CN101603530B - Scroll gas-liquid multiphase mixing transmission pump - Google Patents
Scroll gas-liquid multiphase mixing transmission pump Download PDFInfo
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- CN101603530B CN101603530B CN2009100169413A CN200910016941A CN101603530B CN 101603530 B CN101603530 B CN 101603530B CN 2009100169413 A CN2009100169413 A CN 2009100169413A CN 200910016941 A CN200910016941 A CN 200910016941A CN 101603530 B CN101603530 B CN 101603530B
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- circle involute
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Abstract
The invention discloses a scroll gas-liquid multiphase mixing transmission pump composed of a movable scroll pan, a fixed scroll pan, a frame body, a crankshaft, and a small crank anti-rotation mechanism; the movable scroll pan and the fixed scroll pan with the same shaped wires relatively rotate 90 degrees, and are offset for certain distance, and then the movable scroll pan and the fixed scroll pan are inserted into each other to form a plurality of working cavities; under the driving of the crankshaft, the movable scroll pan realizes revolution and translation with the fixed scroll pan under the constraint of the anti-rotation mechanism of the small crank so as to form the working cavity volume with cyclic variation, and the absorption, compression and discharging of gas-liquid medium are realized. The movable scroll pan and the fixed scroll pan are both provided with a section of variable back lash scroll wrap composed of reducing base circle involute; during working, back lash exists, so that a pressure relief path exists in the discharging port direction from a compression cavity; in the pressurizing process, a small quantity of gas-liquid medium generates internal leakage via the path from the compression cavity to the discharging port so as to realize random unloading for liquid phase compression, which solves the problems that pressure surge and liquid impact are easy to appear during pressurizing mixing transmission gas-liquid medium when liquid holdup is higher.
Description
Technical field
The invention belongs to mechanical engineering technical field, particularly scroll gas-liquid multiphase mixing transmission pump.
Background technique
Along with oil, gas production are progressively expanded to desert and ocean by land; The length of the multiphase mixture of the crude oil of extraction, gas and water becomes the research focus gradually apart from the reliable delivery problem in the oil well; The oil-gas multi-phase mixed delivering that with the multiphase pump is core is the development trend of current oil gas conveying technology; Have advantages such as flow process, cost saving and the raising oil well recovery rate of simplification, therefore the research to the novel gas-liquid multiphase mixing transmission pump has great importance.
The kind of existing gas-liquid multiphase mixing transmission pump is more, and in oil-gas gathering and transportation system, using is screw axis streaming multiphase pump and double-screw type multiphase pump the most widely.Screw axis streaming multiphase pump utilizes heterogeneous fluid in the impeller of high speed rotating, to obtain kinetic energy, and the diffusion action through stator converts kinetic energy into the pressure ability again; This pump is mainly formed by sucking unit, compression unit, extrusion unit and the pump housing etc., has advantages such as simple in structure, easy to operate; But when gas content was big, its service behaviour institute was influenced bigger, and the pumping lift is less, thereby screw axis streaming multiphase mixing transmission pump is difficult to be adapted to the mixing supercharging of gas content when big and carries.The twin-screw multiphase pump is to rely on being meshing with each other between two screw rods; Form periodically variable working chamber volume; And then realize mixing defeated to the supercharging of gas-liquid polyphase flow body; Have compact structure and efficient advantages of higher, heterogeneous fluid, high-solidification point and full-bodied mixture that gas liquid ratio is changed greatly all have pressurized effect preferably, small flow and high-lift operating mode in being adapted to; But as the positive displacement multiphase pump; Owing to do not solve the off-load at random of liquid phase compression preferably; When liquid holdup is higher, in servicely is prone to that the active chamber internal pressure is unbalanced, pressure medium increases suddenly in the individual work chamber, even produces liquid hit phenomenon; Have a strong impact on the safe and reliable operation of multiphase pump, thereby the double-screw type multiphase mixing transmission pump is not suitable for the mixing supercharging of liquid holdup when higher and carries.
Scroll machine is the developing history in existing over one hundred year so far; Have remarkable advantages such as efficient height, reliability be high and simple in structure; Obtained using widely as refrigeration compressor, aerodynamic compressor, pressurized machine and vacuum pump, however the relevant report of but not seeing relevant eddy type multiphase pump both at home and abroad.
Summary of the invention
The objective of the invention is to provide a kind of scroll gas-liquid multiphase mixing transmission pump; Be applicable to the heterogeneous supercharging conveying of gas-liquid when liquid holdup is higher; Adopt the reducing circle involute to make up and become the back lash wrap, make it form one at work and lead to the internal leakage discharge channel of exhaust port direction, realize that the liquid phase that the heterogeneous supercharging of gas-liquid mixes in the defeated process compresses off-load at random from compression chamber; When avoiding supercharging to carry the higher multiphase medium of liquid holdup; Pressure medium increases suddenly in the active chamber that occurs because of liquid phase is difficult for compressing, even the liquid hammer problem, guarantees the safe and reliable operation of multiphase pump.
A kind of scroll gas-liquid multiphase mixing transmission pump mainly is made up of component such as moving scroll, fixed scroll, stake body, crank shaft and little crank throw anti-rotation mechanisms; The two dynamic and static scroll that molded lines is identical rotate to an angle relatively and the certain distance of setovering after to being inserted in together, form two groups of working chamber volumes, moving vortex is under the drive of crank shaft; Under the constraint of little crank throw anti-rotation mechanism; Realize the revolution translation with quiet vortex, formed contact points moves to the center along wrap tooth wall continuously, and formed working chamber volume diminishes gradually; And move to the center; Formed periodically variable working chamber volume, realized suction, compression and the discharge of gas-liquid mixed media, the supercharging of accomplishing the gas-liquid medium mixes defeated process.
Dynamic and static wrap combines by the circle involute of outer ring and the reducing circle involute of inner ring, and the wrap that the circle involute part is constituted realizes the engagement of no gap, forms the suction chamber volume, accomplishes the suction process of gas-liquid medium; When the wrap that reducing circle involute part is constituted is participated in engagement; Form compression chamber and discharge side volume; There is the back lash; The compression and the discharge process of completion gas-liquid medium, thereby there is the internal leakage passage that leads to the exhaust port direction from compression chamber in compression process, the off-load at random that the gas-liquid medium compresses through a small amount of internal leakage realization liquid phase in this passage.Though there is internal leakage in the compression process, can not reduce volumetric efficiency, thereby the present invention has the important engineering meaning for the application of the gas liquid ratio scope of widening the positive displacement multiphase pump and scroll machine.
The technical solution adopted for the present invention to solve the technical problems is: adopt reducing circle involute structure to have the back lash wrap; Make its formed compression chamber form an internal leakage discharge channel of leading to the exhaust port direction from compression chamber at work; The liquid phase that the supercharging of realization gas-liquid medium mixes in the defeated process is compressed off-load at random; When avoiding supercharging to carry the higher multiphase medium of liquid holdup; Pressure medium increases suddenly in the compression chamber because of the difficult compression of liquid phase occurs, even the liquid hammer problem, guarantees the safe and reliable operation of multiphase pump.
The invention has the beneficial effects as follows: scroll gas-liquid multiphase mixing transmission pump 1. proposed by the invention has liquid phase and compresses unloading function at random, is applicable to the application when liquid holdup is higher, and can guarantee its safety in operation; 2. liquid phase compression unloading channel is to lead to the exhaust port direction from compression chamber, and the leakage that is produced is internal leakage, can not reduce volumetric efficiency; 3. active chamber does not have the back lash in the suction process, and suction process does not have external leakage; Remarkable advantages such as scroll gas-liquid multiphase mixing transmission pump 4. proposed by the invention has the efficient height, reliability is high and simple in structure.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further.
Fig. 1 is the structure diagram of scroll gas-liquid multiphase mixing transmission pump.
Fig. 2 is dynamic and static wrap engagement process figure.
Fig. 3 is the static vortex tooth molded lines.
Fig. 4 is the dynamic vortex tooth molded lines.
Among the figure: the 1-fixed scroll; 2-moves scroll; The 3-exhaust port; The 4-suction port; The little crank throw anti-rotation mechanism of 5-; 6-balance iron; The 7-bearing; The 8-stake body; The 9-crank shaft; The 201-static vortex tooth; The 202-dynamic vortex tooth; The 203-exhaust port; The 204-compression chamber; The 205-back lash; The quiet vortex of 301-outside reducing circle involute; The inboard reducing circle involute of the quiet vortex of 302-; The quiet vortex of 303-outside reducing circle involute; The inboard reducing circle involute of the quiet vortex of 304-; The moving vortex of 401-outside reducing circle involute; The inboard reducing circle involute of the moving vortex of 402-; The moving vortex of 403-outside reducing circle involute; The inboard reducing circle involute of the moving vortex of 404-.
Embodiment
As shown in Figure 1; Scroll gas-liquid multiphase mixing transmission pump mainly is made up of component such as fixed scroll 1, moving scroll 2, little crank throw anti-rotation mechanism 5, stake body 8, crank shaft 9, balance iron 6 and bearings 7; The circumference of fixed scroll 1 is provided with suction port 4, and the center of quiet vortex 1 is provided with exhaust port 3.In the working procedure, dynamic and static two scroll that molded lines is identical rotate to an angle relatively and the certain distance of setovering after to being inserted in together, form two groups of crescent shape working chamber volumes; Because formed compression chamber is to constitute by becoming the back lash molded lines, thereby there is the back lash in formed compression chamber leading to the exhaust port direction, forms an internal leakage passage that leads to the exhaust port direction from compression chamber in compression process; Discharge channel as the liquid phase compression; Moving vortex under the constraint of little crank throw anti-rotation mechanism, is realized the revolution translation with quiet vortex under the drive of crank shaft; Formed working chamber volume reduces gradually; Periodically change, realize suction, compression and the discharge of gas-liquid medium, accomplish the supercharging course of conveying.The cyclically-varying process of working chamber volume that has the back lash is as shown in Figure 2.
As shown in Figure 2, (a) figure is the dynamic and static wrap engagement figure of active chamber when being in breathing process and finishing, and establishes crank angle θ this moment=0 °; Dynamic and static wrap engagement figure when (b) figure is θ=90 °; Dynamic and static wrap engagement figure when (c) figure is θ=180 °; Dynamic and static wrap engagement figure when (d) figure is θ=270 °; Dynamic and static wrap engagement figure when (d) figure is θ=360 °.Static vortex tooth 201 forms 2 groups of compression chambers 204 with dynamic vortex tooth 202 through engagement, and compression chamber 204 is designed with back lash 205 leading to exhaust port 203 directions, forms a discharge channel; Reduce and be compressed at compression chamber 204 internal cause volumes at gas-liquid mixed media; Its pressure is improved, and simultaneously some gas-liquid mixed media leaks into exhaust port 203 through back lash 205, realizes that thus liquid phase compresses off-load at random; Avoid when liquid holdup is higher; Takes place because of volume reduces to be difficult for compression with liquid phase that pressure medium increases suddenly in the compression chamber, even the accident of generation liquid hammer, guaranteed the safety in operation of multiphase mixing transmission pump.Can form and have dynamic and static wrap molded lines such as the Fig. 3 and shown in Figure 4 that becomes the back lash.
As shown in Figure 3, static vortex tooth outer ring ABC section is to be made up of circle involute, is respectively quiet vortex outside circle involute 301 and the inboard circle involute 302 of quiet vortex; Static vortex tooth inner ring CDE section is to be made up of the reducing circle involute, is respectively quiet vortex outside reducing circle involute 303 and the inboard reducing circle involute 304 of quiet vortex.
As shown in Figure 4, dynamic vortex tooth outer ring ABC section is to be made up of circle involute, is respectively moving vortex outside circle involute 401 and the inboard circle involute 402 of moving vortex; Dynamic vortex tooth inner ring CDE section is to be made up of the reducing circle involute, is respectively moving vortex outside reducing circle involute 403 and the inboard reducing circle involute 404 of moving vortex.
During enforcement; The size of static vortex tooth 201 and dynamic vortex tooth 202 formed back lashes 205 can be confirmed according to the gas liquid ratio size of gas-liquid medium medium, makes to form a discharge channel between compression chamber and the exhaust port; Reduce because of volume in the work; Gas-liquid medium medium generation little clearance internal leakage realization liquid phase is compressed off-load at random, has solved when liquid holdup is higher, because of liquid phase is difficult for the liquid hammer problem that compression occurs.
During enforcement, static vortex tooth 201 and dynamic vortex tooth 202 are when the work engagement, and circle involute wrap ABC section at first gets into engagement; When engagement, do not have the back lash, be suction process this moment, after breathing process finishes; The working chamber volume sealing gets into compression process, subsequently along with the rotation of crank shaft; Contact points moves to the center along the wrap wall continuously, and the compression chamber volume reduces gradually, constitutes wrap CDE section by reducing circle involute molded lines and is in engagement; Exist the back lash this moment, and along with further reducing of compression chamber volume, the back lash increases gradually.
Claims (4)
1. scroll gas-liquid multiphase mixing transmission pump; Mainly form by moving scroll, fixed scroll, stake body, bent axle, little crank throw anti-rotation mechanism; It is characterized in that: the two dynamic and static scroll that molded lines is identical rotate to an angle relatively and the certain distance of setovering after to being inserted in together, form a plurality of crescent shape working chamber volumes, moving vortex is under the drive of crank shaft; Under the constraint of little crank throw anti-rotation mechanism; And realize the revolution translation between the quiet vortex, realize the cyclically-varying of a plurality of working chamber volumes, accomplish suction, compression and the discharge of gas-liquid medium; Circle involute is adopted in dynamic and static wrap outer ring, accomplishes suction process, no back lash; Dynamic and static wrap inner ring adopts the reducing circle involute; Form and become the back lash wrap; Realize the off-load at random of liquid phase compression; Accomplish the compression and the discharge process of gas-liquid medium, dynamic and static wrap all adopts circle involute and reducing circle involute combination molded lines, and its wrap molded lines equation is respectively:
The outside circle involute 301 of static vortex tooth outer ring:
The inboard circle involute 302 of static vortex tooth outer ring:
The outside reducing circle involute 303 of static vortex tooth inner ring:
The inboard reducing circle involute 304 of static vortex tooth inner ring:
The outside circle involute 401 of dynamic vortex tooth outer ring:
The inboard circle involute 402 of dynamic vortex tooth outer ring:
The outside reducing circle involute 403 of dynamic vortex tooth inner ring:
The inboard reducing circle involute 404 of dynamic vortex tooth inner ring:
In the formula: t-angle parameter, rad; R
b-circle involute basic circle reducing, mm; Angle, rad take place in α-circle involute; φ
nThe angle parameter of-circle involute and reducing circle involute joint, rad; φ
e-wrap tooth tail terminal angle parameter, rad; R
vThe radius of-reducing circle involute basic circle, mm,
The a-constant, mm; β
wThe angle takes place in-outside reducing circle involute, rad,
β
nThe angle takes place in-inboard reducing circle involute, rad,
φ
s-wrap tooth head top angle parameter, rad.
2. scroll gas-liquid multiphase mixing transmission pump according to claim 1 is characterized in that: its compression chamber has an internal leakage passage that leads to the exhaust port direction, realizes the off-load at random of liquid phase compression.
3. scroll gas-liquid multiphase mixing transmission pump according to claim 1 is characterized in that: after suction process finishes, form the working chamber volume of sealing; Along with the rotation of crank shaft, compression process begins subsequently, and the compression chamber volume reduces gradually; Lead to the exhaust port direction from compression chamber and the back lash occurs this moment; Along with the carrying out of compression process, the compression chamber volume is more little, and the back lash is big more.
4. scroll gas-liquid multiphase mixing transmission pump according to claim 1 is characterized in that: adopt little crank throw anti-rotation mechanism between moving scroll and the stake body, realize the revolution translation between the dynamic and static scroll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100169413A CN101603530B (en) | 2009-06-30 | 2009-06-30 | Scroll gas-liquid multiphase mixing transmission pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100169413A CN101603530B (en) | 2009-06-30 | 2009-06-30 | Scroll gas-liquid multiphase mixing transmission pump |
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| Publication Number | Publication Date |
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| CN101603530A CN101603530A (en) | 2009-12-16 |
| CN101603530B true CN101603530B (en) | 2012-06-27 |
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| CN2009100169413A Expired - Fee Related CN101603530B (en) | 2009-06-30 | 2009-06-30 | Scroll gas-liquid multiphase mixing transmission pump |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047135B (en) * | 2011-10-13 | 2016-04-06 | 中国石油大学(华东) | A kind of scroll wrap molded line of hydrojet scroll compressor |
| TWI472684B (en) * | 2012-11-22 | 2015-02-11 | Ind Tech Res Inst | Scroll compressor |
| CN103939331B (en) * | 2014-04-22 | 2016-01-13 | 西安交通大学 | A kind of two phase flow refrigeration system eddy type working medium pump |
| CN104847414B (en) * | 2015-05-21 | 2017-02-22 | 中国石油大学(华东) | Structured dynamic mesh modeling method for vortex type fluid machine |
| CN106438355B (en) * | 2016-10-10 | 2018-10-23 | 中国石油大学(华东) | A kind of gradual change wall thickness scroll wrap engaged entirely |
| CN106194749B (en) * | 2016-10-10 | 2018-06-01 | 中国石油大学(华东) | A kind of gradual change wall thickness binary vortices tooth engaged entirely |
| CN107559191B (en) * | 2017-09-12 | 2023-11-24 | 上海光裕汽车空调压缩机有限公司 | Scroll compressor and modification method of scroll wrap profile thereof |
| CN107939681B (en) * | 2018-01-05 | 2023-07-25 | 中国石油大学(华东) | Full-meshing variable-wall-thickness vortex vacuum pump |
| CN108302034A (en) * | 2018-04-25 | 2018-07-20 | 北京陆海新程科技有限公司 | High gas-liquid ratio multi-phase mixed delivering supercharging device |
| CN110030191B (en) * | 2019-05-09 | 2024-03-19 | 泰铂（上海）环保科技股份有限公司 | Vortex molded line tooth head structure of vortex compressor and correction method thereof |
| CN113482922B (en) * | 2021-08-23 | 2023-04-07 | 江苏太平洋精锻科技股份有限公司 | Method for forming internal and external molded lines of variable-wall-thickness vortex rotating stationary disk body |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85104920B (en) * | 1985-06-27 | 1987-05-06 | 三菱重工业株式会社 | Rotary type fluid machine |
| US4678415A (en) * | 1984-05-25 | 1987-07-07 | Mitsubishi Jukogyo Kabushiki Kaisha | Rotary type fluid machine |
| CN2826010Y (en) * | 2005-04-11 | 2006-10-11 | 吴晓斌 | Flexible vortex compressor |
-
2009
- 2009-06-30 CN CN2009100169413A patent/CN101603530B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4678415A (en) * | 1984-05-25 | 1987-07-07 | Mitsubishi Jukogyo Kabushiki Kaisha | Rotary type fluid machine |
| CN85104920B (en) * | 1985-06-27 | 1987-05-06 | 三菱重工业株式会社 | Rotary type fluid machine |
| CN2826010Y (en) * | 2005-04-11 | 2006-10-11 | 吴晓斌 | Flexible vortex compressor |
Non-Patent Citations (2)
| Title |
|---|
| JP昭60-256581A 1985.12.18 |
| JP昭62-126201A 1987.06.08 |
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