Cooling tower herringbone column air inlet opening and closing device

Abstract

The utility model discloses a cooling tower herringbone column air inlet opening and closing device which comprises fixing supports, the fixing supports are fixedly installed on the ground on the outer side of the bottom of a cooling tower, the multiple fixing supports are installed along the circumference of the cooling tower in an array mode, an air inlet is formed between every two adjacent fixing supports, and air curtain guide rails are arranged on the two sides of each air inlet. A ceiling is installed on the outer side of the cooling tower in a surrounding mode, air curtain drivers are arranged above the air inlets, air adjusting curtains are installed at the output ends of the air curtain drivers, the two sides of each air adjusting curtain are slidably installed on air curtain guide rails, waterproof curtains are fixedly installed on the ceiling, balance weight cross rods are fixedly connected to the lower ends of the waterproof curtains, and the waterproof curtains are located on the sides, close to the cooling tower, of the air adjusting curtains. A plurality of hooks are installed at the lower end of the air adjusting curtain in an array mode. The balance weight cross rod is placed on the hooks. A double-layer protection structure is formed by the air adjusting curtain and the waterproof curtain, the waterproof curtain is arranged at the position close to the cooling tower, contact between moisture in the cooling tower and the air adjusting curtain is reduced, and then the situation that opening and closing are affected by freezing of the air adjusting curtain is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of cooling tower cold protection technology, and relates to a cooling tower herringbone column air inlet opening and closing device. Background Technology

[0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from the system and release it into the atmosphere in order to lower the water temperature. Cooling towers are an important facility in thermal power plants.

[0003] Cooling towers in thermal power plants are highly susceptible to freezing damage during low-temperature seasons. A cooling tower follow-up folding curtain type energy-saving cold protection system is disclosed in patent document CN202442604U. It adopts a method of setting multiple follow-up folding curtain electric air adjustment components on the outside of the A-frame column on the air inlet side of the cooling tower to adjust the air intake volume on the A-frame column side of the cooling tower according to the ambient temperature and wind speed.

[0004] However, the interior of the cooling tower is a water vapor environment, which easily condenses into water in winter and then freezes on the folding curtain, affecting the opening and closing of the folding curtain. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes a cooling tower herringbone column air inlet opening and closing device, which effectively solves the problems in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A cooling tower A-frame column air inlet opening and closing device, comprising:

[0008] A fixed bracket is fixedly installed on the ground outside the bottom of the cooling tower, and multiple fixed brackets are installed in an array along the circumference of the cooling tower.

[0009] The air curtain guide rail has an air inlet between two adjacent fixed brackets, and the air curtain guide rail is provided on both sides of the air inlet.

[0010] A canopy is installed around the outside of the cooling tower, and the outside of the canopy is fixedly installed on the fixed bracket;

[0011] Air curtain drive, each air inlet is provided with an air curtain drive, and the air curtain drive is fixedly installed on the fixed bracket;

[0012] An air conditioning curtain is installed at the output end of the air conditioning curtain drive, and the air conditioning curtain can be slidably installed on both sides of the air conditioning curtain guide rail;

[0013] A waterproof curtain, the upper end of which is fixedly installed on the ceiling, and a counterweight crossbar is fixedly connected to the lower end of which is located on the side of the air conditioning curtain closest to the cooling tower;

[0014] The hooks, and multiple hook arrays are installed at the lower end of the air conditioning curtain, the counterweight crossbar is placed on the hooks, and the waterproof curtain is stacked on the hooks when the air conditioning curtain is raised.

[0015] Optionally, multiple base mounting components are installed in a circular array on the outer side of the cooling tower, and the fixed bracket is installed on the base mounting components. A receiving groove is provided above the base mounting components, and a wind-resistant rod is provided at the lower end of the air curtain. When the air curtain is lowered, the wind-resistant rod is located in the receiving groove.

[0016] Optionally, a U-shaped groove is fixedly installed at the bottom of the receiving groove, and an electric heating wire is installed between the U-shaped groove and the receiving groove.

[0017] Optionally, the air conditioning curtain is a stacked curtain.

[0018] Optionally, the waterproof curtain includes a plurality of waterproof fabric blocks connected end to end in sequence, and a counterweight crossbar is provided between adjacent waterproof fabric blocks.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. A double-layer protective structure is formed by the air curtain and the waterproof curtain, and the waterproof curtain is placed close to the cooling tower to reduce the contact between the moisture in the cooling tower and the air curtain, thereby reducing the possibility of the air curtain freezing and affecting the opening and closing.

[0021] 2. By setting up basic mounting components, it is easy to fix the bottom of the fixed bracket. At the same time, a receiving groove is set above the basic mounting components to accommodate the wind-resistant rod. When the wind curtain is lowered, the wind-resistant rod is located in the receiving groove, so that the receiving groove restricts the wind-resistant rod and improves the wind resistance of the wind curtain.

[0022] 3. When the air curtain falls into the receiving trough, external moisture or rain and snow may enter the receiving trough and cause the bottom of the air curtain to freeze with the receiving trough. By setting up an electric heating wire, the frozen parts of the air curtain and the receiving trough can be melted by heating the electric heating wire. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall implementation of an embodiment of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle;

[0026] Figure 4This is a structural schematic diagram of the basic mounting component according to an embodiment of the present utility model.

[0027] Reference numerals: 1. Fixed bracket; 21. Air curtain guide rail; 22. Air curtain drive; 221. Rotating shaft; 3. Canopy; 41. Air curtain adjustment; 411. Wind-resistant rod; 412. Connecting rod; 413. Rubber sealing strip; 42. Waterproof curtain; 421. Waterproof cloth block; 422. Counterweight crossbar; 423. Hook; 5. Foundation installation parts; 51. Receiving groove; 52. U-shaped groove; 53. Heating wire. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-3 This is an embodiment of a cooling tower herringbone column air inlet opening and closing device disclosed in this utility model. Please refer to [link / reference]. Figure 1 This includes a fixed bracket 1, which is fixedly installed on the ground outside the bottom of the cooling tower. Multiple fixed brackets 1 are installed in a circular array along the circumference of the cooling tower, and an air inlet is set between two adjacent fixed brackets 1. Please refer to [link / reference]. Figure 3 Air curtain guide rails 21 are installed on both sides of the air inlet. Please refer to [link / reference]. Figure 1 A canopy 3 is installed around the outside of the cooling tower, and the canopy 3 is fixedly installed on the outside of the fixed bracket 1. Please refer to [link / reference]. Figure 2 An air curtain drive 22 is installed above each air inlet, and the air curtain drive 22 is fixedly installed on the fixed bracket 1. An air regulating curtain 41 is installed at the output end of the air curtain drive 22. The air regulating curtain 41 is slidably installed on both sides of the air curtain guide rail 21. A waterproof curtain 42 is fixedly installed on the ceiling 3. A counterweight crossbar 422 is fixedly connected to the lower end of the waterproof curtain 42. The waterproof curtain 42 is located on the side of the air regulating curtain 41 closer to the cooling tower. Please refer to [link / reference]. Figure 3 Multiple hooks 423 are installed in an array at the lower end of the air conditioning curtain 41. The counterweight crossbar 422 is placed on the hooks 423. When the air conditioning curtain 41 is raised, the waterproof curtain 42 is stacked on the hooks 423.

[0030] Specifically, an air inlet is formed between two fixed supports 1. An air conditioning curtain 41 and a waterproof curtain 42 are installed at the air inlet. The air conditioning curtain 41 is connected to the air curtain drive 22. The waterproof curtain 42 is raised and lowered through the hook 423 of the air conditioning curtain 41 and the counterweight crossbar 422. Multiple fixed supports 1, air conditioning curtain 41 and waterproof curtain 42 surround the cooling tower. A canopy 3 is installed above the fixed supports 1 and between the fixed supports 1 and the cooling tower. The canopy 3, air conditioning curtain 41 and waterproof curtain 42 form protection for the area below the cooling tower.

[0031] In this way, the air curtain 41 and the waterproof curtain 42 form a double-layer protective structure, and the waterproof curtain 42 is placed close to the cooling tower, which reduces the contact between the moisture in the cooling tower and the air curtain 41, thereby reducing the possibility of the air curtain 41 freezing and affecting its opening and closing.

[0032] In some feasible configurations, the fixed support 1 is a steel frame structure, the air curtain guide rail 21 is a C-shaped rail, the air curtain drive 22 includes a rotating shaft 221 and a drive motor, the rotating shaft 221 is rotatably mounted on the upper end of the fixed support 1, the air curtain 41 is selected as a stacked curtain, the air curtain 41 includes multiple connecting rods 412, the connecting rods 412 are installed in a vertical array, the two ends of the connecting rods 412 are slidably installed in the air curtain guide rails 21 on both sides, the lowermost connecting rod 412 is fixedly connected to multiple shoulder straps, the end of the shoulder strap away from the connecting rod 412 is fixedly installed on the rotating shaft 221, when the rotating shaft 221 rotates, the shoulder strap drives the lowermost connecting rod 412 to rise, thereby opening the air curtain 41.

[0033] The waterproof curtain 42 is a protective curtain made of waterproof materials such as plastic sheeting, rainproof tarpaulin, or coated fabric. When moisture inside the cooling tower comes into contact with the waterproof curtain 42, it condenses into water droplets and slides off, reducing the possibility of freezing. Multiple L-shaped hooks 423 are fixedly connected to the connecting rod 412 at the bottom of the air conditioning curtain 41. A counterweight crossbar 422 is placed on the hooks 423. When the hooks 423 rise with the bottom of the air conditioning curtain 41, the waterproof curtain 42 rises accordingly. By setting the L-shaped hooks 423, when the waterproof curtain 42 rises and stacks, and freezes upon contact with external cold air, the air conditioning curtain 41 can be lowered without being affected by the waterproof curtain 42.

[0034] As one specific embodiment of the cooling tower A-frame column air inlet opening and closing device provided in the application, please refer to Figure 4 Multiple base mounting parts 5 are installed in a circular array on the outer side of the cooling tower. The fixed bracket 1 is installed on the base mounting parts 5. A receiving groove 51 is opened above the base mounting parts 5. A wind-resistant rod 411 is set at the lower end of the air curtain 41. When the air curtain 41 is lowered, the wind-resistant rod 411 is located in the receiving groove 51.

[0035] Generally speaking, by setting the base mounting member 5, it is convenient to fix the bottom of the fixed bracket 1. At the same time, a receiving groove 51 for receiving the wind resistance rod 411 is provided above the base mounting member 5. When the air regulating curtain 41 is lowered, the wind resistance rod 411 is located in the receiving groove 51, and the receiving groove 51 restricts the wind resistance rod 411, improving the wind resistance ability of the air regulating curtain 41.

[0036] In some feasible ways, the base mounting member 5 can be selected as a concrete structure or a metal mounting member, and the base mounting member 5 is fixedly installed below the ground.

[0037] Furthermore, a U-shaped groove member 52 is fixedly installed at the bottom of the receiving groove 51, and a heating wire 53 is installed between the U-shaped groove member 52 and the receiving groove 51.

[0038] Combined with the specific use scenario, when the air regulating curtain 41 drops into the receiving groove 51, external moisture or rain and snow entering the receiving groove 51 may cause the bottom of the air regulating curtain 41 to freeze with the receiving groove 51. By setting the heating wire 53, when freezing occurs, it is melted by heating with the heating wire 53 to thaw the frozen position of the air regulating curtain 41 and the receiving groove 51.

[0039] In some feasible ways, the U-shaped groove member 52 is set as a "ji" - shaped structure, the upper end of the receiving groove 51 is set as a corresponding stepped shape for placing the U-shaped groove member 52, and the heating wire 53 is installed at the bottom of the receiving groove 51. To avoid the influence of moisture, etc. on the heating wire 53, a sealed space is formed between the bottom of the U-shaped groove member 52 and the receiving groove 51.

[0040] In some feasible ways, the U-shaped groove member 52 is a metal bending part, and a rubber sealing strip 413 is provided at the lower end of the air regulating curtain 41 to form a better seal with the bottom of the U-shaped groove member 52 when the air regulating curtain 41 is lowered.

[0041] In some feasible ways, a magnet is provided at the bottom of the rubber sealing strip 413, and the connecting rod 412 at the lower end of the air regulating curtain 41 is an iron rod.

[0042] In some feasible ways, the heating wire 53 is controlled by a PLC controller. To facilitate the automatic air regulation of the air regulating curtain 41 part, the PLC controller is connected with a wind speed sensor, a wind direction sensor, and temperature sensors installed at different positions of the cooling tower, etc. By judging the wind speed, wind direction, ambient temperature, and the temperature at key positions of the cooling tower, the PLC controller drives the air curtain drive 22 to control the opening and closing of the air regulating curtain 41, and the air intake volume can be controlled by controlling the opening degree.

[0043] In some feasible methods, a tension sensor is installed at the connection position between the strap and the connecting rod 412 of the air curtain drive 22. The tension sensor is connected to the drive motor of the air curtain drive 22 and the heating wire 53 via a PLC controller. When the air curtain 41 is frozen, the tension sensor will show abnormal tension, and the PLC controller can control the air curtain drive 22 to stop running and start the heating wire 53 for heating.

[0044] As one specific embodiment of the cooling tower A-frame column air inlet opening and closing device provided in the application, please refer to Figure 2 The waterproof curtain 42 includes multiple waterproof cloth blocks 421 connected end to end in sequence, and a counterweight crossbar 422 is provided between adjacent waterproof cloth blocks 421.

[0045] It should be understood that the waterproof curtain 42 opens and closes with the opening and closing of the hook 423 of the air conditioning curtain 41, and when it is open, the waterproof curtain 42 is stacked on the hook 423. By setting the waterproof curtain 42 as multiple waterproof cloth blocks 421 and setting a counterweight crossbar 422 between each waterproof cloth block 421, it is easy for the waterproof curtain 42 to be stacked with the counterweight crossbar 422 as the folding position. The counterweight crossbar 422 restricts the waterproof curtain 42 and reduces the possibility of the waterproof curtain 42 falling off the hook 423 during the stacking process.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for opening and closing the air inlet of a cooling tower's herringbone column, characterized in that, include: A fixed bracket is fixedly installed on the ground outside the bottom of the cooling tower, and multiple fixed brackets are installed in an array along the circumference of the cooling tower. The air curtain guide rail has an air inlet between two adjacent fixed brackets, and the air curtain guide rail is provided on both sides of the air inlet. A canopy is installed around the outside of the cooling tower, and the outside of the canopy is fixedly installed on the fixed bracket; Air curtain drive, each air inlet is provided with an air curtain drive, and the air curtain drive is fixedly installed on the fixed bracket; An air conditioning curtain is installed at the output end of the air conditioning curtain drive, and the air conditioning curtain can be slidably installed on both sides of the air conditioning curtain guide rail; A waterproof curtain, the upper end of which is fixedly installed on the ceiling, and a counterweight crossbar is fixedly connected to the lower end of which is located on the side of the air conditioning curtain closest to the cooling tower; The hooks, and multiple hook arrays are installed at the lower end of the air conditioning curtain, the counterweight crossbar is placed on the hooks, and the waterproof curtain is stacked on the hooks when the air conditioning curtain is raised.

2. The cooling tower herringbone column air inlet opening and closing device according to claim 1, characterized in that: Multiple basic mounting components are installed in a circular array on the outer side of the cooling tower. The fixed bracket is installed on the basic mounting components. A receiving groove is opened above the basic mounting components. A wind-resistant rod is provided at the lower end of the air curtain. When the air curtain is lowered, the wind-resistant rod is located in the receiving groove.

3. The cooling tower herringbone column air inlet opening and closing device according to claim 2, characterized in that: A U-shaped groove is fixedly installed at the bottom of the receiving groove, and an electric heating wire is installed between the U-shaped groove and the receiving groove.

4. The cooling tower herringbone column air inlet opening and closing device according to claim 1, characterized in that: The air conditioning curtain is a stacked curtain.

5. The cooling tower herringbone column air inlet opening and closing device according to claim 1, characterized in that: The waterproof curtain comprises multiple waterproof fabric blocks connected end to end in sequence, and a counterweight crossbar is provided between adjacent waterproof fabric blocks.

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