阅读说明：本技术 一种旋风分离器 (Cyclone separator ) 是由 李元 尹恒 丁宁 袁献忠 李祎璞 刘伟 范玲 王永明 王训锋 于 2019-10-15 设计创作，主要内容包括：本发明公开一种旋风分离器,包括竖向设置的第一壳体以及竖向设置在第一壳体内部的第一导流组件和罩体,第一壳体的下端设有与其内部连通的第一排渣口,第一导流组件具有进气口和出气口,第一导流组件的出气口朝下,第一导流组件的进气口朝上并延伸至贯通第一壳体上端,第一导流组件用于使进入其内部的气流同向螺旋旋转向下流动并经其出气口排出至第一壳体内,罩体设置在第一导流组件出气口的下方,且罩体的罩口朝下,第一壳体的下端设有与其内部连通的出气口,第一壳体的出气口内延至经罩体的罩口伸入罩体内,且第一壳体的出气口与罩体的内壁之间具有间隙。本发明所述旋风分离器实现了气体杂质的多次分离,有效的提高了所述旋风分离器的分离效率。(The invention discloses a cyclone separator, which comprises a first shell, a first flow guide assembly and a cover body, wherein the first shell is vertically arranged, the first flow guide assembly and the cover body are vertically arranged in the first shell, the lower end of the first shell is provided with a first slag discharge port communicated with the interior of the first shell, the first flow guide assembly is provided with an air inlet and an air outlet, the air outlet of the first flow guide assembly faces downwards, the air inlet of the first flow guide assembly faces upwards and extends to the upper end of the first shell, the first flow guide assembly is used for enabling air flow entering the first shell to spirally turn in the same direction and flow downwards and to be discharged into the first shell through the air outlet of the first flow guide assembly, the cover body is arranged below the, and the cover opening of the cover body faces downwards, the lower end of the first shell is provided with an air outlet communicated with the interior of the first shell, the air outlet of the first shell extends into the cover body through the cover opening of the cover body, and a gap is formed between the air outlet of the first shell and the inner wall of the cover body. The cyclone separator realizes multiple times of separation of gas impurities and effectively improves the separation efficiency of the cyclone separator.)

1. A cyclone separator is characterized by comprising a first shell (10) which is vertically arranged, and a first flow guide assembly (11) and a cover body (12) which are vertically arranged in the first shell, wherein the lower end of the first shell (10) is provided with a first slag discharge port communicated with the interior of the first shell, the first flow guide assembly (11) is provided with an air inlet and an air outlet, the air outlet of the first flow guide assembly (11) faces downwards, the air inlet of the first flow guide assembly (11) faces upwards and extends to the upper end of the first shell (10), the first flow guide assembly (11) is used for enabling air flow entering the first shell to spirally turn downwards in the same direction and discharge the air flow into the first shell (10) through the air outlet of the first flow guide assembly (11), the cover body (12) is arranged below the air outlet of the first flow guide assembly (11), and the cover opening of the cover body (12) faces downwards, the lower extreme of first casing (10) is equipped with the gas outlet rather than inside intercommunication, extend to the warp in the gas outlet of first casing (10) the cover mouth of the cover body (12) stretches into in the cover body (12), just the gas outlet of first casing (10) with have the clearance between the inner wall of the cover body (12), flow in the air current process in first casing (10) the cover mouth flows in the cover body (12), pass through the gas outlet of first casing (10) flows out.

2. Cyclone separator according to claim 1, wherein the first flow guiding assembly (11) comprises a first inlet duct (111) and a first flow guiding body (112), the first air inlet pipe (111) is vertically arranged in the first shell (10), and the upper end thereof extends upwards to the upper end penetrating through the first shell (10), the first flow guiding body (112) is arranged in the first air inlet pipe (111) and close to the upper end of the first shell (10), the first flow guiding body (112) is used for enabling the airflow flowing into the first air inlet pipe (111) to spirally rotate in the same direction and flow downwards, the upper end of the first air inlet pipe (111) forms an air inlet of the first flow guide assembly (11), the lower end of the first air inlet pipe (111) forms an air outlet of the first flow guide assembly (11), the cover (12) is disposed below the first intake pipe (111).

3. The cyclone separator as claimed in claim 2, wherein the lower end side wall of the first inlet pipe (111) is provided with a plurality of vertically arranged ventilation slots (113) at even intervals in the circumferential direction.

4. A cyclone separator according to claim 2 or 3, characterised in that the cross-sectional area of the hood (12) increases from top to bottom, the upper end of the hood (12) extending upwards into the first inlet duct (111).

5. A cyclone separator according to any one of claims 1-3, further comprising an annular screen (13), the inner ring of the screen (13) being connected to the circumferential wall of the air outlet of the first housing (10), and the outer ring of the screen (13) being connected to the inner wall of the cover (12).

6. The cyclone separator according to any one of the claims 1-3, further comprising a second housing (20) and a second flow guiding assembly (21), wherein the second housing (20) is vertically arranged below the first housing (20), the lower end of the second housing is provided with a second slag discharge port communicated with the interior of the first housing, the second flow guiding assembly (21) is vertically arranged inside the second housing (20), the second flow guiding assembly (21) is provided with an air inlet and an air outlet, the air outlet of the second flow guiding assembly (21) faces downwards, the air inlet of the second flow guiding assembly (21) extends upwards and upwards to penetrate through the upper end of the second housing (20) and is communicated with the air outlet of the first housing (20), the second flow guiding assembly (21) is used for enabling the air flow flowing into the interior of the second housing to spirally turn downwards in the same direction and to be discharged into the second housing (20) through the air outlet of the second flow guiding assembly, the lower end of the second shell (20) is provided with an air outlet communicated with the interior of the second shell, and the air outlet of the second shell (20) is positioned below the air outlet of the second flow guide assembly (21).

7. The cyclone separator as claimed in claim 6, wherein the second flow guiding assembly (21) comprises a second air inlet pipe (211) and a second flow guiding body (212), the second air inlet pipe (211) is vertically arranged in the second shell (20), the upper end of the second air inlet pipe extends upwards to penetrate through the second shell (20) and is communicated with the air outlet of the first shell (10), the second flow guiding body (212) is arranged in the second air inlet pipe (211) and is close to the upper end of the second shell (20), the second flow guiding body (212) is used for enabling the air flowing into the second air inlet pipe (212) to spirally turn downwards in the same direction, the upper end of the second air inlet pipe (211) forms the air inlet of the second flow guiding assembly (21), and the lower end of the second air inlet pipe forms the air outlet of the second flow guiding assembly (21).

8. The cyclone separator as claimed in claim 7, wherein the outlet of the second housing (20) extends upwardly to a lower end extending into the second inlet pipe (211), and a gap is provided between the outlet of the second housing (20) and an inner wall of the second inlet pipe (211).

Technical Field

The invention relates to the field of natural gas pipeline transportation, in particular to a natural gas dry gas sealing gas source pretreatment system.

Background

The natural gas long-distance pipeline needs to establish a booster station along the way, and realizes the long-distance transportation of the natural gas through the multistage compression of the compressor. The compressor is the heart transported by the natural gas pipeline, the safety and the reliability of the operation of the compressor are related to whether the unit can stably work for a long period, and once the unit breaks down due to sealing, the downstream gas supply is directly influenced. In order to prevent or inhibit natural gas from leaking into the atmosphere along the rotary shaft end of the compressor and maintain the normal operation of a compressor main machine, a sealing device is arranged at the shaft end of the compressor in the prior art, so that the consumption of materials and energy can be effectively reduced, the environmental pollution is prevented, and the safety of equipment is protected.

The dry gas sealing system at the shaft end of the compressor is one of important technologies, but solid or liquid impurities in a long-distance natural gas transmission pipeline can cause damage to a dynamic ring and a static ring of a dry gas seal if entering the dry gas sealing system of the centrifugal compressor, so that a dry gas sealing filter element of a compressor unit of a gas station of the gas transmission pipeline is frequently replaced, the service life of the dry gas sealing filter element is shortened, the leakage rate of natural gas is increased, the compressor is stopped, the safe operation of the compressor unit is seriously influenced, and the damage is caused to precision equipment such as a downstream pressure regulator, a downstream flowmeter and the like. Therefore, if the natural gas quality cannot meet the air inlet requirement of the dry gas sealing system of the compressor, the dry gas sealing system cannot ensure the safe operation of the compressor unit.

In order to ensure the normal operation of the dry gas sealing system of the natural gas long-distance pipeline station compressor, a gravity separator or a cyclone separator is usually arranged in front of a filtering separator of the station compressor dry gas sealing gas source pretreatment system, so that the burden of the filtering separator is favorably reduced, and the service life of the dry gas sealing travel is prolonged.

The existing dry gas sealing gas source has the characteristics of low flow rate and high pressure, and the pressure loss of natural gas caused by a dry gas sealing system of a compressor is required to be small in order to reduce energy loss in the conveying process.

The existing direct-flow cyclone dust collector utilizes the rotation of air flow to enable impurities in the air flow to be centrifuged to the periphery, the air in the central part is taken and conveyed to the next process, the impurities in the peripheral part are discharged together with the air, so a large amount of target air loss is caused, the discharged impurity-containing air needs additional cost for secondary purification, the pressure loss is large, and due to the limitation of the pipe length of the direct-flow cyclone dust collector, some impurities moving close to the axis in the traditional direct-flow cyclone dust collector are not separated under the action of centrifugal force in time, the air directly enters the exhaust pipe of the direct-flow cyclone dust collector, and the dust removal efficiency of the direct-flow cyclone dust collector is low.

Disclosure of Invention

In order to solve the technical problem, the invention provides a cyclone separator which can separate impurities in gas for many times, and the adopted technical scheme is as follows:

a cyclone separator comprises a first shell, a first flow guide assembly and a cover body, wherein the first shell is vertically arranged, the first flow guide assembly and the cover body are vertically arranged in the first shell, a first slag discharge port communicated with the first shell is formed in the lower end of the first shell, the first flow guide assembly is provided with an air inlet and an air outlet, the air outlet of the first flow guide assembly faces downwards, the air inlet of the first flow guide assembly faces upwards and extends to the upper end of the first shell in a penetrating mode, the first flow guide assembly is used for enabling air flow entering the first shell to spirally turn in the same direction and spirally downwards and discharging the air flow into the first shell through the air outlet of the first flow guide assembly, the cover body is arranged below the air outlet of the first flow guide assembly, a cover opening of the cover body faces downwards, an air outlet communicated with the first shell is formed in the lower end of the first shell, and the air outlet of the first shell extends into the cover body through the cover opening, and a gap is arranged between the air outlet of the first shell and the inner wall of the cover body, and the air flow flowing into the first shell flows into the cover body through the cover opening and flows out through the air outlet of the first shell.

Preferably, the first flow guide assembly includes a first air inlet pipe and a first flow guide body, the first air inlet pipe is vertically disposed in the first housing, and the upper end of the first air inlet pipe extends upward to the upper end penetrating through the first housing, the first flow guide body is mounted in the first air inlet pipe and is close to the upper end of the first housing, the first flow guide body is used for enabling the air flow flowing into the first air inlet pipe to spirally turn downward in the same direction, the upper end of the first air inlet pipe forms an air inlet of the first flow guide assembly, the lower end of the first air inlet pipe forms an air outlet of the first flow guide assembly, and the cover body is disposed below the first air inlet pipe.

Preferably, a plurality of vertically arranged ventilation grooves are uniformly arranged on the side wall of the lower end of the first air inlet pipe at intervals in the circumferential direction.

Preferably, the cross-sectional area of the cover body gradually increases from top to bottom, and the upper end of the cover body extends upwards to extend into the first air inlet pipe.

Preferably, the air outlet cover further comprises an annular filter screen, an inner ring of the filter screen is connected with the circumferential wall body of the air outlet of the first shell, and an outer ring of the filter screen is connected with the inner wall of the cover body.

Preferably, the slag remover further comprises a second shell and a second flow guide assembly, the second shell is vertically arranged below the first shell, a second slag discharge port communicated with the interior of the second shell is formed in the lower end of the second shell, the second flow guide assembly is vertically arranged inside the second shell, the second flow guide assembly is provided with an air inlet and an air outlet, the air outlet of the second flow guide assembly faces downwards, the air inlet of the second flow guide assembly upwards and upwards extends to the upper end of the second shell and is communicated with the air outlet of the first shell, the second flow guide assembly is used for enabling air flowing into the second shell to spirally flow downwards in the same direction and is discharged into the second shell through the air outlet of the second flow guide assembly, the air outlet of the second shell is formed in the lower end of the second shell and is located below the air outlet of the second flow guide assembly.

Preferably, the second flow guide assembly comprises a second air inlet pipe and a second flow guide body, the second air inlet pipe is vertically arranged in the second shell, the upper end of the second air inlet pipe extends upwards to the position penetrating through the second shell and is communicated with the air outlet of the first shell, the second flow guide body is arranged in the second air inlet pipe and is close to the upper end of the second shell, the second flow guide body is used for enabling air flow flowing into the second air inlet pipe to spirally rotate in the same direction and flow downwards, the upper end of the second air inlet pipe forms an air inlet of the second flow guide assembly, and the lower end of the second air inlet pipe forms the air outlet of the second flow guide assembly.

Preferably, the air outlet of the second housing extends upwards to the lower end of the second air inlet pipe, and a gap is formed between the air outlet of the second housing and the inner wall of the second air inlet pipe.

The cyclone separator realizes multiple times of separation of gas impurities and effectively improves the separation efficiency of the cyclone separator.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic structural view of a cyclone separator according to embodiment 1 of the present invention;

FIG. 2 is a schematic structural view of a cyclone separator according to embodiment 2 of the present invention;

FIG. 3 is a schematic structural view of a cyclone separator according to embodiment 3 of the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The principles and features of the present invention are described below in conjunction with the accompanying fig. 1-3, which are provided by way of example only to illustrate the present invention and not to limit the scope of the present invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.