Gas storage tank i through system drilling gas tank 2 No. 1 filter tank No. 2 filter tank No. 3 filter tank No. 2 pool number pool seven water plant air compressor system diagram for air compressor system transformation map engineering technology - China new technology new products Talking about the air compressor system reform of Xining Qishui Plant Wang Yu (Xining Water Supply (Group) Co., Ltd., Xining 810000, Qinghai) The operation of the press system directly affects the water treatment process of the water plant. In this paper, in the operation of the air compressor system, the condensed water in the air pipeline is large, the valve island and the pneumatic valve head are damaged. The existing operation system of the water plant has been properly modified, and the obvious effect has been achieved. If you encounter such problems, you can learn from them.

The seventh water plant in Xining City was built in 2004 with a water supply scale of 300,000 m3/d. The water treatment process uses sludge reflow efficiency clarification and filtered feed water treatment process. The raw water is taken from Heiquan Reservoir in Datong County, Qinghai Province. Located in Tal Town, Datong County, Qinghai Province, the average altitude is 2490m. It is a plateau semi-arid climate with low pressure and large temperature difference between day and night. The water plant process flow chart can be seen as follows: 2 Air compressor system working principle Air compressor is an important equipment produced by water plant. It is installed in the backwashing equipment. The main function is to provide all the pneumatic components of the water plant, including various pneumatic valves. Dry, pressurized air. The main equipment of the air compressor system of Qishui Plant includes: 2 Ingersoll Rand screw air compressors, model UP5 15-10, one for one; two IR21D dryers; GP/HE filter 2 Set; 2 sets of GP/HE gas storage tanks and automatic control system for air compressors and dryers. Air compressor system diagram (see) The Ingersoll Rand air compressor selected for this system has the following characteristics: 1 low speed, large rotor, high efficiency main engine 2 air compressor mainframe adopts double shaft seal design, and the seal is reliable. 3 Maintenance-free geared direct drive system. 4 low failure rate, easy to assemble and maintain. The 5-star triangle starts and the starting current is small. 6 has a humanized intelligent system control system.

7 with IntellisysTM energy-saving controller. The 8 is equipped with a high efficiency intake control valve. 9 atmosphere control, low noise shell design.

3 The main problems in the air compressor system The seven-water plant air compressor system operates 24 hours, and the outlet pressure is controlled at 0.7 MPa, which provides power source for the pneumatic valves and pneumatic regulating valves of the three filters, precisely guaranteeing the filter water level filtering. To ensure that the water quality of the factory water is qualified. The Qishui Plant was completed and put into operation in 2007, but after running for a period of time, it was found that the pneumatic regulating valve could not be opened or could not be closed, and the filter could not work normally. After inspection, it was found that because the air compressor system is located at the bottom of the workshop, the pneumatic valve is far away from the gas source, the air humidity is large, and the temperature difference between the working environment temperature and the outside air is large. The temperature difference in winter can reach about 15*C, causing air line condensation. The water content is large and corrodes the valve island control circuit board.

4 Air compressor system transformation plan To completely solve the problem of large water content of compressed air in air pipeline, we decided to add a cold dryer on the main road, and at the same time, several low-precision air filters and oil-water separators are arranged on the pipeline. Before the gas source enters the pneumatic valve, add a first-class high-precision air filter to eliminate the black spring reservoir in the air. The mechanical stirrer, the boring, the mud, the muddy, the synergy, the 4 gas and the water, and the recoil pool. In the middle of the wish - the water of the city pipe network of the clear water pipe. Reconstruction of the air compressor system.

Description: 1. The air filter is installed in front of the cold dryer to filter, and the cold dryer plays a protective role.

2. The three main management filters behind the valve island 1 are preferably installed at the entrances of the three workshops. The closer the pneumatic valves are, the better the effect.

Separator giant and oil-water separators are more accurate than air filters and oil-water separators behind air compressors.

The cost of system renovation is about 50,000 yuan, mainly to purchase equipment and accessories such as cold dryer, main road filter, air filter and oil-water separator. There is no big change to the original gas supply pipeline, and the maintenance workers in the factory can carry out.

Before the air compressor system is reformed, the air pipeline has a large amount of water. It needs to drain twice from the gas storage tank once a day, and the displacement is about 10 kg, which affects the normal opening of the pneumatic valve regulating valve, thus affecting the water quality after filtration. Damage to multiple valve islands and pneumatic regulating valve heads, each pneumatic regulating valve head is nearly 30,000 yuan. After the system transformation, the pneumatic regulating valve runs freely without failure, ensuring the filtration of the filter water level and ensuring the factory water quality.

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