Gas-liquid separation device for oxygenous coal bed

A liquefaction separation and coal bed gas technology, applied in refrigeration and liquefaction, gas fuel, lighting and heating equipment, etc., can solve the problems of reducing the processing capacity of separation and liquefaction devices, complex structure, low refrigeration efficiency, etc., to improve refrigeration efficiency, The effect of improving processing capacity and saving power energy

Active Publication Date: 2010-12-29
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI +1
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, this refrigeration process adopts conventional refrigeration methods such as mixed refrigeration or expansion refrigeration, which has a complex structure, and auxiliary machinery such as a turbine expansion set, the refrigeration efficiency is low, and the processing capacity of the separation and liquefaction device is reduced.

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  • Gas-liquid separation device for oxygenous coal bed
  • Gas-liquid separation device for oxygenous coal bed

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Embodiment Construction

[0019] The accompanying drawing is a schematic structural diagram of the present invention, as shown in the figure: the oxygen-containing coalbed methane liquefaction separation device of this embodiment includes a main flow system and a refrigeration system;

[0020] The main process system includes a primary heat exchanger 1, a secondary heat exchanger 2, a tertiary heat exchanger 4, and a rectification tower 5 connected in series, and the primary heat exchanger 1 is provided with an inlet for purified oxygen-containing coalbed methane , be positioned at rectifying tower 5 tower tops and be connected to the tower top condenser 8 that is connected with rectifying tower top nitrogen oxygen outlet, be positioned at tower bottom and reboiler 6 be arranged in described rectifying tower 5 towers, rectifying tower 5 tower bottoms are provided with condensing liquid outlet;

[0021] The refrigeration system includes a mixed refrigerant balance tank 10, a refrigerant compressor 11, a...

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Abstract

The invention discloses a gas-liquid separation device for an oxygenous coal bed, comprising a main process system and a refrigeration system, wherein the main process system comprises a first-stage heat exchanger, a second-stage heat exchanger, a third-stage heat exchanger and a rectification column which are orderly connected in series; and the refrigeration system comprises a mixed refrigerantbalance pot, a refrigerant compressor, a refrigerant cooler, a refrigerant primary gas-liquid separator and a refrigerant secondary gas-liquid separator. The refrigeration device of the invention adopts mixed refrigeration and combines throttling refrigeration, changes the traditional refrigeration process, sufficiently and rationally utilizes the refrigeration capacity reclaiming process in the technological process, and improves the refrigeration efficiency, thereby relatively improving the processing capability of the device; for the coal bed gas with low single well output, the productioncost can be saved; and only one set of compression equipment is utilized, so that the power energy is saved.

Description

technical field [0001] The invention relates to a separation device using the principle of liquefaction, in particular to a liquefaction separation device for oxygen-containing coal bed gas. Background technique [0002] Oxygen-containing coalbed methane is the primary by-product pumped out during coal mining to prevent gas explosions and outbursts and ensure safe production in coal mines; its main component is methane, and it can be seen from its composition content that coalbed methane is a relatively important energy source and chemical raw materials. However, due to its complex composition, especially the oxygen contained in coalbed methane, it is a very dangerous combustion and explosion-supporting agent, which restricts the comprehensive utilization of oxygen-containing coalbed methane; in practice, in order to save costs, coalbed methane is generally used in the coal mining process Exhausted into the atmosphere, causing extreme waste of resources and pollution to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L3/10F25B1/00F25B41/06F25B1/10
Inventor 张武胡千庭任小坤王长元史红兵肖露孙郁姚成林高元景寇伟伟
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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