CN105955156B - Energy-saving energy supervision system of hydraulic machine - Google Patents
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- CN105955156B CN105955156B CN201610250644.5A CN201610250644A CN105955156B CN 105955156 B CN105955156 B CN 105955156B CN 201610250644 A CN201610250644 A CN 201610250644A CN 105955156 B CN105955156 B CN 105955156B
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- G05B19/00—Programme-control systems
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Abstract
The invention provides an energy-saving energy supervision system of a hydraulic machine, which comprises a three-phase power supply, a digital electric meter, an input reactor, a frequency converter, a three-phase asynchronous motor, a plunger pump, a speed sensor, a programmable controller, a counter and a man-machine interaction device, wherein the digital electric meter is communicated and calculated with the programmable controller, the counter and the man-machine interaction device to realize the management and statistics of the energy consumption of oil supply consumption and the saved energy consumption of the hydraulic system of the hydraulic machine, wherein the energy consumption and the production of every hour, every day and every month are recorded and stored regularly, and the energy-saving energy supervision system also has the functions of automatically generating a report form and automatically storing equipment maintenance records, mold maintenance records and the like.
Description
Technical Field
The invention relates to the technical field of die casting machines, in particular to an energy-saving energy supervision system of a hydraulic machine.
Background
In the working process of the hydraulic system of the existing hydraulic machine, oil supply control is needed to be carried out on the hydraulic system of the hydraulic machine through a plunger pump, but reasonable monitoring and management on energy consumption are not carried out in the existing oil supply mechanism. If a specific energy consumption situation is needed to be known, at most, only the monthly energy consumption or the annual energy consumption of the equipment can be known, and the capacity of real-time monitoring and data analysis of the energy consumption is not available, so that the management of the whole production is inconvenient.
Therefore, how to monitor and manage energy consumption data in the working process of the hydraulic system of the hydraulic machine is a technical problem to be solved by those skilled in the art at present.
Disclosure of Invention
In view of the above, the present invention provides an energy-saving energy monitoring system for a hydraulic system of a hydraulic machine, which is used to solve the problem of how to monitor and manage energy consumption data in the working process of the hydraulic system of the hydraulic machine.
In order to achieve the above objects and other related objects, the present invention provides the following technical solutions:
the utility model provides an energy-conserving energy supervisory systems of hydraulic press hydraulic system which characterized in that: the device comprises a three-phase power supply, a digital electric meter, an input reactor, a frequency converter, a three-phase asynchronous motor, a plunger pump, a speed sensor, a programmable controller, a counter and a man-machine interaction device, wherein the input of the frequency converter acquires a speed signal of a hydraulic system of the hydraulic machine by being connected with the speed sensor, the frequency converter acquires flow and pressure required by the hydraulic system of the hydraulic machine according to the speed signal, the output of the frequency converter controls the rotating speed and moment of the three-phase asynchronous motor by being connected with the three-phase asynchronous motor, the three-phase asynchronous motor drags the plunger pump to supply oil to the hydraulic system of the hydraulic machine according to the rotating speed and moment, in addition, the frequency converter acquires electric power by being connected with the three-phase power supply, the digital electric meter and the input reactor are sequentially connected with a connecting line of the three-phase power supply, the programmable controller is also respectively connected with a counter and the man-machine interaction device, at least acquires energy consumption information, yield information, current information and voltage information output by the three-phase power supply through the programmable controller and displays the information on the man-machine interaction device in real time, and the man-machine interaction device is connected with the programmable controller to control the oil supply of the hydraulic system 1 of the hydraulic machine and set parameters.
Preferably, said counter 29 connected to said programmable controller 28 comprises at least: a first time register for providing a statistical time period; the output register is used for executing counting every time the controller receives a pulse signal sent by the three-phase asynchronous motor when the three-phase asynchronous motor drives the plunger pump to work for one cycle according to the rotating speed and the moment and supplies oil to the hydraulic system of the hydraulic machine; the ammeter reading register is used for reading the energy consumption recorded on the ammeter; the first yield calculation register is used for recording the counting result of the yield register at the starting time point when the time period starts; the first electric quantity calculation register is used for recording the energy consumption recorded by the electric meter reading register at the starting time point when the time period starts; a first yield calculation result register for recording a count result obtained by performing a logical subtraction operation on the count result in the yield register and the count result in the first yield calculation register at the end of the time period; the first electric quantity calculation result register is used for recording a counting result obtained by performing logical subtraction on the counting result in the electric meter reading register and the counting result in the first electric quantity calculation register when the time period is ended; and the programmable controller executes the logic subtraction operation and sends counting results in the first yield calculation result register and the first electric quantity calculation result register to the human-computer interaction device for displaying.
Preferably, said counter 29 connected to said programmable controller 28 comprises at least: a second time register for providing a statistical time period; the output register is used for executing counting every time the controller receives a pulse signal sent by the three-phase asynchronous motor when the three-phase asynchronous motor drives the plunger pump to work for one cycle according to the rotating speed and the moment and supplies oil to the hydraulic system of the hydraulic machine; the ammeter reading register is used for reading the energy consumption recorded on the ammeter; the second yield calculation register is used for recording the counting result of the yield register at the starting time point when the time period starts; the second electric quantity calculation register is used for recording the energy consumption recorded by the electric meter reading register at the starting time point when the time period starts; a second yield calculation result register for recording a count result obtained by performing a logical subtraction operation on the count result in the yield register and the count result in the second yield calculation register when the time period ends; the second electric quantity calculation result register is used for recording a counting result obtained by performing logical subtraction on the counting result in the electric meter reading register and the counting result in the second electric quantity calculation register when the time period is ended; and the programmable controller executes the logic subtraction operation and sends counting results in the second yield calculation result register and the second electric quantity calculation result register to the human-computer interaction device for displaying.
Preferably, said counter 29 connected to said programmable controller 28 comprises at least: a third time register for providing a statistical time period; the output register is used for executing counting every time the controller receives a pulse signal sent by the three-phase asynchronous motor when the three-phase asynchronous motor drives the plunger pump to work for one cycle according to the rotating speed and the moment and supplies oil to the hydraulic system of the hydraulic machine; the ammeter reading register is used for reading the energy consumption recorded on the ammeter; a third yield calculation register for recording a counting result of the yield register at the starting time point when the time period starts; the third electric quantity calculation register is used for recording the energy consumption recorded by the electric meter reading register at the starting time point when the time period starts; a third yield calculation result register for recording a count result obtained by performing a logical subtraction operation on the count result in the yield register and the count result in the third yield calculation register when the time period ends; the third electric quantity calculation result register is used for recording a counting result obtained by performing logical subtraction on the counting result in the electric meter reading register and the counting result in the third electric quantity calculation register when the time period is ended; and the programmable controller executes the logic subtraction operation and sends counting results in the third yield calculation result register and the third electric quantity calculation result register to the human-computer interaction device for displaying.
Preferably, said counter 29 connected to said programmable controller 28 comprises at least: a fourth time register for providing a statistical time period; the output register is used for executing counting every time the controller receives a pulse signal sent by the three-phase asynchronous motor when the three-phase asynchronous motor drives the plunger pump to work for one cycle according to the rotating speed and the moment and supplies oil to the hydraulic system of the hydraulic machine; the ammeter reading register is used for reading the energy consumption recorded on the ammeter; a fourth yield calculation register for recording a counting result of the yield register at the starting time point when the time period starts; the fourth electric quantity calculation register is used for recording the energy consumption recorded by the electric meter reading register at the starting time point when the time period starts; a fourth yield calculation result register for recording a count result obtained by performing a logical subtraction operation on the count result in the yield register and the count result in the fourth yield calculation register when the time period ends; the fourth electric quantity calculation result register is used for recording a counting result obtained by performing logical subtraction on the counting result in the electric meter reading register and the counting result in the fourth electric quantity calculation register when the time period is ended; and the programmable controller executes the logic subtraction operation and sends counting results in the fourth yield calculation result register and the fourth electric quantity calculation result register to the human-computer interaction device for displaying.
As described above, the present invention has the following advantageous effects: the invention innovatively provides energy for monitoring oil supply of the hydraulic system 1 of the hydraulic machine, brings great convenience to field production, and enables production management to become intelligent
Drawings
In order to more clearly illustrate the solution in the embodiments of the present invention, the drawings used in the description of the specific embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive effort.
Fig. 1 is a schematic diagram of an energy-saving energy supervision system of a hydraulic machine provided by the invention.
Fig. 2 is a schematic diagram of an implementation between a programmable controller and a counter.
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 of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the energy-saving energy monitoring system for a hydraulic machine according to the present invention includes, as shown in the figure, a three-phase power supply 21, a digital electric meter 22, an input reactor 23, a frequency converter 24, a three-phase asynchronous motor 25, a plunger pump 26, a speed sensor 27, a programmable controller 28, a counter 29, and a human-computer interaction device 210, wherein an input of the frequency converter 24 is connected to the speed sensor 27 to obtain a speed signal of the hydraulic system 1 of the hydraulic machine, the frequency converter 24 obtains a flow rate and a pressure required by the hydraulic system 1 of the hydraulic machine according to the speed signal, an output of the frequency converter 24 is connected to the three-phase asynchronous motor 25 to control a rotation speed and a torque of the three-phase asynchronous motor 25, the three-phase asynchronous motor 25 drags the plunger pump 26 to supply oil to the hydraulic system 1 of the hydraulic machine according to the rotation speed and the torque, and the frequency converter 24, the digital electric meter 22 and the input reactor 23 are sequentially connected to the connection line of the three-phase power supply 21 and the frequency converter 24, the digital electric meter 22 is communicated with a programmable controller 28 through an RS485 interface, the programmable controller 28 is further respectively connected with a counter 29 and a man-machine interaction device 210, energy consumption information, yield information, current information and voltage information output by the three-phase power supply 21 are at least collected through the programmable controller 28 and are displayed in the man-machine interaction device 210 in real time, and the man-machine interaction device 210 is connected with the programmable controller 28 to control oil supply of the hydraulic system 1 of the hydraulic machine and set parameters.
The principle of the technical scheme is as follows: the process state speed electric signal adopted by the hydraulic system 1 of the hydraulic machine is fed back to the input end of the frequency converter 24, the frequency converter 24 obtains the flow and the pressure required by the hydraulic system 1 of the hydraulic machine, the rotating speed and the torque of the three-phase asynchronous motor 25 are controlled, the plunger pump is dragged to supply oil to the hydraulic system 1 of the hydraulic machine, the three-phase power supply is used as a power supply, the digital electric meter is connected with the programmable controller 28 in an RS485 communication mode, the programmable controller 28 carries out real-time data acquisition on energy consumption, meanwhile, the counter 29 transmits a pulse signal to the programmable controller 28, the programmable controller 28 carries out energy consumption and yield calculation through a programmed program, the yield and the energy consumption of the die-casting machine per hour, day and month and single product energy consumption in unit time are automatically calculated, the process data are stored, and a basis is provided for the.
The programmable controller 28 and the counter 29 are cooperated to perform real-time monitoring processing on the energy consumption information and data of hourly production/energy consumption, daily production/energy consumption, monthly production/energy consumption and the like of the production information, and the scheme thereof will be described in detail below.
Specifically, the process implementation principle to achieve energy consumption and yield per hour is: referring to fig. 2, the counter 29 connected to the programmable controller 28 at least includes: a first time register 291 for providing a statistical time period; a production register 292 which performs counting every time the controller receives a pulse signal sent when the three-phase asynchronous motor 25 drives the plunger pump 26 to work for one cycle to supply oil to the hydraulic system 1 of the hydraulic machine according to the rotating speed and the moment; an electric meter reading register 293 for reading the energy consumption recorded on the electric meter; a first yield calculation register 2911, configured to record, at the beginning of the time period, a count result of the yield register at the starting time point; a first electric quantity calculation register 2912, configured to record, at the beginning of the time period, the energy consumption recorded by the electric meter reading register at the beginning time point; a first yield calculation result register 2913, configured to record, at the end of the time period, a count result obtained by performing a logical subtraction operation on the count result in the yield register and the count result in the first yield calculation register; a first electric quantity calculation result register 2914, configured to record, when the time period ends, a count result obtained by performing a logical subtraction operation on the count result in the electric meter reading register and the count result in the first electric quantity calculation register; the programmable controller 28 executes the logical subtraction operation, and sends the counting results in the first yield calculation result register and the first electric quantity calculation result register to the human-computer interaction device 210 for displaying.
In more detail, referring to fig. 2, when the three-phase asynchronous motor 25 drives the plunger pump 26 to operate for one cycle according to the rotating speed and the torque to supply oil to the hydraulic system 1 of the hydraulic machine, a switching pulse signal is sent to the programmable controller 28, and after the programmable controller 28 collects the pulse signal, the yield register D2004 automatically performs a 1 adding operation, and when each product is produced by the die-casting machine, the register D2004 automatically adds one. The programmable controller 28 performs production yield and energy consumption statistics automatically and periodically through the registers of perpetual calendar hour D1315, day D1316, month D1317 and year D1318, for example, to count 8: 00 to 9: 00, the programmable controller 28 operates by: when hour register D1315 equals 8, programmable controller 28 sends the yield register D2004 reading to register D3124 and the meter reading register D30 reading to register D2124. When the hour register D1315 equals 9 points, the programmable controller 28 stores the subtraction result between the production register D2004 and the register D3124 as D3128, and stores the subtraction result between the meter reading register D30 and the register D2124 as D2128. Namely, it is
8: 00-9: yield 00D 3128 ═ D2004-D3124;
8: 00-9: 00 energy consumption D2128 is D30-D2124;
the single-piece energy consumption D500 is D2128/D3128.
From the above description, it is obvious that the principle and hour of monitoring the related energy consumption and product information every day, every month and every year are the same, that is, as shown in fig. 2, registers (294, 295, 296) for providing statistical cycles of every day, every month and every year may be adopted, and each may adopt other registers equipped the same as the first time register 291, which will not be described again here.
In specific implementation, the human-computer interaction device 210 is connected with a programmable control communication mode, energy consumption, yield, current, voltage and the like are displayed and monitored in real time through programming, parameters can be set and the hydraulic system 1 of the hydraulic machine can be controlled, equipment maintenance and operating personnel can manually input equipment and mold maintenance information through the human-computer interaction device 210, the human-computer interaction device 210 automatically stores maintenance information and generates a maintenance report, the human-computer interaction device 210 has a historical production quantity and historical energy consumption query function, an input reactor performs filtering processing on a system power supply, and the interference effect of the frequency converter 24 on the system can be prevented.
In conclusion, the invention innovatively provides an energy source for driving the hydraulic system 1 of the hydraulic machine to supply oil for supervision, which brings great convenience to field production and enables production management to become intelligent. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
Claims (1)
1. The utility model provides an energy-conserving energy supervisory systems of hydraulic press hydraulic system which characterized in that: the hydraulic system comprises a three-phase power supply (21), a digital electric meter (22), an input reactor (23), a frequency converter (24), a three-phase asynchronous motor (25), a plunger pump (26), a speed sensor (27), a programmable controller (28), a counter (29) and a man-machine interaction device (210), wherein the input of the frequency converter (24) is connected to the speed sensor (27) to obtain a speed signal of the hydraulic system (1) of the hydraulic machine, the frequency converter (24) is used for obtaining the flow and the pressure required by the hydraulic system (1) of the hydraulic machine according to the speed signal, the output of the frequency converter (24) is used for controlling the rotating speed and the moment of the three-phase asynchronous motor (25) by being connected to the three-phase asynchronous motor (25), the three-phase asynchronous motor (25) is used for dragging the plunger pump (26) to supply oil to the hydraulic system (1) of the hydraulic machine according to the rotating speed and the moment, in, the system is characterized in that a digital electric meter (22) and an input reactor (23) are sequentially connected to a connecting line of a three-phase power supply (21) and a frequency converter (24), the digital electric meter (22) is communicated with a programmable controller (28) through an RS485 interface, the programmable controller (28) is further respectively connected with a counter (29) and a man-machine interaction device (210), at least energy consumption information, yield information, current information and voltage information output by the three-phase power supply (21) are collected through the programmable controller (28) and displayed in the man-machine interaction device (210) in real time, and the man-machine interaction device (210) is connected with the programmable controller (28) to control the oil supply of the hydraulic system (1) of the hydraulic machine and set parameters;
the counter (29) connected to the programmable controller (28) comprises at least:
a first time register for providing a statistical first time period;
the first yield register performs counting when the controller receives a pulse signal sent by the three-phase asynchronous motor which drives the plunger pump to work for one cycle according to the rotating speed and the moment and supplies oil to the hydraulic system of the hydraulic machine;
a first meter reading register for reading the energy consumption recorded on the meter;
the first yield calculation register is used for recording the counting result of the first yield register at the starting time point when the first time period starts;
the first electric quantity calculation register is used for recording the energy consumption recorded by the first electric meter reading register at the starting time point when the first time period starts;
a first yield calculation result register, configured to record, when the first time period ends, a count result obtained by performing a logical subtraction operation on the count result in the first yield register and the count result in the first yield calculation register;
the first electric quantity calculation result register is used for recording a counting result obtained by performing logical subtraction operation on the counting result in the first electric meter reading register and the counting result in the first electric quantity calculation register when the first time period is finished;
wherein, the programmable controller executes the logic subtraction operation, and sends counting results in the first output calculation result register and the first electric quantity calculation result register to the man-machine interaction device (210) for displaying;
the counter (29) connected to the programmable controller (28) comprises at least:
a second time register for providing a statistical second time period;
the second yield register performs counting when the controller receives a pulse signal sent by the three-phase asynchronous motor which drives the plunger pump to work for one cycle according to the rotating speed and the moment and supplies oil to the hydraulic system of the hydraulic machine;
a second meter reading register for reading the energy consumption recorded on the meter;
the second yield calculation register is used for recording the counting result of the second yield register at the starting time point when the second time period starts;
the second electric quantity calculation register is used for recording the energy consumption recorded by the second electric meter reading register at the starting time point when the second time period starts;
a second yield calculation result register, configured to record, when the second time period ends, a count result obtained by performing a logical subtraction operation on the count result in the second yield register and the count result in the second yield calculation register;
the second electric quantity calculation result register is used for recording a counting result obtained by performing logical subtraction operation on the counting result in the second electric meter reading register and the counting result in the second electric quantity calculation register when the second time period is finished;
wherein, the programmable controller executes the logic subtraction operation, and sends counting results in the second output calculation result register and the second electric quantity calculation result register to the human-computer interaction device (210) for displaying;
the counter (29) connected to the programmable controller (28) comprises at least:
a third time register for providing a statistical third time period;
the third yield register performs counting when the controller receives a pulse signal sent by the three-phase asynchronous motor when the three-phase asynchronous motor drives the plunger pump to work for one cycle according to the rotating speed and the torque and supplies oil to the hydraulic system of the hydraulic machine;
a third meter reading register for reading the energy consumption recorded on the meter;
the third yield calculation register is used for recording the counting result of the third yield register at the starting time point when the third time period starts;
the third electric quantity calculation register is used for recording the energy consumption recorded by the third electric meter reading register at the starting time point when the third time period starts;
a third yield calculation result register, configured to record, when the third time period ends, a count result obtained by performing a logical subtraction operation on the count result in the third yield register and the count result in the third yield calculation register;
a third electric quantity calculation result register, configured to record, when the third time period ends, a count result obtained by performing a logical subtraction operation on the count result in the third electric meter reading register and the count result in the third electric quantity calculation register;
the programmable controller executes the logic subtraction operation, and sends counting results in a third yield calculation result register and a third electric quantity calculation result register to a human-computer interaction device (210) for displaying;
the counter (29) connected to the programmable controller (28) comprises at least:
a fourth time register for providing a statistical fourth time period;
the fourth output register performs counting when the controller receives a pulse signal sent by the three-phase asynchronous motor which drives the plunger pump to work for one cycle according to the rotating speed and the moment and supplies oil to the hydraulic system of the hydraulic machine;
a fourth meter reading register for reading the energy consumption recorded on the meter;
the fourth yield calculation register is used for recording the counting result of the fourth yield register at the starting time point when the fourth time period starts;
the fourth electric quantity calculation register is used for recording the energy consumption recorded by the fourth electric meter reading register at the starting time point when the fourth time period starts;
a fourth yield calculation result register, configured to record, when the fourth time period ends, a count result obtained by performing a logical subtraction operation on the count result in the fourth yield register and the count result in the fourth yield calculation register;
a fourth electric quantity calculation result register, configured to record, when the fourth time period ends, a count result obtained by performing a logical subtraction operation on the count result in the fourth electric meter reading register and the count result in the fourth electric quantity calculation register;
and the programmable controller executes the logic subtraction operation, and sends counting results in the fourth yield calculation result register and the fourth electric quantity calculation result register to the human-computer interaction device (210) for displaying.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201728762U (en) * | 2010-06-24 | 2011-02-02 | 东华机械有限公司 | Rubber and plastic machine for real time energy consumption management |
| JP2011117398A (en) * | 2009-12-06 | 2011-06-16 | Tadao Osuga | Engine speed control device |
| CN203376406U (en) * | 2013-04-01 | 2014-01-01 | 北京金清源科技有限公司 | Power-saving monitoring apparatus |
| CN203537296U (en) * | 2013-10-28 | 2014-04-09 | 厦门永宏亚得机电科技有限公司 | Novel energy-saving electrical cabinet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090220352A1 (en) * | 2008-02-29 | 2009-09-03 | Carstensen Peter T | Method and Device for Monitoring and Controlling a Hydraulic Actuated Process |
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- 2016-04-22 CN CN201610250644.5A patent/CN105955156B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011117398A (en) * | 2009-12-06 | 2011-06-16 | Tadao Osuga | Engine speed control device |
| CN201728762U (en) * | 2010-06-24 | 2011-02-02 | 东华机械有限公司 | Rubber and plastic machine for real time energy consumption management |
| CN203376406U (en) * | 2013-04-01 | 2014-01-01 | 北京金清源科技有限公司 | Power-saving monitoring apparatus |
| CN203537296U (en) * | 2013-10-28 | 2014-04-09 | 厦门永宏亚得机电科技有限公司 | Novel energy-saving electrical cabinet |
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