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Rubber ball cleaning device is the best equipment for effective cleaning of condenser cooling pipe during the operation of steam turbine unit. The performance of the device directly affects the cleaning degree and heat transfer effect of the steam turbine condenser. The application scope of the device is quite wide, it is not only suitable for the cleaning of steam turbine condenser, but also suitable for petroleum, petrochemical, chemical and iron and steel units; the cooling pipe cleaning of fixed tube plate heat exchanger has entered the market of central air conditioning in recent years. The device can be put into use at any time without reducing the load of continuous work, and can always maintain the cooling pipe Clean state, can prolong the service life of cooling pipe, reduce labor intensity, increase economic benefits. It is an indispensable device to improve the safe and economic operation of condensers and heat exchangers in power plants, petroleum, petrochemical, chemical and iron and steel enterprises.
The system composition of automatic rubber ball cleaning device for condenser in power plant is as follows:
?? Type SL, type SD, type SF Net (rubber ball recycling net)
?? Rubber ball cleaning pump (rubber ball pump)
?? Zqs type Loading chamber (rubber ball memory)
?? FP type manifold (clean sponge rubber ball switching three-way pipe valve)
?? Qxjq special rubber ball for condenser cooling pipe cleaning (rubber ball, sponge rubber ball for condenser cleaning, rubber sponge ball, peeling rubber ball, emery rubber ball, emery sponge rubber ball)
XLW type rotary backwash strong sewage secondary filter screen (secondary filtration and purification device for circulating cooling water)
The rubber ball cleaning device produced by our company is an updated product in China. The rubber ball cleaning device is mainly divided into two series, a and B; a series is funnel type rubber ball net. B series is the punching plate net type ball collecting net. The main components of the device are advanced secondary filter screen and ball collecting net. The two series of ball collecting nets are the most advanced products for cooling pipe cleaning in China. It has the following characteristics:
1. The design structure is novel and reasonable.
2. Easy to operate.
3. The recovery rate of rubber ball is more than 98%.
4. The secondary filter screen has strong filtration capacity.
2、 Application range of a and B series
1. A series of funnel type ball collecting nets are mainly used for cleaning the cooling water pipes of condensers of generating units below 25MW, and also for the cleaning of cooling pipes by various heat exchangers, so as to improve the economic benefits of heat exchange.
2. B series punching plate net type ball collecting net is widely used for cleaning condenser cooling water pipes of steam turbine units above 25MW.
III. advantages of two series of rubber ball cleaning devices a and B
1. Our company's a, B two series of products to overcome the old to achieve more than 98%.
3. Stainless steel punching plate is used as the block and the rubber ball is used to make Rubber ball The shortcomings of cleaning the ball leakage, cutting, running ball.
2. Receiving rate: when the ball reaches saturation state, the service life of the ball receiving rate can be extended by 3-4 times.
Select the appropriate rubber ball, put the rubber ball into the ball loading chamber from the hand hole of the loading chamber, and the number of balls is about 10% of the number of cooling water pipes of the condenser. First open the ball valve of ball collecting net, then start the rubber ball pump, and then open the vent valve on the ball loading chamber to exhaust the air in the ball chamber, close the exhaust valve, and then open the ball valve in the middle of the ball feeding pipe. When the water flow is normal, slowly open the switch valve of the ball loading chamber, and it is not suitable to cut and change it too violently. The rubber ball enters the water chamber of the condenser under the driving of the circulating water flow. Under the effect of the pressure difference between the inlet and outlet of circulating water, the rubber ball washes the sediment and dirt in the cooling pipe, and rubs it once, so that the sediment and dirt on the inner wall of the cooling pipe is carried out with the water flow. The rubber ball enters the ball collecting net driven by the circulating water. Under the block of the ball collecting net, the rubber ball is separated and sucked out by the rubber ball pump, and then the cooling water of the condenser is recycled according to this law The tubes are continuously cleaned.
? 5、 Composition of rubber ball cleaning device
? 1. Secondary filter screen: The secondary filter screen is one of the main equipment of the cooling water purification device. It can clean all the sundries larger than 6 mm and ensure the rubber ball to run smoothly in the condenser. The secondary filter screen plays a key role. For detailed working parameters, please refer to the operation manual of "secondary filter screen". The structure of the electric rotary backwash secondary filter screen is shown in the drawing on the operation manual of the secondary filter screen: it is mainly composed of: (1) shell (2) stainless steel mesh core (3) transmission mechanism (4) reducer (5) strong sewage device and other parts.
? 2. Net: The net is Rubber ball cleaning system It is installed on the outlet pipe section of the condenser circulating water and its function is to separate the rubber ball from the cooling water. Our company designs funnel type and punching plate net. The utility model overcomes the shortcomings of the grid plate, such as leaking ball, running ball, cutting ball and so on. It has the advantages of convenient operation, high ball collection rate and good economic benefit.
? 3. Loading chamber ： The ball loading chamber is a device used for releasing, taking, storing and observing the circulation of rubber ball in the rubber ball cleaning device: it is composed of shell, funnel, switch valve and other parts, and is equipped with observation window, air release valve and water discharge valve.
? 4. Ball pump glue: The pump is a special barrier free centrifugal pump. Its impeller consists of two blades to form a tubular channel. It has the advantages of no blocking ball, no cutting ball and small wear force on rubber ball.
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