A gas backflow device for a direct air cooling system fan bridge

Abstract

The utility model discloses a kind of direct air cooling system fan bridge frame gas backflow device, it is characterized in that, including: the interface of U-shaped main body along vertical direction is arranged as "U" shape, U-shaped main body is installed in bridge frame girder by several fixed units, and U-shaped main body is covered in the lower end of bridge frame girder;Wherein, each fixed unit includes: screw rod, gasket, hexagon nut and lock nut;One end of screw rod is sequentially passed through one end of U-shaped main body, bridge frame girder and the other end of U-shaped main body, gasket, hexagon nut and lock nut are sequentially fixed and installed in both ends of screw rod. By the application of the utility model, a kind of direct air cooling system fan bridge frame gas backflow device is provided, U-shaped main body is connected with the bridge beam of fan bridge, the eddy current induced by right angle is eliminated by the arc outer wall of U-shaped main body, so that the wind speed of tube bundle area is more uniform, and the invalid consumption of fan kinetic energy is reduced, improve overall working efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of air cooling in thermal power generation, and in particular to a gas backflow device for a fan bridge in a direct air cooling system. Background Technology

[0002] In direct air-cooled systems, the existing air-cooled fan bridge installation structure can no longer meet the needs of current projects. The right-angled edges of the fan bridge beams are prone to inducing eddies, resulting in uneven airflow in the tube bundle area. Furthermore, during operation, some of the fan's kinetic energy is consumed in ineffective turbulence, affecting the overall performance. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of this utility model is to provide a gas backflow device for a direct air-cooled system fan bridge, characterized in that it includes:

[0004] U-shaped main body, several fixed units;

[0005] The U-shaped body is arranged in a "U" shape along the vertical interface. The U-shaped body is installed on the cable tray beam through a number of fixing units, and the U-shaped body covers the lower end of the cable tray beam.

[0006] Each of the fixing units includes: a screw, a washer, a hexagonal nut, and a locking nut; one end of the screw passes through one end of the U-shaped body, the cable tray beam, and the other end of the U-shaped body in sequence, and the washer, the hexagonal nut, and the locking nut are sequentially fixedly installed at both ends of the screw.

[0007] The gas backflow device for the fan bridge of the direct air-cooled system described above is characterized in that the U-shaped main body is made of bent steel plate.

[0008] The gas backflow device for the fan bridge of the direct air-cooled system described above is characterized in that the thickness of the U-shaped body is 4mm.

[0009] The aforementioned direct air-cooled system fan bridge gas backflow device is characterized in that the inner wall radius of the bottom of the U-shaped body is half the distance between the two inner walls of the U-shaped body.

[0010] The above-mentioned direct air-cooled system fan bridge gas backflow device is characterized in that a plurality of the fixing units are arranged sequentially along the length direction of the U-shaped body, and the plurality of fixing units are arranged in two rows, one above the other.

[0011] The aforementioned direct air-cooled system fan bridge gas backflow device is characterized in that the screw is an M16 screw.

[0012] The gas backflow device for the fan bridge of the direct air-cooled system described above is characterized in that the vertical distance between two adjacent screws is less than or equal to 300mm.

[0013] The positive effects of the above technical solution compared with the existing technology are:

[0014] By applying this utility model, a gas backflow device for a direct air-cooled system fan bridge is provided. The U-shaped body is connected to the bridge beam of the fan bridge. The arc-shaped outer wall of the U-shaped body eliminates the eddies induced by right angles, making the wind speed in the tube bundle area more uniform, reducing the ineffective consumption of fan kinetic energy, and improving the overall working efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a gas backflow device for a direct air-cooled system fan bridge according to the present invention.

[0016] Figure 2 This is a top view of the gas backflow device for the fan bridge of a direct air-cooled system according to this utility model, in use.

[0017] Figure 3 This is a side view of the gas backflow device for a direct air-cooled system fan bridge in use according to the present invention.

[0018] 1. U-shaped main body; 2. Cable tray beam; 3. Screw; 4. Washer; 5. Hex nut; 6. Locking nut. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0020] The structures, proportions, and sizes illustrated in the accompanying drawings are solely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0021] like Figures 1 to 3 As shown, a preferred embodiment of a direct air-cooled system fan bridge gas backflow device is illustrated, comprising: a U-shaped main body 1 and several fixed units.

[0022] The U-shaped body 1 has a "U"-shaped cross-section along the vertical direction. The U-shaped body 1 is installed on the cable tray beam 2 through several fixing units, and the U-shaped body 1 covers the lower end of the cable tray beam 2. Each fixing unit includes: a screw 3, two washers 4, a hexagonal nut 5, and a locking nut 6. One end of the screw 3 passes through one end of the U-shaped body 1, the cable tray beam 2, and the other end of the U-shaped body 1 in sequence. The washers 4, hexagonal nuts 5, and locking nuts 6 are fixedly installed at both ends of the screw 3 in sequence.

[0023] In actual use, the cable tray beam 2 is installed at the upper end of the U-shaped body 1. The screw 3 passes through the cable tray beam 2 and is fixed at both ends by the washer 4, hexagonal nut 5, and locking nut 6. This also makes the connection between the cable tray beam 2 and the U-shaped body 1 more stable. The inner wall of the cable tray beam 2 is in close contact with the inner wall of the U-shaped body 1, thereby reducing the loss of airflow around the beam. The arc-shaped setting at the lower part of the U-shaped body 1 eliminates the right-angle separation vortex of the cable tray beam 2, making the airflow in the tube bundle area more uniform and improving the utilization rate of effective air volume.

[0024] Furthermore, a direct air-cooled system fan bridge gas backflow device is provided, wherein the U-shaped main body 1 is made of bent steel plate.

[0025] Furthermore, in a direct air-cooled system fan bridge gas reversal device, the thickness of the U-shaped body 1 is 4mm. Furthermore, the U-shaped body 1 is made of 4mm thick steel plate, resulting in higher strength and a longer service life.

[0026] Furthermore, in a direct air-cooled system fan bridge gas reversal device, the inner radius of the bottom of the U-shaped body 1 is half the distance between the inner walls of the two sides of the U-shaped body 1. Furthermore, the arc shape at the bottom of the U-shaped body 1 eliminates the vortices induced by the right angle of the bridge beam 2, resulting in a more uniform airflow velocity in the tube bundle area.

[0027] Furthermore, a gas reversal device for a direct air-cooled system fan bridge includes several fixing units arranged sequentially along the length of the U-shaped main body 1, in two rows, one above the other. Specifically, the two rows of fixing units improve the installation stability of the fixing units and the U-shaped main body 1. A screw 3 is provided on the U-shaped main body 1 every 2m, for a total of 12 screws 3, ensuring overall strength.

[0028] Furthermore, a direct air-cooled system fan bridge gas backflow device is provided, wherein the screw 3 is an M16 screw 3.

[0029] Furthermore, in a direct air-cooled system fan bridge gas backflow device, the vertical distance between two adjacent upper and lower screws 3 is less than or equal to 300mm.

[0030] The above description is merely a preferred embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A gas backflow device for a fan bridge in a direct air-cooled system, characterized in that, include: U-shaped main body, several fixed units; The U-shaped body is arranged in a "U" shape along the vertical interface. The U-shaped body is installed on the cable tray beam through a number of fixing units, and the U-shaped body covers the lower end of the cable tray beam. Each of the fixing units includes: a screw, a washer, a hexagonal nut, and a locking nut; one end of the screw passes through one end of the U-shaped body, the cable tray beam, and the other end of the U-shaped body in sequence, and the washer, the hexagonal nut, and the locking nut are sequentially fixedly installed at both ends of the screw.

2. The gas backflow device for a direct air-cooled system fan bridge according to claim 1, characterized in that, The U-shaped body is made of bent steel plate.

3. The gas backflow device for a direct air-cooled system fan bridge according to claim 1, characterized in that, The thickness of the U-shaped body is 4mm.

4. The gas backflow device for a direct air-cooled system fan bridge according to claim 1, characterized in that, The radius of the inner wall at the bottom of the U-shaped body is half the distance between the inner walls on both sides of the U-shaped body.

5. A gas backflow device for a direct air-cooled system fan bridge according to claim 1, characterized in that, The fixing units are arranged sequentially along the length of the U-shaped body, and the fixing units are arranged in two rows, one above the other.

6. The gas backflow device for a direct air-cooled system fan bridge according to claim 1, characterized in that, The screw is an M16 screw.

7. A gas backflow device for a direct air-cooled system fan bridge as described in claim 1, characterized in that, The vertical distance between two adjacent screws is less than or equal to 300mm.

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