1. Current situation of cooling tower industry

Cooling tower in the initial application is the form of spray pool, later developed into a draft form, to 1924 developed into a form of blast ventilation. In the 1950 s and 1960 s, the cooling tower made a major breakthrough, and the machine ventilation cooling tower became a standardized tower type and developed rapidly.

Since the 1970 s, China has conducted a lot of in-depth research on cooling towers, and achieved a lot of research results in the 1980 s, and promoted the rapid development of the domestic cooling tower industry.

2. Development trend of cooling tower industry

(1) Civil cooling tower

Optimize the noise, power consumption, evaporation loss and other technical indicators, while improving the appearance of the cooling tower, materials, into the overall quality of the building.

(2) industrial cooling tower

At present, the industrial cooling tower mainly focuses on the following technology development trends:

A, water-saving technology: by adding high-efficiency air-cooled heat exchange devices on both sides of the cooling tower air chamber, the cooling of circulating water in the device does not produce water evaporation, and the heat exchange rate of this part accounts for 15% ~ 20% of the total heat exchange rate, so compared with the regular cooling tower, the average annual water saving rate (based on the amount of evaporated water) is 15 ~ 20%;

B. Fog elimination technology: by reducing the relative humidity of the airflow discharged from the air duct outlet, thereby reducing the condensation of water vapor generated during mixing with the atmosphere, and realizing the reduction of plume fog operation in a low temperature environment;

C, noise reduction technology: by adding air inlet muffler, exhaust muffler, fan motor vibration reduction device, muffler filler and other mute devices, compared with the regular cooling tower, the noise at 1 meter outside the cooling tower equipment is reduced by 10~30 decibels;

D, energy-saving technology: through fine design to make the cooling tower tower pressure head and wind motor energy consumption lower; In the high backwater pressure circulating water system, through reasonable design, using hydraulic fan technology, reasonable and effective use of high backwater pressure head, saving wind motor electricity; Through automatic control and adjustment, according to different seasons and ambient temperature, the cooling tower group wind motors are effectively controlled to achieve the purpose of intelligent control and energy saving;

E, large natural ventilation cooling tower high water collection technology: this technology reduces the static head of the circulating water pump and reduces the cooling tower water spray noise, compared to regular cooling towers, significantly reduce the operating power consumption and noise control costs.

(3) Cooling towers for nuclear power

The development of inland nuclear power is the direction of China's nuclear power development. Inland nuclear power is bound to use cooling towers. The amount of water in nuclear power is twice as large as that in thermal power, so the cooling tower has a large water area. The market for nuclear power cooling towers will grow rapidly in the next 5 to 10 years, and vigorously developing nuclear power cooling tower technology is the future development trend.

(4) Seawater cooling tower

The cooling towers in the power industry are mainly natural draft counterflow cooling towers. The use of seawater cooling towers in coastal areas can reduce the thermal pollution of DC power plants to environmental waters. At present, only a few companies in China have developed seawater cooling towers in the real tower operation.

3. Market demand analysis

Cooling towers are widely used in petrochemical, metallurgy, electric power and other industrial fields. The demand for cooling towers in these industries can be divided into two aspects: first, the demand for new equipment generated by new fixed asset investment such as capacity expansion, industrial integration and industrial upgrading in the above industries (demand for new towers); second, driven by national energy conservation and emission reduction policy factors, the above industries carry out water-saving and energy-saving transformation, the resulting demand for updated equipment (retrofit tower demand).

4, Correlation between the industry and upstream and downstream industries

The upstream enterprises of cooling tower business include mechanical and electrical equipment, steel materials, chemical materials and other raw material suppliers, while the downstream enterprises are mainly distributed in petrochemical, metallurgy, electric power and other industrial fields. Water-saving, energy-saving transformation, resulting in the renewal of equipment needs (transformation tower needs).

5. Impact of upstream and downstream industry development on the industry

(1) The relationship between the upstream industry and the industry and the prices of mechanical and electrical equipment, iron and steel materials, chemical materials and human resources that affect the upstream directly affect the cost of the industry and have an impact on the profits of the industry. The rise in the prices of mechanical and electrical equipment, iron and steel materials, chemical materials and other raw materials, as well as the increase in the wage level of workers, will increase the operating costs of the industry and adversely affect the profitability of the industry.

(2) Linkage and impact of downstream industries with the industry

The industry in which the company is located has a strong correlation with fixed asset investment in downstream industries. In addition, it also has a certain policy orientation. The country's introduction of energy-saving and water-saving policies and measures will promote the development of the industry. The development and application of new cooling tower products with comprehensive efficiency advantages such as water saving, fog elimination and noise reduction are strongly supported by the national energy saving and water saving policy, and the market share is constantly expanding.

6. Industry competition pattern

Many manufacturers in the cooling tower industry, Shandong, Hebei, Zhejiang, Jiangsu and other places gathered hundreds of cooling tower manufacturers. Most of the domestic manufacturers disorderly competition, the product grade is not high, it is difficult to meet the needs of domestic large-scale supporting projects, products are also difficult to enter the international market.

There are few domestic cooling tower manufacturers above the scale, among which the representative ones are our company and Sinochem Engineering Cangzhou Cooling Technology Co., Ltd. The cooling towers of these manufacturers have been widely used in large-scale projects in domestic petrochemical, metallurgy, electric power and other industrial fields. With the continuous promotion of policies related to water conservation, energy conservation and consumption reduction, and clean production, cooling tower manufacturers with mature technology, excellent quality, perfect service and strong capital will have a broad space for development.