A new type of multi-stage evaporative air cooler

Abstract

The present application relates to a kind of new multistage evaporation air coolers, including frame assembly, frame assembly is equipped with several groups of direct connection fan installation port, the inside of direct connection fan installation port is equipped with direct connection fan and the baffle for supporting direct connection fan, the air outlet of direct connection fan installation port is formed with airflow path in the inside of frame assembly, airflow path is equipped with several groups of evaporation membrane and heat exchange tube bundle in sequence, and evaporation membrane and heat exchange tube bundle are alternately arranged.The new multistage evaporation air cooler, dry air of outside is entered into airflow path by direct connection fan, dry air first contact is evaporation membrane, after humidification in wet evaporation membrane, become the dry air of greater humidity, and contact heat exchange tube bundle, participate in primary heat exchange, the air after primary heat exchange becomes the dry air of smaller humidity due to evaporation, at this time, secondary humidification is carried out again by evaporation membrane, and participate in heat exchange after humidification.If wind pressure is allowed, multiple humidification heat exchange can be carried out.

Description

Technical Field

[0001] This invention belongs to the field of air cooler technology, specifically relating to a novel multi-stage evaporative air cooler. Background Technology

[0002] An air cooler, also known as an air cooler, is a type of heat exchanger widely used for condensation and cooling in petrochemical and oil and gas processing. An air cooler typically consists of tube bundles, tube boxes, fans, louvers, and a frame. When designing an air cooler, the ambient design temperature is calculated using the average of the hottest month's average temperature and the extreme maximum temperature. For processes with low medium outlet temperatures, stable operation under high-temperature conditions in summer is not feasible.

[0003] Patent publication number "CN208333163U" discloses an intelligent humidifying blower-type air cooler, mainly comprising an atomization system, a temperature monitoring and early warning system, and an air cooler tube bundle, wherein the air cooler tube bundle is arranged at an angle; the main atomization pipe of the atomization system connects to the atomization water inlet and the atomization branch pipes, and the atomization nozzles are evenly arranged on the atomization branch pipes; the temperature monitoring and early warning system consists of a temperature detector and a temperature sensor located below the air cooler tube bundle, as well as an alarm bell, an alarm light, and a display screen on the side of the air cooler frame. This utility model uses atomized water above the fan to prevent the fan and transmission system from rusting and corroding in a humid environment. The air cooler tube bundle is arranged at an angle above the atomization nozzles to increase the heat exchange area. The temperature sensor displays the temperature in real time on the display screen for operator reference. When the temperature is too high, the temperature detector will sound an alarm bell, and the alarm light will flash to visually and audibly remind the operator of abnormal temperatures and to handle them promptly, preventing damage to the air cooler or accidents caused by excessive temperature. However, due to the single-stage humidification and heat exchange, the humidification effect is poor, and the heat exchange efficiency is low. Summary of the Invention

[0004] The purpose of this invention is to provide a novel multi-stage evaporative air cooler in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A novel multi-stage evaporative air cooler includes a frame assembly with several sets of direct-drive fan mounting ports. Each direct-drive fan mounting port has a direct-drive fan and a baffle plate for supporting the fan inside. The air outlet of each direct-drive fan mounting port forms an airflow path inside the frame assembly. Several sets of evaporation films and heat exchange tube bundles are sequentially arranged along the airflow path, with the evaporation films and heat exchange tube bundles arranged alternately.

[0007] As a further optimization of the present invention, the evaporation membrane and the heat exchange tube bundle are each provided with at least two sets, and the right side of the frame assembly and the end of the airflow path are provided with louvers. The evaporation membrane and the heat exchange tube bundle are provided with several sets to facilitate multiple humidification and heat exchange.

[0008] As a further optimization of the present invention, the frame assembly is provided with a front side region and a rear side region. A first direct-connected fan is provided in the front side region and a second direct-connected fan is provided in the rear side region. Each of the first and second direct-connected fans is provided with 3 sets. The evaporation film and heat exchange tube bundle are evenly distributed in the front side region and the rear side region. By providing 6 sets of direct-connected fans, energy saving and emission reduction are achieved, and it is also convenient for dry air to enter.

[0009] As a further optimization of the present invention, the evaporation membrane includes a rectangular frame, the interior of which is provided with a grid plate, and the top of the rectangular frame is provided with a plurality of sets of holes, the spacing between adjacent holes is equal and the central axes coincide with each other, and the holes are connected to the following nozzle for uniform water spraying.

[0010] As a further optimization of the present invention, the grid sheet has a honeycomb structure, which increases the contact area between air and water and reduces air resistance.

[0011] As a further optimization of the present invention, the rectangular frame is detachably mounted on the frame assembly, making it easy to disassemble and replace the rectangular frame.

[0012] As a further optimization of the present invention, the grid sheet is made of high-molecular fluorocarbon fiber membrane, which has good humidification and cooling effects.

[0013] As a further optimization of the present invention, a ladder platform assembly is provided on the top of the frame assembly, which is used for maintenance personnel to climb onto the platform for maintenance.

[0014] As a further optimization of the present invention, water pumps are provided on both the left and right sides of the frame assembly. The input end of the water pump is connected to a water tank, and the output end of the water pump is connected to a pipe. The free end of the pipe is provided with a nozzle, and the output end of the nozzle is connected to the top of the rectangular frame. Under the action of the water pump, the cooling water in the water tank is sprayed into the interior of the rectangular frame through the water pipe. The cooling water fills the interior of the grid plate. The honeycomb grid plate increases the contact area between air and water and reduces air resistance. Dry air becomes nearly saturated humid air after passing through the moist evaporation film.

[0015] The beneficial effects of this invention are as follows: In this novel multi-stage evaporative air cooler, dry outside air enters the airflow path through a direct-connected fan. The dry air first contacts the evaporation membrane, and after being humidified by the moist evaporation membrane, it becomes dry air with higher humidity and then contacts the heat exchange tube bundle, participating in the first heat exchange. After the first heat exchange, the air becomes dry air with lower humidity due to evaporation, and then it undergoes a second humidification through the evaporation membrane before participating in heat exchange again. If the air pressure allows, multiple humidification and heat exchange processes can be performed. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main view axis side structure of the present invention;

[0017] Figure 2 This is a top view of the structure of the present invention;

[0018] Figure 3 This is the invention Figure 1 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Frame assembly; 2. Direct-connect fan mounting port; 3. Direct-connect fan; 31. First direct-connect fan; 32. Second direct-connect fan; 4. Baffle; 5. Evaporation film; 51. Rectangular frame; 52. Grille; 53. Hole; 6. Heat exchange tube bundle; 7. Louver; 8. Ladder platform assembly; 9. Water pump. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Example

[0022] like Figure 1-2 As shown, a novel multi-stage evaporative air cooler includes a frame assembly 1. The frame assembly 1 is provided with several sets of direct-connect fan mounting ports 2. The direct-connect fan mounting ports 2 are provided with direct-connect fans 3 and baffles 4 for supporting the direct-connect fans 3. The air outlet of the direct-connect fan mounting ports 2 forms an airflow path inside the frame assembly 1. Several sets of evaporation films 5 and heat exchange tube bundles 6 are arranged sequentially on the airflow path. The evaporation films 5 and heat exchange tube bundles 6 are arranged alternately, and there are at least 2 sets of each of the evaporation films 5 and heat exchange tube bundles 6. A louver 7 is provided on the right side of the frame assembly 1 at the end of the airflow path.

[0023] Dry air enters the airflow path through the direct-connected fan 3. The dry air first comes into contact with the evaporation membrane 5. After being humidified by the moist evaporation membrane 5, it becomes dry air with higher humidity and then comes into contact with the heat exchange tube bundle 6, participating in the first heat exchange. After the first heat exchange, the air becomes dry air with lower humidity due to evaporation. At this time, it is humidified again through the evaporation membrane 5, and then participates in the heat exchange again. If the air pressure allows, multiple humidification and heat exchange processes can be performed.

[0024] The frame assembly 1 has a front area and a rear area. The front area has a first direct-connected fan 31 and the rear area has a second direct-connected fan 32. The first direct-connected fan 31 and the second direct-connected fan 32 are each provided with 3 sets. The evaporation film 5 and the heat exchange tube bundle 6 are evenly distributed in the front area and the rear area.

[0025] like Figure 3 As shown, the evaporation membrane 5 includes a rectangular frame 51, and a grid plate 52 is provided inside the rectangular frame 51. The grid plate 52 has a honeycomb structure and is made of high-molecular fluorocarbon fiber membrane. Several sets of holes 53 are provided at the top of the rectangular frame 51. The hole spacing between adjacent holes 53 is equal and the central axes coincide with each other. The rectangular frame 51 is detached and mounted on the frame assembly 1.

[0026] Water pumps 9 are provided on both the left and right sides of the frame assembly 1. The input end of the water pump 9 is connected to a water tank, and the output end of the water pump 9 is connected to a pipe. The free end of the pipe is equipped with a nozzle, and the output end of the nozzle is connected to the top of the rectangular frame 51. Under the action of the water pump 9, the cooling water in the water tank is sprayed into the interior of the rectangular frame 51 through the water pipe. The cooling water fills the interior of the grid plate 52. The honeycomb grid plate 52 increases the contact area between air and water and reduces air resistance. Dry air becomes nearly saturated humid air after passing through the moist evaporation film.

[0027] The top of the frame assembly 1 is provided with a ladder platform assembly 8, which is used for maintenance personnel to climb onto the platform for maintenance.

[0028] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A novel multi-stage evaporative air cooler, characterized in that: The system includes a frame assembly (1), which has several sets of direct-connect fan mounting ports (2). The direct-connect fan mounting ports (2) are equipped with a direct-connect fan (3) and a baffle (4) for supporting the direct-connect fan (3). The air outlet of the direct-connect fan mounting ports (2) forms an airflow path inside the frame assembly (1). Several sets of evaporation films (5) and heat exchange tube bundles (6) are arranged in sequence on the airflow path. The evaporation films (5) and heat exchange tube bundles (6) are arranged alternately. The evaporation membrane (5) includes a rectangular frame (51), the inside of the rectangular frame (51) is provided with a grid sheet (52), and the top position of the rectangular frame (51) is provided with a number of holes (53), the hole spacing between adjacent holes (53) is equal, and the central axes coincide with each other; The grid plate (52) has a honeycomb structure; The rectangular frame (51) is disassembled and mounted on the frame assembly (1); The material of the grid sheet (52) is a high-molecular fluorocarbon fiber membrane.

2. The novel multi-stage evaporative air cooler according to claim 1, characterized in that: The evaporation membrane (5) and the heat exchange tube bundle (6) are each provided with at least 2 sets, and the frame assembly (1) is provided with a louver (7) on the right side and at the end of the airflow path.

3. A novel multi-stage evaporative air cooler according to claim 1, characterized in that: The frame assembly (1) is provided with a front side area and a rear side area. A first direct-connect fan (31) is provided in the front side area, and a second direct-connect fan (32) is provided in the rear side area. The first direct-connect fan (31) and the second direct-connect fan (32) are each provided with 3 sets. The evaporation film (5) and the heat exchange tube bundle (6) are evenly distributed in the front side area and the rear side area.

4. A novel multi-stage evaporative air cooler according to claim 1, characterized in that: The top of the frame assembly (1) is provided with a ladder platform assembly (8).

5. A novel multi-stage evaporative air cooler according to claim 1, characterized in that: Water pumps (9) are provided on both the left and right sides of the frame assembly (1). The input end of the water pump (9) is connected to a water tank, and the output end of the water pump (9) is connected to a pipe. The free end of the pipe is provided with a nozzle, and the output end of the nozzle is connected to the top of the rectangular frame (51).

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