CN217220279U - Gas-water-oil three-phase separation tank - Google Patents

Abstract

The utility model provides a gas-water-oil three-phase separating tank, which comprises a tank body, a partition plate, a first communicating pipe, a first baffle plate and a second baffle plate; the clapboard is arranged in the tank body and divides the tank body into an upper area and a lower area, wherein the upper area is a gas phase area, and the lower area is a liquid phase area; the first baffle and the second baffle are arranged in the liquid phase area and are sequentially arranged at the bottom of the tank body along the axial direction of the tank body, and the liquid phase area is sequentially divided into a water phase area, a water-oil mixing area and an oil phase area; the upper end of the first baffle plate and the upper end of the second baffle plate are spaced from the partition plate by a preset distance, and the height of the first baffle plate is lower than that of the second baffle plate; the first communicating pipe is arranged in the water phase area, one end of the first communicating pipe is connected to the partition plate and communicated with the gas phase area, and the other end of the first communicating pipe is spaced from the inner wall of the bottom of the tank body by a preset distance. The utility model discloses can reduce the influence of gaseous phase to liquid phase interface, make the oil phase aqueous phase can stable separation, promote the actual rate of recovery of oil phase, reduce the gaseous phase simultaneously and smuggle oil volume secretly, reduce the adverse effect to coarse coal gas aftertreatment system.

Description

Gas-water-oil three-phase separation tank

Technical Field

The utility model belongs to the technical field of an air water oil three-phase separation technique and specifically relates to an air water oil three-phase knockout drum is related to.

Background

The oil product of coal hydro-gasification is produced in three parts according to different condensation temperatures, wherein crude benzene oil is used as a product recovered after crude coal gas is cooled to 40 ℃, accounts for 50% of the total oil yield, contains fine chemicals such as benzene and naphthalene, and has high added value.

The existing crude benzene oil recovery adopts a gas, water and oil horizontal three-phase separation tank (shown in figure 2), a baffle (4 ') with a certain height is arranged in the middle of the bottom of a tank body (1'), crude gas carries condensed water and crude benzene oil to enter from an inlet (11 ') at the top of the tank body, and then the condensed water and crude benzene oil are discharged from an outlet (12') at the top of the tank body, and as the gas velocity of the crude gas inlet (11 ') is higher (-6 m/s), the interface of a liquid phase region (3') is completely exposed in a gas phase region (2 '), and no liquid phase interception internal part is arranged in the tank body (1'), gas is easy to carry a water phase and an oil phase, the liquid phase interface is unstable, gas-liquid separation and oil-water separation effects are poor, the actual recovery rate of crude benzene oil is reduced, and adverse effects are caused to a post-treatment system of crude gas.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a gas-water-oil three-phase separation device, which comprises a tank body, a baffle plate, a first communicating pipe, a first baffle plate and a second baffle plate; the partition plate is arranged in the tank body and divides the tank body into an upper area and a lower area, wherein the upper area is a gas phase area, and the lower area is a liquid phase area; the first baffle and the second baffle are arranged in the liquid phase area and are sequentially arranged at the bottom of the tank body along the axial direction of the tank body, and the liquid phase area is sequentially divided into a water phase area, a water-oil mixing area and an oil phase area; the upper ends of the first baffle plate and the second baffle plate are spaced from the partition plate by a preset distance, and the height of the first baffle plate is lower than that of the second baffle plate; first communicating pipe sets up in the aqueous phase district, first communicating pipe one end is connected on the baffle and with gaseous phase district intercommunication, the other end with interval default distance between the internal wall of jar body bottom.

Preferably, a second communicating pipe is arranged in the gas phase area; one end of the second communicating pipe is connected to the partition plate and can be communicated with the oil phase area, and a preset distance is arranged between the other end of the second communicating pipe and the inner wall of the upper portion of the tank body.

Preferably, the gas phase area is provided with a gas inlet and a gas outlet; the air inlet is arranged at one end of the top of the tank body, which corresponds to the first communication pipe in position, and the air outlet is arranged at the other end of the top of the tank body.

Preferably, still set up the third baffle under the air inlet, the third baffle is connected jar body upper portion, the third baffle with form the contained angle between the baffle, the third baffle is relative the perpendicular projection of air inlet covers completely the air inlet.

Preferably, a wire mesh is arranged below the air outlet, and the wire mesh completely covers the air outlet.

Preferably, the height of the first baffle is higher than the preset distance between the other end of the first communicating pipe and the inner wall of the bottom of the tank body.

Preferably, the water-oil mixing zone is provided with a water phase outlet, and the water phase outlet is arranged at the bottom of the tank body.

Preferably, the oil phase region is provided with an oil phase outlet, and the oil phase outlet is arranged at the bottom of the tank body.

Preferably, the distance from the lowest end of the third baffle to the inner wall of the top of the tank body is 1/5-1/3 of the height of the gas phase zone.

Preferably, the distance between the other end of the first connecting pipe and the inner wall of the bottom of the tank body is 1/8-1/4 of the height of the liquid phase zone.

The utility model provides a gas-water-oil three-phase separating tank, which comprises a tank body, a baffle plate, a first communicating pipe, a first baffle plate and a second baffle plate; the partition plate is arranged in the tank body and divides the tank body into an upper area and a lower area, wherein the upper area is a gas phase area, and the lower area is a liquid phase area; the first baffle and the second baffle are arranged in the liquid phase area and are sequentially arranged at the bottom of the tank body along the axial direction of the tank body, and the liquid phase area is sequentially divided into a water phase area, a water-oil mixing area and an oil phase area; the upper ends of the first baffle plate and the second baffle plate are spaced from the partition plate by a preset distance, and the height of the first baffle plate is lower than that of the second baffle plate; first communicating pipe sets up in the aqueous phase district, first communicating pipe one end is connected on the baffle and with the gaseous phase district intercommunication, the other end with the interval is predetermine the distance between the jar body bottom inner wall. The utility model discloses a be provided with the internals that do benefit to the three-phase separation, can reduce the influence of gaseous phase to the liquid phase interface, make the separation that oil phase and aqueous phase can be stable, promote the actual rate of recovery of oil phase, reduce the gaseous phase simultaneously and smuggle the oil volume secretly, reduce the adverse effect to coarse coal gas after-treatment system.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic view of the overall structure of the separation tank of the present invention;

FIG. 2 is a schematic structural view of a conventional separation tank;

in the figure, 1, a tank body, 2, a partition plate, 3, a gas phase region, 4 and a liquid phase region;

11. the device comprises a first baffle plate, a second baffle plate, a first baffle plate 12, a second baffle plate 13, an air inlet 14, an air outlet 15, a water phase outlet 16, an oil phase outlet 17, a third baffle plate 18, a wire mesh 21, a first communicating pipe 22, a second communicating pipe 41, a water phase area 42, a water-oil mixing area 43 and an oil phase area;

1 ', a tank body, 2', a gas phase area, 3 ', a liquid phase area, 4', a baffle plate, 11 ', a gas inlet, 12', a gas outlet, 13 ', a water phase outlet, 14' and an oil phase outlet.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

Referring to fig. 1, the gas-water-oil three-phase separation tank disclosed by the present invention comprises a tank body 1, a partition plate 2, a first communication pipe 21, a first baffle 11 and a second baffle 12; the clapboard 2 is arranged in the tank body 1 and divides the tank body 1 into an upper area and a lower area, wherein the upper area is a gas phase area 3, and the lower area is a liquid phase area 4; the first baffle 11 and the second baffle 12 are arranged in the liquid phase zone 4, are sequentially arranged at the bottom of the tank body 1 along the axial direction of the tank body 1, and sequentially divide the liquid phase zone 4 into a water phase zone 41, a water-oil mixing zone 42 and an oil phase zone 43; a preset spacing distance is reserved between the first baffle plate 11 and the baffle plate 2 and between the second baffle plate 12 and the baffle plate 2, and the height of the first baffle plate 11 is lower than that of the second baffle plate 12; the first communicating pipe 21 is arranged in the water phase area 41, one end of the first communicating pipe 21 is connected to the partition board 2 and communicated with the gas phase area 3, and the other end of the first communicating pipe 21 is spaced from the inner wall of the bottom of the tank body 1 by a preset distance.

It should be understood that the present invention realizes the division of the gas phase region and the liquid phase region through the partition board 2, can avoid the complete exposure of the liquid phase region in the gas phase region, can reduce the condition that the gas phase carries the water phase and the oil phase, and makes the liquid phase interface more stable; the water phase area 41, the water-oil mixing area 42 and the oil phase area 43 are arranged, so that the water and the oil can be better separated; the utility model discloses a device can promote the actual rate of recovery of oil phase, reduces the adverse effect to coarse coal gas aftertreatment system.

In the embodiment, the distance between the lower surface of the partition board 2 and the inner wall of the bottom of the tank body 1 is 1/4-3/4, preferably 1/2 of the height of the tank body 1. In the embodiment, the first communication pipe 21 is preferably a cylindrical vertical pipe, is positioned at the lower part of the partition board 2, has a horizontal position right below the partition board 2, and has the distance between the other end of the first communication pipe 21 and the inner wall of the bottom of the tank body 1 being 1/8-1/4 of the height of the liquid phase region 4, preferably 1/6. The first communication pipe 21 may be provided in plural, preferably 1. Wherein the inner diameter of the first communication pipe 21 is set to a certain range value in order to maintain a certain thickness of the liquid phase on the partition plate 2 while smoothly flowing into the aqueous phase zone 41. The free end of the first communication pipe 21 is close to the lower surface of the tank body 1, so that the impact of a liquid phase entering the first communication pipe 21 on a stable oil-water interface is reduced; because the density of crude benzene oil is less than that of water, when the water phase area 41 is filled with water, the water is filled with oil, the oil phase in the newly falling oil-water mixture slowly overflows to the water-oil mixing area 42 through the first baffle 11, so as to realize the primary separation of the water phase and the oil-water mixture, when the interface height of the oil-water mixture reaches the height of the second baffle 12, the oil phase slowly overflows to the oil phase area 43, the liquid level heights of the water-oil mixing area 42 and the oil phase area 43 are respectively monitored through a level gauge and a liquid level meter, and the oil phase and the water phase are respectively discharged after reaching a certain height.

With continued reference to fig. 1, the water-oil mixing zone 42 is provided with a water phase outlet 15, and the water phase outlet 15 is provided at the bottom of the tank 1. The oil phase area 43 is provided with an oil phase outlet 16, and the oil phase outlet 16 is arranged at the bottom of the tank body 1. It should be understood that in the water phase area 41, water is at the bottom and oil is at the top, the oil phase in the newly falling oil-water mixture slowly overflows to the water-oil mixing area 42 through the first baffle 11, so as to realize the initial separation of the water phase and the oil-water mixture, when the interface height of the oil-water mixture reaches the height of the second baffle 12, the oil phase slowly overflows to the oil phase area 43, the liquid level heights of the water-oil mixing area 42 and the oil phase area 43 are respectively monitored through a level gauge and a level gauge, and after the oil phase and the water phase reach a certain height, the oil phase and the water phase are discharged through the oil phase outlet 16 and the water phase outlet 15.

Referring to fig. 1, a second communicating tube 22 is provided in the gas phase zone 3; one end of the second communicating pipe 22 is connected to the partition plate 2 and can communicate with the oil phase zone 43, and a preset distance is provided between the other end of the second communicating pipe 22 and the inner wall of the upper portion of the tank body 1. The second communication pipe 22 is preferably a cylindrical vertical pipe, is located at the upper part of the partition board 2, and has a height of 1/8-1/4, preferably 1/6, which is the distance between the partition board 2 and the top of the tank body 1. The second communication pipe 22 may be provided in plural, preferably 1. It should be understood that the second communicating pipe 22 plays a role of pressure balance, the pressure in the gas phase region 3 is higher, the pressure of the water phase and the oil phase at the lower part of the partition board 2 needs to be reduced in the process of discharging, when the pressures in the gas phase region 3 and the liquid phase region 4 above and below the partition board 2 are not balanced, a certain pressure difference can be generated and the equipment is damaged, and the second communicating pipe 22 is arranged to play a role of pressure balance.

With continued reference to FIG. 1, the gas phase zone 3 is provided with a gas inlet 13 and a gas outlet 14; the air inlet 13 is arranged at the left end of the top of the tank body 1 and corresponds to the arrangement position of the first communication pipe 21, and the air outlet 14 is arranged at the right end of the top of the tank body 1. In specific implementation, a gas-liquid mixture cooled to 40 ℃ by coal hydro-gasification enters the tank body 1 from the gas inlet 13, falls to the position of the first communicating pipe 21 under the action of inertia force and gravity, a gas phase is left in the gas phase area 3, and a water-oil mixture enters the liquid phase area through the first communicating pipe 21.

Referring to fig. 1, a third baffle 17 is further arranged right below the air inlet 14, the third baffle 17 is connected to the upper portion of the tank 1, an included angle is formed between the third baffle 17 and the partition plate 2, and a vertical projection of the third baffle 17 relative to the air inlet 13 completely covers the air inlet 13. The area of the vertical projection of the third baffle 17 in the embodiment is 1-2 times, preferably 1.5 times of the cross-sectional area of the air inlet 14. An included angle of 30-60 degrees, preferably 45 degrees is formed between the third baffle 17 and the partition plate 2; the distance from the lowest end of the third baffle 17 to the inner wall of the top of the tank body 1 is 1/5-1/3 of the height of the gas phase zone 3, preferably 1/4; the purpose of this arrangement is to ensure that most of the gas-liquid mixture is blocked by the third baffle 17, thereby changing the movement trajectory of the gas phase and the liquid phase and preventing the gas phase from entraining the liquid phase to directly enter the gas outlet 14. The gas phase and the liquid phase are blocked by the third baffle 14 to change the original motion track, the gas phase is baffled towards the upper side part and the lower side part of the third baffle 14, the gas velocity is reduced while baffling due to the larger space of the gas phase area, the flow direction is continuously changed after the gas phase and the inner surface of the tank body 1 collide, and finally the gas phase and the liquid phase flow towards the gas outlet 14 at a slower speed.

With continued reference to FIG. 1, a wire mesh 18 is disposed below the air outlet 14, the wire mesh 18 completely covering the air outlet 14. In this embodiment, the wire mesh 18 is disposed in the tank 1, which is immediately below the gas outlet 14, the horizontal projection completely covers the gas phase outlet 3, and the area of the horizontal projection is 1 to 2 times, preferably 1.5 times, the cross-sectional area of the gas outlet 14, in this embodiment, when the gas phase blocked by the third baffle 14 flows through the wire mesh 18, a small amount of liquid droplets entrained in the gas phase are intercepted by the wire mesh 18, and the gas phase is finally discharged from the gas outlet 14 and enters a subsequent processing flow; since the mesh 18 can completely cover the air outlet 14, most of the liquid droplets entering the air outlet 14 are intercepted by the mesh 18.

With reference to fig. 1, the height of the first baffle 11 is higher than the predetermined distance between the other end of the first communicating pipe 21 and the inner wall of the bottom of the tank 1. First baffle 11 is vertical board in this embodiment, is located the right side of first connecting pipe 21, and the preferred distance with jar body 1 left edge is 1/4 of jar body 1 total length, and first baffle 11 upper surface is higher than a certain height of first connecting pipe 21 free end, and the 1/3 of the preferred first baffle 11 height of specific difference in height guarantees that the aqueous phase district has certain cushioning effect. The second baffle 12 is a vertical plate, is located at the left side of the second communicating pipe 22, and has a preferred distance from the right edge of the tank 1 of 1/3 of the total length of the tank 1, the second baffle 12 is lower than the baffle 2, the height difference from the baffle 2 is preferably 1/4 of the height of the second baffle 12, the second baffle 12 is higher than the first baffle 11 by a certain height, and the specific height difference is preferably 1/3 of the height of the second baffle 12, the height difference is set to ensure that the oil-water mixture has enough separation space, and at the same time, the oil phase smoothly flows into the oil phase region.

The utility model discloses a gas-water-oil three-phase separation tank, which comprises a tank body 1, a baffle plate 2, a first communicating pipe 21, a first baffle plate 11 and a second baffle plate 12; the partition plate 2 is arranged in the tank body 1 and divides the tank body 1 into an upper area and a lower area, wherein the upper area is a gas phase area 3, and the lower area is a liquid phase area 4; the first baffle 11 and the second baffle 12 are arranged in the liquid phase zone 4, are sequentially arranged at the bottom of the tank body 1 along the axial direction of the tank body 1, and sequentially divide the liquid phase zone 4 into a water phase zone 41, a water-oil mixing zone 42 and an oil phase zone 43; a preset spacing distance is reserved between the first baffle plate 11 and the baffle plate 2 and between the second baffle plate 12 and the baffle plate 2, and the height of the first baffle plate 11 is lower than that of the second baffle plate 12; the first communicating pipe 21 is arranged in the water phase area 41, one end of the first communicating pipe 21 is connected to the partition board 2 and communicated with the gas phase area 3, and the other end of the first communicating pipe 21 is spaced from the inner wall of the bottom of the tank body 1 by a preset distance. The utility model discloses a be provided with the internals that do benefit to the three-phase separation, can reduce the influence of gaseous phase to liquid phase interface, make the separation that oil phase and aqueous phase can be stable, promote the actual rate of recovery of oil phase, reduce the gaseous phase simultaneously and smuggle oil volume secretly, reduce the adverse effect to coarse coal gas aftertreatment system.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims (10)

1. A gas-water-oil three-phase separation tank is characterized by comprising a tank body, a partition plate, a first communication pipe, a first baffle plate and a second baffle plate; the partition plate is arranged in the tank body and divides the tank body into an upper area and a lower area, wherein the upper area is a gas phase area, and the lower area is a liquid phase area; the first baffle and the second baffle are arranged in the liquid phase area and are sequentially arranged at the bottom of the tank body along the axial direction of the tank body, and the liquid phase area is sequentially divided into a water phase area, a water-oil mixing area and an oil phase area; the upper ends of the first baffle plate and the second baffle plate are spaced from the partition plate by a preset distance, and the height of the first baffle plate is lower than that of the second baffle plate; the first communicating pipe is arranged in the water phase area, one end of the first communicating pipe is connected to the partition board and communicated with the gas phase area, and the other end of the first communicating pipe is spaced from the inner wall of the bottom of the tank body by a preset distance.

2. The gas-water-oil three-phase separation tank is characterized in that a second communicating pipe is arranged in the gas phase area; one end of the second communicating pipe is connected to the partition plate and can be communicated with the oil phase area, and a spacing distance is preset between the other end of the second communicating pipe and the inner wall of the upper portion of the tank body.

3. The gas-water-oil three-phase separation tank is characterized in that the gas phase area is provided with a gas inlet and a gas outlet; the air inlet is arranged at one end of the top of the tank body, which corresponds to the first communication pipe in position, and the air outlet is arranged at the other end of the top of the tank body.

4. The gas-water-oil three-phase separating tank is characterized in that a third baffle is further arranged right below the gas inlet, the third baffle is connected to the upper portion of the tank body, an included angle is formed between the third baffle and the partition plate, and the third baffle completely covers the gas inlet in a vertical projection mode relative to the gas inlet.

5. The gas-water-oil three-phase separation tank is characterized in that a wire mesh is arranged below the gas outlet, and the wire mesh completely covers the gas outlet.

6. The gas-water-oil three-phase separation tank is characterized in that the height of the first baffle is higher than the preset distance between the other end of the first communication pipe and the inner wall of the bottom of the tank body.

7. The gas-water-oil three-phase separating tank as claimed in claim 1, wherein the water-oil mixing zone is provided with a water phase outlet, and the water phase outlet is arranged at the bottom of the tank body.

8. The gas-water-oil three-phase separation tank is characterized in that the oil phase area is provided with an oil phase outlet, and the oil phase outlet is arranged at the bottom of the tank body.

9. The gas-water-oil three-phase separation tank is characterized in that the distance from the lowest end of the third baffle to the inner wall of the top of the tank body is 1/5-1/3 of the height of a gas phase zone.

10. The gas-water-oil three-phase separating tank as claimed in claim 1, wherein the distance between the other end of the first communicating pipe and the inner wall of the bottom of the tank body is 1/8-1/4 of the height of the liquid phase region.

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