An adaptive heating system for coal-fired thermal power units

Abstract

The present invention provides an adaptive heating system for a coal-fired thermal power unit, and relates to the technical field of thermal power supply, comprising: a unit casing, wherein a drum separator, a main heating tube group, a primary heat exchange plate, a secondary heat exchange plate, a rear heat exchange plate and a water-cooled bin are fixedly arranged inside the unit casing, and the main heating tube group, the primary heat exchange plate, the secondary heat exchange plate, the rear heat exchange plate and the water-cooled bin are connected in series; the present invention is provided with a smoke separation device, and a recovery circulation structure is provided, and dust generated by combustion will enter the smoke separation device through pressure, and a filter screen is used to intercept particulate matter and coal ash, and the coal ash falls on the inclined channel and is blocked by a one-way plate. After the dust is gathered, the one-way plate is propped open by gravity, and the spiral propeller is driven to rotate by a transmission motor to push the dust into an ash discharge channel, and the gate at the bottom of the ash discharge channel is opened to discharge the dust, and the circulation structure is complete, which can reduce dust emissions and solve the problem of the existing unit gas valve recovery circulation structure.

Description

Technical Field

[0001] The invention relates to the technical field of thermal power supply, and in particular to an adaptive heating system for a coal-fired thermal power unit. Background Art

[0002] The heating scheme of the coal-fired system is mainly to transfer the heat energy generated by the combustion of coal to water, turning the water into steam, thereby generating high-temperature and high-pressure steam. The steam is used to drive generators or for heating purposes. The hot air emitted from the unit can be used as needed.

[0003] The heating systems currently used have the following disadvantages:

[0004] 1. The recycling effect is average. It is inconvenient to recycle the dust produced by combustion and discharge the dust for recycling. There is a lack of recycling cycle structure;

[0005] 2. Lack of automatic cycle adding function, inconvenient to use spare power to add coal;

[0006] 3. Lack of easy-to-select and adaptable unit lubrication structure. Summary of the invention

[0007] In view of this, the present invention provides an adaptive heating system for coal-fired thermal power units, which has a smoke separation device that can separate smoke, discharge mist, intercept smoke ash, and collect it downward, and finally discharge it in an integrated manner. Subsequently, a screening machine can be used to recover and reuse the incompletely burned coal powder.

[0008] The present invention provides an adaptive heating system for a coal-fired thermal power unit, specifically comprising: a unit casing, wherein a drum separator, a main heating tube group, a primary heat exchange plate, a secondary heat exchange plate, a tail heat exchange plate and a water-cooled warehouse body are fixedly arranged inside the unit casing, and the main heating tube group, the primary heat exchange plate, the secondary heat exchange plate, the tail heat exchange plate and the water-cooled warehouse body are connected in series; a coal powder injection bucket is fixedly arranged on the outside of the unit casing with a matching bracket, and an impeller device is fixedly arranged on the bottom of the coal powder injection bucket through an H-shaped bracket; a steam turbine generator, wherein the steam turbine generator is composed of a high-pressure warehouse, a medium-pressure warehouse and a low-pressure warehouse connected by a mounting frame; a steam-water separator is arranged in the drum separator, and the drum separator, the secondary heat exchange plate and the tail heat exchange plate, and the inlet and outlet of the water-cooled warehouse body are connected; the main heating tube group is connected in series with the high-pressure warehouse, and the main heating tube group is also connected to the secondary heat exchange plate; a gas path is also arranged between the primary heat exchange plate and the secondary heat exchange plate, and a medium-pressure warehouse and an impeller device are connected in series; a piston oil replenisher for adding lubricating oil is fixedly arranged on the top of the mounting frame.

[0009] Optionally, the bottom of the unit casing is a groove structure, a screw propeller is rotatably arranged in the groove structure, the unit casing extends outwardly, a transmission motor is fixedly arranged at the extension, the transmission motor is connected to the screw propeller, and an ash discharge channel is also integrally arranged on one side of the extension.

[0010] Optionally, a gate structure whose opening and closing is controlled by a cylinder is provided at the bottom of the ash discharge channel.

[0011] Optionally, a burner is fixedly provided at a position below the water-cooling chamber, and the burner is an inverted trapezoidal grid structure.

[0012] Optionally, a smoke separation device is provided at the lower side of the unit casing via a pipe connection, a smoke outlet is integrally provided at the top of the smoke separation device, and a filter is fixedly provided at the middle upper portion of the smoke separation device; an inclined channel is provided at the bottom of the smoke separation device to connect to the unit casing, a one-way plate is rotatably provided in the inclined channel, and the bottom of the one-way plate fits the inner wall of the channel through gravity.

[0013] Optionally, a fan seat is fixedly provided at the outer end of the input channel, and a connecting pipe is integrally provided at the top of the input channel.

[0014] Optionally, a protruding circular bin is integrally provided on the lower external part of the coal powder injection bucket, and the top of the connecting pipe is connected to the bottom of the protruding circular bin; a rotating sub-wheel is rotatably provided in the coal powder injection bucket and the protruding circular bin, and six groups of fan-shaped through grooves are provided in the rotating sub-wheel around the array; a driven shaft A is rotatably provided above the bottom bracket of the coal powder injection bucket, and the driven shaft A is connected to the rotating shaft of the rotating sub-wheel by a bevel gear set for transmission; a driven gear A is fixedly provided at the other end of the driven shaft A; a driven shaft B is rotatably provided below the bottom bracket of the coal powder injection bucket, a driven gear B is fixedly provided on one end of the driven shaft B, and an intake fan is fixedly provided at the other end of the driven shaft B, and the intake fan rotates in the fan seat.

[0015] Optionally, the rotating shaft of the impeller device is installed through a waterproof bearing, and a transmission gear is fixedly arranged outside the impeller shaft, and the transmission gear is meshed with the driven gear A and the driven gear B; when the steam passes through the impeller device, it drives the transmission gear to rotate, and the transmission gear drives the driven gear A and the driven gear B to rotate; when the driven gear A rotates, it drives the driven shaft A to rotate, and the driven shaft A drives the rotating part wheel to rotate after deceleration in conjunction with the bevel gear set, and the rotating part wheel rotates slowly and provides a quantitative conveying function, so as to convey the coal powder to the connecting pipe and make the coal powder fall into the input channel; the driven gear B drives the driven shaft B to rotate and then the air intake fan rotates, and the air intake fan provides airflow to input the coal powder in the input channel into the water-cooled bin, and the coal powder is ignited by the burner to generate heat through the coal powder.

[0016] Optionally, a proximity sensor and an electric cylinder are fixedly provided on the top of the mounting frame, and a pressing piece is fixedly provided on the telescopic end of the electric cylinder.

[0017] Optionally, an oil limiting docking valve is integrally provided in the middle of the bottom of the piston oil replenisher, and two groups of V-shaped valve plates are rotatably provided on both sides of the interior of the oil limiting docking valve, and springs are provided between the bottoms of the two groups of V-shaped valve plates and the inner walls on both sides of the oil limiting docking valve; a diamond-shaped block is fixedly provided at the lower middle of the oil limiting docking valve, and the V-shaped valve plate can fit and contact the diamond-shaped block; a piston plate is slidably provided inside the piston oil replenisher, a piston tube is integrally provided in the middle of the top of the piston plate, and a spring is provided at the top of the piston tube for transmitting the piston oil replenisher sleeve; the top of the piston tube is a flange structure, and a control rod is integrally provided on one side of the top of the piston tube, and the pressing plate can contact the control rod when it descends; the piston oil replenisher is integrally provided with an oil filling hopper; a sliding Valve, four groups of guide plates are integrally arranged on the top of the sliding valve, and the guide plates are slidably connected to the through holes of the oil filling bucket; lubrication can be carried out by using a piston oiler, which is arranged above the rotating shaft, and the lubricating oil is poured in through the oil filling bucket. After the lubricating oil passes through the gap between the oil filling bucket, the guide plates and the side of the sliding valve, it falls into the interior of the piston oiler, and then the piston tube is manually pressed to drive the piston plate to descend. The pressure generated during this period will raise the sliding valve and close the oil filling bucket, and then continue to increase the pressure. The lubricating oil will drive the V-shaped valve plate to flip downward. In the process of the V-shaped valve plate descending, the diamond-shaped block is used to limit the position, and the lubricating oil sandwiched in the gap between the V-shaped valve plates on both sides is quantitatively transported downward for lubrication; loosen the piston tube, the piston tube is automatically reset by the spring, and the V-shaped valve plate is automatically reset synchronously.

[0018] The beneficial effects are as follows:

[0019] 1. The present invention is provided with a smoke separation device and provides a recovery circulation structure. The dust generated by combustion will enter the smoke separation device through pressure, and the particulate matter and coal ash will be intercepted by a filter. The coal ash falls on the inclined channel and is blocked by a one-way plate. After the dust is gathered, the one-way plate is opened by gravity, so that the dust passes through the one-way plate and is transported to the screw propeller. The screw propeller is driven to rotate by a transmission motor to push the dust into the ash discharge channel. The dust can be discharged by opening the gate at the bottom of the ash discharge channel. The circulation structure is complete and dust emissions can be reduced.

[0020] 2. An impeller device is provided to provide an additional function of automatic circulation. When the steam passes through the impeller device, it drives the transmission gear to rotate, and then drives the driven gear A and the driven gear B to rotate. The reduction gear drives the rotating impeller to rotate. The rotating impeller rotates slowly and provides a quantitative conveying function to transport the coal powder into the connecting pipe and make the coal powder fall into the input channel. The air intake fan provides airflow to input the coal powder in the input channel into the water-cooled bin. The burner is used to ignite the coal powder, and heat is generated by the coal powder to achieve automatic circulation heating.

[0021] 3. A piston oiler is provided to provide a lubrication structure for the unit. The internal variable volume of the piston oiler can form a piston structure to add lubricating oil to the outside of the turbine shaft for lubrication and reduce resistance. The amount of oil added each time can be limited by the V-shaped valve plate, and the pressing plate is driven down by the electric cylinder. The pressing plate contacts the control rod to drive the piston tube down for automatic oil injection, thereby realizing timed automatic oil injection. The oil injection can also be manually controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the appearance structure of a unit according to an embodiment of the present invention is shown;

[0023] Figure 2 The overall structural schematic diagram of the steam turbine generator according to an embodiment of the present invention is shown;

[0024] Figure 3 A schematic diagram of a connection structure according to an embodiment of the present invention is shown;

[0025] Figure 4 A schematic cross-sectional structure diagram of a casing of a unit according to an embodiment of the present invention is shown;

[0026] Figure 5 A schematic diagram of the structure of a unit casing in a side view from above according to an embodiment of the present invention is shown;

[0027] Figure 6 A schematic diagram of the transmission structure of the impeller device according to an embodiment of the present invention is shown;

[0028] Figure 7 A schematic cross-sectional view of a piston oil replenisher according to an embodiment of the present invention is shown;

[0029] Figure 8 A schematic diagram of the system flow structure according to an embodiment of the present invention is shown.

[0030] Reference numerals list

[0031] 1. Unit shell; 101. Drum separator; 102. Main heating tube group; 103. Primary heat exchange plate; 104. Secondary heat exchange plate; 105. Tail heat exchange plate; 106. Water-cooled warehouse; 107. Screw propeller; 108. Transmission motor; 109. Ash discharge channel; 110. Burner; 2. Smoke separation device; 201. Smoke outlet; 202. Filter; 203. One-way plate; 3. Input channel; 301. Fan seat; 302. Connecting pipe; 4. Coal powder injection bucket; 401. Protruding round warehouse; 402. Rotating sub-wheel; 403. Driven shaft A; 404. Driven gear A; 405, driven shaft B; 406, driven gear B; 407, intake fan; 5, impeller device; 501, transmission gear; 6, steam turbine generator; 601, mounting frame; 602, high-pressure chamber; 603, medium-pressure chamber; 604, low-pressure chamber; 605, proximity sensor; 606, electric cylinder; 607, pressing plate; 7, piston oil replenisher; 701, oil-limiting docking valve; 702, V-shaped valve plate; 703, diamond-shaped block; 704, piston plate; 705, piston tube; 706, control rod; 707, oil filling bucket; 708, sliding valve; 709, guide plate. DETAILED DESCRIPTION

[0032] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention.

[0033] Embodiment 1:

[0034] Please refer to Figures 1 to 8 As shown:

[0035] The present invention proposes an adaptive heating system for a coal-fired thermal power unit, comprising: a unit shell 1, wherein a drum separator 101, a main heating tube group 102, a primary heat exchange plate 103, a secondary heat exchange plate 104, a rear heat exchange plate 105 and a water-cooled bin 106 are fixedly arranged inside the unit shell 1, and the main heating tube group 102, the primary heat exchange plate 103, the secondary heat exchange plate 104, the rear heat exchange plate 105 and the water-cooled bin 106 are connected in series; a pulverized coal injection hopper 4 is fixedly arranged on the outside of the unit shell 1 by a matching bracket, and an impeller device 5 is fixedly arranged at the bottom of the pulverized coal injection hopper 4 through an H-shaped bracket; a steam turbine generator 6, the steam turbine generator 6 The high-pressure chamber 602, the medium-pressure chamber 603 and the low-pressure chamber 604 are connected and installed through the mounting frame 601; a steam-water separator is arranged in the drum separator 101, and the drum separator 101, the secondary heat exchange plate 104 and the tail heat exchange plate 105, as well as the inlet and outlet of the water-cooled chamber 106 are connected; the main heating pipe group 102 is connected in series with the high-pressure chamber 602, and the main heating pipe group 102 is also connected to the secondary heat exchange plate 104; an air circuit is also arranged between the primary heat exchange plate 103 and the secondary heat exchange plate 104 in series with the medium-pressure chamber 603 and the impeller device 5; a piston oil replenisher 7 for adding lubricating oil is fixedly arranged on the top of the mounting frame 601.

[0036] Among them, the bottom of the unit casing 1 is a groove structure, and a screw propeller 107 is rotatably arranged in the groove structure. The unit casing 1 extends outward, and a transmission motor 108 is fixedly arranged at the extension. The transmission motor 108 is transmission-connected to the screw propeller 107, and an ash discharge channel 109 is also integrally arranged on one side of the extension.

[0037] Among them, a gate structure whose opening and closing is controlled by a cylinder is provided at the bottom of the ash discharge channel 109.

[0038] Among them, a burner 110 is fixedly arranged at a position below the water-cooled warehouse body 106. The burner 110 is an inverted trapezoidal grid structure. The burner 110 provides a starting effect and generates circulating power through electric heating, which can be converted into circulating power through continuous combustion later.

[0039] Among them, a smoke separation device 2 is provided at the lower side of the unit casing 1 through a pipe connection, a smoke outlet pipe 201 is integrally provided at the top of the smoke separation device 2, and a filter screen 202 is fixedly provided at the middle upper part of the smoke separation device 2; an inclined channel is provided at the bottom of the smoke separation device 2 to connect with the unit casing 1, a one-way plate 203 is rotatably provided in the inclined channel, and the bottom of the one-way plate 203 fits the inner wall of the channel through gravity.

[0040] A fan seat 301 is fixedly provided at the outer end of the input channel 3 , and a connecting pipe 302 is integrally provided at the top of the input channel 3 .

[0041] Among them, a protruding circular bin 401 is integrally arranged on the outside of the lower part of the coal powder injection bucket 4, and the top of the connecting pipe 302 is connected to the bottom of the protruding circular bin 401; a rotating minute wheel 402 is rotatably arranged in the coal powder injection bucket 4 and the protruding circular bin 401, and six groups of fan-shaped through grooves are opened in the rotating minute wheel 402 around the array; a driven shaft A403 is rotatably arranged above the bottom bracket of the coal powder injection bucket 4, and the driven shaft A403 is connected to the rotating shaft of the rotating minute wheel 402 by a bevel gear set; a driven gear A404 is fixedly arranged at the other end of the driven shaft A403; a driven shaft B405 is rotatably arranged below the bottom bracket of the coal powder injection bucket 4, a driven gear B406 is fixedly arranged on one end of the driven shaft B405, and an intake fan 407 is fixedly arranged at the other end of the driven shaft B405, and the intake fan 407 rotates in the fan seat 301.

[0042] The rotating shaft of the impeller device 5 is installed through a waterproof bearing, and a transmission gear 501 is fixedly arranged outside the impeller shaft, and the transmission gear 501 is meshed with the driven gear A404 and the driven gear B406.

[0043] A proximity sensor 605 and an electric cylinder 606 are fixedly disposed on the top of the mounting frame 601 , and a pressing piece 607 is fixedly disposed on the telescopic end of the electric cylinder 606 .

[0044] The piston oil replenisher 7 is provided with an oil limiting docking valve 701 in an integrated manner in the middle of the bottom, and two groups of V-shaped valve plates 702 are rotatably provided on both sides of the interior of the oil limiting docking valve 701, and springs are provided between the bottoms of the two groups of V-shaped valve plates 702 and the inner walls of both sides of the oil limiting docking valve 701; a diamond-shaped block 703 is fixedly provided at the lower middle of the oil limiting docking valve 701, and the V-shaped valve plate 702 can fit and contact the diamond-shaped block 703; a piston plate 704 is slidably provided inside the piston oil replenisher 7, and a piston plate 704 is integrally provided in the middle of the top of the piston plate 704 The piston tube 705 and the piston oiler 7 sleeve are provided with a spring at the top of the piston tube 705; the top of the piston tube 705 is a flange structure, and a control rod 706 is integrally provided on one side of the top of the piston tube 705, and the pressing plate 607 can contact the control rod 706 when it descends; the piston oiler 7 is integrally provided with an oil filling bucket 707; a sliding valve 708 is supported on the upper part of the interior of the piston tube 705 through a limiting frame, and four sets of guide plates 709 are integrally provided on the top of the sliding valve 708, and the guide plates 709 are slidably connected with the through holes of the oil filling bucket 707.

[0045] The working principle of a coal-fired boiler is mainly to transfer the heat energy generated by the combustion of coal to water, turning water into steam, thereby generating high-temperature and high-pressure steam for driving generators or heating purposes. In conventional technology, coal enters the continuously rotating chain grate through the coal hopper. As the grate moves from front to back, the coal is heated, ignited and burned in the boiler until it is completely burned. The air is sent to the lower end of the grate through the air duct compartment by the blower. The flame generated by the combustion of coal and its high-temperature flue gas undergo radiation heat exchange in the furnace body, transferring the heat to the water-cooled walls around the furnace body, enhancing the working medium temperature in the water-cooled wall tubes, thereby reducing the flue gas temperature. Then the flue gas enters To the cooling room, it conducts radiation heat exchange with the water-cooled walls around the cooling room. The flue gas flushes the convection tube bundle in sequence and is discharged into the atmosphere through the dust collector, induced draft fan and flue. The return water fed back from the equipment is sent to the upper drum by the hot water circulation pump, divided into several circulation loops for heating, and the hot water is sent from the top of the upper drum to the heat-using equipment or location to achieve suitable heating. The coal-fired energy-saving and environmentally friendly boiler integrates the gas generator and the boiler into a whole, uses high temperature to combine the coal seam with water vapor, and generates combustible gas (coal gas) after full chemical reaction, and generates high-temperature flame through the automatic ignition system to make the gas fully burned, thereby minimizing heat loss.

[0046] The drum separator 101 is a cylindrical pressure vessel used for steam-water separation and steam purification in a water tube boiler, forming a water circulation loop and storing boiler water. It is also called a steam drum. Its main functions are to receive water from the economizer, separate steam from water, supply water to the circulation loop, and transport saturated steam to the superheater. A certain amount of water is stored in the drum separator 101, which has a certain amount of heat and working fluid storage. It can slow down the speed of steam pressure change when the working conditions change, and play a certain buffering role when the water supply and load are not coordinated for a short time. The drum is equipped with internal devices to separate steam from water, steam cleaning, dosing in the boiler, and continuous sewage discharge to ensure the steam quality.

[0047] like Figure 1-7As shown, according to conventional technology, the burner 110 is powered on for heating, and the burner 110 is used to generate preliminary heat to heat the water in the main heating tube group 102. The water vaporizes and enters the high-pressure chamber 602 to provide power, and then returns to the secondary heat exchange plate 104 for heating again, and then passes through the medium-pressure chamber 603, the low-pressure chamber 604 and the impeller device 5 to enter the tail heat exchange plate 105, and finally returns to the drum separator 101; when the steam passes through the impeller device 5, it drives the transmission gear 501 to rotate, and the transmission gear 501 drives the driven gear A404 and the driven gear B406 to rotate; when the driven gear A404 rotates, it drives The driven shaft A403 rotates, and the driven shaft A403 drives the rotating wheel 402 to rotate after the bevel gear set is decelerated. The rotating wheel 402 rotates slowly and provides a quantitative conveying function, and the coal powder is conveyed to the connecting pipe 302, so that the coal powder falls into the input channel 3; the driven gear B406 drives the driven shaft B405 to rotate, and then the air intake fan 407 rotates, and the air intake fan 407 provides airflow to input the coal powder in the input channel 3 into the water-cooled bin 106, and the burner 110 is used to ignite the coal powder, and heat is generated by the coal powder. At this time, the burner 110 is stopped to enter the cycle, and steam is used for continuous heating;

[0048] The dust generated by combustion will enter the smoke separation device 2 through pressure, and the filter 202 will be used to intercept particulate matter and fly ash. The fly ash falls on the inclined channel and is blocked by the one-way plate 203. After being gathered by gravity, the one-way plate 203 will be opened and transported to the screw propeller 107 through the one-way plate 203. The screw propeller 107 is driven to rotate by the transmission motor 108 to push the dust into the ash discharge channel 109. The gate at the bottom of the ash discharge channel 109 can be opened to discharge the dust. Therefore, a collection container or a conveyor belt can be pre-laid at the bottom of the ash discharge channel 109 to automatically collect the dust.

[0049] Embodiment 2:

[0050] On the basis of Example 1, a piston oiler 7 is selected for lubrication. The piston oiler 7 is arranged above the rotating shaft, and the lubricating oil is poured in through the oil filling bucket 707. After the lubricating oil passes through the gap between the oil filling bucket 707 and the guide plate 709 and the side of the sliding valve 708, it falls into the interior of the piston oiler 7. Then, the piston tube 705 is manually pressed to drive the piston plate 704 to descend. The pressure generated during this period will raise the sliding valve 708 and close the oil filling bucket 707. Then, the pressure is continued to be increased, and the lubricating oil will drive the V-shaped valve plate 702 to flip downward. In the process of the V-shaped valve plate 702 descending, the diamond-shaped block 703 is used to limit the position, and the lubricating oil sandwiched in the gap between the V-shaped valve plates 702 on both sides is quantitatively transported downward for lubrication. The piston tube 705 is released, and the piston tube 705 is automatically reset by the spring, and the V-shaped valve plate 702 is automatically reset synchronously, and the diamond-shaped block 703 is used to reset back Figure 7 Status in.

[0051] Embodiment 3:

[0052] On the basis of Example 2, automatic oil injection can be performed. The electric cylinder 606 drives the pressing plate 607 to descend, and the pressing plate 607 contacts the control rod 706 to drive the piston tube 705 to descend for automatic oil injection. The electric cylinder 606 can be used to drive the automatic oil injection at a fixed time.

[0053] During the inspection, if the inspector finds that the machine is not running smoothly and needs manual oiling, the inspector can use the control rod 706 to descend in advance and contact the proximity sensor 605 to trigger the refresh timing.

[0054] Embodiment 4:

[0055] On the basis of Example 1, it is possible to choose not to use the steam turbine for power generation, and directly connect the pipeline to the heating pipe for circulating heating.

[0056] Specific usage and function of this embodiment: In the present invention, when in use, firstly, according to conventional technology, the burner 110 is powered on for heating, and the burner 110 is used to generate preliminary heat to heat the water in the main heating tube group 102, and then the water vaporizes and enters the high-pressure chamber 602 to provide power, and then returns to the secondary heat exchange plate 104 for heating again, and then passes through the medium-pressure chamber 603, the low-pressure chamber 604 and the impeller device 5 to enter the tail heat exchange plate 105, and finally returns to the drum separator 101;

[0057] On this premise, the transmission is improved. When steam passes through the impeller device 5, it drives the transmission gear 501 to rotate, and the transmission gear 501 drives the driven gear A404 and the driven gear B406 to rotate; when the driven gear A404 rotates, it drives the driven shaft A403 to rotate, and the driven shaft A403 drives the rotating minute wheel 402 to rotate after the bevel gear group is decelerated. The rotating minute wheel 402 rotates slowly and provides a quantitative conveying function, and the coal powder is conveyed to the connecting pipe 302, so that the coal powder falls into the input channel 3; the driven gear B406 drives the driven shaft B405 to rotate and then the air intake fan 407 to rotate, and the air intake fan 407 provides airflow to input the coal powder in the input channel 3 into the water-cooled warehouse 106, and the coal powder is ignited by the burner 110 to generate heat by the coal powder. At this time, the burner 110 is stopped to enter the cycle, and steam is used for continuous heating;

[0058] The dust generated by combustion will enter the smoke separation device 2 under pressure, and the filter 202 will be used to intercept particulate matter and coal ash. The coal ash will fall on the inclined channel and be blocked by the one-way plate 203. After being gathered by gravity, the one-way plate 203 will be opened and transported to the screw propeller 107 through the one-way plate 203. The screw propeller 107 will be driven to rotate by the transmission motor 108 to push the dust into the ash discharge channel 109. The gate at the bottom of the ash discharge channel 109 can be opened to discharge the dust.

[0059] The generator set is improved and lubrication can be performed using the piston oiler 7. The piston oiler 7 is set above the rotating shaft, and the lubricating oil is poured in through the oil filling bucket 707. After the lubricating oil passes through the gap between the oil filling bucket 707 and the guide plate 709 and the side of the sliding valve 708, it falls into the interior of the piston oiler 7. Then the piston tube 705 is manually pressed to drive the piston plate 704 to descend. The pressure generated during this period will raise the sliding valve 708 and close the oil filling bucket 707. Then, the pressure is continued to be increased, and the lubricating oil will drive the V-shaped valve plate 702 to flip downward. During the descent of the V-shaped valve plate 702, the diamond-shaped block 703 is used to limit the position, and the lubricating oil sandwiched in the gap between the V-shaped valve plates 702 on both sides is quantitatively transported downward for lubrication. The piston tube 705 is released, and the piston tube 705 is automatically reset by the spring, and the V-shaped valve plate 702 is automatically reset synchronously, and the diamond-shaped block 703 is used to reset it back Figure 7 Status in

[0060] Alternatively, the pressing plate 607 may be driven down by the electric cylinder 606, and the pressing plate 607 may contact the control rod 706 to drive the piston tube 705 down for automatic oil injection. The electric cylinder 606 may be used to drive the automatic oil injection at a scheduled time. If it is found that the operation is not smooth during inspection and manual oil injection is required, the control rod 706 may be lowered in advance to contact the proximity sensor 605, which may trigger the refresh of the timing.

Claims

1. An adaptive heating system for coal-fired thermal power units, characterized in that: include: A unit casing (1), wherein a drum separator (101), a main heating tube group (102), a primary heat exchange plate (103), a secondary heat exchange plate (104), a rear heat exchange plate (105) and a water cooling chamber (106) are fixedly arranged inside the unit casing (1), wherein the main heating tube group (102), the primary heat exchange plate (103), the secondary heat exchange plate (104), the rear heat exchange plate (105) and the water cooling chamber (106) are connected in series; a pulverized coal injection hopper (4) is fixedly arranged on the outside of the unit casing (1) by a matching bracket, and an impeller device (5) is fixedly arranged at the bottom of the pulverized coal injection hopper (4) by an H-shaped bracket; a steam turbine generator (6), wherein the steam turbine generator (6) is connected to a high-pressure chamber (106) through a mounting frame (601) and a mounting bracket (602) is provided. 602), a medium-pressure chamber (603) and a low-pressure chamber (604); a steam-water separator is arranged in the drum separator (101), and the drum separator (101), the secondary heat exchange plate (104) and the tail heat exchange plate (105), as well as the inlet and outlet of the water-cooled chamber (106) are connected; the main heating pipe group (102) is connected in series with the high-pressure chamber (602), and the main heating pipe group (102) is also connected to the secondary heat exchange plate (104); an air path is also arranged between the primary heat exchange plate (103) and the secondary heat exchange plate (104) in series with the medium-pressure chamber (603) and the impeller device (5); a piston oil replenisher (7) for adding lubricating oil is fixedly arranged on the top of the mounting frame (601); a piston oil replenisher (7) for adding lubricating oil is fixedly arranged at the outer end of the input channel (3) A fan seat (301) is provided, and a connecting pipe (302) is integrally provided on the top of the input channel (3); a protruding round bin (401) is integrally provided on the lower exterior of the coal powder injection bucket (4), and the top of the connecting pipe (302) is connected to the bottom of the protruding round bin (401); a rotating sub-wheel (402) is rotatably provided in the coal powder injection bucket (4) and the protruding round bin (401), and six groups of fan-shaped through grooves are provided in the rotating sub-wheel (402) in a surrounding array; a driven shaft A (403) is rotatably provided above the bottom bracket of the coal powder injection bucket (4), and the driven shaft A (403) is provided with a bevel gear set for transmission connection with the rotating shaft of the rotating sub-wheel (402); a driven gear A (404) is fixedly provided at the other end of the driven shaft A (403); A driven shaft B (405) is rotatably arranged below the bottom bracket of the coal powder injection bucket (4), a driven gear B (406) is fixedly arranged outside one end of the driven shaft B (405), an air intake fan (407) is fixedly arranged at the other end of the driven shaft B (405), and the air intake fan (407) rotates in the fan seat (301); the rotating shaft of the impeller device (5) is installed through a waterproof bearing, and a transmission gear (501) is also fixedly arranged outside the impeller shaft, and the transmission gear (501) is meshed with the driven gear A (404) and the driven gear B (406); a proximity sensor (605) and an electric cylinder (606) are fixedly arranged on the top of the mounting frame (601), and a pressing piece (607) is fixedly arranged at the telescopic end of the electric cylinder (606);An oil limiting docking valve (701) is integrally arranged in the middle of the bottom of the piston oil replenisher (7), two groups of V-shaped valve plates (702) are rotatably arranged on both sides of the inside of the oil limiting docking valve (701), and springs are arranged between the bottoms of the two groups of V-shaped valve plates (702) and the inner walls of both sides of the oil limiting docking valve (701); a diamond-shaped blocking block (703) is fixedly arranged in the middle of the oil limiting docking valve (701), and the V-shaped valve plate (702) can fit and contact the diamond-shaped blocking block (703); a piston plate (704) is slidably arranged in the inside of the piston oil replenisher (7), and a piston tube (704) is integrally arranged in the middle of the top of the piston plate (704). 705), a spring is provided on the top of the piston tube (705) to transmit the piston oil replenisher (7); the top of the piston tube (705) is a flange structure, and a control rod (706) is integrally provided on one side of the top of the piston tube (705), and the pressing plate (607) can contact the control rod (706) when descending; the piston oil replenisher (7) is integrally provided with an oil filling bucket (707); a sliding valve (708) is supported on the upper part of the interior of the piston tube (705) through a limiting frame, and four sets of guide plates (709) are integrally provided on the top of the sliding valve (708), and the guide plates (709) are slidably connected with the through holes of the oil filling bucket (707). ; 2. The adaptive heating system for coal-fired thermal power units according to claim 1, characterized in that: The bottom of the unit casing (1) is a groove structure, a screw propeller (107) is rotatably arranged in the groove structure, the unit casing (1) extends outwardly, a transmission motor (108) is fixedly arranged at the extension, the transmission motor (108) is transmission-connected to the screw propeller (107), and an ash discharge channel (109) is also integrally arranged on one side of the extension.

3. The adaptive heating system for coal-fired thermal power units according to claim 2, characterized in that: The bottom of the ash discharge channel (109) is provided with a gate structure whose opening and closing is controlled by a cylinder.

4. The adaptive heating system for coal-fired thermal power units according to claim 1, characterized in that: A burner (110) is fixedly arranged at a position below the water-cooling warehouse (106), and the burner (110) is an inverted trapezoidal grid structure.

5. The adaptive heating system for coal-fired thermal power units according to claim 1, characterized in that: A smoke separation device (2) is provided at the lower side of the unit housing (1) via a pipeline connection, a smoke outlet (201) is integrally provided at the top of the smoke separation device (2), and a filter screen (202) is fixedly provided at the middle upper part of the smoke separation device (2); an inclined channel is provided at the bottom of the smoke separation device (2) to connect with the unit housing (1), a one-way plate (203) is rotatably provided in the inclined channel, and the bottom of the one-way plate (203) is attached to the inner wall of the channel by gravity.

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