Water supply system, water supply method and rail vehicle

Abstract

The present invention relates to the field of water supply systems and provides a water supply system, a water supply method, and a rail vehicle. The water supply system includes a first water tank installed above the interior roof of the rail vehicle; a second water tank installed under the rail vehicle; a first pipeline fluidically connected to the first and second water tanks, a water supply pump provided on the first pipeline, and the second water tank adapted to supply water to the first water tank via the water supply pump; and a second pipeline fluidically connected to water-using equipment in the rail vehicle and connected in parallel to the first pipeline and fluidically connected to the first and second water tanks. This water supply system ensures the continuity and stability of the water supply system, reduces the complexity and error rate of manual operations, enhances the reliability of the water supply system, and facilitates maintenance and repair.

Description

Technical Field

[0001] The present invention relates to the field of water supply systems and provides a water supply system, a water supply method and a rail vehicle. Background Art

[0002] When a vehicle needs to be equipped with a water tank of sufficient capacity to meet the needs of long routes or long-term use, it will face the problem of "a large number of water tanks, scattered locations, and complex configuration and connection design on and under the vehicle, as well as pipelines, valves, and water pumps" due to the limited space available for the water tank layout. In order to meet a variety of possible application scenarios and emergencies, traditional manual operations have problems such as cumbersome operations, heavy workload, and human errors. Summary of the Invention

[0003] A first embodiment of the present invention provides a water supply system to solve the complex defects of water supply systems in related technologies and achieve an optimized design of the water supply system of a rail vehicle.

[0004] A second embodiment of the present invention provides a water supply method.

[0005] A third embodiment of the present invention provides a rail vehicle.

[0006] An embodiment of the first aspect of the present invention provides a water supply system, including a first water tank installed above the interior roof of a rail vehicle; a second water tank installed under the rail vehicle; a first pipeline, fluidly connected to the first water tank and the second water tank, a water supply pump is provided on the first pipeline, and the second water tank is suitable for replenishing water to the first water tank through the water supply pump; a second pipeline, fluidly connected to the water-using equipment in the rail vehicle and the second pipeline is connected in parallel to the first pipeline and fluidly connected to the first water tank and the second water tank.

[0007] According to a first embodiment of the present invention, the water supply system provides a first water tank installed above the interior ceiling of a rail vehicle. This design allows the water tank to fully utilize the vertical space within the vehicle, without occupying the available space for passengers or cargo. A second water tank is installed beneath the rail vehicle, utilizing the space beneath the vehicle and further improving interior space utilization. By installing a water replenishment pump in the first pipeline, the second water tank can promptly replenish the first water tank with water, ensuring the continuity and stability of the water supply system. When the water level in the first water tank drops to a certain level, the water replenishment pump automatically activates to ensure that the water level in the first water tank is always maintained within a reasonable range. The provision of a water replenishment pump automates and intelligentizes the water replenishment operation, reducing the complexity and error rate of manual operations. The second pipeline, acting as a separate water supply channel parallel to the first pipeline, directly connects the first water tank to water-using equipment, providing a water source for the water-using equipment and enhancing the reliability of the water supply system. If the first pipeline fails to supply water due to a malfunction or other reason, the second pipeline can serve as a backup channel to ensure the normal operation of the water-using equipment. The water supply system features a simple and clear design, with clear connections between components, making it easy to maintain and repair. This water supply system is not only suitable for rail vehicles, but can also be modified and adjusted according to actual needs to adapt to other types of transportation or scenarios.

[0008] According to one embodiment of the present invention, a gravity water supply valve is connected between the first pipeline and the second pipeline.

[0009] According to one embodiment of the present invention, a first water supply pump is provided between the second pipeline and the first water tank, and a second water supply pump is provided between the second pipeline and the second water tank.

[0010] According to one embodiment of the present invention, a third pipeline is further connected between the first water tank and the second water tank, and a solenoid valve is connected between the second pipeline and the third pipeline. The first water tank is suitable for replenishing water to the second water tank through the solenoid valve.

[0011] According to one embodiment of the present invention, a drain valve is further provided on the first pipeline.

[0012] According to one embodiment of the present invention, there are multiple first water tanks, the multiple first water tanks are fluidically connected through a first connecting pipe, and the multiple first water tanks are normally connected to the atmosphere through a first connecting air pipe; there are multiple second water tanks, the multiple second water tanks are fluidically connected through a second connecting pipe, and the multiple second water tanks are normally connected to the atmosphere through a second connecting air pipe.

[0013] According to one embodiment of the present invention, water filling ports are provided on both the first water tank and the second water tank along the width direction of the rail vehicle.

[0014] A second aspect of the present invention provides a water supply method for a water supply system as described above, comprising: obtaining liquid level information of the first water tank and the second water tank and / or obtaining status information of the first pipeline and the second pipeline; and adjusting the working status of the water supply pump based on the liquid level information and / or the status information.

[0015] The water supply method provided by the second embodiment of the present invention obtains real-time liquid level information from the first and second water tanks, as well as status information from the first and second pipelines. This ensures that the system can rapidly respond to changes in the water supply system. Based on the acquired liquid level and pipeline status information, the system automatically determines the status of the water supply system and adjusts the operating status of the water supply pump accordingly. This intelligent adjustment method improves the responsiveness and accuracy of the water supply system. When the liquid level in the first water tank falls below a preset threshold, the system automatically activates the water supply pump to replenish water, ensuring the continuity and stability of the water supply system. If the first pipeline fails, the system quickly switches to the water supply pump, avoiding water supply interruptions and improving the reliability of the water supply system. This automated and intelligent management approach reduces the complexity and error rate of manual operations. The system can automatically determine and adjust the status of the water supply system, reducing the need for human intervention. The water supply method of this water supply system can be expanded and customized according to actual needs. For example, parameters such as the liquid level threshold and pipeline configuration can be adjusted to meet specific water supply requirements based on different rail vehicle types and water supply needs.

[0016] According to one embodiment of the present invention, a gravity water supply valve is connected between the first pipeline and the second pipeline; the step of adjusting the working state of the water supply pump based on the liquid level information and / or the status information includes: when the second pipeline on the first water tank fails, supplying water to the water-using equipment through the second pipeline on the second water tank; or, when the second pipeline on the first water tank and the second water tank fails, supplying water to the water-using equipment through the gravity water supply valve or the water supply pump; or, when the liquid level of the first water tank is lower than a first threshold value, the second water tank replenishes water to the first water tank through the first pipeline.

[0017] A third aspect of the present invention provides a rail vehicle comprising the water supply system as described above.

[0018] According to the third aspect of the present invention, a rail vehicle provided by an embodiment integrates an efficient and reliable water supply system, ensuring that passengers have access to clean drinking water at all times during their journey. The water supply system utilizes a dual water tank design and parallel piping configuration, ensuring a continuous and stable water supply. Even in the event of a component failure, the system can quickly switch to a backup mode, preventing water supply interruptions.

[0019] According to a first embodiment of the present invention, the water supply system provides a first water tank installed above the interior ceiling of a rail vehicle. This design allows the water tank to fully utilize the vertical space within the vehicle, without occupying the available space for passengers or cargo. A second water tank is installed beneath the rail vehicle, utilizing the space beneath the vehicle and further improving interior space utilization. By installing a water replenishment pump in the first pipeline, the second water tank can promptly replenish the first water tank with water, ensuring the continuity and stability of the water supply system. When the water level in the first water tank drops to a certain level, the water replenishment pump automatically activates to ensure that the water level in the first water tank is always maintained within a reasonable range. The provision of a water replenishment pump automates and intelligentizes the water replenishment operation, reducing the complexity and error rate of manual operations. The second pipeline, acting as a separate water supply channel parallel to the first pipeline, directly connects the first water tank to water-using equipment, providing a water source for the water-using equipment and enhancing the reliability of the water supply system. If the first pipeline fails to supply water due to a malfunction or other reason, the second pipeline can serve as a backup channel to ensure the normal operation of the water-using equipment. The water supply system features a simple and clear design, with clear connections between components, making it easy to maintain and repair. This water supply system is not only suitable for rail vehicles, but can also be modified and adjusted according to actual needs to adapt to other types of transportation or scenarios.

[0020] Furthermore, the water supply method provided by the second embodiment of the present invention obtains real-time liquid level information from the first and second water tanks, as well as status information from the first and second pipelines. This ensures that the system can rapidly respond to changes in the water supply system. Based on the acquired liquid level and pipeline status information, the system can automatically determine the status of the water supply system and adjust the operating status of the water supply pump accordingly. This intelligent adjustment method improves the responsiveness and accuracy of the water supply system. When the liquid level in the first water tank falls below a preset threshold, the system automatically activates the water supply pump to replenish water, ensuring the continuity and stability of the water supply system. If the first pipeline fails, the system quickly switches to the water supply pump, avoiding water supply interruptions and improving the reliability of the water supply system. This automated and intelligent management approach reduces the complexity and error rate of manual operations. The system can automatically determine and adjust the status of the water supply system, reducing the need for human intervention. The water supply method of this water supply system can be expanded and customized according to actual needs. For example, parameters such as the liquid level threshold and pipeline configuration can be adjusted to meet specific water supply requirements based on different rail vehicle types and water supply needs.

[0021] Furthermore, the rail vehicle provided by the third embodiment of the present invention integrates an efficient and reliable water supply system, ensuring that passengers have access to clean drinking water at all times during their journey. The water supply system utilizes a dual water tank design and parallel piping configuration, ensuring a continuous and stable water supply. Even if a component fails, the system can quickly switch to a backup mode, preventing water supply interruptions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic structural diagram of the water supply system provided by the present invention.

[0024] Figure 2 It is a schematic flow chart of the water supply method provided by the present invention.

[0025] Reference numerals:

[0026] 100. First water tank; 102. Second water tank; 104. First pipeline; 106. Make-up water pump; 108. Second pipeline; 110. Gravity water supply valve; 112. First water supply pump; 114. Second water supply pump; 116. Third pipeline; 118. Solenoid valve; 120. Drain valve; 122. First connecting pipe; 124. First connecting air pipe; 126. Second connecting pipe; 128. Second connecting air pipe; 130. Water inlet. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0028] like Figure 1As shown, an embodiment of the first aspect of the present invention provides a water supply system, including a first water tank 100, a second water tank 102, a first pipeline 104 and a second pipeline 108; wherein, the first water tank 100 is installed above the interior roof of the rail vehicle; the second water tank 102 is installed under the rail vehicle; the first pipeline 104 is fluidically connected to the first water tank 100 and the second water tank 102, and a water supply pump 106 is provided on the first pipeline 104, and the second water tank 102 is suitable for supplying water to the first water tank 100 through the water supply pump 106; the second pipeline 108 is fluidically connected to the water-using equipment in the rail vehicle and the second pipeline 108 is connected in parallel to the first pipeline 104 and fluidically connected to the first water tank 100 and the second water tank 102.

[0029] According to the water supply system provided by the first embodiment of the present invention, the first water tank 100 is installed above the interior ceiling of the rail vehicle. This design allows the water tank to fully utilize the vertical space within the vehicle, without occupying the available space for passengers or cargo. The second water tank 102 is installed under the rail vehicle, utilizing the space under the vehicle and further improving the efficiency of the interior space. By providing a water replenishment pump 106 on the first pipeline 104, the second water tank 102 can promptly replenish water to the first water tank 100, ensuring the continuity and stability of the water supply system. When the water level in the first water tank 100 drops to a certain level, the water replenishment pump 106 automatically activates to ensure that the water level in the first water tank 100 is always maintained within a reasonable range. The provision of the water replenishment pump 106 makes the water replenishment operation more automated and intelligent, reducing the complexity and error rate of manual operation. The second pipeline 108, as another water supply channel connected in parallel with the first pipeline 104, directly connects the first water tank 100 and water-using equipment, providing a water source for the water-using equipment and enhancing the reliability of the water supply system. If the first pipeline 104 fails to supply water due to a fault or other reason, the second pipeline 108 can serve as a backup channel to ensure the normal operation of the water-using equipment. The design of this water supply system is simple and clear, with clear connections between various components, making it easy to maintain and repair. This water supply system is not only suitable for rail vehicles, but can also be modified and adjusted according to actual needs to adapt to other types of transportation or scenarios.

[0030] Please continue to see Figure 1 The system primarily includes a first water tank 100, a second water tank 102, a first pipeline 104, and a second pipeline 108. The first water tank 100 is mounted above the interior ceiling of the rail vehicle. This design eliminates the need for the water tank to occupy passenger or cargo space while fully utilizing the vertical space within the vehicle.

[0031] The second water tank 102 is installed under the rail vehicle. This design utilizes the space under the vehicle, further improving the utilization rate of the vehicle interior space. At the same time, the second water tank 102 serves as a backup or auxiliary water tank to ensure that the main water tank (i.e., the first water tank 100) can be replenished in time when the water supply is insufficient.

[0032] The first pipeline 104 fluid is connected to the first water tank 100 and the second water tank 102. A water replenishment pump 106 is provided on this pipeline. When the water level in the first water tank 100 is lower than a preset threshold, the water replenishment pump 106 will automatically start and pump water in the second water tank 102 into the first water tank 100 through the first pipeline 104, thereby ensuring that the water level in the first water tank 100 is maintained within a normal range.

[0033] Second pipeline 108 is in fluid communication with water-using equipment in the rail vehicle (such as restrooms and kitchens). Second pipeline 108 is also connected in parallel to first pipeline 104 and is also in fluid communication with first water tank 100 and second water tank 102. If first pipeline 104 fails to supply water due to a malfunction or other reason, second pipeline 108 can serve as a backup water supply channel to ensure the normal operation of water-using equipment.

[0034] By rationally installing the first water tank 100 and the second water tank 102, the space inside and under the rail vehicle is maximized, improving space efficiency. The dual-tank design and parallel piping configuration ensure that if any tank or pipeline fails, the system can quickly switch to backup mode, ensuring the continuity and stability of the water supply. The provision of the water supply pump 106 makes the water supply operation more automated and intelligent, reducing the complexity and error rate of manual operation. This water supply system can adjust the operating state of the water supply pump 106 according to actual needs, avoiding unnecessary energy consumption and complying with environmental protection and energy conservation requirements.

[0035] According to one embodiment of the present invention, a gravity water supply valve 110 is connected between the first pipeline 104 and the second pipeline 108 .

[0036] A gravity water supply valve 110 is installed between the first pipe 104 and the second pipe 108. The gravity water supply valve 110 is a special solenoid valve 118 that combines gravity and electromagnetic control mechanisms. It can automatically control the opening and closing of the pipe according to preset conditions and instructions, thereby realizing intelligent management of the water supply system.

[0037] Specifically, when first pipeline 104 (the main water supply line) is functioning normally, gravity water supply valve 110 remains closed, maintaining the main water supply. However, if first pipeline 104 fails to supply water due to a fault or other reason, the control system receives a corresponding signal and issues a command to gravity water supply valve 110. At this point, gravity water supply valve 110 quickly opens, allowing second pipeline 108 (the backup water supply line) to immediately connect to the water supply system, ensuring a continuous and stable water supply.

[0038] By installing the gravity water supply valve 110, a quick switch between the first pipeline 104 and the second pipeline 108 is achieved. When the main pipeline fails, the backup pipeline can immediately take over the water supply task, avoiding water supply interruption and greatly improving the reliability of the water supply system.

[0039] According to one embodiment of the present invention, a first water supply pump 112 is provided between the second pipeline 108 and the first water tank 100 , and a second water supply pump 114 is provided between the second pipeline 108 and the second water tank 102 .

[0040] The first water supply pump 112 is installed between the second pipeline 108 and the first water tank 100. When the water level in the first water tank 100 falls below a preset threshold, it draws water from the second water tank 102 and supplies it to the first water tank 100 through the second pipeline 108. Similarly, the second water supply pump 114 is installed between the second pipeline 108 and the second water tank 102. It is primarily used to supply water from the first water tank 100 or other water sources to the second water tank 102 when needed.

[0041] Both water supply pumps are intelligently controlled and can automatically adjust their working status according to system requirements and pipeline conditions. They can work independently or in conjunction to ensure the stable operation of the water supply system.

[0042] By configuring first and second water supply pumps 112 and 114, second pipeline 108 can more flexibly control water supply. When first water tank 100 requires water, first water supply pump 112 activates; when second water tank 102 needs to supply water to other water-consuming devices, second water supply pump 114 activates. This design allows the water supply system to flexibly adjust its water supply strategy based on actual conditions.

[0043] The configuration of two water supply pumps provides a higher level of reliability for the water supply system. If one pump fails, the other continues to operate, ensuring continuous water supply. Furthermore, the intelligent control function of the water supply pumps enables the system to automatically detect and handle failures, improving system stability and safety.

[0044] According to one embodiment of the present invention, a third pipeline 116 is connected between the first water tank 100 and the second water tank 102, and a solenoid valve 118 is connected between the second pipeline 108 and the third pipeline 116. The first water tank 100 is suitable for replenishing water to the second water tank 102 through the solenoid valve 118.

[0045] The third pipe 116 is directly connected between the first water tank 100 and the second water tank 102, so that the first water tank 100 can directly replenish water for the second water tank 102. In order to control this water replenishment path, a solenoid valve 118 is provided between the second pipe 108 and the third pipe 116.

[0046] By introducing the third pipe 116 and the solenoid valve 118, the water supply system gains greater flexibility. When the second water tank 102 needs to be replenished with water, the solenoid valve 118 can be opened to directly replenish the second water tank 102 with water stored in the first water tank 100, without relying on the replenishment pump 106 or the first pipe 104.

[0047] According to one embodiment of the present invention, a drain valve 120 is further provided on the first pipeline 104 .

[0048] In this embodiment, the drain valve 120 is installed on the first pipeline 104, which connects the first water tank 100 and the second water tank 102. The drain valve 120 replenishes water from the second water tank 102 to the first water tank 100 via the water replenishment pump 106. When the liquid in the first pipeline 104 needs to be drained, the drain valve 120 can be opened to allow the liquid in the pipeline to be discharged through the drain valve 120, thereby achieving the purpose of draining.

[0049] The drain valve 120 can be used to drain the liquid in the first pipeline 104, which facilitates maintenance and cleaning of the pipeline, helps to keep the pipeline clean and unobstructed, and prolongs the service life of the pipeline.

[0050] According to one embodiment of the present invention, there are multiple first water tanks 100, and the multiple first water tanks 100 are fluidically connected through the first connecting pipe 122, and the multiple first water tanks 100 are normally connected to the atmosphere through the first connecting air pipe 124; there are multiple second water tanks 102, and the multiple second water tanks 102 are fluidically connected through the second connecting pipe 126, and the multiple second water tanks 102 are normally connected to the atmosphere through the second connecting air pipe 128.

[0051] The first water tanks 100 are fluidically connected via the first connecting pipe 122, allowing them to replenish and distribute water to each other. Furthermore, the first water tanks 100 are also constantly connected to the atmosphere via the first connecting air pipe 124. This design helps maintain a stable air pressure within the water tanks, preventing pressure fluctuations from affecting their normal operation.

[0052] Similarly, for the second water tanks 102, the multiple second water tanks 102 are fluidically connected via the second connecting pipe 126 to ensure that they can replenish and distribute water to each other. In addition, the multiple second water tanks 102 are also constantly connected to the atmosphere via the second connecting air pipe 128 to maintain a stable air pressure in the water tanks.

[0053] By designing multiple first water tanks 100 and second water tanks 102, even if one or more of the water tanks malfunctions or runs low on water, the remaining tanks can quickly replenish the water, ensuring the continuity and stability of the water supply system. The fluid connectivity between the multiple tanks allows for free allocation of water between the different tanks, allowing for flexible adjustments based on actual needs. This contributes to more efficient and balanced water resource utilization.

[0054] According to one embodiment of the present invention, water injection ports 130 are provided on both the first water tank 100 and the second water tank 102 along the width direction of the rail vehicle.

[0055] Water inlets 130 are provided on both sides of the first water tank 100, along the width of the rail vehicle. This design allows workers to fill the first water tank 100 with water from either side of the vehicle without having to enter the vehicle or move to the other side. Similar to the first water tank 100, the second water tank 102 also has water inlets 130 located above or on its sides, along the width of the vehicle. This layout makes filling the second water tank 102 equally convenient, improving work efficiency.

[0056] By arranging the water filling port 130 in the vehicle width direction, the staff can directly fill the two water tanks with water from both sides of the vehicle, which greatly simplifies the operation process and improves work efficiency.

[0057] See also Figure 2 In a second aspect, an embodiment of the present invention provides a water supply method for a water supply system as described above, comprising steps 10 and 20; wherein, in step 10, liquid level information of the first water tank 100 and the second water tank 102 is obtained and / or status information of the first pipeline 104 and the second pipeline 108 is obtained; and in step 20, the working status of the water supply pump 106 is adjusted based on the liquid level information and / or status information.

[0058] The water supply method provided by the second embodiment of the present invention obtains real-time liquid level information from the first water tank 100 and the second water tank 102, as well as status information from the first pipeline 104 and the second pipeline 108. This ensures that the system can rapidly respond to changes in the water supply system. Based on the acquired liquid level and pipeline status information, the system automatically determines the status of the water supply system and adjusts the operating status of the water replenishment pump 106 accordingly. This intelligent adjustment method improves the responsiveness and accuracy of the water supply system. When the liquid level in the first water tank 100 falls below a preset threshold, the system automatically activates the water replenishment pump 106 to replenish water, ensuring the continuity and stability of the water supply system. If a fault occurs in the first pipeline 104, the system quickly switches to the water replenishment pump 106, avoiding water supply interruptions and improving the reliability of the water supply system. This automated and intelligent management approach reduces the complexity and error rate of manual operations. The system can automatically determine and adjust the status of the water supply system, reducing the need for human intervention. The water supply method of this water supply system can be expanded and customized according to actual needs. For example, parameters such as liquid level thresholds and pipeline configurations can be adjusted according to different rail vehicle types and water supply requirements to meet specific water supply needs.

[0059] First, the system needs to obtain real-time information about the liquid levels of the first and second water tanks 100, 102. This is typically achieved using liquid level sensors installed on the tanks. These sensors monitor the water levels in real time and feed this data back to the control system. Simultaneously, the system also needs to obtain status information about the first and second pipelines 104, 108, such as whether the pipelines are unobstructed or leak-free.

[0060] After acquiring the liquid level and pipeline status information, the control system analyzes this data. This analysis primarily involves determining whether the current liquid level meets water supply requirements, such as whether it is below a preset low-level threshold; analyzing whether the pipeline status is normal, such as whether there are blockages or leaks; and predicting future liquid level trends and whether the water replenishment pump 106 needs to be activated in advance.

[0061] Based on the above analysis results, the control system dynamically adjusts the operating status of the water replenishment pump 106. This adjustment method includes at least starting the corresponding water replenishment pump 106 when the liquid level in the first water tank 100 or the second water tank 102 falls below a preset low liquid level threshold, drawing water from an external water source and injecting it into the water tank. If a pipeline is clogged or leaking, the control system suspends the operation of the water replenishment pump 106 and issues an alarm signal to facilitate timely repair. The control system can also start the water replenishment pump 106 in advance to perform a pre-water supply operation based on prediction results to ensure sufficient water supply before the water tank liquid level drops.

[0062] By acquiring real-time information about liquid levels and pipeline status, the control system can quickly respond and adjust the operating status of the water supply pump 106, ensuring stable operation of the water supply system. The control system can make intelligent decisions based on data analysis, such as pre-starting the water supply pump 106 to pre-supply water, thereby enhancing the intelligence of the water supply system.

[0063] According to one embodiment of the present invention, a gravity water supply valve 110 is connected between the first pipeline 104 and the second pipeline 108; the step of adjusting the working state of the water supply pump 106 based on the liquid level information and / or status information includes: when the second pipeline 108 on the first water tank 100 fails, water is supplied to the water-using equipment through the second pipeline 108 on the second water tank 102; or, when the second pipeline 108 on the first water tank 100 and the second water tank 102 fails, water is supplied to the water-using equipment through the gravity water supply valve 110 or the water supply pump 106; or, when the liquid level of the first water tank 100 is lower than the first threshold value, water is supplied to the first water tank 100 from the second water tank 102 through the first pipeline 104.

[0064] It can be understood that, in this step, for several different situations, the water supply method may include at least the following different control modes.

[0065] Conventional water supply: water is supplied directly to water-using equipment through the second pipeline 108.

[0066] Emergency water supply 1: When the first water supply pump 112 of the first water tank 100 fails, the pressurized water supply of the second water supply pump 114 can be achieved by operating the switch of the second water supply pump 114.

[0067] Emergency water supply 2: When both the first water supply pump 112 and the second water supply pump 114 fail, the water supply by the make-up pump 106 can be controlled to switch between the functions of the second water supply pump 114 to achieve pressurized water supply by the make-up pump 106.

[0068] Emergency water supply three: When the first water supply pump 112, the second water supply pump 114, and the make-up water pump 106 all fail, gravity water supply can be achieved by operating the gravity water supply valve 110 to open it.

[0069] Emergency water supply 4: When the rail vehicle has no power, the gravity water supply valve 110 can be manually operated to achieve water supply.

[0070] Conventional water replenishment: When the liquid level in the first water tank 100 is low, the water replenishment pump 106 automatically starts to pump water from the second water tank 102 to the first water tank 100 until the first water tank 100 is full of water and stops automatically.

[0071] Emergency water replenishment: When the first water supply pump 112 fails and the water-using equipment on the vehicle requires pressure water supply, the solenoid valve 118 can be controlled to open to enable the first water tank 100 to replenish water to the second water tank 102.

[0072] Pipeline draining: When the vehicle is parked outside the garage for a short period of time due to a power outage in winter, the first pipeline 104 and the second pipeline 108 can be drained.

[0073] Emptying the entire vehicle: When the vehicle is parked outside the garage for a long time in winter, or the vehicle is not used for a long time, the first water tank 100, the second water tank 102 and the emptying valve 120 can be operated simultaneously to drain the water.

[0074] Water-saving mode: Under special circumstances, when the first water tank 100 and the second water tank 102 have insufficient water, the water-saving mode can be enabled to only ensure water for drinking water and toilet flushing.

[0075] A third aspect of the present invention provides a rail vehicle comprising the water supply system as described above.

[0076] According to the third aspect of the present invention, a rail vehicle provided by an embodiment integrates an efficient and reliable water supply system, ensuring that passengers have access to clean drinking water at all times during their journey. The water supply system utilizes a dual water tank design and parallel piping configuration, ensuring a continuous and stable water supply. Even in the event of a component failure, the system can quickly switch to a backup mode, preventing water supply interruptions.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A water supply system, characterized in that: include: A first water tank is installed above the interior roof of the rail vehicle; The second water tank is installed under the rail vehicle; a first pipeline, fluidically connected to the first water tank and the second water tank, wherein a water supply pump is provided on the first pipeline, and the second water tank is adapted to supply water to the first water tank through the water supply pump; a second pipeline in fluid communication with a water-using device in the rail vehicle, the second pipeline being connected in parallel to the first pipeline and in fluid communication with the first water tank and the second water tank, a gravity water supply valve being connected between the first pipeline and the second pipeline; A third pipeline is further connected between the first water tank and the second water tank, and a solenoid valve is connected between the second pipeline and the third pipeline, and the first water tank is suitable for replenishing water to the second water tank through the solenoid valve; The water supply method of the water supply system comprises: Obtaining liquid level information of the first water tank and the second water tank and / or obtaining status information of the first pipeline and the second pipeline; adjusting the working state of the water supply pump based on the liquid level information and / or the state information; Wherein, the step of adjusting the working state of the water supply pump based on the liquid level information and / or the state information includes: When the second pipe on the first water tank fails, water is supplied to the water-using equipment through the second pipe on the second water tank; Alternatively, when the second pipeline on the first water tank or the second water tank fails, water is supplied to the water-using equipment through the gravity water supply valve or the water supply pump; Alternatively, when the liquid level of the first water tank is lower than a first threshold, the second water tank replenishes water to the first water tank through the first pipeline.

2. The water supply system according to claim 1, characterized in that A first water supply pump is provided between the second pipeline and the first water tank, and a second water supply pump is provided between the second pipeline and the second water tank.

3. The water supply system according to any one of claims 1 to 2, characterized in that: The first pipeline is also provided with a drain valve.

4. The water supply system according to any one of claims 1 to 2, characterized in that: There are multiple first water tanks, the multiple first water tanks are fluidically connected via a first connecting pipe and the multiple first water tanks are constantly connected to the atmosphere via a first connecting air pipe; There are multiple second water tanks, and the multiple second water tanks are fluidically connected through a second connecting pipe and are always connected to the atmosphere through a second connecting air pipe.

5. The water supply system according to claim 4, characterized in that: Water filling ports are provided on both the first water tank and the second water tank along the width direction of the rail vehicle.

6. A rail vehicle, characterized in that: Comprising the water supply system according to any one of claims 1 to 5.

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