How to cool down in the high temperature workshop of automobile factory?

Workshop cooling-Ventilation and cooling of large workshops improve the environment.

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A large factory building refers to a workshop with an area of more than 5000 square meters or more. For a long time, because of the high temperature in the production process workshop, there are odors and dust in large factories. Generally, there will be gas buildings or unpowered exhaust in the original design. The actual effect will not be ideal, and the workshop is still hot, smelly and dusty.

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The main reason is that the ventilation volume of gas building or unpowered exhaust is too small due to the large plant area. As a result, there is no fresh air in the workshop, and there is more and more turbid air in the workshop, which permeates the whole space. After a long time, people feel anoxic and sultry. Summer is even worse.

The ventilation capacity of unpowered range hood is only 100-300 m? /h, it will be less when the air pressure is low. For example, a workshop with an area of 5,000 ㎡ and a height of10m is equipped with 150 unpowered range hoods, with a maximum ventilation of 300×150 = 45,000m? /h The volume of the whole workshop is 50000m? In other words, the workshop can't change the air once an hour! Then, of course, there will be high temperature, odor and bad environment in the workshop.

Nantong Weili HVAC Engineering Co., Ltd. specializes in

Solution: The workshop is sultry-no matter how hot the workshop is (45℃ or 80℃), the functions of cooling, smoke exhaust and dust removal can be completed within 100 second.

Solution: The air quality is dirty. It integrates ventilation, air exchange, purification and deodorization to increase the oxygen content of the air and keep it fresh at all times.

Improvement: industry competitiveness-improve the factory environment, stop infectious diseases, improve the enthusiasm of employees and improve production efficiency.

Improve: company benefits-reduce energy consumption! Save electricity every minute, save money every moment.

Environmental protection and energy saving: ventilation and cooling system-low cost, power consumption about air conditioning110!

Investment prospect: all cooling equipment-the minimum investment return rate is the highest and the minimum energy consumption is the best!

Our plan:

First, the original gas building, we transformed the gas building structure and installed negative pressure fans. According to the actual situation of the workshop, reasonably design the position and quantity of fans.

Second, there used to be a range hood, so we built a gas building and installed a negative pressure fan.

Three, the original no ventilation facilities, we according to the site conditions, reasonable design of ventilation scheme.

Case 1: Ventilation and Cooling Scheme of Jiangsu Jielilai Daily Chemical Company

Modification of original unpowered range hood. Make a roof exhaust device on the roof of the workshop. A large-scale high-heat workshop like this will achieve 40-60 ventilation times per hour according to industry norms, which will be very ideal. The workshop covers an area of 7300 square meters with a total volume of 65700 square meters. The total air volume required for 40 air changes is 2628000m? ; The capacity of negative pressure fan per fan is 44500m? /h, you need 60 negative pressure fans on the roof. (negative pressure fan parameters 380V, 0.75KW, air volume 44500m? /h. According to the degree of hot weather, all or part of the roof power supply can be turned on to exhaust, and the accumulated heat in the room can be eliminated in time. Let fresh and relatively cool outdoor air be sucked into the workshop in time, so that cool fresh air will be continuously input into the whole workshop, and a slow cool wind will continuously pass through the whole workshop, and the temperature of the whole workshop will be obviously reduced to be close to the outdoor temperature.

People's sense of body is: in an environment with a breeze, the sense of body is 2.4 degrees lower, that is, 28 degrees+breeze, 25.6 degrees-to put it more bluntly, at 28-30 degrees, people feel a little hot. If there is a slight breeze, it is not hot at all, and it is very comfortable.

-We're just creating an artificial breeze environment!

-It will be more energy-saving to decide how many fans to turn on according to the cold and warm weather!

Case 2: Henghui (Nantong) Safety Protection Products Co., Ltd.

Rebuild the roof gas building of the workshop and set up the roof exhaust system. The workshop covers an area of 9800㎡. Due to the particularity of the process, Henghui glove latex production line will produce a lot of heat and odor in the production process. Due to the design limitation of steel structure workshops (connected in rows), the ventilation is seriously insufficient. Although the gas building is built on the roof, it is beneficial to natural ventilation, but the effect is not ideal. The hot air and smell in the workshop cause workers to feel sick and suffer from heatstroke, especially in summer. In view of this situation, our company proposes to transform the gas building, design the power exhaust system, use the original gas building, install the anti-corrosion negative pressure fan, and design the air exchange times of 40 times/hour. Through this transformation, the environment of the workshop has been greatly improved-the smell is gone (discharged to the outside in time), and the workshop is no longer hot (the heat gathered in the workshop is replaced). After the transformation of the first phase project (the third workshop) achieved perfect results, Henghui leaders decisively transformed the workshops with the same problems in the fourth, fifth and sixth workshops of the whole company, which improved the working environment of workers, boosted morale, greatly improved production efficiency, solved the troubles that plagued the company for many years, and gave great affirmation to our work!