CN220039211U - Tail gas waste heat recovery device of fuel gas hot-blast stove - Google Patents
Tail gas waste heat recovery device of fuel gas hot-blast stove Download PDFInfo
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- CN220039211U CN220039211U CN202320340298.5U CN202320340298U CN220039211U CN 220039211 U CN220039211 U CN 220039211U CN 202320340298 U CN202320340298 U CN 202320340298U CN 220039211 U CN220039211 U CN 220039211U
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- water
- heat exchange
- exchange tube
- water tank
- tail gas
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- 239000007789 gas Substances 0.000 title claims abstract description 61
- 239000002737 fuel gas Substances 0.000 title claims abstract description 29
- 239000002918 waste heat Substances 0.000 title claims abstract description 27
- 238000011084 recovery Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 135
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 239000012535 impurity Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 description 10
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model discloses a tail gas waste heat recovery device of a fuel gas hot blast stove, which comprises a water tank, a first heat exchange tube and a second heat exchange tube. The beneficial effects are that: the utility model adopts the water tank, the first heat exchange tube and the second heat exchange tube, the high-temperature tail gas of the fuel gas hot blast stove enters the gas transmission tube through the induced draft fan and is discharged from the gas outlet, after heat exchange with water in the water tank, the water in the water tank is heated, the water temperature is increased, the water absorbs the high temperature of the tail gas and washes away impurities in the tail gas, the heated water is transferred to the first heat exchange tube and the second heat exchange tube for heating through heat, the living water is introduced into the first heat exchange tube, the living area is heated for supplying water after heating, the device adopts the water tank for directly washing and removing impurities and indirectly heating the living water and preheating the inlet air, the tail gas waste heat of the hot blast stove is fully utilized, the energy consumption is reduced, the multifunctional effect is achieved, the structure is simple, the implementation is convenient and quick, and the device is suitable for being widely popularized and used.
Description
Technical Field
The utility model relates to the technical field of waste heat recovery of fuel gas hot blast stoves, in particular to a tail gas waste heat recovery device of a fuel gas hot blast stove.
Background
The fuel gas hot blast stove is used as a hot blast stove of a thermodynamic machine and is widely applied in China at the end of the 70 th century, and is a substitute product of an electric heat source and a traditional steam power heat source in a plurality of industries.
After searching, it is found that the publication number is CN112648730B, the name is a hot blast stove waste heat recovery device, the application proposes that the current hot blast stove has certain defects when in use, such as the temperature of hot blast stove exhaust gas is very high, and the current hot blast stove does not have waste heat recovery function, this part of heat energy is wasted, thereby causing a large amount of waste problems of heat energy, through the start of exhaust fan, high-temperature tail gas is pumped out, sent into the first heat exchanger, high-temperature tail gas is subjected to heat exchange with water in the first heat exchanger, the temperature rises, hot water is conveyed into the second heat exchanger for circulation through the start of the water pump, external cold air is pumped in through the start of the air blower, and enters the hot blast stove for recycling after heat exchange of the second heat exchanger and the hot water, the heat in the hot blast stove tail gas is effectively recovered, thereby improving the heat efficiency of the hot blast stove, but the equipment is complex, and meanwhile, the hot blast stove is required to be manually discharged at regular intervals, the convenience is also affected, and the convenience of use is further improved.
For the problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides the tail gas waste heat recovery device of the fuel gas hot blast stove, which has the advantages of rich functions, simple structure and convenient use, thereby solving the problems in the background art.
(II) technical scheme
In order to realize the advantages of rich functions, simple structure and convenient use, the utility model adopts the following specific technical scheme:
the utility model provides a fuel gas hot-blast furnace tail gas waste heat recovery device, includes water tank, first heat exchange tube and second heat exchange tube, the inside mount of water tank is equipped with first heat exchange tube, and first heat exchange tube inner side frame is equipped with the second heat exchange tube to first heat exchange tube both ends link up respectively and are connected with inlet tube and outlet pipe, inlet tube and outlet pipe all run through the water tank, second heat exchange tube both ends link up respectively and are connected with intake pipe and outlet duct, and intake pipe and outlet duct all run through the water tank, water tank one side surface is connected with the gas-supply pipe in a run through way, and gas-supply pipe one end extends to first heat exchange tube below to the gas-supply pipe other end is connected with the draught fan in a run through way through the connecting pipe, the gas-supply pipe other end is connected with the air-blower in a run through way, water tank positive facade bottom link up is connected with the water suction pipe, and the water suction pipe other end link up is connected with the water pump, and the water pump other end is connected with the clean filter through communicating pipe link up, self-cleaning filter drain end link up through with the back flow top surface.
Further, the first heat exchange tube is a spiral tube, and the second heat exchange tube is a serpentine tube.
Further, the first heat exchange tube and the second heat exchange tube are the same in quality, and the first heat exchange tube is a copper tube.
Further, a plurality of air outlets are arranged at equal intervals, and the air outlets are vertically upwards arranged.
Furthermore, the connecting pipe is of a horn-shaped structure.
Further, the water inlet pipe and the water outlet pipe are communicated with domestic water circulation pumping equipment.
Further, a liquid level window is arranged on the back vertical surface of the water tank.
Further, water is contained in the water tank, and the liquid level of the water is higher than the top surface of the first heat exchange tube and lower than the bottom opening of the exhaust tube.
(III) beneficial effects
Compared with the prior art, the utility model provides the tail gas waste heat recovery device of the fuel gas hot blast stove, which has the following beneficial effects:
(1) The utility model adopts the water tank, the first heat exchange tube and the second heat exchange tube, the first heat exchange tube is a spiral tube and is positioned in the water of the water tank, the second heat exchange tube is a coiled tube and is positioned at the inner side of the first heat exchange tube, the high-temperature tail gas of the fuel gas hot blast stove enters the gas transmission tube through the induced draft fan and is discharged from the gas outlet, after heat exchange with the water in the water tank, the water in the water tank is heated, the water absorbs the high temperature of the tail gas and simultaneously washes away impurities in the tail gas, the heated water is transferred to the first heat exchange tube and the second heat exchange tube for heating through heat, the living water is introduced into the first heat exchange tube, the heated water is supplied to the living area for hot water, the second heat exchange tube is introduced into the outside air for preheating through the outside air which is introduced into the fuel gas hot blast stove after heating, the heat loss is reduced, the device directly carries out water washing impurity removal and indirect living water heating and gas inlet preheating through the water tank, the tail gas waste heat is fully utilized, the energy consumption is reduced, the multifunctional effect is achieved, the structure is simple, the implementation is convenient and rapid, and the device is suitable for large-scale popularization and use.
(2) According to the utility model, the water pump and the self-cleaning filter are adopted, impurities in water are communicated with the water and pumped into the water pumping pipe by the water pump, and the water flows back into the water tank along the return pipe after being filtered by the self-cleaning filter, so that the impurity removal operation is completed, the problem of manual impurity removal is solved, the use is convenient for a long time, and the use convenience is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a tail gas waste heat recovery device of a fuel gas hot blast stove;
FIG. 2 is a front view of the tail gas waste heat recovery device of the fuel gas hot blast stove provided by the utility model;
FIG. 3 is a rear view of the tail gas waste heat recovery device of the fuel gas hot blast stove provided by the utility model;
FIG. 4 is a schematic diagram of a gas delivery tube according to the present utility model.
In the figure:
1. a water tank; 2. a first heat exchange tube; 3. a second heat exchange tube; 4. a water inlet pipe; 5. a water outlet pipe; 6. a connecting pipe; 7. a gas pipe; 8. an air outlet; 9. an air outlet pipe; 10. an exhaust pipe; 11. an induced draft fan; 12. a blower; 13. an air inlet pipe; 14. a return pipe; 15. a self-cleaning filter; 16. a water pump; 17. a communicating pipe; 18. a water pumping pipe; 19. a liquid level window.
Detailed Description
For the purpose of further illustrating the various embodiments, the present utility model provides the accompanying drawings, which are a part of the disclosure of the present utility model, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present utility model, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.
According to an embodiment of the utility model, a tail gas waste heat recovery device of a fuel gas hot blast stove is provided.
The utility model will be further described with reference to the accompanying drawings and the specific embodiments, as shown in fig. 1-4, the tail gas waste heat recovery device of the fuel gas hot blast stove according to the embodiment of the utility model comprises a water tank 1, a first heat exchange tube 2 and a second heat exchange tube 3, wherein the first heat exchange tube 2 is arranged in the internal fixing frame of the water tank 1, the second heat exchange tube 3 is arranged on the inner side frame of the first heat exchange tube 2, the two ends of the first heat exchange tube 2 are respectively connected with a water inlet pipe 4 and a water outlet pipe 5 in a penetrating way, the water inlet pipe 4 and the water outlet pipe 5 are respectively connected with the water tank 1 in a penetrating way, the two ends of the second heat exchange tube 3 are respectively connected with an air inlet pipe 13 and an air outlet pipe 9 in a penetrating way, the air inlet pipe 13 and the air outlet pipe 9 are respectively connected with the water tank 1 in a penetrating way, water leakage is avoided, one side surface of the water tank 1 is connected with a gas transmission pipe 7 in a penetrating way, and one end of the air pipe 7 extends to the lower part of the first heat exchange tube 2, the other end of the air pipe 7 is connected with a draught fan 11 through a connecting pipe 6 in a penetrating way, the other end of the air inlet pipe 13 is connected with a blower 12 in a penetrating way, the surface of the air pipe 7 is positioned below the first heat exchange tube 2, an air outlet 8 is arranged on the top surface of the other end of the water tank 1, an exhaust pipe 10 is connected with the bottom of the front vertical surface of the water tank 1 in a penetrating way, a water suction pipe 18 is connected with the other end of the water suction pipe 18 in a penetrating way, a water pump 16 is connected with the other end of the water pump 16 in a penetrating way through a communicating pipe 17, the self-cleaning filter 15 is a common device, the water discharge end of the self-cleaning filter 15 is connected with the top surface of the water tank 1 through a return pipe 14, wherein the first heat exchange tube 2 is a spiral tube, the second heat exchange tube 3 is a coiled tube, the functions of prolonging the flow path and improving the heat exchange efficiency, the high-temperature tail gas of the fuel gas hot blast stove enters the gas transmission pipe 7 through the induced draft fan 11, the high-temperature tail gas is discharged from the gas outlet 8, after heat exchange with water in the water tank 1, water in the water tank 1 is heated, the water temperature is improved, impurities in the tail gas are washed away while the water absorbs the tail gas at high temperature, the heated water is transferred to the first heat exchange pipe 2 and the second heat exchange pipe 3 through heat transfer, domestic water is introduced into the first heat exchange pipe 2, hot water is supplied to a living area after heating, external air is introduced into the second heat exchange pipe 3, the external air of the fuel gas hot blast stove is preheated after heating, heat loss is reduced, the device adopts the water tank 1 to directly perform water washing impurity removal and indirectly perform domestic water heating and air inlet preheating, the tail gas waste heat of the hot blast stove is fully utilized, the energy consumption is reduced, the multifunctional effect is achieved, and the device is simple in structure, convenient and quick to implement, and suitable for being widely popularized and used.
In one embodiment, the first heat exchange tube 2 and the second heat exchange tube 3 are the same in material, and the first heat exchange tube 2 is a copper tube, so that the heat conductivity is good, and the heat exchange efficiency is improved.
In one embodiment, a plurality of air outlets 8 are arranged at equal intervals, and the air outlets 8 are arranged vertically upwards to play a role in gas diversion, so that tail gas can enter water uniformly.
In one embodiment, the connecting pipe 6 has a horn-shaped structure, the section of the connecting pipe is gradually reduced when the tail gas flows, the flow speed is increased, and the tail gas is conveniently and rapidly discharged out of the air outlet 8.
In one embodiment, the water inlet pipe 4 and the water outlet pipe 5 are connected with domestic water circulation pumping equipment, which is common equipment and is shown in detail in the figure.
In one embodiment, the liquid level window 19 is arranged on the back vertical surface of the water tank 1, so that the liquid level inside the water tank 1 can be conveniently observed.
In one embodiment, the water tank 1 contains water, and the water level is higher than the top surface of the first heat exchange tube 2 and lower than the bottom opening of the exhaust tube 10, so that water is prevented from overflowing from the exhaust tube 10.
Working principle:
the high-temperature tail gas of the fuel gas hot blast stove enters the gas transmission pipe 7 through the induced draft fan 11, the high-temperature tail gas is discharged from the gas outlet 8, after heat exchange with water in the water tank 1, water in the water tank 1 is heated, the water temperature is improved, impurities in the tail gas are washed away while the water absorbs the tail gas at high temperature, the heated water is transferred to the first heat exchange pipe 2 and the second heat exchange pipe 3 through heat transfer, domestic water is introduced into the first heat exchange pipe 2, hot water is supplied to a living area after heating, external air is introduced into the second heat exchange pipe 3, the external air of the fuel gas hot blast stove is preheated after heating, heat loss is reduced, the device adopts the water tank 1 to directly perform water washing impurity removal and indirectly perform domestic water heating and air inlet preheating, the tail gas waste heat of the hot blast stove is fully utilized, the energy consumption is reduced, the multifunctional effect is achieved, and the device is simple in structure, convenient and quick to implement, and suitable for being widely popularized and used.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. The tail gas waste heat recovery device of the fuel gas hot blast stove is characterized by comprising a water tank (1), a first heat exchange tube (2) and a second heat exchange tube (3), wherein the first heat exchange tube (2) is arranged on an inner fixing frame of the water tank (1), the second heat exchange tube (3) is arranged on an inner side frame of the first heat exchange tube (2), a water inlet pipe (4) and a water outlet pipe (5) are respectively and through-connected with two ends of the first heat exchange tube (2), the water tank (1) is respectively and through-connected with an air inlet pipe (13) and an air outlet pipe (9), the air inlet pipe (13) and the air outlet pipe (9) are respectively and through-connected with the water tank (1), one side surface of the water tank (1) is through-connected with a gas transmission tube (7), one end of the gas transmission tube (7) extends to the lower side of the first heat exchange tube (2), the other end of the gas transmission tube (7) is through-connected with a draught fan (11) through a connecting tube (6), the other end of the air inlet pipe (13) is through-connected with a blower (12), the surface of the water tank (7) is positioned below the first heat exchange tube (2), the air outlet (8) is through-connected with an air outlet pipe (18), the other end of the water tank (1) is through-connected with a water pump (18), and the other end of the water suction pipe (18) is communicated with a water pump (16), the other end of the water pump (16) is communicated with a self-cleaning filter (15) through a communicating pipe (17), and the water discharge end of the self-cleaning filter (15) is communicated with the top surface of the water tank (1) through a return pipe (14).
2. The tail gas waste heat recovery device of the fuel gas hot blast stove according to claim 1, wherein the first heat exchange tube (2) is a spiral tube, and the second heat exchange tube (3) is a serpentine tube.
3. The tail gas waste heat recovery device of the fuel gas hot blast stove according to claim 1, wherein the first heat exchange tube (2) and the second heat exchange tube (3) are the same in material, and the first heat exchange tube (2) is a copper tube.
4. The fuel gas hot blast stove tail gas waste heat recovery device according to claim 1, wherein a plurality of the air outlets (8) are arranged at equal intervals, and the air outlets (8) are arranged vertically upwards.
5. The tail gas waste heat recovery device of the fuel gas hot blast stove according to claim 1, wherein the connecting pipe (6) is of a horn type structure.
6. The tail gas waste heat recovery device of the fuel gas hot blast stove according to claim 1, wherein the water inlet pipe (4) and the water outlet pipe (5) are connected with domestic water circulation pumping equipment.
7. The tail gas waste heat recovery device of the fuel gas hot blast stove according to claim 1, characterized in that a liquid level window (19) is arranged on the back elevation of the water tank (1).
8. The tail gas waste heat recovery device of the fuel gas hot blast stove according to claim 1, wherein the water tank (1) contains water, and the liquid level of the water is higher than the top surface of the first heat exchange tube (2) and lower than the bottom opening of the exhaust tube (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320340298.5U CN220039211U (en) | 2023-02-28 | 2023-02-28 | Tail gas waste heat recovery device of fuel gas hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320340298.5U CN220039211U (en) | 2023-02-28 | 2023-02-28 | Tail gas waste heat recovery device of fuel gas hot-blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220039211U true CN220039211U (en) | 2023-11-17 |
Family
ID=88726121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320340298.5U Active CN220039211U (en) | 2023-02-28 | 2023-02-28 | Tail gas waste heat recovery device of fuel gas hot-blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220039211U (en) |
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2023
- 2023-02-28 CN CN202320340298.5U patent/CN220039211U/en active Active
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