TWI703531B - Evaluation device - Google Patents

Abstract

This invention provides an evaluation device which includes a data collecting section for collecting information relating to control of a driving section of a plant, and an optimum value calculation section that calculates an optimum energy usage amount of the driving section as an energy usage amount after energy-saving measures based on the collected information. Thereby, the provided evaluation device can evaluate an effect of energy-saving control by comparing the energy usage amount after the energy-saving measures with an energy usage amount if the energy-saving measures are not implemented, before energy-saving measures are implemented.

Description

Evaluation device

The embodiment of the present invention relates to an evaluation device for evaluating the effect of energy-saving control of equipment.

For example, during the operation of equipment such as rolling equipment, energy-saving control to suppress power consumption is performed. In addition, there is known an evaluation device which is formed to estimate the operation of the equipment when the energy saving measures are not implemented during the period after the energy saving measures, and compare the estimated equipment operation with the actual equipment operation after the energy saving measures. And evaluate the effect of energy-saving control (for example, Patent Document 1).

The evaluation device can compare the actual value of energy use when energy-saving measures are applied with the estimated value of energy use when energy-saving measures are not implemented during the period after energy-saving measures to evaluate the energy-saving effect. On the other hand, in the period before the energy-saving measures, it is impossible to compare the energy consumption after the energy-saving measures with the energy consumption when the energy-saving measures are not implemented, and the energy-saving effect cannot be evaluated. There is still room for review in this respect.

[Prior Technical Literature] [Patent Literature]

[Patent Document 1] JP 2012-38054 A

The embodiment of the present invention provides an evaluation device that can compare the energy consumption after the energy saving measures with the energy consumption when the energy saving measures are not implemented during the period before the energy saving measures to evaluate the effect of the energy saving control.

According to an embodiment of the present invention, an evaluation device can be provided, which is provided with: a data collection unit that collects information related to the control of the drive unit of the device; an optimal value calculation unit that calculates based on the collected information The most appropriate energy usage of the aforementioned drive unit is used as the energy usage after energy saving measures.

According to an embodiment of the present invention, an evaluation device is provided that can compare the energy usage after the energy saving measures with the energy usage when the energy saving measures are not implemented during the period before the energy saving measures, and evaluate the effect of the energy saving control.

10‧‧‧Evaluation device

12‧‧‧Data Collection Department

14‧‧‧Optimal value calculation department

16‧‧‧Optimal value memory

18‧‧‧Actual usage calculation department

20‧‧‧Actual usage memory

22‧‧‧Display

100‧‧‧Equipment Pump System

102‧‧‧Pump

104‧‧‧Drive

106‧‧‧Valve

108‧‧‧Control Department

120‧‧‧Communication line

140‧‧‧Collect piping valve information

142‧‧‧The location information of the rolled material

144‧‧‧Material information of rolled material

Steps S01 to S06‧‧‧

WS‧‧‧Fluid supply source

Fig. 1 is a block diagram schematically showing the evaluation device of the embodiment.

Figure 2 is a block diagram schematically showing the plant pump system of the embodiment.

Figure 3 schematically shows the operation of the optimal value calculation unit of the embodiment The flow chart of the specific example.

Hereinafter, each embodiment will be described with reference to the drawings.

In addition, the drawings are schematic or conceptual, and the relationship between the thickness and the width of each part and the ratio of the sizes between the parts may not be the same as the actual product. Moreover, even when the same parts are represented, the sizes and ratios of each other may be displayed in different ways according to the drawing.

In addition, in the specification of the present application and each figure, the same reference numerals are given to the elements related to the existing figures and the same as those described above, and detailed descriptions are appropriately omitted.

Fig. 1 is a block diagram schematically showing the evaluation device of the embodiment.

As shown in FIG. 1, the evaluation device 10 includes a data collection unit 12, an optimal value calculation unit 14, an optimal value storage unit 16, an actual usage amount calculation unit 18, an actual usage amount storage unit 20, and a display unit 22. These parts may be installed in one device, or may be configured as separate devices and connected to each other through a network or the like.

The evaluation device 10 is connected to the equipment pump system 100 of the calendering equipment. The evaluation device 10 is formed to evaluate the effect of energy saving control in the equipment pump system 100 of the calendering equipment.

The equipment pump system 100 is, for example, a pump system of a descaling system that sprays high-pressure water toward the material to be rolled to remove foreign matter such as scale attached to the surface of the material to be rolled. Equipment pump The system 100 may be, for example, a pump system or the like of a cooling system that supplies cooling water to the material to be rolled to cool the material to be rolled.

Figure 2 is a block diagram schematically showing the equipment pump system of the embodiment.

As shown in FIG. 2, the facility pump system 100 includes a pump 102, a driving unit 104, a valve 106, and a control unit 108. In addition, in Figure 2, the arrow on the piping path indicates the direction of water flow.

The pump 102 is connected to a fluid supply source WS. The fluid supply source WS is, for example, a water supply source for supplying water. In addition, the pump 102 is connected to the driving unit 104. The driving unit 104 supplies driving force to the pump 102. The pump 102 is driven in accordance with the driving force supplied from the driving unit 104, and applies a predetermined pressure and flow rate to the water of the fluid supply source WS to supply it to the downstream side. The pump 102 supplies high-pressure water to a descaling header or the like in accordance with the driving of the driving unit 104, for example.

The pump 102 is, for example, a scroll pump. For example, an electric motor is used for the drive unit 104. The driving unit 104 supplies the driving force for rotating the impeller of the pump 102 to the pump 102 to rotate the impeller, thereby driving the pump 102. In addition, the supply of driving force to the pump 102 is not limited to an electric motor, and other power sources such as hydraulic actuators may be used. The drive unit 104 only needs to be selected according to the type of the pump 102. In addition, the driving part 104 can also be incorporated in the pump 102.

The driving unit 104 is electrically connected to the control unit 108. The control unit 108 controls the operation of the drive unit 104. For example, when the driving part 104 is a motor, the control part 108 is controlled by a voltage applied to the driving part 104. The number of revolutions of the driving unit 104 is controlled. Thereby, the control unit 108 controls the driving of the pump 102. In other words, the control unit 108 controls the pressure of the high-pressure water supplied to the rust removal header or the like.

The valve 106 is provided on the piping path on the downstream side of the pump 102. The valve 106 is connected to the control unit 108. The valve 106 controls the opening and closing of the piping path under the control of the control unit 108. Thereby, the valve 106 controls the supply and stop of the supply of high-pressure water to the rust removal header and the like. The valve 106 uses, for example, a pressure relief valve or a minimum flow valve.

The pump 102, the drive unit 104, and the valve 106 are provided in plural in the facility pump system 100, respectively. In the facility pump system 100, the pressure of high-pressure water is controlled by driving a plurality of pumps 102. In addition, in the facility pump system 100, the operations of each pump 102 and each drive unit 104 are controlled according to the required pressure, thereby achieving energy saving. The number of pumps 102 and the like provided in the equipment pump system 100 can be arbitrarily set according to the required pressure. The number of pumps 102 and the like provided in the facility pump system 100 may be, for example, one each. It is also possible to switch between high-speed operation and standby operation of one pump 102 to achieve energy saving.

Each of the plurality of pumps 102 uses, for example, a pump having the same rating. Similarly, for each of the plurality of driving parts 104, for example, driving parts (motors) of the same rated value are used. Thereby, the variation of the pressure of the water supplied from each pump 102 is suppressed, for example.

The data collection unit 12 of the evaluation device 10 collects information related to the control of each drive unit 104 from the equipment pump system 100. The data collection part 12 is connected to the equipment pump system 100 through the communication line 120, and Information is collected via the communication line 120. The communication line 120 may be wired or wireless.

The data collection unit 12 collects at least, for example, piping valve information 140, material position information 142 to be rolled, and material material information 144 to be rolled. The data collection unit 12 collects the above-mentioned information from the control unit 108 of the equipment pump system 100, for example. In other words, the control unit 108 uploads each information to the data collection unit 12 and inputs each information to the data collection unit 12. The data collection unit 12 may collect the above-mentioned information from, for example, a higher-level controller that controls the operation of the control unit 108.

The piping valve information 140 is information indicating the opening and closing of each valve 106. The material to be rolled position information 142 is information showing the position on the rolling line of the material to be rolled. The position information 142 of the material to be rolled is based on the point extracted from the heating furnace, for example. The material information 144 of the material to be rolled shows the material of the material to be rolled. The material information 144 of the material to be rolled indicates the physical properties such as the surface and strength of each material to be rolled into a final product. The material of the material to be rolled is determined before the material is rolled. However, the information collected by the data collection unit 12 is not limited to the above content, and may be any other information related to the control of the drive unit 104.

The optimum value calculation unit 14 calculates the optimum flow rate that satisfies the desired physical properties of the material to be rolled from the collected piping valve information 140, material position information 142 of the rolled material, and material material information 144 of the material to be rolled. Then, the optimal value calculation unit 14 calculates the optimal value of the required energy usage from the calculated optimal flow rate. The optimal value calculation unit 14 converts, for example, the optimal energy usage into minutes, hours, days, months, and years, The calculated optimal energy usage amount is stored in the optimal value storage unit 16 as the energy usage amount after energy saving measures.

The actual usage calculation unit 18 calculates the actual energy usage from the piping valve information 140, the rolled material position information 142, and the rolled material material information 144 collected by the data collection unit 12. The actual usage amount calculation unit 18 stores the calculated actual energy usage amount in the actual usage amount storage unit 20 as the energy usage amount before energy saving measures. The actual usage calculation unit 18 generates a link between the calculated actual energy usage and the information obtained by classifying the operation data of each pump 102 in detail, and stores the link in the actual usage storage unit 20.

The display unit 22 reads the most appropriate energy usage amount memorized in the optimal value memory unit 16 and the actual energy usage amount memorized in the actual usage amount memory unit 20, and compares the most appropriate energy usage amount with the actual energy usage The usage amount is displayed in a comparable way. The display unit 22 has a screen, for example, and displays the most appropriate energy usage amount and the actual energy usage amount on the screen in a comparable manner.

The most appropriate energy usage amount memorized in the optimal value memory unit 16 is, in other words, the energy usage amount after energy saving measures. The actual energy use amount memorized in the actual use amount storage unit 20 is, in other words, the energy use amount before the energy saving measures. Therefore, by comparing the most appropriate energy usage with the actual energy usage and displaying it, the effect of energy saving control can be visualized.

Fig. 3 is a flowchart schematically showing a specific example of the operation of the optimal value calculation unit of the embodiment.

As shown in Fig. 3, when the optimal value calculation unit 14 calculates the most appropriate energy consumption, first, the data collection unit 12 collects the piping valve information 140 and the rolled material position information 142 in real time. , And material information 144 of the material to be rolled (Step S01 in Fig. 3).

The optimum value calculation unit 14 collects various information and calculates the total actual flow rate of the equipment pump system 100 from the opening and closing data indicated by the piping valve information 140 and the pre-stored rated value flow rate data of each pump 102 (Fig. 3 Step S02).

The optimum value calculation unit 14 calculates the optimum pump speed of each pump 102 from the calculated total actual flow rate and the pump characteristic information of each pump 102 stored in advance (step S03 in Fig. 3). The pump characteristic information is, for example, a performance graph showing the relationship between the delivery volume, pressure, and rotation speed of each pump 102.

The optimum value calculation unit 14 calculates the power required for the optimum pump rotation speed from the calculated optimum pump rotation speed (step S04 in Fig. 3).

The optimal value calculation unit 14 aggregates the calculated power in minutes, hours, days, months, and years, thereby calculating energy usage (power amount) (step S05 in Fig. 3).

Then, the optimal value calculation unit 14 stores the calculated energy use amount as the most appropriate energy use amount after energy saving measures in the optimal value storage unit 16 (step S06 in FIG. 3). The optimal value calculation unit 14 connects, for example, the calculated energy usage with the material position information 142 and material information 144 of the material to be rolled and memorizes them in the optimal value memory unit. 16.

Next, a specific example of the actual usage amount calculation unit 18 will be described.

The actual usage calculation unit 18 classifies the combination of operation data of each pump 102 based on the opening and closing data indicated by the piping valve information 140 collected by the data collection unit 12, for example. Then, the actual usage calculation unit 18 calculates the energy usage before energy saving measures from the piping valve information 140, the rolled material position information 142, and the rolled material material information 144 collected by the data collection unit 12, and uses It is linked with the classification of the combination of the operation data of each pump 102 and is stored in the actual usage amount storage unit 20.

The actual usage amount calculation unit 18, for example, refers to the actual usage amount memory unit 20 and finds the energy usage amount of the same operation mode from the actual usage amount memory unit 20, thereby calculating the energy usage amount as the energy usage amount before energy saving measures .

In this way, in the evaluation device 10 of the present embodiment, the most appropriate energy usage stored in the optimal value storage unit 16 can be compared with the actual energy usage stored in the actual usage storage unit 20 and displayed on the display unit twenty two. Thereby, in the evaluation device 10, the energy consumption after the energy saving measures can be compared with the energy consumption when the energy saving measures are not implemented in the period before the energy saving measures, and the effect of the energy saving control can be evaluated.

Furthermore, in this embodiment, although the calendering equipment is taken as an example for description, the equipment may be any other equipment that uses a plurality of pumps and supplies fluid through pipes.

In addition, in this embodiment, although the drive pump 102 is The drive unit 104 is described as an example, but the drive unit may be any other drive unit related to the operation of the device. For example, the drive unit may be a drive unit for driving a fan that cools the material to be rolled in the rolling equipment.

Above, the embodiments of the present invention have been described with reference to specific examples. However, the embodiments of the present invention are not limited to these specific examples. For example, the specific configuration of the data collection unit, the optimal value calculation unit, the optimal value storage unit, the actual usage amount calculation unit, the actual usage amount storage unit, and the display unit included in the evaluation device, as long as it is in the technical field Those with ordinary knowledge can appropriately select from the known range and implement the present invention in the same manner to obtain the same effect, and it is also included in the scope of the present invention.

In addition, as long as the gist of the present invention is included, a combination of any two or more elements of each specific example within a technically possible range is also included in the scope of the present invention.

In addition, as long as the gist of the present invention is included, all evaluation devices implemented by those skilled in the art according to the evaluation device described in the embodiment of the present invention appropriately change the design and fall within the scope of the present invention.

In addition, with regard to various variations and modifications that can be thought of within the scope of the idea of the present invention by those with ordinary knowledge in the technical field, these variations and modifications of course also belong to the scope of the present invention.

Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel implementation forms can be implemented in various other forms, In addition, various omissions, substitutions, and changes can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the invention described in the patent application and its equivalent scope.

10‧‧‧Evaluation device

12‧‧‧Data Collection Department

14‧‧‧Optimal value calculation department

16‧‧‧Optimal value memory

18‧‧‧Actual usage calculation department

20‧‧‧Actual usage memory

22‧‧‧Display

100‧‧‧Equipment Pump System

120‧‧‧Communication line

140‧‧‧Collect piping valve information

142‧‧‧The location information of the rolled material

144‧‧‧Material information of rolled material

Claims (3)

An evaluation device is provided with: a data collection unit which collects information related to the control of the drive unit of the equipment; and an optimal value calculation unit which calculates the most appropriate energy for the drive unit based on the collected information The amount used is the amount of energy used as an energy-saving measure; the aforementioned equipment is a calendering equipment for calendering the material to be rolled; the aforementioned calendering equipment has: a pump for supplying water to the aforementioned material to be rolled; and a valve for use To switch between the supply and stop of the water supply to the material to be rolled; the drive unit drives the pump of the rolling equipment; the data collection unit collects at least: piping valve information, which indicates the opening and closing of the valve; the position of the material to be rolled The information shows the position on the rolling line of the aforementioned material to be rolled; and the material information of the material to be rolled shows the material of the aforementioned material to be rolled; the aforementioned optimum value calculation unit is based on the aforementioned piping valve information, the aforementioned information on the position of the material to be rolled, and Based on the material information of the material to be rolled, the actual flow rate of the rolling equipment is calculated, and the most appropriate energy consumption relative to the actual flow of the rolling equipment is calculated as the energy consumption after the energy saving measures. For example, the evaluation device described in item 1 of the scope of patent application is further equipped with: an optimal value memory unit for memorizing the energy consumption after the aforementioned energy saving measures; The actual usage calculation unit is based on the collected information to calculate the actual energy usage as the energy usage before the energy saving measures; the actual usage memory unit is used to memorize the energy before the energy saving measures Usage; and the display unit, which displays the energy usage after the aforementioned energy-saving measures and the energy usage before the aforementioned energy-saving measures in a comparable manner. The evaluation device described in item 1 or 2 of the scope of patent application, wherein the data collection unit is connected to the equipment through a communication line, and collects the information through the communication line.

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