CN211987523U

CN211987523U - Pipeline type two-stage cyclone gas-liquid separation mechanism and separator

Info

Publication number: CN211987523U
Application number: CN201922297927.7U
Authority: CN
Inventors: 贾爱云; 石文梁
Original assignee: Hangzhou Gauge & Moment Technology Co ltd
Current assignee: Hangzhou Gauge & Moment Technology Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-11-24
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a pipeline type two-stage cyclone gas-liquid separation mechanism and a separator, which comprises an outer cylinder, an inner cylinder, a first-stage cyclone core and a second-stage cyclone core, wherein the cyclone direction of the second-stage cyclone core is consistent with that of the first-stage cyclone core; the outer cylinder and the inner cylinder are connected in a closed manner to form an interlayer, and the side wall of the front part of the inner cylinder is provided with a plurality of drainage grooves leading to the interlayer; the back part of the interlayer is also externally connected with a liquid discharge pipe, and the front end of the inner cylinder is externally connected with an exhaust pipe; the first-stage cyclone core is arranged at the rear part of the inner cylinder, the second-stage cyclone core is arranged in front of the first-stage cyclone core and is provided with a channel with the inner cylinder, and the rear inlet of the second-stage cyclone core is connected with the interlayer through a return pipe.

Description

Pipeline type two-stage cyclone gas-liquid separation mechanism and separator

Technical Field

The utility model relates to a pipeline formula vapour and liquid separator technical field especially relates to a pipeline formula two-stage whirl gas-liquid separation mechanism and separator.

Background

When natural gas, or multistage compressed gas long distance transport, because the resistance effect, the change of pressure, the change of temperature has a lot of condensate to separate out in the pipeline, and a large amount of condensate is to accelerating the corruption of pipeline, has great influence to compressor unit normal operating at the back, and the impeller can be strikeed to the condensate, accelerates the corrosive action to parts such as impeller simultaneously, serious lead to compressor unit can't normally work for a long time. And meanwhile, condensate is separated out, so that the pipeline conveying resistance is increased, and the energy consumption is increased.

The existing main separator adopts a gas liquid separating tank, adopts a wire mesh demister to separate condensate, mainly depends on gravity sedimentation and wire mesh trapping, and the devices are very huge in size, need to be independently constructed for foundation civil engineering, large in occupied area, high in gas pressure and large in gas amount, large in device diameter, thick in container wall, and long in construction period, and the installation and investment cost is very high in manufacturing and transportation. The operation needs regular maintenance, and the operation and maintenance cost is high.

The existing simpler two-stage cyclone separator generally adopts an arrangement form, namely two groups of cyclone blades are arranged in a pipeline in front and back, and the gas after primary separation is subjected to secondary cyclone to discharge liquid particles in the gas; however, the gas-liquid separation effect of the form is not good enough, so that the problems of incomplete liquid removal, waste caused by gas carried in the liquid and the like are easily caused. Meanwhile, the equipment needs to be long and is not suitable for working conditions of large air volume.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a pipeline formula two-stage whirl gas-liquid separation mechanism and separator aims at solving current two-stage whirl separator gas-liquid separation effect thorough problem inadequately.

In order to achieve the above object, the utility model provides a following technical scheme: a pipeline type two-stage cyclone gas-liquid separation mechanism comprises an outer cylinder, an inner cylinder, a first-stage cyclone core and a second-stage cyclone core, wherein the cyclone direction of the second-stage cyclone core is consistent with that of the first-stage cyclone core; the outer cylinder and the inner cylinder are connected in a closed manner to form an interlayer, and the side wall of the front part of the inner cylinder is provided with a plurality of drainage grooves leading to the interlayer; the back part of the interlayer is also externally connected with a liquid discharge pipe, and the front end of the inner cylinder is externally connected with an exhaust pipe;

the first-stage cyclone core is arranged at the rear part of the inner cylinder, the second-stage cyclone core is arranged in front of the first-stage cyclone core and is provided with a channel with the inner cylinder, and the rear inlet of the second-stage cyclone core is connected with the interlayer through a return pipe.

Preferably, the primary cyclone core is composed of a primary mounting cone and a primary cyclone blade assembly on the periphery; the second-stage cyclone core is composed of a second-stage mounting cylinder and a conical second-stage cyclone blade assembly at the front end.

Preferably, the primary mounting cone cylinder and the secondary mounting cylinder are integrally connected through a conical part; the return pipe is fixed with the bottom of the mounting cone cylinder in a sealing way, and the first-stage mounting cone cylinder and the conical part are provided with channels communicated with the return pipe and led to the second-stage mounting cylinder.

Preferably, the exhaust pipe of the inner cylinder extends into the inner cylinder and is provided with a conical hopper.

Preferably, the blade outlet of the first-stage swirl blade assembly forms a certain included angle beta with the end face, preferably 15-30 degrees, so that the inflowing gas can generate swirl rapidly.

Preferably, the cyclone separator further comprises a bracket for supporting and fixing the first-stage cyclone core and the second-stage cyclone core.

A separator with the pipeline type two-stage cyclone gas-liquid separation mechanism comprises a container, wherein a plurality of mounting plates for mounting the pipeline type two-stage cyclone gas-liquid separation mechanism are arranged in the container, and the container is externally connected with a collecting pipe connected with a liquid discharge pipe.

The utility model has the advantages that:

1: the separation efficiency is high, condensate in the pipeline can be effectively removed, and gas drying is guaranteed; the operation elasticity is large, the device is suitable for the working condition of high-pressure gas, and the maximum liquid treatment capacity can be realized by adopting gas self-circulation two-stage separation;

2: no movable part, high mechanical strength, strong abrasion resistance, difficult blockage and maintenance-free; the structure is compact, the volume is small, the pipeline can be directly installed on a pipeline, the pipeline can be arranged in one step, and excessive foundation construction is not needed; small volume, low investment cost and convenient disassembly and assembly.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a diagram of an application product of the present invention.

Detailed Description

As shown in fig. 1, a pipeline type two-stage cyclone gas-liquid separation mechanism comprises an outer cylinder 1, an inner cylinder 2, a first-stage cyclone core 3 and a second-stage cyclone core 4, wherein the cyclone direction of the second-stage cyclone core 3 is consistent with that of the first-stage cyclone core 3; the outer cylinder 1 and the inner cylinder 2 are connected in a closed manner to form an interlayer 5, and the side wall of the front part of the inner cylinder 2 is provided with a plurality of drainage grooves 6 leading to the interlayer 5; the rear part of the interlayer 5 is also externally connected with a liquid discharge pipe 8, the front end of the inner cylinder is externally connected with an exhaust pipe 9, and the exhaust pipe 9 extends into the inner cylinder 2 and is provided with a conical hopper 10;

the first-stage cyclone core 3 is arranged at the rear part of the inner cylinder 2, the second-stage cyclone core 4 is arranged in front of the first-stage cyclone core 3 and is provided with a channel with the inner cylinder 2, and a rear inlet of the second-stage cyclone core 4 is connected with the interlayer 5 through a return pipe 7.

The primary cyclone core 3 consists of a primary mounting cone and a primary cyclone blade assembly on the periphery; the second-stage cyclone core 4 consists of a second-stage mounting cylinder and a conical second-stage cyclone blade assembly at the front port; the primary mounting conical cylinder and the secondary mounting cylinder are integrally connected through a conical part; the return pipe 7 is fixed with the bottom of the mounting cone cylinder in a sealing way and can be used for supporting; the first-stage mounting conical cylinder and the conical part are provided with a channel communicated with the return pipe 7 and communicated with the second-stage mounting cylinder.

The working principle is as follows: after gas enters the inner barrel 2 of the two-stage cyclone gas-liquid separation mechanism, under the action of the first-stage cyclone blade assembly of the first-stage cyclone core 3, the mixed medium quickly generates cyclone, because the gas and the liquid have density difference, the liquid with high density is preferentially thrown to the inner wall of the inner barrel 2 under the action of centrifugal force and is captured to form a liquid film, the captured liquid film is flowed into the interlayer 5 through the drain tank 6 under the action of surface tension and air flow, and finally flows out through the drain pipe 8.

A small part of gas (carried by a liquid film and released after flowing in the interlayer 5) enters from the drainage groove 6, and because the inner cylinder 2 swirls, the center of the front end of the secondary swirling core 4 is low-pressure, the gas returns to the secondary swirling core 4 to the front part of the inner cylinder 2 through the return pipe 7 and the channel to form pressure circulation, so that the liquid film can conveniently flow into the drainage groove 6; the return air rapidly generates rotational flow again through the conical second-stage rotational flow blade assembly of the second-stage rotational flow core 4 to generate secondary rotational flow separation, so that the maximum liquid treatment capacity can be realized; the clean gas separated by cyclone flow at the front part of the inner cylinder is discharged from the exhaust pipe 10 through the central low-pressure area.

As shown in fig. 2, the separator with the pipeline type two-stage cyclone gas-liquid separation mechanism comprises a container 11, wherein a plurality of mounting plates 12 of the pipeline type two-stage cyclone gas-liquid separation mechanism are mounted in the container 11, and a collecting pipe 13 connected with a liquid discharge pipe 8 is externally connected to the container 11.

The mixed medium enters a separator I chamber from an N1 pipe orifice and then enters a plurality of two-stage cyclone gas-liquid separation mechanisms arranged on the mounting plate 12 for separation.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. A pipeline type two-stage cyclone gas-liquid separation mechanism is characterized by comprising an outer cylinder (1), an inner cylinder (2), a first-stage cyclone core (3) and a second-stage cyclone core (4), wherein the cyclone direction of the second-stage cyclone core (4) is consistent with that of the first-stage cyclone core (3); the outer cylinder (1) and the inner cylinder (2) are connected in a closed manner to form an interlayer (5), and the side wall of the front part of the inner cylinder (2) is provided with a plurality of drainage grooves (6) leading to the interlayer (5); the rear part of the interlayer (5) is also externally connected with a liquid discharge pipe (8), and the front end of the inner cylinder is externally connected with an exhaust pipe (9);

the first-stage cyclone core (3) is arranged at the rear part of the inner cylinder (2), the second-stage cyclone core (4) is arranged in front of the first-stage cyclone core (3) and is provided with a channel with the inner cylinder (2), and the rear inlet of the second-stage cyclone core (4) is connected with the interlayer (5) through a return pipe (7).

2. The pipeline type two-stage cyclone gas-liquid separating mechanism according to claim 1, wherein the one-stage cyclone core (3) is composed of a one-stage mounting cone and a peripheral one-stage cyclone blade assembly; and the second-stage cyclone core (4) is composed of a second-stage mounting cylinder and a conical second-stage cyclone blade assembly at the front port.

3. The ducted two-stage cyclone gas-liquid separation mechanism according to claim 2, wherein the primary mounting cylinder and the secondary mounting cylinder are integrally connected by a tapered portion; the backflow pipe (7) is fixed with the bottom of the mounting conical cylinder in a sealing mode, and a channel communicated with the backflow pipe (7) and communicated with the second-stage mounting cylinder is arranged on the first-stage mounting conical cylinder and the conical part.

4. A ducted two stage cyclonic gas-liquid separation mechanism as claimed in claim 1, wherein the exhaust duct (9) of the inner barrel (2) extends into the inner barrel (2) and is fitted with a conical hopper (10).

5. The ducted two-stage cyclone gas-liquid separator according to claim 2 wherein the blade outlet of the first stage cyclone blade assembly forms an angle β with the end face.

6. A tubular two-stage cyclonic gas-liquid separating apparatus as claimed in claim 1, further comprising a support for supporting and fixing the first stage cyclone core (3) and the second stage cyclone core (4).

7. A separator having a ducted two stage cyclonic gas-liquid separation mechanism as claimed in any one of claims 1 to 6, comprising a vessel (11), a mounting plate (12) for mounting a plurality of said ducted two stage cyclonic gas-liquid separation mechanisms being provided within the vessel (11), the vessel (11) further being externally connected to a manifold (13) connected to the discharge pipe (8).