CN204620258U - Drainage underground gas production nozzle - Google Patents
Drainage underground gas production nozzle Download PDFInfo
- Publication number
- CN204620258U CN204620258U CN201520171358.0U CN201520171358U CN204620258U CN 204620258 U CN204620258 U CN 204620258U CN 201520171358 U CN201520171358 U CN 201520171358U CN 204620258 U CN204620258 U CN 204620258U
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- Prior art keywords
- nozzle
- inner core
- gas
- hole
- nozzle inner
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Abstract
The utility model discloses drainage underground gas production nozzle, comprise nozzle inner core and nozzle housing, the end of nozzle housing is provided with spurt hole, in nozzle inner core one end, internal conical surface is set, the inwall of internal conical surface and nozzle housing forms air inlet cavity, the nozzle inner core other end has just to the through hole of spurt hole, through-hole wall is provided with multiple swirl vane, the inwall of through hole and nozzle inner core forms eddy flow cavity, in the middle part of nozzle inner core, be provided with the convective tank of annular, and two pores are symmetricly set on the two ends of convective tank.When starting under the promotion of the gas-fluid two-phase mixture in gas well at borehole pressure to rise, gas-liquid mixture enters into after in air inlet cavity and carries out volume compression through internal conical surface to it, and then improve the flowing velocity of gas-liquid mixture, when gas-liquid mixture enters eddy flow cavity, fluid and swirl vane contact with each other, by swirl vane, fluid driven is rotated, finally utilize the centrifugal force rotating generation to be thrown away from spurt hole by gas-liquid mixture.
Description
Technical field
The utility model relates to gas production field, down-hole, specifically refers to drainage underground gas production nozzle.
Background technology
All ponding can be there is in shaft bottom in various degree at home in most gas well, for the gas well that there is end water or limit water, in recovery process, liquid-gas ratio will increase gradually, if adjustment liquid-gas ratio or shaft bottom hydrops get rid of well head not in time not in time, this can cause the normal production of gas well, even that gas well is drowned and cause stopping production, therefore the jacking capacity of correct Prediction gas well under liquid content in various degree selects the water drainage-gas recovery technology of suitable gas well to have important practical significance according to the actual conditions of gas well.
Liquid when gas well shaft bottom has just started to occur a small amount of hydrops in pit shaft can be utilized the climbing power of self to take pit shaft out of by gas, gas well can also normally be produced, at this moment the most stream flow velocity of gas well air-flow is called that liquid critical flow velocity taken by gas well, and corresponding gas flow is called that liquid critical flow taken by gas well; When in pit shaft, the actual flow velocity of gas is less than critical flow velocity, liquid in well just can not utilize the climbing power of self to take well head out of by air-flow.And in prior art, usual employing emple hole, liquid obtains larger kinetic energy after pressurization, after nozzle, liquid ejects with very large speed, under surface tension of liquid, viscosity and air drag interact, liquid flows by dripping, smoothly, wave flow changes gradually to spray flow, finally conveniently realizes the two-phase laminated flow of gas-liquid; But because the current of discharging in emple hole have surface tension, therefore become in the process of spray flow at liquid rotating, need constantly could to meet liquid to down-hole pressurization there is when ejecting very high speed to occur to rub with surrounding air and be separated atomization, then the air pressure of down-hole is higher, the safety reliability faced during gas production is lower, very easily causes security incident.
Utility model content
The purpose of this utility model is to provide drainage underground gas production nozzle, facilitates gas-liquid independently to rise fast and discharges outside well, reach the object improving gas production safety reliability simultaneously.
The purpose of this utility model is achieved through the following technical solutions:
Drainage underground gas production nozzle, the nozzle housing comprising nozzle inner core and be set in outside nozzle inner core, the end of nozzle housing is provided with spurt hole, in described nozzle inner core one end, internal conical surface is set, and the inwall of described internal conical surface and nozzle housing forms air inlet cavity, the nozzle inner core other end has just to the through hole of spurt hole, through-hole wall is provided with multiple swirl vane, and the inwall of through hole and nozzle inner core forms eddy flow cavity; Also comprise the pore that two run through nozzle housing and nozzle inner core, the convective tank of annular is provided with in the middle part of nozzle inner core, two pores are symmetricly set on the two ends of convective tank, and the outlet side internal diameter of described pore successively decreases on the direction being radially directed towards axle center along nozzle inner core.Nozzle is fixed on the outlet side of gas well, when starting under the promotion of the gas-fluid two-phase mixture in gas well at borehole pressure to rise, gas-liquid mixture enters into after in air inlet cavity and carries out volume compression through internal conical surface to it, and then improve the flowing velocity of gas-liquid mixture, when gas-liquid mixture enters eddy flow cavity, fluid and swirl vane contact with each other, and are rotated by fluid driven by swirl vane, finally utilize the centrifugal force rotating generation to be thrown away from spurt hole by gas-liquid mixture;
When the flow of gas-liquid mixture is very little, when centrifugal force is greater than surface tension of liquid, be larger-size large drop by what throw away in spurt hole, now liquid directly splits into drop, when flow increases, liquid is become a fairly large number of thread jet by rotary splitter, the fluidised form extremely unstable of liquid, liquid leaves rotating vane end and after spraying a segment distance by spurt hole, directly and air generation rubbing action and be separated into droplet, form mitoschisis drop, when flow continues to increase, brin is interconnected to liquid film, along with liquid film is outwards extended to thinner liquid film, and occur to rub with very high speed and ambient air and be separated atomization, drop is split into by film-form, make to spray vaporific gas-liquid mixture at spurt hole, under the normal operating pressure used, the gas-liquid two-phase in gas well is extracted simultaneously, to facilitate the gas-liquid separation operation in later stage,
In the middle part of nozzle inner core, wherein have the convective tank of annular, air is injected to pore, the air poured into compresses at the end of pore, namely the jet velocity of air is increased further, and pore convective tank is annularly symmetrical arranged, and then have the air stream of two pore ejections mutually to liquidate, and a period of time to be carried out in convective tank, mix with air under the cylindrical environment that the gas-liquid mixture of flowing in eddy flow cavity is formed at convective tank, the gas-liquid mixture that swiftly flowing air and relatively low speed are moved or liquid film produces vibrations mutually, friction, liquid crushing is made to be tiny liquid, and then rise rapidly through the CENTRIFUGAL ACCELERATING of swirl vane, facilitate gas-liquid independently to rise fast and discharge outside well, reach the object improving gas production safety reliability simultaneously.
Further, the end of described nozzle inner core is provided with annular groove, and described eddy flow cavity is communicated with annular groove by circular hole.Annular space is formed between annular groove and the inwall of nozzle housing, gas-liquid mixture be about to by entering in annular space through circular hole during swirl vane, reduce gas-liquid mixture to a certain extent in the fluid layer movement velocity of eddy flow cavity near its inner wall section, gas-liquid mixture is avoided directly to impact swirl vane, affect the rotation of fluid after preventing swirl vane Local Damaged, improve the atomizing effect of gas-liquid mixture in spurt hole.
Further, also comprise the diffusion hole being opened in nozzle housing end, described diffusion hole is communicated with the outlet side of spurt hole.The misty liquid droplets range of scatter penetrated by spurt hole is comparatively large, and be unfavorable for the collection of aboveground operation to misty liquid droplets, the misty liquid droplets that the diffusion hole be communicated with spurt hole can spray radiation carries out gathering to be assembled, and makes it directly to enter in the container cavity in aboveground device.
The utility model compared with prior art, has following advantage and beneficial effect:
1, the utility model is when flow continues to increase, brin is interconnected to liquid film, along with liquid film is outwards extended to thinner liquid film, and occur to rub with very high speed and ambient air and be separated atomization, drop is split into by film-form, make to spray vaporific gas-liquid mixture at spurt hole, the gas-liquid two-phase in gas well is extracted, to facilitate the gas-liquid separation operation in later stage under the normal operating pressure used simultaneously;
2, annular space is formed between annular groove of the present utility model and the inwall of nozzle housing, gas-liquid mixture be about to by entering in annular space through circular hole during swirl vane, reduce gas-liquid mixture to a certain extent in the fluid layer movement velocity of eddy flow cavity near its inner wall section, gas-liquid mixture is avoided directly to impact swirl vane, affect the rotation of fluid after preventing swirl vane Local Damaged, improve the atomizing effect of gas-liquid mixture in spurt hole.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the utility model embodiment, forms a application's part, does not form the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of nozzle housing;
Fig. 3 is the structural representation of nozzle inner core;
Mark and corresponding parts title in accompanying drawing:
1-nozzle housing, 2-air inlet cavity, 3-internal conical surface, 4-nozzle inner core, 5-eddy flow cavity, 6-annular groove, 7-swirl vane, 8-spurt hole, 9-diffusion hole, 10-convective tank, 11-pore.
Detailed description of the invention
Clearly understand for making the purpose of this utility model, technical scheme and advantage, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only for explaining the utility model, and conduct is not to restriction of the present utility model.
Embodiment 1
As shown in Fig. 1 ~ 3, the present embodiment comprises nozzle inner core 4 and is set in the nozzle housing 1 outside nozzle inner core 4, the end of nozzle housing 1 is provided with spurt hole 8, in described nozzle inner core 4 one end, internal conical surface 3 is set, and described internal conical surface 3 forms air inlet cavity 2 with the inwall of nozzle housing 1, nozzle inner core 4 other end has just to the through hole of spurt hole 8, through-hole wall is provided with multiple swirl vane 7, and the inwall of through hole and nozzle inner core 4 forms eddy flow cavity 5; Also comprise the pore 11 that two run through nozzle housing 1 and nozzle inner core 4, the convective tank 10 of annular is provided with in the middle part of nozzle inner core 4, two pores 11 are symmetricly set on the two ends of convective tank 10, and the outlet side internal diameter of described pore 11 successively decreases on the direction being radially directed towards axle center along nozzle inner core 4.
Nozzle is fixed on the outlet side of gas well, when starting under the promotion of the gas-fluid two-phase mixture in gas well at borehole pressure to rise, gas-liquid mixture enters into after in air inlet cavity 2 and carries out volume compression through internal conical surface 3 to it, and then improve the flowing velocity of gas-liquid mixture, when gas-liquid mixture enters eddy flow cavity 5, fluid and swirl vane 7 contact with each other, and are rotated by fluid driven by swirl vane 7, finally utilize the centrifugal force rotating generation to be thrown away from spurt hole 8 by gas-liquid mixture, when the flow of gas-liquid mixture is very little, when centrifugal force is greater than surface tension of liquid, be larger-size large drop by what throw away in spurt hole 8, now liquid directly splits into drop, when flow increases, liquid is become a fairly large number of thread jet by rotary splitter, the fluidised form extremely unstable of liquid, liquid leaves rotating vane end and after spraying a segment distance by spurt hole 8, directly and air generation rubbing action and be separated into droplet, form mitoschisis drop, when flow continues to increase, brin is interconnected to liquid film, along with liquid film is outwards extended to thinner liquid film, and occur to rub with very high speed and ambient air and be separated atomization, drop is split into by film-form, make to spray vaporific gas-liquid mixture at spurt hole 8, under the normal operating pressure used, the gas-liquid two-phase in gas well is extracted simultaneously, to facilitate the gas-liquid separation operation in later stage, in the middle part of nozzle inner core 4, wherein have the convective tank 10 of annular, air is injected to pore 11, the air poured into compresses at the end of pore 11, namely the jet velocity of air is increased further, and pore 11 convective tank 10 is annularly symmetrical arranged, and then the air stream having two pores 11 to spray liquidates mutually, and a period of time to be carried out in convective tank 10, mix with air under the cylindrical environment that the gas-liquid mixture of flowing in eddy flow cavity 5 is formed at convective tank 10, the gas-liquid mixture that swiftly flowing air and relatively low speed are moved or liquid film produces vibrations mutually, friction, liquid crushing is made to be tiny liquid, and then rise rapidly through the CENTRIFUGAL ACCELERATING of swirl vane 7, facilitate gas-liquid independently to rise fast and discharge outside well, reach the object improving gas production safety reliability simultaneously.
Wherein, the end of described nozzle inner core 4 is provided with annular groove 6, and described eddy flow cavity 5 is communicated with annular groove 6 by circular hole.Annular space is formed between the inwall of annular groove 6 and nozzle housing 1, gas-liquid mixture be about to by entering in annular space through circular hole during swirl vane 7, reduce gas-liquid mixture to a certain extent in the fluid layer movement velocity of eddy flow cavity 5 near its inner wall section, gas-liquid mixture is avoided directly to impact swirl vane 7, affect the rotation of fluid after preventing swirl vane 7 Local Damaged, improve the atomizing effect of gas-liquid mixture in spurt hole 8.
Also comprise the diffusion hole 9 being opened in nozzle housing 1 end, described diffusion hole 9 is communicated with the outlet side of spurt hole 8.The misty liquid droplets range of scatter penetrated by spurt hole 8 is comparatively large, and be unfavorable for the collection of aboveground operation to misty liquid droplets, the misty liquid droplets that the diffusion hole 9 be communicated with spurt hole 8 can spray radiation carries out gathering to be assembled, and makes it directly to enter in the container cavity in aboveground device.
Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only detailed description of the invention of the present utility model; and be not used in restriction protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. drainage underground gas production nozzle, comprise nozzle inner core (4) and be set in nozzle inner core (4) nozzle housing outward (1), the end of nozzle housing (1) is provided with spurt hole (8), it is characterized in that: in described nozzle inner core (4) one end, internal conical surface (3) is set, and described internal conical surface (3) forms air inlet cavity (2) with the inwall of nozzle housing (1), nozzle inner core (4) other end has just to the through hole of spurt hole (8), through-hole wall is provided with multiple swirl vane (7), and the inwall of through hole and nozzle inner core (4) forms eddy flow cavity (5), also comprise the pore (11) that two run through nozzle housing (1) and nozzle inner core (4), the convective tank (10) of annular is provided with at nozzle inner core (4) middle part, two pores (11) are symmetricly set on the two ends of convective tank (10), and the outlet side internal diameter of described pore (11) successively decreases on the direction being radially directed towards axle center along nozzle inner core (4).
2. drainage underground gas production nozzle according to claim 1, is characterized in that: the end of described nozzle inner core (4) is provided with annular groove (6), and described eddy flow cavity (5) is communicated with annular groove (6) by circular hole.
3. drainage underground gas production nozzle according to claim 1 and 2, is characterized in that: also comprise the diffusion hole (9) being opened in nozzle housing (1) end, described diffusion hole (9) is communicated with the outlet side of spurt hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520171358.0U CN204620258U (en) | 2015-03-26 | 2015-03-26 | Drainage underground gas production nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520171358.0U CN204620258U (en) | 2015-03-26 | 2015-03-26 | Drainage underground gas production nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204620258U true CN204620258U (en) | 2015-09-09 |
Family
ID=54039322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520171358.0U Expired - Fee Related CN204620258U (en) | 2015-03-26 | 2015-03-26 | Drainage underground gas production nozzle |
Country Status (1)
| Country | Link |
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| CN (1) | CN204620258U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759365A (en) * | 2015-03-26 | 2015-07-08 | 成都来宝石油设备有限公司 | Underground drainage rapid gas production pipe |
| CN110359889A (en) * | 2018-01-24 | 2019-10-22 | 西南石油大学 | A kind of dilute blending device of new aqueous lifting thickened oil |
| CN115672582A (en) * | 2022-10-18 | 2023-02-03 | 安徽理工大学 | Novel inner rotational flow atomizing nozzle |
-
2015
- 2015-03-26 CN CN201520171358.0U patent/CN204620258U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759365A (en) * | 2015-03-26 | 2015-07-08 | 成都来宝石油设备有限公司 | Underground drainage rapid gas production pipe |
| CN104759365B (en) * | 2015-03-26 | 2018-04-13 | 成都来宝石油设备有限公司 | A kind of quick air collecting pipe of drainage underground |
| CN110359889A (en) * | 2018-01-24 | 2019-10-22 | 西南石油大学 | A kind of dilute blending device of new aqueous lifting thickened oil |
| CN115672582A (en) * | 2022-10-18 | 2023-02-03 | 安徽理工大学 | Novel inner rotational flow atomizing nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20160326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |