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Internal balance hold-down filler

A technology of filling device and internal balance, which is applied in the field of molecular sieve compacting device in the gas separation cylinder of nitrogen and oxygen generators, which can solve the problems of equipment space limitation and large addition, and achieve the effect of reducing the service life

Inactive Publication Date: 2004-09-22
HANGZHOU SHENGDA MECHANICAL & ELECTRICAL HI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the internal pressure of the cylinder is in the high-pressure working stage, the existing compression devices need to add a large pressure to balance the pressure in the cylinder. For example, when the working pressure of the DN300 compression piston is 0.8Mpa, the pressure on the piston will be reduced. The pressure is about 5600kg. At this time, no matter which kind of pressing device is used, it needs a large external pressure to balance it, and the space of the equipment is limited to a certain extent. Once the balance cannot be achieved, the problem caused by the gap of the molecular sieve then appear

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1 as figure 1 As shown, in this example, the internal balance compression filling device is provided with a sleeve body 2 connected with the gas separation device 1, a piston 5 is arranged in the sleeve body 2, and a top cover 3 is connected on the sleeve body 2, and the top cover 3 is connected with the A compression spring 4 and an extended distance disengagement switch 9 that can contact / leave with the piston 5 are arranged between the pistons 5, and the extension distance disengagement type switch 9 is electrically connected with the alarm device of the peripheral device through the wire 7. A through hole 51 is provided on the piston 5, a cover 6 is provided on the top cover, and a nut 8 is provided on the cover.

Embodiment 2

[0018] Example 2 as figure 2 As shown, the internally balanced compression filling device in this example is different from the previous example in that the top cover 3 is provided with an axially outwardly protruding cavity shell 31, and the compression spring 4 and the extended-range disengagement switch 9 are located in the Inside the cavity shell 31. Other structures are the same as the above example.

Embodiment 3

[0019] Example 3 as image 3 As shown, the inner balanced compression filling device in this example is different from Example 2 in that an inner sleeve 10 is provided in the sleeve body 2, a piston 5 is arranged in the inner sleeve 10, and there is a gap between the outer wall of the inner sleeve 10 and the inner wall of the sleeve body 2 Between the chamber 11, the upper and lower parts of the chamber 11 are respectively provided with an upper cover and a lower cover located between the outer wall of the inner sleeve 10 and the inner wall of the sleeve body 2, and the upper and lower covers are respectively provided with a pressure balance hole I12 and a pressure balance Hole II13.

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Abstract

An internally balanced compact filling equipment for effectively and quickly eliminating the gap between molecular sieves in separating cylinder of nitrogen or oxygen preparing machine to elongate the service life of molecular sieve has a sleeve body connected to the gas separating cylinder, a piston in the sleeve body, a compressing spring between the top cover of sleeve body and piston, a contact / separation switch for the piston, an alarm electrically connected to said switch, and a pressure balancing hole on said separating cylinder.

Description

technical field [0001] The invention relates to structural components of nitrogen and oxygen generators, in particular to a molecular sieve compacting device in a gas separation cylinder of nitrogen and oxygen generators. Background technique [0002] The oxygen-nitrogen separation cylinder of the nitrogen generator and oxygen generator is filled with molecular sieves. When the air flows through the molecular sieve in the cylinder, oxygen and nitrogen are separated, and the separated nitrogen or oxygen can be collected. During the working process of nitrogen and oxygen generators, the gas separation presents a periodic operation state with time. In each operation cycle, the pressure in the gas separation cylinder has a rising charging stage, a constant pressure working stage and a falling regeneration stage, so The pressure in the cylinder changes from time to time, and the rate of change is also different. Changes in the pressure inside the cylinder wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04
Inventor 赵国大
Owner HANGZHOU SHENGDA MECHANICAL & ELECTRICAL HI TECH CO LTD
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