External protection device of indirect cooling tower

Abstract

The utility model discloses an external protection device of an indirect cooling tower, which comprises a frame body which is arranged outside a shutter on the windward side of a cooling triangle in a covering manner and is connected with the shutter in a sealing manner; the intercepting net is fixedly laid on the windward side of the frame body and used for intercepting large-size and easy-to-scatter objects such as blades blowing to the shutter; and the water mist spraying assembly is fixedly arranged on the inner wall of the frame body and used for spraying water mist to adsorb fine particles such as dust which penetrate through the intercepting net and are blown to the shutter. The frame body is arranged on the windward side of the shutter of the cooling triangle, and the intercepting net is arranged on the frame body, so that large-size and easily-scattered objects such as blades in wind are intercepted and prevented from entering the shutter; the water mist spraying assembly is arranged in the frame body, water mist is sprayed into the inner cavity of the frame body, fine particles such as dust penetrating through the intercepting net are captured and prevented from penetrating through the louver, and therefore attachments on the windward side of the cooling triangle are effectively reduced, and the cooling effect of the cooling triangle is ensured.

Description

Technical Field

[0001] This utility model relates to the field of indirect cooling tower protection technology, specifically to an external protection device for indirect cooling towers. Background Technology

[0002] Indirect air cooling towers, often simply called indirect cooling towers in the power industry, are a type of highly efficient cooling equipment widely used in modern industry. Their core components include multiple cooling pipes and heat dissipation fins, which constitute the heat exchange elements. In a typical indirect cooling tower design, these heat exchange elements are usually arranged in a triangular pattern, forming a so-called "cooling triangle." Adjustable louvers are installed on the windward side of the cooling triangle. By changing the opening of the louvers, the airflow entering the indirect cooling tower is adjusted, thereby controlling the cooling effect of the circulating water inside the cooling triangle.

[0003] However, in practical applications, it has been found that the external environmental conditions of indirect cooling towers have a certain impact on their performance. Blades, dust, and other small or easily dispersed objects in the external environment can easily pass through the louvers with the airflow and enter the interior of the indirect cooling tower, adhering to the heat dissipation fins of the cooling triangle. Over time, these impurities cause a decrease in the thermal conductivity of the heat dissipation fins, thus affecting the cooling effect of the circulating water in the cooling triangle. Currently, there is a lack of effective solutions on the market for external protection measures for indirect cooling towers.

[0004] Therefore, this application proposes an external protection device for indirect cooling towers to solve the above-mentioned technical problems. Utility Model Content

[0005] The main purpose of this utility model is to overcome the above-mentioned shortcomings and provide an external protection device for indirect cooling towers, which intercepts the blades, dust and other small or easily scattered objects carried by the outside air before it blows through the louvers towards the cooling triangle.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] An external protection device for an indirect cooling tower includes: a frame, which covers the outside of the louvers on the windward side of the cooling triangle and is sealed to the louvers; an interception net, which is fixedly laid on the windward side of the frame to intercept large, easily dispersed objects such as blades blown toward the louvers; and a water mist spraying assembly, which is fixedly installed on the inner wall of the frame to spray water mist to absorb fine particles such as dust that pass through the interception net and blow toward the louvers.

[0008] Furthermore, the water mist spraying assembly includes multiple positioning claws surrounding the inner cavity of the frame, an annular water pipe clamped on the positioning claws, multiple atomizing nozzles surrounding and communicating with the annular water pipe, and a water supply assembly communicating with the annular water pipe.

[0009] Furthermore, the water supply assembly includes a water storage tank and a water pump connected between the water storage tank and the annular water pipe, wherein the water storage tank is connected to the wastewater discharge pipe of the indirect cooling tower.

[0010] Furthermore, the bottom plate of the frame is provided with drainage holes.

[0011] Furthermore, it also includes a cleaning assembly disposed on the outer wall of the frame for sweeping away large, easily dispersed objects intercepted on the outer surface of the interception net. The cleaning assembly includes two lead screws symmetrically and rotatably disposed on the side wall of the frame, a brush assembly threadedly connected to both lead screws and abutting the outer surface of the interception net, and a drive assembly fixedly disposed on the top of the frame for driving the two lead screws to rotate synchronously in both forward and reverse directions.

[0012] Furthermore, the drive assembly includes a servo motor and a dual-output shaft reducer fixedly mounted on the top of the frame, a driving bevel gear fixedly mounted on the output shaft end of the dual-output shaft reducer, and a driven bevel gear fixedly mounted on the end of the lead screw and meshing with the driving bevel gear. The output shaft of the servo motor is connected to the input shaft of the dual-output shaft reducer.

[0013] Furthermore, the brush assembly includes a lifting base with both ends threadedly connected to the two lead screws and a brush screwed onto the lifting base, the brush abutting against the outer surface of the interception net.

[0014] The beneficial effects of this utility model are reflected in:

[0015] 1. This utility model features a frame on the windward side of the louvers of the cooling triangle, with an intercepting net on the frame to intercept large, easily dispersed objects such as blades in the wind, preventing them from entering the louvers. A water mist spraying component is installed inside the frame to spray water mist into the inner cavity, capturing fine particles such as dust that pass through the intercepting net and preventing them from passing through the louvers. This effectively reduces the amount of debris adhering to the windward side of the cooling triangle, ensuring its heat exchange efficiency with the air and thus guaranteeing the cooling effect of the cooling triangle.

[0016] 2. This utility model uses a cleaning assembly consisting of a lead screw, a brush assembly, and a drive assembly to sweep the outer surface of the interception net by setting a cleaning assembly on the outer wall of the frame. This sweeps away large, easily scattered objects such as blades attached to the net, ensuring the ventilation effect of the interception net and thus ensuring the cooling effect of the cooling triangle. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of the installation position according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the installation state according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram showing the removal of the present invention from the louvered window in one embodiment;

[0021] Figure 4 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0022] Figure 5 This is an embodiment of the present utility model. Figure 4 Enlarged view of the structure at point A;

[0023] Figure 6 This is an embodiment of the present utility model. Figure 4 Enlarged view of the structure at point B;

[0024] Figure 7 This is a schematic diagram of the brush assembly structure according to an embodiment of the present invention.

[0025] In the diagram: 1. Frame; 2. Louver; 3. Interception net; 4. Water mist spraying assembly; 41. Positioning claw; 42. Annular water pipe; 43. Atomizing nozzle; 44. Water supply assembly; 441. Water storage tank; 442. Water pump; 5. Drain hole; 6. Cleaning assembly; 61. Lead screw; 62. Brush assembly; 621. Lifting base; 622. Brush; 63. Drive assembly; 631. Servo motor; 632. Dual output shaft reducer; 633. Driving bevel gear; 634. Driven bevel gear. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] like Figure 1-7 As shown, this utility model provides an external protection device for an indirect cooling tower, comprising:

[0028] The frame 1 is installed outside the louvers 2 on the windward side of the cooling triangle and is sealed to the louvers 2; the interception net 3 is fixedly laid on the windward side of the frame 1 to intercept large, easily scattered objects such as blades blown towards the louvers 2; the water mist spraying assembly 4 is fixedly installed on the inner wall of the frame 1 to spray water mist to absorb fine particles such as dust blown towards the louvers 2 through the interception net 3.

[0029] In use, when wind carries large, easily dispersed objects such as blades towards the louvers 2, the blades, being larger than the mesh of the interception net 3, are blocked by the interception net 3 and cannot enter the louvers 2. However, fine particles such as dust in the wind can easily pass through the interception net 3. Because the water mist spraying component 4 continuously sprays water mist into the inner cavity of the frame 1, the fine particles such as dust that pass through the interception net 3 are easily absorbed and captured by the water mist as they are blown towards the louvers 2. After absorbing the dust, the water mist freely settles to the ground due to gravity, thus preventing the fine particles such as dust from passing through the louvers 2 and accumulating on the windward side of the cooling triangle.

[0030] In one embodiment, the water mist spraying assembly 4 includes a plurality of positioning claws 41 arranged around the inner cavity of the frame 1, an annular water pipe 42 clamped on the positioning claws 41, a plurality of atomizing nozzles 43 arranged around and connected to the annular water pipe 42, and a water supply assembly 44 connected to the annular water pipe 42.

[0031] With this design, the annular water pipe 42 is stably mounted on the inner wall of the frame 1 through the snap-fit ​​engagement with the positioning claw 41. The water supply component 44 inputs high-pressure water into the annular water pipe 42. The high-pressure water in the annular water pipe 42 is sprayed out after being atomized by the atomizing nozzle 43 and fills the entire inner cavity of the frame 1.

[0032] In one embodiment, the water supply assembly 44 includes a water storage tank 441 and a water pump 442 connected between the water storage tank 441 and the annular water pipe 42. The water storage tank 441 is connected to the sewage discharge pipe of the indirect cooling tower.

[0033] To maintain the quality of the cooling water in the circulating pipeline of the indirect cooling tower and prevent scale formation and biological growth, the indirect cooling tower usually discharges a portion of the cooling water periodically and replenishes it with fresh water. This portion of water is usually referred to as sludge or purging. The discharged water is injected into the storage tank 441 and pumped into the annular water pipe 42 by the water pump 442 to form water mist. This design reuses the wastewater from the indirect cooling tower, reducing water consumption.

[0034] In one embodiment, the bottom plate of the frame 1 has drainage holes 5.

[0035] With this design, the water mist settles and falls onto the bottom plate of the frame 1, where it condenses and forms a water flow that is then discharged through the drain hole 5.

[0036] In one embodiment, a cleaning assembly 6 is also provided on the outer wall of the frame 1 for sweeping away large, easily scattered objects intercepted on the outer surface of the interception net 3. The cleaning assembly 6 includes two lead rods 61 symmetrically and rotatably arranged on the side wall of the frame 1, a brush assembly 62 threadedly connected to the two lead rods 61 and abutting the outer surface of the interception net 3, and a drive assembly 63 fixedly arranged on the top of the frame 1 for driving the two lead rods 61 to rotate synchronously in both directions.

[0037] With this design, the drive component 63 drives the two lead screws 61 to rotate forward or in reverse at the same time, and then the two lead screws 61 drive the brush component 62 to move up and down along the axis of the lead screws 61. During the reciprocating movement, the brush component 62 continuously sweeps the outer surface of the interception net 3, sweeping away the large, easily scattered objects such as blades attached to it, thus ensuring the ventilation effect of the interception net 3.

[0038] In one embodiment, the drive assembly 63 includes a servo motor 631 and a dual-output shaft reducer 632 fixedly mounted on the top of the frame 1, an active bevel gear 633 fixedly mounted on the end of the output shaft of the dual-output shaft reducer 632, and a driven bevel gear 634 fixedly mounted on the end of the lead screw 61 and meshing with the active bevel gear 633. The output shaft of the servo motor 631 is connected to the input shaft of the dual-output shaft reducer 632.

[0039] With this design, the torque of the servo motor 631 is amplified by the dual output shaft reducer 632 and simultaneously drives the two active bevel gears 633 to rotate. The active bevel gears 633 mesh with the driven bevel gear 634 and the lead screw 61 to rotate together, thereby realizing the synchronous rotation of the two lead screws 61. By controlling the forward and reverse rotation of the servo motor 631, the forward and reverse drive of the lead screw 61 can be realized. By controlling the number of rotations of the servo motor 631, the stroke of the brush assembly 62 reciprocating on the lead screw 61 can be controlled.

[0040] In one embodiment, the brush assembly 62 includes a lifting base 621 with both ends threadedly connected to two lead screws 61 and a brush 622 screwed onto the lifting base 621, the brush 622 abutting against the outer surface of the interception net 3.

[0041] After long-term use, the bristles of brush 622 will wear down and will not be able to make contact with the outer surface of the interception net 3, resulting in the inability to effectively sweep away the attached objects on the outer surface of the interception net 3. This design allows brush 622 to be easily replaced by removing the screws, ensuring the overall cleaning effect of brush assembly 62.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0043] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0044] Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. An external protective device for an indirect cooling tower, characterized in that, include: The frame (1) is covered outside the louvers (2) on the windward side of the cooling triangle and is sealed to the louvers (2); The interception net (3) is fixedly laid on the windward side of the frame (1) to intercept large, easily scattered objects blown towards the louvers (2). The water mist spraying assembly (4) is fixedly installed on the inner wall of the frame (1) and is used to spray water mist to adsorb fine particles that pass through the interception net (3) and blow towards the louver (2).

2. The external protection device for an indirect cooling tower as described in claim 1, characterized in that, The water mist spraying assembly (4) includes multiple positioning claws (41) arranged around the inner cavity of the frame (1), an annular water pipe (42) clamped on the positioning claws (41), multiple atomizing nozzles (43) arranged around and connected to the annular water pipe (42), and a water supply assembly (44) connected to the annular water pipe (42).

3. The external protection device for an indirect cooling tower as described in claim 2, characterized in that, The water supply component (44) includes a water storage tank (441) and a water pump (442) connected between the water storage tank (441) and the annular water pipe (42). The water storage tank (441) is connected to the sewage discharge pipe of the intercooling tower.

4. The external protection device for an indirect cooling tower as described in claim 3, characterized in that, The bottom plate of the frame (1) is provided with drainage holes (5).

5. The external protection device for an indirect cooling tower as described in claim 1, characterized in that, It also includes a cleaning assembly (6) disposed on the outer wall of the frame (1) for sweeping away large, easily scattered objects intercepted on the outer surface of the interception net (3). The cleaning assembly (6) includes two lead screws (61) symmetrically and rotatably disposed on the side wall of the frame (1), a brush assembly (62) threadedly connected to both lead screws (61) and abutting the outer surface of the interception net (3), and a drive assembly (63) fixedly disposed on the top of the frame (1) for driving the two lead screws (61) to rotate synchronously in both forward and reverse directions.

6. The external protection device for an indirect cooling tower as described in claim 5, characterized in that, The drive assembly (63) includes a servo motor (631) and a dual-output shaft reducer (632) fixedly mounted on the top of the frame (1), an active bevel gear (633) fixedly mounted on the end of the output shaft of the dual-output shaft reducer (632), and a driven bevel gear (634) fixedly mounted on the end of the lead screw (61) and meshing with the active bevel gear (633). The output shaft of the servo motor (631) is connected to the input shaft of the dual-output shaft reducer (632) for transmission.

7. The external protection device for an indirect cooling tower as described in claim 5, characterized in that, The brush assembly (62) includes a lifting base (621) with both ends threadedly connected to the two lead screws (61) and a brush (622) screwed to the lifting base (621), the brush (622) abutting against the outer surface of the interception net (3).

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