Intelligent monitoring system of asphalt mixing equipment
By installing a current transformer and data processing system on the incoming power supply of the asphalt mixing equipment, the problem of inaccurate power consumption was solved, precise power monitoring and abnormal alarms were achieved, and costs and risks were reduced.
Patent Information
- Application Number
- CN202422112218.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-08-29
AI Technical Summary
Existing asphalt mixing equipment cannot accurately understand the production electricity consumption per ton of asphalt mixture, resulting in inaccurate calculation of electricity consumption, failure to maintain it in time, and increased costs.
Current transformers are installed on the ABC three-phase electricity of each incoming power supply. Through electrical measuring instruments and data processing devices, the current information of each phase is accurately collected, the total power consumption is calculated, and historical comparisons and abnormal alarms are performed through data storage devices.
It achieves precise control of the power consumption of asphalt mixing equipment, timely detects abnormal power consumption, reduces the risk of equipment aging and leakage, and ensures safety and cost control.
Smart Images
Figure CN223362260U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of asphalt processing, and more specifically to an intelligent monitoring system for asphalt mixing equipment. Background Art
[0002] Asphalt mixing plants are equipment used to produce asphalt mixtures and are widely used in road construction. Their main workflow includes aggregate drying, stone screening, heat replenishment, mixing, and finished product storage. In this process, electricity, as one of the primary power sources for driving the equipment, plays a crucial role.
[0003] The annual electricity consumption of an asphalt mixing plant is closely related to factors such as production scale, equipment type, equipment quantity, and production technology. Based on the actual situation of asphalt mixing plants at home and abroad, the annual electricity consumption of an asphalt mixing plant is currently between 1 million and 3 million kWh.
[0004] It can be seen that electricity consumption is a major expense of asphalt mixing equipment, and monitoring the electricity consumption of asphalt mixing equipment production will help manufacturers control equipment costs. Currently, the monitoring of electricity consumption of existing asphalt mixing equipment production is usually done by installing a current transformer on the incoming power supply to collect the incoming power supply current information. However, using a single current transformer to collect the specific current value of each phase of the incoming power supply cannot accurately calculate the current value, resulting in inaccurate subsequent energy consumption calculations and the inability to promptly repair the equipment based on abnormal energy values, resulting in increased costs. In order to obtain a more detailed understanding of the production energy consumption per ton of asphalt mixture and to more accurately control the cost of equipment, there is an urgent need for an intelligent monitoring system for asphalt mixing equipment. Utility Model Content
[0005] The utility model provides an intelligent monitoring system for asphalt mixing equipment to solve the problem that the existing asphalt mixing equipment cannot accurately understand the production power consumption per ton of asphalt mixture.
[0006] The utility model adopts the following technical solutions:
[0007] An intelligent monitoring system for asphalt mixing equipment includes a data acquisition device, a data processing device, a data conversion device, and a data storage device. The data acquisition device includes a current transformer and an electric measuring meter. The asphalt mixing equipment includes at least one incoming power supply line, on which the electric measuring meter is installed. A current transformer is installed corresponding to each of the three phases A, B, C of the incoming power supply line, and each current transformer is communicatively connected to the electric measuring meter. The electric measuring meter is communicatively connected to the data processing device, which is connected to the data storage device via the data conversion device.
[0008] Furthermore, the asphalt mixing plant is provided with several incoming power lines, each of which is equipped with an electric measuring instrument. A current transformer is respectively installed on the ABC three-phase power of each incoming power line, and each current transformer is communicatively connected with its corresponding electric measuring instrument.
[0009] Furthermore, the data storage device is a computer storage device, the data processing device is provided with an RS485 communication interface, the data conversion device is installed in the computer storage device, and is provided with an RS485 to USB data converter.
[0010] Furthermore, the data storage device is a PLC controller, a data conversion device is provided in the PLC controller, and the PLC controller is connected to the data processing device via a COM port.
[0011] Furthermore, the PLC controller is also provided with an LCD display.
[0012] From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages:
[0013] The present invention installs a current transformer on each of the three phases (ABC) of the incoming power supply, which is used to collect current information from each phase of the incoming power supply, convert it into a small current of 0-5A, and transmit it to the electrical measuring instrument in real time. The data processing device processes the voltage and current data of each phase to obtain active power, and then obtains the total power of the incoming power supply. This enables subsequent precise control of the power consumption of the asphalt mixing equipment, allowing users to clearly understand the power consumption data per ton of asphalt mixture, thereby more accurately controlling the cost consumption of the asphalt mixing equipment. In addition, the present invention also uses a data storage device to compare the historical average power consumption with the real-time power consumption, thereby comparing abnormal power consumption. The computer interface alarm then alerts the operator to conduct inspection and maintenance, avoiding waste caused by equipment aging and leakage, and promptly handling dangerous situations, thereby ensuring the safety of personnel and property. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a system block diagram of the utility model.
[0015] Figure 2 This is a system block diagram of the data acquisition device of the utility model.
[0016] Figure 3 This is a system block diagram of the computer storage device of the present utility model.
[0017] Figure 4 This is the system block diagram of the PLC controller of this utility model. DETAILED DESCRIPTION
[0018] The following describes the specific embodiments of the present invention with reference to the accompanying drawings. In order to fully understand the present invention, many details will be described below, but for those skilled in the art, these details are not required to implement the present invention. For well-known components, methods and processes, detailed descriptions are not given here.
[0019] refer to Figure 1 , an intelligent monitoring system for asphalt mixing equipment, including a data acquisition device 1, a data processing device 2, a data conversion device 3 and a data storage device 4.
[0020] Reference Figure 1-Figure 2 The data acquisition device 1 includes a current transformer 13 and an electric meter 12. Based on the original three-phase power supply (A, B, C) on the asphalt mixing plant, one or more incoming power lines 11 are provided on the asphalt mixing plant. Each incoming power line 11 is equipped with an electric meter 12. A current transformer 13 is installed on each of the three phases (A, B, C) of each incoming power line 11. Each current transformer 13 is communicatively connected to its corresponding electric meter 12. The current transformer 13 converts a high current into a low current of 0-5A and transmits the converted 0-5A low current to the electric meter 12. The electric meter 12 sets the corresponding conversion data based on the current transformer's multiplier and is communicatively connected to the data processing device 2.
[0021] Reference Figures 1-4 The data processing device 2 is connected to the data storage device 4 through the data conversion device 3. The data processing device 2 is provided with an RS485 communication interface 31. The current information and voltage information collected by the data processing device 2 through the electric measuring instrument 12 are processed according to the set parameters and displayed in real time. The information is converted by the data conversion device 3 and then transmitted to the data storage device 4.
[0022] Continue to refer to Figure 3-Figure 4 The data storage device 4 includes two storage modes: a computer storage device 41 and a PLC controller 42.
[0023] 1. Data storage device 4 is a computer storage device 41. Data conversion device 3 includes an RS485 to USB data converter 311. Computer storage device 41 stores the calculated data in real time on the computer hard drive via ODBC via PLC controller 42, making it easy for users to copy and print the device's power data.
[0024] 2. The data storage device 4 is a PLC controller 42, which also includes an LCD display 421. The PLC controller 42 is connected to the data processing device 2 via the COM port 32. The data stored in the PLC controller 42 is permanently saved by setting a data address to achieve real-time reading of the data.
[0025] Continue to refer to Figure 2 The collected voltage and current information is used by the current transformer 13 to calculate the combined active energy of the equipment's electrical energy. The total electrical energy of the incoming power supply 11 is calculated using the current transformer's multiplier. The specific formula is: total electrical energy consumed by the asphalt mixing plant = A (electricity meter measurement value * current transformer multiplier) + B (electricity meter measurement value * current transformer multiplier) + C (electricity meter measurement value * current transformer multiplier). Electrical energy consumed per ton = total electrical energy / total output. The obtained data is then converted into a recognizable signal by the data conversion device 3 and transmitted to the data storage device 4. The present invention achieves subsequent precise control of the asphalt mixing plant's electrical energy consumption, allowing users to clearly understand the electrical energy data consumed per ton of asphalt mixture, thereby more accurately controlling the cost consumption of the asphalt mixing plant.
[0026] The above is only a specific implementation method of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.
Claims
1. An intelligent monitoring system for asphalt mixing equipment, comprising a data acquisition device, a data processing device, a data conversion device, and a data storage device, characterized in that: The data acquisition device includes a current transformer and an electric measuring instrument. The asphalt mixing equipment includes at least one incoming power supply, and the electric measuring instrument is installed on the incoming power supply. One current transformer is installed on each of the three phases A, B, and C of the incoming power supply, and each current transformer is communicatively connected to the electric measuring instrument. The electric measuring instrument is communicatively connected to the data processing device, and the data processing device is connected to the data storage device via the data conversion device.
2. The intelligent monitoring system for asphalt mixing equipment according to claim 1, characterized in that: The asphalt mixing equipment is provided with several incoming power lines, each of which is equipped with an electric measuring instrument. A current transformer is respectively installed on the ABC three-phase power of each incoming power line, and each current transformer is communicatively connected with its corresponding electric measuring instrument.
3. The intelligent monitoring system for asphalt mixing equipment according to claim 1, characterized in that: The data storage device is a computer storage device, the data processing device is provided with an RS485 communication interface, and the data conversion device is installed on the computer storage device and is provided with an RS485 to USB data converter.
4. The intelligent monitoring system for asphalt mixing equipment according to claim 1, characterized in that: The data storage device is a PLC controller, the data conversion device is provided in the PLC controller, and the PLC controller is connected to the data processing device via a COM port.
5. The intelligent monitoring system for asphalt mixing equipment according to claim 4, characterized in that: The PLC controller is also provided with an LCD display.