CN214305457U

CN214305457U - Pressure equalizing valve and oxygen generator applying same

Info

Publication number: CN214305457U
Application number: CN202022735484.8U
Authority: CN
Inventors: 李磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-09-28
Anticipated expiration: 2030-11-24

Abstract

The utility model belongs to the technical field of the oxygenerator, concretely relates to equalizing valve and applied oxygenerator of this equalizing valve, this equalizing valve includes disk seat, valve body and case, inside first valve passageway and the second valve passageway that runs through that is provided with of disk seat, the both ends of first valve passageway and second valve passageway all communicate the valve pocket, the valve body is connected in the both sides of disk seat, the case is flexible to be set up in the inside of valve pocket and valve body, and can push up to the both ends of first valve passageway, the diameter of first valve passageway is greater than the diameter of second valve passageway. The utility model discloses a set up the second valve passageway in the disk seat, because the valve pocket intercommunication of second valve passageway and both sides has formed the state of usual, the diameter of second valve passageway is less than the diameter of second valve passageway moreover, consequently, when great oxygen flow passes through, partly oxygen can circulate through second valve passageway, carries out the pressure release in to the disk seat, makes and reaches the purpose of voltage-sharing in the disk seat, has prevented that atmospheric pressure is too big and has caused the jam of gas circuit.

Description

Pressure equalizing valve and oxygen generator applying same

Technical Field

The utility model belongs to the technical field of the oxygenerator, concretely relates to equalizing valve and applied this equalizing valve's oxygenerator.

Background

With the continuous progress of science and technology, the oxygen generation technology of Pressure Swing Adsorption (PSA) has been widely applied, and at present, besides large-scale oxygen generators, small molecular sieve oxygen generators are also available, which greatly meets the medical and household portable oxygen absorption requirements.

The portable molecular sieve oxygen generator in the prior art generally adopts a double molecular tower type, alternately adsorbs and desorbs to keep the continuity of oxygen generation, and the working principle is as follows: air is adsorbed by a molecular sieve in a molecular sieve tower A, nitrogen and oxygen are separated to obtain high-purity oxygen, one part of the separated high-purity oxygen enters an oxygen storage tank or is directly supplied for human breathing, the other part of the separated high-purity oxygen enters a molecular sieve tower B through a back flushing valve at the top of the tower and is flushed, at the moment, the molecular sieve tower B is communicated with the atmosphere, nitrogen molecules adsorbed by the molecular sieve in the tower are in a free state in the last period, the input pure oxygen blows the nitrogen molecules out of the molecular sieve tower B, the molecular sieve tower B carries out a desorption process, after a period of time, the molecular sieve in the molecular sieve tower A is saturated, the molecular sieve tower B enters an adsorption process after the desorption of the molecular sieve in the molecular sieve tower B is finished, and the molecular sieve tower A enters a desorption process, so that continuous oxygen generation is realized. However, when the purging is performed between the tops of the molecular sieve towers a and B in the prior art, the oxygen flow is too large, which easily causes the pressure inside the blowback valve to be too large, and further affects the smoothness of the gas path.

In view of the above, there is a need for further improvements to the above prior art to meet practical production needs.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure equalizing valve has solved the defect that exists among the above-mentioned prior art effectively.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a pressure equalizing valve, includes disk seat, valve body and case, disk seat inside is provided with first valve passageway and the second valve passageway that runs through, first valve passageway with the both ends of second valve passageway all communicate the valve pocket, the valve body connect in the both sides of disk seat, the case stretch out and draw back set up in the valve pocket with the inside of valve body, and can be right the both ends of first valve passageway are pushed up and are supported, the diameter of first valve passageway is greater than the diameter of second valve passageway.

As right the utility model discloses in the improvement of equalizing valve, the second valve passageway is in including setting up in the first subchannel at both ends and setting second subchannel between the first subchannel, first subchannel with the second subchannel forms the stair structure.

As an improvement to the pressure equalizing valve of the present invention, the diameter of the first sub-passage is larger than the diameter of the second sub-passage.

As right the utility model discloses in the improvement of equalizing valve, the inside of valve body is provided with solenoid.

As right the utility model discloses in the improvement of equalizing valve, the case with be provided with the elastomer between the valve body.

As an improvement to the pressure equalizing valve of the present invention, the elastic body is a spring member, an elastic silicone member, an elastic rubber member or an elastic plastic member.

As right the utility model discloses in the improvement of equalizing valve, the case with be provided with sealed the pad between the first valve passageway.

As right the utility model discloses in the improvement of equalizing valve, sealed the pad is silica gel pad or rubber pad.

As right the utility model discloses in the improvement of equalizing valve, the disk seat still is provided with first through-hole and second through-hole, first through-hole with the second through-hole respectively with both sides the valve pocket intercommunication.

The beneficial effects of the utility model reside in that: compared with the prior art, the utility model discloses a set up the second valve passageway in the disk seat, because the valve pocket intercommunication of second valve passageway and both sides has formed the state of always opening, and the diameter of second valve passageway is less than the diameter of second valve passageway moreover, consequently, when great oxygen flow passes through, partly oxygen can circulate through second valve passageway, carries out the pressure release in to the disk seat, makes and reaches the purpose of voltage-sharing in the disk seat, has prevented that atmospheric pressure is too big and cause the jam of gas circuit.

The utility model also provides an oxygenerator, including the blowback valve, the blowback valve is in above-mentioned arbitrary one section the equalizing valve. The pressure equalizing valve is applied to the oxygen generator, so that the stability of air pressure in the back flushing valve of the oxygen generator can be effectively improved in the process of flushing the molecular sieve tower, and the smoothness of air path transmission is ensured.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided to explain the invention and not to constitute an undue limitation on the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the oxygen generator of the present invention;

wherein, 0-blowback valve; 1-a valve seat; 2-a valve body; 3-a valve core; 4-an elastomer; 5-a sealing gasket; 11-a first valve channel; 12-a second valve passage; 13-a valve cavity; 14-a first via; 15-a second via; 121-a first subchannel; 122-second branch channel.

Detailed Description

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", horizontal "and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings, which are not intended to limit the present invention.

Referring to fig. 1, the pressure equalizing valve shown in this embodiment includes a valve seat 1, a valve body 2 and a valve core 3, a first valve passage 11 and a second valve passage 12 are provided inside the valve seat 1, both ends of the first valve passage 11 and the second valve passage 12 are all communicated with a valve cavity 13, the valve body 2 is connected to both sides of the valve seat 1, the valve core 3 is telescopically arranged inside the valve cavity 13 and the valve body 2, and can push against both ends of the first valve passage 11, and the diameter of the first valve passage 11 is greater than that of the second valve passage 12. The utility model discloses in, first valve passageway 11 can be opened or closed through the flexible active control of case 3, and second valve passageway 12 is then for the state of normal intercommunication, and the diameter of second valve passageway 12 is less than the diameter of first valve passageway 11, therefore, in the course of the work, when the air flow is too big, partly air current can be passed through by second valve passageway 12, carry out the pressure release to 1 inside of disk seat, make and reach the purpose of voltage-sharing in the disk seat 1, prevented that atmospheric pressure is too big and cause the jam of gas circuit.

The second valve passage 12 includes a first sub-passage 121 disposed at both ends and a second sub-passage 122 disposed between the first sub-passage 121, wherein the diameter of the first sub-passage 121 is greater than that of the second sub-passage 122, so that the first sub-passage 121 and the second sub-passage 122 form a stepped passage structure, and the diameters of the passages are gradually reduced along the direction of the airflow flowing, thereby playing a certain role of buffering and pressure stabilization, and further improving the effect of pressure equalization.

The utility model discloses a solenoid valve, the inside of valve body 2 is provided with solenoid, and is provided with elastomer 4 between case 3 and the valve body 2, and at the during operation, solenoid circular telegram, case 3 do flexible activity under the electromagnetic action and push up to or along valve body 2's internal motion first valve passageway 11, cushion through elastomer 4, realize opening and closing control of first valve passageway 11. In the present invention, the elastic body 4 may be a spring member.

Be provided with sealed 5 between case 3 and the first valve passageway 11, through setting up sealed 5, can play sealed effect when case 3 top supports first valve passageway 11, prevent gas leakage, simultaneously, also can cushion case 3 and first valve passageway 11, prevent that case 3 from supporting for a long time and causing the wearing and tearing to damage first valve passageway 11, improved the life of valve.

In practical use, the sealing gasket 5 may be a rubber gasket, such as a binary or ternary ethylene-propylene rubber gasket, a nitrile rubber gasket, a fluorine rubber gasket, or a silica gel gasket.

In addition, the valve seat 1 is further provided with a first through hole 14 and a second through hole 15, and the first through hole 14 and the second through hole 15 are respectively communicated with the valve cavities 13 on the two sides. Wherein, the first through hole 14 and the second through hole 15 are respectively communicated with two molecular sieve towers of the oxygen generator to form an air inlet and outlet passage.

Referring to fig. 2, the present invention further provides an oxygen generator, which comprises a back-flushing valve 0, wherein the back-flushing valve 0 is an equalizing valve in the above embodiment. By applying the pressure equalizing valve in the oxygen generator, the pressure stability in the back-flushing valve 0 of the oxygen generator can be effectively improved in the process of flushing the molecular sieve tower, and the smoothness of gas path transmission is ensured.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed above, or as otherwise known in the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A pressure equalizing valve, characterized in that: including disk seat (1), valve body (2) and case (3), disk seat (1) inside is provided with first valve passageway (11) and second valve passageway (12) that run through, first valve passageway (11) with the both ends of second valve passageway (12) all communicate valve pocket (13), valve body (2) connect in the both sides of disk seat (1), case (3) flexible set up in valve pocket (13) with the inside of valve body (2) to can be right the both ends of first valve passageway (11) are pushed up and are supported, the diameter of first valve passageway (11) is greater than the diameter of second valve passageway (12).

2. The pressure equalizing valve of claim 1, wherein: the second valve passage (12) includes a first sub-passage (121) disposed at both ends and a second sub-passage (122) disposed between the first sub-passage (121), and the first sub-passage (121) and the second sub-passage (122) form a stepped structure.

3. The pressure equalizing valve of claim 2, wherein: the diameter of the first partial channel (121) is greater than the diameter of the second partial channel (122).

4. The pressure equalizing valve of claim 1, wherein: an electromagnetic coil is arranged inside the valve body (2).

5. The pressure equalizing valve of claim 1, wherein: an elastic body (4) is arranged between the valve core (3) and the valve body (2).

6. The pressure equalizing valve of claim 5, wherein: the elastic body (4) is a spring part, an elastic silica gel part, an elastic rubber part or an elastic plastic part.

7. The pressure equalizing valve of claim 1, wherein: a sealing gasket (5) is arranged between the valve core (3) and the first valve channel (11).

8. The pressure equalizing valve of claim 7, wherein: the sealing gasket (5) is a silica gel gasket or a rubber gasket.

9. The pressure equalizing valve of claim 1, wherein: the valve seat (1) is further provided with a first through hole (14) and a second through hole (15), and the first through hole (14) and the second through hole (15) are communicated with the valve cavities (13) on the two sides respectively.

10. An oxygen generator, characterized in that: the pressure equalizing valve comprises a back-blowing valve (0), wherein the back-blowing valve (0) is the pressure equalizing valve in any one of claims 1-9.