RU63244U1 - GAS VORTEX VALVE SEPARATOR - Google Patents

Abstract

The utility model is designed to capture fine and aerosol liquid and solid particles from a gas stream, and is used in the oil, gas, chemical and other industries. The utility model provides an increase in the average curved path of the gas-liquid flow around the separation package without increasing the external dimensions of the separator and the flow rate at the outlet of the deflector (and, therefore, without increasing the hydraulic resistance of the deflector). This leads to an increase in the time of action of centrifugal forces on the particles of the specified flow moving inside the separator, which helps to increase the separation efficiency in the zone between the separation package and the separator body. The separator contains a vertical cylindrical body, upper and lower bottoms, inlet, outlet and drain pipes, a deflector with a reflective plate, a separation bag, a false bottom, and at least one horizontal plate fixed without a gap on the inner wall of the separator body in the area between the separation bag and body. In this case, one of the ends of the horizontal plate is placed near the outlet of the deflector, and the plate itself is made in the form of a part of the ring. The width of the horizontal plate is greater than the width of the outlet from the deflector and less than the distance from the separation package to the separator body. 7 c.p., 5 ill.

Description

The utility model is designed to capture fine and aerosol liquid and solid particles from a gas stream, and is used in the oil, gas, chemical and other industries.

Among gas separators, for example, a separator for gas purification is known (RF patent for invention No. 2136350, IPC 6 B01D 45/12, 1999 [1]), comprising a vertical cylindrical body, inlet and outlet pipes, a deflector, a confuser, a separation element, a reflector and the puck. A pipe is mounted in the internal hole of the reflector, which enters with an annular gap one end into the outlet pipe, and the other into the confuser hole.

The disadvantage of this device is the complex and ineffective construction of the gas-liquid mixture inlet, which leads to the fact that the liquid separated from the inlet gas-liquid mixture when passing through the inlet pipe along the curved plate (7) and the vertical plate (16) through the gutters is again largely captured by the incoming mixture from the edge of the vertical plate (15).

Also known is a centrifugal separator (USSR AS for invention No. 411271, IPC F22B 37/32, B01D 45/12, 1974 [2]), comprising a housing with a steam outlet pipe on which a screw blade is mounted and a radial inlet pipe equipped with a spherical guide placed at an angle equal to the angle of inclination of the screw blade. Also known is the Melkumov vortex chamber (USSR AS for invention No. 1113155, IPC B01D 45/12, B01D 50/00, 1984 [3]), comprising a casing, a tangential inlet channel with a multi-helical screw guide attached to it, the peripheral edges of which located below the internal, axial exhaust pipe, a collection chamber, a central exhaust pipe with a conical bell, a shell located between the pipe and the casing. The upper part of the shell is attached to the peripheral edges of the last turn of the screw guide, located at a distance from the walls of the casing. A separator is also known (RF patent for the invention No. 2176056, IPC7 F25B 43/02, 2001 [4]), comprising a vertical casing with a side inlet fitting and a gas outlet fitting, a swirl coaxially mounted in it in the form of a glass with a spiral made on the outer surface turn, At the same time, at the beginning of the turn, a plate is additionally mounted attached to the surface of the turn part

the vertical generatrix of the cup with the formation of a partition, and the swirl is installed in the housing so that the plate-partition is located at the level of the gas inlet fitting and is offset from the vertical axis of the latter by the value of its inner radius R in the direction opposite to the direction of the turn, and is additionally fixed at the bottom of the swirl a triangular flange with cut off vertices along the inner diameter of the housing with the formation of slots for the passage of gas and a Central hole.

The disadvantage of the technical solutions indicated in the previous paragraph is the presence of guides (turns) installed across the entire width of the internal space between the housing and the elements located in the center of the housing. This leads to a narrowing of the effective load range on the separator: with a significant increase in the flow rate of the gas-liquid mixture at the inlet, the flow is "blocked", which, in turn, leads to a significant increase in hydraulic resistance in the region of the guides (turns) and, as a consequence, to an increase in the total difference pressure on the separator. Similar processes occur in the above design and when a liquid plug gets into the separator, which is typical for oil and gas production processes. In this case, the pressure drop across the separator is much larger compared to the gas medium due to the fact that the density of the liquid is several orders of magnitude higher than the density of the gas. A disadvantage is also the helical (spiral) shape of such guides (turns), leading to a complication of the structure, a complication of its manufacture. This also leads to the difficulty of varying the parameters of the separator, since to change the flow path along such a guide (the number of revolutions made by the flow), it is necessary to significantly change the design of the guide, changing either the number of turns or the step of the turns. Moreover, an increase in the aforementioned flow path by reducing the pitch of the turns invariably leads to a significant decrease in throughput. If the indicated increase in the path is made by increasing the number of turns, then this leads to an increase in the height of the separator.

According to the set of essential features and the intended use, the closest technical solution to the claimed vortex type gas separator is the group of technical solutions of the same name according to the RF patent for utility model No. 58379 (IPC 8 B01D 45/16; B01D 45/02, 2006 [6]). According to the first version of patent No. 58379, the separator contains a vertical

a cylindrical body, upper and lower bottoms, an inlet, a drain and a vertical outlet, a deflector, a pickup pocket, a separation bag consisting of vertical flat curved separation plates, which form slotted channels in the overlap zone, a false bottom, a trap pocket located in the upper parts of the separation bag, a horizontal partition located above the separation bag, and cone-shaped guide confusers located mainly above the horizontal partition between the separation ion pack and outlet pipe and coaxially with them, while the guide confusers are located one above the other with partial overlap, and form annular gaps in the overlap zone. In this case, the drainage tube hydraulically connects the space formed by confusers, the upper part of the vertical housing, the upper bottom and the horizontal partition with the lower part of the separator. According to the second version of patent No. 58379, the separator comprises a vertical cylindrical body, upper and lower bottoms, an inlet, a drain and a horizontal outlet, a deflector, a pickup pocket, a separation bag consisting of vertical flat curved separation plates that form slotted channels in the overlap zone, false a bottom, a pocket-trap located in the upper part of the separation bag, a horizontal partition located above the separation bag, and a thin-layer chipper containing coaxially located ennye above the horizontal partition plate of different size cone, and an annular hydraulic pocket. In this case, the drainage tube hydraulically connects the hydraulic pocket to the bottom of the separator.

A disadvantage of the group of said separators is the design of each separator in the space between the separation bag and the inner wall of the housing, in which the gas-liquid stream exiting the deflector passes a small path along the inner wall of the housing in a spiral downward direction (the main part of the flow passes no more than one revolution) until the lower edge of the separation package. This leads to insufficient efficiency of the separation of the gas-liquid flow in this part, since part of the liquid particles does not have time to reach the wall of the separator body in such a short way, and is transported with the flow to the separation bag and further to the remaining separation stages, increasing their loading and reducing efficiency separator as a whole.

The technical problem to be solved by the claimed utility model is to increase the efficiency of using the space of the separator between the separation bag and the housing by increasing the average path traveled by the gas-liquid flow inside the separator from the outlet from the deflector to getting into the separation bag.

The technical result provided by the claimed utility model is to increase the average curvilinear path of the gas-liquid flow around the separation package without increasing the external dimensions of the separator and the flow rate at the outlet of the deflector (and, therefore, without increasing the hydraulic resistance of the deflector). This leads to an increase in the time of action of centrifugal forces on the particles of the specified stream moving inside the separator. This in turn leads to an increase in the number of liquid particles and solids reaching the cylindrical wall of the separator body, that is, removed from the stream, which improves the separation efficiency in the zone between the separation bag and the separator body.

The essence of the utility model is that the gas vortex-type separator comprises a vertical cylindrical body, upper and lower bottoms, an inlet, outlet and drain pipe, a deflector with a reflective plate, a separation bag, a false bottom, and at least one horizontal plate fixed without the gap on the inner wall of the separator housing in the area between the separation package and the housing. In this case, one of the ends of the horizontal plate is placed near the outlet of the deflector, and the plate itself is made in the form of a part of the ring. The width of the horizontal plate is greater than the width of the outlet from the deflector and less than the distance from the separation package to the separator body.

The horizontal plate is preferably located at the level of the lower edge of the outlet of the deflector and is made in the form of a segment of the ring, the width of which is equal to the width of the outlet of the deflector.

It is permissible to carry out a separator with two horizontal plates. In this case, the first horizontal plate is placed at the level of the lower edge of the separation package, and the second is at the level of the middle of the separation package.

It is advisable to perform a horizontal plate tapering in width to its distal end along the gas flow.

It is possible to arrange the outlet pipe vertically, and the separator to be additionally equipped with a horizontal partition located above the separation bag and cone-shaped guide confusers located mainly above the horizontal partition between the separation package and the outlet pipe and coaxially with the separation package and the outlet pipe. In this case, the guide confusers must be placed one above the other with partial overlap, with the formation of annular gaps in the overlap zone. In this case, the drainage tube must hydraulically connect the space formed by the confusers, the upper part of the vertical housing, the upper bottom and the horizontal partition with the lower part of the separator. The end of the drainage tube may be provided with a hydraulic shutter.

It is also possible to arrange the outlet pipe horizontally, and to provide the separator with a horizontal partition located above the separation bag and a thin-layer chipper containing conical plates of different sizes coaxially located above the horizontal partition and an annular hydraulic pocket. In this case, the drainage tube located in the catching pocket must hydraulically connect the hydraulic pocket to the bottom of the separator. The end of the drainage tube may be provided with a hydraulic shutter.

The separation package is preferably cylindrical in shape and placed in the separator housing with a displacement in the direction from the deflector by a distance equal to half the average distance from the deflector to the separator body.

The figure 1 shows a diagram of a separator, a longitudinal section (section BB of figure 2); figure 2 - the installation area of the horizontal plate; figure 3 is a diagram of a separator, a cross section (section aa of figure 1); figure 4 - diagram of the separator according to examples 2 and 5; figure 5 is an example 6 of the execution of the separator.

The gas vortex type separator according to option 1 (Figs. 1, 3) contains a vertical cylindrical body 1, upper 2 and lower 3 bottoms, inlet 4, outlet 5 and drain 6 nozzles, a deflector 7 with a reflective plate 8, at least one horizontal plate 40, separation bag 10, false bottom 11.

The inlet pipe 4 is rigidly fixed in the cylindrical housing 1 of the separator and is located in it with an offset, so that its axis lies in the plane of the cross section of the housing 1 and does not intersect the axis of the housing 1.

The deflector 7 is located at the inlet pipe 4 and is designed to form a rotational (vortex) movement of the gas stream inside the separator. The deflector 7 also prevents the flow of gas into the axial zone of the separator without prior separation.

The horizontal plate 40 (figure 2, 3) is made in the form of a part of the ring with an outer diameter equal to the inner diameter of the separator housing 1 and is rigidly fixed in the separator housing 1. One of the ends of the horizontal plate 40 is located near the outlet of the deflector 7. The width of the horizontal plate 40 is less than the width of the corridor between the separation bag 10 and the separator body 1, that is, less than the distance from the separation bag 10 to the wall of the housing 1, and is greater than or equal to the exit width deflector. A bypass gap 41 is formed between the inner edge of the horizontal plate 40 and the separation bag 10.

The inner wall of the housing 1, the deflector 7 and the reflective plate 8 form a catching pocket 14. The pocket 14 is designed to divert moving fluid and mechanical impurities from the vortex stream, pressed by centrifugal force to the inner wall of the separator housing 1, and transport them to the lower storage part of the separator.

A drain pipe 6 is located in the lower bottom 3 of the separator.

The separation package 10 is cylindrical in shape and contains flat curved separation plates 15 located in its forming surface and forming identical and constant slotted channels 16 in the lap zone. The flat curved plates 15 are rigidly fixed in the lower part to the lower axial disk 17. The disk 17 is rigidly fixed to the M fingers 18, the ends of which are located without a gap in the holes of the false bottom 11, located with an annular gap to the vertical housing 1, and rigidly fixed to the housing 1 using the G-image s plate 19. In this case, the separation pack 10 is disposed in the axial zone of the separator so that the axis of the separation pack 10 is parallel to the axis of the cylindrical body 1 and the separator is displaced with respect to it.

Above the lower axial disk 17 is located the upper axial disk 24, connected to it by means of radial plates 25. The plates 25 are also

designed to exclude the rotational effect of the gas stream below the zone of their location.

Examples of specific performance.

Example 1

The width of the horizontal plate 40 is equal to the width of the outlet of the deflector. The plate 40 is installed at the lower edge of the outlet of the deflector 7.

The axis of the separation package 10 is offset relative to the axis of the separator body 1 in the direction from the deflector 7 by a distance equal to half the average distance from the deflector 7 to the separator body 1. Flat curved plates 15 are rigidly fixed in the upper part to the upper bottom 2.

The ends of the flat curved plates 15 are directed in opposite directions tangentially to circles located in the cross section of the separator, one of which is described around the separation package 10, and the other is inscribed in the separation package 10.

The number of fingers 18 is one (M = 1).

An annular gap is formed in the upper part of the separation package 10 between the lower outer surface of the outlet pipe 5 and the inner surface of the upper part of the flat curved plates 15, which together with the lower surface of the upper bottom 2 forms a pocket-trap 23.

Example 2

The axis of the separation package 10 is offset relative to the axis of the separator body 1 in the direction from the deflector 7 by a distance equal to half the average distance from the deflector 7 to the separator body 1. Flat curved plates 15 are rigidly fixed in the upper part to the upper bottom 2.

The width of the outlet of the deflector is equal to half the distance from the separation package 10 to the wall of the housing 1 of the separator. The width of the horizontal plate 40 is one and a half times greater than the width of the outlet of the deflector. Installed two horizontal plate 40 (figure 4). One is at the level of the lower edge of the separation bag 10, and the second is at the middle of the separation bag 10.

The number of fingers 18 is four (M = 4).

Example 3

For transportation to the inner wall of the housing 1 of the separator of liquid particles deposited and coagulated on a horizontal surface

plate 40, the latter is made narrowing in width to its distal end along the gas flow (figure 2).

Example 4

For the purpose of varying the average length of the curved path traveled by the particles of gas-liquid flow around the separation package 10 in the inventive separator can be applied three approaches. The first is to vary the width of the horizontal plate 40. In this case, the execution of the plate 40 of increased width leads to an increase in the length of the specified path, and the execution of the plate 40 of reduced width leads to a decrease in the path length. The second approach is to change the number of horizontal plates 40. With an increase in the number of horizontal plates 40 installed in the separator, the length of the path indicated at the beginning of the paragraph increases, and vice versa, with a decrease in the number of installed plates 40, the length of the path decreases. The third approach is to combine the first two approaches.

Example 5

For the purpose of collecting liquid film at the outlet, the separator (Fig. 4) further comprises a horizontal partition 9 rigidly fixed in the housing 1. In this case, the inlet pipe 4 is located below the horizontal partition 9. The flat curved plates 15 of the separation package 10 are rigidly fixed in the upper part to the horizontal partition 9.

In the upper part of the separator housing 1, mainly above the horizontal partition, cone-shaped guide confusers 12 are located. The confusers 12 are located coaxially with the separation bag 10 and the vertical outlet pipe 5 located in the upper bottom 2. The confusers 12 are located one above the other with partial overlap. The lower confuser is located in the outlet of the horizontal plate 9. The upper confuser is located under the outlet 5 and partially overlaps it. In the zone of mutual overlap and overlap with the outlet pipe, the confusers 12 form annular gaps 20, located opposite the movement of the gas stream, and designed to drain the film fluid from the surface of the confusers 12 into the upper storage chamber 21 of the separator. The separator contains two guides of the confuser 12.

In the upper part of the separation bag 10 between the lower outer surface of the lower confuser 12 and the inner surface of the upper part

An annular gap is formed of the flat curved plates 15, which together with the lower surface of the horizontal plate 9 forms a pocket-trap 23.

The separator also contains a vertical drainage tube 22 located in the pocket 14. One end of the drainage tube 22 is located in the drainage hole of the horizontal plate 9, and the other end is located under the false bottom 11.

Example 6

For the purpose of capturing a liquid film at the outlet when the outlet nozzle is horizontally placed, the separator (Fig. 5) further comprises a horizontal partition 9 rigidly fixed in the housing 1. In this case, the inlet nozzle 4 is located below the horizontal partition 9. The flat curved plates 15 of the separation bag 10 are rigidly fixed to top to horizontal partition 9.

In the upper part of the separator body 1 there is a thin-layer chipper (not indicated) containing coaxially arranged cone-shaped plates 28 of different sizes and an annular hydraulic pocket 29. The plates 28 are aligned with the separation package 10 and form annular gaps 20.

The outlet pipe 5 is located horizontally and is rigidly fixed in the cylindrical housing 1 of the separator between the horizontal partition 9 and the hydraulic pocket 29.

The separator also contains a vertical drainage tube 22 located in the pocket 14, and passing through the hole in the horizontal partition 9. One end of the drainage tube 22 is located in the drainage hole of the annular hydraulic pocket 29, and the other end is located under the false bottom 11. The lower end of the drainage tube 22 equipped with a hydraulic shutter 26.

In the hole of the horizontal partition 9, located coaxially with the separation package 10, there is a pipe 30 rigidly connected to the horizontal partition 9. In the upper part of the separation package 10, an annular gap is formed between the outer surface of the pipe 30 and the inner surface of the upper part of the flat curved plates 15, which together with the lower surface of the horizontal plate 9 formed a pocket-trap 23.

The implementation of the structural elements of the claimed utility model is not limited to the above examples.

The inventive gas separator vortex type operates as follows.

The gas to be cleaned (crude gas) is fed into the apparatus through the inlet pipe 4. Installing the inlet pipe horizontally offset relative to the center line of the housing 1 allows you to create a sliding impact on the deflector 7.

The deflector 7 smoothly changes the direction of gas movement, and forms a vortex gas movement around the separation package 10.

The horizontal plate 40 creates an obstacle to the expansion of the gas-liquid stream exiting from the deflector, thereby increasing the average path length of this stream along the inner wall of the housing 1 around the separation package 10. Moreover, the presence of a bypass gap 41 facilitates the drainage of liquid into the lower part of the separator body to the drain pipe 6 when its cork flows into the separator, preventing the complete penetration of this liquid into the internal cavity of the separation package 10. In addition, with a significant increase in flow and the gas-liquid mixture through the separator, the presence of an overflow gap contributes to a more complete distribution of the gas-liquid flow on the inner generatrix of the separator housing 1, which prevents the gas-liquid mixture from instantly entering the internal cavity of the separation package, which increases the efficiency of the separator.

In the space formed by the wall of the housing 1 and the separation package 10, the bulk of the liquid and mechanical impurities are released from the gas stream. Liquid droplets and a mechanical impurity are discarded by centrifugal force on the walls of the separator housing 1 and, under the influence of gravitational forces, move along this wall in a downward spiral in the direction of rotation of the gas stream. At the same time, part of the liquid and mechanical impurities enter the trap pocket 14 and flow down its walls to the false bottom 11. When reaching the plane of the false bottom 11, the liquid and mechanical impurities (trapped and not caught in the trap pocket 14) pass through the annular gap 27 between the housing 1 and the false bottom 11, and are transported to the drain pipe 6.

A finely divided droplet liquid that has not settled on the wall of the housing 1 enters the outer surface of the flat curved plates 15 and is transported by a gas stream through the slotted channels 16 to their inner

surface. Descending along the inner surface of the plates 15, liquid particles, approaching the lower edges of these plates 15, slide off them and fall on the surface of the false bottom 11, from where they are transported to the drain pipe 6 through the annular gap 27 between the housing 1 and the false bottom 11.

The cleaned gas stream is sent to the outlet pipe 5.

In the claimed utility model, the claimed technical result: an increase in the average curved path of the gas-liquid flow around the separation package without increasing the external dimensions of the separator and the flow rate at the outlet of the deflector (and, therefore, without increasing the hydraulic resistance of the deflector) is achieved due to the fact that the separator contains at least at least one horizontal plate fixed without a gap on the inner wall of the vertical cylindrical separator body in the area between the separation ketom and the housing, one of the ends of the horizontal plate is situated near the exit of the deflector, and the plate itself is made in the form of a part ring. The width of the horizontal plate is greater than the width of the outlet from the deflector and less than the distance from the separation package to the separator body. Moreover, as in the prototype, the separator contains the upper and lower bottoms, inlet, outlet and drain pipes, a false bottom, and the deflector is equipped with a reflective plate.

Simulation of the claimed separator using COSMOSFloWorks 2004 SP1 software manufactured by Structural Research & Analysis Corporation (SRAC), Santa Monica, Canada (http://www.cosmosm.com.http: //www.solidworks.com/pages/ products / cosmos / cosmosfloworks.html) confirmed the achievement of the claimed technical result due to the presence of the above structural elements in the separator. The author made a prototype of the inventive separator, laboratory studies of which also confirmed the achievement of the claimed technical result.

The inventive gas vortex-type separator can be manufactured at a machine-building enterprise.

INFORMATION SOURCES.

1. RF patent for the invention No. 2136350, IPC 6 B01D 45/12, 1999.

2. USSR author's certificate for the invention No. 411271, IPC F22B 37/32, B01D 45/12, 1974.

3. USSR author's certificate for the invention No. 1113155, IPC B01D 45/12, B01D 50/00, 1984.

4. RF patent for the invention No. 2176056, IPC 7 F25B 43/02, 2001.

5. RF patent for utility model No. 58379, IPC 8 B01D 45/16; B01D 45/02, 2006.

Claims (8)

1. A gas vortex type separator comprising a vertical cylindrical body, upper and lower bottoms, an inlet, outlet and drain pipe, a deflector with a reflective plate, a separation bag, a false bottom, characterized in that the separator further comprises at least one horizontal plate fixed without a gap on the inner wall of the separator housing in the area between the separation package and the housing, moreover, one of the ends of the horizontal plate is located near the outlet of the deflector, and the plate itself is made in the shape of the ring part, while the width of the horizontal plate is greater than the width of the outlet from the deflector and less than the distance from the separation package to the separator body. 2. The gas vortex type separator according to claim 1, characterized in that the horizontal plate is placed at the level of the lower edge of the outlet of the deflector and is made in the form of a ring segment, the width of which is equal to the width of the outlet of the deflector. 3. The gas vortex type separator according to claim 1, characterized in that it contains two horizontal plates, the first being placed at the level of the lower edge of the separation bag, and the second at the middle of the separation bag. 4. The gas vortex type separator according to claim 1, characterized in that the horizontal plate is made narrowing in width to its distal end along the gas stream. 5. The gas vortex type separator according to claim 1, characterized in that the outlet pipe is located vertically, and the separator further comprises a horizontal partition located above the separation package, and cone-shaped guide confusers located mainly above the horizontal partition between the separation package and the output pipe and coaxially with a separation bag and outlet pipe, while the guide confusers are located one above the other with partial overlap, and form in the overlap zone evye gaps, wherein the separator further comprises a drain tube fluidly connecting the space formed by the converging tube, the upper part of the vertical body, an upper horizontal wall and a bottom with the lower part of the separator. 6. The gas vortex type separator according to claim 1, characterized in that the outlet pipe is located horizontally, and the separator further comprises a horizontal baffle located above the separation bag, and a thin layer bump containing cone-shaped plates of different sizes coaxially located above the horizontal baffle, and an annular hydraulic pocket, and the separator also contains a drainage tube located in the pickup pocket and hydraulically connecting the hydraulic pocket to the bottom of the sep a radiator. 7. The gas vortex type separator according to claim 5 or 6, characterized in that the lower end of the drainage tube is equipped with a hydraulic shutter. 8. The gas vortex type separator according to claim 1, characterized in that the separation bag is cylindrical in shape and is located in the separator body with a shift in the direction from the deflector by a distance equal to half the average distance from the deflector to the separator body.