Air inlet barrier in cooling tower

Abstract

The utility model provides an air inlet barrier in a cooling tower. According to the air inlet barrier, air inlet grooves are formed in one side of a barrier square plate at equal intervals in an array mode; the air outlet grooves are formed in the sides, away from the air inlet grooves, of the barrier square plates at equal intervals in an array mode, the air outlet grooves communicate with the bottoms of the air inlet grooves, an inclined channel formed by the air outlet grooves and the air inlet grooves can guide airflow entering the cooling tower, and the air inlet effect is enhanced; the inclined direction of the channel enables the sprayed cooling liquid to be splashed into the air outlet groove, close to one side of the interior of the tower body, of the barrier square plate, the cooling liquid rolls back into the cooling tower along the groove wall, the interception effect on the sprayed water is good, and the inner diameter of the two ends of the air channel formed by the air outlet groove and the air inlet groove is large, and the inner diameter of the middle is small; the cooling efficiency of the cooling tower is higher by reducing the air flow temperature, one side of the air inlet groove is blocked, when the cooling tower needs to maintain drainage, an iron bar or a roller is used for directly forcibly poking blockages into the cooling tower and discharging the blockages and cooling water together, and back-and-forth dismounting and cleaning are not needed.

Description

Technical Field

[0001] The utility model relates to the field of cooling towers, in particular to the technical field of air inlet fence design, and specifically to an air inlet fence in a cooling tower. Background Art

[0002] The function of the air inlet grille located above the water tank around the bottom of the cooling tower is to prevent the spray water inside the cooling tower from splashing out and reduce the water consumption of the cooling tower. The existing air inlet grille usually adopts a louver-type grille. Whether it is a single-layer louver or a double-layer louver arranged crosswise with each other, the efficiency of intercepting the spray water is poor. The spray water will splash out from the gaps between the louvers, and after long-term use, dust accumulation or debris such as fallen leaves will block the local air duct and affect the air intake efficiency of the cooling tower. However, cleaning is more troublesome, and sometimes the louvers need to be disassembled and assembled. Because the louvers are mostly thin and low in strength, violent washing can easily cause the louvers to deform and reduce their lifespan. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide an air inlet fence in a cooling tower to solve the difficulties of the prior art.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides an air inlet fence in a cooling tower, comprising:

[0005] Grille square plate 1;

[0006] Air inlet slots 2, the air inlet slots 2 are arranged in an array with equal spacing on one side of the grille square plate 1;

[0007] The air outlet slots 3 are arranged in an array with equal spacing on a side of the grille square plate 1 away from the air inlet slot 2, and each row of the air outlet slots 3 is arranged below the corresponding air inlet slot 2, and the air outlet slots 3 are communicated with the bottom of the air inlet slot 2.

[0008] According to a preferred embodiment, U-shaped channel steels 4 are provided around the grid square plate 1 through bolt connection, and tower body connection holes 5 are provided at equal intervals on the left and right sides of the U-shaped channel steel 4 .

[0009] According to a preferred embodiment, the air inlet slot 2 is hexagonal, the air inlet slot 2 is tilted downward, the top inclination angle of the air inlet slot 2 is greater than the bottom inclination angle, and the bottom inner diameter of the air inlet slot 2 is smaller than the top inner diameter of the air inlet slot 2.

[0010] According to a preferred embodiment, the air outlet slot 3 is hexagonal, and is tilted upward. The top tilt angle of the air outlet slot 3 is smaller than the bottom tilt angle, and the top inner diameter of the air outlet slot 3 is smaller than the bottom inner diameter of the air inlet slot 2 .

[0011] According to a preferred embodiment, the depth of the air inlet slot 2 is the same as the depth of the air outlet slot 3 .

[0012] The utility model adopts a grille square plate, an air inlet slot, an air outlet slot and a U-shaped channel steel. The inclined channel composed of the air outlet slot and the air inlet slot can guide the air flow entering the cooling tower to enhance the air intake effect, and the inclined direction of the channel makes the coolant sprayed out splash into the air outlet slot on the side of the grille square plate close to the inner side of the tower body, and the coolant will roll back into the cooling tower along the slot wall. Because there is no interception gap, the interception effect of the spray water is good, and the air duct composed of the air outlet slot and the air inlet slot has a large inner diameter at both ends and a small inner diameter in the middle, so that the air flow entering the outside of the cooling tower is first compressed and then released, which can speed up the gas flow rate and reduce the air flow temperature to make the cooling efficiency of the cooling tower higher. If one side of the air inlet slot is blocked, when the cooling tower needs to be maintained and drained, an iron bar or a stick can be used to force the blockage into the interior of the cooling tower and wait for it to be discharged together with the cooling water. There is no need to disassemble and clean it back and forth, which is simple and direct.

[0013] The best embodiment of the present invention will be described in more detail below in conjunction with the accompanying drawings so that the features and advantages of the present invention can be easily understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The display is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 Shown is a three-dimensional structural schematic diagram of another viewing angle of the utility model;

[0016] Figure 3 Shown is a mid-section view of the present utility model;

[0017] Description of symbols

[0018] 1. Grille square plate;

[0019] 2. Air inlet slot;

[0020] 3. Air outlet slot;

[0021] 4. U-shaped channel steel;

[0022] 5. Tower body connection hole; DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Compared with the embodiments shown in the drawings, feasible implementations within the scope of protection of the present invention may have fewer components, other components not shown in the drawings, different components, differently arranged components, or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0025] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not necessarily indicate quantity restrictions. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] The utility model provides an air inlet grille in a cooling tower, which is used in the design of the air inlet grille. The utility model does not limit the type of cooling tower to be installed, but the structure of the grille square plate 1, the air inlet slot 2, the air outlet slot 3 and the U-shaped channel steel 4 is particularly suitable for designing a clean and simple air inlet grille.

[0027] In general, the air inlet fence in the cooling tower proposed by the utility model mainly includes: a square grille plate 1, an air inlet slot 2, an air outlet slot 3 and a U-shaped channel steel 4, which can be seen in Figure 1 , which shows the arrangement relationship of the grille square plate 1, the air inlet slot 2, the air outlet slot 3 and the U-shaped channel steel 4.

[0028] The air inlet fence in the cooling tower proposed by the utility model is stuck in the square groove around the bottom of the cooling tower through the U-shaped channel steel 4 when in use, and the square plate 1 of the grille is limited by driving the tower nails into the tower body connection hole 5. The air inlet groove 2 and the air outlet groove 3 are respectively arranged on the left and right sides of the square plate 1 of the grille, wherein the air inlet groove 2 needs to be close to the direction of the outer side of the cooling tower body, such as Figure 3The air inlet slot 2 shown is arranged tilted downward, and the tilt angle of the top of the air inlet slot 2 is greater than the tilt angle of the bottom, so that the bottom inner diameter of the air inlet slot 2 is smaller than the top inner diameter of the air inlet slot 2, and the air outlet slot 3 is arranged tilted upward, and the tilt angle of the top of the air outlet slot 3 is smaller than the tilt angle of the bottom, so that the top inner diameter of the air outlet slot 3 is smaller than the bottom inner diameter of the air inlet slot 2, and the air inlet slot 2 and the air outlet slot 3 are connected at the bottom, so that the air outlet slot 3 and the air inlet slot 2 channel form a channel extending in an oblique downward direction toward the side of the grille square plate 1 away from the air inlet slot 2. The inclined channel can guide the air flow entering the cooling tower to enhance the air intake effect, and the tilt angle of the channel makes the sprayed coolant splash into the air outlet slot 3 on the side of the grille square plate 1 close to the inside of the tower body, because the coolant mostly falls on the surface cooler in the cooling tower to generate splashing, the surface cooler of all closed cooling towers will be designed above the grille square plate 1. The coolant sputtering track on the sputtering inverted grille square plate 1 is mostly arc-shaped and sputtered at a downward angle, so the coolant sputtered into the air outlet slot 3 will roll back into the cooling tower along the slot wall. Because there is no interception gap, the interception effect of the water spraying by the conventional louver-type grille is higher, and the inner diameters of the two ends of the air duct composed of the air outlet slot 3 and the air inlet slot 2 are large and the inner diameter in the middle is small, so that the air flow entering the outside of the cooling tower is first compressed and then released, which can speed up the gas flow rate and reduce the air flow temperature to make the cooling efficiency of the cooling tower higher. In addition, if the inner diameter of the air inlet grille is large, there will be no dust or debris stuck. If the inner diameter of the slot is small and one side of the air inlet slot 2 is blocked, you can wait until the cooling tower needs maintenance and drainage, and use an iron bar or a stick to force the blockage into the cooling tower and wait for it to be discharged together with the cooling water. There is no need to disassemble and clean it back and forth, which is simple and direct.

[0029] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An air inlet grille in a cooling tower, characterized in that: include: A grille square plate (1); Air inlet slots (2), the air inlet slots (2) being arranged in an array with equal spacing on one side of the grille square plate (1); Air outlet slots (3), the air outlet slots (3) are arranged in an array with equal spacing on a side of the grille square plate (1) away from the air inlet slots (2), each row of the air outlet slots (3) is arranged below the corresponding air inlet slot (2), and the air outlet slots (3) are in communication with the bottom of the air inlet slot (2).

2. The air inlet grille in the cooling tower according to claim 1, characterized in that: The grid square plate (1) is provided with U-shaped channel steels (4) on all sides thereof via bolt connection, and tower body connection holes (5) are provided at equal intervals on the left and right sides of the U-shaped channel steel (4).

3. The air inlet grille in the cooling tower according to claim 2, characterized in that: The air inlet groove (2) is hexagonal, the air inlet groove (2) is arranged to be inclined downward, the inclination angle of the top of the air inlet groove (2) is greater than the inclination angle of the bottom, and the inner diameter of the bottom of the air inlet groove (2) is smaller than the inner diameter of the top of the air inlet groove (2).

4. The air inlet grille in the cooling tower according to claim 3, characterized in that: The air outlet slot (3) is hexagonal, and is arranged to be inclined upward. The inclination angle of the top of the air outlet slot (3) is smaller than the inclination angle of the bottom, and the inner diameter of the top of the air outlet slot (3) is smaller than the inner diameter of the bottom of the air inlet slot (2).

5. The air inlet grille in the cooling tower according to claim 4, characterized in that: The depth of the air inlet slot (2) is the same as the depth of the air outlet slot (3).

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