Circulating water treatment system for power plant

Abstract

The utility model discloses a power plant circulating water treatment system which comprises a box body, a feeding pipe arranged in a feeding hole formed in the front side of the upper end of the box body, a feeding valve connected in series with the middle of the feeding pipe, a drainage pipe arranged in a drainage hole formed in the lower side of the right end of the box body, a drainage valve connected in series with the middle of the drainage pipe, and a mixing mechanism, the mixing mechanism comprises a vertical rod, stirring fan blades and lifting plates, the vertical rod is slidably connected into a sliding hole formed in the middle of the top wall of the box body, the stirring fan blades are arranged on the lower side of the outer arc surface of the vertical rod and located in the box body, and the lifting plates are arranged in the middle of the outer arc surface of the vertical rod. The traditional mode that circulating water and chemicals are mixed through a propeller stirrer can be replaced, dead angles in the mixing process are reduced, and the risk of biological pollution is reduced while water quality balance is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of circulating water treatment equipment, specifically a power plant circulating water treatment system. Background Technology

[0002] The power plant circulating water treatment system is an important facility used in power plants. It provides cooling for power plant equipment, especially generators and condensers, to maintain the equipment operating at a suitable temperature. By circulating water, it reduces wastewater discharge and lowers the impact on the environment.

[0003] In the operation of a power plant's circulating water treatment system, the circulating water is typically filtered first using a filter screen to separate solid particles and impurities. Then, chemicals such as corrosion inhibitors, scale inhibitors, algaecides, and pH adjusters are added to the filtered circulating water. Afterward, a propeller agitator is used to mix the circulating water and chemicals, thereby controlling water quality and preventing corrosion of pipes and equipment, scale buildup, and microbial growth. After the circulating water is treated, the drain valve is opened, and the treated circulating water is discharged through the drain pipe.

[0004] Existing power plant circulating water treatment systems, while capable of mixing circulating water and chemicals using propeller agitators, suffer from limited mixing capabilities. This results in blind spots and dead zones, preventing some circulating water and chemicals from being adequately mixed. Consequently, some areas may have excessively high chemical concentrations while others are insufficient, disrupting water quality balance. Uneven distribution of algaecides and microbial control agents can also lead to microbial growth in certain areas, increasing the risk of biological contamination. Therefore, we propose a new power plant circulating water treatment system. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a power plant circulating water treatment system that can replace the traditional method of mixing circulating water and chemicals with a propeller agitator. This system further increases the contact area between circulating water and chemicals, reduces dead zones in the mixing process, ensures water quality balance, and reduces the risk of biological pollution, thus effectively solving the problems in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a power plant circulating water treatment system, including a tank, an inlet port on the front side of the upper end of the tank containing an inlet pipe, an inlet valve connected in series in the middle of the inlet pipe, a drain port on the lower side of the right end of the tank containing a drain pipe, a drain valve connected in series in the middle of the drain pipe, and a mixing mechanism.

[0007] The mixing mechanism includes a vertical pole, stirring blades, and lifting plates. The vertical pole is slidably connected to a sliding hole in the middle of the top wall of the tank. Stirring blades are respectively installed on the lower side of the outer arc surface of the vertical pole, and the stirring blades are all located inside the tank. The lifting plates are respectively installed in the middle of the outer arc surface of the vertical pole, and the lifting plates are spaced apart from the stirring blades at the same height. This mechanism can replace the traditional method of mixing circulating water and chemicals with a propeller agitator, further increasing the contact area between circulating water and chemicals, reducing dead zones in the mixing process, ensuring water quality balance, and reducing the risk of biological contamination.

[0008] Furthermore, it also includes a control switch assembly, which is located at the right end of the enclosure. The input end of the control switch assembly is electrically connected to an external power supply and can regulate the electrical components inside the equipment.

[0009] Furthermore, the mixing mechanism also includes guide rods, connecting plates, mounting frames, fixed seats, and limiting rods. The guide rods are slidably connected to the sliding grooves opened on the front and rear sides of the upper end of the box body. Each guide rod has a baffle at its lower end. The upper ends of both guide rods are fixedly connected to the lower end of a connecting plate. The lower end of the connecting plate is rotatably connected to the upper end of the upright. The upper end of the connecting plate is provided with a mounting frame. A fixed seat is provided in the middle of the upper end of the mounting frame. A limiting rod is provided at the upper end of the fixed seat, which can drive the lifting plate to perform vertical reciprocating motion.

[0010] Furthermore, a motor is provided in the middle of the upper end of the connecting plate. The motor is located inside the mounting frame. The lower end of the motor output shaft is fixedly connected to the upper end of the upright. The input end of the motor is electrically connected to the output end of the control switch group, which can drive the stirring fan blades to rotate through the upright.

[0011] Furthermore, a filter box is provided on the upper left side of the box body, a filter screen is provided on the upper inside of the filter box, and a water inlet pipe is provided in the water inlet on the upper front side of the filter box. A water inlet valve is connected in series in the middle of the water inlet pipe. The water inlet pipe is located on the upper side of the filter box. The right end of the filter box is connected to the left end of the box body through a connecting pipe, which can filter the circulating water.

[0012] Furthermore, a vertical plate is provided on the left side of the upper end of the filter box, and a mounting base is provided in the middle of the right end of the vertical plate. A transmission plate is rotatably connected to the right end of the mounting base. An adjustment groove is provided in the middle of the front end of the transmission plate, and a limit groove is provided on the right side of the front end of the transmission plate. The limit rod is located inside the limit groove and can drive the vertical rod to perform vertical reciprocating motion.

[0013] Furthermore, a fixing plate is provided on the rear side of the upper end of the filter box, a drive motor is provided in the middle of the front end of the fixing plate, a central wheel is provided at the front end of the output shaft of the drive motor, an adjusting rod is provided at the edge of the front end of the central wheel, the front end of the adjusting rod is located inside the adjusting groove, the input end of the drive motor is electrically connected to the output end of the control switch group, and can drive the transmission plate to rotate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This power plant circulating water treatment system has the following advantages:

[0015] By using a combination of transmission plate and adjusting rod, the lifting plate can be driven by the upright rod to perform vertical reciprocating motion during the rotation of the mixing fan blades. This replaces the traditional method of mixing circulating water and chemicals with a propeller agitator, further increasing the contact area between the circulating water and chemicals, reducing dead zones in the mixing process, ensuring water quality balance, and reducing the risk of biological contamination. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the front sectional structure of the present invention;

[0018] Figure 3 This is an enlarged structural diagram of point A in this utility model.

[0019] In the diagram: 1. Box body, 2. Control switch group, 3. Filter box, 4. Filter screen, 5. Water inlet pipe, 6. Drain pipe, 7. Feed pipe, 8. Mixing mechanism, 81. Vertical pole, 82. Stirring fan blade, 83. Lifting plate, 84. Guide rod, 85. Connecting plate, 86. Mounting frame, 87. Fixing seat, 88. Limiting rod, 9. Motor, 10. Vertical plate, 11. Mounting seat, 12. Transmission plate, 13. Fixing plate, 14. Drive motor, 15. Center wheel, 16. Adjusting rod, 17. Connecting pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3This embodiment provides a technical solution: a power plant circulating water treatment system, including a tank 1, an inlet port opened on the front side of the upper end of the tank 1 with an inlet pipe 7, an inlet valve connected in series in the middle of the inlet pipe 7, a drain pipe 6 opened on the lower side of the right end of the tank 1 with a drain valve connected in series in the middle of the drain pipe 6, and a mixing mechanism 8.

[0022] Mixing mechanism 8: It includes a vertical rod 81, stirring blades 82, and lifting plates 83. The vertical rod 81 is slidably connected to a sliding hole in the middle of the top wall of the housing 1. Stirring blades 82 are respectively provided on the lower side of the outer arc surface of the vertical rod 81. The stirring blades 82 are all located inside the housing 1. The lifting plates 83 are respectively provided in the middle of the outer arc surface of the vertical rod 81. The lifting plates 83 are spaced apart from the stirring blades 82 of the same height. The mixing mechanism 8 also includes guide rods 84, connecting plates 85, mounting frames 86, fixing seats 87, and limiting rods 88. The guide rods 84 are slidably connected to the sliding grooves opened on the front and rear sides of the upper end of the housing 1. The lower end of each guide rod 84 is provided with a baffle. The upper ends of both guide rods 84 are connected to a... The lower end of the connecting plate 85 is fixedly connected, and the lower end of the connecting plate 85 is rotatably connected to the upper end of the upright 81. The upper end of the connecting plate 85 is provided with a mounting frame 86, and the middle of the upper end of the mounting frame 86 is provided with a fixed seat 87. The upper end of the fixed seat 87 is provided with a limit rod 88. Through the cooperation of the transmission plate 12 and the adjusting rod 16, during the rotation of the stirring fan blade 82, the upright 81 can drive the lifting plate 83 to perform vertical reciprocating motion, which replaces the traditional method of mixing circulating water and chemicals by using a propeller agitator. This further increases the contact area between circulating water and chemicals, reduces dead corners in the mixing process, ensures water quality balance, and also reduces the risk of biological pollution.

[0023] It also includes a control switch group 2, which is located at the right end of the housing 1. The input terminal of the control switch group 2 is electrically connected to an external power supply and can regulate the electrical components inside the equipment.

[0024] Among them: a motor 9 is installed in the middle of the upper end of the connecting plate 85. The motor 9 is located inside the mounting frame 86. The lower end of the output shaft of the motor 9 is fixedly connected to the upper end of the upright 81. The input end of the motor 9 is electrically connected to the output end of the control switch group 2. The motor 9 starts to run through the control switch group 2. The output shaft of the motor 9 drives the stirring fan blade 82 to rotate through the upright 81, thereby mixing the circulating water and chemicals.

[0025] The filter box 3 is located on the upper left side of the housing 1. A filter screen 4 is located on the upper inside the filter box 3. A water inlet pipe 5 is located in the water inlet on the upper front side of the filter box 3. A water inlet valve is connected in series in the middle of the water inlet pipe 5. The water inlet pipe 5 is located on the upper side of the filter box 3. The right end of the filter box 3 is connected to the left end of the housing 1 through a connecting pipe 17. When the water inlet valve is opened, circulating water is injected into the interior of the filter box 3 through the water inlet pipe 5. Then, the circulating water is filtered through the filter screen 4 to separate solid particles and impurities from the circulating water. The filtered circulating water then enters the interior of the housing 1 through the connecting pipe 17.

[0026] The filter box 3 has a vertical plate 10 on the upper left side, a mounting base 11 on the middle of the right side of the vertical plate 10, a transmission plate 12 rotatably connected to the right end of the mounting base 11, an adjustment groove on the middle of the front end of the transmission plate 12, a limit groove on the right side of the front end of the transmission plate 12, and a limit rod 88 located inside the limit groove. During the rotation of the transmission plate 12, the limit rod 88 slides inside the limit groove and rotates relative to the limit groove, so that the transmission plate 12 drives the fixed base 87 to perform vertical reciprocating motion through the limit rod 88.

[0027] The filter box 3 has a fixed plate 13 on the rear side of the upper end. A drive motor 14 is set in the middle of the front end of the fixed plate 13. A central wheel 15 is set at the front end of the output shaft of the drive motor 14. An adjusting rod 16 is set at the edge of the front end of the central wheel 15. The front end of the adjusting rod 16 is located inside the adjusting groove. The input end of the drive motor 14 is electrically connected to the output end of the control switch group 2. During the rotation of the upright 81, the drive motor 14 starts to run through the control switch group 2. The drive motor 14 drives the central wheel 15 to rotate. The central wheel 15 will drive the adjusting rod 16 to rotate around the axis of the central wheel 15. Since the axis of the adjusting rod 16 does not coincide with the axis of the central wheel 15, the adjusting rod 16 will have lateral and vertical displacements during the circumferential motion. This causes the adjusting rod 16 to slide and rotate relative to each other inside the adjusting groove. As the central wheel 15 rotates, the central wheel 15 drives the transmission plate 12 to perform vertical reciprocating motion through the adjusting rod 16.

[0028] The working principle of the power plant circulating water treatment system provided by this utility model is as follows: Before use, the inlet pipe 5 and the outlet pipe 6 are connected to the external pipeline. During the use of the power plant circulating water treatment system, the inlet valve is opened, and the circulating water is injected into the filter box 3 through the inlet pipe 5. Then, the circulating water is filtered through the filter screen 4 to separate solid particles and impurities from the circulating water. The filtered circulating water is connected to the pipe 17 and enters the tank 1. At this time, the feed valve is opened, and chemicals such as corrosion inhibitors, scale inhibitors, algaecides, and pH adjusters are added into the tank 1 through the feed pipe 7 to control the water quality and prevent corrosion of pipes and equipment, scale deposition, and microbial growth. Then, the motor 9 starts to run through the control switch group 2. The output shaft of the motor 9 drives the stirring fan blade 82 to rotate through the upright rod 81, thereby mixing the circulating water and chemicals. During the rotation of the upright rod 81, the drive motor 14 starts to run through the control switch group 2. The drive motor 14 drives the central wheel 15 to rotate. The central wheel 15 drives the adjusting rod 16 to rotate around the axis of the central wheel 15. Since the axes of the adjusting rod 16 and the central wheel 15 do not coincide, the adjusting rod 16 will experience lateral and vertical displacement during its circular motion. This causes the adjusting rod 16 to slide and rotate relative to each other within the adjusting groove. As the central wheel 15 rotates, it drives the transmission plate 12 to perform vertical reciprocating motion via the adjusting rod 16. At this time, the limiting rod 88 slides and rotates relative to the limiting groove within the limiting groove, thus causing the transmission plate 12 to reciprocate vertically. The moving plate 12 drives the fixed seat 87 to perform vertical reciprocating motion via the limiting rod 88. The fixed seat 87 drives the upright 81 to perform vertical reciprocating motion via the mounting frame 86. The upright 81 can drive the lifting plate 83 to perform vertical reciprocating motion. During the movement of the lifting plate 83, it can continuously agitate the circulating water and chemicals, thereby increasing the contact area between the circulating water and chemicals. After the circulating water is treated, the drain valve is opened, and the treated circulating water is discharged through the drain pipe 6.

[0029] It is worth noting that the motor 9 and drive motor 14 disclosed in the above embodiments can be selected as 5IK200A-AF, and the control switch group 2 is provided with control buttons corresponding to the motor 9 and drive motor 14 for controlling their switching.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A power plant circulating water treatment system, comprising a tank (1), an inlet port on the front side of the upper end of the tank (1) containing an inlet pipe (7), an inlet valve connected in series in the middle of the inlet pipe (7), and a drain pipe (6) on the lower side of the right end of the tank (1), an inlet port on the lower side of the right end of the tank (1) containing a drain valve connected in series in the middle of the drain pipe (6), characterized in that: It also includes a hybrid mechanism (8); Mixing mechanism (8): It includes a vertical rod (81), stirring blades (82) and lifting plate (83). The vertical rod (81) is slidably connected to a sliding hole in the middle of the top wall of the box (1). Stirring blades (82) are respectively provided on the lower side of the outer arc surface of the vertical rod (81). The stirring blades (82) are all located inside the box (1). The lifting plate (83) is respectively provided in the middle of the outer arc surface of the vertical rod (81). The lifting plate (83) is spaced apart from the stirring blades (82) of the same height. A filter box (3) is provided on the upper left side of the box (1). A filter screen (4) is provided on the upper inside of the filter box (3). A water inlet pipe (5) is provided in the water inlet on the upper front side of the filter box (3). A water inlet valve is connected in series in the middle of the water inlet pipe (5). The water inlet pipe (5) is located on the upper side of the filter box (3). The right end of the filter box (3) is connected to the left end of the box (1) through a connecting pipe (17). A vertical plate (10) is provided on the left side of the upper end of the filter box (3). A mounting base (11) is provided in the middle of the right end of the vertical plate (10). A transmission plate (12) is rotatably connected to the right end of the mounting base (11). An adjustment groove is provided in the middle of the front end of the transmission plate (12). A limit groove is provided on the right side of the front end of the transmission plate (12). A limit rod (88) is located inside the limit groove. A fixing plate (13) is provided on the rear side of the upper end of the filter box (3). A drive motor (14) is provided in the middle of the front end of the fixing plate (13). A center wheel (15) is provided at the front end of the output shaft of the drive motor (14). An adjusting rod (16) is provided at the edge of the front end of the center wheel (15). The front end of the adjusting rod (16) is located inside the adjusting groove. The input end of the drive motor (14) is electrically connected to the output end of the control switch group (2).

2. The power plant circulating water treatment system according to claim 1, characterized in that: It also includes a control switch group (2), which is located at the right end of the housing (1), and the input end of the control switch group (2) is electrically connected to an external power supply.

3. The power plant circulating water treatment system according to claim 2, characterized in that: The mixing mechanism (8) also includes a guide rod (84), a connecting plate (85), a mounting frame (86), a fixed seat (87), and a limiting rod (88). The guide rod (84) is slidably connected to the sliding grooves opened on the front and rear sides of the upper end of the box (1). The lower end of the guide rod (84) is provided with a baffle. The upper end of the two guide rods (84) is fixedly connected to the lower end of a connecting plate (85). The lower end of the connecting plate (85) is rotatably connected to the upper end of the upright (81). The upper end of the connecting plate (85) is provided with a mounting frame (86). The middle part of the upper end of the mounting frame (86) is provided with a fixed seat (87). The upper end of the fixed seat (87) is provided with a limiting rod (88).

4. The power plant circulating water treatment system according to claim 3, characterized in that: A motor (9) is provided in the middle of the upper end of the connecting plate (85). The motor (9) is located inside the mounting frame (86). The lower end of the output shaft of the motor (9) is fixedly connected to the upper end of the upright (81). The input end of the motor (9) is electrically connected to the output end of the control switch group (2).

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