Water pretreatment system for boiler of thermal power plant

Abstract

The utility model discloses a thermal power plant boiler water pretreatment system which comprises a bottom plate, the top of the bottom plate is fixedly provided with a treatment box, the top of the treatment box is fixedly provided with a closed box, the top of the treatment box is rotatably provided with a circular shaft located in the closed box, and the top of the interior of the treatment box is rotatably provided with a rotating rod; stirring rods are fixedly mounted on the surface of the rotating rod at equal intervals in a surrounding manner, and the top of the rotating rod penetrates through the treatment box and is fixedly connected with the bottom of a circular shaft. According to the water pretreatment system for the boiler of the thermal power plant, in the daily use process, an operator puts water needing to be pretreated into the treatment box through a water inlet pipe, then puts a water purifying agent into the treatment box through a chemical inlet pipe and then starts a stirring motor, the stirring motor runs to enable a rotating shaft to rotate, and the stirring motor is driven to rotate; and at the moment, the belt can drive a circular shaft to rotate, and then a rotating rod is driven to rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a water pretreatment system for boilers in thermal power plants. Background Art

[0002] A boiler is an energy conversion device. The energy input to the boiler includes chemical energy and electrical energy in the fuel. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. Hydropower plants often use boilers to treat water, so a thermal power plant boiler water pretreatment system is needed.

[0003] When operators pre-treat boiler water in hydropower plants, they often use the corresponding boiler water pre-treatment system of thermal power plants. Although the existing system can achieve the purpose of pre-treating water, the water contains a large amount of impurities during actual use. If it is not treated, the water quality may be reduced. When treating water, filtering is often used, but the filter plate needs to be replaced after a period of use, otherwise the effect of water treatment will be reduced. However, the filtering mechanism is mostly fixed with bolts, which is not convenient for daily observation and may lead to reduced filtering effect. Utility Model Content

[0004] The utility model aims to provide a thermal power plant boiler water pretreatment system to solve the problem proposed in the above background technology that when operators pretreat the water used for the boiler of a hydropower plant, they often use the corresponding thermal power plant boiler water pretreatment system. Although the existing system can achieve the purpose of pretreating water, the water contains a large amount of impurities during actual use. If it is not treated, the water quality may be reduced. When treating water, filtering is often used, but the filter plate needs to be replaced after a period of use, otherwise the effect of water treatment will be reduced. However, the filtering mechanism is mostly fixed with bolts, which is not convenient for daily observation and may lead to reduced filtering effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a boiler water pretreatment system for a thermal power plant, comprising a base plate, a treatment box is fixedly installed on the top of the base plate, a closed box is fixedly installed on the top of the treatment box, a circular shaft located inside the closed box is rotatably installed on the top of the treatment box, a rotating rod is rotatably installed on the top of the inner top of the treatment box, a stirring rod is fixedly installed around the surface of the rotating rod at equal distances, the top of the rotating rod passes through the treatment box and is fixedly connected to the bottom of the circular shaft, a rotating shaft is rotatably installed on the inner top of the closed box, a belt is movably sleeved on the surface of the rotating shaft and the surface of the circular shaft, a stirring motor is fixedly installed on the top of the closed box, the output end of the stirring motor passes through the closed box and is fixedly connected to the top of the rotating shaft, a drug inlet pipe is fixedly installed on the top of the treatment box, the bottom of the drug inlet pipe passes through the treatment box and extends to the inner surface of the treatment box, a water inlet pipe is fixedly installed on one side of the treatment box, and one side of the water inlet pipe passes through the treatment box and extends to the inner surface of the treatment box.

[0006] Preferably, a filter box located on the right side of the treatment box is movably installed on the top of the base plate, and filter plates are movably installed on both sides of the interior of the filter box, a water outlet pipe is fixedly installed on one side of the filter box, one side of the water outlet pipe penetrates the filter box and extends to the inner surface of the filter box, a round pipe is fixedly installed on the other side of the treatment box, one side of the round pipe penetrates the treatment box and extends to the inner surface of the treatment box, a connecting pipe is fixedly installed on the other side of the filter box, and one side of the connecting pipe penetrates the filter box and extends to the inner surface of the filter box.

[0007] Preferably, flanges are fixedly sleeved on the surfaces of the circular tube and the connecting tube, a bolt is rotatably mounted on one side of the flange, and one side of the bolt passes through the flange and extends to the left side of the flange.

[0008] Preferably, a vertical plate located on the back of the filter box is fixedly installed on the top of the bottom plate, a strip groove is opened at one end of the vertical plate, a screw rod is rotatably installed inside the strip groove, a slider is threadedly sleeved on the surface of the screw rod, and a cover plate is fixedly installed at one end of the slider.

[0009] Preferably, a lifting motor is fixedly mounted on the top of the vertical plate, and an output end of the lifting motor passes through the vertical plate and is fixedly connected to the top of the screw rod.

[0010] Preferably, brackets are fixedly installed at the four corners of the bottom of the base plate, the number of the brackets is four, and the four brackets have the same size.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the daily use of this thermal power plant boiler water pretreatment system, the operator places the water to be pretreated inside the treatment box through the water inlet pipe, and then places the water purifier inside the treatment box through the drug inlet pipe, and then starts the stirring motor. The operation of the stirring motor will cause the rotating shaft to rotate, and then drive the belt to rotate. At this time, the belt will drive the circular shaft to rotate, and then drive the rotating rod to rotate, thereby driving the stirring rod to rotate, so that the water purifier and water can be fully mixed, thereby improving its purification effect.

[0013] In the daily use of the boiler water pretreatment system for a thermal power plant, the operator starts the lifting motor, and the operation of the lifting motor causes the screw rod to rotate, thereby driving the slider to slide inside the strip groove. At this time, the slider drives the cover plate to slide and makes the filter box open, so that the filter plate inside the filter box can be inspected and replaced conveniently to ensure the pretreatment effect on the boiler water of the thermal power plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model;

[0015] Figure 2 It is a front cross-sectional view of the utility model;

[0016] Figure 3 It is a side sectional view of the utility model;

[0017] Figure 4 It is a schematic diagram of the top structure of the bottom plate of the utility model.

[0018] In the figure: 1. bottom plate; 2. treatment box; 3. closing box; 4. round shaft; 5. rotating rod; 6. stirring rod; 7. rotating shaft; 8. belt; 9. stirring motor; 10. medicine inlet pipe; 11. water inlet pipe; 12. filter box; 13. vertical plate; 14. strip groove; 15. screw rod; 16. slider; 17. cover plate; 18. filter plate; 19. lifting motor; 20. water outlet pipe; 21. round pipe; 22. connecting pipe; 23. flange; 24. bolt; 25. bracket. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4The utility model provides a technical solution: a boiler water pretreatment system for a thermal power plant, comprising a bottom plate 1, a treatment box 2 is fixedly installed on the top of the bottom plate 1, a closed box 3 is fixedly installed on the top of the treatment box 2, a round shaft 4 located inside the closed box 3 is rotatably installed on the top of the treatment box 2, a rotating rod 5 is rotatably installed on the top of the inside of the treatment box 2, and a stirring rod 6 is fixedly installed around the surface of the rotating rod 5 at equal distances, the top of the rotating rod 5 passes through the treatment box 2 and is fixedly connected to the bottom of the round shaft 4, and the round shaft 4 will drive the rotating rod 5 to rotate when rotating, thereby driving the stirring rod 6 to rotate By rotating, the water purifier and the water to be treated can be mixed through the stirring rod 6. A rotating shaft 7 is rotatably installed on the top of the inner part of the closed box 3. A belt 8 is movably sleeved on the surface of the rotating shaft 7 and the circular shaft 4. When the rotating shaft 7 rotates, the belt 8 will be driven to rotate on its surface. A stirring motor 9 is fixedly installed on the top of the closed box 3. The output end of the stirring motor 9 passes through the closed box 3 and is fixedly connected to the top of the rotating shaft 7. When the stirring motor 9 is running, the rotating shaft 7 will rotate. A drug inlet pipe 10 is fixedly installed on the top of the treatment box 2. The bottom of the drug inlet pipe 10 passes through the treatment box 2 and extends To the inner surface of the treatment box 2, the water purifier can be placed inside the treatment box 2 through the medicine inlet pipe 10, a water inlet pipe 11 is fixedly installed on one side of the treatment box 2, and one side of the water inlet pipe 11 passes through the treatment box 2 and extends to the inner surface of the treatment box 2, and the pre-treated water can be placed inside the treatment box 2 through the water inlet pipe 11, and a filter box 12 located on the right side of the treatment box 2 is movably installed on the top of the bottom plate 1, and filter plates 18 are movably installed on both sides of the inside of the filter box 12, and the filter plate 18 can filter the water treated by the treatment box 2 again, and a filter box 12 is fixedly installed on one side of the filter box 12. An outlet pipe 20, one side of which penetrates the filter box 12 and extends to the inner surface of the filter box 12. The treated water will eventually be discharged through the outlet pipe 20. A circular pipe 21 is fixedly installed on the other side of the treatment box 2. One side of the circular pipe 21 penetrates the treatment box 2 and extends to the inner surface of the treatment box 2. A connecting pipe 22 is fixedly installed on the other side of the filter box 12. One side of the connecting pipe 22 penetrates the filter box 12 and extends to the inner surface of the filter box 12. The treated water inside the treatment box 2 will enter the interior of the filter box 12 through the circular pipe 21 and the connecting pipe 22.

[0021] The surfaces of the round tube 21 and the connecting tube 22 are fixedly sleeved with a flange 23, and a bolt 24 is rotatably installed on one side of the flange 23, and one side of the bolt 24 penetrates the flange 23 and extends to the left side of the flange 23. The bolt 24 is turned and screwed into the inside of the flange 23 to connect the round tube 21 and the connecting tube 22, thereby connecting the treatment box 2 and the filter box 12. The top of the bottom plate 1 is fixedly installed with a vertical plate 13 located on the back of the filter box 12, and one end of the vertical plate 13 is provided with a strip groove 14, and a screw rod 15 is rotatably installed inside the strip groove 14, and a slider 16 is threadedly sleeved on the surface of the screw rod 15, and A cover plate 17 is fixedly installed at one end of the slider 16. When the screw rod 15 rotates, it will drive the slider 16 to slide inside the strip groove 14. At the same time, the slider 16 will drive the cover plate 17 to slide synchronously. A lifting motor 19 is fixedly installed on the top of the vertical plate 13, and the output end of the lifting motor 19 passes through the vertical plate 13 and is fixedly connected to the top of the screw rod 15. When the lifting motor 19 is running, the screw rod 15 will rotate. Brackets 25 are fixedly installed at the four corners of the bottom of the base plate 1. There are four brackets 25, and the four brackets 25 have the same size. The design of the brackets 25 can make it more stable.

[0022] Working principle: When it is necessary to pre-treat the boiler of a hydropower plant, the operator first presses the two flanges 23 together, then turns the bolt 24, and then screws it into the inside of the bolt 24 to connect the treatment box 2 with the filter box 12. Then, the water to be pre-treated is placed in the treatment box 2 through the water inlet pipe 11, and then the water purifier is placed in the treatment box 2 through the drug inlet pipe 10. Then, the stirring motor 9 is started. The operation of the stirring motor 9 will cause the rotating shaft 7 to rotate, and then drive the belt 8 to rotate. At this time, the belt 8 will drive the circular shaft 4 to rotate, and then drive the rotating rod 5 to rotate. This drives the stirring rod 6 to rotate, so that the water purifier and water can be fully mixed. Secondly, the treated water will enter the interior of the filter box 12 through the circular tube 21 and the connecting tube 22, and will be discharged from the outlet pipe 20 after double filtration by the filter plate 18. Finally, the operator starts the lifting motor 19. The operation of the lifting motor 19 will cause the screw rod 15 to rotate, thereby driving the slider 16 to slide inside the strip groove 14. At this time, the slider 16 will drive the cover plate 17 to slide and make the filter box 12 in an open state, so that the filter plate 18 inside the filter box 12 can be checked, which is convenient for replacement.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A boiler water pretreatment system for a thermal power plant, comprising a bottom plate (1), characterized in that: A processing box (2) is fixedly mounted on the top of the bottom plate (1), a closed box (3) is fixedly mounted on the top of the processing box (2), a circular shaft (4) located inside the closed box (3) is rotatably mounted on the top of the processing box (2), a rotating rod (5) is rotatably mounted on the top of the interior of the processing box (2), stirring rods (6) are fixedly mounted on the surface of the rotating rod (5) at equal distances, the top of the rotating rod (5) passes through the processing box (2) and is fixedly connected to the bottom of the circular shaft (4), a rotating shaft (7) is rotatably mounted on the top of the interior of the closed box (3), and the rotating shaft (7) is connected to the circular shaft (4) in a rotatable manner. A belt (8) is movably sleeved on the surface of the shaft (4); a stirring motor (9) is fixedly mounted on the top of the closed box (3); the output end of the stirring motor (9) passes through the closed box (3) and is fixedly connected to the top of the rotating shaft (7); a drug inlet pipe (10) is fixedly mounted on the top of the processing box (2); the bottom of the drug inlet pipe (10) passes through the processing box (2) and extends to the inner surface of the processing box (2); a water inlet pipe (11) is fixedly mounted on one side of the processing box (2); and one side of the water inlet pipe (11) passes through the processing box (2) and extends to the inner surface of the processing box (2).

2. A thermal power plant boiler water pretreatment system according to claim 1, characterized in that: A filter box (12) is movably mounted on the top of the bottom plate (1) and is located on the right side of the treatment box (2). Filter plates (18) are movably mounted on both sides of the inside of the filter box (12). A water outlet pipe (20) is fixedly mounted on one side of the filter box (12). One side of the water outlet pipe (20) penetrates the filter box (12) and extends to the inner surface of the filter box (12). A round pipe (21) is fixedly mounted on the other side of the treatment box (2). One side of the round pipe (21) penetrates the treatment box (2) and extends to the inner surface of the treatment box (2). A connecting pipe (22) is fixedly mounted on the other side of the filter box (12). One side of the connecting pipe (22) penetrates the filter box (12) and extends to the inner surface of the filter box (12).

3. A thermal power plant boiler water pretreatment system according to claim 2, characterized in that: The surfaces of the circular tube (21) and the connecting tube (22) are both fixedly sleeved with flanges (23), one side of the flange (23) is rotatably mounted with bolts (24), and one side of the bolts (24) penetrates the flange (23) and extends to the left side of the flange (23).

4. A thermal power plant boiler water pretreatment system according to claim 1, characterized in that: A vertical plate (13) located at the back of the filter box (12) is fixedly mounted on the top of the bottom plate (1), one end of the vertical plate (13) is provided with a strip groove (14), a screw rod (15) is rotatably mounted inside the strip groove (14), a sliding block (16) is threadedly sleeved on the surface of the screw rod (15), and a cover plate (17) is fixedly mounted on one end of the sliding block (16).

5. A thermal power plant boiler water pretreatment system according to claim 4, characterized in that: A lifting motor (19) is fixedly mounted on the top of the vertical plate (13), and an output end of the lifting motor (19) passes through the vertical plate (13) and is fixedly connected to the top of the screw rod (15).

6. A thermal power plant boiler water pretreatment system according to claim 1, characterized in that: Brackets (25) are fixedly mounted at the four corners of the bottom of the base plate (1), the number of the brackets (25) is four, and the four brackets (25) have the same size.

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