CN210103738U - Device for recovering heat energy of smoke discharged by glass kiln by using water pipe - Google Patents
Device for recovering heat energy of smoke discharged by glass kiln by using water pipe Download PDFInfo
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- CN210103738U CN210103738U CN201920838677.0U CN201920838677U CN210103738U CN 210103738 U CN210103738 U CN 210103738U CN 201920838677 U CN201920838677 U CN 201920838677U CN 210103738 U CN210103738 U CN 210103738U
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- evaporator
- heat exchange
- flue gas
- boiler
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
Abstract
A device for recovering heat energy of exhaust smoke of a glass kiln by utilizing a water pipe comprises an upper boiler barrel and a lower heat exchange boiler, wherein a vertically arranged smoke channel is arranged in the heat exchange boiler, the heat exchange boiler is provided with a heat exchange device on the smoke channel, and the heat exchange device comprises a primary evaporator and a secondary evaporator which are sequentially arranged along the smoke flowing direction; heat exchange tube structures are arranged in the first-stage evaporator and the second-stage evaporator, and the heat exchange tubes of the first-stage evaporator and the second-stage evaporator are of water tube structures; heat carrier water is introduced into the heat exchange tubes of the primary evaporator and the secondary evaporator and exchanges heat with the flue gas in the flue gas channel through the heating surfaces of the primary evaporator and the secondary evaporator. The utility model discloses a waste heat recovery device can realize that glass kiln exhaust contains the high-efficient recovery of heat energy in the ash-containing middle temperature flue gas of sulphur, improves the energy utilization, discharges simultaneously and reaches energy-concerving and environment-protective requirement.
Description
Technical Field
The utility model relates to a waste heat recovery technical field, concretely relates to utilize water pipe of four tube ring modularization structure to carry out device that retrieves to glass kiln heat energy of discharging fume.
Background
In recent years, as the environmental protection is continuously improved in China, certain industries with large energy consumption and serious pollution require energy conservation and emission reduction technical transformation, wherein the glass industry is also one of the industries. The medium temperature flue gas discharged from the glass kiln has to be subjected to desulfurization, denitrification, dedusting and cooling treatment, and can be discharged after reaching the standard. The waste heat of the medium-temperature flue gas exhausted by the glass kiln is recycled, so that not only can the energy be greatly saved, but also the adverse effect of thermal pollution generated by thermal radiation on the environment can be reduced.
The flue gas discharged from the glass kiln is medium-temperature flue gas which contains a certain amount of SO2And sulfur-containing substances such as mirabilite and the like are prepared from common carbon steel as the traditional waste heat boiler material, and the temperature of the flue gas and the pipe wall of the heated surface area at the tail part of the waste heat boiler is lower, so that the temperature of the flue gas is reduced to be below an acid dew point, the sulfur-containing substances are dissolved in dew at the moment and become sulfuric acid, and the sulfuric acid reacts with the carbon steel electrochemically to generate corrosion, and finally the safety accident of the waste heat boiler is caused. Contain a certain amount of ash in the flue gas simultaneously, when acid appears, the ash can bond on the heat exchange tube together with dew, leads to the deposition serious, and the heat transfer effect worsens, and waste heat recovery boiler evaporation capacity reduces, leads to heat recovery efficiency lower.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides an utilize water pipe of four-pipe ring modular structure to carry out high-efficient device of retrieving to glass kiln heat energy of discharging fume.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a device for recovering heat energy of exhaust smoke of a glass kiln by utilizing a water pipe comprises an upper boiler barrel and a lower heat exchange boiler, wherein a vertically arranged smoke channel is arranged in the heat exchange boiler, the heat exchange boiler is provided with a heat exchange device on the smoke channel, and the heat exchange device comprises a primary evaporator and a secondary evaporator which are sequentially arranged along the smoke flowing direction; heat exchange tube structures are arranged in the first-stage evaporator and the second-stage evaporator, and the heat exchange tubes of the first-stage evaporator and the second-stage evaporator are of water tube structures; heat carrier water is introduced into the heat exchange tubes of the primary evaporator and the secondary evaporator and exchanges heat with the flue gas in the flue gas channel through the heating surfaces of the primary evaporator and the secondary evaporator.
Furthermore, the boiler barrel is respectively connected with inlet headers of the primary evaporator and the secondary evaporator through a downcomer, and outlet headers of the primary evaporator and the secondary evaporator are respectively connected with the boiler barrel through an ascending pipe; the water after preheating and deoxidization in the boiler barrel is led into an inlet header through a downcomer, the water is evenly led into water pipe structures of a first-stage evaporator and a second-stage evaporator for heat exchange/heat absorption by the inlet header to generate a steam-water mixture, then the steam-water mixture is led into the upper boiler barrel through an ascending pipe for steam-water separation after being converged by an outlet header, and the separated water is sent into the inlet header through the downcomer to realize circulation.
Furthermore, the heat exchange boiler is of a vertical structure, the lower part of the heat exchange boiler is provided with a flue gas inlet, the upper part of the heat exchange boiler is provided with a flue gas outlet, and flue gas flows in the flue gas channel from bottom to top to brush the heat exchange tube bundle.
Further, the first-stage evaporator and the second-stage evaporator are of modular structures, the first-stage evaporator and the second-stage evaporator of the modular structures are longitudinally overlapped, a smoke channel is formed inside the first-stage evaporator and the second-stage evaporator, the modular structures are convenient to install, and the rigidity and the sealing performance are good.
Further, the structure of the longitudinal section of the primary evaporator and the secondary evaporator with the modular structure from outside to inside comprises: outer casing, insulation construction, flue board, water piping structure, the inside flue board, the space of water piping structure are the flue gas passageway that supplies the flue gas circulation promptly.
Further, the water pipe structure be four tube coil modularization structure, it includes first tube coil, second tube coil, third tube coil and the fourth tube coil of both ends respectively with import collection case and export collection case intercommunication, first tube coil, second tube coil, third tube coil and fourth tube coil are the snakelike return bend of looks isostructure inside the evaporimeter.
Furthermore, an ash bucket is arranged at the bottom of the heat exchange boiler.
Furthermore, soot blowers are arranged on the side surfaces of the primary evaporator and the secondary evaporator.
Compared with the prior art, the utility model discloses the advantage that possesses does: the waste heat recovery device of the utility model can realize the high-efficiency recovery of heat energy in the sulfur-containing ash-containing medium-temperature flue gas discharged by the glass kiln, improve the energy utilization, and simultaneously discharge to reach the requirements of energy conservation and environmental protection, and the waste heat recovery device of the utility model has simple operation, convenient maintenance and stable performance, and can ensure long-term, reliable, high-efficiency and economic operation; in the heat exchange structure of the utility model, the heat exchange tubes of the first-stage evaporator and the second-stage evaporator both adopt a four-tube-ring modular water tube structure, the structure can avoid the corrosion of the heat exchange tubes during the heat recovery of sulfur-containing ash-containing medium-temperature flue gas discharged by a glass kiln, the use safety is high, the pitch of the heat exchange tubes is large, the ash in the flue gas is not easy to bridge and deposit ash to influence the heat transfer, and the heat exchange device can keep high heat recovery efficiency; the heat exchange device adopts an evaporation heat exchange structure of the two-stage evaporator, and can realize high-efficiency heat exchange of flue gas.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side view of the present invention;
fig. 3 is a schematic diagram of a four-coil modular structure.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, the device for recovering heat energy of exhaust smoke of a glass kiln by using water pipes comprises an upper boiler barrel 1 and a lower heat exchange boiler 2, wherein a smoke channel is vertically arranged in the heat exchange boiler 2, and the heat exchange boiler 2 is provided with a heat exchange device on the smoke channel, and the heat exchange device comprises a primary evaporator 21 and a secondary evaporator 22 which are sequentially arranged according to the smoke flowing direction; heat exchange tube structures are arranged in the first-stage evaporator 21 and the second-stage evaporator 22 respectively, and the heat exchange tubes of the first-stage evaporator 21 and the second-stage evaporator 22 are of water tube structures; heat carrier water is introduced into the heat exchange tubes of the primary evaporator 21 and the secondary evaporator 22 and exchanges heat with the flue gas in the flue gas channel through the heating surfaces of the primary evaporator 21 and the secondary evaporator 22, and the water tube evaporator recovers the waste heat of the medium-temperature flue gas to generate saturated steam.
Further, the drum 1 is respectively connected with the inlet header 25 of the first-stage evaporator 21 and the second-stage evaporator 22 through the downcomer 23, and the outlet header 26 of the first-stage evaporator 21 and the second-stage evaporator 22 are respectively connected with the drum 1 through the riser 24; 104 ℃ feed water after being deoxidized by a thermal deaerator is sent into the boiler barrel 1, water in the boiler barrel 1 is led into an inlet header 25 through a downcomer 23, the water is evenly led into water pipe structures of a first-stage evaporator 21 and a second-stage evaporator 22 by the inlet header 25 to exchange heat/absorb heat to generate a steam-water mixture, then the steam-water mixture is converged by an outlet header 26 and then led into the upper boiler barrel 1 through an ascension pipe 24 to be subjected to steam-water separation, separated steam is sent out for production and use, and the separated water is sent into the inlet header 25 through the downcomer 23 to realize circulation and continuously generate the steam.
Further, the heat exchange boiler 2 is of a vertical structure, the lower portion of the heat exchange boiler 2 is provided with a flue gas inlet 27, the upper portion of the heat exchange boiler 2 is provided with a flue gas outlet 28, flue gas enters the flue gas channel from the lower flue gas inlet 27, and the flue gas is discharged from the upper flue gas outlet 28 after the heat exchange tube bundle is vertically brushed upwards in the flue gas channel from the lower side. Flue gas generated by the glass kiln enters the heat exchange boiler 2 through a flue gas inlet 27, sequentially passes through the primary evaporator 21 module, the secondary evaporator 22 module and the flue gas outlet 28, and is subjected to heat exchange and temperature reduction in the heating surfaces of the primary evaporator 21 module and the secondary evaporator 22 module, and finally is discharged into the atmosphere at a lower temperature.
Further, the first-stage evaporator 21 and the second-stage evaporator 22 are both of a modular structure, the first-stage evaporator 21 and the second-stage evaporator 22 of the modular structure are longitudinally superposed, a flue gas channel is formed inside the first-stage evaporator 21 and the second-stage evaporator 22 of the modular structure, the modular structure is convenient to install, and the rigidity and the sealing performance are good.
Further, the structure of the longitudinal section of the primary evaporator 21 and the secondary evaporator 22 in the modular structure from outside to inside comprises: the outer casing 201, insulation construction 202, flue board 203, water piping structure, the flue board is inside, the space of water piping structure is the flue gas passageway that supplies the flue gas circulation promptly.
Further, the water pipe structure is a four-coil modular structure, and includes a first coil 204, a second coil 205, a third coil 206 and a fourth coil 207, both ends of which are respectively communicated with the inlet header 25 and the outlet header 26, the first coil 204, the second coil 205, the third coil 206 and the fourth coil 207 are serpentine bends having the same structure inside the evaporator, and the first coil 204, the second coil 205, the third coil 206 and the fourth coil 207 are welded to the flue plate 203 together with the inlet header 25 and the outlet header 26, as an integral module, so as to facilitate installation and improve usability. Through practical use tests, the temperature of working medium water in the pipe is about 175 ℃, the temperature of flue gas is between 595 ℃ and 363 ℃, the temperature of the side wall of the pipe wall in contact with the flue gas is about 230 ℃, the temperature is far higher than the acidity critical value of 200 ℃, the acid dew point temperature is not reached, and the water wall pipe cannot be damaged; the pitch of the heat exchange tube is large, so that ash in the flue gas is not easy to bridge and deposit ash to influence heat transfer; meanwhile, the modularized design is convenient for site construction, and the installation workload on site can be greatly reduced; and the sealing module structure of the evaporator has very good rigidity and sealing performance, and good sealing performance effectively prevents external cold air from leaking into the boiler, thereby improving the heat recovery rate of the boiler.
Further, the bottom of the heat exchange boiler 2 is provided with an ash hopper 29 for collecting dust settled in the heat exchange boiler 2, and an ash outlet for discharging the dust out of the heat exchange boiler 2 is provided.
Further, soot blowers 30 are arranged on the side surfaces of the primary evaporator 21 and the secondary evaporator 22, and are used for blowing dust adhered to the outer wall surfaces of the water pipes in the primary evaporator 21 and the secondary evaporator 22 to enable the dust to fall into the dust hopper 29.
The utility model discloses an utilize device of water pipe recovery glass kiln heat energy of discharging fume still includes steelframe 3 for support heating surface equipment weight at different levels, platform staircase 4 is used for the driver's furnace personnel to walk to each position of boiler and patrol inspection operation. The utility model discloses rational in infrastructure, the boiler is according to rated load operation, can satisfy simultaneously and become the load needs to easy operation, it is convenient to maintain, and the stable performance can ensure long-term, reliable, high-efficient, economic operation. At present, the waste heat recovery device has obvious energy-saving effect and does not generate the phenomena of dust accumulation and corrosion after continuously operating for 1 year.
Claims (8)
1. The utility model provides an utilize water pipe to retrieve device of glass kiln heat energy of discharging fume which characterized in that: the heat exchange boiler comprises an upper boiler barrel and a lower heat exchange boiler, wherein a flue gas channel is vertically arranged in the heat exchange boiler, a heat exchange device is arranged on the flue gas channel of the heat exchange boiler, and the heat exchange device comprises a primary evaporator and a secondary evaporator which are sequentially arranged along the flow direction of flue gas; heat exchange tube structures are arranged in the first-stage evaporator and the second-stage evaporator, and the heat exchange tubes of the first-stage evaporator and the second-stage evaporator are of water tube structures; heat carrier water is introduced into the heat exchange tubes of the primary evaporator and the secondary evaporator and exchanges heat with the flue gas in the flue gas channel through the heating surfaces of the primary evaporator and the secondary evaporator.
2. The device for recovering the heat energy of the exhaust smoke of the glass kiln by using the water pipe as claimed in claim 1, wherein: the boiler barrel is respectively connected with inlet headers of the primary evaporator and the secondary evaporator through a downcomer, and outlet headers of the primary evaporator and the secondary evaporator are respectively connected with the boiler barrel through an ascending pipe; the water after preheating and deoxidization in the boiler barrel is led into an inlet header through a downcomer, the water is evenly led into water pipe structures of a first-stage evaporator and a second-stage evaporator for heat exchange/heat absorption by the inlet header to generate a steam-water mixture, then the steam-water mixture is led into the upper boiler barrel through an ascending pipe for steam-water separation after being converged by an outlet header, and the separated water is sent into the inlet header through the downcomer to realize circulation.
3. The device for recovering the heat energy of the exhaust smoke of the glass kiln by using the water pipe as claimed in claim 1, wherein: the heat exchange boiler is of a vertical structure, a flue gas inlet is formed in the lower portion of the heat exchange boiler, a flue gas outlet is formed in the upper portion of the heat exchange boiler, and flue gas flows in the flue gas channel from bottom to top in a vertical mode to brush the heat exchange tube bundle.
4. The device for recovering the heat energy of the exhaust smoke of the glass kiln by using the water pipe as claimed in claim 1 or 2, wherein: the first-stage evaporator and the second-stage evaporator are of modular structures, and are longitudinally superposed, and a flue gas channel is formed inside the first-stage evaporator and the second-stage evaporator.
5. The device for recovering the heat energy of the exhaust smoke of the glass kiln by using the water pipe as claimed in claim 4, wherein: the structure of the longitudinal section of the primary evaporator and the secondary evaporator with the modular structure from outside to inside comprises: outer casing, insulation construction, flue board, water piping structure, the inside flue board, the space of water piping structure are the flue gas passageway that supplies the flue gas circulation promptly.
6. The apparatus for recovering heat energy of exhaust gas of glass kiln using water pipe as claimed in claim 1, 2 or 5, wherein: the water pipe structure be four tube coil modularization structure, it includes first tube coil, second tube coil, third tube coil and fourth tube coil that both ends communicate with import collection case and export collection case respectively, first tube coil, second tube coil, third tube coil and fourth tube coil are the snakelike return bend of looks isostructure inside the evaporimeter.
7. The device for recovering the heat energy of the exhaust smoke of the glass kiln by using the water pipe as claimed in claim 1 or 3, wherein: an ash bucket is arranged at the bottom of the heat exchange boiler.
8. The device for recovering the heat energy of the exhaust smoke of the glass kiln by using the water pipe as claimed in claim 4, wherein: and soot blowers are arranged on the side surfaces of the first-stage evaporator and the second-stage evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920838677.0U CN210103738U (en) | 2019-06-05 | 2019-06-05 | Device for recovering heat energy of smoke discharged by glass kiln by using water pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920838677.0U CN210103738U (en) | 2019-06-05 | 2019-06-05 | Device for recovering heat energy of smoke discharged by glass kiln by using water pipe |
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| Publication Number | Publication Date |
|---|---|
| CN210103738U true CN210103738U (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920838677.0U Active CN210103738U (en) | 2019-06-05 | 2019-06-05 | Device for recovering heat energy of smoke discharged by glass kiln by using water pipe |
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| Country | Link |
|---|---|
| CN (1) | CN210103738U (en) |
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2019
- 2019-06-05 CN CN201920838677.0U patent/CN210103738U/en active Active
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