CN102872657A - Novel gas-liquid separating device - Google Patents
Novel gas-liquid separating device Download PDFInfo
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- CN102872657A CN102872657A CN2012104121434A CN201210412143A CN102872657A CN 102872657 A CN102872657 A CN 102872657A CN 2012104121434 A CN2012104121434 A CN 2012104121434A CN 201210412143 A CN201210412143 A CN 201210412143A CN 102872657 A CN102872657 A CN 102872657A
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- 239000007788 liquid Substances 0.000 title claims abstract description 54
- 238000007599 discharging Methods 0.000 claims abstract description 63
- 239000012530 fluid Substances 0.000 claims abstract description 11
- 238000000926 separation method Methods 0.000 abstract description 56
- 239000007791 liquid phase Substances 0.000 abstract description 18
- 239000012071 phase Substances 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 20
- 208000036460 primary closed-angle glaucoma Diseases 0.000 description 15
- 238000003466 welding Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 3
- 238000010923 batch production Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention discloses a novel gas-liquid separating device comprising a hollow pipe body, wherein an exhaust port is arranged at the top of the pipe body and a liquid discharging opening is arranged at the bottom of the pipe body; a separation plate is arranged in the middle of the pipe body; the pipe body is divided into an upper chamber and a lower chamber by the separation plate; one side of the lower chamber of the pipe body is connected with an input pipe; mixed fluid which is input by the input pipe is tangent with a pipe wall; the center of the separation plate is connected with a hollow straight pipe which is communicated with the lower chamber of the pipe body and extends to the upper chamber of the pipe body; the diameter of the hollow straight pipe is more than or equal to the diameter of the input pipe; one side of the top of the straight pipe is provided with a rotary pipe communicated with the straight pipe; the rotary pipe extends along the direction towards the pipe wall of the pipe body; and the separation plate is further connected with a liquid discharging pipe which is communicated with the upper chamber of the pipe body and extends towards the lower chamber of the pipe body. The novel gas-liquid separating device has the advantages that secondary separation of the mixed fluid is realized on the basis of primary separation of the existing GLCC (Gas-liquid Cylindrical Cyclone) separator, so that the separation effect of the mixed fluid is better and a liquid phase and a gas phase are sufficiently separated; and meanwhile, the volume of the device can be arranged to be smaller and the appearance is beautiful.
Description
Technical field
The present invention relates to the GLCC gas-liquid separation device, relate in particular to a kind of novel gas-liquid separator.
Background technology
Extra large land natural gas in recent years, shale gas, the research of various gas-liquid separation technology more and more comes into one's own in the exploration and development of coal bed gas and the various industrial processes, develops very fast.Such as GLCC(single tube cyclone separator) extensive use of technology.The simple cost of GLCC cyclone separator arrangement is low, but its physical dimension is higher, and the separation liquid phase holdup time is short, and is poor for the Adaptability of medium that the gas-liquid flowed fluctuation is larger.
As shown in Figure 1, the GLCC separator is according to gas-liquid rotational flow separation principle, separator is linked to each other with the separator body of vertical by the tangential direction of the input pipe under being tilted to along special angle, and the fluid-mixing of inputting through input pipe tangentially enters in the separator body after the entrance pre-separation.Because cyclonic action, in the separator body, centrifugal force, gravity and buoyancy form the vortex sheet of an inverted cone-shaped.The large liquid phase of density flows to the separator bottom along the tube wall of vertical body, and the little gas phase of density rises to vortex sheet and flow to the separator top along the central authorities of vortex, and final gas phase and liquid phase are discharged from top and the bottom of separator respectively, thereby realize that two are separated.
The input pipe of traditional GLCC separator is tangential and the welding of separator body, and such structure is so that the bonding area of input pipe and separator body is large, and welding operation is difficult, and the product design utmost point after the welding is not attractive in appearance.
Although existing GLCC separator is obtained certain effect at the separation fluid-mixing, also there is following shortcoming in the GLCC separator:
1, since the GLCC separator be strictly to design according to operating mode, therefore size can not determine, can only customize according to actual conditions, can not realize standard product, and then also can't form streamline production.
2, the GLCC separator only carries out first separation, so the operating mode inferior separating effect larger to the gas-liquid two-phase changes in flow rate.
3, GLCC cyclone separator arrangement size is higher, be inconvenient to carry out movable and skid-mounted, mobile transportation difficulty.
4, the GLCC separator does not have good inhibitory action to the slug flow of burst, easily causes gas phase band liquid.
When 5, the GLCC separator separated fluid-mixing, the liquid phase time of staying in the fluid-mixing was short, did not have the abundant sedimentation separation time, caused gas-liquid separation insufficient.
Summary of the invention
The purpose of this invention is to provide a kind of gas-liquid two-phase good separating effect to fluid-mixing, device volume is little, the novel gas-liquid separator of good looking appearance.
For achieving the above object, a kind of novel gas-liquid separator of the present invention, it comprises hollow tube, the body top is provided with exhaust outlet, the body bottom is provided with leakage fluid dram, described body middle part is provided with dividing plate, dividing plate is divided into epicoele and cavity of resorption with body, body cavity of resorption one side is connected with input pipe, fluid-mixing and tube wall by the input pipe input are tangent, the dividing plate center is connected with the straight shape pipe of hollow that is communicated with the body cavity of resorption and extends to the body epicoele, the straight shape pipe of hollow diameter is more than or equal to the input pipe diameter, and straight shape pipe top one side is provided with the gyrotron that is communicated with it, and gyrotron extends towards the tube wall direction of body, downwards the camber line tangential tilt is 20-50 °, and and tube wall between leave the gap; Also be connected with the discharging tube that is communicated with the body epicoele and extends to the body cavity of resorption on the dividing plate, discharging tube is first to the centroclinal extension of body, and when discharging tube center and body center superposition, discharging tube extends vertically downward, is lower than the input port bottom the discharging tube.
Adopt above structure, fluid-mixing is after input pipe enters body, first carry out first separation at the body cavity of resorption, the straight shape pipe of hollow that passes through dividing plate through the gas phase of first separation upwards rises, enter the body epicoele, and then the gyrotron of being managed top one side by straight shape flows out downwards to the tube wall of body is tangential, carry out swirl flow at the body epicoele, the liquid phase that swirl flow separates is discharged from the leakage fluid dram of body by the discharging tube that is connected with dividing plate, and the gas phase after the secondary separation is discharged by the exhaust outlet at body top.
In the above structure, the straight shape pipe of hollow diameter must be more than or equal to the input pipe diameter, and fluid-mixing is in the rotational flow separation process like this, and easily the pressure in the balance body prevents that the body internal pressure is too high; And after adopting above structure, do not need at body relief valve to be set, can guarantee can not form high pressure in the body.
The present invention adopts above structure, has realized the secondary separation to fluid-mixing on the basis of existing GLCC separator first separation, thereby so that better to the separating effect of fluid-mixing.Adopt above structure so that liquid phase is long in the time of staying of body, thereby liquid phase fully can be separated with gas phase.Because gas-liquid separation device of the present invention can separate fully to the liquid and gas of fluid-mixing, so gas-liquid separation device of the present invention can will highly reduce, also the pipe diameter of gas-liquid separation device can be dwindled simultaneously, thereby dwindle on the whole the volume of gas-liquid separation device.In addition, gas-liquid separation device of the present invention is fully separating in the situation of the liquid and gas in the fluid-mixing, can realize the standardization batch production of gas-liquid separation device, makes gas-liquid separation device have wider application prospect.
The input pipe of described body cavity of resorption one side continues in the body with after body is connected, and extend to tube wall with 20-50 ° of downward camber line tangential tilt the extension, and and tube wall between leave the gap.Adopt above structure, input pipe and the junction of body can be vertical welding, and the bonding area of input pipe and body minimum has not only been simplified welding operation like this, can also make the weld good looking appearance.Simultaneously, input pipe can also be that other any angles are connected with body a section of body outside, only need extension that input pipe extends into body to extend to tube wall with 20-50 ° of downward camber line tangential tilt, guarantee that namely fluid-mixing in the input pipe enters behind the body tangent with tube wall.
The angle of described dividing plate and horizontal plane is 0-70 °.When the angle of dividing plate and horizontal plane was 0 °, dividing plate was connected with body is vertical.When dividing plate tilted to be connected with body, the liquid phase after the secondary separation of being more convenient for was drained from the discharging tube that is connected with dividing plate.Wherein, when the angle of dividing plate and horizontal plane was 30 °, the liquid phase of secondary separation is the easiest drained from discharging tube.
The height of the straight shape pipe of the hollow that connects on the described dividing plate is the 20-70% of body height.Such height is convenient to the gas phase of first separation after the rising of the straight shape pipe of hollow, gets back to from the gyrotron of its top one side and carries out the swirl flow separation in the body, and such height can guarantee the effect that swirl flow separates.
When described dividing plate was obliquely installed, the downward-sloping side of discharging tube and dividing plate was connected, and was convenient to the liquid phase that swirl flow separates and discharged from discharging tube.
Described discharging tube is during to the centroclinal extension of body, and the angle of this extension and horizontal plane is 10-80 °.The advanced line tilt of discharging tube is to the body center, and then therefrom the heart extends downward vertically, can prevent that like this discharging tube from blocking the fluid-mixing of an eddy flow.Simultaneously, discharging tube is during to the centroclinal extension of body, and when the angle of discharging tube and horizontal plane was too small, although the liquid delivery ratio in the discharging tube is more smooth and easy, discharging tube need to just can tilt to the body center at long height; When the angle of discharging tube and horizontal plane was excessive, discharging tube can tilt to the center in shorter scope, but the liquid that can affect in the discharging tube is discharged.Wherein, when the angle of discharging tube and horizontal plane is 60 °, not only the liquid in the discharging tube is discharged smooth and easyly downwards, and discharging tube also can be in shorter high inclination to the center simultaneously.
Be evenly distributed with three stay pipes outside the bottom of described discharging tube, the other end of three stay pipes is connected with the tube wall of body, is convenient to so fixedly discharging tube bottom.
Described discharging tube bottom extends into leakage fluid dram, thereby the liquid of swirl flow separation can not brought in the straight shape pipe of the hollow that is connected with dividing plate by gas phase, again separates, thereby affects separative efficiency.
Adopt gas-liquid separation device of the present invention, have advantages of following:
1) realized secondary separation to fluid-mixing on the basis of existing GLCC separator first separation, thus so that better to the separating effect of fluid-mixing.
2) adopt structure of the present invention so that liquid phase is long in the time of staying of body, thereby the liquid phase in the fluid-mixing fully can be separated with gas phase.
3) gas-liquid separation device of the present invention can dwindle the volume of gas-liquid separation device on the whole when guaranteeing gas phase and liquid phase is fully separated, thereby is convenient to movement, installation or transfer gas liquid separating apparatus.
4) but gas-liquid separation device standardization of the present invention batch production makes gas-liquid separation device have wider application prospect.
5) after gas-liquid separation device of the present invention improved input pipe, the one section shape of input pipe outside body can arrange arbitrarily, can realize input pipe minimum area ground and pipe welding, simplified welding operation, made the profile of gas-liquid separation device more attractive in appearance.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
Fig. 1 is the separation principle figure of prior art GLCC separator;
Fig. 2 is the structural representation of gas-liquid separation device of the present invention.
The specific embodiment
As shown in Figure 2, a kind of novel gas-liquid separator of the present invention, it comprises hollow tube 1, body 1 top is provided with exhaust outlet 3, body 1 bottom is provided with leakage fluid dram 4, described body 1 middle part is provided with dividing plate 5, dividing plate 5 is divided into epicoele 11 and cavity of resorption 12 with body 1, body cavity of resorption 12 1 sides are connected with input pipe 2, fluid-mixing and tube wall by input pipe 2 inputs are tangent, dividing plate 5 centers are connected with the straight shape pipe 6 of hollow that is communicated with body cavity of resorption 12 and extends to body epicoele 11, the straight shape of hollow is managed 6 diameters more than or equal to input pipe 2 diameters, and straight shape is managed 6 tops, one side and is provided with the gyrotron 7 that is communicated with it, and gyrotron 7 extends towards the tube wall direction of body 1, downwards the camber line tangential tilt is 20-50 °, and and tube wall between leave the gap; Also be connected with the discharging tube 8 that is communicated with body epicoele 11 and extends to body cavity of resorption 12 on the dividing plate 5, discharging tube 8 is first to body 1 centroclinal extension, when discharging tube 8 centers and body 1 center superposition, discharging tube 8 extends vertically downward, and discharging tube 8 bottoms are lower than input port 21.
The input pipe 2 of described body cavity of resorption 12 1 sides continues in the body 1 with after body 1 is connected, and extend to tube wall with 20-50 ° of downward camber line tangential tilt extension 22, and and tube wall between leave the gap.Adopt above structure, input pipe 2 and the junction of body 1 can be vertical welding, and the bonding area of input pipe 2 and body 1 minimum has not only been simplified welding operation like this, can also make the weld good looking appearance.Simultaneously, input pipe 2 can also be that other any angles are connected with body 1 a section of body 1 outside, only need extension that input pipe 2 extends into body 1 to extend to tube wall with 20-50 ° of downward camber line tangential tilt, namely guarantee fluid-mixing in the input pipe 2 enter behind the body 1 and tube wall tangent.
Adopt above structure, fluid-mixing is after the extension 22 of input pipe 2 tangentially enters body 1, in body 1, carry out one time first rotational flow separation, gas phase through first separation upwards rises by the straight shape pipe 6 of hollow that is connected with dividing plate 5, and then tangentially got back to downwards by the gyrotron 7 that straight shape is managed 6 tops, one side and to carry out swirl flow in the body epicoele 11, the liquid phase that swirl flow separates is discharged from the leakage fluid dram 4 of body 1 by the discharging tube 8 that is connected with dividing plate 5, and the gas phase after the secondary separation is discharged by the exhaust outlet 3 at body 1 top.After dividing plate 5 was separated into epicoele 11 and cavity of resorption 12 with body 1 like this, fluid-mixing carried out one time first rotational flow separation in body cavity of resorption 12, and the gas of a rotational flow separation carries out swirl flow more again in body epicoele 11 separates.
In the above structure, the straight shape of hollow is managed 6 diameters must be more than or equal to input pipe 2 diameters, and fluid-mixing is in the rotational flow separation process like this, and easily the pressure in the balance body 1 prevents that body 1 internal pressure is too high; And after adopting above structure, do not need at body 1 relief valve to be set, can guarantee can not form high pressure in the body 1.
Described dividing plate 5 is 0-70 ° with the angle of horizontal plane.When the angle of dividing plate 5 and horizontal plane is 0 °, dividing plate 5 with manage that 1 body is vertical to be connected.When dividing plate 5 tilted to be connected with body 1, the liquid phase after the secondary separation of being more convenient for was drained from the discharging tube 8 that is connected with dividing plate 5.Wherein, when the angle of dividing plate 5 and horizontal plane was 30 °, the liquid phase of secondary separation is the easiest drained from discharging tube 8.
The height of the straight shape pipe 6 of the hollow that connects on the described dividing plate 5 is the 20-70% of body height.Such height is convenient to the gas phase of first separation after straight shape pipe 6 risings of hollow, gets back to from the gyrotron 7 of its top one side and carries out the swirl flow separation in the body 1, and such height can guarantee the effect that swirl flow separates.
When described dividing plate 5 was obliquely installed, discharging tube 8 and dividing plate 5 downward-sloping sides were connected, and were convenient to the liquid phase that swirl flow separates and discharged from discharging tube 8.
Described discharging tube 8 is during to body 1 centroclinal extension, and this extension 81 is 10-80 ° with the angle of horizontal plane.Discharging tube 8 advanced line tilts are to body 1 center, and then therefrom the heart extends downward vertically, can prevent that like this discharging tube 8 from blocking the fluid-mixing of an eddy flow.Simultaneously, discharging tube 8 is during to body 1 centroclinal extension, and when discharging tube 8 and the angle of horizontal plane were too small, although the liquid delivery ratio in the discharging tube 8 is more smooth and easy, discharging tube 8 need to just can tilt to body 1 center at long height; When discharging tube 8 and the angle of horizontal plane were excessive, discharging tube 8 can tilt to the center in shorter scope, but the liquid that can affect in the discharging tube 8 is discharged.Wherein, when the angle of discharging tube 8 and horizontal plane is 60 °, not only the liquid in the discharging tube 8 is discharged smooth and easyly downwards, and discharging tube 8 also can be in shorter high inclination to the center simultaneously.
The other end that is evenly distributed with 9, three stay pipes 9 of three stay pipes outside the bottom of described discharging tube 8 is connected with the tube wall of body 1, is convenient to so fixedly discharging tube 8 bottoms.
Described discharging tube 8 bottoms extend into leakage fluid dram 4, thereby the liquid of swirl flow separation can not brought in the straight shape pipe 6 of hollow of dividing plate 5 by gas phase, again separate, thereby affect separative efficiency.
Claims (9)
1. novel gas-liquid separator, it comprises hollow tube, the body top is provided with exhaust outlet, the body bottom is provided with leakage fluid dram, it is characterized in that: described body middle part is provided with dividing plate, dividing plate is divided into epicoele and cavity of resorption with body, body cavity of resorption one side is connected with input pipe, fluid-mixing and tube wall by input pipe input are tangent, and the dividing plate center is connected with and is communicated with the body cavity of resorption and manages to the straight shape of hollow that the body epicoele extends, and the straight shape of hollow is managed diameter more than or equal to the input pipe diameter, straight shape pipe top one side is provided with the gyrotron that is communicated with it, gyrotron extends towards the tube wall direction of body, and the camber line tangential tilt is 20-50 ° downwards, and and tube wall between leave the gap; Also be connected with the discharging tube that is communicated with the body epicoele and extends to the body cavity of resorption on the dividing plate, discharging tube is first to the centroclinal extension of body, and when discharging tube center and body center superposition, discharging tube extends vertically downward, is lower than the input port bottom the discharging tube.
2. novel gas-liquid separator according to claim 1, it is characterized in that: the input pipe of described body cavity of resorption one side is with after body is connected, continue in the body, extend to tube wall with 20-50 ° of downward camber line tangential tilt the extension, and and tube wall between leave the gap.
3. novel gas-liquid separator according to claim 1, it is characterized in that: the angle of described dividing plate and horizontal plane is 0-70 °.
4. novel gas-liquid separator according to claim 3, it is characterized in that: the angle of described dividing plate and horizontal plane is 30 °.
5. novel gas-liquid separator according to claim 1 is characterized in that: the height of the straight shape pipe of hollow that described dividing plate center connects is the 20-70% of body height.
6. novel gas-liquid separator according to claim 3 is characterized in that: when described dividing plate was obliquely installed, the downward-sloping side of discharging tube and dividing plate was connected.
7. novel gas-liquid separator according to claim 1 is characterized in that: described discharging tube is during to the centroclinal extension of body, and the angle of this extension and horizontal plane is 10-80 °.
8. novel gas-liquid separator according to claim 7, it is characterized in that: be evenly distributed with three stay pipes outside the bottom of described discharging tube, the other end of three stay pipes is connected with the tube wall of body.
9. novel gas-liquid separator according to claim 8 is characterized in that: extend into leakage fluid dram bottom the described discharging tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210412143.4A CN102872657B (en) | 2012-10-25 | 2012-10-25 | Gas-liquid separating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210412143.4A CN102872657B (en) | 2012-10-25 | 2012-10-25 | Gas-liquid separating device |
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| Publication Number | Publication Date |
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| CN102872657A true CN102872657A (en) | 2013-01-16 |
| CN102872657B CN102872657B (en) | 2014-06-04 |
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| CN201210412143.4A Active CN102872657B (en) | 2012-10-25 | 2012-10-25 | Gas-liquid separating device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355380A (en) * | 2018-03-20 | 2018-08-03 | 洛阳智达石化工程有限公司 | A kind of acid hydrocarbon separator and sour hydrocarbon separating technology |
| CN109405369A (en) * | 2017-08-18 | 2019-03-01 | 美的集团股份有限公司 | Fluid treating device and temperature control equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201088892Y (en) * | 2007-07-13 | 2008-07-23 | 中国石油化工集团公司 | Gas-liquid condenser |
| CN201603632U (en) * | 2009-09-21 | 2010-10-13 | 宁波威瑞泰默赛多相流仪器设备有限公司 | Binocular spiral-flow type petrol-water separator |
| WO2010150078A1 (en) * | 2009-06-26 | 2010-12-29 | Eni S.P.A. | Compact inertial gas-liquid separation system |
-
2012
- 2012-10-25 CN CN201210412143.4A patent/CN102872657B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201088892Y (en) * | 2007-07-13 | 2008-07-23 | 中国石油化工集团公司 | Gas-liquid condenser |
| WO2010150078A1 (en) * | 2009-06-26 | 2010-12-29 | Eni S.P.A. | Compact inertial gas-liquid separation system |
| CN201603632U (en) * | 2009-09-21 | 2010-10-13 | 宁波威瑞泰默赛多相流仪器设备有限公司 | Binocular spiral-flow type petrol-water separator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405369A (en) * | 2017-08-18 | 2019-03-01 | 美的集团股份有限公司 | Fluid treating device and temperature control equipment |
| US11168929B2 (en) | 2017-08-18 | 2021-11-09 | Midea Group Co., Ltd. | Fluid treatment device and temperature regulation apparatus |
| CN108355380A (en) * | 2018-03-20 | 2018-08-03 | 洛阳智达石化工程有限公司 | A kind of acid hydrocarbon separator and sour hydrocarbon separating technology |
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| Publication number | Publication date |
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| CN102872657B (en) | 2014-06-04 |
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Inventor after: Lu Jiuqing Inventor after: Dong Qingfeng Inventor after: Yang Jun Inventor after: Yu Miao Inventor after: Zeng Guanxin Inventor after: Wang Lianggui Inventor after: Yang Xiaodong Inventor before: Lu Jiuqing Inventor before: Dong Qingfeng Inventor before: Yang Jun Inventor before: Yu Miao Inventor before: Zeng Guanxin Inventor before: Wang Lianggui |
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Free format text: CORRECT: INVENTOR; FROM: LU JIUQING DONG QINGFENG YANG JUN YU MIAO CENG GUANXIN WANG LIANGGUI TO: LU JIUQING DONG QINGFENG YANG JUN YU MIAO CENG GUANXIN WANG LIANGGUI YANG XIAODONG |
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Application publication date: 20130116 Assignee: Urumqi Chang Hui Automation Meter Co., Ltd. Assignor: Lu Jiuqing Contract record no.: 2015650000003 Denomination of invention: Gas-liquid separating device Granted publication date: 20140604 License type: Exclusive License Record date: 20150115 |
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Owner name: WULUMUQI CHANGHUI AUTOMATIC METER CO., LTD. Free format text: FORMER OWNER: LU JIUQING Effective date: 20150825 |
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Effective date of registration: 20150825 Address after: 830026 No. 22 Shenyang street, Bei Xin District, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee after: Urumqi Chang Hui Automation Meter Co., Ltd. Address before: 830000 the Xinjiang Uygur Autonomous Region Urumqi shayibake District 4 Friendship Road No. 43 Building No. 304 Patentee before: Lu Jiuqing |
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Address after: 830026 No. 22, Shenyang street, Bei Bei District, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee after: XINJIANG ZHONGYUAN TIANNENG OIL & GAS TECHNOLOGY CO., LTD. Address before: 830026 No. 22 Shenyang street, Bei Xin District, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee before: Urumqi Chang Hui Automation Meter Co., Ltd. |