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Supersonic-speed high-pressure throttling condensing device

A high-pressure throttling and condensing device technology, applied in steam condensation, chemical instruments and methods, separation methods, etc., can solve the problem of reducing supersonic throttling condensation effects and liquid separation effects, without ideal technical solutions, and destroying low-temperature and low-pressure environments To achieve the effect of increasing the amount of liquid condensation and condensation efficiency, ingenious design of the overall structure, and reducing kinetic energy loss and entropy increase

Active Publication Date: 2016-04-20
NANJING BEIDA GONGDAO INNOVATION +1
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  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the shock wave phenomenon will destroy the low temperature and low pressure environment in the separation section, causing the precipitated liquid droplets to re-volatize into gas, thereby significantly reducing the supersonic throttling condensation effect and liquid separation effect
Those skilled in the art would like to solve this problem, but this has never been an ideal technical solution

Method used

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  • Supersonic-speed high-pressure throttling condensing device
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  • Supersonic-speed high-pressure throttling condensing device

Examples

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Embodiment 1

[0019] Embodiment 1: see figure 2 , image 3 , a supersonic high-pressure throttling condensing device, the high-pressure throttling condensing device sequentially includes an inlet section IJ, a Rafael nozzle section JTQS, a rectification separation section SO, and an outlet section OO from the inlet to the outlet 1 , an intermediate structure 201 is set in the Lafal nozzle section JTQS. The intermediate structure can transform the normal shock wave that is generally present when the high-pressure and high-speed airflow passes through the expansion section of the Lafal nozzle into an oblique shock wave, thereby greatly reducing the pressure, density and temperature increase of the airflow in this area, that is, reducing the shock wave. The loss of kinetic energy and the increase of entropy caused by the wave can improve the liquid condensation in the expansion section and the separation section and the condensation efficiency of the entire high-pressure throttling device. ...

Embodiment 2

[0020] Example 2: see figure 2 , image 3 , as an improvement of the present invention, the intermediate structure 201 is a wedge-shaped or spindle-shaped or tapered structure, and adopts different shapes for different pipes, wherein the plane wedge is suitable for rectangular pipes; the tapered and spindle-shaped structures The body is suitable for axisymmetric pipes.

Embodiment 3

[0021] Embodiment 3: see figure 2 , image 3 , as an improvement of the present invention, an annular device 103 is arranged in the outlet section. The main purpose of setting the ring device is to accelerate the process of liquid precipitation. After setting the ring device, the cooling device becomes a double-layer structure, that is: the outer ring chamber or pipeline OO 1 , used to quickly export condensed liquid; axisymmetric inner pipe OO 2 , used to output the remaining gas. Generally, the volume of the condensed liquid is much smaller than the volume of the remaining gas (the density difference between the two is 10 3 order of magnitude), therefore, the outer pipe OO 1 The cross-sectional area of ​​the inner pipe is much smaller than the OO 2 . , the Rafal nozzle section is composed of a subsonic contraction section and a superfactor expansion section, wherein the subsonic contraction section gradually reduces the pipe cross section, and the superfactor expansio...

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Abstract

The invention relates to a supersonic-speed high-pressure throttling condensing device. The high-pressure throttling condensing device is characterized by comprising an inlet segment, a Rafal spray pipe segment, a rectification and separation segment and an outlet segment in sequence from an inlet to an outlet, the Rafal spray pipe segment is internally provided with an intermediate structural body, and the intermediate structural body is in a wedge shape or a spindle shape or a conical shape. The device is ingenious and compact in integral structural design and low in cost, the intensity of shock waves inside an expansion segment of the condensing device and energy losses caused by the shock waves can be remarkably lowered, and therefore the throttling condensing effect and liquid separating efficiency are remarkably improved.

Description

technical field [0001] The invention relates to a cooling device, in particular to a supersonic high-pressure throttling condensing device, which belongs to the technical field of condensing devices. Background technique [0002] As a clean and high-quality energy source, natural gas plays an increasingly prominent role in the global energy structure. Natural gas liquefaction and separation is an important technical field of petrochemical production. The supersonic high-pressure low-temperature throttling condensation technology based on the principle of gas compressibility is a new technology for preparing liquefied natural gas. Compared with the traditional heat exchange and cooling technology, the supersonic high-pressure low-temperature throttling condensation technology has obvious advantages such as low cost, low energy consumption, and high efficiency. application. The main defect of the condensing device in the prior art is that when the inlet and outlet pressure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D5/00
CPCB01D5/0033
Inventor 张日葵曹先伟傅洁
Owner NANJING BEIDA GONGDAO INNOVATION
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