Cleaning structure for cooling tower

Abstract

The utility model belongs to the technical field of cleaning structures, and particularly relates to a cleaning structure for a cooling tower, which comprises a funnel-shaped water collecting disc arranged in the cooling tower, a water leakage pipe arranged at the bottom end of the water collecting disc, a sleeve rotationally connected with the outer wall of the water leakage pipe in a sleeving manner, and a rotating shaft arranged at the axis of the sleeve and provided with the top end extending out of the water leakage pipe, a plurality of fixing frames connected with the inner wall of the sleeve are arranged at the bottom end of the rotating shaft in an axis rotating array mode, and a plurality of scraping plates with the bottoms abutting against the water collecting disc are arranged at the top end of the rotating shaft in an axis rotating array mode. The outer wall of the sleeve is sleeved with a rotationally-connected water storage pipe, the bottom of the water storage pipe is connected with a blow-off pipe, the tail end of the blow-off pipe is in threaded connection with a detachable dirt tank, and a first valve is arranged on the blow-off pipe; and a driving motor is arranged on one side of the sleeve for driving. Compared with the prior art, the cleaning structure has the advantages that automatic and efficient cleaning of the water collecting disc of the cooling tower is achieved, manual intervention and cleaning cost are remarkably reduced, and cooling water quality and cooling tower operation efficiency are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning structures, and particularly relates to a cleaning structure for a cooling tower. Background Art

[0002] In industrial production and large-scale facility cooling systems, as a key device, the operating efficiency and stability of a cooling tower directly affect the heat exchange efficiency and energy consumption level of the entire system. In the traditional design of a cooling tower, as a component for collecting and discharging the cooled water droplets after heat exchange, the cleanliness of the internal environment of the water collecting tray is crucial for maintaining the quality of the cooling water, preventing pipeline blockage, and improving the overall cooling efficiency. However, the water collecting trays in the prior art generally face a significant problem: during long-term use, impurities such as dust, microorganisms, and fine particles in the air will be adsorbed by the circulating water and deposited at the bottom of the water collecting tray along with the water flow, gradually accumulating to form a dirt layer that is difficult to clean.

[0003] These dirt not only increase the drainage resistance, but also may breed bacteria, affect the water quality, and even cause corrosion damage to the cooling tower and its subsequent treatment equipment. Traditional cleaning methods mostly rely on manual cleaning at regular intervals, which not only has a high labor intensity and low efficiency, but also easily causes secondary pollution of the water quality during the cleaning process, increasing the difficulty and cost of subsequent treatment. In addition, frequent manual cleaning may also lead to an extended downtime for maintenance of the cooling tower, affecting production continuity and economic benefits.

[0004] In view of the above problems, there is a certain market demand for designing a cleaning structure that can automatically and efficiently clean the dirt in the water collecting tray of a cooling tower. Summary of the Invention

[0005] Aiming at the deficiencies of the above-mentioned prior art, the utility model provides a cleaning structure for a cooling tower to solve the above problems.

[0006] A cleaning structure for a cooling tower of the utility model includes a funnel-shaped water collecting tray arranged in the cooling tower. A drain pipe is arranged at the center of the bottom end of the water collecting tray. A rotating sleeve is sleeved on the outer wall of the drain pipe. A rotating shaft with its top end extending out of the drain pipe is arranged at the center of the sleeve. A plurality of fixing frames connecting the inner wall of the sleeve are rotationally arrayed at the bottom end of the rotating shaft around the axis. A plurality of scrapers with their bottoms abutted against the inner wall of the water collecting tray are rotationally arrayed at the top end of the rotating shaft around the axis. A water storage pipe is sleeved on the outer wall of the sleeve and is rotationally connected. The water storage pipe is a segmented structure, including an input section connected to the sleeve, a horizontal output section, and a U-shaped section connecting the input section and the output section. A sewage pipe is connected to the bottom of the U-shaped section. A detachable dirt tank is screwed to the end of the sewage pipe. A first valve is arranged on the sewage pipe. A bracket fixedly connected to the cooling tower is arranged on the water storage pipe. A driving motor is arranged on the bracket. A transmission part is arranged between the driving motor and the sleeve for connection.

[0007] Further, the sewage pipe is a tee pipe. One branch of the tee pipe is provided with a first valve and is connected to the U-shaped section. The second branch is connected to the dirt tank. The third branch is set as the water inlet. A drain pipe is arranged at the bottom of the dirt tank, and a second valve is arranged on the drain pipe.

[0008] Further, plate frames located above the scraping plates and corresponding to the scraping plates one by one are arranged on the rotating shaft. A plurality of spring rods are arranged between the plate frames and the scraping plates.

[0009] Further, the transmission part includes a toothed belt and a driving gear. The driving gear is arranged on the driving shaft of the driving motor. A toothed ring is arranged on the outer wall of the sleeve. The toothed belt connects the driving gear and the toothed ring.

[0010] Further, a plurality of dirt retaining rings are arranged at one end of the output section of the water storage pipe close to the U-shaped section. The inner ring of the dirt retaining ring inclines towards one end of the U-shaped section.

[0011] Further, the first valve is an electric control butterfly valve.

[0012] Further, a first bearing is arranged between the drain pipe and the sleeve, and first oil seals are arranged on both the upper and lower end faces of the first bearing.

[0013] Further, a second bearing is arranged between the sleeve and the input section of the water storage pipe, and second oil seals are arranged on both the upper and lower end faces of the second bearing.

[0014] Compared with the prior art, this cleaning structure realizes the automatic and efficient cleaning of the water accumulation tray of the cooling tower, significantly reduces manual intervention and cleaning costs, improves the quality of cooling water and the operation efficiency of the cooling tower, reduces the maintenance difficulty, and has remarkable economic benefits and market application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front elevation sectional view of the present utility model;

[0016] Figure 2 is Figure 1 the enlarged view of the partial detail A in

[0017] Figure 3 is the top view of the present utility model;

[0018] Figure 4 is the partial front elevation sectional view of the present utility model;

[0019] Figure 5 is Figure 4 the enlarged view of the partial detail B in

[0020] In the figure: 1, water accumulation tray; 2, drain pipe; 3, sleeve; 4, rotating shaft; 5, fixing frame; 6, scraper; 7, water storage pipe; 8, input section; 9, output section; 10, U-shaped section; 11, sewage pipe; 12, dirt tank; 13, first valve; 14, bracket; 15, drive motor; 16, transmission part; 17, water inlet; 18, vent pipe; 19, second valve; 20, plate frame; 21, spring rod; 22, toothed belt; 23, drive gear; 24, dirt retaining ring; 25, first bearing; 26, first oil seal; 27, second bearing; 28, second oil seal. Detailed implementation mode

[0021] For a better understanding of the present utility model, the following will combine Figures 1 to 5 to explain in detail the implementation mode of the present utility model.

[0022] It should be noted that the directions of "front, back, left, right, up, and down" described in the text are all based on the Figure 1 directions of "front, back, left, right, up, and down" therein.

[0023] Referring to Figures 1 to 5 , a cleaning structure for a cooling tower of the present utility model includes a funnel-shaped water accumulation tray 1 arranged in the cooling tower, and this water accumulation tray 1 is used to collect the water droplets dripping after heat exchange. A drain pipe 2 is connected to the center of the bottom end of the water accumulation tray 1 for discharging water. On this basis, a rotatably connected sleeve 3 is sleeved on the outer wall of the drain pipe 2.

[0024] A rotating shaft 4 is provided at the center of the sleeve 3. The top end of the rotating shaft 4 extends out of the drain pipe 2, and a plurality of scrapers 6 with their bottoms abutting against the inner wall of the water accumulation tray 1 are arranged in an axial rotation array at its top. As the rotating shaft 4 rotates, these scrapers 6 can effectively scrape the dirt at the bottom of the water accumulation tray 1 to achieve automatic cleaning.

[0025] Another rotatably connected water storage pipe 7 is also sleeved on the outer wall of the sleeve 3. The water storage pipe 7 adopts a segmented structure, including an input section 8 directly connected to the sleeve 3, a horizontally arranged output section 9, and a U-shaped section 10 connecting the input section 8 and the output section 9. After the cooling tower operates for a period of time, the drive motor 15 can be started through the control system, and the motor drives the sleeve 3 and the rotating shaft 4 to rotate through the transmission part 16. The scraper 6 on the rotating shaft 4 rotates accordingly, scrapes the dirt at the bottom of the water accumulation tray 1, and enters the water storage pipe 7 along with the water flow. Under the action of gravity, when the water and dirt flow through the U-shaped section 10, due to the slowdown of the flow rate, most of the dirt is deposited at the bottom of the U-shaped section 10, and the clear water continues to flow to the output section 9 for discharge.

[0026] A sewage pipe 11 is connected to the bottom of the U-shaped section 10, and a detachable dirt tank 12 is screwed to the end of the sewage pipe 11 for collecting the dirt precipitated from the U-shaped section 10.

[0027] To drive the rotation of the sleeve 3 and the rotating shaft 4, a bracket 14 fixedly connected to the cooling tower is provided on the water storage pipe 7 of this cleaning structure, and a driving motor 15 is installed on the bracket 14. The driving motor 15 is connected to the sleeve 3 through a transmission part 16.

[0028] Preferably, the transmission part 16 includes a toothed belt 22 and a driving gear 23. The driving gear 23 is fixed on the driving shaft of the driving motor 15, and a toothed ring is provided on the outer wall of the sleeve 3. The toothed belt 22 is wound between the driving gear 23 and the toothed ring to achieve power transmission.

[0029] In order to facilitate the efficient cleaning of the dirt entering the dirt tank 12, as Figure 4 and Figure 5 shown in, the sewage pipe 11 is selected as a tee pipe. One connection of the tee pipe is provided with a first valve 13 and is connected to the U-shaped section 10. The second connection is connected to the dirt tank 12. The third connection is set as a water inlet 17. A drain pipe 18 is provided at the bottom of the dirt tank 12, and a second valve 19 is provided on the drain pipe 18.

[0030] In order to further increase the adaptability and cleaning effect of the scraper 6, as Figure 1 and Figure 2 shown in, a plate frame 20 located above the scraper 6 is further provided on the rotating shaft 4. The plate frame 20 is connected to the scraper 6 through a plurality of spring rods 21, so that the scraper 6 can automatically adjust the pressure according to the dirt thickness of different parts.

[0031] In order to achieve flexible rotation between pipes, a second bearing 27 is provided between the sleeve 3 and the input section 8 of the water storage pipe 7. A second bearing 27 is provided between the sleeve 3 and the input section 8 of the water storage pipe 7. To ensure the sealing performance at the pipe connection, first oil seals 26 are provided on the upper and lower end faces of the first bearing 25, and second oil seals 28 are provided on the upper and lower end faces of the second bearing 27. Sealing components are provided to prevent the leakage of lubricating oil.

[0032] To improve the sewage discharge efficiency, a plurality of dirt retaining rings 24 are further provided at the output section 9 (near the U-shaped section 10) of the water storage pipe 7. The inner rings of these retaining rings are inclined towards one end of the U-shaped section 10, which helps to guide the dirt in the water flow towards the sewage pipe 11 and prevent the dirt from flowing out of the water storage pipe 7 along with the water flow.

[0033] The usage method and principle of this utility model:

[0034] When it is necessary to clean the water collecting tray 1, first, start the driving motor 15, and drive the rotation of the sleeve 3 and the rotating shaft 4 through the transmission part 16. The scraper 6 rotates with the rotating shaft 4, and the bottom closely adheres to the surface of the water collecting tray 1 to scrape off the deposited dirt.

[0035] Subsequently, the scraped dirt enters the water storage pipe 7 along with the water flow, is deposited into the sewage pipe 11 through the U-shaped section 10, and is input into the dirt tank 12. When the dirt accumulates to a certain extent, the first valve 13 is closed, the second valve 19 on the vent pipe 18 is opened, and high-pressure cleaning water is introduced through the water inlet 17 to empty the dirt and sewage in the dirt tank 12.

[0036] Finally, stop inputting high-pressure cleaning water into the water inlet 17, and at the same time close the second valve 19 and open the first valve 13 to complete the cleaning operation.

[0037] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the communication inside two elements. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0038] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cleaning structure for a cooling tower, comprising a funnel-shaped water collection tray (1) arranged in the cooling tower, wherein a water leakage pipe (2) is arranged at the axis center of the bottom end of the water collection tray (1), characterized in that: The outer wall of the leakage pipe (2) is sleeved with a rotatably connected sleeve (3); the sleeve (3) is provided with a rotating shaft (4) at the axis center, the top of which extends out from the leakage pipe (2); the bottom end of the rotating shaft (4) is provided with a plurality of fixed frames (5) connected to the inner wall of the sleeve (3) in an array rotating around the axis; the top end of the rotating shaft (4) is provided with a plurality of scrapers (6) whose bottoms abut against the inner wall of the water collection tray (1) in an array rotating around the axis; the outer wall of the sleeve (3) is sleeved with a rotatably connected water storage pipe (7); the water storage pipe (7) is a segmented structure, comprising an input section ( 8), a transverse output section (9), and a U-shaped section (10) connecting the input section (8) and the output section (9), the bottom of the U-shaped section (10) is connected to a sewage pipe (11), the end of the sewage pipe (11) is screwed with a detachable dirt tank (12), and the sewage pipe (11) is provided with a first valve (13); the water storage pipe (7) is provided with a bracket (14) fixedly connected to the cooling tower, the bracket (14) is provided with a driving motor (15), and a transmission part (16) is provided between the driving motor (15) and the sleeve (3).

2. A cleaning structure for a cooling tower as claimed in claim 1, characterized in that: The sewage discharge pipe (11) is a three-way pipe, one of which is provided with a first valve (13) and connected to the U-shaped section (10), and the other is connected to the dirt tank (12). The three-way pipe is provided as a water inlet (17). A drain pipe (18) is provided at the bottom of the dirt tank (12), and a second valve (19) is provided on the drain pipe (18).

3. A cleaning structure for a cooling tower as claimed in claim 1, characterized in that: The rotating shaft (4) is provided with a plate frame (20) located above the scraper (6) and corresponding one to one with the scraper (6), and a plurality of spring rods (21) are provided between the plate frame (20) and the scraper (6).

4. A cleaning structure for a cooling tower as claimed in claim 1, characterized in that: The transmission part (16) comprises a toothed belt (22) and a driving gear (23); the driving gear (23) is arranged on the driving shaft of the driving motor (15); a toothed ring is arranged on the outer wall of the sleeve (3); and the toothed belt (22) connects the driving gear (23) and the toothed ring.

5. A cleaning structure for a cooling tower as claimed in claim 1, characterized in that: The output section (9) of the water storage pipe (7) is provided with a plurality of dirt retaining rings (24) at one end close to the U-shaped section (10), and the inner ring of the dirt retaining ring (24) is inclined toward one end of the U-shaped section (10).

6. A cleaning structure for a cooling tower as claimed in claim 1, characterized in that: The first valve (13) is an electrically controlled butterfly valve.

7. A cleaning structure for a cooling tower as claimed in claim 1, characterized in that: A first bearing (25) is arranged between the leaking pipe (2) and the sleeve (3), and first oil seals (26) are arranged on the upper and lower end surfaces of the first bearing (25).

8. A cleaning structure for a cooling tower as claimed in claim 7, characterized in that: A second bearing (27) is provided between the sleeve (3) and the input section (8) of the water storage pipe (7), and second oil seals (28) are provided on the upper and lower end surfaces of the second bearing (27).

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