CN213543862U - High-power high-speed hydraulic dynamometer - Google Patents

Abstract

The utility model discloses a high-power high-speed water conservancy dynamometer mainly comprises stator (stator), rotor, guide ring, casing, end cover, water seal, oil blanket, bearing frame supporting, main shaft, shaft coupling, oil pan, water intaking valve, drain valve, centralized control case and vibration monitored control system etc.. The absorbed power is increased or decreased in proportion to the amount of water flowing through the rotor, and the adjustment of the absorbed power is controlled by the intake/discharge control valve. The high-speed hydraulic dynamometer is integrated with a centralized control box (a line concentration cabinet) and a vibration monitoring system, can display the running condition of the hydraulic dynamometer on site and remotely, and can evaluate the state of the hydraulic dynamometer. The utility model has the characteristics of measurement accuracy is high, the response is sensitive, the operational capability is strong, maintainability is good etc. excellent performance, in particular to hydraulic dynamometer, this kind of hydraulic dynamometer can be fit for high rotational speed, big absorbed power, and the long and large service life, high adaptability etc. have splendid engineering using value.

Description

High-power high-speed hydraulic dynamometer

Technical Field

The utility model relates to a high-power high-speed hydraulic dynamometer for engine power consumption and measurement.

Background

With the development of modern science and technology, especially aiming at breaking through the key technology of 'two machines', the implementation of the important special item (special item for 'two machines') strategy of aero-engines and gas turbines for gas turbine product development is promoted, basic research, technology and product research and development and industrial systems of autonomous innovation of aero-engines and gas turbines are firmly established by various scientific research institutes, and a high-speed hydraulic dynamometer is a necessary dynamometer and power consumption device for verifying the performance of the gas turbine.

The high-power high-speed hydraulic dynamometer is used as a key corollary device for a gas turbine test, has the advantages of high measurement precision, sensitive response, strong operation capability, good maintainability and the like, and becomes an essential means for the development, durability test and performance test after repair of gas turbines for aircraft engines and ships.

The high-power hydraulic dynamometer sold in the market at present needs to be subjected to power consumption and measurement after an engine is decelerated through a reduction gear box, so that the whole power consumption and measurement equipment are multiple, and the system is complex. Because of the requirement of absorbing power, the hydraulic dynamometer has the disadvantages of large volume, heavy weight, high power starting point, complex whole dynamometer system, indirect measurement, low precision, low regulation rate, large system inertia, insensitive reaction, inconvenient disassembly and maintenance and high requirement on test matching.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a high-power high-speed water conservancy dynamometer for engine power consumption and detection is a novel engine power detection device, and it can direct hookup engine output end, greatly simplifies the system, reduces the intermediate link, improves efficiency of software testing, has that measurement accuracy is high, the response is sensitive, the operating capability is strong, the maintainability is good etc. good performance. The utility model discloses it is not enough to current water conservancy dynamometer technique, has designed a small, and absorbed power is big, and the rotational speed is high, and accommodation is wide, and easy the maintenance overhauls longe-lived water conservancy dynamometer, can improve engine test accuracy and efficiency greatly, has high engineering using value.

The utility model has the main technical scheme that: a high-power high-speed hydraulic dynamometer comprises a stator, a rotor, a guide ring, a shell, an end cover, a water seal, an oil seal, a bearing seat support, a main shaft, a coupling, an oil pan, a water inlet valve and a water drain valve; the main shaft is used for transmitting the power of an engine, a certain amount of rotors, a water seal, an oil seal and a stainless steel sleeve are arranged on the main shaft in an interference fit mode, the two rotors are arranged on the main shaft opposite to the stator, and the angle of a rotor impeller is 45 degrees; the two stators are fixed on the inner side of the shell and positioned close to the center of the inner side of the rotor; the angle of the stator impeller is 45 degrees with the axis bearing and is opposite to the rotor blade, and the cavity of the stator impeller is semi-elliptical; two relatively independent water cavities are formed by the front set of rotor, the rear set of rotor, the stator and the guide ring; the guide ring is fixed on the inner side of the shell, is radially positioned on the outer side of the rotor, forms a water cavity together with the rotor and the stator, and is a main body of the hydraulic dynamometer for absorbing power.

Preferably, a stainless steel sleeve is coated at the contact part of the main shaft and water between the two rotors, so that the main shaft is prevented from being rusted due to long-time operation when the hydraulic dynamometer runs at high power and high rotating speed, and the service life of the main shaft is prolonged.

Preferably, two side discs are arranged on two sides of the shell, a groove is formed in the side discs and used for installing a sealing ring (gasket), and the side discs and the shell form a sealing inner cavity of the hydraulic dynamometer.

Preferably, the spindle further comprises a bearing support at each of two ends of the spindle, a sliding bearing with a thrust is arranged in the input end bearing support, a sliding bearing is arranged in the free end bearing support, and the two bearings use an integrated sliding bearing or a split sliding bearing, so that the bearings are more convenient to mount and the spindle is more convenient to mount, and the service life is longer.

Preferably, the water seal is arranged at the lower part of the shell, a peripheral drainage groove is arranged, and when the hydraulic dynamometer runs full of water or the water level exceeds the design standard water level, the drainage groove is used for outwards draining water under the condition that the water seal cannot be tightly sealed, so that the water cannot flow into other areas of the hydraulic dynamometer.

Preferably, the hydraulic dynamometer further comprises a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are arranged at the opposite position of the shell, on the left and right sides or up and down, and water stabilizers are arranged at the water inlet and the water outlet, so that the stability of an internal flow field is facilitated when the hydraulic dynamometer operates, and the hydraulic dynamometer can better adapt to the operation of the hydraulic dynamometer at high power and high rotating speed.

Preferably, the hydraulic dynamometer further comprises a coupling at each of two ends, and when the forward and reverse rotation switching is needed, the mounting direction of the hydraulic dynamometer is reversed, and effective switching of different rotation directions is achieved.

Preferably, the hydraulic dynamometer integrates a centralized control box, and the front ends of electric signals such as the rotating speed, the torque, the temperature and the pressure of the hydraulic dynamometer are collected and processed and then transmitted to a control cabinet through a cable and an Ethernet, so that local and remote control is realized.

Preferably, the hydraulic dynamometer integrates a vibration monitoring system, and the vibration monitoring system can monitor horizontal, vertical and axial vibration of a bearing of the hydraulic dynamometer in real time, is used for judging the operation condition of the hydraulic dynamometer and can better adapt to high-power and high-rotation-speed operation of the hydraulic dynamometer.

Preferably, the rotor, the stator and the guide ring are made of duplex stainless steel materials, and have the characteristics of higher hardness, high corrosion resistance, high cavitation resistance, high weldability and the like of the same materials.

The utility model relates to a novel engine power detection device, it has a hydraulic dynamometer of excellent properties such as measurement accuracy height, response sensitivity, operational capability are strong, maintainability is good.

The main shaft is used for transmitting the power of an engine, and a stainless steel sleeve is coated at the contact part (the middle of a stator) of the main shaft and water, so that the main shaft is prevented from being rusted due to long-time operation, and the service life of the main shaft is prolonged.

The two rotors are arranged on the main shaft opposite to the stator, and the angle of the impeller of the rotors is 45 degrees, so that the hydraulic dynamometer has a larger power absorption characteristic and can better adapt to the high-power and high-rotation-speed operation of the hydraulic dynamometer.

The angle of the stator impeller is 45 degrees with the axis bearing and is opposite to the rotor blade, and the cavity of the stator impeller is semi-elliptical, so that the hydraulic dynamometer has a larger absorption power characteristic and can better adapt to the high-power and high-rotation-speed operation of the hydraulic dynamometer. The front and back sets of rotors, stators (stators) and guide rings construct two relatively independent water cavities.

The two guide rings are fixed on the inner side of the shell, are positioned on the outer side of the rotor, and form a main body of absorption power of the hydraulic dynamometer together with the rotor and the stator. The double-phase stainless steel material is adopted, and has the characteristics of high corrosion resistance, high cavitation resistance, high weldability and the like. The water outlet edge is reserved in the outer diameter direction of the stator (stator) and the stator, so that the water outlet edge can better adapt to the high-power and high-rotating-speed operation of the hydraulic dynamometer.

The hydraulic dynamometer shell is internally provided with a stator, a guide ring and other components, a calibration arm (beam) for calibrating the hydraulic dynamometer and a measurement arm (beam) for measuring the torque of the hydraulic dynamometer are arranged on the side of the hydraulic dynamometer shell, the calibration arm (beam) and the measurement arm (beam) are symmetrically arranged, the hydraulic dynamometer shell has great rigidity, and the calibration and measurement accuracy is ensured to the maximum extent.

The two bearings of the hydraulic dynamometer supporting main shaft select an integrated sliding bearing or a distinguishing sliding bearing according to actual use conditions, so that the installation of the bearings and the installation of the main shaft are more convenient, and the service life is longer. One of the bearings is a thrust bearing, which can keep the rotor of the hydraulic dynamometer in axial positioning and absorb axial force. The bearings are lubricated and cooled using a lubricating oil jet.

The water inlet pipe and the water discharge pipe are provided with stabilizers, so that water flowing into and out of the hydraulic dynamometer is uniform and stable, and the hydraulic dynamometer operates more stably.

The rotor, the stator (stator) and the guide ring are subjected to surface protection at the position where cavitation is easy to occur by using common flame spraying, electric arc spraying, plasma spraying, high-speed flame spraying and the like, so that the cavitation resistance of the part where cavitation is easy to occur is improved, the high-power high-rotation-speed operation of the hydraulic dynamometer can be better adapted, and the overhaul life of the high-speed hydraulic dynamometer is better prolonged.

The bearing is lubricated and cooled by lubricating oil injection, and the input side (or free side) of the bearing is provided with a thrust surface, so that the rotor of the hydraulic dynamometer can be kept axially positioned, the axial force is absorbed, and the high-power high-rotation-speed operation of the hydraulic dynamometer can be better adapted.

The main shaft is provided with at least two labyrinth non-contact oil seals, the main body of the main shaft is made of 20# steel and copper (or other steel materials), the top end of the main body is made of tin bronze babbitt alloy, the tin bronze babbitt alloy comprises a plurality of grooves, and the grooves are matched with a water slinging ring arranged on the main shaft, so that a good sealing effect can be achieved. The tin bronze babbitt metal is connected with the parent material by a wedge shape, so that the reliable connection is ensured. In the operation process, along with the rotation of the main shaft, a small amount of water which is not thrown out by the rotor is blocked by the water seal and is discharged to the outer side of the cavity through the sewage discharge pipe.

The coupling is connected with the main shaft through keys and interference connection, and the mounting stability under the high rotating speed and large torque state is ensured.

The casing is provided with a measuring hole for measuring the water pressure in the cavity and a rear end instrument, so that the internal operation condition of the hydraulic dynamometer can be conveniently and fully known when the hydraulic dynamometer operates, the hole detector of the hydraulic dynamometer is checked through the access hole arranged on the surface of the casing, and possible faults can be found and timely processed.

The casing is provided with the compressed air injection port, and when the hydraulic dynamometer operates, a certain amount of compressed air is injected, so that cavitation of the hydraulic dynamometer can be effectively reduced, and the overhaul life of the hydraulic dynamometer is prolonged.

And a sewage discharge communicating pipe is arranged at the bottom of the shell and used for balancing water pressure fluctuation of the front water cavity and the rear water cavity during operation. When the hydraulic dynamometer is stopped, the water stored in the water cavity can be discharged through the blowdown communicating pipe, and no water stored in the hydraulic dynamometer is guaranteed.

The hydraulic dynamometer further includes a bearing for supporting the hydraulic dynamometer oil pan. The hydraulic dynamometer is used as a base of the hydraulic dynamometer, all parts of the hydraulic dynamometer are connected into a whole, and stable support is provided, so that the hydraulic dynamometer is convenient to mount, hoist and the like.

And the inner side of the hydraulic dynamometer oil sump is provided with a hydraulic dynamometer oil tank for storing lubricating oil required by bearing lubrication.

The dynamic balance of the rotor performed by the hydraulic dynamometer needs to be performed after all the components mounted on the main shaft are mounted, so that the accuracy of the dynamic balance of the rotor is ensured, and the stability and the safety of the hydraulic dynamometer during high-speed and high-power operation are ensured.

The utility model discloses engine power detection device, it has excellent properties such as measurement accuracy height, response sensitivity, operating capability are strong, maintainability is good, in particular to hydraulic dynamometer, and this kind of hydraulic dynamometer can be fit for high rotational speed, and big absorbed power grows up and repaiies the life-span, characteristics such as high adaptability have splendid engineering using value.

The utility model discloses a high-power high-speed hydraulic dynamometer has advantages such as measurement accuracy is high, the response is sensitive, the operational capability is strong, the size is compact, maintainability is good, can use in high-power high-rotational-speed fields such as aviation, industrial and marine gas turbine scientific research and equipment test, durability test, the experimental test of repairability. The high-power high-speed hydraulic dynamometer mainly comprises a stator, a rotor, a guide ring, a shell, an end cover, a water seal, an oil seal, a bearing seat support, a main shaft, a coupling, an oil pan, a water inlet valve, a water drain valve, a centralized control box, a vibration monitoring system and the like. The absorbed power is increased or decreased in proportion to the amount of water flowing through the rotor, and the adjustment of the absorbed power is controlled by the intake/discharge control valve. The high-speed hydraulic dynamometer is integrated with a centralized control box (a line concentration cabinet) and a vibration monitoring system, can display the running condition of the hydraulic dynamometer on site and remotely, and can evaluate the state of the hydraulic dynamometer. Through the reasonable design of the working water cavity, the rotor stator (stator) and the guide ring, the cavitation erosion resistant part protective layer spraying of the erosion resistant part and abundant interfaces ensure the stable and safe operation of the high-power high-speed hydraulic dynamometer.

Drawings

FIG. 1 is a schematic diagram of the high-power high-speed hydraulic dynamometer of the present invention;

FIG. 2 is a schematic view of the spindle mounting and dynamic balancing of a high-power high-speed hydraulic dynamometer;

FIG. 3 is a high power high speed hydraulic dynamometer rotor diagram;

FIG. 4 is a high power high speed hydraulic dynamometer stator (stator) schematic;

FIG. 5 is a high power high speed hydraulic dynamometer housing schematic;

FIG. 6 is a schematic diagram of a high power high speed hydraulic dynamometer sump;

FIG. 7 is a high power high speed hydraulic dynamometer water stabilizer diagram;

FIG. 8 is a schematic diagram of a high-power high-speed hydraulic dynamometer hub box;

FIG. 9 is a schematic diagram of a vibration monitoring system of the high-power high-speed hydraulic dynamometer;

FIG. 10 is a high power high speed hydraulic dynamometer coupling diagram (two versions);

in the figure, 1-main shaft, 2-main bearing oil seal, 3-bearing seat, 4-side disc, 5-shell, 6-stator, 7-guide ring, 8-rotor, 9-self-defining bearing, 10-bearing, 11-drainage, 12-stainless steel sleeve and 13-coupling.

Detailed Description

The utility model discloses a high-power high-speed water conservancy dynamometer, the produced load of engine transmit to high-speed water conservancy dynamometer main shaft through the shaft coupling, and the main shaft drives the rotor rotation, and the water that the rotor drove the water intracavity is at the water intracavity that comprises stator and guide ring high-speed flow, because water constantly changes speed and direction in the flow and produces kinetic energy to transmit to the casing through stator (stator), produce the moment of torsion of water dynamometer from this. Water in the water cavity enters the water inlet channel from the water inlet of the hydraulic dynamometer, then enters the working water cavity through the water inlets on the stator blades, and along with the rotation of the rotor, the water in the water cavity is stirred by the rotor and the stator (stator) to generate a water vortex, so that the hydraulic dynamometer is formed to absorb the load of the engine. FIG. 1 is a schematic diagram of a high-power high-speed hydraulic dynamometer. The relative position relation of all parts of the high-power high-speed hydraulic dynamometer and the movement of water flow in the hydraulic dynamometer are shown.

As shown in figure 1, a protective sleeve made of a stainless steel sleeve is arranged in the middle of the main shaft, so that cavitation and water corrosion are reduced, and the service life is prolonged.

The load absorbed by the hydraulic dynamometer is determined by the amount of water in the water chamber. The water quantity in the water cavity is adjusted through the water inlet and outlet amount (the opening degree of the water inlet and outlet valve), and the heat generated by the water vortex in the water cavity of the hydraulic dynamometer is ensured to be discharged in time.

The support of the hydraulic dynamometer shell is supported by a self-centering bearing (shown in figure 1), and the self-centering bearing can ensure that the shell component can move flexibly and ensure the accuracy of torque transmission.

Before the hydraulic dynamometer is integrally assembled, high-precision dynamic balance needs to be carried out on the main shaft and parts arranged on the main shaft so as to ensure stable and safe operation of the high-speed hydraulic dynamometer. FIG. 2 is a schematic diagram of high-precision dynamic balance of a rotating part of a high-power high-speed hydraulic dynamometer.

Fig. 3 is a schematic diagram of a rotor of a high-power high-speed hydraulic dynamometer, which is made of a cavitation-resistant duplex stainless steel material, and an included angle of an impeller (blade) relative to a rotating direction is 45 degrees.

Fig. 4 is a simplified diagram of a stator (stator) of a high-power high-speed hydraulic dynamometer, which is made of a cavitation-resistant duplex stainless steel material, and an impeller (blade) has an included angle of 45 degrees relative to a rotating direction and is opposite to a rotor. The inlet water of the hydraulic dynamometer enters into a working water cavity formed by the rotor, the stator and the guide ring through a water inlet hole on the stator.

In order to improve the cavitation resistance of the cavitation-prone part of the high-power high-speed hydraulic dynamometer, a cavitation-resistant coating is sprayed on the appropriate positions of the cavitation-prone rotor, the cavitation-prone stator (stator) and the guide ring, so that all parts are protected, and the service life is prolonged.

FIG. 5 is a schematic diagram of a high-power high-speed hydraulic dynamometer shell, which adopts a split form to facilitate the disassembly, assembly and maintenance of the hydraulic dynamometer. A water inlet and a water outlet are arranged on the water tank. The bottom of the shell is provided with a balance water gap and a drain outlet relative to the position of the water cavity, so that the pressure of the water cavity can be balanced when the shell runs at high speed and high power, and water is stored in the water cavity when the shell is stopped.

FIG. 6 is a simplified diagram of an oil pan of a high-power high-speed hydraulic dynamometer, which adopts an integrated structure of a support and an oil tank, and simplifies auxiliary system equipment and is convenient to install while ensuring the stability of the support.

The water inlet and outlet of the high-power high-speed hydraulic dynamometer adopts a traditional water inlet mode so as to save installation space. In order to make the water flow entering the hydraulic dynamometer relatively stable and reduce the interference to the operation of the hydraulic dynamometer, a hydraulic dynamometer stabilizer is arranged at the water inlet and outlet (figure 7).

The control signals of the high-power high-speed hydraulic dynamometer and the output signals of the sensors are collected to the line concentration box and transmitted to the control cabinet through the line concentration box, so that the transmission and installation efficiency is greatly improved, the complexity of signals and lines is avoided, and the principle is shown in figure 8.

When the high-power high-speed hydraulic dynamometer runs, the bearing support and the shell vibration state of the high-power high-speed hydraulic dynamometer need to be continuously monitored so as to judge the running state of the high-power high-speed hydraulic dynamometer, and data are accumulated to be used as a basis for overhaul and service life evaluation. The principle of the vibration monitoring system of the high-power high-speed hydraulic dynamometer is shown in figure 9, and displacement, speed and acceleration type vibration sensors can be arranged at different test points and directions according to different test requirements.

According to different connecting equipment and required disassembly and assembly modes of the high-power high-speed hydraulic dynamometer, the coupling and the main shaft can be in a flat key conical surface interference connection mode and a hydraulic interference transmission torque connection mode, and the flat key conical surface interference connection has higher processing requirement on a joint surface and relatively higher processing difficulty. The hydraulic interference torque transmission has higher requirements on the machined surface, and only needs to use oil pressure to carry out the installation and the disassembly.

The utility model discloses two relative and rotors of dress install on stator outside main shaft, and rotor blade angle is 45 degrees, and the direction is the absorbed power direction, and the rotor adopts duplex stainless steel, has high corrosion-resistant, high anti cavitation, characteristics such as high welding. The angle of the blade (wheel) and the axis bearing are 45 degrees, so that the hydraulic dynamometer is better suitable for high-power and high-rotating-speed operation.

The two stators (stators) are fixed on the inner side of the shell and are positioned close to the center of the inner side of the rotor. The stator is made of duplex stainless steel, and has the characteristics of high corrosion resistance, high cavitation resistance, high weldability and the like. The angle of the stator blade (wheel) is 45 degrees with the axis bearing and is opposite to the rotor blade, so that the high-power high-rotating-speed operation of the hydraulic dynamometer can be better adapted.

The hydraulic dynamometer has a cylindrical shell, on which inner parts such as a stator and a guide ring are mounted, and a calibration arm (beam) for calibrating the hydraulic dynamometer and a measurement arm (beam) for measuring the torque of the hydraulic dynamometer are also mounted.

At least two labyrinth non-contact oil seals are arranged in bearing frames at two ends of a bearing, a main body of the bearing is made of 20# steel and copper base (or other steel materials), the top end of the bearing is made of tin bronze babbitt alloy materials, the tin bronze babbitt alloy materials comprise a plurality of grooves, and oil slingers which are installed on a main shaft in a matched mode can play a good sealing effect. The tin bronze babbitt metal is connected with the parent material by a wedge shape, so that the reliable connection is ensured. In the running process of the hydraulic dynamometer, lubricating oil used for guaranteeing the lubrication of the bearing is always in a lubricating oil cavity. And meanwhile, the leaked lubricating oil is collected and returned to the lubricating oil sump. The sealing device has the characteristics of compact structure, good sealing effect and the like.

The rotor, stator (stator) and guide ring are all coated by common flame, arc, plasma and high-speed flame to improve the anti-cavitation ability of the parts.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A high-power high-speed hydraulic dynamometer is characterized by comprising a stator, a rotor, a guide ring, a shell, an end cover, a water seal, an oil seal, a bearing seat support, a main shaft, a coupling, an oil pan, a water inlet valve and a water drain valve; the main shaft is used for transmitting the power of an engine, a certain amount of rotors, a water seal, an oil seal and a stainless steel sleeve are arranged on the main shaft in an interference fit mode, the two rotors are arranged on the main shaft opposite to the stator, and the angle of a rotor impeller is 45 degrees; the two stators are fixed on the inner side of the shell and positioned close to the center of the inner side of the rotor; the angle of the stator impeller is 45 degrees with the axis bearing and is opposite to the rotor blade, and the cavity of the stator impeller is semi-elliptical; two relatively independent water cavities are formed by the front set of rotor, the rear set of rotor, the stator and the guide ring; the guide ring is fixed on the inner side of the shell, is radially positioned on the outer side of the rotor, forms a water cavity together with the rotor and the stator, and is a main body of the hydraulic dynamometer for absorbing power.

2. The high-power high-speed hydraulic dynamometer according to claim 1, wherein a stainless steel sleeve is coated at the position where the main shaft is contacted with water in the middle of the two rotors.

3. The high-power high-speed hydraulic dynamometer as claimed in claim 1, wherein two side plates are mounted on two sides of the housing, and a groove is formed in the housing for mounting a sealing ring or a sealing gasket, and the sealing ring or the sealing gasket and the housing form a sealing cavity of the hydraulic dynamometer.

4. The high-power high-speed hydraulic dynamometer according to claim 1, further comprising a bearing support at each end of the main shaft, a sliding bearing with a thrust is arranged in the input end bearing support, a sliding bearing is arranged in the free end bearing support, and the two bearings are integrated sliding bearings or split sliding bearings.

5. The high-power high-speed hydraulic dynamometer of claim 1, wherein the water seal is disposed at a lower portion of the housing, and a peripheral drainage groove is formed in the water seal, so that water is drained from the drainage groove when the hydraulic dynamometer is operated in full water or the water level exceeds a design standard water level and the water seal cannot be tightly sealed.

6. The high-power high-speed hydraulic dynamometer according to claim 1, wherein the hydraulic dynamometer further comprises a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are arranged in the opposite position of the shell, left and right or up and down, and water stabilizers are installed at the water inlet and the water outlet.

7. The high power high speed hydraulic dynamometer of claim 1, further comprising a coupling at each end.

8. The high power high speed hydraulic dynamometer of claim 1, wherein the rotor, stator and guide ring are made of duplex stainless steel.

9. The high power high speed hydraulic dynamometer of claim 1, wherein the hydraulic dynamometer is integrated with a centralized control box.

10. The high power high speed hydraulic dynamometer of claim 1, wherein the hydraulic dynamometer incorporates a vibration monitoring system that monitors horizontal, vertical, and axial vibrations of the hydraulic dynamometer bearing in real time for determining the operation of the hydraulic dynamometer.

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