CN112441033B - Water supply and drainage system for railway vehicle - Google Patents
Water supply and drainage system for railway vehicle Download PDFInfo
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- CN112441033B CN112441033B CN201910806416.5A CN201910806416A CN112441033B CN 112441033 B CN112441033 B CN 112441033B CN 201910806416 A CN201910806416 A CN 201910806416A CN 112441033 B CN112441033 B CN 112441033B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 583
- 238000002347 injection Methods 0.000 claims abstract description 117
- 239000007924 injection Substances 0.000 claims abstract description 117
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 10
- 230000005484 gravity Effects 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 238000009428 plumbing Methods 0.000 claims 2
- 239000003320 cold-resistant material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000001276 controlling effect Effects 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
- 239000000243 solution Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
- B61C17/02—Bunkers; Tanks; Tenders; Water or fuel pick-up or scoop apparatus; Water or fuel supply fittings
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Abstract
The embodiment of the application provides a rail vehicle water supply and drainage system, includes: the clean water pipeline system comprises a clean water tank and a water injection pipeline, and the water injection pipeline is communicated with the clean water tank and is provided with a water injection pressure switch; the gas supply system is communicated with the top of the clear water tank and is provided with a clear water tank gas supply electromagnetic valve which is electrically connected with the water injection pressure switch; the clean 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 preset value, the water injection pressure switch is powered off to close the clean water tank air supply electromagnetic valve so as to prevent clean 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. The technical problem that parts of traditional wind pressure water supply mode damaged easily has been solved to this application embodiment.
Description
Technical Field
The application relates to the technical field of railway vehicles, in particular to a railway vehicle water supply and drainage system.
Background
The water tank is mostly arranged under the train of the high-speed rail train, so that the gravity center of the train is reduced, and the stability of the operation of the rail train is improved. The water supply method under the vehicle is a water supply method in which a water tank is installed under the vehicle and water is supplied to each water-using appliance on the vehicle by power. Under-vehicle water supply is generally divided into two modes of wind pressure water supply and electric pump water supply.
Fig. 1 is a schematic view of wind pressure water supply of a lower water tank of a vehicle. As shown in fig. 1, it comprises a cold water pipe 11, a floor 12, a water injection pipe 13, a main air pipe 14, a three-way valve 21, a five-way valve 22, an air reservoir 23 and a check valve 24. The main parts for the wind pressure water supply of the under-vehicle water tank are a five-way valve and a three-way valve. Install the water filling port in the vehicle both sides, after the water filling port is connected with outside water source, water pressure pushes up the case of three-way valve to the other end, prevents that water from flowing from another water filling port. The five-way valve is installed at the end of the water tank and has five passages, including a passage for water filling, a passage for water supply to the water tank, a passage for communicating with a water supply pressure valve, a passage for air supply to the water tank, and a passage for air exhaust in the water tank (after the water tank is fully loaded, water may overflow from the passages). The five-way valve is used for controlling water supply, air supply and air exhaust of the water tank. The five-way valve plays an important role in the wind pressure water supply mode of the water tank under the vehicle, the starting and stopping times are many, and the requirement on the five-way valve is extremely high.
Therefore, the parts of the wind pressure water supply mode are easy to damage, and the technical problem which needs to be solved by the technical personnel in the field is urgent.
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 water supply and drainage system to solve the technical problem that the spare part of traditional wind pressure water supply mode damaged easily.
The embodiment of the application provides a rail vehicle water supply and drainage system, includes:
the clean water pipeline system comprises a clean water tank and 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 gas supply system is communicated with the top of the clear water tank and is provided with a clear water tank gas supply electromagnetic valve which is electrically connected with the water injection pressure switch; the clean 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 clean water tank air supply electromagnetic valve so as to prevent clean 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.
Due to the adoption of the technical scheme, the embodiment of the application has the following technical effects:
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 water supply and drainage system of this application embodiment 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 water supply and drainage system in the embodiment of the application are simple in function, the number of starting and stopping the single parts is small, and the probability of damage of the single parts is low.
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 water supply and drainage system according to an embodiment of the present 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 is arranged in the water tank,
120 water injection pipeline, 121 water injection pressure switch, 122 water injection pipeline vacuum release valve,
123 a water-filling check valve for water,
a 130 water feeding pipe, a 131 water feeding three-way reversing valve,
140 clear water overflow pipeline, 141 clear water overflow pipeline electromagnetic valve,
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 pipe, 171 automatic drain valve, 172 manual drain valve,
210 air supply main line, 210-1 clear water tank air supply branch, 211-1 clear water tank air supply solenoid valve,
211-3 clear water tank air supply one-way valve, 212 pneumatic stop valve, 213 pressure regulating valve, 214 filter.
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 water supply and drainage system according to an embodiment of the present application.
As shown in fig. 2, the rail vehicle water supply and drainage system of the embodiment of the present application includes:
the clean water pipeline system comprises a clean water tank 110 and a water injection pipeline 120, wherein the water injection pipeline 120 is communicated with the clean water tank 110 and is provided with a water injection pressure switch 121;
the gas supply system is communicated with the top of the clean water tank and is provided with a clean water tank gas supply electromagnetic valve 211-1, and the clean 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 rail vehicle drainage system that gives of this application embodiment, clear water tank air feed solenoid valve are controlled by water injection pressure switch, like this when water injection pressure in the water injection pipeline reaches first default, water injection pressure switch outage makes clear water tank air feed solenoid valve closes, closes air supply system promptly to prevent that there is the clear water to get into 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 water supply and drainage system of this application embodiment 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 water supply and drainage system in the embodiment of the application are simple in function, the number of starting and stopping the single parts is small, and the probability of damage of the single parts is low.
In operation, as shown in FIG. 2, a clean water tank 110 is located within the rail vehicle.
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 enabling the valve core of the three-way water-feeding reversing valve to be pressed towards the other end by the pressurized 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 the clear water in the clear water tank to overflow from the clear water pressure relief pipeline when the clear water is too much in the water injection stage and the water non-injection stage.
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 an implementation, as shown in fig. 2, the clean water pipeline system further includes a water supply pipeline 160, and the water supply pipeline 160 is communicated with the clean water tank 110 and is located at a lower portion of the sidewall of the clean water tank;
the water supply line 160 is provided with a water supply line manual cut-off valve 161;
the water supply pipeline 160 is used for being connected with a water using device of the railway vehicle, the manual stop valve 161 of the water supply pipeline is used for adjusting the water supply pipeline, and the high-pressure gas for water supply is used for pressing the clean water in the clean water tank into the water supply pipeline so as to enter the water using device of the railway vehicle.
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 drain pipeline;
the drain line comprises two drain pipes 170 arranged in parallel, and the two drain pipes 170 are respectively provided with an automatic drain valve 171 and a manual drain 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 drain the clean water tank of water by being manually operated.
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 water supply and drainage system of the railway vehicle 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.
The air supply system has the following features.
In implementation, as shown in fig. 2, the gas supply system includes a gas supply main line 210 and a clear water tank gas supply branch line 210-1, the clear water tank gas supply branch line 210-1 is communicated with the gas supply main line 210, and the clear water tank gas supply electromagnetic valve 211-1 is arranged in the clear water tank gas supply branch line 210-1;
the air supply main line 210 is further 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 clear water tank air supply branch and the air supply main line;
wherein the pneumatic stop valve 212 is used for isolating the total wind of the railway vehicle from the air supply system in the water supply and drainage system.
The pneumatic stop valve isolates the total wind of the railway vehicle from the gas supply system in the water supply and drainage system, and divides the total wind and the gas supply system of the railway vehicle into two parts, so that conditions are provided for providing high-pressure gas for water supply for the gas supply system for independent control.
In implementation, as shown in fig. 2, the clean water tank air supply branch 210-1 is further provided with a clean water tank air supply one-way valve 211-3, and the clean water tank air supply one-way valve 211-3 is arranged between the clean water tank air supply electromagnetic valve 211-1 and the clean water tank.
The gas supply one-way valve of the clean water tank ensures the one-way flow of the high-pressure gas for water supply in the gas supply branch of the clean water 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 arranged between the pneumatic stop valve 212 and a communication position between the clean water tank air supply branch and the air supply main line;
the pressure regulating valve 213 is used for regulating the total wind of the railway vehicle to provide the clean water tank with high-pressure gas for water supply, and the pressure of the high-pressure gas for water supply depends on the water yield requirement of a water appliance of the railway vehicle.
The pressure regulating valve regulates the total wind of the railway vehicle and provides high-pressure gas for water supply for the clean water tank.
In an embodiment, the pressure of the high-pressure gas for water supply satisfies the following formula:
P1＝Q2·s·L·ρ·g
wherein, P1The pressure of high-pressure gas for supplying water is provided for the clean water tank by the gas supply system, Q is the water yield requirement of the water using device, s is the pipeline specific resistance of the water supply pipeline, L is the length from the water outlet of the water using device to the water supply port of the clean water tank, rho is the density of clean water in the clean water tank, 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.
The derivation of the formula is as follows:
wherein,
ΔP＝P1-P2＝P1，
P1the pressure of high-pressure gas for supplying water is provided for the clean water tank by the gas supply system,
P2the pressure at the outlet of the water using appliance can be considered to be 0.
In an implementation, as shown in fig. 2, the air supply main line 210 is further provided with a filter 214, and the filter 214 is arranged between the pressure regulating valve 213 and a communication position between the clean water tank air supply branch and the air supply main line;
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 (16)
1. A rail vehicle plumbing system, comprising:
the clean water pipeline system comprises a clean water tank and 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 gas supply system is communicated with the top of the clear water tank and is provided with a clear water tank gas supply electromagnetic valve which is electrically connected with the water injection pressure switch; the clean 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 clean water tank air supply electromagnetic valve so as to prevent clean water from entering the air supply system;
the water injection pipeline 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;
the clean water pipeline system also comprises a clean water overflow pipeline, and the clean water overflow 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 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 clear water overflow pipeline 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 open the clear water overflow pipeline electromagnetic valve so as to communicate the clear water overflow pipeline during water injection;
the electromagnetic valve of the clean water overflow pipeline and the electromagnetic valve of the clean water tank air supply are both 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 air supply electromagnetic valve of the clean water tank, and the electromagnetic valve of the clean water overflow pipeline is opened.
2. The railway vehicle water supply and drainage system of claim 1, 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.
3. The railway vehicle water supply and drainage system of claim 2, wherein the clean water pressure relief pipeline is further provided with a clean water pressure relief pipeline vacuum release 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 or vacuum is generated in the clean water pressure relief pipeline and gradually rises so as to break the vacuum and enable water in the clean water pressure relief pipeline to be emptied.
4. The railway vehicle water supply and drainage system of claim 3, wherein the clean water overflow line and the clean water pressure relief line are in communication with the clean water tank at the same location.
5. A rail vehicle water supply and drainage system as claimed in claim 4, wherein the clean water pipeline system further comprises a water supply pipeline which is communicated with the clean water tank and is positioned at the lower part of the 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.
6. The rail vehicle plumbing system of claim 5, 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.
7. A rail vehicle water supply and drain system as claimed in claim 6, wherein the water supply line and the water drain line communicate with the clean water tank at the same location.
8. The rail vehicle water supply and drainage system of claim 7, wherein 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.
9. A railway vehicle water supply and drainage system as claimed in claim 5, wherein the water supply line is wrapped with a heat tracing wire and cold resistant material.
10. A rail vehicle water supply and drain system as claimed in claim 1, wherein the fill line communicates with the clean water tank at a top portion 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.
11. A rail vehicle water supply and drain system as claimed in claim 10, wherein the fill line is further provided with a fill check valve disposed between the fill pressure switch and the fill line vacuum relief valve;
wherein, the water injection check valve is used for preventing the clear water refluence in the water injection pipeline.
12. A rail vehicle water supply and drain system as claimed in claim 11, wherein the clean water conduit system further comprises a water supply conduit, the water supply conduit 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.
13. The railway vehicle water supply and drainage system according to any one of claims 1 to 12, wherein the air supply system comprises an air supply trunk and a clear water tank air supply branch, the clear water tank air supply branch is communicated with the air supply trunk, and the clear water tank air supply solenoid valve is arranged on the clear water tank air supply branch;
the air supply main road is also provided with a pneumatic stop valve, and the pneumatic stop valve is arranged between an external air source and a communication position of the air supply branch of the clean water tank and the air supply main road;
wherein, the pneumatic stop valve is used for isolating the total wind of the railway vehicle from the air supply system in the water supply and drainage system.
14. The railway vehicle water supply and drainage system as claimed in claim 13, 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 part of the clean water 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 water supply for the clean water tank, and the pressure of the high-pressure gas for water supply depends on the water yield requirement of a water using appliance of the railway vehicle.
15. A rail vehicle water supply and drainage system as claimed in claim 14, wherein the pressure of the high pressure gas for water supply satisfies the following formula:
P1＝Q2·s·L·ρ·g
wherein, P1The pressure of high-pressure gas for supplying water is provided for the clean water tank by the gas supply system, Q is the water yield requirement of the water using device, s is the pipeline specific resistance of the water supply pipeline, L is the length from the water outlet of the water using device to the water supply port of the clean water tank, rho is the density of clean water in the clean water tank, 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.
16. A rail vehicle water supply and drainage system as claimed in claim 14, wherein the air supply trunk is further provided with a filter, the filter being disposed between the pressure regulating valve and a communication between the clean water 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.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910806416.5A CN112441033B (en) | 2019-08-29 | 2019-08-29 | Water supply and drainage system for railway vehicle |
| PCT/CN2019/117354 WO2021035969A1 (en) | 2019-08-29 | 2019-11-12 | Water supply and drainage system for railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910806416.5A CN112441033B (en) | 2019-08-29 | 2019-08-29 | Water supply and drainage system for railway vehicle |
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| Publication Number | Publication Date |
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| CN112441033A CN112441033A (en) | 2021-03-05 |
| CN112441033B true CN112441033B (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910806416.5A Active CN112441033B (en) | 2019-08-29 | 2019-08-29 | Water supply and drainage system for railway vehicle |
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| Country | Link |
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| CN (1) | CN112441033B (en) |
| WO (1) | WO2021035969A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152593A (en) * | 2021-04-28 | 2021-07-23 | 河南凯源水务科技有限公司 | Box type non-negative pressure water supply system |
| CN114919607B (en) * | 2022-06-24 | 2024-05-28 | 株洲中车时代电气股份有限公司 | Pressure-maintaining train water supply system and use method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10162836A1 (en) * | 2001-12-20 | 2003-07-10 | Erich Ott | Assembly for the storage of household drinking water, with a water tank and an air tank, has controlled air pressure on the water tank to give the water pressure with long-term and safe water storage |
| 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 |
| CN102862578B (en) * | 2012-09-28 | 2015-08-05 | 北京宜世通信息技术有限公司 | A kind of train water control system and method |
| CN203294097U (en) * | 2013-06-07 | 2013-11-20 | 南车青岛四方机车车辆股份有限公司 | Train water injection control device |
| CN103612637B (en) * | 2013-10-28 | 2016-03-16 | 山东华腾环保科技有限公司 | A kind of train water service and control method thereof |
| CN104709297B (en) * | 2015-03-03 | 2017-03-01 | 中国铁道科学研究院节能环保劳卫研究所 | Automatic overflow control device of railway cars |
| DE202015002424U1 (en) * | 2015-03-31 | 2015-04-30 | Siemens Aktiengesellschaft | Frost emptying a tank of a rail vehicle |
| KR101673091B1 (en) * | 2015-08-27 | 2016-11-04 | 권희준 | Freeze prevention system for water line of train |
| CN205573948U (en) * | 2016-03-14 | 2016-09-14 | 青岛亚通达铁路设备有限公司 | High and cold water supply system for EMUs |
| CN106013322A (en) * | 2016-06-07 | 2016-10-12 | 中国南方航空工业(集团)有限公司 | Water supply system for high-speed hydraulic dynamometer and circulating water pressure control method |
| CN106869248A (en) * | 2017-03-24 | 2017-06-20 | 中国北方发动机研究所(天津) | A kind of pressure-stabilizing water supply system with Unidirectional solenoid valve |
| CN209274591U (en) * | 2018-10-24 | 2019-08-20 | 青岛亚通达铁路设备有限公司 | A kind of pneumatic control water system for the vehicles |
| CN209194634U (en) * | 2018-11-03 | 2019-08-02 | 上海威克特航空地面设备有限公司 | A kind of aircraft kitchen testboard constant pressure water supply equipment |
| CN110509952A (en) * | 2019-09-03 | 2019-11-29 | 宁波中车时代电气设备有限公司 | Rail vehicle water filling device |
-
2019
- 2019-08-29 CN CN201910806416.5A patent/CN112441033B/en active Active
- 2019-11-12 WO PCT/CN2019/117354 patent/WO2021035969A1/en active Application Filing
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| Publication number | Publication date |
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| WO2021035969A1 (en) | 2021-03-04 |
| CN112441033A (en) | 2021-03-05 |
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