- Contact：Mr. Song
- Phone：0086-13705113637
- Tell：0086-0515-88809180
- Fax：0086-0515-88809181
- E-mail：jsjckt@126.com
- Address：No. 18, Rongguang Road, National High-tech Park, Yancheng City, Jiangsu Province
Welcome to pay attention to the official website of Jiangsu Jincheng Air Conditioning Engineering Co., Ltd., share the new information of the cooling tower industry and discuss more knowledge about the cooling tower!
First, the cooling tower selection instructions:
1. Please indicate the specific model selected for the cooling tower or the flow rate processed per hour.
2, the cooling tower into the tower temperature and the tower water temperature.
3. Please explain to what equipment to cool down, whether there is a circulating pool at the site, and how to install the site.
4. If you need spare parts and other accessories, please have any other requirements, please specify.
5, very conditions of use, please specify the use of the environment and the specific circumstances, in order to choose the appropriate cooling tower model.
6. Please specify when ordering special cases and models, and design according to the contract and technical agreement of both parties.
Second, the cooling tower detailed selection:
1. First, determine the inlet water temperature of the cooling tower to choose a standard cooling tower, a medium temperature cooling tower or a high temperature cooling tower.
2. Determine the use of equipment or the noise requirements of the site. You can choose a cross-flow cooling tower or a counter-flow cooling tower.
3. Select the cooling tower flow according to the cooling water volume of the chiller or the chiller. Generally speaking, the flow rate of the cooling tower is greater than the cooling water of the chiller. (Generally take 1.2-1.25 times).
4. When multiple units are connected in parallel, try to select the same type of cooling tower.
Secondly, pay attention to the selection of cooling towers:
1. The tower structure material of the cooling tower should be stable, durable, corrosion-resistant and accurate in assembly.
2. The water distribution is uniform, the wall flow is less, the splashing device is selected reasonably, and it is not easy to block.
3. The type of cooling tower water filling material meets the requirements of water quality and water temperature.
4. The fan is matched to ensure long-term normal operation, no vibration and abnormal noise, and the blade is resistant to water erosion and has sufficient strength. The installation angle of the fan blades is adjustable, but the angle is consistent and the current of the motor does not exceed the rated current of the motor.
5, low power consumption, low cost, small and medium-sized steel skeleton glass cooling tower also requires light weight.
6. The cooling tower should be avoided as far as possible in the heat source, exhaust gas and flue gas occurrence point, chemical stacking place and coal pile.
7. The distance between the cooling towers or between the tower and other buildings, in addition to considering the ventilation requirements of the tower, the tower and the building interact with each other, the safety distance of the building fire prevention and explosion protection and the construction and maintenance requirements of the cooling tower should also be considered. .
8. The direction of the inlet pipe of the cooling tower can be rotated by 90°, 180° and 270°.
9. The material of the cooling tower can withstand the low temperature of -50 °C, but it should be explained when ordering the area with an average temperature of less than -10 °C in super cold, so as to take anti-icing measures. Cooling tower construction costs increased by about 3%.
10. The turbidity of circulating water is not more than 50mg/l, and the short-term is not more than 100mg/l. It should not contain oil and mechanical impurities. If necessary, measures to eliminate algae and water quality should be taken.
11. The water distribution system is designed according to the nominal water quantity. If the actual water quantity differs from the nominal water quantity by more than ±15%, it should be stated when ordering, in order to modify the design.
12. During the storage and transportation of the cooling tower components, no heavy objects should be pressed on them, and they should not be exposed to the sun, and attention should be paid to fire prevention. During the installation, transportation and maintenance of the cooling tower, no open flames such as electricity or gas welding shall be used, and fireworks shall be fired nearby.
13. Round tower multi-tower design, the net distance between the tower and the tower should be maintained at not less than 0.5 times the diameter of the tower body. The cross flow tower and the counter current square tower can be arranged side by side.
14. The pump should be matched with the cooling tower to ensure the flow, lift and other process requirements.
15. When selecting multiple cooling towers, use the same model as much as possible.
In addition, measuring the effectiveness of a cooling tower usually uses three indicators:
(1) The difference Δt between the inlet water temperature t1 of the cooling tower and the outlet water temperature t2. Δt is called the cooling water temperature difference. Generally speaking, the larger the temperature difference, the better the cooling effect. For production, the larger the Δt, the smaller the flow rate of cooling water required for the production equipment. However, if the inlet water temperature t1 is high, even if the temperature difference Δt is large, the temperature of the water after cooling does not necessarily fall to meet the requirements, so such an indicator is required, but the problem is not comprehensive enough.
(2) The closeness Δt' of the water temperature t2 after cooling and the air wet bulb temperature ξ. Δt' = t2 - ξ (°C) Δt' is called the cooling width. The smaller the value of Δt', the better the cooling effect. In fact Δt' cannot be equal to zero.
(3) Consider the watering density in the calculation of the cooling tower. The water spray density refers to the amount of water that can be cooled per hour on an effective area of 1 m2. It is represented by the symbol q. q=Q/Fm3/m2.h (Q-cooling tower flow, m3/h; F-cooling tower effective watering area, m2).
Jiangsu Jincheng Air Conditioning Engineering Co., Ltd. focuses on:
Industrial air conditioners, chemical fiber industrial air conditioners, chemical fiber industry refrigeration, textile industry air conditioners, clean room refrigeration, ventilation ducts, cooling towers, refrigeration machines and other air conditioning units and accessories.
If you want to know more about the product, please contact: Mr. Song 13705113637 Website: http://www.pc20080808.cn/
