CN219829595U - Waste heat recovery structure for boiler - Google Patents
Waste heat recovery structure for boiler Download PDFInfo
- Publication number
- CN219829595U CN219829595U CN202321334942.4U CN202321334942U CN219829595U CN 219829595 U CN219829595 U CN 219829595U CN 202321334942 U CN202321334942 U CN 202321334942U CN 219829595 U CN219829595 U CN 219829595U
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- China
- Prior art keywords
- water tank
- wall
- boiler
- fixedly arranged
- water
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- 238000011084 recovery Methods 0.000 title claims abstract description 27
- 239000002918 waste heat Substances 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 97
- 239000000779 smoke Substances 0.000 claims abstract description 6
- 230000007246 mechanism Effects 0.000 claims description 30
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 28
- 239000003546 flue gas Substances 0.000 abstract description 28
- 239000007789 gas Substances 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 241001233242 Lontra Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
The utility model discloses a waste heat recovery structure for a boiler, which relates to the technical field of boilers and aims at the problems that the contact between smoke and water in a heat absorption water pipe is insufficient, the heat recovery of the smoke is insufficient, the practicability is low, the smoke cannot be purified, the smoke still has pungent smell when being discharged, and the environmental protection is poor in the prior art. The utility model can more completely recover the heat in the flue gas, and reuse the recovered heat, thereby improving the practicability, adsorbing the harmful gas and the bad smell in the flue gas and improving the environmental protection.
Description
Technical Field
The utility model relates to the technical field of boilers, in particular to a waste heat recovery structure for a boiler.
Background
The boiler is an energy conversion device, the energy input to the boiler is chemical energy and electric energy in fuel, the boiler outputs steam, high temperature water or organic heat carrier with certain heat energy, and the boiler comprises two parts of a boiler and a furnace.
By searching, china patent (application number is 202120179116.1) discloses a waste heat recovery device for a boiler, and the waste heat recovery device comprises a recovery device body; the upper end and the lower end of the recovery device body are respectively provided with a first water tank and a second water tank, the first water tank is communicated with a water outlet nozzle through a water outlet pipe, the second water tank is communicated with a water inlet nozzle through a water inlet pipe, control valves are arranged on the water inlet nozzle and the water outlet nozzle, and a plurality of heat absorption water pipes are communicated between the first water tank and the second water tank; the left side and the right side of the top end of the recovery device body are respectively provided with an air inlet pipe and an air outlet pipe, and control valves are also arranged on the air inlet pipe and the air outlet pipe; the below of first water pitcher is provided with the clearance otter board, the top of second water pitcher is provided with the dirt collecting net, however, above-mentioned device has following problem in the use:
1. the air inlet pipe and the air outlet pipe are positioned on the same horizontal line, when waste heat of the flue gas is recovered, the contact between the flue gas and water in the heat absorption water pipe is insufficient, so that the heat recovery of the flue gas is incomplete, and the practicability is low;
2. only can remove dust to the flue gas, can not purify the flue gas, still has pungent smell when the flue gas is discharged, and the environmental protection performance is poor.
Disclosure of Invention
The utility model provides a waste heat recovery structure for a boiler, which solves the problems that the heat recovery of flue gas is incomplete due to insufficient contact between flue gas of a comparison file and water in a heat absorption water pipe, the practicability is low, the flue gas cannot be purified, the flue gas still has pungent smell when being discharged, and the environmental protection performance is poor.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a waste heat recovery structure for boiler, includes boiler and water tank, be equipped with three heat exchange mechanism in the water tank, heat exchange mechanism includes two installation covers and a plurality of heat exchange tube, is located one of them installation cover of water tank lower part has set firmly the intake pipe, the water tank both sides all are equipped with U type pipe, the water tank top is equipped with purifying mechanism, purifying mechanism includes purifying box and a plurality of activated carbon filter, the water tank top is equipped with circulation mechanism, circulation mechanism includes water pump, inlet tube and back flow.
Preferably, the two mounting covers are respectively connected to the outer walls of the two sides of the water tank through bolts, the two ends of the heat exchange tube are respectively and fixedly arranged on the inner walls of one side of the two mounting covers, and the two ends of the heat exchange tube respectively penetrate through and are fixedly arranged on the outer walls of the two sides of the water tank.
Through the scheme, the flue gas enters the heat exchange tube, the flue gas transfers heat to the heat exchange tube, and then the heat exchange tube exchanges heat with cold water in the water tank.
Preferably, one end of the air inlet pipe is fixedly arranged on the outer wall of the smoke outlet of the boiler, and the three heat exchange mechanisms are communicated with each other by the U-shaped pipe.
Preferably, the purifying box is connected to the outer wall of the top of the water tank through bolts, a conveying pipe is fixedly arranged on the inner wall of the lower part of one side of the purifying box, one end of the conveying pipe is fixedly arranged on the inner wall of one end of one of the installing covers, the active carbon filter plate is slidably sleeved in the purifying box, an installing block is fixedly arranged on the outer wall of the top of the active carbon filter plate, a plurality of installing openings are formed in the outer wall of the top of the purifying box, the installing block is inserted into the installing openings, and an exhaust pipe is fixedly arranged on the outer wall of the upper part of one side of the purifying box.
Through the scheme, the plurality of activated carbon filter plates are used for adsorbing harmful gases and unpleasant odor in the cooled flue gas, so that the harmful gases and the unpleasant odor are prevented from being directly discharged in the external environment.
Preferably, the water pump passes through bolted connection on water tank top outer wall, and the inlet tube sets firmly on the water pump water inlet end outer wall, the inlet tube runs through and sets firmly on water tank top inner wall, the back flow sets firmly on the water pump water outlet end outer wall, and back flow one end is linked together with the boiler is inside.
Through the scheme, warm water in the water tank is conveyed into the boiler through the water pump, and water loss in the boiler is supplemented.
Preferably, the water pump is connected with a switch through a wire, and the switch is connected with a power line.
The beneficial effects of the utility model are as follows:
1. be provided with heat transfer mechanism and circulation mechanism, the flue gas enters into the heat exchange tube in, and the flue gas is on heat transfer tube, and heat transfer tube carries out the heat transfer with the cold water in the water tank afterwards, carries into the boiler with the warm water in the water tank through the water pump in, supplements the water of loss in the boiler, can be comparatively complete retrieve the heat in the flue gas to the heat of retrieving is recycled, has improved the practicality.
2. Be provided with purifying mechanism, the flue gas after the cooling enters into the purifying box through the conveyer pipe, adsorbs harmful gas and the bad smell in the flue gas after the cooling through a plurality of active carbon filter, avoids harmful gas and bad smell direct discharge in external environment, can adsorb harmful gas and bad smell in the flue gas, has improved the feature of environmental protection.
In conclusion, the utility model can completely recover the heat in the flue gas, and reuse the recovered heat, thereby improving the practicability, adsorbing the harmful gas and the bad smell in the flue gas and improving the environmental protection.
Drawings
Fig. 1 is a schematic diagram of a front view cross-section structure of a waste heat recovery structure for a boiler according to the present utility model.
Fig. 2 is a schematic diagram of a cross-sectional front view of a heat exchange mechanism of a waste heat recovery structure for a boiler according to the present utility model.
Fig. 3 is a schematic diagram of a front view cross-section structure of a purifying mechanism of a waste heat recovery structure for a boiler.
Fig. 4 is a schematic diagram of a front view of a circulation mechanism of a waste heat recovery structure for a boiler according to the present utility model.
In the figure: 1. a boiler; 2. a water tank; 3. a heat exchange mechanism; 301. a mounting cover; 302. a heat exchange tube; 4. an air inlet pipe; 5. a U-shaped tube; 6. a purifying mechanism; 601. a purifying box; 602. a delivery tube; 603. an activated carbon filter plate; 604. a mounting block; 605. an exhaust pipe; 7. a circulation mechanism; 701. a water pump; 702. a water inlet pipe; 703. and (5) a return pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Embodiment 1, refer to fig. 1-2 and fig. 4, a waste heat recovery structure for boiler, including all place subaerial boiler 1 and water tank 2, water tank 2 sets up in one side of boiler 1, in order to realize the flue gas heat recovery that produces when boiler 1 operates, be provided with three heat transfer mechanism 3 in water tank 2, heat transfer mechanism 3 includes two mounting hoods 301 and a plurality of heat exchange tube 302, be located one of them mounting hood 301 of water tank 2 lower part and set firmly intake pipe 4 in, intake pipe 4 one end sets firmly on boiler 1 exhaust port outer wall, water tank 2 both sides all are equipped with U type pipe 5, three heat transfer mechanism 3 are two by two communicate through U type pipe 5, in order to realize timely water to in the boiler 1 is supplied with, circulation mechanism 7 is provided, circulation mechanism 7 includes water pump 701, inlet tube 702 and back flow 703, water pump 701 is through bolted connection on water tank 2 top outer wall, inlet tube 702 runs through and sets firmly on the water pump 701 water outlet outer wall, 703 one end is linked together with boiler 1 inside, be used for carrying boiler 1 heat to directly get into boiler 1, avoid the back flow to get into the interior heat loss of boiler 1, the cold water can be reduced rapidly, the energy consumption is reduced.
Embodiment 2, refer to fig. 1 and 3, a waste heat recovery structure for boiler, still include purifying mechanism 6, purifying mechanism 6 includes purifying box 601 and a plurality of activated carbon filter 603, purifying box 601 passes through bolted connection on water tank 2 top outer wall, conveyer pipe 602 has been set firmly on the lower part inner wall of purifying box 601 one side, conveyer pipe 602 one end sets firmly on one of them installing cover 301 one end inner wall, activated carbon filter 603 slip cap locates in purifying box 601, install the piece 604 on the outer wall of activated carbon filter 603 top, it has a plurality of installing port to open on the outer wall of purifying box 601 top, install the piece 604 grafting in the installing port, set firmly blast pipe 605 on the upper portion outer wall of purifying box 601 one side.
Working principle: the flue gas enters into the heat exchange tube 302, the flue gas transfers heat to the heat exchange tube 302, then the heat exchange tube 302 exchanges heat with cold water in the water tank 2, warm water in the water tank 2 is conveyed into the boiler 1 through the water pump 701, water consumed in the boiler 1 is supplemented, cold water is supplemented into the water tank 2, cooled flue gas enters into the purifying box 601 through the conveying tube 602, harmful gas and bad smell in the cooled flue gas are adsorbed through the plurality of activated carbon filter plates 603, and the harmful gas and the bad smell are prevented from being directly discharged in the external environment.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The waste heat recovery structure for the boiler comprises the boiler (1) and a water tank (2), and is characterized in that three heat exchange mechanisms (3) are arranged in the water tank (2), and each heat exchange mechanism (3) comprises two mounting covers (301) and a plurality of heat exchange pipes (302);
an air inlet pipe (4) is fixedly arranged in one of the mounting covers (301) positioned at the lower part of the water tank (2), and U-shaped pipes (5) are arranged at two sides of the water tank (2);
the top of the water tank (2) is provided with a purifying mechanism (6), and the purifying mechanism (6) comprises a purifying tank (601) and a plurality of activated carbon filter plates (603);
the top of the water tank (2) is provided with a circulating mechanism (7), and the circulating mechanism (7) comprises a water pump (701), a water inlet pipe (702) and a return pipe (703).
2. The waste heat recovery structure for a boiler according to claim 1, wherein the two installation covers (301) are respectively connected to the outer walls of the two sides of the water tank (2) through bolts, two ends of the heat exchange tube (302) are respectively and fixedly arranged on the inner walls of one side of the two installation covers (301), and two ends of the heat exchange tube (302) respectively penetrate through and are fixedly arranged on the outer walls of the two sides of the water tank (2).
3. The waste heat recovery structure for a boiler according to claim 1, wherein one end of the air inlet pipe (4) is fixedly arranged on the outer wall of a smoke outlet of the boiler (1), and the three heat exchange mechanisms (3) are communicated with each other in pairs through the U-shaped pipe (5).
4. The waste heat recovery structure for a boiler according to claim 1, wherein the purifying box (601) is connected to the top outer wall of the water tank (2) through bolts, a conveying pipe (602) is fixedly arranged on the lower inner wall of one side of the purifying box (601), one end of the conveying pipe (602) is fixedly arranged on the inner wall of one end of one mounting cover (301), the activated carbon filter plate (603) is slidably sleeved in the purifying box (601), a mounting block (604) is fixedly arranged on the top outer wall of the activated carbon filter plate (603), a plurality of mounting openings are formed in the top outer wall of the purifying box (601), the mounting blocks (604) are inserted into the mounting openings, and an exhaust pipe (605) is fixedly arranged on the upper outer wall of one side of the purifying box (601).
5. The waste heat recovery structure for a boiler according to claim 1, wherein the water pump (701) is connected to the top outer wall of the water tank (2) through bolts, the water inlet pipe (702) is fixedly arranged on the water inlet end outer wall of the water pump (701), the water inlet pipe (702) penetrates through and is fixedly arranged on the top inner wall of the water tank (2), the return pipe (703) is fixedly arranged on the water outlet end outer wall of the water pump (701), and one end of the return pipe (703) is communicated with the interior of the boiler (1).
6. The waste heat recovery structure for a boiler according to claim 1, wherein the water pump (701) is connected to a switch through a wire, and the switch is connected to a power line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321334942.4U CN219829595U (en) | 2023-05-30 | 2023-05-30 | Waste heat recovery structure for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321334942.4U CN219829595U (en) | 2023-05-30 | 2023-05-30 | Waste heat recovery structure for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219829595U true CN219829595U (en) | 2023-10-13 |
Family
ID=88250114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321334942.4U Active CN219829595U (en) | 2023-05-30 | 2023-05-30 | Waste heat recovery structure for boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219829595U (en) |
-
2023
- 2023-05-30 CN CN202321334942.4U patent/CN219829595U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |