CN110887227B - Boiler with waste heat recovery function - Google Patents
Boiler with waste heat recovery function Download PDFInfo
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- CN110887227B CN110887227B CN201910988380.7A CN201910988380A CN110887227B CN 110887227 B CN110887227 B CN 110887227B CN 201910988380 A CN201910988380 A CN 201910988380A CN 110887227 B CN110887227 B CN 110887227B
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- heat collecting
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- 239000002918 waste heat Substances 0.000 title claims abstract description 18
- 238000011084 recovery Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 106
- 238000003860 storage Methods 0.000 claims abstract description 69
- 239000007789 gas Substances 0.000 claims description 67
- 239000000779 smoke Substances 0.000 claims description 28
- 238000002485 combustion reaction Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 6
- 239000012774 insulation material Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000009833 condensation Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 10
- 238000009792 diffusion process Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010285 flame spraying Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a boiler with a waste heat recovery function, which comprises: the bottom wall of the shell is provided with a base; the gas-fired boiler comprises a base, a heat collecting chamber and a heat collecting device, wherein the heat collecting chamber is positioned on the base and comprises a lower water storage pipe arranged on the base and an upper water storage pipe arranged above the lower water storage pipe, the lower water storage pipe is of a rectangular structure and is formed by connecting four pipe bodies end to end, a water inlet pipe and a water outlet pipe are respectively arranged on two sides of the lower water storage pipe, heat collecting pipes are vertically arranged and connected on the upper surface of the lower water storage pipe at equal intervals, the top ends of the heat collecting pipes are connected with the upper water storage pipe, and the heat collecting device is arranged on the left side of the heat collecting chamber.
Description
Technical Field
The invention relates to the field of boilers, in particular to a boiler with a waste heat recovery function.
Background
The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, and the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy. The hot water or steam generated in the boiler can directly provide heat energy for industrial production and people life, and can also be converted into mechanical energy through a steam power device. In the existing industrial gas boiler, the boiler body is generally heated by burning gas in a boiler chamber, but because the structural design of the boiler body and the boiler body of the existing gas boiler is unreasonable, after the gas is burnt, waste gas generated after the gas is burnt is directly discharged into the air, and heat in the waste gas is discharged along with the waste gas, so that the heat is lost, and therefore, the boiler with the waste heat recovery function is provided.
Disclosure of Invention
The invention aims to provide a boiler with a waste heat recovery function.
The technical problem to be solved by the invention is realized by adopting the following technical scheme: a boiler with waste heat recovery function, comprising:
the bottom wall of the shell is provided with a base;
the heat collecting device comprises a heat collecting chamber and a heat collecting device, wherein the heat collecting chamber is positioned on a base, the heat collecting chamber comprises a lower water storage pipe arranged on the base and an upper water storage pipe arranged above the lower water storage pipe, the lower water storage pipe is of a rectangular structure and is formed by connecting four pipe bodies end to end, a water inlet pipe and a water outlet pipe are respectively arranged on two sides of the lower water storage pipe, heat collecting pipes are vertically arranged and connected on the upper surface of the lower water storage pipe at equal intervals, the top ends of the heat collecting pipes are connected with the upper water storage pipe, heat collecting plates are welded between the outer walls of the heat collecting pipes, a sealing plate covers the top of the upper water storage pipe, and a hearth port is arranged at the right end of the heat collecting chamber;
the waste heat recovery device is arranged on the left side of the heat collection chamber and comprises a water storage barrel, a smoke discharge pipe is arranged in the water storage barrel in a spiral mode, a lower end air inlet of the smoke discharge pipe is connected with a smoke collection pipe, an upper end air outlet of the smoke discharge pipe is connected with a smoke discharge pipe, a rotating shaft is arranged in the middle of the smoke discharge pipe and is connected with a motor arranged at the top of the water storage barrel, and stirring rods are evenly arranged on the outer wall of the rotating shaft.
Preferably, the hearth port comprises a water collecting tank arranged between the heat collecting pipes, a baking pipe penetrates through the middle of the water collecting tank, and the heat collecting pipes are respectively communicated with the water collecting tank.
Preferably, the baking tube is internally provided with a gas nozzle, the gas nozzle comprises a tube body arranged inside the baking tube and a flame spraying assembly arranged inside the tube body, the left end part of the tube body is arranged inside the baking tube, the outer wall of the tube body is provided with an air blower, the air blower is communicated with an air inlet arranged on the upper side of the outer wall of the tube body, the lower side of the outer wall of the tube body is provided with an air outlet, the flame spraying assembly comprises a gas tube arranged at the central position of the tube body and an ignition rod arranged on one side of the gas tube, the front end of the gas tube is sleeved with a combustion chamber, the combustion chamber comprises a first tube body and a second tube body arranged at the front end of the gas tube, a contraction section is arranged between the first tube body and the second tube body, the front end of the second tube body is provided with a diffusion section, and the second tube body is provided with an air hole, the diffusion section extends to the outside of the pipe body, a supporting plate is arranged at the rear end of the first barrel, vent holes are formed in the supporting plate in an annular mode, an air outlet assembly is arranged at the end portion of the air conveying pipe and comprises an air collecting cover connected with the air conveying pipe, the air collecting cover is of a cylindrical structure, the end portion of the air collecting cover is sealed, through holes are evenly formed in the outer wall of the air collecting cover, and protrusions are arranged on the inner side of the end portion of the air collecting cover.
Preferably, a thermal insulation material is filled between the heat collection chamber and the shell.
Preferably, the upper part of the upper water storage pipe is provided with an exhaust assembly, the exhaust assembly comprises a condensation pipe, the lower surface of the condensation pipe is connected with the upper water storage pipe through an air guide pipe, the left side of the condensation pipe is connected with the lower water storage pipe through a return pipe, the upper surface of the condensation pipe is provided with an air outlet pipe, and one side of the air outlet pipe is provided with a pressure gauge.
Preferably, the upper port of the gas guide pipe is positioned above the lowest level of the condensation pipe.
Preferably, the outside of retaining pipe is provided with gas transmission device down, gas transmission device includes the gas-distributing pipe, one side of gas-distributing pipe is connected with the intake pipe, the opposite side evenly be provided with the tubule of retaining pipe intercommunication down, be provided with the check valve in the intake pipe.
Preferably, the thermal-collecting tube is formed by arc wall and the welding of pincher trees wall, the arc wall sets up in the outside, the pincher trees wall sets up in the inboard, and wherein, this pincher trees wall is formed by first plate body and the mutual welding of second plate body.
Preferably, a vertical baffle and an inclined baffle are arranged between the heat collecting pipes at the bottom of the left side of the heat collecting chamber, and a gap is reserved between the vertical baffle and the inclined baffle.
The invention has the beneficial effects that: the invention can recycle the waste heat generated by the boiler, improve the energy utilization rate and absorb the heat generated during the combustion of the fuel gas to the maximum extent.
Description of the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a heat collection chamber of the present invention;
FIG. 3 is a side view of the heat collection chamber of the present invention;
FIG. 4 is a schematic view of the structure of the water collection tank of the present invention;
FIG. 5 is a schematic view of the gas burner of the present invention;
FIG. 6 is a schematic view of the structure of the support plate of the present invention;
fig. 7 is a schematic structural view of a gas collecting channel of the present invention;
FIG. 8 is a schematic view of the gas delivery device of the present invention;
FIG. 9 is a schematic structural view of the heat collecting tube of the present invention;
FIG. 10 is a cross-sectional view of a condenser tube according to the present invention;
FIG. 11 is a bottom cross-sectional view of the heat collection chamber of the present invention;
FIG. 12 is a schematic structural diagram of a waste heat recovery device according to the present invention;
FIG. 13 is a cross-sectional view of the waste heat recovery device of the present invention;
reference numbers in the figures: 10. a housing; 11. a thermal insulation material; 12. a base; 20. a heat collection chamber; 21. a baking tube; 211. a water collection tank; 22. a lower water storage pipe; 221. a support block; 222. a water outlet pipe; 223. a water inlet pipe; 23. a heat collecting pipe; 231. a first plate body; 232. a second plate body; 24. a heat collecting plate; 241. a vertical baffle; 242. an inclined baffle plate; 25. an upper water storage pipe; 251. a sealing plate; 26. a connecting pipe; 261. a buffer tube; 27. a condenser tube; 271. a return pipe; 272. an air duct; 273. a pressure gauge; 274. an air outlet pipe; 28. reinforcing ribs; 29. a gas distributing pipe; 291. a one-way valve; 292. an air inlet pipe; 293. a thin tube; 30. a water storage cylinder; 31. a smoke exhaust pipe; 32. gathering the smoke pipe; 33. a first water pipe; 34. a rotating shaft; 341. a stirring rod; 35. a second water pipe; 36. a motor; 37. a smoke outlet pipeline; 40. a pipe body; 41. a blower; 401. an air inlet; 402. an air outlet; 42. an ignition rod; 43. a gas delivery pipe; 44. a support plate; 441. a vent; 45. an air outlet assembly; 451. a gas-collecting hood; 452. a through hole; 453. a protrusion; 46. a first cylinder; 461. a contraction section; 462. a second cylinder; 463. a diffuser section; 464. and (4) air holes.
The specific implementation mode is as follows:
in order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
It will be understood that when an element is referred to as being "secured to" another element, it can be on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only and do not represent the only embodiments.
Examples
As shown in fig. 1, 2 and 3, the present invention provides a boiler having a waste heat recovery function, comprising:
the bottom wall of the shell 10 is provided with a base 12, and the bottom of the shell 10 can be provided with walking wheels, so that the movement is convenient;
the heat collecting chamber 20 is located on the base 12, wherein the heat collecting chamber 20 includes a lower water storage tube 22 disposed on the base 12, the lower water storage tube 22 is connected to the base 12 through a supporting block 221, an upper water storage tube 25 disposed above the lower water storage tube 22, the lower water storage tube 22 is of a rectangular structure and is connected end to end by four tube bodies, a water inlet tube 223 and a water outlet tube 222 are disposed on two sides of the lower water storage tube 22 respectively, the upper surface of the lower water storage tube 22 is vertically disposed and connected with heat collecting tubes 23 at equal intervals, the top ends of the heat collecting tubes 23 are connected to the upper water storage tube 25, heat collecting plates 24 are welded between the outer walls of the heat collecting tubes 23, a sealing plate 251 is covered on the top of the upper water storage tube 25, a hearth port is disposed at the right end of the heat collecting chamber 20, the upper water storage tube 25 is also of a rectangular structure, the tube diameter of the upper water storage tube 25 is larger, the heat collecting plates 24 can be disposed on the upper portion of the heat collecting tubes 23, an integral iron plate can be welded on the outer wall of the lower portion of the heat collecting tubes 23, in addition, the upper water storage pipe 25 and the lower water storage pipe 22 can be communicated through a connecting pipe 26, a buffer pipe 261 is arranged in the middle of the connecting pipe 26, a liquid level meter can be mounted on the buffer pipe 261, the water level in the heat collection pipe 23 can be observed in real time, and in order to ensure the stability of the heat collection chamber 20, a reinforcing rib 28 can be welded on the outer wall of the heat collection chamber 20;
as shown in fig. 12 and 13, the waste heat recovery device is disposed on the left side of the heat collecting chamber 20, wherein the waste heat recovery device includes a water storage barrel 30, an inner spiral of the water storage barrel 30 is provided with a smoke exhaust pipe 31, a lower air inlet of the smoke exhaust pipe 31 is connected with a smoke collecting pipe 32, an upper air outlet of the smoke exhaust pipe 31 is connected with a smoke outlet pipe 37, a middle position of the smoke exhaust pipe 31 is provided with a rotating shaft 34, the rotating shaft 34 is connected with a motor 36 disposed at the top of the water storage barrel 30, and the outer wall of the rotating shaft 34 is uniformly provided with a stirring rod 341.
As shown in fig. 4, the furnace port includes the water collecting tank 211 that sets up between the thermal-collecting tube 23, and the middle part of water collecting tank 211 runs through and has baked pipe 21, and wherein, thermal-collecting tube 23 communicates with water collecting tank 211 respectively, and the furnace port is the blowout position of gas flame, and this position temperature is higher for a long time, burns the thermal-collecting tube 23 red easily, influences the quality of thermal-collecting tube 23 so for a long time, and this embodiment can avoid above-mentioned condition through setting up water collecting tank 211, has prolonged thermal-collecting tube 23's life.
As shown in fig. 5, 6 and 7, a gas nozzle is installed in the baking tube 21, the gas nozzle includes a tube body 40 disposed inside the baking tube 21, and a flame projecting assembly disposed inside the tube body 40, a left end portion of the tube body 40 is disposed inside the baking tube 21, an outer wall of the tube body 40 is provided with a blower 41, the blower 41 is communicated with an air inlet 401 disposed on an upper side of the outer wall of the tube body 40, and an air outlet 402 is disposed on a lower side of the outer wall of the tube body 40, wherein the flame projecting assembly includes a gas pipe 43 disposed at a central position of the tube body 40 and an ignition rod 42 disposed on one side of the gas pipe 43, a combustion chamber is sleeved at a front end of the gas pipe 43, the combustion chamber includes a first tube 46 and a second tube 462 disposed at a front end of the gas pipe 43, a contraction section 461 is disposed between the first tube 46 and the second tube 462, a diffusion section 463 is disposed at a front end of the second tube 462, an air hole 464 is disposed on the second tube 462, in this embodiment, after the pressurized gas exhausted from the gas collecting hood 451 is ignited by the ignition rod 42, the flame will be instantly collected in the combustion chamber, the flame will firstly expand in the first cylinder 46, and then accelerate into the second cylinder 462 after passing through the contraction section 461, and finally spray into the heat collecting chamber 20 at a high speed through the diffusion section 463, so as to ensure the heating area of the flame in the heat collecting chamber 20 and improve the heating efficiency;
wherein, this diffusion 463 extends to the body 40 outside, the rear end of first barrel 46 is provided with backup pad 44, the annular is provided with blow vent 441 on this backup pad 44, the tip of gas-supply pipe 43 is provided with air outlet assembly 45, air outlet assembly 45 includes the gas collecting channel 451 of being connected with gas-supply pipe 43, this gas collecting channel 451 is tubular structure and end seal, the outer wall of gas collecting channel 451 evenly is provided with through-hole 452, the tip inboard of gas collecting channel 451 is provided with arch 453, in addition, this embodiment is through setting up arch 453, mainly play the guide effect, make the gas can be even discharge from gas collecting channel 451.
The heat insulation material 11 is filled between the heat collection chamber 20 and the shell 10, and the heat insulation material 11 can effectively insulate the interior of the boiler body and reduce heat loss, wherein the heat insulation material 11 can be an aluminum silicate fiberboard.
As shown in fig. 3, an exhaust assembly is arranged above the upper water storage pipe 25, the exhaust assembly comprises a condensation pipe 27, the lower surface of the condensation pipe 27 is connected with the upper water storage pipe 25 through an air duct 272, the left side of the condensation pipe 27 is connected with the lower water storage pipe 22 through a return pipe 271, an air outlet pipe 274 is arranged on the upper surface of the condensation pipe 27, and a pressure gauge 273 is arranged on one side of the air outlet pipe 274;
as shown in FIG. 10, the upper port of the air duct 272 is located above the lowest level of the condensation pipe 27, which has the advantage that the water drops generated by the contact between the steam and the condensation pipe 27 will not flow into the upper water storage pipe 25 through the air duct 272, thus ensuring the smoothness of the air duct 272.
As shown in fig. 8, an air delivery device is disposed on the outer side of the lower water storage tube 22, the air delivery device includes an air distribution tube 29, one side of the air distribution tube 29 is connected with an air inlet tube 292, a thin tube 293 communicated with the lower water storage tube 22 is uniformly disposed on the other side of the air distribution tube 29, a one-way valve 291 is disposed on the air inlet tube 292, the air inlet tube 292 is communicated with an external air inlet device, at the initial stage of boiler heating, the heat collection tube 23 can absorb heat only by heating the heat collection chamber 20 for a long time, and only heat conduction can be performed on the inner wall of the heat collection tube 23 in the earlier stage, which results in uneven heating of cold water in the heat collection tube, in this embodiment, air blowing is performed on the bottom of the lower water storage tube 22, bubbles in the lower water storage tube 22 can enter the heat collection tube 23, thereby stirring the cold water in the heat collection tube 23, ensuring that the cold water can be heated uniformly, and significantly improving the heating efficiency of the boiler.
As shown in fig. 9 and 11, the heat collecting tube 23 is formed by welding an arc wall and a corrugated wall, the arc wall is disposed on the outer side, and the corrugated wall is disposed on the inner side, wherein the corrugated wall is formed by welding the first plate 231 and the second plate 232, the inner wall of the heat collecting tube 23 is corrugated, the contact area is increased, and the heating efficiency is improved.
The bottom of the heat collecting chamber 20 at the left side is provided with a vertical baffle 241 and an inclined baffle 242 between the heat collecting pipes 23, and a gap is left between the vertical baffle 241 and the inclined baffle 242, and the gap is communicated with the smoke inlet pipe 33.
The working process is as follows: firstly, cold water enters from one end of a water inlet pipe 223 under pressure, the cold water is gradually filled in a lower water storage pipe 22, a heat collecting pipe 23 and an upper water storage pipe 25 in sequence, after the cold water is filled, gas heating is carried out, at the moment, an air blower 41 is started, the air blower 41 blows air into a pipe body 40, an ignition rod 42 is started to ignite the end part of a gas pipe 43, flame at the end part of the gas pipe 43 is sprayed into a heat collecting chamber 20 through a combustion chamber for heating, meanwhile, the gas inlet pipe 292 blows air, and different positions in the lower water storage pipe 22 are blown through a gas distributing pipe 292, in the heating process of the heat collecting chamber 20, hot gas generated by the gas is discharged into a box body 30 from a smoke inlet, is cooled through an atomizing device 35, and is discharged out of the box body 30 through a suction fan;
flow direction of gas: outside air or combustion-supporting gas is first introduced into the interior of the tube body 40 from the air inlet 401 by the blower 41, wherein, a portion of the air or the combustion-supporting gas is discharged from the outlet 402 at the bottom of the pipe body 40, another portion of the air or the combustion-supporting gas enters the combustion chamber through the vent 441, a portion of the air or the combustion-supporting gas entering the combustion chamber is consumed, the unconsumed high-temperature air or the flame-retardant gas and the oxynitride generated by the incomplete combustion of the gas are discharged from the left gap of the heat collecting chamber 20, and enters the smoke discharging pipe 31 through the smoke collecting pipe 32, the high temperature air is discharged from the smoke discharging pipe 37 after passing through the spiral smoke discharging pipe 31, the high temperature air can transfer the heat to the water in the water storage barrel 30 through the smoke discharging pipe 37, thereby realizing the recycling of the heat, and the stirring of motor 36 and pivot 34 has realized the stirring that the water in the water storage bucket 30 is incessant for heat transfer improves the thermal recovery in the waste gas.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A boiler with waste heat recovery function, characterized by comprising:
the bottom wall of the shell is provided with a base;
the heat collecting device comprises a heat collecting chamber and a heat collecting device, wherein the heat collecting chamber is positioned on a base, the heat collecting chamber comprises a lower water storage pipe arranged on the base and an upper water storage pipe arranged above the lower water storage pipe, the lower water storage pipe is of a rectangular structure and is formed by connecting four pipe bodies end to end, a water inlet pipe and a water outlet pipe are respectively arranged on two sides of the lower water storage pipe, heat collecting pipes are vertically arranged and connected on the upper surface of the lower water storage pipe at equal intervals, the top ends of the heat collecting pipes are connected with the upper water storage pipe, heat collecting plates are welded between the outer walls of the heat collecting pipes, a sealing plate covers the top of the upper water storage pipe, and a hearth port is arranged at the right end of the heat collecting chamber;
the waste heat recovery device is arranged on the left side of the heat collection chamber and comprises a water storage barrel, a smoke exhaust pipe is spirally arranged in the water storage barrel, a smoke collecting pipe is connected to an air inlet at the lower end of the smoke exhaust pipe, a smoke outlet pipe is connected to an air outlet at the upper end of the smoke exhaust pipe, a rotating shaft is arranged in the middle of the smoke exhaust pipe and connected with a motor arranged at the top of the water storage barrel, and stirring rods are uniformly arranged on the outer wall of the rotating shaft;
the port of the hearth comprises a water collecting tank arranged among the heat collecting pipes, and a baking pipe penetrates through the middle part of the water collecting tank, wherein the heat collecting pipes are respectively communicated with the water collecting tank;
a heat insulation material is filled between the heat collection chamber and the shell;
an exhaust assembly is arranged above the upper water storage pipe and comprises a condenser pipe, the lower surface of the condenser pipe is connected with the upper water storage pipe through an air guide pipe, the left side of the condenser pipe is connected with the lower water storage pipe through a return pipe, an air outlet pipe is arranged on the upper surface of the condenser pipe, and a pressure gauge is arranged on one side of the air outlet pipe;
the upper port of the gas guide pipe is positioned above the lowest horizontal line of the condenser pipe;
the outer side of the lower water storage pipe is provided with a gas transmission device, the gas transmission device comprises a gas distribution pipe, one side of the gas distribution pipe is connected with a gas inlet pipe, the other side of the gas distribution pipe is uniformly provided with thin pipes communicated with the lower water storage pipe, and the gas inlet pipe is provided with a one-way valve;
the thermal-collecting tube is formed by arc wall and pincher trees wall welding, the arc wall sets up in the outside, the pincher trees wall sets up in the inboard, and wherein, this pincher trees wall is formed by first plate body and the mutual welding of second plate body.
2. The boiler with the waste heat recovery function according to claim 1, wherein a gas nozzle is installed in the baking tube, the gas nozzle comprises a tube body arranged in the baking tube and a flame projecting assembly arranged in the tube body, the left end of the tube body is arranged in the baking tube, the outer wall of the tube body is provided with an air blower, the air blower is communicated with an air inlet arranged at the upper side of the outer wall of the tube body, the lower side of the outer wall of the tube body is provided with an air outlet, the flame projecting assembly comprises a gas tube arranged at the central position of the tube body and a flame striking rod arranged at one side of the gas tube, the front end of the gas tube is sleeved with a combustion chamber, the combustion chamber comprises a first tube body and a second tube body arranged at the front end of the gas tube, and a contraction section is arranged between the first tube body and the second tube body, the front end of second barrel is provided with the diffuser, set up the gas pocket on the second barrel, wherein, this diffuser extends to the body is outside, the rear end of first barrel is provided with the backup pad, and the annular is provided with the blow vent in this backup pad, the tip of gas-supply pipe is provided with air outlet assembly, air outlet assembly includes the gas collecting channel of being connected with the gas-supply pipe, and this gas collecting channel is tubular structure and end seal, the outer wall of gas collecting channel evenly is provided with the through-hole, the tip inboard of gas collecting channel is provided with the arch.
3. The boiler with the function of recovering waste heat as claimed in claim 2, wherein a vertical baffle and an inclined baffle are arranged at the bottom of the left side of the heat collecting chamber between the heat collecting pipes, and a gap is left between the vertical baffle and the inclined baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910988380.7A CN110887227B (en) | 2019-10-17 | 2019-10-17 | Boiler with waste heat recovery function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910988380.7A CN110887227B (en) | 2019-10-17 | 2019-10-17 | Boiler with waste heat recovery function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110887227A CN110887227A (en) | 2020-03-17 |
| CN110887227B true CN110887227B (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910988380.7A Active CN110887227B (en) | 2019-10-17 | 2019-10-17 | Boiler with waste heat recovery function |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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