Thermal power generation device

Abstract

The utility model discloses a thermal power generation device, which relates to the technical field of thermal power generation and comprises a base, a combustion boiler is fixedly mounted on one side of the top of the base, a steam turbine unit is fixedly mounted on the top of the combustion boiler, and a support frame is fixedly mounted in the middle of the top of the base. By adopting the structure, coal is fed into the tank body through the feeding butterfly valve, the second motor is started to drive the rotating shaft and the crushing rod to rotate so as to crush the coal, qualified coal is discharged into the bottom of the tank body through meshes of the filter screen cover, unqualified coal is continuously crushed, and large particles are accumulated at the bottom of the boiler during the period. The rotary shaft can further drive the support and the smashing roller to conduct further smashing, efficiency is improved, smashed coal falls to the bottom, the combustion fan can convey the smashed coal to the combustion boiler for combustion power generation, the filter screen cover and the smashing assembly are matched, continuous smashing and screening can be achieved, the effect is ensured, impurities are prevented from blocking the conveying pipe, and use stability and combustion efficiency are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal power generation, in particular to a thermal power generation device. Background Art

[0002] Thermal power generation is a complex and important system, which mainly includes core equipment such as boilers and steam turbines. The boiler is responsible for transferring the heat energy generated by fuel combustion to the working medium water, converting it into high-temperature and high-pressure steam. The steam turbine receives steam from the boiler and uses the energy of steam to drive its impeller to rotate, realizing the conversion of thermal energy into mechanical energy. The generator is connected to the steam turbine to further convert the mechanical energy generated by the rotation of the steam turbine into electrical energy.

[0003] A thermal power generation equipment with full combustion, with the publication number of "CN217131327U", includes a thermal power generation equipment body, and the thermal power generation equipment body includes a combustion system. The utility model installs a coal crushing and feeding device, and feeds coal blocks into a coal storage tank from a coal block feeding port, and starts the motor to rotate the rotating rod. The crushing and grinding installation support rod plays the role of fixing the grinding ring and the crushing rod to the rotating rod. The crushing rod is fixed in the middle of the crushing and grinding installation support rod by a fixing bolt. As the rotating rod rotates, the crushing rod hits and crushes the coal block. The grinding ring is fixed to the crushing and grinding installation support rod by a spring column, and the spring column plays the role of buffering and shock absorption. The metal grinding balls are fixed to each other on the outer surface of the grinding ring and the inner surface of the coal storage tank by connecting arc rods to contact the coal block to grind it into coarse coal powder for full combustion.

[0004] During use, the above-mentioned device uses a rotating plate to drive the crushing rod to rotate to crush the coal. However, in its specific application process, it lacks a filtering structure. When the coal enters the interior of the coal storage tank, it cannot retain the coal at the position of the crushing rod. The coal will fall quickly after being squeezed by the crushing rod, and the crushing rod obviously cannot crush the coal completely at one time. The crushed coal often still has a large number of large particles of impurities, and it is obvious that it cannot be crushed again. It can be seen that its overall crushing capacity is limited. Therefore, it is necessary to improve the design of the existing technical means. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a thermal power generation device to solve the problems raised by the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A thermal power generation device comprises a base, a combustion boiler is fixedly installed on one side of the top of the base, a steam turbine unit is fixedly installed on the top of the combustion boiler, a support frame is fixedly installed in the middle of the top of the base, a feeding mechanism is fixedly installed on the top of the support frame, the output end of the feeding mechanism is connected to the input end of the combustion boiler, a combustion-supporting fan is fixedly installed on the side of the top of the base away from the combustion boiler, and the output end of the combustion-supporting fan is connected to the combustion boiler;

[0008] The feeding mechanism includes a tank body and a filter screen cover, a driving assembly is fixedly installed on the back of the tank body, a top cover is fixedly installed on the top of the driving assembly, the top cover covers the top of the tank body, the top cover seals the tank body, a crushing assembly is movably installed on the middle of the bottom of the top cover, the filter screen cover is fixedly installed on the inner side of the tank body, the filter screen cover is sleeved on the outer side of the crushing assembly, a conveying pipe is fixedly installed on the bottom of the tank body, one end of the conveying pipe is connected to the combustion-supporting fan, and the other end of the conveying pipe is connected to the combustion boiler.

[0009] As a preferred technical solution, a discharge butterfly valve is fixedly installed on one side of the bottom of the filter screen cover, a discharge pipe is fixedly installed on the output end of the discharge butterfly valve, and the output end of the discharge pipe passes through one side of the bottom of the tank body.

[0010] As a preferred technical solution, a feed butterfly valve is fixedly connected to one side of the top of the top cover, a feed hopper is fixedly installed at the top input end of the feed butterfly valve, and the bottom of the feed butterfly valve is connected to the inner side of the filter screen cover.

[0011] As a preferred technical solution, the driving assembly includes a vertical rail, which is fixedly installed in the middle of the back side of the tank body, and a first motor is fixedly installed at the bottom of the vertical rail. The output end of the first motor passes through the bottom of the vertical rail and is fixedly installed with a lead screw, and the outer surface of the lead screw is threadedly connected with a sliding rod, and the outer end of the sliding rod is fixedly connected to the top cover.

[0012] As a preferred technical solution, the crushing assembly includes a second motor, which is fixedly installed in the middle of the top of the top cover. The output end of the second motor passes through the top cover and is fixedly installed with a rotating shaft, and crushing rods are fixedly installed on the outer surface of the rotating shaft at equal intervals.

[0013] As a preferred technical solution, brackets are fixedly installed at equal intervals on the lower end of the rotating shaft, and the bottoms of the brackets are rotatably connected to crushing rollers, and the bottoms of the crushing rollers are fitted and connected to the bottom of the filter screen cover.

[0014] As a preferred technical solution, the upper end of the filter screen is cylindrical, the lower end of the filter screen is conical, the crushing roller layer is inclined, and the crushing roller and the inclined part of the lower end of the filter screen are parallel.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] First, this equipment is equipped with a feeding mechanism. Coal is added to the tank body through the feeding butterfly valve. The second motor is started to drive the rotating shaft and the crushing rod to rotate to crush the coal. Qualified coal is discharged into the bottom of the tank through the mesh of the filter cover, and unqualified coal continues to be crushed. During this period, large particles accumulate at the bottom of the boiler. The rotating shaft can also drive the bracket and the crushing roller to further crush and improve efficiency. The crushed coal falls to the bottom, and the combustion-supporting fan can send it to the combustion boiler for combustion and power generation. The device uses a filter cover and a crushing component to cooperate, which can continuously crush and screen to ensure the effect, avoid impurities blocking the conveying pipe, and improve the stability of use and combustion efficiency.

[0017] Second, the equipment is provided with a driving assembly. When cleaning is required, the discharge butterfly valve is opened to discharge the uncrushed coal to the outside of the tank through the discharge pipe. Then the first motor is started to drive the screw to rotate, thereby driving the slide bar to slide in the vertical rail to achieve the up and down displacement of the top cover. When cleaning, the top cover and its internal crushing assembly can be pulled out of the filter screen cover, which is convenient for cleaning and maintenance of the crushing assembly and leaves the top of the filter screen cover open, which is conducive to its internal cleaning and maintenance. This design greatly improves the convenience of overall cleaning, maintenance and overhaul of the device, while also improving the overall performance and convenience of the device and enhancing the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the utility model when viewed from above;

[0020] Figure 3 It is a schematic diagram of the internal structure of the tank body of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the crushing component of the utility model.

[0022] Figure numerals: 1. base; 2. combustion boiler; 3. steam turbine unit; 4. support frame; 5. feeding mechanism; 51. tank body; 52. filter screen; 53. drive assembly; 531. vertical rail; 532. first motor; 533. screw rod; 534. slide rod; 54. top cover; 55. crushing assembly; 551. second motor; 552. rotating shaft; 553. crushing rod; 554. bracket; 555. crushing roller; 56. conveying pipe; 57. discharge butterfly valve; 58. discharge pipe; 59. feed butterfly valve; 6. combustion-supporting fan. DETAILED DESCRIPTION

[0023] Example

[0024] refer to Figures 1 to 4 A thermal power generation device described in this embodiment includes a base 1, a combustion boiler 2 is fixedly installed on one side of the top of the base 1, a steam turbine unit 3 is fixedly installed on the top of the combustion boiler 2, a support frame 4 is fixedly installed in the middle of the top of the base 1, a feeding mechanism 5 is fixedly installed on the top of the support frame 4, the output end of the feeding mechanism 5 is connected to the input end of the combustion boiler 2, a combustion-supporting fan 6 is fixedly installed on the side of the top of the base 1 away from the combustion boiler 2, and the output end of the combustion-supporting fan 6 is connected to the combustion boiler 2;

[0025] The feeding mechanism 5 includes a tank body 51 and a filter screen cover 52. A driving assembly 53 is fixedly installed on the back of the tank body 51. A top cover 54 is fixedly installed on the top of the driving assembly 53. The top cover 54 covers the top of the tank body 51. The top cover 54 seals the tank body 51. A crushing assembly 55 is movably installed in the middle of the bottom of the top cover 54. The filter screen cover 52 is fixedly installed on the inner side of the tank body 51. The filter screen cover 52 is sleeved on the outer side of the crushing assembly 55. A delivery pipe 56 is fixedly installed on the bottom of the tank body 51. One end of the delivery pipe 56 is connected to the combustion-supporting fan 6, and the other end of the delivery pipe 56 is connected to the combustion boiler 2. The tank body 51 in the feeding mechanism 5 , filter screen cover 52, drive assembly 53, top cover 54 and crushing assembly 55 cooperate with each other, which can not only realize efficient crushing and screening of coal, ensure the crushing effect, avoid clogging of large particles of impurities, and improve combustion efficiency and stability, but also can conveniently clean, maintain and repair the crushing assembly 55 and the filter screen cover 52 through the drive assembly 53, greatly improving the convenience and performance of the device as a whole; at the same time, the combustion-supporting fan 6 can ensure that the coal is smoothly transported to the combustion boiler 2 to assist in power generation using the steam turbine unit 3. The design of the entire device is compact and reasonable, and the synergistic effect of various parts effectively guarantees the smooth progress and good operation of thermal power generation.

[0026] refer to Figure 3 A discharge butterfly valve 57 is fixedly installed on one side of the bottom of the filter screen cover 52, and a discharge pipe 58 is fixedly installed on the output end of the discharge butterfly valve 57. The output end of the discharge pipe 58 passes through one side of the bottom of the tank body 51. Through the discharge butterfly valve 57 and the discharge pipe 58 arranged on the bottom side of the filter screen cover 52, the incompletely crushed coal can be conveniently discharged from the tank body 51 when needed, which is convenient for subsequent processing and improves the flexibility of equipment operation; at the same time, the design of the discharge pipe 58 passing through one side of the bottom of the tank body 51 makes the discharge process smoother, does not cause material accumulation or blockage, and ensures the continuity and stability of the equipment operation. This controllable discharge structure is also conducive to the adjustment and optimization of the equipment according to actual conditions, and enhances the adaptability of the entire thermal power generation device under different working conditions.

[0027] refer to Figure 1-Figure 3A feed butterfly valve 59 is fixedly connected to one side of the top of the top cover 54, and a feed hopper is fixedly installed at the top input end of the feed butterfly valve 59. The bottom of the feed butterfly valve 59 is connected to the inner side of the filter screen cover 52. By arranging the feed butterfly valve 59 and the feed hopper on the top of the top cover 54, the feeding process can be flexibly controlled, which is convenient for adding coal. The feed butterfly valve 59 ensures the stability and controllability of the feed and can effectively prevent the disorderly influx of coal. The design of being connected to the inner side of the filter screen cover 52 allows the coal to directly enter the crushing and screening area, thereby improving work efficiency. This direct feeding method reduces the problems such as blockage that may occur in the intermediate links, ensures the smoothness and efficiency of the feeding link of the entire device, and further improves the overall performance of the thermal power generation device.

[0028] refer to Figure 2 The driving assembly 53 includes a vertical rail 531, which is fixedly installed in the middle of the back side of the tank body 51. A first motor 532 is fixedly installed at the bottom of the vertical rail 531. A screw rod 533 is fixedly installed at the output end of the first motor 532 through the bottom of the vertical rail 531. A slide rod 534 is threadedly connected to the outer surface of the screw rod 533. The outer end of the slide rod 534 is fixedly connected to the top cover 54. The vertical rail 531 provides a stable moving track for the slide rod 534 to ensure the smoothness and accuracy of the movement of the top cover 54. The first motor 532 drives the screw rod 533 to rotate, thereby driving the slide rod 534 to move up and down, thereby realizing the flexible lifting and lowering of the top cover 54. This mechanical transmission method is accurate and reliable, and can quickly raise or lower the top cover 54 and its internal crushing assembly 55 as needed, which is convenient for inspection, maintenance and cleaning operations, thereby improving the maintainability and convenience of the equipment.

[0029] refer to Figure 3-Figure 4 The crushing assembly 55 includes a second motor 551, which is fixedly installed in the middle of the top of the top cover 54. The output end of the second motor 551 passes through the top cover 54 and is fixedly installed with a rotating shaft 552. The outer surface of the rotating shaft 552 is fixedly installed with crushing rods 553 at equal intervals. The second motor 551 in the crushing assembly 55 drives the rotating shaft 552 and the crushing rods 553, which can efficiently crush the coal, improve the crushing efficiency and effect, and ensure that the coal can be better used for combustion and power generation. The crushing rods 553 fixedly installed at equal intervals make the crushing more uniform and comprehensive, and ensure the crushing quality. Moreover, this installation method on the top cover 54 is closely integrated with the structure of the entire device. When maintenance or cleaning is required, it can be operated together with the top cover 54, which is very convenient. The second motor 551 provides a stable power source to ensure the continuous and stable progress of the crushing work, and provides strong support for the good operation of the thermal power generation device.

[0030] refer to Figure 4The lower end of the rotating shaft 552 is fixedly installed with brackets 554 at equal intervals, and the bottom of the brackets 554 is rotatably connected to a crushing roller 555, and the bottom of the crushing roller 555 is fitted and connected to the bottom of the filter screen cover 52. The brackets 554 and crushing rollers 555 arranged at equal intervals at the lower end of the rotating shaft 552 further enhance the crushing effect. The crushing rollers 555 are fitted and connected to the bottom of the filter screen cover 52, and can crush the coal at the bottom more finely, thereby improving the fineness and thoroughness of the crushing. This multi-faceted crushing structure makes the crushing work more comprehensive and in-depth, reduces the residual coal that has not been fully crushed, thereby better ensuring the quality of the coal and facilitating subsequent combustion and power generation.

[0031] refer to Figure 4 The upper end of the filter screen cover 52 is cylindrical, the lower end of the filter screen cover 52 is conical, the crushing roller 555 is inclined, the crushing roller 555 and the inclined part of the lower end of the filter screen cover 52 are parallel, the cylindrical design of the upper end of the filter screen cover 52 can accommodate more coal to be crushed, ensuring the feed amount and work efficiency, and the conical setting of the lower end is conducive to the concentrated falling of the crushed coal, avoiding accumulation and blockage, and improving the smoothness of material flow. The crushing roller 555 is inclined and parallel to the inclined part of the lower end of the filter screen cover 52, so that the crushing roller 555 can better fit the filter screen cover 52 for crushing operations, which increases the effectiveness and pertinence of crushing, can crush the coal more thoroughly, and improves the crushing quality and effect.

[0032] Principle and advantages of use: The device is provided with a feeding mechanism 5, so that during use, the device can add coal into the tank body 51 through the feeding butterfly valve 59. At this time, by starting the second motor 551, the second motor 551 can be used to drive the rotating shaft 552 located inside the filter screen cover 52 to rotate, and the crushing rod 553 is driven to rotate inside the filter screen cover 52 through the rotating shaft 552, so that the coal blocks can be crushed. During this period, the qualified coal is discharged into the bottom of the tank body 51 through the mesh gap of the filter screen cover 52, while the unqualified coal blocks continue to be crushed inside the filter screen cover 52. At the same time, during the crushing period, larger particles accumulate in the combustion boiler. 2 inner bottom, the rotating shaft 552 drives the bracket 554 to rotate, and the bracket 554 drives the crushing roller 555 to rotate. The crushing roller 555 rotates to fit the inner bottom of the filter screen 52 to further crush the coal, thereby improving the crushing efficiency. The crushed coal falls into the bottom of the tank body 51, and the coal can be transported to the inside of the combustion boiler 2 for combustion and power generation by starting the combustion-supporting fan 6. It can be seen that the device adopts the setting of the filter screen 52 and the crushing assembly 55, so that it can perform continuous crushing and screening, which can ensure the crushing effect, avoid the phenomenon that large particles of impurities enter the bottom and cause the conveying pipe 56 to be blocked, and can improve the overall use stability and combustion efficiency of the device;

[0033] By setting the driving assembly 53, when the device needs to be cleaned, the discharge butterfly valve 57 can be opened, and the uncrushed coal in the filter screen cover 52 can be discharged to the outside of the tank body 51 through the discharge pipe 58. At this time, the first motor 532 is started to run, and the first motor 532 drives the screw rod 533 to rotate, and the screw rod 533 can drive the slide bar 534 to slide inside the vertical rail 531. The slide bar 534 moves up and down to drive the top cover 54 to move up and down. When cleaning is required, the top cover 54 and the crushing assembly 55 inside it can be pulled out from the filter screen cover 52 of the tank body 51. The whole crushing assembly 55 is pulled out, which is convenient for cleaning and maintenance of the crushing assembly 55 on the one hand, and on the other hand, the top of the filter screen cover 52 is opened, which is also convenient for cleaning and maintenance of the inside of the filter screen cover 52, which can improve the convenience of cleaning, maintenance and overhaul of the device as a whole, and can improve the overall performance and convenience of the device.

Claims

1. A thermal power generation device, comprising a base (1), characterized in that: A combustion boiler (2) is fixedly mounted on one side of the top of the base (1), a steam turbine unit (3) is fixedly mounted on the top of the combustion boiler (2), a support frame (4) is fixedly mounted in the middle of the top of the base (1), a feeding mechanism (5) is fixedly mounted on the top of the support frame (4), an output end of the feeding mechanism (5) is connected to an input end of the combustion boiler (2), a combustion-supporting fan (6) is fixedly mounted on a side of the top of the base (1) away from the combustion boiler (2), and the output end of the combustion-supporting fan (6) is connected to the combustion boiler (2); The feeding mechanism (5) comprises a tank body (51) and a filter screen cover (52); a driving assembly (53) is fixedly mounted on the back of the tank body (51); a top cover (54) is fixedly mounted on the top of the driving assembly (53); the top cover (54) covers the top of the tank body (51); the top cover (54) seals the tank body (51); a crushing assembly (55) is movably mounted in the middle of the bottom of the top cover (54); the filter screen cover (52) is fixedly mounted on the inner side of the tank body (51); the filter screen cover (52) is sleeved on the outer side of the crushing assembly (55); a conveying pipe (56) is fixedly mounted on the bottom of the tank body (51); one end of the conveying pipe (56) is connected to the combustion-supporting fan (6); and the other end of the conveying pipe (56) is connected to the combustion boiler (2).

2. A thermal power generation device according to claim 1, characterized in that: A discharge butterfly valve (57) is fixedly mounted on one side of the bottom of the filter screen cover (52), a discharge pipe (58) is fixedly mounted on the output end of the discharge butterfly valve (57), and the output end of the discharge pipe (58) passes through one side of the bottom of the tank body (51).

3. A thermal power generation device according to claim 2, characterized in that: A feed butterfly valve (59) is fixedly connected to one side of the top of the top cover (54), a feed hopper is fixedly installed at the top input end of the feed butterfly valve (59), and the bottom of the feed butterfly valve (59) is connected to the inner side of the filter screen cover (52).

4. A thermal power generation device according to claim 1, characterized in that: The driving assembly (53) comprises a vertical rail (531), wherein the vertical rail (531) is fixedly installed in the middle of the back side of the tank body (51), a first motor (532) is fixedly installed at the bottom of the vertical rail (531), an output end of the first motor (532) passes through the bottom of the vertical rail (531) and a lead screw (533) is fixedly installed, an outer surface of the lead screw (533) is threadedly connected to a slide rod (534), and an outer end of the slide rod (534) is fixedly connected to the top cover (54).

5. A thermal power generation device according to claim 1, characterized in that: The crushing assembly (55) comprises a second motor (551), the second motor (551) is fixedly mounted in the middle of the top of the top cover (54), the output end of the second motor (551) passes through the top cover (54) and is fixedly mounted with a rotating shaft (552), and crushing rods (553) are fixedly mounted at equal intervals on the outer surface of the rotating shaft (552).

6. A thermal power generation device according to claim 5, characterized in that: Brackets (554) are fixedly mounted at equal intervals on the lower end of the rotating shaft (552), and the bottom of the brackets (554) is rotatably connected to a crushing roller (555), and the bottom of the crushing roller (555) is fitted and connected to the inner bottom of the filter screen cover (52).

7. A thermal power generation device according to claim 6, characterized in that: The upper end of the filter screen cover (52) is arranged in a cylindrical shape, the lower end of the filter screen cover (52) is arranged in a conical shape, the crushing roller (555) is arranged in an inclined shape, and the crushing roller (555) and the lower end of the filter screen cover (52) are arranged in parallel.

Images