CN210464074U - Float glass annealing kiln exhaust-heat boiler - Google Patents
Float glass annealing kiln exhaust-heat boiler Download PDFInfo
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- CN210464074U CN210464074U CN201921007396.7U CN201921007396U CN210464074U CN 210464074 U CN210464074 U CN 210464074U CN 201921007396 U CN201921007396 U CN 201921007396U CN 210464074 U CN210464074 U CN 210464074U
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- heat boiler
- economizer
- evaporator
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- waste heat
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model relates to a float glass annealing kiln exhaust-heat boiler, its difference lies in: the system comprises a water pump, an annealing kiln waste heat boiler, a glass kiln tail end waste heat boiler with a superheater arranged inside and a steam turbine generator which are connected in sequence; the annealing kiln waste heat boiler comprises an economizer, a first steam drum, an evaporator and an air pipe, wherein a hot air inlet of the air pipe is communicated with an air outlet of the annealing kiln; the economizer comprises an economizer inlet header, a first integral spiral finned tube and an economizer outlet header which are sequentially communicated, wherein the economizer inlet header is connected with the water pump, and the economizer outlet header is communicated with the first steam pocket; the evaporator comprises an evaporator inlet header, a second integral spiral finned tube and an evaporator outlet header which are sequentially communicated, wherein the evaporator inlet header and the evaporator outlet header are respectively communicated with the first steam pocket. The utility model has the characteristics of energy-efficient, safe and reliable, environmental protection etc.
Description
Technical Field
The utility model belongs to the technical field of exhaust-heat boiler equipment and specifically relates to a float glass annealing kiln exhaust-heat boiler.
Background
The float glass in China has huge yield and consumes a great deal of energy. The high-temperature glass liquid is cooled by an annealing kiln to form a glass product. However, most of the heat energy of the traditional annealing kiln is discharged to the atmosphere, which causes resource waste. If the heat released in the glass annealing process is utilized, the energy consumption of glass products can be greatly reduced, and the production cost of glass is reduced. Therefore, a waste heat boiler capable of effectively recovering waste heat is urgently needed.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a float glass annealing kiln exhaust-heat boiler which has the characteristics of high efficiency, energy conservation, safety, reliability, environmental protection and the like.
For solving the above technical problem, the technical scheme of the utility model is that: a float glass annealing kiln exhaust-heat boiler is characterized in that: the system comprises a water pump, an annealing kiln waste heat boiler, a glass kiln tail end waste heat boiler with a superheater arranged inside and a steam turbine generator which are connected in sequence; the annealing kiln waste heat boiler comprises an economizer, a first steam drum, an evaporator and an air pipe, wherein a hot air inlet of the air pipe is communicated with an air outlet of the annealing kiln, and the evaporator and the economizer are respectively arranged in the air pipe; the economizer comprises an economizer inlet header, a first integral spiral finned tube and an economizer outlet header which are sequentially communicated, wherein the economizer inlet header is connected with the water pump, and the economizer outlet header is communicated with the first steam pocket; the evaporator comprises an evaporator inlet header, a second integral spiral finned tube and an evaporator outlet header which are sequentially communicated, wherein the evaporator inlet header and the evaporator outlet header are respectively communicated with the first steam pocket.
According to the technical scheme, the waste heat boiler at the tail end of the glass kiln comprises the superheater and a second steam drum connected with the first steam drum, wherein the superheater is provided with a superheater inlet header and a superheater outlet header, the superheater inlet header and the superheater outlet header are respectively connected with the second steam drum, and the second steam drum is connected with the turbine generator.
According to the technical scheme, a steam pipeline is formed at the top of the first steam drum and is connected with the second steam drum.
According to the technical scheme, the first integral spiral finned tube is formed by integrally bending and twisting a first spiral finned tube with a multi-layer space structure.
According to the technical scheme, the first spiral finned tubes of the two adjacent layers are arranged in a staggered mode respectively.
According to the technical scheme, the second integral spiral finned tube is formed by integrally bending and twisting a second spiral finned tube with a multi-layer space structure.
According to the technical scheme, the second spiral finned tubes of the two adjacent layers are arranged in a staggered mode respectively.
Contrast prior art, the beneficial characteristics of the utility model are that: according to the float glass annealing kiln waste heat boiler, an air pipe of the waste heat boiler is communicated with an air outlet of an annealing kiln, hot air exhausted from the air outlet of the annealing kiln enters the air pipe of the waste heat boiler, water for the boiler is pressurized by a water pump, feed water enters a first integral spiral finned tube sheet through an economizer inlet collection box, the feed water is heated into saturated water and then enters a first steam pocket through an economizer outlet collection box, an evaporator receives the feed water from the first steam pocket, the feed water enters a second integral spiral finned tube sheet through an evaporator inlet collection box, the heat of the hot air is absorbed, and the saturated steam is generated and then returns to the first steam pocket through an evaporator outlet collection box; saturated steam in the first steam drum is changed into superheated steam through the superheater, and the superheated steam enters the steam turbine generator to do work and generate electric energy; the first integral spiral finned tube and the second integral spiral finned tube are adopted, so that the areas of the heating surface of the economizer and the heating surface of the evaporator are increased, the contact time is prolonged, and the heat exchange efficiency is higher; the economizer and the evaporator respectively absorb the heat of hot air in the air duct, the air exhaust temperature is reduced, the air exhaust loss is reduced, the fuel is saved, the feed water is heated in the economizer before entering the first steam pocket, so the heating of the feed water on the heating surface of the evaporator is reduced, and the economizer can be used for replacing part of the heating surface of the evaporator with higher manufacturing cost; the economizer improves the temperature of the feed water entering the first steam pocket, reduces the wall temperature difference when entering the first steam pocket, correspondingly reduces the thermal stress, prolongs the service life of the first steam pocket, and has the advantages of high efficiency, energy conservation, safety, reliability and environmental protection.
Drawings
FIG. 1 is a schematic structural view of a float glass annealing kiln exhaust-heat boiler in an embodiment of the present invention;
FIG. 2 is a top view of an economizer in an embodiment of the present invention;
FIG. 3 is a side view of an economizer in an embodiment of the present invention;
FIG. 4 is a top view of an evaporator according to an embodiment of the present invention;
FIG. 5 is a side view of an evaporator according to an embodiment of the present invention;
it includes: 1-air pipes (101-hot air inlets and 102-hot air outlets), 2-a first steam drum (201-steam pipeline), 3-evaporators (301-evaporator inlet header, 302-second integral spiral finned tubes and 303-evaporator outlet header), 4-economizers (401-economizer inlet header, 402-first integral spiral finned tubes and 403-economizer outlet header).
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 5, a float glass annealing furnace waste heat boiler according to an embodiment of the present invention includes a water pump, an annealing furnace waste heat boiler, a glass furnace tail end waste heat boiler with a superheater inside, and a turbine generator, which are connected in sequence; the annealing kiln waste heat boiler comprises a water pump, an economizer 4, a first steam pocket 2, an evaporator 3 and an air pipe 1, wherein a hot air inlet 101 of the air pipe 1 is communicated with an exhaust outlet of the annealing kiln, so that hot air exhausted from the exhaust outlet of the annealing kiln enters the air pipe 1 of the waste heat boiler, and the evaporator 3 and the economizer 4 are respectively arranged in the air pipe 1; the economizer 4 comprises an economizer inlet header 401, a first integral spiral finned tube 402 and an economizer outlet header 403 which are sequentially communicated, the economizer inlet header 401 is connected with a water pump, the economizer outlet header 403 is communicated with the first steam pocket 2 through a flange, boiler water is pressurized by the water pump, feed water enters the first integral spiral finned tube 402 through the economizer inlet header 401, and the feed water absorbs heat and is heated into saturated water and then enters the first steam pocket 2 through the economizer outlet header 403; the evaporator 3 comprises an evaporator inlet header 301, a second integral spiral finned tube 302 and an evaporator outlet header 303 which are sequentially communicated, the evaporator inlet header 301 is communicated with the first steam pocket 2 through a pipeline, the evaporator outlet header 303 is communicated with the first steam pocket 2 through a pipeline, the evaporator 3 receives feed water from the first steam pocket 2, the feed water enters the second integral spiral finned tube 302 after passing through the evaporator inlet header 301, hot air heat is absorbed, saturated steam is generated and then returns to the first steam pocket 2 through the evaporator outlet header 303, the saturated steam enters the superheater and becomes superheated steam, and the superheated steam enters the turbine generator to do work and generate power.
Preferably, glass kiln tail end exhaust-heat boiler includes the over heater, and the second steam pocket of being connected with first steam pocket 2, and the over heater has over heater import collection case and over heater export collection case, and over heater import collection case and over heater export collection case are connected with the second steam pocket respectively, and the second steam pocket is connected with turbo generator, and saturated steam gets into in the second steam pocket and steam to become superheated steam through the over heater and gets back to in the second steam pocket, superheated steam is used for turbo generator electricity generation.
Preferably, a steam pipe 201 is formed at the top of the first steam drum 2, and the steam pipe 201 is connected with the second steam drum, so that the saturated water steam enters the second steam drum and is vaporized.
Preferably, the air duct 1 has a hot air inlet 101 and a hot air outlet 102 which are oppositely arranged, hot air exhausted from an exhaust outlet of the annealing kiln enters the air duct 1 of the waste heat boiler through the hot air inlet 101, and the economizer 4 and the evaporator 3 change into cold air after absorbing heat of the hot air in the air duct 1 and exhaust the cold air through the hot air outlet 102.
Preferably, the first integral finned spiral tube 402 is formed by integrally bending and twisting a first finned spiral tube with a multi-layer space structure, and the first finned spiral tube is adopted, so that the area of the heating surface of the economizer 4 is increased, the contact time is prolonged, and the heat exchange efficiency is higher.
Preferably, the first integral type spiral finned tubes 402 of two adjacent layers are respectively arranged in a staggered mode, so that the heating surface area of the economizer 4 is increased, the contact time is prolonged, and the heat exchange efficiency is higher.
Preferably, the second integral type spiral fin tube 302 is formed by integrally bending and twisting a plurality of layers of spiral fin tubes in a spatial structure, and the area of the heating surface of the evaporator 3 is increased by adopting the second spiral fin tube, so that the contact time is prolonged, and the heat exchange efficiency is higher.
Preferably, the second integral type spiral finned tubes 302 of two adjacent layers are respectively arranged in a staggered mode, so that the area of the heating surface of the evaporator 3 is increased, the contact time is prolonged, and the heat exchange efficiency is higher.
Referring to fig. 1 to 5, in a float glass annealing furnace exhaust-heat boiler according to an embodiment of the present invention, an air duct 1 of the exhaust-heat boiler is communicated with an exhaust outlet of the annealing furnace, so that hot air exhausted from the exhaust outlet of the annealing furnace enters the air duct 1 of the exhaust-heat boiler; after boiler water is pressurized by a water pump, feed water enters a first integral spiral finned tube 402 sheet through an economizer inlet header 401, the feed water is heated into saturated water and then enters a first steam pocket 2 through an economizer outlet header 403, an evaporator 3 receives the feed water from the first steam pocket 2, the feed water enters a second integral spiral finned tube 302 sheet through an evaporator inlet header 301, absorbs heat of hot air, generates saturated steam and returns to the first steam pocket 2 through an evaporator outlet header 303; the steam pipeline 201 is connected with the second steam drum, saturated steam in the first steam drum 2 enters the second steam drum to be mixed, and returns to the second steam drum after being changed into superheated steam through the superheater, and the superheated steam enters the steam turbine generator to do work and generate electric energy; the first spiral finned tube and the second spiral finned tube are adopted, so that the areas of the heating surface of the economizer 4 and the heating surface of the evaporator 3 are increased, the contact time is prolonged, and the heat exchange efficiency is higher; the first integral type spiral finned tube 402 of the two adjacent layers and the second integral type spiral finned tube 302 of the two adjacent layers are respectively arranged in a staggered mode, so that the heating surface area of the economizer 4 and the evaporator 3 is increased, the contact time is prolonged, and the heat exchange efficiency is higher; the economizer 4 and the evaporator 3 respectively absorb the heat of hot air in the air pipe 1, the air exhaust temperature is reduced, the air exhaust loss is reduced, the fuel is saved, the feed water is heated in the economizer 4 before entering the first steam pocket 2, so the heating of the feed water on the heating surface of the evaporator 3 is reduced, and the economizer 4 can be used for replacing part of the heating surface of the evaporator 3 with higher manufacturing cost; the economizer 4 improves the temperature of the feed water entering the first steam pocket 2, the temperature difference of the wall is reduced when the feed water enters the first steam pocket 2, the thermal stress is correspondingly reduced, the service life of the first steam pocket 2 is prolonged, and the waste heat boiler has the advantages of high efficiency, energy conservation, safety, reliability, environmental protection and the like.
The above description is made for further details of the present invention with reference to specific embodiments, and it should not be understood that the embodiments of the present invention are limited to these descriptions, and it is obvious to those skilled in the art that the present invention belongs to the technical field, and a plurality of simple deductions or replacements can be made without departing from the concept of the present invention, and all should be considered as belonging to the protection scope of the present invention.
Claims (7)
1. A float glass annealing kiln exhaust-heat boiler is characterized in that: the system comprises a water pump, an annealing kiln waste heat boiler, a glass kiln tail end waste heat boiler with a superheater arranged inside and a steam turbine generator which are connected in sequence; the annealing kiln waste heat boiler comprises an economizer, a first steam drum, an evaporator and an air pipe, wherein a hot air inlet of the air pipe is communicated with an air outlet of the annealing kiln, and the evaporator and the economizer are respectively arranged in the air pipe; the economizer comprises an economizer inlet header, a first integral spiral finned tube and an economizer outlet header which are sequentially communicated, wherein the economizer inlet header is connected with the water pump, and the economizer outlet header is communicated with the first steam pocket; the evaporator comprises an evaporator inlet header, a second integral spiral finned tube and an evaporator outlet header which are sequentially communicated, wherein the evaporator inlet header and the evaporator outlet header are respectively communicated with the first steam pocket.
2. The float glass annealing lehr waste heat boiler as claimed in claim 1, wherein the glass furnace tail end waste heat boiler includes the superheater and a second steam drum connected to the first steam drum, the superheater has a superheater inlet header and a superheater outlet header, and the superheater inlet header and the superheater outlet header are connected to the second steam drum, respectively, and the second steam drum is connected to the turbine generator.
3. The float glass annealing lehr waste heat boiler as claimed in claim 2, wherein the first steam pocket is formed at its top with a steam pipe, and the steam pipe is connected to the second steam pocket.
4. The float glass annealing lehr waste heat boiler as claimed in claim 1, wherein the first integral turn-fin tube is formed by integrally bending and twisting a first turn-fin tube having a multi-layer space structure.
5. The float glass annealing lehr waste heat boiler as claimed in claim 4, wherein the first turn-fin tubes of adjacent two layers are arranged in a staggered manner.
6. The float glass annealing lehr waste heat boiler as claimed in claim 1, wherein the second integral turn-fin tube is formed by integrally bending and twisting a second turn-fin tube having a multi-layer space structure.
7. The float glass annealing lehr waste heat boiler as claimed in claim 6, wherein the second turn-fin tubes of adjacent two layers are arranged in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921007396.7U CN210464074U (en) | 2019-07-01 | 2019-07-01 | Float glass annealing kiln exhaust-heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921007396.7U CN210464074U (en) | 2019-07-01 | 2019-07-01 | Float glass annealing kiln exhaust-heat boiler |
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| Publication Number | Publication Date |
|---|---|
| CN210464074U true CN210464074U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921007396.7U Active CN210464074U (en) | 2019-07-01 | 2019-07-01 | Float glass annealing kiln exhaust-heat boiler |
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| CN (1) | CN210464074U (en) |
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2019
- 2019-07-01 CN CN201921007396.7U patent/CN210464074U/en active Active
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