CN201196491Y - Boiler exhaust heat recovery and utilization apparatus - Google Patents
Boiler exhaust heat recovery and utilization apparatus Download PDFInfo
- Publication number
- CN201196491Y CN201196491Y CNU2008200433421U CN200820043342U CN201196491Y CN 201196491 Y CN201196491 Y CN 201196491Y CN U2008200433421 U CNU2008200433421 U CN U2008200433421U CN 200820043342 U CN200820043342 U CN 200820043342U CN 201196491 Y CN201196491 Y CN 201196491Y
- Authority
- CN
- China
- Prior art keywords
- cylindrical shell
- cylinder body
- hot
- tub
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a device for reclaiming and utilizing residual heat in a boiler. The device comprises a cylinder body and a circulating water system; the cylinder body is sequentially provided with a drain valve on the bottom of the cylinder body, a hot water pool arranged below the cylinder body, a smoke gas inlet on the middle lower part of the wall surface of the cylinder body, a water collection box arranged above the cylinder body and a smoke gas outlet on the top of the cylinder body from bottom to top; the inside of the hot water pool is provided with a heat exchange coil pipe; a nozzle is arranged on the water collection box; the water collection box is connected with the hot water pool through the circulating water system which is a water reflux pipe arranged outside the cylinder body; and a set of stop valves and circulating water pumps are arranged on the water reflux pipe. The device has a simple and compact structure and low mounting and maintenance cost, does not need to change the prior boiler structure, can fully utilize the residual heat in smoke gas, has no heated surface of a steel tube, saves tube materials, produces no scale and has long service life.
Description
Technical field
The present invention relates to a kind of heat-exchange apparatus that utilizes boiler afterheat, particularly a kind of residual heat from boiler fume recycle device.
Background technology
China is energy resource consumption big country, and in the wastage in bulk or weight of the national energy, coal accounts for more than 75%, and oil accounts for 17%.And boiler is widely used in industry-by-industries such as power station, industry as topmost thermal energy conversion devices.The thermal efficiency of conventional boiler generally can only reach 80%～85%.How to improve the system thermal efficiency of existing boiler, the energy-conservation of China had great importance.
Boiler is in running, and the flue-gas temperature of its discharge is generally at 120 ℃～250 ℃.Water vapour in the flue gas still is in gaseous state, when discharging body of heater, can take away a large amount of heat energy, this part heat energy is because the grade of energy is lower, generally be difficult to effectively be used, and traditional dividing wall type heat exchanger too greatly also is difficult to adopt on boiler owing to its resistance.
The utility model content
The purpose of this utility model is at the deficiency of the above existing boiler to the flue gas utilization of discharge, a kind of boiler afterheat recycle device that provide simple in structure, cost is low, heat-transfer effect is good, under the prerequisite that does not change existing boiler body, further improve the thermal efficiency of boiler.
The utility model is achieved in that a kind of boiler afterheat recycle device, comprise cylindrical shell and circulation, cylindrical shell is disposed with the blowoff valve of cylindrical shell bottom, the hot-tub of cylindrical shell below, the smoke inlet of cylindrical shell wall middle and lower part, the header tank of cylindrical shell top and the exhanst gas outlet at cylindrical shell top from bottom to top, be provided with heat exchanger coil in the described hot-tub, on the described header tank shower nozzle is installed, connects by circulation between header tank and the hot-tub.
Described circulation is the backflow water pipe that is arranged on the cylindrical shell outside, and the backflow water pipe is provided with one group of stop valve and water circulating pump.
In the described circulation, be provided with filter between hot-tub and the circulating pump.
Described cylindrical shell pars intermedia is that cylindrical, upper end and bottom are conical structure.
Described smoke inlet adopts tangential smoke inlet, and this smoke inlet is arranged on the highest liquid level place of cylindrical shell wall near hot-tub.
Described header tank adopts circulus, and it comprises that circulating line and the pipeline by the center of circle are communicated with composition.
The utlity model has following advantage: because the temperature of boiler smoke has only more than 100 degree centigrade, the coil exchanger heat transfer intensity is low, and the heat exchange effect is relatively poor, therefore at first adopts the direct contact heat transfer mode, make cold water and flue gas directly carry out heat exchange, fully absorb the waste heat in the flue gas; And then the higher characteristics of the heat transfer intensity that utilizes water, adopt the coiled heat exchange mode, not only can make full use of the waste heat in the flue gas, can also reduce discharging pollutants in the flue gas.The utility model is simple and compact for structure, and the installation and maintenance cost is all very low, and does not need to change the structure of existing boiler, and the waste heat in the flue gas is utilized fully, does not have the steel pipe heating surface, saves tubing, scaling not, long service life.
Description of drawings
Fig. 1 is the structural representation of a kind of residual heat from boiler fume recycle device of the utility model.
Fig. 2 is the plan structure schematic diagram of the header tank of a kind of residual heat from boiler fume recycle device of the utility model.
Among the figure: 1-cylindrical shell; 2-header tank; 3-shower nozzle; 4-filter; 5-water circulating pump; 6-water compensating valve; 7-stop valve; 8-heat exchanger coil; 9-hot-tub; 10-sewage draining exit; 11-cooling water inlet; 12-hot water outlet; 13-exhanst gas outlet; 14-smoke inlet; 15-hot water inlet; 16-flue; 17-boiler.
The specific embodiment
Be further described below in conjunction with principle, structure and the course of work of accompanying drawing a kind of residual heat from boiler fume recycle device of the utility model.
A kind of residual heat from boiler fume recycle device, as shown in Figure 1, comprise cylindrical shell 1 and circulation, sewage draining exit 10, sewage draining exit place that cylindrical shell 1 is disposed with the cylindrical shell bottom from bottom to top are provided with the hot-tub 9 of blowoff valve, cylindrical shell below, the smoke inlet 14 of cylindrical shell wall middle and lower part, the header tank 2 of cylindrical shell top and the exhanst gas outlet 13 at cylindrical shell top; The centre of cylindrical shell 1 is a cylindrical segment, and two ends are conical structure up and down.Be provided with heat exchanger coil 8 in the hot-tub 9; Shower nozzle 3 is installed on the header tank 2, connects by circulation between header tank 2 and the hot-tub 9.As shown in Figure 2, header tank 2 is the looped pipeline structure, and the inlet channel by the header tank annulus center of circle is communicated with circular ring pipe, and shower nozzle 3 is installed on the header tank 2, and shower nozzle 3 is installed in the bottom of header tank 2.Be provided with circulation between header tank 2 and hot-tub 9, circulation is made up of one group of stop valve 7, filter 4 and recirculated water 5 pump that are arranged on the cylindrical shell outside.Smoke inlet 14 adopts tangential smoke inlet, and this smoke inlet is arranged on the highest liquid level place of cylindrical shell 1 wall near hot-tub 9.In described hot-tub 9, be provided with heat exchanger coil 8, in the pond, be provided with hot water outlet below the highest liquid level, be connected to the filter 4 that is positioned at outside the cylindrical shell, link to each other with water circulating pump 5 again, be connected to header tank 2 by pipeline at last.
The flue gas that boiler 17 is discharged tangentially enters in the cylindrical shell 1 by flue 16, flue gas rises after entering cylindrical shell 1 twist, carry out the contact heat exchange with the water droplet of ejection in the shower nozzle 3, discharge from the exhanst gas outlet 13 at top then, because flue gas is spiral escalation, under action of centrifugal force, the aqueous water in the flue gas is separated, and flows down along the tube inwall.
Cold water enters in the heat exchanger coil 8 by cooling water inlet 11, water in the shower nozzle 3 is pooled in the hot-tub 9 of device bottom after being heated by flue gas, carry out heat exchange by heat exchanger coil 8 and cold water wherein, heated water flows out by hot water outlet 12, can be directly as boiler feedwater, or be used for the domestic hot-water and wait other purposes.
Water in the hot-tub 9 through with the heat exchange of heat exchanger coil 8 after, flow through stop valve 7 and filter 4 are transported in the header tank 2 by water circulating pump 5, by shower nozzle 3 ejections, form a water-flow circuit again.Because water and flue gas carry out the direct contact type heat exchange, therefore many impurity are wherein arranged, the part that these impurity are big is discharged by blowoff valve 10 through precipitation, and remainder is filtered by filter 4, and two pipe filter parallel connections are convenient to overhaul at any time and clean.Because a part of water is taken away by flue gas, therefore, is provided with the float-ball type liquid level gauge in the device, carries out moisturizing by water compensating valve 6 automatically when water level reduces.
Claims (6)
1. boiler afterheat recycle device, comprise cylindrical shell (1) and circulation, it is characterized in that: cylindrical shell (1) is disposed with the sewage draining exit (10) of cylindrical shell bottom, the hot-tub (9) of cylindrical shell below, the smoke inlet (14) of cylindrical shell wall middle and lower part, the header tank (2) of cylindrical shell (1) top and the exhanst gas outlet (13) at cylindrical shell top from bottom to top, be provided with heat exchanger coil (8) in the described hot-tub, shower nozzle (3) is installed on the described header tank, connects by circulation between header tank (2) and the hot-tub (9).
2. according to the described a kind of boiler afterheat recycle device of claim 1, it is characterized in that: described circulation is the backflow water pipe that is arranged on the cylindrical shell outside, and the backflow water pipe is provided with one group of stop valve (7) and water circulating pump (5).
3. according to claim 1 or 2 described a kind of boiler afterheat recycle devices, it is characterized in that: in the described circulation, be provided with filter (4) between hot-tub (9) and the circulating pump (5).
4. according to the described a kind of boiler afterheat recycle device of claim 1, it is characterized in that: described cylindrical shell (1) pars intermedia is that cylindrical, upper end and bottom are conical structure.
5. according to the described a kind of boiler afterheat recycle device of claim 1, it is characterized in that: described smoke inlet adopts tangential smoke inlet, and this smoke inlet is arranged on the highest liquid level place of cylindrical shell wall near hot-tub (9).
6. according to claim 1 or 2 described a kind of boiler afterheat recycle devices, it is characterized in that: described header tank (2) adopts circulus, and the inlet channel by header tank (2) the annulus center of circle is communicated with circular ring pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200433421U CN201196491Y (en) | 2008-01-25 | 2008-01-25 | Boiler exhaust heat recovery and utilization apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200433421U CN201196491Y (en) | 2008-01-25 | 2008-01-25 | Boiler exhaust heat recovery and utilization apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201196491Y true CN201196491Y (en) | 2009-02-18 |
Family
ID=40416126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200433421U Expired - Fee Related CN201196491Y (en) | 2008-01-25 | 2008-01-25 | Boiler exhaust heat recovery and utilization apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201196491Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012171140A1 (en) * | 2011-06-15 | 2012-12-20 | Liu Tsung-Hsi | Beverage preparation mechanism for preventing scale sediment |
| CN104792008A (en) * | 2014-01-21 | 2015-07-22 | 都傧 | Waste heat circulation heat carrier heater |
| CN104864598A (en) * | 2015-03-30 | 2015-08-26 | 徐进廷 | Condensing hot water boiler |
| CN106123313A (en) * | 2016-06-27 | 2016-11-16 | 无锡锡能锅炉有限公司 | A kind of gas fired-boiler heat transmission equipment |
| CN106705101A (en) * | 2015-08-26 | 2017-05-24 | 盐城市瓯华化学工业有限公司 | Waste heat recovering device for chemical production |
-
2008
- 2008-01-25 CN CNU2008200433421U patent/CN201196491Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012171140A1 (en) * | 2011-06-15 | 2012-12-20 | Liu Tsung-Hsi | Beverage preparation mechanism for preventing scale sediment |
| CN104792008A (en) * | 2014-01-21 | 2015-07-22 | 都傧 | Waste heat circulation heat carrier heater |
| CN104864598A (en) * | 2015-03-30 | 2015-08-26 | 徐进廷 | Condensing hot water boiler |
| CN106705101A (en) * | 2015-08-26 | 2017-05-24 | 盐城市瓯华化学工业有限公司 | Waste heat recovering device for chemical production |
| CN106123313A (en) * | 2016-06-27 | 2016-11-16 | 无锡锡能锅炉有限公司 | A kind of gas fired-boiler heat transmission equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201237453Y (en) | Flue gas waste heat recovery and utilization apparatus of oil-gas combustion boiler | |
| CN201885634U (en) | Automatic cleaning device for plate-type heat exchanger | |
| CN105570956B (en) | A kind of residual heat from boiler fume circulating heat supply system | |
| CN201196491Y (en) | Boiler exhaust heat recovery and utilization apparatus | |
| CN202008227U (en) | Floating coil type boiler smoke waste heat recovery device | |
| CN205137417U (en) | Boiler blow -off waste water heat utilizes device | |
| CN202012904U (en) | Boiler waste heat recovery system | |
| CN203560885U (en) | Continuous blowdown waste heat recovery system used for boiler | |
| CN205245139U (en) | Highly -effective steam generator | |
| CN201093900Y (en) | Compact type two return-stroke flue tube flue gas condensing energy conservation equipment | |
| CN105485915A (en) | Flue gas waste heat recovery device applied to oil and gas fired boiler | |
| CN205299949U (en) | A residual heat from flue gas device for fuel gas boiler | |
| CN207701210U (en) | A kind of jet dynamic control tail gas waste heat utilizing device | |
| CN204285434U (en) | Gas-steam boiler energy saver | |
| CN204535483U (en) | A kind of coiled heat-exchanger rig | |
| CN209295416U (en) | A kind of electric water boiler and the passenger train with the electric water boiler | |
| CN208671135U (en) | Electrical heating system | |
| CN206739262U (en) | Boiler blow-off waste heat recovery device | |
| CN210662805U (en) | Boiler blow-off water comprehensive utilization device of thermal power plant | |
| CN202734631U (en) | Direct feed boil type superconductivity heat collecting tube waste heat recovery device | |
| CN216591667U (en) | Oil field steam injection boiler blowdown water conservation and energy saving recovery separator | |
| CN2783134Y (en) | Energy saving device for steam boiler | |
| CN212511097U (en) | Continuous-exhaust waste heat recycling system for power plant boiler | |
| CN216203272U (en) | Device for heating reverse osmosis inlet water temperature by using continuous sewage discharge of boiler | |
| CN203869318U (en) | Air energy water heater with improved air path system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090218 Termination date: 20140125 |