CN211230686U - Hydroelectric power generation turbine device - Google Patents
Hydroelectric power generation turbine device Download PDFInfo
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- CN211230686U CN211230686U CN201920603233.9U CN201920603233U CN211230686U CN 211230686 U CN211230686 U CN 211230686U CN 201920603233 U CN201920603233 U CN 201920603233U CN 211230686 U CN211230686 U CN 211230686U
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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 provides a hydroelectric turbine device, which comprises a water press, a mechanical transmission device, a water turbine and a turbine device, wherein the water press is arranged at the upstream of a river channel with a water level difference, the water turbine is arranged at the downstream of the river channel, and the turbine device is arranged at the downstream of the river channel; the turbine device is connected with the mechanical transmission device, and the mechanical transmission device is connected with the water press; the utility model improves the energy utilization efficiency of the hydropower station, and the water level difference between the upstream and the downstream is lower for the specified power output, so that the material and the cost are saved for constructing the hydropower station; or, the same water level difference can ensure better power generation effect of the hydropower station.
Description
Technical Field
The utility model belongs to the technical field of hydroelectric power generation, in particular to hydroelectric power generation turbine device.
Background
The basic principle of hydroelectric generation is to utilize the water level difference to generate electric power by matching with a hydraulic generator, namely, the potential energy of water is converted into the mechanical energy of a water wheel, and then the mechanical energy is used for driving the generator to obtain the electric power. Has the characteristics of low price and no pollution.
At present, the conventional hydroelectric power generation process comprises the following steps: the water in the river is captured by the water blocking facility and then sent to the power plant through the pressure tunnel, the pressure steel pipe and other water path facilities, when the unit needs to run for power generation, the main valve is opened, the guide wing is opened, the water strikes the water turbine, the water turbine rotates to drive the generator to rotate, the generator establishes voltage after excitation is added, and the generator starts to send power to the power system after the breaker is put into operation. If the output of the generator set is adjusted, the opening of the guide wings can be adjusted to increase or decrease the water volume, and the generated water returns to the river channel through the tail water channel and is supplied to downstream water for use.
For some medium and small hydropower stations, the medium and small hydropower stations are positioned in a river section with small water level drop upstream and downstream, the pressurizing effect of a pressure water channel is poor, so that the small hydropower stations have low power generation efficiency, the early investment is difficult to recover, and the energy contained in the river is wasted. For hydroelectric power generation, the most effective mode is to increase the water level difference between the upstream and the downstream, a large hydropower station generally adopts a mode of establishing a water storage reservoir at the upstream to increase the water level, and a medium-sized and small-sized power station cannot establish the large reservoir due to condition limitation, so other methods are adopted.
According to the physical principle, the water turbine is driven to rotate mainly by the kinetic energy of water, which is derived from the gravitational potential energy of high-water-level stored water at the upstream of the hydropower station, so that the high water level can be equivalent to the flow velocity of water when the water flow impacts the water turbine. Also, increasing the flow rate of water is therefore equivalent to increasing the water level upstream of the hydroelectric power station.
Disclosure of Invention
An object of the utility model is to provide a hydroelectric turbine device has solved current hydroelectric system, and is little because of the upstream and downstream water level drop, leads to the problem that generating efficiency is low.
In order to achieve the above purpose, the utility model discloses a technical scheme is:
the utility model provides a hydroelectric turbine device, which comprises a water press, a mechanical transmission device, a water turbine and a turbine device, wherein the water press is arranged at the upstream of a river channel with a water level difference, the water turbine is arranged at the downstream of the river channel, and the turbine device is arranged at the downstream of the river channel; the turbine device is connected with the mechanical transmission device, and the mechanical transmission device is connected with the water press machine.
Preferably, the turbine device comprises a first rotating shaft, a first blade and a first gear, wherein the first blade and the first gear are respectively sleeved at two ends of the first rotating shaft; the first gear is connected with the mechanical transmission device.
Preferably, the mechanical transmission device comprises three groups of gear sets, namely a first gear set, a second gear set and a third gear set, wherein the first gear set is connected with the turbine device, the second gear set is in meshed connection with the third gear set through the second gear set, and the third gear set is connected with the water pressing machine.
Preferably, the first gear set, the second gear set and the third gear set have the same structure and respectively comprise a transmission shaft, a second gear and a third gear, wherein the second gear and the third gear are respectively sleeved at two ends of the transmission shaft.
Preferably, the water press comprises a second rotating shaft, a fourth gear and a second blade, wherein the second blade and the fourth gear are respectively sleeved at two ends of the second rotating shaft, and the fourth gear is connected with the mechanical transmission device.
Preferably, the turbine device further comprises a control system, wherein the control system comprises a PLC (programmable logic controller) and a flow sensor, the flow sensor is connected with the PLC, and the PLC is in control connection with the turbine device.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a pair of hydroelectric turbine device utilizes the mechanical energy in "waste water" that can not reuse to do work behind the hydraulic turbine of flowing through, promotes the turbine among the turbine device, and the turbine drives the pressurized-water machine through mechanical transmission again, and in the faster suction pressure water course of water on the upper reaches, the pressurized-water machine has improved the velocity of flow of water, and this has improved the flow in other words. A greater flow through the turbine means a higher output of the turbine; the utility model improves the energy utilization efficiency of the hydropower station, and the water level difference between the upstream and the downstream is lower for the specified power output, so that the material and the cost are saved for constructing the hydropower station; or, the same water level difference can ensure better power generation effect of the hydropower station.
Drawings
Fig. 1 is a schematic view of a turbine arrangement according to the present invention;
FIG. 2 is a schematic view of a turbine assembly according to the present invention;
the hydraulic pump comprises a water pump 1, a water turbine 2, a mechanical transmission device 3, a water turbine 4, a turbine device 5, a control system 101, a second rotating shaft 102, a fourth gear 103, a second blade 201, a transmission shaft 202, a second gear 203, a third gear 401, a first rotating shaft 402, a first blade 403 and a first gear.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the utility model provides a hydroelectric turbine device, including water pump 1, mechanical transmission 2, hydraulic turbine 3, turbine device 4 and control system 5, wherein, water pump 1 sets up in the upstream river course, and hydraulic turbine 3 sets up in the downstream river course, and turbine device 4 sets up in the downstream of hydraulic turbine 3, and mechanical transmission 2 is connected to turbine device 4, and mechanical transmission 2 connects water pump 1; a water head is arranged between the upstream river channel and the downstream river channel.
The turbine device 4 comprises a first rotating shaft 401, a first blade 402 and a first gear 403, the first blade 402 and the first gear 403 are respectively sleeved at two ends of the first rotating shaft 401, and the first blade 402 drives the first rotating shaft 401 to rotate under the impact of water flow, so as to drive the first gear 403 to rotate; the first gear 403 is connected to the mechanical transmission 2.
The mechanical transmission device 2 comprises three gear sets, namely a first gear set, a second gear set and a third gear set, wherein the first gear set is in meshed connection with the first gear 403, the second gear set is in meshed connection with the third gear set through the second gear set, and the third gear set is in meshed connection with the water pump 1.
The first gear set, the second gear set and the third gear set have the same structure and respectively comprise a transmission shaft 201, a second gear 202 and a third gear 203, wherein the second gear 202 and the third gear 203 are respectively sleeved at two ends of the transmission shaft 201.
The water pump 1 comprises a second rotating shaft 101, a fourth gear 102 and a second blade 103, wherein the second blade 103 and the fourth gear 102 are respectively sleeved at two ends of the second rotating shaft 101, and the fourth gear 102 is meshed with the third gear set.
The control system 5 comprises a PLC controller and a flow sensor, the flow sensor is used for collecting the water flow of an upstream river channel in real time and transmitting the collected data to the PLC controller, and the PLC controller sends an instruction to the turbine device 4 according to the received data to control the start/stop of the turbine device 4.
The working principle is as follows:
the flow sensor collects the water flow of an upstream river channel and transmits the collected data to the PLC, the PLC compares the received data with a set threshold value, and when the data is smaller than the set threshold value, the PLC controls the mechanical transmission device of the turbine device 4, so that the first gear 401 and the first gear set are not meshed any more; the third gear set and the fourth gear 102 are not meshed with each other, so that the water press machine and the turbine device are not connected, and the whole device does not work; when the value is larger than the set threshold value, the PLC controller controls the mechanical transmission device of the turbine device 4, so that the first gear 401 is meshed with the first gear set, the third gear set is meshed with the fourth gear 102, and the whole device starts to work.
First blade is under the impact of rivers, drive first pivot and rotate, and then drive first gear revolve, turn into mechanical energy with the kinetic energy of rivers, and transmit this mechanical energy to pressurized-water machine 1 through mechanical transmission 2 on, pressurized-water machine 1 is through the continuous rotation of second blade, similar screw, attract the water in upper reaches river course back to the low reaches, be used for increasing the water head between upper reaches and the low reaches, the rivers of energy increase can rely on less flow to drive 3 equivalent operations of hydraulic turbine, power generation efficiency has been improved promptly.
A hydroelectric power generation method for improving power generation efficiency is based on the existing hydropower station and a pressure water channel and comprises the following steps:
(1) after the water flow applies work through the water turbine 3, the available kinetic energy is remained to drive the turbine device 4 for hydroelectric power generation to rotate;
(2) the turbine device 4 drives the water pump 1 to rotate through the mechanical transmission device 2;
(3) the water pump 1 sucks water at the upstream and pushes the water to the downstream by continuously rotating like a propeller;
(4) the upstream water flow is attracted and pushed by the water pump 1, so that the flow speed is increased, the energy is increased, and the phase change is equivalent to increase the water level difference between the upstream water flow and the downstream water flow;
(5) the water flow with increased energy can drive the water turbine 3 to equivalently operate by means of less flow, namely, the power generation efficiency is improved;
(6) after water flows through the water turbine 3, part of unused mechanical energy is also available, and the mechanical energy can be used for driving the turbine device 4;
(7) the mechanical energy of the upstream water flow is respectively absorbed by the water turbine 3 and the turbine device 4, the energy absorbed by the water turbine 3 is far greater than that absorbed by the turbine device 4, when a certain state is reached, the water flow speed of the water flow turbine device 4 is not increased any more, and the whole set of device reaches a balanced state;
(8) the process is equivalent to utilizing the water flow energy which cannot do work after passing through the water turbine 3, and the generating efficiency of the hydropower station is improved.
In the step (1), the turbine device 4 can be arranged behind the water turbine 3 or behind a gate of a non-power generation section of the dam, and only the transmission device needs to be slightly changed.
In the step (2), the water pump 1 can be arranged at a proper position of the water channel according to actual conditions and can be arranged in multiple stages.
The utility model relates to a method of hydroelectric power generation turbine device, on traditional power station basis, carry out the turbine device and add. And a large amount of construction is not needed.
Pressurized-water machine 1 and turbine device 4 should be installed in order to guarantee the effect in the water course, and the installation process should guarantee not have the rivers that influence the construction in the water course, and notice simultaneously, in order to maximize work efficiency, turbine device 4 should be put at 3 backs of the hydraulic turbine, the position that the water velocity is high, and pressurized-water machine 1 should be put at the water course entry in power station, the lower position of velocity of flow. The initial flow rates of the water streams at the two locations should differ significantly.
The turbine device 4 works better when the water flow speed is high. When the turbine device 4 works poorly or does not work effectively at a certain moment, the control system 5 should stop the whole device.
To sum up, the utility model discloses can increase the generating efficiency. The structure of the device is simple, the front and back coupling has an automatic adjusting function, the cost is low, the effect is good, and the device is suitable for popularization and application.
Claims (6)
1. A hydroelectric turbine device is characterized by comprising a water pressing machine (1), a mechanical transmission device (2), a water turbine (3) and a turbine device (4), wherein the water pressing machine (1) is arranged at the upstream of a river channel with a water level difference, the water turbine (3) is arranged at the downstream of the river channel, and the turbine device (4) is arranged at the downstream of the river channel; the turbine device (4) is connected with the mechanical transmission device (2), and the mechanical transmission device (2) is connected with the water press machine (1).
2. A turbine installation according to claim 1, characterised in that the turbine installation (4) comprises a first shaft (401), a first blade (402) and a first gear (403), the first blade (402) and the first gear (403) being respectively fitted around the two ends of the first shaft (401); the first gear (403) is connected to the mechanical transmission (2).
3. The hydroelectric turbine installation according to claim 1, wherein the mechanical transmission means (2) comprises three gear sets, namely a first gear set, a second gear set and a third gear set, wherein the first gear set is connected with the turbine installation (4), the second gear set is in meshed connection with the third gear set through the second gear set, and the third gear set is connected with the water pump (1).
4. A turbine device according to claim 3, characterised in that the first gear set, the second gear set and the third gear set are of the same structure and comprise a transmission shaft (201), a second gear (202) and a third gear (203), wherein the second gear (202) and the third gear (203) are respectively sleeved on two ends of the transmission shaft (201).
5. The hydroelectric turbine device as claimed in claim 1, wherein the water pump (1) comprises a second rotating shaft (101), a fourth gear (102) and a second blade (103), wherein the second blade (103) and the fourth gear (102) are respectively sleeved at two ends of the second rotating shaft (101), and the fourth gear (102) is connected with the mechanical transmission device (2).
6. A turbine unit according to claim 1, characterised by further comprising a control system (5), the control system (5) comprising a PLC controller and a flow sensor, the flow sensor being connected to the PLC controller, the PLC controller being connected to the turbine unit (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920603233.9U CN211230686U (en) | 2019-04-28 | 2019-04-28 | Hydroelectric power generation turbine device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920603233.9U CN211230686U (en) | 2019-04-28 | 2019-04-28 | Hydroelectric power generation turbine device |
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| Publication Number | Publication Date |
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| CN211230686U true CN211230686U (en) | 2020-08-11 |
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| CN201920603233.9U Active CN211230686U (en) | 2019-04-28 | 2019-04-28 | Hydroelectric power generation turbine device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989869A (en) * | 2019-04-28 | 2019-07-09 | 中国华能集团清洁能源技术研究院有限公司 | A kind of water generating turbine apparatus and method |
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2019
- 2019-04-28 CN CN201920603233.9U patent/CN211230686U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989869A (en) * | 2019-04-28 | 2019-07-09 | 中国华能集团清洁能源技术研究院有限公司 | A kind of water generating turbine apparatus and method |
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