Hot water circulating pump is widely used in: energy, metallurgy, chemical, textile, paper and other fields, hot water circulating pump mainly has the following kinds of faults: no water, lack of flow, noise vibration, water leakage. The following are common problems and countermeasures, hoping to help users.
First, the hot water circulation pump does not water how to do?
1 hot water pump inlet and outlet valves are not open, out of the pipeline obstruction, abortion impeller blocked. Solution, remove obstruction.
2. Inadequate import and export of water supply, suction stroke is too high, the valve leaks. Shutdown inspection, adjustment (water pipe and pipelines with suction easy to use this phenomenon).
3. The pump is not filled with liquid, there is air in the pump chamber. Open the pump cover or open the exhaust valve and drain the air.
4. Hot water circulation pump suction pipe leaks. Tighten the sealing surface, remove the air.
5. Motor running in the wrong direction, motor phase loss is very slow speed. Adjust the motor direction, sturdy motor wiring.
6. Pipeline resistance is too large, improper selection of centrifugal pumps. Reduce the pipe bend, re-select the pump.
Second, hot water circulation pump flow?
1. Hot water circulation pump import and export valve is not open, out of the pipeline obstruction, abortion impeller blockage. Solution, remove obstruction.
2. Pipeline, hot water circulation pump impeller impeller blockage, scale deposition, valve opening insufficient. Remove the obstruction and readjust the valve opening.
3 over the rated flow use. Regulate the flow off small outlet valve.
Impeller wear. Replace the impeller.
Centrifugal pump voltage is low. Regulated.
6. Pump bearing wear. Replace the bearing.
7. Centrifugal pump suction is too high. Lower suction.
Third, hot water circulation pump noise, vibration?
Liquid mixed with gas Increase suction pressure exhaust.
2. Cavitation generated. Reduce the degree of vacuum
3. Pipe support instability. Stabilize the pipeline.
4 bearing damage. Replace the bearing.
5. Motor overload heating operation. Regulate the flow off small outlet valve.
Fourth, hot water circulation pump motor heat how to do?
1. Hot water circulation pump flow is too large, overloaded operation. Off small outlet valve
2 hot water circulation pump motor bearing damage. Replace the bearing.
Insufficient voltage. Regulated.
Rubbing. Check exclusion.
Why say closed cooling tower is energy saving and environmental protection equipment, more and more users are using this kind of equipment to replace the original equipment (open tower), we can through data analysis and comparison, the two energy data accounting can be obvious. Energy consumption is basically two major aspects, one is water, the other is electricity. Both are energy costs that no cooling tower can escape, unless you leave the equipment on.
First of all, look at the consumption of water. Water is generally consumed in two aspects. One is the flying overflow after spraying, and the other is the evaporation consumption of water.
Let's look at the open cooling tower, the spray water of the tower is basically between two and three percent of the overflow rate, if we according to the daily operation of 10 hours, excluding holidays, 280 days of operation. According to the actual open cooling tower flow of 6000 cubic meters per hour to calculate. 6000*2%*10*280= 336,000 tons of water, and the same closed cooling tower, its spray flying overflow is very small, because after all, the spray work is carried out in the tower, almost can be controlled in a few thousandths, we calculate according to 5 thousandths, the same is 10 hours of work, 280 days a year operation, To achieve the same cooling amplitude is basically 4,500 tons per hour of closed cooling tower is enough, then the calculation results: 4,500 *0.5%*10*280= 63,000 tons, it is not difficult to see, because of the different design structure caused by the waste of spraying water resources, more than 200,000 tons of terror. The bigger the pool of the open tower, the more wasted water, because the evaporation area increases, and the closed cooling tower has no pool, so the consumption here is zero. Judging from the price of a ton of water, just such a equipment, a year to solve the capital of hundreds of thousands of enterprises.
Let's look at the comparison of electric energy, electric energy is not different, because they are all through the same power equipment to operate the equipment, the power of the two is similar, the running time is the same, basically the energy consumption is about the same.
To sum up, for the closed cooling tower energy saving accounting can be strong to open the tower out, and, today are advocating energy conservation and environmental protection, this is the general trend, so the closed cooling tower is more and more favored by the majority of users.
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