CN203614428U - Axial-flow fluid pressure machine with spiral blades and turbine - Google Patents
Axial-flow fluid pressure machine with spiral blades and turbine Download PDFInfo
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- CN203614428U CN203614428U CN201320460215.2U CN201320460215U CN203614428U CN 203614428 U CN203614428 U CN 203614428U CN 201320460215 U CN201320460215 U CN 201320460215U CN 203614428 U CN203614428 U CN 203614428U
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- 238000005516 engineering process Methods 0.000 abstract description 6
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- 238000006243 chemical reaction Methods 0.000 description 7
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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
- 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
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Abstract
The utility model relates to an axial-flow fluid pressure machine with spiral blades and a turbine. The front end of the axial-flow fluid pressure machine is a compressor with the spiral blades; the back end of the axial-flow fluid pressure machine is the turbine with spiral blades; a spiral body is formed by an axial body revolving along an axis of the spiral body and at least one spiral blade; each spiral blade is a sheet-shaped object with the height higher than the thickness and fixedly connected with the axial body; the spiral blade spirally winds the axial body; an axial distance of the winding of the spiral blade is at least larger than a screw pitch; a housing accommodates and supports the spiral body and provides the spiral body with revolving freedom; the axial body is winded more than one circle by the internal surface of the housing and two adjacent spiral blades or the blades; space formed by an adjacent part and the external surface of the axial body is a fluid passageway; and a cross section area of the fluid passageway is gradually decreased or increased along a fluid flowing direction. The axial-flow fluid pressure machine with the spiral blade is simply structured with great machining technology and low material requirement, so great economical efficiency is provided; and micromation can be easily achieved.
Description
Technical field:
The utility model relates to a kind of axial flow fluid press machine and turbine with helical blade.Belong to axial flow compressor, blower fan, pump and turbomachinery equipment technical field.For rotating mechanical energy is transformed into fluid pressure energy---blower fan, gas compressor, axial-flow pump, or fluid pressure energy is transformed into rotating mechanical energy---turbine, water turbine, reversible energy conversion device of motor.
Background technique:
In prior art, blade type axial-flow blower or pump are common standard equipment, but generally all use as low pressure and mass flow blower fan or pump, need high rotating speed and multistage blade is set for improving blower fan or delivery side of pump pressure.Axial blade formula motor or turbine, because the moment of torsion that its flow consume produces is greatly lower, generally lack use, also need to arrange multistage blade and move under utmost point high-speed state for improving its energy conversion efficiency.The two is all able to abundant application in gas turbine.
In prior art, screw pump and motor are also conventional standard equipment, but twin-screw, three screw pump application is more general, in fact single screw rod and twin-screw and multi screwpump have very big difference on operation mechanism, and twin-screw and multi screwpump are to belong to positive displacement energy conversion device.Helical rotor pump and motor are applied less in the prior art, and how in for the pressurization of particular fluid medium, to use, and so its action principle is closer to blade type axial-flow pump and motor.Intercept screw pump and motor one section, it just can be regarded as a blade type axial-flow pump or motor, blade type axial-flow pump or motor for specific form that therefore to helical rotor pump and motor, we can look.So this technology is begged the present and is excavated, development.Single screw rod has simple in structure, and member is few, and processing technology and matching requirements are low, security of operation, and without radial effect power, the many advantages such as adapt to run up.Therefore, improving the structure of helical rotor pump and motor and improve its working efficiency, applying it to more wide in range technical field, is must pointing to of development in science and technology.
Model utility content:
For the structure characteristic of helical rotor pump and motor, can make its high speed, high efficiency running as blade type axial-flow pump or the motor, thereby obtain better technical order.First to be changed to the thinner spiral vane with suitable curved surface for the form of single screw rod, for reaching the object of balance, can be designed to multi-head spiral, thereby obtain better technical order.Blade type axial-flow pump or motor need arrange multistage blade for improving its energy conversion efficiency, the continuous morphology for multistage blade that helical blade can be looked herein.For making helical blade fully produce the technique effect of continuous multi-stage blade, must make the sectional area of cavity volume inner fluid runner change with mineralization pressure gradient, set up the pressure gradient field of cavity volume inside, just can greatly improve its energy conversion efficiency.So far we have set up one and be both different from multistage blade axial-flow pump and motor, are not also equal to the method for the brand-new transformation of energy of screw pump isometric(al) formula pump and motor.According to principle and the method for this new transformation of energy, the present invention is proposed---there is axial flow fluid press machine and the turbine of helical blade, also drawn thus its necessary technology condition and structure characteristic simultaneously:
The utility model relates to a kind of axial flow fluid press machine and turbine with helical blade, key component is made up of heliconid and shell, it is characterized in that: described heliconid is by forming according to the rotating axis body of self axis and at least one helical blade, described helical blade is by the board that is highly greater than thickness, be connected and fixed with described axis body and coil and spiral blade along described axis body, the axial distance of its coiling is at least greater than pitch, described shell is one and contains and support described heliconid, make described heliconid there is the housing of revolution degrees of freedom, the described helical blade that described inner surface of outer cover is adjacent with two or described helical blade coil the space being greater than a week and form between adjacent part and described axis body outer surface and are the runner of fluid on described axis body, the sectional area of this fluid course successively decreases or increases progressively along fluid flow line direction, in the time that the sectional area of fluid course successively decreases along fluid flow line direction, its internal pressure gradient increases progressively, it is now the state that is operated in axial flow compressor or pump, and in the time that the sectional area of fluid course increases progressively along fluid flow line direction, its internal pressure gradient is successively decreased, it is now the state that is operated in turbine.Need to illustrate a little: for gas compressor or turbine, regard the helical blade of rotation as static, the relative movement between fluid and helical blade exists aforesaid fluid runner and fluid flow line significantly.For obtaining better energy conversion technique index, there are the extension curved surface and the boundary curve that are different from intermediate portion spiral camber in the one or both ends of described spirochetal described helical blade.
For the sectional area that obtains aforesaid fluid runner is the technique effect that successively decreases or increase progressively along fluid flow line direction, only need order to affect the long-pending parameter alternation of aforesaid fluid cross section of fluid channel, can adopt following four kinds of schemes: listed each scheme can independently be used, also can comprehensively and use.
1. foregoing axial flow fluid press machine and the turbine with helical blade, it is characterized in that: the relative fluid inlet of internal diameter of described shell, during vertically as fluid press, be to successively decrease and be to increase progressively during as turbine, the corresponding internal diameter with shell of external diameter of described helical blade successively decreases vertically and increases progressively.As shown in Figure 1: when as fluid press, axis body (102) rotation under mechanical force drives, drive helical blade (103), fluid is constantly entered from the large end of shell (101), because the diameter of shell (101) shrinks vertically gradually, and make the internal surface of shell (101) and helical blade (103) coiling and sectional area that the space that forms between adjacent part and described axis body (102) outer surface is fluid course successively decreases along fluid flow line direction, compressed or the pressure of fluid increases, form the pressure gradient field increasing progressively continuously, small end at shell (101) obtains larger flow velocity and outlet pressure.In contrast, during as turbine, pressure fluid is entered by the small end of shell (101), and pressure decreased while discharging from large end, its pressure drop is converted into rotating mechanical energy by helical blade (103) and is exported by axis body (102).
2. foregoing axial flow fluid press machine and the turbine with helical blade, it is characterized in that: the relative fluid inlet of diameter of described spirochetal described axis body, during vertically as fluid press, be increase progressively and successively decrease during as turbine, as shown in Figure 2.
3. foregoing axial flow fluid press machine and the turbine with helical blade, is characterized in that: the relative fluid inlet of pitch of described spirochetal described helical blade is successively decrease and increase progressively during as turbine during vertically as fluid press.As shown in Figure 3.
4. foregoing axial flow fluid press machine and the turbine with helical blade, it is characterized in that: the relative fluid inlet of thickness of described spirochetal described helical blade, during vertically as fluid press, be increase progressively and successively decrease during as turbine, as shown in Figure 4.
Axial flow fluid press machine and the turbine with helical blade provided by the utility model, both also non-blade type energy conversion device of on-positive displacement, and have the two feature and technical advantage concurrently, and certainly also need to take into account its technical specifications, especially displacement machine is for the requirement of sealing.Therefore the utility model provides a kind of for having the axial flow fluid press machine of helical blade and the spirality Sealing of turbine simultaneously, and its material can be metal, nonmetal or composite material.It is shaped as spirality and helical blade is suitable, its section is deep trouth U-shaped, can be nested with the edge at helical blade, the seal should be called spirality Sealing, in rotatablely moving, play seal action, stop and reduce by the existence of what pressure gradient by the backflow of the gap generation between aforementioned shell and helical blade outer.As shown in Figure 5, twist, its section is deep trouth U-shaped to seal profile, can be nested with the edge at described helical blade, and seal action is played in the gap between described shell and described helical blade outer, has positioning hole for location on it.Identifier declaration in figure: in figure, e is U-groove bevel, be nested with the edge at helical blade, n is the sealing surface of being close to helical blade one side, c is the potted line of being close to shell, f1 signal Sealing is slightly larger than the internal diameter of this some place shell at the external diameter of this point, under elasticity tension effect, be close to the power of shell, f2 is shown in the centrifugal force of the middle generation that rotatablely moves, the spiral pitch of f3 signal Sealing is slightly less than the elastic restoring force of helical blade pitch, this elastic restoring force will make n face be close to helical blade one side, f4 is the pressure of fluid, because helical blade both sides exist pressure reduction, also make n face be close to helical blade one side to reach the object of sealing.Q is positioning hole, in the time of mechanical movement, each point on potted line c can produce frictional force f7 with contacting of shell, and its direction is the tangent direction in this garden, place week, and f7 can be decomposed into f5 and f6, f5 is perpendicular to the sealing surface of helical blade, favourable sealing, f6 will make Sealing do spirality slippage along helical blade, and therefore positioning hole q is set, be stuck on the protruding point of helical blade relevant position, to realize location.Except location, spirality Sealing one end, can multiple positioning holes be set at suitable position, positioning hole should be the slightly long elongated hole of radial dimension, makes Sealing be close to shell as radial slippage along helical blade and plays seal action.
Accompanying drawing explanation:
Fig. 1 has the axial flow fluid press machine of helical blade and the basic structure sketch of turbine, wherein: the 101st, shell, the 102nd, axis body, the 103rd, helical blade, d represents axis body diameter, D1 represents large footpath, shell one end, D2 represents shell the other end path, and p represents the pitch of helical blade.
Fig. 2 has the axial flow fluid press machine of helical blade and the another kind of structure diagram of turbine, wherein: the 201st, shell, the 202nd, axis body, the 203rd, helical blade, d1 represents axis body one end path, d2 represents the large footpath of the axis body the other end, D represents housing diameter, and p represents the pitch of helical blade.
Fig. 3 has the axial flow fluid press machine of helical blade and another structure diagram of turbine, wherein: the 301st, shell, the 302nd, axis body, the 303rd, helical blade, d represents axis body diameter, D represents housing diameter, p1, p2 represents the pitch that helical blade is different.
Fig. 4 has the axial flow fluid press machine of helical blade and another structure diagram of turbine, wherein: the 401st, shell, the 402nd, axis body, the 403rd, helical blade, d represents axis body diameter, D represents housing diameter, b1, b2 represents the thickness that helical blade is different.
Fig. 5 is a kind of Sealing for helical blade, and wherein e is U-groove bevel, and n is the sealing surface of being close to helical blade one side, and c is the potted line of being close to shell, and q is positioning hole,
Fig. 6 is most preferred embodiment of the present utility model, is gas turbine or an air breathing engine being combined by gas compressor provided by the utility model and turbine.Wherein: the 1st, suction port, the 2nd, the helical blade of gas compressor, the 3rd, gas compressor axis body, the 4th, fuel nozzle, 5 represent flame, the 6th, the pressurized air that gas compressor produces enters the hole of firing chamber, the 7th, high-pressure gas enters the passage of turbine, and the 8th, the axis body of turbine, the 9th, the helical blade of turbine, the 10th, relief opening, the 11st, fuel supplying device, the 12nd, bearing, the 13rd, blower casing, the 14th, the barrier between gas compressor and turbine, the 15th, bearing, the 16th, the shell of turbine
Embodiment:
Most preferred embodiment of the present utility model as shown in Figure 6, gas turbine or an air breathing engine simple in structure, its front end is gas compressor, gas compressor axis body 3 inner spaces are as firing chamber, its rear end is turbine, the axis body 3 of the two and 8 fastening being connected as a single entity, blower casing 13 and also fastening being connected as a single entity of turbine shell 16, be connected axis body by bearing 12 with 15 supportings.Fuel supplying device 11 sprays into firing chamber by fuel through fuel nozzle 4 by being rotatably connected, and light, the combustion gas swollen passage 7 that enters turbine through high-pressure gas of splashing, enters turbine, and turbine rotates and drives gas compressor axis body 3 to rotate, air amount pressurization, high-pressure air enters the combustion-supporting and heated high-pressure gas that forms in firing chamber by hole 6, drives turbine, the circulation of finishing the work, high pressure exhaust gas can make it, as propulsion device, also can pass through axle output mechanical energy from afterbody ejection.Most preferred embodiment contrast prior art of the present utility model shows that its feature of giving prominence to is the most exactly that structure is extremely simple, especially very easily realizes miniaturization, and microminiaturization, makes it to have important use prospect.Technology capability is good simultaneously, lower to the requirement of material, therefore has good Economy.
Claims (3)
1. one kind has axial flow fluid press machine and the turbine of helical blade, mainly formed by heliconid and shell, it is characterized in that: described heliconid is by forming according to the rotating axis body of self axis and at least one helical blade, described helical blade is by the board that is highly greater than thickness, be connected and fixed with described axis body and coil and spiral blade along described axis body, the axial distance of its coiling is at least greater than pitch, described shell is one and contains and support described heliconid, make described heliconid there is the housing of revolution degrees of freedom, the described helical blade that described inner surface of outer cover is adjacent with two or described helical blade coil the space being greater than a week and form between adjacent part and described axis body outer surface and are the runner of fluid on described axis body, the sectional area of this fluid course successively decreases or increases progressively along fluid flow line direction, in the time that the sectional area of fluid course successively decreases along fluid flow line direction, its internal pressure gradient increases progressively, it is now the state that is operated in axial flow compressor or pump, and in the time that the sectional area of fluid course increases progressively along fluid flow line direction, its internal pressure gradient is successively decreased, it is now the state that is operated in turbine, there are the extension curved surface and the boundary curve that are different from intermediate portion spiral camber in the one or both ends of described spirochetal described helical blade.
2. axial flow fluid press machine and the turbine with helical blade according to claim 1, it is characterized in that: the relative fluid inlet of internal diameter of described shell, during vertically as fluid press, be to successively decrease and be to increase progressively during as turbine, the corresponding internal diameter with shell of external diameter of described helical blade successively decreases vertically and increases progressively, the relative fluid inlet of diameter of described spirochetal described axis body is increase progressively and successively decrease during as turbine during vertically as fluid press; The relative fluid inlet of pitch of described spirochetal described helical blade is successively decrease and increase progressively during as turbine during vertically as fluid press; The relative fluid inlet of thickness of described spirochetal described helical blade is increase progressively and successively decrease during as turbine during vertically as fluid press.
3. axial flow fluid press machine and the turbine with helical blade according to claim 1, it is characterized in that: described helical blade disposes spirality Sealing, seal profile twist, its section is deep trouth U shape, can be nested with the edge at described helical blade, seal action is played in gap between described shell and described helical blade outer, on it, have positioning hole for location.
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Cited By (18)
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CN104948473A (en) * | 2015-06-17 | 2015-09-30 | 南京航空航天大学 | Spiral compressor for aviation gas turbine engine |
CN104948496A (en) * | 2015-06-17 | 2015-09-30 | 南京航空航天大学 | Spiral turbine of aviation gas turbine engine |
CN104989584A (en) * | 2015-04-21 | 2015-10-21 | 李德生 | Water-outlet culvert pipe turbine generation system |
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CN105736229A (en) * | 2016-02-02 | 2016-07-06 | 河海大学 | Horizontal-shaft tidal current energy water turbine with horn-spiral-shaped blade |
CN105736230A (en) * | 2016-02-02 | 2016-07-06 | 河海大学 | Horizontal-shaft tidal current energy water turbine with constant-speed spiral blade |
CN105736213A (en) * | 2016-02-02 | 2016-07-06 | 河海大学 | Equiangular spiral water turbine generating power through tidal current energy |
CN107100759A (en) * | 2017-06-19 | 2017-08-29 | 季永宽 | Circulate punching engine |
CN109139539A (en) * | 2017-06-28 | 2019-01-04 | 天津手拉手新能源科技有限公司 | A kind of spiral shell cup |
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Granted publication date: 20140528 Termination date: 20160731 |