Summer maintenance content of cooling tower

In order to test the operating effect of the cooling tower and evaluate the cooling capacity, the staff must conduct indoor tests. We can also conduct identification tests on the operating cooling tower on the production site. The nozzle in the spraying device should be marked with numbers on the nozzle wall according to different diameters to indicate differentiation. This will not only reduce the efficiency of the closed cooling tower, but also cause serious damage to the container. Therefore, when filling the closed cooling tower, the staff must fully consider this and take relevant protective measures to reduce the occurrence of problems. When choosing a fiberglass cooling tower, it is necessary to add a water collector. Many manufacturers, in order to save capital, have mostly cancelled the water collector, resulting in the trouble of water drifting in the cooling tower for users. That's all for the explanation on how to reduce the floating water of the collector in the fiberglass cooling tower. For more exciting content, please follow our website and call me to purchase. The power selection of the electric heater is confirmed based on the circulating water volume and external temperature. Pipeline leakage or air leakage. After the filler and water distributor are removed from the packless atomization cooling tower, install the thread proof spray device on the upper edge of the air inlet and evenly distribute the dishes The flow direction of water inside the tower is in the same direction as the cold air drawn by the axial fan. The contact between cooling water and air involves three processes: forward flow, reverse flow, and suspended flow Cooling also includes three processes: co current cooling, counter sink cooling, and suspended flow cooling And the packed tower only has one process of countercurrent cooling. When cooling water circulates in a completely enclosed system consisting of heat exchangers and pipelines, it is called a closed circulation system. The solution to fill blockage is actually very simple. First, try to use softened water as the main circulating water for the cooling tower. If conditions do not allow, users who use well water or tap water should regularly use descaling and algae killing agents; Experimental results have shown that the use of descaling and algae killing agents in cooling towers has a more significant energy-saving effect, especially when applied to large and medium-sized cooling towers. It can increase the heat transfer efficiency of the cooling tower by more than 10%, save energy by more than 6%, and extend the service life of the cooling tower frame and cooling tower packing by more than 30%.
Avoid operating the cooling tower at low temperatures and reduce the number of tower starts and stops. In a closed loop system, the heat absorbed by the cooling water is generally cooled by air. During the water circulation process, there is no water loss except for leakage, and there are no environmental problems caused by discharge. The salt content and dosage in the system remain almost unchanged, so the water quality treatment is relatively pure. The packless atomization cooling tower sprays water into tiny mist particles through the anti blocking spray device, so that the air and water particles can contact evenly, and the cooling area is increased by nearly 30%. The packed tower distributes water on the packing and contacts the air like a film Filler free atomization cooling tower with tip filling and water distributor Reduced the load on the tower body, reduced the number of packing support facilities, and simplified the foundation structure. The nut may not be tightened during installation. Can the antifreeze of the internal circulating water system be achieved through ethylene glycol solution or heating facilities. What should be noted when installing a cooling tower? 4. Precautions when installing a cooling tower: Before making the concrete foundation of the tower, check whether the paper size matches the sample foundation size of the manufacturer and model of the equipment provided. The following are the standard configurations for each cooling tower produced by Ruixiang: the steel structure is treated with acid pickling and rust removal followed by hot-dip galvanizing, the cooling tower is equipped with a water collector, the cooling tower packing is made of high-quality PVC material, and the cooling tower shell is free of cracks, bubbles, and other phenomena. We have a clear understanding of the material of the packing used in closed cooling towers. Its main function is to decompose the cooling water, allowing the liquid to quickly form a water film. Introduction to the characteristics and application scope of circular counter current cooling tower. With the development of industrial production and the continuous improvement of people's living standards, it is urgent to control water pollution and make reasonable use of water. Many units have widely adopted fiberglass cooling towers, which are energy-saving and ideal equipment, to achieve the Peruvian cycle and improve the reuse rate, effectively reducing costs. At the same time, people's desire to adjust the surrounding environmental degree, crystallinity, and noise impact has been translated into reality. So we not only need technical personnel for the research and testing of cooling towers, but also a complete and standardized set of testing methods.
The circular counterflow fiberglass cooling tower adopts the counterflow heat exchange technology, and the packing material is made of high-quality modified melamine flakes to diffuse the water surface area; By using a rotating water distribution method, the DBNL3 series low-noise fiberglass cooling tower achieves uniform water replenishment and enhances cooling effect. It is suitable for general occasions such as air conditioning refrigeration units with water temperatures between 4-7 degrees Celsius; The CDBNL3 series ultra-low noise fiberglass cooling tower is suitable for hotels, public buildings, and residential areas with strict noise requirements; The GBNL3 series medium high temperature industrial fiberglass cooling tower is suitable for industrial water circulation cooling systems with a water temperature drop of 10-25 degrees Celsius; My leading products are FRP cooling tower series, which are also called cooling tower, cooling tower and cold water tower. The products are divided into circular counter flow cooling tower, square counter flow cooling tower, square cross flow cooling tower, packless spray cooling tower, large FRP cooling tower and stainless steel cooling tower. High thermal stability cooling towers must be selected; When used in intermittent operation systems, such as in temporary continuous operation systems. You can consult my company for the formula of ethylene glycol solution. Analyzing the advantages of fiberglass cooling towers: Nowadays, there are more and more products and equipment made of fiberglass material, and because of the advantages of this equipment, more and more products and equipment have great advantages, making it very convenient to use. Reduce the operation of cooling towers in low temperature conditions during winter to avoid damage to cooling tower packing caused by icing. What are the application characteristics of cooling tower products? As a specialized manufacturer of cooling towers, our high-quality products have been well received and praised by a wide range of users. In order to help everyone have a more comprehensive understanding of our products, our staff will now give you a brief explanation. From this, it can be seen that the role of the water filling material is still quite obvious. When installing the cooling tower on the roof, the foundation should be prepared before the waterproof layer is constructed. If the leakage is not severe, cement can be applied to the leaking or leaking area, or cement slurry mixed with asphalt oil can be applied. But there is a serious problem of corrosive agents and corrosion products in the closed circulating cooling water.
The cooling tower is fully closed for circulating cooling, and there are no impurities entering the cooling pipeline system, resulting in pipeline congestion. Moreover, fillers can also serve as auxiliary materials for contact area, expanding the contact range between water and air and improving their heat exchange efficiency. When assembling on the roof, attention should be paid to the completed waterproof layer. Temporary repairs can be coated with some wet mud or soft. Closed loop systems are generally only used in areas with small water volumes or water shortages. What are the correct operating methods and requirements for cooling towers? Although cooling towers are auxiliary equipment in air conditioning refrigeration systems, they play an important role in dissipating the total heat absorbed by the entire system. Therefore, the correct operation of cooling towers directly affects the cooling effect and energy saving of the entire air conditioning system. The requirements for thermal stability can be relaxed, and during equipment shutdown, it can be considered to maintain the corresponding temperature through temperature control; If used in equipment systems related to food industry, non-toxic or less toxic products with high safety should be considered, such as organosilicon, fluorine, etc; If the same cooling tower is used for both heating and cooling processes, a cooling tower with a wider temperature range is chosen. For larger cooling system applications, it is possible to consider digging a pool to pour spray water into it, which can save electricity consumption due to electric heating operation. Additionally, products can be added to the pool to improve the water quality of the spray water. Fiberglass cooling tower is one of them, and after comparison, the advantages of this type of cooling tower in practical applications will become increasingly apparent, and the number of advantageous projects will also increase. Try to reduce the number of starts and stops as much as possible, because the cooling tower packing is a vulnerable part. With the long-term start and stop of the equipment, the packing is in a wet and dry state, which makes it easier to increase the natural aging of the packing. The good effect is that the packing is always in a state of water, which will increase the service life of the cooling tower packing.
Due to the widespread misoperation of the cooling tower mentioned above And the entire process from machine to shutdown exists, so its harm is significant and should be highly valued by relevant operators and managers. The installation of cooling towers should choose locations with good ventilation and away from important buildings as much as possible. At the same time, manufacturers with lower operating noise should be selected as much as possible, and environmental noise should generally be controlled within 55-60dB. After summarizing and analyzing the actual application situation, it was found that the advantages of fiberglass cooling towers include: using this type of cooling tower equipment occupies a smaller space range, but can complete the same amount of work and achieve the same cooling effect within a smaller space range. Soft water circulation cooling ensures no rust formation even at high temperatures, which can cause scaling in the cooling pipeline system. Considering the external dimensions of the cooling tower, this is particularly important because the cooling effect of the cooling tower depends on the size of the heat exchange area of the cooling tower itself, and the size of the external dimensions of the cooling tower directly affects the size of the heat exchange area of the cooling tower. Therefore, when choosing a fiberglass cooling tower, if the configuration is the same, please choose the larger one; In short, the larger the size of the cooling tower, the more ideal the cooling effect. If there is water leakage at the joint, a wrench can be used to tighten the nut. If the water leakage is severe, it must be reinstalled and the pipe with cracks must be replaced; Reduce the head and press the pipe mouth of the water pump 0.5m underwater. During the installation of a counterflow cooling tower, attention should be paid to fire prevention. It is strictly prohibited to use open flames such as welding (or gas cutting) in the tower body and its vicinity, and smoking by personnel present is also not allowed. Cooling equipment manufacturers explain how unfilled towers cool down. A cooling tower is a device that uses the contact between water and air to dissipate waste heat generated in industry or refrigeration and air conditioning through evaporation. The issue of antifreeze in environments where it operates year-round is a concern for enclosed cooling towers. If equipped with an electrical control system, the number of cooling towers may vary due to changes in the load of the main system, so antifreeze should also be considered. Cold water flows into the heat exchanger to cool the hot fluid. After the water temperature rises, the remaining pressure flows into the cooling tower for cooling. The cooled water is then pumped into the heat exchanger for circulation. This system is called an open circulating cooling water system.
The basic principle is that dry (low enthalpy) air is drawn by a fan and enters the cooling tower through the air network; Saturated steam is high-temperature water molecules with high pressure flowing towards low-pressure air, while hot and humid (high enthalpy) water is sprayed into the tower by the water spraying system. Calculation method: Basic formula: The amount of water evaporated by the cooling tower is approximately equal to the product of the water flow rate multiplied by the cooling tower multiplied by 0.001 degrees Fahrenheit. This open circulating cooling water requires a certain amount of fresh water (usually referred to as make-up water) to maintain a certain salt or ion content in the circulating water due to the evaporation of some water and the discharge of a certain amount of concentrated water during the circulation process. Scaling of cooling pipes can easily lead to overheating and damage of pipelines, directly endangering the cooled industrial equipment of the owner. When purchasing a cooling tower, please refer to the above points. When choosing a cooling tower, be sure to compare it more, look at the same quality, look at the same technology, and look at the same technology; If you are a cooling tower manufacturer without advanced technology and expertise, even if it is cheap and good, don't buy it. The main reasons for severe vibration are as follows: unbalanced electric rotor; Poor coupling connection; Bearing wear and bending; Loose or broken parts of the rotating parts; Reasons such as unstable pipeline supports. If open flames are used, corresponding safety measures should be taken. The correct operation method and requirements for cooling towers are: the number of cooling towers used should match the number of units started; Close the inlet and outlet valves of the cooling tower without fans to prevent cooling water from flowing through the unused tower; Temporary addition of cooling tower fans After turning off the fan, do not forget to close the inlet and outlet valves of the tower; Check the operation of the cooling tower after each flight It was found that there is cooling water passing through the cooling tower without a fan It is necessary to promptly close the inlet valve of the tower and adjust the water level of the water tray to the condenser, evaporator, and cooling tower inlet valves of the air conditioning system. Some units are equipped with electric valves, but electric valves are prone to malfunction and failure Therefore, a strong inspection should be conducted Ensuring the normal and correct operation of the system, the refrigeration process is actually a heat exchange process. Support piers and brackets should be installed for the water pipes entering and exiting the tower. Secondly, the advantages of fiberglass cooling tower equipment in terms of energy conservation and environmental protection are more obvious. Firstly, compared with previous equipment, it saves more electricity and emits less noise during operation. The equipment has advanced noise reduction design, and the sound emitted by the equipment during operation is also much smaller.
What are the methods for reducing noise in cooling towers? 5. Low noise cooling tower noise is mainly caused by fan noise and water falling noise. The factor of excessive current in the cooling tower motor 6 is that the cooling tower motor will generate heat during actual operation, while the motor's own heating temperature is about 40 ℃, and the current is relatively stable; Some users' cooling tower motors have excessive current and tricky motor casings. If the cooling tower motor has the above problems, please immediately check the following factors: the power selection of the cooling tower motor is not compatible with the fan, commonly known as a small horse pulling a big car. Please replace the high-power motor; The viewing angle of the cooling tower fan blades is too large. Please adjust the blade viewing angle immediately; A viewpoint of 8 centimeters is good; The fan bearings are damaged or the fan blades may be unbalanced. Please replace the fan bearings or calibrate the fan blades; The cooling tower motor is out of phase. When the motor operates in single-phase mode, the current will suddenly increase, and over time, the motor may easily burn out; The motor voltage is unstable, and the motor voltage of the fiberglass cooling tower is 380V; The gearbox is short of oil, please add gear oil immediately. It is recommended to choose gear oil of 30 # or above; The motor may have been overloaded for a long time and started too frequently. So, how does an unfilled cooling tower cool down? Here, technicians will provide you with a detailed answer: the cooling mechanism of unfilled cooling towers: the three major elements for achieving cooling: the ratio of cold air to water (air-water ratio); The surface area in contact with cold air and water; The duration of contact between cold air and water. The heat exchange of chiller units is complex for window type, split type, and cabinet type air conditioners, with the former being indirect refrigeration and the latter being direct refrigeration. The cooling tower occupies a small area, does not require digging a pool, is easy to locate, saves water, and reduces energy consumption. Key points for construction and installation of counterflow cooling tower: During the installation process of counterflow cooling tower, attention should be paid to fire prevention. It is strictly prohibited to use open flames such as welding (or gas cutting) in the tower body and its vicinity, and smoking is not allowed for personnel present. The open circulating cooling water system is a widely used system and also a complex system for water quality treatment technology. Thirdly, the corrosion resistance of the equipment is better than before, and its service life will become longer. Measures such as adjustment, repair, fixing, straightening, and replacement can be taken to handle it separately. Calculate the emptying time after viewing the cooling tower.
The emptying rate is equal to the evaporation rate (i.e. step), which is the number of cycles that the cooling water has already cooled. The cooling tower controls the water environment pollution. With the development of industrial production and the continuous improvement of people's living standards, it is urgent to control the water environment pollution and make reasonable use of water. This is very in line with the long-term interests of the user unit. The cooling of circulating water is the result of the combined action of evaporation heat dissipation, contact heat dissipation, and radiation heat dissipation through the contact between water and air. The foundation of the cooling tower should be kept horizontal, and the support column should be perpendicular to the base surface, with a height difference of no more than 1mm between each base surface. Fan noise is the noise generated by the operation of the fan, mainly aerodynamic noise, including rotational noise and eddy current noise. There are also gearbox noise and motor noise driving the fan. The above content is the main factor that may cause overheating due to excessive current in the cooling tower motor. If users have any questions about self repair or other treatments, please contact our technical personnel and follow our requirements for operation. It is designed based on the above three elements. Ten precautions for cooling towers: 1. Check if the fiberglass cooling tower reducer has oil, if the oil level is at the required position, and if the oil grade is HL-30 gear oil at 3/4 of the oil elevation. 2. Rotate the fan blades by hand to check if the reducer transmission is flexible. 3. Thoroughly flush the water pipeline and pool before use to eliminate all debris from entering the tower and blocking the pipes and nozzles. 4. Check if the connecting bolts of each component are tightened, especially the transmission system components, which must be tightened one by one. 5. Check the direction of the cooling tower fan when viewed from the top of the tower. When starting clockwise, to prevent excessive torque from burning out the motor, the voltage needs to be reduced. After it runs normally, check the motor's current, voltage, and vibration Whether the noise and other factors are within the normal range. If there are any abnormalities in the fiberglass cooling tower, they should be checked and the fault should be eliminated in a timely manner. At the same time, it also has the advantages of semi-automatic digital temperature control, semi-automatic liquid level control, energy saving, high precision, and convenient and simple operation.