CN102029099B

CN102029099B - Molecular sieve compressing and gas distribution integrated device

Info

Publication number: CN102029099B
Application number: CN 201010528174
Authority: CN
Inventors: 裴红珍; 马江; 马源; 郑小平
Original assignee: KAIFENG AIR SEPARATION GROUP CO Ltd
Current assignee: KAIFENG AIR SEPARATION GROUP CO Ltd
Priority date: 2010-11-02
Filing date: 2010-11-02
Publication date: 2013-04-17
Anticipated expiration: 2030-11-02
Also published as: CN102029099A

Abstract

The invention relates to a molecular sieve compressing and gas distribution integrated device, which comprises an adsorber body, molecular sieves filled in the adsorber body, a molecular sieve filling opening pipe arranged on the top of an end socket on the adsorber body and a product escape pipe arranged on the pipe wall of the molecular sieve filling opening pipe, wherein a conical annular ring plate is welded on the inner wall of the end socket; a hole pipe is connected to the top of the conical annular ring plate; a sealing plate for sealing is welded between the upper part of the outer pipe wall of the hole pipe and the molecular sieve filling opening pipe; and a pressing plate is arranged in the hole pipe, and is connected with a flange welded on the top of the molecular sieve filling opening pipe by a spring. The molecular sieve compressing and gas distribution integrated device reduces the compacting area of the molecular sieves, so the size of a compaction device is reduced correspondingly; and the molecular sieves can be filled as far as possible to reduce the volume of an adsorber.

Description

Molecular sieve compressing and gas distribution integrated device

Technical field

The present invention relates to a kind of pressure swing adsorption air separator, specific design is a kind of for molecular sieve compressing and gas distribution integrated device with the molecular sieve compressing in the pressure swing adsorption air separator adsorption tower, also even distributing gas.

Background technology

Pressure-variable adsorption (the English PSA that is called for short) gas separation is to utilize molecular sieve as adsorbent, the under high pressure gas molecule absorption that adsorption rate is fast, the slow gas molecule of adsorption rate passes through, and the characteristic that under normal pressure or the negative pressure state adsorbate molecule is discharged is carried out a kind of device that gas separates.

Pressure varying adsorption gas separating equipment utilizes different molecular sieves can carry out air separation and produces oxygen or nitrogen, can be from many hydrogen containing industrial waste gas recover hydrogen, from the industrial tail gas such as lime-kiln gas, associated gas, reclaim carbon dioxide, can also in the byproduct of coke-stove gas, blast furnace gas and these steel plant of coal gas of converter, produce carbon monoxide.

The equipment of filling molecular sieve is called adsorber tower in the pressure varying adsorption gas separating equipment, core component for complete equipment, molecular sieve mostly is that internal structure is the particulate matter of micropore and pore, the bulk density of itself is less, when in absorber, being impacted by gases at high pressure easily " boiling ", therefore cause the efflorescence of molecular sieve, affect the separating effect of gas, need between gas vent and molecular sieve, install additional or the hold down gag of filling suppression molecular sieve.

Present molecular sieve compressing device has and installs in the absorber outside that cylinder-pressing, absorber are inner to be tight these the three kinds of devices of the gentle bag pressure of spring compression additional, the other useful inert ceramic balls method of carrying out compacting also, these have advantage separately, but all need additionally to increase device, in case hold down gag breaks down, a whole set of separation equipment needs the time of shut-down (breakdown) mainteance longer.

Summary of the invention

For the deficiencies in the prior art, the object of the present invention is to provide a kind of simple and practical in gas fractionation unit, space availability ratio is high, make link is few, equipment failure rate is little, production cost is low, safety coefficient is high molecular sieve compressing and gas distribution integrated device.

Technical scheme of the present invention is achieved in that a kind of molecular sieve compressing and gas distribution integrated device, comprise the absorber body, be filled in the intrinsic molecular sieve of absorber, be arranged on the molecular sieve filler pipe at the end socket top on the absorber body, be opened on the molecular sieve filler tube wall the product escape pipe, described end socket inwall is welded with the conical ring orifice plate, conical ring orifice plate top connects perforated pipe, be welded with the sealing plate that seals between the outer tube wall top of hole pipe and the molecular sieve filler pipe, be provided with pressing plate in the pipe of hole, pressing plate is connected with the blind flange that is welded on molecular sieve filler pipe top by spring.

Offer equally distributed venthole on the described conical ring orifice plate, described hole pipe is upper also to offer equally distributed venthole except the position of hole pipe corresponding product escape pipe.

Described conical ring orifice plate and pipe inside, hole are filled with molecular sieve, are provided with between molecular sieve and conical ring orifice plate and the hole pipe and prevent that molecular sieve and dust thereof from entering the silk screen of gas product with air-flow.

Described spring is at least one.

The present invention has following good effect: the present invention has reduced molecular sieve suppression area, has also just reduced the size of compaction apparatus accordingly; Can filling molecular sieve as much as possible, reduce the volume of adsorption tower; The taper orifice plate plays the effect of even distributing gas; The taper orifice plate can be collected gas product simultaneously effectively and uniformly, saves the gas product collector; The taper orifice plate and on hole pipe can increase area that gas goes out the molecular sieve aspect simultaneously, reduce gas flow rate; The taper orifice plate makes uniformly purge molecular sieve aspect of gas.

Description of drawings

Fig. 1 is structural representation of the present invention.

The specific embodiment

As shown in Figure 1, a kind of molecular sieve compressing and gas distribution integrated device, comprise absorber body 7, be filled in the molecular sieve 8 in the absorber body 7, be arranged on the molecular sieve filler pipe 3 at end socket 5 tops on the absorber body 7, be opened on molecular sieve filler pipe 3 tube walls product escape pipe 4, described end socket 5 inwalls are welded with conical ring orifice plate 6, conical ring orifice plate 6 tops connect perforated pipe 9, be welded with the sealing plate 11 that seals between the outer tube wall top of hole pipe 9 and the molecular sieve filler pipe 3, be provided with pressing plate 10 in the hole pipe 9, pressing plate 10 is connected with the blind flange 2 that is welded on molecular sieve filler pipe 3 tops by spring 1.

Offer equally distributed venthole 12 on the described conical ring orifice plate 6, except the position of 9 corresponding product escape pipes 4 is managed in the hole, also offer equally distributed venthole 12 on the described hole pipe 9.Described conical ring orifice plate 6 is managed 9 inside with the hole and is filled with molecular sieve 8, is provided with between molecular sieve 8 and conical ring orifice plate 6 and the hole pipe 9 and prevents that molecular sieve and dust thereof from entering the silk screen 13 of gas product with air-flow.Described spring 1 is at least one.

The present invention is by the contact area of conical ring orifice plate 6 control molecular sieves 8 with pressing plate 10, utilize thrust and the compressed spring 1 of blind flange 2 to compress molecular sieve, and in molecular sieve filling process, control its loading density by dress sieve shaking device, can prevent the molecular sieve that molecular sieve sinks to causing.

All be equipped with equally distributed venthole 12 on hole pipe 9 and the conical ring orifice plate 6, gas product can be passed through from the molecular sieve aspect uniformly, the gas product that is beneficial to simultaneously blowback evenly arrives the purge that the molecular sieve aspect is carried out saturated molecular sieve; Conical ring orifice plate 6 can increase the area of gas turnover molecular sieve aspect, reduces gas flow rate to the friction between the impact of molecular sieve aspect and the minimizing molecular sieve, the silk screen between protection orifice plate and the molecular sieve; Gas product escape pipe 4 is imperforate section over against the zone of hole pipe 9, and imperforate section makes blowback air force to enter the molecular sieve layer face in the space motion between hole pipe 9 and the filler pipe 3 and after being evenly distributed on conical ring orifice plate 6, has played the effect that changes gas flow.

The present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not breaking away from the scope situation that aim of the present invention and claim protect; can also make a lot of forms, these all belong within protection scope of the present invention.

Claims

1. a molecular sieve compressing and gas distribution integrated device, comprise absorber body (7), be filled in the molecular sieve (8) in the absorber body (7), be arranged on the molecular sieve filler pipe (3) at end socket (5) top on the absorber body (7), be opened in the product escape pipe (4) on molecular sieve filler pipe (3) tube wall, it is characterized in that: described end socket (5) inwall is welded with conical ring orifice plate (6), conical ring orifice plate (6) top connects perforated pipe (9), be welded with the sealing plate (11) that seals between the outer tube wall top of hole pipe (9) and the molecular sieve filler pipe (3), be provided with pressing plate (10) in the hole pipe (9), pressing plate (10) is connected with the blind flange (2) that is welded on molecular sieve filler pipe (3) top by spring (1).

2. molecular sieve compressing according to claim 1 and gas distribution integrated device, it is characterized in that: offer equally distributed venthole (12) on the described conical ring orifice plate (6), described hole pipe (9) is upper also to offer equally distributed venthole (12) except the position of hole pipe (9) corresponding product escape pipe (4).

3. molecular sieve compressing according to claim 1 and gas distribution integrated device, it is characterized in that: described conical ring orifice plate (6) is filled with molecular sieve (8) with pipe (9) inside, hole, is provided with between molecular sieve (8) and conical ring orifice plate (6) and the hole pipe (9) and prevents that molecular sieve and dust thereof from entering the silk screen (13) of gas product with air-flow.

4. molecular sieve compressing according to claim 1 and gas distribution integrated device, it is characterized in that: described spring (1) is at least one.