CN104653382A

CN104653382A - Opening type blade water turbine

Info

Publication number: CN104653382A
Application number: CN201310600527.3A
Authority: CN
Inventors: 刘运武
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-25
Filing date: 2013-11-25
Publication date: 2015-05-27

Abstract

The invention discloses an opening type blade water turbine. The opening type blade water turbine can save energy and power, is light in weight and can form power through thrust of water flow as well as select power to pump power or promote gas flowing. The technical scheme of the opening type blade water turbine is characterized in that the outer circumference of the same roller is provided with a plurality of longitudinal arc blades at equal intervals, which are slidingly matched with the roller and can transversely rotate at a certain angle; the top ends of both sides of the outer edge of every blade on the circumference of the same roller are arranged inside the same eccentric closed static ring-shaped track, and under restriction of the eccentric ring-shaped track, and the distance between the outer edges of the blades in operation and a rotary center changes from far to near and then from near to far; when in a far position, the blades are expanded to receiving thrust of water or sucking water in, and when in a near position, the blades are contracted to exhaust water or gas and to reduce operating resistance and backflow of water and gas, so that energy and labor saving can be achieved.

Description

Open-close type blade hydraulic turbine

Technical field

The present invention relates to the water formed in flowing by water and can be used for indirect drive parts of drive machines, be more definitely more specifically just used to the water turbine driving generator or other machines.

Background technique

Hydroelectric power is that the mankind transform nature, and utilizing the most successful model of nature, is inexhaustible, nexhaustible Renewable green energy.Water turbine is the mobile handling machinery using water as medium, it is prime mover of hydroelectric power plant's drive electrical generators, the Economy of hydraulic turbine operation and Security directly affect the economic benefit of hydroelectric power plant, have mixed-flow, axial flow, diagonal flow type, tubular and water bucket type etc. multiple according to the difference of its structure of water turbine.Along main shaft radial direction before the current of Francis turbine enter runner, change into oblique in runner, finally flow out runner along main-shaft axis direction, while current rotate in runner, also carry out radial motion and axial motion, so be called " mixed-flow ", with acting principle, its structure is shown in that (arrow represents current route to Fig. 1, center for main shaft, blades installation in main shaft surrounding, Hereinafter the same); The current of axial flow hydraulic turbine are before entering runner, 90 ° of angles are turned over, current enter runner along main-shaft axis direction, runner is flowed out again along main-shaft axis direction, current rotate and axial motion in runner simultaneously, do not have radial motion, so be called axial flow, its structure and acting principle are as shown in Figure 2; Water movement in its runner of inclined flow turbine is the same with francis turbine runner, and runner bucket and axial flow are substantially identical, and its performance has drawn the advantage of above-mentioned two kinds of water turbine, but Structure and energy requires more complicated, as shown in Figure 3; Water movement in the rotaring wheel structure of tubular turbine and runner is the same with axial flow safety, institute's difference is that the current of tubular turbine are almost parallel with main-shaft axis through all the time to outflow water turbine from entering water turbine, " tubular " title is come therefrom, and its structure shape and acting principle are as shown in Figure 4; Its water flow path nozzle of Pelton wheel forms high-speed jet, and jet urgees its rotation along the tangent direction impact runner bucket leaf of runner plane of rotation, so be also called " cutting the formula of hitting " water turbine, its structure and acting principle are as shown in Figures 5 and 6.

So far, no matter be any water turbine, be all connect and spindle operation to promote its impeller (runner) by means of the flowing of water, main shaft on-stream directly or indirectly (being transmitted wheel by main) drives generator or other machines running.Because its size on-stream of the blade on runner can not change because of sizing already, in every fortune circles, each point of its outer rim contour 360 ° is equal with rotating center distance, for Pelton wheel, by water jet propulsion side down, relative side up, a side weight is up more and distance rotating center formed resistance far away is also corresponding larger, otherwise less, and resistance stool means big energy-consuming; Water turbine in addition in traditional method is heavier, and its runner of the Francis turbine φ installed as the three gorges hydropower plant is 9.832m and 10.416m two kinds, and water turbine quality is respectively 3200t and 3323t, thus manufacture cost is slightly high; Also have on-stream when generator open circuit trip removal of load time water turbine running resistance is declined instantaneously, its rotating speed rises to a limiting value, rotating speed is higher, current are also larger with the chance of blade rotary, run up be called unit there occurs fly ease, it is a signal of danger close that unit flies to escape, because the centrifugal force of rotatable parts is directly proportional to rotating speed square, and that is generating unit speed

Rise to original twice, then the centrifugal force of transmission part increases to original four times, and powerful centrifugal force threatens greatly by forming the mechanical strength of generator amature.

Summary of the invention

The present invention, for separating above-mentioned deficiency, aims to provide a kind of energy saving, lighter in weight, operational security, it can be made to operate by the thrust of water, also can employ in drawing water or impelling a kind of multifunctional water turbine of gas flow or claim suction pump by powered belt, be achieved by the following technical solutions.

On the outer rim contour of same roller with equidistant installation some pieces of longitudinal directions (at a right angle with roller section) arc plate as blade, each plate leaf and roller get final product horizontal turn several angle for being slidably matched, the both sides, some blade tops of same roller outer rim contour are all placed in same bias and actionless ring track, arc tabular blade in running is subject to the restriction of track, impel to come directly towards outside blade fortune circle middle distance rotating center by as far as near again from the near to the remote, distance rotating center role far away is acting, namely the thrust of current is accepted, current are active blade is passive rotation, distance rotating center is closely the resistance in order to reduce running, can be far more than near twice.When being driven by power, distance rotating center role far away increases intake and discharge capacity, and distance rotating center closely can reduce the backflow of medium (water or air), and no matter being far away or near, is all in order to lift-off efficiency.

For alleviating the friction of top and two side rails outside its blade in running; and each travelling wheel is installed respectively in the both sides, top, outside of each block blade; it is barrel shift that travelling wheel does annular slippage in orbit; the wheel of travelling wheel is combined by the bearing (before dispatching from the factory charging-up lubricant oil) of bi-side with closure and overcoat; its side opened wide of overcoat adds water seal, for the protection of bearing from water logging.Each blade inner edge is so that the equidistant outer rim contour being arranged on same roller to be similarly bearing structure to rotate, roller and blade joint are more than two, left and right point or two points in length, its blade radian slightly larger than roller external profile diameter, namely so that standard (now come directly towards outside blade apart from rotating center be nearest) can be fitted into adjacent upper and lower blade during on-stream closing up.

The present invention and open-close type blade hydraulic turbine both can be used for accepting the thrust of current by paperback, and also can be symmetrical or laterally zygomorphic two dresses, namely current pass through from the same inner side of two water turbine.The rotating shaft at each blade and track and roller and roller center is all arranged in the pipeline of flowing water for being sealed shape, and by the blade launched, passage is cut off, if blade does not rotate current just not by stopping state for quiet, when blade constantly rotates, water is passed conveying forward, make it not reflux, thereby reduce power consumption.

In sum, technological scheme selected by the present invention be on the outer rim contour of same roller with equidistant installation some pieces of longitudinal arrangements and roller transverse section edge week arc shaped blade at a right angle, namely connection that is nearest and roller can transverse rotation several angle for being slidably matched with rotating center for each blade inner edge; After the outside of each blade and mounted blade, distance rotating center top, two ends, one side is farthest separately installed with that travelling wheel is affixed in running with eccentric ring track Inner side is barrel shift; This water turbine is except central rotating shaft two or wherein all the other each parts are all located in pipeline except one is closed shape, and by the blade trailed by logical for pipe isolation disconnection.

Beneficial effect of the present invention is: one is energy and labour saving; More far more easily be pushed according to the outer back gauge rotating center of lever principle blade, namely the blade accepted in thrust is easier to rotate from becoming recently farthest for launching its outer back gauge rotating center of shape, and after finishing merit, distance rotating center reduces resistance from becoming farthest recently.Cut off logical for water flow passage when mounted blade puts in place, realize the waste of having stopped water energy thus; Two is possess to be operated by water jet propulsion drive electrical generators or other machines and employed by powered belt in drawing water or impelling the several functions of gas flow; Three be by the restriction of pipeline and flow channel section limited and very difficult on-stream fly anecdote therefore; Also have because roller center is the empty and superiority such as lighter in weight and low cost of manufacture.

Accompanying drawing explanation

Fig. 1 to Fig. 5 is its structure of several water turbine the most conventional in traditional method and prior art and acting principle schematic;

Fig. 6 is its blade wheel structure solid show enlarged view of Pelton wheel in Fig. 5;

Fig. 7 and Fig. 8 is that its structure of the present invention shows figure with acting principle;

Fig. 9 is that two the right horizontally installations of open-close type blade hydraulic turbine one the first from left accept the hydro-flow thrust exploded view in same vertical pipe.

Embodiment

Below in conjunction with accompanying drawing, do just further instruction.

With reference to Fig. 7 and Fig. 8, the Component such as the blade 3 that open-close type blade hydraulic turbine is arc by roller 1 and roller central shaft 2 and section and travelling wheel 6 are formed, each blade is arranged in its two each bearing of outer rim contour of roller 1 and bearing support 7 rotatable by two following minor axis 8 break-through, outside blade, two is separately installed with travelling wheel 6 and is affixed with eccentric ring track 4, and the current in pipeline 5 press the direction flowing of arrow 9.Its acting principle is: water promotes blade 3 company in flowing and roller 1 rotates along arrow 10 direction with central rotating shaft 2, due to the existence of eccentric ring track 4, promote blade often fortune circle in close up recovery again by being brought together into expansion, the centrifugal force formed in fast turn-around impels each travelling wheel 6 in two outside blade 3 to be close to track 4, launch by track restriction and close up, launch the thrust accepting current, closing up role one is discharged by the current be trapped between adjacent two blades, two is the backflows reducing water, and three is to reduce the resistance in running.

With reference to Fig. 9, two open-close type blade hydraulic turbines divide left and right to install with symmetric type, single head two track 4 inner edge reclines each other, current in passage 5 surmount inside two water turbine of left and right along arrow 9 from top to bottom, current are active blade 3 for passive company and roller 1 and roller central rotating shaft 2 rotate along arrow 10, one, two water turbine in left and right is left-handed one is dextrorotation, and the blade in running launches and close up repetitive cycling to carry out by the restriction of track 4.

When water turbine is driven by power, need only stretch out at its single head of rotating shaft 2 or double end and length that namely passage 5 expose outside install drive wheel (not shown) and involve fit by belt or chain and power engine drive wheel, just can realize blade for initiatively, the medium such as current or gas is passive, its acting principle is constant.

Claims

1. an open-close type blade hydraulic turbine, edge Zhou Ruogan blade is arranged on the outer rim contour of same roller with equidistant, it is characterized in that section is that its Inner limit of blade of arcuation and the connection of roller can along roller contour transverse rotation several angles for being slidably matched, outside each blade, top, two ends is affixed with eccentric ring track respectively.

2. a kind of open-close type blade hydraulic turbine according to claim 1, it is characterized in that outside each block blade that top, two ends is provided with in travelling wheel and the running bonded to each other of eccentric ring track Inner side is barrel shift.

3. a kind of open-close type blade hydraulic turbine according to claim 1, it is characterized in that except central rotating shaft two or wherein one stretch out pipeline for except exposing, all the other each parts are all located in pipeline and are sealed by concealed, and pipeline isolation are disconnected by the blade trailed.