CN201212764Y

CN201212764Y - High-speed swirl flow gas separation and liquefaction device

Info

Publication number: CN201212764Y
Application number: CNU2008200636248U
Authority: CN
Inventors: 闫家义
Original assignee: 闫家义
Current assignee: Sichuan Enpu Energy and Power Equipment Co., Ltd.
Priority date: 2008-06-02
Filing date: 2008-06-02
Publication date: 2009-03-25
Anticipated expiration: 2018-06-02

Abstract

The utility model relates to a device for separating and liquefying high-speed vortex gas, which aims to solve the problems of complicated structure and operation, high manufacture cost and greatly influenced efficiency by the work conditions of inlet gas in the prior art. The gas separating and liquefying device comprises an inlet end, an inlet pipe, an outlet end, a jet pipe, an active section, a diffuser section and an separation outlet, wherein the inlet pipe and the outlet end are communicated with the inlet end, and the jet pipe, the active section and the diffuser section are communicated and are sequentially arranged between the inlet pipe and the outlet end; the separation outlet is arranged on the side wall at the tail end of the active section and is communicated with the active section, and vortex machines are arranged between the inlet end and the outlet end and are mounted in any one or two or all of the inlet pipe, the jet pipe and the active section; the jet pipe comprises a jet pipe throat and a contraction section which are sequentially communicated, the contraction section is communicated with the inlet pipe, and if a gas velocity in the jet pipe reaches a supersonic velocity, a divergent section communicated with the jet pipe throat and the active section is also arranged. The utility model can be used for liquefying the gas and separating partial constituents from the gas.

Description

High speed vortex flow gas separates and liquefying plant

Technical field

The utility model relates to gas and separates and the device that liquefies, and the gas that particularly can be used for industry needs such as oil, chemical industry, natural gas and metallurgy separates and liquefying plant.

Background technology

At present in the reality of work of industries such as oil, chemical industry, metallurgy is used, the low temperature processing that utilizes expander refrigeration that the separation of gas and liquefaction are extensively adopted, promptly have the gas of certain pressure or be compressed to the gas of certain pressure, at first cool off by heat exchanger, lower the temperature through the decompressor expansion degree of depth then, pass through heat exchanger (or passing through choke valve again) cooling again, carry out the self-loopa refrigeration process of pure gas, reach gas liquefaction and separate; Another kind method adopts the outer circulation refrigeration process, reaches gas liquefaction and the purpose of separating.

The deficiency that above-mentioned two kinds of methods exist is: the structure of device and complicated operation, and the manufacturing cost height, it is very big that the efficient that liquefaction separates is influenced by the inlet gas operating mode.

The utility model content

The purpose of this utility model is to solve that existing gas separates and liquefying plant structure and complicated operation, manufacturing cost height, efficient are subjected to the inlet gas operating mode to influence big problem, provide a kind of simple in structure, energy consumption is low, liquefaction separative efficiency height, stable, the gas that is fit to various inlet gas operating modes separates and liquefying plant.

The purpose of this utility model realizes by following technical proposals:

High speed vortex flow gas separates and liquefying plant, be to comprise the entrance point that is positioned at two ends and the tubular structure of the port of export, the tubular housing of this device is the abnormally-structured of multistage contraction and expansion, entrance point is connected with the inlet tube that is communicated with it, also be disposed with jet pipe, active section, the diffuser section that is communicated with between inlet tube and the port of export, and be arranged on the terminal sidewall of active section the outlet that separates with its connection, also be provided with vortice in the cavity between the entrance point and the port of export.

Described active section comprises the expansion arc cavity and the contraction section cavity of connection.

Described vortice is installed in the inside at any place in inlet tube, jet pipe, the active section.

Described vortice is installed in the inside at any two places in inlet tube, jet pipe, the active section or three places.

Described jet pipe includes contraction section, the caliber nozzle throat littler than contraction section that is communicated with successively, and contraction section is communicated with inlet tube, if the air velocity in the jet pipe reaches supersonic speed, also is provided with the expansion segment that is communicated with nozzle throat, and expansion segment is communicated with active section.

End in the described diffuser section also is provided with blade-carrying transfer.

Described vortice is connected with the power part that drives its rotation.

Described transfer is connected with the power part that drives its blade rotation.

Adopt the utility model of said structure, entrance point can be connected to high-pressure air source, and the port of export is connected to low-pressure gas source, and air communication is crossed the pressure reduction at two ends, the passage of the described device of flowing through; Vortice is not (when air-flow passes through, it can be inactive state, also can be the rotation status that drives by power part), can play guide functions, air communication is crossed at that time can be produced rotational flow, air-flow adiabatic expansion in jet pipe is quickened to flow then, form high speed or even supersonic airstream, gas temperature reduces simultaneously, makes the part components condense in the gas, forms drop, gas enters active section subsequently, portion gas continues condensation, and therefore drop size continues to increase, and the centrifugal force of vortex flow is thrown to drop the inwall of active section, drop in the inwall condensation of active section is separated from gas, thereby realizes that gas separates and liquefaction.

As seen, adopt the utility model of said structure, compared with prior art, have simple in structure, energy consumption is low, liquefaction separative efficiency height, stable, the advantage that is fit to various inlet gas operating modes, can be used for the part component of gas liquefaction and divided gas flow, or be used to reduce gas dew point, reach outer defeated requirement.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Number in the figure: the 1st, inlet tube, the 2nd, entrance point, the 3rd, vortice, the 4th, jet pipe, 4a are contraction sections, 4b is a nozzle throat, and 4c is an expansion segment, the 5th, and active section, 5a are the expansion arc cavitys, 5b is the contraction section cavity, the 6th, separate outlet, the 7th, diffuser section, the 8th, transfer, the 9th, the port of export.

The specific embodiment

Below in conjunction with specific embodiments and the drawings the utility model is further described.

As shown in Figure 1, high speed vortex flow gas separates and liquefying plant is that multistage shrinks and the tubular structure that expands, its cross section can be different shapes such as circular, square, polygon, comprises the entrance point 2, inlet tube 1, jet pipe 4, active section 5, diffuser section 7 and the port of export 9 that are communicated with successively.

Jet pipe 4 includes contraction section 4a, the caliber nozzle throat 4b littler than contraction section that is communicated with successively, if air velocity reaches supersonic speed, the expansion segment 4c that is communicated with nozzle throat 4b can also be set.

Active section 5 comprises the expansion arc cavity 5a and the contraction section cavity 5b of connection.

Vortice 3 can be installed in the inlet tube 1 of jet pipe 4 upstream ends, also can be installed in the jet pipe 4, can also install in the active section 5 of jet pipe 4 downstream parts, and vortice 3 is all installed at any two places or three places in as required can also above-mentioned three places.

Vortice 3 can be static device, also can be the whirligig that drives by power part so that gas is through behind the vortice, on the basis of axial flow more in addition radially centrifugal flow and tangential rotational flow.

The end of active section 5, be positioned at expansion arc cavity 5a is connected flex point with contraction section cavity 5b sidewall be provided with its connection separate outlet 6.

Diffuser section 7 has supersonic diffuser or subsonic diffuser as required, be provided with transfer 8 in its end, the rotating vane that this transfer 8 has static blade or driven by power part so that the rotation function of a part of air-flow changes axial kinetic energy into, improves gas pressure.

During use, entrance point 2 connects high-pressure air source, the port of export 9 connects low-pressure gas source, air communication is crossed pressure reduction between the two, make gas inlet end 2 enter inlet tube 1, jet pipe 4, active section 5, under the effect of vortice 3, the air-flow of axial flow produce radially centrifugal flow and tangential rotational flow, this eddy airstream is adiabatic the acceleration in jet pipe 4, and gas temperature reduces rapidly, and therefore the portion gas component begins condensation, form droplet, droplet becomes big drop gradually owing to more condensation of gas in flow process and gas leaves jet pipe 4 always, enters active section 5.

In active section 5, because the centrifugal force that vortex flow produces throws drop to the inwall of active section 5, therefore most of drop accumulates near the zone of wall and flows, the drop of condensation and a part of gas can be separated from primary air by separating outlet 6, remaining gas leaves active section 5, enters diffuser section 7.

Air communication is crossed diffuser section 7, and speed reduces, and has recovered the pressure of a part of original entrance point, by transfer 8, changes the rotation function of a part of air-flow into axial kinetic energy, discharges through the port of export 9 then.

Separate with existing gas and liquefying plant is compared, present embodiment has following advantage:

1, efficient height

In the present embodiment, gas in thermal insulation acceleration, step-down, temperature-fall period and the deceleration in diffuser section 7 subsequently of jet pipe 4, boost, temperature-rise period is all near isentropic procedure, energy loss seldom, so J-T valve efficient height that not only freezes than existing throttling expansion, also than the efficient height of the decompressor of constant entropy expansion, through test, under the identical situation of device downstream chilling temperature, present embodiment has the higher rate of recovery, when the aftercooler temperature is-10 ℃, present embodiment is about higher by 30% than the J-T valve rate of recovery, and is approximately higher by 10% than the decompressor rate of recovery; When the aftercooler temperature was-30 ℃, present embodiment was about higher by 20% than the J-T valve rate of recovery, and is approximately higher by 7% than the decompressor rate of recovery.

2, energy consumption is low

Under the identical situation of the rate of recovery, use present embodiment to compare with using the J-T valve, can reduce power consumption 50～70%; Can reduce work done during compression 15～20% than decompressor, particularly the import bleed pressure is too high or use under the uneconomic situation of decompressor, and the advantage of present embodiment is more outstanding.

3, volume is little

Present embodiment compared with prior art, size is little, it is little to take up room, mobility is better, can reduce and handle and mounting cost.

4, small investment, operating cost are low

The apparatus structure of present embodiment is simple, so small investment; Energy consumption is low and do not need regular maintenance, and operating cost is low.

5, non-environmental-pollution

This device does not need do not have toxic and harmful, liquid discharge, so environment is not had influence to chemical addition agents such as gas interpolation hydrate inhibitors yet.

6, safe and reliable

This device is safe and reliable to operation, maintenance is simple.

Claims

1, high speed vortex flow gas separates and liquefying plant, it is the tubular structure that comprises the entrance point (2) that is positioned at two ends and the port of export (9), it is characterized in that, the tubular housing of this device is the abnormally-structured of multistage contraction and expansion, entrance point (2) is connected with the inlet tube (1) that is communicated with it, also be disposed with the jet pipe (4) that is communicated with between inlet tube (1) and the port of export (9), active section (5), diffuser section (7), and be arranged on the terminal sidewall of active section (5) with its connection separate outlet (6), also be provided with vortice (3) in the cavity between the entrance point (2) and the port of export (9).

2, high speed vortex flow gas separates and liquefying plant according to claim 1, it is characterized in that described active section (5) comprises the expansion arc cavity (5a) and the contraction section cavity (5b) of connection.

3, high speed vortex flow gas separates and liquefying plant according to claim 1, it is characterized in that described vortice (3) is installed in the inside at any place in inlet tube (1), jet pipe (4), the active section (5).

4, high speed vortex flow gas separates and liquefying plant according to claim 1, it is characterized in that, described vortice (3) is installed in the inside at any two places in inlet tube (1), jet pipe (4), the active section (5) or three places.

5, separate and liquefying plant as high speed vortex flow gas as described in claim 1 or 2 or 3 or 4, it is characterized in that, described jet pipe (4) includes contraction section (4a), the caliber nozzle throat (4b) littler than contraction section (4a) that is communicated with successively, and contraction section (4a) is communicated with inlet tube (1).

6, separate and liquefying plant as high speed vortex flow gas as described in the claim 5, it is characterized in that described jet pipe (4) also comprises the expansion segment (4c) that is communicated with nozzle throat (4b), expansion segment (4c) is communicated with active section (5).

7, separate and liquefying plant as high speed vortex flow gas as described in the claim 5, it is characterized in that, the end in the described diffuser section (7) also is provided with blade-carrying transfer (8).

8, separate and liquefying plant as high speed vortex flow gas as described in claim 1 or 2 or 3 or 4, it is characterized in that, described vortice (3) is connected with the power part that drives its rotation.

9, separate and liquefying plant as high speed vortex flow gas as described in the claim 6, it is characterized in that, described vortice (3) is connected with the power part that drives its rotation.

10, separate and liquefying plant as high speed vortex flow gas as described in the claim 6, it is characterized in that, described transfer (8) is connected with the power part that drives its blade rotation.