Gas-liquid separator for exhaust system of storage tank

Abstract

The utility model provides a gas-liquid separator for a storage tank exhaust system, which comprises a tank body, a liquid inlet arranged on the side surface of the tank body, a liquid inlet pipeline connected to a separation cylinder in the tank body, a liquid outlet arranged at the bottom of the tank body, a gas outlet arranged at the top of the tank body, a demister net arranged at the bottom of the tank body, and a first return pipe arranged below the demister net in the tank body, a second return pipe is installed on the side face of the top of the tank, a motor is installed at the top of the tank, and a rotating shaft of the motor penetrates through the top of the separation barrel to reach the interior of the separation barrel; and a separation assembly is mounted in the separation cylinder. According to the utility model, the separation cylinder is arranged, the rotating shaft, the spiral blade, the umbrella-shaped separation plate and the collision plate are arranged in the separation cylinder, the spiral blade rotates to drive the mixed liquid to generate centrifugal force so as to preliminarily separate the mixed liquid, and the collision plate is used for providing pressure for the mixed liquid and enabling the mixed liquid to collide with the inner wall; therefore, the mixed liquid is further separated by utilizing impact, so that the separation efficiency of the gas-liquid separator is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas -liquid separator, concretely to a gas -liquid separator for tank exhaust system. BACKGROUND

[0002] The tank is a kind of sealed container for storing liquid or gas, and is widely used in chemical industry, petroleum and food industry etc. The tank needs to separate gas and liquid, prevent compressor damage, improve heat exchange efficiency, stabilize liquid supply, filter impurities and mute, to adapt to different working conditions, and guarantee production safety and system stability. In the exhaust system of the tank, gas-liquid separator is used to effectively separate and remove the liquid droplets or particles entrained in the exhaust gas. The existing gas-liquid separator may not separate gas and liquid completely when in use, and small liquid droplets may flow out with gas, thereby reducing the gas-liquid separation effect.

[0003] In order to solve the above-mentioned problem of "reducing the gas-liquid separation effect", through retrieval, it is found that: application No. CN202222250158.7 discloses a gas-liquid separator for natural gas tank, which comprises a separation tank; the top of the separation tank is fixedly provided with an exhaust device, and the inner side of the separation tank is provided with a separation mechanism; the inner side of the separation tank is provided with a liquid removal mechanism and a driving device, and the driving device is located below the liquid removal mechanism; by setting the driving shaft, two groups of cams, vertical rods and spring pieces, the cams drive the sliding frame and the defoaming net to vibrate up and down, which can quickly shake out the liquid in the defoaming net, improve the adsorption effect of the defoaming net, and avoid the phenomenon that liquid droplets leak out with gas due to the saturation of the internal space of the defoaming net.

[0004] However, the above-mentioned gas-liquid separator only separates gas and liquid by the separation plate when in use, separates gas and liquid into small droplets, and accumulates at the bottom of the separation tank. Without external force, the separation effect of the separation plate is poor, the separation time is long, and the separation efficiency is low. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of gas-liquid separator for tank exhaust system to solve the problems raised in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A kind of gas-liquid separator for tank exhaust system, comprising:

[0008] The tank body is provided with a liquid inlet on the side, the liquid inlet is connected to a separation cylinder in the tank body, the tank body is provided with a liquid outlet on the bottom and a gas outlet on the top, the bottom of the tank body is divided by a defoaming net, the tank body is provided with a cleaning pipe above the defoaming net and a first reflux pipe below the defoaming net, the tank body is provided with a second reflux pipe on the side of the top, and a motor is arranged on the top of the tank body, the rotating shaft of the motor penetrates the tank body and reaches the inside of the separation cylinder.

[0009] The separation assembly is arranged in the separation cylinder.

[0010] Preferably, the separation assembly comprises a spiral blade, the spiral blade is fixed outside the rotating shaft, the top of the spiral blade extends to the top of the separation cylinder, and the bottom of the spiral blade extends above a fixed sleeve ring on the bottom of the rotating shaft.

[0011] Preferably, the fixed sleeve ring is fixed outside the bottom of the rotating shaft, a collision plate is fixedly arranged outside the fixed sleeve ring, and the lower plate surface of the collision plate is attached to the upper plate surface of an umbrella-shaped separation plate.

[0012] Preferably, the umbrella-shaped separation plate is fixed on the bottom of the separation cylinder, and the umbrella-shaped separation plate is provided with a through hole.

[0013] Preferably, the bottom outlet of the separation cylinder is wrapped by a second sealing ring, and the second sealing ring penetrates the center of the defoaming net and reaches the bottom of the tank body.

[0014] Preferably, the defoaming net is provided with small holes, through holes are formed in the two sides of the defoaming net, a fixed column is connected in the through hole, and the fixed column is fixed on a fixed ring of the inner wall of the tank body.

[0015] Preferably, a first sealing ring is arranged between the rotating shaft of the motor and the top of the tank body, the lower end of the first sealing ring is provided with a sleeve, the rotating shaft is arranged in the sleeve, and the bottom end of the sleeve is connected to the top of the separation cylinder.

[0016] Preferably, a support is arranged on the bottom of the tank body.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] The utility model discloses a separation cylinder, a rotating shaft, a spiral blade, an umbrella-shaped separation plate and a collision plate are arranged in the separation cylinder, the centrifugal force generated by the rotation of the spiral blade is utilized to preliminarily separate the mixed liquid, the collision plate is utilized to provide pressure to the mixed liquid and make the mixed liquid collide with the inner wall, so that the mixed liquid is further separated by collision, and the separation efficiency of the gas-liquid separator is improved.

[0019] This invention uses a foam-breaking screen to create a separate settling zone within the tank, allowing difficult-to-separate gas and liquid components in the mixed liquid to be separated by settling at the bottom of the tank. Furthermore, the foam-breaking screen prevents gas from carrying water vapor into the upper part of the tank, thus achieving a better separation effect. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a three-dimensional schematic diagram of the internal structure of this utility model;

[0022] Figure 3 This is a three-dimensional schematic diagram of the internal structure of this utility model from another perspective;

[0023] Figure 4 This is a three-dimensional schematic diagram of the separation cylinder of this utility model;

[0024] Figure 5 This is a cross-sectional view of the inside of the separator of this utility model.

[0025] In the diagram: 1-Tank body; 101-Support; 102-First reflux pipe; 103-Second reflux pipe; 104-Cleaning pipe; 2-Liquid inlet; 3-Liquid outlet; 4-Air outlet; 5-Separation cylinder; 6-Motor; 601-Shaft; 602-Helical blade; 603-Umbrella-shaped separation plate; 604-Fixing ring; 605-Collision plate; 7-First sealing ring; 8-Sleeve; 9-Ventilation hole; 10-Second sealing ring; 11-Foam breaking screen; 1101-Through hole; 12-Fixing ring; 1201-Fixing column. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example:

[0028] Please see Figures 1 to 5 This utility model provides a technical solution:

[0029] A gas-liquid separator for a storage tank venting system, comprising:

[0030] The tank body 1 is provided with a liquid inlet 2 on the side, which is connected to a separation cylinder 5 inside the tank body 1, a liquid outlet 3 on the bottom, and a gas outlet 4 on the top. The bottom of the tank body 1 is divided by a defoaming net 11. A cleaning pipe 104 is arranged above the defoaming net 11 inside the tank body 1, and a first return pipe 102 is arranged below. A second return pipe 103 is arranged on the side of the top of the tank body 1. A motor 6 is arranged on the top of the tank body 1. The rotating shaft 601 of the motor 6 penetrates the top of the tank body 1 and the separation cylinder 5 and reaches the inside of the separation cylinder 5.

[0031] The separation assembly is arranged inside the separation cylinder 5.

[0032] In this embodiment, the mixed liquid enters the inside of the tank body 1 through the liquid inlet 2 and directly passes into the top of the separation cylinder 5. The top of the separation cylinder 5 is uniformly provided with spiral blades 602, which are fixedly connected to the rotating shaft 601. The rotating shaft 601 is connected to the motor 6 on the top of the tank body 1. After the motor 6 is started, the spiral blades 602 rotate with the rotating shaft 601. The mixed liquid entering the top of the separation cylinder 5 also falls along the arc of the spiral blades 602 and is driven to rotate by the spiral blades 602. When the mixed liquid rotates, the centrifugal force acting on the liquid is greater than that acting on the gas, so the liquid has a tendency to centrifugally separate. The centrifugal force generated by the mixed liquid driven by the spiral blades 602 causes the gas to preliminarily separate from the liquid. The separated gas enters the top of the tank body 1 through the air hole 9 in the top of the separation cylinder 5 and is discharged from the gas outlet 4 on the top of the tank body 1.

[0033] Specifically, the separation assembly includes the spiral blades 602, which are fixed to the outside of the rotating shaft 601. The top of the spiral blades 602 extends to the top of the separation cylinder 5, and the bottom extends above the fixed collar 604 at the bottom of the rotating shaft 601.

[0034] Specifically, the fixed collar 604 is fixed to the outside of the bottom of the rotating shaft 601. The outside of the fixed collar 604 is fixedly provided with a collision plate 605. The lower plate surface of the collision plate 605 is attached to the upper plate surface of the umbrella-shaped separation plate 603.

[0035] In this embodiment, the separation efficiency and effect are insufficient only by centrifugal force. There may still be gas in the liquid. When the preliminarily separated liquid slides out of the bottom outlet of the spiral blades 602 and falls above the umbrella-shaped separation plate 603, the umbrella-shaped separation plate 603 is provided with a plurality of small holes. The bottom of the rotating shaft 601 is further connected to the collision plate 605, which is shaped to match the upper plate surface of the umbrella-shaped separation plate 603. When the collision plate 605 rotates with the rotating shaft 601, it scrapes the mixed liquid on the umbrella-shaped separation plate 603, forces the mixed liquid to enter the small holes on the umbrella-shaped separation plate 603, and causes the mixed liquid that does not enter the small holes to collide with the inside of the separation cylinder 5, thereby further separating the liquid and the gas and improving the separation efficiency.

[0036] Specifically, the umbrella-shaped separation plate 603 is fixed at the bottom of the separation cylinder 5, and the umbrella-shaped separation plate 603 is provided with a through hole.

[0037] In this embodiment, the mixed liquid separated by collision enters the bottom of the tank body 1 through the outlet pipe at the bottom of the separation cylinder 5. The bottom of the tank body 1 is divided into a settling zone by the defoaming net 11. Due to the difference in specific gravity between the gas and the liquid, the liquid will be subjected to a greater gravitational force, generating a downward velocity, while the gas will still flow in the original direction and collect below the defoaming net 11. The gas passes through the defoaming net 11 upwards, which can separate the smaller liquid carried by the gas, so that small droplets are gathered into large droplets and drop back to the bottom under the action of gravity, thereby achieving the separation of gas and liquid with the highest efficiency.

[0038] Specifically, the outlet at the bottom of the separation cylinder 5 is wrapped by the second sealing ring 10, and penetrates through the center of the defoaming net 11 to reach the bottom of the tank body 1.

[0039] Specifically, the defoaming net 11 has small holes, and the defoaming net 11 is provided with through holes 1101 on both sides, and the through holes 1101 are connected with fixing columns 1201, and the fixing columns 1201 are fixed on the fixing ring 12 of the inner wall of the tank body 1.

[0040] Specifically, the first sealing ring 7 is installed between the rotating shaft 601 of the motor 6 and the top of the tank body 1, the lower end of the first sealing ring 7 is provided with a sleeve 8, the rotating shaft 601 is arranged in the sleeve 8, and the bottom end of the sleeve 8 is connected to the top of the separation cylinder 5.

[0041] Specifically, the first reflux pipe 102 is connected to the second reflux pipe 103 by a pump, and when the mixed liquid in the settling zone accumulates too much, the pump can be started to transport the liquid in the settling zone back into the separation cylinder 5 for separation treatment.

[0042] Specifically, the cleaning pipe 104 is connected to an external clean water source, which can clean the surface of the defoaming net 11. The defoaming net 11 can also be disassembled, and can be replaced and maintained by lifting the fixing column 1201 from above to make the through hole 1101 disengage.

[0043] Specifically, the tank body 1 is provided with a bracket 101 at the bottom.

[0044] In use, the mixed liquid enters the tank 1 through the inlet 2 and flows directly into the top of the separator 5. Spiral blades 602 are evenly distributed on the top of the separator 5, and these blades are fixedly connected to a rotating shaft 601. The rotating shaft 601 is connected to a motor 6 at the top of the tank 1. When the motor 6 is started, the spiral blades 602 rotate along with the rotating shaft 601. The mixed liquid entering the top of the separator 5 also falls along the arc of the spiral blades 602 and is simultaneously rotated by them. When the mixed liquid rotates, the centrifugal force on the liquid is greater than that on the gas, thus the liquid tends to separate centrifugally. The centrifugal force generated by the spiral blades 602 causes the gas and liquid to initially separate. When the liquid slides out of the bottom outlet of the spiral blades 602, it falls above an umbrella-shaped separator 603. The umbrella-shaped separator 603 has many small holes, and a collision plate 605 is connected to the bottom of the rotating shaft 601. The shape of 05 fits the upper surface of the umbrella-shaped separation plate 603. When the collision plate 605 rotates with the rotating shaft 601, it scrapes the mixed liquid on the umbrella-shaped separation plate 603, forcing the mixed liquid into the small holes on the umbrella-shaped separation plate 603, and causing other mixed liquids that have not entered the small holes to collide with the interior of the separation cylinder 5 for further separation. Finally, the mixed liquid separated by collision enters the bottom of the tank 1 through the outlet pipe at the bottom of the separation cylinder 5. The bottom of the tank 1 is divided into a settling zone by the defoaming net 11. In the settling zone, due to the difference in specific gravity between gas and liquid, the liquid will be subject to greater gravity and generate a downward velocity, while the gas will still flow in the original direction and gather below the defoaming net 11. The gas rises through the defoaming net 11, which can separate the smaller liquids carried by the gas, causing the small droplets to converge into larger droplets, which drip back to the bottom under the action of gravity, thus completing the complete gas-liquid separation. The separated liquid is discharged through the liquid outlet 3, and the gas is discharged through the gas outlet 4.

[0045] All other parts of this utility model not described herein are the same as existing technologies, or are known technologies, or can be implemented using existing technologies, and will not be described in detail here.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas-liquid separator for a storage tank venting system, characterized in that, include: Tank (1), with an inlet (2) installed on the side of the tank (1), the inlet (2) pipe connected to the separation cylinder (5) inside the tank (1), an outlet (3) installed at the bottom of the tank (1), an air outlet (4) installed at the top, the bottom of the tank (1) being divided by a defoaming net (11), a cleaning pipe (104) installed above the defoaming net (11) inside the tank (1), a first return pipe (102) installed below, a second return pipe (103) installed on the top side of the tank (1), a motor (6) installed at the top of the tank (1), the shaft (601) of the motor (6) passing through the top of the tank (1) and the separation cylinder (5) to reach the inside of the separation cylinder (5); The separation cylinder (5) is equipped with a separation component, which includes a spiral blade (602). The spiral blade (602) is fixed on the outside of the rotating shaft (601). The top of the spiral blade (602) extends to the top of the separation cylinder (5), and the bottom extends to the fixing ring (604) at the bottom of the rotating shaft (601).

2. The gas-liquid separator for a storage tank venting system according to claim 1, characterized in that: The fixing collar (604) is fixed on the outer side of the bottom of the rotating shaft (601). A collision plate (605) is fixedly installed on the outer side of the fixing collar (604). The lower plate surface of the collision plate (605) is attached to the upper plate surface of the umbrella-shaped separation plate (603).

3. A gas-liquid separator for a storage tank venting system according to claim 2, characterized in that: The umbrella-shaped separation plate (603) is fixed to the bottom of the separation cylinder (5), and the umbrella-shaped separation plate (603) has a through opening.

4. A gas-liquid separator for a storage tank venting system according to claim 1, characterized in that: The bottom outlet of the separator (5) is wrapped by the second sealing ring (10) and extends through the center of the foam defoaming net (11) to the bottom of the tank (1).

5. A gas-liquid separator for a storage tank venting system according to claim 1, characterized in that: The defoaming mesh (11) has small holes, and through holes (1101) are provided on both sides of the defoaming mesh (11). A fixing post (1201) is connected in the through hole (1101), and the fixing post (1201) is fixed on the fixing ring (12) on the inner wall of the tank (1).

6. A gas-liquid separator for a storage tank venting system according to claim 1, characterized in that: A first sealing ring (7) is installed between the rotating shaft (601) of the motor (6) and the top of the tank (1). A sleeve (8) is provided at the lower end of the first sealing ring (7). The rotating shaft (601) is located inside the sleeve (8). The bottom end of the sleeve (8) is connected to the top of the separator (5).

7. A gas-liquid separator for a storage tank venting system according to claim 1, characterized in that: A bracket (101) is installed at the bottom of the tank (1).

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