CN112032699A - Boiler system for cleaning and efficiently recycling heat energy - Google Patents
Boiler system for cleaning and efficiently recycling heat energy Download PDFInfo
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- CN112032699A CN112032699A CN202011005432.3A CN202011005432A CN112032699A CN 112032699 A CN112032699 A CN 112032699A CN 202011005432 A CN202011005432 A CN 202011005432A CN 112032699 A CN112032699 A CN 112032699A
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- 238000004064 recycling Methods 0.000 title claims abstract description 11
- 238000004140 cleaning Methods 0.000 title claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 153
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical group [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003546 flue gas Substances 0.000 claims abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 17
- 239000000779 smoke Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims description 18
- 230000007797 corrosion Effects 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000009834 vaporization Methods 0.000 description 6
- 230000008016 vaporization Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/08—Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/36—Water and air preheating systems
- F22D1/38—Constructional features of water and air preheating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
- F23L15/04—Arrangements of recuperators
-
- 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
- F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
-
- 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
- F24H9/00—Details
-
- 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
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- 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
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
-
- 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)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fluid Mechanics (AREA)
- Air Supply (AREA)
Abstract
A boiler system for clean and efficient recycling of heat energy comprises a combustor, a boiler body, an energy saver, an air preheater, a condenser, a chimney, a fan and a water tank. The smoke outlet of the boiler body is connected with an economizer, the gas side outlet of the economizer is connected with an air preheater, the gas side outlet of the air preheater is connected with a condenser, the gas side outlet of the condenser is connected with a chimney, the chimney discharges smoke to the atmosphere, and the air preheater is a gas heat exchange device; the condenser is a gas-liquid heat exchanger, the gas side of the condenser is a flue gas flow channel, and the liquid side of the condenser is a heat exchange pipeline and is connected to the water tank through a pipeline and a circulating pump; both the economizer and the condenser adopt fin tube structures.
Description
Technical Field
The invention relates to the field of boilers, in particular to a boiler system for cleanly and efficiently recycling heat energy.
Background
With the continuous acceleration of the industrialization process of China and the continuous increase of energy consumption of China, energy conservation and environmental protection become a long-term strategy for economic construction and social development of China. The green development concept is implemented, a clean, low-carbon, safe and efficient energy system is constructed, resources are comprehensively saved, energy consumption and material consumption are reduced, and the method is a task of everyone in the society.
The influence factors of the efficiency of the fuel oil and gas boiler are smoke exhaust loss, chemical incomplete combustion loss, mechanical incomplete combustion loss, ash physical heat loss, cooling water heat loss and boiler heat dissipation loss, wherein the proportion of the smoke exhaust loss to each loss of the boiler is the largest. If the heat in the flue gas can be fully utilized, the efficiency of the boiler can be greatly improved. The structure of the condensing boiler system is that deaerated water is heated by an energy saver and then enters a boiler body, a condenser is used for independently and circularly replenishing water for the deaerator, the boiler system enables the heat energy efficiency to be improved to a certain degree, the actual field exhaust temperature is difficult to be reduced to be lower than the dew point temperature of smoke, the latent heat of vaporization of vapor in the smoke is not fully utilized, and the heat energy is still utilized to a great extent. The on-site boiler system often has high-temperature condensed water and exhaust steam, and if the heat energy is recycled, the heat efficiency of the boiler system can be greatly improved, the fuel consumption is reduced, the emission of atmospheric pollutants is reduced, and the boiler system is cleaner and more environment-friendly.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the boiler system for cleanly and efficiently recycling the heat energy, so that the problem of heat energy loss in the boiler system is effectively solved, the heat efficiency of the boiler system is improved, and the fuel consumption is reduced.
The technical scheme is as follows: in order to achieve the purpose, the invention adopts the technical scheme that: a boiler system for clean and efficient recycling of heat energy comprises a combustor, a boiler body, an energy saver, an air preheater, a condenser, a chimney, a fan and a water tank. The boiler body smoke outlet is connected with an economizer, a gas side outlet of the economizer is connected with an air preheater, a gas side outlet of the air preheater is connected with a condenser, a gas side (shell pass) outlet of the condenser is connected with a chimney, the chimney discharges flue gas to the atmosphere, and the air preheater exchanges heat with gas (flue gas) (boiler inlet air); the condenser is a gas-liquid heat exchanger, the gas side of the condenser is a flue gas flow channel, and the liquid side (tube pass) is a heat exchange tube and is connected to a water tank through a pipeline and a circulating pump. The energy saver and the condenser both adopt fin tube structures, hot flue gas flows through the fin tubes, water flows through the fin tubes, the heat transfer between the hot flue gas and the water can be better realized, the temperature of the exhaust gas is reduced to be lower than the dew point temperature of the flue gas, water vapor in the flue gas is condensed into liquid water to release latent heat of vaporization, the fin tubes of the condenser are made of ND steel which is resistant to low-temperature dew point corrosion of sulfuric acid, and the service life of the condenser is effectively prolonged due to excellent acid corrosion resistance and chloride ion corrosion resistance.
A water tank partition board is arranged in the water tank, the water tank is divided into a cold water area and a hot water area by the water tank partition board, an overflow port is formed in the upper end of the water tank partition board, raw water in the cold water area is conveyed to a condenser through a circulating pump, and the raw water returns to the hot water area of the water tank through the condenser; when the water level of the hot water area is high, water flows to the cold water area through the overflow port, the water level is guaranteed to be in a normal range, raw water in the cold water area is conveyed to the condenser through the circulating pump, the raw water returns to the hot water area of the water tank through the condenser, high-temperature condensed water enters the hot water area of the water tank, residual heat in process production is recycled, the temperature of hot water in the water tank is increased, the steam-water heat exchanger is arranged, water in the water tank is conveyed to the steam-water heat exchanger through the water feed pump, the hot water is heated in the steam-water heat exchanger, then. Further, the steam-water heat exchanger mainly comprises a pipe box, a barrel and an outer head cover. The heat exchange tube and the baffle plate are arranged in the cylinder, the hot water outlet tube seat is arranged above the cylinder, the hot water inlet tube seat is arranged below the cylinder, the diameter of the hot water inlet tube seat is the same as that of the hot water outlet tube seat, the cylinder is connected with the tube box and the outer head cover, the joint is sealed by a winding gasket, the exhaust steam inlet tube seat is arranged above the tube box, the exhaust steam outlet tube seat is arranged below the outer head cover, the diameter of the exhaust steam outlet tube seat is smaller than that of the exhaust steam inlet tube seat, exhaust steam generated in the production process enters the steam-water heat exchanger through the exhaust steam inlet tube seat, heat exchange is carried out between the heat exchange tube and water, the water enters the steam-water heat exchanger through the hot water inlet tube seat, heat energy in the.
The high-temperature condensed water enters a hot water area of the water tank, and residual heat in the process production is recycled.
The steam-water heat exchanger increases the temperature of hot water in the water tank.
The heat exchanger is characterized in that an intermediate partition plate is arranged in the air preheater, the intermediate partition plate enables air to perform secondary heat exchange in the air preheater, a fan conveys cold air with a certain air quantity to the air preheater, the air exchanges heat with flue gas of a heat exchange tube in the air preheater and then enters the combustor, the air preheater converts heat energy in the flue gas at the outlet of the economizer into heat energy of the air, the enthalpy value of the air entering the combustor is effectively improved, the lower the temperature of the flue gas at the outlet of the air preheater is, the lower the temperature of the flue gas at the outlet of the air preheater can enable water vapor in the flue gas of the condenser to be condensed into.
Has the advantages that: the boiler system for clean and efficient recovery and utilization of heat energy provided by the invention has the following advantages:
(1) the design of an energy saver, an air preheater and a condenser is adopted, on one hand, the smoke exhaust temperature of the smoke is reduced, the water vapor in the smoke is condensed into liquid water to release latent heat of vaporization, on the other hand, the temperature of the air entering a combustor is increased, the input heat of a boiler is reduced, and the heat efficiency of a boiler system is improved.
(2) The design of the steam-water heat exchanger is adopted, the exhaust steam generated by the production process is effectively utilized to heat hot water, and the baffle plate is arranged in the steam-water heat exchanger to ensure that the hot water repeatedly and uniformly absorbs heat energy in the exhaust steam.
(3) A water tank partition board is arranged in the water tank, the water tank is divided into a cold region and a hot region, high-temperature condensed water enters the hot region to increase the temperature of hot water, and an intermediate partition board is arranged in the air preheater, so that air carries out secondary heat exchange in the air preheater, and the air temperature is greatly increased. The invention can recover the latent heat of vaporization of the water vapor in the flue gas (mainly completed by the condenser), and the utilization of the heat energy can greatly improve the space. The high-temperature condensed water and the exhaust steam of the boiler system can be recovered, the heat efficiency of the boiler system can be greatly improved, and the fuel consumption is reduced.
Drawings
FIG. 1 is a schematic view of a clean and efficient heat recovery boiler system provided by the present invention;
fig. 2 is a schematic structural diagram of the steam-water heat exchanger provided by the invention.
Description of reference numerals:
1-a burner; 2-a boiler body; 3-an energy saver; 4-an air preheater; 5-a middle partition board; 6-a condenser; 7-a chimney; 8-a fan; 9-steam-water heat exchanger; 10-a water tank; 11-tank baffle; 12-high temperature condensation water; 13-a feed pump; 14-a circulation pump; 91-a tube box; 92-a dead steam inlet pipe seat; 93-hot water outlet pipe seat; 94-cylinder body; 95-heat exchange tubes; 96-baffle plate; 97-outer head cover; 98-hot water inlet pipe seat; 99-exhaust steam outlet pipe seat.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, a schematic diagram of a boiler system for clean and efficient recovery and utilization of heat energy is shown in fig. 1, and the boiler system for clean and efficient recovery and utilization of heat energy provided by the invention mainly comprises a burner 1, a boiler body 2, an economizer 3, an air preheater 4, a condenser 6, a chimney 7, a fan 8, a steam-water heat exchanger 9 and a water tank 10. The smoke outlet of the boiler body 2 is connected with an economizer 3, the outlet of the economizer 3 is connected with an air preheater 4, the outlet of the air preheater 4 is connected with a condenser 6, the outlet of the condenser 6 is connected with a chimney 7, and the chimney 7 discharges smoke to the atmosphere. The energy saver 3 and the condenser 6 both adopt fin tube structures, so that heat transfer can be better carried out between hot flue gas and water, the temperature of exhaust gas is reduced to be lower than the dew point temperature of the flue gas, water vapor in the flue gas is condensed into liquid water to release latent heat of vaporization, the fin tubes of the condenser 6 are made of ND steel resistant to sulfuric acid low-temperature dew point corrosion, and the service life of the condenser 6 is effectively prolonged due to excellent acid corrosion resistance and chloride ion corrosion resistance. The energy-saving water boiler is characterized in that a water tank partition plate 11 is arranged inside the water tank 10, the water tank 10 is divided into a cold water area and a hot water area by the water tank partition plate 11, an overflow port is formed in the upper end of the water tank partition plate 11, when the water level of the hot water area is high, water flows to the cold water area through the overflow port, the water level is guaranteed to be in a normal range, raw water in the cold water area is conveyed to the condenser 6 through the circulating pump 14, the raw water returns to the hot water area of the water tank 10 through the condenser 6, high-temperature condensed water 12 enters the hot water area of the water tank 10, residual heat in process production is recycled, the hot water temperature of the water tank 10 is increased, the water in the water tank 10 is conveyed to the steam-water. The heat exchanger is characterized in that an intermediate partition plate 5 is arranged inside the air preheater 4, the intermediate partition plate 5 enables air to perform secondary heat exchange in the air preheater 4, the fan 8 conveys cold air with certain air quantity to the air preheater 4, the air exchanges heat with flue gas of the heat exchange tube inside the air preheater 4 and then enters the combustor 1, the air preheater 4 converts heat energy in flue gas at the outlet of the energy saver 3 into heat energy of the air, the enthalpy value of the air entering the combustor 1 is effectively improved, the lower the temperature of the flue gas at the outlet of the air preheater 4 is, the water vapor in the flue gas of the condenser 6 can be condensed into liquid water to release more latent heat of vaporization, the heat efficiency of a boiler system.
As shown in fig. 2, fig. 2 is a schematic structural diagram of the steam-water heat exchanger provided by the present invention, and as can be seen from fig. 2, the steam-water heat exchanger 9 mainly includes a tube box 91, a cylinder 94 and an outer head cover 97. The heat exchange tube 95 and the baffle plate 96 are arranged in the cylinder 94, the hot water outlet tube seat 93 is arranged above the cylinder 94, the hot water inlet tube seat 98 is arranged below the cylinder 94, the diameter of the hot water inlet tube seat 98 is the same as that of the hot water outlet tube seat 93, the cylinder 94 is connected with the tube box 91 and the outer head cover 97, the connection part is sealed by a winding gasket, the exhaust steam inlet tube seat 92 is arranged above the tube box 91, the exhaust steam outlet tube seat 99 is arranged below the outer head cover 97, the diameter of the exhaust steam outlet tube seat 99 is smaller than that of the exhaust steam inlet tube seat 92, exhaust steam generated in the production process enters the steam-water heat exchanger 9 through the exhaust steam inlet tube seat 92, heat exchange is carried out between the heat exchange tube 95 and water, the water enters the steam-water heat exchanger 9 through the hot water inlet tube seat 98, heat energy in the exhaust.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (5)
1. A boiler system for cleaning and efficiently recycling heat energy is characterized by comprising a combustor, a boiler body, an energy saver, an air preheater, a condenser, a chimney, a fan and a water tank; the smoke outlet of the boiler body is connected with an economizer, the gas side outlet of the economizer is connected with an air preheater, the gas side outlet of the air preheater is connected with a condenser, the gas side outlet of the condenser is connected with a chimney, the chimney discharges smoke to the atmosphere, and the air preheater is a gas heat exchange device; the condenser is a gas-liquid heat exchanger, the gas side of the condenser is a flue gas flow channel, and the liquid side of the condenser is a heat exchange pipeline and is connected to the water tank through a pipeline and a circulating pump; the energy saver and the condenser both adopt fin tube structures, hot flue gas flows through the outside of a fin tube, water flows through the inside of the fin tube, and the material of the condenser fin tube is ND steel resistant to sulfuric acid low-temperature dew point corrosion.
2. The boiler system for recycling heat energy according to claim 1, wherein a tank partition is provided inside the tank, the tank partition divides the tank into a cold water region and a hot water region, an overflow port is provided at an upper end of the tank partition, raw water in the cold water region is delivered to the condenser through the circulation pump, and the raw water is returned to the hot water region of the tank through the condenser.
3. The boiler system for recycling heat energy according to claim 1, wherein the high temperature condensed water is connected to the hot water region of the water tank.
4. The boiler system for recycling heat energy according to claim 1 or 2, wherein a steam-water heat exchanger is provided, water in the water tank is conveyed to the steam-water heat exchanger through a pipeline by a feed pump, and hot water is heated in the steam-water heat exchanger, enters the energy saver and is finally conveyed to the boiler body; the steam-water heat exchanger comprises a pipe box, a barrel and an outer head cover; the heat exchange tube and the baffle plate are arranged in the barrel, a hot water outlet tube seat of the heat exchange tube is arranged above the barrel, a hot water inlet tube seat is arranged below the barrel, the diameter of the hot water inlet tube seat is the same as that of the hot water outlet tube seat, the barrel is connected with the tube box and the outer head cover, the joint is sealed by a winding gasket, an exhaust steam inlet tube seat is arranged above the tube box, an exhaust steam outlet tube seat is arranged below the outer head cover, the diameter of the exhaust steam outlet tube seat is smaller than that of the exhaust steam inlet tube seat, exhaust steam enters the steam-water heat exchanger through the exhaust steam inlet tube seat, heat exchange is carried out between the heat exchange tube and water, the water enters the steam-water heat exchanger through the hot water inlet tube seat, heat.
5. The boiler system for recycling heat energy as claimed in claim 1 or 2, wherein the air preheater is internally provided with a middle partition board, the middle partition board enables air to perform secondary heat exchange in the air preheater, the fan conveys a certain air quantity of cold air to the air preheater, the air exchanges heat with flue gas of the heat exchange tube in the air preheater and then enters the combustor, and the air preheater converts heat energy in the flue gas at the outlet of the economizer into heat energy of the air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011005432.3A CN112032699A (en) | 2020-09-23 | 2020-09-23 | Boiler system for cleaning and efficiently recycling heat energy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011005432.3A CN112032699A (en) | 2020-09-23 | 2020-09-23 | Boiler system for cleaning and efficiently recycling heat energy |
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| CN112032699A true CN112032699A (en) | 2020-12-04 |
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| CN202011005432.3A Pending CN112032699A (en) | 2020-09-23 | 2020-09-23 | Boiler system for cleaning and efficiently recycling heat energy |
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| RU2436011C1 (en) * | 2010-07-01 | 2011-12-10 | Государственное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" | Flue gas heat utilisation device and method of its operation |
| CN102183009A (en) * | 2011-05-13 | 2011-09-14 | 江苏双良锅炉有限公司 | Water supply system of condensing steam boiler |
| CN102607014A (en) * | 2012-03-31 | 2012-07-25 | 河南中烟工业有限责任公司 | Boiler water replenishing system capable of collecting waste heat and condensed water |
| CN103438427A (en) * | 2013-08-09 | 2013-12-11 | 天津诺能达能源科技有限公司 | Gas-fired boiler afterheat recovering system and recovering method |
| CN104990264A (en) * | 2015-08-01 | 2015-10-21 | 湘潭锅炉有限责任公司 | Full-condensation boiler |
| CN205424891U (en) * | 2016-03-15 | 2016-08-03 | 山东钢铁股份有限公司 | Heat recovery unit of oxygen -eliminating device exhaust steam among boiler vapour turbine system |
| CN205746768U (en) * | 2016-05-08 | 2016-11-30 | 广州优硕能源科技有限公司 | Combustion natural gas steam high efficiency boiler energy conserving system |
| CN106524510A (en) * | 2016-10-20 | 2017-03-22 | 天津理工大学 | Boiler flue gas waste heat recycling device |
| CN206346962U (en) * | 2016-12-30 | 2017-07-21 | 安徽海螺川崎工程有限公司 | The jetting case circulatory system |
| CN209431392U (en) * | 2018-10-29 | 2019-09-24 | 天津富斯特压力容器有限公司 | Thermal deaerator waste steam recycling system |
| CN212339199U (en) * | 2020-09-23 | 2021-01-12 | 江苏双良锅炉有限公司 | Boiler system for cleaning and efficiently recycling heat energy |
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