CN220102239U - Direct-acting electromagnetic valve of VPSA oxygenerator - Google Patents

Direct-acting electromagnetic valve of VPSA oxygenerator Download PDF

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Publication number
CN220102239U
CN220102239U CN202322949654.6U CN202322949654U CN220102239U CN 220102239 U CN220102239 U CN 220102239U CN 202322949654 U CN202322949654 U CN 202322949654U CN 220102239 U CN220102239 U CN 220102239U
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valve
valve body
sleeve
core
spring
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CN202322949654.6U
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朱笑波
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Shenyang Sea Turtle Medical Technology Co ltd
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Shenyang Sea Turtle Medical Technology Co ltd
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Abstract

The utility model discloses a direct-acting electromagnetic valve of a VPSA oxygenerator, which comprises a valve body, a valve rod assembly and a valve core assembly, wherein a molecular sieve connecting port, an air inlet and an air outlet which are communicated with the valve body are arranged on the valve body; the valve rod assembly is arranged in the valve body, the top of the valve body is in sealing connection with a plugging sleeve matched with the top of the valve rod assembly, and the bottom of the valve body is in sealing connection with the valve core assembly; the valve core assembly is matched with a valve rod assembly in the valve body, the valve rod assembly in the valve body is driven to reciprocate through the valve core assembly, so that an air inlet of the valve body is closed when the air inlet is communicated with a molecular sieve connecting port, and the air inlet is closed when the air outlet of the valve body is communicated with the molecular sieve connecting port. The utility model has the advantages of integrated positive and negative pressure, durable and stable work, light weight and small volume, well meets the use requirement of the oxygen generator and can help the oxygen generator to promote the oxygen production efficiency.

Description

Direct-acting electromagnetic valve of VPSA oxygenerator
Technical Field
The utility model belongs to the technical field of valves for oxygenerators, and particularly relates to a direct-acting electromagnetic valve of a VPSA oxygenerator.
Background
Currently, oxygenerators using a pressure swing adsorption vacuum negative pressure desorption (VPSA) technology on the market are very wide, a compressor and a molecular sieve constituting the oxygenerator are connected by using a control valve, one of the existing control valves used by the oxygenerator is a two-position three-way electromagnetic valve with two combined large flow rates, and the other control valve is a pilot valve special for a high-cost diaphragm oxygenerator; both of these valves are relatively costly, with the pilot valves used having the following problems: the pilot valve is mainly designed by controlling the valve rod action of a diaphragm type pilot valve seat by two miniature electromagnetic valves with low flow rate, so that the pilot control with high flow rate is realized, meanwhile, the simultaneous operation of positive pressure and negative pressure cannot be realized on one valve body, and a certain starting pressure is needed for opening; this pressure control scheme of the pilot valve not only increases the cost of the oxygenerator, but also causes the reliability of the oxygenerator to be reduced due to the number of valve bodies of the pilot valve. The existing control valve used for the oxygenerator is unmatched with the whole service life of the oxygenerator due to the valve body structure, aluminum alloy used by the valve body structure, silica gel material and other factors, and the service life of the oxygenerator is generally not less than 8000 hours, so that the sensitivity to trace impurities in gas is very high and easy to damage. The existing control valve used for the oxygenerator has the technical defects of heavy weight, large volume, poor corrosion resistance and need of starting pressure, and is difficult to meet the use requirement of the oxygenerator; therefore, there is an urgent need to develop a direct-acting electromagnetic valve of a VPSA oxygenerator, which can solve the above problems, so as to meet the use requirements of the oxygenerator.
Disclosure of Invention
The utility model aims at the problems, overcomes the defects of the prior art, and provides a direct-acting electromagnetic valve of a VPSA oxygenerator.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the direct-acting electromagnetic valve of the VPSA oxygenerator comprises a valve body, a valve rod assembly and a valve core assembly, wherein a molecular sieve connecting port, an air inlet and an air outlet which are communicated with the interior of the valve body are formed in the valve body; the valve rod assembly is arranged in the valve body, the top of the valve body is connected with a plugging sleeve matched with the top of the valve rod assembly in a sealing way, and the bottom of the valve body is connected with the valve core assembly in a sealing way; the valve core component is matched with the valve rod component in the valve body, and the valve rod component in the valve body is driven to reciprocate through the valve core component, so that the air outlet is closed when the air inlet of the valve body is communicated with the molecular sieve connecting port, and the air inlet is closed when the air outlet of the valve body is communicated with the molecular sieve connecting port.
Further, the left and right sides symmetry is provided with the molecular sieve connector on the valve body, and two molecular sieve connectors are first molecular sieve connector, second molecular sieve connector respectively, are provided with two valve rod assemblies in the valve body, and the cooperation is divided into upper and lower two spaced apart cavitys in the valve body between two valve rod assemblies and the valve body, and the cavity of top is linked together with the gas vent, and the cavity of below is linked together with the air inlet.
Further, the valve rod assembly comprises a first spring, a valve rod body, a rod body sealing rubber pad and a rod body outer seat sleeve, the valve rod body penetrates through the valve body, the first spring is embedded into the top end of the valve rod body, the end part of the first spring is exposed out of the valve rod body, the end part of the first spring is matched and abutted with the plugging sleeve, and the upper part of the valve rod body is in sealing connection with the plugging sleeve; the middle part of the valve rod body is fixedly sleeved with a rod body sealing rubber cushion, the lower part of the valve rod body is provided with a rod body outer seat sleeve, the rod body outer seat sleeve is in sealing connection with the valve body and the valve core assembly, and the bottom end of the valve rod body is matched and abutted with the valve core assembly.
Further, the valve core assembly comprises a coil mounting frame, a movable valve core, a static valve core, an electromagnetic coil, a second spring and a fixed mounting plate; the solenoid is fixed in on the coil mounting bracket, set up in the solenoid and move case, quiet case, the bottom of quiet case exposes in the coil mounting bracket and joint on the coil mounting bracket, move the case on inlay and establish the second spring, the second spring tip exposes in moving the case and with quiet case butt, the fixed mounting panel is fixed in on the coil mounting bracket, move the case upper end and expose in the fixed mounting panel, move case swing joint in solenoid, body of rod outer seat and valve body sealing connection are on the fixed mounting panel, move the top of case and the butt of valve body bottom, the elasticity of second spring is greater than the elasticity of first spring.
Further, the bottom of the static valve core is connected with a valve core clamping reed for clamping the static valve core on the coil mounting frame, a core sleeve rod is sleeved between the movable valve core and the electromagnetic coil, the outer protruding edge of the upper end of the core sleeve rod is connected to the fixed mounting plate in a hanging mode, and the lower end of the core sleeve rod is connected to the static valve core in a sleeving mode.
Further, a core sealing rubber pad is arranged at the lower edge of the top of the movable valve core.
Further, the molecular sieve connector, the air inlet and the air outlet are all provided with interface components, the interface components comprise a quick plug connector, a quick plug sleeve, a quick plug clamp spring and a quick plug seal rubber pad, the quick plug seal rubber pad is clamped on the inner sides of the molecular sieve connector, the air inlet and the air outlet, and the quick plug connector is sleeved with the quick plug clamp spring, the quick plug sleeve and the quick plug sleeve in sequence and then is in butt joint with the quick plug seal rubber pad.
Further, the plugging sleeve comprises a plugging clamping reed and a piston sleeve, the piston sleeve is in sealing connection with the top of the valve body, and the plugging clamping reed is fixed on the upper end face of the piston sleeve.
Further, the valve rod body and the outer seat sleeve of the valve rod body are made of self-lubricating polytetrafluoroethylene and carbon fiber modified polymer materials, and the valve body is made of polymer PP polymer materials.
Compared with the prior art, the utility model has the beneficial effects that:
the valve body provided with the molecular sieve connecting port, the air inlet and the air outlet, the valve rod assembly and the valve core assembly are matched to form the direct-acting electromagnetic valve of the VPSA oxygenerator, and the direct-acting electromagnetic valve is matched between the compressor of the oxygenerator and the molecular sieve, so that the direct-acting electromagnetic valve has the advantages of integration of positive and negative pressure, lasting and stable work, light weight and small volume; and the valve body, the valve rod body and the outer seat sleeve of the rod body are made of materials, so that the valve has strong corrosion resistance. The structure form of the direct-acting electromagnetic valve of the VPSA oxygenerator provided by the utility model is a normally open valve, so that the valve is in an open state without starting pressure, and the condition that air inlet directly enters from an air inlet of the electromagnetic valve to supply air to the molecular sieve is satisfied; can well meet the use of the oxygenerator and simultaneously can help the oxygenerator to improve the oxygen production efficiency.
Drawings
Fig. 1 is a schematic perspective view of an angle of a direct-acting solenoid valve of a VPSA oxygenerator according to the present utility model.
Fig. 2 is a schematic perspective view of another angle of a direct-acting solenoid valve of a VPSA oxygenerator according to the present utility model.
FIG. 3 is a schematic diagram of the explosion structure of a direct-acting solenoid valve of a VPSA oxygenerator according to the utility model.
Fig. 4 is a schematic cross-sectional view of a direct-acting solenoid valve for a VPSA oxygenerator according to the present utility model.
In the figure: 1 is an air inlet; 2 is an exhaust port; 3 is a first molecular sieve connection port; 4 is a plugging sleeve; 5 is a valve body; 6 is a second molecular sieve connection port; 7 is an interface component; 8 is a valve core component; 9 is a fixed mounting plate; 10 is a first spring; 11 is a sealing ring; 12 is a valve rod body; 13 is a rod body sealing rubber cushion; 14 is the outer seat sleeve of the rod body; 15 is a cavity; 401 is a plugging clip reed; 402 is a piston sleeve; 701 is a quick connector; 702 is a quick connect jacket; 703 is a quick-insert ferrule; 704 is a quick-insertion clamp spring; 705 is a quick-insertion sealing rubber pad; 801 is a core seal cushion; 802 is a movable valve core; 803 is a second spring; 804 is the core loop bar; 805 is a coil mount; 806 is an electromagnetic coil; 807 is a valve core reed; 808 is the static spool.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 4, the embodiment of the utility model provides a direct-acting electromagnetic valve of a VPSA oxygenerator, which comprises a valve body 5, a valve rod assembly and a valve core assembly 8, wherein a first molecular sieve connecting port 3, a second molecular sieve connecting port 6, an air inlet 1 and an air outlet 2 which are communicated with the interior of the valve body 5 are arranged on the valve body 5; the first molecular sieve connecting port 3 and the second molecular sieve connecting port 6 are symmetrically arranged at the left side and the right side of the valve body 5, two valve rod assemblies are arranged in the valve body 5, the two valve rod assemblies are matched with the valve body 5 to divide the interior of the valve body 5 into an upper cavity 15 and a lower cavity 15, the upper cavity 15 is communicated with the exhaust port 2, and the lower cavity 15 is communicated with the air inlet 1; the top of the valve body 5 is connected with a plugging sleeve 4 matched with the top of the valve rod assembly in a sealing way, and the bottom of the valve body 5 is connected with a valve core assembly 8 in a sealing way; the valve core assembly 8 is matched with a valve rod assembly in the valve body 5, the valve rod assembly in the valve body 5 is driven to reciprocate through the valve core assembly 8, the air inlet 1 of the valve body 5 can be closed when the air inlet 1 is communicated with the first molecular sieve connecting port 3 and the second molecular sieve connecting port 6, and the air inlet 1 can be closed when the air outlet 2 of the valve body 5 is communicated with the first molecular sieve connecting port 3 and the second molecular sieve connecting port 6.
The plugging sleeve 4 comprises a plugging clamping reed 401 and a piston sleeve 402, the piston sleeve 402 is in sealing connection with the top of the valve body 5 through a sealing ring 11, and the plugging clamping reed 401 is fixed on the upper end face of the piston sleeve 402.
The valve rod assembly comprises a first spring 10, a valve rod body 12, a rod body sealing rubber pad 13 and a rod body outer seat 14, wherein the valve rod body 12 penetrates through the valve body 5, the first spring 10 is embedded at the top end of the valve rod body 12, the end part of the first spring 10 is exposed out of the valve rod body 12, the end part of the first spring 10 is matched and abutted with the plugging sleeve 4, and the upper part of the valve rod body 12 is in sealing connection with the plugging sleeve 4 through a sealing ring 11; the middle part of the valve rod body 12 is fixedly sleeved with a rod body sealing rubber pad 13, the lower part of the valve rod body 12 is provided with a rod body outer seat 14, the rod body outer seat 14 is in sealing connection with the valve body 5 and the valve core assembly 8 through a sealing ring 11, and the bottom end of the valve rod body 12 is matched and abutted with the valve core assembly 8.
The valve core assembly 8 comprises a coil mounting frame 805, a movable valve core 802, a static valve core 808, an electromagnetic coil 806, a second spring 803 and a fixed mounting plate 9, wherein the movable valve core 802 and the static valve core 808 are iron cores; the electromagnetic coil 806 is fixed on the coil mounting frame 805, the movable valve core 802 and the static valve core 808 are arranged in the electromagnetic coil 806, the bottom of the static valve core 808 is exposed out of the coil mounting frame 805 and is clamped on the coil mounting frame 805, the second spring 803 is embedded on the movable valve core 802, the end part of the second spring 803 is exposed out of the movable valve core 802 and is abutted with the static valve core 808, the fixed mounting plate 9 is fixed on the coil mounting frame 805, the upper end of the movable valve core 802 is exposed out of the fixed mounting plate 9, the movable valve core 802 is movably connected in the electromagnetic coil 806, the rod body outer seat 14 and the valve body 5 are connected on the fixed mounting plate 9 in a sealing manner, the top of the movable valve core 802 is abutted with the bottom end of the valve rod body 12, and the elastic force of the second spring 803 is larger than that of the first spring 10. The bottom of the static valve core 808 is connected with a valve core clamping reed 807 for clamping the static valve core 808 on a coil mounting frame 805, a core sleeve rod 804 is sleeved between the movable valve core 802 and the electromagnetic coil 806, the outer protruding edge of the upper end of the core sleeve rod 804 is hung on the fixed mounting plate 9, the lower end of the core sleeve rod 804 is sleeved on the static valve core 808, and a core sealing rubber gasket 801 is arranged at the lower edge of the top of the movable valve core 802.
The molecular sieve connector, the air inlet 1 and the air outlet 2 are all provided with an interface component 7, the interface component 7 comprises a quick connector 701, a quick connector sleeve 702, a quick connector sleeve 703, a quick connector clamp spring 704 and a quick connector seal rubber pad 705, the quick connector seal rubber pad 705 is clamped on the inner sides of the molecular sieve connector, the air inlet 1 and the air outlet 2, and the quick connector 701 is sleeved with the quick connector clamp spring 704, the quick connector sleeve 703 and the quick connector sleeve 702 in sequence and then is in butt joint with the quick connector seal rubber pad 705. Specifically, the interface components 7 arranged on the molecular sieve connection port, the air inlet 1 and the air outlet 2 are formed by a quick plug connector 701, a quick plug outer sleeve 702, a quick plug clamping sleeve 703, a quick plug clamping spring 704 and a quick plug sealing rubber pad 705, so that the quick plug connection between the utility model and the compressor and the molecular sieve can be realized.
The valve rod body 12 and the rod body outer seat 14 of the valve rod assembly are made of self-lubricating polytetrafluoroethylene and carbon fiber modified polymer materials, and the valve body 5 is made of polymer PP polymer materials.
The utility model relates to a direct-acting electromagnetic valve of a VPSA oxygenerator, which is applicable to gas, and the working principle is explained by combining the technical scheme of the utility model and a drawing: when the electromagnetic coil 806 does not pass through the electromagnetic valve under the power-off state, so that the movable valve core 802 and the static valve core 808 are separated, the elastic force of the second spring 803 is larger than that of the first spring 10, the movable valve core 802 always pushes the valve rod body 12 of the valve rod assembly upwards under the action of the second spring 803, the first spring 10 is compressed, at the moment, the cavity 15 below the inside of the valve body 5 is communicated with the first molecular sieve connecting port 3 and the second molecular sieve connecting port 6, namely the air inlet 1 is opened, the cavity 15 above the inside of the valve body 5 is not communicated with the first molecular sieve connecting port 3 and the second molecular sieve connecting port 6, namely the air outlet 2 is closed, and the purpose of supplying air to the molecular sieve is achieved; when the electromagnetic coil 806 is excited by passing current under the electrified state, the movable valve core 802 and the static valve core 808 are attracted, the second spring 803 is compressed, the first spring 10 can generate downward thrust to the valve rod body 12 of the valve rod assembly all the time, at this time, the cavity 15 above the valve body 5 is communicated with the first molecular sieve connection port 3 and the second molecular sieve connection port 6, i.e. the exhaust port 2 is opened, the cavity 15 below the valve body 5 is not communicated with the first molecular sieve connection port 3 and the second molecular sieve connection port 6, i.e. the air inlet 1 is closed, and thus the purpose of exhausting air is achieved.
Because the movable valve core 802 of the valve core assembly 8 drives the valve rod body 12 of the valve rod assembly to reciprocate at high frequency, the valve rod body 12 and the outer seat 14 of the valve rod assembly are made of self-lubricating polytetrafluoroethylene and carbon fiber modified polymer materials, so that the valve rod body 12 has self-lubricating performance in the oil-free environment operation of the valve body 5, the friction coefficient is reduced, and the service life is prolonged. Meanwhile, the material and structural characteristics of the valve body 5 and the valve rod body 12 ensure that the rigidity and deformation resistance functions are increased under the condition of reducing the volume and the weight of the whole valve, so that the valve can bear larger excessive flow and air pressure impact, and even if the trace impurity or corrosive content of the gas does not influence the normal operation, the reliability of the valve is greatly improved.
The valve body 5 is made of nontoxic polymer PP polymeric materials, so that the weight of the valve body 5 can be greatly reduced, and the overall weight of the direct-acting electromagnetic valve of the VPSA oxygenerator is light, and the corrosion resistance is good.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (7)

1. A VPSA oxygenerator direct-acting type electromagnetic valve is characterized in that: the valve comprises a valve body, a valve rod assembly and a valve core assembly, wherein a molecular sieve connecting port, an air inlet and an air outlet which are communicated with the interior of the valve body are formed in the valve body; the valve rod assembly is arranged in the valve body, the top of the valve body is connected with a plugging sleeve matched with the top of the valve rod assembly in a sealing way, and the bottom of the valve body is connected with the valve core assembly in a sealing way; the valve core component is matched with the valve rod component in the valve body, and the valve rod component in the valve body is driven to reciprocate through the valve core component, so that the air outlet is closed when the air inlet of the valve body is communicated with the molecular sieve connecting port, and the air inlet is closed when the air outlet of the valve body is communicated with the molecular sieve connecting port; the valve body is internally divided into an upper cavity and a lower cavity by matching between the two valve rod assemblies and the valve body, the upper cavity is communicated with the exhaust port, and the lower cavity is communicated with the air inlet; the valve rod assembly comprises a first spring, a valve rod body, a rod body sealing rubber pad and a rod body outer seat sleeve, the valve rod body penetrates through the valve body, the first spring is embedded into the top end of the valve rod body, the end part of the first spring is exposed out of the valve rod body, the end part of the first spring is matched and abutted with the plugging sleeve, and the upper part of the valve rod body is in sealing connection with the plugging sleeve; the middle part of the valve rod body is fixedly sleeved with a rod body sealing rubber cushion, the lower part of the valve rod body is provided with a rod body outer seat sleeve, the rod body outer seat sleeve is in sealing connection with the valve body and the valve core assembly, and the bottom end of the valve rod body is matched and abutted with the valve core assembly.
2. The VPSA oxygenerator direct-acting solenoid valve of claim 1, wherein: the valve core assembly comprises a coil mounting frame, a movable valve core, a static valve core, an electromagnetic coil, a second spring and a fixed mounting plate; the solenoid is fixed in on the coil mounting bracket, set up in the solenoid and move case, quiet case, the bottom of quiet case exposes in the coil mounting bracket and joint on the coil mounting bracket, move the case on inlay and establish the second spring, the second spring tip exposes in moving the case and with quiet case butt, the fixed mounting panel is fixed in on the coil mounting bracket, move the case upper end and expose in the fixed mounting panel, move case swing joint in solenoid, body of rod outer seat and valve body sealing connection are on the fixed mounting panel, move the top of case and the butt of valve body bottom, the elasticity of second spring is greater than the elasticity of first spring.
3. The VPSA oxygenerator direct-acting solenoid valve of claim 2, wherein: the bottom of the static valve core is connected with a valve core clamping reed for clamping the static valve core on a coil mounting frame, a core sleeve rod is sleeved between the movable valve core and the electromagnetic coil, the outer protruding edge of the upper end of the core sleeve rod is connected to a fixed mounting plate in a hanging mode, and the lower end of the core sleeve rod is connected to the static valve core in a sleeving mode.
4. The VPSA oxygenerator direct-acting solenoid valve of claim 2, wherein: and a core sealing rubber pad is arranged at the lower edge of the top of the movable valve core.
5. The VPSA oxygenerator direct-acting solenoid valve of claim 1, wherein: the molecular sieve connector, the air inlet and the air outlet are all provided with interface components, the interface components comprise a quick plug connector, a quick plug sleeve, a quick plug clamping spring and a quick plug sealing rubber cushion, the quick plug sealing rubber cushion is clamped on the inner sides of the molecular sieve connector, the air inlet and the air outlet, and the quick plug connector is sequentially sleeved with the quick plug clamping spring, the quick plug clamping sleeve and the quick plug sleeve and then is in butt joint with the quick plug sealing rubber cushion.
6. The VPSA oxygenerator direct-acting solenoid valve of claim 1, wherein: the plugging sleeve comprises a plugging clamping reed and a piston sleeve, the piston sleeve is in sealing connection with the top of the valve body, and the plugging clamping reed is fixed on the upper end face of the piston sleeve.
7. The VPSA oxygenerator direct-acting solenoid valve of claim 1, wherein: the valve rod body and the outer seat sleeve of the valve rod body are made of self-lubricating polytetrafluoroethylene and carbon fiber modified polymer materials, and the valve body is made of polymer PP polymer materials.
CN202322949654.6U 2023-11-01 2023-11-01 Direct-acting electromagnetic valve of VPSA oxygenerator Active CN220102239U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322949654.6U CN220102239U (en) 2023-11-01 2023-11-01 Direct-acting electromagnetic valve of VPSA oxygenerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322949654.6U CN220102239U (en) 2023-11-01 2023-11-01 Direct-acting electromagnetic valve of VPSA oxygenerator

Publications (1)

Publication Number Publication Date
CN220102239U true CN220102239U (en) 2023-11-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322949654.6U Active CN220102239U (en) 2023-11-01 2023-11-01 Direct-acting electromagnetic valve of VPSA oxygenerator

Country Status (1)

Country Link
CN (1) CN220102239U (en)

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