CN216169972U

CN216169972U - Three-stage defoaming MVR evaporation separator

Info

Publication number: CN216169972U
Application number: CN202122888371.6U
Authority: CN
Inventors: 张众; 李勇; 韩泽惠
Original assignee: Shandong Tebaoluo Environmental Protection And Energy Conservation Technology Co ltd
Current assignee: Shandong Tebaoluo Environmental Protection And Energy Conservation Technology Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-04-05
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a three-stage defoaming MVR evaporation separator which comprises a main body, wherein a material inlet and a material outlet are formed in the lower part of the main body, a rotational flow demister, a blade demister and a turning plate demister are sequentially arranged in the main body from bottom to top, the rotational flow demister is arranged above the material inlet, the turning plate demister is arranged at the top of the main body, and a steam outlet is formed in the turning plate demister. According to the utility model, through the three sets of defoaming devices, excessive boiling foam in steam is removed, the damage of the boiling foam to the compressor is reduced, and the maximum efficiency of the compressor is exerted.

Description

Three-stage defoaming MVR evaporation separator

Technical Field

The utility model belongs to the technical field of high-salinity sewage and wastewater treatment, and particularly relates to a three-stage defoaming MVR evaporation separator.

Background

With the strict national requirements on the treatment index of high-salt wastewater, the treatment method for solving the high-salt wastewater by using the MVR process is more and more widely applied. However, some of the contaminated water contains too much boiling foam, which has a severe effect on the compressor work.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a three-stage defoaming MVR evaporation separator, and the three sets of defoaming devices are used for removing excessive boiling foam in steam, reducing the damage of the boiling foam to a compressor and exerting the maximum efficiency of the compressor.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a tertiary foam MVR evaporation separator, includes the main part, and the main part lower part is equipped with material import, material export, and inside whirl demister, blade demister, the board demister that turns over that has set gradually from bottom to top of main part, whirl demister locate material import top, turn over the board demister and locate the main part top, turn over and be equipped with steam outlet on the board demister.

The material outlet and the material inlet are arranged oppositely, and the height of the material outlet is lower than that of the material inlet.

The main part middle part is the cylinder section, and the main part lower part is the toper section, and main part toper section department is located to the material export, and the lower part of main part cylinder section is located to the material import.

The cyclone demister comprises a cover cylinder, fan-shaped blades and an intermediate plate, wherein the cover cylinder is an annular plate, the intermediate plate is arranged at the center of the cover cylinder, the fan-shaped blades with a plurality of slopes are arranged between the intermediate plate and the cover cylinder, the fan-shaped blades are arranged at intervals, one ends of the fan-shaped blades are connected with the cover cylinder, the other ends of the fan-shaped blades are connected with the intermediate plate, and the outer side of the cover cylinder is connected with the inner wall of the main body.

The blade demister comprises a corrugated plate and a fixing frame, the corrugated plate is overlapped and arranged, the corrugated plate is spaced apart from the corrugated plate, two ends of the corrugated plate are fixed through the fixing frame, and the fixing block is connected with the inner wall of the main body.

Turn over board demister includes the inner tube, the urceolus includes the upper wall, the annular side wall, the lower wall, the inner tube includes the baffle, annular condensation board, the inner tube is located in the urceolus, annular condensation board upper portion and baffle lower part be airtight connection, annular condensation board lower part and urceolus lower wall connection, be equipped with airflow channel between annular condensation board lower part and the urceolus lower wall, urceolus lower wall and intake pipe airtight connection, intake pipe upper portion runs through to inner tube baffle department, be equipped with the interval between intake pipe upper portion and the baffle, the urceolus lateral wall is connected with steam outlet pipeline, the blade demister top is located to the intake pipe lower part, the urceolus lower wall still is connected with condensate pipe.

The utility model has the beneficial effects that:

1) according to the utility model, through the three sets of defoaming devices, excessive boiling foam in steam is removed, the damage of the boiling foam to the compressor is reduced, and the maximum efficiency of the compressor is exerted.

2) The evaporation separator is provided with three sets of defoaming devices, steam above 86 ℃ firstly passes through the cyclone plate for defoaming under the action of suction force, the airflow becomes rotating airflow when passing through gaps of blades of the cyclone plate, liquid drops in the airflow are ejected out at a certain elevation angle under the action of inertia and are thrown to the outside to be separated from the steam to achieve the purpose of defoaming, and then the liquid drops are separated from the surface of the corrugated plate when the liquid drops are gathered due to collision of mist and the corrugated plate and gravity generated by the liquid drops is larger than the resultant force of rising force of gas and liquid surface tension due to the inertia impact action of the gas. The multi-fold structure of the corrugated plate increases the opportunity of capturing the mist, the mist which is not removed in the air flow is captured at the next turning position through the same action, the repeated action is realized, the defoaming efficiency is greatly improved, the top of the separator main body is fixed by the plate turning demister, the air flow enters from the inner cylinder, the top of the inner cylinder is impacted under the action of inertia, the direction is changed, the air flow flows downwards along the inner wall of the inner cylinder, the air flow overturns out from the bottom of the outer cylinder and flows upwards, the air flow flows out from the material outlet, liquid drops in the air flow cannot be overturned to move upwards under the action of gravity, and only can flow into the separator again from a condensed water pipeline, so the aim of defoaming is fulfilled.

3) The material outlet design can make the better receipts gravity effect come-up of foam, makes more that the foam got rid of, and is more perfect, improves and removes the foam efficiency.

4) The boiling foam is effectively filtered and removed through the three foam removing devices, and the steam after foam removal enters the heat exchanger after being heated up through the working of the compressor. After the secondary steam removes the foam-containing impurities, the effect of the compressor reaches a reasonable range.

5) The problems of more secondary steam boiling foam and lower interception rate are solved; the problem of multiple foam that boils leads to compressor air extraction unstability is solved.

Drawings

FIG. 1 is a schematic diagram of a three-stage defoaming MVR evaporation separator of the present invention.

FIG. 2 is a schematic diagram of a cyclone demister of a three-stage defoaming MVR evaporation separator of the utility model.

FIG. 3 is a schematic diagram of a three-stage defoaming MVR evaporation separator blade demister of the utility model.

FIG. 4 is a schematic diagram of a three-stage defoaming MVR evaporation separator flap demister of the present invention.

In the figure, 1, a plate-turning demister; 2. a blade demister; 3. a cyclone demister; 4. a main body; 5. a material outlet; 6. a steam outlet; 7. a material inlet; 8. a fan-shaped blade; 9. a cover cylinder; 10. a middle plate; 11. a corrugated plate; 12. an air inlet pipe; 13. an annular condensing plate; 14. a lower wall; 15. an annular sidewall; 16. a baffle plate; 17. an upper wall; 18. a condensed water pipeline;

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Examples

As shown in fig. 1-4, a three-level defoaming MVR evaporation separator comprises a main body 4, a material inlet 7 and a material outlet 5 are arranged on the lower portion of the main body 4, a cyclone demister 3, a blade demister 2 and a turning plate demister 1 are sequentially arranged inside the main body 4 from bottom to top, the cyclone demister 3 is arranged above the material inlet 7, the turning plate demister 1 is arranged at the top of the main body 4, and a steam outlet 6 is arranged on the turning plate demister 1.

The material outlet 5 and the material inlet 7 are arranged oppositely, and the height of the material outlet 5 is lower than that of the material inlet 7.

The middle part of the main body 4 is a cylindrical section, the lower part of the main body 4 is a conical section, the material outlet 5 is arranged at the conical section of the main body 4, and the material inlet 7 is arranged at the lower part of the cylindrical section of the main body 4.

The cyclone demister 3 comprises a cover cylinder 9, fan-shaped blades 8 and an intermediate plate 10, wherein the cover cylinder 9 is an annular plate, the intermediate plate 10 is arranged at the center of the cover cylinder 9, the fan-shaped blades 8 with a plurality of slopes are arranged between the intermediate plate 10 and the cover cylinder 9, the fan-shaped blades 8 are arranged at intervals, one ends of the fan-shaped blades 8 are connected with the cover cylinder 9, the other ends of the fan-shaped blades 8 are connected with the intermediate plate 10, and the outer side of the cover cylinder 9 is connected with the inner wall of the main body 4.

The blade demister 2 comprises a corrugated plate 11 and a fixing frame, the corrugated plate 11 is overlapped, the corrugated plate 11 is spaced, the two ends of the corrugated plate 11 are fixed through the fixing frame, and the fixing block is connected with the inner wall of the main body 4.

Turning over board demister 1 includes the inner tube, the urceolus includes upper wall 17, annular side wall 15, lower wall 14, the inner tube includes baffle 16, annular condensation board 13, the inner tube is located in the urceolus, annular condensation board 13 upper portion and baffle 16 lower part sealing connection, annular condensation board 13 lower part is connected with urceolus lower wall 14, be equipped with airflow channel between annular condensation board 13 lower part and the urceolus lower wall 14, urceolus lower wall 14 and intake pipe 12 sealing connection, intake pipe 12 upper portion runs through to inner tube baffle 16 department, be equipped with the interval between intake pipe 12 upper portion and the baffle 16, the urceolus lateral wall is connected with the steam outlet pipeline, 2 tops are located to blade demister to intake pipe 12 lower part, urceolus lower wall 14 still is connected with condensate pipe 18.

According to the utility model, through the three sets of defoaming devices, excessive boiling foam in steam is removed, the damage of the boiling foam to the compressor is reduced, and the maximum efficiency of the compressor is exerted.

The evaporation separator is provided with three sets of defoaming devices, steam above 86 ℃ firstly passes through the cyclone plate for defoaming under the action of suction force, the air flow becomes rotating air flow when passing through gaps of blades of the cyclone plate, liquid drops in the air flow are ejected out at a certain elevation angle under the action of inertia and are thrown to the outside to be separated from the steam to achieve the purpose of defoaming, and then the liquid drops are separated from the surface of the corrugated plate 11 when the liquid drops collide with the corrugated plate 11 and are larger than the resultant force of the rising force of the gas and the surface tension of the liquid due to the action of inertial impact of the gas and the defoaming of the blades above. The multi-fold structure of the corrugated plate 11 increases the opportunity of mist foam to be captured, mist foam which is not removed in the air flow is captured through the same action at the next turning position, the repeated action is realized, the efficiency of the mist foam removal is greatly improved, the plate turning demister 1 fixes the top of the separator main body 4, the air flow enters from the inner cylinder, impacts the top of the inner cylinder under the action of inertia, the direction is changed, the air flow flows downwards along the inner wall of the inner cylinder, the air flow overturns out from the bottom of the outer cylinder and flows upwards, and flows out from the material outlet 5, liquid drops in the air flow cannot overturn and move upwards under the action of gravity, and only can flow into the separator from the condensed water pipeline 18, and the purpose of the mist foam removal is achieved.

The design of the material outlet 5 can enable the foam to float upwards under the action of gravity, so that more and more foams can be removed, the improvement on the foam removal efficiency is realized.

The boiling foam is effectively filtered and removed through the three foam removing devices, and the steam after foam removal enters the heat exchanger after being heated up through the working of the compressor. After the secondary steam removes the foam-containing impurities, the effect of the compressor reaches a reasonable range.

The problems of more secondary steam boiling foam and lower interception rate are solved; the problem of multiple foam that boils leads to compressor air extraction unstability is solved.

The foregoing is merely exemplary and illustrative of the present invention, and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a tertiary foam MVR evaporation separator, includes the main part, and the main part lower part is equipped with material import, material export, characterized by, and inside whirl demister, blade demister, the board demister that turns over of having set gradually from bottom to top of main part, whirl demister locate material import top, turn over the board demister and locate the main part top, turn over and be equipped with steam outlet on the board demister.

2. The three-stage defoaming MVR evaporation separator of claim 1, wherein the material outlet is arranged opposite to the material inlet, and the height of the material outlet is lower than that of the material inlet.

3. The MVR evaporation separator of claim 1, wherein the middle portion of the main body is a cylindrical section, the lower portion of the main body is a tapered section, the material outlet is disposed at the tapered section of the main body, and the material inlet is disposed at the lower portion of the cylindrical section of the main body.

4. The MVR evaporator-separator with three-stage defoaming as claimed in claim 1, wherein the cyclone demister comprises a cover cylinder, fan-shaped blades, and an intermediate plate, the cover cylinder is an annular plate, the intermediate plate is disposed at the center of the cover cylinder, a plurality of inclined fan-shaped blades are disposed between the intermediate plate and the cover cylinder, the fan-shaped blades are spaced from each other, one end of each fan-shaped blade is connected with the cover cylinder, the other end of each fan-shaped blade is connected with the intermediate plate, and the outer side of the cover cylinder is connected with the inner wall of the main body.

5. The three-stage defoaming MVR evaporation separator of claim 1, wherein the vane demister comprises corrugated plates and a fixing frame, the corrugated plates are overlapped and spaced apart from each other, two ends of each corrugated plate are fixed by the fixing frame, and the fixing frame is connected with the inner wall of the main body.

6. The MVR evaporative separator with three-stage defoaming as claimed in claim 1, wherein the flap demister comprises an inner cylinder and an outer cylinder, the outer cylinder comprises an upper wall, an annular side wall and a lower wall, the inner cylinder comprises a baffle plate and an annular condensation plate, the inner cylinder is arranged in the outer cylinder, the upper part of the annular condensation plate is hermetically connected with the lower part of the baffle plate, the lower part of the annular condensation plate is connected with the lower wall of the outer cylinder, an air flow channel is arranged between the lower part of the annular condensation plate and the lower wall of the outer cylinder, the lower wall of the outer cylinder is hermetically connected with an air inlet pipe, the upper part of the air inlet pipe penetrates through the baffle plate of the inner cylinder, a gap is arranged between the upper part of the air inlet pipe and the baffle plate, the side wall of the outer cylinder is connected with a steam outlet pipeline, the lower part of the air inlet pipe is arranged above the vane demister, and the lower wall of the outer cylinder is further connected with a condensed water pipeline.