Counter-flow mechanical ventilation tower hot water curtain anti-icing system

Abstract

The utility model discloses a reverse flow type mechanical ventilation tower hot water curtain anti-icing system which comprises a reverse flow type mechanical ventilation cooling tower body, outlets are formed in the left side and the right side of the upper end of the reverse flow type mechanical ventilation cooling tower body, and fan blades are installed in the outlets. The fan blades work through a transmission shaft installed at the inner side position, the transmission shaft enables the fan blades to rotate through a driving motor connected to the other end position, and a guardrail is installed at the upper end position of the reverse flow type mechanical ventilation cooling tower body. According to the reverse flow type mechanical ventilation cooling tower hot water curtain anti-icing system, a hot water curtain pipeline is connected with a return water upper tower vertical pipe, hot water in the hot water curtain pipeline is vertically and evenly sprayed to the inner plane of a water guide plate, and the water guide plate evenly sprays the hot water to an air inlet to form a hot water curtain so that cold air entering the tower can be heated; therefore, the purpose of deicing of the cooling tower in winter is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to a counter-flow type mechanical ventilation tower hot water curtain anti-icing system, and specifically relates to a counter-flow type mechanical ventilation tower hot water curtain anti-icing system. Background Art

[0002] The counter-flow mechanical ventilation tower hot water curtain anti-icing system is a system used to prevent the ventilation tower from freezing. The counter-flow mechanical ventilation tower hot water curtain anti-icing system is installed on the ventilation tower. This system sets a water spraying device around the ventilation tower to spray hot water on the surface of the ventilation tower to form a layer of hot water curtain to prevent cold air from directly contacting the surface of the ventilation tower and reduce the possibility of freezing. This can ensure the normal operation of the ventilation tower in winter and improve the ventilation effect.

[0003] Winter icing of cooling towers is a common phenomenon in cold regions. It not only causes serious damage to the cooling tower body and core, but also brings great difficulties to the winter operation and management of cooling towers. Some people abroad have made statistics that the cost of repairing cooling tower damage caused by icing is as high as millions of dollars each year. There has been no report in China, and it is estimated that the cost is also considerable. For a long time, various manufacturers have taken various anti-icing measures, but the results are not ideal, making anti-icing one of the difficulties in the technical processing and operation management of cooling towers. Utility Model Content

[0004] The purpose of the utility model is to provide a countercurrent mechanical ventilation tower hot water curtain anti-icing system to solve the problem that winter icing of cooling towers mentioned in the above background technology is a common phenomenon in cold regions, which not only causes serious damage to the cooling tower body and the tower core, but also brings great difficulties to the winter operation and management of the cooling tower. Some people abroad have made statistics that the cost of repairing cooling tower damage caused by icing each year is as high as millions of dollars. There has been no report in China, and it is estimated that the cost is also considerable. For a long time, various manufacturers have taken various anti-icing measures, but the results are not ideal, making anti-icing one of the difficulties in the technical processing and operation management of cooling towers.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a counter-flow mechanical ventilation tower hot water curtain anti-icing system, comprising a counter-flow mechanical ventilation cooling tower body, the upper end of the counter-flow mechanical ventilation cooling tower body is provided with outlets at positions on the left and right sides, and fan blades are installed at the inner position of the outlet, and the fan blades are operated by a transmission shaft installed at the inner position, and the transmission shaft causes the fan blades to rotate by a driving motor connected to the other end position, and a cooling tower return water upper tower riser is provided at the inner position of the counter-flow mechanical ventilation cooling tower body, and a plurality of spray nozzles are distributed at the outer wall position of the cooling tower return water upper tower riser. Head, concrete air guide plates are arranged at the left and right end positions of the counter-flow mechanical ventilation cooling tower body, a water guide plate is installed at the lower end position of the concrete air guide plate, the front end position of the water guide plate is connected to the hot water curtain pipe, a hot water curtain support device is installed at the upper end position of the hot water curtain pipe, a U-shaped bolt for fixing is installed at the lower end position of the hot water curtain pipe, the hot water curtain support device is installed with the concrete air guide plate through the stud bolts at the upper end position, the internal position of the counter-flow mechanical ventilation cooling tower body is arranged at the air inlet of the cooling tower, and a guardrail is installed at the upper end position of the counter-flow mechanical ventilation cooling tower body.

[0006] Preferably, a concrete air guide plate is provided at the entrance of the air inlet of the cooling tower.

[0007] Preferably, the water guide plate is fixed at the position of the concrete air guide plate in the air inlet of the cooling tower through a hot water curtain support device.

[0008] Preferably, the hot water curtain pipe is connected to a cooling tower return water upper tower riser, and the water volume in the cooling tower return water upper tower riser is 20% of the cooling tower operating water volume.

[0009] Preferably, the hot water curtain pipeline includes a butterfly valve, a ball valve, an elbow, a reducer, a flange and a straight seam pipe, etc. The straight seam pipe in the hot water curtain pipeline needs to be perforated according to the water volume to ensure uniform water distribution.

[0010] Preferably, the water guide plate is made by bending a stainless steel flat plate, and the water guide plate should be punched with holes according to the water volume to ensure uniform water distribution.

[0011] Preferably, the hot water curtain support device comprises angle steel, steel plate, U-bolts and stud bolts, and the hot water curtain support device fixes the hot water curtain pipe and the water guide plate.

[0012] Preferably, the hot water in the hot water curtain pipe is sprayed vertically and evenly onto the inner plane of the water guide plate.

[0013] Preferably, the water guide plate sprays the hot water evenly to the air inlet to form a hot water curtain.

[0014] Compared with the prior art, the utility model provides a counter-flow mechanical ventilation tower hot water curtain anti-icing system, which has the following beneficial effects:

[0015] The device provides a counter-current mechanical ventilation cooling tower hot water curtain anti-icing system, wherein the hot water curtain pipeline is connected to the return water upper tower riser, and the hot water in the hot water curtain pipeline is vertically and evenly sprayed onto the inner plane of the water guide plate, and the water guide plate sprays the hot water evenly onto the air inlet to form a hot water curtain to heat the cold air entering the tower, thereby achieving the purpose of defrosting the cooling tower in winter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of the plan structure of a counter-current mechanical ventilation tower hot water curtain anti-icing system.

[0017] Figure 2 The utility model is a three-dimensional structural schematic diagram of a counter-current mechanical ventilation tower hot water curtain anti-icing system.

[0018] Figure 3 The utility model is a partial cross-sectional structural schematic diagram of a counter-current mechanical ventilation tower hot water curtain anti-icing system.

[0019] In the figure: 1. hot water curtain pipeline; 2. water guide plate; 3. hot water curtain support device; 4. cooling tower return water upper tower riser; 5. concrete air guide plate; 6. cooling tower air inlet; 7. countercurrent mechanical ventilation cooling tower body; 8. U-bolt; 9. stud bolt; 10. fan blade; 11. drive motor; 12. transmission shaft; 13. guardrail; 14. outlet; 15. nozzle. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] The utility model provides Figure 1-3A counter-flow mechanical ventilation tower hot water curtain anti-icing system is shown, comprising a counter-flow mechanical ventilation cooling tower body 7, the upper end of the counter-flow mechanical ventilation cooling tower body 7 is provided with outlets 14 at the left and right sides, and a fan blade 10 is installed at the inner position of the outlet 14, and the fan blade 10 is operated by a transmission shaft 12 installed at the inner position, and the transmission shaft 12 is connected to the driving motor 11 at the other end position to make the fan blade 10 rotate, and a cooling tower return water upper tower riser 4 is provided at the inner position of the counter-flow mechanical ventilation cooling tower body 7, and a plurality of nozzles 15 are distributed at the outer wall position of the cooling tower return water upper tower riser 4, and the counter-flow mechanical ventilation cooling tower body 7 is provided with a plurality of nozzles 15. Concrete air guide plates 5 are provided at the left and right ends of the mechanical ventilation cooling tower body 7, a water guide plate 2 is installed at the lower end of the concrete air guide plate 5, the front end of the water guide plate 2 is connected to the hot water curtain pipe 1, a hot water curtain support device 3 is installed at the upper end of the hot water curtain pipe 1, a U-shaped bolt 8 for fixing is installed at the lower end of the hot water curtain pipe 1, the hot water curtain support device 3 is installed with the concrete air guide plate 5 through the stud bolts 9 at the upper end, the internal position of the counterflow mechanical ventilation cooling tower body 7 is set at the cooling tower air inlet 6, and a guardrail 13 is installed at the upper end of the counterflow mechanical ventilation cooling tower body 7.

[0022] The hot water curtain pipe 1 sprays part of the hot water in the return water tower riser vertically and evenly onto the inner plane of the water guide plate 2. The water guide plate 2 sprays the hot water evenly onto the air inlet to form a hot water curtain to heat the cold air entering the tower, thereby achieving the purpose of defrosting the cooling tower in winter. The hot water curtain support device 3 fixes the hot water curtain and the water guide plate 2 to the concrete air guide plate 5 at the air inlet 6 of the cooling tower.

[0023] like Figure 1 and Figure 2 As shown, a concrete air guide plate 5 is provided at the entrance position of the cooling tower air inlet 6, and the water guide plate 2 is fixed at the position of the concrete air guide plate 5 in the cooling tower air inlet 6 through a hot water curtain support device 3. The hot water curtain pipe 1 is connected to the cooling tower return water upper tower riser 4. The water volume in the cooling tower return water upper tower riser 4 is 20% of the cooling tower operating water volume. The hot water curtain pipe 1 includes a butterfly valve, a ball valve, an elbow, a reducer, a flange and a straight seam pipe, etc. The straight seam pipe in the hot water curtain pipe 1 needs to be punched on the pipe according to the water volume to ensure uniform water distribution. The water guide plate 2 is made of a stainless steel flat plate by bending. The water guide plate 2 should be punched according to the water volume to ensure uniform water distribution. The hot water curtain support device 3 includes angle steel, a steel plate, a U-bolt 8 and a stud bolt 9. The hot water curtain support device 3 fixes the hot water curtain pipe 1 and the water guide plate 2. The hot water in the hot water curtain pipe 1 is vertically and evenly sprayed onto the inner plane of the water guide plate 2. The water guide plate 2 evenly sprays the hot water to the air inlet to form a hot water curtain.

[0024] Part of the hot water in the return water tower riser is sprayed vertically and evenly onto the inner plane of the water guide plate 2 through the hot water curtain pipe 1. The water guide plate 2 sprays the hot water evenly onto the air inlet to form a hot water curtain to heat the cold air entering the tower, thereby achieving the purpose of defrosting the cooling tower in winter.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A counter-flow mechanical ventilation tower hot water curtain anti-icing system, characterized in that: The invention comprises a counter-flow mechanical ventilation cooling tower body (7), wherein the upper end of the counter-flow mechanical ventilation cooling tower body (7) is provided with outlets (14) at positions on the left and right sides, and fan blades (10) are installed at positions inside the outlets (14), and the fan blades (10) are operated by a transmission shaft (12) installed at an inner position, and the transmission shaft (12) causes the fan blades (10) to rotate through a drive motor (11) connected to the other end position, and a cooling tower return water upper tower riser (4) is provided at an inner position of the counter-flow mechanical ventilation cooling tower body (7), and a plurality of nozzles (15) are distributed at positions on the outer wall of the cooling tower return water upper tower riser (4), and the left side of the counter-flow mechanical ventilation cooling tower body (7) is provided with a plurality of nozzles (15), and the right side of the counter-flow mechanical ventilation cooling tower body (7) is provided with a plurality of nozzles (15 ... Concrete air guide plates (5) are provided at both right end positions, a water guide plate (2) is installed at the lower end position of the concrete air guide plate (5), the front end position of the water guide plate (2) is connected to the hot water curtain pipe (1), a hot water curtain support device (3) is installed at the upper end position of the hot water curtain pipe (1), a U-shaped bolt (8) for fixing is installed at the lower end position of the hot water curtain pipe (1), the hot water curtain support device (3) is installed with the concrete air guide plate (5) via the stud bolts (9) at the upper end position, the internal position of the counterflow mechanical ventilation cooling tower body (7) is arranged at the cooling tower air inlet (6), and a guardrail (13) is installed at the upper end position of the counterflow mechanical ventilation cooling tower body (7).

2. A counter-flow mechanical ventilation tower hot water curtain anti-icing system according to claim 1, characterized in that: A concrete air guide plate (5) is provided at the entrance of the cooling tower air inlet (6).

3. A counter-flow mechanical ventilation tower hot water curtain anti-icing system according to claim 1, characterized in that: The water guide plate (2) is fixed at the position of the concrete air guide plate (5) in the air inlet (6) of the cooling tower through a hot water curtain support device (3).

4. A counter-flow mechanical ventilation tower hot water curtain anti-icing system according to claim 1, characterized in that: The hot water curtain pipe (1) is connected to a cooling tower return water upper tower riser (4), and the water volume in the cooling tower return water upper tower riser (4) is 20% of the cooling tower operating water volume.

5. A counter-flow mechanical ventilation tower hot water curtain anti-icing system according to claim 4, characterized in that: The hot water curtain pipeline (1) comprises a butterfly valve, a ball valve, an elbow, a reducer, a flange and a straight seam pipe. The straight seam pipe in the hot water curtain pipeline (1) needs to be perforated according to the water volume to ensure uniform water distribution.

6. A counter-flow mechanical ventilation tower hot water curtain anti-icing system according to claim 1, characterized in that: The water guide plate (2) is made by bending a stainless steel flat plate, and the water guide plate (2) should be perforated according to the amount of water to ensure uniform water distribution.

7. A counter-flow mechanical ventilation tower hot water curtain anti-icing system according to claim 1, characterized in that: The hot water curtain support device (3) comprises angle steel, a steel plate, a U-shaped bolt (8) and a stud bolt (9), and the hot water curtain support device (3) fixes the hot water curtain pipeline (1) and the water guide plate (2).

8. A counter-flow mechanical ventilation tower hot water curtain anti-icing system according to claim 7, characterized in that: The hot water in the hot water curtain pipe (1) is sprayed vertically and evenly onto the inner plane of the water guide plate (2).

9. A counter-flow mechanical ventilation tower hot water curtain anti-icing system according to claim 8, characterized in that: The water guide plate (2) sprays the hot water evenly to the air inlet to form a hot water curtain.

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