe communicated with the inside of the separator cylinder body is arranged outside the separator cylinder body, the separator safety liquid level leading-out connection pipe corresponds to the upper limit of the safety liquid level in the separator cylinder body, and the liquid pressure balance connection pipe is communicated with the separator safety liquid level leading-out connection pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710531601.9A CN107152269B (en) | 2017-07-03 | 2017-07-03 | Independent external liquid level adjusting device and external liquid level adjusting oil-gas separator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710531601.9A CN107152269B (en) | 2017-07-03 | 2017-07-03 | Independent external liquid level adjusting device and external liquid level adjusting oil-gas separator |
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| CN107152269A CN107152269A (en) | 2017-09-12 |
| CN107152269B true CN107152269B (en) | 2023-03-21 |
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Denomination of invention: Independent external liquid level regulating device and oil gas separator with external liquid level regulation Granted publication date: 20230321 Pledgee: Karamay Petroleum Branch of Bank of China Ltd. Pledgor: XINJIANG XITAI PETROLEUM EQUIPMENT Co.,Ltd. Registration number: Y2024980027730 |
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