Anti-freezing device with air guide and control door

Abstract

The utility model provides an anti-freezing device with an air guide and control door, which belongs to the technical field of cooling tower buildings and comprises a shutter unit and the air guide and control door, the shutter unit comprises a plurality of groups of left shutters, a plurality of groups of right shutters and an upper layer of shutters, and the left shutters and the right shutters jointly define an annular structure; the air guide and control door is arranged below the upper-layer shutter and consists of a plurality of groups of unit doors, and each unit door consists of a plurality of groups of door plates; the upper-layer louver comprises a louver frame, fan blades and a control assembly. Opening and closing of the upper-layer shutter are controlled through the control assembly, the upper-layer shutter is used for ventilation and cooling, the air guiding and controlling door is used for equipment maintenance and access of personnel, and the upper-layer shutter and the air guiding and controlling door are matched to achieve opening of different degrees according to the current environment so as to control the direction and flow of inlet and outlet air, and the flow guiding and controlling effect is achieved. And the cooling performance of the cooling tower can be further improved. The unit door can also be a shutter type door leaf, negative pressure is released by controlling the opening degree of shutters, and the use safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling tower construction, and particularly relates to an antifreeze device with an air guide and control damper. Background Art

[0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and discharge it into the atmosphere to lower the water temperature. It uses the flow of water and air to exchange heat and generate steam. The steam evaporates and carries away heat, achieving the goal of cooling the water through evaporative heat dissipation, convection heat transfer, and radiation heat transfer.

[0003] The cooling towers disclosed in the prior art include a cooling tower with an antifreeze device capable of eliminating the longitudinal vortex at the upper edge of the air inlet in the tower and an authorization announcement number CN221223441U, and a naturally ventilated wet cooling tower with integrated vertical antifreeze louvers with an authorization announcement number CN218627832U. Both towers are provided with louvers in a circular array under the tower body. Although this design can effectively ensure the cooling function, it is very inconvenient to inspect the inside of the louvers because there are no corresponding entrance and exit doors. Some antifreeze towers in the prior art also have air guide control dampers installed between the louvers, but the overall height and width of these air guide control dampers are too large, which affects the performance of the cooling tower to a certain extent. Summary of the Invention

[0004] In order to solve the above problems in the prior art, an antifreeze device with an air guide and control damper is provided.

[0005] The technical solution adopted by the utility model to solve its technical problems is: the utility model proposes an antifreeze device with an air guide control door, including a shutter unit and an air guide control door, the shutter unit includes a left shutter, a right shutter and an upper shutter, and the left shutter and the right shutter are each provided with several groups, which together form a ring structure; the air guide control door is placed below the upper shutter; it also includes columns, the columns are placed on both sides of the air guide control door and are vertically arranged square steel pipes for fixing the air guide control door and the upper shutter; the upper shutter includes a shutter frame, fan blades and a control component; the control component is used to control the opening and closing of the upper shutter.

[0006] Preferably, the shutter frame is composed of a horizontal square steel tube and a vertical square steel tube, and a connecting hole is provided on the inner side of the vertical square steel tube for connecting and fixing the fan blades.

[0007] Preferably, the fan blades are arranged in several groups from top to bottom and are connected and fixed to the shutter frame via rotating shafts provided at both ends.

[0008] Preferably, the control assembly includes an ear plate connected to the rotating shaft, and the ear plate is commonly connected to a transmission rod.

[0009] Preferably, the upper shutters are provided with transmission rods on the left and right sides respectively for connecting all the blades, and a long connecting rod is provided at the lower end of the transmission rod downward along the column.

[0010] Preferably, a connecting bolt is provided at the lower end of the long connecting rod, which is connected to the opening positioning hole or to the transmission rod of the shutter unit on its left or right side.

[0011] Preferably, the air guide and control door is composed of several groups of detachable unit doors in a horizontal array, which can be opened and closed.

[0012] Preferably, the unit door comprises at least two sets of hinged door panels, which are foldable with respect to each other.

[0013] Preferably, the unit door can also be a louver-type door leaf, which includes a door leaf frame and M rotatable and movable louvers, M>5 and M is an integer, and is fixed to the left or right column through a hinge connection.

[0014] Preferably, the louver type door leaf also includes a synchronization rod and a self-locking part; the synchronization rod is used to connect the M groups of louvers of the louver type door leaf; the self-locking part is used to fix the opening of the M groups of louvers of the louver type door leaf, and the opening range is fully open to fully closed; the self-locking part can be operated on both the inside and outside of the door leaf, and the operation is synchronized; by controlling the opening of the M groups of louvers of the louver type door leaf, the negative pressure generated by the suction force of the cooling tower itself is released, and the difficulty of opening and closing the air guide control damper is optimized. At the same time, several groups of louvers can be set to different openings according to anti-freezing requirements.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In the utility model, an air guide control door is provided between the two louver units, and an upper louver is provided above the air guide control door. The opening and closing of the upper louver is controlled by a control component. The upper louver is used for ventilation and cooling, and the lower air guide control door is used for the entry and exit of maintenance equipment and personnel. The two cooperate with each other to achieve different degrees of opening according to the current environment to control the direction and flow of the inlet and outlet air, thereby achieving the effect of guiding and controlling the wind, and can further improve the cooling performance of the cooling tower.

[0017] The control components in the utility model are respectively located on the left and right sides of the upper shutters. The angles of the fan blades in several groups of upper shutters are centrally controlled by pulling the transmission rod. The overall operation of this design is quick and convenient. The control components are located on both sides of the air guide and air control door to avoid obstruction to people and equipment entering and exiting.

[0018] The unit door in the present invention can also be a louver-type door leaf, which is connected and fixed to the door leaf louver switch by a synchronization rod and a self-locking part. By controlling the opening of several groups of louvers of the louver-type door leaf, the negative pressure generated by the cooling tower's own suction force is released, the difficulty of opening and closing the air guide control damper is optimized, and its safety is improved. At the same time, several groups of louvers can be set to different opening degrees according to anti-freezing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of this device.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the upper shutter and control components.

[0021] Figure 3 It is a structural diagram of the device with the air guide and air control door opened.

[0022] Figure 4 It is a structural diagram of a unit door that is a louver-type door leaf.

[0023] Explanation of the accompanying reference numerals: 1. Shutter unit; 2. Upright column; 3. Upper shutter; 31. Shutter frame; 32. Blade; 4. Air guide and air control door; 5. Door sill; 6. Ear plate; 7. Transmission rod; 8. Long connecting rod; 9. Crossbeam; 10. Louver-type door leaf; 101. Door leaf frame; 102. Shutter. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component. When a component is considered to be "disposed on" another component, it may be directly disposed on the other component or there may be a centrally located component.

[0025] In addition, terms such as "long", "short", "inside", and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only used to facilitate the description of the present invention, and do not indicate or imply that the components or elements referred to must have this specific orientation or operate in a specific orientation structure. They should not be understood as limitations of the present invention.

[0026] The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0027] like Figure 1-4As shown, this embodiment proposes an antifreeze device with an air guide control damper, which includes a shutter unit 1 and an air guide control damper 4. The shutter unit 1 includes a left shutter, a right shutter and an upper shutter 3. The left shutter and the right shutter are each provided with several groups, which together form a ring structure; the air guide control damper 4 is placed below the upper shutter 3, and also includes a column 2, which is a vertically arranged square steel pipe placed on both sides of the air guide control damper 4 to fix the shutter unit 1, the air guide control damper 4 and the upper shutter 3; the shutter unit 1 and / or the upper shutter 3 include a shutter frame 31, fan blades 32 and a control component, and the control component is used to control the opening and closing of the shutter unit 1 and / or the upper shutter 3.

[0028] In the prior art, there are two types of cooling towers, one without air guide dampers 4 and the other with air guide dampers 4, depending on the local environment and design. Cooling towers without air guide dampers 4 are inconvenient to maintain internally, while towers with air guide dampers 4 are generally too tall and wide, and their upper ends are rarely used due to the position of the herringbone columns, which will have a certain impact on the cooling performance of the cooling tower. In the above design, upper louvers 3 are provided above the air guide dampers 4. The upper louvers 3 and the air guide dampers 4 form an integral whole, and the opening and closing angles of the upper louvers 3 are controlled by a control component. The upper portion is used for ventilation and cooling, while the lower portion of the air guide dampers 4 is used for maintenance equipment and the entry and exit of personnel. The control component further controls the opening and closing angles of the upper louvers 3 to achieve the function of guiding air flow and controlling wind. Combined with the different opening degrees of the surrounding louver units 1, the cooling performance of the cooling tower is further improved. Under antifreeze conditions, the upper louvers 3 can be fully closed according to antifreeze requirements.

[0029] In some embodiments, the wind guide control door 4 also includes a crossbeam 9, which is located between the upper louvers 3 and the wind guide control door 4, and the columns 2 are located on both sides of the wind guide control door 4; the crossbeam 9 and the columns 2 further increase the stability of the upper louvers 3 and the wind guide control door 4, and can also serve as a skeleton to withstand a certain degree of collision.

[0030] In some embodiments, the shutter frame 31 is composed of a horizontal square steel tube and a vertical square steel tube, and a connecting hole is set on the inner side of the vertical square steel tube for fixing the position of the fan blades 32; wherein, the fan blades 32 are arranged in several groups from top to bottom, and are connected and fixed to the shutter frame 31 through the rotating shafts set at both ends.

[0031] Furthermore, the control component includes an ear plate 6 connected to the rotating shaft, and the ear plate 6 is commonly connected to a transmission rod 7. The angles of all the fan blades 32 are centrally adjusted by the transmission rod 7, so that the opening and closing or the opening and closing angles of the fan blades 32 can be quickly adjusted.

[0032] Furthermore, the upper louver 3 is provided with transmission rods 7 on both sides to connect all the blades 32. At the lower end of the transmission rods 7, a long connecting rod 8 is provided downward along the column 2. The lower end of the long connecting rod 8 is provided with a connecting bolt, which connects to the opening positioning hole or to the transmission rod 7 of the louver unit 1 on the left or right side. By moving the long connecting rod 8 up and down, the blades 32 of the upper louver 3 can be opened or closed, or the opening and closing angle can be adjusted to achieve the optimal ventilation state according to the current environment.

[0033] In some embodiments, the air guide and control damper 4 is composed of several groups of detachable unit doors arranged in a horizontal array, and the unit doors can be opened and closed. Specifically, there are two groups of unit doors, and the left and right sides of the two unit doors are respectively hinged to the pillars 2. The unit doors include at least two groups of hinged door panels, and the door panels can be folded together. When large maintenance equipment needs to enter the interior of the shutter units 1 arranged in a circular array for operation, the door panels are pulled to fold them relative to the shutter units 1, so that the interior is opened to facilitate the entry and exit of maintenance equipment. The unit doors are provided with handles. Under normal conditions, the unit doors are opened by the handles to enable staff to enter and exit.

[0034] Furthermore, the opening and closing angle of the unit door can be adjusted to 0°~150°. Under non-antifreeze conditions, the corresponding opening degree can be selected according to the actual environmental wind direction, for example, at different opening and closing angles such as 30°, 60°, 90°, 120°, etc., to achieve the effect of guiding and controlling the wind, and cooperate with the different opening degrees of the surrounding shutter units 1 to further improve the cooling performance of the cooling tower; under antifreeze conditions, the wind guide control door 4 and the upper shutters 3 can be fully closed according to antifreeze requirements.

[0035] In some embodiments, a detachable threshold 5 is provided at the bottom of the air guide and control door 4 , and when maintenance equipment enters or exits, the threshold 5 can be removed to facilitate the entry or exit of the maintenance equipment.

[0036] In some embodiments, pads are arranged at intervals below several groups of louver units 1 in a circular array. During the operation of the cooling tower, water droplets and impurities will be discharged with the air. The louver units 1 are raised by the pads to reduce the possibility of bottom blockage. At the same time, the raised louver units 1 can improve the airflow distribution inside the cooling tower, avoid the formation of dead corners and vortices, and improve cooling efficiency.

[0037] In some embodiments, the unit door is in the form of a louver-type door leaf 10, which is composed of a door leaf frame 101 and several groups of louvers 102. It also includes a synchronization rod and a self-locking part for connecting or fixing the several groups of louvers 102 of the louver-type door leaf 10. By controlling the opening of the several groups of louvers 102 of the louver-type door leaf 10, the negative pressure generated by the suction force of the cooling tower itself is released, and the difficulty of opening and closing the air guide control damper 4 is optimized. At the same time, the opening degree of the louvers 102 can be set according to anti-freezing requirements.

[0038] Furthermore, under antifreeze conditions, the door shutters 102 are closed and the self-locking parts are fixed. When it is necessary to enter for maintenance, the shutters 102 are first opened, and the opening is temporarily adjusted to fully open and fixed to eliminate the negative pressure caused by the tower's own suction. After opening the door to enter, the shutters 102 are closed and fixed on the inside. When the maintenance is completed and you come out, similarly, the shutters 102 are first opened and fixed, and then the door is opened. After you come out, the shutters 102 are fully closed and fixed again; under non-antifreeze conditions, the door shutters 102 are in a fully open and fixed state, which does not affect the normal air intake of the cooling tower. When maintenance is required, you can directly open the door and pass through.

[0039] Working principle of this device:

[0040] In the anti-freezing state, the air guide and control dampers 4, the shutter units 1 in a circular array, and the upper shutters 3 are in a closed state.

[0041] In the non-antifreeze state, relevant personnel can choose to pull down the long connecting rod 8 to adjust the ventilation angle of the fan blades 32 according to the actual environmental wind direction, and keep the long connecting rod 8 in the current state after adjusting to the appropriate angle; further, the opening and closing angle of the wind guide control door 4 can also be adjusted, and the shutter unit 1 and the upper shutter 3 can be opened to different degrees to achieve the effect of guiding and controlling the wind, thereby further improving the cooling performance of the cooling tower.

[0042] When maintenance equipment needs to be entered or exited or personnel need to enter or exit, open the unit door to allow maintenance equipment or personnel to enter or exit.

[0043] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An antifreeze device with an air guide and air control door, characterized in that: It includes a shutter unit and an air guide and control door. The shutter unit includes a left shutter, a right shutter and an upper shutter. The left shutter and the right shutter are each provided with several groups, which together form a ring structure; the air guide and control door is placed below the upper shutter; it also includes columns, which are vertically arranged square steel pipes placed on both sides of the air guide and control door for fixing the air guide and control door and the upper shutter; the upper shutter includes a shutter frame, fan blades and a control component; the control component is used to control the opening and closing of the upper shutter.

2. The antifreeze device with air guide and air control door according to claim 1, characterized in that: The shutter frame is composed of a horizontal square steel pipe and a vertical square steel pipe, and a connecting hole is provided on the inner side of the vertical square steel pipe for connecting and fixing the fan blades.

3. The antifreeze device with air guide and air control door according to claim 1, characterized in that: The fan blades are arranged in several groups from top to bottom and are connected and fixed to the shutter frame through rotating shafts provided at both ends.

4. The antifreeze device with air guide and air control door according to claim 3, characterized in that: The control assembly includes an ear plate connected to the rotating shaft, and the ear plate is commonly connected to a transmission rod.

5. The antifreeze device with air guide and air control door according to claim 4, characterized in that: The upper shutters are respectively provided with transmission rods on the left and right sides for connecting all the fan blades, and a long connecting rod is provided at the lower end of the transmission rod along the column downward.

6. The antifreeze device with air guide and air control door according to claim 5, characterized in that: A connecting bolt is provided at the lower end of the long connecting rod and is connected to the opening positioning hole or the transmission rod of the shutter unit on its left or right side.

7. The antifreeze device with air guide and air control door according to claim 1, characterized in that: The air guide and control door is composed of a plurality of groups of detachable unit doors in a transverse array, which can be opened and closed.

8. The antifreeze device with air guide and air control door according to claim 7, characterized in that: The unit door comprises at least two groups of hinged door panels, which are foldable.

9. The antifreeze device with air guide and air control door according to claim 8, characterized in that: Furthermore, the unit door can also be a louver-type door leaf, which includes a door leaf frame and M groups of rotatable and movable louvers, M>5 and M is an integer, and is fixed to the left or right column through a hinge connection.

10. The antifreeze device with air guide and air control door according to claim 9, characterized in that: The louver-type door leaf also includes a synchronization rod and a self-locking part; the synchronization rod is used to connect the M groups of louvers of the louver-type door leaf; the self-locking part is used to fix the opening of the M groups of louvers of the louver-type door leaf, and the opening range is from fully open to fully closed; the self-locking part can be operated on both the inside and outside of the door leaf, and the operation is synchronized; by controlling the opening of the M groups of louvers of the louver-type door leaf, the negative pressure generated by the cooling tower's own suction force is released, and the difficulty of opening and closing the air guide control door is optimized. At the same time, several groups of louvers can be set to different openings according to anti-freezing requirements.

Images