Anti-icing structure suitable for reverse flow type cooling tower

Abstract

The utility model discloses an anti-icing structure suitable for a reverse flow type cooling tower, and belongs to the technical field of cooling towers. Oppositely arranged air inlet grilles and oppositely arranged side plates are fixed on the frame, a wind shielding plate is arranged in the frame, two ends of the wind shielding plate are respectively connected with the oppositely arranged side plates, a flow guide plate a is arranged at the top of the air inlet grilles, the flow guide plate a comprises a vertical fixed surface a fixed with the top of the frame, and the bottom of the vertical fixed surface a is connected with an inclined flow guide surface a inclined downwards. The bottom of the inclined diversion surface a is connected with a horizontal extension diversion surface. According to the cooling tower, water drops can be effectively prevented from splashing onto the air inlet grille, so that the air inlet grille is prevented from being frozen and blocked, smooth air inlet in the cooling tower is ensured, the cooling performance and the cooling efficiency of the cooling tower in winter operation are ensured, the power consumption of the cooling tower in winter operation is reduced, and waste of electric energy and water resources is reduced.

Description

Technical Field

[0001] The utility model relates to an anti-icing structure suitable for a counter-flow cooling tower, belonging to the technical field of cooling towers. Background Art

[0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and discharge it into the atmosphere to lower the water temperature. It uses water and air flow to exchange heat and generate steam, which evaporates and takes away heat, thereby achieving evaporative heat dissipation, convection heat transfer, or radiation heat transfer to dissipate waste heat generated in industry or refrigeration and air conditioning, and to lower the water temperature through an evaporative heat dissipation device to ensure the normal operation of the system.

[0003] Since the winter temperature in the north is very low, ice often forms on the air inlet side of the cooling tower in the north. Figure 1 As shown, since ice on the air inlet side will block the air inlet of the cooling tower, the amount of air for heat exchange entering the cooling tower through the air inlet will be reduced, which will greatly affect the cooling efficiency of the cooling tower in winter operation; and as the cooling tower runs, the ice accumulated on the air inlet grille becomes larger and larger, and the weight increases accordingly, which can easily cause damage to the air inlet grille, causing it to lose its air-guiding efficiency. The ice can loosen and fall into the cooling tower, easily damaging other components in the tower, seriously affecting the service life and working performance of the equipment. Utility Model Content

[0004] In order to solve the defects existing in the prior art, the purpose of the utility model is to provide an anti-icing structure suitable for a counterflow cooling tower, so as to avoid the influence of ice on the normal operation of the cooling tower due to ice on the air inlet grille.

[0005] The technical solution of the utility model is: an anti-icing structure suitable for a counterflow cooling tower, comprising a square frame, on which relatively arranged air inlet grilles and relatively arranged side panels are fixed, a wind shield is arranged in the frame, both ends of the wind shield are respectively connected to the relatively arranged side panels, a guide plate a is arranged on the top of the air inlet grille, the guide plate a comprises a vertical fixing surface a fixed to the top of the frame, the bottom of the vertical fixing surface a is connected to a downwardly inclined inclined guide surface a, and the bottom of the inclined guide surface a is connected to a horizontally extended guide surface.

[0006] The vertical fixing surface a is fixed to the top of the frame by fixing bolts.

[0007] The frame is provided with a support frame for supporting the inclined guide surface a.

[0008] A guide plate b is provided on the top of the side plate, and the guide plate b includes a vertical fixing surface b fixed to the top of the frame, the bottom of the vertical fixing surface b is connected to a downwardly inclined guide surface b, and the bottom of the inclined guide surface b is connected to a vertically extended guide surface.

[0009] The bottom end of the vertically extended guide surface is located above the inclined guide surface a.

[0010] The wind shield is connected to the middle part of the inner side of the side plate and is parallel to the air inlet grille.

[0011] A water collecting trough is provided below the horizontally extended flow guiding surface and the vertically extended flow guiding surface.

[0012] The beneficial effects of the utility model are as follows: a horizontally extended guide surface is added to the bottom of the guide plate a on the air inlet side, which increases the distance between the cooling water droplets and the air inlet grille when they fall into the water collection tank, thereby reducing the possibility of water droplets splashing onto the air inlet grille. In addition, the horizontally extended guide surface can slow down the water flow rate, thereby reducing the splashing range of water droplets, further reducing the possibility of water droplets splashing onto the air inlet grille, and preventing the air inlet grille from freezing due to splashing water; a wind shield is added to reduce air convection in the tower, reduce the assistance of air convection to water droplet splashing, and avoid water droplets being blown onto the air inlet grille by airflow. The utility model can effectively prevent water droplets from splashing onto the air inlet grille, thereby preventing the air inlet grille from freezing and blocking, ensuring smooth air inlet in the cooling tower, ensuring the cooling performance and cooling efficiency of the cooling tower in winter operation, reducing the power consumption of the cooling tower in winter operation, and reducing the waste of electric energy and water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 is a side sectional view of guide plate a;

[0015] Figure 3 It is a side sectional view of guide plate b.

[0016] The reference numerals in the figure are as follows: 1. guide plate a, 1.1. vertical fixed surface a, 1.2. inclined guide surface a, 1.3. horizontally extended guide surface, 2. air inlet grille, 3. support frame, 4. guide plate b, 4.1. vertical fixed surface b, 4.2. inclined guide surface b, 4.3. vertically extended guide surface, 5. side panel, 6. frame, 7. wind shield. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-3 The utility model is further described as follows:

[0018] An anti-icing structure for a counterflow cooling tower includes a square frame 6, on which an air inlet grille 2 and a side plate 5 are fixed, and a wind shield 7 is provided inside the frame 6. The wind shield 7 is connected to the middle of the inner side of the side plate 5 and is parallel to the air inlet grille 2. The wind shield 7 is used to reduce the air convection speed in the tower. In order to prevent the airflow in the tower from being completely blocked by the wind shield 7, a gap is provided on the surface of the wind shield 7 to allow airflow to pass through. A guide plate a1 is provided on the top of the air inlet grille 2. The guide plate a1 includes a vertical fixing surface a1.1 fixed to the top of the frame 6 by fixing bolts, and the bottom of the vertical fixing surface a1.1 is connected to a downwardly inclined guide surface a1.2, and the bottom of the inclined guide surface a1.2 is connected to a horizontally extended guide surface 1.3. The frame 6 is provided with a support frame 3 for supporting the inclined guide surface a1.2.

[0019] A guide plate b4 is provided on the top of the side panel 9, and the guide plate b4 includes a vertical fixing surface b4.1 fixed to the top of the frame 6, the bottom of the vertical fixing surface b4.1 is connected to a downwardly inclined inclined guide surface b4.2, and the bottom of the inclined guide surface b4.2 is connected to a vertically extended guide surface 4.3. Since the inclined guide surface b is on one side of the side panel 9, there is no air inlet grille 2 on this side, and there is no problem of dripping and icing, so it is sufficient to set the vertically extended guide surface 4.3.

[0020] The bottom end of the vertically extended guide surface 4.3 is located above the inclined guide surface a1.2, and the two ends of the vertically extended guide surface 4.3 are close to the air inlet grille 2. To prevent dripping and icing, the cooling water at the above two ends is guided to the guide plate a1 through the guide plate b4, and then guided through the guide plate a1 to prevent the cooling water from splashing onto the air inlet grille 2.

[0021] A water collecting trough is provided below the horizontally extended flow guiding surface 1.3 and the vertically extended flow guiding surface 4.3. The cooling water drips into the water collecting trough after being guided by the horizontally extended flow guiding surface 1.3 or the vertically extended flow guiding surface 4.3.

[0022] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An anti-icing structure for a counterflow cooling tower, characterized in that: The invention comprises a square frame (6), on which oppositely arranged air inlet grilles (2) and oppositely arranged side panels (5) are fixed, a wind shield (7) is arranged inside the frame (6), two ends of the wind shield (7) are respectively connected to the oppositely arranged side panels (5), a guide plate a (1) is arranged on the top of the air inlet grille (2), the guide plate a (1) comprises a vertical fixing surface a (1.1) fixed to the top of the frame (6), the bottom of the vertical fixing surface a (1.1) is connected to a downwardly inclined oblique guide surface a (1.2), and the bottom of the oblique guide surface a (1.2) is connected to a horizontally extended guide surface (1.3).

2. The anti-icing structure for a counterflow cooling tower according to claim 1, characterized in that: The vertical fixing surface a (1.1) is fixed to the top of the frame (6) by means of fixing bolts.

3. The anti-icing structure for a counterflow cooling tower according to claim 1, characterized in that: The frame (6) is provided with a support frame (3) for supporting the inclined guide surface a (1.2).

4. The anti-icing structure for a counterflow cooling tower according to claim 1, characterized in that: A guide plate b (4) is provided on the top of the side plate (5), and the guide plate b (4) comprises a vertical fixing surface b (4.1) fixed to the top of the frame (6), the bottom of the vertical fixing surface b (4.1) is connected to a downwardly inclined guide surface b (4.2), and the bottom of the inclined guide surface b (4.2) is connected to a vertically extended guide surface (4.3).

5. The anti-icing structure for a counterflow cooling tower according to claim 4, characterized in that: The bottom end of the vertically extended flow guiding surface (4.3) is located above the inclined flow guiding surface a (1.2).

6. The anti-icing structure for a counterflow cooling tower according to claim 1, characterized in that: The wind shield (7) is connected to the middle portion of the inner side of the side plate (5) and is parallel to the air inlet grille (2).

7. The anti-icing structure for a counterflow cooling tower according to claim 1, characterized in that: A water collecting trough is provided below the horizontally extended flow guiding surface (1.3) and the vertically extended flow guiding surface (4.3).

Images