CN209671477U - A kind of control system for pushing up rotor and brake cylinder - Google Patents
A kind of control system for pushing up rotor and brake cylinder Download PDFInfo
- Publication number
- CN209671477U CN209671477U CN201920273805.1U CN201920273805U CN209671477U CN 209671477 U CN209671477 U CN 209671477U CN 201920273805 U CN201920273805 U CN 201920273805U CN 209671477 U CN209671477 U CN 209671477U
- Authority
- CN
- China
- Prior art keywords
- oil
- valve
- brake cylinder
- oil pipe
- way magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002828 fuel tank Substances 0.000 claims abstract description 22
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- -1 motor Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 95
- 239000010720 hydraulic oil Substances 0.000 description 15
- 239000000446 fuel Substances 0.000 description 11
- 239000012530 fluid Substances 0.000 description 10
- 238000005336 cracking Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses the control systems of a kind of top rotor and brake cylinder, including fuel tank, motor, oil scavenge pump, single-acting brake cylinder and controller；It further include two-position three way magnetic valve, pressure safety type overflow valve, check valve, two-position three way hand-operated valve and adjustable throttling；The oil outlet of oil scavenge pump is successively connected to two-position three way magnetic valve, check valve and the intracavitary of single-acting brake cylinder by oil pipe；It is connect by pressure safety type overflow valve on the oil pipe between two-position three way magnetic valve and check valve；Two-position three way hand-operated valve and adjustable throttling are sequentially connected in series and on the other oil pipes connect between check valve and single-acting brake cylinder, and be connected in the bypass oil pipe and fuel tank.The utility model is when pushing up rotor operating condition, it can prevent rotor part from continuing to rise and cause turbine-generator units failure when reaching setting position, when rotor part falls, it can prevent rotor part from causing to impact to the thrust bearing in turbine-generator units due to falling speed is too fast.
Description
Technical field
The utility model relates to the components control systems of turbine-generator units, and in particular to a kind of top rotor and brake oil
The control system of cylinder.
Background technique
In general, top rotor and brake cylinder are provided in turbine-generator units, and before turbine-generator units booting, brake oil
Rotor is jacked up certain altitude by cylinder, is made to establish oil film between thrust bearing shoe valve and runner plate in turbine-generator units, be prevented between the two
Dry friction leads to tile kilning.In turbine-generator units stopping process, brake block at the top of brake cylinder and it is fixed on rotor bottom
Brake hoop be in contact, generate friction catch and complete to shut down.As 201416504 Y of CN discloses a kind of turbine-generator units
Braking and top rotor arrangement, including fuel tank, oil pump, motor, oil leak endless tube oil return circuit and reset oil return circuit, motor
Control oil pump takes oil from fuel tank, and the oil pump is connected to two position three-way valve, and two position three-way valve connects with two overflow valves respectively
Logical, two overflow valves pass through check valve respectively and are connected to braking endless tube.
Above-mentioned turbine-generator units braking and top rotor arrangement work as system because overflow valve used is common common overflow valve
Dynamic oil cylinder jacks up rotor to setting height, and the oil pressure in fuel feeding oil pipe is more than the cracking pressure value of overflow valve, and overflow valve is opened
It opens, by the excess traffic hydraulic oil overflow oil return box in fuel feeding oil pipe, although the oil pressure in fuel feeding oil pipe no longer rises, oil suction
Pump is still to the intracavitary offer pressure oil of brake cylinder, and the top rotor movement of brake cylinder not necessarily stops at once, and because of water wheels
The gap between rotor part and stator component in generating set is generally kept in 20mm or so, cannot such as stop top in time and turn
Son movement, it will cause contacting between rotor part and stator component, makes turbine-generator units break down.In addition existing water wheels
In the brake top rotor arrangement of generating set, the whereabouts operating condition of rotor is paid little attention to, only in the oil return oil pipe of brake cylinder
Upper setting shut-off valve, when opening shut-off valve, the piston rod of brake cylinder by rotor Gravitative Loads power and hurtle down, turn
Sub- falling speed is too fast, is easy to cause to impact to the thrust bearing in turbine-generator units.
Summary of the invention
The purpose of the utility model is to provide the control systems of a kind of top rotor and brake cylinder, when pushing up rotor operating condition,
Continue to rise and turbine-generator units failure and rotor part is caused to fall when reaching setting position to prevent rotation stop subassembly
When, prevent rotor part from causing to impact to the thrust bearing in turbine-generator units due to falling speed is too fast.
The control system of top rotor and brake cylinder described in the utility model, including fuel tank, motor, oil scavenge pump, nonoculture
With brake cylinder and controller；It further include that two-position three way magnetic valve, pressure safety type overflow valve, check valve, two-position three way are manual
Valve and adjustable throttling；The motor and two-position three way magnetic valve are electrically connected with the controller by cable respectively, the oil scavenge pump
Shaft connected by the shaft of shaft coupling and motor, the inlet port of oil scavenge pump is connected to by oil pipe with fuel tank, and oil outlet leads to
Oil pipe is crossed successively to be connected to two-position three way magnetic valve, check valve and the intracavitary of single-acting brake cylinder；The pressure safety type overflows
It is connect by stream valve on the oil pipe between two-position three way magnetic valve and check valve；The two-position three way hand-operated valve and adjustable throttling according to
In secondary series connection and the other oil pipe connect between check valve and single-acting brake cylinder, and the bypass oil pipe is connected to fuel tank.
Further, it is equipped in the piston rod end of the single-acting brake cylinder close to switch.
Further, on the oil pipe between the oil scavenge pump and two-position three way magnetic valve and check valve and single-acting system
It is other on oil pipe between dynamic oil cylinder to be connected to pressure gauge, shut-off valve is provided on the bypass oil pipe where pressure gauge.
Further, the oil scavenge pump is axial plunger plunger pump.
The course of work of the control system are as follows: starting motor, shaft orientation plunger variable pump fuel feeding into oil pipe, at this point, two
Three-way magnetic valve and two-position three way hand-operated valve are all in oil circuit off-state, and the hydraulic oil in oil pipe is through two-position three way magnetic valve
Unloading port's off-load is powered to fuel tank, then by two-position three way magnetic valve, and two-position three way magnetic valve switches to operating position, i.e., two three
Oil circuit in three-way electromagnetic valve is connected, hydraulic oil enter through check valve it is intracavitary under single-acting brake cylinder, by single-acting brake oil
The piston rod of cylinder jacks up, when the hydraulic fluid pressure in oil pipe is not up to setup pressure value, axial plunger pump delivery fuel feeding, when
When hydraulic fluid pressure in oil pipe reaches setting pressure value, shaft orientation plunger variable pump starts small displacement fuel feeding；Once in oil pipe
When hydraulic fluid pressure is higher than the cracking pressure of pressure safety type overflow valve, the overflow port standard-sized sheet of pressure safety type overflow valve, by axis
It to the complete off-load of hydraulic oil of plunger variable pump discharge, and is back in fuel tank, then shutdown inspection, until hydraulic in oil pipe
Oil pressure is zero, i.e., when shaft orientation plunger variable pump stops the fuel feeding into oil pipe, the overflow eloquence of pressure safety type overflow valve is closed.
After rotor part is jacked to setting height, signal, after controller receives signal, two-position three-way electromagnetic are issued close to switch
Valve power loss, and oil circuit off-state position is switched to, the hydraulic oil of shaft orientation plunger variable pump discharge is through two-position three way magnetic valve
Unloading port's off-load is simultaneously stopped motor, the hydraulic oil in oil pipe after check valve is in state of pressure keeping, makes rotor portions to fuel tank
Part is continuously in setting height.When needing to fall rotor part, two-position three way hand-operated valve is switched into operating position, i.e., two
Oil circuit in the threeway hand-operated valve of position is connected, then adjusts adjustable throttling, and the Gravitative Loads power of rotor part is by single-acting brake oil
The piston rod of cylinder pushes, and intracavitary hydraulic oil is back to oil through two-position three way hand-operated valve and adjustable throttling under single-acting brake cylinder
In case, rotor part slowly falls, and will not cause to impact to the thrust bearing in turbine-generator units.
Similar with above-mentioned top rotor movement in turbine-generator units stopping process, distinctive points are single-acting brake cylinder
Piston rod upward stroke it is different, make brake block at the top of single-acting brake cylinder and the brake hoop that is fixed on rotor part bottom
Contact generates friction catch to complete to shut down.
Utility model has the advantages that passing through, pressure safety type is set in the control system that will push up rotor and brake cylinder
Overflow valve, when the hydraulic fluid pressure in oil pipe is higher than the cracking pressure of pressure safety type overflow valve, pressure safety type overflow valve
Overflow port standard-sized sheet, the complete off-load of hydraulic oil that shaft orientation plunger variable pump is discharged and is back in fuel tank, until in oil pipe
Hydraulic fluid pressure is zero, i.e., when shaft orientation plunger variable pump stops the fuel feeding into oil pipe, the overflow eloquence of pressure safety type overflow valve
Close, single-acting brake cylinder or piston rod can stop vertical motion immediately, to prevent rotor part and stator department
It is contacted between part, and avoids turbine-generator units failure, improve the operational reliability of turbine-generator units；Work as rotor
When component is in whereabouts operating condition, adjustable throttling then makes rotor part that can only slowly fall, to prevent to hydraulic generator
Thrust bearing in unit causes to impact.
Detailed description of the invention
Fig. 1 is the control principle drawing of the utility model；
Fig. 2 is the circuit connection diagram of controller, motor and two-position three way magnetic valve；
In figure: 1-fuel tank, 2-motors, 3-oil scavenge pumps, 4-shut-off valves, 5-pressure gauges, 6-two-position three way magnetic valves,
7-pressure safety type overflow valves, 8-check valves, 9-two-position three way hand-operated valves, 10-adjustable throttlings, 11-single-actings braking
Oil cylinder, 12-rotor parts, 13-close switches, 14-controllers.
Specific embodiment
The utility model will be further described with reference to the accompanying drawing.
The control system of top rotor and brake cylinder shown in Figure 1, including fuel tank 1, motor 2, oil scavenge pump 3, nonoculture
With brake cylinder 11 and controller 14；It further include two-position three way magnetic valve 6, pressure safety type overflow valve 7,8, two three, check valve
Logical hand-operated valve 9 and adjustable throttling 10, the motor 2 and two-position three way magnetic valve 6 are electrically connected by cable with controller 14 respectively
It connects, the shaft of the oil scavenge pump 3 is connect by shaft coupling with the shaft of motor 2, and the inlet port of oil scavenge pump 3 passes through oil pipe and fuel tank
1 connection, oil outlet pass through the oil pipe successively intracavitary company with two-position three way magnetic valve 6, check valve 8 and single-acting brake cylinder 11
It is logical；It is connect by the pressure safety type overflow valve 7 on the oil pipe between two-position three way magnetic valve 6 and check valve 8；Described two three
Logical hand-operated valve 9 and adjustable throttling 10 are sequentially connected in series and on the other oil pipes connect between check valve 8 and single-acting brake cylinder 11,
And the bypass oil pipe is connected to fuel tank 1.
It should be noted that the oil scavenge pump 3 is shaft orientation plunger variable pump, shaft orientation plunger variable pump in the present embodiment
Adaptivity is preferable, and the pressure and flow of output can be consistent with loading demand, and energy loss is lower, and system effectiveness mentions
The advantages that height, energy-saving effect is fairly obvious, and has smooth running, and discharge uniformity is good, and noise is low, and operating pressure is high.
As the preferred embodiment of the present embodiment, close open is installed in the piston rod end of the single-acting brake cylinder 11
13 are closed, to incude the gap variation between 2 groups of hydrogenerator of rotor part 12 and stator component (not shown), is such as turned
Gap between subassembly 12 and stator component becomes smaller, and issues signal close to switch 13 to controller 14, controller 14 receives
After signal, 6 power loss of two-position three way magnetic valve, the oil circuit in two-position three way magnetic valve 6 is disconnected, the hydraulic oil being discharged from oil scavenge pump 3
Unloading port's off-load through two-position three way magnetic valve 6 makes 3 off-load of oil scavenge pump to fuel tank 1.
Oil pipe as another preferred embodiment of the present embodiment, between the oil scavenge pump 3 and two-position three way magnetic valve 6
Upper side is connected to pressure gauge 5, the oil pipe to detect the charge oil pressure of oil scavenge pump 3, between check valve 8 and single-acting brake cylinder 11
Upper side is connected to pressure gauge 5, to detect the oil pressure in the oil pipe after check valve 8.Meanwhile in the bypass oil pipe where pressure gauge 5
On be provided with shut-off valve 4, when pressure gauge 5 works normally, which is normally open, when needing replacing or maintenance pressure
When table 5, first the shut-off valve 4 is closed, then pressure gauge 5 is removed, it is hydraulic in oil pipe when can prevent from replacing pressure gauge 5
Oil leakage.
The course of work of the control system are as follows: before turbine-generator units booting, start motor 2, shaft orientation plunger variable pump
The fuel feeding into oil pipe, at this point, two-position three way magnetic valve 6 and two-position three way hand-operated valve 9 be all in oil circuit off-state, in oil pipe
Unloading port off-load of the hydraulic oil through two-position three way magnetic valve 6 is powered to fuel tank 1, then by two-position three way magnetic valve 6, two-position three way electricity
Magnet valve 6 switches to operating position, i.e., the oil circuit in two-position three way magnetic valve 6 is connected, and hydraulic oil enters single-acting system through check valve 8
It is intracavitary under dynamic oil cylinder 11, the piston rod of single-acting brake cylinder 11 is jacked up, the hydraulic fluid pressure in oil pipe is not up to set
When level pressure force value, axial plunger pump delivery fuel feeding, when the hydraulic fluid pressure in oil pipe reaches setting pressure value, axial plunger
Variable pump starts small displacement fuel feeding；When the hydraulic fluid pressure in oil pipe is higher than the cracking pressure of pressure safety type overflow valve 7,
The overflow port standard-sized sheet of pressure safety type overflow valve 7, the complete off-load of hydraulic oil that shaft orientation plunger variable pump is discharged, and it is back to oil
In case 1, then shutdown inspection, until the hydraulic fluid pressure in oil pipe is zero, i.e., shaft orientation plunger variable pump stops supplying into oil pipe
When oily, the overflow eloquence of pressure safety type overflow valve 7 is closed.After rotor part 12 is jacked to setting height, close to switch
13 issue signal, after controller 14 receives signal, 6 power loss of two-position three way magnetic valve, and oil circuit off-state position is switched to,
Unloading port off-load of the hydraulic oil through two-position three way magnetic valve 6 of shaft orientation plunger variable pump discharge is simultaneously stopped motor 2 to fuel tank 1,
The hydraulic oil in oil pipe after check valve 8 is in state of pressure keeping, and rotor part 12 is made to be continuously in setting height, hydraulic generator
Oil film is established between the thrust bearing shoe valve and runner plate of unit, dry friction between the two is prevented, leads to tile kilning.When needing rotor part 12
When decentralization, two-position three way hand-operated valve 9 is switched into operating position, i.e., the oil circuit in two-position three way hand-operated valve 9 is connected, then adjusting can
Flow regulating valve 10, Gravitative Loads power of the piston rod of single-acting brake cylinder 11 by rotor part 12, single-acting brake cylinder
Intracavitary hydraulic oil is back in fuel tank 1 through two-position three way hand-operated valve 9 and adjustable throttling 10 under 11, under rotor part 12 is slow
It falls, the thrust bearing in 2 groups of hydrogenerator will not be caused to impact.
Similar with top rotor movement in turbine-generator units stopping process, distinctive points are the work of single-acting brake cylinder
Stopper rod upward stroke is different, makes the brake block (not shown) at the top of single-acting brake cylinder and is fixed on rotor part bottom
The contact of brake hoop (not shown), generate friction catch and complete to shut down.
It should be noted that the effect of pressure safety type overflow valve 7 is similar to " fuse " in circuit in the present embodiment
Effect, can prevent hydraulic fluid pressure in oil pipe is more than the components for setting pressure and damaging 2 groups of hydrogenerator.
Claims (4)
1. the control system of a kind of top rotor and brake cylinder, including fuel tank (1), motor (2), oil scavenge pump (3), single-acting braking
Oil cylinder (11) and controller (14)；It is characterized by also including two-position three way magnetic valve (6), pressure safety type overflow valve (7),
Check valve (8), two-position three way hand-operated valve (9) and adjustable throttling (10)；The motor and two-position three way magnetic valve pass through respectively
Cable is electrically connected with the controller, and the shaft of the oil scavenge pump is connected by the shaft of shaft coupling and motor, the inlet port of oil scavenge pump
Be connected to by oil pipe with fuel tank, oil outlet by oil pipe successively with two-position three way magnetic valve, check valve and single-acting brake oil
The intracavitary connection of cylinder；It is connect by the pressure safety type overflow valve on the oil pipe between two-position three way magnetic valve and check valve；Institute
It states two-position three way hand-operated valve and adjustable throttling is sequentially connected in series and the other oil pipe connect between check valve and single-acting brake cylinder
On, and the bypass oil pipe is connected to fuel tank.
2. the control system of top rotor according to claim 1 and brake cylinder, it is characterised in that: in the single-acting system
The piston rod end of dynamic oil cylinder (11) is equipped with close to switch (13).
3. the control system of top rotor according to claim 1 and brake cylinder, it is characterised in that: in the oil scavenge pump
(3) on the oil pipe between two-position three way magnetic valve (6) and the oil between check valve (8) and single-acting brake cylinder (11)
It is other on pipe to be connected to pressure gauge (5), shut-off valve (4) are provided on the bypass oil pipe where pressure gauge.
4. the control system of top rotor according to claim 1 or 3 and brake cylinder, it is characterised in that: the oil scavenge pump
It (3) is axial plunger plunger pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920273805.1U CN209671477U (en) | 2019-03-04 | 2019-03-04 | A kind of control system for pushing up rotor and brake cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920273805.1U CN209671477U (en) | 2019-03-04 | 2019-03-04 | A kind of control system for pushing up rotor and brake cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209671477U true CN209671477U (en) | 2019-11-22 |
Family
ID=68570392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920273805.1U Expired - Fee Related CN209671477U (en) | 2019-03-04 | 2019-03-04 | A kind of control system for pushing up rotor and brake cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209671477U (en) |
-
2019
- 2019-03-04 CN CN201920273805.1U patent/CN209671477U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103508321B (en) | Hydraulic control device for monorail locomotive | |
| CN101603527B (en) | Emulsion pump testing system | |
| CN105502234A (en) | Speed-adjustable high-thrust hydraulic lifting table | |
| CN104879173A (en) | Standby oil supply device of lubricating system for bearings of spindles of large power generation sets | |
| CN206129947U (en) | Rubber belt conveyor disc brake hydraulic control system | |
| CN108383039A (en) | A kind of energy-saving stepping type lifter structure hydraulic control system | |
| CN101451922B (en) | Ultra-high pressure high flow supercharging and unloading system | |
| CN102197213A (en) | High-pressure fuel pump for an internal combustion engine | |
| CN209671477U (en) | A kind of control system for pushing up rotor and brake cylinder | |
| CN115853931B (en) | Speed limiting braking control system with adjustable speed limiting value | |
| CN209444657U (en) | The automatic start-stop valve of servo-hydraulic pumping system | |
| CN102032225B (en) | Hydraulic system of continuous oil pipe radial drilling equipment | |
| CN104454740B (en) | Milling device hydraulic system and steel rail milling and grinding vehicle | |
| CN201802626U (en) | Oil supply system of screw compressor | |
| CN105889373B (en) | The normally closed disc brake apparatus of aqueous medium with pressurized cylinder | |
| CN211202067U (en) | Energy-saving turbine EH oil station | |
| CN204716676U (en) | Hydraulic power system | |
| CN211573920U (en) | Multifunctional hydraulic test platform | |
| CN203486777U (en) | Single-rail crane hydraulic control device | |
| CN203214495U (en) | Potential energy recycling hydraulic control system of lifting equipment | |
| CN112879364A (en) | Energy-saving hydraulic system for hydraulic pumping unit | |
| CN208058388U (en) | A kind of new type of safe valve group for high pressure oil jacking device | |
| CN107420137B (en) | Gas turbine rotor displacement adjustment system and adjustment method | |
| CN202182459U (en) | Circulation line system for booster pump of turbine driven boiler feed water pump and deaerator water tank | |
| CN207131658U (en) | Hydraulic control system and hinge dam assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |