CN107050931B - Gas-liquid multistage separation device for pump inflow gas-containing experiment - Google Patents
Gas-liquid multistage separation device for pump inflow gas-containing experiment Download PDFInfo
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- CN107050931B CN107050931B CN201710374600.8A CN201710374600A CN107050931B CN 107050931 B CN107050931 B CN 107050931B CN 201710374600 A CN201710374600 A CN 201710374600A CN 107050931 B CN107050931 B CN 107050931B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
- B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0068—General arrangements, e.g. flowsheets
Abstract
The invention discloses a gas-liquid multistage separation device for a pump incoming flow gas-containing experiment. The separation device comprises a tank body and a first stage separation part, a second stage separation part and a third stage separation part which are arranged in the tank body, wherein the first stage separation part is arranged in the upper space of an inner cavity of the tank body; the first-stage separation part comprises a spiral pipe, a nozzle and a baffle plate, the second-stage separation part comprises an annular cavity, an inlet baffle plate, a gas-liquid separation plate and an outlet baffle plate, and the third-stage separation part comprises a liquid separation plate and a conical flow guide pipe with a large upper end and a small lower end. The invention has compact structure and high separation efficiency, and can effectively solve the problem of fluid degassing in experiments and engineering.
Description
Technical Field
The invention relates to the field of pump experiments and the technical field of chemical machinery, in particular to a gas-liquid multistage separation device for a pump incoming flow gas-containing experiment. Besides the separation of the gas which is not dissolved in water in the water, the separation of the gas which is not dissolved in the fluid in other fluids can also be satisfied.
Background
In an enterprise or a laboratory, the experimental medium for the pump experiment table is generally water and is recycled. Is sucked into the pump by the water storage tank and then is discharged into the water storage tank at the outlet of the pump. An incoming gas experimental gas filling device is generally located in the inlet pipe between the pump and the water storage tank. However, to ensure that the percentage of gas phase at the pump inlet is completely controlled by the gas filling means, it is necessary to ensure that the water in the storage tank does not contain excess gas due to the gas filling at the inlet.
We degas the aerated water before it flows into the water storage tank. The degassing device is positioned between the pump and the water storage tank. With the increase of the heat of gas-liquid two-phase flow research, the demand for gas-liquid separation devices is gradually increasing. The conventional separator is single in separating gas-liquid mixed fluid mainly comprising fluid. The existing gas-liquid separation devices mostly use only gravity separation to reduce the speed of fluid and then separate, so that the separation efficiency is not ideal, and the existing gas-liquid separation devices are large in size and not beneficial to laboratories with small occupied areas.
Disclosure of Invention
In order to solve the problems, the invention provides a gas-liquid multistage separation device for a pump inflow gas experiment. The invention consists of three stages of separation devices. By utilizing various separation principles, the fluid is subjected to gas-liquid separation not only when the speed is reduced, but also by utilizing the speed and the pressure of the fluid.
The technical scheme of the invention is as follows:
a gas-liquid multi-stage separation device for a pump incoming flow gas-containing experiment:
the tank comprises a tank body, a first-stage separation part, a second-stage separation part and a third-stage separation part, wherein the first-stage separation part, the second-stage separation part and the third-stage separation part are arranged in the tank body; the gas-liquid two phases sequentially flow through the first-stage separation part, the second-stage separation part and the third-stage separation part to complete gas-liquid separation.
The first-stage separation part mainly comprises a spiral pipe, nozzles and a baffle plate, the spiral pipe is of a pipeline structure arranged along a plane thread, the spiral pipe is provided with the nozzles at intervals, and the baffle plate is arranged near the port of each nozzle.
For each nozzle, the nozzle is connected to the outer wall of the upper part of the spiral pipe close to the center side, and the nozzle extends outwards along the radial direction of the circular section of the spiral pipe where the nozzle is located, so that the nozzle forms an angle of 45 degrees with the plane where the spiral pipe plane threads are located, and the nozzle forms an angle of 45 degrees with the tangential direction of the spiral pipe where the nozzle is located; the baffle plate is in an inverted L shape, and the inner side of the inverted L shape faces the nozzle.
The first stage separation part of the present invention combines centrifugal separation, baffling separation and wire mesh filtration, and utilizes the speed and pressure of fluid to separate gas from liquid. Wherein, centrifugal separation is carried out through the spiral pipe, and the opening direction of the spray pipe is specially arranged, thereby being beneficial to discharging bubbles from the inside of the spray pipe.
The port of the spiral pipe close to the center side is used as an outlet which is communicated with the inlet of the second-stage separation part through a connecting pipe; the port of the spiral pipe far away from the center side is used as an inlet, and the inlet is connected with an external water pumping source through a water pipe.
The second-stage separation part mainly comprises an annular cavity, an inlet baffle, a gas-liquid separation plate, an outlet baffle and an overflow port, and the circumference of the column on the inner wall of the tank body is a circle; two inlet baffles which are vertically and parallelly arranged are arranged between the inner wall and the outer wall of one side of the annular cavity, an inlet cavity space with an opening at the upper end is formed by the two inlet baffles and the inner wall and the outer wall of the annular cavity together, and a water tank inlet is formed in the inner wall of the annular cavity at the bottom of the inlet cavity space; an outlet baffle is arranged between the inner wall and the outer wall of the other side of the annular cavity, and an overflow port is formed in the inner wall of the annular cavity above the outlet baffle; the outlet baffle and the inner space of the annular cavity between the two inlet baffles form two arc-shaped cavities which are symmetrically arranged, a gas-liquid separation plate is arranged between the inner wall and the outer wall of each arc-shaped cavity, and the gas-liquid separation plate extends in the direction from the inlet baffles to the outlet baffles and is arranged in a downward inclined mode.
The top end of the inner wall of the annular cavity is higher than the top end of the inlet baffle, the top end of the inlet baffle is higher than the top end of the outlet baffle, and the top end of the outlet baffle is higher than the overflow port.
The top end of the gas-liquid separation plate is arranged between the top end of the inlet baffle and the top end of the outlet baffle, and the bottom end of the gas-liquid separation plate is lower than the top end of the outlet baffle.
The third stage separation part mainly comprises a liquid separation plate and a conical flow guide pipe with a large upper end and a small lower end, the center of the bottom surface of the tank body is provided with a tank outlet conical flow guide pipe, the lower end of the tank outlet conical flow guide pipe is fixedly connected with the tank body and is communicated with a liquid outlet, and the liquid separation plate is horizontally arranged above the upper end of the conical flow guide pipe.
And secondly, the application of the gas-liquid multistage separation device for the pump inflow gas-containing experiment in the multistage separation of gas-liquid two-phase fluid, wherein the gas in the fluid is insoluble in the liquid.
The invention has the beneficial effects that:
the invention can realize gas-liquid separation of fluid when the speed is reduced, and also can realize gas-liquid separation by utilizing the speed and the pressure of the fluid.
The helical tube of the present invention increases the time of the fluid in the first stage separation section, resulting in more complete separation.
The gas-liquid separation device disclosed by the invention is used for solving the problems that the liquid accounts for the main component (about 90 percent) and the existing gas-liquid separation device which accounts for the main component is less, and the invention supplements the vacancy of the separation device.
The invention provides convenience for gas-liquid two-phase research. Only one gas filling device and the device of the invention are added on the traditional test bed, so that the traditional test bed can be used for two-phase flow research.
The invention has compact structure and high separation efficiency, and can effectively solve the problem of fluid degassing in experiments and engineering.
Drawings
FIG. 1 is a side half sectional view of a gas-liquid separation device;
FIG. 2 is a first sectional top view of the gas-liquid separator;
FIG. 3 is a second sectional top view of the gas-liquid separator;
FIG. 4 is a partially circumferential expanded view of the annular tank and can;
FIG. 5 is a schematic view of the nozzle opening in one direction.
Fig. 6 is a second schematic view of the nozzle opening direction.
In the figure: the device comprises a top air outlet 1, a wire mesh filter 2, a tank cover 3, a spiral pipe 4, a nozzle 5, an annular water tank 6, an inlet baffle 7, a gas-liquid separation plate 8, a liquid separation plate 9, a conical guide plate 10, a baffle plate 11, an overflow port 12, an outlet baffle 13, a tank body 14, a water tank inlet 15, a connecting pipe 16, a water pipe 17 and a tank outlet 18.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in FIG. 1, the embodiment of the present invention comprises a tank 14, and a first stage separation part, a second stage separation part and a third stage separation part which are arranged in the tank 14, wherein the first stage separation part is arranged in the upper space of the inner cavity of the tank 14, the second stage separation part is arranged on the inner wall peripheral surface of the tank 14, the first stage separation part and the second stage separation part are connected through a water pipe 16, the third stage separation part is arranged at the bottom of the tank 14, a tank cover 3 of the tank 14 is provided with a top air outlet 1, and a wire mesh filter 2 is arranged at the top air outlet 1.
As shown in fig. 2, the first-stage separation part mainly comprises a spiral pipe 4, nozzles 5 and a baffle plate 11, wherein the spiral pipe 4 is a pipeline structure arranged along a plane thread, a plurality of nozzles 5 are arranged on the spiral pipe 4 at intervals, and the baffle plate 11 is arranged near the port of each nozzle 5.
As shown in fig. 5 to 6, for each nozzle 5, the nozzle 5 is connected to the outer wall of the upper portion of the spiral pipe 4 near the center side, and the nozzle 5 is arranged to extend outward in the radial direction of the circular section of the spiral pipe 4 where the nozzle 5 is located, so that the nozzle 5 is at 45 degrees to the plane where the spiral thread of the spiral pipe 4 is located, and the nozzle 5 is at 45 degrees to the tangential direction of the spiral pipe 4 where the nozzle 5 is located; the baffle 11 is in the shape of an inverted L, the inner side of which faces the nozzle 5.
The port of the spiral pipe 4 close to the center side is used as an outlet which is communicated with the inlet of the second-stage separation part through a connecting pipe 16; the end opening of the spiral pipe 4 far away from the center side is used as an inlet, and the inlet is connected with an external water pumping source through a water pipe 17.
As shown in fig. 1, 3 and 4, the second-stage separation part mainly comprises an annular cavity 6, an inlet baffle 7, a gas-liquid separation plate 8, an outlet baffle 13 and an overflow port 12, wherein the annular cavity 6 is formed by surrounding a circle of inner wall column circumference of a tank body 14 through plates, and the outer wall of the tank body 14 is used as the outer wall of the annular cavity 6; two inlet baffles 7 which are vertically and parallelly arranged are arranged between the inner wall and the outer wall of one side of the annular cavity 6, an inlet cavity space with an opening at the upper end is formed by the two inlet baffles 7 and the inner wall and the outer wall of the annular cavity 6, a water tank inlet 15 is formed in the inner wall of the annular cavity 6 at the bottom of the inlet cavity space, and the water tank inlet 15 is communicated with an outlet of the spiral pipe 4 through a connecting pipe 16;
an outlet baffle 13 is arranged between the inner wall and the outer wall of the other side of the annular cavity 6, the outlet baffle 13 and the two inlet baffles 7 are symmetrically arranged, and an overflow port 12 is formed in the inner wall of the annular cavity 6 above the outlet baffle 13;
the inlet baffle 7 and the outlet baffle 13 prevent the in-tank fluid from forming annular flow, the outlet baffle 13 forms two arc-shaped cavities which are symmetrically arranged with the inner space of the annular cavity 6 between the two inlet baffles 7, a gas-liquid separation plate 8 is arranged between the inner wall and the outer wall of each arc-shaped cavity, and the gas-liquid separation plate 8 extends in the direction from the inlet baffle 7 to the outlet baffle 13 and is arranged in a downward inclination mode.
The top end of the inner wall of the annular cavity 6 is higher than the top end of the inlet baffle 7, the top end of the inlet baffle 7 is higher than the top end of the outlet baffle 13, and the top end of the outlet baffle 13 is higher than the overflow port 12. The inlet baffle 7 is at a higher level than the outlet baffle 13 so that the fluid always flows from the inlet to the overflow 12, while the inlet baffle 7 slows down the flow in the coil 4.
The top end of the gas-liquid separation plate 8 is arranged between the top end of the inlet baffle 7 and the top end of the outlet baffle 13, and the bottom end of the gas-liquid separation plate 8 is lower than the top end of the outlet baffle 13. In specific implementation, the top end of the gas-liquid separation plate 8 can be as much as the top end of the overflow port 12, so as to ensure that water in the water tank basically flows to the overflow port 12 from the lower surface of the gas-liquid separation plate 8.
As shown in figure 1, the third-stage separation part mainly comprises a liquid separation plate 9 and a conical draft tube 10 with a large upper end and a small lower end, a tank outlet 18 is formed in the center of the bottom surface of a tank body 14, the tank outlet 18 is drained and flows out through the conical draft tube 10, the lower end of the conical draft tube 10 is fixedly connected with the tank body 14 and is communicated with a liquid outlet, and the liquid separation plate 9 is horizontally arranged above the upper end of the conical draft tube 10. A liquid collecting space is formed between the bottom surface of the tank body 14 and the conical draft tube 10. The conical flow deflector 10 is funnel-shaped and has a flow stabilizing effect on the discharged fluid.
The multistage separation process of the invention is as follows:
the gas-liquid two-phase mixed fluid firstly enters a spiral pipe 4, uniformly distributed nozzles 5 are arranged on the spiral pipe 4, and a baffle plate 11 is arranged on the nozzles. The number of nozzles and baffles is case specific.
Under the dual action of centrifugal force and gravity, because the liquid phase is heavier than the gas phase, and the bubbles follow the movement of the fluid, the liquid phase will flow along the spiral tube 4 biased to the lower outer side of the spiral tube 4, and the bubbles will flow along the spiral tube 4 biased to the upper inner side of the spiral tube 4 in a centrifugal manner, so the arrangement of the nozzle 5 is as shown in fig. 5 and 6. Thus, a part of gas and water are sprayed from the nozzle 5 under the action of flow velocity and pressure and are blocked by the baffle plate 11, the gas part flows upwards from the horizontal support plate of the baffle plate 11, and the water flows downwards along the vertical support plate of the baffle plate 11 into the liquid collecting tank space of the third-stage separation part under the action of gravity.
The main flow passing through the spiral pipe 4 enters the second-stage separation part through a pipeline, the inlet baffle 7 and the outlet baffle 13 mainly divide the annular water tank 6 into two parts, so that the internal flow firstly enters the arc-shaped cavity turning upwards over the top end of the inlet baffle 7 from the water tank inlet 15 and then flows into the arc-shaped cavities at two sides, then flows into the outlet baffle 13 from the arc-shaped cavity, and flows out of the liquid collecting tank space of the third-stage separation part from the overflow port 12 at the outlet baffle 13, thereby avoiding the annular flow in the annular water tank 6.
The inlet baffle plates 7 form an inlet chamber space which also slows down the flow from the coil 4 for gravity separation.
When fluid flows through the gas-liquid separation plate 8 of the arc-shaped cavity, gas rises along the gas-liquid separation plate 8 under the action of gravity, and water flows away from the lower side.
The liquid in the space of the liquid collecting tank flows out from the tank outlet 18 by crossing the conical draft tube 10, all the gas is discharged from the gas outlet 1 at the top, and the fluid after two-stage separation finally completes the final separation in the tank body 14 by using gravity.
Claims (7)
1. The utility model provides a multistage separator of gas-liquid that experimental pump incoming flow contains gas which characterized in that: the device comprises a tank body (14), a first-stage separation part, a second-stage separation part and a third-stage separation part, wherein the first-stage separation part, the second-stage separation part and the third-stage separation part are arranged in the tank body (14), the first-stage separation part is arranged in the upper space of an inner cavity of the tank body (14), the second-stage separation part is arranged on the circumferential surface of the inner wall of the tank body (14), the first-stage separation part and the second-stage separation part are connected through a connecting pipe (16), the third-stage separation part is arranged at the bottom of the tank body (14), a tank cover (3) of the tank body (14) is provided with a top air outlet (1), and a wire mesh filter (2) is arranged at the top air outlet (1); the gas-liquid two phases sequentially flow through the first-stage separation part, the second-stage separation part and the third-stage separation part to complete gas-liquid separation;
the first-stage separation part consists of a spiral pipe (4), nozzles (5) and a baffle plate (11), the spiral pipe (4) is of a pipeline structure arranged along a plane thread, the spiral pipe (4) is provided with the nozzles (5) at intervals, and the baffle plate (11) is arranged near the port of each nozzle (5); for each nozzle (5), the nozzle (5) is connected to the outer wall of the upper part of the spiral pipe (4) close to the center side, the nozzle (5) extends outwards along the radial direction of the circular section of the spiral pipe (4) where the nozzle (5) is located, so that the plane where the spiral threads of the nozzle (5) and the plane of the spiral pipe (4) are located forms an angle of 45 degrees, and the tangential direction of the nozzle (5) and the spiral pipe (4) where the nozzle (5) is located forms an angle of 45 degrees; the baffle plate (11) is in an inverted L shape, and the inner side of the inverted L shape faces the nozzle (5).
2. The gas-liquid multistage separation device for the pump incoming flow gas-containing experiment according to claim 1, characterized in that: a port of the spiral pipe (4) close to the center side is used as an outlet, and the outlet is communicated with an inlet of the second-stage separation part through a connecting pipe (16); the port of the spiral pipe (4) far away from the center side is used as an inlet, and the inlet is connected with an external water pumping source through a water pipe (17).
3. The gas-liquid multistage separation device for the pump incoming flow gas-containing experiment according to claim 1, characterized in that: the second-stage separation part consists of an annular cavity (6), an inlet baffle (7), a gas-liquid separation plate (8), an outlet baffle (13) and an overflow port (12); two inlet baffles (7) which are vertically and parallelly arranged are arranged between the inner wall and the outer wall of one side of the annular cavity (6), an inlet cavity space with an opening at the upper end is formed by the two inlet baffles (7) and the inner wall and the outer wall of the annular cavity (6) together, and a water tank inlet (15) is formed in the inner wall of the annular cavity (6) at the bottom of the inlet cavity space; an outlet baffle (13) is arranged between the inner wall and the outer wall of the other side of the annular cavity (6), and an overflow port (12) is formed in the inner wall of the annular cavity (6) above the outlet baffle (13); the outlet baffle (13) and the inner space of the annular cavity (6) between the two inlet baffles (7) form two arc-shaped cavities which are symmetrically arranged, a gas-liquid separation plate (8) is arranged between the inner wall and the outer wall of each arc-shaped cavity, and the gas-liquid separation plate (8) extends in the direction from the inlet baffle (7) to the outlet baffle (13) and is arranged in a downward inclination mode.
4. The gas-liquid multistage separation device for the pump incoming flow gas-containing experiment according to claim 3, characterized in that: the top end of the inner wall of the annular cavity (6) is higher than the top end of the inlet baffle (7), the top end of the inlet baffle (7) is higher than the top end of the outlet baffle (13), and the top end of the outlet baffle (13) is higher than the overflow port (12).
5. The gas-liquid multistage separation device for the pump incoming flow gas-containing experiment according to claim 3, characterized in that: the top end of the gas-liquid separation plate (8) is arranged between the top end of the inlet baffle (7) and the top end of the outlet baffle (13), and the bottom end of the gas-liquid separation plate (8) is lower than the top end of the outlet baffle (13).
6. The gas-liquid multistage separation device for the pump incoming flow gas-containing experiment according to claim 1, characterized in that: the third-stage separation part consists of a liquid separation plate (9) and a conical flow guide pipe (10) with a large upper end and a small lower end, a tank outlet (18) is formed in the center of the bottom surface of the tank body (14), the lower end of the conical flow guide pipe (10) is fixedly connected with the tank body (14) and communicated with the liquid outlet, and the liquid separation plate (9) is horizontally arranged above the upper end of the conical flow guide pipe (10).
7. Use of the device of any of claims 1-6, wherein: the application in the multistage separation of gas-liquid two-phase fluid, the gas in the fluid is insoluble in liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710374600.8A CN107050931B (en) | 2017-05-24 | 2017-05-24 | Gas-liquid multistage separation device for pump inflow gas-containing experiment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710374600.8A CN107050931B (en) | 2017-05-24 | 2017-05-24 | Gas-liquid multistage separation device for pump inflow gas-containing experiment |
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| CN107050931A CN107050931A (en) | 2017-08-18 |
| CN107050931B true CN107050931B (en) | 2022-09-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108786283B (en) * | 2018-08-31 | 2023-10-10 | 中冶北方（大连）工程技术有限公司 | Three-stage gas-liquid separation system for mineral separation and dehydration operation |
| CN113786648B (en) * | 2021-09-13 | 2022-07-29 | 武汉兴达高技术工程有限公司 | Electrolysis dehydrogenation device and integrated cabinet type large-scale chlorine production brine type sodium hypochlorite generator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201026464Y (en) * | 2007-04-13 | 2008-02-27 | 王建军 | Air water cyclonic separating apparatus |
| CN204656167U (en) * | 2015-01-23 | 2015-09-23 | 安瑞科(蚌埠)压缩机有限公司 | gas-liquid separator |
| CN206965209U (en) * | 2017-05-24 | 2018-02-06 | 浙江理工大学 | A kind of gas-liquid multi-stage separation device of pump incoming gassiness experiment |
-
2017
- 2017-05-24 CN CN201710374600.8A patent/CN107050931B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201026464Y (en) * | 2007-04-13 | 2008-02-27 | 王建军 | Air water cyclonic separating apparatus |
| CN204656167U (en) * | 2015-01-23 | 2015-09-23 | 安瑞科(蚌埠)压缩机有限公司 | gas-liquid separator |
| CN206965209U (en) * | 2017-05-24 | 2018-02-06 | 浙江理工大学 | A kind of gas-liquid multi-stage separation device of pump incoming gassiness experiment |
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