Water supplementing device for power plant boiler

Abstract

The utility model belongs to the technical field of boiler water replenishing, and particularly relates to a water replenishing device for a power plant boiler, which comprises a machine body, a water inlet pipe arranged on the upper side of the machine body, an automatic feeding machine arranged on the upper side of the machine body, a water pump arranged at the bottom of the machine body, a water outlet end connected with a water conveying pipe, and a stirring mechanism arranged in the machine body. A partition plate is arranged in the middle of the machine body, a sewer pipe is arranged in the middle of the partition plate, and a filtering assembly is arranged on the lower side of the sewer pipe; according to the utility model, the electric telescopic rod is used for controlling the movement of the plugging plate, so that the dynamic filtration of water is realized, and when sediments on the filter plate need to be cleaned, the filter plate can automatically turn over, so that the cleaning is convenient, the filtering effect is ensured, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of boiler water supply technology, specifically relating to a water supply device for power plant boilers. Background Technology

[0002] When a boiler is running, water evaporates easily due to the high temperature. In order to ensure the normal operation of the boiler, it is usually necessary to replenish water to keep the water level in the boiler stable. An automatic water replenishment device is required to automatically replenish water to the boiler.

[0003] The prior art with patent number CN221906888U proposes a waste heat boiler water supply device, which uses a motor to drive the stirring shaft to rotate, which can mix the sodium carbonate solution added to the machine with the water in the machine, so that the magnesium ions and calcium ions in the water react with it to form precipitates, thereby reducing the content of magnesium ions and calcium ions in the water, and the precipitates are intercepted by the filter screen.

[0004] However, the above-mentioned technology uses a filter screen to intercept sediment, and the filter screen can be removed by unscrewing the installation pipe. This method requires removing the filter screen every time it is cleaned, which is very troublesome and inconvenient. Therefore, we have developed a water supply device for power plant boilers to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a water supply device for power plant boilers to solve the problems mentioned in the background art.

[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0007] A water supply device for a power plant boiler includes a body, an inlet pipe on the upper side of the body, an automatic feeder on the upper side of the body, a water pump at the bottom of the body, a water delivery pipe connected to the outlet of the water pump, a stirring mechanism inside the body, a partition in the middle of the body, a drain pipe in the middle of the partition, and a filter assembly below the drain pipe.

[0008] The filter assembly includes an electric telescopic rod mounted on the side wall of the body. The output shaft of the electric telescopic rod extends into the body and is connected to a sealing plate. The sealing plate abuts against the bottom of the drain pipe. A through groove matching the drain pipe is opened on one side of the sealing plate. A filter plate matching the through groove is rotatably mounted on the lower side of the sealing plate via a rotating shaft. A sliding groove is opened inside the sealing plate. A sliding plate is slidably mounted in the sliding groove. A rack is connected to the lower left end of the sliding plate. The rotating shaft extends into the sliding groove and is connected to a gear that meshes with the rack. A pushing block is fixed to the upper right end of the sliding plate. The pushing block is machined with an inclined surface. A top block matching the pushing block is fixed to the side wall of the drain pipe. A spring is provided between the lower side of the sliding plate and the sliding groove.

[0009] A receiving plate is provided on the left side of the machine body, and the machine body has a slot that matches the position of the receiving plate.

[0010] The partition is cone-shaped, and the drain pipe is located at the bottom of the partition.

[0011] The stirring mechanism includes a stirring shaft rotatably disposed in the middle of the machine body, a plurality of stirring auxiliary shafts disposed on the side wall of the stirring shaft, a first conical tooth fixed at the upper end of the stirring shaft, a motor mounted on the upper end of the machine body, and a second conical tooth meshing with the first conical tooth connected to the output shaft of the motor.

[0012] A mounting frame is fixed on the upper side of the middle part of the machine body. The automatic feeder is mounted on the mounting frame. A liquid inlet groove is opened on the upper side of the stirring shaft. Two guide pipes are connected to the lower side of the liquid inlet groove. The discharge end of the automatic feeder extends into the liquid inlet groove.

[0013] The slide is vertically mounted with a fixed rod, and the slide plate is slidably connected to the fixed rod.

[0014] This invention uses an automatic feeder to add sodium carbonate solution, combined with the mixing action of a stirring mechanism, to effectively remove magnesium and calcium ions from the water, reduce scale formation, and improve the quality of boiler water.

[0015] This invention utilizes an electric telescopic rod to control the movement of the sealing plate, achieving dynamic water filtration. When it is necessary to clean the sediment on the filter plate, the filter plate can automatically flip over for easy cleaning, ensuring the filtration effect and extending the service life of the equipment.

[0016] The inclined filter plate design of this utility model allows the sediment to slide naturally onto the receiving plate and be discharged from the machine body through the slot, reducing the difficulty of manual cleaning. At the same time, the linkage mechanism of the slide plate and the rack and pinion also makes the flipping operation of the filter plate simple and quick. Attached Figure Description

[0017] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of an embodiment of the water supply device for a power plant boiler according to the present invention;

[0019] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of a water supply device for a power plant boiler according to the present invention;

[0020] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0021] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0022] Figure 5 This is a cross-sectional structural diagram of the sealing plate of this utility model.

[0023] The symbols for the main components are explained below:

[0024] 1. Body, 11. Water inlet pipe, 12. Automatic feeder, 13. Water pump, 14. Partition plate, 15. Drain pipe, 151. Top block, 2. Electric telescopic rod, 21. Sealing plate, 22. Through groove, 23. Filter plate, 24. Slide groove, 241. Fixing rod, 25. Slide plate, 26. Rack, 27. Gear, 28. Push block, 29. Spring, 3. Receiving plate, 4. Stirring shaft, 41. Stirring sub-shaft, 42. First conical tooth, 43. Motor, 44. Second conical tooth, 45. Mounting bracket, 46. Liquid inlet tank, 47. Guide pipe. Detailed Implementation

[0025] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] like Figure 1-5 As shown, a water supply device for a power plant boiler according to this utility model includes a body 1, an inlet pipe 11 on the upper side of the body 1, an automatic feeder 12 on the upper side of the body 1, a water pump 13 at the bottom of the body 1, a water supply pipe connected to the outlet of the water pump 13, a stirring mechanism inside the body 1, a partition 14 in the middle of the body 1, a drain pipe 15 in the middle of the partition 14, and a filter assembly on the lower side of the drain pipe 15.

[0027] The filter assembly includes an electric telescopic rod 2 mounted on the side wall of the body 1. The output shaft of the electric telescopic rod 2 extends into the body 1 and is connected to a sealing plate 21. The sealing plate 21 abuts against the bottom of the drain pipe 15. A through groove 22 matching the drain pipe 15 is opened on one side of the sealing plate 21. A filter plate 23 matching the through groove 22 is rotatably mounted on the lower side of the sealing plate 21 via a rotating shaft. A sliding groove 24 is opened in the sealing plate 21. A sliding plate 25 is slidably mounted in the sliding groove 24. A rack 26 is connected to the lower left end of the sliding plate 25. A gear 27 meshing with the rack 26 is connected to the rotating shaft in the sliding groove 24. A push block 28 is fixed to the upper right end of the sliding plate 25. The push block 28 is machined with an inclined surface. A top block 151 matching the push block 28 is fixed to the side wall of the drain pipe 15. A spring 29 is provided between the lower side of the sliding plate 25 and the sliding groove 24.

[0028] A receiving plate 3 is provided on the left side of the machine body 1, and the machine body 1 has a slot that matches the position of the receiving plate 3.

[0029] The automatic feeder 12 stores sodium carbonate solution. When in use, the electric telescopic rod 2 is activated to move the sealing plate 21 to the left, so that the through channel 22 and the drain pipe 15 are misaligned. The sealing plate 21 blocks the drain pipe 15, and then clean water is delivered into the machine body 1 through the water inlet pipe 11. At this time, the clean water will be temporarily stored on the upper side of the machine body 1. The sodium carbonate solution is added into the machine body 1 through the automatic feeder 12, and then stirred by the stirring mechanism to accelerate the mixing of sodium carbonate solution and water. Magnesium ions and calcium ions in the water will precipitate.

[0030] Then, start the electric telescopic rod 2 to move the sealing plate 21 to the right, so that the through groove 22 and the drain pipe 15 are aligned with each other. The water on the upper side of the machine body 1 will flow downward. The set filter plate 23 can intercept the sediment in the water. After the water flows to the bottom of the machine body 1, start the water pump 13 to input the treated water into the boiler through the water supply pipe.

[0031] When the electric telescopic rod 2 moves the sealing plate 21 to the left, causing the channel 22 and the drain pipe 15 to be misaligned, the pushing block 28 on the upper right side of the slide plate 25 will abut against the top block 151, pushing it downward. This causes the slide plate 25 to slide downward in the channel 24, causing the rack 26 to move downward and the gear 27 to rotate. This causes the filter plate 23 to flip downward through the shaft. The filter plate 23 will remain tilted downward, and the sediment intercepted by the filter plate 23 will fall downward onto the receiving plate 3 and be discharged from the machine through the slot. If there is sediment on the surface of the filter plate 23, the operator only needs to use a brush to clean the tilted filter plate 23. The operation is very simple. After the sealing plate 21 moves to the right, aligning the channel 22 and the drain pipe 15, the pushing block 28 will leave the top block 151. The spring force of the spring 29 will push the slide plate 25 upward to reset, causing the filter plate 23 to flip upward and be located under the channel 22.

[0032] The partition 14 is conical in shape, and the drain pipe 15 is located at the bottom of the partition 14; the arrangement of the partition 14 facilitates the flow of water from the upper side of the body 1 to the bottom.

[0033] The stirring mechanism includes a stirring shaft 4 rotatably disposed in the middle of the machine body 1. Several secondary stirring shafts 41 are disposed on the side wall of the stirring shaft 4. A first conical tooth 42 is fixed at the upper end of the stirring shaft 4. A motor 43 is installed at the upper end of the machine body 1. The output shaft of the motor 43 is connected to a second conical tooth 44 that meshes with the first conical tooth 42. The second conical tooth 44 is driven to rotate by the motor 43. Through the meshing of the second conical tooth 44 with the first conical tooth 42, the stirring shaft 4 can be driven to rotate. The stirring shaft 4 rotates in the machine body 1 through the several secondary stirring shafts 41, which can mix the solution.

[0034] A mounting bracket 45 is fixed on the upper side of the middle part of the machine body 1. The automatic feeder 12 is mounted on the mounting bracket 45. A liquid inlet trough 46 is opened on the upper side of the stirring shaft 4. Two guide pipes 47 are connected to the lower side of the liquid inlet trough 46. The discharge end of the automatic feeder 12 extends into the liquid inlet trough 46. When the discharge end of the automatic feeder 12 extends into the liquid inlet trough 46, the sodium carbonate solution can be added into the liquid inlet trough 46 and finally transported to both sides through the two guide pipes 47. When adding materials, the starting motor 43 can drive the stirring shaft 4 to rotate, so that the solution can be evenly distributed on the upper side of the water, thereby improving the mixing rate of sodium carbonate solution and water.

[0035] A fixed rod 241 is vertically installed on the slide 24, and the slide plate 25 is slidably connected to the fixed rod 241. The slidable connection between the slide plate 25 and the fixed rod 241 ensures that the slide plate 25 can only slide up and down, and the movement is more stable.

[0036] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A water supply device for a power plant boiler, comprising a body, an inlet pipe on the upper side of the body, an automatic feeder on the upper side of the body, a water pump at the bottom of the body, and a water delivery pipe connected to the outlet of the water pump, characterized in that: The machine body is equipped with a stirring mechanism, the machine body has a partition in the middle, the partition has a drain pipe in the middle, and the drain pipe has a filter assembly on the lower side. The filter assembly includes an electric telescopic rod mounted on the side wall of the body. The output shaft of the electric telescopic rod extends into the body and is connected to a sealing plate. The sealing plate abuts against the bottom of the drain pipe. A through groove matching the drain pipe is opened on one side of the sealing plate. A filter plate matching the through groove is rotatably mounted on the lower side of the sealing plate via a rotating shaft. A sliding groove is opened inside the sealing plate. A sliding plate is slidably mounted in the sliding groove. A rack is connected to the lower left end of the sliding plate. The rotating shaft extends into the sliding groove and is connected to a gear that meshes with the rack. A pushing block is fixed to the upper right end of the sliding plate. The pushing block is machined with an inclined surface. A top block matching the pushing block is fixed to the side wall of the drain pipe. A spring is provided between the lower side of the sliding plate and the sliding groove. A receiving plate is provided on the left side of the machine body, and the machine body has a slot that matches the position of the receiving plate.

2. A water supply device for a boiler of a power plant according to claim 1, characterized in that: The partition is cone-shaped, and the drain pipe is located at the bottom of the partition.

3. A water supply device for a boiler of a power plant according to claim 1, characterized in that: The stirring mechanism includes a stirring shaft rotatably disposed in the middle of the machine body, a plurality of stirring auxiliary shafts disposed on the side wall of the stirring shaft, a first conical tooth fixed at the upper end of the stirring shaft, a motor mounted on the upper end of the machine body, and a second conical tooth meshing with the first conical tooth connected to the output shaft of the motor.

4. A water supply device for a boiler of a power plant according to claim 3, characterized in that: A mounting frame is fixed on the upper side of the middle part of the machine body. The automatic feeder is mounted on the mounting frame. A liquid inlet groove is opened on the upper side of the stirring shaft. Two guide pipes are connected to the lower side of the liquid inlet groove. The discharge end of the automatic feeder extends into the liquid inlet groove.

5. The water supply device for a boiler of a power plant according to claim 1, characterized by: The slide is vertically mounted with a fixed rod, and the slide plate is slidably connected to the fixed rod.

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