CN114941860A - High-rotating-speed air friction heating unit - Google Patents
High-rotating-speed air friction heating unit Download PDFInfo
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- CN114941860A CN114941860A CN202210569216.4A CN202210569216A CN114941860A CN 114941860 A CN114941860 A CN 114941860A CN 202210569216 A CN202210569216 A CN 202210569216A CN 114941860 A CN114941860 A CN 114941860A
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- 238000000034 method Methods 0.000 description 3
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- 230000002349 favourable effect Effects 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
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- 238000007789 sealing Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D5/00—Hot-air central heating systems; Exhaust gas central heating systems
- F24D5/02—Hot-air central heating systems; Exhaust gas central heating systems operating with discharge of hot air into the space or area to be heated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a high-rotating-speed air friction heating unit which comprises a gas heating device and an air inlet diffuser; the gas heating device is used for pressurizing and frictionally heating gas to generate high-pressure and high-temperature gas and comprises a shell, wherein a high-rotating-speed motor is arranged in the shell, two output ends of the high-rotating-speed motor are provided with a pressurizing friction heating assembly, the pressurizing friction heating assembly comprises a turbocharging structure and a flow guide friction structure, a turbine air inlet and a turbine air outlet are arranged on the turbocharging structure, a shell air inlet corresponding to the turbine air inlet is arranged at one side of the shell, and the turbine air outlet extends out of the shell; the air inlet diffuser is arranged outside the shell and corresponds to the air inlet of the shell and is used for expanding and depressurizing the backflow gas; the device utilizes air circulation friction heating and pressurization, and thoroughly solves the problems of low heat efficiency of existing media, complex pipeline laying, high failure rate, difficult maintenance and the like.
Description
Technical Field
The invention relates to a high-rotating-speed air friction heating unit.
Background
In winter in northern China, the traditional heating is realized by using a coal-fired boiler, a gas furnace and a centralized coal-fired boiler of a power plant, and the heating is realized by heating water. The method has the advantages of serious air pollution, waste of non-renewable mineral resources, lower energy efficiency conversion rate, complex laying of central heating pipelines, large municipal engineering investment, influence on urban layout and attractiveness, potential safety hazard and serious heat loss waste. And because the medium water circulation that has, still need multistage water pump pressure boost, not only cause the charges of electricity extravagant, moreover because add heat transfer device, equipment is complicated, invests in greatly, simultaneously because of the incrustation scale is serious, the pipeline corrodes seriously, needs often to clear up, and the fault rate is high, and the operation cost is high, and the main line and indoor branch pipeline often appear leaking the phenomenon, and the maintenance is complicated, and the wasting of resources is serious.
Disclosure of Invention
The invention aims to solve the technical problem of providing a high-rotation-speed air friction heating unit which has high heat conversion efficiency, simple pipeline laying, low failure rate, simple maintenance and low cost.
In order to solve the technical problems, the technical scheme of the invention is as follows: high rotational speed air friction heating unit includes:
the gas heating device is used for pressurizing and frictionally heating gas to generate high-pressure and high-temperature gas and comprises a shell, wherein a high-rotating-speed motor is installed in the shell, two output ends of the high-rotating-speed motor are respectively provided with a pressurizing friction heating assembly, the pressurizing friction heating assembly comprises a turbocharging structure which is connected with the high-rotating-speed motor and is used for pressurizing and heating the gas, a flow guide friction structure for frictionally heating the gas is correspondingly arranged in the turbocharging structure, a turbine air inlet and a turbine air outlet are arranged in the turbocharging structure, a shell air inlet corresponding to the turbine air inlet is arranged on one side of the shell, and the turbine air outlet extends out of the shell;
and the air inlet diffuser is arranged outside the casing and corresponds to the air inlet of the casing and is used for expanding and depressurizing the reflowed gas.
As a preferable technical scheme, the turbocharging structure comprises a volute fixed on the high-speed motor, a rotating turbine connected to the output end of the high-speed motor is installed in the volute, and turbine blades are arranged on the periphery of the rotating turbine; the turbine air inlet along the axis direction setting of high rotational speed motor is in the outside of volute, the periphery of volute is provided with annular overstock wind channel, water conservancy diversion friction structure sets up the air intake department in annular overstock wind channel and with the turbine blade cooperation is used for carrying out the frictional heating to the gas of flowing through, the turbine air outlet sets up the tail end in annular overstock wind channel.
As an optimized technical scheme, the flow guide friction structures are flow guide friction blades which are uniformly distributed and fixed on the volute, and the flow guide friction blades are arranged at the air inlet of the annular backlog air duct.
In a preferred technical scheme, the air inlet diffuser is a conical outer expanding cover, and an air outlet of the conical outer expanding cover corresponds to an air inlet of the machine shell.
As the preferred technical scheme, an air inlet filter is correspondingly arranged at the air inlet of the shell.
As the preferred technical scheme, the casing corresponds outward the casing air intake department installs the air inlet and extends the cover, the outer end that the air inlet extends the cover extends to the air outlet of air inlet diffuser.
As a preferred technical scheme, an equipment room and an electric control room are arranged in the machine shell, the gas heating device is arranged in the equipment room, and a controller connected with the gas heating device is arranged in the electric control room.
As a preferable technical scheme, the high-rotation-speed motor is an air suspension permanent magnet motor.
Preferably, the rotating speed of the high-rotating-speed motor is more than or equal to 30000 r/min.
As a preferable technical scheme, a terminal load is connected between the gas heating device and the gas inlet diffuser, and after high-temperature and high-pressure gas generated by the gas heating device enters the terminal load, the gas is subjected to pressure reduction by the gas inlet diffuser and is circulated and returned to the gas heating device.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the invention realizes the purpose of instantly compressing, rubbing and heating air by the air compressed by the ultra-high speed rotating turbine through the specially designed rotating turbine and the air friction volute and by means of the existing mature ultra-high rotating speed air suspension permanent magnet motor technology through the specially designed guide flow friction blades and the annular pressure accumulation air duct. The single electric energy is converted into two energy efficiencies of air heating and air pressurization; the device directly heats and pressurizes air by circulating friction, and thoroughly solves the problems of low heat conversion efficiency of existing media, complex pipeline laying, high failure rate, difficult maintenance and the like.
2. The terminal load of the unit can be heating equipment in the prior art, the heating equipment in the prior art can directly utilize the unit to realize heat supply, the upgrading of the traditional heating equipment is realized, and the unit has the characteristics of simple structure, convenience in assembly, low maintenance cost and the like, and is very favorable for popularization.
3. The unit of the invention adopts the air suspension motor technology and utilizes air as a heat supply medium, gets rid of the traditional heat supply, heating and drying process that the traditional heating equipment can only be converted by a tangible medium, has the characteristics of maintenance free, low noise, high energy efficiency and the like, saves 30-50% of electric energy compared with the traditional motor, and greatly improves and prolongs the service performance and the service life.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a system schematic of an embodiment of the invention;
FIG. 2 is a schematic structural view of a pressurized friction heating assembly according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a pressurized friction heating assembly according to an embodiment of the present invention;
FIG. 4 is a side view of a pressurized friction heating assembly according to an embodiment of the present invention;
in the figure: 1-a machine shell; 2-air inlet of the shell; 3-an air inlet filter; 4, a turbine air inlet; 5-turbine air outlet; 6-high rotation speed motor; 7-a volute; 8-a rotating turbine; 9-turbine blades; 10-guide friction blades; 11-annular pressure accumulation air duct; 12-air outlet pipeline; 14-external expanding cover; 15-air intake extension hood; 16-an equipment room; 17-an electric control chamber; 18-a variable frequency controller; 19-a PLC controller; 20-a circuit breaker; 21-air intake temperature sensor; 22-an air outlet temperature sensor; 23-outlet pressure sensor; 24-motor temperature sensor.
Detailed Description
The invention is further illustrated below with reference to the figures and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. Needless to say, a person skilled in the art realizes that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
As shown in fig. 1, the high-speed air friction heating unit includes a gas heating device and an air inlet diffuser, and a terminal load for heating is connected between the gas heating device and the air inlet diffuser to form a heating system. The gas heating device is used for pressurizing and frictionally heating gas to generate high-pressure and high-temperature gas, and the gas inlet diffuser is used for expanding and depressurizing the refluxed gas; the terminal load is connected between the gas heating device and the gas inlet diffuser, and high-pressure and high-temperature gas generated by the gas heating device enters the terminal load and is decompressed by the gas inlet diffuser and returns to the gas heating device.
Gas heating device includes casing 1, casing 1 is the casing that gives sound insulation, install high rotational speed motor 6 in the casing 1, pressure boost friction heating assembly is installed respectively to high rotational speed motor 6's two outputs, pressure boost friction heating assembly include with high rotational speed motor 6 is connected and is used for carrying out the turbocharging structure that the pressure boost heated to gas, correspond in the turbocharging structure and be provided with the water conservancy diversion friction structure that is used for carrying out the friction heating to gas, be provided with turbine air intake 4 and turbine air outlet 5 in the turbocharging structure, one side of casing 1 be provided with casing air intake 2 that turbine air intake 4 corresponds, casing air intake 2 department corresponds installs air inlet filter 3, turbine air outlet 5 extends to outside the casing 1.
In this embodiment, the rotating speed of the high-speed motor 6 is greater than or equal to 30000r/min, and is used for achieving the operation effect of high rotating speed or ultrahigh rotating speed.
In this embodiment, the high-speed motor 6 is an air suspension permanent magnet motor, and can achieve the purpose of high speed or ultrahigh speed. The left output end and the right output end of the high-speed motor 6 are respectively provided with a pressurizing friction heating assembly, compared with the single side arrangement, the scheme with two sides arranged can obviously improve the air pressurizing and friction heating effects, and the two sides are symmetrical and can be dynamically balanced.
Turbocharging structure is including fixing volute 7 on the high rotational speed motor 6, volute 7 is formed for the aviation cast aluminum casting, install in volute 7 and connect the rotatory turbine 8 of high rotational speed motor 6 output, turbine blade 9 has been arranged to the periphery of rotatory turbine 8, turbine air intake 4 along the axis direction of high rotational speed motor 6 sets up the outside of volute 7, the periphery of volute 7 is provided with annular overstock wind channel 11, be provided with on the annular overstock wind channel 11 with the wind channel intercommunication circumferential weld of turbine air intake 4 intercommunication, water conservancy diversion friction structure sets up wind channel intercommunication circumferential weld department, turbine air outlet 5 sets up the tail end in annular overstock wind channel 11. The two turbine air outlets 5 are guided to be communicated to the terminal load through air outlet pipelines 12.
The guide friction structure comprises guide friction blades 10 which are uniformly distributed and fixed at the position of the air duct communication circular seam. The guide friction blades are obliquely arranged, and when air passes through a gap between every two adjacent guide friction blades, the air can contact the guide friction blades and move along the surfaces of the guide friction blades.
After air enters the volute 7 through the turbine air inlet 4, the rotating turbine 8 rotates at a high speed under the action of the high-speed motor 6, compressing and heating air, then entering the annular accumulated pressure air channel 11 through the air channel communicating annular seam, and when passing through the air channel communicating annular seam, gas can contact the surface of the guide friction blade 10, the air is rubbed with the surface of the guide friction blade 10, the air is forced to change the moving direction and enter the annular accumulated pressure air duct 11 along the guide friction blade 10, the friction heating effect is achieved in the process, meanwhile, as the guide friction blades 10 are arranged in the air duct communicating circular seam, the width of the air duct communicating circular seam is narrower, can ensure that most of gas can contact with the guide friction blade 10 to achieve the friction heating effect, when the gas enters the annular pressure accumulation air duct 11, the gas is finally discharged from the turbine air outlet 5.
The air inlet diffuser is a conical outer diffuser cover 15, and an air outlet of the conical outer diffuser cover 15 corresponds to the air inlet 2 of the machine shell. After the gas returns to the gas inlet diffusion cover 15 from the terminal load, the gas returned to the terminal load still has certain pressure and temperature, so that the supercharging effect is not affected, the pressure of the gas entering the turbocharging structure is reduced, the gas inlet diffusion cover 15 is arranged, the volume of the returned gas with certain temperature and pressure is suddenly increased after the returned gas passes through the gas inlet diffusion cover 15, the air sealing is reduced, the gas pressure is reduced, certain heat can be released, the temperature of the gas circularly returned to the turbocharging structure is higher, and then the gas is continuously heated through the turbine.
The casing 1 corresponds outward casing air intake 2 department installs the air inlet and extends cover 15, the outer end that the air inlet extends cover 15 extends to the air outlet of air inlet diffuser. The air inlet diffuser with pass through between the casing 1 the air inlet extends the cover 15 and connects, and when the gaseous of backward flow was enough, unnecessary gas can extend the gap between the cover 15 and discharge through air inlet diffuser and air inlet, and when the gaseous of backward flow was not enough, under the vortex negative pressure condition, the air can extend the gap entering between the cover 15 through air inlet diffuser and air inlet, then enters into casing air intake 2.
An equipment room 16 and an electric control room 17 are arranged in the machine shell 1, the gas heating device is arranged in the equipment room 16, and a controller connected with the gas heating device is arranged in the electric control room 17. The controller comprises a variable frequency controller 18 and a PLC (programmable logic controller) 19, and a circuit breaker 20 is further installed in the electric control chamber 17.
Still install the sensor in the gas heating device, the sensor includes air inlet temperature sensor 21, air inlet pressure sensor, air outlet temperature sensor 22, air outlet pressure sensor 23 and motor temperature sensor 24, air inlet temperature sensor 21 and air inlet pressure sensor set up turbine air intake 4 departments on volute 7, air outlet temperature sensor 22 and outlet pressure sensor 23 set up in turbine air outlet 5 departments, motor temperature sensor 24 sets up on high rotational speed motor 6's casing, air inlet pressure sensor does not show in the figure.
Terminal load can be for the air cycle heating that original radiator, the water pressure circulation heating of ground heating transformed in places such as residential building, office building, school, hotel, breed big-arch shelter, planting big-arch shelter, also can be for being used for newly-built engineering heating heat supply, aquaculture temperature heating to trade oxygen, industry stoving heating heat supply etc. need the equipment of heating heat supply.
The working principle of the embodiment is as follows:
according to the requirement of setting temperature and pressure in a scene, a PLC (programmable logic controller) 19 is used for acquiring an air inlet temperature sensor 21, an air inlet pressure sensor, an air outlet temperature sensor 22, an air outlet pressure sensor 23, a motor temperature sensor 24 and data, the PLC 19 outputs signals to adjust the output voltage and frequency of a high-efficiency variable frequency controller 18 to control the rotating speed of a high-rotating-speed motor 6, the rotating speed can be controlled at 30000 + 90000r/min, air enters a supercharging friction heating assembly through an air inlet 2 and a turbine air inlet 4 of a shell after being filtered by an air inlet filter 3, enters an annular pressure accumulating air duct 11 after being compressed by the supercharging friction heating assembly and simultaneously performing friction heating on a flow guide friction blade 10, and outputs the highest wind pressure of 100kPa and instantly heats the air to more than 40 ℃ through a turbine air outlet 5 and an air outlet pipeline 12, and the air enters the terminal load to form closed-loop circulation operation, the return air temperature is higher than the ambient temperature, the return air temperature continues to return to the air inlet of the shell through the air inlet diffuser, and the benign circulation outlet air temperature can reach more than 110 ℃, so that the dual energy efficiency working condition requirements of air pressure and air friction heating are met.
The test data of the unit of the invention are shown in the table below, with no load connected during the test.
1. The invention realizes the purpose of instantly compressing, rubbing and heating air by the air compressed by the ultra-high speed rotating turbine through the specially designed rotating turbine and the air rubbing volute and by means of the existing mature ultra-high rotating speed air suspension permanent magnet motor technology through the specially designed guide flow friction blades and the annular accumulated pressure air duct. The single electric energy is converted into two energy efficiencies of air heating and air pressurization. The device directly heats and pressurizes air by circulating friction, and thoroughly solves the problems of low heat conversion efficiency of existing media, complex pipeline laying, high failure rate, difficult maintenance and the like.
2. The terminal load of the unit can be heating equipment in the prior art, the heating equipment in the prior art can directly utilize the unit to realize heat supply, the upgrading of the traditional heating equipment is realized, and the unit has the characteristics of simple structure, convenience in assembly, low maintenance cost and the like, and is very favorable for popularization.
3. The unit of the invention adopts the air suspension motor technology and utilizes air as a heat supply medium, gets rid of the traditional heat supply, heating and drying process that the traditional heating equipment can only be converted by a tangible medium, has the characteristics of maintenance free, low noise, high energy efficiency and the like, saves 30-50% of electric energy compared with the traditional motor, and greatly improves and prolongs the service performance and the service life.
The invention can be widely used for reforming the original radiator and floor heating water pressure circulation heating into air circulation heating in places such as residential buildings, office buildings, schools, hotels, breeding greenhouses, planting greenhouses and the like. And the method can also be used for application scenes of heating and heat supply of newly-built projects, water temperature heating and oxygen exchange of aquaculture, industrial drying, heating and heat supply and the like.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. High rotational speed air friction heating unit, its characterized in that includes:
the gas heating device is used for pressurizing and frictionally heating gas to generate high-pressure and high-temperature gas and comprises a shell, wherein a high-rotating-speed motor is installed in the shell, two output ends of the high-rotating-speed motor are respectively provided with a pressurizing friction heating assembly, the pressurizing friction heating assembly comprises a turbocharging structure which is connected with the high-rotating-speed motor and is used for pressurizing and heating the gas, a flow guide friction structure for frictionally heating the gas is correspondingly arranged in the turbocharging structure, a turbine air inlet and a turbine air outlet are arranged in the turbocharging structure, a shell air inlet corresponding to the turbine air inlet is arranged on one side of the shell, and the turbine air outlet extends out of the shell;
and the air inlet diffuser is arranged outside the casing and corresponds to the air inlet of the casing and is used for expanding and depressurizing the reflowed gas.
2. A high speed air friction heating unit as set forth in claim 1 wherein: the turbocharging structure comprises a volute fixed on the high-rotating-speed motor, a rotating turbine connected to the output end of the high-rotating-speed motor is installed in the volute, and turbine blades are arranged on the periphery of the rotating turbine; the turbine air inlet is arranged on the outer side of the volute along the axis direction of the high-speed motor, an annular accumulated pressure air channel is arranged on the periphery of the volute, an air channel communicating annular seam communicated with the turbine air inlet is arranged on the annular accumulated pressure air channel, the flow guide friction structure is arranged at the air channel communicating annular seam, and the turbine air outlet is arranged at the tail end of the annular accumulated pressure air channel.
3. A high speed air friction heating unit as set forth in claim 2 wherein: the guide friction structure comprises guide friction blades which are uniformly distributed and fixed at the position of the air duct communication circular seam.
4. A high speed air friction heating unit as set forth in claim 1 wherein: the air inlet diffuser is a conical outer expanding cover, and an air outlet of the conical outer expanding cover corresponds to an air inlet of the shell.
5. A high speed air friction heating unit as set forth in claim 1 wherein: an air inlet filter is correspondingly installed at the air inlet of the shell.
6. A high speed air friction heating unit as set forth in claim 1 wherein: the casing corresponds outward casing air inlet department installs the air inlet and extends the cover, the outer end that the air inlet extends the cover extends to the air outlet of diffuser admits air.
7. The high-speed air friction heating unit as set forth in claim 1, wherein: the gas heating device is characterized in that an equipment room and an electric control room are arranged in the machine shell, the gas heating device is arranged in the equipment room, and a controller connected with the gas heating device is arranged in the electric control room.
8. A high speed air friction heating unit as set forth in claim 1 wherein: the rotating speed of the high-rotating-speed motor is more than or equal to 30000 r/min.
9. A high speed air friction heating unit as set forth in claim 1 wherein: the high-rotating-speed motor is an air suspension permanent magnet motor.
10. A high speed air friction heating unit as set forth in any of claims 1 to 9, wherein: and a terminal load is connected between the gas heating device and the gas inlet diffuser, and high-temperature and high-pressure gas generated by the gas heating device enters the terminal load and then is subjected to pressure reduction and circulation by the gas inlet diffuser and returns to the gas heating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210569216.4A CN114941860B (en) | 2022-05-24 | 2022-05-24 | High-rotation-speed air friction heating unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210569216.4A CN114941860B (en) | 2022-05-24 | 2022-05-24 | High-rotation-speed air friction heating unit |
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| CN114941860A true CN114941860A (en) | 2022-08-26 |
| CN114941860B CN114941860B (en) | 2024-10-01 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| US6547153B1 (en) * | 2000-10-26 | 2003-04-15 | Maxie C. Davis | Heating and cooling system using frictional air heating |
| EP1865273A1 (en) * | 2006-06-06 | 2007-12-12 | MGH - Power Tech sprl | Heating process and heater based on the principle of friction of fluids |
| CN102313392A (en) * | 2011-04-15 | 2012-01-11 | 林钧浩 | Pneumatic friction-heat-generation high-temperature air heater |
| CN105890206A (en) * | 2014-10-23 | 2016-08-24 | 重庆奥格美气体有限公司 | Pneumatic gas heating device and gas heating method |
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| CN114941860B (en) | 2024-10-01 |
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