CN213598461U - Brake control device for hydroelectric power generation - Google Patents
Brake control device for hydroelectric power generation Download PDFInfo
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- CN213598461U CN213598461U CN202022031821.5U CN202022031821U CN213598461U CN 213598461 U CN213598461 U CN 213598461U CN 202022031821 U CN202022031821 U CN 202022031821U CN 213598461 U CN213598461 U CN 213598461U
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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 brake control device for hydroelectric power generation, which comprises a main air inlet, an exhaust port, a brake control air port, a reset control air port, a first hand-pull valve, a second hand-pull valve, a third hand-pull valve, a steering valve, a brake electromagnetic air valve and a reset electromagnetic air valve; the main air inlet is connected to the first hand-pull valve, the first hand-pull valve is respectively connected with the brake electromagnetic air valve, the reset electromagnetic air valve and the steering valve, the steering valve is respectively connected with the second hand-pull valve and the third hand-pull valve, the brake electromagnetic air valve is connected with the second hand-pull valve, the reset electromagnetic air valve is connected to the third hand-pull valve, the second hand-pull valve is connected to the brake control air port, the third hand-pull valve is connected to the reset control air port, and the exhaust port is respectively connected with the steering valve, the brake electromagnetic air valve and the reset electromagnetic air valve; realize manual and automatic integration.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a brake control device for hydroelectric power generation.
[ background of the invention ]
The air brake braking system is an important component of the water turbine generator set and mainly used for preventing the bearing bush from being damaged when the generator set rotates or creeps at a low rotating speed. The air brake control loop is automatically put in when the rotating speed of the unit is reduced to 15% -35% of the rated rotating speed, and the air brake piston is jacked up under the air pressure of 0.7-0.78 MPa, so that the friction force between the brake plate and the rotor brake ring is increased, and the purposes of braking, adding brake and stopping are achieved. The more the number of times of starting and stopping of the unit is, the more frequent the switching of the air brake is, so that the performance of the air brake braking system of the unit is greatly improved.
The existing brake devices are directly connected to a unit through pipelines, when the brake is needed, a brake switch is turned on to brake, when the brake is needed to be released, one pipeline needs to be closed, and the other pipeline is turned on; the above method cannot be automated.
[ Utility model ] content
The to-be-solved technical problem of the utility model lies in providing a brake control device for hydroelectric power generation, realizes manual and automatic integration.
The utility model discloses a realize like this: a brake control device for hydroelectric power generation comprises a main air inlet, an exhaust port, a brake control air port, a reset control air port, a first hand-operated valve, a second hand-operated valve, a third hand-operated valve, a steering valve, a brake electromagnetic air valve and a reset electromagnetic air valve; the main air inlet is connected to first hand-operated valve connects respectively brake electromagnetism air valve, reset electromagnetism air valve and steering valve, the steering valve connects respectively second hand-operated valve and third hand-operated valve, brake electromagnetism air valve connects the second hand-operated valve, reset electromagnetism air valve is connected to third hand-operated valve, the second hand-operated valve is connected to brake control gas port, third hand-operated valve is connected to reset control gas port, the gas vent connects respectively steering valve, brake electromagnetism air valve and reset electromagnetism air valve.
Furthermore, the brake control air pressure measuring device further comprises a brake control air pressure measuring port, wherein the brake control air pressure measuring port is used for being connected with an air pressure measuring instrument and measuring the air pressure of the brake control air port.
Furthermore, the air pressure measuring device further comprises a main air pressure measuring port, and the main air pressure measuring port is used for being connected with an air pressure measuring instrument and measuring the air pressure of the main air inlet.
Furthermore, the device also comprises a resetting control air pressure measuring port which is used for connecting an air pressure measuring instrument and measuring the air pressure of the resetting control air port.
The utility model has the advantages that: the utility model discloses a brake control device for hydroelectric power generation, all tracheas adopt the board-like hookup form to integrate on the integrated board, realize not having the pipeline to connect. The dynamic seal adopts an automatic compensation structure, the static seal adopts plane O-shaped seal, the structure is simple, the sealing performance is reliable, the arrangement structure of each control element is compact and reasonable, the volume is small, the action sealing performance is reliable, and the operation and maintenance are convenient. The automatic or manual brake adding and pressure discharging can be realized, the centralized control is realized, and the automatic or manual brake adding and resetting can be realized.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of the air circuit of the brake control device for hydroelectric power generation of the present invention.
Fig. 2 is a schematic view of a brake control device for hydroelectric power generation according to the present invention.
Fig. 3 is a schematic view of the manual brake control of the brake control device for hydroelectric power generation according to the present invention.
Fig. 4 is a schematic diagram of the manual reset control of the brake control device for hydroelectric power generation according to the present invention.
Fig. 5 is an automatic control schematic diagram of the brake control device for hydroelectric power generation according to the present invention.
[ detailed description ] embodiments
The embodiment of the utility model provides a through providing a brake control device for hydroelectric power generation, solved the technical problem that can't realize automated control among the prior art, realized automatic and the integrative technological effect of manual set.
The brake control device for hydroelectric power generation mainly has the following functions:
1 the unit is because the rotating part rotates inertia greatly in the normal shutdown process, in order to avoid the unit to operate under lower rotational speed for a long time, cause the oil film between thrust tile and runner plate to destroy, cause the accident of burning tile, add the brake when the rotational speed drops to the specified value and brake, make the unit shut down rapidly.
2 when the unit is stopped for a long time or overhauled and then started again, the air brake disc is used for jacking the rotor, so that an oil film is reestablished between the thrust tile and the mirror plate.
3 during the installation or maintenance of the unit, high-pressure oil is injected into the brake to jack the rotor, the weight of the rotating part of the unit is transferred to the cylinder body of the brake and is transmitted to the foundation of the machine pit.
Referring to fig. 1 to 2, the brake control device for hydroelectric power generation of the present invention includes a main air inlet P, an air outlet 0, a brake control air port a, a reset control air port B, a first hand-operated valve SLF1, a second hand-operated valve SLF2, a third hand-operated valve SLF3, a steering valve SZF, a brake electromagnetic air valve, and a reset electromagnetic air valve; the main air inlet P is connected to first hand-operated valve SLF1 first hand-operated valve SLF1 connects respectively brake electromagnetism air valve, reset electromagnetism air valve and diverter valve SZF, diverter valve SZF connects respectively second hand-operated valve SLF2 and third hand-operated valve SLF3, second hand-operated valve SLF2 is connected to brake electromagnetism air valve, reset electromagnetism air valve is connected to third hand-operated valve SLF3, second hand-operated valve SLF2 is connected to brake control gas port A, third hand-operated valve SLF3 is connected to reset control gas port B, gas vent 0 connects respectively diverter valve SZF, brake electromagnetism air valve and reset electromagnetism air valve.
The utility model relates to a brake control device for hydroelectric power generation, which also comprises a brake control air pressure measuring port, a main air inlet pressure measuring port and a reset control air pressure measuring port, wherein the brake control air pressure measuring port is used for connecting an air pressure measuring instrument and measuring the air pressure of a brake control air port A; the main air inlet pressure measuring port is used for connecting an air pressure measuring instrument and measuring the air pressure of the main air inlet P; the resetting control air pressure measuring port is used for being connected with an air pressure measuring instrument and measuring the air pressure of the resetting control air port B.
Manual operation: when SLF1, SLF2 and SLF3 hand-pulled valves are in manual positions, compressed air of 0.7MPa is introduced. When the SZF is rotated to be manually thrown into a position (figure 3), compressed air enters a brake control air port A through a steering valve SZF to realize unit braking, and if the pressure of a brake cavity needs to be maintained, the SZF keeps the brake position. When the SZF is rotated to the manual resetting position (figure 4), compressed air enters the resetting control air port B through the steering valve SZF to realize the resetting of the unit, if the pressure maintaining of the resetting cavity is needed, the SZF can keep the resetting position, and when the SZF is rotated to the middle position, the pressure maintaining of the braking cavity and the resetting cavity is not carried out (figure 5).
Automatic operation: when the SLF1, SLF2 and SLF3 hand-pulling valves are in the automatic position, compressed air of 0.7MPa is introduced, and the steering valve SZF is in the 'N' position (figure 5). When the brake electromagnetic air valve input coil is electrified, compressed air enters the brake control air port A through the electromagnetic air valve to realize unit braking, and after the input coil is powered off, the air brake keeps the input cavity in a pressurization state. When the exhaust coil of the brake electromagnetic air valve is electrified, the compressed air input into the cavity is exhausted through the electromagnetic valve. When the reset coil of the reset magnetic air valve is electrified, compressed air enters the reset control air port B through the electromagnetic air valve to realize the reset of the unit. And after the reset coil is powered off, the air brake keeps the pressurized state of the reset cavity. When the exhaust coil of the resetting electromagnetic air valve is electrified, the compressed air in the resetting cavity is exhausted through the electromagnetic valve. (the coil can not be electrified for a long time, and the action is 3-5 seconds)
Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.
Claims (4)
1. A brake control device for hydroelectric power generation, comprising: the brake system comprises a main air inlet, an exhaust port, a brake control air port, a reset control air port, a first hand-operated valve, a second hand-operated valve, a third hand-operated valve, a steering valve, a brake electromagnetic air valve and a reset electromagnetic air valve; the main air inlet is connected to first hand-operated valve connects respectively brake electromagnetism air valve, reset electromagnetism air valve and steering valve, the steering valve connects respectively second hand-operated valve and third hand-operated valve, brake electromagnetism air valve connects the second hand-operated valve, reset electromagnetism air valve is connected to third hand-operated valve, the second hand-operated valve is connected to brake control gas port, third hand-operated valve is connected to reset control gas port, the gas vent connects respectively steering valve, brake electromagnetism air valve and reset electromagnetism air valve.
2. A brake control device for hydraulic power generation as claimed in claim 1, wherein: the brake control air pressure measuring port is used for being connected with an air pressure measuring instrument and measuring the air pressure of the brake control air port.
3. A brake control device for hydraulic power generation as claimed in claim 1, wherein: the air pressure measuring device also comprises a main air inlet pressure measuring port, wherein the main air inlet pressure measuring port is used for being connected with an air pressure measuring instrument and measuring the air pressure of the main air inlet.
4. A brake control device for hydraulic power generation as claimed in claim 1, wherein: the device also comprises a resetting control air pressure measuring port which is used for connecting an air pressure measuring instrument and measuring the air pressure of the resetting control air port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022031821.5U CN213598461U (en) | 2020-09-16 | 2020-09-16 | Brake control device for hydroelectric power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022031821.5U CN213598461U (en) | 2020-09-16 | 2020-09-16 | Brake control device for hydroelectric power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213598461U true CN213598461U (en) | 2021-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022031821.5U Active CN213598461U (en) | 2020-09-16 | 2020-09-16 | Brake control device for hydroelectric power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213598461U (en) |
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2020
- 2020-09-16 CN CN202022031821.5U patent/CN213598461U/en active Active
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