The principle of the cooling tower of the water turbine, the working principle of the circulating wa

Hello Qin Jize! A circulating water cooling tower is a type of heat exchanger that uses the cooling effect of circulating water to help cool the heat. The working principle of the circulating water cooling tower is:

1.The circulating water enters from the bottom of the cooling tower, flows inside the cooling tower, and the heat is transferred from the circulating water to the internal structure of the cooling tower, thereby extracting the heat from the circulating water. 2.

After the heat inside the cooling tower is pumped out, the circulating water flows out from the top of the cooling tower and returns to the bottom of the cooling tower at a lower temperature. 3.After the internal heat of the cooling tower is extracted, the outside air of the cooling tower passes through the internal structure of the cooling tower, thus extracting the heat from the internal structure of the cooling tower.

4.After the internal heat of the cooling tower is extracted, the air outside the cooling tower is returned to the external empty lead flush of the cooling tower at a lower temperature to complete the cooling process.

Cooling structures in Tuanling at the cooling water cooling place generally use cooling pools or cooling towers. Its working process is as follows: the circulating water is transported to the water supply main pipe by the water pump, and then enters the production equipment that needs to be cooled respectively, flows through the part that needs to be cooled, and then collects the pure simplicity to the return water main pipe, and sprays down through the water distribution pipe above the cooling water tower.

When the fan at the top of the cooling tower is running, the return water flows back into the storage tank after sufficient heat exchange with the air flow in the packing layer. The cooling equipment is divided into open type and closed type, so the circulating cooling water system is also divided into two categories: open type and closed type. Open systems are complex to design and operate.

There are two types of open cooling equipment: cooling pools and cooling towers, both of which mainly rely on the evaporation of water to reduce the water temperature.

In addition, cooling towers often use air.

A cooling tower is a kind of equipment that uses the contact between water and air to dissipate waste heat generated in industry or refrigeration and air conditioning through evaporation. The basic principle is: the dry and low enthalpy air enters the cooling tower from the air inlet network after being pumped by the fan; The high-temperature water molecules with high partial pressure of saturated steam flow to the air with low pressure, and the water with high enthalpy value of moist heat is sprinkled into the tower by the self-seeding system.

When the water droplets are in contact with the air, on the one hand, due to the direct heat transfer between the air and the water, on the other hand, due to the pressure difference between the water vapor surface and the air, the evaporation phenomenon occurs under the action of pressure, which brings the latent heat of evaporation to the evaporation, and the heat in the water is taken away, that is, the evaporation heat transfer, so as to achieve the purpose of cooling. The working process of the cooling tower: The working process of the circular counterflow cooling tower is taken as an example

The hot water autonomous machine room presses the circulating water into the water sowing system of the cooling tower through the pipe, horizontal throat, curved throat and central throat at a certain pressure through the water pump, purifies the workbench, and evenly spreads the water on the filler through the small hole in the water sowing pipe; The dry air with low Han value enters the tower from the bottom into the air network under the action of the fan, and the hot water flows through the surface of the packing to form a water film and air for heat exchange, and the hot air with high humidity and high Han value is pumped out from the top, and the cooling water drops into the bottom basin and flows into the main engine through the outlet pipe. Under normal circumstances, the air entering the tower is dry and low wet bulb temperature air, there is obviously a concentration difference and kinetic energy pressure difference between water and air, when the fan is running, under the action of static pressure in the tower, the water molecules continue to evaporate into the air and become water vapor molecules, and the average kinetic energy of the remaining water molecules will be reduced, so that the temperature of the circulating water will drop. From the above analysis, it can be seen that evaporative cooling has nothing to do with the temperature of the air (commonly referred to as the dry bulb temperature) being lower or higher than the water temperature, as long as the water molecules can continuously evaporate into the air, the water temperature will decrease.

However, the evaporation of water into the air does not go on endlessly. When the air in contact with water is not saturated, water molecules continue to evaporate into the air, but when the air on the water-vapor contact surface reaches saturation, water molecules cannot evaporate, but are in a state of dynamic equilibrium, low temperature thermostat. The number of water molecules that evaporate is equal to the number of water molecules that are returned to the water from the air, and the water temperature remains the same.

It can be seen that the drier the air in contact with the water, the easier it is for evaporation to take place and the easier it is for the water temperature to decrease in the thermostat.

Many riverside factories will use drinking water as cooling water, and then discharge it into the river after heat conduction, but some factories actually do not have this condition, they will use cooling towers, so how many people know how cooling towers work?

The air-cooled chiller does not have a cooling tower, the unit is placed in the open air, and the condenser of the air-cooled unit is driven directly by the fan. The unit should be connected to the chilled water pump, and there is a chilled water system pipeline to send the cooled chilled water to the place where it is needed.

If your unit has a cooling tower, we usually call it a water-cooled air cabinet. Blowing cold air directly, the air supply volume is large, and the blowing distance is long. To connect the cooling water pump, there should be a cooling tower outside.

After the water cools the condenser of the unit, it flows to the cooling tower, and slowly flows from the upper part of the cooling tower to the water tray of the cooling tower along the packing. There is a fan at the top of the cooling tower, and the wind blows upwards from the lower part of the cooling tower, forming a counter-current cooling flow. In this process, the water evaporates, taking away a lot of heat, and the temperature of the water flowing to the cooling tower tray drops.

Then it flows to the unit condenser and cools the unit. This process involves continuous evaporation of water, so the cooling tower is constantly replenished with water.

The hot water that rises in temperature after cooling equipment or product flows into the hot water pool, flows into the cooling tower for cooling after being lifted by the hot water pump, flows into the cold water pool after cooling, and then is sent to the equipment or product that needs to be cooled by the cold water pump for cooling, and the hot water with the increased water temperature flows into the hot water pool again, so that the reciprocating cycle is carried out continuously. - Tengjia cooling tower.

Working principle of chiller (picture):

Do you have an open tower or a closed tower, a countercurrent or a compound flow.

What is the principle of heat extraction in a heat pump unit?

The heat pump unit equipment is specially equipped with a kind of heat-absorbing medium - refrigerant, which is lower than minus 20 in the state of liquefaction, and there is a temperature difference with the outside temperature, therefore, the refrigerant can absorb the heat energy of the outside world, evaporate and vaporize inside the evaporator, improve the temperature of the refrigerant through the work of the compressor in the heat pump unit, and then transform the refrigerant from the vaporization state to the liquefied state through the condenser, and in the conversion process, release a large amount of heat, transfer to the reserve water in the water tank, make the water temperature rise, and achieve the purpose of making hot water. This is what makes this product unique and the reason for its market potential.

The cooling tower is a kind of equipment for heat exchange in direct contact between water and air, which is mainly composed of fans, motors, packing, water sowing systems, tower bodies, water pans, etc., mainly by the air with a relatively low temperature under the action of the fan and the water in the packing for heat exchange, so as to achieve the purpose of reducing the temperature of the refrigerant.

I don't know what exactly you're asking ... Heat pumps are only connected to cooling towers under refrigeration conditions. Maybe you're asking about the principle of a water source heat pump.

How it works:

By spraying circulating water onto the fiberglass filler. The filler provides a larger contact surface for heat transfer through the contact between water and air. Then there is a fan to drive the air flow in the tower to circulate, and bring out the hot air flow after heat exchange with water, so as to achieve cooling.

The fill may consist of multiple, mainly vertical, wet-surface water propagation (fill) or lateral splash features creating many cascades of small water droplets with a large surface area (splash).

The air is drawn by circulating water cascade outside the heat pipes, providing an opening similar to evaporative cooling in a cooling tower. The heat flow in operation is heated from the internal fluid circuit, through the coil tube wall, through the outer circuit, and then by some evaporation of air and water, into the atmosphere.

The air in the counter-current cooling tower moves downward as it passes upwards through the fill or tube bundle. As the cross-flow cooling tower air moves horizontally through the fill, the water moves downward.

The principle of the cooling tower: the water to be cooled is dispersed through the water dispersion system, on the one hand, the honeycomb heat sink further disperses the water from the water dispersion pipe, on the other hand, the air of the cooling fan moves upward from the lower part of the heat sink to cool the water (opposite to the direction of water flow), and the cooled water falls into the water collection tray and then flows out from the lower water outlet. - Tengjia cooling tower.

Oasis Ice Peak Counterflow Closed Cooling Tower Product Animation.

Air-cooled air conditioners use air as a way to dissipate heat Water-cooled air conditioners use cooling towers to dissipate water to ambient temperature! The water pump feeds water into each host, and the water that comes out after helping the host dissipate heat is 4 5 degrees Celsius! It's pumped back to the top of the cooling tower, and it rains down, and it's the ambient temperature!

Recirculate to each unit for heat dissipation! And so on!

Cooling tower principle: The cooling tower is composed of a body, a water collection tray, a silencing blanket, a honeycomb heat sink, a water dispersion system, a water baffle, a cooling fan, an escalator, etc. Cooling tower principle:

On the one hand, the honeycomb heat sink further disperses the water from the water dissipation pipe, and on the other hand, the air of the cooling fan moves from the lower part of the heat sink to the upper part to cool the water (opposite to the direction of water flow), and the cooled water falls into the water collection tray and then flows out from the lower water outlet. There is also a water baffle on the upper part of the water dispersion system, because the air of the cooling fan moves from the bottom to the top, the flow rate of the air without the baffle will bring the cooling water to the air, resulting in the loss of cooling water. The silencing blanket is installed on the upper part of the bottom water collection pan, its function is to reduce the splash of water falling from the heat sink, and the escalator is mainly used to check and repair the cooling fan.

The cooling principle of the cooling tower has two aspects: on the one hand, it is to cool the water by absorbing the latent heat of evaporation by evaporation of part of the water in the cooling tower, and on the other hand, when the water temperature is higher than the air temperature, the water is cooled by contact heat conduction.