Energy-saving layered airflow guide structure of indirect evaporation water cooling tower

Abstract

The utility model discloses an energy-saving layered airflow guide structure of an indirect evaporation water cooling tower, which comprises a lower box body and an upper box body, wherein the upper box body is connected to the upper part of the lower box body; a heat exchange tube is coiled in the upper box body, guide plates are mounted on two sides of the upper box body, a frustum box is mounted at the upper end of the upper box body, and a vortex plate is mounted on the inner wall of the frustum box; secondary air flow is guided through the flow guide plate, the secondary air flow flows back through the vortex part, the secondary air flow can flow slowly, and effective heat exchange is achieved; the vortex plate increases the flow speed of secondary airflow, so that the turbine blades can be blown conveniently; and the spoiler is arranged in the middle of the heat exchange tube, the secondary airflow is shunted through the spoiler, the situation that the vortex parts on the two sides enable the secondary airflow to flow back to cause the collision influence is prevented, the stability of the secondary airflow in the flowing process is improved, and secondary airflow turbulence cannot be caused.

Description

Technical Field

[0001] This utility model relates to evaporative cooling towers, and more specifically to airflow guidance, specifically an energy-saving layered airflow guidance structure for indirect evaporative cooling towers. Background Technology

[0002] Indirect evaporative cooling refers to the process of transferring the cooling capacity of humidified air (secondary air) obtained through direct evaporative cooling to the air to be treated (primary air) through a non-direct contact heat exchanger, achieving equal humidity and temperature reduction. Indirect evaporative cooling technology can extract cooling capacity from the natural environment. Compared with conventional mechanical refrigeration, it can save 80%–90% of energy in hot and dry regions, 20%–25% in hot and humid regions, and 40% in moderate humidity regions, thus significantly reducing air conditioning energy consumption.

[0003] Indirect evaporative cooling technology can be achieved using indirect evaporative coolers. The main types of indirect evaporative coolers on the market are plate-type and tubular-type. Plate-type indirect evaporative coolers have the advantages of high heat exchange efficiency and a relatively mature manufacturing process, making them widely used. Their main problems are narrow flow channels, which are prone to clogging, especially in environments with high dust content. With increasing operating time, heat exchange efficiency decreases sharply, flow resistance is high, water distribution is uneven, and wetting ability is poor. Furthermore, the metal materials used are susceptible to corrosion, leading to scaling and maintenance difficulties. Tubular indirect evaporative coolers, on the other hand, have the advantages of uniform water distribution, easily forming a stable water film, which is beneficial for evaporative cooling. They also have wider air flow channels, preventing clogging and resulting in low flow resistance. Additionally, the secondary air flow channels and fans are easier to arrange.

[0004] Indirect evaporative cooling towers use secondary air to cool primary air during operation. However, directly blowing secondary air can cause the secondary air to flow too fast, making effective heat exchange impossible and resulting in resource waste. Utility Model Content

[0005] One objective of this invention is to provide a new technical solution for an energy-saving, layered airflow guiding structure for an indirect evaporative cooling tower.

[0006] According to a first aspect of the present invention, an energy-saving layered airflow guiding structure for an indirect evaporative cooling tower is provided, comprising a lower casing and an upper casing, wherein the upper casing is connected to the upper part of the lower casing;

[0007] The upper housing has heat exchange tubes fixedly coiled inside. Guide plates are fixedly installed on both sides of the upper housing. The heat exchange tubes are located inside and above the guide plates on both sides. A frustum box is fixedly installed at the upper end of the upper housing. A discharge pipe is fixedly installed at the upper end of the frustum box. A vortex plate is fixedly installed on the inner wall of the frustum box. A servo motor is fixedly installed inside the discharge pipe. The output end of the servo motor is connected to a turbine blade.

[0008] The guide plate includes a first protrusion, a second protrusion, a vortex section, an inlet, an outlet, and a mounting section. The first protrusion is located at the lower part of the guide plate, the second protrusion is located at the upper part of the guide plate, the vortex section is located between the first protrusion and the second protrusion, an inlet is provided on one side of the upper end of the guide plate, and an outlet is provided on the other side of the lower end of the guide plate. The inlet and the outlet form a drainage channel inside the guide plate.

[0009] Furthermore, flow holes are provided on the upper ends of both sides of the lower housing, and a first protective mesh plate is fixedly installed inside the flow holes.

[0010] Furthermore, the lower housing is equipped with a submersible miniature water pump, which is connected to a water supply pipe, and a diversion box is fixedly installed on one side of the upper housing.

[0011] Furthermore, several branch pipes are fixedly installed inside the upper end of the upper housing, and several water spray heads are fixedly connected to the lower part of the branch pipes. The ends of the several branch pipes are fixedly connected to the diversion box.

[0012] Furthermore, one end of the heat exchange tube penetrates the upper part of the upper housing, and the other end of the heat exchange tube penetrates the lower part of the upper housing. The upper end of the heat exchange tube is connected to the air inlet pipe, and the lower end of the heat exchange tube is connected to the exhaust pipe.

[0013] Furthermore, a baffle plate is provided through the middle of the heat exchange tube. The baffle plate is designed with a rounded lower end and a pointed upper end with a teardrop-shaped cross-section. The two sides of the baffle plate are fixedly connected to the inner wall of the upper casing.

[0014] Furthermore, a cross-shaped fin frame is fixedly installed inside the discharge pipe, the servo motor is fixedly installed in the middle of the cross-shaped fin frame, and a second protective mesh plate is fixedly installed on the top of the discharge pipe.

[0015] Furthermore, the mounting portion is disposed on the upper and lower sides of the guide plate, and the mounting portion is fixedly connected to the inner wall of the upper housing.

[0016] Furthermore, several heat exchange tubes are arranged at equal intervals, and the upper end of the baffle is located at the center between the two guide plates on both sides, and the upper end of the baffle is located at the lower part of the second protrusion.

[0017] Furthermore, both the intake pipe and the exhaust pipe are provided with manifolds at their ends, and the two manifolds are fixedly connected to both ends of the heat exchange pipe, and the manifolds are fixedly installed on both sides of the upper housing.

[0018] According to one embodiment of this disclosure, the present invention guides the secondary airflow through a guide plate. The guide plate includes a first protrusion, a second protrusion, a vortex section, an inlet, an outlet, and a mounting section. The first protrusion narrows the channel for the secondary airflow and allows it to flow into the vortex section. The vortex section causes the secondary airflow to flow back, thus blocking the secondary airflow and allowing it to flow slowly. This enables effective heat exchange with the primary airflow inside the heat exchange tube. The second protrusion slows down the outflow of the secondary airflow and increases its velocity during outflow.

[0019] Inside the frustum-shaped structure are a vortex plate, a servo motor, and turbine blades. The secondary airflow, which increases its velocity, is further accelerated by the vortex plate, allowing it to flow rapidly and blow on the turbine blades. This enables the turbine blades to rotate without the servo motor, thus expelling the secondary airflow. Under low-velocity requirements, the turbine blades can be automatically driven by the velocity of the secondary airflow to expel the secondary airflow without activating the servo motor. Under high-velocity requirements, the servo motor can be activated to work in conjunction with the secondary airflow to expel the secondary airflow.

[0020] Furthermore, a baffle is installed in the middle of the heat exchange tube to split the secondary airflow, preventing the secondary airflow from flowing back and causing collisions due to the vortex on both sides, thereby improving the stability of the secondary airflow flow process and preventing secondary airflow turbulence.

[0021] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0023] Figure 1 This is a schematic diagram of the overall structure of an energy-saving layered airflow guiding structure for an indirect evaporative cooling tower in one embodiment;

[0024] Figure 2 This is a schematic diagram of the internal structure of an energy-saving layered airflow guiding structure for an indirect evaporative cooling tower in one embodiment;

[0025] Figure 3 This is a partial internal structure diagram of an energy-saving layered airflow guiding structure for an indirect evaporative cooling tower in one embodiment;

[0026] Figure 4 This is a cross-sectional schematic diagram of the upper structure of an energy-saving layered airflow guiding structure for an indirect evaporative cooling tower in one embodiment;

[0027] Figure 5 This is a schematic diagram of the internal structure of the upper part of an energy-saving layered airflow guiding structure for an indirect evaporative cooling tower in one embodiment.

[0028] Figure 6 This is a schematic diagram of the backflow plate structure of an energy-saving layered airflow guiding structure for an indirect evaporative cooling tower in one embodiment.

[0029] The diagram shows the following components: 1. Lower housing; 2. Upper housing; 3. Heat exchanger tube; 4. Miniature water pump; 5. Water supply pipe; 6. Diverter box; 7. Branch pipe; 8. Sprinkler head; 9. Guide plate; 901. First protrusion; 902. Second protrusion; 903. Vortex section; 904. Inlet; 905. Outlet; 906. Mounting section; 10. Frustum box; 11. Discharge pipe; 12. Vortex plate; 13. Cross-shaped fin frame; 14. Servo motor; 15. Turbine blade; 16. Second protective mesh plate; 17. First protective mesh plate; 18. Air inlet pipe; 19. Exhaust pipe; 20. Manifold box; 21. Baffle plate. Detailed Implementation

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0031] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0032] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0033] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0034] like Figure 1-6 As shown, an energy-saving layered airflow guiding structure for an indirect evaporation cooling tower includes a lower box 1 and an upper box 2, with the upper box 2 connected to the upper part of the lower box 1.

[0035] The upper housing 2 has a heat exchange tube 3 fixedly coiled inside. The upper housing 2 has guide plates 9 fixedly installed on both sides. The heat exchange tube 3 is located inside and above the guide plates 9 on both sides. The upper end of the upper housing 2 has a truncated cone box 10 fixedly installed. The upper end of the truncated cone box 10 has a discharge pipe 11 fixedly installed. The inner wall of the truncated cone box 10 has a vortex plate 12 fixedly installed. The discharge pipe 11 has a servo motor 14 fixedly installed inside. The output end of the servo motor 14 is connected to a turbine blade 15.

[0036] The guide plate 9 includes a first protrusion 901, a second protrusion 902, a vortex section 903, an inlet 904, an outlet 905, and a mounting section 906. The first protrusion 901 is located at the lower part of the guide plate 9, the second protrusion 902 is located at the upper part of the guide plate 9, and the vortex section 903 is located between the first protrusion 901 and the second protrusion 902. An inlet 904 is provided on one side of the upper end of the guide plate 9, and an outlet 905 is provided on the other side of the lower end of the guide plate 9. The inlet 904 and the outlet 905 form a drainage channel inside the guide plate 9.

[0037] In this embodiment, preferably, flow holes are provided on the upper ends of both sides of the lower box 1, and a first protective mesh plate 17 is fixedly installed inside the flow holes;

[0038] It should be noted that the flow holes on both sides are designed to draw in secondary airflow, which allows the secondary airflow to carry water from inside the lower chamber 1 and exchange heat with the primary airflow inside the heat exchange tube 3. The first protective mesh plate 17 is designed to filter out impurities in the secondary airflow and prevent impurities from entering the interior of the lower chamber 1.

[0039] In this embodiment, preferably, the lower housing 1 is equipped with a submersible micro water pump 4, the micro water pump 4 is connected to a water supply pipe 5, and a diversion box 6 is fixedly installed on one side of the upper housing 2.

[0040] It should be noted that the micro water pump 4 is configured to extract water from the lower housing 1 for cooling and heat exchange, and the water supply pipe 5 is used to transport the water extracted by the micro water pump 4 to the inside of the distribution box 6.

[0041] In this embodiment, preferably, a plurality of branch pipes 7 are fixedly installed inside the upper end of the upper box 2, a plurality of water spray heads 8 are fixedly connected to the lower part of the branch pipes 7, and the ends of the plurality of branch pipes 7 are fixedly connected to the diversion box 6.

[0042] It should be noted that the arrangement of several branch pipes 7 and several water spray heads 8 is used to spray water from inside the distribution box 6 into the upper box 2, which facilitates heat dissipation and heat exchange of the primary airflow inside the heat exchange tube 3.

[0043] In this embodiment, preferably, one end of the heat exchange tube 3 penetrates the upper part of the upper housing 2, and the other end of the heat exchange tube 3 penetrates the lower part of the upper housing 2. One end of the heat exchange tube 3 at the upper part is connected to the air inlet pipe 18, and one end of the heat exchange tube 3 at the lower part is connected to the exhaust pipe 19.

[0044] It should be noted that the two ends of the heat exchange tube 3 pass through the upper housing 2 respectively, and are used to connect the air inlet pipe 18 and the exhaust pipe 19, so as to facilitate the input and discharge of the primary airflow and facilitate the heat exchange of the primary airflow.

[0045] In this embodiment, preferably, a baffle plate 21 is provided through the middle of the heat exchange tube 3. The baffle plate 21 is configured with a rounded lower end and a pointed upper end with a teardrop-shaped cross-section. The two sides of the baffle plate 21 are fixedly connected to the inner wall of the upper box 2.

[0046] It should be noted that the design of the baffle 21 is to divide the heat exchange tube 3 into two parts, and the lower end of the baffle 21 is set as a round head and the upper end is set as a pointed head, which can achieve the diversion of the secondary airflow and prevent the secondary airflow from being backflowed and causing collision effects due to the vortex part 903 on both sides.

[0047] In this embodiment, preferably, a cross-shaped wing frame 13 is fixedly provided inside the discharge pipe 11, a servo motor 14 is fixedly installed in the middle of the cross-shaped wing frame 13, and a second protective mesh plate 16 is fixedly provided on the top of the discharge pipe 11.

[0048] It should be noted that the servo motor 14 is fixedly installed by the cross wing bracket 13 to maintain the stability of the servo motor 14, and the second protective mesh plate 16 is set to prevent debris from entering the interior of the discharge pipe 11.

[0049] In this embodiment, preferably, the mounting part 906 is disposed on the upper and lower sides of the guide plate 9, and the mounting part 906 is fixedly connected to the inner wall of the upper box 2.

[0050] It should be noted that the mounting part 906 is designed to fix the guide plate 9 on the inner wall of the upper housing 2 to maintain the stability of the guide plate 9.

[0051] In this embodiment, preferably, several heat exchange tubes 3 are arranged at equal intervals, and the upper end of the baffle 21 is located at the center between the two guide plates 9, and the upper end of the baffle 21 is located at the lower part of the second protrusion 902.

[0052] It should be noted that there are several heat exchange tubes 3, and the baffle 21 is located in the lower middle part of the guide plate 9, which can split the secondary airflow and prevent the secondary airflow from colliding with the vortex part 903 on both sides. In addition, the heat exchange tubes 3 are evenly spaced, which can achieve stable heat exchange and ensure the stable flow of the secondary airflow.

[0053] In this embodiment, preferably, both the inlet pipe 18 and the exhaust pipe 19 are provided with a manifold 20 at their ends. The two manifolds 20 are fixedly connected to both ends of the heat exchange pipe 3, and the manifolds 20 are fixedly installed on both sides of the upper housing 2.

[0054] It should be noted that the intake pipe 18 and the exhaust pipe 19 are connected to the heat exchange tube 3 through the manifold 20, which facilitates the splitting and merging of the primary airflow with the heat exchange tube 3 through the manifold 20, and facilitates the guidance of the primary airflow.

[0055] The specific operational procedures for this application are as follows:

[0056] When in use, the lower chamber 1 is filled with tap water, and the primary airflow is delivered to the heat exchange tube 3 through the air inlet pipe 18 and the exhaust pipe 19, and the heat exchange tube 3 is discharged. Since the tap water inside the lower chamber 1 is at a low temperature, the servo motor 14 is started first, so that the servo motor 14 can drive the turbine blade 15 to rotate, thereby causing the secondary airflow to flow.

[0057] Then, when the secondary airflow is initially driven by the servo motor 14 and turbine blade 15, the first protrusion 901 of the guide plate 9 reverses the secondary airflow, and the vortex 903 causes the airflow to flow back, allowing the secondary airflow to remain inside the heat exchange tube 3 inside the upper casing 2 for a long time, enabling continuous heat exchange on the heat exchange tube 3. Furthermore, the baffle 21 diverts the secondary airflow, preventing collisions caused by the vortex 903 on both sides, thus improving the stability of the secondary airflow flow and preventing turbulence. During the stable flow process, the second protrusion 902 narrows the outlet of the secondary airflow, causing the secondary airflow to flow through the second protrusion 902. The lower part has a relatively slow flow velocity, which can increase the heat exchange effect. The upper part of the second protrusion 902 has a smaller outlet, which can increase the flow velocity of the secondary airflow. The secondary airflow is further increased by passing through the vortex plate 12 inside the truncated cone box 10, thereby blowing the turbine blade 15. When the turbine blade 15 is driven, the servo motor 14 can be turned off, so that the turbine blade 15 can be automatically driven to rotate by the secondary airflow, and the secondary airflow can be automatically discharged. Under low flow velocity requirements, the servo motor 14 can be turned off, and the turbine blade 15 can be automatically driven to discharge the secondary airflow by the flow velocity of the secondary airflow. Under high flow velocity requirements, the servo motor 14 can be turned on, so that the servo motor 14 can cooperate with the secondary airflow to discharge the secondary airflow.

[0058] The micro water pump 4 delivers tap water to the inside of the branch pipe 7 through the water supply pipe 5, so that the branch pipe 7 can spray water through the water spray head 8, so that the water flow can fall on the upper part of the guide plate 9 and the upper part of the heat exchange tube 3, thereby improving the heat exchange efficiency. The water flow on the guide plate 9 is discharged through the inlet 904 and the outlet 905, and flows back into the lower box 1, thereby realizing the recycling of the water flow.

[0059] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An energy-saving layered airflow guiding structure for an indirect evaporative cooling tower, characterized in that: The lower housing (1) and the upper housing (2) are connected to the upper part of the lower housing (1); The upper housing (2) has a heat exchange tube (3) fixedly coiled inside. The upper housing (2) has guide plates (9) fixedly installed on both sides. The heat exchange tube (3) is located inside and above the guide plates (9) on both sides. The upper end of the upper housing (2) has a truncated cone box (10) fixedly installed. The upper end of the truncated cone box (10) has a discharge pipe (11) fixedly installed. The inner wall of the truncated cone box (10) has a vortex plate (12) fixedly installed. The discharge pipe (11) has a servo motor (14) fixedly installed inside. The output end of the servo motor (14) is connected to a turbine blade (15). The guide plate (9) includes a first protrusion (901), a second protrusion (902), a vortex section (903), an inlet (904), an outlet (905), and a mounting section (906). The first protrusion (901) is located at the lower part of the guide plate (9), the second protrusion (902) is located at the upper part of the guide plate (9), and the vortex section (903) is located between the first protrusion (901) and the second protrusion (902). An inlet (904) is provided on one side of the upper end of the guide plate (9), and an outlet (905) is provided on the other side of the lower end of the guide plate (9). The inlet (904) and the outlet (905) are arranged inside the guide plate (9) to form a drainage channel.

2. The energy-saving layered airflow guiding structure of an indirect evaporative cooling tower according to claim 1, characterized in that: The lower housing (1) has flow holes on both sides at the upper end, and a first protective mesh plate (17) is fixedly installed inside the flow holes.

3. The energy-saving layered airflow guiding structure of an indirect evaporative cooling tower according to claim 1, characterized in that: The lower housing (1) is equipped with a submersible micro water pump (4), and the micro water pump (4) is connected to a water supply pipe (5). A diversion box (6) is fixedly installed on one side of the upper housing (2).

4. The energy-saving layered airflow guiding structure of an indirect evaporative cooling tower according to claim 3, characterized in that: The upper end of the upper box (2) is fixedly installed with several branch pipes (7), and the lower part of the branch pipes (7) is fixedly connected to several water spray heads (8). The ends of the several branch pipes (7) are fixedly connected to the diversion box (6).

5. The energy-saving layered airflow guiding structure of an indirect evaporative cooling tower according to claim 1, characterized in that: One end of the heat exchange tube (3) passes through the upper part of the upper box (2), and the other end of the heat exchange tube (3) passes through the lower part of the upper box (2). One end of the heat exchange tube (3) at the upper part is connected to the air inlet pipe (18), and one end of the heat exchange tube (3) at the lower part is connected to the exhaust pipe (19).

6. The energy-saving layered airflow guiding structure of an indirect evaporative cooling tower according to claim 1, characterized in that: A baffle plate (21) is provided through the middle of the heat exchange tube (3). The baffle plate (21) is configured with a rounded lower end and a pointed upper end with a teardrop-shaped cut surface. The two sides of the baffle plate (21) are fixedly connected to the inner wall of the upper box (2).

7. The energy-saving layered airflow guiding structure of an indirect evaporative cooling tower according to claim 1, characterized in that: The discharge pipe (11) is fixedly provided with a cross wing frame (13), the servo motor (14) is fixedly installed in the middle of the cross wing frame (13), and the top of the discharge pipe (11) is fixedly provided with a second protective mesh plate (16).

8. The energy-saving layered airflow guiding structure of an indirect evaporative cooling tower according to claim 1, characterized in that: The mounting part (906) is disposed on the upper and lower sides of the guide plate (9), and the mounting part (906) is fixedly connected to the inner wall of the upper box (2).

9. The energy-saving layered airflow guiding structure of an indirect evaporative cooling tower according to claim 6, characterized in that: The heat exchange tubes (3) are arranged at equal intervals, and the upper end of the baffle (21) is located at the center between the two guide plates (9) on both sides, and the upper end of the baffle (21) is located at the lower part of the second protrusion (902).

10. The energy-saving layered airflow guiding structure of an indirect evaporative cooling tower according to claim 5, characterized in that: Both the intake pipe (18) and the exhaust pipe (19) are provided with a manifold (20) at their ends. The two manifolds (20) are fixedly connected to both ends of the heat exchange pipe (3). The manifolds (20) are fixedly installed on both sides of the upper housing (2).

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