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Prepositioned high pressure and post-positioned dehydration device for compressed natural gas

A technology for compressing natural gas and dehydration device, which is used in gas fuel, petroleum industry, dispersed particle separation and other directions, can solve the problems of low utilization rate, high investment and transportation cost of fuel gas supply device for generator set, and reduce investment cost and transportation cost. The effect of cost, reasonable structure and convenient use

Active Publication Date: 2013-12-25
CNPC XIBU DRILLING ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a compressed natural gas pre-high-pressure post-dehydration device, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the first Problems of low utilization rate, high investment and transportation costs of the fuel gas supply device of the electric unit during start-up or maintenance and commissioning

Method used

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  • Prepositioned high pressure and post-positioned dehydration device for compressed natural gas

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Embodiment Construction

[0011] The present invention is not limited by the following examples, and specific implementation methods can be determined according to the technical solutions of the present invention and actual conditions.

[0012] In the present invention, for the convenience of description, the description of the relative positional relationship of each component is based on the description attached to the description. figure 1 For example, the positional relationship of top, bottom, left, right, etc. is determined according to the layout direction of the drawings in the specification.

[0013] Below in conjunction with embodiment and accompanying drawing, the present invention will be further described:

[0014] as attached figure 1 As shown, the compressed natural gas pre-high-pressure post-dehydration device includes a high-pressure dehydration tank 1 and a pressure-regulating buffer gas cylinder device 14; a molecular sieve 2 is fixedly installed inside the high-pressure d...

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Abstract

The invention relates to the technical field of natural gas purification devices and provides a prepositioned high pressure and post-positioned dehydration device for compressed natural gas. The prepositioned high pressure and post-positioned dehydration device comprises a high-pressure dehydration tank and a pressure-adjusting buffering gas bottle device, wherein a molecular sieve is fixedly mounted inside the high-pressure dehydration tank; a natural gas emptying pipe is fixedly mounted at the top of the high-pressure dehydration tank; a safety valve is fixedly mounted on the natural gas emptying pipe; a low-pressure natural gas inlet pipe is fixedly mounted on the high-pressure dehydration tank above the molecular sieve correspondingly. The prepositioned high pressure and post-positioned dehydration device for the compressed natural gas is reasonable and compact in structure and is convenient to use; under the precondition of not additionally arranging other devices, the high-pressure dehydration tank is utilized sufficiently to treat natural gas and finish the supply of the compressed natural gas before a complete set of purification devices for the compressed natural gas is started or is overhauled; a gas supply source is provided for a generator set and the complete set of devices is simplified; a gas supplying problem during the periods of starting and debugging the complete set of purification devices is solved effectively, the investment cost and the transportation cost are reduced and the transportation of the complete set of purification device for the natural gas is convenient.

Description

technical field [0001] The invention relates to the technical field of natural gas purification devices, and relates to a pre-high pressure post-dehydration device for compressed natural gas. Background technique [0002] Exploration well natural gas recovery generally adopts a complete set of natural gas purification device with high-pressure post-dehydration process. The operation of the device is mostly powered by a natural gas generator set. When the device is in normal operation, it can supply fuel gas to the generator set. However, when the device is started for the first time or during maintenance and commissioning, The fuel gas supply of the power unit generally adopts a separate compressed natural gas tanker or a mobile compressed natural gas cylinder, which increases investment and transportation costs, and the utilization rate of the gas supply device is very low. Some. Contents of the invention [0003] The present invention provides a pre-high pressure and po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L3/10B01D53/26
Inventor 吕新农赵永明王新河王跃文刘延龙米红学张小虎
Owner CNPC XIBU DRILLING ENG
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