CN215857454U

CN215857454U - Water flushing system sweeps water trap

Info

Publication number: CN215857454U
Application number: CN202122047381.7U
Authority: CN
Inventors: 彭小洋; 李攀; 范伟; 魏孔河; 李沈
Original assignee: Chengdu Xinyi Drive Technology Co ltd
Current assignee: Chengdu Xinyi Drive Technology Co ltd
Priority date: 2021-08-28
Filing date: 2021-08-28
Publication date: 2022-02-18
Anticipated expiration: 2031-08-28

Abstract

A water flushing system purging and dewatering device comprises a water tank, a water drain valve, a main loop water pipeline, an electric ball valve, a purging pipeline, a speed regulating valve, a pressure sensor, a barometer, a pressure regulating valve, an air filter, an electromagnetic valve and a high-pressure air source; one end of the main loop water pipeline is connected with the water tank, and a water drain valve and an electric ball valve are arranged on the main loop water pipeline; one end of the purging pipeline is connected with the main loop water pipeline, the other end of the purging pipeline is connected with the high-pressure air source, and an electromagnetic valve, an air filter, a pressure regulating valve, a pressure sensor, a barometer and a speed regulating valve are sequentially arranged on the purging pipeline and between the high-pressure air source and the purging pipeline. The purging and dewatering device is used for sending high-pressure gas with constant pressure and flow into the main loop water pipeline through compressed air provided by a high-pressure air source and after the pressure and the flow control of the pressure regulating valve and the speed regulating valve, purging and dewatering operation is carried out to drain residual water in the main loop water pipeline, and low-temperature icing and freezing damage to equipment of a water washing system are prevented.

Description

Water flushing system sweeps water trap

The technical field is as follows:

the utility model relates to the technical field of energy-saving and environment-friendly cleaning of rail transit subway tunnels, in particular to the technical field of anti-freezing equipment of subway tunnel cleaning vehicles, and specifically relates to a purging and dewatering device of a water flushing system.

Background art:

the subway is a rapid, large-traffic and electric power traction rail transit built in cities. The train runs on a totally closed line, the line located in the central urban area is basically arranged in the underground tunnel, and the line outside the central urban area is generally arranged on a viaduct or the ground. The operation environment of the subway tunnel not only influences the beautiful environment in the subway tunnel, but also threatens the driving safety of the subway vehicles. Therefore, the cleaning work in the subway tunnel is very heavy and important.

At present, a subway tunnel cleaning vehicle is generally adopted in a subway tunnel for cleaning. When the subway tunnel cleaning vehicle is operated in autumn, winter and early spring in the north of China, the subway tunnel cleaning vehicle is usually in a low-temperature environment of-20 ℃ to-5 ℃. During operation, due to the fluidity of the water body and the heat preservation property in the tunnel, the low-temperature icing phenomenon of a flushing system and the interior of a pipeline is not caused generally; however, after the operation is completed, if the subway tunnel cleaning vehicle is exposed to a low-temperature environment condition with the air temperature below 0 ℃ and is parked overnight, the residual water in the water pumps, the pipelines and the connecting valves of all the water flushing systems is frozen, and even the hard pipes and the hoses of the water pumps, the valves and the pipelines are frozen and expanded to be damaged in serious conditions, so that certain economic loss is caused to the country, a normal subway tunnel cleaning operation plan is influenced, and the normal maintenance and operation of the subway tunnel is interfered.

The utility model has the following contents:

in order to solve the defects, the utility model provides a purging and dewatering device of a water flushing system, which is used for meeting the requirements of low-temperature operation and storage of a subway tunnel cleaning vehicle.

In order to solve the problems, the utility model adopts the technical scheme that:

the utility model provides a purging and dewatering device of a water washing system, which comprises a water tank, a water drain valve, a main loop water pipeline, an electric ball valve, a purging pipeline, a speed regulating valve, a pressure sensor, a barometer, a pressure regulating valve, an air filter, an electromagnetic valve and a high-pressure air source, wherein the water tank is connected with the water drain valve; one end of the main loop water pipeline is connected with the water tank, and a water drain valve and an electric ball valve are arranged on the main loop water pipeline; one end of the purging pipeline is connected with the main loop water pipeline, the other end of the purging pipeline is connected with the high-pressure air source, and an electromagnetic valve, an air filter, a pressure regulating valve, a pressure sensor, a barometer and a speed regulating valve are sequentially arranged on the purging pipeline and between the high-pressure air source and the purging pipeline.

The water drain valve comprises a first water drain valve, a second water drain valve, a third water drain valve and a fourth water drain valve.

The high-pressure air source adopts an energy accumulator, and a vehicle-mounted air compressor provides compressed air.

The purging and dewatering device can omit a pressure regulating valve and a speed regulating valve and adopt a pressure flow proportional valve.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model supplies compressed air from high pressure source, through pressure and flow control of pressure regulating valve and speed regulating valve, sends high pressure gas with constant pressure and flow into main loop water pipe, and carries out purging and dewatering operation, so as to achieve the purpose of draining residual water in main loop water pipe. The utility model has the characteristics of high working efficiency, good dewatering effect and the like, and is particularly shown in the following steps:

first, the application range is wide. The utility model is a small modular structure. Due to the modular design structure, the installation, the use and the maintenance are convenient. This sweep water trap is independently for sweeping water removal system unit, both can install and use on subway tunnel washs the car, also can install and use on contact net insulator water washing car and other water washing systems.

And secondly, the operation is simple. The utility model is a one-key control, the control operation function is integrated on the vehicle-mounted control cabinet, and an operator can purge and remove water through an intelligent operation control screen in one key mode to drain residual water in a main loop water pipeline, so that convenience and rapidness are realized.

Thirdly, the water removal is thorough. The utility model adopts high-pressure gas with constant pressure and flow to be sent into the main loop water pipeline for purging and dewatering operation, thereby achieving the purpose of thoroughly draining the residual water in the main loop water pipeline.

And fourthly, relieving anxiety and difficulty. The original drainage technology is automatically drained by a manual and water flushing system, and the problem that the part of residual water locally lower than a water outlet in a pipeline system cannot be drained all the time, so that the system component is frozen due to low-temperature icing is solved.

Description of the drawings:

fig. 1 is a schematic structural view of the present invention.

Reference numerals:

1-a water tank, 2-a first water drain valve, 3-a main loop water pipeline, 4-a second water drain valve, 5-an electric ball valve, 6-a third water drain valve, 7-a fourth water drain valve, 8-a purging pipeline, 9-a speed regulating valve, 10-a pressure sensor and a barometer, 11-a pressure regulating valve, 12-an air filter, 13-an electromagnetic valve and 14-a high-pressure air source.

The specific implementation mode is as follows:

the utility model is further explained with reference to the specific embodiment, and referring to fig. 1, the utility model provides a purging and dewatering device for a water flushing system, which comprises a water tank 1, a water drain valve, a main loop water pipeline 3, an electric ball valve 5, a purging pipeline 8, a speed regulating valve 9, a pressure sensor and a barometer 10, a pressure regulating valve 11, an air filter 12, an electromagnetic valve 13 and a high-pressure air source 14. The water tank 1 is connected to 3 one ends of major loop water pipeling, is provided with on the major loop water pipeling 3 and drains valve, electric ball valve 5, and the valve that drains includes first valve 2 that drains, second valve 4 that drains, third valve 6 that drains and fourth valve 7 that drains. One end of the purging pipeline 8 is connected with the main loop water pipeline 3, the other end of the purging pipeline is connected with the high-pressure air source 14, and an electromagnetic valve 13, an air filter 12, a pressure regulating valve 11, a pressure sensor, a pressure gage 10 and a speed regulating valve 9 are sequentially arranged on the purging pipeline 8 and between the high-pressure air source 14 and the purging pipeline 8. The pressure regulating valve 11 is also called a pressure reducing valve, and can automatically regulate the pressure of the gas flowing through the valve body to reduce the inlet pressure to 0.5MPa of outlet pressure required by the purging and water removing device, and automatically keep the outlet pressure stable by means of the energy of compressed air. A pressure sensor and a barometer 10 are arranged on the purging pipeline 8, wherein the pressure sensor can feed back a pressure parameter signal in the purging pipeline 8 for the control system to adjust the working pressure value of the pressure regulating valve 11; the air pressure meter can visually display the air pressure value of the purging pipeline 8. The speed regulating valve 9 is a combined valve formed by connecting a fixed-differential pressure reducing valve and a throttle valve in series, the throttle valve is used for regulating the passing flow, the fixed-differential pressure reducing valve automatically compensates the influence of load change, the pressure difference between the front and the rear of the throttle valve is a fixed value, the influence of the load change on the flow is eliminated, and thus the flow of high-pressure gas flowing through the speed regulating valve 9 is constant and is not influenced by the load. The high-pressure air source 14 adopts an accumulator and is provided with compressed air by a vehicle-mounted air compressor.

The utility model can cancel the pressure regulating valve 11 and the speed regulating valve 9, and adopt the pressure flow proportional valve to carry out the comprehensive regulation and control to the pressure flow in the purging pipeline 8, the valve core movement of the proportional valve adopts the proportional electromagnet control, so that the output pressure or flow is in direct proportion to the input current, and the pressure and flow can be continuously controlled by changing the input electric signal.

The working principle of the utility model is as follows:

before the purging and water removing device is started by one key, the first water drain valve 2, the second water drain valve 4, the third water drain valve 6 and the fourth water drain valve 7 on the main loop water pipeline 3 of the water washing system are opened in advance, so that all residual water in the main loop water pipeline 3 can be smoothly discharged when the high-pressure gas purges and removes water. High-pressure gas transmission pipe through on-vehicle air compressor and the high-pressure gas source 14 intercommunication that sweeps water trap, a key starts to sweep behind the water trap, electric ball valve 5 and solenoid valve 13 are simultaneously from opening, high-pressure gas in the high-pressure gas source 14 carries out impurity filtering through air cleaner 12, adjust pressure through air-vent valve 11, pressure sensor feedback pressure control signal through pressure sensor and barometer 10, adjust flow through governing valve 9, then with the high-pressure gas of 0.5Mpa of constant pressure and flow get into major loop water pipeline 3 through sweeping pipeline 8 again and sweep the water removal operation, in order to reach the surplus water in the major loop water pipeline 3 of exhaust, prevent that water washing system low temperature from freezing, equipment is by the purpose of freezing out.

In view of the foregoing, it is only intended to illustrate some of the principles of the inventive apparatus and not to limit the utility model to the exact construction and operation shown and described, and accordingly all modifications and equivalents that may be employed fall within the scope of the claims.

Claims

1. The utility model provides a water washing system sweeps water trap which characterized by: the purging and dewatering device comprises a water tank (1), a water drain valve, a main loop water pipeline (3), an electric ball valve (5), a purging pipeline (8), a speed regulating valve (9), a pressure sensor, a barometer (10), a pressure regulating valve (11), an air filter (12), an electromagnetic valve (13) and a high-pressure air source (14); one end of the main loop water pipeline (3) is connected with the water tank (1), and a water drain valve and an electric ball valve (5) are arranged on the main loop water pipeline (3); one end of the purging pipeline (8) is connected with the main loop water pipeline (3), the other end of the purging pipeline is connected with the high-pressure air source (14), and an electromagnetic valve (13), an air filter (12), a pressure regulating valve (11), a pressure sensor, a barometer (10) and a speed regulating valve (9) are sequentially arranged on the purging pipeline (8) and between the high-pressure air source (14) and the purging pipeline (8).

2. The water flushing system purging and water removing device of claim 1, which is characterized in that: the water drain valve comprises a first water drain valve (2), a second water drain valve (4), a third water drain valve (6) and a fourth water drain valve (7).

3. The water flushing system purging and water removing device of claim 1, which is characterized in that: the high-pressure air source (14) adopts an energy accumulator, and a vehicle-mounted air compressor provides compressed air.

4. The water flushing system purging and water removing device of claim 1, which is characterized in that: the purging and dewatering device can also be used for eliminating a pressure regulating valve (11) and a speed regulating valve (9) and adopting a pressure flow proportional valve.