CN-122013847-A - Pneumatic constant-pressure water supply and pressurizing water supply system

CN122013847ACN 122013847 ACN122013847 ACN 122013847ACN-122013847-A

Abstract

The application relates to a pneumatic constant-pressure water supply and pressurizing water supply system, and belongs to the technical field of water supply systems. The electronic control unit is connected with the pressure sensor, the first electromagnetic valve, the second electromagnetic valve, the ventilation electromagnetic valve, the flushing switch and the flushing electromagnetic valve, the pressure sensor is arranged on the clean water tank, the first electromagnetic valve is connected with the air inlet of the pressure tank to provide pressure air for the pressure tank, the second electromagnetic valve is connected with the air inlet of the clean water tank to provide pressure air for the clean water tank, the ventilation electromagnetic valve is arranged on the clean water tank, the one-way valve is arranged in a pipeline connecting the clean water tank and the pressure tank and is used for preventing water in the clean water tank from being fed into the pressure tank from flowing back, the electronic control unit acquires a pressure change signal in the clean water tank and controls the on-off of the second electromagnetic valve, the electronic control unit acquires a flushing switch signal and controls the on-off of the flushing electromagnetic valve, the flushing electromagnetic valve is arranged on the excrement collector and is used for controlling flushing of the excrement collector, and the pneumatic control unit supplies air to the clean water tank and the pressure tank through the electromagnetic valve and keeps the pressure constant.

Inventors

CHAI FUJI
XU XIAOKUN
HE XIRONG
Lv Zhaoyuan
CHAI RONG

Assignees

青岛依德客科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260212

Claims (8)

1. The pneumatic constant-pressure water supply and pressurization water supply system is characterized by comprising a clear water tank, a pressure tank, an electric control unit and an air control unit, wherein the air control unit is used for providing constant-pressure water supply for a basin and providing pressurization water supply for a toilet collector; The pneumatic control unit comprises an air source, a first pressure reducing valve, a pressure switch, a second pressure reducing valve, a first electromagnetic valve and a second electromagnetic valve, wherein the first pressure reducing valve is connected with the pressure tank through the first electromagnetic valve to provide air pressure for the pressure tank, and the second pressure reducing valve is connected with the clear water tank through the second electromagnetic valve to provide air pressure for the clear water tank; The clean water tank comprises a first air inlet, a first water outlet, a water filling port, a water filling ball valve, a water draining ball valve and a ventilation electromagnetic valve, and the first air inlet is connected with the pneumatic control unit; the first water outlet is connected with the hand basin and used for providing normal-pressure hand washing water for a water tap of the hand basin, and the first water outlet is connected with the pressure tank through a one-way valve and used for preventing water supplied by the clean water tank to the pressure tank from flowing back; The pressure tank is used for storing water and pressurizing the water and comprises a water inlet and a water outlet and a second air inlet, the second air inlet is connected with the air source through a second electromagnetic valve, one end of the water inlet and the water outlet is connected to a first water outlet of the clear water tank through a one-way valve, and the other end of the water inlet and the water outlet is connected to the excrement collector; The excrement collector comprises a flushing switch and a flushing electromagnetic valve, the flushing switch starts the excrement collector to flush and drain, the flushing electromagnetic valve is connected with a water inlet and a water outlet of the pressure tank, the flushing electromagnetic valve is opened, and meanwhile, the first electromagnetic valve is opened to provide air pressure for the pressure tank; The electronic control unit is connected with the pressure sensor, the first electromagnetic valve, the second electromagnetic valve, the ventilation electromagnetic valve, the flushing electromagnetic valve and the flushing switch, the ventilation electromagnetic valve is arranged on the clean water tank and used for controlling the clean water tank to be communicated with the atmosphere, and the electronic control unit acquires a pressure change signal in the clean water tank and controls the on-off of the second electromagnetic valve; The automatic exhaust valve is arranged on the water supply pipeline of the hand basin and is used for exhausting air in the water supply pipeline and communicating the water supply pipeline with the atmosphere when water supply is stopped.
2. The pneumatic constant pressure water supply and pressurized water supply system according to claim 1, wherein: the electronic control unit is configured to: acquiring the upper limit threshold value P1 of the detection pressure of the pressure sensor and the pressure value P2 after the clear water tank supplies water to the wash basin and the pressure tank, when And when the pressure sensor detects that the pressure in the clean water tank reaches the upper pressure limit threshold value P1, the second electromagnetic valve is closed.
3. A pneumatic constant pressure water supply and booster water supply system as claimed in claim 1 or 2, wherein: The pressure tank is internally provided with a diaphragm, when the flushing switch of the excrement collector is pressed, the flushing electromagnetic valve is electrically opened, meanwhile, the first electromagnetic valve is electrically opened, and compressed air enters the pressure tank to generate pressurized water to flush the excrement collector.
4. The pneumatic constant pressure water supply and pressurized water supply system according to claim 1, wherein: The one-way valve can be opened from the clean water tank to the direction of the pressure tank, the pressure tank is in a full water state in a normal standby state, and after the water in the pressure tank is flushed, the one-way valve is opened, and the clean water tank automatically supplements water for the pressure tank.
5. The pneumatic constant pressure water supply and pressurization water supply system as set forth in claim 1, wherein an automatic exhaust valve is disposed in the water supply line between the clean water tank and the basin, the automatic exhaust valve being used for controlling the exhaust of air in the clean water tank to the basin water supply line.
6. The pneumatic constant pressure water supply and booster water supply system as set forth in claim 1, wherein said vent solenoid valve is in a closed state in a normal standby state and is in an open state when the system is performing an antifreeze evacuation function or in a non-electric state.
7. The pneumatic constant pressure water supply and pressurization water supply system according to claim 1, wherein the electric control unit comprises an antifreezing emptying switch; when the antifreezing emptying switch is turned on, the control unit controls the second electromagnetic valve to be closed, the ventilation electromagnetic valve is turned on, compressed air in the clean water tank is discharged, the automatic exhaust valve is communicated with the atmosphere, water in a water supply pipeline of the clean water tank flows back to the clean water tank, the excrement collector is flushed for two times, and water in the pressure tank is discharged; When the antifreezing emptying switch is closed, the control unit controls the vent electromagnetic valve to be opened, the automatic vent valve is communicated with the atmosphere, and water in the water supply pipeline of the clean water tank flows back to the clean water tank.
8. The pneumatic constant pressure water supply and pressurized water supply system according to claim 1, wherein the clean water tank further comprises a water outlet, the water injection port can be externally connected with a water source for injecting clean water into the clean water tank, and the water outlet is provided with a water discharge ball valve for discharging water from the clean water tank.

Description

Pneumatic constant-pressure water supply and pressurizing water supply system Technical Field The application relates to the technical field of control of water supply sanitation systems, in particular to a pneumatic constant-pressure water supply and pressurizing water supply system. Background Common faults of the water supply sanitary system for the railway passenger car comprise pressure switch failure, electromagnetic valve leakage, water supply failure of a water pump and the like, and the normal water use of the train and the use of a toilet are seriously affected. The clear water tank is used for supplying clear water to water equipment on the vehicle, the water pump is a key component for generating water pressure, the water supply pressure is unstable due to the failure of the water pump, and the water equipment on the vehicle can be used without water. The water supply system fault directly affects the normal use of the excrement collecting system, and the severity of the water supply system fault often exceeds the fault of the excrement collecting system. Most of the clear water tank is arranged under the train, maintenance and replacement of parts are very troublesome, maintenance cannot be performed in the operation process of the train, maintenance can only be performed when the train is stopped, the maintenance space under the train is limited, the skirt board of the train is required to be removed under most conditions, the maintenance and replacement of the water pump are required to be performed, the clear water tank is required to be emptied, the water source is wasted, the maintenance is very difficult, and the maintenance work is about 2 to 3 hours at one time, and even the on-time operation of the train is influenced. The fault factors of the clear water tank mainly comprise water pump faults, liquid level switch faults and the like. And whether the water supply pressure of the clear water tank is stable or not can reflect the main performance index of the water supply system, and the constant pressure water supply system is an effective technical scheme for solving the water supply problem of the train. Disclosure of Invention Aiming at the problems of unstable water supply and difficult maintenance of a clean water tank water pump in the conventional water supply sanitary system of the railway vehicle, the pneumatic constant-pressure water supply and pressurizing water supply system is provided. By implementing the detection of the pressure of the clean water tank, the abnormality of the water supply pressure can be detected, the external constant pressure water supply of the clean water tank is ensured, and the failure rate is reduced. In order to achieve the above purpose, the application provides a pneumatic constant-pressure water supply and pressurizing water supply system. The pneumatic constant-pressure water supply and pressurization water supply system comprises a clear water tank, a pressure sensor, a ventilation electromagnetic valve, a one-way valve, an automatic exhaust valve, an electric control unit and an air control unit; The pneumatic control unit comprises an air source, a first pressure reducing valve, a pressure switch, a second pressure reducing valve, a first electromagnetic valve and a second electromagnetic valve, wherein the first pressure reducing valve is connected with the pressure tank through the first electromagnetic valve to provide air pressure for the pressure tank, and the second pressure reducing valve is connected with the clear water tank through the second electromagnetic valve to provide air pressure for the clear water tank; The clean water tank comprises a first air inlet, a first water outlet, a water filling port, a water filling ball valve, a water draining ball valve and a ventilation electromagnetic valve, wherein the first air inlet is connected with a pneumatic control unit; The pressure tank is used for storing water and pressurizing the water and comprises a water inlet and a water outlet and a second air inlet, the second air inlet is connected with the air source through a second electromagnetic valve, one end of the water inlet and the water outlet is connected to a first water outlet of the clear water tank through a one-way valve, and the other end of the water inlet and the water outlet is connected to the excrement collector; The excrement collector comprises a flushing switch and a flushing electromagnetic valve, the flushing switch starts the excrement collector to flush and drain, the flushing electromagnetic valve is connected with a water inlet and a water outlet of the pressure tank, the excrement collector is opened by the flushing electromagnetic valve, and the first electromagnetic valve is opened to provide air pressure for the pressure tank; The electronic control unit is connected with the pressure sensor, the first electromagnetic valve, the second electromagnetic valve, the ventilation electromagnetic valve, th