CN112628111A - Double-gas-path multi-separator oxygen production and supply system - Google Patents
Double-gas-path multi-separator oxygen production and supply system Download PDFInfo
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- CN112628111A CN112628111A CN202011486761.4A CN202011486761A CN112628111A CN 112628111 A CN112628111 A CN 112628111A CN 202011486761 A CN202011486761 A CN 202011486761A CN 112628111 A CN112628111 A CN 112628111A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/12—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/123—Fluid connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/06—Combinations of two or more pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention discloses a double-gas-path multi-separator oxygen production and supply system, and relates to the technical field of oxygen production and supply systems; the device comprises an AB adsorption tower, a CD adsorption tower, an individual terminal, a dispersion terminal, a first air path connecting pipe, a vehicle-mounted air source, a second air path connecting pipe, a standby air compressor, a first air path valve group, a second air path valve group, an air pressure monitoring device, an oxygen sensor, a closed-loop control system and the like. The system preferentially utilizes the vehicle-mounted compressed air source, and nitrogen and oxygen are separated through the two groups of adsorption towers, so that the oxygen concentration in the carriage environment is improved, and meanwhile, when the vehicle-mounted compressed air pressure is monitored to be low, the flow is small or a train power system fails, the redundant compressed air source is automatically started, and high-concentration oxygen is separated and output through the AB adsorption towers to be used by individual terminals.
Description
Technical Field
The invention belongs to the technical field of oxygen production and supply systems, and particularly relates to a double-gas-path multi-separator oxygen production and supply system.
Background
When the motor train unit is on a plateau, the oxygen concentration in the compartment is low, and passengers are prone to lack of oxygen.
The existing motor train unit only has a fresh air system and cannot improve the oxygen concentration in a carriage.
Meanwhile, when the motor train unit breaks down, the electric power system of the motor train unit cannot supply power to the fresh air system, and at the moment, the oxygen concentration in the compartment is further reduced, so that the life safety of passengers is threatened.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an oxygen supply system with double air paths and multiple separators.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a many separators of double-gas circuit system oxygen supply system, including reserve air compressor machine, first adsorption tower, the second adsorption tower, the personal use terminal who connects with the output of first adsorption tower, the oxygen dispersion terminal who connects with the output of second adsorption tower, a first gas circuit connecting pipe for communicateing reserve air compressor machine and first adsorption tower, vehicle-mounted air compressor machine, a second gas circuit connecting pipe for communicateing vehicle-mounted air compressor machine and first adsorption tower, a second gas circuit connecting pipe for communicateing vehicle-mounted air compressor machine and second adsorption tower, a first gas circuit valve that is located on first gas circuit connecting pipe, a second gas circuit valve that is located on the second gas circuit connecting pipe, an atmospheric pressure monitoring devices for controlling first gas circuit valve and second gas circuit valve to open and close according to vehicle-mounted air compressor machine's output atmospheric pressure.
Preferably, an air pretreatment device is arranged on the second air path connecting pipe.
Preferably, the first adsorption tower and the second adsorption tower are connected with a monitoring system.
Preferably, the number of the second adsorption columns is at least two.
Preferably, the air pressure monitoring device comprises a pipe fitting, a piston, a spring and a tension sensor, wherein the upper end of the pipe fitting is communicated with the vehicle-mounted air compressor, the piston is connected in the pipe fitting in a sliding mode, one end of the spring is connected to the piston, and the tension sensor is used for measuring the tension of the spring;
the other end of the spring is connected to a pipe fitting, and the tension sensor is connected with the first air circuit valve;
the second gas circuit valves are positioned on the pipe wall of the pipe fitting, the second gas circuit valves are uniformly arranged along the direction of the pipe fitting, the uppermost second gas circuit valve is simultaneously connected with the first adsorption tower and one of the second adsorption towers, and the other second gas circuit valves are respectively connected with other corresponding second adsorption towers;
the pipe fitting is provided with a round hole at a position corresponding to the second gas circuit valve;
the second gas circuit valve comprises a rotating plate which is rotatably connected in the corresponding round hole and a groove which is positioned on one side of the rotating plate close to the inner part of the pipe fitting;
the lower side of the groove is communicated with the lower edge of the rotating plate;
the second gas circuit valve also comprises a gas outlet hole positioned at the bottom of the groove, a rotating shaft rotatably connected with the inner walls of two opposite sides of the groove, a reset spring used for resetting the rotating shaft, a sealing plate of which the upper end is fixedly connected with the rotating shaft, a rubber sheet positioned at one side of the sealing plate close to the gas outlet hole, a hiding groove positioned at one side of the rotating plate close to the outer part of the pipe fitting, a second rotating shaft rotatably connected in the hiding groove, a driving gear fixedly connected with the second rotating shaft, a one-way bearing positioned between the second rotating shaft and the rotating shaft, a bracket fixedly connected with the rotating plate, a third rotating shaft rotatably connected with the bracket, an amplifying gear fixedly connected with the third rotating shaft, a driven gear fixedly connected with the third rotating shaft and a crown gear coaxial with the;
the crown gear is fixedly connected with the pipe fitting, the amplifying gear is meshed with the driving gear, and the driven gear is meshed with the crown gear; the lower end of the sealing plate inclines towards one side of the interior of the pipe fitting, the axis of the rotating shaft is intersected with the axis of the rotating plate, the height of the piston is larger than the diameter of the rotating plate, and the piston is positioned above the second air path valve;
when the piston is abutted against the lower end of the sealing plate, the rubber sheet blocks the air outlet hole, and the lower end of the sealing plate is flush with the lower end of the rotating plate;
and the pipe fitting is fixedly connected with a gas-collecting hood for collecting air from the air outlet hole, and the second gas path connecting pipe is connected with the corresponding gas-collecting hood.
Preferably, the cross-section of the tube is rectangular.
Preferably, the upper end of the spring is connected to the upper end of the pipe, and the lower end of the spring is connected to the piston.
The invention has the beneficial effects that: the invention provides a double-gas-path multi-separator oxygen production and supply system, which utilizes a vehicle-mounted air compressor to improve the oxygen concentration in a carriage, and simultaneously utilizes a standby air compressor to output oxygen for personal emergency use when a power system fails.
Drawings
FIG. 1 is a schematic view of example 1;
FIG. 2 is a schematic view of example 2;
FIG. 3 is a schematic view of a gas pressure monitoring device and a second control valve;
FIG. 4 is an enlarged view of FIG. 3 at A;
FIG. 5 is a partial sectional view B-B of FIG. 3;
FIG. 6 is a schematic view of FIG. 5 when the rubber sheet blocks the air outlet;
FIG. 7 is a cross-sectional view C-C of FIG. 5;
FIG. 8 is a state view when the piston moves to the lower edge of the sealing plate;
FIG. 9 is an enlarged view of FIG. 8 at D;
fig. 10 is a state diagram when the piston and the sealing plate are disengaged.
In the figure: the device comprises a standby air compressor 1, a first adsorption tower 2, a second adsorption tower 3, a personal use terminal 4, a first air passage connecting pipe 5, a vehicle-mounted air compressor 7, a second air passage connecting pipe 8, a first air passage valve 9, a second air passage valve 10, a pipe fitting 11, a piston 12, a spring 13, a circular hole 15, a rotating plate 16, a groove 17, a rotating shaft 18, an air outlet 19, a sealing plate 20, a rubber sheet 21, an avoiding groove 22, a second rotating shaft 23, a driving gear 24, a one-way bearing 25, a return spring 26, a support 27, a third rotating shaft 28, an amplifying gear 29, a driven gear 30, a crown gear 31, an air collecting hood 33, an oxygen dispersion terminal 34, an air pretreatment device 35, a monitoring system 36 and an air pressure monitoring device 37.
Detailed Description
The invention is explained in further detail below with reference to the figures and the detailed description:
example 1:
referring to fig. 1, a dual gas path multiple separator oxygen supply system, including reserve air compressor machine 1, first adsorption tower 2, second adsorption tower 3, personal use terminal 4 of being connected with the output of first adsorption tower 2, the oxygen diffusion terminal 34 of being connected with the output of second adsorption tower 3, a first gas circuit connecting pipe 5 for communicateing reserve air compressor machine 1 and first adsorption tower 2, vehicle mounted air compressor machine 7, a second gas circuit connecting pipe 8 for communicateing vehicle mounted air compressor machine 7 and first adsorption tower 2, a second gas circuit connecting pipe 8 for communicateing vehicle mounted air compressor machine 7 and second adsorption tower 3, a first gas circuit valve 9 that is located on first gas circuit connecting pipe 5, a second gas circuit valve 10 that is located on second gas circuit connecting pipe 8, an atmospheric pressure monitoring device 37 for controlling opening and closing of first gas circuit valve 9 and second gas circuit valve 10 according to the output atmospheric pressure of vehicle mounted air compressor machine 7.
The second air path connecting pipe 8 is provided with an air pretreatment device 35.
The first adsorption tower 2 and the second adsorption tower 3 are connected with a monitoring system 36. The monitoring system adopts the prior art, can show data such as the flow of first adsorption tower and second adsorption tower.
Principle of embodiment:
when the motor train unit normally operates, the vehicle-mounted air compressor 7 operates, the air pressure output by the vehicle-mounted air compressor 7 is monitored by the air pressure monitoring device 37, when the air pressure is large, the first air path valve 9 is closed, the second air path valve 10 is opened, the air output by the vehicle-mounted air compressor 7 reaches the first adsorption tower 2 and the second adsorption tower 3 through the effects of cooling, filtering and the like of the air pretreatment device 35 (the prior art), the first adsorption tower 2 and the second adsorption tower 3 are used for outputting by the personal use terminal 4 and the oxygen dispersion terminal 34 after nitrogen and oxygen separation, the personal use terminal 4 can adopt forms such as an oxygen mask, the oxygen dispersion terminal 34 can adopt forms such as an air outlet, wherein the oxygen concentration in a carriage can be improved after the oxygen dispersion terminal 34 outputs.
When the air pressure output by the vehicle-mounted air compressor 7 is small, the second air path valve 10 and the vehicle-mounted air compressor 7 are turned off, the first air path valve 9 and the standby air compressor 1 are opened, the standby air compressor 1 can adopt forms such as a storage battery for power supply, air enters the first adsorption tower 2 and is output by the personal use terminal 4 after being separated from nitrogen and oxygen of the first adsorption tower 2.
Set up the oxygen detector in the carriage, when oxygen concentration is higher than a definite value in the carriage, here, when oxygen concentration is higher than 25%, will make and just be in reserve air compressor 1 or vehicle-mounted air compressor 7 stop working in the work, and when oxygen concentration is less than a definite value in the carriage, then open vehicle-mounted air compressor 7, personal use terminal 4 and 34 exportable oxygen of oxygen dispersion terminal, and if vehicle-mounted air compressor 7 output atmospheric pressure is less this moment, then open reserve air compressor 1, personal use terminal 4 exportable oxygen.
In summary, in the present embodiment, when the oxygen concentration in the vehicle cabin is high, neither the personal use terminal 4 nor the oxygen diffusion terminal 34 outputs oxygen; when the oxygen concentration in the carriage is low, if the output air pressure of the vehicle-mounted air compressor 7 is high, the vehicle-mounted air compressor 7 operates, and the personal use terminal 4 and the oxygen dispersion terminal 34 can output oxygen; and if the output air pressure of the vehicle-mounted air compressor 7 is small, the standby air compressor 1 operates, and the personal use terminal 4 can output oxygen for emergency use of passengers.
Example 2:
referring to fig. 2 to 10, a dual gas path multiple separator oxygen generation system, including reserve air compressor machine 1, first adsorption tower 2, second adsorption tower 3, personal use terminal 4 of being connected with the output of first adsorption tower 2, the oxygen diffusion terminal 34 of being connected with the output of second adsorption tower 3, a first gas circuit connecting pipe 5 for communicateing reserve air compressor machine 1 and first adsorption tower 2, vehicle mounted air compressor machine 7, a second gas circuit connecting pipe 8 for communicateing vehicle mounted air compressor machine 7 and first adsorption tower 2, a second gas circuit connecting pipe 8 for communicateing vehicle mounted air compressor machine 7 and second adsorption tower 3, a first gas circuit valve 9 that is located on first gas circuit connecting pipe 5, a second gas circuit valve 10 that is located on second gas circuit connecting pipe 8, an atmospheric pressure monitoring device 37 for controlling opening and closing of first gas circuit valve 9 and second gas circuit valve 10 according to the output atmospheric pressure of vehicle mounted air compressor machine 7.
The number of the second adsorption columns 3 is at least two.
The air pressure monitoring device 37 comprises a pipe fitting 11, the upper end of which is communicated with the vehicle-mounted air compressor 7, a piston 12 which is connected in the pipe fitting 11 in a sliding manner, a spring 13, one end of which is connected to the piston 12, and a tension sensor for measuring the tension of the spring 13;
the other end of the spring 13 is connected to the pipe fitting 11, and the tension sensor is connected with the first air circuit valve 9;
the second gas circuit valves 10 are positioned on the pipe wall of the pipe 11, the second gas circuit valves 10 are uniformly arranged along the direction of the pipe 11, the uppermost second gas circuit valve 10 is simultaneously connected with the first adsorption tower 2 and one of the second adsorption towers 3, and the other second gas circuit valves 10 are respectively connected with other corresponding second adsorption towers 3;
the pipe fitting 11 is provided with a round hole 15 at a position corresponding to the second gas circuit valve 10;
the second air path valve 10 comprises a rotating plate 16 which is rotatably connected in the corresponding round hole 15, and a groove 17 which is positioned on one side of the rotating plate 16 close to the inner part of the pipe fitting 11;
the lower side of the groove 17 is communicated with the lower edge of the rotating plate 16;
the second air path valve 10 further comprises an air outlet 19 positioned at the bottom of the groove 17, a rotating shaft 18 rotatably connected with the inner walls of two opposite sides of the groove 17, a return spring 26 for returning the rotating shaft 18, a sealing plate 20 fixedly connected with the upper end of the rotating shaft 18, a rubber sheet 21 positioned on one side of the sealing plate 20 close to the air outlet 19, a hiding groove 22 positioned on one side of the rotating plate 16 close to the outside of the pipe fitting 11, a second rotating shaft 23 rotatably connected in the hiding groove 22, a driving gear 24 fixedly connected with the second rotating shaft 23, a one-way bearing 25 positioned between the second rotating shaft 23 and the rotating shaft 18, a bracket 27 fixedly connected with the rotating plate 16, a third rotating shaft 28 rotatably connected with the bracket 27, an amplifying gear 29 fixedly connected with the third rotating shaft 28, a driven gear 30 fixedly connected with the third rotating shaft 28, and a crown gear 31 coaxial with the rotating plate 16;
the crown gear 31 is fixedly connected with the pipe fitting 11, the amplifying gear 29 is meshed with the driving gear 24, and the driven gear 30 is meshed with the crown gear 31;
the lower end of the sealing plate 20 inclines towards one side of the interior of the pipe fitting 11, the axis of the rotating shaft 18 is intersected with the axis of the rotating plate 16, the height of the piston 12 is greater than the diameter of the rotating plate 16, and the piston 12 is positioned above the second air path valve 10;
when the lower ends of the piston 12 and the sealing plate 20 are abutted together, the rubber sheet 21 blocks the air outlet hole 19 and the lower end of the sealing plate 20 is flush with the lower end of the rotating plate 16;
and the pipe fitting 11 is fixedly connected with a gas collecting hood 33 for collecting air from the air outlet 19, and the second gas path connecting pipe 8 is connected with the corresponding gas collecting hood 33.
The cross-section of the pipe member 11 is rectangular.
The upper end of the spring is connected with the upper end of the pipe fitting, and the lower end of the spring is connected with the piston.
Principle of embodiment:
for ease of explanation, the description herein will be made with reference to the orientation of the drawings.
The air pressure monitoring device 37 in the system can automatically adjust the quantity of the second air path valves 10 according to the air pressure of the compressed air output by the vehicle-mounted air compressor 7, and can also automatically control the opening of the first air path valves 9, and the principle is as follows:
compressed air output by the vehicle-mounted air compressor 7 enters the upper end of the pipe fitting 11, air cannot go out of the second air path valve 10 under the blocking effect of the piston 12, after air pressure in the pipe fitting 11 rises, the piston 12 can move downwards, the spring 13 can extend, the higher the air pressure is, the farther the downward movement distance of the piston 12 is, and the longer the spring 13 extends.
When the piston 12 moves downwards to the sealing plate 20, the sealing plate 20 rotates downwards, the rotating shaft 18 also rotates, the rotating shaft 18 drives the return spring 26 to twist, but due to the action of the one-way bearing 25, the second rotating shaft 23 cannot rotate, when the piston 12 moves to the lower edge of the sealing plate 20, the rubber sheet 21 is attached to the air outlet hole 19, as shown in fig. 8 and 9, as the piston 12 continues to move downwards, the piston 12 is separated from the sealing plate 20, and the sealing plate 20 returns under the action of the return spring 26, in the process, under the action of the one-way bearing 25, the second rotating shaft 23 and the rotating shaft 18 synchronously rotate, the second rotating shaft 23 drives the driven gear 30 to rotate, and drives the rotating plate 16 to rotate 180 degrees, as shown in fig. 10. (the rotation angle of the rotating plate 16 can be controlled by controlling the rotation range of the sealing plate 20, in order to increase the rotation precision of the rotating plate 16, the rotation precision of the rotating plate 16 can be improved by performing limit control on the rotation range of the sealing plate 20, which is the prior art, and the opening is not performed here), at this time, the air outlet 19 above the piston 12 outputs air, the air passes through the air collecting hood 33 and then is introduced into the first adsorption tower 2 and one of the second adsorption towers 3, and finally oxygen is output, the higher the air pressure is, the more the second air circuit valves 10 are opened, the more the number of the second adsorption towers are operated, (because the larger the air pressure is, the larger the flow is, and at this time, the more the second adsorption towers are required to meet the requirement of oxygen generation amount) the larger the. Here, the first adsorption tower 2 and one of the second adsorption towers 3 are connected to the uppermost second air path valve 10 on the pipe 11, and as the piston 12 moves downward, air exiting the first opened second air path valve 10 enters the first adsorption tower 2 and one of the second adsorption towers.
It needs to be provided that the tensile force that spring 13 received is directly proportional with the extension of spring 13, and when vehicle air compressor 7 was in operation, if the extension of spring 13 was not enough to open first second gas circuit valve 10, that is to say, the tensile force that spring 13 received is less, and at this moment, force transducer sent the signal to reserve air compressor 1 and first gas circuit valve 9, and simultaneously, vehicle air compressor 7 stopped operating, and second gas circuit valve 10 closes, and reserve air compressor 1 operation back, and personal use terminal 4 exports oxygen.
Meanwhile, it is required to provide that each second air path valve 10 only has two states of full opening or full closing, so that each second adsorption tower 3 in operation can be fully utilized.
When the vehicle-mounted air compressor 7 stops operating, the piston 12 moves upwards to the initial position under the action of the spring 13, and the rotating plate 16 rotates 180 degrees again after the piston 12 passes through the opened second air path valve 10.
Claims (7)
1. The utility model provides a many separators of double-gas circuit system oxygen system, a serial communication port, including reserve air compressor machine, first adsorption tower, the second adsorption tower, the individual user terminal who connects with the output of first adsorption tower, the oxygen diffusion terminal who connects with the output of second adsorption tower, a first gas circuit connecting pipe for communicateing reserve air compressor machine and first adsorption tower, vehicle-mounted air compressor machine, a second gas circuit connecting pipe for communicateing vehicle-mounted air compressor machine and first adsorption tower, a second gas circuit connecting pipe for communicateing vehicle-mounted air compressor machine and second adsorption tower, a first gas circuit valve on first gas circuit connecting pipe, a second gas circuit valve on second gas circuit connecting pipe, an atmospheric pressure monitoring devices for controlling first gas circuit valve and second gas circuit valve to open and close according to vehicle-mounted air compressor machine's output atmospheric pressure.
2. The dual gas path multiple separator oxygen supply system according to claim 1, wherein an air pre-treatment device is provided on the second gas path connection pipe.
3. The dual gas circuit multiple separator oxygen generation and supply system of claim 1, wherein a monitoring system is connected to the first adsorption column and the second adsorption column.
4. The dual gas circuit multiple separator oxygen generation system of claim 1, wherein the number of second adsorption columns is at least two.
5. The dual-gas path multi-separator oxygen supply system according to claim 5, wherein the gas pressure monitoring device comprises a pipe member having an upper end communicated with the vehicle-mounted air compressor, a piston slidably connected in the pipe member, a spring having one end connected to the piston, and a tension sensor for measuring tension of the spring;
the other end of the spring is connected to a pipe fitting, and the tension sensor is connected with the first air circuit valve;
the second gas circuit valves are positioned on the pipe wall of the pipe fitting, the second gas circuit valves are uniformly arranged along the direction of the pipe fitting, the uppermost second gas circuit valve is simultaneously connected with the first adsorption tower and one of the second adsorption towers, and the other second gas circuit valves are respectively connected with other corresponding second adsorption towers;
the pipe fitting is provided with a round hole at a position corresponding to the second gas circuit valve;
the second gas circuit valve comprises a rotating plate which is rotatably connected in the corresponding round hole and a groove which is positioned on one side of the rotating plate close to the inner part of the pipe fitting;
the lower side of the groove is communicated with the lower edge of the rotating plate;
the second gas circuit valve also comprises a gas outlet hole positioned at the bottom of the groove, a rotating shaft rotatably connected with the inner walls of two opposite sides of the groove, a reset spring used for resetting the rotating shaft, a sealing plate of which the upper end is fixedly connected with the rotating shaft, a rubber sheet positioned at one side of the sealing plate close to the gas outlet hole, a hiding groove positioned at one side of the rotating plate close to the outer part of the pipe fitting, a second rotating shaft rotatably connected in the hiding groove, a driving gear fixedly connected with the second rotating shaft, a one-way bearing positioned between the second rotating shaft and the rotating shaft, a bracket fixedly connected with the rotating plate, a third rotating shaft rotatably connected with the bracket, an amplifying gear fixedly connected with the third rotating shaft, a driven gear fixedly connected with the third rotating shaft and a crown gear coaxial with the;
the crown gear is fixedly connected with the pipe fitting, the amplifying gear is meshed with the driving gear, and the driven gear is meshed with the crown gear;
the lower end of the sealing plate inclines towards one side of the interior of the pipe fitting, the axis of the rotating shaft is intersected with the axis of the rotating plate, the height of the piston is larger than the diameter of the rotating plate, and the piston is positioned above the second air path valve;
when the piston is abutted against the lower end of the sealing plate, the rubber sheet blocks the air outlet hole, and the lower end of the sealing plate is flush with the lower end of the rotating plate;
and the pipe fitting is fixedly connected with a gas-collecting hood for collecting air from the air outlet hole, and the second gas path connecting pipe is connected with the corresponding gas-collecting hood.
6. The dual gas circuit multiple separator oxygen supply system of claim 6, wherein said tube is rectangular in cross-section.
7. The dual gas circuit multiple separator oxygen supply system of claim 7, wherein the upper end of said spring is connected to the upper end of a tube and the lower end of said spring is connected to the piston.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011486761.4A CN112628111B (en) | 2020-12-16 | 2020-12-16 | Double-gas-path multi-separator oxygen production and supply system |
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| CN202011486761.4A CN112628111B (en) | 2020-12-16 | 2020-12-16 | Double-gas-path multi-separator oxygen production and supply system |
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| CN112628111A true CN112628111A (en) | 2021-04-09 |
| CN112628111B CN112628111B (en) | 2022-07-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113830117A (en) * | 2021-10-29 | 2021-12-24 | 中车株洲电力机车有限公司 | Oxygen supply system and method for cab of railway vehicle |
| CN115215304A (en) * | 2021-04-16 | 2022-10-21 | 无锡市中瑞空分设备有限公司 | Modular nitrogen making machine |
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| CN202139047U (en) * | 2011-08-02 | 2012-02-08 | 李克明 | Dual-system household oxygenerator |
| CN104399163A (en) * | 2014-12-01 | 2015-03-11 | 北京神鹿腾飞医疗科技有限公司 | Safe double-air-source mixed oxygen instrument and oxygen supply method thereof |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070169623A1 (en) * | 2006-01-26 | 2007-07-26 | Oxus Co., Ltd. | Apparatus of oxygen concentration system and method thereof |
| CN200957820Y (en) * | 2007-03-15 | 2007-10-10 | 铁道科学研究院 | Oxygen-supplying system for railway coach |
| CN201882905U (en) * | 2010-11-18 | 2011-06-29 | 李靖 | Railway train-mounted oxygen producing equipment |
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| CN104399163A (en) * | 2014-12-01 | 2015-03-11 | 北京神鹿腾飞医疗科技有限公司 | Safe double-air-source mixed oxygen instrument and oxygen supply method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115215304A (en) * | 2021-04-16 | 2022-10-21 | 无锡市中瑞空分设备有限公司 | Modular nitrogen making machine |
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| CN113830117A (en) * | 2021-10-29 | 2021-12-24 | 中车株洲电力机车有限公司 | Oxygen supply system and method for cab of railway vehicle |
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| CN112628111B (en) | 2022-07-08 |
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