CN2262552Y

CN2262552Y - Miniature oxygen supply apparatus

Info

Publication number: CN2262552Y
Application number: CN 96220620
Authority: CN
Inventors: 陶杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-08-08
Filing date: 1996-08-08
Publication date: 1997-09-17
Anticipated expiration: 2006-08-08

Abstract

The utility model provides a miniature oxygen supply apparatus with the structure of a molecular sieve, which is mainly composed of a compression vacuum set, a radiator, a three-position five-way valve, a microcomputer programmed card, a surge tank, a molecular sieve bed, an oxygen storing tank, etc. The utility model is characterized in that a pressure equalizing flushing valve, and an outlet part of the surge tank is provided with a drain valve. The utility model has the advantages that the structure is compact, the volume is small, the power consumption is little, and the concentration of the generated oxygen and the supplied oxygen is high. The utility model is ideal miniature oxygen supply equipment widely used for families, hospitals, sanatoriums, ambulances, and oxygen bars.

Description

Miniature aerator

The utility model belongs to gas separation technique field.

At present, the oxygenerator of China's use mostly is the large oxygen-making machine tool that adopts deep cooling legal system oxygen.This oxygenerator not only exists bulky, heavy shortcoming, and noise is bigger, and cost is higher, thereby can't promote the use of in large area.For this reason, Chinese patent CN87206076U once disclosed a kind of " the small-sized oxygenerator of molecular sieve ", the small-sized oxygenerator of this molecular sieve is mainly by circuit controling switch, microcomputer automatic control system, the gas transformation of supplying raw materials desorption system oxygen, system scavenges, product oxygen sterile filtration system forms, though it has solved the miniaturization issues of large oxygen-making machine, it is big still to exist volume, cost higher and lower, noise of system oxygen concn and the too high shortcoming of current consumption.

It is little that the utility model is intended to overcome above-mentioned shortcoming, provides that a kind of volume, current consumption are low, system oxygen concn height and noise are little is applicable to the miniature aerator that vast family, hospital, sanatorium and oxygen crust use.

The purpose of this utility model is achieved like this: it is the oxygenerator based on existing small-sized molecular sieve structure, between the superior oxygen enrichment molecular sieve bed of two set employing oxygen nitrogen separation performancies, add one and all pressed flush valve, so that adsorb in the molecular sieve transformation, behind the vacuum desorption denitrogen, open flush valve, add low discharge flushing denitrogen, increase the denitrogen effect.System's import in the oxygen supply pneumatic system, compressor inlet, molecular sieve bed outlet all are equipped with gas filter, then are equipped with biofilter at oxygen outlet, to obtain aseptic, clean oxygen; In addition, the exit at the aerator buffer tank has added water discharge valve, regularly to get rid of the moisture in the pressurizing vessel, progressive oxygen supply concentration and the speed of improving.

Little through the utility model compact construction, volume after the above-mentioned design, it has not only reduced power consumption, and having improved system oxygen effectively, the concentration of oxygen supply and speed are a kind of miniature oxygen supply equipments of ideal that oxygen enrichment can extensively be provided with family, hospital, sanatorium, ambulance and oxygen crust.

Concrete structure of the present utility model is as shown in drawings:

Fig. 1 is a surface structure synoptic diagram of the present utility model

Fig. 2 is an internal structure synoptic diagram of the present utility model

Fig. 3 is a schema of the present utility model

Below with reference to the accompanying drawings embodiment of the present utility model is elaborated:

Miniature aerator contains a casing 1, casing two portions before and after casing 1 is divided into.On casing, be provided with flow control valve 2 and electrical equipment display panel 3.In casing, be provided with baffle assembly 4.Below baffle assembly 4, be provided with compression vacuum unit 5, scatterer 6; Above baffle assembly 4, be provided with buffer tank 7, three position five-way valve 8, microcomputer program switchboard 11, A molecular sieve bed 12, B molecular sieve bed 13, oxygen container 17; Oxygen container 17 is integrated with buffer tank 7, divides left and right sides two portions.Micro computer adopts the D8748-8 series monolithic.This micro-chip has the RAM reading writing memory of 1KX8EPROM memory under program and 64 * 8 bytes, can it accurately be controlled for the input of user's self-compiling program.A, B molecular sieve bed then adopt the more excellent oxygen enrichment molecular sieve 5AMG of oxygen nitrogen separation performance as sorbent material, make it have higher system oxygen concn.Between buffer tank 7 and A molecular sieve bed 12, B molecular sieve bed 13, be provided with one and all press flush valve 15 and check valve 16, be provided with water discharge valve 9 and magnetic valve 10 in the exit of buffer tank 7, discharge the water coolant that is produced in the buffer tank in order to timely control, improve the absorption and the parsing that enter the air in the molecular sieve bed.In order to obtain cleaning, aseptic oxygen, import, the import of compressor and the outlet of molecule bed in the moving system of air feed are equipped with gas filter 14, in the exit of oxygen container 17, are equipped with biofilter 19, between oxygen container 17 and biofilter 19, then be equipped with pressure reducer 18.Like this, come out through pressure reducer 18, biofilter 19 the aseptic oxygen that is cleaning that can be for people to use that flow control valve 20 comes out from oxygen supply pipe 21 from oxygen container 17.

Principle of work of the present utility model and working process are achieved like this:

Behind the filtration unit two-stage filtration of air in baffle assembly 4, by 5 superchargings of compression vacuum unit, air pressure is up to 0.22MPa at this moment, and temperature rises to about 14 ℃, and through scatterer 6 heat radiations, cooling enters buffer tank 7, and enters three position five-way valve 8.This valve is by two solenoid control on the microcomputer program switchboard 11, and the Controlling System time variable control that magnetic valve then is made up of micro-chip makes pressurized air alternately enter A molecular sieve bed 12, B molecular sieve bed 13.When three position five-way valve was moved to the left, air admission A molecular sieve bed 12 adsorbed, and oxygen is separated, and nitrogen is trapped in the molecular sieve.At this moment, B molecular sieve bed 13 just in time communicates with the vacuum pump of compression vacuum unit and is in the desorption stage, the former nitrogen that is trapped in molecular sieve bed is drawn out of enters atmosphere.

In 12 absorption of A molecular sieve bed, the ending phase of B molecular sieve bed 13 desorptions is by the 3rd solenoid control on the program board, open and all press flush valve 15, force the remaining oxygen of A molecular sieve bed, flushing B molecular sieve bed 13 is with the residue nitrogen in the further discharge molecular sieve bed.All pressing flush valve 15 to open moment, two molecular sieve beds are all pressed.

After two molecular sieve beds were all pressed, the magnetic valve 10 on the program board was opened water discharge valve 9, made and regularly discharged cooling moisture in the buffer tank 7.

When three position five-way valve 8 moved right, B molecular sieve bed 13 adsorbed, and A molecular sieve bed 12 then is in the desorption stage.More than whole process all realize sequencing control, make A, B molecular sieve bed hocket absorption and desorption, form absorption, step-down, desorption, boost four cycles stage.Separated oxygen then constantly enters in the oxygen container 17 from check valve 16 and concentrates, and then, after pressure reducer 18, biofilter 19 filter, by flow control valve 20 controls, comes out and can use for the breather on demand from oxygen supply pipe 21 again.

Claims

1, a kind of miniature aerator, include a casing (1), on casing (1), be provided with flow control valve (2), electrical equipment display panel (3), in casing, be provided with baffle assembly (4), compression vacuum unit (5), scatterer (6), buffer tank (7), three position five-way valve (8), microcomputer program switchboard (11), A molecular sieve bed (12), B molecular sieve bed (13), oxygen container parts such as (17), it is characterized in that between the buffer tank (7) and A molecular sieve bed (12) and B molecular sieve bed (13) of this miniature aerator, be provided with one and all press flush valve (15) and check valve (16), exit in buffer tank (7) is provided with water discharge valve (9) and magnetic valve (10).

2, miniature aerator according to claim 1, the sorbent material that it is characterized in that described A, B molecular sieve bed are 5AMG type oxygen enrichment molecular sieve.

3, miniature aerator according to claim 1 is characterized in that the exit of described oxygen container (17) being provided with biofilter (19).