CN112441043B - Liquid supply and drainage system for railway vehicle - Google Patents
Liquid supply and drainage system for railway vehicle Download PDFInfo
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- CN112441043B CN112441043B CN201910806427.3A CN201910806427A CN112441043B CN 112441043 B CN112441043 B CN 112441043B CN 201910806427 A CN201910806427 A CN 201910806427A CN 112441043 B CN112441043 B CN 112441043B
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- 239000007788 liquid Substances 0.000 title claims abstract description 451
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 508
- 238000011010 flushing procedure Methods 0.000 claims abstract description 245
- 238000002347 injection Methods 0.000 claims description 145
- 239000007924 injection Substances 0.000 claims description 145
- 239000012530 fluid Substances 0.000 claims description 46
- 238000004891 communication Methods 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 10
- 208000019206 urinary tract infection Diseases 0.000 claims description 8
- 210000001635 urinary tract Anatomy 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 239000002917 insecticide Substances 0.000 claims description 3
- 230000002528 anti-freeze Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 238000009428 plumbing Methods 0.000 claims 20
- 239000003320 cold-resistant material Substances 0.000 claims 1
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 241000238631 Hexapoda Species 0.000 description 3
- 241000607479 Yersinia pestis Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D35/00—Sanitation
- B61D35/002—Washing facilities
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Sanitary Device For Flush Toilet (AREA)
Abstract
The embodiment of the application provides a rail vehicle supplies drainage system, includes: the flushing liquid pipeline system comprises a flushing liquid tank and a liquid supply pipeline, and the liquid supply pipeline is communicated with the flushing liquid tank; the clean water pipeline system comprises a clean water tank and a water supply pipeline, and the water supply pipeline is communicated with the clean water tank; the gas supply system is respectively communicated with the top of the flushing liquid tank and the top of the clear water tank and is used for supplying high-pressure gas for supplying liquid to the flushing liquid tank and supplying high-pressure gas for supplying water to the clear water tank; the high-pressure gas for liquid supply is used for pressing flushing liquid in the flushing liquid tank into the liquid supply pipeline, the flushing liquid is used for flushing a toilet stool of the railway vehicle, and the high-pressure gas for water supply is used for pressing clean water in the clean water tank into the water supply pipeline. The technical problem that the traditional rail vehicle liquid supply and discharge system cannot meet the individual requirements of the appliances of the rail vehicle is solved.
Description
Technical Field
The application relates to the technical field of railway vehicles, in particular to a railway vehicle liquid supply and drainage system.
Background
The traditional rail vehicle water supply and drainage system supplies water to a water faucet of a washing room of a rail vehicle, a water faucet of a toilet, a toilet stool and the like. Water is a liquid, and the rail vehicle water supply and drainage system is a rail vehicle water supply and drainage system in a broad sense.
Therefore, the traditional rail vehicle liquid feeding and discharging system cannot meet the individual requirements of the rail vehicle appliances, and is a technical problem which needs to be solved urgently by the technical personnel in the field.
The above information disclosed in the background section is only for enhancement of understanding of the background of the present application and therefore it may contain information that does not form the prior art that is known to those of ordinary skill in the art.
Disclosure of Invention
The embodiment of the application provides a rail vehicle gives drainage system to solve traditional rail vehicle and give drainage system and can't satisfy the technical problem of rail vehicle's utensil individualized demand.
The embodiment of the application provides a rail vehicle gives drainage system, includes:
the flushing liquid pipeline system comprises a flushing liquid tank and a liquid supply pipeline, and the liquid supply pipeline is communicated with the flushing liquid tank;
the clean water pipeline system comprises a clean water tank and a water supply pipeline, and the water supply pipeline is communicated with the clean water tank;
the gas supply system is respectively communicated with the top of the flushing liquid tank and the top of the clean water tank and is used for supplying high-pressure gas for liquid supply to the flushing liquid tank and supplying high-pressure gas for water supply to the clean water tank;
the high-pressure gas for liquid supply is used for pressing flushing liquid in the flushing liquid tank into the liquid supply pipeline, the flushing liquid is used for flushing a toilet stool of the railway vehicle, and the high-pressure gas for water supply is used for pressing clean water in the clean water tank into the water supply pipeline.
Due to the adoption of the technical scheme, the embodiment of the application has the following technical effects:
the flushing liquid tank is matched with the liquid supply pipeline and the air supply system and is used for providing flushing liquid for flushing a toilet stool for the toilet stool of the railway vehicle; the clean water tank, the water supply pipeline and the air supply system are matched to provide clean water for water using appliances of the railway vehicle. Therefore, the rail vehicle liquid supply and discharge system can meet individual requirements of the toilet stool on flushing liquid, such as insect killing, disinfection and the like, and can meet the water using requirements of water using appliances.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic view of a water supply under a vehicle by wind pressure from a water tank;
fig. 2 is a schematic view of a rail vehicle liquid supply and drainage system according to an embodiment of the application.
Description of reference numerals:
in the background art:
11 cold water pipe, 12 floor, 13 water injection pipe, 14 total air pipe, 21 three-way valve, 22 five-way valve,
23 reservoir, 24 check valve;
in the embodiment of the application:
110 a clean water tank for storing clean water and a clean water tank for storing clean water,
120 water injection pipeline, 121 water injection pressure switch, 122 water injection pipeline vacuum release valve,
123 a water-filling check valve for water,
130 water feeding pipe, 131 water feeding three-way reversing valve,
140 clear water overflow pipelines, 141 clear water overflow pipelines electromagnetic valves,
150 clear water pressure relief pipeline, 151 clear water pressure relief pipeline pressure relief valve,
152 clean water pressure relief pipeline vacuum release valve,
160 water supply lines, 161 water supply lines manual shut-off valves,
170 drain, 171 automatic drain valve, 172 manual drain valve,
210 air supply main line, 210-2 flushing liquid tank air supply branch, 211-2 flushing liquid tank air supply solenoid valve,
211-4 flushing liquid tank air supply one-way valve, 212 pneumatic stop valve, 213 pressure regulating valve, 214 filter,
310 of the flushing liquid tank, and a flushing liquid tank,
320 liquid injection pipeline, 321 liquid injection pressure switch, 323 liquid injection check valve,
330 liquid feeding pipe, 331 liquid feeding three-way reversing valve,
340 flushing liquid overflow line, 341 flushing liquid overflow line solenoid valve,
350 flushing fluid pressure relief line, 351 flushing fluid pressure relief line pressure relief valve,
a 360 liquid supply pipeline, a 361 liquid supply pipeline manual stop valve,
371 main drain pipe, 372 branch drain pipe, 372-1 tail pipe of drain pipe, 373 manual drain valve,
380 the pipe is evacuated.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Example one
Fig. 2 is a schematic view of a rail vehicle liquid supply and drainage system according to an embodiment of the application.
As shown in fig. 2, the rail vehicle liquid feeding and discharging system of the embodiment of the present application includes:
a flushing liquid piping system comprising a flushing liquid tank 310 and a liquid supply piping 360, the liquid supply piping 360 being in communication with the flushing liquid tank 310;
a clean water pipeline system, the clean water pipeline system comprising a clean water tank 110 and a water supply pipeline 160, the water supply pipeline 160 being communicated with the clean water tank 110;
the gas supply system is respectively communicated with the top of the flushing liquid tank and the top of the clear water tank, and is used for supplying high-pressure gas for liquid supply to the flushing liquid tank and supplying high-pressure gas for water supply to the clear water tank;
the high-pressure gas for liquid supply is used for pressing flushing liquid in the flushing liquid tank into the liquid supply pipeline, the flushing liquid is used for flushing a toilet stool of the railway vehicle, and the high-pressure gas for water supply is used for pressing clean water in the clean water tank into the water supply pipeline.
In the rail vehicle liquid supply and drainage system, the flushing liquid tank, the liquid supply pipeline and the air supply system are matched to provide flushing liquid for flushing a toilet stool for a toilet stool of a rail vehicle; the clean water tank, the water supply pipeline and the air supply system are matched to provide clean water for water using appliances of the railway vehicle. Therefore, the rail vehicle liquid supply and discharge system can meet individual requirements of the toilet stool on flushing liquid, such as insect killing, disinfection and the like, and can meet the water using requirements of water using appliances.
In operation, as shown in FIG. 2, the flush tank 310 and the clean water tank 110 are located within the rail vehicle.
The following description will be made with respect to the first part flushing liquid piping system, the second part clear water piping system, and the third part air supply system, respectively.
A first part: and a flushing liquid pipeline system.
In implementation, as shown in fig. 2, the flushing liquid pipeline system further includes a liquid injection pipeline 320, the liquid injection pipeline 320 is communicated with the flushing liquid tank 310 and is provided with a liquid injection pressure switch 321, and the position where the liquid injection pipeline is communicated with the flushing liquid tank is at the lower part of the side wall of the flushing liquid tank;
the gas supply system is provided with a flushing liquid tank gas supply electromagnetic valve 211-2, and the flushing liquid tank gas supply electromagnetic valve 211-2 is electrically connected with the liquid injection pressure switch 321; the flushing liquid tank air supply electromagnetic valve 211-2 is controlled by the liquid injection pressure switch 321, and when the liquid injection pressure in the liquid injection pipeline reaches a first preset value, the liquid injection pressure switch 321 is powered off to close the flushing liquid tank air supply electromagnetic valve 211-2 so as to prevent flushing liquid from entering the air supply system;
the liquid injection pipeline 320 is used for injecting flushing liquid into the flushing liquid tank, and the gas supply system is used for supplying high-pressure gas for liquid supply to the flushing liquid tank 310.
The flushing liquid case air feed solenoid valve is controlled by annotate liquid pressure switch, like this when annotating liquid pressure in the liquid pipeline and reaching first default, it makes to annotate the outage of liquid pressure switch flushing liquid case air feed solenoid valve closes, closes air supply system promptly to prevent that there is the flush fluid to get into air supply system. Meanwhile, the position where the liquid injection pipeline is communicated with the flushing liquid tank is arranged at the lower part of the side wall of the flushing liquid tank, so that the space of the side wall of the flushing liquid tank is fully utilized, and the space of the railway vehicle is reasonably utilized. The wind pressure water supply mode of the under-vehicle water tank in the background technology has many functions of the five-way valve, so that the starting and stopping times are many, and the five-way valve is easy to damage. The rail vehicle of this application embodiment gives flowing back system no longer adopts the five-way valve that the function is complicated, but adopts notes liquid pressure switch and flushing fluid case air feed solenoid valve to cooperate, and the mode of gas supply or stopping the gas supply of annotating the liquid pressure control gas supply system in the liquid pipeline realizes the control to the gas supply. Therefore, the single parts required by the rail vehicle liquid supply and drainage system are simple in function, the number of starting and stopping of the single parts is small, and the probability of damage of the single parts is low.
In practice, the rinse solution is a liquid containing an antifreeze and an insecticide.
The flushing liquid is a liquid containing an antifreezing agent and an insecticide, and can kill insects and prevent pests while flushing a toilet stool of the railway vehicle by the flushing liquid for cleaning. The rail vehicle is suitable for running environments with more pests, and guarantees are provided.
The following features are also provided with respect to the liquid filling line.
In implementation, as shown in fig. 2, the liquid injection pipeline is provided with a liquid injection check valve 323, and the liquid injection check valve 323 is arranged between the liquid injection pressure switch 321 and the flushing liquid tank;
the liquid injection check valve 323 is used for preventing flushing liquid in the liquid injection pipeline from flowing backwards.
The existence of notes liquid check valve for the flush fluid in the notes liquid pipeline can only flow to the flush fluid case from annotating the liquid pipeline, and can not the refluence.
In practice, as shown in fig. 2, the flushing liquid pipeline system further comprises a liquid feeding pipeline, and the following characteristics are provided about the liquid feeding pipeline.
As shown in fig. 2, the upper liquid line includes:
the two upper liquid pipes 330 are used for being arranged on two sides of the railway vehicle and connected with external liquid injection equipment;
the two liquid feeding pipes 330 are connected with the liquid injection pipeline 320 through the liquid feeding three-way reversing valve 331; after one of the upper liquid pipes 330 is connected to an external liquid injection device, when the hydraulic pressure of the flushing liquid at the upper liquid pipe reaches a preset value, the pressurized flushing liquid pushes the valve core of the upper liquid pipe against the other end of the upper liquid pipe, so as to prevent the flushing liquid from flowing out of the other upper liquid pipe.
The two liquid feeding pipes are arranged on two sides of the railway vehicle and can feed liquid from any side of the railway vehicle; when liquid is fed from any liquid feeding pipe, when the hydraulic pressure of the flushing liquid at the position of the three-way liquid feeding reversing valve reaches a preset value (such as more than or equal to 0.05 MPa), the flushing liquid with pressure pushes the valve core of the three-way liquid feeding reversing valve to the other end so as to prevent the flushing liquid from flowing out of the other liquid feeding pipe.
In operation, as shown in fig. 2, the rinse liquid line system further includes a rinse liquid overflow line 340 having the following features.
As shown in fig. 2, the position where the flushing liquid overflow pipeline 340 is communicated with the flushing liquid tank 310 is located at the upper part of the side wall of the flushing liquid tank;
the flushing liquid overflow pipeline 340 is provided with a flushing liquid overflow pipeline electromagnetic valve 341, and the flushing liquid overflow pipeline electromagnetic valve 341 is electrically connected with the liquid injection pressure switch 321; the flushing liquid overflow pipeline electromagnetic valve 341 is controlled by the liquid injection pressure switch 321, and when the liquid injection pressure in the liquid injection pipeline reaches a first preset value, the liquid injection pressure switch 321 is powered off to open the flushing liquid overflow pipeline electromagnetic valve 341 so as to communicate with the flushing liquid overflow pipeline during liquid injection.
The flushing fluid overflow pipeline electromagnetic valve and the flushing fluid tank air supply electromagnetic valve are controlled by the liquid injection pressure switch, when the liquid injection pressure in the flushing fluid pipeline reaches a first preset value, the liquid injection pressure switch is powered off to enable the flushing fluid tank air supply electromagnetic valve to be closed, the flushing fluid overflow pipeline electromagnetic valve is opened, namely, the air supply system is closed, and the flushing fluid overflow pipeline is communicated. When the flushing liquid in the flushing liquid tank reaches the height of the flushing liquid overflow pipeline and the flushing liquid tank, the flushing liquid overflows from the flushing liquid overflow pipeline. The flushing liquid overflow pipeline is only used as a way for overflowing the flushing liquid from the flushing liquid overflow pipeline when the flushing liquid is injected too much in the liquid injection process.
In operation, as shown in fig. 2, the irrigation fluid line system further comprises an irrigation fluid relief line 350 having the following features.
As shown in fig. 2, the flushing liquid pressure relief pipeline 350 is communicated with the flushing liquid tank 310 and the communication position is located at the upper part of the side wall of the flushing liquid tank;
the flushing liquid pressure relief pipeline 350 is provided with a flushing liquid pressure relief pipeline pressure relief valve 351;
the flushing liquid pressure relief pipeline pressure relief valve 351 is used for being opened when the hydraulic pressure in the flushing liquid pressure relief pipeline reaches a preset value so as to be communicated with the flushing liquid pressure relief pipeline.
Flush fluid pressure release pipeline pressure relief valve opens when reaching the default as a safeguard measure in the flush fluid pressure relief pipeline, is linked together with the external world, and flush fluid pressure relief pipeline pressure relief valve is used for annotating liquid and not annotating the liquid stage promptly, and when the flush fluid of flush fluid incasement reaches the height of flush fluid pressure relief pipeline and flush fluid case intercommunication, the flush fluid spills over from flush fluid pressure relief pipeline. The flushing liquid pressure relief pipeline is used as a way for overflowing the flushing liquid from the flushing liquid pressure relief pipeline when the flushing liquid is injected and not injected.
In operation, as shown in fig. 2, the rinse solution overflow line 340 and the rinse solution drain line 350 are in communication with the rinse solution tank 310 at the same location.
Thus, the openings on the flushing liquid tank can be reduced, and the strength and the pressure bearing capacity of the flushing liquid tank are maintained.
In implementation, as shown in fig. 2, the position where the liquid supply pipeline 360 is communicated with the flushing liquid tank 310 is located at the lower part of the side wall of the flushing liquid tank;
the liquid supply pipeline 360 is provided with a liquid supply pipeline manual stop valve 361;
the liquid supply pipeline 360 is used for being connected with a toilet stool of the railway vehicle, and the manual stop valve 361 of the liquid supply pipeline is used for adjusting the liquid supply pipeline.
The existence of the manual stop valve of the liquid supply pipeline can be manually adjusted according to actual conditions.
In practice, as shown in fig. 2, the flushing liquid pipeline system further comprises a drainage pipeline;
the liquid discharge pipeline comprises a main liquid discharge pipe 371 and two branch liquid discharge pipes 372, wherein one end of the main liquid discharge pipe 371 is communicated with the flushing liquid tank 310, the communicated position is positioned at the lower part of the side wall of the flushing liquid tank, the two branch liquid discharge pipes 372 are arranged in parallel and are respectively communicated with the other end of the main liquid discharge pipe 371, and each branch liquid discharge pipe 372 is provided with a manual liquid discharge valve 373;
the two branch drain pipes are arranged on two sides of the railway vehicle, and the manual drain valve is used for emptying the flushing liquid of the flushing liquid tank through manual operation.
The drainage line and the manual drain valve are arranged to protect the flushing tank. And under the condition that the flushing liquid in the flushing liquid tank needs to be emptied, manually opening the manual liquid discharge valve to empty the flushing liquid in the flushing liquid tank. In order to prevent the environment from being polluted by the washing liquid, the washing liquid needs to be recovered. Therefore, only the manual drain valve needs to be provided, and when the rinse liquid can be recovered, the manual drain valve is manually opened to drain the rinse liquid in the rinse liquid tank. The two branch drain pipes are arranged on two sides of the railway vehicle, and when any one of the two sides of the railway vehicle is suitable for draining, the branch drain pipe and the manual drain valve on the side are used for draining.
In practice, as shown in fig. 2, the liquid injection pipeline, the liquid supply pipeline and the liquid discharge pipeline are communicated with the flushing liquid tank at the same position.
Thus, the openings on the flushing liquid tank can be reduced, and the strength and the pressure bearing capacity of the flushing liquid tank are maintained.
In implementation, as shown in fig. 2, the tail pipe of the flushing fluid overflow pipeline is reused as the tail pipe of the flushing fluid pressure relief pipeline; flushing liquid in the flushing liquid overflow pipeline and the flushing liquid pressure relief pipeline flows through a tail pipe of the flushing liquid overflow pipeline;
the tail pipe of the flushing liquid overflow pipeline is a section of the flushing liquid overflow pipeline away from the flushing liquid tank along the length direction of the flushing liquid overflow pipeline.
Therefore, the number of pipelines in the rail vehicle liquid supply and drainage system can be reduced, and the structure is simplified.
In operation, as shown in fig. 2, the rinse line system further includes an evacuation pipe 380;
the two ends of the emptying pipe 380 are respectively communicated with the tail pipes 372-1 of the two branch liquid discharge pipes, and the middle part of the emptying pipe is communicated with the tail pipe of the flushing liquid overflow pipeline, so that flushing liquid in the tail pipe of the flushing liquid overflow pipeline is emptied through the emptying pipe and the tail pipes of the branch liquid discharge pipes;
wherein the tail pipe of the branch drain pipe is a section from the manual drain valve to the open end of the branch drain pipe, and the open end of the branch drain pipe is used for supplying the flushing liquid to the external flushing liquid collecting device.
Like this, the flush fluid in flush fluid overflow pipeline and the flush fluid pressure release pipeline can all flow through the tail pipe of flush fluid overflow pipeline, flows through evacuation pipe and two fluid-discharge tubes, if placed flush fluid collection device under one fluid-discharge tube this moment, just can the furthest collect the flush fluid, reduces the influence to the environment.
A second part: clear water pipeline system.
In implementation, as shown in fig. 2, the clean water pipeline system further includes a water injection pipeline 120, the water injection pipeline 120 is communicated with the clean water tank 110, and the water injection pipeline is provided with a water injection pressure switch 121;
the gas supply system is provided with a clear water tank gas supply electromagnetic valve 211-1, and the clear water tank gas supply electromagnetic valve 211-1 is electrically connected with the water injection pressure switch 121; the clean water tank air supply electromagnetic valve 211-1 is controlled by the water injection pressure switch 121, and when the water injection pressure in the water injection pipeline 120 reaches a first preset value, the water injection pressure switch 121 is powered off to close the clean water tank air supply electromagnetic valve 211-1 so as to prevent clean water from entering the air supply system;
the water injection pipeline 120 is used for injecting clean water into the clean water tank, and the gas supply system is used for providing high-pressure gas for water supply for the clean water tank 110; when the rail vehicle is powered off, the air supply electromagnetic valve of the clean water tank is closed to prevent clean water from entering the air supply system.
The clear water tank air supply solenoid valve is controlled by the water injection pressure switch, so when the water injection pressure in the water injection pipeline reaches a first preset value, the water injection pressure switch is powered off to enable the clear water tank air supply solenoid valve to be closed, namely, the air supply system is closed, so that clear water is prevented from entering the air supply system. In the water supply mode of the water tank under the vehicle by the wind pressure in the background technology, the five-way valve has a plurality of functions, so that the starting and stopping times are many, and the five-way valve is easy to damage. The rail vehicle of this application embodiment gives flowing back system no longer adopts the five-way valve that the function is complicated, but adopts water injection pressure switch and clear water tank air feed solenoid valve to cooperate, and the mode of air feed or stopping the air feed through the water injection pressure control air supply system in the water injection pipeline realizes the control to the air feed. Therefore, the single parts required by the rail vehicle liquid supply and drainage system are simple in function, the number of starting and stopping of the single parts is small, and the probability of damage of the single parts is low.
The following features are also provided with respect to the water injection line.
In operation, as shown in fig. 2, the water injection line 120 is communicated with the clean water tank 110 at the top of the clean water tank;
the water injection pipeline is further provided with a water injection pipeline vacuum release valve 122, and the water injection pipeline vacuum release valve 122 is located at the top of the clean water tank and between the water injection pressure switch 121 and the clean water tank 110;
the water injection line vacuum release valve 122 is used for opening when negative pressure is generated in the clean water tank or vacuum is gradually increased, so that the vacuum is broken, and clean water in the clean water tank can be emptied.
The water injection pipeline is communicated with the clear water tank at the top of the clear water tank, clear water enters the clear water tank by virtue of the pressure and gravity of water injection, the requirement on the pressure of water injection is low, and the energy is saved; the water injection pipeline vacuum release valve is used as a protective measure to prevent the situation that the clear water tank is crushed due to negative pressure or too high vacuum generated in the clear water tank, and clear water in the clear water tank can be emptied.
In practice, as shown in fig. 2, the water injection line is further provided with a water injection check valve 123, and the water injection check valve 123 is arranged between the water injection pressure switch 121 and the water injection line vacuum release valve 122;
wherein, the water injection check valve 123 is used for preventing the clean water in the water injection pipeline from flowing backwards.
The existence of the water injection check valve enables clear water in the water injection pipeline to flow to the clear water tank only from the water injection pipeline without flowing backwards.
In practice, as shown in fig. 2, the clean water line system further comprises a water supply line, which has the following characteristics with respect to the water supply line.
As shown in fig. 2, the water supply line includes:
the two water feeding pipes 130 are arranged on two sides of the railway vehicle and connected with external water injection equipment;
the two water feeding pipes 130 are connected with the water injection pipeline 120 through the water feeding three-way reversing valve 131; the three-way water-feeding reversing valve 131 is used for pushing a valve core of the three-way water-feeding reversing valve to the other end by using pressure-bearing clean water when the water pressure at the three-way water-feeding reversing valve reaches a preset value after one of the three water-feeding pipes 130 is connected with an external water injection device, so as to prevent the clean water from flowing out of the other water-feeding pipe.
The two water feeding pipes are arranged on two sides of the railway vehicle and can be used for injecting water from any side of the railway vehicle; when water is fed from any water feeding pipe and the water injection pressure in the water feeding pipe reaches a preset value (such as more than or equal to 0.05 MPa), the valve core of the water feeding three-way reversing valve is pushed to the other end by clean water with pressure so as to prevent the clean water from flowing out of the other water feeding pipe.
In practice, as shown in fig. 2, the fresh water pipeline system further comprises a fresh water overflow pipeline 140, which has the following features.
As shown in fig. 2, the clean water overflow pipeline 140 is connected to the clean water tank 110 and is located at the upper part of the sidewall of the clean water tank;
the clean water overflow pipeline 140 is provided with a clean water overflow pipeline electromagnetic valve 141, and the clean water overflow pipeline electromagnetic valve 141 is electrically connected with the water injection pressure switch 121; the clear water overflow pipeline electromagnetic valve 141 is controlled by the water injection pressure switch 121, and when the water injection pressure in the water injection pipeline reaches a first preset value, the water injection pressure switch 121 is powered off to open the clear water overflow pipeline electromagnetic valve 141 so as to communicate with the clear water overflow pipeline during water injection.
The clear water overflow pipeline electromagnetic valve and the clear water tank air supply electromagnetic valve are both controlled by the water injection pressure switch, when the water injection pressure in the water injection pipeline reaches a first preset value, the water injection pressure switch is powered off to close the clear water tank air supply electromagnetic valve, the clear water overflow pipeline electromagnetic valve is opened, namely the air supply system is closed, and the clear water overflow pipeline is communicated; when the clear water in the clear water tank reaches the height of the communication between the clear water overflow pipeline and the clear water tank, the clear water overflows from the clear water overflow pipeline. The clean water overflow pipeline is only used as a way for overflowing clean water from the clean water overflow pipeline when water is injected too much in the water injection process.
In practice, as shown in fig. 2, the clean water pipeline system further includes a clean water pressure relief pipeline 150, which has the following features.
As shown in fig. 2, the clean water pressure relief pipeline 150 is communicated with the clean water tank 110 and is located at the upper part of the side wall of the clean water tank;
the clean water pressure relief pipeline 150 is provided with a clean water pressure relief pipeline pressure relief valve 151;
the pressure relief valve 151 of the clean water pressure relief pipeline is used for being opened when the water pressure in the clean water pressure relief pipeline reaches a preset value so as to be communicated with the clean water pressure relief pipeline.
The pressure release valve of the clear water pressure release pipeline is used as a protection measure, is opened when the water pressure in the clear water pressure release pipeline reaches a preset value and is communicated with the outside, namely, the pressure release valve of the clear water pressure release pipeline is used for enabling clear water to overflow from the clear water pressure release pipeline when the clear water in the clear water tank reaches the height communicated with the clear water tank in the water injection and non-water injection stages. The clear water pressure relief pipeline is used as a way for overflowing clear water from the clear water pressure relief pipeline when the clear water in the clear water tank is too much in the water injection and non-water injection stages.
In implementation, as shown in fig. 2, the clean water pressure relief pipeline 150 is further provided with a clean water pressure relief pipeline vacuum release valve 152; the clean water pressure relief pipeline pressure relief valve 151 is located between the clean water pressure relief pipeline vacuum relief valve 152 and the clean water tank 110;
the vacuum release valve 152 of the clean water pressure relief pipeline is opened when negative pressure is generated in the clean water pressure relief pipeline or vacuum is gradually increased, so as to break vacuum and enable water in the clean water pressure relief pipeline to be emptied.
Therefore, when the pressure release valve of the clean water pressure relief pipeline is opened and communicated with the outside, clean water overflows from the clean water pressure relief pipeline, and at the moment, if negative pressure or vacuum is generated in the clean water pressure relief pipeline and gradually rises, the vacuum release valve of the clean water pressure relief pipeline is opened so as to destroy the vacuum and enable water energy in the clean water pressure relief pipeline to be emptied.
In operation, as shown in fig. 2, the clean water overflow pipeline 140 and the clean water pressure relief pipeline 150 are connected to the clean water tank 110 at the same position.
Therefore, the openings on the clean water tank can be reduced, and the strength and the pressure bearing capacity of the clean water tank are kept.
In practice, as shown in fig. 2, the position where the water supply line 160 communicates with the clean water tank 110 is located at the lower part of the side wall of the clean water tank;
the water supply line 160 is provided with a water supply line manual cut-off valve 161;
wherein the water supply line 160 is adapted to be connected to a water using appliance of the railway vehicle, and the water supply line manual cut-off valve 161 is adapted to regulate the water supply line.
The existence of the manual stop valve of the water supply pipeline can be manually adjusted according to actual conditions.
In practice, as shown in fig. 2, the clean water pipeline system further includes a drainage pipeline;
the drainage pipeline comprises two drainage pipes 170 which are arranged in parallel, and the two drainage pipes 170 are respectively provided with an automatic drainage valve 171 and a manual drainage valve 172;
the automatic drain valve 171 is opened when the temperature of water in the clean water tank reaches a preset temperature, so as to drain the clean water tank; the manual drain valve 172 is used to be manually operated to drain the clean water tank of water.
The drainage pipeline, the automatic drain valve and the manual drain valve are arranged to protect the clear water tank and prevent the clear water tank from being burst due to icing of clear water. The automatic drain valve can be opened when the temperature of water in the clear water tank reaches a preset temperature so as to empty the water in the clear water tank; when the automatic drain valve can not work or under the condition that clear water in the clear water tank needs to be drained, the manual drain valve is manually opened to drain the clear water in the clear water tank.
In operation, as shown in FIG. 2, the water supply line 160 and the water discharge line are in communication with the clean water tank 110 at the same location.
Therefore, the openings on the clean water tank can be reduced, and the strength and the pressure bearing capacity of the clean water tank are kept.
In implementation, as shown in fig. 2, the tail pipe of the clean water overflow pipeline is reused as the tail pipe of the clean water pressure relief pipeline and the tail pipe of the drainage pipeline; clear water in the clear water overflow pipeline, the clear water pressure relief pipeline and the drainage pipeline flows through a tail pipe of the clear water overflow pipeline;
the tail pipe of the clean water overflow pipeline is a section of the clean water overflow pipeline which is far away from the clean water tank along the length direction of the clean water overflow pipeline.
Therefore, the number of pipelines in the rail vehicle liquid supply and drainage system can be reduced, and the structure is simplified.
In practice, the water supply line is wrapped with a heat tracing wire and a cold-proof material.
The heat tracing lines and the cold-proof material can protect the water supply pipeline and prevent the water supply pipeline from being frost cracked.
And a third part: an air supply system.
In implementation, as shown in fig. 2, the gas supply system includes a gas supply main line 210 and a flushing liquid tank gas supply branch line 210-2, the flushing liquid tank gas supply branch line 210-2 is communicated with the gas supply main line 210, and the flushing liquid tank gas supply electromagnetic valve 211-2 is arranged in the flushing liquid tank gas supply branch line 210-2;
the air supply main line is also provided with a pneumatic stop valve 212, and the pneumatic stop valve 212 is arranged between an external air source and a communication position of the flushing liquid tank air supply branch line 210-2 and the air supply main line 210;
wherein the pneumatic stop valve 212 is used for isolating the total wind of the railway vehicle from the air supply system in the liquid supply and drainage system.
The pneumatic stop valve isolates the total wind of the railway vehicle from the gas supply system in the liquid supply and drainage system, and divides the total wind and the gas supply system of the railway vehicle into two parts, thereby providing conditions for the independent control of supplying high-pressure gas for liquid to the gas supply system.
In implementation, as shown in fig. 2, the gas supply system further comprises a clear water tank gas supply branch, the clear water tank gas supply branch is communicated with the gas supply main line, and the clear water tank gas supply electromagnetic valve is arranged in the clear water tank gas supply branch.
In implementation, as shown in fig. 2, the flushing liquid tank air supply branch 210-2 is further provided with a flushing liquid tank air supply one-way valve 211-4, and the flushing liquid tank air supply one-way valve 211-4 is arranged between the flushing liquid tank air supply electromagnetic valve 211-2 and the flushing liquid tank.
The gas supply one-way valve of the flushing liquid tank ensures the one-way flow of the high-pressure gas for liquid supply in the gas supply branch of the flushing liquid tank.
In implementation, as shown in fig. 2, the air supply main line is further provided with a pressure regulating valve 213, and the pressure regulating valve 213 is disposed between the pneumatic stop valve 212 and the communication position between the flushing tank air supply branch 210-2 and the air supply main line 210;
the pressure regulating valve 213 is configured to regulate the total wind of the rail vehicle to provide high-pressure gas for liquid supply to the flushing liquid tank and high-pressure gas for water supply to the clear water tank, the pressure of the high-pressure gas for liquid supply depends on the requirement of the liquid outlet amount of the toilet stool, and the pressure of the high-pressure gas for water supply depends on the requirement of the water outlet amount of the water consuming device of the rail vehicle.
The pressure regulating valve regulates the total wind of the railway vehicle, provides high-pressure gas for supplying liquid for the flushing liquid tank and provides high-pressure gas for supplying water for the clear water tank.
In an implementation, the pressure of the high-pressure gas for liquid supply satisfies the following formula:
Pliquid 1＝QLiquid for treating urinary tract infection 2·sLiquid for treating urinary tract infection·LLiquid for treating urinary tract infection·ρLiquid for treating urinary tract infection·g
Wherein, PLiquid 1Providing the gas supply system with a pressure of high-pressure gas for the flushing liquid tank, QLiquid for treating urinary tract infectionFor the output demand of the toilet bowl, sLiquid for treating urinary tract infectionSpecific resistance of the pipe for the liquid supply line, LLiquid for medical purposeThe length, rho, from the outlet of the toilet to the supply of the flushing liquid tankLiquid for treating urinary tract infectionThe density of flushing liquid in the flushing liquid tank is g, the gravity acceleration is g, and a liquid supply port of the flushing liquid tank is a position where the liquid supply pipeline is communicated with the flushing liquid tank.
The derivation of the formula is as follows:
wherein,
ΔP＝P1 liquid-P2 liquid＝P1 liquid，
P1 liquidProviding the gas supply system with the pressure of high-pressure gas for supplying liquid to the flushing liquid tank,
Pliquid 2The pressure at the outlet of the toilet bowl can be considered as 0.
In an implementation, the pressure of the high-pressure gas for water supply satisfies the following formula:
Pwater 1＝QWater (W) 2·sWater (W)·LWater (W)·ρWater (W)·g
Wherein, PWater 1Providing said clear water tank with a supply of water using high pressure gas, QWater (W)Water output requirement for water appliances, sWater (W)Specific resistance of the conduit, L, for the water supply lineWater (W)Is the length between the water outlet of the water using appliance and the water supply opening of the clean water tank, rhoWater (W)G is the gravity acceleration, and the water supply port of the clean water tank is the position where the water supply pipeline is communicated with the clean water tank.
In an implementation, as shown in fig. 2, the air supply main line 210 is further provided with a filter, and the filter 214 is arranged between the pressure regulating valve 213 and a communication part between the flushing liquid tank air supply branch line 210-2 and the air supply main line 210;
wherein the filter 214 is used for filtering the high-pressure gas in the gas supply main line.
In the description of the present application and the embodiments thereof, it is to be understood that the terms "top", "bottom", "height", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
In this application and its embodiments, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application and its embodiments, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (31)
1. A rail vehicle plumbing system, comprising:
the flushing liquid pipeline system comprises a flushing liquid tank and a liquid supply pipeline, and the liquid supply pipeline is communicated with the flushing liquid tank;
the clean water pipeline system comprises a clean water tank and a water supply pipeline, and the water supply pipeline is communicated with the clean water tank;
the gas supply system is respectively communicated with the top of the flushing liquid tank and the top of the clear water tank, and is used for supplying high-pressure gas for liquid supply to the flushing liquid tank and supplying high-pressure gas for water supply to the clear water tank;
the high-pressure gas for liquid supply is used for pressing flushing liquid in the flushing liquid tank into the liquid supply pipeline, the flushing liquid is used for flushing a toilet stool of the railway vehicle, and the high-pressure gas for water supply is used for pressing clean water in the clean water tank into the water supply pipeline;
the flushing fluid pipeline system also comprises a liquid injection pipeline, the liquid injection pipeline is communicated with the flushing fluid tank and is provided with a liquid injection pressure switch, and the position where the liquid injection pipeline is communicated with the flushing fluid tank is arranged at the lower part of the side wall of the flushing fluid tank;
the gas supply system is provided with a flushing liquid tank gas supply electromagnetic valve which is electrically connected with the liquid injection pressure switch; the flushing liquid tank air supply electromagnetic valve is controlled by the liquid injection pressure switch, and when the liquid injection pressure in the liquid injection pipeline reaches a first preset value, the liquid injection pressure switch is powered off to close the flushing liquid tank air supply electromagnetic valve so as to prevent flushing liquid from entering the air supply system;
the flushing liquid tank is used for supplying flushing liquid to the flushing liquid tank, and the gas supply system is used for supplying high-pressure gas for liquid supply to the flushing liquid tank.
2. The rail vehicle plumbing system of claim 1, wherein the flushing fluid is a liquid containing an antifreeze and an insecticide.
3. The rail vehicle plumbing system of claim 2, further comprising a wash overflow line in communication with the wash tank at an upper portion of the side wall of the wash tank;
the flushing liquid overflow pipeline is provided with a flushing liquid overflow pipeline electromagnetic valve which is electrically connected with the liquid injection pressure switch; the flushing liquid overflow pipeline electromagnetic valve is controlled by the liquid injection pressure switch, and when the liquid injection pressure in the liquid injection pipeline reaches a first preset value, the liquid injection pressure switch is powered off to enable the flushing liquid overflow pipeline electromagnetic valve to be opened so as to communicate the flushing liquid overflow pipeline during liquid injection.
4. The rail vehicle plumbing system of claim 3, further comprising a flushing fluid relief line in communication with the flushing fluid tank at an upper portion of a sidewall of the flushing fluid tank;
the flushing fluid pressure relief pipeline is provided with a pressure relief valve of the flushing fluid pressure relief pipeline;
the flushing fluid pressure relief pipeline pressure relief valve is used for being opened when the hydraulic pressure in the flushing fluid pressure relief pipeline reaches a preset value so as to be communicated with the flushing fluid pressure relief pipeline.
5. The rail vehicle plumbing system of claim 4, wherein the wash liquid overflow line and the wash liquid relief line communicate with the wash liquid tank at the same location.
6. The rail vehicle liquid feeding and discharging system according to claim 5, wherein the position where the liquid supply pipeline is communicated with the flushing liquid tank is located at the lower part of the side wall of the flushing liquid tank;
the liquid supply pipeline is provided with a manual stop valve of the liquid supply pipeline;
the liquid supply pipeline is used for being connected with a toilet stool of the railway vehicle, and the manual stop valve of the liquid supply pipeline is used for adjusting the liquid supply pipeline.
7. The rail vehicle plumbing system of claim 6, wherein the flushing liquid piping system further comprises a drain line;
the liquid discharge pipeline comprises a main liquid discharge pipe and two branch liquid discharge pipes, one end of the main liquid discharge pipe is communicated with the flushing liquid tank, the communicated position of the main liquid discharge pipe is positioned at the lower part of the side wall of the flushing liquid tank, the two branch liquid discharge pipes are arranged in parallel and are respectively communicated with the other end of the main liquid discharge pipe, and each branch liquid discharge pipe is provided with a manual liquid discharge valve;
the two branch drain pipes are arranged on two sides of the railway vehicle, and the manual drain valve is used for emptying the flushing liquid of the flushing liquid tank through manual operation.
8. The rail vehicle plumbing system of claim 7, wherein the fill line, the supply line and the drain line communicate with the flush tank at the same location.
9. The rail vehicle plumbing system of claim 8, wherein a tailpipe of the flushing fluid overflow line is reused as a tailpipe of the flushing fluid pressure relief line; flushing liquid in the flushing liquid overflow pipeline and the flushing liquid pressure relief pipeline flows through a tail pipe of the flushing liquid overflow pipeline;
the tail pipe of the flushing liquid overflow pipeline is a section of the flushing liquid overflow pipeline away from the flushing liquid tank along the length direction of the flushing liquid overflow pipeline.
10. The rail vehicle plumbing system of claim 9, wherein the flushing liquid piping system further comprises an evacuation pipe;
the two ends of the emptying pipe are respectively communicated with the tail pipes of the two branch liquid discharge pipes, and the middle part of the emptying pipe is communicated with the tail pipe of the flushing liquid overflow pipeline so as to empty the flushing liquid in the tail pipe of the flushing liquid overflow pipeline through the emptying pipe and the tail pipes of the branch liquid discharge pipes;
wherein the tail pipe of the branch drain pipe is a section from the manual drain valve to the open end of the branch drain pipe, and the open end of the branch drain pipe is used for supplying the flushing liquid to the external flushing liquid collecting device.
11. The rail vehicle liquid feeding and discharging system as claimed in claim 2, wherein the liquid injection pipeline is provided with a liquid injection check valve, and the liquid injection check valve is arranged between the liquid injection pressure switch and the flushing liquid tank;
the liquid injection check valve is used for preventing flushing liquid in the liquid injection pipeline from flowing backwards.
12. The rail vehicle plumbing system of claim 2, further comprising an upper line, the upper line comprising:
the two liquid feeding pipes are arranged on two sides of the rail vehicle and connected with external liquid injection equipment;
the two upper liquid pipes are connected with the liquid injection pipeline through the upper liquid three-way reversing valve;
the upper liquid three-way reversing valve is used for enabling the valve core of the upper liquid three-way reversing valve to be jacked to the other end by flushing liquid with pressure when the hydraulic pressure of the flushing liquid at the upper liquid three-way reversing valve reaches a preset value after one of the upper liquid pipes is connected with external liquid injection equipment, so that the flushing liquid is prevented from flowing out of the other upper liquid pipe.
13. The rail vehicle liquid feeding and discharging system according to any one of claims 1 to 12, wherein the clean water pipeline system further comprises a water injection pipeline, the water injection pipeline is communicated with the clean water tank, and the water injection pipeline is provided with a water injection pressure switch;
the air supply system is provided with a clear water tank air supply electromagnetic valve which is electrically connected with the water injection pressure switch; the clear water tank air supply electromagnetic valve is controlled by the water injection pressure switch, and when the water injection pressure in the water injection pipeline reaches a first preset value, the water injection pressure switch is powered off to close the clear water tank air supply electromagnetic valve so as to prevent clear water from entering the air supply system;
the water injection pipeline is used for injecting clear water into the clear water tank, and the gas supply system is used for supplying high-pressure gas for water supply to the clear water tank.
14. The rail vehicle plumbing system of claim 13, further comprising a clean water overflow line in communication with the clean water tank at an upper portion of the side wall of the clean water tank;
the clear water overflow pipeline is provided with a clear water overflow pipeline electromagnetic valve which is electrically connected with the water injection pressure switch; the electromagnetic valve of the clear water overflow pipeline is controlled by the water injection pressure switch, and when the water injection pressure in the water injection pipeline reaches a first preset value, the water injection pressure switch is powered off to open the electromagnetic valve of the clear water overflow pipeline so as to communicate the clear water overflow pipeline during water injection.
15. The rail vehicle liquid feeding and discharging system of claim 14, wherein the clean water pipeline system further comprises a clean water pressure relief pipeline, and the clean water pressure relief pipeline is communicated with the clean water tank and is positioned at the upper part of the side wall of the clean water tank;
the clean water pressure relief pipeline is provided with a clean water pressure relief pipeline pressure relief valve;
the pressure relief valve of the clear water pressure relief pipeline is used for being opened when the water pressure in the clear water pressure relief pipeline reaches a preset value so as to be communicated with the clear water pressure relief pipeline.
16. The rail vehicle liquid supply and discharge system of claim 15, wherein the clean water pressure relief pipeline is further provided with a clean water pressure relief pipeline vacuum relief valve; the clean water pressure relief pipeline pressure relief valve is positioned between the clean water pressure relief pipeline vacuum relief valve and the clean water tank;
the vacuum release valve of the clean water pressure relief pipeline is used for being opened when negative pressure is generated in the clean water pressure relief pipeline or vacuum is gradually increased so as to break vacuum and enable water in the clean water pressure relief pipeline to be emptied.
17. The rail vehicle plumbing system of claim 16, wherein the clean water overflow line and the clean water pressure relief line communicate with the clean water tank at the same location.
18. The rail vehicle plumbing system of claim 17, wherein the water supply line communicates with the clean water tank at a location that is below a side wall of the clean water tank;
the water supply pipeline is provided with a manual stop valve of the water supply pipeline;
the water supply pipeline is used for being connected with a water using appliance of the railway vehicle, and the manual stop valve of the water supply pipeline is used for adjusting the water supply pipeline.
19. The rail vehicle plumbing system of claim 18, wherein the clean water conduit system further comprises a drain conduit;
the drainage pipeline comprises two drainage pipes which are arranged in parallel, and the two drainage pipes are respectively provided with an automatic drainage valve and a manual drainage valve;
the automatic drain valve is used for opening when the temperature of water in the clean water tank reaches a preset temperature so as to drain the water in the clean water tank; the manual drain valve is used for draining the clean water tank through manual operation.
20. The rail vehicle plumbing system of claim 19, wherein the water supply line and the water drain line communicate with the clean water tank at the same location.
21. The rail vehicle plumbing system of claim 20, wherein a tailpipe of the clean water overflow line is reused as a tailpipe of the clean water pressure relief line and a tailpipe of the drain line; clear water in the clear water overflow pipeline, the clear water pressure relief pipeline and the drainage pipeline flows through a tail pipe of the clear water overflow pipeline;
the tail pipe of the clean water overflow pipeline is a section of the clean water overflow pipeline which is far away from the clean water tank along the length direction of the clean water overflow pipeline.
22. The rail vehicle plumbing system of claim 13, wherein the water supply line is wrapped with a heat tracing wire and a cold resistant material.
23. The rail vehicle plumbing system of claim 21, wherein the fill line communicates with the clean water tank at a top of the clean water tank;
the water injection pipeline is also provided with a water injection pipeline vacuum release valve, and the water injection pipeline vacuum release valve is positioned at the top of the clean water tank and between the water injection pressure switch and the clean water tank;
the vacuum release valve of the water injection pipeline is used for being opened when negative pressure or vacuum is generated in the clean water tank and gradually rises so as to break the vacuum and enable clean water in the clean water tank to be emptied.
24. The rail vehicle plumbing system of claim 23, wherein the fill line is further provided with a fill check valve disposed between the fill pressure switch and the fill line vacuum release valve;
wherein, the water injection check valve is used for preventing the clear water refluence in the water injection pipeline.
25. The rail vehicle plumbing system of claim 24, wherein the clean water line system further comprises a water supply line, the water supply line comprising:
the two water feeding pipes are arranged on two sides of the railway vehicle and connected with external water injection equipment;
the two water feeding pipes are connected with the water injection pipeline through the water feeding three-way reversing valves; the water feeding three-way reversing valve is used for enabling the valve core of the water feeding three-way reversing valve to be propped to the other end by clean water with pressure when the water pressure at the position of the water feeding three-way reversing valve reaches a preset value after one of the water feeding pipes is connected with external water injection equipment, so that the clean water is prevented from flowing out of the other water feeding pipe.
26. The rail vehicle liquid feeding and discharging system according to claim 13, wherein the gas supply system comprises a gas supply trunk and a flushing tank gas supply branch, the flushing tank gas supply branch is communicated with the gas supply trunk, and the flushing tank gas supply solenoid valve is arranged on the flushing tank gas supply branch;
the gas supply main line is also provided with a pneumatic stop valve, and the pneumatic stop valve is arranged between an external gas source and a communication part of the flushing liquid tank gas supply branch and the gas supply main line;
wherein, the pneumatic stop valve is used for isolating the total wind of the rail vehicle from the air supply system in the liquid supply and drainage system.
27. The rail vehicle liquid feeding and discharging system according to claim 26, wherein the air supply system further comprises a clean water tank air supply branch, the clean water tank air supply branch is communicated with the air supply trunk, and the clean water tank air supply solenoid valve is arranged on the clean water tank air supply branch.
28. The rail vehicle liquid feeding and discharging system of claim 27, wherein the air supply trunk is further provided with a pressure regulating valve, and the pressure regulating valve is arranged between the pneumatic stop valve and a communication position of the flushing tank air supply branch and the air supply trunk;
the pressure regulating valve is used for regulating the total wind of the railway vehicle to provide high-pressure gas for liquid supply for the flushing liquid tank and high-pressure gas for water supply for the clear water tank, the pressure of the high-pressure gas for liquid supply depends on the liquid outlet quantity demand of the toilet stool, and the pressure of the high-pressure gas for water supply depends on the water outlet quantity demand of a water appliance of the railway vehicle.
29. The rail vehicle liquid feeding and discharging system of claim 28, wherein the air supply trunk is further provided with a filter, and the filter is arranged between the pressure regulating valve and a communication part of the flushing tank air supply branch and the air supply trunk;
wherein, the filter is used for filtering the high-pressure gas in the gas supply main line.
30. The rail vehicle liquid supply and discharge system of claim 28, wherein the pressure of the high pressure gas for liquid supply satisfies the following equation:
Pliquid 1＝QLiquid for treating urinary tract infection 2·sLiquid for treating urinary tract infection·LLiquid for treating urinary tract infection·ρLiquid for treating urinary tract infection·g
Wherein, PLiquid 1Providing the gas supply system with a pressure of high-pressure gas for the flushing liquid tank, QLiquid for treating urinary tract infectionFor the output demand of the toilet bowl, sLiquid for treating urinary tract infectionSpecific resistance of the pipe for the liquid supply line, LLiquid for treating urinary tract infectionThe length, rho, from the outlet of the toilet to the supply of the flushing liquid tankLiquid for treating urinary tract infectionThe density of flushing liquid in the flushing liquid tank, g is the gravity acceleration, and the liquid supply port of the flushing liquid tank is the liquid supply pipeline and the flushing liquidThe positions where the washing liquid tanks are communicated.
31. The rail vehicle liquid supply and discharge system of claim 28, wherein the pressure of the high pressure gas for water supply satisfies the following equation:
Pwater 1＝QWater (W) 2·sWater (W)·LWater (W)·ρWater (I)·g
Wherein, PWater 1Providing said clear water tank with a supply of water using high pressure gas, QWater (W)Water output requirement for water appliances, sWater (W)Specific resistance of the conduit, L, for the water supply lineWater (W)Is the length between the water outlet of the water using appliance and the water supply opening of the clean water tank, rhoWater (W)G is the gravity acceleration, and the water supply port of the clean water tank is the position where the water supply pipeline is communicated with the clean water tank.
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| CN201910806427.3A CN112441043B (en) | 2019-08-29 | 2019-08-29 | Liquid supply and drainage system for railway vehicle |
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| CN201910806427.3A CN112441043B (en) | 2019-08-29 | 2019-08-29 | Liquid supply and drainage system for railway vehicle |
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| CN112441043B true CN112441043B (en) | 2022-05-17 |
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| CN201371814Y (en) * | 2009-02-19 | 2009-12-30 | 唐山轨道客车有限责任公司 | Water supply system for under-car water tank |
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