A cold-proof energy-saving device for a cooling tower of a thermal power plant

Abstract

This utility model relates to the field of cooling tower cold protection technology and discloses a cold protection and energy-saving device for cooling towers in thermal power plants. The device includes: a cooling tower air inlet; a fixed ring plate installed on the air inlet; multiple insertion holes on the outer wall of the fixed ring plate; a windproof metal mesh on one side of the air inlet; multiple atomizing nozzles on one side of the air inlet; and an adjustment mechanism including a horizontal plate installed on one side of the fixed ring plate and a hinged seat installed at one end of the horizontal plate. A vertical plate is hinged to the bottom of the hinged seat, and the atomizing nozzles are installed on one side of the vertical plate. This utility model, through the adjustment mechanism, can flexibly adjust the angle of the atomizing nozzles, ensuring that the atomized water accurately covers the key cold-protected areas of the air inlet, adapting the icing range and thickness to actual needs, avoiding insufficient or excessive icing in certain areas that could affect the cold protection effect, and working in conjunction with the windproof metal mesh to improve the cold protection effect of the air inlet.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower cold protection technology, specifically a cold protection and energy-saving device for cooling towers in thermal power plants. Background Technology

[0002] Cooling towers in thermal power plants are core equipment in circulating water systems. They need to achieve cooling through heat exchange between air and circulating water to ensure stable operation of the unit. However, in low-temperature winter environments, the air inlet of the cooling tower is prone to a large influx of cold air, which affects the heat exchange efficiency. To address this issue, the industry has gradually developed various cold-proof and energy-saving devices. By regulating the air intake and maintaining the water temperature, these devices ensure that the cooling tower operates normally in low-temperature environments.

[0003] In the thermal power plant production system, the natural draft cooling tower, as the core equipment for circulating water cooling, directly affects the unit's energy efficiency and safety in low-temperature winter environments. The existing equipment has a fixed angle for the atomizing nozzles, which cannot flexibly adjust the spray range according to changes in ambient temperature and wind speed. This results in uneven ice thickness in key areas of the air inlet. If the ice is too thin in some areas, it will be difficult to block cold air, while if it is too thick, it will affect ventilation efficiency and may even cause the ice shell to fall off and hit the equipment. At the same time, under the influence of strong crosswinds or equipment vibration, the angle is prone to deviation, further weakening the protective effect of spray icing. Utility Model Content

[0004] The purpose of this utility model is to provide a cold-proof and energy-saving device for cooling towers in thermal power plants, which solves the problem in the prior art that the spray range cannot be flexibly adjusted according to changes in ambient temperature and wind speed, resulting in uneven ice thickness in key areas of the air inlet, where some areas are too thin to block cold air, while others are too thick, which affects ventilation efficiency.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A cold-proof and energy-saving device for cooling towers in thermal power plants, comprising: The cooling tower has an air inlet, on which a fixing ring plate is installed. The outer wall of the fixing ring plate has multiple insertion holes. A windproof metal mesh is provided on one side of the cooling tower air inlet, and multiple atomizing nozzles are provided on one side of the cooling tower air inlet. A connecting component is provided on the fixing ring plate. An adjustment mechanism is located on one side of a fixed ring plate and is used to adjust the angle of multiple atomizing nozzles. The adjustment mechanism includes a horizontal plate installed on one side of the fixed ring plate and a hinge seat installed at one end of the horizontal plate. A vertical plate is hinged to the bottom of the hinge seat. The atomizing nozzles are installed on one side of the vertical plate. A drive assembly for adjusting the vertical plate is provided at the bottom of the horizontal plate.

[0006] Preferably, the drive assembly includes a slot formed at the bottom of the horizontal plate and a connecting rod slidably installed inside the slot. An electric push rod is installed inside the slot, and the extended end of the electric push rod is connected to the connecting rod. A linkage plate is fixedly installed at one end of the connecting rod, and a stabilizing component is provided on one side of the linkage plate.

[0007] Preferably, the stabilizing component is used to assist in the adjustment of the vertical plate. The stabilizing component includes a plate hinged to one side of the linkage plate and a plurality of slots opened at one end of the vertical plate. The plate is inserted into the interior of one of the slots.

[0008] Preferably, the connecting mechanism includes a mounting ring plate installed on one side of the fixed ring plate and a plurality of insert rods fixedly installed on one end of the mounting ring plate, wherein the plurality of insert rods are inserted into the interior of the plurality of insert holes.

[0009] Preferably, the windproof metal mesh is provided with multiple auxiliary plates, and a connecting plate is installed between two of the auxiliary plates. The windproof metal mesh is stabilized by the two auxiliary plates. Multiple stabilizing rods are provided on each of the two auxiliary plates, and a connecting pipe is installed at one end of the multiple atomizing nozzles.

[0010] Preferably, a stabilizing plate is fixedly installed at one end of each of the plurality of horizontal plates, and the end of the stabilizing plate away from the horizontal plate is fixed to a mounting ring plate. Connecting rods are fixedly installed on both sides of the mounting ring plate, and two of the connecting rods are connected to the windproof metal mesh.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are: This invention, through the setting of the adjustment mechanism, can flexibly adjust the angle of the atomizing nozzle according to different low-temperature scenarios, ensuring that the atomized water can accurately cover the key cold-proof areas of the air inlet, so that the icing range and thickness are adapted to the actual needs, avoiding insufficient or excessive icing in some areas that would affect the cold-proofing effect. The drive component provides stable power, driving the relevant components to push the vertical plate to rotate smoothly, ensuring that the atomizing nozzle angle adjustment is precise and controllable, allowing the atomized water to be evenly distributed and iced in the target area, forming an ice layer that effectively blocks cold air. At the same time, it prevents the nozzle from shifting due to airflow or equipment vibration, ensuring a stable icing effect. Moreover, the components shake less during operation, and can work stably for a long time to cooperate with the spray icing operation, working together with the windproof metal mesh to improve the cold-proofing effect of the air inlet. Attached Figure Description

[0012] Figure 1 This is one of the overall structural schematic diagrams of this utility model; Figure 2 This is the second schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the structure of the auxiliary plate of this utility model; Figure 4This is a schematic diagram of the adjustment mechanism of this utility model; Figure 5 This is a schematic diagram of the internal structure of the adjustment mechanism of this utility model.

[0013] The components include: 1. Cooling tower air inlet; 2. Fixing ring plate; 3. Insertion hole; 4. Windproof metal mesh; 5. Mounting ring plate; 6. Insert rod; 7. Stabilizing plate; 8. Connecting pipe; 9. Atomizing nozzle; 10. Auxiliary plate; 11. Connecting plate; 12. Stabilizing rod; 13. Horizontal plate; 14. Connecting rod; 15. Electric push rod; 16. Linkage plate; 17. Insert plate; 18. Vertical plate; 19. Slot; 20. Hinge seat. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please refer to Figure 1 and Figure 2 A cooling tower anti-freezing and energy-saving device for thermal power plants includes: a cooling tower air inlet 1, a fixing ring plate 2 installed on the cooling tower air inlet 1, multiple insertion holes 3 on the outer wall of the fixing ring plate 2, a windproof metal mesh 4 on one side of the cooling tower air inlet 1, multiple atomizing nozzles 9 on one side of the cooling tower air inlet 1, and a connecting component on the fixing ring plate 2.

[0016] Please refer to Figure 4 and Figure 5 An adjustment mechanism is located on one side of the fixed ring plate 2 and is used to adjust the angle of multiple atomizing nozzles 9. The adjustment mechanism includes a horizontal plate 13 installed on one side of the fixed ring plate 2 and a hinge seat 20 installed at one end of the horizontal plate 13. A vertical plate 18 is hinged to the bottom of the hinge seat 20. The atomizing nozzles 9 are installed on one side of the vertical plate 18. A drive assembly for adjusting the vertical plate 18 is provided at the bottom of the horizontal plate 13. The drive assembly includes a slot opened at the bottom of the horizontal plate 13 and a connecting rod 14 slidably installed inside the slot. An electric push rod 15 is installed inside the slot. The extended end of the electric push rod 15 is connected to the connecting rod 14. A linkage plate 16 is fixedly installed at one end of the connecting rod 14. A stabilizing component is provided on one side of the linkage plate 16. First, the windproof metal mesh 4 on one side of the air inlet 1 of the cooling tower blocks some of the cold air from entering, reducing the interference of cold air on the spray icing effect. At the same time, multiple atomizing nozzles 9 spray atomized water after obtaining the medium through the connecting pipe 8. The atomized water quickly freezes in the low-temperature environment of the air inlet area, forming a layer of ice film or ice shell. This ice layer can further prevent a large amount of external cold air from entering the cooling tower. When it is necessary to adjust the spray direction of the atomizing nozzles 9 according to the cold protection needs of different areas of the air inlet, the electric push rod 15 in the slot at the bottom of the horizontal plate 13 is activated. The extended end of the electric push rod 15 pushes the sliding connecting rod 14 in the slot to move. The connecting rod 14 drives the linkage plate 16 fixed at one end to move synchronously. When the linkage plate 16 moves, it will drive the vertical plate 18 to rotate around the hinge seat 20 through the stabilizing component, thereby changing the spray angle of the atomizing nozzles 9, so that the atomized water can be accurately sprayed to the area of ​​the air inlet that needs to be protected from the cold, ensuring that a uniform and sufficiently thick ice layer is formed in this area, ensuring a stable spray icing effect, and continuously playing the role of blocking cold air and ensuring the normal operation of the cooling tower.

[0017] Furthermore, such as Figure 4 and Figure 5 As shown, the stabilizing component is used to assist in the adjustment of the vertical plate 18. The stabilizing component includes an insert plate 17 hinged to one side of the linkage plate 16 and multiple slots 19 opened at one end of the vertical plate 18. The insert plate 17 is inserted into the interior of one of the slots 19. Based on this, when the angle of the vertical plate 18 is adjusted to the correct position, the insert plate 17 is precisely inserted into the corresponding slot 19 of the vertical plate 18. The interlocking action between the insert plate 17 and the slot 19 restricts the rotation of the vertical plate 18, preventing the vertical plate 18 from shifting its angle due to airflow impact or equipment vibration during the operation of the cooling tower. This ensures that the atomizing nozzle 9 installed on one side of the vertical plate 18 can be stably maintained at the target spray angle.

[0018] Furthermore, such as Figure 1 and Figure 2 As shown, the connecting mechanism includes an installation ring plate 5 installed on one side of the fixed ring plate 2 and multiple insertion rods 6 fixedly installed on one end of the installation ring plate 5. The multiple insertion rods 6 are all inserted into the interior of multiple insertion holes 3. Based on this, firstly, the multiple insertion rods 6 at one end of the installation ring plate 5 are aligned with the multiple insertion holes 3 on the outer wall of the fixed ring plate 2, and the insertion rods 6 are fully inserted into the interior of the insertion holes 3. Through the insertion and removal of the insertion rods 6 and the insertion holes 3, the initial connection between the fixed ring plate 2 and the installation ring plate 5 is completed. Subsequently, the installation ring plate 5 will also be connected to components such as the windproof metal mesh 4 and the horizontal plate 13 in the adjustment mechanism, so that the windproof metal mesh 4, the atomizing nozzle 9 and other cold-proof components can be stably assembled on one side of the cooling tower air inlet 1.

[0019] Furthermore, such as Figure 1 - Figure 3As shown, the windproof metal mesh 4 is provided with multiple auxiliary plates 10, and a connecting plate 11 is installed between two auxiliary plates 10. The windproof metal mesh 4 is stabilized by the two auxiliary plates 10. Multiple stabilizing rods 12 are provided on each of the two auxiliary plates 10. A connecting pipe 8 is installed at one end of multiple atomizing nozzles 9. Based on this, firstly, for the stable installation of the windproof metal mesh 4, multiple auxiliary plates 10 are set on its surface. The windproof metal mesh 4 is clamped and supported by two auxiliary plates 10. At the same time, the connecting plate 11 is installed between two auxiliary plates 10 to further enhance the connection strength between the auxiliary plates 10 and prevent the auxiliary plates 10 from shifting under force. Secondly, the connecting pipe 8 can realize the unified delivery and distribution of atomizing medium, ensuring that each atomizing nozzle 9 can stably obtain sufficient medium and avoid uneven spraying effect due to insufficient liquid supply from a single nozzle. Moreover, a water pump is provided at one end of the connecting pipe 8, and the water pump is placed in the water storage tank of the cooling tower, using circulating cooling water as the water source, thereby improving the overall energy-saving effect of the device.

[0020] Please also refer to... Figure 2 A stabilizing plate 7 is fixedly installed at one end of each of the multiple horizontal plates 13. The end of the stabilizing plate 7 away from the horizontal plate 13 is fixed to the mounting ring plate 5. Connecting rods 14 are fixedly installed on both sides of the mounting ring plate 5. The two connecting rods 14 are connected to the windproof metal mesh 4.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cold-proof and energy-saving device for cooling towers in thermal power plants, characterized in that, include: A cooling tower air inlet (1) is provided with a fixed ring plate (2) installed on the cooling tower air inlet (1). The outer wall of the fixed ring plate (2) is provided with multiple insertion holes (3). A windproof metal mesh (4) is provided on one side of the cooling tower air inlet (1). Multiple atomizing nozzles (9) are provided on one side of the cooling tower air inlet (1). A connecting component is provided on the fixed ring plate (2). An adjustment mechanism is located on one side of a fixed ring plate (2) and is used to adjust the angle of a plurality of atomizing nozzles (9). The adjustment mechanism includes a horizontal plate (13) installed on one side of the fixed ring plate (2) and a hinge seat (20) installed at one end of the horizontal plate (13). A vertical plate (18) is hinged to the bottom of the hinge seat (20). The atomizing nozzles (9) are installed on one side of the vertical plate (18). A drive assembly for adjusting the vertical plate (18) is provided at the bottom of the horizontal plate (13).

2. The cold-proof and energy-saving device for cooling towers in thermal power plants according to claim 1, characterized in that: The drive assembly includes a slot at the bottom of the horizontal plate (13) and a connecting rod (14) slidably installed inside the slot. An electric push rod (15) is installed inside the slot. The extended end of the electric push rod (15) is connected to the connecting rod (14). A linkage plate (16) is fixedly installed at one end of the connecting rod (14). A stabilizing component is provided on one side of the linkage plate (16).

3. The cold-proof and energy-saving device for cooling towers in thermal power plants according to claim 2, characterized in that: The stabilizing component is used to assist in the adjustment of the vertical plate (18). The stabilizing component includes a plug plate (17) hinged to one side of the linkage plate (16) and a plurality of slots (19) opened at one end of the vertical plate (18). The plug plate (17) is inserted into the interior of one of the slots (19).

4. The cold-proof and energy-saving device for cooling towers in thermal power plants according to claim 3, characterized in that: The connecting mechanism includes a mounting ring plate (5) installed on one side of the fixed ring plate (2) and a plurality of insert rods (6) fixedly installed on one end of the mounting ring plate (5), wherein the plurality of insert rods (6) are inserted into the interior of the plurality of insert holes (3).

5. The cold-proof and energy-saving device for cooling towers in thermal power plants according to claim 1, characterized in that: The windproof metal mesh (4) is provided with multiple auxiliary plates (10), and a connecting plate (11) is installed between two auxiliary plates (10). The windproof metal mesh (4) is stabilized by the two auxiliary plates (10). Multiple stabilizing rods (12) are provided on each of the two auxiliary plates (10). One end of the multiple atomizing nozzles (9) is connected to a connecting pipe (8).

6. The cold-proof and energy-saving device for cooling towers in thermal power plants according to claim 5, characterized in that: A stabilizing plate (7) is fixedly installed at one end of each of the multiple horizontal plates (13). The end of the stabilizing plate (7) away from the horizontal plate (13) is fixed to the mounting ring plate (5). Connecting rods (14) are fixedly installed on both sides of the mounting ring plate (5). Two of the connecting rods (14) are connected to the windproof metal mesh (4).

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