Gas-liquid separator for MVR (Mechanical Vapor Recompression) evaporation

Abstract

The utility model discloses a gas-liquid separator for MVR (Mechanical Vapor Recompression) evaporation, which is characterized in that a spiral circulation groove is arranged in a fixed circular ring, a filter ring is sealed between the lower end of the fixed circular ring and a gas-liquid separator shell, a support plate is fixedly connected to the inner wall of one side of the gas-liquid separator shell positioned at the lower end of the fixed circular ring, and a motor is fixedly mounted at the bottom end of the middle of the support plate; the low-temperature water circulation device has the following advantages that after the spiral circulation groove is formed in the fixed circular ring, low-temperature water can circulate along the spiral circulation groove without a dead angle, and the low-temperature water entering the fixed circular ring is updated; gas entering the gas-liquid separator shell is preliminarily filtered through the filtering ring to absorb moisture in the gas, liquid located on one side of the arc-shaped groove structure of the arc-shaped stirring blade passes through the water filtering hole and is finally discharged from the water discharging hole, and the liquid is thrown to the splash-proof net cover along the arc-shaped stirring blade. And the thrown-out liquid can be effectively prevented from directly colliding with the surface of the fixed circular ring to generate aerial fog.

Description

Technical Field

[0001] The utility model relates to the technical field of MVR evaporation, in particular to a gas-liquid separator used for MVR evaporation. Background Art

[0002] In the field of high-salinity wastewater evaporation, the MVR evaporation process is currently widely used to reduce the system's operating energy consumption. This process primarily consumes electricity and does not require steam, which can significantly reduce the cost of treating high-salinity wastewater. Chinese patent CN217249771U discloses a gas-liquid separator for an MVR evaporation and concentration system, comprising: a gas-liquid separator housing, a rotary separation mechanism, and a condensation separation mechanism; a support baffle installed within the gas-liquid separator housing; the rotary separation mechanism is disposed within the gas-liquid separator housing, the rotary separation mechanism including a motor connected to a rotary support rod, the rotary support rod being equipped with a plurality of evenly distributed stirring blades; and the condensation separation mechanism is disposed within the gas-liquid separator housing, the condensation separation mechanism including a fixed ring fixed to the gas-liquid separator housing, the fixed ring having a flow cavity excavated therein. By configuring the corresponding mechanisms of the gas-liquid separator, the utility model improves the separation efficiency of gas and liquid, reduces the water vapor content in the final exhaust gas, and thus enables effective recycling, reduces waste, and reduces unnecessary economic losses for users.

[0003] The above existing technologies have the following deficiencies: in the existing technologies, since the flow cavity inside the fixed ring is annular in structure, when low-temperature water enters from the water inlet pipe and is discharged from the water outlet pipe, it is difficult to ensure that all the liquid in the flow cavity is replaced; and when the stirring blades rotate at high speed, liquid is easily accumulated on the surface of the stirring blades, and the accumulated liquid will be thrown at high speed to collide with the inner ring surface of the fixed ring, which will cause the collided liquid to become mist, thereby affecting the gas-liquid separation. Utility Model Content

[0004] The technical problem to be solved by the present invention is that, when low-temperature water enters from the water inlet pipe and is discharged from the water outlet pipe, it is difficult to ensure that all the liquid in the flow chamber is replaced; and when the stirring blades rotate at high speed, the liquid accumulated on the surface of the stirring blades is thrown and hits the inner ring surface of the fixed ring, causing the hit liquid to become mist, thereby affecting the gas-liquid separation. Therefore, a gas-liquid separator for MVR evaporation is provided to solve the above problems.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a gas-liquid separator for MVR evaporation, which comprises: a gas-liquid separator shell and a fixed ring, a spiral circulation groove is provided inside the fixed ring, a filter ring is sealed between the lower end of the fixed ring and the gas-liquid separator shell, the gas-liquid separator shell is located on one side of the lower end of the fixed ring and the inner wall is fixedly connected to a support plate, a motor is fixedly installed on the bottom end of the middle part of the support plate, the output end of the motor is connected to a rotating rod, the outer wall of the rotating rod is fixedly connected to an arc-shaped stirring blade, a connecting groove is provided inside the rotating rod, a drainage hole is provided on the side of the rotating rod close to the support plate, one side of the arc-shaped stirring blade is an arc-shaped groove structure, and the arc-shaped stirring blade is located on the side of the arc-shaped groove structure and a water filter hole is provided.

[0006] As a preferred technical solution of the present invention, a water passage is provided inside the arc-shaped stirring blade, the water passage is connected to the water filter hole and the connecting groove, and the connecting groove is connected to the drainage hole.

[0007] As an optimal technical solution of the present invention, a splash-proof mesh cover is provided inside the fixed ring, the outer diameter of the splash-proof mesh cover is smaller than the inner diameter of the fixed ring, and the fixed ring and the top of the splash-proof mesh cover are fixedly connected to the gas-liquid separator housing.

[0008] As a preferred technical solution of the present invention, through holes are provided around the support plate, and a plurality of through holes are provided. A permeable cotton is provided on one side of the upper end of the through hole of the support plate.

[0009] As an optimal technical solution of the present invention, a water inlet pipe is provided on one side of the lower end of the fixed ring, and the water inlet pipe is connected to the spiral circulation groove. A water outlet pipe is provided on one side of the upper end of the fixed ring, and the water outlet pipe is connected to the spiral circulation groove.

[0010] As an optimal technical solution of the present invention, an air inlet pipe is provided on one side of the upper end of the gas-liquid separator housing, an exhaust pipe is provided on the top of the gas-liquid separator housing, a sealing cover is provided on one side of the motor of the support plate, and a drain port is provided on one side of the bottom end of the gas-liquid separator housing.

[0011] The utility model has the following advantages: after the spiral flow groove is arranged in the fixed ring, the low-temperature water can flow along the spiral flow groove without dead angles and enter the low-temperature water in the fixed ring;

[0012] The gas entering the gas-liquid separator shell passes through the filter ring for preliminary filtration to absorb the moisture in the gas. The filter ring continuously accumulates moisture into water droplets, which then continue to drip onto the permeable cotton.

[0013] The high-speed rotating arc-shaped stirring blades can separate the liquid in the gas. The liquid on the side of the arc-shaped groove structure of the arc-shaped stirring blades will pass through the water filter holes and finally be discharged from the drain holes. The liquid will be thrown along the arc-shaped stirring blades to the splash-proof mesh cover, which can effectively prevent the thrown liquid from directly colliding with the surface of the fixed ring to produce aerosol. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the internal structure of a preferred embodiment of the utility model;

[0015] Figure 2 This is a preferred embodiment of the utility model Figure 1 Enlarged schematic diagram of structure A;

[0016] Figure 3 It is a schematic cross-sectional view of the arc-shaped stirring blade and the rotating rod in a preferred embodiment of the present utility model.

[0017] Explanation of the accompanying symbols: 1. Gas-liquid separator housing; 2. Fixed ring; 3. Spiral circulation groove; 4. Filter ring; 5. Support plate; 501. Through hole; 502. Permeable cotton; 6. Motor; 7. Rotating rod; 701. Connecting groove; 702. Drain hole; 8. Arc-shaped stirring blade; 801. Water filter hole; 802. Water trough; 9. Splash-proof mesh cover; 10. Water inlet pipe; 11. Water outlet pipe; 12. Air inlet pipe; 13. Exhaust pipe; 14. Sealing cover; 15. Drain port. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," "outside," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Please refer to Figure 1-Figure 3 The utility model is a gas-liquid separator for MVR evaporation, comprising: a gas-liquid separator housing 1 and a fixed ring 2, a spiral circulation groove 3 is provided inside the fixed ring 2, a filter ring 4 is sealed between the lower end of the fixed ring 2 and the gas-liquid separator housing 1, the gas-liquid separator housing 1 is located on one side of the lower end of the fixed ring 2, a support plate 5 is fixedly connected to the inner wall thereof, a motor 6 is fixedly installed at the bottom end of the middle of the support plate 5, a rotating rod 7 is connected to the output end of the motor 6, an arc-shaped stirring blade 8 is fixedly connected to the outer wall of the rotating rod 7, a connecting groove 701 is provided inside the rotating rod 7, a drainage hole 702 is provided on the side of the rotating rod 7 close to the support plate 5, one side of the arc-shaped stirring blade 8 is an arc-shaped groove structure, and the arc-shaped stirring blade 8 is located on the side of the arc-shaped groove structure and a water filter hole 801 is provided.

[0022] Combine Figure 3 As shown, the arc-shaped stirring blade 8 has a water channel 802 formed inside, and the water channel 802 is connected to the water filter hole 801 and the connecting groove 701, so as to facilitate the timely removal of the liquid in the arc-shaped groove structure. Figure 1 As shown, the connecting groove 701 is connected to the drainage hole 702, and a splash-proof mesh cover 9 is provided inside the fixed ring 2. The splash-proof mesh cover 9 can effectively prevent the thrown liquid from colliding and generating water mist. The outer circle diameter of the splash-proof mesh cover 9 is smaller than the inner circle diameter of the fixed ring 2, and the fixed ring 2 and the top of the splash-proof mesh cover 9 are fixedly connected to the gas-liquid separator housing 1.

[0023] Combine Figure 2 As shown, a through hole 501 is provided around the support plate 5, and a number of through holes 501 are provided. The through holes 501 facilitate downward discharge of the liquid passing through the permeable cotton 502. The support plate 5 is provided with a permeable cotton 502 on one side of the upper end of the through hole 501, and a water inlet pipe 10 is provided on one side of the lower end of the fixed ring 2. The water inlet pipe 10 is connected to the spiral circulation groove 3. A water outlet pipe 11 is provided on one side of the upper end of the fixed ring 2. The water outlet pipe 11 is connected to the spiral circulation groove 3. An air inlet pipe 12 is provided on one side of the upper end of the gas-liquid separator housing 1, and an exhaust pipe 13 is provided on the top of the gas-liquid separator housing 1. A sealing cover 14 is provided on one side of the motor 6 of the support plate 5, and a liquid discharge port 15 is provided on one side of the bottom end of the gas-liquid separator housing 1.

[0024] Specifically, when the present invention is used, the operating motor 6 drives the rotating rod 7 to rotate, and the rotating rod 7 causes the arc-shaped stirring blade 8 to move, and the arc-shaped groove structure of the arc-shaped stirring blade 8 moves toward the wind, and at the same time, low-temperature water is supplied from the water inlet pipe 10 into the spiral flow groove 3 in the fixed ring 2, so that the low-temperature water entering the interior of the fixed ring 2 is spirally transported to the water outlet pipe 11 along the spiral flow groove 3, and the gas generated by the MVR evaporator enters the interior of the gas-liquid separator housing 1 through the air inlet pipe 12. The gas entering the interior of the gas-liquid separator housing 1 passes through the filter ring 4 for preliminary filtration to absorb moisture in the gas, and after the filter ring 4 continuously accumulates water into water droplets, Water droplets will continue to drip onto the permeable cotton 502. When the gas passing through the filter ring 4 enters the inner ring of the fixed ring 2 again, the high-speed rotating arc-shaped stirring blades 8 can separate the liquid in the gas. When the liquid in the air continues to accumulate on the arc-shaped stirring blades 8, the liquid on the side of the arc-shaped groove structure of the arc-shaped stirring blades 8 will enter the water trough 802 through the water filter hole 801, and then enter the connecting groove 701 through the water trough 802, and then pass through the connecting groove 701 to be discharged from the drain hole 702, and be thrown along the arc-shaped stirring blades 8 to the splash-proof mesh cover 9, thereby effectively preventing the thrown liquid from directly colliding with the surface of the fixed ring 2 to produce aerosol.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

[0026] Other parts of the present invention that are not described in detail belong to the prior art and will not be described in detail here.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A gas-liquid separator for MVR evaporation, comprising: The gas-liquid separator shell (1) and the fixed ring (2) are characterized in that a spiral circulation groove (3) is provided inside the fixed ring (2), a filter ring (4) is sealed between the lower end of the fixed ring (2) and the gas-liquid separator shell (1), a support plate (5) is fixedly connected to the inner wall of the gas-liquid separator shell (1) on one side of the lower end of the fixed ring (2), a motor (6) is fixedly installed at the bottom end of the middle part of the support plate (5), the output end of the motor (6) is connected to a rotating rod (7), the outer wall of the rotating rod (7) is fixedly connected to an arc-shaped stirring blade (8), a connecting groove (701) is provided inside the rotating rod (7), a drainage hole (702) is provided on the side of the rotating rod (7) close to the support plate (5), one side of the arc-shaped stirring blade (8) is an arc-shaped groove structure, and the arc-shaped stirring blade (8) is provided with a water filter hole (801) on the side of the arc-shaped groove structure.

2. A gas-liquid separator for MVR evaporation according to claim 1, characterized in that: A water passage (802) is provided inside the arc-shaped stirring blade (8), the water passage (802) is connected to the water filter hole (801) and the communication groove (701), and the communication groove (701) is connected to the drainage hole (702).

3. The gas-liquid separator for MVR evaporation according to claim 1, characterized in that: A splash-proof screen (9) is provided inside the fixed ring (2), the outer diameter of the splash-proof screen (9) being smaller than the inner diameter of the fixed ring (2), and the top ends of the fixed ring (2) and the splash-proof screen (9) are fixedly connected to the gas-liquid separator housing (1).

4. The gas-liquid separator for MVR evaporation according to claim 1, characterized in that: The support plate (5) is provided with through holes (501) around its periphery, and the through holes (501) are provided in a plurality of numbers. The support plate (5) is provided with permeable cotton (502) on one side of the upper end of the through holes (501).

5. The gas-liquid separator for MVR evaporation according to claim 1, characterized in that: A water inlet pipe (10) is provided on one side of the lower end of the fixed circular ring (2), and the water inlet pipe (10) is connected to the spiral circulation groove (3); a water outlet pipe (11) is provided on one side of the upper end of the fixed circular ring (2), and the water outlet pipe (11) is connected to the spiral circulation groove (3).

6. The gas-liquid separator for MVR evaporation according to claim 1, characterized in that: An air inlet pipe (12) is provided on one side of the upper end of the gas-liquid separator housing (1), an exhaust pipe (13) is provided on the top end of the gas-liquid separator housing (1), a sealing cover (14) is provided on one side of the support plate (5) located on the motor (6), and a liquid discharge port (15) is provided on one side of the bottom end of the gas-liquid separator housing (1).

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