Shutter of indirect cooling tower

Abstract

The utility model belongs to the technical field of shutters, and particularly relates to an indirect cooling tower shutter which comprises a fixing frame, at least two blade sets and a driving assembly, each blade set comprises blades and a connecting rod mechanism, the number of the blades is at least two, each blade is rotationally connected with the fixing frame through a connecting shaft, and the driving assembly is arranged on the fixing frame. The blades are connected through a connecting rod mechanism; the driving assembly comprises a moving rod and a driving element, the moving rod is in sliding connection with the fixing frame, the driving element is connected with the moving rod, and the moving rod is driven by the driving element to slide up and down; any connecting shaft in each blade group is fixedly connected with a driving gear, a driving rack meshed with each driving gear is fixed on the moving rod, and the position of the driving rack relative to the moving rod is adjustable. And when the moving rod moves, the driving rack sections are meshed with the driving gear, so that different opening and closing angles of different groups of blades are realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of shutter, concretely relates to an indirect air cooling tower shutter. BACKGROUND

[0002] With the continuous development of industrial technology, indirect air cooling systems are increasingly widely used in fields such as thermal power plants. As one of the core equipment of the system, the main function of the indirect air cooling tower is to reduce the temperature of the circulating water through heat exchange between the radiator and the air, thereby ensuring the normal operation of the system. However, there are still some problems in the design and operation of the existing indirect air cooling tower, especially in terms of structural complexity and system reliability.

[0003] The existing indirect air cooling tower generally includes a tower body, cooling fan segments, and a shutter for controlling the ventilation of the radiator. In order to achieve independent control of different parts of the radiator, the existing technology generally adopts independent transmission equipment on the upper and lower window bodies of the shutter. For example, patent application No. 201410252992.7 discloses an indirect air cooling tower.

[0004] Although the above design can achieve segmented control of the radiator to some extent, it also has significant defects. First, the setting of two independent transmission devices significantly increases the complexity of the system, resulting in a significant increase in the difficulty of installation, debugging, and maintenance of the equipment. Second, the complex transmission equipment structure not only increases the failure rate of the equipment, but also may lead to an increase in operating costs. In addition, the coordinated control between multiple transmission devices requires complex logic and connection methods, which further increases the risk of system failure, reduces the reliability and operating efficiency of the system. UTILITY MODEL CONTENTS

[0005] In view of the above technical problems, the utility model provides an indirect air cooling tower shutter, which can realize the opening and closing control of different groups of blades through only one drive assembly, and realize different opening angles of different groups of blades through the adjustable position of the drive rack.

[0006] In order to solve the above technical problems, the utility model adopts the technical scheme of:

[0007] An indirect air cooling tower shutter, comprising a fixed frame, a blade group, and a drive assembly, the blade group is provided with at least two groups, each blade group comprises blades and a connecting rod mechanism, the blades are provided with at least two, each blade is rotatably connected with the fixed frame through a connecting shaft, and each blade is connected through the connecting rod mechanism;

[0008] The drive assembly comprises a moving rod and a drive element, the moving rod is slidably connected with the fixed frame, the drive element is connected with the moving rod, and the moving rod is driven to slide up and down by the drive element;

[0009] Any connecting shaft in each blade group is fixedly connected with a driving gear, and a driving rack engaged with each driving gear is fixed on the moving rod, and the position of the driving rack relative to the moving rod is adjustable.

[0010] The driving rack is fixed with a connecting slot, and the driving rack is connected with the moving rod through bolts, and the moving rod is provided with a plurality of bolt connection holes.

[0011] The bolt is a hexagonal bolt.

[0012] The driving element is an electric telescopic cylinder, and the two ends of the electric telescopic cylinder are fixedly connected with the moving rod and the fixed frame.

[0013] The connecting rod mechanism includes a connecting plate and a connecting rod, and each blade is fixedly connected with the connecting plate, and the end of each connecting plate is hinged with the connecting rod.

[0014] Each blade group further comprises a reset assembly, and the reset of the blade is realized through the reset assembly.

[0015] The reset assembly adopts a tension spring, and the two ends of the tension spring are connected with the connecting rod mechanism and the fixed frame.

[0016] The two ends of each blade are provided with a connecting groove.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] The moving rod is driven to slide up and down by the driving assembly, the driving rack with adjustable position is arranged on the moving rod, the position of the driving rack is changed, the driving rack is engaged with the driving gear in sections when the moving rod moves, and different opening angles of different groups of blades are realized.

[0019] The connecting groove is arranged, so that the blades can be sequentially connected after being closed, and the air leakage gap is reduced. DRAWINGS

[0020] Figure 1 is a structural schematic view of one direction of the utility model;

[0021] Figure 2 is Figure 1 the enlarged view of A in figure 1;

[0022] Figure 3 is a structural schematic view of another direction of the utility model;

[0023] Figure 4 is Figure 2 the enlarged view of B in figure 2;

[0024] Figure 5 is a front view of the utility model;

[0025] Figure 6 is a sectional view of the utility model;

[0026] Figure 7 is Figure 6 is a local enlarged view of C in the middle;

[0027] Figure 8 is Figure 6 is the front view of the structure shown;

[0028] Wherein: 1 is fixed frame, 2 is blade group, 20 is blade, 200 is connecting groove, 21 is connecting rod mechanism, 210 is connecting plate, 211 is connecting rod, 22 is connecting shaft, 3 is drive assembly, 30 is moving rod, 31 is drive element, 32 is drive gear, 33 is drive rack, 330 is connecting clamping groove, 34 is bolt, 340 is bolt hole, 4 is tension spring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be described clearly and completely below, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0030] As Figures 1-8 shown, a kind of cold tower louvre, including fixed frame 1, blade group 2 and drive assembly 3, blade group 2 is at least provided with two groups.Each blade group 2 includes blade 20 and connecting rod mechanism 21, blade 20 is at least provided with two pieces, each blade 20 is rotatably connected with fixed frame 1 by connecting shaft 22, each blade 20 is connected by connecting rod mechanism 21, any blade 20 in each blade group 2 rotates, will drive the rest blade 20 also corresponding rotation by connecting rod mechanism 21.

[0031] Drive assembly 3 includes moving rod 30 and drive element 31, moving rod 30 is slidably connected with fixed frame 1, drive element 31 is connected with moving rod 30, and moving rod 30 is driven to slide up and down by drive element 31;

[0032] Driving gear 32 is fixedly connected on any connecting shaft 22 in each blade group 2, and drive rack 33 is fixed on moving rod 30 and engaged with each driving gear 32, and the position of drive rack 33 relative to moving rod 30 is adjustable.

[0033] Take three groups of blade groups 2 as an example, that is, correspond to three driving racks 33, by adjusting the position of each driving rack 33, so that during the movement of the moving rod 30, the lowermost driving rack 33 is first engaged with the corresponding driving gear 32, then the middle driving rack 33 is engaged with the corresponding driving gear 32, and finally the uppermost driving rack 33 is engaged with the corresponding driving gear 32. In this way, the opening and closing angle of the lowermost blade group 2 (blade 20) > middle blade group 2 > uppermost blade group 2.

[0034] That is, by adjusting the position of each driving rack 33, the engagement sequence with the corresponding driving gear 32 is changed, so that different rotation angles of each group of blades 20 are realized.

[0035] Further, the driving rack 33 is fixed with a connecting slot 330; the driving rack 33 is connected with the moving rod 30 through a bolt 34, and the moving rod 30 is provided with a plurality of bolt connection holes 340. By connecting with different positions of the bolt connection hole 340, the position of the driving rack 33 can be adjusted.

[0036] Further, the above-mentioned bolt 34 preferably adopts an internal hexagonal bolt 34.

[0037] Further, the driving element 31 is an electric telescopic cylinder, and the two ends of the electric telescopic cylinder are fixedly connected with the moving rod 30 and the fixed frame 1 respectively. By the extension and retraction of the piston rod of the electric telescopic cylinder, the up and down movement of the moving rod 30 is realized.

[0038] Further, the connecting rod mechanism 21 includes a connecting plate 210 and a connecting rod 211, each blade 20 is fixedly connected with the connecting plate 210, and the end of each connecting plate 210 is hinged with the connecting rod 211. Through the connecting rod mechanism 21, it can be ensured that when any blade 20 in each blade group 2 rotates, the remaining blades 20 will also rotate accordingly.

[0039] Further, each blade group 2 further includes a reset component, and the reset of the blade 20 is realized through the reset component, that is, the blade 20 is in a closed state.

[0040] Further, the reset component adopts a tension spring 4, and the two ends of the tension spring 4 are respectively connected with the connecting rod mechanism 21 and the fixed frame 1; specifically: the two ends of the tension spring 4 are hinged or fixedly connected with the connecting rod 211 and the fixed frame 1, and the hinged mode is preferred.

[0041] When the moving rod 30 drives the driving rack 33 to move to make the blade 20 rotate to open, the tension spring 4 will be stretched to generate elastic potential energy. When the moving rod 30 moves reversely to make each blade 20 close, the tension spring 4 releases the elastic potential energy.

[0042] Further, connecting grooves 200 are arranged at both ends of each blade 20, and the connecting grooves 200 of the blades 20 can be sequentially connected when the blades 20 of the shutter are in a closed state, thereby reducing the air leakage gap.

[0043] The preferred embodiments of the present application are described above in detail, but the present application is not limited to the above embodiments.

Claims

1. An indirect air cooled tower shutter characterised in that: The utility model relates to a kind of leafing machine, including fixed frame (1), blade group (2) and drive assembly (3), the blade group (2) is equipped with at least two groups, each blade group (2) includes blade (20) and connecting rod mechanism (21), the blade (20) is equipped with at least two, each blade (20) is rotatably connected with fixed frame (1) by connecting shaft (22), and each blade (20) is connected by connecting rod mechanism (21) between; The drive assembly (3) includes moving rod (30) and drive element (31), the moving rod (30) is slidably connected with fixed frame (1), drive element (31) is connected with moving rod (30), and moving rod (30) is driven to slide up and down by drive element (31); Any connecting shaft (22) in each blade group (2) is fixedly connected with drive gear (32), and moving rod (30) is fixed with drive rack (33) engaged with each drive gear (32), and the position of drive rack (33) relative to moving rod (30) is adjustable.

2. A baffle for an indirect cooling tower according to claim 1, wherein: The drive rack (33) is fixed with connecting clamping groove (330);Drive drive rack (33) is connected with moving rod (30) by bolt (34), and moving rod (30) is equipped with a plurality of bolt connection holes (340).

3. A baffle for an indirect cooling tower according to claim 2, wherein: The bolt (34) adopts internal hexagonal bolt (34).

4. A baffle for an indirect air cooled tower according to claim 1, wherein: The drive element (31) is electric telescopic cylinder, and two ends of electric telescopic cylinder are fixedly connected with moving rod (30) and fixed frame (1) respectively.

5. A baffle for an indirect air cooled tower as defined in claim 1, wherein: The connecting rod mechanism (21) includes connecting plate (210) and connecting rod (211), each blade (20) is fixedly connected with connecting plate (210), and the end of each connecting plate (210) is hingedly connected with connecting rod (211).

6. A baffle for an indirect air cooled tower according to claim 1, wherein: Each blade group (2) also includes reset assembly, and the reset of blade (20) is realized by reset assembly.

7. A louver according to claim 6, wherein: The reset assembly adopts tension spring (4), and two ends of tension spring (4) are connected with connecting rod mechanism (21) and fixed frame (1) respectively.

8. A baffle for an indirect air cooled tower according to claim 1, wherein: Both ends of each blade (20) are equipped with connecting groove (200).

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