CN1079535A

CN1079535A - Tangential fluidic force driving rotating fluid-mechanical energy conversion device

Info

Publication number: CN1079535A
Application number: CN92104160A
Authority: CN
Inventors: 杜长春
Original assignee: Du Changlu
Current assignee: Du Changlu
Priority date: 1992-06-02
Filing date: 1992-06-02
Publication date: 1993-12-15
Anticipated expiration: 2007-06-02
Also published as: CN1123693C

Abstract

Tangential fluidic force driving rotating fluid energy-mechanical energy conversion device is a kind of device that the pressure of fluid can be converted to mechanical or electrical energy.The present invention is characterized in: device is by an output shaft, the rotor with the output shaft one, two be arranged on epitrochanterian, the parts such as nozzle of jet formation tangentially.Pressure fluid is passage vertically, the radial passage, tangentially oppositely ejection at a high speed of nozzle at last, the jet reaction force formation promotion rotor of high-speed jet and the torque of couple that output shaft rotates together, drive rotor and output shaft and rotate, finish the conversion process of energy that fluid can be converted to mechanical energy.

Description

Tangential fluidic force driving rotating fluid-mechanical energy conversion device

The present invention converts fluid pressure energy the device of mechanical energy to for a kind of, and particularly a kind of peripheric jet flow reaction force that utilizes promotes rotor and the transformation of energy transposition that rotates of the output shaft of one with it.

In existing fluid energy-mechanical energy conversion device, mainly contain static pressure type and dynamic pressure type two big classes.And in the static pressure type energy conversion device, more representative structural type is gear type, blade type and plunger type.Any form no matter, or because the stressed balance that is difficult to everywhere, or because relative movement face and relative movement part number are more, be difficult to reach efficient, inexpensive, reliable, the requirement of the big grade of specific power, especially for high pressure, high temperature, low viscosity fluid such as water, steam, during the application of interior combustion gas etc., situation is all the more so.

At dynamic pressure type fluid energy-mechanical energy conversion device is in the so-called turbomachinery, and the most representative is jet impulse turbine blade formula and reaction turbine blade formula.The common weakness of these two kinds of turbomachineries is complex structure, the manufacture cost height, and volume is big, and leakage loss is big etc., and problem is more outstanding during high pressure.

At this present situation, purpose of the present invention aims to provide a kind of simple in structure, and it is wide to adapt to pressure range, the efficient height, and specific power is big, and cost is low, reliability height, the fluid energy-mechanical energy conversion device of the few and stressed complete equilibrium of relative movement face.

Invention be intended that such realization, rotor middle part at a garden tubular, have the axial passage that high-pressure liquid is imported, two of this channel connections (can certainly not be two, but two are best) extend radially but radial passage that the end is blocked, with each radial passage axis normal or constitute on the direction of certain angle, have one or more, diameter is far smaller than the jet aperture of radial passage, and the direction of the jet aperture on two radial passages is just in time opposite.Like this, when high-pressure liquid after passage enters vertically, flow into two radial passages respectively, again from respect to rotor itself, spraying in the other direction for two tangential jet apertures, jet reaction force by these two jet apertures generations constitutes a torque of couple that promotes rotor edge and the rotation of jet direction opposite direction, drives rotor and output shaft and rotates together.Realization can convert the pressure of fluid to mechanical energy this conversion process of energy.

Under the certain situation of flow, the position that changes the jet aperture just can obtain different rotating speeds and moment, and size by the control jet aperture and number be control system pressure easily just.In addition, because of rotor and output shaft are one and add spiral chute dynamic pressure cod and radial bearing supporting by hydrostatic bearing, but adopt axial clearance auto-compensating structure simultaneously, thereby be expected to obtain very high mechanical efficiency and volumetric efficiency.

Compare with traditional static pressure type and turbine blade dynamic pressure type fluid pressure energy-mechanical energy conversion device, the device that is constituted according to a tree name the present invention has only a movement parts and a flow plane, so structure is very simple, volume is little, and cost is low, the reliable rows height, the efficient height, the life-span is long.Especially for low viscosity fluid such as seawater, fresh water, steam, the application of interior combustion gas equal pressure fluid, its technique effect and economic effect are that existing any fluid motor or turbomachinery are all incomparable.

The present invention is used for hydroelectric example, is provided by accompanying drawing one-accompanying drawing four.

Accompanying drawing one is the structure diagram of the peripheric jet flow power drive-type hydroelectric generator system that constituted according to the present invention.

Accompanying drawing two is the sectional view of A-A section.Accompanying drawing three is the sectional view of B-B section.

Describe the concrete structure of the peripheric jet flow power drive-type hydroelectric generator system that proposes according to the present invention and working principle etc. in detail below in conjunction with accompanying drawing one-accompanying drawing four.

Shown in figure one, rotor (3) fuses with output shaft (3a), is connected with the rotor shaft (5) of generator (14) by shaft coupling (4).Two radial fluid passages (6), (7) both sides of (3) of turning that are placed in, two along the jet nozzle (8) of rotor tangent direction jet and (9) then respectively with radial fluid passages (6), (7) are connected, and see shown in the figure two.

When from dam or other local press water after inlet (I) enters ball support (2) and is provided with the axial bearing disc (1) of spiral grooved bearing, enter epitrochanterian two radial fluid passages (6) respectively through flow face (C), (7), after two nozzles (8), (9) are spouting along opposite tangent direction.Fluid passage (6), (7), after two nozzles (8), (9) are spouting along opposite tangent direction.The reaction force F8 and the F9 that are caused by jet constitute a torque of couple that promotes rotor and output shaft etc. along the direction as shown rotation, output shaft (3a) with the synchronous rotation of rotor (3), drive generator rotor shaft (5) by shaft coupling (4) and ceaselessly rotate, finish the transfer process that the pressure of water can be become electric energy.

For dirt in the anti-sealing enters flow face (C) (also being bearing surface and sealing surface simultaneously), adopt supercharging type or other forms of water pump (10) with the circular groove (d) on high pressure water (its pressure P 2 is higher than the pressure P 1 of ingress (I)) the injection flow face, high pressure water sprays into flow face center along the annulus, prevent that effectively any dirt from entering flow face (C).

The high pressure water that is provided by suction booster (10) enters pressure chamber (j) by axial clearance compensation ring (12) simultaneously, guarantees that cod (11) is pressed on rotor (3) on the axial bearing disc (1) all the time.Between cod (11) and the rotor (3), can adopt and the similar spiral grooved bearing supporting of shape shown in the figure three.

For making the spiral grooved bearing work on the flow face well reach good seal between assurance ball support (2) and the axial bearing disc (1), ring shaped slot (f) (g), (h) all passes to external pressure Pa.

In addition, adopt static pressure and dynamic-pressure bearing to unite supporting between flow face (C) and the rotor.Under normal circumstances, rotor, the vector of making a concerted effort of the weight of parts such as rotor axis of electric and pressure chamber (j) and just in time with flow face (C) on the static pressure institute's balance of making a concerted effort, and change or other factors when causing gap smaller and then may produce the solid contact when axial load, be opened on the flow face (C), it is that axial carrying capacity increases sharply that the hydrodynamic pressure of the spiral chute hydraulic bearing shown in accompanying drawing three just can raise rapidly, force two plane separation to open but remain in the very little interstice coverage, guarantee rotor effectively and always be between the bearing disc axially that Liquid Lubrication Condition is leaked simultaneously and very little.

Because the whole balances of radial load, so that the design of all radial bearings (13) all will become will be very easy.

Obviously, another advantage of this novel electricity generator is, just can obtain different moment, rotating speed etc. by the position of adjustment nozzle and the geometric parameter of jet hole.As long as design is proper, whole system just can be operated in almost without any the state that weares and teares and cavitate.Both made because nozzle weares and teares after long-time running to some extent to be needed to change, operated also very simple.

Too high for preventing system pressure, can consider on radial fluid passages, to be provided with pressure regulator valve (15) and auxiliary nozzle (16), shown in figure two.

Output shaft opposite spin if desired only need be provided with another axial passage (S) and other two radial fluid passages (17) on turning, (18) and another group nozzle (19), and (20) are shown in figure four.But, this moment nozzle (19), the injection direction of (20) is opposite with direction among the figure two, referring to reverse torque of couple F19 and the F20 shown in the figure four.

Point out in passing, basic principle of the present invention also can be used for many other products such as steam-driven generator, internal-combustion engine, the high-speed motor that seawater or fresh water drive, high speed machine processing dynamics head, no torsion pass rod-type oil and mining engineering drill bit, high-speed pneumatic tool, the medical treatment of high-speed small-size Pneumatic dental is bored or the like.

The reference numeral explanation:

1: axial bearing disc, 2: ball support, 3: rotor, 4: shaft coupling,

5: generator rotor shaft, 6,7: radial fluid passages, 8,9: the jet nozzle,

10: suction booster, 11: cod, 12: the axial clearance compensation ring,

13: radial bearing, 14: generator amature, 15: pressure regulator valve, 16: pilot jet,

17,18: counterrotating radial fluid passages, 19,20: the counterrotating nozzle.

Claims

Tangential fluidic force driving rotating fluid energy--mechanical energy conversion device, by a rotor (3), output shaft (3a) with the synchronous rotation of rotor (3), rotate with rotor, nozzle (8) of two (can certainly not be two) tangentially high-speed jets and parts such as (9) constitute, and it is characterized in that:

A, with the rotation synchronously of rotor (3) and output shaft (3a) at least one tangentially or with the nozzle of the certain angle jet of tangential formation, produce thus that tangentially jet reaction force forms a torque of couple or moment promotes rotations such as rotor and output shaft.

B between rotor (3) and the axial bearing disc (1), exists a flow face of motion mutually, and this flow face is again thrust load supporting surface and sealing surface simultaneously.