CN112594236B - Coal integrated liquid supply system and self-generating system and method of high-pressure filtering station thereof - Google Patents
Coal integrated liquid supply system and self-generating system and method of high-pressure filtering station thereof Download PDFInfo
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- CN112594236B CN112594236B CN202011360080.3A CN202011360080A CN112594236B CN 112594236 B CN112594236 B CN 112594236B CN 202011360080 A CN202011360080 A CN 202011360080A CN 112594236 B CN112594236 B CN 112594236B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/024—Pressure relief valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2220/00—Application
- F05B2220/70—Application in combination with
- F05B2220/706—Application in combination with an electrical generator
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- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The application discloses integrated liquid supply system of coal and self-generating system, method of high pressure filter station thereof, wherein, the system includes: a filter assembly; the liquid supply assembly is used for providing filtered hydraulic medium for electric equipment of the coal working face by utilizing the filtering assembly; a load assembly having one or more load cells; and the power generation assembly is respectively connected with the liquid supply assembly and the load assembly and is used for generating power by using residual hydraulic media except for the supplied electric equipment so as to store residual electric energy while supplying power to the load assembly. The self-generating system of the integrated liquid supply system high-pressure filter station is simple in structure, high in integration level, convenient to assemble and capable of recycling system energy.
Description
Technical Field
The application relates to the technical field of coal, in particular to a coal integrated liquid supply system and a self-generating system and method of a high-pressure filtering station of the coal integrated liquid supply system.
Background
According to the power supply regulation of the coal industry, the strong power supply specification of the coal industry is 1140V and 127V. For intrinsic safety and explosion-proof requirements, the power supply requirements of the working face controller and all the sensor devices are 12V, so that the controller and the power supply devices are converted through the power supply conversion module, the 127V input is adopted, the explosion risk exists, the protective shell of the power box is thick and heavy, the waterproof and dustproof protection level is extremely high, and meanwhile, the improvement of the power supply power is limited. Along with the continuous popularization of automatic working face with the machine, more and more sensing equipment inserts like equipment such as appearance, the comprehensive access ware of making a video recording, leads to power module quantity increase on the one hand, and on the other hand frequently appears the problem that power supply is not enough.
At present, there are many technologies and products for generating electricity through slewing mechanisms such as hydraulic motors, impellers and the like in the market, for example, generators of vehicles, hydroelectric power generation and the like, but the situations that the self-electricity is generated through a high-pressure filtering station in an integrated liquid supply system and is applied to loads in the system are few or even nonexistent in a coal mine fully-mechanized mining working face, such as a controller and a pressure sensor.
In the related art, a hydraulic energy and electric energy conversion unit is used for converting hydraulic impact, vibration, noise and heat in a pipeline system into electric energy, and self-generation can be realized.
Content of application
The present invention is directed to solving, at least in part, one of the technical problems in the related art.
Therefore, the first purpose of the invention is to provide a self-generating system of an integrated liquid supply system high-pressure filtering station, which effectively converts and utilizes the residual energy in the liquid supply system in a main pipeline, converts the hydraulic energy into electric energy through a hydraulic motor for a load system to use, fully converts the energy in the system to realize self-power supply, can omit a heavy power box and a miscellaneous-free external cable, and has the outstanding advantages of simple and reliable structure, convenient replacement and maintenance and the like.
The invention aims to provide a self-generating method for the high-pressure filtering station of the integrated liquid supply system.
A third object of the present invention is to provide an integrated liquid supply system.
In order to achieve the above object, an embodiment of the first aspect of the present application provides a self-power-generation system of a high-pressure filtering station of an integrated liquid supply system, including:
a filter assembly;
the liquid supply assembly is used for providing filtered hydraulic medium for electric equipment of the coal working face by utilizing the filtering assembly;
a load assembly having one or more load cells; and
and the power generation assembly is respectively connected with the liquid supply assembly and the load assembly and is used for generating power by using residual hydraulic medium outside the electric equipment so as to store residual electric energy while supplying power to the load assembly.
In addition, the self-generating system of the integrated liquid supply system high-pressure filter station according to the above embodiment of the invention may further have the following additional technical features:
alternatively, the first and second liquid crystal display panels may be,
the liquid supply assembly includes:
an emulsion pump;
the unloading valve and the safety valve are arranged on the emulsion pump;
at least one pressure sensor disposed on the emulsion pump,
and the controller is respectively connected with the unloading valve and the at least one pressure sensor so as to control the unloading valve and the safety valve to perform opening action or closing action according to the actual pressure detected by the at least one pressure sensor.
Optionally, the power generation assembly comprises:
the liquid inlet three-way valve and the liquid return three-way valve are respectively arranged on a liquid inlet branch and a liquid return branch of the hydraulic medium;
the stop valve, the electromagnetic directional valve, the pressure reducing valve and the liquid return circuit breaker valve are respectively arranged at corresponding positions of the power generation circuit;
the pressure detection unit is used for detecting an actual pressure value so as to control the stop valve, the electromagnetic directional valve, the pressure reducing valve and the liquid return circuit breaker valve to execute corresponding actions based on the actual pressure value;
and the power generation unit is used for generating power by utilizing the residual hydraulic medium after the stop valve, the electromagnetic directional valve, the pressure reducing valve and the liquid return circuit breaker valve execute the corresponding actions.
Optionally, the power generation assembly further comprises:
and the explosion-proof shell is used for packaging the power generation unit.
Optionally, the power generation unit comprises:
a rotary power generation device;
the coding detection unit is connected with the rotary power generation device to detect the rotating speed of the coder;
the device comprises an energy storage unit and an electric energy detection unit;
the electric energy management unit is connected with the rotary power generation device so as to store the electric energy generated by the rotary power generation device to the energy storage unit when the electric energy detection unit detects that the stored electric quantity of the energy storage unit is lower than a preset threshold value;
the intelligent control unit and the coding detection unit are used for supplying power to the load assembly by using the electric energy according to the detection signal and/or storing the electric energy to the energy storage unit through the electric energy management unit.
Optionally, the slewing power generation device comprises:
a hydraulic motor;
and the power generation unit is connected with the hydraulic motor through a coupler and controls the hydraulic motor to generate power.
Optionally, the method further comprises:
and the fault detection assembly is used for detecting whether the power generation unit has a fault or not, identifying the fault type of the power generation unit after the power generation unit has the fault, and sending an alarm signal corresponding to the fault type.
Optionally, the fault detection assembly comprises:
the first detection assembly is used for judging that the motor is in fault when the fact that the rotating speed of the encoder is lower than a rotating speed threshold value and the actual pressure value is higher than or equal to a pressure threshold value is detected;
the second detection assembly is used for judging that the pump station is in fault when the fact that the rotating speed of the encoder is lower than the rotating speed threshold value and the actual pressure value is smaller than the pressure threshold value is detected;
and the third detection assembly is used for detecting that the charging mode is closed and the rotating speed of the hydraulic motor is zero, and judging that the electromagnetic valve is in fault.
In order to achieve the above object, a second embodiment of the present application provides a self-generating method for a high-pressure filtering station of an integrated liquid supply system, where the method includes:
providing filtered hydraulic medium for electric equipment of a coal working face by using the filter assembly, and extracting and providing residual hydraulic medium outside the electric equipment for power generation;
and generating power by using the residual hydraulic medium outside the supplied electric equipment so as to store residual electric energy while supplying power to the load assembly.
In order to achieve the purpose, the embodiment of the third aspect of the application provides a coal integrated liquid supply system, which comprises the self-generating system of the high-pressure filter station of the integrated liquid supply system.
Therefore, the motor can be driven to generate electricity by using the emulsion medium in real time, and the stable and efficient conversion and storage of hydraulic energy to electric energy are realized, so that the problems of complexity, low efficiency and poor stability of an energy collection system are solved; the rectification of electric energy, the storage of redundant energy, the stable output of intrinsic safety performance and the pre-judgment and alarm of faults are realized through an energy management unit and a logic algorithm controlled in a closed loop; the continuous generation and storage of electric energy are realized, and the energy can be used for the parallel connection of a plurality of isolating couplers, a comprehensive access device and an electromagnetic driver so as to realize the stable control of a plurality of drivers, sensors, audible and visual alarms and the like; meanwhile, the distribution and logic control relation of a hydraulic system of the intelligent power generation system are definitely explained and introduced; the method has the advantages that the method has definite constraints on the loads of the integrated liquid supply system, such as the types of the drivers and the sensors and the connection relation of the drivers and the sensors, and has high performability; and simple structure, the integrated level is high, just with the assembly, can realize the recycle of system's energy.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a block diagram of a hydraulic energy absorption, conversion, and storage system of the related art;
fig. 2 is a schematic structural diagram of an intelligent electromagnetic directional valve in the related art;
FIG. 3 is a schematic diagram of a safety power supply and communication device for a coal mine hydraulic support in a related art;
FIG. 4 is a schematic structural diagram of a wireless sensing device powered by a mine power source in the related art;
fig. 5 is a schematic block diagram of a charge and discharge detection module in the related art;
FIG. 6 is a schematic circuit diagram of a wireless sensing device powered by a mine power source according to the related art;
FIG. 7 is a block schematic diagram of a self-generating system of an integrated liquid supply system high pressure filter station provided in accordance with an embodiment of the present application;
FIG. 8 is a schematic diagram of a high pressure filtration plant system power generation system according to one embodiment of the present application;
FIG. 9 is a schematic diagram of a system for generating power for a return liquid filtration station according to an embodiment of the present application;
FIG. 10 is a logic diagram of a power detection unit according to an embodiment of the present application;
FIG. 11 is a flow chart of a fault diagnosis unit control according to one embodiment of the present application;
fig. 12 is a flow chart of a method for self-generating electricity for a high-pressure filter station of an integrated liquid supply system according to an embodiment of the application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
The integrated coal liquid supply system and the self-generating system and method of the high-pressure filter station thereof according to the embodiment of the invention are described below with reference to the accompanying drawings, and firstly, the self-generating system of the high-pressure filter station of the integrated liquid supply system according to the embodiment of the invention is described with reference to the accompanying drawings.
Before the self-generating system of the integrated liquid supply system high-pressure filter station of the embodiment of the present application is introduced, some solutions in the related art will be briefly described.
(1) As shown in fig. 1 and 2, a hydraulic energy absorbing, converting and storing system and a smart valve device without an external power supply are proposed in the related art, and include a hydraulic energy-electric energy converting unit and a control unit. The control unit is only powered by the hydraulic energy and electric energy conversion unit, has no external power supply and has two wired and wireless control modes. The intelligent valve device comprises an intelligent valve control unit, a hydraulic energy and electric energy conversion unit, an electromagnetic pilot valve, a hydraulic control reversing valve and the like, is only powered by the hydraulic energy and electric energy conversion unit, and does not have an external power supply. The hydraulic energy and electric energy conversion unit utilizes energy such as pipeline vibration, hydraulic impact and heat energy which are harmful to equipment to realize self-generation and storage through the hydraulic-electric conversion module.
However, this solution has the following drawbacks: the structure is complex, the fault points are many, and the installation is not convenient; the self-generating module (hydraulic energy and electric energy conversion unit) has a complex energy collection system, low efficiency and poor stability; residual energy in the integrated liquid supply system cannot be recycled, and the energy conversion rate is low; the electric energy storage unit is controlled in an open loop mode, lacks a logic control relation and an algorithm and has poor executability; although the structure can realize self-power generation and electric energy storage, the generated energy is only used for the use requirement of the intelligent valve unit, and the energy requirements of other energy consumption devices of the integrated liquid supply system, such as a sensor, an audible and visual alarm and the like, are not related; the passive and wireless integration level is poor, and the number of power boxes and cables for the integrated liquid supply system cannot be fundamentally solved.
(2) The related art provides a safety power supply and a communication device for a coal mine hydraulic support, which comprise an intrinsic safety type electric ball valve, an explosion-proof shell, a data processing board and a wireless signal isolation barrier. Be equipped with charge-discharge conversion module and data processing board in the flame proof shell, be equipped with this ampere of power between charge-discharge conversion module and the data processing board, this ampere of power is connected with charge-discharge conversion module and data processing board, be equipped with the wiring chamber on the flame proof shell, wiring chamber both ends are equipped with this ampere of power output terminal and data communication interface respectively, charge-discharge conversion module is connected with engine and battery, the data processing board is connected with the radio signal barrier fence, the radio signal barrier fence is connected with the antenna on the wiring chamber, data processing board and data communication interface connection, the flame proof shell outside is equipped with hydraulic motor, hydraulic motor is connected with the engine, hydraulic motor is external to have this ampere of type electric ball valve, this ampere of type electric ball valve passes through the present case power output terminal and is connected with the data processing board in the flame proof shell, this ampere of power is connected with present case power output terminal.
As shown in fig. 3, 1 intrinsically safe electric ball valve, 2 hydraulic motors, 3 engines, 4 storage batteries, 5 charge-discharge conversion modules, 6 intrinsically safe power output terminals, 7 intrinsically safe power supplies, 8 antennas, 9 data communication interfaces, 10 data processing boards, 11 wireless signal isolation barriers, 12 flameproof shells and 13 wiring cavities. When the hydraulic support works in use, the intrinsically safe electric ball valve 1 is opened by utilizing the electric quantity of the storage battery 4 through the data processing board 10; the intrinsically safe electric ball valve 1 drives an engine 3 to generate electricity through a hydraulic motor 2; the engine 3 charges the storage battery 4 through the charge-discharge conversion module 5, the intrinsic safety power supply 7 outputs the electrical energy to the hydraulic support through the intrinsic safety power supply output terminal 6, and when the electrical quantity of the storage battery 4 is lower than a set value, the data processing board 10 opens the intrinsic safety type electric ball valve 1 to repeat the power generation process; when the electric quantity of the storage battery 4 is higher than a set value, the data processing board 10 closes the intrinsic safety type electric ball valve 1 to stop generating electricity, and system data of the hydraulic support controller is communicated with a coal face centralized control computer through the data processing board 10, the wireless signal isolation fence 11 and the antenna 8 through the data communication interface 9.
However, although this structure can realize self-generation and electric energy storage by using the hydraulic system, the layout and control logic of the hydraulic system of the power generation system are not described, and the performability is poor; and the structure does not explain and restrict the energy consumption load of the fully mechanized coal mining face, has wide range and is difficult to realize.
(3) The related art also provides a wireless sensing device utilizing mine power supply for power supply, which comprises a driving device, a charging and discharging detection module and a signal acquisition mechanism, wherein the driving device charges a storage battery through a generator, the storage battery detects through the charging and discharging detection module, and supplies power to the signal acquisition mechanism through an intrinsic safety power supply, the signal acquisition mechanism is connected with an antenna through a wireless signal isolation grid, and the charging and discharging detection mechanism, the signal acquisition mechanism, the storage battery and the wireless signal isolation grid are externally provided with a flameproof shell.
As shown in fig. 4 to 6, in the drawings, 1 a driving device, 2 a generator, 3 a charging and discharging detection module, 4 a storage battery, 5 an intrinsic safety power supply, 6 a signal acquisition board, 7 a sensing probe, 8 an actuator, 9 a wireless signal isolation grid, 10 antennas and 11 a flameproof shell.
Specifically, the driving device 1 drives the generator 2 to rotate to generate power, the storage battery 4 is charged in a floating mode through the charging and discharging detection module 3, the signal acquisition board 6, the sensing probe 7, the actuator 8, the wireless signal isolation grid 9 and the antenna 10 are powered through the intrinsically safe power supply 5, underground data acquisition, processing, sending and receiving are completed, the device adopts explosion-proof, intrinsically safe and isolation technology, the generator 2, the charging and discharging detection module 3, the storage battery 4, the intrinsically safe power supply 5, the signal acquisition board 6 and the wireless signal isolation grid 9 are packaged in the explosion-proof shell 11, the driving device 1 is connected with the explosion-proof shell 11 through a rotating shaft and in explosion-proof clearance fit, the sensing probe 7, the actuator 8 and the antenna 10 are connected with the explosion-proof shell through cables and a leading-in device, electric signals of the driving device are connected with the signal acquisition board 6 and the wireless signal isolation grid 9 to achieve intrinsic safe isolation of external signals from signals in the explosion-proof shell, the charging and discharging detection module 3 detects the working state of the storage battery 4, and the charging and discharging detection module 3 sends alarm signals to a ground management system when the storage battery 4 is in a power shortage state.
However, although this structure can realize self-generation and electric energy storage by using a hydraulic system, the layout and control logic of the hydraulic system of the power generation system are not described, and the performability is poor; the structure does not explain and restrict the energy consumption load of the fully mechanized coal mining face, has wide range and is difficult to realize;
based on the problems, the self-generating system of the high-pressure filter station of the integrated liquid supply system can utilize an emulsion medium to drive a motor to generate electricity in real time, and realize stable and efficient conversion and storage of hydraulic energy to electric energy, so that the problems of complexity, low efficiency and poor stability of an energy collection system are solved; the rectification of electric energy, the storage of redundant energy, the stable output of intrinsic safety performance and the pre-judgment and alarm of faults are realized through an energy management unit and a logic algorithm controlled in a closed loop; the continuous generation and storage of electric energy are realized, and the energy can be used for the parallel connection of a plurality of isolating couplers, a comprehensive access device and an electromagnetic driver so as to realize the stable control of a plurality of drivers, sensors, audible and visual alarms and the like; meanwhile, the distribution and logic control relation of a hydraulic system of the intelligent power generation system are explicitly explained and introduced; the method has the advantages that the method has definite constraints on the loads of the integrated liquid supply system, such as the types of the drivers and the sensors and the connection relation of the drivers and the sensors, and has high performability; and simple structure, the integrated level is high, just with the assembly, can realize the recycle of system's energy.
Specifically, fig. 7 is a schematic structural diagram of a self-power-generation system of a high-pressure filtering station of an integrated liquid supply system according to an embodiment of the present application.
As shown in fig. 7, the integrated liquid supply system high pressure filtration station self-generating system 10 includes: filter stack 100 provides a liquid supply assembly 200, a load assembly 300, and a power generation assembly 400.
The liquid supply assembly 200 is used for providing filtered hydraulic medium for electric equipment of a coal working face by using the filter assembly;
optionally, in some embodiments, the liquid supply assembly 200 comprises: an emulsion pump; the unloading valve and the safety valve are arranged on the emulsion pump; the controller is respectively connected with the unloading valve and the at least one pressure sensor so as to control the unloading valve and the safety valve to perform opening or closing actions according to actual pressure detected by the at least one pressure sensor.
The load assembly 300 has one or more load cells; the power generation assembly 400 is connected to the liquid supply assembly 200 and the load assembly 300, respectively, and is used for generating power by using a residual hydraulic medium outside the supply electric equipment so as to store residual electric energy while supplying power to the load assembly 300.
Optionally, in some embodiments, the power generation assembly 400 comprises: the liquid inlet three-way valve and the liquid return three-way valve are respectively arranged on a liquid inlet branch and a liquid return branch of the hydraulic medium; the stop valve, the electromagnetic directional valve, the pressure reducing valve and the liquid return circuit breaker valve are respectively arranged at corresponding positions of the power generation circuit; the pressure detection unit is used for detecting an actual pressure value so as to control the stop valve, the electromagnetic directional valve, the pressure reducing valve and the liquid return circuit breaker valve to execute corresponding actions based on the actual pressure value; and the power generation unit is used for generating power by using the residual hydraulic medium after the stop valve, the electromagnetic directional valve, the pressure reducing valve and the liquid return circuit breaker valve execute corresponding actions.
It can be understood that, as shown in fig. 8, A1 is a high-pressure liquid supply system, A2 is an intelligent power generation system, A3 is a load system, A4 is a high-pressure filtration system, 71 is an emulsion pump, 72 is an electrically controlled unloading valve, 73 is a pressure sensor, 74 is a safety valve, and 75 is a controller and its pipe accessories; 80 is a liquid inlet tee joint, and 800 is a heald working surface. The high-pressure liquid supply system and the intelligent power generation system are connected in series through pipeline accessories; the high-pressure liquid supply system provides high-pressure liquid for the intelligent power generation system and the high-pressure filtering station; the intelligent power generation system is connected with the load system through a cable and provides electric energy for the load system;
specifically, the high-pressure liquid supply system and the intelligent power generation system are connected in series through a pipeline accessory; the high-pressure liquid supply system provides high-pressure liquid for the intelligent power generation system and the high-pressure filtering station; the intelligent power generation system is connected with the load system through a cable and provides electric energy for the load system;
a1, the high-pressure liquid supply system comprises 71 an emulsion pump, a 72 electric control unloading valve, a 73 pressure sensor, a 74 safety valve, a 75 controller and pipeline accessories, wherein the 72 electric control unloading valve, the 73 pressure sensor, the 74 safety valve, the 75 controller and the pipeline accessories are connected with the emulsion pump; an electric control unloading valve and a safety valve are arranged on the emulsion pump; the electric control unloading valve is provided with a pressure sensor; the controller is connected with the electric control unloading valve and the pressure sensor through cables;
the intelligent power generation system A2 is shown in figure 9 and comprises a stop valve, an electromagnetic directional valve, a pressure reducing valve, a pressure detection unit, a Z1 intelligent power generation unit, a liquid return circuit breaker valve, a liquid inlet three-way valve, a liquid return three-way valve and pipeline accessories thereof; the stop valve is connected in series behind the liquid inlet three-way valve through a pipeline accessory; the electromagnetic directional valve, the pressure reducing valve, the pressure detection unit and the liquid return circuit breaker valve are sequentially connected in series behind the stop valve through pipeline accessories and are connected in series with the liquid return three-way valve; the electromagnetic directional valve and the pressure detection unit are connected with the intelligent power generation unit through control cables;
optionally, in some embodiments, the power generation assembly 400 further comprises: and the explosion-proof shell is used for packaging the power generation unit.
Wherein, in some embodiments, the power generation unit comprises: a rotary power generation device; the coding detection unit is connected with the rotary power generation device to detect the rotating speed of the coder; the device comprises an energy storage unit and an electric energy detection unit; the electric energy management unit is connected with the rotary power generation device and used for storing the electric energy generated by the rotary power generation device to the energy storage unit when the electric energy detection unit detects that the stored electric quantity of the energy storage unit is lower than a preset threshold value; the intelligent control unit, the intelligent control unit and the code detection unit are used for supplying power to the load assembly by using electric energy according to the detection signal and/or storing the electric energy to the energy storage unit through the electric energy management unit.
Wherein, in some embodiments, the slewing power generation device comprises: a hydraulic motor; and the power generation unit is connected with the hydraulic motor through a coupler and controls the hydraulic motor to generate power.
Specifically, the Z1 intelligent power generation unit is integrally installed in the explosion-proof shell and comprises a rotary power generation device, a coding detection unit, an electric energy management unit, an intelligent control unit, an energy storage unit, an electric energy detection unit and a connecting line thereof; the rotary power generation device comprises a hydraulic motor and a power generation unit; the hydraulic motor is connected with the power generation unit through a coupler; the coding detection unit is connected with the rotary power generation device through a control line and transmits signals to the intelligent control unit in real time; the electric energy management unit is connected with the rotary power generation device through a cable and transmits electric energy to the intelligent control unit; the storage unit is connected with the intelligent control unit through a cable; the electric energy detection unit is connected with the intelligent control unit and the storage unit through cables and can feed back detection signals to the intelligent control unit in real time;
the pressure detection unit is connected with the Z1 intelligent power generation unit through a cable, and can feed back a pressure signal to the Z1 intelligent power generation unit in real time;
the electromagnetic directional valve is connected with the Z1 intelligent power generation unit through a cable; the Z1 intelligent power generation unit can control the action of the electromagnetic directional valve to control the action of the rotary power generation device.
Optionally, in some embodiments, the method further comprises: and the fault detection assembly is used for detecting whether the power generation unit fails or not, identifying the fault type of the power generation unit after the power generation unit fails, and sending an alarm signal corresponding to the fault type.
Optionally, in some embodiments, the fault detection assembly comprises: the first detection assembly is used for judging the motor fault when detecting that the rotating speed of the encoder is lower than a rotating speed threshold value and an actual pressure value is higher than or equal to a pressure threshold value; the second detection assembly is used for judging that the pump station is in fault when the fact that the rotating speed of the encoder is lower than the rotating speed threshold value and the actual pressure value is smaller than the pressure threshold value is detected; and the third detection assembly is used for detecting that the charging mode is closed and the rotating speed of the hydraulic motor is zero, and judging that the electromagnetic valve is in fault.
It can be understood that, as shown in fig. 10, the electric energy detection unit includes an electric quantity detection chip, an AD sampling module, an MCU controller, and a signal display module; the signal display module comprises a display lamp and a signal feedback device;
the intelligent control unit has a fault diagnosis function, and the logic control relation of the intelligent control unit is shown in figure 11;
a3, a load system comprising a driver, a pressure sensor, an audible and visual alarm and the like;
the intelligent power generation unit is connected with the load unit through a cable;
the A4 high-pressure filtering station system comprises a filter, a pressure detection unit and a safety valve; the A4 high-pressure filtering station is connected in series behind the A1 high-pressure liquid supply system through a hydraulic pipeline; the A4 high-pressure filtering station is connected with the A2 intelligent power generation system in parallel through a pipeline and is connected to a main pipeline;
in summary, the application example has the following flow and control logic when in use: the high-pressure pump filters high-pressure liquid through a high-pressure filtering station by a hydraulic and electric control system and then sends the filtered high-pressure liquid to a working surface. The intelligent power generation system works as follows: when the electric energy detection unit detects that the electric quantity of the energy storage unit is lower than a threshold value, the intelligent power generation unit sends a signal to control the electromagnetic directional valve to be in a working position, high-pressure liquid drives the rotary power generation mechanism to generate power through the pressure reducing valve, redundant hydraulic energy is converted into electric energy to realize power recovery, and the generated electric energy is processed by the electric energy management unit and then is sent to the intelligent control unit; the intelligent control unit can supply the intrinsic safety type power supply to the load for direct use or transmit redundant electric energy to the storage unit; when the electric energy detection unit detects that the electric quantity of the energy storage unit is higher than the threshold value, the intelligent power generation unit sends a signal to control the electromagnetic directional valve to be in a non-working position, the rotary power generation device stops working, and the intelligent power generation unit is in an idle mode. The intelligent control unit can realize the fault detection of the intelligent power generation unit through the logic control relation between the intelligent control unit and the coding detection unit and between the intelligent control unit and the electric energy detection unit, and sends out an alarm.
In addition, it should be noted that the high-pressure liquid supply system adopted in the application is an emulsion pump station system, but the existing coal mine liquid supply system using a pure water pump and an ultrapure water pump is also applicable to the technical scheme of the application, and is not specifically limited herein; the high-pressure liquid supply system adopted in the application is a single emulsion pump, the connection form of the high-pressure liquid supply system is only one of the existing schemes, and the existing schemes have a plurality of pumps for centralized liquid supply or remote liquid supply, so the embodiment provided by the application is only exemplary and is not limited to any connection mode and liquid supply form; the driving part of the rotary power generation device described in the intelligent power generation unit in the intelligent power generation system adopted in the present application is a hydraulic motor, but the existing power generation uses a rotary mechanism comprising a motor, a turbine, a rotary cylinder and the like, so the embodiments provided in the present application are only exemplary and are not limited to any one form of rotary mechanism; the load system adopted in the application comprises typical drivers, sensors and the like, but the types and the number of the loads of the existing coal mine are increased or decreased, so that the embodiment provided by the application is only exemplary and is not limited to any load form of the fully mechanized mining face; the fault pre-judgment and alarm logic relation adopted in the application is only a preferred scheme implemented in the embodiment, and the alarm form can be buzzing, light or character display, so that the embodiment provided by the application is not limited to any one alarm form.
According to the self-generating system of the integrated liquid supply system high-pressure filter station, the motor can be driven by the emulsion medium in real time to generate electricity, and stable and efficient conversion and storage from hydraulic energy to electric energy are realized, so that the problems of complexity, low efficiency and poor stability of an energy collecting system are solved; the rectification of electric energy, the storage of redundant energy, the stable output of intrinsic safety performance and the pre-judgment and alarm of faults are realized through an energy management unit and a logic algorithm controlled in a closed loop; the continuous generation and storage of electric energy are realized, and the energy can be used for the parallel connection of a plurality of isolating couplers, a comprehensive access device and an electromagnetic driver so as to realize the stable control of a plurality of drivers, sensors, audible and visual alarms and the like; meanwhile, the distribution and logic control relation of a hydraulic system of the intelligent power generation system are explicitly explained and introduced; the method has the advantages that the method has definite constraints on the loads of the integrated liquid supply system, such as the types of the drivers and the sensors and the connection relation of the drivers and the sensors, and has high performability; and simple structure, the integrated level is high, just with the assembly, can realize the recycle of system's energy.
The self-generating method of the integrated liquid supply system high-pressure filter station is described with reference to the attached drawings.
FIG. 12 is a flow chart of a method for generating electricity by the integrated liquid supply system high-pressure filter station according to an embodiment of the application.
As shown in fig. 12, the self-generating method of the high-pressure filtering station of the integrated liquid supply system adopts the system of the above embodiment, which includes the following steps:
in step S1201, the filtered hydraulic medium is provided to the electric equipment on the coal face by the filter assembly, and the remaining hydraulic medium other than the provided electric equipment is extracted to generate power.
In step S1202, power is generated using a remaining hydraulic medium outside the electricity supply device to store the remaining power while supplying power to the load assembly.
It should be noted that the foregoing explanation of the embodiment of the self-generating system of the integrated liquid supply system high-pressure filter station is also applicable to the self-generating method of the integrated liquid supply system high-pressure filter station of the embodiment, and is not repeated here.
According to the self-generating method of the high-pressure filtering station of the integrated liquid supply system, the motor can be driven to generate electricity by using the emulsion medium in real time, and stable and efficient conversion and storage from hydraulic energy to electric energy are realized, so that the problems of complexity, low efficiency and poor stability of an energy collecting system are solved; the rectification of electric energy, the storage of redundant energy, the stable output of intrinsic safety performance and the prediction and alarm of faults are realized through an energy management unit and a logic algorithm under closed-loop control; the continuous generation and storage of electric energy are realized, and the energy can be used for the parallel connection of a plurality of isolation couplers, a comprehensive access device and an electromagnetic driver so as to realize the stable control of a plurality of drivers, sensors, audible and visual alarms and the like; meanwhile, the distribution and logic control relation of a hydraulic system of the intelligent power generation system are explicitly explained and introduced; the method has the advantages that the method has definite constraints on the loads of the integrated liquid supply system, such as the types of the drivers and the sensors and the connection relation of the drivers and the sensors, and has high performability; and simple structure, the integrated level is high, just with the assembly, can realize the recycle of system's energy.
In addition, the embodiment of the application also provides a coal integrated liquid supply system, and the coal integrated liquid supply system comprises a self-generating system of the integrated liquid supply system high-pressure filter station.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or N embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "N" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more N executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of implementing the embodiments of the present application.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or N wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (9)
1. An integrated liquid supply system high pressure filter station self-generating system, comprising:
a filter assembly;
the liquid supply assembly is used for providing filtered hydraulic medium for electric equipment of the coal working face by utilizing the filtering assembly;
a load assembly having one or more load cells; and
the power generation assembly is respectively connected with the liquid supply assembly and the load assembly and used for generating power by using residual hydraulic media except for the electric equipment so as to supply power to the load assembly and store residual electric energy; the power generation assembly includes:
the liquid inlet three-way valve and the liquid return three-way valve are respectively arranged on a liquid inlet branch and a liquid return branch of the hydraulic medium;
the stop valve, the electromagnetic directional valve, the pressure reducing valve and the liquid return circuit breaker valve are respectively arranged at corresponding positions of the power generation circuit;
the pressure detection unit is used for detecting an actual pressure value so as to control the stop valve, the electromagnetic directional valve, the pressure reducing valve and the liquid return circuit breaker valve to execute corresponding actions based on the actual pressure value;
and the power generation unit is used for generating power by utilizing the residual hydraulic medium after the stop valve, the electromagnetic directional valve, the pressure reducing valve and the liquid return circuit breaker valve execute the corresponding actions.
2. The system of claim 1, wherein the liquid supply assembly comprises:
an emulsion pump;
the unloading valve and the safety valve are arranged on the emulsion pump;
at least one pressure sensor disposed on the emulsion pump,
and the controller is respectively connected with the unloading valve and the at least one pressure sensor so as to control the unloading valve and the safety valve to perform opening action or closing action according to the actual pressure detected by the at least one pressure sensor.
3. The system of claim 1, wherein the power generation assembly further comprises:
and the explosion-proof shell is used for packaging the power generation unit.
4. The system of claim 1 or 3, wherein the power generation unit comprises:
a rotary power generation device;
the coding detection unit is connected with the rotary power generation device to detect the rotating speed of the coder;
the device comprises an energy storage unit and an electric energy detection unit;
the electric energy management unit is connected with the rotary power generation device so as to store the electric energy generated by the rotary power generation device to the energy storage unit when the electric energy detection unit detects that the stored electric quantity of the energy storage unit is lower than a preset threshold value;
the intelligent control unit and the coding detection unit are used for supplying power to the load assembly by using the electric energy according to the detection signal and/or storing the electric energy to the energy storage unit through the electric energy management unit.
5. The system of claim 4, wherein the rotary power unit comprises:
a hydraulic motor;
and the power generation unit is connected with the hydraulic motor through a coupler and controls the hydraulic motor to generate power.
6. The system of claim 5, further comprising:
and the fault detection assembly is used for detecting whether the power generation unit has a fault or not, identifying the fault type of the power generation unit after the power generation unit has the fault, and sending an alarm signal corresponding to the fault type.
7. The system of claim 6, wherein the fault detection component comprises:
the first detection assembly is used for judging that the motor is in fault when the fact that the rotating speed of the encoder is lower than a rotating speed threshold value and the actual pressure value is higher than or equal to a pressure threshold value is detected;
the second detection assembly is used for judging that the pump station is in fault when the fact that the rotating speed of the encoder is lower than the rotating speed threshold value and the actual pressure value is smaller than the pressure threshold value is detected;
and the third detection assembly is used for detecting that the charging mode is closed and the rotating speed of the hydraulic motor is zero, and judging that the electromagnetic valve is in fault.
8. A self-generating method of a high-pressure filtering station of an integrated liquid supply system is characterized in that the system according to any one of claims 1-7 is adopted, wherein the method comprises the following steps:
providing filtered hydraulic medium for electric equipment of a coal working face by using the filter assembly, and extracting and providing residual hydraulic medium outside the electric equipment for power generation;
and generating power by using the residual hydraulic medium outside the supplied electric equipment so as to store residual electric energy while supplying power to the load assembly.
9. A coal integrated liquid supply system, characterized by comprising: an integrated liquid supply system high pressure filter station self power generation system as claimed in any one of claims 1 to 7.
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| JP2000136806A (en) * | 1998-11-04 | 2000-05-16 | Komatsu Ltd | Pressure oil energy recovery equipment and pressure oil energy recovery/regeneration equipment |
| CN101839208A (en) * | 2009-03-16 | 2010-09-22 | 马广奇 | Hydraulic motor-driving generator device |
| CN202007435U (en) * | 2011-03-01 | 2011-10-12 | 湖南山河智能机械股份有限公司 | Energy recovering system for excavator |
| CN102418354B (en) * | 2011-10-28 | 2013-09-18 | 华侨大学 | Pump/motor-based parallel-series hybrid hydraulic excavator driving system |
| US20180142630A1 (en) * | 2016-11-21 | 2018-05-24 | Richard Boggs | Diesel Electric Generator Load Bank System Cooled by Exhaust Gas and Method Therefor |
| CN109183893B (en) * | 2018-09-26 | 2020-09-01 | 徐州工程学院 | Excavator rotation energy-saving hydraulic system based on load sensitivity and control method |
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