Train water tank filling control device and method

Abstract

The present invention relates to a train water tank filling control device, comprising a water tank, which is arranged on each carriage of a train, the water tank having a water filling port, and a water level sensor is also provided in the water tank; a water filling device, which is arranged on a platform, and the water filling device has a docking port that can automatically dock with the water filling port; a water inlet solenoid valve, which is arranged on the water filling port and is used to open and close the water filling port; a pressure sensor, which is arranged on the water filling port and is located upstream of the water inlet solenoid valve and is used to detect water pressure; and a controller, which is electrically connected to the water level sensor, the water inlet solenoid valve, and the pressure sensor. The train water tank filling control device of the present invention can realize automatic control of water filling, avoid human operational errors, and save manpower. At the same time, the controller can also accurately control the water injection amount based on the detection of the water injection level by the liquid level sensor in the water tank, so that overflow will not occur, thus saving water resources. The present invention also relates to a water injection control method of the train water tank filling control device.

Description

Technical Field

[0001] The invention relates to a train water tank water filling control device and also to a train water tank water filling control method. Background Art

[0002] Trains use either atmospheric or pressurized water tanks to supply water to vehicles. Refilling the tanks requires manual operation by opening the valves on the water filling lines. To refill an atmospheric water tank, connect the water filling device to the tank's inlet port, open the manual ball valve, and begin filling until water flows out of the overflow port. Then, close the water filling device and the tank's ball valve. To refill a pressurized water tank, connect the water filling device to the tank's inlet port, turn a special valve on the tank to cut off the compressed air, and release the pressure from the tank by opening the water tank to the atmosphere. Then, open the water filling device and the tank's ball valve and begin filling until water flows out of the overflow port. Then, close the water filling device and the tank's ball valve.

[0003] The above water filling method has the following problems: 1. The water tank in each carriage needs to be repeatedly replenished with water; 2. Incorrect manual operation sequence may cause harm to equipment or personnel; 3. Manual operation is slow and cannot be realized intelligently; 4. Overflow of clean water wastes water resources. Summary of the Invention

[0004] The first technical problem to be solved by the present invention is to provide a train water tank water filling control device that can realize automatic water filling, avoid human operating errors, save manpower and water resources based on the above-mentioned existing technology.

[0005] The second technical problem to be solved by the present invention is to provide a water filling method for the aforementioned train water tank water filling control device in response to the above-mentioned prior art.

[0006] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a train water tank water filling control device, characterized in that it includes:

[0007] A water tank is provided on each carriage of the train, the water tank having a water inlet and a water level sensor;

[0008] A water injection device is provided on the platform, and the water injection device has a docking port that can automatically dock with the water injection port;

[0009] A water inlet solenoid valve is provided on the water inlet and is used to open and close the water inlet;

[0010] A pressure sensor is provided on the water inlet and upstream of the water inlet solenoid valve, and is used to detect water pressure;

[0011] The controller is respectively connected with the water level sensor, the water inlet solenoid valve and the pressure sensor via electrical signals.

[0012] Optionally, the water tank is a normal pressure water tank or a pressurized water tank. When the water tank is a pressurized water tank, the pressurized water tank is further provided with a pressurized solenoid valve connected to the controller electrical signal.

[0013] Preferably, the water filling port of the water tank is connected to a water filling pipe; the docking port of the water filling device is connected to a docking tube; matching magnetic parts are provided on the docking end faces of the water filling pipe and the docking tube, and the external thread of the docking tube is connected to a nut that can be threadedly connected to the water filling pipe, and the water filling device also includes a driving mechanism for driving the nut to rotate.

[0014] The structure is simple. Meshing teeth are provided on the outer peripheral wall of the nut. The driving mechanism includes a motor and a driving gear set connected to the driving end of the motor. The driving gear set meshes with the meshing teeth outside the nut.

[0015] In order to ensure the sealing performance of the water injection pipe and the butt joint, a sealing gasket is provided on the butt end surfaces of the water injection pipe and the butt joint.

[0016] Optionally, the water injection device is built into the platform corresponding to the stop position of the train, and the water injection device has a plurality of docking ports respectively docked with the water injection ports on each carriage;

[0017] Alternatively, the water injection device is arranged on a movable carrying device, and the docking port of the water injection device can be extended to the water injection port position of the train in the platform.

[0018] The technical solution adopted by the present invention to solve the above second technical problem is: a water injection control method of the train water tank water injection control device as described above, characterized in that it includes the following steps:

[0019] Step 1: The water injection equipment is working, and the docking port of the water injection equipment is connected to the water injection port of the water tank;

[0020] Step 2: Control the water supply of the water injection device. The controller controls the opening of the water inlet solenoid valve according to the water pressure signal detected by the pressure sensor, and the water injection device injects water into the water tank.

[0021] Step 3: When the water level in the water tank reaches the set maximum water level, the controller controls the closing of the water inlet solenoid valve according to the water level detection signal of the water level sensor, and at the same time controls the water filling equipment to stop supplying water, thereby completing the water filling work of the water tank.

[0022] When the water filling equipment is installed on the transport equipment, the water tanks of each carriage can be filled with water in sequence according to the above steps. If the water filling equipment is built into the platform, the water filling work of each carriage can be completed at one time according to the above steps.

[0023] Preferably, when the water tank is a pressurized water tank, before controlling the opening of the water inlet solenoid valve, the controller controls the closing of the pressurization solenoid valve, cuts off the air source connected to the pressurization solenoid valve, realizes the communication between the water tank and the atmosphere and relieves the pressure in the water tank; when the water tank and the atmosphere achieve air pressure balance, the water inlet solenoid valve is controlled to open; after completing the water filling work of the water tank, the controller controls the opening of the pressurization solenoid valve again to realize the communication between the air source and the water tank, and at the same time cuts off the connection between the water tank and the atmosphere, and the air source connected to the pressurization solenoid valve injects compressed air into the water tank until the set air pressure is reached.

[0024] Compared with the existing technology, the advantages of the present invention are: the present invention is provided with electrical components such as a pressure sensor, a water inlet solenoid valve, and a liquid level switch. Through electrical signal connection with the controller, the controller can automatically open the water inlet solenoid valve based on the water pressure detection of the pressure sensor, thereby achieving automated control of water injection, avoiding human error and saving manpower. At the same time, the controller can also accurately control the water injection amount based on the detection of the water injection level by the liquid level sensor in the water tank, preventing overflow and saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the structure of the train water tank filling control device in an embodiment of the present invention.

[0026] Figure 2 Schematic diagram of the docking structure of the butt joint pipe and the water supply pipe in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0028] like Figure 1 As shown, the train water tank filling control device in this embodiment includes a water tank 1, a water level sensor 2, a water filling device 3, a water inlet solenoid valve 4, a pressure sensor 5, and a controller 6.

[0029] The water tank 1 is set on each carriage of the train. Based on the different types of trains, the type of water tank 1 installed on the carriage can also be different. The water tank 1 can be a normal pressure water tank or a pressurized water tank. When the water tank 1 is a pressurized water tank, the pressurized water tank is also provided with a pressurized solenoid valve 11 connected to the electrical signal of the controller 6. The pressurized solenoid valve 11 is connected to the air source on the train. By turning the pressurized solenoid valve 11 on and off, the connection between the water tank 1 and the air source and the outside atmosphere can be switched. Specifically, when the pressurized solenoid valve 11 is opened, the pressurized water tank is connected to the air source, and when the pressurized solenoid valve 11 is closed, the connection between the pressurized water tank and the air source is disconnected. The pressurized water tank can be connected to the outside atmosphere based on the special structure of the pressurized solenoid valve 11, thereby making the air pressure in the pressurized water tank slowly approach the atmospheric pressure.

[0030] The water tank 1 has a water inlet. To facilitate connection between the inlet and the water filling device 3, a water inlet pipe 12 is typically connected to the inlet. A water level sensor 2 is also provided within the water tank 1. This sensor is used to detect the water level within the water tank 1. The sensor 2 can be any of a variety of conventional water level sensors, such as a real-time water level sensor or a water level switch located at a set water level. In this embodiment, the sensor 2 is simply a water level switch located at the highest water level within the water tank 1.

[0031] The water injection device 3 is arranged on the platform, and the water injection device 3 has a docking port that can be automatically docked on the water injection port.

[0032] The specific configuration of the water injection device 3 can be determined based on the specific conditions of the platform. For example, for a mature platform already in operation, the device can be installed on a movable transport device such as a battery car. The transport device can be moved on the platform to the position corresponding to the train stop, thereby connecting to the water injection port on each carriage to achieve water injection. To facilitate docking with the water injection port on the carriage, the docking port of the water injection device 3 can be extended to the water injection port location of the train on the platform.

[0033] For platforms that are still in the design stage and have not been built, it is possible to consider building the water injection equipment 3 into the platform corresponding to the train's stop position. The water injection equipment 3 has multiple docking ports that are respectively docked with the water injection ports on each carriage. In this way, when the train stops at the platform, the docking ports on the water injection equipment 3 are opposite to the water injection ports of each carriage.

[0034] like Figure 2 As shown, specifically, the water inlet of the water tank 1 is connected to a water inlet pipe 12, and the docking port of the water filling device 3 is connected to a docking pipe 31. Matching magnetic components 7 are provided on the docking end surfaces of the water inlet pipe 12 and the docking pipe 31. The water filling device 3 can be provided with a pushing mechanism that can push the docking pipe 31 toward the water inlet pipe 12 to facilitate docking between the two, or the docking pipe 31 on the water filling device 3 can be autonomously moved to the position where it docks with the water inlet pipe 12 based on the magnetic attraction force.

[0035] The external thread of the butt joint 31 is connected to the nut 8 of the water injection pipe 12 which can be threadedly connected. The water injection equipment 3 also includes a driving mechanism 32 for driving the nut 8 to rotate. The outer peripheral wall of the nut 8 is provided with meshing teeth. The driving mechanism 32 includes a motor 321 and a driving gear set 322 connected to the driving end of the motor 321. The driving gear set 322 meshes with the meshing teeth on the outside of the nut 8. In this way, when the water injection pipe 12 and the butt joint 31 are fitted together based on the mutual attraction of the magnetic element 7. The driving mechanism 32 works, driving the nut 8 to move toward the water injection pipe 12, and then screwed to the water injection pipe 12. In this way, a reliable connection between the two is achieved through the connection of the nut 8 with the butt joint 31 and the water injection pipe 12 respectively.

[0036] In addition, in order to ensure the sealing performance of the connection between the water injection pipe 12 and the butt joint pipe 31 , a sealing gasket 9 is provided on the butt joint end surfaces of the water injection pipe 12 and the butt joint pipe 31 .

[0037] The water inlet solenoid valve 4 is arranged on the water inlet and is used to open and close the water inlet.

[0038] The pressure sensor 5 is arranged on the water inlet and upstream of the water inlet solenoid valve 4 for detecting water pressure.

[0039] The controller 6 is electrically connected to the water level sensor 2 , the water inlet solenoid valve 4 , and the pressure sensor 5 .

[0040] The water injection control method of the aforementioned train water tank water injection control device includes the following steps.

[0041] Step 1: The water injection device 3 is put into operation, and the docking port of the water injection device 3 is docked with the water injection port of the water tank 1.

[0042] Step 2: Control the water injection device 3 to supply water. The controller 6 controls the opening of the water inlet solenoid valve 4 according to the water pressure signal detected by the pressure sensor 5 , and the water injection device 3 injects water into the water tank 1 .

[0043] When the water tank 1 is a pressurized water tank, before controlling the opening of the water inlet solenoid valve 4, the controller 6 controls the closing of the pressurization solenoid valve 11, cuts off the air source connected to the pressurization solenoid valve 11, realizes the communication between the water tank 1 and the atmosphere and relieves the pressure in the water tank 1. When the water tank 1 and the atmosphere achieve air pressure balance, the water inlet solenoid valve 4 is controlled to open; after completing the water filling work of the water tank 1, the controller 6 controls the opening of the pressurization solenoid valve 11 again to realize the communication between the air source and the water tank 1, and at the same time cuts off the connection between the water tank 1 and the atmosphere. The air source connected to the pressurization solenoid valve 11 injects compressed air into the water tank 1 until the set air pressure is reached.

[0044] Step 3: When the water level in the water tank 1 reaches the set maximum water level, the controller 6 controls the closing of the water inlet solenoid valve 4 according to the water level detection signal of the water level sensor 2, and controls the water injection equipment 3 to stop supplying water, thereby completing the water injection work of the water tank 1.

[0045] When the water filling device 3 is set on the transport equipment, the water filling work of the water tank 1 of each carriage can be carried out in sequence based on the above steps. If the water filling device 3 is built into the platform, the water filling work of each carriage can be completed at one time based on the above steps.

[0046] The train water tank filling control device of the present invention is equipped with electrical components such as a pressure sensor 5, a water inlet solenoid valve 4, and a liquid level switch. These components are connected to the controller 6 through electrical signals. The controller 6 can then automatically open the water inlet solenoid valve 4 based on the water pressure detected by the pressure sensor 5, thereby achieving automated control of water filling, avoiding human operational errors and saving manpower. At the same time, the controller 6 can also accurately control the water filling amount based on the detection of the water filling liquid level by the water level sensor 2 in the water tank 1, preventing overflow and saving water resources.

[0047] In the present specification and claims, directional terms such as "front," "back," "up," "down," "left," "right," "side," "top," and "bottom" are used to describe various exemplary structural parts and components of the present invention. However, these terms are used herein for convenience of description only and are based on the exemplary orientations shown in the accompanying drawings. Because the embodiments disclosed herein can be arranged in various orientations, these directional terms are intended for illustrative purposes only and should not be construed as limiting. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A train water tank filling control device, characterized by: include A water tank (1) is provided on each carriage of the train, the water tank (1) having a water inlet, and a water level sensor (2) is also provided in the water tank (1); A water injection device (3) is provided on the platform, wherein the water injection device (3) has a docking port that can automatically dock with the water injection port; A water inlet solenoid valve (4) is provided on the water inlet and is used to open and close the water inlet; A pressure sensor (5) is provided on the water inlet and upstream of the water inlet solenoid valve (4) for detecting water pressure; The controller (6) is electrically connected to the water level sensor (2), the water inlet solenoid valve (4), and the pressure sensor (5); The water inlet of the water tank (1) is connected to a water inlet pipe (12); the docking port of the water inlet device (3) is connected to a docking pipe (31); matching magnetic components (7) are provided on the docking end surfaces of the water inlet pipe (12) and the docking pipe (31); the docking pipe (31) is externally threadedly connected to a nut (8) that can be threadedly connected to the water inlet pipe (12); and the water inlet device (3) further comprises a driving mechanism (32) for driving the nut (8) to rotate; The outer peripheral wall of the nut (8) is provided with meshing teeth, and the driving mechanism (32) includes a motor (321) and a driving gear set (322) connected to the driving end of the motor (321), and the driving gear set (322) is meshed with the meshing teeth outside the nut (8).

2. The train water tank filling control device according to claim 1, characterized in that: The water tank (1) is a normal pressure water tank or a pressurized water tank. When the water tank (1) is a pressurized water tank, a pressurized solenoid valve (11) electrically connected to the controller (6) is further provided on the pressurized water tank.

3. The train water tank filling control device according to claim 1, characterized in that: Sealing pads (9) are provided on the butting end surfaces of the water injection pipe (12) and the butt-joint pipe (31).

4. The train water tank filling control device according to any one of claims 1 to 3, characterized in that: The water injection device (3) is built into the platform corresponding to the stop position of the train, and the water injection device (3) has a plurality of docking ports respectively docked with the water injection ports on each carriage; Alternatively, the water injection device (3) is arranged on a movable carrier, and the docking port of the water injection device (3) can extend to the water injection port position of the train in the platform.

5. A water filling control method for a train water tank water filling control device according to any one of claims 2 to 4, characterized in that: The following steps are involved: Step 1: The water injection device (3) is put into operation, and the docking port of the water injection device (3) is docked with the water injection port of the water tank (1); Step 2: Control the water supply of the water injection device (3). The controller (6) controls the opening of the water inlet solenoid valve (4) according to the water pressure signal detected by the pressure sensor (5). The water injection device (3) injects water into the water tank (1). Step 3: When the water level in the water tank (1) reaches the set maximum water level, the controller (6) controls the closing of the water inlet solenoid valve (4) according to the water level detection signal of the water level sensor (2), and controls the water injection device (3) to stop supplying water, thereby completing the water injection work of the water tank (1).

6. The water injection control method according to claim 5, characterized in that: When the water tank (1) is a pressurized water tank, before the water inlet solenoid valve (4) is controlled to be opened, the controller (6) controls the closing of the pressurizing solenoid valve (11), cuts off the air source connected to the pressurizing solenoid valve (11), and realizes that the water tank (1) is connected to the atmosphere and the pressure in the water tank (1) is relieved. When the water tank (1) and the atmosphere achieve air pressure balance, the water inlet solenoid valve (4) is controlled to be opened. After the water filling work of the water tank (1) is completed, the controller (6) controls the opening of the pressurizing solenoid valve (11) again, realizes that the air source and the water tank (1) are connected, and at the same time cuts off the connection between the water tank (1) and the atmosphere. The air source connected to the pressurizing solenoid valve (11) injects compressed air into the water tank (1) until the set air pressure is reached.

Images