Incoming water treatment device and method for air-separating heat exchanger
A main heat exchanger and processing device technology, applied in heat exchange equipment, lighting and heating equipment, deicing, etc., can solve the problems of low heating gas purging efficiency, large heating gas consumption, high cost, etc., to achieve cost Low cost, strong versatility, and wide application range
Inactive Publication Date: 2017-09-01
SHANGHAI ERSHIYE CONSTR CO LTD +1
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a water inlet treatment device and treatment method for the main heat exchanger of the air separation system, which cleans the main heat exchanger with inert gas, and solves the problem of the low efficiency of purging with heating gas and the need to consume a large amount of water. Heating gas, time-consuming and costly problems
Method used
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Embodiment 1
[0022] Such as figure 1 Shown, a kind of water inflow treatment device of air separation main heat exchanger comprises inert gas source 1, bubble 5, main heat exchanger 13, wherein said inert gas source 1 and bubble 5 are connected by temporary pipeline 3, described The temporary pipeline 3 is provided with a pressure reducing valve a2 and a stop valve a4, the pressure reducing valve a2 is close to the inert gas source 1, the stop valve a4 is close to the bubble 5, and the bubble 5 is provided with four pipelines, the four pipelines One of the pipelines is connected with a channel of the main heat exchanger 13, one pipeline is connected with the pressure gauge 9, one pipeline is provided with a shut-off valve b62, and the other pipeline is provided with a shut-off valve c61 and a safety valve 7, the pressure gauge 9 and the air bubble 5 is provided with a cut-off valve d8, a blind plate 12 is provided between the main heat exchanger 13 and the air bubble 5, and the blind plate...
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The invention relates to an incoming water treatment device and method for air-separating heat exchanger. The device comprises an inert gas source, a bubble and a main heat exchanger, wherein the inert gas source is connected with the bubble through a temporary pipeline; a pressure reduction valve a which is close to the inert gas source, and a check valve a which is close to the bubble are arranged on the temporary pipeline; four pipelines are arranged on the bubble; the first pipeline of the four pipelines is connected with one channel of the main heat exchanger; the second pipeline is connected with a pressure gauge; the third pipeline is provided with a check valve b; the fourth pipeline is provided with a check valve c and a safety valve; a check valve d is arranged on a pipeline between the pressure gauge and the bubble; a blind plate is arranged between the main heat exchanger and the bubble and is close to the main heat exchanger; a check valve e and a check valve f are arranged at the upper part of the blind plate and close to the bubble. According to the device, gas is supplied by means of liquid evaporating or through a high-pressure gas cylinder, so that the gas source is wide, and the cost is low.
Description
technical field [0001] The invention belongs to the technical field of air separation devices, and in particular relates to a water inflow treatment device and a treatment method of an air separation main heat exchanger. Background technique [0002] The main heat exchanger is one of the core equipment of the air separation unit, and its main function is to cool the air to the liquefaction temperature (-173°C) and send it to the fractionation tower for separation. Due to the ultra-low temperature working environment of the main heat exchanger, the residual water vapor in each channel of the main heat exchanger must be strictly controlled, otherwise the main heat exchanger will frost and affect the heat exchange efficiency, and even cause the main heat exchanger to freeze and crack. At present, there are more and more transformation and relocation projects of air separation units. If the sealing measures are not in place during the dismantling, transformation, transportation ...
Claims
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IPC IPC(8): F28F17/00F28F27/00
CPCF28F17/00F28F27/00
Inventor 李俊峰张小红郑永恒林红芳
Owner SHANGHAI ERSHIYE CONSTR CO LTD