Resistance-reducing energy-saving cooling tower with guide plates

Abstract

The utility model discloses a resistance-reducing energy-saving cooling tower with a flow guide plate, which belongs to the technical field of cooling towers and comprises a tower body, an air duct and the flow guide plate, the tower body is of a cuboid box structure, four tower corner structures are formed at corners of the top of the tower body, each tower corner structure is formed by two adjacent side plates and a top plate in a surrounding manner, the air duct is connected to the center of the top plate, and the flow guide plate is connected to the air duct. An induced draft fan is arranged in the air duct, one flow guide plate is correspondingly installed in one tower angle structure, the flow guide plates are of isosceles trapezoid structures, the lower bottoms of the flow guide plates are attached to the top plate, the two waists of each flow guide plate are each provided with a turned-over edge, and the two turned-over edges are fixedly connected with the two side plates on the same tower angle structure respectively. And a notch is formed at the joint of the upper bottom of the guide plate and the two side plates. According to the cooling tower disclosed by the utility model, airflow resistance is reduced by the guide plates, so that the energy consumption of the induced draft fan is reduced, and meanwhile, production and installation are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to a drag-reducing and energy-saving cooling tower with a guide plate. Background Art

[0002] At present, the frame structure of conventional large, medium and small industrial cooling towers is a square (or rectangular) structure cooling tower, and the four corners of the air chamber are prone to vortexes. When the cooling tower is in operation, the hot and humid air passes through the water collector and enters the air chamber. The fan at the top of the cooling tower draws air to form a negative pressure, and the hot and humid air in the center of the tower flows out of the tower smoothly. However, due to the structure of the tower, the hot and humid air on the side of the tower will form vortices around the top of the air chamber, causing turbulence in the air chamber, increasing the resistance in the tower, and increasing the energy consumption of the fan.

[0003] Therefore, it is necessary for the inventor to improve the structure of the cooling tower to achieve the purpose of reducing the resistance and saving energy of the cooling tower. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in the prior art, turbulence is easily generated at the corners at the top of the cooling tower air chamber, resulting in increased air flow resistance in the tower and increased fan energy consumption. Based on this, the utility model provides a cooling tower that can reduce the resistance in the tower, consumes less energy, and is easy to install a guide plate.

[0005] The utility model adopts the following technical scheme to solve the technical problems: a drag-reducing and energy-saving cooling tower with a guide plate, comprising a tower body, an air duct and a guide plate, the tower body being a rectangular box structure consisting of four side plates connected in sequence and a top plate connected to the tops of the four side plates, four tower corner structures are formed at the corners of the top of the tower body, the tower corner structure is formed by surrounding two adjacent side plates and the top plate, the air duct is connected to the center of the top plate, an induced draft fan is arranged in the air duct, there are multiple guide plates, one guide plate is correspondingly installed in one of the tower corner structures, the guide plate is an isosceles trapezoidal structure, the lower bottom of the guide plate is fitted with the top plate, flanges are arranged on two waists of the guide plate, the two flanges are respectively fixedly connected to the two side plates on the same tower corner structure, and a notch is formed at the joint between the upper bottom of the guide plate and the two side plates.

[0006] Furthermore, the guide plate comprises two guide sub-plates which are connected to each other and symmetrically arranged, and the guide sub-plates are of a right-angled trapezoidal structure, and the right-angled sides of the two guide sub-plates are fixedly connected.

[0007] Furthermore, a connecting piece is provided on the right-angled side of the guide plate, the connecting piece and the guide plate are perpendicular to each other, the two connecting pieces are fixedly connected by bolts, and the flange is provided on the side of the guide plate opposite to the connecting piece.

[0008] Furthermore, the included angle α between the flanging and the flow deflector is 120°, and the included angle β between the flow deflector and the horizontal plane is 45°.

[0009] Furthermore, a fillet is provided at the connection between the flanging and the flow deflector.

[0010] Furthermore, the flanging is fixedly installed on the side plate by expansion bolts.

[0011] Furthermore, the flow deflector is made of fiberglass material.

[0012] The beneficial effects of the present utility model are as follows: for the resistance-reducing and energy-saving cooling tower with a flow deflector of the present utility model, the flow deflector can guide the hot and humid air in the tower to quickly reach the bottom of the chimney after passing through the water collector, ensuring that the wind around the tower body all flows towards the center of the tower body, reducing the air flow resistance, and thus reducing the energy consumption of the induced draft fan. At the same time, the flow deflector is set as an isosceles trapezoid structure, so that a notch is formed at the connection between the upper base of the flow deflector and the two side plates. This notch can provide a space for the flow deflector to move and adjust, facilitating the installation operation. At the same time, the flow deflector is integrally in a planar structure, reducing the processing difficulty of the flow deflector and facilitating production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0014] Figure 1 is a schematic diagram of the resistance-reducing and energy-saving cooling tower with a flow deflector of the present utility model;

[0015] Figure 2 is Figure 1 a schematic diagram of the connection structure between the flow deflector and the tower corner structure in the resistance-reducing and energy-saving cooling tower with a flow deflector shown;

[0016] Figure 3 is Figure 2 a schematic diagram of the flow deflector in the resistance-reducing and energy-saving cooling tower with a flow deflector shown;

[0017] Figure 4 is Figure 3 a sectional view of the flow deflector shown along A-A;

[0018] Figure 5 is Figure 4 a partially enlarged view of B in the flow deflector shown;

[0019] Figure 6 is Figure 4 a partially enlarged view of C in the flow deflector shown.

[0020] In the figure: 1. Tower body, 10. Tower corner structure, 11. Side plate, 12. Top plate, 2. Air duct, 3. Deflector, 30. Notch, 31. Deflector, 311. Connecting piece, 4. Flange, 41. Fillet. Detailed implementation manner

[0021] Now, the present utility model will be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present utility model in a schematic manner, so it only shows the components related to the present utility model.

[0022] Please refer to Figures 1-6 , the present utility model provides a drag-reducing and energy-saving cooling tower with deflectors, which includes a tower body 1, an air duct 2 and deflectors 3. The tower body 1 is in a cuboid box structure. Four tower corner structures 10 are formed at the corners of the top of the tower body 1. The tower body 1 includes four side plates 11 connected in sequence and a top plate 12 connected to the tops of the four side plates 11. The tower corner structure 10 is formed by enclosing two adjacent side plates 11 and the top plate 12. Among the two side plates 11 and the top plate 12 that constitute the tower corner structure 10, any two are perpendicular to each other. The air duct 2 is connected to the center of the top plate 12. An induced draft fan (not shown in the figure) is provided inside the air duct 2. There are multiple deflectors 3. One deflector 3 is correspondingly installed in one tower corner structure 10. The deflector 3 is in an isosceles trapezoidal plate structure. The lower bottom of the deflector 3 is attached to the top plate 12. Flanges 4 are provided on both waists of the deflector 3. The two flanges 4 are respectively fixedly connected to the two side plates 11 on the same tower corner structure 10. A notch 30 is formed at the butt joint between the upper bottom of the deflector 3 and the two side plates 11.

[0023] For the drag-reducing and energy-saving cooling tower with deflectors of the present utility model, the deflectors 3 are inclined and arranged in the four tower corner structures 10 below the top plate 12. When the induced draft fan is started, negative pressure is generated inside the tower body 1, and the humid and hot air passing through the water collector upward is quickly sent to the bottom of the air duct 2. The deflectors 3 at the tower corner structures 10 can destroy the generation of turbulent flow, so that the upward humid and hot air flows upward along the deflectors 3 obliquely, ensuring that the wind around the tower body 1 all flows towards the center of the tower body 1, reducing the air flow resistance, and thus reducing the energy consumption of the induced draft fan.

[0024] When installing the flow deflector 3, first attach the lower base of the flow deflector 3 to the top plate 12, and then slide the flow deflector 3 so that the flanges 4 on both sides of the flow deflector 3 are attached to the two side plates 11 on both sides. Then, fixedly connect the flanges 4 to the side plates 11. Additionally, since the shape of the flow deflector 3 is an isosceles trapezoid, when connecting the flanges 4 on both sides to the side plates 11, there will inevitably be a notch 30 between the upper base of the flow deflector 3 and the butt joint between the two side plates 11. The existence of this notch 30 can provide an operating space for the flow deflector 3 to move and adjust during the installation process, avoiding the situation where the installation position of the flow deflector 3 cannot be adjusted when the flow deflector 3 is designed as a triangle. Designing the flow deflector 3 as an isosceles trapezoid structure can facilitate the adjustment of the position of the flow deflector 3, which is beneficial for the installation operation. At the same time, the flow deflector 3 is a planar structure as a whole, reducing the processing difficulty of the flow deflector 3 and facilitating production.

[0025] Please refer to Figure 3 , as a preferred embodiment, the flow deflector 3 includes two interconnected and symmetrically arranged flow deflector sub - plates 31. The flow deflector sub - plates 31 are right - angled trapezoid structures, and the right - angled sides of the two flow deflector sub - plates 31 are fixedly connected. During specific production, the length of the lower base of the flow deflector 3 can reach 6000 mm, and the processing difficulty is large. Setting the flow deflector 3 as two butt - jointed flow deflector sub - plates 31 can greatly reduce the processing difficulty and is also convenient for transportation and packaging.

[0026] Furthermore, a connecting piece 311 is provided on the right - angled side of the flow deflector sub - plate 31. The connecting piece 311 is perpendicular to the flow deflector sub - plate 31, and the two connecting pieces 311 are fixedly connected by bolts (not shown in the figure). During specific connection, the bolts can be passed through the two connecting pieces 311 in sequence, and then a locking nut is installed at the end of the bolts. Through the cooperation between the bolts and the locking nuts, the fixed connection between the two connecting pieces 311 is realized. Additionally, the flange 4 is arranged on the side of the flow deflector sub - plate 31 opposite to the connecting piece 311, and the flow deflector sub - plate 31 and the corresponding flange 4 are integrally formed structures, which is convenient for production and also helps the enterprise control production costs.

[0027] Please refer to Figure 1 and Figure 5 , as a preferred embodiment, the included angle α between the flange 4 and the flow deflector 3 is 120°, and the included angle β between the flow deflector 3 and the horizontal plane is 45°. A fillet 41 is provided at the connection between the flange 4 and the flow deflector 3 to reduce stress concentration. The flange 4 can be formed by bending the edge of the flow deflector 3, or integrally injection - molded, or formed by fixing a long strip - shaped plate - like structure to the flow deflector 3 through fixing methods such as welding and gluing, which is not limited here. In this embodiment, the thicknesses of both the flow deflector 3 and the flange 4 are 5 mm, and the radius of the fillet 41 is 5 mm.

[0028] In this embodiment, the flange 4 is fixedly installed on the side plate 11 through expansion bolts.

[0029] As a preferred embodiment, the flow deflector 3 is made of fiberglass material. Fiberglass, as a composite material made of glass fibers and resin, has good corrosion resistance and wear resistance, and has good resistance to moisture. It is light in weight and good in strength. While achieving lightweight production, it can also ensure the structural strength of the flow deflector 3. More importantly, fiberglass has a certain elasticity and can undergo a certain deformation under the action of external forces, so as to ensure that the flanging 4 fits with the side plate 11, thereby improving the connection stability between the flanging 4 and the side plate 11. Moreover, the deformable flow deflector 3 made of fiberglass can eliminate the influence caused by the processing error of the flow deflector 3 during the installation of the flow deflector 3, facilitating the installation operation of the user.

[0030] Taking the above-mentioned ideal embodiment based on the present utility model as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the scope of the present utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A drag-reducing and energy-saving cooling tower with a guide plate, characterized in that: The tower body is a rectangular box structure consisting of four side panels connected in sequence and a top panel connected to the top of the four side panels. Four tower corner structures are formed at the corners of the top of the tower body. The tower corner structure is formed by two adjacent side panels and the top panel. The wind duct is connected to the center of the top panel. An induced draft fan is arranged in the wind duct. There are multiple guide plates, one guide plate is correspondingly installed in one tower corner structure. The guide plate is an isosceles trapezoidal structure. The lower bottom of the guide plate is fitted with the top panel. Flanges are arranged on the two waists of the guide plate. The two flanges are respectively fixedly connected to the two side panels on the same tower corner structure. A notch is formed at the joint between the upper bottom of the guide plate and the two side panels.

2. The drag-reducing and energy-saving cooling tower with a guide plate according to claim 1, characterized in that: The guide plate comprises two guide sub-plates which are connected to each other and symmetrically arranged. The guide sub-plates are of a right-angled trapezoidal structure and the right-angled sides of the two guide sub-plates are fixedly connected.

3. The drag-reducing and energy-saving cooling tower with a guide plate according to claim 2, characterized in that: A connecting piece is provided on the right-angled side of the guide plate. The connecting piece and the guide plate are perpendicular to each other. The two connecting pieces are fixedly connected by bolts. The flange is provided on the side of the guide plate opposite to the connecting piece.

4. The drag-reducing and energy-saving cooling tower with a guide plate according to claim 1, characterized in that: The included angle α between the flange and the guide plate is 120°, and the included angle β between the guide plate and the horizontal plane is 45°.

5. The drag-reducing and energy-saving cooling tower with a guide plate according to claim 4, characterized in that: A fillet is provided at the connection between the flange and the guide plate.

6. The drag-reducing and energy-saving cooling tower with a guide plate according to claim 1, characterized in that: The flange is fixedly mounted on the side plate by expansion bolts.

7. The drag-reducing and energy-saving cooling tower with a guide plate according to claim 1, characterized in that: The guide plate is made of glass fiber reinforced plastic material.

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