CN111807328A - Molecular sieve oxygen making mechanism of portable oxygenerator - Google Patents
Molecular sieve oxygen making mechanism of portable oxygenerator Download PDFInfo
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- CN111807328A CN111807328A CN202010716192.1A CN202010716192A CN111807328A CN 111807328 A CN111807328 A CN 111807328A CN 202010716192 A CN202010716192 A CN 202010716192A CN 111807328 A CN111807328 A CN 111807328A
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- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
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Abstract
The invention discloses a molecular sieve oxygen generation mechanism of a portable oxygen generator, which comprises an oxygen storage tank (1), a right molecular sieve tank (24), a left molecular sieve tank (25), an electromagnetic valve seat (5) and a lower gas path cover (34), wherein the interior of the oxygen storage tank (1) is divided into a left cavity, a middle cavity and a right cavity, the left molecular sieve tank (25) is arranged in the left cavity, and the right molecular sieve tank (24) is arranged in the right cavity; a plurality of gas circuits are arranged on the electromagnetic valve seat (5) and the lower gas circuit cover (34) to pressurize, adsorb and decompress the right molecular sieve tank (24) and the left molecular sieve tank (25) and blow off the adsorption and the decompression, so that the product quality of the molecular sieve oxygen generation mechanism of the portable oxygen generator is improved.
Description
Technical Field
The invention belongs to the field of mechanical structures, and particularly relates to a molecular sieve oxygen generation mechanism of a portable oxygen generator.
Background
The portable oxygen generator is small and portable, and guarantees oxygen uptake requirements of people working in outdoor environment in plateau and traveling. The molecular sieve oxygen generation mechanism with excellent structural design and high reliability is the basis for ensuring that the portable oxygen generator is portable in carrying, efficient in working, safe and reliable. At present, most of domestic oxygenerators adopt a molecular sieve pulse oxygen generation technology, the working principle of the molecular sieve pulse oxygen generation technology is to separate oxygen and nitrogen in air by a molecular sieve pressure swing adsorption method to obtain high-concentration oxygen, but the molecular sieve oxygen generation mechanism of the existing oxygenerator has the defects of complex internal structure, messy air pipes, poor reliability, low assembly efficiency, large structural volume and heavy weight.
Disclosure of Invention
The invention aims to provide a molecular sieve oxygen generation mechanism of a portable oxygen generator, which adopts the following steps: the product quality of the portable oxygen generator is greatly improved by a gas circuit integration technology, a multi-cavity oxygen storage tank technology, a molecular sieve tank and oxygen storage tank integration technology, a molecular sieve compressed air input diversion technology, a molecular sieve normal pressure desorption gas blowing gas circuit technology, a multi-cavity oxygen storage tank oxygen pressure balance technology and the like.
The invention aims to be realized by the following technical scheme:
a molecular sieve oxygen generating mechanism of a portable oxygen generator comprises an oxygen gas storage tank 1, a right molecular sieve tank 24, a left molecular sieve tank 25, an electromagnetic valve seat 5 and a lower gas path cover 34;
the interior of the oxygen storage tank 1 is divided into a left cavity, a middle cavity and a right cavity, a left molecular sieve tank 25 is placed in the left cavity, and a right molecular sieve tank 24 is placed in the right cavity;
an oxygen storage tank upper cover 4 is arranged at the top end of an oxygen storage tank 1, an electromagnetic valve seat 5 is arranged on the oxygen storage tank upper cover 4, a left first electromagnetic valve 6 for controlling compressed air to be input into a left molecular sieve tank 25, a right third electromagnetic valve 12 for controlling compressed air to be input into a right molecular sieve tank 24, a left second electromagnetic valve 7 for controlling left molecular sieve tank 25 to exhaust, a right second electromagnetic valve 11 for controlling right molecular sieve tank 24 to exhaust, a left third electromagnetic valve 8 for controlling left molecular sieve tank 25 to output oxygen, a right first electromagnetic valve 10 for controlling right molecular sieve tank 24 to output oxygen are arranged on the electromagnetic valve seat 5, a first drainage groove is arranged between the input port of the left first electromagnetic valve 6 and the input port of the right third electromagnetic valve 12, the first drainage groove is communicated with a compressed air input interface 14, a second drainage groove is arranged between the input port of the left second electromagnetic valve 7 and the input port of the right second electromagnetic valve 11, the second drainage groove is communicated with an exhaust interface 13, a third drainage groove is formed between the input port of the left third electromagnetic valve 8 and the input port of the right first electromagnetic valve 10, and the third drainage groove is communicated with the right cavity of the oxygen storage tank 1;
the upper cover 4 of the oxygen gas storage tank is provided with a left compressed air input hole connected with the output port of the left first electromagnetic valve 6 and a left exhaust hole connected with the output port of the left second electromagnetic valve 7 above the left molecular sieve tank 25, and the upper cover 4 of the oxygen gas storage tank is provided with a right compressed air input hole connected with the output port of the right third electromagnetic valve 12 and a right exhaust hole connected with the output port of the right second electromagnetic valve 11 above the right molecular sieve tank 24; the upper cover 4 of the oxygen gas storage tank is provided with a left molecular sieve oxygen output upper interface 18 connected with the output port of the left third electromagnetic valve 8 above the left cavity, and the upper cover 4 of the oxygen gas storage tank is provided with a right molecular sieve oxygen output upper interface 17 connected with the output port of the right first electromagnetic valve 10 above the right cavity;
the bottom end of the oxygen gas storage tank 1 is provided with an oxygen gas storage tank lower cover 31, a left molecular sieve oxygen output lower connector 37 is arranged below a left cavity of the oxygen gas storage tank lower cover 31, the other end of the left molecular sieve oxygen output lower connector 37 is communicated with the lower end of the left molecular sieve tank 25, a right molecular sieve oxygen output lower connector 28 is arranged below a right cavity, and the other end of the right molecular sieve oxygen output lower connector 28 is communicated with the lower end of the right molecular sieve tank 24; the left molecular sieve oxygen output upper and lower connecting pipe 29 is connected with the left molecular sieve oxygen output upper interface 18 and the left molecular sieve oxygen output lower interface 37 in the left cavity, the right molecular sieve oxygen output upper and lower connecting pipe 27 is connected with the right molecular sieve oxygen output upper interface 17 and the right molecular sieve oxygen output lower interface 28 in the right cavity, and the lower cover 31 of the oxygen gas storage tank is provided with a flow restrictor 30 at the output port position of the lower end of the left molecular sieve tank 25;
the lower gas circuit cover 34 is arranged below the lower cover 31 of the oxygen gas storage tank, a fourth drainage groove and a fifth drainage groove are arranged on the lower gas circuit cover 34, and two ends of the fourth drainage groove are respectively communicated with the output ports at the lower ends of the left molecular sieve tank 25 and the right molecular sieve tank 24; the two ends of the fifth drainage groove are respectively aligned with the left one-way valve 36 communicated with the lower end of the left molecular sieve tank 25 and the right one-way valve 32 communicated with the lower end of the right molecular sieve tank 24, and the fifth drainage groove is communicated with the lower end of the middle cavity of the oxygen storage tank 361.
Preferably, the electromagnetic valve seat sealing gasket 3 is arranged at the installation position of the electromagnetic valve seat 5 and the oxygen storage tank upper cover 4, and the oxygen storage tank upper cover sealing gasket 20 is arranged at the installation position of the oxygen storage tank 1 and the oxygen storage tank upper cover 4.
Preferably, a lower air path sealing gasket 33 is arranged at the installation position of the lower air path cover 34 and the lower cover 31 of the oxygen storage tank, and an oxygen storage tank lower cover sealing gasket 26 is arranged at the installation position of the lower cover 31 of the oxygen storage tank and the oxygen storage tank 1.
Preferably, the lower cover 31 of the oxygen storage tank is also provided with a sixth drainage groove from the middle cavity to the left cavity, and the sixth drainage groove is provided with a left middle cavity flow restrictor 35 of the oxygen storage tank.
Preferably, a seventh drainage groove is arranged on the electromagnetic valve seat 5, one end of the seventh drainage groove is aligned to a hole in the upper cover 4 of the oxygen storage tank, which is communicated with the left cavity, and the other end of the seventh drainage groove is communicated with an input port of the electromagnetic valve 9; an eighth drainage groove is also formed in the electromagnetic valve seat 5, one end of the eighth drainage groove is aligned to a hole in the upper cover 4 of the oxygen storage tank, which is communicated with the right cavity, and the other end of the eighth drainage groove is communicated with an output port of the electromagnetic valve 9; a left first electromagnetic valve of a pressure sensor 1 is arranged at the middle cavity position of an upper cover 4 of the oxygen gas storage tank, the left first electromagnetic valve of the pressure sensor 1 monitors the pressure in the middle cavity, a left cavity control electromagnetic valve 9 and a right cavity control electromagnetic valve 9 are opened after a certain threshold value is exceeded, oxygen in the left cavity flows into the right cavity, and a compression air pump is closed after the air pressure is balanced.
Preferably, the device also comprises a plurality of gas path debugging port plugs 15, and the gas path debugging port plugs are used for debugging the pressure in the three cavities when the molecular sieve oxygen generating mechanism of the portable oxygen generator leaves the factory.
Preferably, a left compressed air input guide plate 22 is arranged below the compressed air input port of the left molecular sieve tank, and a right compressed air input guide plate 19 is arranged below the compressed air input port of the right molecular sieve tank.
Preferably, the molecular sieve oxygen generation mechanism of the portable oxygen generator adopts an aluminum magnesium alloy material, and the surface of the molecular sieve oxygen generation mechanism is subjected to anodization surface treatment.
This molecular sieve oxygenerator of portable oxygenerator constructs possesses following characteristics:
1. except that the left and right molecular sieve oxygen output upper and lower connecting pipes are connected by the air pipe, all other air passages are integrated on the electromagnetic valve seat, the upper and lower covers of the oxygen storage tank and the lower air passage cover, so that the reliability of the air passages of the molecular sieve oxygen production mechanism is improved;
2. the oxygen storage tank consists of a left cavity, a middle cavity and a right cavity, so that continuous and stable gas supply is ensured; the left molecular sieve tank and the right molecular sieve tank are respectively integrated in the left cavity and the right cavity of the oxygen storage tank, so that the structure is smaller;
3. a compressed air input guide plate is arranged at a compressed air inlet of the molecular sieve tank, so that compressed air can uniformly enter the molecular sieve tank, and the adsorption efficiency of the molecular sieve is improved; arranging left and right molecular sieve flow restrictors, and blowing and adsorbing another molecular sieve desorbed under normal pressure by using the left and right molecular sieve flow restrictors when one molecular sieve is pressurized and adsorbed;
4. the pressure sensor interface and the left and right cavity control solenoid valves are arranged, and the oxygen storage capacity of the oxygen storage tank can be automatically maintained through the detection of the pressure sensor, the action of the solenoid valve and the starting and stopping of the compression air pump;
5. the left and right one-way valves are used, so that the left and right molecular sieves can respectively carry out the processes of pressurization adsorption and decompression desorption in turn without mutual interference;
6. the main structural member of the molecular sieve oxygen generation mechanism is made of aluminum-magnesium alloy, and the surface of the molecular sieve oxygen generation mechanism is anodized, so that the weight of the whole structure is reduced, and the molecular sieve oxygen generation mechanism has good corrosion resistance.
The molecular sieve oxygen generation mechanism has the characteristics of simple and compact structure, light weight, high reliability, low requirements on processing and assembling precision and the like by the design, so that the product quality and the economic benefit of the molecular sieve oxygen generation mechanism are improved.
Drawings
FIG. 1 is a schematic structural diagram of a molecular sieve oxygen generation mechanism shown in an embodiment;
FIG. 2 is a schematic gas path diagram of an oxygen generation mechanism with molecular sieve according to an embodiment;
description of reference numerals: 1- -an oxygen storage tank, 2- -an oxygen output interface, 3- -an electromagnetic valve seat sealing gasket, 4- -an oxygen storage tank upper cover, 5- -an electromagnetic valve seat, 6- -a left first electromagnetic valve, 7- -a left second electromagnetic valve, 8- -a left third electromagnetic valve, 9- -a left and right cavity control electromagnetic valve, 10- -a right first electromagnetic valve, 11- -a right second electromagnetic valve, 12- -a right third electromagnetic valve, 13- -an exhaust interface, 14- -a compressed air input interface, 15- -an air path debugging port plug, 16- -a pressure sensor, 17- -a right molecular sieve oxygen output upper interface, 18- -a left molecular sieve oxygen output upper interface, 19- -a right compressed air input guide plate, 2- -an oxygen output interface, 3- -an electromagnetic valve seat sealing gasket, 4- -an oxygen storage tank, 20- -an upper cover sealing gasket of an oxygen storage tank, 21- -a right compressed air input interface, 22- -a left compressed air input guide plate, 24- -a right molecular sieve tank, 25- -a left molecular sieve tank, 26- -a lower cover sealing gasket of the oxygen storage tank, 27- -a right molecular sieve oxygen output upper and lower connecting pipe, 28- -a right molecular sieve oxygen output lower interface, 29- -a left molecular sieve oxygen output upper and lower connecting pipe, 30- -left and right molecular sieve flow restrictors, 31- -lower cover of oxygen gas storage tank, 32- -right one-way valve, 33- -lower gas path sealing gasket, 34- -lower gas path cover, 35- -left middle cavity flow restrictor of oxygen gas storage tank, 36- -left one-way valve, 37- -left molecular sieve oxygen output lower interface.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, the main structural component of the molecular sieve oxygen generation mechanism of the portable oxygen generator in this embodiment is made of an aluminum magnesium alloy, and the surface of the molecular sieve oxygen generation mechanism is anodized. Comprises an oxygen gas storage tank 1, a right molecular sieve tank 24, a left molecular sieve tank 25, an electromagnetic valve seat 5 and a lower gas path cover 34.
Oxygen gas holder 1's inside is divided into left chamber, lumen and right chamber, and left molecular sieve jar 25 is placed in left chamber, and right molecular sieve jar 24 is placed in right chamber.
An oxygen storage tank upper cover 4 is arranged at the top end of an oxygen storage tank 1, an electromagnetic valve seat 5 is arranged on the oxygen storage tank upper cover 4, a left first electromagnetic valve 6 for controlling compressed air to be input into a left molecular sieve tank 25, a right third electromagnetic valve 12 for controlling compressed air to be input into a right molecular sieve tank 24, a left second electromagnetic valve 7 for controlling left molecular sieve tank 25 to exhaust, a right second electromagnetic valve 11 for controlling right molecular sieve tank 24 to exhaust, a left third electromagnetic valve 8 for controlling left molecular sieve tank 25 to output oxygen, a right first electromagnetic valve 10 for controlling right molecular sieve tank 24 to output oxygen are arranged on the electromagnetic valve seat 5, a first drainage groove is arranged between the input port of the left first electromagnetic valve 6 and the input port of the right third electromagnetic valve 12, the first drainage groove is communicated with a compressed air input interface 14, a second drainage groove is arranged between the input port of the left second electromagnetic valve 7 and the input port of the right second electromagnetic valve 11, the second drainage groove is communicated with an exhaust interface 13, and a third drainage groove is formed between the input port of the left third electromagnetic valve 8 and the input port of the right first electromagnetic valve 10, and is communicated with the right cavity of the oxygen storage tank 1.
The upper cover 4 of the oxygen gas storage tank is provided with a left compressed air input hole connected with the output port of the left first electromagnetic valve 6 and a left exhaust hole connected with the output port of the left second electromagnetic valve 7 above the left molecular sieve tank 25, and the upper cover 4 of the oxygen gas storage tank is provided with a right compressed air input hole connected with the output port of the right third electromagnetic valve 12 and a right exhaust hole connected with the output port of the right second electromagnetic valve 11 above the right molecular sieve tank 24; the upper cover 4 of the oxygen gas storage tank is provided with a left molecular sieve oxygen output upper interface 18 connected with the output port of the left third electromagnetic valve 8 above the left cavity, and the upper cover 4 of the oxygen gas storage tank is provided with a right molecular sieve oxygen output upper interface 17 connected with the output port of the right first electromagnetic valve 10 above the right cavity.
The flow of the compressed air flowing in through the compressed air input interface 14 can be controlled to flow into the left molecular sieve tank 25 or the right molecular sieve tank 24 by opening and closing the left first electromagnetic valve 6 and the right third electromagnetic valve 12. The nitrogen adsorbed by the left molecular sieve tank 25 or the right molecular sieve tank 24 can be controlled to be discharged through the exhaust interface 13 by opening and closing the left second electromagnetic valve 7 and the right second electromagnetic valve 11.
The bottom end of the oxygen gas storage tank 1 is provided with an oxygen gas storage tank lower cover 31, a left molecular sieve oxygen output lower connector 37 is arranged below a left cavity of the oxygen gas storage tank lower cover 31, the other end of the left molecular sieve oxygen output lower connector 37 is communicated with the lower end of the left molecular sieve tank 25, a right molecular sieve oxygen output lower connector 28 is arranged below a right cavity, and the other end of the right molecular sieve oxygen output lower connector 28 is communicated with the lower end of the right molecular sieve tank 24; the left molecular sieve oxygen output upper and lower connecting pipe 29 is connected with the left molecular sieve oxygen output upper interface 18 and the left molecular sieve oxygen output lower interface 37 in the left cavity, the right molecular sieve oxygen output upper and lower connecting pipe 27 is connected with the right molecular sieve oxygen output upper interface 17 and the right molecular sieve oxygen output lower interface 28 in the right cavity, and the oxygen output from the left molecular sieve tank 25 or the right molecular sieve tank 24 can be controlled to blow and attach to the right molecular sieve tank 24 or the left molecular sieve tank 25 by opening and closing the left third electromagnetic valve 8 and the right first electromagnetic valve 10.
The lower gas circuit cover 34 is installed below the lower cover 31 of the oxygen gas storage tank, a fourth drainage groove and a fifth drainage groove are arranged on the lower gas circuit cover 34, two ends of the fourth drainage groove are respectively communicated with the output ports at the lower ends of the left molecular sieve tank 25 and the right molecular sieve tank 24, wherein the flow restrictor 30 is installed at the output port position at the lower end of the left molecular sieve tank 25 of the lower cover 31 of the oxygen gas storage tank, so that oxygen generated by the left molecular sieve tank 25 flows into the right molecular sieve tank 24 at a certain flow rate (or reversely), and the functions of blowing and attaching are achieved. The two ends of the fifth drainage groove are respectively aligned with the left one-way valve 36 communicated with the lower end of the left molecular sieve tank 25 and the right one-way valve 32 communicated with the lower end of the right molecular sieve tank 24, and the fifth drainage groove is communicated with the middle cavity of the oxygen storage tank 1.
Preferably, the electromagnetic valve seat sealing gasket 3 is arranged at the installation position of the electromagnetic valve seat 5 and the oxygen storage tank upper cover 4, and the oxygen storage tank upper cover sealing gasket 20 is arranged at the installation position of the oxygen storage tank 1 and the oxygen storage tank upper cover 4 to prevent air leakage. The lower gas path sealing gasket 33 is arranged at the installation position of the lower gas path cover 34 and the lower oxygen storage tank cover 31, and the lower oxygen storage tank cover sealing gasket 26 is arranged at the installation position of the lower oxygen storage tank cover 31 and the oxygen storage tank 1 to prevent gas leakage.
The specific operation is as follows (see fig. 2):
and opening the compressed air to input the left first electromagnetic valve 7, the left third electromagnetic valve 8, the right second electromagnetic valve 11 and the compressed air pump, wherein the left second electromagnetic valve 7, the right first electromagnetic valve 10 and the right third electromagnetic valve 12 are all in a closed state. Compressed air generated by the compressed air pump enters the left molecular sieve tank 25 through the compressed air input interface 14, due to the prevention of the left and right molecular sieve flow restrictors 30, the compressed air generates pressure in the left molecular sieve tank 25, the left molecular sieve tank 25 adsorbs nitrogen in the air under the action of the pressure to generate high-concentration oxygen, the oxygen output by the left molecular sieve tank 25 is divided into three paths, one path flows into the middle cavity for storage through the left one-way valve 36, the other path flows into the right cavity for storage through the left third electromagnetic valve 8, the third path flows into the right molecular sieve tank 24 through the flow restrictors 30 at a certain flow rate to blow and discharge the nitrogen adsorbed by the right molecular sieve tank 24 last time from the right second electromagnetic valve 11 to the exhaust interface 13, then the electromagnetic valve right first electromagnetic valve 10 is opened, and the left molecular sieve oxygen flows into the right molecular sieve tank 24 through the right first electromagnetic valve 10 to.
Then rapidly closing the left first electromagnetic valve 6, the left third electromagnetic valve 8 and the right second electromagnetic valve 11, opening the right third electromagnetic valve 12 and the left second electromagnetic valve 7, leading the compressed air generated by the compressed air pump to enter the right molecular sieve tank 24 through the compressed air input interface 14, due to the obstruction of the left and right molecular sieve flow restrictors 30, the compressed air creates pressure in the right molecular sieve tank 24, under the action of pressure, the right molecular sieve tank 24 adsorbs nitrogen in the air to generate high-concentration oxygen, the oxygen output by the right molecular sieve tank 24 is divided into three paths, one path flows into the middle cavity for storage through the left one-way valve 32, the other path flows into the right cavity for storage through the right first electromagnetic valve 10, the other path flows into the left molecular sieve tank 25 through the flow restrictor 30 at a certain flow rate to blow and discharge the nitrogen adsorbed by the left molecular sieve tank 25 last time through the left second electromagnetic valve 7 to the exhaust port 13, then the left third electromagnetic valve 8 is opened, and the right molecular sieve oxygen flows into the left molecular sieve tank 25 through the left third electromagnetic valve 8 for final blowing. Then rapidly closing the left second electromagnetic valve 7, the right third electromagnetic valve 12 and the right first electromagnetic valve 10, and opening the left first electromagnetic valve and the right second electromagnetic valve 11; and (4) circulating in sequence, continuously performing the processes of pressurization adsorption and decompression adsorption blowing-discharge on the left molecular sieve tank and the right molecular sieve tank, and continuously generating high-concentration oxygen.
In this embodiment, the lower cover 31 of the oxygen storage tank is further provided with a sixth drainage groove from the middle cavity to the left cavity, the sixth drainage groove is provided with a left middle cavity flow restrictor 35 of the oxygen storage tank, and oxygen stored in the middle cavity flows into the left cavity at a certain flow rate to be stored.
A seventh drainage groove, an eighth drainage groove and a left and right cavity control electromagnetic valve 9 are also arranged on the electromagnetic valve seat 5, one end of the seventh drainage groove is aligned with a hole in the upper cover 4 of the oxygen storage tank, which is communicated with the left cavity, and the other end of the seventh drainage groove is communicated with the input port of the left and right cavity control electromagnetic valve 9; one end of the eighth drainage groove is aligned with a hole in the upper cover 4 of the oxygen storage tank, which is communicated with the right cavity, and the other end of the eighth drainage groove is communicated with an output port of the left and right cavity control electromagnetic valve 9; a pressure sensor 16 is arranged at the middle cavity of the upper cover 4 of the oxygen storage tank, the pressure sensor 16 monitors the pressure in the middle cavity, when a certain threshold value is exceeded, the left and right cavity control electromagnetic valves 9 are opened, oxygen in the left cavity flows into the right cavity, and the compression air pump is closed after the air pressure is balanced.
The pressure of three chambers of the oxygen gas storage tank 1 is balanced by the action of the left and right chamber control electromagnetic valves 9 and the start and stop of the compression air pump, so that the oxygen gas storage tank 1 automatically keeps a certain oxygen storage capacity. In addition, due to the use of the pressure sensor 16, the left check valve 36 and the right check valve 32, when any electromagnetic valve of the equipment fails, the internal pressures of the left molecular sieve tank, the right molecular sieve tank and the oxygen storage tank can be ensured not to exceed the limit, and the use safety is ensured.
The molecular sieve oxygenerator of the portable oxygenerator shown in this embodiment also contains a plurality of gas circuit debugging port plugs 15 for when the molecular sieve oxygenerator of the portable oxygenerator leaves the factory, the pressure in three cavities is debugged.
The molecular sieve oxygen generation mechanism of the portable oxygen generator shown in the embodiment also comprises a left compressed air input guide plate 22 arranged below a compressed air input port of the left molecular sieve tank, and a right compressed air input guide plate 19 arranged below a compressed air input port of the right molecular sieve tank, so that compressed air can uniformly enter the left molecular sieve tank and the right molecular sieve tank, and the adsorption efficiency of the molecular sieve is improved.
The molecular sieve oxygen generation mechanism of the portable oxygen generator shown in the embodiment is controlled by a single chip microcomputer to open and close a left first electromagnetic valve 6, a left second electromagnetic valve 7, a left third electromagnetic valve 8, a left cavity control electromagnetic valve 9, a right first electromagnetic valve 10, a right second electromagnetic valve 11 and a right third electromagnetic valve 12, is powered by a lithium battery, and has the characteristics of simple and compact structure, lightness, high reliability and good process, and an air pump compresses air for supplying air.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (8)
1. The utility model provides a molecular sieve oxygenerator of portable oxygenerator constructs, contains oxygen gas holder (1), right molecular sieve jar (24), left molecular sieve jar (25), solenoid valve seat (5) and lower gas circuit lid (34), its characterized in that:
the interior of the oxygen storage tank (1) is divided into a left cavity, a middle cavity and a right cavity, a left molecular sieve tank (25) is placed in the left cavity, and a right molecular sieve tank (24) is placed in the right cavity;
an oxygen storage tank upper cover (4) is arranged at the top end of the oxygen storage tank (1), an electromagnetic valve seat (5) is installed on the oxygen storage tank upper cover (4), a left first electromagnetic valve (6) for controlling compressed air to be input into a left molecular sieve tank (25), a right third electromagnetic valve (12) for controlling compressed air to be input into a right molecular sieve tank (24), a left second electromagnetic valve (7) for controlling left molecular sieve tank (25) to exhaust, a right second electromagnetic valve (11) for controlling right molecular sieve tank (24) to exhaust, a left third electromagnetic valve (8) for controlling left molecular sieve tank (25) to output oxygen, a right first electromagnetic valve (10) for controlling right molecular sieve tank (24) to output oxygen, a first drainage groove is arranged between an input port of the left first electromagnetic valve (6) and an input port of the right third electromagnetic valve (12), and is communicated with a compressed air input interface (14), a second drainage groove is formed between the input port of the left second electromagnetic valve (7) and the input port of the right second electromagnetic valve (11), the second drainage groove is communicated with the exhaust interface (13), a third drainage groove is formed between the input port of the left third electromagnetic valve (8) and the input port of the right first electromagnetic valve (10), and the third drainage groove is communicated with the right cavity of the oxygen storage tank (1);
a left compressed air input hole connected with the output port of the left first electromagnetic valve (6) and a left exhaust hole connected with the output port of the left second electromagnetic valve (7) are arranged above the left molecular sieve tank (25) of the oxygen gas storage tank upper cover (4), and a right compressed air input hole connected with the output port of the right third electromagnetic valve (12) and a right exhaust hole connected with the output port of the right second electromagnetic valve (11) are arranged above the right molecular sieve tank (24) of the oxygen gas storage tank upper cover (4); the upper cover (4) of the oxygen gas storage tank is provided with a left molecular sieve oxygen output upper interface (18) connected with the output port of the left third electromagnetic valve (8) above the left cavity, and the upper cover (4) of the oxygen gas storage tank is provided with a right molecular sieve oxygen output upper interface (17) connected with the output port of the right first electromagnetic valve (10) above the right cavity;
the bottom end of the oxygen gas storage tank (1) is provided with an oxygen gas storage tank lower cover (31), the lower part of a left cavity of the oxygen gas storage tank lower cover (31) is provided with a left molecular sieve oxygen output lower connector (37), the other end of the left molecular sieve oxygen output lower connector (37) is communicated with the lower end of a left molecular sieve tank (25), the lower part of a right cavity is provided with a right molecular sieve oxygen output lower connector (28), and the other end of the right molecular sieve oxygen output lower connector (28) is communicated with the lower end of a right molecular sieve tank (24); the left molecular sieve oxygen output upper and lower connecting pipe (29) is connected with a left molecular sieve oxygen output upper interface (18) and a left molecular sieve oxygen output lower interface (37) in a left cavity, the right molecular sieve oxygen output upper and lower connecting pipe (27) is connected with a right molecular sieve oxygen output upper interface (17) and a right molecular sieve oxygen output lower interface (28) in a right cavity, and a flow restrictor (30) is arranged at the output port position of the lower end of the left molecular sieve tank (25) on the lower cover (31) of the oxygen gas storage tank;
lower gas circuit lid (34) are installed in oxygen gas holder lower cover (31) below, are equipped with fourth drainage groove and fifth drainage groove on lower gas circuit lid (34), the two ends in fourth drainage groove respectively with left molecular sieve jar (25) and the delivery outlet UNICOM of right molecular sieve jar (24) lower extreme, the both ends in fifth drainage groove respectively aim at with left check valve (36) of left molecular sieve jar (25) lower extreme UNICOM and with right check valve (32) of right molecular sieve jar (24) lower extreme UNICOM, the lumen UNICOM of fifth drainage groove and oxygen gas holder (1).
2. The molecular sieve oxygen generation mechanism of a portable oxygen generator as claimed in claim 1, wherein the electromagnetic valve seat (3) is installed at the installation position of the electromagnetic valve seat (5) and the oxygen storage tank upper cover (4), and the oxygen storage tank upper cover sealing gasket (20) is installed at the installation position of the oxygen storage tank (1) and the oxygen storage tank upper cover (4).
3. The molecular sieve oxygen generation mechanism of a portable oxygen generator as claimed in claim 1, wherein the lower gas path sealing gasket (33) is arranged at the installation position of the lower gas path cover (34) and the lower oxygen storage tank cover (31), and the lower oxygen storage tank cover sealing gasket (2) is arranged at the installation position of the lower oxygen storage tank cover (31) and the oxygen storage tank (1).
4. The molecular sieve oxygen generation mechanism of a portable oxygen generator as claimed in claim 1, wherein the lower cover (31) of the oxygen storage tank is further provided with a sixth drainage groove from the middle chamber to the left chamber, and the sixth drainage groove is provided with a left middle chamber flow restrictor (35) of the oxygen storage tank.
5. The molecular sieve oxygen generation mechanism of the portable oxygen generator according to claim 1, characterized in that a seventh drainage groove, an eighth drainage groove and left and right chamber control solenoid valves (9) are arranged on the solenoid valve seat (5), one end of the seventh drainage groove is aligned with a hole on the upper cover (4) of the oxygen storage tank communicated with the left chamber, and the other end is communicated with the input ports of the left and right chamber control solenoid valves (9); one end of the eighth drainage groove is aligned with a hole in the upper cover (4) of the oxygen storage tank, which is communicated with the right cavity, and the other end of the eighth drainage groove is communicated with an output port of the left and right cavity control electromagnetic valve (9); a pressure sensor (16) is arranged at the middle cavity of the upper cover (4) of the oxygen storage tank, the pressure sensor (16) monitors the pressure in the middle cavity, a left cavity control electromagnetic valve (9) and a right cavity control electromagnetic valve (9) are opened after a certain threshold value is exceeded, oxygen in the left cavity flows into the right cavity, and the compression air pump is closed after the air pressure is balanced.
6. The molecular sieve oxygen generation mechanism of a portable oxygen generator as claimed in claim 1, further comprising a plurality of gas path debugging port plugs (15) for debugging the pressure in the three chambers when the molecular sieve oxygen generation mechanism of the portable oxygen generator leaves the factory.
7. The molecular sieve oxygen-making mechanism of a portable oxygen generator as claimed in claim 1, characterized in that a left compressed air input guide plate (22) is arranged below the compressed air input port of the left molecular sieve tank, and a right compressed air input guide plate (19) is arranged below the compressed air input port of the right molecular sieve tank.
8. The molecular sieve oxygen generation mechanism of a portable oxygen generator as claimed in claim 1, wherein the surface is anodized by aluminum magnesium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Application publication date: 20201023 |