Products Description
In the realm of advanced thermal management solutions, the circulating exhaust cooling fan emerges as a crucial player, revolutionizing the way we tackle overheating and ventilation challenges in various industrial and commercial settings. With a steadfast commitment to efficient airflow, temperature regulation, and energy conservation, this cutting-edge cooling fan stands as a testament to innovation and engineering excellence.
Negative pressure fan is a machine that uses the cooling principle of air convection and negative pressure ventilation. It is a machine that naturally inhales fresh air from the opposite direction of the installation site – the door or window, and quickly forces the indoor hot gas out of the room. Any poor ventilation problem can be improved. The cooling and ventilation effect can reach 90% – 97%.
Negative pressure fan is the latest type of fan, belonging to axial flow fan. It is called negative pressure fan because it is mainly used in negative pressure ventilation and cooling engineering. The negative pressure ventilation cooling project includes the meaning of ventilation and cooling, and the problems of ventilation and cooling are solved at the same time. Negative pressure fans are also used in positive pressure water curtain environmental protection air conditioning, positive pressure air supply, positive pressure air blowing and other fields. The negative pressure fan has the characteristics of large volume, large air duct, large fan blade diameter, large exhaust air volume, ultra-low energy consumption, low speed, low noise, etc. The negative pressure fan is mainly divided into galvanized sheet square negative pressure fan and glass fiber reinforced plastic trumpet negative pressure fan in terms of structure and material. The structure and technical parameters of all galvanized sheet square negative pressure fans on the market are basically the same. FRP bell-shaped negative pressure fan can be divided into belt type and direct-connected type according to different transmission modes.
Packaging and logistics
Your advantages with igus® polymer plain bearings and energy chains:
- Port: Shandong, China
- Incoterms: FOB, CFR, CIF. EXW
- Payment method: letter of credit, telegraphic transfer
- Certification: CE, ISO, UL, QS, GMP
- Warranty period: 1 year
- Average lead time: peak season lead time: 3-6 months, off-season lead time: 1-3 months
Ventilation principle
The negative pressure fan discharges air outward to reduce the indoor air pressure, and the indoor air becomes thinner, forming a negative pressure zone, and the air flows into the room due to the compensation of air pressure difference. In the practical application of the industrial plant, the negative pressure fan is installed on one side of the plant, the air inlet is on the other side of the plant, and the air flows from the air inlet to the negative pressure fan to form a convection blow. During this process, the doors and windows close to the negative pressure fan remain closed, and forced air flows into the workshop through the compensation of the doors and windows at the air inlet side. The air flows into the workshop from the air inlet, flows through the workshop and is discharged from the workshop by the negative pressure fan. The ventilation is complete and efficient, and the ventilation rate can reach 99%. Through specific engineering design and air change speed and wind speed design as required, any high heat, harmful gas, dust and smoke can be quickly discharged from the workshop, and any poor ventilation problem can be completely solved at one time. The ventilation effect can be achieved within a few seconds from starting the fan.
Cooling principle
- Air cooling: the temperature of places requiring ventilation is higher than that of outdoor places due to the heat sources such as buildings, machinery and equipment, human body, etc. The negative pressure fan can quickly exhaust the hot air in the room, so that the room temperature and the outside temperature are at the same level, and the temperature in the workshop will not rise.
- The air flow takes away the heat of the human body, and the air flow accelerates the evaporation of sweat to absorb the heat of the human body, thus making the human body feel cool, as cool as the natural wind.
- The negative pressure fan has only the function of ventilation and cooling, and has no refrigeration function. Cooling is the feeling of human body. It is ignorant to say how much temperature the negative pressure fan can drop.
- It can be used with water curtain to control the temperature in the workshop within 28 ℃ in the hottest summer. However, the cool feeling of human body can be compared with that of air conditioner. People who face the water curtain for a long time will feel cold and can’t stand it.
Type classification
The main models include 1380 * 1380 * 400mm 1.1 kW, 1220 * 1220 * 400mm 0.75 kW, 1060 * 1060 * 400mm 0.55 kW, 900 * 900 * 400mm 0.37 kW. The rotational speed of all galvanized square negative pressure fans is 450 rpm, the motor is 4-pole 1400 rpm, the motor protection class is IP44, and the motor insulation class is B. Some smaller negative pressure fans have lost their significance as negative pressure fans due to low air volume, high noise and low exhaust efficiency, and will not be described here. The suction efficiency of relatively large negative pressure fan is higher and more energy-saving. The FRP bell-shaped negative pressure fan can be divided into belt type and direct-connected type according to the transmission structure. The belt type has a rotational speed of 370-450 rpm. The six-pole or four-pole aluminum shell motor has a protection grade of IP55 F insulation. The noise of the products with low rotational speed is relatively low. There are three types of direct-type motors: 12-pole 440 rpm, 10-pole 560 rpm and 8-pole 720 rpm. Belt type products are the most energy-saving, economical and durable, and direct-connected products are suitable for use in places where the belt type can not work, such as greasy dirt and corrosion to the belt. There are 6, 7, 3 and 5 blades of the GRP bell-shaped negative pressure fan. The blades are mainly made of die-cast aluminum alloy, engineering plastics (nylon plus fiber) and GRP. The blades with different blade numbers, blade angles and radians need to be reasonably matched with the speed and power. A single data cannot explain the suction performance of the fan.
Products Description
Applicable scope of negative pressure fan
It is suitable for workshops with high temperature or peculiar smell, such as heat treatment plants, casting plants, plastic plants, aluminum profile plants, shoe factories, leather goods plants, electroplating plants and various chemical plants. Applicable to labor-intensive enterprises: such as clothing factories, various assembly workshops, Internet cafes. The greenhouse for gardening is ventilated and cooled, and the livestock farm is cooled. It is especially suitable for places that need cooling and certain humidity. It is applicable to the field of warehousing and logistics. The negative pressure fan can be installed and used separately, or it can be used together with environmental protection air conditioning and industrial large fan. The combination of environmental protection air conditioning or industrial large fan under high temperature environment will have better effect, faster cooling and ventilation.
2. For exhaust fan
Generally speaking, the efficiency of exhaust fan (commonly known as Yanggu fan) is relatively poor. One exhaust fan can blow less than a few people, while the negative pressure fan is not, whether it is used on the ground or hanging in the air. Generally, 4 sets are used in a 1000 square meter workshop, which means that the room is full of wind.
Products Description
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Inspection items before installation of negative pressure fan
- Check whether the fiberglass negative pressure fan is damaged during transportation.
- Check whether all parts are loose during installation. If you are not sure, you can tighten them again
- When powering on, professional electricians should be invited to distribute power. The control switch should have phase loss protection, leakage protection, current overload protection, etc. The wires and cables used should be able to bear the load of motor current. The joints of wires should be insulated with electrical tape. All lines should be buried in the trunking and conduit according to the requirements of the specification.
- After the installation of the fiberglass negative pressure fan, it is necessary to clear all obstacles around before use.
Core Attributes and Features
1. Superior Airflow Efficiency
At the heart of the circulating exhaust cooling fan lies its exceptional ability to generate high airflow rates, facilitating rapid heat dissipation. This feature ensures that hot air is effectively removed from the target area, allowing for a consistent and optimal operating temperature to be maintained. This is particularly crucial in spaces where equipment generates substantial heat, such as data centers, industrial facilities, and laboratories.
2. Intelligent Temperature Regulation
Equipped with state-of-the-art temperature sensors and controls, the circulating exhaust cooling fan operates intelligently to adjust its speed and airflow based on real-time temperature readings. This dynamic regulation not only optimizes energy consumption but also guarantees a stable environment conducive to equipment longevity and operational efficiency.
3. Robust Build and Durability
Crafted from high-quality materials, this cooling fan boasts a robust construction that ensures longevity and resilience in challenging conditions. Its durable components are engineered to withstand the rigors of continuous operation while maintaining peak performance, making it a reliable solution even in demanding industrial settings.
4. Whisper-Quiet Operation
Despite its powerful capabilities, the circulating exhaust cooling fan operates with minimal noise emission. This is achieved through advanced aerodynamics and precision engineering, ensuring that the fan’s operation remains unobtrusive and conducive to peaceful work environments.
5. User-Friendly Installation and Maintenance
Designed for ease of use, this cooling fan features a hassle-free installation process that minimizes downtime during setup. Additionally, its modular design facilitates straightforward maintenance, allowing for quick component replacements and cleaning routines. This translates to reduced maintenance costs and enhanced operational continuity.
