CN111059930A - Heat exchanger for stainless steel band bright furnace and energy-saving combustion system - Google Patents
Heat exchanger for stainless steel band bright furnace and energy-saving combustion system Download PDFInfo
- Publication number
- CN111059930A CN111059930A CN201911362260.2A CN201911362260A CN111059930A CN 111059930 A CN111059930 A CN 111059930A CN 201911362260 A CN201911362260 A CN 201911362260A CN 111059930 A CN111059930 A CN 111059930A
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- China
- Prior art keywords
- combustion
- heat exchange
- main cylinder
- heat exchanger
- stainless steel
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 25
- 239000010935 stainless steel Substances 0.000 title claims abstract description 25
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 12
- 238000005282 brightening Methods 0.000 claims abstract 2
- 239000007789 gas Substances 0.000 claims description 45
- 239000002912 waste gas Substances 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 238000004134 energy conservation Methods 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 description 6
- 239000002918 waste heat Substances 0.000 description 5
- 239000002737 fuel gas Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/66—Preheating the combustion air or gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
-
- 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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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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)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a heat exchanger for a stainless steel band furnace for brightening, which comprises a shell, two baffles, a plurality of heat exchange tubes, spiral air guide strips and guide plates, wherein a heat exchange cavity is formed in the shell, the shell comprises a main cylinder body and an air collecting cover, the two ends of the main cylinder body are respectively provided with the air collecting cover, the two baffles are respectively fixed at the corresponding connection parts of the main cylinder body and the air collecting cover, the periphery of each baffle is fixedly connected with the inner wall of the main cylinder body in a sealing way, each baffle is provided with a plurality of through holes for the heat exchange tubes to penetrate through, the two ends of each heat exchange tube are respectively fixed in the corresponding through holes in a penetrating way, the spiral air guide strips are arranged in each heat exchange tube, a plurality of guide plates are arranged between the two baffles in the main cylinder body, each guide plate is provided with a. The invention also provides an energy-saving combustion system using the heat exchanger. The heat exchanger can improve the heat exchange efficiency and realize energy conservation and emission reduction.
Description
Technical Field
The invention relates to the technical field of stainless steel band processing, in particular to a heat exchanger and an energy-saving combustion system for a stainless steel band bright furnace.
Background
With the continuous improvement of the industrial level and the continuous development of social economy, people have higher and higher protection awareness on the environment and resources, and the energy cannot be fully and completely combusted and then is discharged into the atmosphere, so that the environment is polluted, and the resources are wasted. The heat treatment industry is an energy-consuming household, the bright furnace is an important device in the stainless steel processing process, the heat efficiency is improved, the heat loss is reduced, and the recovery of waste heat by using combustion waste gas is a very important subject. In the prior art, the heat exchanger mainly adopts a barrel type heat exchanger, an inserted tube type heat exchanger and a fin type heat exchanger to recover waste gas and waste heat of the bright furnace, but enough heat exchange area is required in a limited space, and the full recovery of the waste heat cannot be realized well. Therefore, at present, only partial waste heat recovery can be achieved, a large amount of waste heat is discharged, the increasingly harsh requirements on energy conservation and environmental protection are difficult to meet, and the heat treatment cost of the bright furnace is high.
Disclosure of Invention
In view of the above, the invention provides a heat exchanger for a stainless steel band polishing furnace, which can improve heat exchange efficiency and realize energy conservation and emission reduction.
The technical solution scheme involved in the invention is as follows:
a heat exchanger for stainless steel band furnace is composed of casing with heat exchanging cavity, two baffles with spiral air guide strips and multiple air guide plates, multiple air gathering covers at both ends of main cylinder, combustion-supporting air inlet tube on one air gathering cover, combustion-supporting air outlet tube on another air gathering cover, hot waste gas inlet tube at one end of main cylinder close to combustion-supporting air inlet tube, hot waste gas outlet tube at one end of main cylinder close to combustion-supporting air outlet tube, two baffles fixed to the joint between main cylinder and air gathering cover, multiple through holes for heat exchange tubes, spiral air guide strips in each heat exchange tube, and multiple air guide plates between two baffles, each guide plate is provided with a guide groove, each heat exchange tube penetrates through each guide plate, and the guide grooves on two adjacent guide plates are staggered by a certain distance.
Furthermore, the main cylinder body adopts a cylindrical structure, and the gas gathering cover adopts a cone-shaped cover body.
Further, the main cylinder body is of a cuboid structure, and the gas gathering cover is a quadrangular frustum pyramid cover body.
Furthermore, the two baffles and the plurality of heat exchange tubes are welded together by adopting stainless steel materials.
Furthermore, the combustion-supporting gas input pipe, the combustion-supporting gas output pipe, the hot waste gas input pipe and the hot waste gas output pipe are all connected with flange plates.
Further, the hot waste gas input pipe and the hot waste gas output pipe are respectively arranged on the opposite sides of the main cylinder body.
According to the heat exchanger of the stainless steel band bright furnace, hot waste gas is input into the main cylinder body through the hot waste gas input pipe, the hot waste gas sequentially bypasses the diversion grooves on each diversion plate and is finally output from the hot waste gas output pipe, so that the heat exchange time of the hot waste gas and each heat exchange pipe is prolonged, and the heat of the hot waste gas is fully utilized. Meanwhile, each heat exchange tube is supported by the guide plates, so that the heat exchange area is increased, the heat exchange tubes are reinforced, the heat exchange tubes are prevented from being deformed and damaged due to thermal expansion and cold contraction, and the service life of the equipment is greatly prolonged. The spiral air guide strips are arranged in each heat exchange tube, the combustion-supporting air is input into the air gathering cover through the combustion-supporting air input tube, the combustion-supporting air forms spirally extending air flow through the spiral air guide strips in each heat exchange tube, so that heat conduction and heat radiation of heat energy are facilitated, the heat exchange time of the combustion-supporting air is prolonged, the heat exchange speed of the heat energy is increased, the heat exchange efficiency is improved, and energy conservation and emission reduction are facilitated.
The invention also provides an energy-saving combustion system, which comprises a bright furnace, a burner, a hot waste gas fan, a combustion-supporting gas fan, a plurality of pipelines and the heat exchanger for the stainless steel band bright furnace, wherein a hot waste gas outlet of the bright furnace is connected with a hot waste gas input pipe through the pipelines and the hot waste gas fan, a hot waste gas output pipe is connected with a waste gas purification device through the pipelines, the combustion-supporting gas fan is connected with the combustion-supporting gas input pipe through the pipelines, and the combustion-supporting gas output pipe is connected with a combustion-supporting gas input port of the burner through the pipelines.
The heat exchange tube exchanges heat of fresh air into hot air, and then the hot air is sent into the combustor to be mixed with fuel gas for combustion, so that the combustion heat value of the fuel gas is improved, the energy utilization rate is improved, and energy conservation and emission reduction are well realized.
Drawings
FIG. 1 is a perspective view of a heat exchanger for a stainless steel band furnace according to the present invention;
FIG. 2 is a schematic longitudinal sectional view of a heat exchanger for a stainless steel band furnace according to the present invention;
fig. 3 is a cross-sectional view taken along line a-a of fig. 2.
Detailed Description
The technical solution in the embodiments of the present invention is clearly and completely described below with reference to the drawings in the embodiments of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.
Referring to fig. 1 to 3, the present invention provides a heat exchanger for a stainless steel band furnace, comprising a housing 1, two baffles 2, a plurality of heat exchange tubes 3, a spiral air guide strip 4 and a flow guide plate 5, wherein the housing 1 is formed with a heat exchange cavity, the housing 1 comprises a main cylinder 11 and an air collecting cover 12, the two ends of the main cylinder 11 are respectively provided with the air collecting cover 12, one air collecting cover 12 is provided with a combustion-supporting gas input tube 13, the other air collecting cover 12 is provided with a combustion-supporting gas output tube 14, one end of the main cylinder 11 close to the combustion-supporting gas input tube 13 is provided with a hot waste gas input tube 15, one end of the main cylinder 11 close to the combustion-supporting gas output tube 14 is provided with a hot waste gas output tube 16, the two baffles 2 are respectively fixed at the corresponding connection positions of the main cylinder 11 and the air collecting cover 12, the periphery of each baffle 2 is fixedly connected with the inner wall of the main cylinder 11 in a sealing manner, each baffle 2 is provided with a plurality of, each heat exchange tube 3 is internally provided with a spiral air guide strip 4, a plurality of guide plates 5 are arranged between the two baffles 2 in the main barrel body 11, each guide plate 5 is provided with a guide groove 51, each heat exchange tube 3 passes through each guide plate 5, the guide grooves 51 on two adjacent guide plates 5 are staggered by a certain distance, namely, the guide groove 51 on one guide plate 5 is close to the upper inner wall of the main barrel body 11, and the guide groove 51 on the other guide plate 5 adjacent to the guide groove is close to the lower inner wall of the main barrel body 11.
According to the heat exchanger of the stainless steel band bright furnace, hot waste gas is input into the main cylinder body 11 through the hot waste gas input pipe 15, and the hot waste gas sequentially bypasses the diversion grooves 51 on each diversion plate 5 and is finally output from the hot waste gas output pipe 16, so that the heat exchange time of the hot waste gas and each heat exchange pipe 3 is prolonged, and the heat of the hot waste gas is fully utilized. Meanwhile, each heat exchange tube 3 is beneficial to increasing the heat exchange area and reinforcing each heat exchange tube 3 under the supporting action of the guide plates 5, so that the heat exchange tubes are prevented from being deformed and damaged due to thermal expansion and cold contraction, and the service life of the equipment is greatly prolonged. The spiral air guide strips 4 are arranged in each heat exchange tube 3, the combustion-supporting air is input into the air gathering cover 12 through the combustion-supporting air input tube 13, and the combustion-supporting air passes through the spiral air guide strips 4 in each heat exchange tube 3 to form spirally extending air flow, so that heat conduction and heat radiation of heat energy are facilitated, the heat exchange time of the combustion-supporting air is prolonged, the heat exchange speed of the heat energy is increased, the heat exchange efficiency is improved, and energy conservation and emission reduction are facilitated.
The main cylinder 11 may be a cylindrical structure, and the gas collecting cover 12 may be a truncated cone cover. Or, the main cylinder 11 can adopt a cuboid structure, and the gas-collecting cover 12 adopts a quadrangular frustum pyramid cover body, so as to facilitate processing and manufacturing.
The two baffles 2 and the plurality of heat exchange tubes 3 can be welded together by stainless steel materials.
The combustion-supporting gas input pipe 13, the combustion-supporting gas output pipe 14, the hot waste gas input pipe 15 and the hot waste gas output pipe 16 are all connected with flange plates for sealing connection with corresponding pipelines. The hot exhaust gas input pipe 15 and the hot exhaust gas output pipe 16 are respectively disposed at opposite sides of the main cylinder 11 to facilitate pipe connection.
The invention also provides an energy-saving combustion system of the heat exchanger applying the stainless steel band bright furnace, which comprises a bright furnace, a burner, a hot waste gas fan, a combustion-supporting gas fan and a plurality of pipelines, wherein a hot waste gas outlet of the bright furnace is connected with a hot waste gas input pipe 15 through the pipeline and the hot waste gas fan, a hot waste gas output pipe 16 is connected with a waste gas purification device through the pipeline, the combustion-supporting gas fan is connected with a combustion-supporting gas input pipe 13 through the pipeline, and a combustion-supporting gas output pipe 14 is connected with a combustion-supporting gas input port of the burner through the pipeline.
The heat exchange tube 3 exchanges heat of fresh air into hot air, and then the hot air is sent into the combustor to be mixed with fuel gas for combustion, so that the combustion heat value of the fuel gas is improved, the energy utilization rate is improved, and energy conservation and emission reduction are well realized.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A heat exchanger for a stainless steel band bright furnace comprises a shell (1), two baffles (2) and a plurality of heat exchange tubes (3), wherein a heat exchange cavity is formed in the shell (1), the shell (1) comprises a main cylinder body (11) and a gas gathering cover (12), the two ends of the main cylinder body (11) are respectively provided with the gas gathering cover (12), one gas gathering cover (12) is provided with a combustion-supporting gas input tube (13), the other gas gathering cover (12) is provided with a combustion-supporting gas output tube (14), one end of the main cylinder body (11) close to the combustion-supporting gas input tube (13) is provided with a hot waste gas input tube (15), one end of the main cylinder body (11) close to the combustion-supporting gas output tube (14) is provided with a hot waste gas output tube (16), the two baffles (2) are respectively fixed at the corresponding connection positions of the main cylinder body (11) and the gas gathering cover (12), the periphery of each baffle (2) is, be equipped with a plurality of through-holes that supply heat exchange tube (3) to wear to establish on each baffle (2), the both ends of each heat exchange tube (3) are worn to establish respectively and are fixed in the through-hole that corresponds, a serial communication port, the heat exchanger still includes spiral air guide strip (4) and guide plate (5), is equipped with spiral air guide strip (4) in each heat exchange tube (3), lies in main barrel (11) and is equipped with polylith guide plate (5) between two baffles (2), is equipped with guiding gutter (51) on each guide plate (5), each heat exchange tube (3) pass each guide plate (5), the guiding gutter (51) on two adjacent guide plates (5) certain distance that staggers.
2. The heat exchanger for a stainless steel strip furnace according to claim 1, wherein the main cylinder (11) is of a cylindrical structure, and the gas collecting hood (12) is of a truncated cone-shaped hood body.
3. The heat exchanger for the stainless steel strip bright furnace according to claim 1, characterized in that the main cylinder (11) adopts a rectangular parallelepiped structure, and the gas collecting hood (12) adopts a quadrangular frustum pyramid hood body.
4. The heat exchanger for a stainless steel strip furnace for brightening according to claim 1, wherein the two baffles (2) and the plurality of heat exchange tubes (3) are welded together by using stainless steel material.
5. The heat exchanger for a stainless steel strip furnace according to claim 1, wherein flanges are connected to the combustion-supporting gas input pipe (13), the combustion-supporting gas output pipe (14), the hot exhaust gas input pipe (15) and the hot exhaust gas output pipe (16).
6. The heat exchanger for a stainless steel strip bright furnace according to claim 1, characterized in that the hot exhaust gas input pipe (15) and the hot exhaust gas output pipe (16) are respectively disposed at opposite sides of the main cylinder (11).
7. An energy-saving combustion system, comprising a bright furnace, a burner, a hot waste gas fan, a combustion-supporting gas fan and a plurality of pipelines, characterized in that, the system also comprises a heat exchanger for the stainless steel band bright furnace according to any one of claims 1 to 6, the hot waste gas outlet of the bright furnace is connected with a hot waste gas input pipe (15) through the pipeline and the hot waste gas fan, a hot waste gas output pipe (16) is connected with a waste gas purification device through the pipeline, the combustion-supporting gas fan is connected with the combustion-supporting gas input pipe (13) through the pipeline, and the combustion-supporting gas output pipe (14) is connected with the combustion-supporting gas input port of the burner through the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911362260.2A CN111059930A (en) | 2019-12-26 | 2019-12-26 | Heat exchanger for stainless steel band bright furnace and energy-saving combustion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911362260.2A CN111059930A (en) | 2019-12-26 | 2019-12-26 | Heat exchanger for stainless steel band bright furnace and energy-saving combustion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111059930A true CN111059930A (en) | 2020-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911362260.2A Pending CN111059930A (en) | 2019-12-26 | 2019-12-26 | Heat exchanger for stainless steel band bright furnace and energy-saving combustion system |
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| CN (1) | CN111059930A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200209125A1 (en) * | 2018-12-29 | 2020-07-02 | Kaloon Analytical Instruments (Beijing) Co., Ltd. | Fractionation gas sampling device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206583333U (en) * | 2017-02-16 | 2017-10-24 | 神华集团有限责任公司 | Heat exchanger and the alkene generating means with it |
| CN207019512U (en) * | 2017-08-01 | 2018-02-16 | 天津科林泰克科技有限公司 | A kind of high efficiency tubular heat-exchanger |
| CN207485517U (en) * | 2017-09-01 | 2018-06-12 | 无锡市林源热交换器有限公司 | A kind of new and effective aerial cooler |
| CN109681892A (en) * | 2017-10-18 | 2019-04-26 | 佛山安洁保节能设备有限公司 | Burned waste gas device |
-
2019
- 2019-12-26 CN CN201911362260.2A patent/CN111059930A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206583333U (en) * | 2017-02-16 | 2017-10-24 | 神华集团有限责任公司 | Heat exchanger and the alkene generating means with it |
| CN207019512U (en) * | 2017-08-01 | 2018-02-16 | 天津科林泰克科技有限公司 | A kind of high efficiency tubular heat-exchanger |
| CN207485517U (en) * | 2017-09-01 | 2018-06-12 | 无锡市林源热交换器有限公司 | A kind of new and effective aerial cooler |
| CN109681892A (en) * | 2017-10-18 | 2019-04-26 | 佛山安洁保节能设备有限公司 | Burned waste gas device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200209125A1 (en) * | 2018-12-29 | 2020-07-02 | Kaloon Analytical Instruments (Beijing) Co., Ltd. | Fractionation gas sampling device |
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