A waste heat recovery thermal power plant energy storage device

Abstract

The application discloses a waste heat recovery thermal power plant energy storage device and relates to the field of thermal power plant supporting facilities, which comprises an insulating shell and a rotating sleeve. A cleaning assembly is arranged in the insulating shell. The cleaning assembly comprises a reciprocating screw rod, the one end of the reciprocating screw rod is connected with a synchronous wheel and a synchronous belt, a linkage block is connected to the reciprocating screw rod, a cleaning brush is connected to the linkage block, a driven gear is sleeved outside the cleaning brush, a rack is connected to the driven gear, an adjusting assembly is arranged on one side of the insulating shell, and the adjusting assembly comprises a hydraulic cylinder. The two friction clutch plates are separated and closed through the adjusting assembly. After the two cylinders are opened, the two insulating plates are separated, and the limiting of the friction clutch plates is ended. After the hydraulic cylinder is opened, the transmission rod is pulled back through the push plate, so that the two friction clutch plates are separated, and the heat in the phase change heat storage material layer is prevented from being dissipated to the outside through the transmission structure. After the other two cylinders are opened, the other two insulating plates are closed, so that the hot air is prevented from being dissipated to the outside.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of thermal power plant supporting facilities, in particular to a waste heat recovery thermal power plant energy storage device. BACKGROUND

[0002] The working principle of thermal power plant is the same as that of thermal power plant, both of which rely on fuel to heat water to produce steam to drive the turbine of steam turbine to rotate to generate electricity, but thermal power plant has an additional process, that is, the residual hot water after power generation is heated again through pipeline to provide heating for facilities such as factory building and residential building. When the thermal power plant is working, fuel combustion will produce a large amount of flue gas and wastewater, and the flue gas and wastewater contain heat. In order to avoid waste of resources, the heat in the flue gas is usually transferred to the phase change heat storage material through the waste heat recovery equipment, and then the heat is stored by the phase change heat storage material for subsequent preheating of water to make the water vaporize faster, thereby reducing the consumption of fuel.

[0003] The existing application with the application number CN201911004379.2 relates to a waste heat recovery thermal power plant energy storage method and device, which belongs to the technical field of waste heat recovery, and comprises a conveying pipe, a heating tank and a heat storage box. The bottom end of the conveying pipe is fixedly connected with a recovery pipe, a low-temperature pipe and a high-temperature pipe through a four-way joint, and the inside of the recovery pipe is fixedly connected with a first electromagnetic valve. The inside of the low-temperature pipe is fixedly connected with a second electromagnetic valve, and the inside of the high-temperature pipe is fixedly connected with a third electromagnetic valve. The waste heat recovery thermal power plant energy storage method and device have different recovery and utilization methods for waste heat gas at different temperatures, can classify and utilize waste heat at different temperatures, reduce the working pressure of the waste heat recovery and energy storage device, combine the heating water tank device with the heat storage and heat release device, significantly improve the waste heat recovery utilization rate, improve the practicality of the device, the phase change heat storage material is heated more uniformly, improve the utilization rate of the heat storage material, and improve the heat storage efficiency.

[0004] However, in the technical solution, the rotating rod is always connected with the output end of the motor, and the motor is in the external environment, so that when the phase change heat storage material stores heat, the heat is transferred to the external environment through the rotating rod, causing heat loss and waste of resources. At the same time, the heat is easily transferred to the inside of the motor, causing the temperature in the motor to rise and accelerating the aging of the circuit, which is inconvenient to use. In addition, the flue gas contains a large amount of smoke dust and the wastewater contains scale, so that the surface of the heat storage cylinder is easily covered with smoke dust or scale, affecting the heat transfer between the flue gas or wastewater and the phase change heat storage material, reducing the heat recovery efficiency, and being inconvenient to use. SUMMARY

[0005] Therefore, the present application aims to provide a waste heat recovery thermal power plant energy storage device to solve the technical problems that heat is easily dissipated to the external environment or the inside of the motor through the transmission rod, and the surface of the heat storage cylinder is easily covered with smoke dust or scale.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a waste heat recovery thermal power plant energy storage device, comprising a heat insulation shell and a rotating sleeve, a cleaning assembly is arranged in the heat insulation shell, the cleaning assembly comprises a reciprocating screw rod, one end of the reciprocating screw rod is connected with a synchronous wheel and a synchronous belt, a linkage block is connected to the reciprocating screw rod, a cleaning brush is connected to the linkage block, a driven gear is sleeved outside the cleaning brush, a rack is connected to the driven gear, an adjusting assembly is arranged on one side of the heat insulation shell, the adjusting assembly comprises a hydraulic cylinder, four cylinders are installed in the heat insulation shell, heat insulation plates are connected to the output ends of the cylinders through piston rods, a transmission rod is connected in the rotating sleeve, a push plate is connected to the transmission rod, friction clutches are connected to the transmission rod and the heat insulation shell, and transmission gears are sleeved outside the friction clutches and the rotating sleeve.

[0007] By adopting the above technical scheme, the two heat insulation plates are separated by the two cylinders of the adjusting assembly to end the limiting of the friction clutches, the transmission rod is pulled back by the push plate to separate the two friction clutches after the hydraulic cylinder is opened, so that the heat in the phase change heat storage material layer is prevented from being dissipated to the outside through the transmission structure, the other two heat insulation plates are closed after the other two cylinders are opened, the reciprocating screw rod is driven to rotate by the synchronous wheel and the synchronous belt of the cleaning assembly, the linkage block drives the cleaning brush and the driven gear to move back and forth, the driven gear is engaged with the rack during back and forth movement to drive the cleaning brush to rotate, and the cleaning brush rotates to cooperate with the rotation of the heat storage cylinder, so that the entire surface of the heat storage cylinder can be cleaned.

[0008] Further, the heat insulation shell is connected with a heat storage cylinder, a plurality of screen cylinders are connected in the heat storage cylinder, phase change heat storage material layers are arranged in the heat storage cylinder and the plurality of screen cylinders, an inlet is connected to the top of the heat insulation shell, an outlet is connected to the outer surface of the heat insulation shell, and heat exchange pipes are connected in the heat insulation shell.

[0009] By adopting the above technical scheme, the output end of the motor drives one transmission gear to rotate after the motor is started, then the rotating sleeve, the transmission rod and one friction clutch are driven to rotate through the engagement of the two transmission gears, then the other transmission gear is driven to rotate by the friction force of the two friction clutches, and then the heat storage cylinder is driven to rotate through the engagement of the other two transmission gears, so that the phase change heat storage material layer can be uniformly heated after the heat storage cylinder rotates.

[0010] Further, the heat insulation shell is connected with a heat storage cylinder, a plurality of screen cylinders are connected in the heat storage cylinder, phase change heat storage material layers are arranged in the heat insulation cylinder and the plurality of screen cylinders, an inlet is connected to the top of the heat insulation shell, an outlet is connected to the outer surface of the heat insulation shell, and heat exchange pipes are connected in the heat insulation shell.

[0011] By adopting the technical scheme, the motor drives a transmission gear to rotate after starting, and then the two transmission gears mesh to drive the rotating sleeve, the transmission rod and one friction clutch plate to rotate, and then the two friction clutch plates drive another transmission gear to rotate through friction, and then the other two transmission gears mesh to drive the heat storage cylinder to rotate, so that the phase change heat storage material layer can be uniformly heated after the heat storage cylinder rotates.

[0012] Further, the linkage block is penetrated by guide rods on both sides, and the synchronous wheel and the synchronous belt are connected to one side of the heat storage cylinder.

[0013] By adopting the technical scheme, the motor drives a transmission gear to rotate after starting, and then the two transmission gears mesh to drive the rotating sleeve, the transmission rod and one friction clutch plate to rotate, and then the two friction clutch plates drive another transmission gear to rotate through friction, and then the other two transmission gears mesh to drive the heat storage cylinder to rotate, so that the phase change heat storage material layer can be uniformly heated after the heat storage cylinder rotates.

[0014] Further, the control panel is installed on the heat insulation shell, and the control panel is electrically connected with the hydraulic cylinder, the motor and the air cylinder.

[0015] By adopting the technical scheme, the staff opens or closes the hydraulic cylinder, the motor and the air cylinder through the control panel, the two air cylinders are opened to separate the two heat insulation plates to end the limiting of the friction clutch plate, and the other two air cylinders are opened to close the other two heat insulation plates, so that the hot air is prevented from being emitted to the outside.

[0016] Further, the rotating sleeve is rotationally connected with the support through the rotating shaft, and the transmission rod is slidingly connected with the rotating sleeve.

[0017] By adopting the technical scheme, the hydraulic cylinder is opened to pull the transmission rod back through the push plate to separate the two friction clutch plates, so that the heat in the phase change heat storage material layer is prevented from being emitted to the outside through the transmission structure.

[0018] Further, the linkage block is threadedly connected with the reciprocating screw rod, the linkage block is slidingly connected with the guide rod, and the driven gear is meshed with the rack.

[0019] By adopting the technical scheme, the motor drives a transmission gear to rotate after starting, and then the two transmission gears mesh to drive the rotating sleeve, the transmission rod and one friction clutch plate to rotate, and then the two friction clutch plates drive another transmission gear to rotate through friction, and then the other two transmission gears mesh to drive the heat storage cylinder to rotate, so that the phase change heat storage material layer can be uniformly heated after the heat storage cylinder rotates.

[0020] Further, grooves adapted to the transmission rod are formed in the two heat insulation plates, and the diameter of one transmission gear is larger than that of the other transmission gear.

[0021] By adopting the technical scheme, the recess is arranged to facilitate reduction of heat dissipation to the outside when the transmission rod rotates, and the two transmission gears are different in size to increase the torque to avoid friction clutch plate idling and wear caused by too small torque.

[0022] In summary, the present application has the following advantages:

[0023] 1. The present application adjusts the two friction clutch plates to separate and close through the adjusting assembly, the two heat insulation plates are separated to limit the friction clutch plate after the two cylinders are opened, the transmission rod is pulled back through the push plate after the hydraulic cylinder is opened, so that the two friction clutch plates are separated, thereby avoiding heat dissipation of the phase change heat storage material layer to the outside through the transmission structure, and the other two heat insulation plates are closed after the other two cylinders are opened, thereby avoiding heat dissipation to the outside;

[0024] 2. The present application avoids that the smoke or scale is adhered to the surface of the heat storage cylinder through the cleaning assembly, the reciprocating screw rod is rotated through the synchronous wheel and synchronous belt while the heat storage cylinder rotates, so that the linkage block drives the cleaning brush and the driven gear to move left and right, the driven gear is engaged with the rack while moving left and right, so as to drive the cleaning brush to rotate, the cleaning brush is rotated to cooperate with the rotation of the heat storage cylinder, so as to facilitate cleaning of the entire surface of the heat storage cylinder, and avoid that the smoke or scale is adhered to the heat storage cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the device structure of the present application;

[0026] Figure 2 It is a schematic diagram of the device cross-section structure of the present application;

[0027] Figure 3 It is a schematic diagram of the friction clutch plate separation structure of the present application;

[0028] Figure 4 It is a schematic diagram of the heat insulation plate structure of the present application;

[0029] Figure 5 It is a schematic diagram of the rotation sleeve explosion structure of the present application.

[0030] In the figure: 1, heat insulation shell; 2, control panel; 3, inlet; 4, heat exchange pipe; 5, outlet; 6, adjusting assembly; 601, support; 602, hydraulic cylinder; 603, push plate; 604, rotation sleeve; 605, transmission rod; 606, motor; 607, transmission gear; 608, friction clutch plate; 609, cylinder; 610, heat insulation plate; 7, cleaning assembly; 701, synchronous wheel and synchronous belt; 702, reciprocating screw rod; 703, guide rod; 704, linkage block; 705, cleaning brush; 706, driven gear; 707, rack; 8, heat storage cylinder; 9, screen cylinder; 10, phase change heat storage material layer. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0032] The embodiments of the present application will be described below according to the overall structure of the present application.

[0033] A waste heat recovery thermal power plant energy storage device, as shown in Figure 1 、 2 , 3, 4 and 5, comprises a heat insulation shell 1 and a rotating sleeve 604, a cleaning assembly 7 is arranged in the heat insulation shell 1, which facilitates cleaning the surface of the heat storage cylinder 8, the cleaning assembly 7 comprises a reciprocating screw rod 702, one end of the reciprocating screw rod 702 is connected with a synchronous wheel and a synchronous belt 701, a linkage block 704 is connected to the reciprocating screw rod 702, a cleaning brush 705 is connected to the linkage block 704, the heat storage cylinder 8 drives the reciprocating screw rod 702 to rotate through the synchronous wheel and the synchronous belt 701, the reciprocating screw rod 702 is threadedly connected with the linkage block 704, so that the reciprocating screw rod 702 drives the linkage block 704 to move back and forth after rotating, and the cleaning brush 705 is sleeved with a driven gear 706 outside, the driven gear 706 is connected with a rack 707, the cleaning brush 705 and the driven gear 706 move back and forth when the linkage block 704 moves back and forth, and the driven gear 706 meshes with the rack 707 while moving back and forth, thereby driving the cleaning brush 705 to rotate, an adjusting assembly 6 is arranged on one side of the heat insulation shell 1, the adjusting assembly 6 comprises a hydraulic cylinder 602, four air cylinders 609 are installed in the heat insulation shell 1, the output ends of two air cylinders 609 drive two heat insulation plates 610 to separate after being started, so as to end the limiting of the friction clutch plate 608, the output ends of the air cylinders 609 are connected with the heat insulation plates 610 through piston rods, the output ends of the other two air cylinders 609 drive the other two heat insulation plates 610 to adhere after being started, so as to avoid heat dissipation, a transmission rod 605 is connected in the rotating sleeve 604, a push plate 603 is connected to the transmission rod 605, the transmission rod 605 and the heat insulation shell 1 are both connected with the friction clutch plate 608, the two friction clutch plates are respectively a clutch flywheel and a clutch driven disc with a friction plate, the output end of the hydraulic cylinder 602 drives the push plate 603 to displace through a piston rod after being started, so as to make the transmission rod 605 move to the right, the transmission rod 605 moves to the right, so that the two friction clutch plates 608 are separated, the transmission gear 607 is sleeved outside the friction clutch plate 608 and the rotating sleeve 604, which facilitates torque transmission.

[0034] Specific, the heat-insulating shell 1 is connected with the heat storage cylinder 8, which facilitates heat transfer and heat storage. The heat storage cylinder 8 is connected with a plurality of sieve cylinders 9, and the heat storage cylinder 8 and the plurality of sieve cylinders 9 are both provided with a phase change heat storage material layer 10. The heat storage cylinder 8 transfers the heat in the hot fluid to the phase change heat storage material layer 10, so that the solid heat storage material becomes liquid heat storage material to store heat. The heat-insulating shell 1 is connected with an inlet 3 at the top, and is connected with an outlet 5 on the outer surface. The hot fluid flows through the inlet 3 and the outlet 5 in the device. The heat-insulating shell 1 is connected with a heat exchange pipe 4, through which the cold fluid flows to take away the heat in the heat storage cylinder 8. The heat-insulating shell 1 is provided with a control panel 2, and the control panel 2 is electrically connected with a hydraulic cylinder 602, a motor 606 and a gas cylinder 609. The staff opens or closes the hydraulic cylinder 602, the motor 606 and the gas cylinder 609 through the control panel 2.

[0035] Specific, the heat-insulating shell 1 is connected with the heat storage cylinder 8, which facilitates heat transfer and heat storage. The heat storage cylinder 8 is connected with a plurality of sieve cylinders 9, and the heat storage cylinder 8 and the plurality of sieve cylinders 9 are both provided with a phase change heat storage material layer 10. The heat storage cylinder 8 transfers the heat in the hot fluid to the phase change heat storage material layer 10, so that the solid heat storage material becomes liquid heat storage material to store heat. The heat-insulating shell 1 is connected with an inlet 3 at the top, and is connected with an outlet 5 on the outer surface. The hot fluid flows through the inlet 3 and the outlet 5 in the device. The heat-insulating shell 1 is connected with a heat exchange pipe 4, through which the cold fluid flows to take away the heat in the heat storage cylinder 8. The heat-insulating shell 1 is provided with a control panel 2, and the control panel 2 is electrically connected with a hydraulic cylinder 602, a motor 606 and a gas cylinder 609. The staff opens or closes the hydraulic cylinder 602, the motor 606 and the gas cylinder 609 through the control panel 2.

[0036] Specific, the heat-insulating shell 1 is connected with the heat storage cylinder 8, which facilitates heat transfer and heat storage. The heat storage cylinder 8 is connected with a plurality of sieve cylinders 9, and the heat storage cylinder 8 and the plurality of sieve cylinders 9 are both provided with a phase change heat storage material layer 10. The heat storage cylinder 8 transfers the heat in the hot fluid to the phase change heat storage material layer 10, so that the solid heat storage material becomes liquid heat storage material to store heat. The heat-insulating shell 1 is connected with an inlet 3 at the top, and is connected with an outlet 5 on the outer surface. The hot fluid flows through the inlet 3 and the outlet 5 in the device. The heat-insulating shell 1 is connected with a heat exchange pipe 4, through which the cold fluid flows to take away the heat in the heat storage cylinder 8. The heat-insulating shell 1 is provided with a control panel 2, and the control panel 2 is electrically connected with a hydraulic cylinder 602, a motor 606 and a gas cylinder 609. The staff opens or closes the hydraulic cylinder 602, the motor 606 and the gas cylinder 609 through the control panel 2.

[0037] The implementation principle of the embodiment is that: first, the motor 606 drives a transmission gear 607 to rotate after being started, and then the two transmission gears 607 are engaged to rotate the rotating sleeve 604, the transmission rod 605 and a friction clutch plate 608, and then the two friction clutch plates 608 drive another transmission gear 607 to rotate through friction, and then the other two transmission gears 607 are engaged to drive the heat storage cylinder 8 to rotate. Since the diameter of one of the two transmission gears 607 is larger than that of the other transmission gear 607, the torque is increased to avoid the friction clutch plate 608 from idling and wearing due to too small torque. The rotation of the heat storage cylinder 8 allows the phase change heat storage material layer 10 to be uniformly heated;

[0038] The heat storage cylinder 8 exchanges heat. During heat storage, the hot fluid enters through the inlet 3 and contacts the heat storage cylinder 8, and then the heat storage cylinder 8 transfers the heat in the hot fluid to the phase change heat storage material layer 10, so that the solid heat storage material becomes liquid heat storage material to store heat. After heat exchange, the hot fluid is discharged through the outlet 5.

[0039] The heat storage cylinder 8 is cleaned. The heat storage cylinder 8 is driven to rotate by the reciprocating screw rod 702 through the synchronous belt 701 and the synchronous wheel. Since the linkage block 704 is threadedly connected with the reciprocating screw rod 702, the reciprocating screw rod 702 is rotated to drive the linkage block 704 to move left and right reciprocally. When the linkage block 704 moves left and right reciprocally, it drives the cleaning brush 705 and the driven gear 706 to move left and right reciprocally. The driven gear 706 is engaged with the rack 707 while moving left and right reciprocally, thereby driving the cleaning brush 705 to rotate. The cleaning brush 705 moves left and right reciprocally while rotating to clean the surface of the heat storage cylinder 8.

[0040] The heat storage cylinder 8 is heat stored. After the motor 606 is turned off, the cleaning brush 705 and the heat storage cylinder 8 stop moving. The two cylinders 609 are started, and the output ends of the two cylinders 609 drive the two heat insulation plates 610 to separate to end the limiting of the friction clutch plate 608 through the piston rods. The hydraulic cylinder 602 is started, and the output end of the hydraulic cylinder 602 drives the push plate 603 to displace through the piston rod, so that the transmission rod 605 moves to the right. The transmission rod 605 moves to the right to separate the two friction clutch plates 608, so that the heat in the phase change heat storage material layer 10 is prevented from being dissipated to the outside through the transmission rod 605. The other two cylinders 609 are started, and the output ends of the other two cylinders 609 drive the other two heat insulation plates 610 to adhere through the piston rods, so as to prevent the heat from being dissipated.

[0041] Although the embodiments of the present application have been shown and described, the specific embodiments are merely exemplary and are not to be construed as limiting the present application, and the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations to the embodiments without creative contribution after reading the specification, and as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A residual heat recovery thermal power plant energy storage device comprising a thermally insulated outer shell (1) and a rotating sleeve (604), characterized in that: The heat insulation shell (1) is provided with a cleaning assembly (7), the cleaning assembly (7) comprises a reciprocating screw rod (702), one end of the reciprocating screw rod (702) is connected with a synchronous wheel and a synchronous belt (701), the reciprocating screw rod (702) is connected with a linkage block (704), the linkage block (704) is penetrated by guide rods (703) on both sides, the linkage block (704) is threadedly connected with the reciprocating screw rod (702), the linkage block (704) is slidably connected with the guide rods (703), the linkage block (704) is connected with a cleaning brush (705), the cleaning brush (705) is sleeved with a driven gear (706) outside, the driven gear (706) is connected with a rack (707), and the driven gear (706) is engaged with the rack (707), one side of the heat insulation shell (1) is provided with an adjusting assembly (6), the adjusting assembly (6) comprises a hydraulic cylinder (602), four cylinders (609) are installed in the heat insulation shell (1), the output end of the cylinder (609) is connected with a heat insulation plate (610) through a piston rod, the rotating sleeve (604) is connected with a transmission rod (605), recesses matched with the transmission rod (605) are formed in the two heat insulation plates (610), and the transmission rod (605) is slidably connected with the rotating sleeve (604), the transmission rod (605) is connected with a push plate (603), the transmission rod (605) and the heat insulation shell (1) are both connected with a friction clutch plate (608), the friction clutch plate (608) and the rotating sleeve (604) are both sleeved with transmission gears (607), and the diameter of one transmission gear (607) is larger than that of the other transmission gear (607); the heat insulation shell (1) is connected with a heat storage cylinder (8), one side of the synchronous wheel and the synchronous belt (701) is connected with the heat storage cylinder (8), a motor (606) is installed on one side of the heat insulation shell (1), and the output end of the motor (606) and the outside of the heat storage cylinder (8) are both connected with transmission gears (607), one side of the heat insulation shell (1) is connected with a support (601), and the rotating sleeve (604) is rotatably connected with the support (601) through a rotating shaft.

2. A waste heat recovery thermal power plant energy storage device according to claim 1, characterized in that: A plurality of sieve cylinders (9) are connected in the heat storage cylinder (8), phase change heat storage material layers (10) are arranged in the heat storage cylinder (8) and the plurality of sieve cylinders (9), an inlet (3) is connected to the top of the heat insulation shell (1), an outlet (5) is connected to the outer surface of the heat insulation shell (1), and heat exchange pipes (4) are connected in the heat insulation shell (1).

3. A thermal storage device for a waste heat recovery combined heat and power plant according to claim 1, characterized in that: A control panel (2) is installed on the heat insulation shell (1), and the control panel (2) is electrically connected with the hydraulic cylinder (602), the motor (606) and the cylinder (609) respectively.

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