Heat energy recycling device of heat energy power equipment
By designing a thermal energy recycling device, using a spiral tube to absorb the flue gas heat and the cinder chamber to heat the water solution, the problem of difficulty in utilizing flue gas and cinder heat in the prior art is solved, and efficient heat utilization and resource conservation are achieved.
Patent Information
- Application Number
- CN202421928675.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-09
AI Technical Summary
Existing thermal power equipment is difficult to effectively utilize the heat in flue gas and cinder, resulting in waste of coal resources, increasing the cost of thermal energy generation, and low heating efficiency.
A thermal energy recycling device is designed, including a combustion chamber, a heating tank, a preheating mechanism and a conveying mechanism. The preheating mechanism absorbs the heat in the flue gas through the spiral tube and heats the aqueous solution through the cinder chamber with the heat of the cinder; the conveying mechanism transports the collected cinder to the cinder chamber, further improving the heat utilization efficiency.
Effectively utilize the heat in flue gas and cinder, reduce the waste of coal resources, improve the efficiency of heat generation, and reduce the heating time and amount of coal required.
Smart Images
Figure CN222964142U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thermal power equipment, in particular to a device for recycling the heat energy of a thermal power equipment. Background Art
[0002] A thermal power equipment refers to a device that can convert heat energy into kinetic energy. The sources of heat energy include the heat energy released during the combustion of fuels such as coal, petroleum, natural gas, oil shale, and biomass energy. Thermal power equipment includes boilers, internal combustion engines, steam engines, etc.
[0003] At present, most boilers use coal blocks as the source of heat energy. However, the flue gas discharged during the combustion of coal blocks contains some heat, and the coal cinder generated after the combustion of coal blocks also contains heat. However, it is difficult for the existing thermal power equipment to utilize the heat in the flue gas and coal cinder, resulting in a waste of coal resources, increasing the cost of heat energy generation. Moreover, when the existing boilers are heated, a large amount of heat is required to raise the temperature of the aqueous solution in the boiler from low temperature to high temperature for heating. It is difficult for the existing thermal energy equipment to preheat the aqueous solution, with low heating efficiency and a large amount of coal required. Summary of the Utility Model
[0004] To solve the above technical problems, a device for recycling the heat energy of a thermal power equipment is provided. This technical solution solves the problems of difficult utilization of the heat in the flue gas and coal cinder, resulting in waste of coal resources, increased heat energy generation, and high cost of the existing thermal energy equipment that is difficult to preheat the aqueous solution.
[0005] To achieve the above purposes, the technical solution adopted by the utility model is as follows:
[0006] A device for recycling the heat energy of a thermal power equipment, including a combustion chamber. A heating tank is fixedly installed at the upper end of the combustion chamber. A conveying mechanism is installed inside the combustion chamber. The conveying mechanism includes a conveying pipe, and the conveying pipe is fixedly installed inside the combustion chamber. The upper end of the conveying pipe is fixedly connected with a collecting hopper. A preheating mechanism is arranged on the right side of the combustion chamber. The preheating mechanism includes a preheating tank and a coal cinder chamber. A spiral pipe is fixedly connected inside the preheating tank. A smoke exhaust pipe is fixedly connected to the outside of the combustion chamber. The lower end of the spiral pipe is fixedly connected with the smoke exhaust pipe, and the upper end of the spiral pipe extends to the outside of the preheating tank. The coal cinder chamber is fixedly installed at the lower end of the preheating tank. One end of the conveying pipe away from the combustion chamber is connected with the coal cinder chamber.
[0007] Preferably, a water pump is fixedly installed on the upper end of the preheating tank, a water pumping pipe is fixedly connected to the interior of the preheating tank, the upper end of the water pumping pipe extends to the upper end of the preheating tank and is fixedly connected to the water pump, the upper end of the water pump is fixedly connected to a connecting pipe, and the end of the connecting pipe away from the water pump is fixedly connected to the heating tank.
[0008] Preferably, a feed hopper is fixedly connected to the upper end of the combustion chamber, a rotating shaft is rotatably connected to the interior of the combustion chamber via a bearing, a plurality of flip rods are fixedly connected to the outer side of the rotating shaft, a handle is fixedly connected to the rotating shaft extending to the outer side of the combustion chamber, a cinder filter is fixedly connected to the interior of the combustion chamber, and the cinder filter is located at the upper end of the collecting hopper.
[0009] Preferably, the interior of the delivery pipe is rotatably connected to a Jiaolong shaft, the left end of the delivery pipe is fixedly connected to a delivery motor, and the output end of the delivery motor extends to the interior of the delivery pipe and is fixedly connected to the Jiaolong shaft.
[0010] Preferably, a storage groove is slidably connected to the inside of the cinder chamber, and a moving rod is fixedly connected to the outside of the storage groove.
[0011] Preferably, a drain pipe is fixedly connected to the lower end of the heating tank, and a valve is installed inside the drain pipe.
[0012] Preferably, an exhaust fan is fixedly installed inside the upper end of the spiral tube.
[0013] Compared with the prior art, the utility model has the following beneficial effects: by setting up a preheating mechanism, the smoke generated by combustion enters the interior of the spiral tube through the smoke exhaust pipe and is discharged from the other end of the spiral tube, the spiral tube can increase the time the smoke stays inside the spiral tube, which is conducive to the full conduction of the heat contained in the smoke to the spiral tube, and the aqueous solution inside the preheating tank wraps the spiral tube, thereby absorbing the heat of the smoke inside the spiral tube, so that the aqueous solution inside the preheating tank is heated, and then the heat in the smoke is utilized to prevent the waste of heat energy;
[0014] By setting up a conveying mechanism, the coal slag generated by combustion in the combustion chamber can be collected from the collecting hopper to the inside of the conveying pipe, and the collected coal slag can be conveyed to the inside of the coal slag chamber, and the preheating tank is heated by the residual heat of the coal slag, so that the water solution inside the preheating tank is heated, which effectively utilizes the remaining heat in the coal slag and reduces the waste of coal resources;
[0015] By setting up a water pump, the preheated aqueous solution inside the preheating tank can be transported to the inside of the heating tank, thereby reheating and raising the temperature of the aqueous solution inside the preheating tank to reach the required temperature. Since the aqueous solution inside the preheating tank has been preheated, it has a higher temperature than the external aqueous solution. Therefore, more heat can be saved when heating the preheated aqueous solution, thereby reducing the consumption of coal and saving the heating time. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model;
[0017] Figure 2 It is a schematic diagram of the structure of the preheating mechanism of the present utility model;
[0018] Figure 3 It is a schematic diagram of the structure of the turning rod of the present utility model;
[0019] Figure 4 It is a schematic diagram of the structure of the conveying mechanism of the present utility model.
[0020] The reference numerals in the figure are:
[0021] 1. Combustion chamber; 101. Heating tank; 102. Smoke exhaust pipe; 103. Drain pipe; 104. Valve; 105. Handle; 106. Rotating shaft; 107. Turning rod; 108. Coal cinder filter screen; 109. Feed hopper;
[0022] 2. Preheating mechanism; 201. Preheating tank; 202. Spiral pipe; 203. Exhaust fan; 204. Water pump; 205. Water suction pipe; 206. Connecting pipe; 207. Coal cinder chamber; 208. Storage tank; 209. Moving rod;
[0023] 3. Conveying mechanism; 301. Conveying pipe; 302. Conveying motor; 303. Screw shaft; 304. Aggregating hopper. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.
[0025] Embodiment 1
[0026] Please refer to Figures 1-4As shown in the figure, a heat energy recycling device for a heat energy power equipment includes a combustion chamber 1. A heating tank 101 is fixedly installed at the upper end of the combustion chamber 1. A conveying mechanism 3 is installed inside the combustion chamber 1. The conveying mechanism 3 includes a conveying pipe 301. The conveying pipe 301 is fixedly installed inside the combustion chamber 1. The upper end of the conveying pipe 301 is fixedly connected with a collecting hopper 304. A preheating mechanism 2 is arranged on the right side of the combustion chamber 1. The preheating mechanism 2 includes a preheating tank 201 and a cinder chamber 207. A spiral pipe 202 is fixedly connected inside the preheating tank 201. A smoke exhaust pipe 102 is fixedly connected to the outside of the combustion chamber 1. The lower end of the spiral pipe 202 is fixedly connected with the smoke exhaust pipe 102. The upper end of the spiral pipe 202 extends to the outside of the preheating tank 201. The cinder chamber 207 is fixedly installed at the lower end of the preheating tank 201. One end of the conveying pipe 301 away from the combustion chamber 1 is connected to the cinder chamber 207.
[0027] In this solution, aqueous solutions are added to both the inside of the heating tank 101 and the preheating tank 201. Coal can be burned inside the combustion chamber 1. The heat generated by the combustion can heat the heating tank 101, thereby heating and raising the temperature of the aqueous solution inside the heating tank 101. The flue gas generated by the combustion enters the inside of the spiral pipe 202 through the smoke exhaust pipe 102 and is discharged from the other end of the spiral pipe 202. The spiral pipe 202 can increase the absorption effect of the aqueous solution on the heat in the flue gas. The aqueous solution inside the preheating tank 201 wraps the spiral pipe 202, thereby absorbing the heat of the flue gas inside the spiral pipe 202, making the aqueous solution inside the preheating tank 201 increase in temperature. And the cinder generated by the combustion is collected into the inside of the conveying pipe 301 by the collecting hopper 304, and the collected cinder is conveyed into the inside of the cinder chamber 207. The preheating tank 201 is heated by the remaining heat of the cinder, making the aqueous solution inside the preheating tank 201 increase in temperature. The remaining heat in the flue gas and cinder is effectively utilized, reducing the waste of coal resources.
[0028] Embodiment 2
[0029] Please refer to Figure 2 As shown in the figure, a water pump 204 is fixedly installed at the upper end of the preheating tank 201. A water suction pipe 205 is fixedly connected inside the preheating tank 201. The upper end of the water suction pipe 205 extends to the upper end of the preheating tank 201 and is fixedly connected with the water pump 204. The upper end of the water pump 204 is fixedly connected with a connecting pipe 206. One end of the connecting pipe 206 away from the water pump 204 is fixedly connected with the heating tank 101.
[0030] In the present solution, the aqueous solution in the heating tank 101 is discharged to the outside after heating is completed. The heat remaining in the flue gas and coal ash can only preheat the aqueous solution in the preheating tank 201, but cannot make the aqueous solution reach the required temperature. The water pump 204 is electrically connected to the external power supply. The water pump 204 can transport the preheated aqueous solution in the preheating tank 201 to the inside of the heating tank 101 through the pumping pipe 205 and the connecting pipe 206, so as to heat the aqueous solution in the preheating tank 201 again to reach the required temperature. Since the aqueous solution in the preheating tank 201 has been preheated, it has a higher temperature than the external aqueous solution. Therefore, when the heating tank 101 heats the aqueous solution in the preheating tank 201 to the required temperature, the time required is shorter and the heat required is less, thereby reducing the required coal combustion amount, increasing the heating efficiency of the heating tank 101, and being green and environmentally friendly.
[0031] Example 3
[0032] Please refer to Figure 3-4, the upper end of the combustion chamber 1 is fixedly connected to a feed hopper 109, the interior of the combustion chamber 1 is rotatably connected to a rotating shaft 106 through a bearing, the outer side of the rotating shaft 106 is fixedly connected to a plurality of flip rods 107, the rotating shaft 106 extends to the outer side of the combustion chamber 1 and is fixedly connected to a handle 105, the interior of the combustion chamber 1 is fixedly connected to a coal slag filter 108, and the coal slag filter 108 is located at the upper end of the collecting hopper 304.
[0033] The inside of the delivery pipe 301 is rotatably connected to the dragon shaft 303 , the left end of the delivery pipe 301 is fixedly connected to the delivery motor 302 , and the output end of the delivery motor 302 extends to the inside of the delivery pipe 301 and is fixedly connected to the dragon shaft 303 .
[0034] A storage groove 208 is slidably connected to the inside of the cinder chamber 207 , and a moving rod 209 is fixedly connected to the outside of the storage groove 208 .
[0035] In this solution, coal enters the combustion chamber 1 through the feed hopper 109 for combustion, and the coal slag filter 108 can separate the coal slag from the incompletely burned coal. The coal slag is filtered to the lower end of the coal slag filter 108 and is collected by the collecting hopper 304 to the inside of the conveying pipe 301, while the incompletely burned coal continues to burn above the coal slag filter 108. The handle 105 can rotate the rotating shaft 106 to rotate the turning rod 107, thereby turning the coal inside the combustion chamber 1, which is convenient for the complete combustion of the coal and the falling of the coal slag.
[0036] The conveying motor 302 is electrically connected to an external power supply. When the conveying motor 302 starts, it can drive the auger shaft 303 to rotate, thereby conveying the cinder. The cinder is conveyed into the interior of the cinder chamber 207 and stored in the storage tank 208. The residual heat in the cinder heats the preheating tank 201. The storage tank 208 can be moved to the outside of the cinder chamber 207 through the moving rod 209, and then the cinder that has lost heat is cleaned up.
[0037] Embodiment 4
[0038] Please refer to Figures 1-2 As shown, a drain pipe 103 is fixedly connected to the lower end of the heating tank 101, and a valve 104 is installed inside the drain pipe 103.
[0039] An exhaust fan 203 is fixedly installed inside the upper end of the spiral pipe 202.
[0040] In this solution, opening the valve 104 can cause the heated aqueous solution inside the heating tank 101 to be discharged to the outside through the drain pipe 103. The exhaust fan 203 is electrically connected to an external power supply. Starting the exhaust fan 203 can convey the flue gas generated by combustion inside the combustion chamber 1 to the inside of the spiral pipe 202 through the exhaust pipe 102 and discharge it from the upper end of the spiral pipe 202.
[0041] The working principle and usage process of the present utility model: First, add the aqueous solution into the heating tank 101 and the preheating tank 201, and add coal into the combustion chamber 1 through the feed hopper 109 for combustion, thereby heating the aqueous solution in the heating tank 101. At the same time, start the exhaust fan 203 and the conveying motor 302, so that the flue gas generated by combustion inside the combustion chamber 1 is conveyed to the inside of the spiral pipe 202 through the exhaust pipe 102 and discharged from the upper end of the spiral pipe 202. The aqueous solution inside the preheating tank 201 absorbs the heat of the flue gas inside the spiral pipe 202, causing the aqueous solution inside the preheating tank 201 to heat up. The conveying motor 302 starts and drives the auger shaft 303 to rotate, conveying the cinder into the interior of the cinder chamber 207 and storing it in the storage tank 208. The residual heat in the cinder heats the preheating tank 201. After the heating of the aqueous solution inside the heating tank 101 is completed, open the valve 104 to discharge the aqueous solution to the outside. Then close the valve 104 and start the water pump 204 to convey the preheated aqueous solution inside the preheating tank 201 to the inside of the heating tank 101, thereby reheating and raising the temperature of the aqueous solution inside the preheating tank 201 to the required temperature. After that, only need to add the aqueous solution into the preheating tank 201 for preheating, and then add the liquid inside the preheating tank 201 into the heating tank 101 for reheating again, which improves the heating efficiency of the heating tank 101 and reduces the coal consumption.
[0042] The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present utility model. Without departing from the spirit and scope of the present utility model, various changes and improvements will occur to the present utility model, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A heat energy recycling device for a thermal power plant, comprising a combustion chamber (1), characterized in that: A heating tank (101) is fixedly mounted on the upper end of the combustion chamber (1); a conveying mechanism (3) is installed inside the combustion chamber (1); the conveying mechanism (3) comprises a conveying pipe (301); the conveying pipe (301) is fixedly mounted inside the combustion chamber (1); a collecting hopper (304) is fixedly connected to the upper end of the conveying pipe (301); a preheating mechanism (2) is arranged on the right side of the combustion chamber (1); the preheating mechanism (2) comprises a preheating tank (201) and a slag chamber (204); 7), a spiral tube (202) is fixedly connected inside the preheating tank (201), a smoke exhaust pipe (102) is fixedly connected outside the combustion chamber (1), the lower end of the spiral tube (202) is fixedly connected to the smoke exhaust pipe (102), the upper end of the spiral tube (202) extends to the outside of the preheating tank (201), the cinder chamber (207) is fixedly installed at the lower end of the preheating tank (201), and the end of the conveying pipe (301) away from the combustion chamber (1) is connected to the cinder chamber (207).
2. A thermal energy recycling device for thermal power equipment according to claim 1, characterized in that: A water pump (204) is fixedly installed at the upper end of the preheating tank (201); a water pumping pipe (205) is fixedly connected to the interior of the preheating tank (201); the upper end of the water pumping pipe (205) extends to the upper end of the preheating tank (201) and is fixedly connected to the water pump (204); a connecting pipe (206) is fixedly connected to the upper end of the water pump (204); and one end of the connecting pipe (206) away from the water pump (204) is fixedly connected to the heating tank (101).
3. The heat energy recycling device for thermal power equipment according to claim 1, characterized in that: The upper end of the combustion chamber (1) is fixedly connected to a feed hopper (109); the interior of the combustion chamber (1) is rotatably connected to a rotating shaft (106) via a bearing; the outer side of the rotating shaft (106) is fixedly connected to a plurality of flipping rods (107); the rotating shaft (106) extends to the outer side of the combustion chamber (1) and is fixedly connected to a handle (105); the interior of the combustion chamber (1) is fixedly connected to a coal slag filter (108); the coal slag filter (108) is located at the upper end of the collecting hopper (304).
4. The heat energy recycling device for thermal power equipment according to claim 1, characterized in that: The inside of the delivery pipe (301) is rotatably connected to a Jiaolong shaft (303), the left end of the delivery pipe (301) is fixedly connected to a delivery motor (302), and the output end of the delivery motor (302) extends to the inside of the delivery pipe (301) and is fixedly connected to the Jiaolong shaft (303).
5. The heat energy recycling device for thermal power equipment according to claim 1, characterized in that: The interior of the cinder chamber (207) is slidably connected to a storage groove (208), and the outer side of the storage groove (208) is fixedly connected to a moving rod (209).
6. The heat energy recycling device for thermal power equipment according to claim 1, characterized in that: The lower end of the heating tank (101) is fixedly connected to a drain pipe (103), and a valve (104) is installed inside the drain pipe (103).
7. The thermal energy recycling device for thermal power equipment according to claim 1, characterized in that: An exhaust fan (203) is fixedly installed inside the upper end of the spiral tube (202).