Bottom basin structure for dry and wet operation closed cooling tower

Abstract

The utility model discloses a bottom basin structure for a dry and wet operation closed cooling tower, which belongs to the technical field of cooling towers and comprises a plurality of bottom plates with the same placement height. The deep water tank plate is lower than other bottom plates and is used for collecting circulating water; the side plates are arranged around the bottom plate and the deep water tank plate in a surrounding manner to form a main body frame of the bottom basin; the water pump box is mounted above the deep water tank plate, and a circulating water pump is mounted in the water pump box; the water outlet flange is installed on the side edge of the water pump box and used for being connected with a water inlet of the circulating water pump; the filter screens are arranged at the two ends of the water outlet flange and are used for filtering impurities in the water in the bottom basin; and the access hole assembly is mounted above the water pump box and is used for overhauling the circulating water pump. According to the cooling tower, the circulating water pump is arranged above the bottom basin, the structural design of the bottom basin is optimized, the overall height of the cooling tower is reduced, the cost is reduced, and the maintenance convenience is improved.

Description

Technical Field

[0001] This utility model belongs to the field of cooling tower technology, specifically a bottom basin structure for a closed-loop cooling tower that operates in both dry and wet conditions. Background Technology

[0002] like Figure 1 As shown, a traditional closed-circuit cooling tower basin structure typically consists of several base plates of uniform height and surrounding side plates. This structure necessitates the installation of the circulating water pump beneath the basin, increasing the overall height of the cooling tower. Due to height restrictions during transportation and installation, the height occupied by the basin structure limits the design of other parts of the cooling tower, and the additional structural components also increase costs. Furthermore, traditional basin structures offer poor maintainability, making the maintenance of the circulating water pump and the cleaning of the filter unit inconvenient. Utility Model Content

[0003] To address the above problems, this utility model provides a base basin structure for a closed-loop cooling tower that operates in both dry and wet conditions. By installing the circulating water pump above the base basin, the base basin structure design is optimized, reducing the overall height of the cooling tower, decreasing costs, and improving maintenance convenience.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A base basin structure for a closed-loop cooling tower operating in both dry and wet modes includes:

[0006] Several base plates placed at the same height;

[0007] A deep water tank plate, lower than the other bottom plates, is used to collect circulating water;

[0008] Several side panels are arranged around the bottom plate and the deep water tank plate to form the main frame of the bottom basin;

[0009] A water pump box is installed above the deep water tank plate, and a circulating water pump is installed inside it;

[0010] The outlet flange is installed on the side of the pump box and is used to connect to the inlet of the circulating water pump.

[0011] A filter screen, installed at both ends of the outlet flange, is used to filter impurities in the bottom basin water;

[0012] The access panel assembly is installed above the pump box and is used for servicing the circulating water pump.

[0013] Furthermore, the base plate, deep water tank plate, and side plates are all sheet metal parts that are bent inward and have a C-shaped cross-section, and are connected to each other by bolts.

[0014] Furthermore, the outlet flange is made of a steel plate bent into a semi-circle, with a plug plate welded to one end and a flange plate welded to the other end, with the semi-circular opening facing downwards.

[0015] Furthermore, the filter screen is made of a steel plate with several holes of the same diameter that have been pre-drilled and bent, and is connected to the water outlet flange by self-tapping screws.

[0016] Furthermore, a handle is installed on the top of the access panel assembly to facilitate opening the access panel.

[0017] Furthermore, the water pump box is fixed above the deep water tank plate by bolts, and the circulating water pump installed inside is connected to the water distribution system.

[0018] Furthermore, the deep water tank plate can be placed at any position in the basin structure as needed.

[0019] Furthermore, when the cooling tower has a large volume, the bottom basin structure can be made into a split type, with circulating water flowing through the two bottom basins and converging into the middle bottom basin, and then entering the circulating water pump through the filter screen.

[0020] Furthermore, the basin structure also includes a drain outlet located at the bottom side of the water pump box for discharging dirt and debris from the basin.

[0021] Furthermore, the ports of the drain pipe, outlet pipe, water supply pipe, and overflow pipe in the basin structure are all equipped with universal flanges to facilitate the installation of pipes and accessories.

[0022] Compared with the prior art, the technical effects of the present invention are as follows:

[0023] 1. Reduce the overall height of the cooling tower: By installing the circulating water pump above the base, the frame structure below the base in the traditional design is eliminated, which greatly reduces the overall height of the cooling tower and solves the problems caused by height restrictions during transportation and installation.

[0024] 2. Cost savings: By eliminating the frame structure under the basin, additional structural components are reduced, thus lowering material and manufacturing costs.

[0025] 3. Compact structure and more reasonable stress distribution: The circulating water pump is installed above the bottom basin, making the internal structure of the cooling tower more compact and the stress distribution more reasonable, thus improving the stability and safety of the cooling tower.

[0026] 4. Improved ease of maintenance: The lowest water level in the basin is flush with the bottom of the basin, which facilitates pipe laying and maintenance; the design of the filter screen and inspection port components makes the maintenance of the circulating water pump and the cleaning of the filter device more convenient, thus improving maintenance efficiency.

[0027] 5. High adaptability: The base structure can be designed in a split manner according to the size and requirements of the cooling tower, adapting to different scales of cooling tower application scenarios, and has high flexibility. Attached Figure Description

[0028] Figure 1 A schematic diagram of the bottom basin structure of a traditional closed cooling tower;

[0029] Figure 2 This is a schematic diagram of the bottom basin structure for the closed-loop cooling tower used in dry and wet operation according to the present invention;

[0030] Figure 3 This is an exploded view of the base structure of the present invention.

[0031] In the diagram: 1-Base plate; 2-Deep water tank plate; 3-Side plate; 4-Outlet flange; 5-Circulating water pump; 6-Pump box; 7-Filter screen; 8-Water distribution system; 61-Inspection port assembly. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution, the present invention will be described in detail below with reference to the embodiments. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0033] like Figure 2 and Figure 3 As shown, the basin structure of the present invention includes several base plates 1 with the same placement height, a deep water trough plate 2 lower than the other base plates, and several side plates 3, which surround the base plates 1 and the deep water trough plate 2 to form the main frame of the basin. The water level in the deep water trough plate 2 is lower, and the circulating water in the basin flows through the outlet flange 4 above the deep water trough plate 2 into the circulating water pump 5, and then enters the water distribution system 8 from above the circulating water pump 5 for circulation.

[0034] A water pump box 6 is installed above the deep water tank plate 2, and a circulating water pump 5 is installed inside. An inspection port assembly 61 is installed above the water pump box 6 for inspecting and maintaining the circulating water pump 5. An outlet flange 4 is installed on the side of the water pump box 6 for connecting to the inlet of the circulating water pump 5. Two opposing filter screens 7 are installed at both ends of the outlet flange 4 for filtering impurities from the bottom basin water.

[0035] Specifically, the base plate 1, deep water tank plate 2, and side plate 3 are all sheet metal parts with inward bending and C-shaped cross-section, connected to each other by bolts. The outlet flange 4 is made of a steel plate bent into a semi-circle, with a plug plate welded to one end and a flange plate welded to the other end, with the semi-circular opening facing downwards. The filter screen 7 is made of a steel plate with several holes of the same diameter pre-drilled and bent, and is connected to the outlet flange 4 by self-tapping screws. A handle is installed on the top of the access port assembly 61 for easy opening of the access port.

[0036] When the cooling tower is large, the base basin structure can be made in a split configuration. Circulating water flows through the two side basins and converges into the middle basin, then passes through the filter screen 7 and enters the circulating water pump 5. The base basin structure also includes a drain outlet, located at the bottom side of the pump box 6, for discharging debris from the base basin. The ports of the drain pipe, outlet pipe, water supply pipe, and overflow pipe are all equipped with universal flanges for easy installation of pipes and accessories.

[0037] The specific workflow includes:

[0038] This base basin structure replaces the base basin structure of previous closed-loop cooling towers; the installation method of the rest of the cooling tower structure remains the same. During normal operation, circulating water collects from the base basin into the deep water trough 2, flows through the outlet flange 4 into the circulating water pump 5, and then flows from the pump outlet into the water distribution system 8. The water distribution system 8 evenly sprays the circulating water, thus circulating the spray water of the cooling tower. The flowing circulating water also carries impurities that collect in the deep water trough 2. These impurities can flow out through the drain port located at the bottom side of the pump box 6. (The ports of the drain pipe, outlet pipe, water supply pipe, and overflow pipe are all equipped with universal flanges, facilitating the installation of pipes and accessories, greatly improving maintainability.)

[0039] It should be noted that, in this document, the terms "comprising," "including," and any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of the present invention. These examples are merely for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be pointed out that, due to the limitations of written expression and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or variations without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the concept and technical solution of the present invention to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A base basin structure for a closed-loop cooling tower operating in both dry and wet conditions, characterized in that, include: Several base plates of the same height (1); A deep water tank plate (2) that is lower than the other bottom plates (1) is used to collect circulating water; Several side plates (3) are arranged around the bottom plate (1) and the deep water tank plate (2) to form the main frame of the bottom basin; A water pump box (6) is installed above the deep water tank plate (2), and a circulating water pump (5) is installed inside it; The outlet flange (4) is installed on the side of the water pump box (6) and is used to connect to the inlet of the circulating water pump (5); A filter screen (7) covers the water outlet flange (4) and is used to filter impurities in the bottom basin water; The access port assembly (61) is installed above the water pump box (6) for the maintenance of the circulating water pump (5).

2. The base basin structure according to claim 1, characterized in that, The base plate (1), deep water tank plate (2) and side plate (3) are all sheet metal parts that are bent inward and have a C-shaped cross section, and are connected to each other by bolts.

3. The basin structure according to claim 1, characterized in that, The outlet flange (4) is made of a steel plate bent into a semi-circle, with a plug plate welded to one end and a flange plate welded to the other end, and the semi-circular opening facing downwards.

4. The basin structure according to claim 1, characterized in that, The filter screen (7) is made by bending a steel plate with several holes of the same diameter.

5. The base basin structure according to claim 1, characterized in that, A handle is installed on the top of the access panel assembly (61) for easy opening of the access panel.

6. The basin structure according to claim 1, characterized in that, The water pump box (6) is fixed above the deep water tank plate (2) by bolts, and the circulating water pump (5) installed inside is connected to the water distribution system (8).

7. The basin structure according to claim 1, characterized in that, The deep water tank plate (2) can be placed at any position in the bottom basin structure as needed.

8. The basin structure according to claim 1, characterized in that, When the cooling tower is large, the bottom basin structure can be made into a split type, with circulating water flowing through the two bottom basins and converging into the middle bottom basin, and then entering the circulating water pump (5) through the filter screen (7).

9. The basin structure according to claim 1, characterized in that, The basin structure also includes a drain outlet, which is located at the bottom side of the water pump box (6) for draining dirt and debris from the basin.

10. The basin structure according to claim 1, characterized in that, The ports of the drain pipe, outlet pipe, water supply pipe, and overflow pipe in the basin structure are all equipped with universal flanges, which facilitates the installation of pipes and accessories.

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