Vertical air cooler with heat insulation and humidification functions

Abstract

The utility model relates to the technical field of air cooling equipment, in particular to a heat insulation and humidification vertical air cooler, which comprises a framework, tube bundles, a wet curtain, an axial flow fan, a crawling ladder, a waterway system, a junction box, a water collecting tank and a circulating water pump, the tube bundles are positioned on two sides of the framework, the wet curtain is positioned on the outer side of the tube bundles, and the axial flow fan is arranged on the crawling ladder. The pipe bundle is supported by the framework, the water path system and the junction box are integrated in the framework, the water inlet end of the water path system is connected with the water collecting tank, and the water outlet end is equally divided into two paths above the framework to be supplied to the two wet curtains respectively. The wet curtain and the water path system are additionally arranged on the basis of an original vertical air cooler, the air inlet temperature is effectively reduced, the temperature difference between the temperature of a medium outlet of the air cooler and the designed temperature of air in summer is increased, and the energy efficiency of the air cooler is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of air cooling equipment, specifically relating to an insulated and humidified vertical air cooler. Background Technology

[0002] The traditional selection principle for dry air coolers is that the temperature difference between the cooler's medium outlet temperature and the summer design air temperature should be greater than or equal to 15°C. Under these conditions, the cost-effectiveness of using an air cooler is highest. If the temperature difference is less than 15°C or even close to the temperature difference, the required heat exchange area will increase, the air cooler efficiency will decrease, and the investment will increase accordingly. In northern China (such as Xinjiang), where summer design temperatures are high and temperature differences are small, the heat exchange area of ​​the air cooler needs to be increased dramatically.

[0003] Currently, the central heat exchange element of humidifying air coolers used in the market is mainly finned tubes, and the humidification method is nozzle atomization spraying. The atomized particles of the spray are too large, forming water vapor. Because the gap between adjacent fins of the finned tube is small, water bridges are easily formed between the fins instead of a water film when spraying on its surface. Furthermore, as the equipment operates, dirt easily accumulates in the area between the fins. Both water bridges and dirt reduce the heat transfer efficiency of the equipment. Because there are many fins and the gaps are small, the dirt is not easy to remove. Over time, the process performance of the equipment declines significantly, the effective service life of the equipment is very short, and the cost is high. In addition, the fins on the outer surface of the finned tube are densely distributed, the channels become smaller and the air resistance increases, thereby increasing the power loss of the fan motor and increasing the energy consumption of the equipment. The water mist sprayed from the nozzle can be carried away by the wind, causing pollution and wasting water resources. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an insulated and humidified vertical air cooler to solve the problem that the existing air coolers have low energy efficiency and cannot meet the process requirements. The wet curtain paper module prevents water mist from drifting around, causing scale buildup on the fins and wasting water.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vertical air cooler with heat insulation and humidification, comprising a frame, tube bundle, wet curtain, axial flow fan, ladder, water system, junction box, water collection tank, and circulating water pump, wherein:

[0006] The tube bundle is located on both sides of the frame, and the wet curtain is located outside the tube bundle;

[0007] The framework supports the pipe bundle and integrates the water system and junction box internally;

[0008] The water system's inlet is connected to the water collection tank, and its outlet is divided into two parallel paths above the frame to supply two wet curtains respectively.

[0009] The circulating water pump is installed between water circuits to drive the flow of circulating water;

[0010] There are two axial flow fans, which are evenly arranged above the frame along the length of the tube bundle, and the wiring of their motors and the motors of the circulating water pumps is connected to the junction box.

[0011] The bottom of the wet curtain is connected to a water collection tank. Unevaporated circulating water is collected in the water collection tank and then pumped back to the water circulation pump.

[0012] Preferably, the wet curtain has a honeycomb module structure and is vertically installed on the outside of the tube bundle to increase the contact area between air and water and prevent water mist from spreading to other areas of the tube bundle or structure.

[0013] Preferably, the water system includes an inlet main pipe, branch pipes, and a return pipe, wherein the branch pipes correspond to two wet curtains respectively, and the return pipe is connected to the water collection tank.

[0014] Preferably, the axial flow fan is a dual axial flow fan, symmetrically arranged on both sides above the frame, with its air outlet facing the gap between the wet curtain and the tube bundle, forming an air convection channel.

[0015] Preferably, the top of the frame is equipped with an inspection door, and the interior integrates a water system and a junction box, with the equipment accessible via a ladder and its protective cage.

[0016] Preferably, its operating modes include summer and non-summer conditions: in summer conditions, the axial flow fan and circulating water pump are started, and the air enters the tube bundle after being humidified and cooled by the wet curtain; in non-summer conditions, only the axial flow fan is started, and the air is directly cooled through the tube bundle.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model adds a wet curtain and water system to the original vertical air cooler, which effectively reduces the inlet air temperature, increases the temperature difference between the outlet temperature of the air cooler medium and the summer air design temperature, and greatly improves the energy efficiency of the air cooler.

[0019] 2. Compared with the traditional method of spraying humidifier directly at the air inlet of the air cooler, this utility model has a larger contact area between air and water and a more obvious cooling effect. It solves the problem of water wastage caused by wind-induced water mist dispersion, and also solves the problems of aging of air cooler electrical equipment, scaling of heat exchange fin tubes, and slippery air cooler maintenance platform caused by water mist spraying onto the equipment.

[0020] 3. This utility model has an inspection door at the frame, and the water system and electrical wires are placed inside the frame, which facilitates the maintenance of the equipment and saves space. Attached Figure Description

[0021] Figure 1 This is a front view schematic diagram of the overall structure of the thermal insulation and humidification vertical air cooler of this utility model;

[0022] Figure 2 This is a side view of the overall structure of the insulated and humidified vertical air cooler of this utility model.

[0023] In the diagram: 1. Frame; 2. Pipe bundle; 3. Evaporative cooling pad; 4. Axial flow fan; 5. Ladder; 6. Water system; 7. Junction box; 8. Water collection tank; 9. Circulating water pump. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The following reference Figures 1-2 This application describes an embodiment of an adiabatic humidifying vertical air cooler.

[0026] A vertical air cooler with heat insulation and humidification includes a frame 1, a tube bundle 2, an evaporative cooling pad 3, an axial flow fan 4, a ladder 5, a water system 6, a junction box 7, a water collection tank 8, and a circulating water pump 9, wherein:

[0027] Tube bundle 2 is located on both sides of frame 1, and wet curtain 3 is located outside tube bundle 2;

[0028] The frame 1 supports the pipe bundle 2 and integrates the water system 6 and junction box 7 internally;

[0029] The water system 6 has its inlet end connected to the water collection tank 8, and its outlet end is divided into two parallel lines above the frame 1 to supply two wet curtains 3 respectively.

[0030] The circulating water pump 9 is installed between the water circuit system 6 to drive the flow of circulating water;

[0031] There are two axial flow fans 4, which are evenly arranged above the frame 1 along the length of the tube bundle 2. The motors of the fans and the motors of the circulating water pump 9 are connected to the junction box 7.

[0032] The bottom of the wet curtain 3 is connected to the water collection tank 8. The unevaporated circulating water is recovered through the water collection tank 8 and then transported back by the circulating water pump 9.

[0033] Furthermore, the wet curtain 3 has a honeycomb module structure and is vertically installed on the outside of the tube bundle 2 to increase the contact area between air and water and prevent water mist from spreading to other areas of the tube bundle 2 or the frame 1.

[0034] Furthermore, the water system 6 includes an inlet main pipe, branch pipes, and return pipe, wherein the branch pipes correspond to two wet curtains 3 respectively, and the return pipe is connected to the water collection tank 8.

[0035] Furthermore, the axial flow fan 4 is a dual axial flow fan, symmetrically arranged on both sides above the frame 1, with its air outlet facing the gap between the wet curtain 3 and the tube bundle 2, forming an air convection channel.

[0036] In a further embodiment, the top of the frame 1 is provided with an inspection door, and the internal water system 6 and junction box 7 are integrated, and the equipment can be inspected via a ladder 5 and its protective cage.

[0037] In a further embodiment, its operating modes include summer and non-summer conditions: In summer conditions, the axial flow fan 4 and the circulating water pump 9 are started, and the air enters the tube bundle 2 after being humidified and cooled by the wet curtain 3; In non-summer conditions, only the axial flow fan 4 is started, and the air is directly cooled by passing through the tube bundle 2.

[0038] In a further embodiment, the selection of the temperature boundary point between the two operating conditions in this embodiment is determined during the process selection and design of the air cooler. The principle is to ensure the safe operation of the air cooler in summer, while also taking into account economy, energy saving and environmental protection, so that the air cooler can achieve maximum energy efficiency.

[0039] The specific working process of an adiabatic humidification vertical air cooler of this application is described in conjunction with the above embodiments: This embodiment is divided into two operating conditions according to different ambient temperatures: summer operating condition and non-summer operating condition. When the ambient temperature does not reach the design temperature, the equipment operates in non-summer operating condition, and the air cooler operates normally. At this time, the axial flow fan 4 is started, and the axial flow fan 4 drives the air to flow, thereby cooling the inside of the tube bundle 2. When the ambient temperature reaches the design temperature, the equipment operates in summer operating condition. At this time, based on the operation of the axial flow fan 4, the circulating water pump 9 is started. At this time, the circulating water is transported from the water collection tank 8 to the top of the wet curtain 3 through the water system 6. The axial flow fan 4 drives the air to flow, and the air comes into contact with the circulating water through the wet curtain 3, causing the water to evaporate and increasing the relative humidity of the air. This process is considered as isenthalpic humidification, thereby reducing the temperature of the air entering the air cooler, thereby achieving the purpose of cooling the inside of the tube bundle 2. The unevaporated circulating water flows down through the wet curtain 3 and is collected in the water collection tank 8 set below the wet curtain 3. The water in the collection tank 6 enters the next cycle through the circulating water pump 9.

[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An adiabatic, humidified, vertical air cooler characterized by: It comprises a framework (1), a tube bundle (2), a wet curtain (3), an axial flow fan (4), a ladder (5), a water system (6), a junction box (7), a water collecting tank (8) and a circulating water pump (9), wherein: The tube bundle (2) is located on both sides of the framework (1), and the wet curtain (3) is located outside the tube bundle (2); The framework (1) supports the tube bundle (2) and internally integrates the water system (6) and the junction box (7); The water system (6) is connected with the water collecting tank (8) at the water inlet end, and the water outlet end is divided into two paths above the framework (1) to supply two wet curtains (3) respectively; The circulating water pump (9) is arranged between the water systems (6) to drive the circulating water flow; The axial flow fan (4) is two, which are arranged uniformly above the framework (1) along the length direction of the tube bundle (2), and the motor is connected with the motor of the circulating water pump (9) to be connected to the junction box (7); The wet curtain (3) is connected with the water collecting tank (8) at the bottom, and the unevaporated circulating water is recycled by the water collecting tank (8) and then transported by the circulating water pump (9).

2. A vertical air cooler with thermal insulation and humidification as claimed in claim 1 wherein: The wet curtain (3) is a honeycomb module structure, which is vertically installed outside the tube bundle (2) to increase the contact area of air and water and prevent water mist from spreading to other areas of the tube bundle (2) or the framework (1).

3. A vertical air cooler with thermal insulation and humidification as claimed in claim 1 wherein: The water system (6) comprises a water inlet main pipe, a shunt branch pipe and a return pipe, wherein the shunt branch pipe corresponds to two wet curtains (3) respectively, and the return pipe is communicated with the water collecting tank (8).

4. A vertical air cooler with thermal insulation and humidification as claimed in claim 1 wherein: The axial flow fan (4) is a double axial flow fan, which is symmetrically arranged on both sides of the framework (1) above, and the air outlet is directed to the gap between the wet curtain (3) and the tube bundle (2) to form an air convection channel.

5. A vertical air cooler with thermal insulation and humidification as claimed in claim 1 wherein: The framework (1) is provided with an access door at the top, and the water system (6) and the junction box (7) are integrated inside, and the equipment is inspected through the ladder (5) and its cage.

6. A vertical air cooler with thermal insulation and humidification as claimed in claim 1 wherein: Its operation mode includes summer working condition and non-summer working condition: in summer working condition, the axial flow fan (4) and the circulating water pump (9) are started, the air is humidified and cooled by the wet curtain (3) and then enters the tube bundle (2), and in non-summer working condition, only the axial flow fan (4) is started, and the air is directly cooled by the tube bundle (2).

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