A carbon kiln waste heat boiler

Abstract

The utility model discloses a carbon kiln waste heat boiler, comprising: a heat exchange furnace body, a heat source pipe, a heat conduction plate, a temperature difference power generation sheet, a refrigerant pipe, and an electric control module; the heat exchange furnace body comprises: an upper furnace cavity, a lower furnace cavity, a furnace body foot support, and a heat conduction filler; the upper furnace cavity is sealed and connected with the lower furnace cavity; the furnace body foot support is arranged at the lower end of the lower furnace cavity; the heat source pipe is arranged in the lower furnace cavity; the heat conduction filler is filled in the lower furnace cavity; the heat conduction filler covers the heat source pipe; the heat conduction plate is arranged on the upper end surface of the heat source pipe; the lower end surface of the temperature difference power generation sheet is attached to the upper end surface of the heat conduction plate; the lower end surface of the refrigerant pipe is attached to the upper end surface of the temperature difference power generation sheet; the temperature difference power generation sheet is connected to the battery through the charging control module; the temperature difference power generation sheet performs thermoelectric conversion to charge the battery; the refrigerant pipe in the technical solution cools the air, but the circulating agent or air is used for cooling the carbon kiln fired products; the electric energy converted by the thermoelectric conversion of the temperature difference power generation sheet is charged to the power storage device / battery through the electric control module.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbon kiln waste heat recycling equipment, and specifically relates to a carbon kiln waste heat boiler. Background Art

[0002] When the carbon kiln is fired, its internal temperature is above 1200 degrees, and a large amount of high-temperature flue gas is generated in the production process. After the carbon kiln flue gas treatment adopts dry desulfurization and SCR denitrification, the temperature of the exhaust flue gas is still around 150 degrees. It is reused by directly cooling and emptying, and dispersing the use of small waste heat boilers to heat water. This method has the disadvantages of direct waste of energy and poor scale of process production. It wastes the heat in the flue gas and causes energy waste. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problem and provide a carbon kiln waste heat boiler.

[0004] A carbon kiln waste heat boiler comprises: a heat exchange furnace body, a heat source tube, a heat conduction plate, a temperature difference power generation sheet, a refrigerant tube, and an electric control module; the heat exchange furnace body comprises: an upper furnace cavity, a lower furnace cavity, a furnace body foot support, and a heat conduction filler; the upper furnace cavity is sealed and locked with the lower furnace cavity; the furnace body foot support is arranged at the lower end of the lower furnace cavity; the heat source tube is arranged in the lower furnace cavity; the heat conduction filler is filled in the lower furnace cavity; the heat conduction filler covers the heat source tube; the heat conduction plate is arranged on the upper end surface of the heat source tube; the lower end surface of the temperature difference power generation sheet is attached to the upper end surface of the heat conduction plate; the lower end surface of the refrigerant tube is attached to the upper end surface of the temperature difference power generation sheet; the temperature difference power generation sheet is connected to the battery through a charging control module; the temperature difference power generation sheet converts thermoelectricity into battery charging; the refrigerant tube cools the cooling circulating agent or air in the tube, but the circulating agent or air is used for cooling the carbon kiln fired products.

[0005] The heat source pipe is provided with: a heat source access pipe opening, a heat source outlet pipe opening, and heat conducting fins; the heat source access pipe opening and the heat source outlet pipe opening are respectively arranged at two ends of the heat source pipe body; and the heat dissipation fins are arranged on the heat source pipe body.

[0006] The upper end surfaces of the heat-conducting fins are in the same horizontal plane or the heat-conducting fins are integrally formed; the heat source tube is provided with multiple S-shaped bends; there are multiple groups of heat-conducting plates, and the upper end surfaces of the heat-conducting fins are smooth end surfaces; the lower end surfaces of the multiple groups of heat-conducting plates are respectively attached to the upper part of the straight tube area between the two bends in the heat source tube 3.

[0007] The upper end surface of the heat conducting plate is on the same horizontal plane as the heat conducting filler, or the heat conducting plate is placed at a position slightly higher than the horizontal plane of the heat conducting filler.

[0008] Each heat conducting plate is provided with a temperature difference power generation sheet, and the temperature difference power generation sheets on each heat conducting plate are electrically connected to the electric control module after being arranged in parallel.

[0009] The refrigerant pipes are provided in three groups, and the three groups of refrigerant pipes have the same structure; the refrigerant pipes are respectively provided with: a refrigerant inlet pipe, a refrigerant outlet pipe, a cooling fin, and a three-way solenoid valve; the refrigerant inlet pipe and the refrigerant outlet pipe are respectively arranged at the two ends of the refrigerant pipe body; the cooling fins are arranged on the refrigerant pipe body; the cooling fins are integrally formed, and the lower end surface of the cooling fins is a smooth end surface.

[0010] The thermoelectric power generation sheet is a semiconductor chip based on the Seebeck effect principle; the thermoelectric power generation sheet is provided with a heat collecting end, an NP semiconductor layer and a cold end of the power generation sheet; the NP semiconductor layer is arranged between the heat collecting end and the cold end; the heat collecting end surface of the thermoelectric power generation sheet is attached to the upper end surface of the heat conducting plate; and the cold end of the thermoelectric power generation sheet is attached to the lower end surface of the cooling fin.

[0011] Thermal conductive silicone grease is applied between the heat conducting plate and the heat collecting end and between the cold end of the power generation sheet and the lower end surface of the cooling fin.

[0012] The technical solution provides a carbon kiln waste heat boiler, including: a heat exchange furnace body, a heat source tube, a heat conduction plate, a temperature difference power generation sheet, a refrigerant tube, and an electrical control module; the heat exchange furnace body includes: an upper furnace cavity, a lower furnace cavity, a furnace body foot support, and a heat conduction filler; the upper furnace cavity is sealed and connected to the lower furnace cavity; the furnace body foot support is arranged at the lower end of the lower furnace cavity; the heat source tube is arranged in the lower furnace cavity; the heat conduction filler is filled in the lower furnace cavity; the heat conduction filler covers the heat source tube; the heat conduction plate is arranged on the upper end surface of the heat source tube; the lower end surface of the temperature difference power generation sheet is attached to the upper end surface of the heat conduction plate; the lower end surface of the refrigerant tube is attached to the upper end surface of the temperature difference power generation sheet; the temperature difference power generation sheet is connected to the battery through the charging control module; the temperature difference power generation sheet thermoelectric conversion is used to charge the battery; the refrigerant tube in the technical solution cools the air, but the circulating agent or air is used for cooling the carbon kiln fired products; the electric energy converted by the thermoelectric conversion of the temperature difference power generation sheet is used to charge the storage device / battery through the electrical control module. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall schematic diagram of a carbon kiln waste heat boiler of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of a carbon kiln waste heat boiler of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of a thermoelectric conversion component of a carbon kiln waste heat boiler of the utility model;

[0016] Figure 4 This is a schematic diagram of the refrigerant pipe structure of a carbon kiln waste heat boiler of the utility model;

[0017] In the figure: 1. heat exchange furnace body, 11. upper furnace cavity, 12. lower furnace cavity, 13. furnace body foot support, 14. heat conduction filler, 3. heat source pipe, 31. heat source access pipe opening, 32. heat source outlet pipe opening, 33. heat conduction fins, 4. heat conduction plate, 5. temperature difference power generation sheet, 6. refrigerant pipe, 61. refrigerant access pipe, 62. refrigerant outlet pipe, 63. cooling fins, 64. three-way solenoid valve, 641. first pipe opening, 642. second pipe opening, 643. third pipe opening, 644. solenoid valve, 7. electric control module, 8. battery. DETAILED DESCRIPTION

[0018] The technical scheme will be further described clearly and completely below in conjunction with the accompanying drawings of the technical scheme. The described embodiments are only a part of the technical scheme, not all of the embodiments. Based on the technical scheme, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Example

[0019] See also Figures 1 to 4 As shown, a carbon kiln waste heat boiler comprises: a heat exchange furnace body 1, a heat source pipe 3, a heat conducting plate 4, a temperature difference power generation sheet 5, a refrigerant pipe 6, and an electric control module 7;

[0020] The heat exchange furnace body 1 comprises: an upper furnace cavity 11, a lower furnace cavity 12, a furnace body foot support 13, and a heat conduction filler 14; the upper furnace cavity 11 is sealed and locked with the lower furnace cavity 12; the furnace body foot support 13 is arranged at the lower end of the lower furnace cavity 12; the heat source tube 3 is arranged in the lower furnace cavity 12; the heat conduction filler 14 is filled in the lower furnace cavity 12; the heat conduction filler 14 covers the heat source tube 3; the heat conduction plate 4 is arranged on the upper end surface of the heat source tube 3; the lower end surface of the temperature difference power generation sheet 5 is attached to the upper end surface of the heat conduction plate 4; the lower end surface of the refrigerant tube 6 is attached to the upper end surface of the temperature difference power generation sheet 5; the temperature difference power generation sheet 5 is connected to the battery through the charging control module 7; the temperature difference power generation sheet 5 converts the thermoelectricity into charging for the battery 8; the refrigerant tube 6 cools the cooling circulating agent or air in the tube, but the circulating agent or air is used for cooling the carbon kiln fired products;

[0021] The heat source pipe 3 is provided with: a heat source inlet pipe opening 31, a heat source outlet pipe opening 32, and a heat conducting fin 33; the heat source inlet pipe opening 31 and the heat source outlet pipe opening 32 are respectively arranged at both ends of the heat source pipe 3; the heat conducting fin 33 is arranged on the pipe body of the heat source pipe 3;

[0022] The upper end surfaces of the heat-conducting fins 33 are on the same horizontal plane or the heat-conducting fins 33 are integrally formed; the upper end surfaces of the heat-conducting fins 33 are smooth end surfaces;

[0023] The heat source tube 3 is provided with a plurality of S-shaped bends; a plurality of heat conducting plates 4 are provided, and the plurality of heat conducting plates 4 are respectively arranged on the upper part of the straight tube area between the two bends in the heat source tube 3; the upper end surface of the heat conducting plate 4 is on the same horizontal plane as the heat conducting filler 14, or the position where the heat conducting plate 4 is placed is slightly higher than the horizontal plane of the heat conducting filler 14;

[0024] The heat-conducting filler 14 is a thermal insulation mortar containing 40% chlorine oxide;

[0025] The thermoelectric power generation sheet 5 is a semiconductor chip based on the Seebeck effect principle; the thermoelectric power generation sheet 5 is provided with a heat collecting end, a NP semiconductor layer and a cold end; the NP semiconductor layer is provided between the heat collecting end and the cold end of the power generation sheet; the heat collecting end surface of the thermoelectric power generation sheet 5 is attached to the upper end surface of the heat conducting plate 4;

[0026] The contact surface between the temperature difference power generation sheet 5 and the heat conducting plate 4 may be coated with thermal conductive silicone grease to increase thermal conductivity;

[0027] Each heat conducting plate 4 is provided with a temperature difference power generation sheet 5, and the temperature difference power generation sheets 5 on each heat conducting plate 4 are arranged in parallel and electrically connected to the electric control module 7;

[0028] The temperature of the flue gas in the heat source tube 3 will gradually decrease as it passes from the first heat conducting plate 4 to the last heat conducting plate 4. Therefore, the temperature of each heat conducting plate 4 will be different, resulting in different thermoelectric conversion rates. Therefore, multiple heat conducting plates 4 are provided for graded thermal power generation.

[0029] The refrigerant pipe 6 is provided with three groups, and the three groups of refrigerant pipes 6 have the same structure; the refrigerant pipe 6 is provided with: a refrigerant inlet pipe 61, a refrigerant outlet pipe 62, a cooling fin 63, and a three-way solenoid valve 64; the refrigerant inlet pipe 61 and the refrigerant outlet pipe 62 are respectively provided at both ends of the refrigerant pipe 6 body; the cooling fin 63 is provided on the refrigerant pipe 6 body;

[0030] The cooling fin 63 is integrally formed, and the lower end surface of the cooling fin 63 is a smooth end surface; the lower end surface of the cooling fin 63 is attached to the upper end surface of the cold end of the power generation sheet;

[0031] The contact surface between the lower end surface of the cooling fin 63 and the upper end surface of the cold end of the power generation sheet can be coated with thermal conductive silicone grease to increase thermal conductivity;

[0032] The refrigerant access pipes 61 of the three groups of refrigerant pipes 6 are all provided with three-way solenoid valves 64;

[0033] The three-way solenoid valve 64 is provided with a first pipe opening 641, a second pipe opening 642, a third pipe opening 643, and a solenoid valve 644; the first pipe opening 641 is flange-connected to the refrigerant access pipe 61; the second pipe opening 642 is flange-connected to the cooling pipe connected to the cooling zone of the carbon kiln fired product; the third pipe opening 643 is a refrigerant injection port, or the third pipe opening 643 is connected to the refrigerant supply pipe.

Claims

1. A carbon kiln waste heat boiler, comprising: A heat exchange furnace body (1), a heat source tube (3), a heat conduction plate (4), a temperature difference power generation sheet (5), a refrigerant tube (6), and an electric control module (7); characterized in that the heat exchange furnace body (1) comprises: an upper furnace cavity (11), a lower furnace cavity (12), a furnace body foot support (13), and a heat conduction filler (14); the upper furnace cavity (11) and the lower furnace cavity (12) are sealed and connected; the furnace body foot support (13) is arranged at the lower end of the lower furnace cavity (12); the heat source tube (3) is arranged in the lower furnace cavity (12); the heat conduction filler (14) The filler (14) is filled in the lower furnace cavity (12); the heat-conducting filler (14) covers the heat source tube (3); the heat-conducting plate (4) is arranged on the upper end surface of the heat source tube (3); the lower end surface of the temperature difference power generation sheet (5) is attached to the upper end surface of the heat-conducting plate (4); the lower end surface of the refrigerant tube (6) is attached to the upper end surface of the temperature difference power generation sheet (5); the temperature difference power generation sheet (5) is connected to the battery through the charging control module (7); the temperature difference power generation sheet (5) converts thermoelectricity into battery charging; the refrigerant tube (6) uses air cooling to cool carbon kiln fired products.

2. The carbon kiln waste heat boiler according to claim 1, characterized in that: The heat source tube (3) is provided with: a heat source inlet pipe opening (31), a heat source outlet pipe opening (32), and a heat conduction fin (33); the heat source inlet pipe opening (31) and the heat source outlet pipe opening (32) are respectively arranged at two ends of the heat source tube (3) body; the heat conduction fin (33) is arranged on the heat source tube (3) body.

3. The carbon kiln waste heat boiler according to claim 2, characterized in that: The upper end surfaces of the heat-conducting fins (33) are on the same horizontal plane or the heat-conducting fins (33) are integrally formed; the heat source tube (3) is provided with a plurality of S-shaped bends; a plurality of groups of heat-conducting plates (4) are provided, and the upper end surfaces of the heat-conducting fins (33) are smooth end surfaces; and the lower end surfaces of the plurality of groups of heat-conducting plates (4) are respectively attached to the upper portion of the straight tube region between the two bends in the heat source tube (3).

4. The carbon kiln waste heat boiler according to claim 3, characterized in that: The upper end surface of the heat conducting plate (4) is on the same horizontal plane as the heat conducting filler (14), or the heat conducting plate (4) is placed at a position slightly higher than the horizontal plane of the heat conducting filler (14).

5. The carbon kiln waste heat boiler according to claim 4, characterized in that: The refrigerant pipe (6) is provided with three groups, and the three groups of refrigerant pipes (6) have the same structure; the refrigerant pipe (6) is respectively provided with: a refrigerant inlet pipe (61), a refrigerant outlet pipe (62), a cooling fin (63), and a three-way solenoid valve (64); the refrigerant inlet pipe (61) and the refrigerant outlet pipe (62) are respectively arranged at the two ends of the refrigerant pipe (6) body; the cooling fin (63) is arranged on the refrigerant pipe (6) body; the cooling fin (63) is integrally formed, and the lower end surface of the cooling fin (63) is a smooth end surface.

6. The carbon kiln waste heat boiler according to claim 5, characterized in that: The thermoelectric power generation sheet (5) is a semiconductor chip based on the Seebeck effect principle; the thermoelectric power generation sheet (5) is provided with a heat collecting end, an NP semiconductor layer and a power generation sheet cold end; the NP semiconductor layer is provided between the heat collecting end and the cold end; the heat collecting end surface of the thermoelectric power generation sheet (5) is attached to the upper end surface of the heat conducting plate (4); and the cold end of the thermoelectric power generation sheet (5) is attached to the lower end surface of the cooling fin (63).

7. The carbon kiln waste heat boiler according to claim 6, characterized in that: Thermal conductive silicone grease is applied between the heat conducting plate (4) and the heat collecting end and between the cold end of the power generation sheet and the lower end surface of the cooling fin (63).

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