Cooler water supply system capable of preventing sediment deposition

Abstract

The utility model provides a cooler water supply system capable of preventing sediment deposition. The cooler water supply system mainly comprises a four-way valve, a water supply pipe, a drainage pipe and a branch pipe. Four interfaces of the four-way valve are respectively connected with the water supply pipe, the water drainage pipe and the two branch pipes; the connectors connected with the water supply pipe and the water drainage pipe are located at the symmetrical positions of the four-way valve, and the connectors connected with the two branch pipes are also located at the symmetrical positions of the four-way valve; and the other ends of the two branch pipes are respectively connected with two interfaces of the cooler. According to the silt deposition condition in the cooler, the working position of the four-way valve is adjusted, and forward and reverse water supply paths are switched, so that deposited silt possibly existing in the cooler is scoured, the purpose of removing silt and dredging is achieved, the overhaul period of the cooler is prolonged, and equipment is protected. Equipment, pipelines, valves and the like of the water supply system are clear in arrangement principle, operation is easy and reliable, and a reliable sediment deposition prevention water supply scheme can be provided for engineering containing coolers such as electric power, energy and municipal administration.

Description

TECHNICAL FIELD

[0001] The utility model belongs to technical water supply technical field especially, it is related to a kind of cooling device water supply system of preventing silt accumulation, it is applicable to the engineering of power, energy, municipal administration etc. BACKGROUND

[0002] Cooler has many application scenarios, including cooling device and environmental cooling etc.Cooler generally uses water as medium, removes heat in device or environment.For example, large water power station, at least including guide bearing cooler, thrust bearing cooler and generator air cooler etc.Water source of water power station cooler comes from technical water supply system, and its source comes from reservoir area or river course.Part of power station due to large sand content, although technical water supply system has considered sand removing equipment or measure when taking water, but small particle silt inevitably enters water supply system, and it will lead to partial silt accumulation of cooler, influence heat exchange efficiency, and even lead to equipment overheating and shutdown seriously.Therefore, it is necessary to design a kind of simple and effective cooling device water supply system of preventing silt accumulation. SUMMARY

[0003] The utility model aims at providing a kind of cooling device water supply system of preventing silt accumulation, simple structure can be according to silt accumulation to the reverse water supply and flushing of cooler, guarantee the heat exchange efficiency of heat exchanger in water power station.Therefore, the utility model uses following technical scheme:

[0004] A kind of cooling device water supply system of preventing silt accumulation, it is characterized by: the water supply system mainly includes four-way valve, water supply pipe, drain pipe, branch pipe;

[0005] The four interfaces of four-way valve are connected with water supply pipe, drain pipe and 2 branch pipes respectively;The interface of water supply pipe and drain pipe is at the symmetrical position of four-way valve, and the interface of 2 branch pipes is also at the symmetrical position of four-way valve;The other end of the 2 branch pipes is connected with the 2 interfaces of cooler respectively.

[0006] On the basis of using above-mentioned technical scheme, the utility model further can use following further technical scheme, or these further technical schemes are combined for use:

[0007] The cooling device water supply system further includes differential pressure transmitter, and one-way measuring pipeline is led to differential pressure transmitter on water supply pipe and drain pipe;The four-way valve is electric valve;The controller of four-way valve is connected with differential pressure transmitter to obtain the signal of differential pressure transmitter, to control the switching direction of four-way valve.

[0008] Pressure gauge is installed on measuring pipeline, for monitoring the water supply and drainage pressure.

[0009] The water source of the water supply pipe is from a technical water supply system of a hydropower station, and an isolation valve is arranged on the water supply pipe.

[0010] The cooling device water supply system can flush the accumulated silt according to the internal silt accumulation condition of the cooling device, switch the forward and reverse water supply paths by adjusting the working position of the four-way valve, achieve the purpose of desilting and dredging, and thus prolong the maintenance cycle of the cooling device and protect the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a system diagram of the utility model - forward water supply schematic diagram.

[0012] Figure 2 It is a system diagram of the utility model - reverse water supply schematic diagram. DETAILED DESCRIPTION

[0013] The cooling device water supply system can switch the forward and reverse water supply paths according to the internal silt accumulation condition of the cooling device.

[0014] As shown in Figure 1 , Figure 2 , the embodiment is applied to the water supply system of the air cooler of the generator of a certain hydropower station.

[0015] The water supply system of the air cooler of the generator mainly comprises a four-way valve 3, a water supply pipe 2, a drain pipe 5, branch pipes 41 and 42, a differential pressure transmitter 6, pressure gauges 71 and 72, and an isolation valve 1.

[0016] The four-way valve 3 is an electric valve, and a controller of the four-way valve 3 controls the switching direction of the four-way valve. In the embodiment, the controller of the electric valve is connected with the differential pressure transmitter 6 to obtain the signal of the differential pressure transmitter 6, so as to control the switching direction of the four-way valve 3.

[0017] The four interfaces A, C, B and D of the four-way valve 3 are connected with the water supply pipe 2, the drain pipe 5 and the branch pipes 41 and 42 respectively. The water supply pipe 2 and the drain pipe 5 are each provided with a measuring pipe connected to the differential pressure transmitter 6, and the two measuring pipes are provided with the pressure gauges 71 and 72. The water source of the water supply pipe 2 is from a technical water supply system, and the isolation valve 1 is arranged on the water supply pipe 2. The drain pipe 5 is connected to the tail water pipe of the hydropower station or other drainage positions. The branch pipes 41 and 42 are connected with the first water inlet and outlet interfaces E and the second water inlet and outlet interfaces F of the cooling device 8.

[0018] When the water is supplied in the forward direction, the four-way valve 3 is in the position of A and D. Figure 1The cooling water enters the cooler 8 via the water supply pipe 2, the interfaces A and B of the four-way valve 3, the branch pipe 41 and the first inlet and outlet water interface E of the cooler 8. The heat-exchanged cooling water is discharged to the tail pipe or other positions via the second inlet and outlet water interface F of the cooler 8, the branch pipe 42, the interfaces D and C of the four-way valve 3 and the water discharge pipe 5.

[0019] When there is silt accumulation in the cooler 8 or there is a risk of silt accumulation, two modes of switching can be considered. Mode one: timing switching; mode two: switching according to the monitoring of the differential pressure transmitter. The embodiment is based on mode two for principle elaboration.

[0020] When there is silt accumulation in the cooler, the pipe loss in the system will become larger, the monitoring data of the differential pressure transmitter will exceed the set value, triggering the four-way valve to work and switching the position to the reverse water supply direction, that is, Figure 2 The cooling water enters the cooler 8 via the water supply pipe 2, the interfaces A and D of the four-way valve 3, the branch pipe 42 and the second inlet and outlet water interface F of the cooler 8. The heat-exchanged cooling water is discharged to the tail pipe or other positions via the first inlet and outlet water interface E of the cooler, the branch pipe 41, the interfaces B and C of the four-way valve 3 and the water discharge pipe 5.

[0021] By switching the forward and reverse water supply paths, the silt accumulation that may occur in the cooler can be effectively alleviated, the maintenance cycle of the cooler is prolonged, and the service life of the equipment is prolonged. The mode of timing switching is similar, and will not be described in detail.

[0022] The isolation valves shown in the system only illustrate the principle, and the type can be manual or automatic. The automatic operation of the entire system can be realized through automatic control. The embodiment takes the water supply of a single cooler as an example, and other multi-cooler projects can be used according to the actual situation.

[0023] The above only describes specific embodiments of the utility model, but the structural characteristics of the utility model are not limited to this, any person skilled in the art makes changes or modifications in the field of the utility model, which is covered in the protection scope of the utility model.

Claims

1. A silt accumulation preventing water supply system for a cooler, characterized by: The water supply system mainly comprises a four-way valve, a water supply pipe, a drainage pipe and two branch pipes. The four interfaces of the four-way valve are connected with the water supply pipe, the drainage pipe and the two branch pipes respectively; the interfaces connected with the water supply pipe and the drainage pipe are located at the symmetrical positions of the four-way valve, and the interfaces connected with the two branch pipes are also located at the symmetrical positions of the four-way valve; the other ends of the two branch pipes are connected with two interfaces of the cooler respectively.

2. The sand buildup preventing chiller water supply system according to claim 1, characterized by: The water supply system of the cooler further comprises a differential pressure transmitter, and a measuring pipeline is led from the water supply pipe and the drainage pipe to the differential pressure transmitter respectively; the four-way valve is an electric valve; a controller of the four-way valve is connected with the differential pressure transmitter to obtain the signal of the differential pressure transmitter and control the switching direction of the four-way valve.

3. The sand buildup preventing chiller water supply system according to claim 1, characterized by: A pressure gauge is arranged on the measuring pipeline to monitor the water supply and drainage pressure.

4. The sand buildup resistant chiller water system of claim 1, wherein: The water source of the water supply pipe comes from a technical water supply system of a hydropower station, and an isolation valve is arranged on the water supply pipe.

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