Large unpowered adiabatic air cooling tower

Abstract

The utility model discloses a large unpowered heat insulation air cooling tower which comprises an annularly-arranged finned tube bundle, an annularly-arranged heat insulation evaporation wet curtain is arranged on the periphery of the finned tube bundle, an annular clamping cavity is formed between the heat insulation evaporation wet curtain and the finned tube bundle, and an annularly-arranged adjustable shutter is installed at the top of the annular clamping cavity. A conical barrel and a straight barrel are sequentially arranged at the top of an inner cavity of the annularly-arranged finned tube bundle. The adjustable louver comprises an outer frame, a plurality of louver blades are installed in the outer frame in a hinged mode, and the multiple louver blades are connected with an angle controller through a connecting rod structure. According to the large unpowered heat-insulation air cooling tower, the technology of combining the heat-insulation evaporation wet curtain, air cooling and unpowered natural ventilation is adopted, the annual cooling requirement is met, a draught fan is not needed in the cooling process, power consumption is avoided, and a large amount of water consumption can be saved.

Description

Technical Field

[0001] The utility model relates to a large-scale unpowered heat-insulating air-cooling tower, belonging to the technical field of cooling towers. Background Art

[0002] In the existing technology, adiabatic evaporative wet curtains are often used in the field of industrial cooling. Their conventional structure is a layered structure composed of honeycomb paper material or polymer fiber material. Through top spraying, water flows along the surface of the wet curtain to form a water film, and water evaporation absorbs heat to reduce the air temperature.

[0003] At present, large-scale dry-wet combined cooling towers on the market all require fans to enhance heat transfer. Fans have the problems of high energy consumption and high annual power consumption. Taking 10,000m³ / h circulating water and the circulating water cooling requirement of 42-32℃ as an example, to achieve 5℃ stop spraying, the fan consumes about 3,000KW of electricity per hour. Based on 8,000 hours a year and the electricity fee calculated at 0.5 yuan, the annual electricity fee generated by the fan operation is 3,000×8,000×0.5 yuan=12 million yuan.

[0004] Existing large hyperbolic cooling towers, while eliminating fan energy consumption, consume a significant amount of water. This is particularly true in the Northwest, where water scarcity precludes the need to stop spraying for cooling in winter. Cooling tower water consumption accounts for 2% of the circulating water volume. For example, using 10,000 m³ / h of circulating water, the annual water consumption is 10,000 x 0.02 x 8,000 = 1,600,000 m³ / year. Calculated at a water rate of 5 yuan per ton, this translates to 8 million yuan in annual water costs. Hyperbolic intercooler towers exclusively utilize air-cooled heat exchange, as the cooling principle relies on air to remove heat. When the ambient temperature is 35°C or higher in the summer, the circulating water temperature typically needs to be between 42°C and 32°C, which is insufficient for summer cooling needs.

[0005] In summary, the existing technology obviously has inconveniences and defects in actual use, so it is necessary to propose a large-scale unpowered adiabatic air cooling tower to solve the bottleneck of the existing technology. Utility Model Content

[0006] In response to the deficiencies in the background technology, the utility model provides a large-scale unpowered adiabatic air-cooling tower, which adopts adiabatic evaporative wet curtain, air cooling and unpowered natural ventilation combined technology to meet the cooling needs throughout the year. The cooling process does not require a fan, has no power consumption and can save a lot of water consumption.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A large non-powered adiabatic air-cooling tower comprises a ring-shaped finned tube bundle, an annularly arranged adiabatic evaporative wet curtain is provided on the periphery of the finned tube bundle, an annular clamping cavity is provided between the adiabatic evaporative wet curtain and the finned tube bundle, an annularly arranged adjustable shutter is installed on the top of the annular clamping cavity; a conical cylinder and a straight cylinder are provided in sequence on the top of the inner cavity of the annularly arranged finned tube bundle.

[0009] Furthermore, the adjustable shutter comprises an outer frame, a plurality of window blades are hingedly mounted inside the outer frame, and the plurality of window blades are connected to the angle controller via a connecting rod structure.

[0010] Furthermore, the adiabatic evaporative wet curtain is coaxially arranged with the finned tube bundle.

[0011] Furthermore, the adiabatic evaporative wet curtain has the same height as the fin tube bundle, and the top of the adiabatic evaporative wet curtain has a spray structure.

[0012] Furthermore, the bottom of the conical cylinder is provided with a large end, which is connected to the top of the finned tube bundle, and the top of the conical cylinder is provided with a small end, which is connected to the bottom of the straight cylinder.

[0013] Furthermore, the inner diameter of the small-mouth end of the tapered cylinder is equal to the inner diameter of the straight cylinder.

[0014] Furthermore, the conical cylinder and the straight cylinder are made of steel structure or concrete structure.

[0015] Compared with the prior art, the present invention has the following advantages after adopting the above technical solution:

[0016] The large-scale non-powered adiabatic air-cooling tower provided by the utility model does not require a fan during the cooling process. It adopts a combination of adiabatic evaporative wet curtains, air cooling and non-powered natural ventilation technology (using fluid kinetic energy in conjunction with the diffuser pressurization principle to directly convert kinetic energy into pressure difference, introducing air outside the tower into the tower to form flowing air, which is then discharged outside the tower after heat exchange) to meet the cooling needs throughout the year.

[0017] In the high temperature season of summer, the adiabatic evaporative wet curtain is operated to meet the cooling needs in summer. No water is consumed in other time periods. No spraying water is required for at least half of the year. There is no power consumption and a large amount of water consumption can be saved to meet the cooling needs throughout the year.

[0018] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the structural front view of the utility model;

[0020] Figure 2 It is a top view of the structure of the utility model;

[0021] Figure 3It is a structural diagram of the fin tube bundle;

[0022] Figure 4 This is a schematic diagram of the structure of the adiabatic evaporative wet curtain;

[0023] Figure 5 This is the main structural view of the adjustable shutter;

[0024] Figure 6 It is a top view of the structure of the adjustable shutter.

[0025] In the figure, 1-insulating evaporative wet curtain; 2-adjustable shutter, 21-outer frame, 22-window blades, 23-connecting rod structure, 24-angle controller; 3-fin tube bundle; 4-conical cylinder; 5-straight cylinder; 6-annular clamping cavity. DETAILED DESCRIPTION

[0026] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described with reference to the accompanying drawings.

[0027] like Figures 1-6 As shown together, the utility model provides a large-scale non-powered adiabatic air-cooling tower, including a ring-arranged fin tube bundle 3, a ring-arranged adiabatic evaporative wet curtain 1 is provided on the periphery of the fin tube bundle 3, and the adiabatic evaporative wet curtain 1 is coaxially arranged with the fin tube bundle 3.

[0028] The adiabatic evaporative wet curtain 1 is at the same height as the fin tube bundle 3 , and the top of the adiabatic evaporative wet curtain 1 is provided with a spray structure.

[0029] The finned tube bundle 3 is formed of expanded fins, which can be wound, rolled, or other fin types. The cooling medium enters the bottom of the finned tube bundle 3, flows upward to the top, and then returns to the bottom of the finned tube bundle 3 (two or more strokes). Each finned tube bundle 3 is provided with multiple inlets and outlets.

[0030] An annular clamping cavity 6 is provided between the adiabatic evaporation wet curtain 1 and the finned tube bundle 3 , and an annularly arranged adjustable shutter 2 is installed on the top of the annular clamping cavity 6 .

[0031] The top of the inner cavity of the annularly arranged finned tube bundle 3 is provided with a conical cylinder 4 and a straight cylinder 5 in sequence. The bottom of the conical cylinder 4 is provided with a large end, which is connected to the top of the finned tube bundle 3. The top of the conical cylinder 4 is provided with a small end, which is connected to the bottom of the straight cylinder 5.

[0032] The inner diameter of the small-mouth end of the tapered cylinder 4 is equal to the inner diameter of the straight cylinder 5 .

[0033] The conical cylinder 4 and the straight cylinder 5 are made of steel structure or concrete structure.

[0034] The adjustable shutter 2 includes an outer frame 21, and a plurality of window blades 22 are hingedly mounted inside the outer frame 21. The plurality of window blades 22 are connected to an angle controller 24 via a connecting rod structure 23. The angle controller 24 is used to adjust the angle of the window blades 22 to achieve opening or closing.

[0035] The specific working principle of this utility model:

[0036] During the hot summer months, the adjustable louvers 2 between the adiabatic evaporative wet curtain 1 and the finned tube bundle 3 are closed, allowing the cooling medium to circulate within the finned tube bundle 3. Adiabatic evaporative wet curtains 1 are installed around the finned tube bundle 3, with an annular clamping cavity 6 provided between them. As the hot air passes through the adiabatic evaporative wet curtain 1, its humidity increases and its temperature decreases, achieving adiabatic pre-cooling. The air inlet through the finned tube bundle 3 is lowered, increasing the effective temperature differential and boosting the heat exchange efficiency of the air-cooling tower. Due to the lower air temperature, the medium within the finned tube bundle 3 can be cooled to a lower temperature, effectively cooling the medium during the hot summer months.

[0037] When the ambient temperature can be cooled by air cooling, the adiabatic evaporative wet curtain 1 stops spraying, and the adjustable shutter 2 between the adiabatic evaporative wet curtain 1 and the fin tube bundle 3 is opened, and only air cooling is relied on. In this way, heat exchange can be achieved for a long time throughout the year without relying on spraying water, saving a lot of water resources.

[0038] The above heat exchange air flow utilizes fluid kinetic energy and the diffuser pressurization principle to directly convert kinetic energy into pressure difference, introduces air outside the tower into the tower to form flowing air, and then discharges it out of the tower after heat exchange, realizing power-free operation.

[0039] The above description is merely an example of the preferred embodiment of the present invention. Any details not described in detail are common knowledge within the art. The scope of protection of the present invention is determined by the claims. Any equivalent modifications based on the technical teachings of the present invention are also within the scope of protection of the present invention.

Claims

1. Large unpowered adiabatic air cooling tower, characterized by: The invention comprises an annularly arranged finned tube bundle (3), an annularly arranged adiabatic evaporative wet curtain (1) is provided on the periphery of the annularly arranged finned tube bundle (3), an annular clamping cavity (6) is provided between the annularly arranged adiabatic evaporative wet curtain (1) and the finned tube bundle (3), and an annularly arranged adjustable shutter (2) is installed on the top of the annular clamping cavity (6); a conical cylinder (4) and a straight cylinder (5) are sequentially provided on the top of the inner cavity of the annularly arranged finned tube bundle (3).

2. The large-scale unpowered adiabatic air cooling tower according to claim 1, characterized in that: The adjustable shutter (2) comprises an outer frame (21), a plurality of window blades (22) are hingedly mounted inside the outer frame (21), and the plurality of window blades (22) are connected to an angle controller (24) via a connecting rod structure (23).

3. The large-scale unpowered adiabatic air cooling tower according to claim 1, characterized in that: The adiabatic evaporative wet curtain (1) and the finned tube bundle (3) are coaxially arranged.

4. The large-scale unpowered adiabatic air cooling tower according to claim 1, characterized in that: The adiabatic evaporative wet curtain (1) is at the same height as the finned tube bundle (3), and the top of the adiabatic evaporative wet curtain (1) is provided with a spray structure.

5. The large-scale unpowered adiabatic air cooling tower according to claim 1, characterized in that: The bottom of the conical cylinder (4) is provided with a large end, which is connected to the top of the finned tube bundle (3); the top of the conical cylinder (4) is provided with a small end, which is connected to the bottom of the straight cylinder (5).

6. The large-scale unpowered adiabatic air cooling tower according to claim 5, characterized in that: The inner diameter of the small end of the tapered cylinder (4) is equal to the inner diameter of the straight cylinder (5).

7. The large-scale unpowered adiabatic air cooling tower according to claim 1, characterized in that: The conical cylinder (4) and the straight cylinder (5) are made of steel structure or concrete structure.

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