FAQ

The shunt screw compressor has no built-in oil filter. The lubrication system of the parallel screw compressor is equipped with a separate oil filter to filter the circulating lubricating oil. This keeps the interior of the compressor clean and prevents particulate matter from affecting its normal operation. Therefore, the shunt screw compressor does not have a built-in oil filter.

Three different power of this machine, he can not be connected in parallel, if they are connected together, then they will certainly affect each other's work, the specific impact of which recommendations you consulting company customer service understand.

1, low system operating costs Condensing temperature within the wet bulb design temperature of 8.3 ° C compressor power saving at least 10% of the power consumption, and than the air-cooled condenser system saving 30% power consumption, fan power is 1/3 of the air-cooled condenser fan power. Due to the lower pump head and reduced water flow, the pump power is about 25% of the pump power required in an ordinary cooling tower/condenser system.
2, save the initial investment the cooling tower, condenser, circulation pool, circulation pump and water pipe integrated into one, which reduces the cooling tower, circulation pump and water pipe and other equipment, but also reduces the cost of processing and installation of individual components. Efficient heat transfer mode, so it can effectively reduce the heat transfer area, the number of fans and the power consumption of the fan motor. 3 Save space Valuable space is saved by combining the condenser coil and cooling tower into one, and large pumps and pipes are not required. Only about 50% of the windward area of an air-cooled condenser of the same specification is required.

The classification of closed cooling towers is as follows:
Cross-flow closed cooling tower: the inlet direction of the cooling tower is at a right Angle to the direction of the water flow, which is suitable for civil central air conditioning, with low noise, simple structure and easy maintenance.
Countercurrent type closed cooling tower: the inlet direction of the cooling tower and the direction of the water flow are opposite, the footprint is small, but the noise is slightly larger, suitable for industrial cooling towers, such as casting and forging, heat treatment industry.
Composite flow closed cooling tower: the inlet direction and flow direction of the cooling tower have both cross-flow and counter-flow components, which is suitable for the cooling of high temperature fluids or projects with large temperature difference, relatively high energy consumption and large volume.

Closed cooling tower (also known as evaporative air cooler, closed cooling tower or closed cooling tower) is a tubular heat exchanger placed in the tower, through the circulation of air, spray water outside the pipe and the heat exchange of circulating water inside the pipe to ensure the cooling effect. Because the circulating water is closed in the pipe, it can ensure that the water quality is not polluted, protect the efficient operation of the main equipment, and extend the service life. When the outside temperature is low, the sprinkler system can be stopped to save water. With the implementation of the national energy conservation and emission reduction policy and the increasing shortage of water resources, in recent years, closed cooling towers have been widely used in iron and steel metallurgy, power electronics, machining, air conditioning systems and other industries. The working principle of the closed cooling tower, referred to as closed cycle cooling, is composed of the following systems:
1. Internal circulation: The cooled circulation medium flows through the closed tube bundle to cool down, completely isolated and closed, and does not contact with the outside world.
2. External circulation: also called spray water, drawn from the top of the tower, with a low head and large flow spray pump evenly sprayed to the outside of the heat exchange tube bundle, covered with a thin film of water, heated by the high temperature medium in the tube. The water film absorbs heat energy and converts it into latent heat of vaporization, which evaporates into water vapor and takes away heat energy.
3. Air exchange system: dry cold air enters from the lower part of the heat exchange tube bundle, passes through the tube bundle at high speed, convective heat transfer with the tube wall, and the water vapor is wrapped into high enthalpy gas, discharged by the axial flow fan and sent out of the tower, so as to achieve the purpose of transferring heat to the tower.

The open and closed type of cooling tower refers to whether the cooling water is in direct contact with the air. Open cooling tower refers to the cooling water in the tower through packing, sprinkler and other ways to form water film or water droplets, and direct contact with the air for heat exchange cooling tower. The closed cooling tower refers to the cooling tower in which the cooling water is isolated from the air for heat exchange through the tube and shell type or plate heat exchanger. In general, the cooling effect of open cooling towers is higher than that of closed cooling towers, but they are also more susceptible to water quality and environmental impacts. The cooling effect of closed cooling tower is lower than that of open cooling tower, but it can also ensure the safety of water quality and equipment.
The working principle of the open cooling tower is to use the heat exchange of water and air, so that a part of the water evaporates, taking away the heat in the water, thereby reducing the temperature of the water. The characteristics of the open cooling tower are:
The cooling effect is high, because the contact area between water and air is large, the heat transfer coefficient is high, and the latent heat of evaporation is large.
The loss of water is large, because water evaporation, drift and sewage will consume water, and new water needs to be constantly replenished.
Water quality is highly variable because water concentration, pollution and biological growth all affect water quality, requiring continuous addition of chemicals and water treatment.
The environmental impact is large, because the contact between water and air will be affected by air temperature, humidity, wind speed, wind direction and other factors, and it is necessary to adjust the operating parameters according to environmental changes.
The working principle of the closed cooling tower is to use the heat exchange between the air and the heat exchanger, so that the water in the heat exchanger is isolated from the air, and the heat is transferred through the wall of the heat exchanger, thereby reducing the temperature of the water. The closed cooling tower is characterized by:
The cooling effect is low because the contact area between the air and the heat exchanger is small, the heat transfer coefficient is low, and there is no latent heat of evaporation.
The water loss is small, because the water is isolated from the air, there is no evaporation, drift and sewage of water, and there is no need to add new water.
The water quality changes little, because the water is isolated from the air, there is no water concentration, pollution and biological growth, no need to add chemicals and water treatment.
The environmental impact is small, because the contact between the air and the heat exchanger is not affected by air temperature, humidity, wind speed, wind direction and other factors, and it is not necessary to adjust the operating parameters according to environmental changes.

1, completely environmentally friendly products: it is no compressor, no cold coal, pollution-free environmentally friendly products, which is the use of outdoor fresh air evaporative cooling principle and indoor convection air exchange to achieve ventilation and cooling purposes.
2, low operating cost, can quickly recover the investment: compared with the traditional compressor air conditioning series, the power consumption is only 1/8-1/10. 3, the cooling effect is obvious: in humid areas, generally can achieve a significant cooling effect of about 5-9℃; In particularly hot and dry areas, the temperature drop can reach about 10-15 ° C.
4, the investment cost is low, does not occupy the building area: compared with the traditional compressor air conditioning system, the cost is less than half, and the equipment does not occupy any building area.
5, keep the indoor air clean, clean, sanitary: open doors and Windows for ventilation is a major feature of evaporative air conditioners, 100 percent fresh air replacement method so that people are always in the natural environment, completely without the traditional air conditioning brought by the sense of discomfort, the dirty air discharged outside.
6, easy maintenance and installation: the system is simply, easy to install and maintain, without professional maintenance personnel.
7, prevent dry air: it can moisten the skin, and has certain benefits for the skin.
8, low noise, low vibration: at present, the air conditioner in the domestic similar products in the low noise, can let us unknowingly get fresh and natural cool air; The body itself does not dissipate heat to its surroundings.