CN220101664U - Device for water turbine blade leakage and motion test - Google Patents
Device for water turbine blade leakage and motion test Download PDFInfo
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- CN220101664U CN220101664U CN202223469351.6U CN202223469351U CN220101664U CN 220101664 U CN220101664 U CN 220101664U CN 202223469351 U CN202223469351 U CN 202223469351U CN 220101664 U CN220101664 U CN 220101664U
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- cartridge
- pressure
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 6
- 230000002441 reversible effect Effects 0.000 claims abstract description 14
- 230000009471 action Effects 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 60
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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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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- Hydraulic Turbines (AREA)
Abstract
The utility model relates to the technical field of maintenance of hydroelectric generating sets, in particular to a device for leakage and motion test of a turbine blade. The pressure-resistant sealing leakage and the action test of the vane of the rotating slurry type hydroelectric generating set are used for hydroelectric generation. The hydraulic control system comprises a reversible oil pump, an oil source control valve group, a multi-channel electric control hydraulic integrated plug-in combination valve and a PLC control cabinet which are in control connection, wherein the PLC control cabinet is in control connection with a plurality of pressure sensors and displacement sensors. The improved test device has the functions of filling, discharging and opening, closing and leaking oil cavities of the rotating wheel, and the functions of maintaining pressure of the oil cavities, and is formed by combining a multi-channel electric control hydraulic integrated cartridge combination valve, a reversible oil pump, a set of special automatic controller and a set of special automatic program.
Description
Technical Field
The utility model relates to the technical field of hydroelectric generating set overhaul, in particular to a device for hydraulic turbine blade leakage and motion test. The pressure-resistant sealing leakage and the action test of the vane of the rotating slurry type hydroelectric generating set are used for hydroelectric generation.
Background
In the prior art, the vane pressure-resistant sealing leakage and action test device of the traditional axial flow slurry rotating type water turbine unit completes the functions of turning on and off the rotating wheel and maintaining pressure of a leakage oil cavity according to the requirements of operation function logic. The device is completed by a system consisting of two oil pumps, a plurality of single valves, a pressure gauge and hydraulic pipelines, and is provided with an oil return port 12, a pressurizing pump port 22, a test cover opening port 23, a runner body oil discharge valve port 24 (K cavity), a test cover closing cavity 25 and other interfaces, and the whole hydraulic system is arranged on a trolley, and the specific view is shown in the following figure 3. According to the requirement of the operation function logic of the test purpose, the starting and stopping of the oil pump and the operations of filling, discharging and maintaining pressure inside and outside the runner body are all required to be manually operated in the whole course, the operation process is complex, the operation steps are complex, time and labor are wasted, the requirement on the technical business level of operators is high, the operators can only operate the operators with the operation flow being mastered by the operators, otherwise, the problems of damage to the newly overhauled runner components, oil leakage, personal injury and the like are caused.
Disclosure of Invention
The utility model aims to provide the device for the leakage and action test of the turbine blade, which has the advantages of optimized structure, more convenient use and maintenance quality guarantee.
The technical scheme of the utility model is as follows: the device for the hydraulic turbine blade leakage and action test is characterized by comprising a reversible oil pump, an oil source control valve group, a multi-channel electric control hydraulic integrated cartridge combination valve and a PLC control cabinet which are in control connection, wherein the PLC control cabinet is in control connection with a plurality of pressure sensors and displacement sensors.
In the above scheme, the method further comprises:
the reversible oil pump is a double pump, namely a first reversible oil pump and a second reversible oil pump; the oil source control valve group comprises a first oil source control valve group and a second oil source control valve group.
And each outlet on the multichannel electronic control hydraulic integrated plug-in combined valve adopts a quick connector.
The multi-channel electric control hydraulic integrated cartridge combination valve comprises five cartridge valves, four electromagnetic reversing valves and a pressure valve, and is combined in one multi-channel electric control hydraulic integrated cartridge combination valve; the first cartridge valve, the second cartridge valve, the third cartridge valve and the fourth cartridge valve are arranged in the integrated block, are pressed by four cover plates and are connected with the first hydraulic reversing valve through oil ways, and the first hydraulic reversing valve is arranged on the cover plate of the cartridge valve to form a hydraulic loop for rotating the rotating wheel; the fifth cartridge valve is arranged in the integrated block, pressed by the cover plate and connected with the second hydraulic reversing valve, the hydraulic reversing ball valve and the hydraulic overflow valve through oil ways, and meanwhile, the fifth cartridge valve, the second hydraulic reversing valve, the hydraulic reversing ball valve and the hydraulic overflow valve form a hydraulic loop with the pressure stable in the other runner chamber; the multi-channel electric control hydraulic integrated plug-in combination valve is provided with a pressure oil flange and six inlets and outlets which are communicated with an oil source oil way and tested equipment.
The valve body of the multi-channel electric control hydraulic integrated plug-in combined valve is provided with a pressure transmitter.
The first hydraulic reversing valve is a three-position four-way valve, the second hydraulic reversing valve is a three-position four-way valve, and the hydraulic reversing ball valve is a two-position three-way valve.
The utility model has the advantages that: 1. aiming at the defects, the improved test device fully and intelligently completes all processes of filling, discharging and opening, closing and leaking oil cavities of the rotating wheel body and the rotating wheel body by combining a multi-channel electric control hydraulic integrated cartridge combination valve, a reversible oil pump, a set of special automatic controller and a program, and generates and outputs a test report, solves the problems of old, disordered setting and low level of full manual operation of the prior device, does not use a method of manually operating the valve to complete the operation, avoids risks such as manual operation errors, distortion, time consumption, accidents and the like, and improves the maintenance efficiency and reliability of the hydroelectric generating set. 2. The original too huge test device is designed in an integrated way, the original functions are reserved, and new functions are added simultaneously: the automatic inspection test process and the generation and output test report realize automatic operation, so as to reduce operators, improve working efficiency, accurately and truly reflect the conditions of overhauling equipment, ensure the safety of the equipment and personnel, and improve the intelligent and automatic level of the test equipment, and finally ensure the overhauling quality of the hydraulic turbine unit. 3. The technical content, the practicability and the operability of the test device are improved, and the overhaul quality of the water turbine unit is finally ensured.
Embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of the system of the present utility model.
FIG. 2 is a schematic diagram of a multi-channel electronically controlled hydraulic integrated cartridge combination valve system in accordance with the present utility model.
Fig. 3 is a schematic view of a similar device in the prior art.
Detailed Description
Referring to fig. 1, the part names are as follows: the hydraulic oil pump test device comprises a pressure transmitter 11, a PLC control cabinet 13, a first oil pump 14, a second oil pump 15, a first oil source control valve group 16, a second oil source control valve group 17, a multi-channel electric control hydraulic integrated plug-in combined valve 18, tested equipment 19, a displacement sensor 20 and an oil tank 21.
Referring to fig. 1, the hydraulic turbine vane leakage and motion test device comprises six parts, specifically a first reversible oil pump 14, a second reversible oil pump 15 (reversible running, two pumps of the device complete different test works in different test stages through a control program), a first oil source control valve group 17, a second oil source control valve group 16, a multi-channel electric control hydraulic integrated cartridge combined valve 18 (complete function execution action), a PLC control cabinet 13 (and a display and a software program), wherein the PLC control cabinet 13 is in control connection with a plurality of pressure transmitters 11 and displacement sensors 20, and the pressure transmitters and the displacement sensors are formed on a movable cart body, so that the test device is convenient to adapt to different test site environments. Each outlet of the multichannel electric control hydraulic integrated plug-in combination valve 18 connected with the tested equipment adopts a quick-fit joint. The multi-channel electric control hydraulic integrated cartridge combination valve 18 is connected with the tested equipment 19 (rotating slurry type hydroelectric generating set rotating wheel). A control cabinet is composed of a local control console and upper computer client software, wherein the local control console can be separated from an upper computer to independently run, and automatic and intelligent tests of the whole device are completed.
Referring to fig. 1, the method of use: when the rotary oil pump works, the first oil pump 14 is rotated to charge oil into the rotary wheel body, and then the second oil pump 15 is rotated to be matched with the first oil pump 14 to complete oil charging in the rotary wheel body. After the test starts, the PLC control cabinet 13 sends out a command to enable the multichannel electric control hydraulic integrated plug-in combined valve 18 system to keep the control of the pressure of the wheel chamber (K cavity) in the continuous opening and closing process of the vane through an electric control signal, the pressure is always kept at 0.5+/-0.05 Mpa, and a scheme of directly driving the oil cylinder through a digital proportional valve is adopted for accurately controlling the oil pressure. The control mode selects a PID control algorithm. The PID Compact instruction module of the PLC is selected, so that continuous PID control can be realized, and the output mode is analog quantity or Pulse Width Modulation (PWM). The analog quantity can be directly output to a proportional valve driving plate, and the PWM signal directly drives the proportional valve after the load capacity is improved through the solid relay. The two driving modes can be flexibly selected according to the situation.
Referring to fig. 2, the part names are as follows: the hydraulic reversing valve comprises a first cartridge valve 1, a second cartridge valve 2, a third cartridge valve 3, a fourth cartridge valve 4, a fifth cartridge valve 5, a hydraulic overflow valve 6, a second hydraulic reversing valve 7, a hydraulic reversing ball valve 8, a pressure sensor 9, a first hydraulic reversing valve 10, a pressure transmitter 11, an oil return 12, an opening A, an opening B, an opening C, an opening D and an opening K.
Referring to fig. 2, a pilot-controlled hydraulic reversing valve and a hydraulic pressure valve are used to form a pilot-operated hydraulic system that is combined in a multi-channel electronically controlled hydraulic integrated cartridge combination valve 18. The functions of turning on/off and pressure maintaining of a leakage oil cavity of a rotating wheel (called the rotating wheel for short) of the rotating slurry type hydroelectric generating set are realized.
Referring to fig. 2, five cartridge valves (cartridge valves are collectively called as hydraulic control valves, are on-off valves for controlling large flow of working oil by using small flow of control oil, and the basic core element of the cartridge valves is a hydraulic control type, single control port two-way hydraulic resistance unit arranged in a main stage of an oil way, so the cartridge valves are also called as two-way cartridge valves), four electromagnetic directional valves and pressure valves, and are combined in a multi-channel electric control hydraulic integrated cartridge combination valve 18; the first cartridge valve 1, the second cartridge valve 2, the third cartridge valve 3 and the fourth cartridge valve 4 are arranged in a main valve body integrated block, are pressed by four cover plates and are connected with the first hydraulic reversing valve 10 through oil ways, the first hydraulic reversing valve 10 is arranged on the cover plates of the cartridge valves to form a hydraulic loop for rotating a rotating wheel, and the valve body of the integrated cartridge combined valve is provided with a pressure transmitter 11; the fifth cartridge valve 5 is arranged in the main valve body integrated block and consists ofThe cover plate is pressed and connected with the second hydraulic reversing valve 7, the hydraulic reversing ball valve 8 and the hydraulic overflow valve 6 through oil ways, and is simultaneously arranged on the cover plate or the integrated valve body of the fifth cartridge valve 5, the second hydraulic reversing valve 7, the hydraulic reversing ball valve 8 and the hydraulic overflow valve 6 form a hydraulic loop with the pressure stable in the other runner chamber, and the valve body of the integrated cartridge combined valve is provided with a pressure sensor 9; the integrated cartridge combination valve is provided with a pressure oil flange and six inlets and outlets which are communicated with an oil way connected with the tested equipment, and the six inlets and the outlets are respectively: oil return 12, port A, port B, port C, port D and port K. The opening A is connected with an opening cavity of the cylinder piston of the rotating wheel chamber. And the port B is connected with a closing cavity of the cylinder piston of the rotating wheel chamber. And the port C is connected with an outlet of the first oil pump.K mouth connecting and rotating deviceWheel room.
Referring to fig. 2, the first hydraulic directional valve 10 is a three-position four-way valve, and the actuation position is accomplished by an electromagnet that controls the actuation. The second hydraulic reversing valve 7 is a three-position four-way valve, the hydraulic reversing ball valve 8 is a two-position three-way valve, and the action position and time are completed by an electromagnet for controlling the action.
Referring to fig. 2, the first cartridge valve 1-the fifth cartridge valve 5 are installed in the valve hole inner cover plate of the main valve body integrated block according to the system working function to be pressed and fixed, and the first hydraulic reversing valve 10, the second hydraulic reversing valve 7, the hydraulic reversing ball valve 8 and the hydraulic overflow valve 6 are installed on the cover plate to be fixed by bolts.
Referring to fig. 2, the first hydraulic reversing valve 10 is connected with the first cartridge valve 1 to the fourth cartridge valve 4 according to a control oil path to form a hydraulic loop for rotating the rotating wheel. The fifth cartridge valve 5, the second hydraulic reversing valve 7, the hydraulic reversing ball valve 8 and the hydraulic overflow valve 6 form a hydraulic circuit with the pressure of the other runner chamber kept stable.
The hydraulic reversing ball valve 8 has the functions of: when the pressure of the runner chamber changes, the pressure of the runner chamber is supplemented or discharged by controlling the action of the electromagnet of the hydraulic reversing ball valve 8, so that the pressure of the runner chamber is kept stable.
The pressure sensor 9 functions as: the pressure change value from the device under test, i.e. the rotor chamber, is monitored and measured.
The pressure transmitter 11 functions as: the system pressure from the oil source is monitored and measured for both too high and too low values.
Referring to fig. 2, the method of use or principle of operation: when the rotary wheel chamber oil cylinder is in operation, the pressure oil is communicated with the oil inlet through the oil outlet B, the oil inlet A is communicated with the oil return, the rotary wheel chamber oil cylinder is closed, and the rotary wheel blades are rotated rightwards through the operation frame.
Referring to fig. 2, conversely, the first hydraulic reversing valve 10 is kept at the right end position by an electric control signal, the first cartridge valve 1 and the third cartridge valve 3 are closed, the second cartridge valve 2 and the fourth cartridge valve 4 are communicated, the A, B oil way is reversed, the cylinder action of the runner chamber is opened, the runner blade is rotated leftwards by an operation frame, and the whole process achieves the automatic controlled rotation of the vane hydraulic pressure.
Referring to fig. 2, in the same way, the cartridge valve system is connected with pressure oil in working, and the second hydraulic reversing valve 7 and the fifth cartridge valve 5, the hydraulic reversing ball valve 8 and the hydraulic overflow valve 6 feed back the control of electric signals through the pressure sensor 9, so that the pressure output by the K port is kept stableK mouth connecting and rotating deviceWheel room) to achieve the effect of keeping pressure stable for a long time in the sealing pressure test.
The above description is only of specific embodiments of the present utility model, and the various illustrations do not limit the essential content of the present utility model.
Claims (6)
1. The device for the hydraulic turbine blade leakage and action test is characterized by comprising a reversible oil pump, an oil source control valve group, a multi-channel electric control hydraulic integrated plug-in combined valve (18) and a PLC control cabinet (13) which are in control connection, wherein the PLC control cabinet (13) is in control connection with a plurality of pressure transmitters (11) and displacement sensors (20).
2. The device for water turbine blade leakage and motion test according to claim 1, characterized in that the reversible oil pump is a double pump, namely a first reversible oil pump (14) and a second reversible oil pump (15); the oil source control valve group comprises a first oil source control valve group (17) and a second oil source control valve group (16).
3. The device for the leakage and motion test of the blades of the water turbine according to claim 1 or 2, wherein each outlet of the multi-channel electric control hydraulic integrated plug-in combined valve (18) adopts a quick-fit joint.
4. The hydraulic turbine vane leakage and motion test device according to claim 1, characterized in that the multi-channel electric control hydraulic integrated cartridge combination valve (18) comprises five cartridge valves, four electromagnetic directional valves and a pressure valve which are combined together; the first cartridge valve (1), the second cartridge valve (2), the third cartridge valve (3) and the fourth cartridge valve (4) are arranged in a main valve body integrated block, are pressed by four cover plates and are connected with the first hydraulic reversing valve (10) through oil ways, and the first hydraulic reversing valve (10) is arranged on the cover plates of the cartridge valves to form a hydraulic loop for rotating the rotating wheel; the fifth cartridge valve (5) is arranged in the main valve body integrated block, is pressed by the cover plate and is connected with the second hydraulic reversing valve (7), the hydraulic reversing ball valve (8) and the hydraulic overflow valve (6) through oil ways, and is arranged on the cover plate of the fifth cartridge valve (5), and the fifth cartridge valve (5), the second hydraulic reversing valve (7), the hydraulic reversing ball valve (8) and the hydraulic overflow valve (6) form a hydraulic loop with the pressure stable in the other runner chamber; the multichannel electric control hydraulic integrated plug-in combination valve (18) is provided with a pressure oil flange and six inlets and outlets which are communicated with an oil source oil way and tested equipment.
5. The device for the leakage and motion test of the turbine blades according to claim 4, wherein the valve body of the multi-channel electric control hydraulic integrated plug-in combined valve (18) is provided with a pressure transmitter (11).
6. The device for the leakage and motion test of the turbine blades according to claim 4, wherein the first hydraulic reversing valve (10) is a three-position four-way valve, the second hydraulic reversing valve (7) is a three-position four-way valve, and the hydraulic reversing ball valve (8) is a two-position three-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223469351.6U CN220101664U (en) | 2022-12-26 | 2022-12-26 | Device for water turbine blade leakage and motion test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223469351.6U CN220101664U (en) | 2022-12-26 | 2022-12-26 | Device for water turbine blade leakage and motion test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220101664U true CN220101664U (en) | 2023-11-28 |
Family
ID=88871159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223469351.6U Active CN220101664U (en) | 2022-12-26 | 2022-12-26 | Device for water turbine blade leakage and motion test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220101664U (en) |
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2022
- 2022-12-26 CN CN202223469351.6U patent/CN220101664U/en active Active
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