Closed cooling tower with descaling structure

Abstract

The utility model discloses a closed cooling tower with a descaling structure, which comprises a heat exchange coil, the heat exchange coil is positioned in a shell, a descaling mechanism is arranged between the heat exchange coil and the shell, two sides of the heat exchange coil are respectively bent to form a bent groove, the descaling mechanism comprises a cleaning roller arranged along the extending direction of the bent groove, and the cleaning roller is positioned in the shell. The cleaning roller is inserted into the bending groove and moves relative to the bending groove so as to clean the surface of the heat exchange coil pipe; a cleaning roller matched with a bending groove formed by the structure of the heat exchange coil pipe is arranged, the cleaning roller is inserted into the bending groove, the cleaning roller is driven to reciprocate in the bending groove, and therefore the interior of the bending groove is effectively cleaned, a rotating shaft is arranged to drive bristles to rotate in the bending groove, and the cleaning efficiency is improved. The brush bristles rotate so as to increase contact and friction between the cleaning roller and the surface of the heat exchange coil pipe, the descaling and cleaning effect is enhanced, and even and effective cleaning of the bending position of the heat exchange coil pipe is guaranteed in combination with horizontal movement in the front-back direction.

Description

Technical Field

[0001] This utility model relates to the field of closed cooling tower technology, specifically to a closed cooling tower with a descaling structure. Background Technology

[0002] Closed-circuit cooling tower technology is used to cool heat transfer fluids. The closed-circuit cooling tower includes a shell, metal heat exchange coils installed inside the shell for the flow of heat transfer fluids, a spray device, a fan, and a spray water pump. The spray device sprays cooling water onto the metal heat exchange coils. After cooling, the heat transfer fluid is discharged from the closed-circuit cooling tower through the outlet of the heat exchange coils.

[0003] During operation, scale easily forms on heat exchange coils. Scale refers to a layer of solid or mud-like material that gradually accumulates on the solid surface in contact with the fluid during heat exchange. The presence of scale not only reduces heat transfer efficiency and increases energy and material consumption, but also may pose safety hazards. The heat exchange coils inside cooling towers are usually curved, and this curved structure makes it difficult to effectively clean the scale on the surface of the heat exchange coils, leading to incomplete cleaning and thus affecting the cooling effect. Utility Model Content

[0004] To address the shortcomings of existing technologies, a closed-loop cooling tower with a descaling structure is proposed, which solves the problem of ineffective cleaning of scale on the surface of heat exchange coils and incomplete cleaning in the aforementioned technologies.

[0005] To achieve the above objectives, the present invention proposes the following technologies:

[0006] A closed cooling tower with a descaling structure includes a heat exchange coil located inside a shell. A descaling mechanism is provided between the heat exchange coil and the shell. The heat exchange coil is bent on both sides to form bending grooves. The descaling mechanism includes a cleaning roller arranged along the extension direction of the bending groove. The cleaning roller is inserted into the bending groove and moves relative to the bending groove to clean the surface of the heat exchange coil.

[0007] Furthermore, the distance between the cleaning roller and the heat exchange coil is adjustable. The cleaning roller moves close to the heat exchange coil to enter the bending groove and reciprocates back and forth to clean the bending areas on both sides of the heat exchange coil.

[0008] Furthermore, the heat exchange coil includes a bent section and straight sections installed at both ends of the bent section. The straight sections are arranged parallel to each other, and the bent section and two adjacent straight sections form the bending groove.

[0009] Furthermore, the cleaning roller includes a rotating shaft and bristles evenly distributed on the surface of the rotating shaft. The rotating shaft is arranged parallel to the straight pipe section, and the bristles are arranged in a hemispherical shape at one end of the rotating shaft near the curved pipe section to effectively clean the bend of the curved pipe section.

[0010] Furthermore, the descaling mechanism also includes a sliding frame, on which the rotating shaft is rotatably connected. The sliding frame slides back and forth along the inner wall of the housing to drive the rotating cleaning roller to reciprocate within the bending groove to achieve descaling.

[0011] Furthermore, a drive gear is fixedly connected to the end of the rotating shaft, a transmission gear is provided between two adjacent drive gears, and a sprocket is also provided on any rotating shaft and is connected to the drive motor via a chain.

[0012] Furthermore, a slider is provided on the side of the sliding frame away from the heat exchange coil. The slider is slidably connected to a sliding groove opened on the inner wall of the shell. A lead screw is rotatably connected in the sliding groove, and the lead screw passes through the slider and is threadedly connected to the slider.

[0013] Furthermore, the length of the sliding groove is greater than the width of the heat exchange coil, so that the slider can drive the sliding frame to move to the front or rear side of the heat exchange coil, thus avoiding affecting the normal operation of the heat exchange coil.

[0014] Compared with the prior art, the comprehensive effects brought about by this utility model include:

[0015] (1) Set up a cleaning roller that matches the bending groove formed by the structure of the heat exchange coil itself. The cleaning roller is inserted into the bending groove and driven to reciprocate in the bending groove, thereby achieving effective cleaning of the inside of the bending groove. The inserted cleaning roller can effectively clean the scale formed on the inside of the bending part of the heat exchange coil, improve the cleaning effect, and prevent the scale from being incompletely cleaned and affecting the working efficiency of the heat exchange coil.

[0016] (2) The rotating shaft drives the brush to rotate in the bending groove. The hemispherical brush is set to correspond to the arc of the bending point. The rotation of the brush increases the contact and friction between the cleaning roller and the surface of the heat exchange coil pipe, thereby enhancing the descaling and cleaning effect. Combined with the horizontal movement in the front and back directions, it ensures uniform and effective cleaning of the bending point of the heat exchange coil. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall internal structure of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the cleaning roller structure according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the sliding frame in an embodiment of this utility model.

[0020] Legend: 1. Heat exchange coil; 2. Shell; 3. Bending groove; 4. Cleaning roller; 5. Bent section; 6. Straight section; 7. Rotating shaft; 8. Brush; 9. Sliding frame; 10. Drive gear; 11. Transmission gear; 12. Drive motor. Detailed Implementation

[0021] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Terms such as "upper," "lower," "left," "right," and "top" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0023] like Figures 1 to 3 As shown, a closed cooling tower with a descaling structure includes a heat exchange coil 1 located inside a shell 2. A descaling mechanism is provided between the heat exchange coil 1 and the shell 2. The two sides of the heat exchange coil 1 are bent to form bending grooves 3. The descaling mechanism includes a cleaning roller 4 arranged along the extension direction of the bending groove 3. The cleaning roller 4 is inserted into the bending groove 3 and moves relative to the bending groove 3 to clean the surface of the heat exchange coil 1.

[0024] A cleaning roller 4 is installed to match the bending groove 3 formed by the structure of the heat exchange coil 1. The cleaning roller 4 is inserted into the bending groove 3 and driven to reciprocate within the bending groove 3, thereby achieving effective cleaning of the inside of the bending groove 3. The inserted cleaning roller 4 can effectively clean the scale formed on the inside of the bending part of the heat exchange coil 1, improve the cleaning effect, and prevent incomplete scale removal from affecting the working efficiency of the heat exchange coil 1.

[0025] Specifically, the heat exchange coil 1 is installed through the left side of the shell 2, a spray device is provided above the heat exchange coil 1, a water collection tank is provided at the bottom of the shell 2, an exhaust fan is provided at the top of the shell 2, the air inlet of the exhaust fan is connected to the inside of the shell 2, and the water inlet of the spray device extends through the shell 2 to the outside of the shell 2.

[0026] In this embodiment of the closed cooling tower with a descaling structure, the distance between the cleaning roller 4 and the heat exchange coil 1 is adjustable. The cleaning roller 4 moves close to the heat exchange coil 1 to enter the bending groove 3 and moves back and forth to clean the bending points on both sides of the heat exchange coil 1.

[0027] Specifically, the heat exchange coil 1 is arranged vertically in a wave-like pattern, with bending grooves 3 forming on the left and right sides respectively. Cleaning rollers 4 are provided on the corresponding sides. The cleaning rollers 4 correspond to the bending grooves 3 on the left and right sides respectively, so that they can be smoothly inserted into the bending grooves 3 when moving back and forth, and move relative to the heat exchange coil 1 along the bending grooves 3 to clean and descale the internal bending parts of the heat exchange coil 1.

[0028] The distance between the cleaning roller 4 and the heat exchange coil 1 is adjustable, which makes it easier for the cleaning roller 4 to move away from the heat exchange coil 1, thereby avoiding affecting the normal operation of the heat exchange coil 1.

[0029] In the closed cooling tower with descaling structure of this embodiment, the heat exchange coil 1 includes a bent pipe section 5 and straight pipe sections 6 installed at both ends of the bent pipe section 5. The straight pipe sections 6 are arranged parallel to each other, and the bending groove 3 is formed between the bent pipe section 5 and two adjacent straight pipe sections 6.

[0030] The straight pipe sections 6 are set to be parallel to each other to ensure that the distance between adjacent straight pipe sections 6 is equal. This ensures that when the cleaning roller 4 moves back and forth along the bending groove 3, it can effectively and evenly clean the periphery of the bending groove 3, that is, the side where two adjacent straight pipe sections 6 are close together, as well as the inner side of the bending pipe section 5, thereby achieving descaling of the inside of the heat exchange coil 1.

[0031] In the closed cooling tower with descaling structure of this embodiment, the cleaning roller 4 includes a rotating shaft 7 and bristles 8 evenly distributed on the surface of the rotating shaft 7. The rotating shaft 7 is arranged parallel to the straight pipe section 6, and the bristles 8 are arranged in a hemispherical shape at one end of the rotating shaft 7 near the bent pipe section 5, so as to effectively clean the bend of the bent pipe section 5.

[0032] The rotating shaft 7 drives the brush bristles 8 to rotate within the bending groove 3. The hemispherical brush bristles are arranged to correspond to the arc shape of the bending point. The rotation of the brush bristles 8 increases the contact and friction between the cleaning roller 4 and the surface of the heat exchange coil 1, thereby enhancing the descaling and cleaning effect. Combined with the horizontal movement in the front and back directions, it ensures uniform and effective cleaning of the bending point of the heat exchange coil 1.

[0033] Preferably, the bristles 8 have a certain length and good toughness. The bristles 8 roll between the gaps in the horizontal direction of the heat exchange coil 1 and rotate in the bending groove 3 to rub against the outer wall of the heat exchange coil 1, thereby achieving descaling and cleaning of the surface of the straight pipe section 6 and the bent pipe section 5, and achieving comprehensive cleaning.

[0034] In the closed cooling tower with descaling structure in this embodiment, the descaling mechanism also includes a sliding frame 9. The rotating shaft 7 is rotatably connected to the sliding frame 9. The sliding frame 9 slides back and forth along the inner wall of the shell 2 to drive the rotating cleaning roller 4 to reciprocate in the bending groove 3 to achieve descaling.

[0035] The sliding frame 9 provides support for the cleaning roller 4. At the same time, the movement of the sliding frame 9 further drives the cleaning roller 4 to move back and forth along the bending groove 3. One sliding frame 9 is set on the left and one on the right. The positions of the rotating shafts 7 on the two sides of the sliding frame 9 correspond to the positions of the left bending groove 3 and the right bending groove 3, respectively.

[0036] Preferably, in this embodiment, the top and bottom straight pipe sections 6 penetrate the shell 2 and connect to the outside. A cleaning roller 4 installed on the right sliding frame 9 is added above the top straight pipe section 6 and below the bottom straight pipe section 6 to clean and descale the pipe surfaces on the upper and lower sides of the heat exchange coil 1, so as to avoid omissions and ensure the cleaning effect.

[0037] In the closed cooling tower with descaling structure in this embodiment, a drive gear 10 is fixedly connected to the end of the rotating shaft 7, and a transmission gear 11 is provided between two adjacent drive gears 10. A sprocket is also provided on any rotating shaft 7 and is connected to the drive motor 12 via a chain.

[0038] Specifically, based on the number and distribution interval of the rotating shafts 7, drive gears 10 and transmission gears 11 are set to achieve linkage between multiple drive gears 10. Then, the drive motor 12, in conjunction with the sprocket and chain structure, drives any rotating shaft 7 and drive gear 10 to rotate, and then drives other drive gears 10 to rotate through the transmission gear 11, thereby achieving synchronous rotation of the cleaning roller 4 to clean and descale the pipes in multiple bending grooves 3 respectively.

[0039] In the closed cooling tower with descaling structure of this embodiment, a slider is provided on the side of the sliding frame 9 away from the heat exchange coil 1. The slider is slidably connected in a sliding groove opened on the inner wall of the shell 2. A lead screw is rotatably connected in the sliding groove. The lead screw passes through the slider and is threadedly connected to the slider.

[0040] Specifically, one end of the lead screw passes through the housing 2 and is connected to the output end of the motor. The motor drives the lead screw to rotate and further drives the slider and sliding frame 9 to move back and forth inside the housing 2, so as to achieve the cleaning roller 4 cleaning each part of the bending groove 3.

[0041] In this embodiment of the closed cooling tower with a descaling structure, the length of the sliding groove is greater than the width of the heat exchange coil 1, so that the slider can drive the sliding frame 9 to move to the front or rear side of the heat exchange coil 1, thus avoiding affecting the normal operation of the heat exchange coil 1.

[0042] By moving the slider to the end of the sliding groove through the above settings, the sliding frame 9 drives the cleaning roller 4 away from the heat exchange coil 1, thereby achieving the avoidance and storage of the cleaning roller 4, reducing the space occupied, avoiding affecting the normal heat exchange operation of the heat exchange coil 1, and improving practicality.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "rotation", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] Although embodiments of the present invention have been shown and described in detail, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A closed cooling tower having a descaling structure, characterized by, The application relates to a heat exchange coil cleaning device, which comprises a heat exchange coil arranged in a shell, a descaling mechanism arranged between the heat exchange coil and the shell, and bending grooves formed by bending the two sides of the heat exchange coil.

2. The closed cooling tower with descaling structure according to claim 1, characterized in that, The distance between the cleaning roller and the heat exchange coil is adjustable, and the cleaning roller is close to the heat exchange coil to move into the bending groove and reciprocate forwards and backwards to clean the bending parts on the two sides of the heat exchange coil.

3. The closed cooling tower with descaling structure according to claim 1, characterized in that, The heat exchange coil comprises a bent pipe section and straight pipe sections arranged at the two ends of the bent pipe section, the straight pipe sections are arranged in parallel to each other, and the bending groove is formed between the bent pipe section and the two adjacent straight pipe sections.

4. The closed cooling tower with descaling structure according to claim 3, characterized in that, The cleaning roller comprises a rotating shaft and brush hairs uniformly distributed on the surface of the rotating shaft, the rotating shaft is arranged in parallel to the straight pipe sections, the brush hairs are arranged in a hemispherical shape at one end of the rotating shaft close to the bent pipe section, and the bent pipe section is effectively cleaned.

5. A closed cooling tower with descaling structure according to claim 4, characterized in that, The descaling mechanism further comprises a sliding frame, the rotating shaft is rotationally connected to the sliding frame, and the sliding frame slides forwards and backwards along the inner wall of the shell to drive the rotating cleaning roller to reciprocate in the bending groove and realize descaling.

6. A closed cooling tower with descaling structure according to claim 5, characterized in that, The end of the rotating shaft is fixedly connected with a driving gear, transmission gears are arranged between the adjacent driving gears, a sprocket is further arranged on any rotating shaft and is transmissionally connected with a driving motor through a chain.

7. A closed cooling tower with descaling structure according to claim 5, characterized in that, The side, away from the heat exchange coil, of the sliding frame is provided with a sliding block, the sliding block is slidingly connected in a sliding groove arranged in the inner wall of the shell, a screw rod is rotationally connected in the sliding groove, and the screw rod penetrates through the sliding block and is threadedly connected with the sliding block.

8. A closed cooling tower with descaling structure according to claim 7, characterized in that, The length of the sliding groove is greater than the width of the heat exchange coil, so that the sliding block drives the sliding frame to move to the front side or the rear side of the heat exchange coil, and the normal work of the heat exchange coil is avoided.

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