Bulk icing prevention mechanism for cooling tower

Abstract

The utility model relates to the technical field of cooling towers, in particular to a chunk icing prevention mechanism for a cooling tower, which comprises a plurality of sectioning assemblies, an arc cover plate and an anti-sticking layer, the sectioning assemblies are uniformly arranged on the inner wall of the top of the cooling tower along the circumferential direction, the top end of the arc cover plate is arranged on the outer wall of the bottom of the cooling tower, and the anti-sticking layer is arranged on the arc cover plate. The bottom end of the anti-sticking layer is arranged on the front eave of a wind-proof and anti-freezing device at the bottom of the cooling tower; the device is simple in structural design, the ice columns inside and outside the tower are prevented from being too large in size, the ice columns inside the tower are automatically segmented, the falling impact force of the ice columns outside the tower is buffered, and the arc-shaped cover plate is convenient to assemble and disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to an anti-large-piece icing mechanism for a cooling tower. Background Art

[0002] In cold and severe cold regions in the north, the average winter temperature is below 0°C, and the icing phenomenon of cooling towers is very serious. Currently, the commonly used anti-freezing measures are to add wind-proof and anti-freezing devices. The wind-proof and anti-freezing devices mainly include an anti-freezing roller shutter 1, a roller shutter box 2, a main beam 3, a capping cover plate 4, and a wind pressure-resistant grid 5. The capping cover plate 4 is laid on the main beam 3, as Figure 1 and Figure 2 shown.

[0003] Although the wind-proof and anti-freezing devices play a certain anti-freezing role, there is still an ice hanging phenomenon at the top of the cooling tower. When the ice column reaches a certain weight, it will fall automatically. The falling of the ice column inside the tower will impact internal components such as the water collector, thus affecting the performance and service life of the internal components; the falling of the ice column outside the tower will impact the capping cover plate 4 at the top of the wind-proof and anti-freezing device. Since the capping cover plate 4 is inclined and does not have a function of buffering and discharging force, it is easy to cause damage to the capping cover plate 4 over time, and in serious cases, it may damage the wind-proof and anti-freezing device. In addition, the existing capping cover plate 4 is mainly connected by bolts and nuts or welded, and the installation and disassembly steps are cumbersome, and it is easy to lose parts. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is: to overcome the deficiencies in the prior art, and provide an anti-large-piece icing mechanism for a cooling tower with a simple structural design, which can prevent the ice columns inside and outside the tower from being too large, automatically segment the ice columns inside the tower, buffer the falling impact force of the ice columns outside the tower, and the arc-shaped cover plate is convenient to install and disassemble.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an anti-large-piece icing mechanism for a cooling tower, including a segmentation component, an arc-shaped cover plate, and an anti-adhesion layer. The segmentation component is in several groups and is evenly installed on the inner wall of the top of the cooling tower along the circumferential direction. The top end of the arc-shaped cover plate is installed on the outer wall of the bottom of the cooling tower, and its bottom end is installed on the front edge of the wind-proof and anti-freezing device at the bottom of the cooling tower. The anti-adhesion layer is arranged on the outer wall of the top of the cooling tower.

[0006] Furthermore, the segmentation component includes an installation bracket, a transmission wheel, and a transmission belt. The installation bracket is installed on the inner wall of the top of the cooling tower. The installation bracket is inclined. There are two transmission wheels, which are respectively rotatably installed at both ends of the installation bracket. The transmission belt is sleeved on the two transmission wheels in a transmission manner.

[0007] Furthermore, the anti-adhesion layer is also arranged on the inner wall of the top of the cooling tower.

[0008] Further, it further includes a reinforcing rod arranged obliquely. The top end of the reinforcing rod is connected to the middle part of the arc-shaped cover plate, and the other end thereof is connected to the outer wall of the bottom of the cooling tower.

[0009] Further, mounting beams are respectively installed on the outer wall of the bottom of the cooling tower and the front eaves of the wind and frost protection device. The top end and the bottom end of the arc-shaped cover plate are respectively connected to the mounting beams through clamping components.

[0010] Further, the clamping component includes a truncated cone, a screw rod, a pin, a stop block and a spring. The truncated cone is arranged in a cavity provided in the mounting beam. The screw rod is threadedly inserted into a threaded hole opened at the top of the mounting beam, and the bottom end thereof is connected to the top end of the truncated cone. The pin is slidably arranged in a pin hole opened at the left part of the mounting beam and corresponds to a slot opened at the end of the arc-shaped cover plate. The end of the pin away from the arc-shaped cover plate extends into the cavity and contacts the circumferential surface of the truncated cone. The end face of the pin away from the arc-shaped cover plate is inclined. There are two stop blocks, symmetrically installed in the middle of the pin. The stop blocks are slidably arranged in a groove opened at the left part of the mounting beam. The spring is arranged in the groove. The left end of the spring abuts against the left side wall of the groove, and the right end thereof abuts against the stop block.

[0011] Further, the end face of the pin close to the arc-shaped cover plate is spherical.

[0012] The beneficial effects of the present utility model are as follows:

[0013] (1) Through the arrangement of the segmented component, on the one hand, the present utility model increases the difficulty of forming large ice columns, avoids the appearance of ice columns with too large volume inside the tower, and on the other hand, automatically segments the formed ice columns so that small segments (corresponding to smaller weights) fall, thereby reducing the influence of the ice columns inside the tower on the performance and service life of internal components; by setting an anti-sticking layer on the outer wall of the tower top, it avoids the appearance of ice hanging on the outer wall of the tower top, also increases the difficulty of forming large ice columns, thus avoiding the appearance of ice columns with too large volume outside the tower. Combined with the arrangement of the arc-shaped cover plate, it buffers and dissipates the falling impact force of the ice columns outside the tower, thereby reducing the influence of the ice columns outside the tower on the wind and frost protection device.

[0014] (2) By also setting an anti-sticking layer on the inner wall of the tower top, the present utility model avoids the appearance of ice hanging on the inner wall of the tower top, thereby further avoiding the appearance of ice columns with too large volume inside the tower.

[0015] (3) Through the arrangement of the clamping component, the present utility model makes the installation and removal of the arc-shaped cover plate very convenient and is not easy to lose components. Description of the Drawings

[0016] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0017] Figure 1It is a layout drawing of the wind and frost prevention device in the prior art;

[0018] Figure 2 It is a side view of the wind and frost prevention device in the prior art;

[0019] Figure 3 Schematic diagram of the segmented component in the present utility model;

[0020] Figure 4 Schematic diagram of the arc-shaped cover plate in the present utility model;

[0021] Figure 5 Schematic diagram of the clamping component in the present utility model;

[0022] Figure 6 Vertical sectional view of the installation beam in the present utility model;

[0023] Figure 7 Horizontal sectional view of the installation beam in the present utility model.

[0024] In the figure: 100, segmented component; 110, installation bracket; 120, conveyor wheel; 130, conveyor belt; 200, arc-shaped cover plate; 210, slot; 300, reinforcing rod; 400, installation beam; 410, cavity; 420, threaded hole; 430, pin hole; 440, groove; 500, clamping component; 510, frustum; 520, screw; 530, plug; 540, stop block; 550, spring; 600, guardrail. Specific embodiments

[0025] Now, the present utility model will be further described with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0026] Embodiment 1

[0027] As Figure 3 and Figure 4As shown in the figure, an anti-large-piece icing mechanism for a cooling tower includes a segmented component 100, an arc-shaped cover plate 200, and an anti-sticking layer. The segmented component 100 is provided in several groups and is uniformly installed on the inner wall of the top of the cooling tower along the circumferential direction. The top end of the arc-shaped cover plate 200 is installed on the outer wall of the bottom of the cooling tower, and its bottom end is installed on the front edge of the windproof and anti-freezing device at the bottom of the cooling tower. The anti-sticking layer is provided on the outer wall of the top of the cooling tower. Through the setting of the segmented component 100, on the one hand, it increases the difficulty of forming large ice columns, avoiding the appearance of ice columns with too large a volume inside the tower. On the other hand, it automatically segments the formed ice columns, making the small segments (corresponding to a smaller weight) fall, thereby reducing the impact of the ice columns inside the tower on the performance and service life of internal components. By setting the anti-sticking layer on the outer wall of the tower top, it avoids the appearance of ice hanging on the outer wall of the tower top, also increasing the difficulty of forming large ice columns, thus avoiding the appearance of ice columns with too large a volume outside the tower. Combining with the setting of the arc-shaped cover plate 200, it buffers and relieves the downward impact force of the ice columns outside the tower, thereby reducing the impact of the ice columns outside the tower on the windproof and anti-freezing device. Specifically, the top end of the arc-shaped cover plate 200 is installed on the upper outer wall of the air inlet of the cooling tower. The anti-sticking layer is a special anti-sticking coating and is evenly brushed on the outer wall of the tower top.

[0028] As Figure 3 shown, the segmented component 100 includes a mounting bracket 110, a transmission wheel 120, and a conveyor belt 130. The mounting bracket 110 is installed on the inner wall of the top of the cooling tower. The mounting bracket 110 is inclined. There are two transmission wheels 120, which are respectively rotatably installed at both ends of the mounting bracket 110. The conveyor belt 130 is sleeved on the two transmission wheels 120 in a transmission manner. The drifting water mist inside the tower freely accumulates on the unpowered conveyor belt 130. Using the gravity of the ice column after freezing, the conveyor belt 130 is unbalanced and rotates. The part of the ice column extending out of the conveyor belt 130 breaks and falls due to its own weight, so that the ice column is divided into small segments and falls, reducing the impact force. Since the conveyor belt 130 adopts a non-powered design, when the ice column on the conveyor belt 130 just reaches a relatively small weight, the conveyor belt 130 will rotate. At this time, the ice column has not formed a strong integrity and is easy to break and fall subsequently, further reducing the impact force of the subsequent small ice column segments.

[0029] The anti-sticking layer is also provided on the inner wall of the top of the cooling tower to avoid the appearance of ice hanging on the inner wall of the tower top, thereby further avoiding the appearance of ice columns with too large a volume inside the tower. Specifically, the anti-sticking layer is also provided on the guardrail 600 at the top of the cooling tower.

[0030] As Figure 4 shown, the anti-large-piece icing mechanism for a cooling tower includes an inclined reinforcing rod 300. The top end of the reinforcing rod 300 is connected to the middle part of the arc-shaped cover plate 200, and the other end is connected to the outer wall of the bottom of the cooling tower. The setting of the reinforcing rod 300 improves the overall strength and stiffness of the arc-shaped cover plate 200.

[0031] Embodiment 2

[0032] In order to make the installation and removal of the arc-shaped cover plate 200 very convenient and not prone to loss of components, on the basis of Embodiment 1, mounting beams 400 are respectively installed on the outer wall at the bottom of the cooling tower and the front eaves of the wind and frost protection device, as Figure 5 shown. The top and bottom ends of the arc-shaped cover plate 200 are respectively connected to the mounting beam 400 through engaging components 500. Specifically, the mounting beam 400 at the front eaves of the wind and frost protection device is fixed on the main beam 3.

[0033] As Figures 5 - 7 shown, the engaging component 500 includes a frustum 510, a screw 520, a pin 530, a stop block 540, and a spring 550. The frustum 510 is arranged in a cavity 410 provided in the mounting beam 400. The screw 520 is threadedly passed through a threaded hole 420 opened at the top of the mounting beam 400, and its bottom end is connected to the top end of the frustum 510. The pin 530 is slidably arranged in a pin hole 430 opened at the left part of the mounting beam 400 and corresponds to a slot 210 opened at the end of the arc-shaped cover plate 200. The end of the pin 530 away from the arc-shaped cover plate 200 extends into the cavity 410 and contacts the circumferential surface of the frustum 510. The end face of the pin 530 away from the arc-shaped cover plate 200 is beveled. The stop blocks 540 are two and are symmetrically installed in the middle of the pin 530. The stop blocks 540 are slidably arranged in a groove 440 opened at the left part of the mounting beam 400. The spring 550 is arranged in the groove 440. The left end of the spring 550 abuts against the left side wall of the groove 440, and its right end abuts against the stop block 540. During installation, the top end of the arc-shaped cover plate 200 leans on the upper mounting beam 400, and its bottom end abuts against the lower mounting beam 400. Then, the screw 520 is rotated. The screw 520 moves downward and abuts against the end face of the pin 530 away from the arc-shaped cover plate 200 through the frustum 510, thereby forcing the pin 530 to move towards the arc-shaped cover plate 200 until the end of the pin 530 close to the arc-shaped cover plate 200 is inserted into the slot 210. During disassembly, the screw 520 is rotated in the reverse direction. The screw 520 moves upward, and the pin 530 moves away from the arc-shaped cover plate 200 under the action of the spring 550 until the end of the pin 530 close to the arc-shaped cover plate 200 withdraws from the slot 210 and retracts into the pin hole 430. Specifically, the end face of the pin 530 close to the arc-shaped cover plate 200 is spherical, which is convenient for the pin 530 to be inserted into the slot 210.

[0034] The above embodiments are only for explaining the technical concept and characteristics of the present invention. The purpose is to enable those skilled in the art to understand the content of the present invention and implement it, and it cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. An anti-big-piece icing mechanism for a cooling tower, characterized in that: It includes segmented components (100), arc-shaped cover plates (200) and an anti-sticking layer. The segmented components (100) are in several groups and are evenly installed along the circumferential direction on the inner wall of the top of the cooling tower. The top end of the arc-shaped cover plate (200) is installed on the outer wall of the bottom of the cooling tower, and its bottom end is installed on the front eaves of the wind and frost protection device at the bottom of the cooling tower. The anti-sticking layer is arranged on the outer wall of the top of the cooling tower.

2. The anti-big-piece icing mechanism for a cooling tower according to claim 1, wherein: The segmented component (100) includes a mounting bracket (110), a conveyor wheel (120) and a conveyor belt (130). The mounting bracket (110) is installed on the inner wall of the top of the cooling tower. The mounting bracket (110) is inclined. There are two conveyor wheels (120), which are respectively rotatably installed at both ends of the mounting bracket (110). The conveyor belt (130) is sleeved on the two conveyor wheels (120) in a transmission manner.

3. The anti-big-piece icing mechanism for a cooling tower according to claim 1, wherein: The anti-sticking layer is also arranged on the inner wall of the top of the cooling tower.

4. The anti-large-piece icing mechanism for a cooling tower according to claim 1, characterized in that: It also includes a reinforcing rod (300) arranged obliquely. The top end of the reinforcing rod (300) is connected to the middle part of the arc-shaped cover plate (200), and the other end of it is connected to the outer wall of the bottom of the cooling tower.

5. The anti-big-piece icing mechanism for a cooling tower according to claim 1, wherein: Mounting beams (400) are respectively installed on the outer wall of the bottom of the cooling tower and the front eaves of the wind and frost protection device. The top end and the bottom end of the arc-shaped cover plate (200) are respectively connected to the mounting beam (400) through clamping components (500).

6. The anti-big-piece icing mechanism for a cooling tower according to claim 5, wherein: The clamping component (500) includes a frustum (510), a screw (520), a bolt (530), a stop block (540) and a spring (550). The frustum (510) is arranged in a cavity (410) provided in the mounting beam (400). The screw (520) is threadedly inserted through a threaded hole (420) opened at the top of the mounting beam (400), and its bottom end is connected to the top end of the frustum (510). The bolt (530) is slidably arranged in a pin hole (430) opened on the left part of the mounting beam (400) and corresponds to a slot (210) opened at the end of the arc-shaped cover plate (200). The end of the bolt (530) far from the arc-shaped cover plate (200) extends into the cavity (410) and contacts the circumferential surface of the frustum (510). The end face of the bolt (530) far from the arc-shaped cover plate (200) is inclined. There are two stop blocks (540), which are symmetrically installed in the middle of the bolt (530). The stop blocks (540) are slidably arranged in a groove (440) opened on the left part of the mounting beam (400). The spring (550) is arranged in the groove (440). The left end of the spring (550) abuts against the left side wall of the groove (440), and its right end abuts against the stop block (540).

7. The anti-big-piece icing mechanism for a cooling tower according to claim 6, characterized in that: The end face of the bolt (530) close to the arc-shaped cover plate (200) is spherical.

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