Turbine with high efficiency

 

(57) Abstract:

The turbine is designed to produce mechanical energy of a rotating shaft. The device has installed in the suction pipe impeller in the form of a shaft, one end of which is fixed to the blade, and the other end connected to the drive shaft. Under the blades of the impeller installed plate, at least one fixed on the draft tube wall. Axle mounting plate perpendicular to the axis of rotation of the impeller shaft and is oriented along the radius of the suction pipe. The plane of the plate is at an angle to the radial plane of the cross section of the suction pipe, which is located in the axle mounting plate. This plate can be installed with the possibility of changing the angle between its plane and the above-mentioned radial plane of the cross section of the suction pipe. The axis of the mounting plates can be located either in the same or in different radial planes of the cross-section of the suction pipe. The device is designed to increase efficiency. 5 C.p. f-crystals, 6 ill.

The invention relates to a hydroelectric power and can be used in the construction of hydro - and aeroturbine.

One of the important tasks when designing energy of a rotating shaft.

Known transverse hydraulic turbine, containing the axle with rigidly mounted along the profiled blades, and the end disks of the impeller /1/.

In this device, the increased efficiency is achieved due to the additional torque generated part of the stream passing through slots in the end walls.

However, this device cannot be used in existing types of turbines on existing hydro and euroelectrotech.

Also known turbine /2/ containing a conduit, which houses the impeller in the form of a shaft with blades mounted on one end of the shaft, the other end of which is connected with the drive shaft.

Known turbine does not provide a high efficiency, because not all of the flowing stream of water has time to interact with the blades of the impeller and therefore not all of the energy of the flow is converted into rotational energy of the shaft.

The technical purpose of this invention is to increase the turbine efficiency by providing a more complete conversion of the energy of water flow into the energy of the rotating turbine.

The problem is solved by the device, which contains the set of suction Truvada, in which, according to the invention, under the blades of the impeller is set plate attached to the wall of the suction pipe, and the axle mounting plate perpendicular to the axis of rotation of the impeller shaft and is oriented along the radius of the suction pipe and the plane of the plate is at an angle to the radial plane of the cross section of the suction pipe, which is located in the axle mounting plate. This plate can be installed with the possibility of changing the angle between its plane and the above-mentioned radial plane of the cross section of the suction pipe. The device can be introduced additional plate installed under the blades of the impeller and mounted on the wall of the suction pipe, the axis of attachment of each additional plate perpendicular to the axis of rotation of the impeller shaft and oriented respectively along the radius of the suction pipe, with the plane of each additional plate is at an angle to the radial plane of the cross section of the suction pipe, which is located in the axle mounting plate. Each additional plates can be installed with the possibility of changing the angle between its plane and the corresponding radial plane is located either in the same, or in different radial planes of the cross-section of the suction pipe.

The presence of at least one radial plate mounted directly behind the blades of the impeller and mounted on the wall of the suction pipe, allows the use of the flow that passes through the impeller, as an additional "dynamic" support thread, one end of which rests in a radial plate, and the other in the turbine blades, thereby providing a more complete transformation of the energy of water flow to the power turbine shaft. The presence of several plates that are installed over the blades of the impeller, allows you to use the device in conditions of high capacity flow. Install the plates with the possibility of changing the angle between their planes and radial plane gives the possibility to adjust the device in order to obtain maximum efficiency at various levels of work capacity of the stream.

In Fig. 1 shows the design of the turbine with one plate of Fig. 2 - section a-a in Fig. 1; Fig. 3 - design of turbines with multiple plates, the axis of the fasteners which are located in the same radial plane of the cross section of the suction pipe; Fig. 4 is a section along B-B in Fig. 3; Fig. 5 - kousei pipe; in Fig. 6 - section b-b In Fig. 5.

Turbine (Fig. 1) contains installed in the suction pipe 1 impeller in the form of a shaft 2, one end of which is fixed to the blade 3 and the other end connected with the shaft 4 of the actuator 5, under the blades 3 of the impeller is set plate 6, secured to the wall of the suction pipe 1, and the axle mounting plate 6, perpendicular to the axis of rotation of the shaft 2 of the impeller and is oriented along the radius of the suction pipe 1 and the plane of the plate 6 is located at an angle to the radial plane of the cross section of the suction pipe 1, in which lies the axis of the mounting plate 1, moreover, this angle can be changed by rotation of the plate 1 around the axis of the fastening.

The device may contain additional plate 7 (Fig. 3) installed under the blades 3 of the impeller and mounted on the wall of the suction pipe 1, while the axis of attachment of each of the additional plates 7, perpendicular to the axis of rotation of the impeller shaft and oriented respectively along the radius of the suction pipe, with the plane of each additional plate 7 is located at an angle to the radial plane of the cross section of the suction pipe, which is located in the axle mounting plate. E is Astin 6 and 7 perpendicular to the axis of rotation of the shaft 2 of the impeller, can be located either in one (Fig. 3) or in different radial planes (Fig. 5).

The dimensions of the plates 6, 7 form, profile and their number are chosen experimentally based on specific operating conditions of the turbine - power, flow rate, size of the suction pipe 1, and so on, to ensure maximize efficiency.

The device operates as follows.

The water flow impinges on the blades 3 of the impeller, causing them to rotate together with the shaft 2, through which rotation is transmitted to the shaft 4 of the actuator 5. Part of the flow, proteinopathy with blades 3 of the impeller, and the other part that did not appear on the blade 3, fall on the plates 6, 7 which help to use this thread as a "dynamic support" thread. One end of this "support" as it rests on plates 6, 7, and the other in the blades 3 of the impeller, thereby further affecting the blades 3 and increasing the speed of their rotation.

The angle of rotation of the planes of the plates 6, 7 around their axes mounting perpendicular to the axis of rotation of the shaft 2, is selected depending on the power flow of water, for example, when using a turbine on the river during the period of reduced water levels, angle plates 6, the 6, with increasing water level, i.e. the increase in the power flow, this angle increases.

Sources of information:

1. USSR author's certificate N 159468, F 03 B 17/00, 1962.

2. USSR author's certificate N 1222881, F 03 B 3/04, 1984.

1. Turbine containing installed in the suction pipe impeller in the form of a shaft, one end of which is fixed to the blade, and the other end connected to the drive shaft, characterized in that under the blades of the impeller is set plate attached to the wall of the suction pipe, and the axle mounting plate perpendicular to the axis of rotation of the impeller shaft and is oriented along the radius of the suction pipe and the plane of the plate is at an angle to the radial plane of the cross section of the suction pipe, which is located in the axle mounting plate.

2. Turbine under item 1, characterized in that the plate is installed with the possibility of changing the angle between its plane and the radial plane of the cross section of the suction pipe, which is located in the axle mounting plate.

3. Turbine under item 1, characterized in that the additional plate installed under the blades of the impeller and mounted on the wall of the suction ESA and focused on the corresponding radius of the suction pipe, when this plane each additional plate is at an angle to the radial plane of the cross section of the suction pipe, in which lies the axis of the corresponding mounting plate.

4. Turbine under item 3, characterized in that each of the additional plates are installed with the possibility of changing the angle between its plane and the corresponding radial plane of the cross section of the suction pipe, which is located in the axle mounting plate.

5. Turbine under item 3, characterized in that the axis of the fastening plates are located in the same radial plane of the cross section of the suction pipe.

6. Turbine under item 3, characterized in that the axis of the fastening plates are located in different radial planes of the cross-section of the suction pipe.

 

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