CN106740941B - A kind of positive pressure sub-pressure conversion device and method - Google Patents
A kind of positive pressure sub-pressure conversion device and method Download PDFInfo
- Publication number
- CN106740941B CN106740941B CN201611189811.6A CN201611189811A CN106740941B CN 106740941 B CN106740941 B CN 106740941B CN 201611189811 A CN201611189811 A CN 201611189811A CN 106740941 B CN106740941 B CN 106740941B
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- valve
- solenoid valve
- pipeline
- vacuum
- pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D35/00—Sanitation
- B61D35/005—Toilet facilities
- B61D35/007—Toilet facilities comprising toilet waste receiving, treatment, storage, disposal or removal devices
Abstract
The invention discloses a kind of positive pressure sub-pressure conversion device and methods, including shell, and vacuum generating device is integrated in the shell, is pneumatically isolated valve, pressure switch, vacuum switch, the first solenoid valve and second solenoid valve；First solenoid valve is connected with vacuum generating device, and the end that vacuumizes of vacuum generating device is connected by pipeline I with the working interface on shell, is in series with one on the pipeline I and is pneumatically isolated valve；The second solenoid valve is connected to by pipeline II with pipeline I, and the pipeline II is in parallel with valve is pneumatically isolated；It is equipped with vacuum switch positioned at the pipeline I being pneumatically isolated between valve and vacuum generating device, while this section of pipeline I of connecting line II and pneumatic isolating valve is equipped with pressure switch.
Description
Technical field
The invention discloses a kind of positive pressure sub-pressure conversion device and methods.
Background technique
In EMU in rotatable vacuum feces collecting device, the device for the realization positive pressure negative pressure conversion function installed now,
It is to be realized by existing finished product assembling fittings, required installation space is larger, is not easy to safeguard, and higher cost.
Summary of the invention
In order to solve the technical problems existing in the prior art, the invention discloses a kind of positive pressure sub-pressure conversion devices, originally
Invention is by realizing required function for the integrated of finished product accessory functions.The device installation space is small, easy to maintain, and reduces
The cost of accessory.
The technical solution adopted by the invention is as follows:
A kind of positive pressure sub-pressure conversion device, including shell, be integrated in the shell vacuum generating device, pneumatically every
From valve, pressure switch, vacuum switch, the first solenoid valve and second solenoid valve；First solenoid valve and vacuum generating device
It is connected, the end that vacuumizes of vacuum generating device is connected by pipeline I with the working interface on shell, is connected on the pipeline I
There is one to be pneumatically isolated valve；The second solenoid valve be connected to by pipeline I I with pipeline I, and the pipeline I I with pneumatically
Isolating valve is in parallel；Vacuum switch, while connecting line are equipped with positioned at the pipeline I being pneumatically isolated between valve and vacuum generating device
This section of pipeline I of I I and pneumatic isolating valve is equipped with pressure switch.
Vacuum generating device can realize the generation of negative pressure；Turning for same working interface positive pressure negative pressure can be realized by being pneumatically isolated valve
It changes；Pressure switch can realize the adjusting of device demand positive pressure；Vacuum switch can realize the adjusting of device demand vacuum.
Specific application method is as follows:
First solenoid valve and second solenoid valve are connect with the first gas source, the second gas source respectively；
When system needs to be implemented evacuation cycle, the first solenoid valve conduction is pneumatically isolated valve opening, vacuum generating device
It starts to work, vacuum is generated at working interface, after vacuum degree reaches vacuum switch setting value, the first solenoid valve is closed, knot
Beam evacuation cycle；
When system needs to add positive pressure, second solenoid valve conducting, while it being pneumatically isolated valve closing, compressed air passes through work
Interface enters system, and after pressure reaches pressure switch setting value, second solenoid valve is closed, and terminates pressurized circulation.
Further, the position of the vacuum generating device connecting line I is additionally provided with check valve；So that the second gas source
Gas can only flow outward along pipeline I11-1, and cannot flow in the opposite direction.
Further, it is additionally provided with pressure gauge on this section of pipeline I of connecting line I I and pneumatic isolating valve while described,
Gas pressure can be observed by the way that pressure gauge is arranged.
Further, the vacuum generating device is connected with the aeration opening for being located at housing bottom.
Further, first solenoid valve and second solenoid valve respectively with the first gas source interface for being located at case top
It is connected with the second gas source interface.
Further, the valve that is pneumatically isolated is connected with the pneumatic operated valve air feed interface on housing exterior walls.
Beneficial effects of the present invention are as follows:
Vacuum generating device of the invention can realize the generation of negative pressure；Same working interface positive pressure can be realized by being pneumatically isolated valve
The conversion of negative pressure；Pressure switch can realize the adjusting of device demand positive pressure；Vacuum switch can realize the adjusting of device demand vacuum.
Integral layout of the present invention is reasonable, easy to maintain.System design is reasonable, perfect in shape and function, high reliablity.The present invention has
It economizes on resources, be moved easily, the relatively good feature of reliability maintenance.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is working principle diagram of the present invention；
Fig. 2 is positive pressure sub-pressure conversion device composition main view of the present invention；
Fig. 3 is positive pressure sub-pressure conversion device composition side view of the present invention；
In figure: 1 pressure switch, 2-1 solenoid valve, 2-2 solenoid valve, 3 are pneumatically isolated valve, 4 vacuum switches, and 5 vacuum fill
It sets, 6 first gas source interfaces, 7 second gas source interfaces, 8 working interfaces, 9 pneumatic operated valve air feed interfaces, 10 aeration openings, 11-1 pipeline I,
11-2 pipeline I I, 12 check valves.
Specific embodiment
The present invention is described in detail by 1-3 with reference to the accompanying drawing:
As shown in Figure 1, being the principle of the present invention figure, the core component of positive pressure sub-pressure conversion device includes vacuum generating device
5, valve 3, pressure switch 1, vacuum switch 4, solenoid valve 2-1 and solenoid valve 2-2 are pneumatically isolated；The solenoid valve 2-2 and vacuum
Generating device 5 is connected, and the end that vacuumizes of vacuum generating device 5 is connected by pipeline I 11-1 with the working interface 8 on shell, institute
One, which is in series with, on the pipeline I11-1 stated is pneumatically isolated valve 3；The solenoid valve 2-1 passes through pipeline I I 11-2 and pipeline
I11-1 connection, and the pipeline I I 11-2 is in parallel with valve 3 is pneumatically isolated；Positioned at being pneumatically isolated valve 3 and vacuum generating device
Pipeline I 11-1 between 5 is equipped with vacuum switch 4, while this section of pipeline I of connecting line I I 11-2 and pneumatic isolating valve 3
11-1 is equipped with pressure switch 1.
Vacuum generating device of the invention can realize the generation of negative pressure；Same working interface positive pressure can be realized by being pneumatically isolated valve
It is therefore relatively high relative to existing device integrated level with the normal conversion of negative pressure；Pressure switch can realize device demand positive pressure
Adjusting；Vacuum switch can realize the adjusting of device demand vacuum.
Specific installation diagram is as shown in Figure 2 and Figure 3: including a shell, being equipped with the first gas source at the top of shell and connects
The 6, second gas source interface 7 of mouth；First gas source interface 6 is connected with solenoid valve 2-1；Second gas source interface and solenoid valve 2-2
It is connected；Vacuum generating device 5 is pneumatically isolated valve 3, pressure switch 1, vacuum switch 4, solenoid valve 2-1 and solenoid valve 2-2 and is integrated in
In shell；And be pneumatically isolated valve and be connected with the pneumatic operated valve air feed interface 9 on shell, the exhaust outlet and shell of vacuum generating device 5
On aeration opening 10 be connected.
Specific application method is as follows:
First solenoid valve and second solenoid valve are connect with the first gas source, the second gas source respectively；
When system needs to be implemented evacuation cycle, solenoid valve 2-2 conducting, vacuum generating device 5 starts to work, is working
Vacuum is generated at interface 8, after vacuum degree reaches 4 setting value of vacuum switch, solenoid valve 2-2 is closed, and terminates evacuation cycle.
When system needs to add positive pressure, solenoid valve 2-1 conducting, while it being pneumatically isolated the closing of valve 3, compressed air passes through work
Interface 8 enters system, and after pressure reaches 1 setting value of pressure switch, solenoid valve 2-1 is closed, and terminates pressurized circulation.
Further, the position of the vacuum generating device connecting line I 11-1 is additionally provided with check valve 12, so that the
The gas of two gas sources can only flow outward along pipeline I11-1, and cannot flow in the opposite direction.
Further, it is additionally provided with pressure gauge on this section of pipeline I of connecting line I I and pneumatic isolating valve while described,
Gas pressure can be observed by the way that pressure gauge is arranged.
The present invention is by realizing required function for the integrated of finished product accessory functions.The device installation space is small, maintenance side
Just, and the cost of accessory is reduced.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (4)
1. a kind of positive pressure sub-pressure conversion device, including shell, it is characterised in that: be integrated with vacuum in the shell and fill
It sets, be pneumatically isolated valve, pressure switch, vacuum switch, the first solenoid valve and second solenoid valve；
The second solenoid valve is connected with vacuum generating device, and the end that vacuumizes of vacuum generating device passes through pipeline I and shell
On working interface be connected, be in series with one on the pipeline I and be pneumatically isolated valve；First solenoid valve passes through pipeline II
It is connected to pipeline I, and the pipeline II is in parallel with valve is pneumatically isolated；Positioned at being pneumatically isolated between valve and vacuum generating device
Pipeline I is equipped with vacuum switch, while this section of pipeline I of connecting line II and pneumatic isolating valve is equipped with pressure switch；
The vacuum generating device is connected with the aeration opening for being located at housing bottom；
First solenoid valve and second solenoid valve connect with the first gas source interface and the second gas source for being located at case top respectively
Mouth is connected；
The valve that is pneumatically isolated is connected with the pneumatic operated valve air feed interface on housing exterior walls.
2. positive pressure sub-pressure conversion device as described in claim 1, it is characterised in that: the vacuum generating device connecting line
The position of I is additionally provided with check valve.
3. positive pressure sub-pressure conversion device as described in claim 1, it is characterised in that: connecting line II and pneumatic while described
Pressure gauge is additionally provided on this section of pipeline I of isolating valve.
4. the method for carrying out positive/negative-pressure conversion using any positive pressure sub-pressure conversion device of claim 1-3, feature exist
In:
First solenoid valve and second solenoid valve are connect with the first gas source, the second gas source respectively；
When system needs to be implemented evacuation cycle, second solenoid valve conducting is pneumatically isolated valve opening, and vacuum generating device starts
Work generates vacuum at working interface, and after vacuum degree reaches vacuum switch setting value, second solenoid valve is closed, and terminates to take out
Vacuum cycle；
When system needs to add positive pressure, the first solenoid valve conduction, while it being pneumatically isolated valve closing, compressed air passes through working interface
Into system, after pressure reaches pressure switch setting value, the first solenoid valve is closed, and terminates pressurized circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611189811.6A CN106740941B (en) | 2016-12-21 | 2016-12-21 | A kind of positive pressure sub-pressure conversion device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611189811.6A CN106740941B (en) | 2016-12-21 | 2016-12-21 | A kind of positive pressure sub-pressure conversion device and method |
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| Publication Number | Publication Date |
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| CN106740941A CN106740941A (en) | 2017-05-31 |
| CN106740941B true CN106740941B (en) | 2019-06-07 |
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| CN201611189811.6A Active CN106740941B (en) | 2016-12-21 | 2016-12-21 | A kind of positive pressure sub-pressure conversion device and method |
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| CN112344660A (en) * | 2020-10-28 | 2021-02-09 | 中国电子科技集团公司第五十五研究所 | Automatic change wet process equipment manipulator raffinate drainage recovery unit |
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| FI83797C (en) * | 1988-10-05 | 1991-08-26 | Nesite Oy | AVLOPPSSYSTEM. |
| JP2001317105A (en) * | 2000-05-08 | 2001-11-16 | Royal Electric Co Ltd | Excretion device provided with waste ejecting mechanism |
| CN201214423Y (en) * | 2008-05-16 | 2009-04-01 | 南车四方机车车辆股份有限公司 | Rail vehicle dirt collection system |
| DE202013008298U1 (en) * | 2013-09-20 | 2014-12-22 | Evac Gmbh | Vacuum toilet with alternating squeeze valve closing |
| CN105270425B (en) * | 2015-11-20 | 2018-07-06 | 山东中车华腾环保科技有限公司 | Intermediate mechanical case vacuumizes and pressue device and its application method |
| CN206336281U (en) * | 2016-12-21 | 2017-07-18 | 山东中车华腾环保科技有限公司 | A kind of malleation sub-pressure conversion device |
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Effective date of registration: 20230223 Address after: 215557 Zhengwen Road, Yushan High-tech Industrial Park, Changshu, Suzhou, Jiangsu Province Patentee after: Jiangsu CRRC Huateng Environmental Protection Technology Co.,Ltd. Address before: 250101 No. 3666 Century Avenue, Jinan High-tech Zone, Shandong Province Patentee before: SHANDONG CRRC HUATENG ENVIRONMENT Co.,Ltd. |