What to do if the cooling tower is broken The reason why the cooling tower is not cooled well

Founded in 1997, the company is a large-scale FRP products in China, and is the largest manufacturer of air conditioners. It is one of the professional manufacturers, with total assets of 80 million yuan and more than 1,000 employees, including 112 senior and middle-level professional titles, with an annual production capacity of more than 100 million yuan.

The company is registered with the trademark "Jifeng", mainly including first-class air conditioning series products - fan coil unit, air conditioning unit, aluminum alloy seal, fire damper, smoke exhaust fan, muffler, etc. Molded series products - water tanks, manhole covers, auto parts, tables and chairs, anti-glare panels, etc. Winding series products - Gaza pipelines, process pipelines, gas pipelines, cable pipelines, vertical horizontal storage tanks, transport tanks, etc.

Pultrusion series products - doors and windows, grilles, cable trays, various profiles, etc. Cooling towers, fans, environmental protection equipment, purification towers, absorption towers, septic tanks, biogas tanks, large-scale handicraft modeling landscapes, anti-corrosion projects, etc.

The company has now become a collection of engineering budget, technical consulting, product design, manufacturing, installation and commissioning, after-sales service in one of the company, forming a set of standardized, scientific and systematic management system.

Over the years, the company has won the trust of the society and achieved great development by virtue of its strong strength, advanced technology, strict management, hard work, advanced consciousness, high sense of responsibility and good reputation.

Successfully passed ISO9001:2000 international standard and national quality system certification.

Member of China Federation of Industry and Commerce.

Director unit of China FRP Industry Association.

It has the "second-level qualification" of national mechanical and electrical equipment installation

Jifeng" trademark was recognized as a famous trademark by the Provincial Administration for Industry and Commerce.

Jifeng" brand products were rated as famous brand products by the Provincial Enterprise Bureau.

It was rated as "Little Giant Enterprise in Hebei Province" by the provincial people

It was rated as "Top Ten Private Science and Technology Enterprises in Hebei Province" by the provincial people

It was rated as a "high-tech enterprise" by the Provincial Science and Technology Commission

It was rated as an AAA customer by Agricultural Bank of China Hebei Branch.

For many years, it has been rated as a "contract-honoring and trustworthy" enterprise by the Municipal Bureau of Industry and Commerce.

The development of high-efficiency and energy-saving FRP cooling tower has been listed as a national Spark Program project.

The cooling tower was awarded the gold medal at the first national FRP development site meeting.

FRP waste utilization technology was awarded the Science and Technology Progress Award.

The fire smoke exhaust fan was awarded the Excellent Invention Award of Hebei Province.

All kinds of products have complete national licenses, approvals and inspection reports.

Customer first, reputation first is the principle that the company has always followed, grasp the present, focus on the future, Keli company Ma Zhenfu and all the staff, willing to work with customers and friends at home and abroad.

Hand in hand to create a better future.

The quality of the FRP cooling tower produced by Henan Qinyang Hongchang Company is very good, we have not found any quality problems, you can contact us.

Hebei Hongrun FRP **** specializes in the production of various FRP cooling towers.

It is best to be the original manufacturer, so that it is convenient to buy some parts!

You can ask a cooling tower company to make repairs.

There are four reasons: 1. There is too much sediment in the cooling tower. Especially in the packing part, the function of the packing in the cooling tower is to increase the heat dissipation, prolong the residence time of the cooling water, and the water forms a uniform film on the packing to increase the heat exchange area, increase the heat exchange, and evenly distribute the water. However, if the packing is fouled or damaged, the water will not be able to form a thin film on the surface of the packing, hindering heat dissipation and thus affecting the cooling effect of the cooling tower.

2. The air volume of the fan is insufficient. The closed cooling tower bucket relies on a fan to blow away the heat and discharge it into the atmosphere. Therefore, if the air volume of the fan is insufficient, it will inevitably affect the heat dissipation.

3. Insufficient cooling water. Some customers complained: the temperature of the return water of the cooling tower is very low, but the air conditioner is a high temperature alarm.

After analyzing the cause, it was concluded that the amount of cooling water was insufficient. In fact, this is easy to understand, the host needs 100 cubic meters of water per hour to take away the heat, but in fact only 80 cubic meters of water flows, of course the host alarms. What happens to a cooling tower that is designed to have a water flow of 100 cubic meters per hour, but is actually only 80 cubic meters?

Generally, if the water is insufficient, the temperature will be lower after cooling. 100 tons of towers to cool 80 tons of water, cannons to hit birds, there will certainly be no problems. But not necessarily, we have also encountered situations where it can't be cold.

At that time, the 200 cubic cooling tower had a small water flow, which caused the nozzle to have no pressure and the water could not be opened, so it flowed down in a strand and could not form a film on the filler. Causing problems that cannot be cooled. 4. The cooling tarb water is not evenly distributed.

For cooling towers, nozzles are generally used to distribute water. If the sprinkler head in the cooling tower is partially blocked, or if the sprinkler head falls out, it will cause the water to not be empty and the lead will not be evenly distributed. Regularly checking the water distribution of the sprinklers is essential for cooling towers.

The influence of the cooling tower's heat sink and fan air volume on the cooling system is: 1. Heat sink: it is the key component of the cooling tower, the small tower generally uses PVC sheet hot pressing or heat absorption, and the large tower will use wood, the main purpose is to make the contact surface between air and water do not affect the wind resistance, the larger the better, and the heat exchange rate also reaches a large level, the heat sink affects the two parameters of the heat transfer effect, mainly the shape and height of the heat sink.

2. Fan air volume: It mainly accelerates the air flow in the tower, accelerates the heat exchange between air and water consumed by the combustion brigade, and takes away the heat. The main factors that affect the air volume of the fan are the shape of the fan blade, that is, the width and length of the fan blade and the declination angle of the fan blade, the speed of the fan blade, the installation angle, the speed and the motor and transmission ratio.

In addition, in the case of a certain air volume, the cooling effect of the same type of tower with a small amount of cooling water is better than that with a large amount of cooling water. The cooling tower balance tube ensures the free flow of the ballast nuclei in the pool.

It can continue to be used, but at this time, the cooling effect of the cooling tower will become very poor. The associated adverse effects of poor cooling need to be kept on track.

If the fan motor is damaged, the ventilation and heat dissipation capacity of the cooling tower will be very poor, such as in the hot summer, which will cause the temperature of the cooling water to rise significantly.

As long as it can meet the needs of use, it is completely possible to leave the fan motor on.

The cooling efficiency will be greatly reduced after the cooling tower fan is broken, but when it is used in the early stage of refrigeration or when the cooling requirements are not high, the cooling tower fan should be repaired as soon as possible to ensure the stable operation of the system.

It is best not to use the fan if it is bad, and the cooling is mainly for the fan to cool.

Our company specializes in the production + maintenance of cooling towers, you can contact me Guangdong Fengdu cooling and heating technology development****.

1. Fan. When inspecting the fan, be sure to cut off the power supply of the fan motor. Sometimes, due to automatic operation and other reasons, it is dangerous for the wind turbine to start suddenly. In addition, the power supply must be cut off when the power is stopped, and it is very dangerous for the fan to start suddenly when the power supply is restored.

1) Confirm whether the blade is deformed, damaged, or whether there is dust, dirt and other attachments. In addition, check whether the gap between the blades in the tower is uniform around the circumference. There are no anomalies other than that.

2) Frequent start and stop of the fan motor will cause failure. Attention should be paid to the operation method, so that the number of starts is controlled within 4 hours.

2. Spray pump and circulating water pump.

When inspecting the pump, be sure to cut off the power supply to the pump. Sometimes, due to automatic operation and other reasons, it is dangerous for the pump to start suddenly.

1) When the pressure, flow, current, vibration, noise, etc. are very different from the usual, it is a precursor to the failure, so it is important to deal with it, so please keep a diary.

2) When the vibration is large, please check whether the installation problem of the piping or the foundation bolts are loose. Sometimes it is caused by the vibration of circulating water, and it is necessary to consider installing flexible joints, pressure vibration or absorption devices when making piping.

3) If the outlet valve of the pump is closed and runs for a long time, it will burn out the inside, so full attention should be paid to it.

4) Frequent start and stop will quickly burn the motor. Please control the number of starts according to the following criteria.

Motor power Number of starts.

The following 6 times in less than an hour.

Less than 11kw 4 times less than hours.

5) If the operation or maintenance is stopped for a long time, if the internal water freezes when the pump is stopped in winter, the pump will freeze. The pump must be insulated or drained from the inside.

3. Filler. During the long-term operation of the equipment, dirt will accumulate on the filler, which will affect heat exchange and ventilation, so it should be cleaned regularly with a medium pressure water gun. In order to ensure the heat exchange of the filler.

4. a cooler.

In the long-term use of the cooler, there will be scale accumulation on the coil, which will affect the heat exchange effect, so the heat exchanger should be cleaned regularly and descaling agent should be added to the water collection tank.

Hello! Lihinte's professional cooling tower has you covered!

Cooling towers operate all year round, and some are not used in winter.

Care and maintenance of cooling towers.

1.A full inspection and repair should be carried out once a year;

2.The maintenance of the motor is carried out according to the routine of the motor. The gearbox should be filled with lubricating oil frequently, not lower than the standard line;

3.If there is dirt in the packing and shell, it must be removed in time to prevent blockage, and the packing cleaning and cycle is not more than one year, and it is generally cleaned once whenever it is used;

4.The bracket in the tower is coated with anticorrosive paint according to the degree of corrosion, and it is not necessary if the material is stainless steel;

5.If the tower is not used for a long time or in winter, the water in the passage should be cleaned and covered with a tarpaulin to prevent stolen goods from entering and prevent the sun and rain.

In winter, how to do a good job of protective measures for cooling towers and matters that need to be paid attention to in winter use and operation:

Precautions during the winter holiday.

1) Discharge circulating water and dispersed water.

2) In the case of closed type, please open the drain valve of circulating water drainage, exhaust port and water pump.

Precautions for winter operation.

1) The current of the motor will increase.

2) To prevent freezing of the lower sink, use an antifreeze electric heater.

3) Use heaters for loose water pumps and piping, and do a good job of insulating the water level of the lower sink.

In order to prevent freezing of the copper pipes (radiators) and scattered water of the closed cooling tower, please pay attention to the following:

To prevent freezing of the circulating water, add antifreeze to the circulating water or add an auxiliary antifreeze electric heater to the piping.

After adding antifreeze, the freezing temperature drops, and it is not easy to freeze. The higher the concentration of the freezer, the lower the freezing temperature, but the lower the thermal conductivity, so it is important to pay attention when selecting a cooling tower. In addition, if there is a water leak, the nonfreeze will be diluted when the water is replenished, and the freezing temperature will rise.

When the circulating water pump is running, the antifreeze electric heater heats up, and the water will not freeze. If the circulating water pump is stopped, an auxiliary circulating water pump is also required, and we recommend using a complete set of antifreeze (including auxiliary circulating water pump, antifreeze electric heater, and piping).

The circulating water system is equipped with a three-way valve, and when the circulating water is controlled by the bypass pipe, if the flow rate of the bypass pipe is increased, the flow rate in the copper pipe will be reduced, and even when there is a load, it may freeze. Please set the minimum circulating water volume of the cooling tower.

To prevent the bulk water pump and loose water piping from freezing, use an antifreeze electric heater to maintain the temperature of the lower sink.

2) Never enter the cooling tower during operation. And do not climb to the upper part of the tower.

3) When the blower is likely to run, never touch the blower.

4) The antifreeze heater will heat up, please do not touch it with your hands.

5) Do not drink water from the cooling tower, and rinse immediately if it gets in your eyes. After work, rinse your mouth and wash your hands.

6) Each part of the tower is pasted with warning stickers and attention stickers, please abide by the contents recorded in the stickers. Precautions for cooling tower design and selection.

Beijing Hualeng cooling tower, no maintenance required.

The maintenance work is carried out in the following ways.

1) For the use of deceleration device, stop every two weeks to check the tightness of the lower belt, and adjust it when it is not suitable. If several belts have different degrees of tightness, they should be replaced in a complete set; If the cooling tower is not running for a long time, it is best to remove the belt and save it.

2) For those who use gear reducers, stop the machine once a month to check the oil level in the gearbox. When the amount of oil is not enough, it should be replenished in place. In addition, the cooling tower is operated every six months to check the color and viscosity of the oil, and all of them must be replaced if they do not meet the requirements.

When the cooling tower is used for 5000h, regardless of the oil quality, the gearbox must be thoroughly cleaned and the lubrication must be replaced. The lubricating oil used in the gear reducer is generally No. 30 or No. 40 mechanical oil.

3) Since the motor of the fan works in a damp and hot state for a long time, in order to ensure its insulation performance and prevent the motor from burning accident, the motor insulation performance test must be done once a year. If the requirements are not met, the motor should be disposed of or replaced in time.

4) Pay attention to check whether the packing is damaged, and if there is, it should be repaired or replaced in time.

5) The grease of all bearings of the fan system is generally replaced once a year.

6) When using chemicals for water treatment, it is necessary to pay attention to the corrosion of fan blades. In order to slow down corrosion, the corrosive substances on the blades should be removed every year, and the anti-rust paint and phenolic paint should be evenly painted; Or apply a thick layer of epoxy resin on the blade, and its anti-corrosion performance can generally be maintained for 2 to 3 years.

7) During the period when the cooling tower is out of service in winter, it is possible to deform the fan blades due to snow accumulation, which can be avoided in two ways: one is to rotate the blades to the vertical ground after the shutdown and tighten them at an angle; The second is to remove the blades or wheels together and put them indoors for preservation.

8) During the period when the cooling tower is out of service in winter, when there is a possibility of freezing, all the water in the cooling water collection tray and the cooling water system of the outdoor part of the cooling tower should be discharged to avoid freezing damage to the equipment and pipelines.

9) The bracket of the cooling tower, the structural frame of the fan system and the ladder are usually made of galvanized steel, and generally do not need to be painted. If rust occurs, then carry out rust removal and painting work.