A circulating water system for preventing air cooling tower from being blocked

Abstract

The utility model relates to air cooling technical field, concretely relates to a circulating water system of preventing air cooling tower block. Including air cooling tower, circulating water cooling tower, circulating water upper water pump, circulating water backwater pump and filter device, the circulating water outlet of air cooling tower is connected to the circulating water pool of circulating water cooling tower through pipeline, and the outlet of circulating water pool is connected to the circulating water import of air cooling tower through circulating water upper water pump and pipeline, and the pipeline that circulating water import of air cooling tower is connected with circulating water pool outlet sets up filter device, the utility model discloses through setting up filter device, the filler chippings, plastic sheet, paper scrap, leaf and so on sundries in circulating water are filtered, avoid these sundries to enter air cooling tower and block distributor, filler or tower board, guarantee that air cooling tower can long time steady operation. In addition, the filter of the utility model can realize on -line back -washing under the condition of not stopping.

Description

Technical Field

[0001] This utility model relates to the field of air cooling technology, specifically to a circulating water system for preventing air-cooled tower blockage. Background Technology

[0002] An air-cooled tower is a heat exchange device. Its working principle involves air entering from the bottom of the tower, exchanging heat with circulating water and chilled water before entering the air purification system. The air-cooled tower is divided into an upper section and a lower section. Chilled water cools the air in the upper section, while circulating water cools the air in the lower section. However, the circulating water for cooling the air comes from the circulating water system. Due to prolonged use, some damaged packing debris enters the circulating water and is pumped into the air-cooled tower, causing blockages in the water distributor, packing, or tower plates, thus affecting the normal operation of the air-cooled tower. Because the circulating water cooling tower is an open system, airborne debris such as plastic flakes, willow catkins, paper scraps, and leaves also enter the circulating water and are pumped into the cooling tower, further clogging the distributor, packing, or tower plates. Utility Model Content

[0003] The purpose of this invention is to provide a circulating water system that prevents air-cooled towers from clogging. By using a filter device, debris such as packing material fragments, plastic sheets, paper scraps, and leaves in the circulating water are filtered out, preventing these debris from entering the air-cooled tower and clogging the distributor, packing material, or tower plates, thus ensuring that the air-cooled tower can operate stably for a long time.

[0004] The technical solution of this utility model is as follows: A circulating water system for preventing blockage of an air-cooled tower includes an air-cooled tower, a circulating water cooling tower, a circulating water supply pump, a circulating water return pump, and a filter device; the circulating water outlet of the air-cooled tower is connected to the circulating water pool of the circulating water cooling tower through a pipeline, and the outlet of the circulating water pool is connected to the circulating water inlet of the air-cooled tower through the circulating water supply pump and a pipeline; a filter device is installed on the pipeline connecting the circulating water inlet of the air-cooled tower and the outlet of the circulating water pool.

[0005] Furthermore, the filtering device is a filter.

[0006] Furthermore, the filtration device includes two filters, one of which is a backup filter.

[0007] Furthermore, the filter includes a housing and a filter screen fixing frame disposed inside the housing. Two or more filter screens are fixed on the filter screen fixing frame. The filter screen fixing frame and the filter screens divide the internal space of the housing into two filter screen front spaces and one filter screen rear space. The housing of the two filter screen front spaces is respectively provided with a circulating water inlet a and a circulating water inlet b, and the housing of the filter screen rear space is provided with a circulating water outlet.

[0008] Furthermore, the filtering device is a filter screen. Beneficial effects

[0009] This invention uses a filtration device to filter out debris such as packing material fragments, plastic sheets, paper scraps, and leaves from the circulating water, preventing these impurities from entering the air-cooled tower and clogging the distributor, packing material, or tower plates, thus ensuring the long-term stable operation of the air-cooled tower. Furthermore, the filter in this invention can perform online backwashing without shutting down the system. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 A partial cross-sectional view of the main structure of the filter of this utility model;

[0012] Figure 3 A bottom view of the partial cross-section of the filter of this utility model;

[0013] Figure 4 Left view of the filter structure of this utility model;

[0014] In the diagram: 1-Air-cooled tower; 2-Circulating water return pump; 3-Circulating water cooling tower; 4-Filter; 5-Circulating water supply pump; 6-Air duct a; 7-Air duct b; 8-Chiller water supply duct; 9-Chiller water return duct; 10-Shell; 11-Circulating water inlet a; 12-Circulating water inlet b; 13-Circulating water outlet; 14-Reinforcing plate; 15-Filter screen; 16-Filter holes; 17-Filter screen mounting bracket. Detailed Implementation Example 1

[0015] refer to Figure 1-4To filter out debris such as packing material fragments, plastic pieces, paper scraps, and leaves from the circulating water, preventing these impurities from clogging the distributor, packing material, or tower plates in the air-cooled tower 1 and ensuring its long-term stable operation, this invention provides a circulating water system for preventing air-cooled tower blockage. The system includes an air-cooled tower 1, a circulating water cooling tower 3, a circulating water supply pump 5, a circulating water return pump 2, and a filter device. The air inlet of the air-cooled tower 1 is connected to air pipe a6, and the air outlet of the air-cooled tower 1 is connected to air pipe b7. The chilled water inlet of the air-cooled tower 1 is connected to chilled water supply pipe 8, and the chilled water outlet of the air-cooled tower 1 is connected to chilled water return pipe 9. The circulating water outlet of the air-cooled tower 1 is connected to the circulating water pool of the circulating water cooling tower 3 via a pipe. The outlet of the circulating water pool is connected to the circulating water inlet of the air-cooled tower 1 via the circulating water supply pump 5 and a pipe. A filter device is installed on the pipe connecting the circulating water inlet of the air-cooled tower 1 and the outlet of the circulating water pool. The filter 4 is a housing 10, and a filter screen fixing frame 17 is installed inside the housing 10. Eight filter screens 15 are fixed on the filter screen fixing frame 17. The filter screens 15 are provided with filter holes 16, and the diameter of the filter holes 16 is 5mm-10mm. The filter screen fixing frame 17 and the filter screens 15 divide the internal space of the housing 10 into two filter screen front spaces and one filter screen rear space. A reinforcing plate 14 is installed in the filter screen rear space. The reinforcing plate 14 is welded to the inner wall of the housing 10 and the filter screen fixing frame 17, so that the housing 10 behind the filter screens can withstand higher pressure without deformation. The housing 10 in the two filter screen front spaces is provided with circulating water inlet a11 and circulating water inlet b12 respectively, and the housing 10 in the filter screen rear space is provided with circulating water outlet 13.

[0016] In use, the filter 4 of this invention allows circulating water from the circulating water tank to enter the filter 4 through the circulating water inlet a11 by controlling the valve. No circulating water enters through the circulating water inlet b12. The circulating water is filtered by the filter screen 15 and flows out through the circulating water outlet 13, then is pumped by the circulating water pump 5 to the air-cooled tower 1 to cool the air. After cooling the air, the circulating water is returned to the circulating water tank by the circulating water return pump 2. When the filter screen 15 in the filter 4 becomes clogged, and the water intake at the circulating water inlet a11 is insufficient, the valve is switched to allow circulating water to enter the filter 4 through the circulating water inlet b12. After being filtered by the filter screen 15, the circulating water flows out through the circulating water outlet 13 and is pumped by the circulating water pump 5 to the air-cooled tower 1 to cool the air. Simultaneously, the circulating water in the filter 4 is backwashed by allowing the circulating water inlet a11 to flow out, thus backwashing the clogged filter screen 15. The backwash water is discharged from the circulating water system. After the filter screen is cleaned, the valve is switched to stop the circulating water from flowing out of the circulating water inlet a11. When the filter screen 15 inside the filter 4 becomes clogged and the circulating water inlet b12 is insufficient, the valve is switched to allow circulating water to enter the filter 4 from the circulating water inlet a11. After being filtered by the filter screen 15, the circulating water flows out from the circulating water outlet 13 and is sent to the air-cooled tower 1 by the circulating water pump 5 to cool the air. At the same time, the circulating water inside the filter 4 is backwashed by allowing the circulating water inlet b12 to flow out from the circulating water inlet b12. The filter 4 of this invention can clean the filter screen 15 without stopping the machine. Example 2

[0017] refer to Figure 1 To filter out debris such as packing material fragments, plastic sheets, paper scraps, and leaves from the circulating water, preventing these debris from clogging the distributor, packing material, or tower plates in the air-cooled tower 1 and ensuring its long-term stable operation, this invention provides a circulating water system for preventing air-cooled tower blockage. The system includes an air-cooled tower 1, a circulating water cooling tower 3, a circulating water supply pump 5, a circulating water return pump 2, and a filter device. The air inlet of the air-cooled tower 1 is connected to air pipe a6, and the air outlet of the air-cooled tower 1 is connected to air pipe b7. The chilled water inlet of the air-cooled tower 1 is connected to chilled water supply pipe 8, and the chilled water outlet of the air-cooled tower 1 is connected to chilled water return pipe 9. The circulating water outlet 13 of the air-cooled tower 1 is connected to the circulating water pool of the circulating water cooling tower 3 via a pipe. The outlet of the circulating water pool is connected to the circulating water inlet of the air-cooled tower 1 via a circulating water pump and a pipe. A filter device, specifically a filter screen, is installed on the pipe connecting the circulating water inlet of the air-cooled tower 1 and the outlet of the circulating water pool.

[0018] Another embodiment differs from embodiment 1 in that: two filters 4 are provided, one of which is a backup filter.

[0019] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A circulating water system for preventing blockage of air-cooled towers, characterized in that: It includes an air-cooled tower, a circulating water cooling tower, a circulating water supply pump, a circulating water return pump, and a filtration device; the circulating water outlet of the air-cooled tower is connected to the circulating water pool of the circulating water cooling tower through a pipeline, and the outlet of the circulating water pool is connected to the circulating water inlet of the air-cooled tower through the circulating water supply pump and a pipeline, and a filtration device is installed on the pipeline connecting the circulating water inlet of the air-cooled tower and the outlet of the circulating water pool.

2. A circulating water system for preventing blockage of air-cooled towers according to claim 1, characterized in that: The filtration device is a filter.

3. A circulating water system for preventing blockage of air-cooled towers according to claim 2, characterized in that: The filter includes a housing and a filter screen fixing frame inside the housing. Two or more filter screens are fixed on the filter screen fixing frame. The filter screen fixing frame and the filter screens divide the internal space of the housing into two filter screen front spaces and one filter screen rear space. The two filter screen front spaces are respectively provided with circulating water inlet a and circulating water inlet b on the housing, and the filter screen rear space is provided with circulating water outlet on the housing.

4. A circulating water system for preventing blockage of an air-cooled tower according to any one of claims 2 or 3, characterized in that: The filtration device includes two filters, one of which is a backup filter.

5. A circulating water system for preventing blockage of air-cooled towers according to claim 1, characterized in that: The filtration device is a filter screen.

Images