CN2892829Y

CN2892829Y - Normal temperature air separating oxygen-enriched-making generator

Info

Publication number: CN2892829Y
Application number: CNU2005201176873U
Authority: CN
Inventors: 张新军; 张建; 陈莉; 王冰; 尚艳丽
Original assignee: Shengli Engineering Construction Group Co Ltd
Current assignee: Sinopec Petroleum Engineering Corp
Priority date: 2005-09-07
Filing date: 2005-09-07
Publication date: 2007-04-25
Anticipated expiration: 2015-09-07

Abstract

A normal-temperature air separation rich oxygen generating device consists of a cylindrical shell, a round grid plate, a screen, a lower layer ceramic ball area, a zeolite molecule screen, a ceramic ball area, a round clapboard, an automatic gap-adjusting pressing device, an air inlet diffluence pipe, an air outlet pipe, an exhaust pipe and a support leg. The inside of the shell is provided from lower to upper with a grid plate, a first-grade screen, a lower layer ceramic ball area, a second-grade screen, a molecule screen area, a third-grade screen, an upper ceramic ball area, a fourth-grade screen, a clapboard and an automatic gap-adjusting device consisting of a pressing spring, a position limit pipe and a flange. The bottom of the shell is provided with an air inlet diffluence pipe. The peripheral of the upper part of the shell of the clapboard is provided with an air outlet pipe. The utility model has a simple structure, a reliable operation, high efficiency of the rich oxygen making; the rich oxygen is made from the air with normal-temperature to be applied for oil field heating furnace rich oxygen combustion-supporting technology and the utility model has obvious combustion-supporting and energy-saving effect and the environment protective effect.

Description

Normal temperature air separates the system oxygen-enriched generator

One, technical field

The utility model relates to a kind of onshore oil field combustion gas/fuel oil heating when adopting the oxygen-enriched combustion-supporting power-saving technology, and the normal temperature air of directly producing oxygen at normal temperatures from air separates the system oxygen-enriched generator.

Two, background technology

Process furnace is the key equipment of onshore oil field, it also is main energy consumption equipment, adopt the oxygen-enriched combustion-supporting technology can effectively improve the process furnace efficiency of combustion, accelerate fuel combustion speed, promote that fuel combustion is complete, reduce the fuel ignition temperature, reduce burning final vacuum amount, reduce oke exhaust blackness, increase heat utilization ratio, have significant combustion-supporting and energy-saving effect and environmental protection effect.But the present system low-purity oxygen plant complex process of using, it is low to produce oxygen-rich concentration, the equipment manufacturing cost height, efficient is low, and developing low-cost, high-level efficiency to produce the device of oxygen rich air raw material be the key factor of promoting process furnace oxygen-enriched combustion-supporting power-saving technology.

Three, summary of the invention

The purpose of this utility model provides a kind of normal temperature air and separates the system oxygen-enriched generator, can directly produce oxygen enrichment at normal temperatures continuously by the system oxygen-enriched generator from air, simplifies the system oxygen enriching process, reduces and produces the oxygen enrichment cost, improves air system oxygen enrichment efficient.

The technical solution of the utility model realizes in the following manner:

The utility model is by system oxygen-enriched generator cylindrical shell, circular screen, silk screen, lower floor porcelain ball district, zeolite molecular sieve, porcelain ball district, upper strata, circular dividing plate, the automatic gap adjusting hold-down gear, the air inlet isocon, escape pipe, vapor pipe, supporting leg is formed, it is characterized in that being provided with the air inlet isocon in system oxygen-enriched generator housing lower end, air inlet isocon one end puts in enclosure interior, its top is welded with a cover plate, seal the air inlet isocon top mouth of pipe, the all sides of inlet pipe are provided with two or more air inlet ports below cover plate, the air inlet isocon stretches out hull outside, is provided with vapor pipe stretching out housing air inlet isocon week side; Be provided with a screen on air inlet isocon top, be welded in inner walls, screen has a plurality of apertures, and screen plays a part to support and the uniform distribution air-flow; Pursue the automatic gap adjusting hold-down gear that preface is provided with screen, one-level silk screen, lower floor porcelain ball district, secondary silk screen, zeolite molecular sieve district, three grades of silk screens, porcelain ball district, upper strata, level Four silk screen, dividing plates and is made up of stage clip, position-limiting tube, flange from bottom to top in enclosure interior, position-limiting tube is welded in flange center, compression spring sleeve is on position-limiting tube, last top flange, press down dividing plate, the housing sidewall on dividing plate top is provided with a production well, and silk screen, porcelain ball, zeolite molecular sieve, dividing plate and housing are movingly.

The designed normal temperature air of the utility model separates the system oxygen-enriched generator and has the following advantages:

1, device interior is provided with air inlet isocon, screen, multi-layer silk screen, structure such as porcelain ball district up and down, in order to change the air motion direction, effectively to improve gas distribution, reduction, improve the operation stability and the system oxygen enrichment efficient of device to the surging force of zeolite molecular sieve, the influence that the attached wall phenomenon of elimination gas causes;

2, equipment is provided with molecular sieve automatic gap adjusting hold-down gear, prevent under blast air purges, molecular sieve is because of the boiling effect and the tunnel effect that produce fast offset and cause and cause zeolite molecular sieve surfacial spalling and efflorescence, reduce its effect, guarantee that by molecular sieve automatic gap adjusting hold-down gear molecular sieve closely fills, improve device work-ing life and operational efficiency;

3, equipment adopts the zeolite molecular sieve pressure swing adsorption to realize that airborne nitrogen under the normal temperature, oxygen separate, and produces oxygen enrichment, and can matching instrument, detect the controlling elements implement device continuously, automatically, efficient operation;

4, compact equipment, volume little, take up an area of less, cost is low.

Four, description of drawings

Fig. 1-structural representation of the present utility model.

Sequence number explanation among the figure:

1, system oxygen-enriched generator housing 2, air inlet isocon 3, cover plate 4, screen

5, one-level silk screen 6, lower floor porcelain ball district 7, secondary silk screen 8, zeolite molecular sieve district

9, three grades of silk screens 10, porcelain ball district, upper strata 11, level Four silk screen 12, dividing plate

13, automatic gap adjusting hold-down gear 14, position-limiting tube 15, downhand welding steel flange lid

16, escape pipe 17, vapor pipe 18, supporting leg

Five, embodiment

For further disclosing the technical solution of the utility model, below in conjunction with Figure of description, by

Embodiment elaborates;

The utility model relates to a kind of normal temperature air separation system oxygen-enriched generator that is used to produce oxygen enrichment, by housing 1, screen 4,

silk screen

5,7,9,11, lower floor porcelain ball district 6, zeolite molecular sieve 8, porcelain ball district, upper strata 9, dividing plate 12, automatic gap adjusting hold-down gear 13, position-limiting tube 14, air inlet isocon 2, escape pipe 16, vapor pipe 17, supporting leg 18 is formed, it is characterized in that being provided with air inlet isocon 2 in system oxygen-enriched generator housing lower end, air inlet isocon one end puts in enclosure interior, its top is welded with a cover plate 3, seal the air inlet isocon top mouth of pipe, air inlet isocon sidewall is provided with two slots below cover plate, as air inlet port, the air inlet isocon the other end stretches out hull outside, is provided with vapor pipe 17 in hull outside air inlet isocon one side; Be provided with a screen 4 on air inlet isocon 2 tops, be welded in inner walls, screen has a plurality of apertures, and screen plays a part to support and the uniform distribution air-flow; Be provided with level Four silk screen 11, porcelain ball district, upper strata 10, three grades of silk screens 9, molecular sieve 8, secondary silk screen 7, lower floor porcelain ball district 6, one-level silk screen 5, screen 4 from enclosure interior dividing plate 12 tops to the below by preface, the top is provided with the automatic gap adjusting hold-down gear of being made up of stage clip, position-limiting tube 14, flange 15 13, position-limiting tube is welded in flange center, compression spring sleeve is on position-limiting tube, last top flange, press down dividing plate, the housing sidewall on the automatic gap adjusting hold-down gear left side is provided with an escape pipe 16.Normal temperature air separates system its principle of work of oxygen-enriched generator and working process is: compressed air drying is after the air inlet isocon enters system oxygen-enriched generator housing 1, air is through screen 4, one-level silk screen 5, lower floor porcelain ball district 6, enter molecular sieve zone 8 behind the secondary silk screen 7, utilize the characterization of adsorption of zeolite molecular sieve to realize airborne oxygen at molecular sieve zone, nitrogen separation, because oxygen is different in the lip-deep rate of diffusion of zeolite molecular sieve with nitrogen, larger-diameter nitrogen molecule rate of diffusion is very fast, enter in the microporous molecular sieve morely, oxygen molecule rate of diffusion than minor diameter is slower, the amount that enters microporous molecular sieve is less, like this, nitrogen is adsorbed by zeolite molecular sieve, be in stationary phase, oxygen then is moving phase, obtains the enrichment composition of oxygen in gas phase; Isolated oxygen is discharged by escape pipe 16 through three grades of silk screens 9, porcelain ball district, upper strata 10, level Four silk screen 11 backs in the air; Zeolite molecular sieve is relatively more obvious in sometime to the difference of oxygen in the air and nitrogen adsorptive capacity, prolongation along with the time, this difference weakens gradually, a nitrogen content constantly increases in the discharge oxygen, in discharging oxygen oxygen content be not lower than prescribed value sometime in, by sequence controller control escape pipe 16, inlet pipe 2, vapor pipe 17 place's operated pneumatic valves, close escape pipe operated pneumatic valve, inlet pipe operated pneumatic valve, open the gas exhausting tube movable valve, utilize the characteristic of zeolite molecular sieve pressurization absorption, decompression desorb will make the interior air discharge of oxygen-enriched generator; After exhaust process finishes, close the gas exhausting tube movable valve, open inlet pipe operated pneumatic valve, escape pipe operated pneumatic valve, carry out the working cycle of zeolite molecular sieve transformation absorption system oxygen enrichment, realize the continuous production of oxygen enrichment.The effect of upper strata porcelain ball 5, lower floor's porcelain ball 10 is the uniform distribution gas of porcelain ball of flowing through in the system oxygen-enriched generator, and prevents to blow away molecular sieve in absorption system oxygen enrichment, desorb exhaust process; The silk screen the 9, the 7th of molecular sieve zone 8 tops and bottom prevents that molecular sieve from spilling, and the one-level silk screen 5 on the screen 4 prevents the porcelain ball blocking pipe that leaks down.Molecular sieve automatic gap adjusting hold-down gear 13 in the system oxygen-enriched generator is to prevent under blast air purges, molecular sieve is because of the boiling effect and the tunnel effect that produce fast offset and cause and cause molecular sieve surfacial spalling and efflorescence, reduce its effect, guarantee that by molecular sieve automatic gap adjusting hold-down gear molecular sieve closely fills, improve device work-ing life and operational efficiency.

Claims

1, a kind of normal temperature air separates the system oxygen-enriched generator, by cylindrical shell, circular screen, silk screen, lower floor porcelain ball district, zeolite molecular sieve, porcelain ball district, circular dividing plate, the automatic gap adjusting hold-down gear, the air inlet isocon, escape pipe, vapor pipe, supporting leg is formed, it is characterized in that being provided with circular screen by preface from bottom to top in enclosure interior, the one-level silk screen, lower floor porcelain ball district, the secondary silk screen, molecular sieve zone, three grades of silk screens, porcelain ball district, upper strata, the level Four silk screen, circular dividing plate, with by stage clip, position-limiting tube, the automatic gap adjusting hold-down gear that flange is formed, be provided with the air inlet isocon at housing bottom, be provided with escape pipe in all sides of dividing plate upper body.

2, normal temperature air according to claim 1 separates the system oxygen-enriched generator, it is characterized in that circle is welded on the inwall of housing middle and lower part, and the silk screen on its top, porcelain ball, zeolite molecular sieve and circular dividing plate and housing are movingly.

3, normal temperature air according to claim 1 separates the system oxygen-enriched generator, it is characterized in that the position-limiting tube of automatic gap adjusting hold-down gear is welded in flange center, and compression spring sleeve is on position-limiting tube, and last top flange presses down dividing plate.

4, normal temperature air according to claim 1 separates the system oxygen-enriched generator, it is characterized in that air inlet isocon one end puts in enclosure interior, its top is welded with a cover plate, seal the air inlet isocon top mouth of pipe, the all sides of inlet pipe are provided with two or more air inlet ports below cover plate, the air inlet isocon stretches out hull outside, is provided with vapor pipe stretching out housing air inlet isocon week side.