CN-224212619-U - LNG gas-liquid separator

Abstract

The utility model belongs to the technical field of gas-liquid separators, and discloses an LNG gas-liquid separator which comprises a tank body, wherein an air inlet pipe is fixedly connected to the side surface of the tank body, a liquid discharge pipe is fixedly arranged at the bottom end of the tank body, an air outlet port is connected to the top end of the tank body, a baffle plate with a conical structure is fixedly connected to the middle part inside the tank body to divide the inside of the tank body into two chambers, the gas flow can be spirally moved through a spiral guide vane and a guide plate, the centrifugal force is gradually increased in the spiral movement process, the gas-liquid separation efficiency is improved, residual liquid drops are further blocked and separated through a baffle plate, the carrying of gas to liquid is effectively reduced, the small liquid drops in mist-containing gas flow are promoted to be converged into large liquid drops through ultrasonic waves by an ultrasonic generator, the mist drops are conveniently converged under the action of the spiral structure and the baffle plate, and the gas-liquid separation performance is improved.

Inventors

• HE WEI
• XIA YONG

Assignees

• 成都欣诺低温设备有限公司

Dates

Publication Date

20260508

Application Date

20250516

Claims (8)

1. 1. The LNG gas-liquid separator comprises a tank body and is characterized in that an air inlet pipe is fixedly connected to the side face of the tank body, a liquid discharge pipe is fixed to the bottom end of the tank body, an air outlet port is connected to the top end of the tank body, a partition plate with a conical structure is fixedly connected to the middle of the inner portion of the tank body, the inner portion of the tank body is divided into two chambers, an exhaust pipe is fixedly connected to the bottom face of the partition plate, the top end of the exhaust pipe extends to the upper side of the partition plate and is used for communicating the upper chamber and the lower chamber of the partition plate, a spiral guide vane is fixedly connected to the outer wall face of the exhaust pipe, and the axial diameters of the spiral guide vane gradually decrease from top to bottom.
2. 2. The LNG gas-liquid separator according to claim 1 wherein the bottom surface of the separator is fixedly connected with a guide plate, and the inner side end of the air inlet pipe penetrates the surface of the tank body and extends to the inner side of the guide plate.
3. 3. The LNG gas-liquid separator according to claim 1 wherein the top end of the exhaust pipe is fixedly connected with a plurality of groups of baffle plates in an annular array, the upper side of the exhaust pipe is provided with a liquid baffle plate, and the liquid baffle plate is fixedly connected to the top ends of the baffle plates.
4. 4. The LNG gas-liquid separator as claimed in claim 3, wherein the separator has a tapered structure.
5. 5. The LNG gas-liquid separator according to claim 4 wherein the baffle has a flow guide pipe fixedly connected to one side of the surface.
6. 6. The LNG gas-liquid separator as claimed in claim 5 wherein the baffle is wave-shaped.
7. 7. The LNG gas-liquid separator as claimed in claim 3 wherein ultrasonic generators are symmetrically mounted on one side of the tank body adjacent to the baffle plate.
8. 8. The LNG gas-liquid separator according to claim 1 wherein a wire mesh demister is arranged at one side of the top end of the tank body close to the gas outlet port.

Description

LNG gas-liquid separator Technical Field The utility model belongs to the technical field of gas-liquid separators, and particularly relates to an LNG gas-liquid separator. Background The core technology of the natural gas from coal is a methanation process, and the methanation process firstly needs to carry out gas-liquid separation on purified gas from refined desulfurization, so that the subsequent methanation reaction can be ensured. The gas-liquid separator adopted at present generally uses the inertia of fog particles in moving airflow through a separation baffle plate, and the fog particles deviate from the flow direction of the airflow under the action of inertia by suddenly changing the flow direction of the airflow, and impact on the separation baffle plate to be separated, but in the separation mode, the separated liquid is easily carried away by subsequent gas, so that the gas-liquid separation effect is poor, and the subsequent methanation reaction is influenced. Therefore, an LNG gas-liquid separator is proposed in view of the above problems. Disclosure of utility model In order to solve the problems in the background art, the utility model provides the LNG gas-liquid separator, which effectively reduces the carrying of gas to liquid, improves the gas-liquid separation efficiency of natural gas, reduces the equipment maintenance cost and ensures the stable operation of the subsequent natural gas treatment process through the cooperation of a centrifugal structure and a corrugated baffle plate. In order to achieve the above purpose, the LNG gas-liquid separator comprises a tank body, wherein an air inlet pipe is fixedly connected to the side face of the tank body, a liquid discharge pipe is fixedly connected to the bottom end of the tank body, an air outlet port is connected to the top end of the tank body, a partition plate with a conical structure is fixedly connected to the middle of the inside of the tank body, the inside of the tank body is divided into two chambers, an exhaust pipe is fixedly connected to the bottom face of the partition plate, the top end of the exhaust pipe extends to the upper side of the partition plate and is used for communicating the upper chamber and the lower chamber of the partition plate, spiral guide vanes are fixedly connected to the outer wall face of the exhaust pipe, and the axial diameters of the spiral guide vanes are gradually reduced from top to bottom. Preferably, the bottom surface of the partition plate is fixedly connected with a guide plate, and the inner side end of the air inlet pipe penetrates through the surface of the tank body and extends to the inner side of the guide plate. Preferably, the top of the exhaust funnel is fixedly connected with a plurality of groups of baffle plates in an annular array, the upper side of the exhaust funnel is provided with a liquid baffle plate, and the liquid baffle plate is fixedly connected with the top of the baffle plates. Preferably, the partition is in a tapered configuration. Preferably, one side of the surface of the partition board is fixedly connected with a flow guide pipe. Preferably, the baffles are wave-shaped. Preferably, ultrasonic generators are symmetrically arranged on one side, close to the baffle plate, of the tank body. Preferably, a wire mesh demister is arranged at one side of the top end of the tank body, which is close to the air outlet port. Compared with the prior art, the utility model has the following beneficial effects: 1. According to the utility model, the airflow can spirally move through the spiral guide vane and the guide plate, the centrifugal force is gradually increased in the spiral movement process, the gas-liquid separation efficiency is improved, the residual liquid drops are further blocked and separated through the baffle plate, the carrying of the gas on the liquid is effectively reduced, the ultrasonic generator is used for promoting the aggregation of small liquid drops in the mist-containing airflow into large liquid drops, and the mist drops are conveniently aggregated and dropped under the action of the spiral structure and the baffle plate, so that the gas-liquid separation performance is improved. Drawings FIG. 1 is a schematic diagram of the overall structure of the present utility model; FIG. 2 is a cross-sectional view of a tank of the present utility model; FIG. 3 is a schematic view of the flow guide tube and baffle plate according to the present utility model; FIG. 4 is a schematic view of the structure of the baffle and the baffle in the present utility model. The device comprises a tank body 1, an air inlet pipe 2, an air outlet pipe 3, a liquid discharge pipe 4, an air outlet port 5, a partition board 6, a guide plate 7, an exhaust funnel 8, a spiral guide vane 9, an ultrasonic generator 10, a silk screen foam remover 11, a guide pipe 12, a baffle plate 13 and a liquid baffle plate. Detailed Description The following description of the embodiments