CN216498322U - Gas-liquid separator - Google Patents

Abstract

The utility model discloses a gas-liquid separation device, and relates to the technical field of gas-liquid separation. The gas-liquid separation device comprises a shell, an installation cylinder and a separation unit. The separation unit is arranged in the installation cylinder body. The shell is internally provided with a cavity, the installation cylinder is arranged on the shell, and the first end of the installation cylinder is communicated with the cavity. The casing is provided with the air inlet, and the air inlet communicates with the cavity, and the orientation of air inlet is tangent with the corresponding curved surface of installation barrel outer wall. The distance between the first end of the installation cylinder and the bottom of the chamber is a first distance, the distance between the air inlet and the bottom of the chamber is a second distance, and the first distance is larger than the second distance. After entering the cavity from the air inlet, the gas-liquid mixture flows upwards along the installation cylinder. The scheme can solve the problem that the gas-liquid separation device has low space utilization rate of equipment.

Description

Gas-liquid separator

Technical Field

The utility model relates to the technical field of gas-liquid separation, in particular to a gas-liquid separation device.

Background

Natural gas is widely applied to the technical field of industrial and household gas as a multi-component mixed gaseous fossil fuel. The natural gas pipeline is processed after being exploited and then is conveyed to a designated area. The produced natural gas is mixed with particulates and liquids. Therefore, it is necessary to remove particulates and liquids in the produced natural gas using a gas-liquid separation device before the natural gas is transported to a specified area.

At present, most of gas-liquid separation devices for natural gas separation adopt pipelines to connect different separation devices step by step, and then remove particles or liquid in natural gas through different separation devices. A plurality of splitter pass through the pipe connection and realize separating step by step, though can guarantee the separation precision, but occupation space is big, and inconvenient installation. In the related art, although a plurality of separation devices are combined to form a combined separation device, the related art has a low utilization rate of equipment space and has a large difficulty in repairing each stage of separation device.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a gas-liquid separation device, which aims to solve the problem that the gas-liquid separation device in the related art has low utilization rate of equipment space.

In order to solve the problems, the utility model adopts the following technical scheme:

the gas-liquid separation device comprises a shell, an installation cylinder and a separation unit;

the separation unit is arranged in the installation cylinder;

a cavity is arranged in the shell, the installation cylinder is arranged in the shell, and the first end of the installation cylinder is communicated with the cavity;

the shell is provided with an air inlet, the air inlet is communicated with the cavity, and the direction of the air inlet is tangent to the corresponding curved surface of the outer side wall of the installation cylinder;

the distance between the first end of the installation cylinder and the bottom of the chamber is a first distance, the distance between the air inlet and the bottom of the chamber is a second distance, and the first distance is larger than the second distance; and after entering the cavity from the air inlet, the gas-liquid mixture flows upwards along the installation cylinder.

The technical scheme adopted by the utility model can achieve the following beneficial effects:

in the gas-liquid separation device disclosed by the embodiment of the utility model, the direction of the gas inlet is tangent to the corresponding curved surface of the outer side wall of the mounting cylinder body, so that a gas-liquid mixture entering the cavity from the gas inlet can spirally flow upwards in the cavity. The large particle liquid mixed in the gas can be separated from the gas under the action of gravity or centrifugal force. Specifically, the large-particle liquid can collide with the inner wall of the chamber and flow downwards under the action of centrifugal force, or can be dropped to the bottom of the chamber under the action of gravity. And, because first distance is greater than the second distance, the air inlet is located the below of installation barrel promptly, and then makes the large granule liquid among the gas-liquid mixture in the cavity can be opposite with gaseous flow direction under the effect of gravity, and then the liquid and the gas separation in the gas-liquid mixture of being convenient for prevents that large granule liquid from getting into in the installation barrel. Because the separation unit is arranged in the installation cylinder body, the gas-liquid mixture entering the installation cylinder body is further separated through the gas-liquid separation unit, and the gas-liquid separation precision is further improved. This scheme can make full use of casing inner space, realizes rotation separation, gravity separation and the separation of separation unit, and then can effectively improve equipment inner space's utilization ratio.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of a gas-liquid separation apparatus disclosed in a first embodiment of the present invention;

FIG. 2 is a sectional view of a gas-liquid separator according to a first embodiment of the present invention;

FIG. 3 is a schematic view of a gas-liquid separating apparatus disclosed in a second embodiment of the present invention;

FIG. 4 is a sectional view of a gas-liquid separator disclosed in a second embodiment of the utility model;

FIG. 5 is a schematic illustration of a flow path of a gas-liquid mixture as disclosed in one embodiment of the present invention;

FIG. 6 is an enlarged view of the gas inlet of the gas-liquid separating apparatus according to the embodiment of the present invention;

FIG. 7 is an enlarged view of the second end of the first or second flow conduit as disclosed in one embodiment of the present invention;

FIG. 8 is a schematic illustration of the flow path of the gas within the chamber as disclosed in one embodiment of the utility model;

FIG. 9 is a partially enlarged view of a third separation unit of the gas-liquid separation apparatus according to one embodiment of the present invention;

FIG. 10 is a partially enlarged view of a gas-liquid separating device in a second separating unit according to an embodiment of the present invention;

FIG. 11 is a schematic view of a gas-liquid separation plate according to an embodiment of the present invention.

In the figure: 100-a housing; 110 — a first chamber; 120-a second chamber; 130-a third chamber; 140-an air inlet; 150-ring cavity; 160-first level meter interface; 170-a second level meter interface; 180-a liquid discharge port; 210-a first mounting cylinder; 220-a second mounting cylinder; 230-a third mounting cylinder; 231-an exhaust port; 310-a first separation unit; 311-gas-liquid separation plate; 3111-a bent portion; 3112-a first baffle; 312-a flow guide channel; 313-a first downcomer; 320-a second separation unit; 321-a wire mesh; 322-a second mounting plate; 330-a third separation unit; 331-a first mounting plate; 3311-inlet port of air; 332-a filter element; 333-installation cavity; 334-a second downcomer; 400-a cover body; 500-liquid accumulation bag; 600-a first draft tube; 700-a second draft tube; 800-a second baffle plate; 900-mounting rack.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. 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.

The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to fig. 1 to 11.

Referring to fig. 1 to 5, a gas-liquid separation apparatus according to an embodiment of the present application includes a housing 100, a mounting cylinder, and a separation unit. The housing 100 is illustratively a base structure that may provide a mounting base or mounting space for mounting the cartridge and/or the separation unit.

Referring to fig. 1 to 4, the separation unit is disposed in the installation cylinder. For example, the separation unit may be fixed in the mounting cylinder by bolts. Of course, there are many ways in which the separation unit is disposed within the mounting cylinder, such as snap-fit connection, welding, etc. For this reason, the present application does not limit the specific manner in which the separation unit is provided in the installation cylinder.

Referring to fig. 2 or 4, a chamber is provided in the housing 100, a mounting cylinder is provided in the housing 100, and a first end of the mounting cylinder communicates with the chamber. The housing 100 is provided with an air inlet 140, the air inlet 140 is communicated with the chamber, and the orientation of the air inlet 140 is tangential to the corresponding curved surface of the outer side wall of the mounting cylinder. The distance between the first end of the mounting cylinder and the bottom of the chamber is a first distance, the distance between the air inlet 140 and the bottom of the chamber is a second distance, and the first distance is greater than the second distance. After entering the chamber through the gas inlet 140, the gas-liquid mixture flows upward along the installation cylinder.

The orientation of the gas inlet 140 refers to the flow direction of the gas-liquid mixture entering the chamber from the gas inlet 140. There are many embodiments in which the inlet port 140 is oriented tangentially to the corresponding curved surface of the outer sidewall of the mounting cartridge. For example, the opening direction of the air inlet 140 may be directly tangent to the corresponding curved surface of the outer side wall of the mounting cylinder, and a guide pipe may be further disposed on the air inlet 140, so that the air inlet direction is changed by bending the guide pipe, and the orientation of the air inlet 140 is tangent to the corresponding curved surface of the outer side wall of the mounting cylinder. Of course, a baffle plate can be further arranged at the air inlet 140 to change the air inlet direction through the baffle plate, so that the direction of the air inlet 140 is tangent to the corresponding curved surface of the outer side wall of the installation cylinder body. Therefore, the present embodiment does not limit the specific embodiment in which the air inlet 140 is oriented tangentially to the corresponding curved surface of the outer sidewall of the mounting barrel.

Referring to fig. 5, the gas-liquid mixture enters the chamber through the gas inlet 140, so that the gas-liquid mixture can rotate around the corresponding axis of the installation cylinder under the action of the gas inlet 140 and the inner wall of the chamber. Because the density of the liquid is higher than that of the gas, namely the weight of the liquid particles is larger, the liquid can approach the inner wall of the chamber along with the rotation of the gas-liquid mixture in the chamber until the liquid particles impact the inner wall of the chamber and flow to the bottom of the chamber along the inner wall of the chamber. In addition, the first distance is greater than the second distance, i.e., the air inlet 140 is located below the mounting cylinder. The density of the liquid is greater than the density of the gas. The gas-liquid mixture is under the effect of gravity, and large granule liquid can fall to the cavity bottom, and gaseous then can follow the cavity spiral upward flow to in getting into the installation barrel, so that the interior separator unit of installation barrel can further separate the gas-liquid mixture. In addition, the movement direction of the liquid particles is opposite to the movement direction of the gas, so that the gas-liquid separation device is beneficial to improving the separation precision of the gas-liquid mixture.

In the above embodiment, the gas can be separated by gravity and rotation in the chamber, so that not only can various separation modes be realized and the gas-liquid separation precision be improved, but also the rotation separation and the gravity separation can be synchronously realized in the chamber, thereby being beneficial to improving the utilization rate of the inner space of the shell 100 and simplifying the structure of the gas-liquid separation device.

Referring to fig. 3 and 4, the mounting cylinder extends through the housing 100, a first end of the mounting cylinder at least partially protrudes from an inner wall of the chamber, and the mounting cylinder and the inner wall of the chamber form an annular cavity 150 around the mounting cylinder.

Referring to fig. 5 and 6, after the gas-liquid mixture enters the chamber, the gas-liquid mixture flows along the inner wall of the chamber in a rotating manner under the action of the gas inlet 140 and the inner wall of the chamber, and the liquid content of the gas-liquid mixture is higher at positions farther from the center of rotation. Therefore, the higher the liquid content of the gas-liquid mixture in the chamber at the position opposite to the annular chamber 150, the lower the liquid content of the gas-liquid mixture at the position opposite to the installation cylinder.

In the above embodiment, the gas-liquid mixture at the position opposite to the annular cavity 150 can be prevented from directly entering the installation cylinder, and the residence time of the gas-liquid mixture in the chamber can be further prolonged, so that the gas-liquid mixture can be separated under the action of gravity or centrifugal force. This scheme can promote the separation effect of rotation separation and gravity separation, reduces the separation pressure of installation barrel internal separation unit, is of value to promoting the whole separation precision of gas-liquid separation device.

Referring to fig. 1 to 5, the gas-liquid separation apparatus further includes a cover 400, the second end of the installation cylinder protrudes out of the outer wall of the housing 100, the cover 400 is disposed at the second end of the installation cylinder, and the cover 400 is detachably connected to the second end of the installation cylinder.

Illustratively, the cover 400 may be detachably coupled to the mounting cylinder by screws or bolts. Of course, the cover 400 and the mounting cylinder can be detachably connected in other manners, and for example, the cover 400 and the mounting cylinder can be in threaded fit, or the cover 400 and the mounting cylinder can be connected by a snap. For this reason, the present embodiment does not limit the specific implementation of the detachable connection between the cover 400 and the mounting cylinder.

In the above embodiment, the cover 400 is detachably connected to the second end of the mounting cylinder. Under the condition of carrying out maintenance to the separating unit, can be through opening lid 400 for the separating unit can be directly held the dismantlement from the second of installation barrel, and then need not to dismantle other parts in the gas-liquid separation unit, and then can reduce gas-liquid separation device's the maintenance degree of difficulty, so that overhaul the maintenance, and can reach different separation precision through the type or the model of changing the separating unit, in order to realize that the separating unit is controllable.

In an alternative embodiment, the housing 100 is provided with a first gauge interface 160 and a second gauge interface 170. Further, the first gauge port 160 and the second gauge port 170 are each provided with a gauge to detect a discharge condition of liquid accumulated in the chamber by the gauge. For example, the first liquid level meter interface 160 may be disposed at a position corresponding to a highest liquid level in the chamber, and the second liquid level meter interface 170 may be disposed at a position corresponding to a lowest liquid level in the chamber, so as to monitor a liquid accumulation condition in the chamber through the first liquid level meter interface 160 and the second liquid level meter interface 170, so as to prevent the liquid accumulation level in the chamber from being too high or too low. Optionally, the first gauge interface 160 is less from the bottom of the chamber than the gas inlet 140.

Referring to fig. 3 and 4, the gas-liquid separation device further includes a liquid accumulation bag 500, and the liquid accumulation bag 500 includes a liquid accumulation cavity, and the liquid accumulation cavity is communicated with the bottom of the chamber. Illustratively, the effusion cell 500 is disposed separately from the housing 100, and the distance of the effusion cell 500 from the ground is less than the distance of the housing 100 from the ground. Specifically, the liquid accumulation bag 500 may be disposed below the housing 100, so that the liquid at the bottom of the chamber may directly flow into the liquid accumulation bag 500. Further, the dropleg may be in communication with the bottom of the chamber via a conduit. In this embodiment, the liquid accumulation bag 500 can prevent the air flow in the chamber from impacting the separated liquid surface, and further can prevent the liquid from splashing in the chamber. Further, can set up the level gauge interface on hydrops package 500 to through the liquid level gauge monitoring hydrops intracavity liquid level height, too high or low excessively of liquid level in avoiding hydrops package 500.

Referring to fig. 1 to 5, the number of the chambers is plural, and the installation cylinder and the hydrops chamber are in one-to-one correspondence with the chambers. For example, the inner space of the casing 100 may be partitioned into a plurality of chambers by providing partitions. Further, a plurality of chambers may be horizontally arranged along the housing 100. Referring to fig. 2 and 4, the case 100 may be a horizontally disposed canister, and a space inside the canister is partitioned into a plurality of chambers by disposing partitions inside the canister. This embodiment can increase the length of the flow path of the gas-liquid mixture in the gas-liquid separation device on the one hand and the number of types of separation units on the other hand by forming a plurality of chambers in the housing 100.

Referring to fig. 1, a plurality of installation barrels communicate with each cavity respectively, and each separation unit sets up respectively in the installation barrel that corresponds, and then can overhaul the separation unit that sets up in each installation barrel through dismantling the lid 400 of each installation barrel second end and maintain, and then can further reduce the degree of difficulty that gas-liquid separation device overhauld and maintained. In addition, the number of the cavities is multiple, the installation cylinder and the liquid accumulation cavity are in one-to-one correspondence with the cavities, so that the separation units of different types can be replaced according to the requirements of users, or the separation units of different separation precisions can be replaced, different filtering precisions can be realized, and the separation precision of the gas-liquid separation device can be controlled.

In the gas-liquid separation device according to the above embodiment, when the separation accuracy of the gas-liquid separation device needs to be changed or adjusted, the cover 400 attached to the cylinder may be removed to replace each separation unit, so as to adjust the separation accuracy of the gas-liquid separation device, thereby achieving controllable separation accuracy of the gas-liquid separation device.

Referring to fig. 1 to 5, the gas-liquid separation apparatus may further include a mounting bracket 900. Illustratively, the housing 100 may be fixedly disposed on the mounting bracket 900.

Referring to fig. 1 to 5, the gas-liquid separation apparatus further includes a first guide pipe 600, a first installation cylinder 210, and a second installation cylinder 220, the housing 100 is provided with a first chamber 110 and a second chamber 120, the separation unit includes a first separation unit 310 and a second separation unit 320, the first separation unit 310 is disposed in the first installation cylinder 210, and the second separation unit 320 is disposed in the second installation cylinder 220. The first mounting cylinder 210 is in communication with the first chamber 110 and the second mounting cylinder 220 is in communication with the second chamber 120. The gas inlet 140 communicates with the first chamber 110. The first end of the first guide pipe 600 penetrates through the first installation cylinder 210 and is connected with the first separation unit 310, the second end of the first guide pipe 600 penetrates through the housing 100 and is communicated with the second chamber 120, and the direction of the air outlet of the second end of the first guide pipe 600 is tangential to the corresponding curved surface of the outer side wall of the second installation cylinder 220.

In this embodiment, the first chamber 110 and the second chamber 120 may be respectively configured to perform rotational separation and gravity separation, which not only improves the gas-liquid separation accuracy of the gas-liquid separation device, but also simplifies the structure of the gas-liquid separation unit. In addition, the first separation unit 310 and the second separation unit 320 are respectively arranged in the first installation cylinder 210 and the second installation cylinder 220, so that the first separation unit 310 and the second separation unit 320 can be conveniently repaired and maintained. For example, in case that the first separation unit 310 requires service maintenance, the first separation unit 310 can be serviced by opening the cover 400 at the second end of the first installation cylinder 210. Similarly, the second separation unit 320 in the second installation cylinder 220 may be serviced by opening the cover 400 of the second end of the second installation cylinder 220.

In addition, the gas-liquid mixture passing through the first separation unit 310 enters the second chamber 120 along the first guide pipe 600 and rotates in the second chamber 120, so that large particles carried out from the first separation unit 310 by the gas flow can be separated by rotation and gravity, and liquid drops carried out from the first separation unit 310 by the gas flow can be prevented from entering the second separation unit 320.

The gas outlet of the second end of the first flow guide tube 600 faces the corresponding curved surface of the outer side wall of the second installation cylinder 220 in a tangential manner, which means that the gas-liquid mixture enters the gas inlet direction of the second chamber 120 from the second end of the first flow guide tube 600. For example, a through hole facing the tangential direction of the corresponding curved surface of the outer side wall of the second mounting cylinder 220 may be directly formed on the side wall close to the second end of the first flow guide pipe 600; alternatively, the first flow guide tube 600 is arranged in an arc shape, so that the curved surface of the second end of the first flow guide tube 600, which is opposite to the outer side wall of the second installation cylinder 220, is tangent. It is of course also possible to change the direction of the air intake at the second end of the first flow duct 600 by means of baffles at the second end of the first flow duct 600. For this reason, the embodiment of the present application does not limit the specific implementation manner that the corresponding curved surfaces of the air outlets of the second end of the first flow guide pipe 600 facing the outer sidewall of the second installation cylinder 220 are tangent.

Referring to fig. 11, the first separation unit 310 includes a plurality of gas-liquid separation plates 311, the gas-liquid separation plates 311 are arranged at intervals, and a flow guide channel 312 is formed between two adjacent gas-liquid separation plates 311. The gas-liquid separation plate 311 has at least one bent portion 3111, and the bent portion 3111 is provided with a first baffle 3112, the first baffle 3112 protrudes toward the flow guide channel 312, and the first baffle 3112 is disposed obliquely relative to the flow guide direction of the flow guide channel 312.

Illustratively, first baffle 3112 has an arc-shaped groove facing in a direction opposite to a flow direction of the gas-liquid mixture in guide passage 312, so that first baffle 3112 can act on the flowing gas-liquid mixture and make the gas-liquid mixture form a vortex in guide passage 312.

In the above embodiment, the gas-liquid separation plate 311 is provided with the bent portion 3111, so that the length of the flow path of the gas-liquid mixture in the gas-liquid separation device can be increased. In addition, the first baffle 3112 is disposed at the bent portion 3111, which is not only beneficial for the liquid in the gas-liquid mixture to adhere to the first baffle 3112, but also beneficial for the separation of the liquid and the gas by changing the flow direction of the gas-liquid mixture in the guide channel 312 through the first baffle 3112 to form a vortex, thereby improving the separation accuracy of the gas-liquid separator.

The first separation unit 310 further includes a housing and a first downcomer 313, the gas-liquid separation plate 311 is disposed in the housing, a first end of the first downcomer 313 is communicated with a bottom of the housing, a second end of the first downcomer 313 extends toward a bottom of the first chamber 110, and a distance from the second end of the first downcomer 313 to the bottom of the first chamber 110 is smaller than a distance from the gas inlet 140 to the bottom of the first chamber 110.

In the above embodiment, by providing the first downcomer 313, the liquid separated by the first separation unit 310 can be prevented from being splashed by the gas flow again. Further, the second end of the first downcomer 313 may extend below the liquid level at the bottom of the first chamber 110 to prevent the gas-liquid mixture from entering the first separation unit 310 along the first downcomer 313, ensuring that the gas-liquid mixture can pass through the first separation unit 310.

Referring to fig. 1 to 5, the gas-liquid separation apparatus further includes a second guide pipe 700, the separation unit further includes a third separation unit 330, the chamber further includes a third chamber 130, the installation cylinder further includes a third installation cylinder 230, the third installation cylinder 230 is communicated with the third chamber 130, the third separation unit 330 is disposed in the third installation cylinder 230, a first end of the second guide pipe 700 penetrates through the second installation cylinder 220 and is connected with the second separation unit 320, a second end of the second guide pipe 700 penetrates through the housing 100 and is communicated with the third chamber 130, and an orientation of an air outlet of the second end of the second guide pipe 700 is tangential to a corresponding curved surface of an outer side wall of the third installation cylinder 230.

It should be noted that the second duct 700 may be the same as the first duct 600, and the structure of the second duct 700 is not further described for this embodiment.

In an alternative embodiment, the second baffle 800 is disposed at each of the air inlet 140, the second end of the first flow guide 600 and the second end of the second flow guide 700, so as to change the air inlet direction of the gas-liquid mixture into the first chamber 110, the second chamber 120 and the third chamber 130 respectively through the second baffle 800.

Illustratively, the third mounting cylinder 230 has an exhaust port 231. For example, the gas outlet 231 may communicate with the third separation unit 330, so that the gas separated by the third separation unit 330 may be discharged from the gas outlet 231.

Referring to fig. 10, the second separation unit 320 may include a wire mesh 321 and a second mounting plate 322. Illustratively, the number of the second mounting plates 322 may be two. Referring to fig. 10, the second mounting plate 322 is coupled to the second mounting cylinder 220, and the wire mesh 321 is disposed between the two second mounting plates 322. Further, a plurality of through holes are provided on the second mounting plate 322 so that the gas-liquid mixture can pass through the second mounting plate 322 and pass through the wire mesh 321, and the liquid in the gas-liquid mixture can be attached to the wire mesh 321. Illustratively, liquid impurities collide with the wire mesh filaments and are attached to the filament surfaces due to the inertia of the rising gas-liquid mixture. The dispersion of the mist on the surface of the filament and the gravity sedimentation of the mist enable the mist to form larger liquid drops and flow to the junction of the two filaments along the filament. The wettability of the filament, the surface tension of the liquid and the capillary action of the filament make the droplet larger and larger until the droplet is so large that the resultant force of the rising force of the gas and the surface tension of the liquid is exceeded by the gravity generated by the droplet itself, and the droplet separates from the filament and falls. Accordingly, the second separation unit 320 may separate the entrainment in the gas-liquid mixture from the gas. Alternatively, the wire mesh 321 may be a mist screen.

Referring to fig. 9, the third separation unit 330 includes a first mounting plate 331 and a filter cartridge 332, the first mounting plate 331 is connected to the third mounting cylinder 230, and the first mounting plate 331 and the third mounting cylinder 230 form a mounting chamber 333. The filter element 332 is provided in the mounting chamber 333, and the filter element 332 is cylindrical. An air inlet 3311 is disposed on the first mounting plate 331, and the air inlet 3311 is respectively communicated with the third chamber 130 and the filter element 332. The third mounting cylinder 230 has an exhaust port 231, and the exhaust port 231 communicates with the mounting chamber 333.

In an alternative embodiment, the third separation unit 330 further comprises a second downcomer 334, a first end of the second downcomer 334 is communicated with the bottom of the installation cavity 333, a second end of the second downcomer 334 extends toward the bottom of the third chamber 130, and a second end of the second downcomer 334 is located at a distance from the bottom of the third chamber 130 that is less than a distance from a second end of the second draft tube 700 to the bottom of the third chamber 130. Illustratively, the second end of the second downcomer 334 is located below the liquid level of the bottom of the third chamber 130.

Referring to fig. 1 to 5, the gas-liquid separation device further includes a liquid discharge port 180. The liquid outlet 180 may be in communication with the bottom of the chamber or the bottom of the drip chamber so that liquid in the bottom of the chamber or the drip chamber may be drained from the liquid outlet 180.

In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (11)

1. A gas-liquid separation device is characterized by comprising a shell (100), an installation cylinder and a separation unit;

the separation unit is arranged in the installation cylinder;

a cavity is arranged in the shell (100), the mounting cylinder is arranged in the shell (100), and the first end of the mounting cylinder is communicated with the cavity;

the shell (100) is provided with an air inlet (140), the air inlet (140) is communicated with the cavity, and the direction of the air inlet (140) is tangential to the corresponding curved surface of the outer side wall of the mounting cylinder;

the distance between the first end of the mounting cylinder and the bottom of the chamber is a first distance, the distance between the air inlet (140) and the bottom of the chamber is a second distance, and the first distance is greater than the second distance; after entering the chamber from the gas inlet (140), the gas-liquid mixture flows upwards along the installation cylinder.

2. The gas-liquid separation device of claim 1, wherein the mounting cylinder extends through the housing (100), a first end of the mounting cylinder at least partially protrudes from an inner wall of the chamber, and the mounting cylinder and an inner sidewall of the chamber form an annular cavity (150) surrounding the mounting cylinder.

3. The gas-liquid separation device according to claim 2, further comprising a cover (400), wherein the second end of the installation cylinder protrudes from an outer wall of the housing (100),

the cover body (400) is arranged at the second end of the installation cylinder body, and the cover body (400) is detachably connected with the second end of the installation cylinder body.

4. The gas-liquid separation device according to claim 1, further comprising a liquid accumulation bag (500), the liquid accumulation bag (500) comprising a liquid accumulation chamber, the liquid accumulation chamber communicating with a bottom of the chamber.

5. The gas-liquid separation device according to claim 4, wherein the number of the chambers is plural, and the installation cylinder and the liquid accumulation chamber are in one-to-one correspondence with the chambers.

6. The gas-liquid separation device according to any one of claims 1 to 5, further comprising a first guide pipe (600), a first installation cylinder (210), and a second installation cylinder (220), wherein the housing (100) is provided with a first chamber (110) and a second chamber (120), and wherein the separation unit comprises a first separation unit (310) and a second separation unit (320), wherein the first separation unit (310) is disposed in the first installation cylinder (210), and the second separation unit (320) is disposed in the second installation cylinder (220);

the first mounting cylinder (210) being in communication with the first chamber (110), the second mounting cylinder (220) being in communication with the second chamber (120);

the first end of the first guide pipe (600) penetrates through the first installation cylinder (210) and is connected with the first separation unit (310), the second end of the first guide pipe (600) penetrates through the shell (100) and is communicated with the second chamber (120), and the direction of the air outlet of the second end of the first guide pipe (600) is tangent to the corresponding curved surface of the outer side wall of the second installation cylinder (220).

7. The gas-liquid separation device according to claim 6, wherein the first separation unit (310) comprises a plurality of gas-liquid separation plates (311), the gas-liquid separation plates (311) are arranged at intervals, and a flow guide channel (312) is formed between two adjacent gas-liquid separation plates (311);

the gas-liquid separation board (311) is provided with at least one bent part (3111), the bent part (3111) is provided with a first baffle (3112), the first baffle (3112) protrudes towards the flow guide channel (312), and the first baffle (3112) is inclined relative to the flow guide direction of the flow guide channel (312).

8. The gas-liquid separation device according to claim 7, wherein the first separation unit (310) further comprises a housing and a first downcomer (313), the gas-liquid separation plate (311) is disposed in the housing, a first end of the first downcomer (313) is communicated with the bottom of the housing, a second end of the first downcomer (313) extends toward the bottom of the first chamber (110), and a distance from the second end of the first downcomer (313) to the bottom of the first chamber (110) is smaller than a distance from the gas inlet (140) to the bottom of the first chamber (110).

9. The gas-liquid separation device according to claim 6, further comprising a second draft tube (700), the separation unit further comprising a third separation unit (330), the housing (100) further being provided with a third chamber (130), the mounting cylinder further comprising a third mounting cylinder (230),

the third installation cylinder (230) is communicated with the third chamber (130), the third separation unit (330) is arranged in the third installation cylinder (230),

the first end of the second guide pipe (700) penetrates through the second installation cylinder (220) and is connected with the second separation unit (320), the second end of the second guide pipe (700) penetrates through the shell (100) and is communicated with the third chamber (130), and the direction of an air outlet of the second end of the second guide pipe (700) is tangent to the corresponding curved surface of the outer side wall of the third installation cylinder (230).

10. The gas-liquid separation device according to claim 9, wherein the third separation unit (330) comprises a first mounting plate (331) and a filter element (332), the first mounting plate (331) is connected to the third mounting cylinder (230), and the first mounting plate (331) and the third mounting cylinder (230) form a mounting cavity (333);

the filter element (332) is arranged in the installation cavity (333), and the filter element (332) is cylindrical; an air inlet hole (3311) is formed in the first mounting plate (331), and the air inlet hole (3311) is communicated with the third chamber (130) and the filter element (332) respectively;

the third mounting cylinder (230) has an exhaust port (231), and the exhaust port (231) communicates with the mounting cavity (333).

11. The gas-liquid separation device according to claim 10, wherein the third separation unit (330) further comprises a second downcomer (334), a first end of the second downcomer (334) communicates with the bottom of the installation cavity (333), a second end of the second downcomer (334) extends toward the bottom of the third chamber (130), and a distance from the second end of the second downcomer (334) to the bottom of the third chamber (130) is smaller than a distance from the second end of the second draft tube (700) to the bottom of the third chamber (130).

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