CN114151392B - Automatic measurement and control equipment and method for hydraulic device of hydropower station - Google Patents

Automatic measurement and control equipment and method for hydraulic device of hydropower station Download PDF

Info

Publication number
CN114151392B
CN114151392B CN202111479506.1A CN202111479506A CN114151392B CN 114151392 B CN114151392 B CN 114151392B CN 202111479506 A CN202111479506 A CN 202111479506A CN 114151392 B CN114151392 B CN 114151392B
Authority
CN
China
Prior art keywords
oil
oil tank
groove
floating plate
distance
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.)
Active
Application number
CN202111479506.1A
Other languages
Chinese (zh)
Other versions
CN114151392A (en
Inventor
奚一祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nantong Xutai Automation Equipment Co ltd
Original Assignee
Nantong Xutai Automation Equipment Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nantong Xutai Automation Equipment Co ltd filed Critical Nantong Xutai Automation Equipment Co ltd
Priority to CN202111479506.1A priority Critical patent/CN114151392B/en
Publication of CN114151392A publication Critical patent/CN114151392A/en
Application granted granted Critical
Publication of CN114151392B publication Critical patent/CN114151392B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/26Supply reservoir or sump assemblies
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B9/00Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B19/00Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04Special measures taken in connection with the properties of the fluid
    • F15B21/042Controlling the temperature of the fluid
    • F15B21/0423Cooling
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

The utility model discloses automatic measurement and control equipment for a hydraulic device of a hydropower station, which comprises a base, a groove, an oil tank and a servo motor, wherein the groove is formed in the top of the base, and the oil tank is arranged on the bottom wall of the groove; four groups of fixed sleeves which are arranged at equal intervals are installed at the top of the oil tank, and a servo motor is installed at the top of the oil tank; four groups telescopic cylinder is all installed to fixed sleeve's inner wall, four groups the kickboard is installed to telescopic cylinder's bottom, one of them group the fixed plate is installed to fixed sleeve's outer wall, the top of fixed plate is provided with logical groove, threaded section of thick bamboo is installed to the inner wall that leads to the groove. The oil level monitoring device can monitor the oil level and the oil temperature of oil in an oil tank of the hydraulic device, wherein the oil temperature sensor can correspondingly move up and down according to the oil level, so that the distance between the oil temperature sensor and the liquid level is always kept consistent, the oil pressure is ensured to be consistent, meanwhile, a heating or cooling component can be selectively started according to the oil temperature in the device to adjust the oil temperature, and the device is stably assembled.

Description

Automatic measurement and control equipment and method for hydraulic device of hydropower station
Technical Field
The utility model relates to the technical field of hydraulic devices, in particular to automatic measurement and control equipment and method for a hydraulic device of a hydropower station.
Background
In the hydraulic device, the automatic measurement and control aspect comprises the monitoring of the oil level, the oil temperature and the like of an oil tank in the hydraulic device, when the oil level is too low, a worker needs to be reminded to refuel equipment, otherwise, the oil supply equipment needs to be stopped immediately, and the monitoring of the oil temperature needs to be matched with a corresponding temperature adjusting mechanism to assist the oil to keep the proper service temperature.
The existing automatic measurement and control equipment has the following defects:
1. the patent document CN209195834U discloses a fuel tank for hydraulic equipment, "which comprises a fuel tank main body, wherein the fuel tank main body is arranged below an intersection of oil pipes of the hydraulic equipment; the oil tank main body comprises a top plate, the top plate is provided with an oil guide groove and an oil return opening, the oil guide groove is communicated with the oil return opening, and the oil return opening is communicated with the inside of the oil tank main body; and a filter and a cooling pipe are arranged in the oil tank main body, and the filter is connected with the oil return port. Adopt this application, not only can cool off the hydraulic oil in the oil tank fast, but also can retrieve the hydraulic oil that filters the seepage, reduce the loss of hydraulic oil, avoid the hydraulic oil of seepage to flow into work ground to influence producers' safe operation environment. However, the device does not have the function of measuring and controlling the residual amount of the oil in the oil tank in real time, and workers cannot know the residual amount in time;
2. patent document CN212536278U discloses an engineering machinery oil tank with good heat dissipation and capable of monitoring and early warning oil temperature, which comprises a substrate and a cooling unit; substrate: the upper surface middle part is equipped with the mounting groove, the cooling hole has been seted up to the lower surface of mounting groove, the upper surface that the cooling hole passed the base plate extends to the lower surface of base plate, the lower surface middle part of base plate evenly is equipped with four dead levers, the lower fixed surface connection installation frame of dead lever, the upper surface of installation frame is equipped with the heat dissipation fan, the lower surface four corners of base plate all is equipped with the support column, be equipped with the oil tank in the mounting groove, the oil tank is hollow structure, and this heat dissipation is good can monitor the engineering machine tool oil tank of early warning oil temperature and can carry out better heat dissipation to the engineering machine tool oil tank through cooling unit and heat dissipation fan, can carry out intelligent control to the temperature of engineering machine tool oil tank through temperature sensor, can carry out timely early warning to the temperature of oil tank through the alarm. However, the temperature sensor in the equipment is not in contact with the oil liquid, so that the temperature condition of the oil liquid cannot be accurately measured and controlled;
3. patent document CN203183325U discloses an oil tank for frying medicine machine of fuel oil formula, "observe and control the appearance including main part, level gauge, intelligence single loop, the main part form by the assembly of another equal big or small oil tank, the oil tank is equipped with the apron, the apron intermediate position is equipped with the cover of falling the oil, the positive upper left corner position of box is equipped with the oil inlet, its lower positive lower right corner position is equipped with the oil-out, the inside level gauge that is equipped with of oil tank, the level gauge is observed and control the appearance with the intelligence single loop of oil tank lateral surface and is connected, the oil tank side is equipped with the vent valve. The utility model provides an oil tank for a fuel oil type herbal medicine roaster, which adopts a separated oil tank, effectively prevents the herbal medicine roaster from igniting an oil source due to overhigh working temperature, is firm and durable in a main body made of stainless steel, provides safe working conditions and clean environment, has a simple structure, is convenient to use, and can be widely applied to other types of fuel oil machinery. "however, the temperature of the oil cannot be raised or lowered in time according to the internal oil temperature condition of the equipment, and the oil temperature may not be in a proper range when in use;
4. patent document CN107588825A discloses an appearance is observed and controled to car oil mass, "including observing and controlling appearance body and vehicle mounted terminal, the one end of observing and controlling the appearance body is provided with the main oil tank, the other end of observing and controlling the appearance body is provided with reserve tank, be provided with the fixed axle between main oil tank and the reserve tank, be provided with the second recess on the main oil tank, be provided with first recess on the reserve tank, the internally mounted of first recess and second recess has the heating pipe, the top of first recess is provided with the handle, reserve tank's top is provided with the fixing base, the oil pump is installed to the bottom of fixing base, the bottom of oil pump is provided with takes out oil pipe. This application novel structure, easy and simple to handle, the oil mass situation in the main fuel tank of being convenient for detect through the capacitance measurement chip, when the oil mass was crossed low, reported to the police through alarm module, the car owner of being convenient for in time adds, accessible reserve tank uses with urgency when not filling station simultaneously, and when the temperature crossed low be convenient for through the fuel in the heating pipe heating reserve tank, the normal use of being convenient for. "however, the present apparatus is unstable when left in place and is prone to toppling when subjected to impact.
Disclosure of Invention
The utility model aims to provide automatic measurement and control equipment and method for a hydraulic device of a hydropower station, so as to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: an automatic measurement and control device of a hydraulic device of a hydropower station comprises a base, a groove, an oil tank, a fixed sleeve and a servo motor, wherein the groove is formed in the top of the base, the oil tank is installed on the bottom wall of the groove, and the top of the oil tank extends out of the groove;
the top of the oil tank is provided with four groups of fixed sleeves which are arranged at equal intervals, the bottoms of the fixed sleeves extend into the oil tank, and the top of the oil tank is provided with a servo motor;
four groups a telescopic cylinder is all installed to fixed cylinder's inner wall, and the bottom of telescopic cylinder extends from fixed cylinder's inside, four groups the kickboard is installed to telescopic cylinder's bottom, and one of them is a set of the fixed plate is installed to fixed cylinder's outer wall, the top of fixed plate is provided with logical groove, a screw thread section of thick bamboo is installed to the inner wall that leads to the groove, distance sensor is installed to screw thread section of thick bamboo's bottom, the top of fixed plate is installed and is linked up the post, and links up the inside that the bottom of post extended into screw thread section of thick bamboo.
Preferably, a threaded rod is installed at the bottom of the servo motor through an output shaft, a limiting plate is installed on the outer surface of the threaded rod, a sliding cylinder is installed on the outer surface of the threaded rod, and an oil temperature sensor is installed on the front face of the sliding cylinder.
Preferably, the bottom of oil tank is provided with the notch, the heating device is installed to the roof of notch, the shrouding is installed through the screw thread gomphosis to the inner wall of notch, the bottom of shrouding is provided with four groups of arc wall of evenly arranging.
Preferably, the inner wall of oil tank is provided with the inner chamber layer, one side outer wall of inner chamber layer is provided with the inlet tube, the opposite side outer wall of inner chamber layer is provided with the outlet pipe, the electronic valve is all installed at the top of inlet tube and outlet pipe.
Preferably, the back mounted of base has N type frame, the water-cooling compressor is installed at the top of N type frame, the connecting pipe is installed to the input of water-cooling compressor, the suction pump is installed to the output of water-cooling compressor, the linking pipe is installed to the output of suction pump, the outer surface mounting of water-cooling compressor has the lantern ring, the outer surface mounting of lantern ring has four group's evenly arranged folded plate, and the bottom installation of folded plate and the top laminating of N type frame.
Preferably, the outer walls of the two sides of the oil tank are both provided with embedding grooves, the outer walls of the two sides of the base are both provided with thread grooves, the inner wall of each thread groove is provided with an embedding cylinder, the inner wall of each embedding cylinder is provided with an electric telescopic rod, and one end of each electric telescopic rod extends into the corresponding embedding groove.
Preferably, four groups of square grooves which are uniformly distributed are formed in the bottom of the groove, four groups of pulleys which are uniformly distributed are mounted at the bottom of the oil tank, and the bottoms of the four groups of pulleys extend into the four groups of square grooves respectively.
Preferably, the prompting device is installed at the top of oil tank, and electric connection between prompting device and the distance sensor, the observation window is installed in the front of oil tank, is that the front of oil tank is provided with the scale mark, and the scale mark is located one side of observation window, control panel is installed to one side outer wall of oil tank, the oil feed mouth of pipe is installed at the top of oil tank.
Preferably, the use method of the measurement and control equipment comprises the following working steps:
s1, placing the oil tank in the groove by workers to make the embedding grooves on both sides of the oil tank and the thread grooves on both sides of the base on the same horizontal line, then starting a plurality of groups of electric telescopic rods simultaneously to make the electric telescopic rods extend outwards, and then gradually extending one end of each electric telescopic rod into the embedding groove to increase the firmness of assembly between the oil tank and the base;
s2, enabling the floating plate to always float on the oil surface in the oil tank, monitoring the distance between the floating plate and the lower floating plate in real time through the distance sensor, wherein when the distance between the floating plate and the lower floating plate exceeds a set value, a prompter electrically connected with the distance sensor can send out a voice prompt sound I, and then the prompter is externally connected with an oil supply device through an oil inlet pipe orifice to convey oil liquid to the inside of the oil tank;
s3, in the oil liquid conveying process, the liquid level in the oil tank gradually rises, the height position of the floating plate can be adjusted upwards along with the liquid level at the moment, the distance between the floating plate and the distance sensor is gradually reduced, and when the distance between the floating plate and the distance sensor is smaller than a set value two, the prompter gives out a voice prompt sound two to remind a worker of closing the oil supply equipment;
s4, the distance sensor is electrically connected with the oil temperature sensor, when the distance sensor monitors that the distance between the distance sensor and the floating plate is a numerical value II, the top of the sliding cylinder is attached to the bottom of the limiting plate, then the liquid level of oil in the oil tank is gradually reduced in the using process, at the moment, the servo motor needs to be started, then a threaded rod installed through an output shaft is driven to rotate clockwise, then the sliding cylinder installed on the outer surface of the threaded rod in a threaded embedding mode can drive the oil temperature sensor to gradually move downwards, the oil temperature sensor is always located in the oil, and otherwise, when the liquid level in the oil tank rises, the servo motor needs to drive the output shaft to rotate anticlockwise;
s5, the oil temperature sensor can monitor the temperature condition of the oil in real time, when the temperature is too high, the water pump can be started, the cold water in the water-cooled compressor is conveyed to the inner part of the inner cavity layer through the connecting pipe and the water inlet pipe until the inner part of the inner cavity layer is filled with the cold water, the electronic valve on the outer surface of the water outlet pipe is opened, the used cold water in the inner part of the inner cavity layer is led into the water-cooled compressor again to be refrigerated, and then the used cold water is led into the inner cavity layer again to form circulation for cooling the oil in the oil tank, when the temperature of the oil is too low, the heating device is started, then the heating device can convert the electric energy into heat energy, and then the heat energy is upwards transmitted to the oil through the plate at the top of the heating device to enable the oil to be heated, so that the temperature condition suitable for use is achieved.
Compared with the prior art, the utility model has the beneficial effects that:
1. the comprehensive gravity of the floating plate and the telescopic cylinder connected to the top of the floating plate is smaller than the buoyancy of the floating plate, so that the floating plate can always float on the oil level in the oil tank, when the liquid level in the oil tank rises, the floating plate rises along with the liquid level, and meanwhile, the distance between the floating plate and the lower floating plate is monitored in real time through the distance sensor, when the distance between the floating plate and the floating plate exceeds a set value, a prompter electrically connected with the distance sensor can give out a voice prompt sound I, then the prompter is externally connected with oil supply equipment through an oil inlet pipe orifice to convey oil in the oil tank, and when the distance between the floating plate and the oil inlet pipe orifice is smaller than a set value II, the prompter can give out a voice prompt sound II to indicate that the oil quantity in the oil tank is large at the moment, so as to remind a worker of needing to close the oil supply equipment;
2. in the device, the liquid level in the oil tank gradually rises, and simultaneously, the servo motor is started, an output shaft of the servo motor drives the threaded rod to rotate towards the anticlockwise direction at a speed matched with the rising speed of oil liquid, and then the outer surface of the threaded rod can drive the oil temperature sensor to gradually move upwards through the sliding barrel embedded and installed by threads, so that the oil temperature sensor is always positioned below the liquid level of the oil liquid by a set distance, and the oil temperature sensor is always in a stable state under the pressure value of the oil liquid;
3. in the equipment, whether to start the heating mechanism or the cooling mechanism can be selected according to the actual temperature condition of the oil liquid monitored by the temperature sensor, when the temperature of the oil is too high, the water pump can be started to convey the cold water in the water-cooled compressor to the inner part of the inner cavity layer through the connecting pipe and the water inlet pipe until the inner part of the inner cavity layer is filled with the cold water, the electronic valve on the outer surface of the water outlet pipe is opened to ensure that the used cold water in the inner part of the inner cavity layer is guided into the water-cooled compressor again to refrigerate again and then is guided into the inner cavity layer again to form circulation so as to cool the oil in the oil tank, when the temperature of the oil is too low, the heating device is started, and then the heating device can convert the electric energy into heat energy, then the oil is upwards transferred to the oil through the plate at the top of the oil tank, so that the oil is heated, and the oil can be kept in a temperature state suitable for use;
4. when the oil tank is installed in the equipment, the oil tank is placed in the groove, then one end of the electric telescopic rod is seen to extend into the embedding groove, so that the firmness of assembly between the oil tank and the base is improved, otherwise, when the oil tank is taken down from the base, one end of the electric telescopic rod needs to be gradually separated from the embedding groove, and the firmness of assembly between the oil tank and the base can be improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the fuel tank of the present invention;
FIG. 3 is a schematic view of the installation structure of the fixed sleeve, the telescopic cylinder and the floating plate according to the present invention;
FIG. 4 is a schematic view of the mounting structure of the fixing sleeve, the fixing plate and the threaded cylinder according to the present invention;
FIG. 5 is a schematic view of an installation structure of the threaded rod, the sliding cylinder and the oil temperature sensor of the present invention;
FIG. 6 is a schematic view of the mounting structure of the fuel tank, the heating device and the sealing plate according to the present invention;
FIG. 7 is a schematic view of the structure of the N-shaped frame, the water-cooled compressor and the water pump of the present invention;
FIG. 8 is a schematic view of an installation structure of the base, the engaging cylinder and the electric telescopic rod of the present invention.
In the figure: 1. a base; 2. a groove; 3. an oil tank; 4. fixing the sleeve; 5. a servo motor; 6. a telescopic cylinder; 7. a floating plate; 8. a fixing plate; 9. a threaded barrel; 10. a distance sensor; 11. connecting the column; 12. a threaded rod; 13. a limiting plate; 14. a slide cylinder; 15. an oil temperature sensor; 16. a notch; 17. a heating device; 18. closing plates; 19. an arc-shaped slot; 20. an inner cavity layer; 21. a water inlet pipe; 22. a water outlet pipe; 23. an N-shaped frame; 24. a water-cooled compressor; 25. a water pump; 26. a collar; 27. folding a plate; 28. a thread groove; 29. a fitting cylinder; 30. an electric telescopic rod; 31. a square groove; 32. a pulley; 33. a prompter; 34. an observation window; 35. scale marks.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Example one
As shown in fig. 2, 3 and 4, the automatic measurement and control equipment for the hydraulic device of the hydropower station comprises a base 1, a groove 2, an oil tank 3, a fixed sleeve 4 and a servo motor 5, wherein the groove 2 is formed in the top of the base 1, the oil tank 3 is installed on the bottom wall of the groove 2, and the top of the oil tank 3 extends out of the groove 2;
specifically, base 1 provides for oil tank 3 and places the region, and base 1's bottom and place and can be in fixed connection state between the ground, later place oil tank 3 in the inside of recess 2 to make the gomphosis groove of oil tank 3 both sides and the thread groove 28 that base 1 both sides set up be in same water flat line, make things convenient for extension of follow-up electric telescopic handle 30, oil tank 3 is used for the required fluid that uses of storage hydraulic means.
Four groups of fixed sleeves 4 which are arranged at equal intervals are arranged at the top of the oil tank 3, the bottoms of the fixed sleeves 4 extend into the oil tank 3, and a servo motor 5 is arranged at the top of the oil tank 3;
specifically, the inside of the fixed sleeve 4 is in a hollow state, so that the telescopic cylinder 6 can be conveniently retracted into the hollow state, the comprehensive length between the fixed sleeve 4 and the telescopic cylinder 6 is in a shortest state, and after the servo motor 5 is started, an output shaft of the servo motor can drive the threaded rod 12 to rotate at a set rotating speed in a clockwise or anticlockwise direction.
A telescopic cylinder 6 is all installed to the inner wall of four groups of fixed sleeves 4, and the bottom of a telescopic cylinder 6 extends from the inside of fixed sleeve 4, and kickboard 7 is installed to the bottom of four groups of telescopic cylinders 6, and wherein fixed plate 8 is installed to the outer wall of a set of fixed sleeve 4, and the top of fixed plate 8 is provided with logical groove, and threaded section of thick bamboo 9 is installed to the inner wall that leads to the groove, and distance sensor 10 is installed to the bottom of threaded section of thick bamboo 9, and the top of fixed plate 8 is installed and is linked up post 11, and the bottom that links up post 11 extends the inside that gets into threaded section of thick bamboo 9.
Specifically, the combined gravity of the floating plate 7 and the telescopic cylinder 6 connected to the top of the floating plate is smaller than the buoyancy of the floating plate, so that the floating plate 7 can always float on the oil surface inside the oil tank 3, when the liquid level inside the oil tank 3 rises, the floating plate 7 rises along with the rising, then the telescopic cylinder 6 can generate upward thrust to enable the telescopic cylinder 6 to contract the length of the telescopic cylinder 6 inwards, similarly, when the floating plate 7 moves downwards along with the liquid level, the telescopic cylinder 6 can generate downward tension to the telescopic cylinder 6 to prolong the combined length of the telescopic cylinder 6, at the moment, the telescopic cylinder 6 can be used for unfolding the floating plate 7 and to limit the floating plate 7 to a certain extent, so that the phenomenon that the floating plate 7 turns over when the oil tank 3 takes oil, the fixed plate 8 provides a stable installation area for the threaded cylinder 9, wherein the threaded cylinder 9 provided with the distance sensor 10 is inserted into the through groove from bottom to top, and then the connecting column 11 can be aligned with the top of the threaded cylinder 9, then, a rotating force in a set direction is applied to the connecting column 11 to enable the connecting column and the threaded cylinder 9 to be assembled in a threaded embedding mode, the distance sensor 10 can monitor the distance between the distance sensor and the lower floating plate 7 in real time, when the distance between the distance sensor and the lower floating plate exceeds a set value, the prompter 33 electrically connected with the distance sensor 10 can give a first voice prompt sound, and when the distance is smaller than a second set value, the prompter 33 can give a second voice prompt sound.
Example two
As shown in fig. 2 and 5, a threaded rod 12 is mounted at the bottom of the servo motor 5 through an output shaft, a limiting plate 13 is mounted on the outer surface of the threaded rod 12, a sliding cylinder 14 is mounted on the outer surface of the threaded rod 12, and an oil temperature sensor 15 is mounted on the front surface of the sliding cylinder 14.
Specifically, when the threaded rod 12 is driven by the servo motor 5 to rotate, the sliding cylinder 14 mounted on the outer surface of the threaded rod through the embedded threads can drive the oil temperature sensor 15 to move downwards or upwards step by step, so that the oil temperature sensor 15 is always located in oil, the situation that the oil temperature sensor 15 is located above the oil can be effectively avoided, the contact between the oil temperature sensor and the oil temperature sensor is lacked, the oil temperature sensor 15 cannot monitor the temperature situation of the oil, meanwhile, the situation that the oil temperature sensor 15 is located at the lowest part of the oil and is subjected to large pressure can be avoided.
EXAMPLE III
As shown in fig. 1, 2, 6 and 7, the bottom of the oil tank 3 is provided with a notch 16, a heating device 17 is mounted on the top wall of the notch 16, a sealing plate 18 is mounted on the inner wall of the notch 16 through threaded engagement, and four sets of arc-shaped grooves 19 are uniformly arranged on the bottom of the sealing plate 18.
Concretely, notch 16 sets up to provide installation space for heating device 17, wherein heating device 17 starts the back, it can become heat energy with the electric energy conversion, then the plate through its top upwards transmits to fluid department, in order to make fluid heat up, link up through the screw gomphosis between 18 surplus notches 16 of shrouding, possess detachability between the two, then for heating device 17's maintenance and change provide convenience, four sets of arc-shaped grooves 19 set up can make the bottom of shrouding 18 be the cross shape, the convenient turning force that applys to shrouding 18, after 18 surplus oil tanks 3 of shrouding assemble, can completely cut off heating device 17 in notch 16's inside, avoid it to receive external disturbance.
The inner wall of oil tank 3 is provided with inner chamber layer 20, and one side outer wall of inner chamber layer 20 is provided with inlet tube 21, and the opposite side outer wall of inner chamber layer 20 is provided with outlet pipe 22, and the electronic valve is all installed at the top of inlet tube 21 and outlet pipe 22.
The back surface of the base 1 is provided with an N-shaped frame 23, the top of the N-shaped frame 23 is provided with a water-cooling compressor 24, the input end of the water-cooling compressor 24 is provided with a connecting pipe, the output end of the water-cooling compressor 24 is provided with a water suction pump 25, the output end of the water suction pump 25 is provided with a connecting pipe, the outer surface of the water-cooling compressor 24 is provided with a lantern ring 26, the outer surface of the lantern ring 26 is provided with four groups of folded plates 27 which are uniformly arranged, and the bottoms of the folded plates 27 are attached to the top of the N-shaped frame 23.
Specifically, the inner cavity layer 20 has a certain space for loading cold water, the temperature of the cold water can be directly transmitted to the oil inside the oil tank 3 through the inner plate thereof for neutralizing the temperature of the oil, the water inlet pipe 21 is connected with the water pump 25 through the connecting pipe, when the temperature of the oil is too high, the water pump 25 is started to deliver the cold water in the water-cooled compressor 24 to the interior of the inner cavity layer 20 through the connecting pipe and the water inlet pipe 21 until the interior of the inner cavity layer 20 is filled with the cold water, the electronic valve on the outer surface of the water outlet pipe 22 is opened to enable the used cold water in the inner cavity layer 20 to be reintroduced into the water-cooled compressor 24 for refrigeration again, and then the cold water is reintroduced into the inner cavity layer 20, thus, a circulation is formed for cooling the oil inside the oil tank 3, and the collar 26 and the flap 27 are integrally installed, which can be used for increasing the stability of the water-cooled compressor 24 placed on the N-shaped frame 23.
Example four
As shown in fig. 2 and 8, both side outer walls of the oil tank 3 are provided with fitting grooves, both side outer walls of the base 1 are provided with thread grooves 28, a fitting cylinder 29 is mounted on an inner wall of the thread groove 28, an electric telescopic rod 30 is mounted on an inner wall of the fitting cylinder 29, and one end of the electric telescopic rod 30 extends into the fitting grooves.
Specifically, the internal thread of the thread groove 28 is consistent with the thread arranged on the outer surface of the embedding cylinder 29, and the two can be assembled through thread embedding, so that the electric telescopic rod 30 and the base 1 can be disassembled, after the electric telescopic rod 30 is started, the electric telescopic rod can correspondingly extend outwards or perhaps contract inwards, when the oil tank 3 is placed in the groove 2, one end of the electric telescopic rod 30 is seen to extend into the embedding groove, so as to increase the firmness of the assembly between the oil tank 3 and the base 1, otherwise, when the oil tank 3 is taken down from the base 1, one end of the electric telescopic rod 30 needs to be gradually separated from the embedding groove.
Four sets of uniformly arranged square grooves 31 are provided at the bottom of the groove 2, four sets of uniformly arranged pulleys 32 are mounted at the bottom of the oil tank 3, and the bottoms of the four sets of pulleys 32 extend into the interior of the four sets of square grooves 31, respectively.
Specifically, the arrangement of the square groove 31 provides a placing space for the pulley 32, and the pulley 32 facilitates the movement of the oil tank 3.
Prompting device 33 is installed at the top of oil tank 3, and electric connection between prompting device 33 and distance sensor 10, and observation window 34 is installed in the front of oil tank 3, is that the front of oil tank 3 is provided with scale mark 35, and scale mark 35 is located one side of observation window 34, and control panel is installed to one side outer wall of oil tank 3, and the oil feed mouth of pipe is installed at the top of oil tank 3.
The prompter 33 can send out different prompting sounds under different conditions so as to remind workers according to different conditions, and the arrangement of the observation window 34 and the scale marks 35 is convenient for the workers to visually know the residual amount of the oil in the oil tank 3.
Specifically, the using method of the measurement and control equipment comprises the following working steps:
s1, placing the oil tank 3 in the groove 2 by an operator to make the embedding grooves on both sides of the oil tank and the thread grooves 28 on both sides of the base 1 on the same horizontal line, then simultaneously starting the multiple groups of electric telescopic rods 30 to make the electric telescopic rods extend outwards, and then gradually extending one end of each electric telescopic rod into the embedding groove to increase the firmness of the assembly between the oil tank 3 and the base 1;
s2, the gravity of the floating plate 7 and the gravity of the top part of the floating plate 7 are smaller than the buoyancy of the floating plate, so that the floating plate 7 always floats on the oil surface in the oil tank 3, the distance between the floating plate 7 and the lower part of the floating plate can be monitored in real time through the distance sensor 10, when the distance between the floating plate and the lower part of the floating plate exceeds a set value, the prompter 33 electrically connected with the distance sensor 10 can make a voice prompt sound I, and then the prompter is externally connected with an oil supply device through an oil inlet pipe orifice to convey oil liquid in the oil tank 3;
s3, in the oil liquid conveying process, the liquid level inside the oil tank 3 gradually rises, the height position of the floating plate 7 can be adjusted upwards along with the liquid level at the moment, the distance between the floating plate and the distance sensor 10 is gradually reduced, and when the distance between the floating plate and the distance sensor is smaller than a set value two, the prompter 33 gives out a voice prompt sound two to remind a worker of closing the oil supply equipment;
s4, the distance sensor 10 is electrically connected with the oil temperature sensor 15, when the distance between the distance sensor 10 and the floating plate 7 is monitored to be a numerical value II, the top of the sliding cylinder 14 is attached to the bottom of the limiting plate 13, then the liquid level of oil in the oil tank 3 gradually drops in the using process, the servo motor 5 needs to be started, then the threaded rod 12 installed through the output shaft is driven to rotate in the clockwise direction, then the sliding cylinder 14 installed on the outer surface of the threaded rod 12 through threaded embedding can drive the oil temperature sensor 15 to gradually move downwards, the oil temperature sensor 15 is enabled to be always located in the oil, and on the contrary, when the liquid level in the oil tank 3 rises, the servo motor 5 needs to drive the output shaft to rotate anticlockwise;
s5, the oil temperature sensor 15 can monitor the temperature of the oil in real time, when the temperature is too high, the water pump 25 can be started to convey the cold water in the water-cooled compressor 24 to the inner part of the inner cavity layer 20 through the connecting pipe and the water inlet pipe 21 until the inner part of the inner cavity layer 20 is filled with the cold water, the electronic valve on the outer surface of the water outlet pipe 22 is opened to promote the cold water used in the inner part of the inner cavity layer 20 to be guided into the water-cooled compressor 24 again for refrigeration, and then the cold water is guided into the inner cavity layer 20 again to form circulation for cooling the oil in the oil tank 3, when the temperature of the oil is too low, the heating device 17 is started, then the heating device 17 can convert the electric energy into heat energy, and then the heat energy is transmitted to the oil through the plate on the top of the oil upwards to promote the temperature of the oil to reach the temperature state suitable for use.
The working principle is as follows: in the device, the floating plate 7 can move up and down along with the liquid level of oil in the oil tank 3, meanwhile, the distance between the floating plate 7 and the lower floating plate can be monitored in real time through the distance sensor 10, when the distance between the floating plate and the lower floating plate exceeds a set value, the prompter 33 electrically connected with the distance sensor 10 can send a voice prompt sound I, then, the oil supply device is externally connected with an oil inlet pipe orifice to convey oil in the oil tank 3, at the moment, the liquid level in the oil tank 3 gradually rises, meanwhile, the servo motor 5 is started, an output shaft of the servo motor drives the threaded rod 12 to rotate towards the anticlockwise direction according to the speed matched with the rising speed of the oil, then, the outer surface of the threaded rod 12 can drive the oil temperature sensor 15 to gradually move upwards through the sliding cylinder 14 installed in a threaded embedding manner, so that the oil temperature sensor 15 is always located at the set distance below the liquid level of the oil, and further, the pressure value of the oil temperature sensor 15 can be always in a stable state, when the distance sensor 10 monitors that the distance between the distance sensor and the floating plate 7 is smaller than a set value two, the prompter 33 can send out a voice prompt sound two and simultaneously disconnect the oil supply operation of the oil supply equipment, the oil temperature sensor 15 in the equipment can monitor the temperature condition of the oil liquid in real time, wherein the heating device 17, the water-cooled compressor 24 and the water suction pump 25 can be selectively started according to the oil temperature to respectively heat and cool the oil liquid in the oil tank 3, so that the oil liquid can be kept in a proper temperature range.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (9)

1. The utility model provides an automatic measurement and control equipment of power station hydraulic means, includes base (1), recess (2), oil tank (3), fixed sleeve (4) and servo motor (5), its characterized in that: the top of the base (1) is provided with a groove (2), the bottom wall of the groove (2) is provided with an oil tank (3), and the top of the oil tank (3) extends out of the groove (2);
four groups of fixed sleeves (4) which are arranged at equal intervals are installed at the top of the oil tank (3), the bottoms of the fixed sleeves (4) extend into the oil tank (3), a servo motor (5) is installed at the top of the oil tank (3), and a prompter (33) is installed at the top of the oil tank (3);
telescopic cylinders (6) are installed on the inner walls of the four groups of fixed sleeves (4), the bottoms of the telescopic cylinders (6) extend out of the inner parts of the fixed sleeves (4), floating plates (7) are installed at the bottoms of the telescopic cylinders (6), one group of floating plates (7) are installed on the outer walls of the fixed sleeves (4), through grooves are formed in the tops of the fixed plates (8), threaded cylinders (9) are installed on the inner walls of the through grooves, distance sensors (10) are installed at the bottoms of the threaded cylinders (9), the floating plates (7) and the telescopic cylinders (6) connected to the tops of the floating plates are smaller than buoyancy of the floating plates, so that the floating plates (7) always float on the inner oil surface of the oil tank (3), the distance sensors (10) can monitor the distance between the floating plates (7) below in real time, and linking columns (11) are installed at the tops of the fixed plates (8), and the bottom of the connecting column (11) extends into the interior of the threaded cylinder (9), and the prompter (33) is electrically connected with the distance sensor (10).
2. The automatic measurement and control equipment of the hydraulic device of the hydropower station according to claim 1, characterized in that: the bottom of servo motor (5) installs threaded rod (12) through the output shaft, the surface mounting of threaded rod (12) has limiting plate (13), the surface mounting of threaded rod (12) has smooth section of thick bamboo (14), oil temperature sensor (15) are installed in the front of smooth section of thick bamboo (14).
3. The automatic measurement and control equipment of the hydraulic device of the hydropower station according to claim 2, characterized in that: the bottom of oil tank (3) is provided with notch (16), heating device (17) are installed to the roof of notch (16), shrouding (18) are installed through the screw thread gomphosis to the inner wall of notch (16), the bottom of shrouding (18) is provided with arc groove (19) that four groups were evenly arranged.
4. The automatic measurement and control equipment of the hydraulic device of the hydropower station according to claim 3, characterized in that: the inner wall of oil tank (3) is provided with inner chamber layer (20), one side outer wall of inner chamber layer (20) is provided with inlet tube (21), the opposite side outer wall of inner chamber layer (20) is provided with outlet pipe (22), the electronic valve is all installed at the top of inlet tube (21) and outlet pipe (22).
5. The automatic measurement and control equipment of the hydraulic device of the hydropower station according to claim 4, characterized in that: the back mounted of base (1) has N type frame (23), water-cooling compressor (24) are installed at the top of N type frame (23), the connecting pipe is installed to the input of water-cooling compressor (24), suction pump (25) are installed to the output of water-cooling compressor (24), the linking pipe is installed to the output of suction pump (25), the surface mounting of water-cooling compressor (24) has lantern ring (26), the surface mounting of lantern ring (26) has four group's evenly arranged folded plate (27), and the bottom installation of folded plate (27) is laminated with the top of N type frame (23).
6. The automatic measurement and control equipment of the hydraulic device of the hydropower station according to claim 5, characterized in that: the oil tank is characterized in that the outer walls of two sides of the oil tank (3) are provided with embedding grooves, the outer walls of two sides of the base (1) are provided with thread grooves (28), an embedding cylinder (29) is installed on the inner wall of each thread groove (28), an electric telescopic rod (30) is installed on the inner wall of each embedding cylinder (29), and one end of each electric telescopic rod (30) extends into the corresponding embedding groove.
7. The automatic measurement and control equipment of the hydraulic device of the hydropower station according to claim 6, characterized in that: the bottom of recess (2) is provided with four groups of square groove (31) of evenly arranging, four groups of pulleys (32) of evenly arranging are installed to the bottom of oil tank (3), and the bottom of four groups of pulleys (32) extends into the inside in four groups of square groove (31) respectively.
8. The automatic measurement and control equipment of the hydraulic device of the hydropower station according to claim 7, characterized in that: observation window (34) are installed in the front of oil tank (3), and the front of oil tank (3) is provided with scale mark (35), and scale mark (35) are located one side of observation window (34), control panel is installed to one side outer wall of oil tank (3), the oil feed mouth of pipe is installed at the top of oil tank (3).
9. The automatic measurement and control equipment of the hydraulic device of the hydropower station according to claim 8, wherein the use method of the measurement and control equipment comprises the following working steps:
s1, placing the oil tank (3) in the groove (2) by workers to enable the embedding grooves on the two sides of the oil tank and the thread grooves (28) arranged on the two sides of the base (1) to be on the same horizontal line, then simultaneously starting the multiple groups of electric telescopic rods (30) to enable the electric telescopic rods to extend outwards, and enabling one ends of the electric telescopic rods to gradually extend into the embedding grooves to increase the firmness of assembly between the oil tank (3) and the base (1);
s2, the gravity of the floating plate (7) and the gravity of the top part of the floating plate are smaller than the buoyancy of the floating plate, so that the floating plate (7) always floats on the oil surface in the oil tank (3), the distance between the floating plate and the floating plate (7) below the floating plate can be monitored in real time through the distance sensor (10), when the distance between the floating plate and the floating plate exceeds a set value, a prompter (33) electrically connected with the distance sensor (10) can make a voice prompt sound I, and then the prompter is externally connected with an oil supply device through an oil inlet pipe orifice to convey oil liquid in the oil tank (3);
s3, in the oil liquid conveying process, the liquid level inside the oil tank (3) gradually rises, the floating plate (7) can adjust the height position upwards along with the liquid level at the moment, the distance between the floating plate and the distance sensor (10) is gradually reduced, and when the distance between the floating plate and the distance sensor is smaller than a set value two, the prompter (33) sends out a voice prompt sound two to remind a worker of closing the oil supply equipment;
s4, the distance sensor (10) is electrically connected with the oil temperature sensor (15), when the distance sensor (10) monitors that the distance between the distance sensor and the floating plate (7) is a numerical value II, the top of the sliding cylinder (14) is attached to the bottom of the limiting plate (13), then the liquid level of oil in the oil tank (3) gradually drops in the process of using the oil, the servo motor (5) needs to be started at the moment, then the threaded rod (12) installed through the output shaft is driven to rotate clockwise, then the sliding cylinder (14) installed on the outer surface of the threaded rod (12) through threaded embedding can drive the oil temperature sensor (15) to gradually move downwards, the oil temperature sensor (15) is enabled to be always located in the oil, and on the contrary, when the liquid level in the oil tank (3) rises, the servo motor (5) needs to drive the output shaft to rotate anticlockwise;
s5, the oil temperature sensor (15) can monitor the temperature condition of the oil liquid in real time, when the temperature is overhigh, the water pump (25) can be started, the cold water in the water-cooled compressor (24) is conveyed to the interior of the inner cavity layer (20) through the connecting pipe and the water inlet pipe (21) until the interior of the inner cavity layer (20) is filled with the cold water, the electronic valve on the outer surface of the water outlet pipe (22) is opened to ensure that the used cold water in the inner cavity layer (20) is reintroduced into the interior of the water-cooled compressor (24) for refrigeration again and then is reintroduced into the inner cavity layer (20) to form circulation for cooling the oil liquid in the oil tank (3), when the temperature of the oil is too low, the heating device (17) is started, and then the heating device (17) can convert the electric energy into the heat energy, then the oil is transferred to the oil through the plate at the top of the oil tank, so that the oil is heated to reach a temperature state suitable for use.
CN202111479506.1A 2021-12-06 2021-12-06 Automatic measurement and control equipment and method for hydraulic device of hydropower station Active CN114151392B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111479506.1A CN114151392B (en) 2021-12-06 2021-12-06 Automatic measurement and control equipment and method for hydraulic device of hydropower station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111479506.1A CN114151392B (en) 2021-12-06 2021-12-06 Automatic measurement and control equipment and method for hydraulic device of hydropower station

Publications (2)

Publication Number Publication Date
CN114151392A CN114151392A (en) 2022-03-08
CN114151392B true CN114151392B (en) 2022-07-22

Family

ID=80452895

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111479506.1A Active CN114151392B (en) 2021-12-06 2021-12-06 Automatic measurement and control equipment and method for hydraulic device of hydropower station

Country Status (1)

Country Link
CN (1) CN114151392B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116419515B (en) * 2023-03-04 2023-10-13 南通旭泰自动化设备有限公司 Switch protection device for high-voltage circuit and use method thereof
CN116712745B (en) * 2023-06-12 2024-07-09 安徽益沣石化有限公司 MTBE feeding buffer tank

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050116526A (en) * 2004-06-08 2005-12-13 현대자동차주식회사 Washer liquid-level gauge using position finding sensor
CN207111548U (en) * 2017-07-27 2018-03-16 江苏保利精工机电有限公司 A kind of cooled hydraulic station
CN209727219U (en) * 2018-12-20 2019-12-03 徐州瑞马科宝金属制品有限公司 A kind of measuring device of zinc liquid level variation
CN210166018U (en) * 2019-09-05 2020-03-20 大连新兴地下土木工程技术发展有限公司 Subway station foundation pit underground water level real-time supervision device
CN210638787U (en) * 2019-12-12 2020-05-29 青县新叶农业有限公司 Oil mass monitoring device for agricultural machinery
CN211458627U (en) * 2019-09-29 2020-09-11 山东鲁翼通用航空有限公司 Aviation agriculture and forestry real time monitoring and spray metering device
CN211526042U (en) * 2019-12-31 2020-09-18 武汉昂赛测控设备有限公司 Movable integrated thin oil station

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3505878B1 (en) * 2017-12-22 2020-10-21 Endress+Hauser Group Services AG Method for detecting the tilt of a floating roof floating on a medium stored in a tank

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050116526A (en) * 2004-06-08 2005-12-13 현대자동차주식회사 Washer liquid-level gauge using position finding sensor
CN207111548U (en) * 2017-07-27 2018-03-16 江苏保利精工机电有限公司 A kind of cooled hydraulic station
CN209727219U (en) * 2018-12-20 2019-12-03 徐州瑞马科宝金属制品有限公司 A kind of measuring device of zinc liquid level variation
CN210166018U (en) * 2019-09-05 2020-03-20 大连新兴地下土木工程技术发展有限公司 Subway station foundation pit underground water level real-time supervision device
CN211458627U (en) * 2019-09-29 2020-09-11 山东鲁翼通用航空有限公司 Aviation agriculture and forestry real time monitoring and spray metering device
CN210638787U (en) * 2019-12-12 2020-05-29 青县新叶农业有限公司 Oil mass monitoring device for agricultural machinery
CN211526042U (en) * 2019-12-31 2020-09-18 武汉昂赛测控设备有限公司 Movable integrated thin oil station

Also Published As

Publication number Publication date
CN114151392A (en) 2022-03-08

Similar Documents

Publication Publication Date Title
CN114151392B (en) Automatic measurement and control equipment and method for hydraulic device of hydropower station
CN201828400U (en) Electromagnetic valve and valve body performance detection device for automatic transmission
CN203570758U (en) Automatic control device for hydraulic oil tank
CN2794513Y (en) Dripping pill machine
CN111810494A (en) Hydraulic test bench for automobile solenoid valve
CN205708248U (en) A kind of oil tank control oxygen device automatically
CN202139034U (en) Cooling fluid injection device for electric car
CN101533724B (en) Fully automatic wax oil mixing and canning machine
CN207513973U (en) Novel machine tool hydraulic pumping plant
CN102507173B (en) High-temperature high-speed heat conduction oil rotary joint test bench
CN209782190U (en) Centralized lubrication pump station for vehicle
CN211994068U (en) Self-suction oil return type mold temperature controller for controlling mold temperature
CN208920659U (en) Full-automatic block ice machine
CN207502120U (en) Marine internal combustion engine housing underwater sealing detection device
CN102261754B (en) Automatic liquid supplementing device and maintenance reminding method for automatic liquid supplementing device
CN214063123U (en) Automatic water replenishing device for internal combustion engine
CN214130408U (en) Metering device for adding defoaming agent
CN221215492U (en) Asphalt warehouse liquid level height monitoring and alarming system
CN219008755U (en) Vertical heat preservation storage tank of hangers
CN216154591U (en) Overcharge protection device for low-temperature liquid storage tank
CN203547879U (en) Cooling fan driving device for internal combustion locomotive
CN213492025U (en) Automatic control type multifunctional reflux extraction and concentration unit
CN221810870U (en) Low-temperature oil supply system for shelter power station and shelter power station
CN115831403B (en) Cooling spray protection device for nuclear power station voltage stabilizer
CN221350413U (en) Pressure-resistant test equipment for sea-fresh water heat exchanger

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant