CN202501764U - High static pressure axial flow fan horizontal outlet cross flow cooling tower - Google Patents

Abstract

The utility model relates to a high-static-pressure axial-flow fan laterally blowing air and a cross-flow cooling tower, which relates to a cooling tower design, in particular to the design and application of an indoor cooling tower with relatively large resistance to incoming and outgoing wind. In order to solve the technical defects of serious insufficient air intake and poor heat dissipation performance when the existing cooling tower is used in occasions where the air inlet and outlet resistance is large (especially when used indoors), a cooling tower body is included, and the cooling tower body is equipped with a It is provided with an air inlet surface, an air outlet surface, a water inlet, a water outlet, and a packing inside the main body of the cooling tower; it is characterized in that: the air outlet surface is provided with a high static pressure axial flow fan; the high static pressure The final axial flow fan includes an air cylinder, blades arranged in the air cylinder, a hub for fixing the blades, and a motor arranged in the air cylinder and coaxial with the hub to directly drive the blades. The cooling tower of the utility model adopts a high static pressure axial flow fan, which can not only ensure the air intake requirement, but also provide more residual pressure. The design of the utility model ensures that the cooling tower can operate normally under the condition of relatively large indoor static pressure resistance.

Description

High static pressure axial flow fan horizontal outlet cross flow cooling tower

technical field

The utility model relates to a design of a cooling tower, in particular to the design and application of an indoor cooling tower with relatively large wind resistance.

Background technique

The cooling tower is a widely used thermal equipment. Its function is to disperse the heat of high-temperature cooling water into the atmosphere through heat and mass exchange, thereby reducing the temperature of the cooling water. In mixing contact, the hot fluid is partially evaporated and cooled by itself by means of the water vapor partial pressure difference between the two fluids. The hot water from the main room is pumped through the pipeline with a certain pressure to press the circulating water into the sprinkler system of the cooling tower, and the water is evenly sprinkled on the filler through the small holes on the water distribution device; the dry air with low enthalpy Under the action of the fan, it enters the tower from the air inlet net. When the hot water flows through the surface of the filler, a water film is formed to exchange heat with the air. into the host.

It can be known from the working principle of the cooling tower that only when enough air enters the cooling tower can the heat exchange between hot water and air be sufficient to achieve the best heat dissipation effect.

At present, common cooling towers only use ordinary axial flow fans, refer to Figure 5 and Figure 6. External air enters the cooling tower from the air inlet surface 1, and leaves the cooling tower from the air outlet surface 2; hot water enters the cooling tower from the water inlet 3, and leaves the cooling tower from the water outlet 4; Thereby realizing the cooling effect.

Since common cooling towers use ordinary axial flow fans, the residual pressure they can provide is small. If the cooling tower is installed indoors, the air intake will be seriously insufficient due to the large static pressure resistance in the room, which will eventually cause cooling. The cooling performance of the tower is poor.

Contents of the invention

In view of this, the purpose of this utility model is to solve the technical defects of serious insufficient air intake and poor heat dissipation performance when the existing cooling tower is used in occasions where the air inlet and outlet resistance is large (especially when used indoors), and proposes a cooling tower that can The high static pressure axial flow fan used in the room with relatively high static pressure resistance cross-flow cooling tower.

In order to achieve the above purpose, the technical solution adopted is: a high static pressure axial flow fan horizontal outlet cross flow cooling tower, including a cooling tower main body, the main body of the cooling tower is provided with an air inlet surface, an air outlet surface, an air inlet The water outlet, the water outlet and the packing inside the main body of the cooling tower; it is characterized in that: the air outlet surface is provided with a high static pressure axial flow fan; the high static pressure axial flow fan includes a fan cylinder, located on the The blades in the air duct, the hub for fixing the blades, and the motor arranged in the air duct and coaxial with the hub directly drive the blades.

As a further improvement to the technical solution of the utility model, the technical solution includes: the number of blades of the high static pressure axial flow fan is 6 or more.

The beneficial effects of the utility model are: the cooling tower of the utility model adopts a high static pressure axial flow fan, which can not only ensure the air intake requirement, but also provide more residual pressure. The design of the utility model ensures that the cooling tower can operate normally under the condition of relatively large indoor static pressure resistance.

Description of drawings

Fig. 1 is a three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is a schematic view of the side structure of the utility model.

Fig. 3 is a three-dimensional structure schematic diagram of another angle of the present invention.

Fig. 4 is a schematic structural view of the high static pressure axial flow fan of the present invention.

Fig. 5 is a schematic cross-sectional structure diagram of an existing cooling tower.

Fig. 6 is a schematic diagram of the three-dimensional structure of the existing cooling tower.

In the figure, 1: air inlet surface; 2: air outlet surface; 3: water inlet; 4: water outlet; 5: packing; 6: ordinary axial flow fan; 7: high static pressure axial flow fan; 8: hub; 9 : blade; 10: motor; 11: blower.

Detailed ways

The structure of the utility model will be further described below in conjunction with a preferred specific embodiment of the utility model with accompanying drawings.

With reference to Fig. 1, Fig. 2 and Fig. 3, the utility model comprises a cooling tower main body, and described cooling tower main body is provided with air inlet surface 1, air outlet surface 2, water inlet 3, water outlet 4 and is located at cooling tower. Packing 5 inside the main body of the tower; a high static pressure axial flow fan 7 is provided on the air outlet surface 1; the high static pressure axial flow fan 7 refers to an axial flow fan with a static pressure value of at least 250Pa.

With reference to Fig. 4, described high static pressure axial flow fan 7 comprises air cylinder 11, is located in the air cylinder 11 6 or more blades 9, the hub 8 of fixed blade 9, and is located in the air cylinder 11 A motor 10 directly drives the blades 9 coaxially with the hub 8 .

Referring to FIG. 1 , FIG. 2 and FIG. 3 , hot water flows into the main body of the cooling tower from the water inlet 3 and leaves the main body of the cooling tower from the water outlet 4 . The air enters the main body of the cooling tower through the air inlet surface 1, exchanges heat with hot water in the filler 5, and then leaves the main body of the cooling tower through the air outlet surface 2. Since the cooling tower is installed indoors, the air needs to overcome greater resistance before entering the main body of the cooling tower and after leaving the main body of the cooling tower. For example, air may pass through intake louvers before entering a cooling tower, pass through a muffler and some subsequent ducting before finally exiting outside. Coupled with the resistance inside the main body of the cooling tower, the static pressure resistance in the whole process is relatively large. The structure of this type of high static pressure axial flow fan 7 determines that it can provide a large residual pressure while ensuring the air intake, can successfully overcome the above-mentioned various static pressure resistances, and finally ensure better heat dissipation performance.

Claims (2)

1. the horizontal air-out cross flow cooling tower of high static pressure axial flow blower includes a cooling tower main body, the filler that described cooling tower main body is provided with air intake surface, outlet air surface, water inlet, delivery port and is located at the cooling tower body interior; It is characterized in that: described outlet air surface is provided with high static pressure axial flow blower; Described high static pressure axial flow blower includes air duct, is located at the blade in the air duct, the wheel hub of fixed blade, and be located in the air duct motor with the coaxial direct driven vane of wheel hub.

2. the horizontal air-out cross flow cooling tower of high static pressure axial flow blower according to claim 1, it is characterized in that: the blade quantity of described high static pressure axial flow blower is more than 6 or 6.

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