Novel carbon waste heat boiler

Abstract

The utility model discloses a novel carbon waste heat boiler which comprises a three-way distribution valve, a heat replacement furnace and a water storage tank. A flue gas pipe and an in-furnace water pipe are arranged in the heat replacement furnace; the three-way distribution valve is respectively communicated with an in-furnace water pipe in the heat replacement furnace and a water path of the water storage tank; the kiln smoke exhaust pipe is connected and communicated with the smoke pipe flange; cold water is subjected to heat exchange heating in the heat exchange furnace through the water pipe in the furnace, and the heated water is stored in the water storage tank; when the temperature of the water in the water storage tank is too low, the water in the water storage tank is pumped into the heat exchange furnace through the liquid inlet pump for circulating heat exchange; the size of the tank body of the water storage tank is set according to the purpose of hot water, smoke heat of the carbon kiln is fully utilized to heat water, and the heated water can be connected into heat supply equipment or the hot water can be sold as a commodity. And the flue gas waste heat generates value.

Description

Technical Field

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

[0002] When a carbon kiln is fired and used, its internal temperature is above 1200 degrees, and a large amount of high-temperature flue gas is generated during its production process. After the carbon kiln flue gas treatment adopts dry desulfurization and SCR denitrification, the temperature of the exhaust flue gas is about 150 degrees. Most of the time, the flue gas is directly discharged, which 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 problems and provide a new type of carbon waste heat boiler.

[0004] A novel carbon waste heat boiler comprises: a three-way distribution valve 1, a liquid inlet pump 2, a heat exchange furnace 3, a water storage tank 4, and a liquid outlet pump 5; the three-way distribution valve 1 is provided with a first water inlet pipe 11 of the distribution valve, a second water inlet pipe 12 of the distribution valve, and a water outlet pipe 13 of the distribution valve; the heat exchange furnace 3 is provided with: a furnace body 31, a flue gas pipe 32, a water pipe in the furnace 34, and a heat conduction filler 35; the middle of the flue gas pipe 32 and the water pipe in the furnace 34 are arranged in the furnace body 31; the heat conduction filler 35 is filled in the furnace body 31 and covers the flue gas pipe 32 and the water pipe in the furnace 34; cold water is passed through the first water inlet The pipe 11 is connected, the second water inlet pipe 12 of the distribution valve is connected with the water tank 4 pipeline; the distribution valve outlet pipe 13 is connected with one end of the water pipe 34 in the furnace through the liquid inlet pump 2; the other end of the water pipe 34 in the furnace is connected with the water tank 4 pipeline; the water tank 4 is provided with a second liquid outlet pipe 43 of the water tank; the liquid outlet pump 5 is connected with the second liquid outlet pipe 43 of the water tank; the two ends of the smoke pipe 32 are respectively a smoke inlet 321 and a smoke exhaust port 322; the smoke inlet 321 is flange-connected with the kiln smoke exhaust pipe; the smoke filter 33 is flange-connected with the smoke exhaust port 322; the filtered smoke is discharged from the other end of the smoke filter 33.

[0005] The main body of the flue gas pipe 32 is spirally arranged in the furnace body 31; the spiral part of the main body is provided with heat dissipation fins 323; the middle part of the water pipe 34 in the furnace is spirally wound around the flue gas pipe 32.

[0006] The flue gas pipe 32 and the water pipe 34 in the furnace are both made of copper.

[0007] The smoke filter 33 is provided with a smoke filter element made of carbon fiber cotton.

[0008] The water storage tank 4 is provided with a water tank liquid inlet pipe 41, a water tank first liquid outlet pipe 42, and a water tank second liquid outlet pipe 43. The water tank liquid inlet pipe 41 is connected to the water outlet 342 of the water pipe in the furnace; the water tank first liquid outlet pipe 42 is connected to the second water inlet pipe 12 of the distribution valve.

[0009] The new carbon waste heat boiler also includes a temperature control component and a controller 9; the temperature control component includes: a first temperature detector 61, a second temperature detector 62, a third temperature detector 63, a fourth temperature detector 64, and a fifth temperature detector 65; the first temperature detector 61 is arranged at the tube wall of the first water inlet pipe 11 of the distribution valve; the second temperature detector 62 is arranged at the tube wall of the second water inlet pipe 12 of the distribution valve; the third temperature detector 63 is arranged at the tube wall of the water inlet 341 of the water pipe in the furnace; the fourth temperature detector 64 is arranged at the tube wall of the water outlet 342 of the water pipe in the furnace; the fifth temperature detector 65 is arranged at the tube wall of the second liquid outlet pipe 43 of the water tank; the three-way distribution valve 1, the first temperature detector 61, the second temperature detector 62, the third temperature detector 63, the fourth temperature detector 64, the fifth temperature detector 65, the liquid inlet pump 2 and the liquid outlet pump 5 are electrically connected to the controller 9.

[0010] The present technical scheme provides a novel carbon waste heat boiler, comprising: a three-way distribution valve 1, a heat exchange furnace 3, and a water storage tank 4; the heat exchange furnace 3 is provided with a flue gas pipe 32 and a furnace water pipe 34; the three-way distribution valve 1 is respectively connected with the furnace water pipe 34 in the heat exchange furnace 3 and the water channel of the water storage tank 4; the kiln smoke exhaust pipe is connected with the flue gas pipe 32 by flange connection; cold water is heated by heat exchange in the heat exchange furnace 3 through the furnace water pipe 34, and the heated water is stored in the water storage tank 4; when the water temperature in the water storage tank 4 is too low, the water in the water storage tank 4 is pumped to the heat exchange furnace 3 for circulation and heating through the liquid inlet pump 2; the size of the water storage tank 4 is set according to the purpose of hot water, and the heat of the flue gas of the carbon kiln is fully utilized to heat the water. The heated water can be connected to the heating equipment or the hot water can be sold as a commodity, so that the waste heat of the flue gas can generate value. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is an overall schematic diagram of a new type of carbon waste heat boiler of the utility model;

[0012] Figure 2 This is a cross-sectional schematic diagram of a heat exchange furnace structure of a new carbon waste heat boiler of the utility model;

[0013] Figure 3 This is a schematic diagram of the pipeline structure of a heat exchange furnace body of a new type of carbon waste heat boiler of the utility model;

[0014] In the figure: 1. three-way distribution valve, 11. first water inlet pipe of distribution valve, 12. second water inlet pipe of distribution valve, 13. water outlet pipe of distribution valve, 2. liquid inlet pump, 3. heat exchange furnace, 31. furnace body, 32. flue gas pipe, 321. smoke inlet, 322. smoke outlet, 323. heat dissipation fins, 33. flue gas filter, 34. water pipe in furnace, 341. water inlet of water pipe in furnace, 342. water outlet of water pipe in furnace, 35. heat conduction filler, 36. smoke exhaust pipe, 4. water storage tank, 41. liquid inlet pipe of water tank, 42. first liquid outlet pipe of water tank, 43. second liquid outlet pipe of water tank, 5. liquid outlet pump, 61. first temperature detector, 62. second temperature detector, 63. third temperature detector, 64. fourth temperature detector, 65. fifth temperature detector, 9. controller. DETAILED DESCRIPTION

[0015] 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.

[0016] Example 1 A new type of carbon waste heat boiler

[0017] See also Figures 1 to 3 As shown, a novel carbon waste heat boiler comprises: a three-way distribution valve 1, a liquid inlet pump 2, a heat exchange furnace 3, a water storage tank 4, a liquid outlet pump 5, a temperature control component, and a controller 9;

[0018] The three-way distribution valve 1 is provided with a first water inlet pipe 11 of the distribution valve, a second water inlet pipe 12 of the distribution valve, and a water outlet pipe 13 of the distribution valve;

[0019] The heat exchange furnace 3 is provided with: a furnace body 31, a smoke pipe 32, a smoke filter 33, a water pipe in the furnace 34, a heat conduction filler 35, and a smoke exhaust pipe 36;

[0020] The flue gas pipe 32, the water pipe 34 in the furnace, and the heat conduction filler 35 are arranged in the furnace body 31; the furnace body 31 is fixed on the base surface or the ground through the furnace body bracket 311;

[0021] The two ends of the flue gas pipe 32 are respectively provided with a smoke inlet 321 and a smoke outlet 322; the smoke inlet 321 is flange-connected to the kiln smoke exhaust pipe; the smoke filter 33 is flange-connected to the smoke outlet 322; the other end of the smoke filter 33 discharges the smoke through the smoke exhaust pipe 36; the two ends of the furnace water pipe 34 are provided with a furnace water pipe inlet 341 and a furnace water pipe outlet 342; the distribution valve outlet pipe 13 is connected to the furnace water pipe inlet 341 through the liquid inlet pump 2; the furnace water pipe outlet 342 is connected to the water storage tank 4 through the pipeline; the main body of the smoke pipe 32 is spirally arranged in the furnace body 31; the middle part of the furnace water pipe 34 is coiled around the spiral flue gas pipe 32;

[0022] The main body of the flue pipe 32 is provided with heat dissipation fins 323 in a spiral shape; the heat dissipation fins 323 improve the heat dissipation of the flue pipe 32;

[0023] The heat-conducting filler 35 is a thermal insulation mortar containing 40% chlorine oxide;

[0024] The heat conductive filler 35 is filled in the furnace body 31 and covers the flue gas pipe 32 and the water pipe 34 in the furnace; the inner wall of the furnace body 31 is also provided with a heat insulation film 312; the heat insulation film 312 prevents the heat source from escaping to the outside of the furnace body 31;

[0025] The flue gas pipe 32 and the water pipe 34 in the furnace are both made of copper pipes;

[0026] The smoke filter 33 is provided with a smoke filter element made of carbon fiber cotton.

[0027] The water storage tank 4 is provided with a water tank liquid inlet pipe 41, a water tank first liquid outlet pipe 42, and a water tank second liquid outlet pipe 43. The water tank liquid inlet pipe 41 is connected to the water outlet 342 of the water pipe in the furnace; the water tank first liquid outlet pipe 42 is connected to the distribution valve second water inlet pipe 12; the water tank second liquid outlet pipe 43 is provided with a liquid outlet pump 5, and the liquid outlet pump 5 is connected to the water-using equipment pipeline or other device pipeline.

[0028] The temperature control assembly includes: a first temperature detector 61, a second temperature detector 62, a third temperature detector 63, a fourth temperature detector 64, and a fifth temperature detector 65;

[0029] The first temperature detector 61 is arranged at the wall of the first water inlet pipe 11 of the distribution valve; the second temperature detector 62 is arranged at the wall of the second water inlet pipe 12 of the distribution valve; the third temperature detector 63 is arranged at the wall of the water inlet 341 of the water pipe in the furnace; the fourth temperature detector 64 is arranged at the wall of the water outlet 342 of the water pipe in the furnace; the fifth temperature detector 65 is arranged at the wall of the second liquid outlet pipe 43 of the water tank;

[0030] The three-way distributing valve 1 , the first temperature detector 61 , the second temperature detector 62 , the third temperature detector 63 , the fourth temperature detector 64 , the fifth temperature detector 65 , the liquid inlet pump 2 and the liquid outlet pump 5 are electrically connected to the controller 9 .

[0031] Example 2 A novel carbon waste heat boiler circulation heating method

[0032] A novel carbon waste heat boiler water circulation heating method is controlled by a controller 9:

[0033] The controller 9 can set the water outlet temperature of the water storage tank 4 and heat the cold water through the new carbon waste heat boiler;

[0034] Cold water is connected through the first water inlet pipe 11, and the smoke inlet 321 is connected to the kiln smoke exhaust pipe flange; the controller 9 controls the three-way distribution valve 1 to only conduct the pipeline between the first water inlet pipe 11 and the distribution valve outlet pipe 13; the liquid inlet pump 2 pumps the cold water into the water pipe 34 in the furnace; the heat dissipation fins 323 on the smoke pipe 32 transfer the heat of the smoke to the water pipe 34 in the furnace through the heat conduction filler 35; the middle part of the body of the water pipe 34 in the furnace is coiled around the spiral smoke pipe 32; the water in the water pipe 34 in the furnace is heated by heat conduction; the heated water is transported to the water storage tank 4, and the temperature of the water outlet 342 of the water pipe in the furnace is detected by the fourth temperature detector 64, and the fourth temperature detector 64 obtains the temperature value at this place;

[0035] Hot water is stored in the water storage tank 4; when hot water is used, it is delivered through the liquid outlet pump 5; when the liquid outlet pump 5 is pumping out, the fifth temperature detector 65 provided at the second liquid outlet pipe 43 of the water tank obtains the outlet water temperature; when the temperature threshold (temperature is too low) detected by the fifth temperature detector 65 is below the set value, the liquid outlet pump 5 is closed, and the three-way distribution valve 1 only conducts the pipeline between the second water inlet pipe 12 of the distribution valve and the water outlet pipe 13 of the distribution valve; the water in the water storage tank 4 is re-pumped into the heat exchange furnace 3 through the liquid inlet pump 2 to heat the water; when the temperature value detected by the fourth temperature detector 64 reaches the upper limit of the temperature threshold (higher temperature); the three-way distribution valve 1 is controlled again by the controller 9 to conduct the pipeline between the first water inlet pipe 11 and the water outlet pipe 13 of the distribution valve; cold water is pumped to the equipment for heating;

[0036] According to the size of the water storage tank 4 for hot water use, the hot water can be connected to a heating device or sold as a commodity.

Claims

1. A new type of carbon waste heat boiler, comprising: A three-way distribution valve (1), a liquid inlet pump (2), a heat exchange furnace (3), a water storage tank (4), and a liquid outlet pump (5); the three-way distribution valve (1) is provided with a first water inlet pipe (11) of the distribution valve, a second water inlet pipe (12) of the distribution valve, and a water outlet pipe (13) of the distribution valve; the characteristic is that the heat exchange furnace (3) is provided with a furnace body (31), a flue gas pipe (32), a water pipe in the furnace (34), and a heat conductive filler (35); the middle parts of the flue gas pipe (32) and the water pipe in the furnace (34) are arranged in the furnace body (31); the heat conductive filler (35) is filled in the furnace body (31) and covers the flue gas pipe (32) and the water pipe in the furnace (34); cold water is connected through the first water inlet pipe (11), and the second water inlet pipe (12) of the distribution valve is connected to the water storage tank (4) through a pipeline; the water outlet pipe (13) of the distribution valve 13) is connected to one end of the water pipe (34) in the furnace through a liquid inlet pump (2); the water pipe (34) in the furnace is provided with a water inlet (341) and a water outlet (342) at both ends; the water pipe (34) in the furnace is connected to the water tank (4) through a pipeline; the water tank (4) is provided with a second liquid outlet pipe (43) of the water tank; the liquid outlet pump (5) is connected to the second liquid outlet pipe (43) of the water tank; the smoke pipe (32) has a smoke inlet (321) and a smoke outlet (322) at both ends; the smoke inlet (321) is flange-connected to the kiln smoke exhaust pipe; the smoke filter (33) is flange-connected to the smoke outlet (322); the filtered smoke is discharged from the other end of the smoke filter (33); the water in the water tank (4) can be pumped to the heat exchange furnace (3) through the liquid inlet pump (2) for circulation and heating.

2. A novel carbon waste heat boiler according to claim 1, characterized in that: The main body of the flue gas pipe (32) is arranged in a spiral shape in the furnace body (31); a heat dissipation fin (323) is provided at the spiral shape of the main body; and the middle part of the body of the water pipe (34) in the furnace is coiled around the spiral shape of the flue gas pipe (32).

3. A novel carbon waste heat boiler according to claim 2, characterized in that: The flue gas pipe (32) and the water pipe (34) in the furnace are both made of copper.

4. A novel carbon waste heat boiler according to claim 2, characterized in that: The smoke filter (33) is provided with a smoke filter element made of carbon fiber cotton.

5. A novel carbon waste heat boiler according to claim 4, characterized in that: The water storage tank (4) is provided with a water tank liquid inlet pipe (41), a first water tank liquid outlet pipe (42), and a second water tank liquid outlet pipe (43); the water tank liquid inlet pipe (41) is in pipeline communication with a water outlet (342) of a water pipe in the furnace; the first water tank liquid outlet pipe (42) is in pipeline communication with a second water inlet pipe (12) of a distribution valve.

6. A novel carbon waste heat boiler according to claim 5, characterized in that: It also includes a temperature control component and a controller (9); the temperature control component includes: a first temperature detector (61), a second temperature detector (62), a third temperature detector (63), a fourth temperature detector (64), and a fifth temperature detector (65); the first temperature detector (61) is arranged on the pipe wall of the first water inlet pipe (11) of the distribution valve; the second temperature detector (62) is arranged on the pipe wall of the second water inlet pipe (12) of the distribution valve; the third temperature detector (63) is arranged on the pipe wall of the water inlet (341) of the water pipe in the furnace; the fourth temperature detector (64) is arranged on the pipe wall of the water outlet (342) of the water pipe in the furnace; the fifth temperature detector (65) is arranged on the pipe wall of the second liquid outlet pipe (43) of the water tank; the three-way distribution valve (1), the first temperature detector (61), the second temperature detector (62), the third temperature detector (63), the fourth temperature detector (64), the fifth temperature detector (65), the liquid inlet pump (2), and the liquid outlet pump (5) are electrically connected to the controller (9).

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