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Molecular sieve compressing device of pressure swing adsorption air separation unit adsorption tower

A technology of air separation equipment and pressure swing adsorption, which is applied in the direction of separation methods, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of increased equipment manufacturing costs, increased energy consumption, and bulky compaction devices, and achieves a compact appearance , low cost and simple structure

Active Publication Date: 2010-03-31
上海瑞气气体科技有限公司
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Problems solved by technology

[0004] However, the common problem existing in the above various structures is that the compression medium (filler, spring, gas, etc.) itself has compressibility, so that the cylinder piston will change with the pressure of the medium in the adsorption tower when the compression device is working. Pulsating and beating, unable to compact the molecular sieve constantly, especially when the equipment size is large
In order to reduce the severity of this beating, one method is to increase the effective area of ​​the compression cylinder to increase the working pressure, but on the one hand, this will cause the volume of the compression device to be too large, increase the cost of equipment manufacturing, and greatly increase energy consumption. On the other hand, it cannot fundamentally solve the problem of cylinder piston beating

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  • Molecular sieve compressing device of pressure swing adsorption air separation unit adsorption tower

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Embodiment Construction

[0010] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0011] Depend on figure 1 It can be seen that the present invention includes: a cylinder 7 fixed on the top of the adsorption tower 2; also includes: a hydraulic cylinder arranged on the cylinder 7; the piston shaft of the cylinder and the piston shaft of the hydraulic cylinder are the same shaft;

[0012] The cylinder 7 is fixed on the top of the adsorption tower 2 by the first bolt 4, the lower end of the ejector rod 3 in the cylinder is in movable contact with the molecular sieve pressure plate 1 in the adsorption tower, and the upper end is in movable contact with the cylinder piston 8; the upper chamber 9 of the cylinder is in contact with the adsorption tower. There is an opening and closing air passage 32 between the towers 2, and the lower cavity 6 of the cylinder communicates with the atmosphere through the hole 33;

[0013] Be provide...

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Abstract

The invention relates to a molecular sieve compressing device of a pressure swing adsorption air separation unit adsorption tower. The device comprises an air cylinder (7) fixed at the top of the adsorption tower (2) and a hydraulic cylinder arranged on the air cylinder (7), wherein the piston shaft of the air cylinder and the piston shaft of hydraulic cylinder are one shaft. The beneficial effectof the invention is that the dual function of the hydraulic cylinder and air cylinder can ensure that the air cylinder piston can not move upward so as to press molecular sieve continuously and reduce the creepage of molecular sieve to the minimum; in addition, the molecular sieve compressing device of the invention has the advantages of simple structure, compact appearance and low cost.

Description

technical field [0001] The invention relates to an adsorption tower of pressure swing adsorption air separation equipment, in particular to a molecular sieve compacting device of the adsorption tower. Background technique [0002] In the adsorption tower of the pressure swing adsorption air separation plant, the molecular sieve is washed by the high-pressure gas with periodic pressure fluctuations, and is always in an alternating peristaltic state. Molecular sieve creep will accelerate the pulverization of molecular sieve, thereby reducing the performance and service life of air separation equipment. Therefore, how to compress the molecular sieve to ensure that the intensity of peristalsis of the molecular sieve is reduced as much as possible during the normal operation of the air separation plant is a technical problem that must be solved in the structure of the adsorption tower. [0003] The compacting device used in the prior art is compacted with stuffing, pressed with ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/047
Inventor 张文平申春午陈亮李俊王海波文静逮志磊韩维峰
Owner 上海瑞气气体科技有限公司
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