CN209230337U - Novel wet-type air cooler - Google Patents

Abstract

The utility model relates to a novel wet-type air cooler belongs to air cooler equipment technical field, including air cooler casing and tube bank, the fan is installed at the casing top, spray pipe is installed to the fan below, spray pipe installs the shower head in the below, tube bank installs in the below of shower head, there is the high temperature medium entry casing one side, the opposite side has the export of low temperature medium, the two links to each other by tube bank and heat transfer pipeline, ventilation unit is installed to casing one side, the casing bottom sets up circulation spray water tank, circulation spray water tank top is equipped with moisturizing mouth and overflow mouth, the water pump is installed to circulation spray water tank one side, water pump and drinking-water pipeline sealing connection. The utility model discloses an above-mentioned device's common regulation to the different medium of entry temperature, all can make exit temperature reach design temperature, and also can guarantee exit temperature's invariant under extreme temperature, and the regulative mode is nimble, and the cooling effect is stable, and area is little, can put indoor.

Description

A new type of wet air cooler

technical field

The utility model relates to the technical field of air cooler equipment, and mainly relates to a novel wet air cooler.

Background technique

The air cooler is a heat exchange equipment for cooling the process fluid medium in the industrial production process, and it is mostly used in the fields of petroleum, chemical industry, pharmaceutical and environmental protection. Existing air coolers are usually composed of tube bundles, fans and brackets. Ambient air is used as the refrigerant, and the air sweeps the tube bundles to cool the high-temperature process fluid in the tubes. At the same time, heat is brought into the environment by the air swept outside the tube bundles. Since the heat transfer coefficient of the air side is much smaller than that of the fluid, in order to achieve the ideal heat transfer effect, it is often necessary to increase the heat transfer area and adopt finned tubes and other technical means to enhance heat transfer, resulting in excessive equipment volume , High wind resistance and other issues. If the air cooler is placed outdoors, the cooling effect will be affected by the external ambient temperature, especially in winter in the north, where the temperature is low and the medium in the pipe is easy to freeze, which may cause damage to the equipment. Corresponding antifreeze measures must be taken. Therefore, the investment and maintenance costs will increase.

Most of the air coolers are suitable for cooling when the outlet temperature of the medium is slightly higher than the ambient temperature. When the outlet temperature of the medium is low, in order to ensure the stability of the cooling effect, the cooling tower can be used as a subsequent cooling equipment. The cooling tower uses water as a circulating cooling system. It absorbs heat from the system and discharges it into the atmosphere, but it no longer participates in the cooling cycle after entering the atmosphere. Therefore, it consumes a lot of water and needs to be replenished frequently. Increased operation and maintenance costs.

Contents of the invention

In view of the above problems, the utility model provides a new type of wet air cooler, which combines the advantages of existing air coolers and cooling towers, and adds a circulating spray system on this basis, further humidifying and cooling to enhance heat transfer; on the other hand, using appropriate The pitched finned tubes ensure air circulation to solve the problem of increased wind resistance caused by increasing the heat transfer area. At the same time, it is beneficial to the liquid film to drain water and enhance the cooling effect. The internal ventilation of the air cooler is jointly adjusted by the fan and the ventilation device to ensure Constant medium outlet temperature.

The technical solution adopted by the utility model to solve its technical problems is: a new type of wet air cooler, including an air cooler housing and a tube bundle, a fan is installed on the top of the housing, and a spray pipeline is installed below the fan , and a sprinkler head is installed under the spray pipeline, the tube bundle is installed under the sprinkler head, a high-temperature medium inlet is installed on one side of the casing, and a low-temperature medium is installed on the other side of the casing outlet, and the high-temperature medium inlet and low-temperature medium outlet are connected by tube bundles and heat exchange pipelines, a ventilation device is installed on one side of the housing, and a spray pipeline is installed above the ventilation device, and the spray pipeline A sprinkler head is installed on the top of the shell, a circulating spray water tank is provided at the bottom of the housing, and a water replenishment port and an overflow port are provided above the circulating spray water tank, and a water pump is installed on one side of the circulating spray water tank. The water pump is sealingly connected with the suction pipeline.

The tube bundle is a smooth tube or a finned tube.

The ventilation device is composed of an air inlet and shutters.

The beneficial effect of the utility model is that the new type wet air cooler, firstly, on the basis of the original air cooler, by welding the fins outside the tube bundle, the appropriate fin pitch can increase the heat transfer outside the tube At the same time, it reduces wind resistance and energy consumption. A circulating spray water tank is added at the bottom. The sprayed circulating water forms a liquid film outside the tube bundle. The evaporation of the liquid film takes away a large amount of heat, which strengthens the heat transfer effect and improves the cooling efficiency. Secondly, for media with different inlet temperatures, the outlet temperature of the media can reach the design temperature through the joint adjustment of the fan, circulating spray water tank and ventilation device, even under the most unfavorable external environment temperature. Work requirements, flexible adjustment methods, and stable cooling effect. For example, when the ambient temperature is low in winter, the air intake can be appropriately reduced, and the spraying can be stopped. On the basis of ensuring the work requirements, the consumption of power and other resources is reduced. In the summer environment When the temperature reaches the limit, the fan and ventilation device can be adjusted to take in the air in turn, increasing the amount of spraying water, increasing the humidity inside the shell, and speeding up the cooling of the high-temperature medium in the tube; finally, the equipment is independent, compact, and occupies a small area. Putting it indoors, there is no need to add cold protection measures, which reduces investment costs and operation and maintenance costs.

Description of drawings

Fig. 1 is the utility model schematic diagram;

Fig. 2 is a schematic diagram of the ventilation device of the present invention.

In Figure 1, 1. Shell, 2. Spray head, 3. High temperature medium inlet, 4. Tube bundle, 5. Heat exchange pipeline, 6. Water supply port, 7. Circulating spray water tank, 8. Water pump, 9. Low temperature Medium outlet, 10, overflow port, 11, ventilation device, 12, pumping pipeline, 13, spray pipeline, 14, fan.

11-1, air inlet among Fig. 2, 11-2, shutter.

Detailed ways

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

A new type of wet air cooler as shown in Figure 1 includes an air cooler housing 1 and a tube bundle 4, a fan 14 is installed on the top of the housing 1, and a spray pipeline 13 is installed below the fan 14, and A sprinkler head 2 is installed under the spray pipeline 13, the tube bundle 4 is installed under the shower head 2, a high temperature medium inlet 3 is installed on one side of the housing 1, and the other side of the housing 1 A low-temperature medium outlet 9 is installed on the side, and the two are connected by a tube bundle 4 and a heat exchange pipeline 5. A ventilation device 11 is installed on one side of the housing 1, and a spray pipeline 13 is installed above the ventilation device 11. , and the spray head 2 is installed above the spray pipeline 13, the bottom of the housing 1 is provided with a circulating spray water tank 7, and the top of the circulating spray water tank 7 is provided with a replenishment port 6 and an overflow port 10, A water pump 8 is installed on one side of the circulating spray water tank 7 , and the water pump 8 is in sealing connection with the pumping pipeline 12 .

As shown in FIG. 2, the ventilation device is composed of an air inlet 11-1 and shutters 11-2.

When working, the high temperature fluid to be cooled enters the tube bundle 4 through the high temperature medium inlet 3, and the fan 14 is turned on to adjust the air intake. The circulating water in 7 is pumped through the pumping pipeline to the spray head 2 below the spray pipeline 13 for spraying. The liquid film sprayed on the tube bundle 4 absorbs a large amount of heat and then evaporates into the air. The high temperature in the tube bundle 4 The medium is cooled, and the cooled high-temperature medium flows to the low-temperature medium outlet 9 through the heat exchange pipeline 5, and the evaporated spray water is removed, and the rest enters the circulating spray water tank 7 for recycling, and the reduced water volume passes through the replenishment port 6 Replenish to the circulating spray water tank, when supplemented to a certain height, start the overflow port 10, stop replenishing water, keep the circulating water within a certain height, to ensure its recycling and stable operation of the equipment.

Claims (3)

1. a kind of Novel wet-type air cooler, including air cooler shell (1) and tube bank (4), wind is installed at the top of the shell (1) Machine (14) is equipped with spray pipeline (13) below the blower (14), and is equipped with spray head below spray pipeline (13) (2), the tube bank (4) is mounted on the lower section of spray head (2), and the side of the shell (1) is equipped with high-temperature medium entrance (3), The other side of the shell (1) is equipped with cryogenic media outlet (9), and the two is connected by restraining (4) with heat exchanging pipe (5), institute The side for stating shell (1) is equipped with ventilation device (11), is equipped with spray pipeline (13) above the ventilation device (11), and It is equipped with above spray pipeline (13) spray head (2), the bottom of the shell (1) is provided with circulated sprinkling water tank (7), and follows The top of ring spray spraying water tank (7) is equipped with water supplement port (6) and overflow port (10), and the side of the circulated sprinkling water tank (7) is equipped with Water pump (8), water pump (8) and draw water pipeline (12) are tightly connected.

2. a kind of Novel wet-type air cooler according to claim 1, which is characterized in that the tube bank (4) is light pipe or wing Piece pipe.

3. a kind of Novel wet-type air cooler according to claim 1, which is characterized in that the ventilation device (11) include into Air port and shutter.