CN103225584A - Micro mixed flow water turbine for high-rise heat supply system - Google Patents
Micro mixed flow water turbine for high-rise heat supply system Download PDFInfo
- Publication number
- CN103225584A CN103225584A CN2013100869169A CN201310086916A CN103225584A CN 103225584 A CN103225584 A CN 103225584A CN 2013100869169 A CN2013100869169 A CN 2013100869169A CN 201310086916 A CN201310086916 A CN 201310086916A CN 103225584 A CN103225584 A CN 103225584A
- Authority
- CN
- China
- Prior art keywords
- runner
- cover plate
- ring
- turbine
- water turbine
- 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.)
- Granted
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Hydraulic Turbines (AREA)
Abstract
The invention relates to a micro mixed flow water turbine for a high-rise heat supply system, which can convert returning water potential energy into mechanical energy, and has an auxiliary drive effect on a systemic circulation pump. The water turbine has a specific rotary speed ranging from 100 m.kw to 120 m.kw, and is characterized in that a spindle is arranged on a bearing support which is arranged in the middle of the upper side of a cover plate; the lower side of the cover plate is connected with an upper canopy of a water turbine runner; the end part of the cover plate is fixedly connected with a stand ring through a bolt; 17-19 runner blades are uniformly distributed between the upper canopy and a lower ring; one end of the lower ring is connected with a stand ring, and the other end is connected with a conical exhaust water pipe; a metal volute casing is welded on the outer side of the stand ring; and 16-18 single-row ring-form negative curvature guide blades are welded on the stand ring. The micro mixed flow water turbine for the high-rise heat supply system is simple in structure, novel and unique, and the returning water potential energy is used fully, so that the micro mixed flow water turbine has a bright application prospect and enormous economic and social benefits.
Description
Art：
The present invention relates to a kind of middle miniature Francis turbine of specific speed, applied to Heating of High-rise Building system, the potential energy that backwater excess pressure difference is produced is changed into mechanical energy, and is fed back to the water circulating pump of heating system by main shaft, reaches the purpose that energy regenerating is utilized.
Background technology：
With the fast development of Chinese Urbanization, various regions skyscraper is on the increase, especially in the northern area of China, and winter heating is high building project design and the operation management major issue to be considered.Heating system is made up of thermal source, heating agent transmission pipeline and heat dissipation equipment, different by the connected mode of thermal source, can be divided into the heating system for having independent thermal source and height area building is directly connected into the direct-connected heating system of urban heating network.
Normal-pressure boiler heating system is as a kind of open system, and its is safe and reliable to operation, easy for installation, is widely used.But the energy consumption problem in its running is denounced by user always because the circulating pump of system not only to overcome system along journey and parthydraulic loss, also to increase the static lift equivalent to depth of building.Normally run for guarantee system, system return must use resistance control valve door, and expenditure and pressure to 3,4 meters of heads enter normal-pressure boiler and recycled afterwards.Similar to normal-pressure boiler heating system situation, the high area's pipe network of skyscraper is in parallel with low area's pipe network, is directly connected into the heating system of urban heating network.Its water circulating pump will equally increase the static lift equivalent to high area's depth of building, and adjust pressure of return water with resistance control valve door in system return side, to reach the purpose with low area's pipe network balance movement.In both the above heating system, the use of return pipe resistance control valve door not only consumes the potential energy of system return head generation in vain, while also increasing the consumption of electric energy, so running year in year out, energy consumption is larger.
The content of the invention:
The invention provides a kind of miniature Francis turbine, instead of backwater resistance control valve, while reduction pressure of return water, the potential energy produced by backwater overbottom pressure is transformed into mechanical energy, recovery feeds back to system circulation pump, saves the consumption of electric energy.It is efficiently succinct and its is easy to install.
To solve the above problems, the present invention uses following technical scheme：The miniature Francis turbine that Heating System of High Residential Buildings is used, including the metal spiral case of water inlet, seat ring, negative cruvature stator, low-specific-speed turbine runner blade, crown, lower ring, cover plate, bearing block, main shaft, buttress, water-collecting tray, tapered draft tube；Main shaft is arranged on bearing block, bearing block is arranged on the upper middle side part of cover plate, water receiving Turbine Runner crown is bonded on the downside of cover plate, the end of cover plate is bolted to connection seat ring, runner bucket is distributed between crown and lower ring, lower ring one end is connected with seat ring, and the other end is connected with tapered draft tube, the outside welding metal spiral case of seat ring；16 ~ 18 single-row annular negative cruvature stators are welded on seat ring.
The hydraulic turbine specific speed of the present invention is between 100m.KWTo 120m.KWBetween, its runner height B0 and runner water inlet diameter D1 ratio is 0.11 ~ 0.13, and discharge diameter of runner D2 and runner inlet diameter D1 ratio is 0.7 ~ 0.8, and runner bucket number is 17 ~ 19, and its aerofoil profile angle of bend θ is between 55 ° ~ 60 °；The hydraulic turbine negative cruvature guide vane height b0 and runner inlet diameter D1 of the present invention ratio are 0.11 ~ 0.14, and the diameter D3 of stator outlet is 1 ~ 1.15 with the ratio of runner inlet diameter, and vane inlet diameter D4 and runner inlet diameter D1 ratio is 1.2 ~ 1.35.
Micro hydraulic turbine main shaft is connected by the present invention by shaft joint or gearbox with system circulation pump, the hydraulic turbine can select horizontal or vertical mounting means as needed, water inlet pipe is connected with high area's heating system return pipe, water outlet pipeline section is directly connected into urban heating network or the total return pipe of system, the hydraulic turbine is while high-rise pressure of return water is cut down to ensure that heating is stable, it is mechanical energy by backwater potential energy, so as to the rotation of process auxiliary drive circulating pump, the power consumption of motor is reduced, the purpose of wasted energy cycling and reutilization has been reached.In addition, retaining backwater resistance control valve door between the water inlet segment and water outlet pipeline section of the hydraulic turbine, when the hydraulic turbine breaks down, valve is opened, it can be ensured that system stable operation.The present invention is applied to skyscraper normal-pressure boiler heating system and height area direct-connected heating system.
Beneficial effects of the present invention：
Simple in construction, novel and unique of the invention, efficient energy-saving, turbine efficiency is up to more than 87%, it is ensured that the stable operation of heating system, at the same also can as the conservation measures of heating field beneficial practice, have the application prospect of light, economic and social benefit is huge.
Brief description of the drawings：
Fig. 1 is the B-B direction section view result schematic diagram of the hydraulic turbine of the present invention.
Fig. 2 is Fig. 1 A-A to sectional view.
Fig. 3 is the runner bucket schematic diagram of the present invention.
Fig. 4 is that the present invention applies the operation principle schematic diagram in skyscraper height area direct connection heating system.
Fig. 5 is that the present invention applies the operation principle schematic diagram in skyscraper normal-pressure boiler heating system.
In figure：1st, metal spiral case；2nd, seat ring；3rd, cover plate；4th, crown；5th, turbine runner blade；6th, negative cruvature stator；7th, lower ring；8th, bearing block；9th, main shaft；10th, tapered draft tube；11st, miniature Francis turbine；12nd, system circulation pump；13rd, backwater resistance control valve；14th, shaft joint；15th, hydroturbine water intake pipe；16th, hydraulic turbine outlet pipe；17th, high area's heating water return pipe；18th, high area's heating system；19th, the total return pipe of system.
Embodiment：
As illustrated, this miniature Francis turbine, including the metal spiral case 1 of water inlet, seat ring 2, negative cruvature stator 6, turbine runner blade 5, crown 4, lower ring 7, cover plate 3, bearing block 8, main shaft 9, tapered draft tube 10；Metal spiral case 1 is connected with seat ring 2 by welding method, it is fixedly connected on the upside of the other end of seat ring 2 with cover plate 3, downside is bolted to connection with tapered draft tube 10, the rotary wheel of water turbine part is made up of crown 4, runner bucket 5, lower ring 7 and main shaft 9, runner bucket 5 is evenly distributed between runner crown 4 and lower ring 7 by welding method, and torque is transmitted by key between runner crown 4 and main shaft 9.Main shaft 9 is fixed on cover plate 3 by bearing block 8, and 16 ~ 18 single-row annular stators 6 of miniature Francis turbine of the invention are fixed by welding on seat ring 2.
The hydraulic turbine specific speed of the present invention is between 100m.KWTo 120m.KWBetween, its runner inlet height B0 and runner inlet diameter D1 ratio is 0.11 ~ 0.13, and discharge diameter of runner D2 and runner inlet diameter D1 ratio is 0.7 ~ 0.8, and runner bucket is 17 ~ 19, and its aerofoil profile angle of bend θ is between 55 ° ~ 60 °；The height b0 of hydraulic turbine negative cruvature stator 6 and runner inlet diameter D1 of the present invention ratio are 0.11 ~ 0.14, and the diameter D3 that stator 6 is exported is 1 ~ 1.15 with the ratio of runner inlet diameter, and the inlet diameter D4 of stator 6 and runner inlet diameter D1 ratio is 1.2 ~ 1.35.
Illustrate operation principle of the present invention in heating system with reference to Fig. 4 and Fig. 5.
Fig. 4 applies the operation principle schematic diagram in skyscraper height area direct connection heating system for the present invention.The water inlet pipe 15 of the hydraulic turbine 11 of the present invention is connected with the high return pipe 17 of area's heating system 18, and water outlet pipeline section 16 is directly connected into urban heating network；Hydraulic turbine main shaft 9 is connected by shaft joint 14 with system circulation pump 12.When heating system is run, high area's heating water return 17 enters the hydraulic turbine 11 by spiral case 1 of intaking, by seat ring 2, stator 6, reaches runner part, and then promote blade 5 to rotate.Rotating mechanical energy feeds back to circulating pump 12 by main shaft 9, so as to serve process auxiliary drive effect, realizes the purpose for making full use of backwater potential energy, decreases power consumption.Retain backwater resistance control valve door 13 between water inlet pipe 15 and outlet pipe 16 simultaneously, when the hydraulic turbine 11 runs into failure, valve 13 can be opened, it is ensured that heating system stable operation.
Fig. 5 present invention applies the operation principle schematic diagram in skyscraper normal-pressure boiler heating system.The water inlet pipe 15 of the hydraulic turbine 11 of the present invention is connected with the return pipe 17 of high rise building heating system 18, and water outlet pipeline section 16 is directly connected into the total return pipe 19 of system；Hydraulic turbine main shaft 9 is connected by shaft joint 14 with system circulation pump 12.When heating system is run, high area's heating water return 17 enters the hydraulic turbine 11 by spiral case 1 of intaking, by seat ring 2, stator 6, reaches runner part, and then promote blade 5 to rotate.Rotating mechanical energy feeds back to circulating pump 12 by main shaft 9, so as to serve process auxiliary drive effect, realizes the purpose for making full use of backwater potential energy, decreases power consumption.Retain backwater resistance control valve door 13 between water inlet pipe 15 and outlet pipe 16 simultaneously, when the hydraulic turbine 11 runs into failure, valve 13 can be opened, it is ensured that heating system stable operation.
Claims (2)
1. a kind of Heating System of High Residential Buildings is with miniature Francis turbine 11, metal spiral case 1, seat ring 2 including water inlet, negative cruvature stator 6, low-specific-speed turbine runner blade 5, crown 4, lower ring 7, cover plate 3, bearing block 8, main shaft 9, tapered draft tube 10, it is characterised in that：Main shaft 9 is arranged on bearing block 8, bearing block 8 is arranged on the upper middle side part of cover plate 3, the downside of cover plate 3 is bonded water receiving Turbine Runner crown 4, the end of cover plate 3 is bolted to connection seat ring 2, runner bucket 5 is distributed between crown 4 and lower ring 7, one end of lower ring 7 is connected with seat ring 2, and the other end is connected with tapered draft tube 10, the outside welding metal spiral case 1 of seat ring 2；16 ~ 18 single-row annular negative cruvature stators 6 are welded on seat ring 2, specific speed is between 100 m.KW between 120 m.KW, its runner height B0 and runner inlet diameter D1 ratio is 0.11 ~ 0.13, discharge diameter of runner D2 and runner inlet diameter D1 ratio is 0.7 ~ 0.8, the number of runner bucket 5 is 17 ~ 19, and its aerofoil profile angle of bend θ is between 55 ° ~ 60 °；The height b0 of hydraulic turbine negative cruvature stator 6 and runner inlet diameter D1 of the present invention ratio are 0.11 ~ 0.14, and the diameter D3 that stator 6 is exported is 1 ~ 1.15 with the ratio of runner inlet diameter, and the inlet diameter D4 of stator 6 and runner inlet diameter D1 ratio is 1.2 ~ 1.35.
2. Heating System of High Residential Buildings according to claim 1 is with miniature Francis turbine 11, it is characterised in that：Retain backwater resistance control valve door 13 between the water inlet segment 15 and water outlet pipeline section 16 of the hydraulic turbine 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310086916.9A CN103225584B (en) | 2013-03-19 | 2013-03-19 | The miniature Francis turbine of Heating System of High Residential Buildings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310086916.9A CN103225584B (en) | 2013-03-19 | 2013-03-19 | The miniature Francis turbine of Heating System of High Residential Buildings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103225584A true CN103225584A (en) | 2013-07-31 |
| CN103225584B CN103225584B (en) | 2015-09-30 |
Family
ID=48836168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310086916.9A Expired - Fee Related CN103225584B (en) | 2013-03-19 | 2013-03-19 | The miniature Francis turbine of Heating System of High Residential Buildings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103225584B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953491A (en) * | 2013-08-02 | 2014-07-30 | 河海大学 | Direct-drive runoff water turbine for hydrodynamic cooling tower |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62131979A (en) * | 1985-12-02 | 1987-06-15 | Mitsubishi Heavy Ind Ltd | Water turbine |
| CN201145344Y (en) * | 2007-12-25 | 2008-11-05 | 徐立华 | Tall building direct connection heating auxiliary self-drive machine unit |
| CN101555859A (en) * | 2009-05-14 | 2009-10-14 | 河南新飞纪元科技有限公司 | Francis turbine runner with ultra-low specific rotating speed specially used for driving cooling tower fan |
| CN201339532Y (en) * | 2009-01-22 | 2009-11-04 | 河海大学 | Small-sized francis turbine generator |
| WO2010135932A1 (en) * | 2009-05-27 | 2010-12-02 | 南京星飞冷却设备有限公司 | Direct-connection low-speed small mixed-flow hydroturbine for hydrodynamic energy-saving cooling tower |
| CN202073687U (en) * | 2011-05-30 | 2011-12-14 | 辽宁海思达科技发展有限公司 | Special ultralow-specific-speed high-efficiency mixed flow water turbine with water distributor for cooling tower |
-
2013
- 2013-03-19 CN CN201310086916.9A patent/CN103225584B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62131979A (en) * | 1985-12-02 | 1987-06-15 | Mitsubishi Heavy Ind Ltd | Water turbine |
| CN201145344Y (en) * | 2007-12-25 | 2008-11-05 | 徐立华 | Tall building direct connection heating auxiliary self-drive machine unit |
| CN201339532Y (en) * | 2009-01-22 | 2009-11-04 | 河海大学 | Small-sized francis turbine generator |
| CN101555859A (en) * | 2009-05-14 | 2009-10-14 | 河南新飞纪元科技有限公司 | Francis turbine runner with ultra-low specific rotating speed specially used for driving cooling tower fan |
| WO2010135932A1 (en) * | 2009-05-27 | 2010-12-02 | 南京星飞冷却设备有限公司 | Direct-connection low-speed small mixed-flow hydroturbine for hydrodynamic energy-saving cooling tower |
| CN202073687U (en) * | 2011-05-30 | 2011-12-14 | 辽宁海思达科技发展有限公司 | Special ultralow-specific-speed high-efficiency mixed flow water turbine with water distributor for cooling tower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953491A (en) * | 2013-08-02 | 2014-07-30 | 河海大学 | Direct-drive runoff water turbine for hydrodynamic cooling tower |
| CN103953491B (en) * | 2013-08-02 | 2016-02-24 | 河海大学 | A kind of hydrodynamic(al) cooling tower directly drives radial water turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103225584B (en) | 2015-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101560936B (en) | Runner used for direct connection low-speed small-scale mixed-flow turbine of hydrodynamic energy-saving cooling tower | |
| CN101915196B (en) | Double-runner ultra-low specific speed axial flow hydraulic turbine for driving cooling tower fan | |
| CN201540040U (en) | Cooling tower for waterpower fan | |
| CN201714558U (en) | Double-rotating-wheel ultra-low specific rotate speed axial flow hydraulic turbine used for cooling tower fan driving | |
| CN101818715B (en) | Driving hydroturbine device used for cooling tower and cooling tower comprising same | |
| CN206110073U (en) | Multi -functional full through -flow lock chamber pump station | |
| CN201517460U (en) | Transmission water turbine device for a cooling tower and a cooling tower unit including the same | |
| CN103573531A (en) | Ocean current energy power generation type bidirectional impeller of water turbine with flow guide cover | |
| CN202883214U (en) | Novel power-free cooling tower and water turbine | |
| CN202360301U (en) | Power generating device for cooling towers | |
| CN103225584A (en) | Micro mixed flow water turbine for high-rise heat supply system | |
| CN202599140U (en) | Circulating water cooling tower | |
| CN203321845U (en) | Hydrodynamic wind propeller and cooling tower wind power system | |
| CN205783881U (en) | A kind of embedding pipe based on photovoltaic cooperative reinforcing mass transfer coupling composite plane condenser solar water heating system | |
| CN202091206U (en) | Combined type tubular pump device of water outlet structure | |
| CN105066423B (en) | A kind of electromagnetic agitation damp type heating device by wind energy | |
| CN203785523U (en) | Tower charging pipeline flow combination and distribution structure for cooling towers with external water turbines | |
| CN203009146U (en) | Double-shaft type micro-water power generation system | |
| CN201974064U (en) | Cooling tower of water dynamic fan | |
| CN201972829U (en) | Special non-pressure double-nozzle inclined strike type water turbine for cooling tower | |
| CN107313889B (en) | Vertical self-contained conduit type hydroelectric generating group | |
| CN206801759U (en) | A kind of hydropower generating device | |
| CN216975106U (en) | Hydroelectric generation device capable of utilizing water energy of micro water head | |
| TWM592463U (en) | Turbine for cooling water tower | |
| CN201003460Y (en) | Double click type jungle-shaped water turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20180319 |