CN210293294U - Voltage sag influence evaluation system for coating process drying process - Google Patents
Voltage sag influence evaluation system for coating process drying process Download PDFInfo
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Abstract
本实用新型公开了一种涂装工艺烘干过程的电压暂降影响评估系统为支撑采用过程免疫时间PIT计算进行涂装工艺烘干过程的电压暂降程度影响评估提供了硬件架构，除了设置第二测量模块采集工艺过程中的电路参数外，还设有第一测量模块用于采集涂装工艺烘干过程的环境参数，再通过处理模块对环境参数进行存储、处理及通过通信模块上传至上位机，上位机即得到了进行过程免疫时间PIT计算所需的输入量，从而可以更好的确定电压暂降对涂装工艺烘干过程的影响，有助于对涂装工艺烘干过程这个工业过程进行有针对性的研发与改进以及对相应的工业用户受电压暂降造成的损失进行风险评估。
The utility model discloses a voltage sag influence evaluation system in the drying process of a coating process, which provides a hardware structure for supporting the evaluation of the influence of the voltage sag in the drying process of the coating process by adopting the process immunity time PIT calculation. In addition to collecting circuit parameters in the process of the second measurement module, a first measurement module is also provided to collect the environmental parameters of the drying process of the coating process, and then the environmental parameters are stored and processed through the processing module and uploaded to the host through the communication module. The upper computer obtains the input required for the PIT calculation of the process immunity time, so that the influence of the voltage sag on the drying process of the coating process can be better determined, which is helpful for the industry of the drying process of the coating process. The process carries out targeted research and development and improvement, and carries out risk assessment on the losses caused by voltage sags for corresponding industrial users.
Description
Technical Field
The utility model relates to an industrial parameter measures technical field, in particular to voltage sag influence evaluation system of coating technology drying process.
Background
The voltage drop may cause an interruption of the electrical connection between the power supply and the consumer, so that the sensitive equipment cannot obtain the electrical energy of the required quality, which may affect or even destroy the continuous operation of the equipment or the industrial production line of the industrial user, with serious losses and damages to the industrial user. How to accurately evaluate the influence of voltage reduction on equipment operation has important significance on production arrangement and post-fault recovery strategy design of industrial user equipment and industrial production lines.
The effect of a voltage sag on a device is typically described using a voltage tolerance curve. Fig. 1 is a voltage withstand graph. As shown in FIG. 1, when the voltage of the device drops to the minimum steady-state DC voltage VminDuration exceeding the maximum duration T of zero voltagemaxThe interruption of the plant operation, i.e. when the characteristic value of the voltage dip (dip amplitude, dip duration) falls in zone 1, causes the plant to trip. The method for describing the effect of a voltage sag shown in fig. 1 is widely used in industrial engineering. When the influence of voltage sag on the equipment is evaluated, the operating voltage value of the equipment is monitored by a voltage measuring instrument, the difference value between the rated voltage value and the operating voltage value of the equipment, namely the sag amplitude value, is calculated by an upper computer, the sag duration time is measured, namely the tolerance time of the equipment under different sag amplitudes (the duration time from reaching the sag amplitude value to tripping/interrupting the equipment) is obtained, and the accumulated data can be used for drawing a voltage tolerance curve shown in fig. 1 for describing the voltage sag sensitivity degree of the equipment, namely the influence effect of the voltage sag on the equipment.
However, for some fields, it is not accurate to describe the degree of influence of voltage sag on the equipment/industrial engineering by using only one judgment basis of tripping/interrupting of the equipment. In the drying process of the coating process, when judging whether the voltage sag influences the process, the wind speed of the dryer, the temperature of the drying chamber and the like are important indexes which reflect the influence on the process flow. Thus, the report issued by CIGRE working group C4.110 sets forth "Process Immunity Time (PIT)" to describe the immunity of equipment in which the industrial process is below a voltage sag.
Process Immunity Time (PIT) is a quantitative method of immunity of a device that describes that an industrial process is below a voltage sag, defined in particular as the time from the start of a voltage interruption until an environmental parameter exceeds an allowable limit (below a threshold). FIG. 2 is a graph of immunization time for a procedure. As shown in FIG. 2, the physical parameters of the process, P, affected or controlled by the plant are typically used as environmental parameters, P, of the PITnomIs a normal environmental parameter value; plimitThe lowest boundary for an environmental parameter may be determined by safety requirements, or as a limit to prevent damage to process equipment, or to simply flag a change in the environmental parameter that results in a product defect; t is t1Is the time during which a voltage interruption occurs, after which the device typically experiences a time delayΔtThen, the environmental parameters begin to deviate; t is t2Crossing the lowest boundary P for an environmental parameterlimitThe time corresponding to the parameter being lower than the normal operation value of the process and reaching unacceptable degree; t ═ t2-t1Process immunization time for the device/industrial process. Through the process immunization time of the equipment/industrial process, the influence of the voltage sag on the equipment/industrial process can be more accurately determined, which is beneficial to carrying out targeted research and development and improvement on the equipment/industrial process and carrying out risk assessment on loss of industrial users caused by the voltage sag.
However, there is no complete framework for executing the calculation of the immune time PIT in the process in the prior art, so that the voltage sag influence evaluation method more conforming to the drying process of the coating process does not have an implementation basis.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a voltage sag influence evaluation system of coating technology stoving process for the influence that better aassessment voltage sag caused to coating technology stoving process.
For solving the technical problem, the utility model provides a voltage sag influence evaluation system of coating technology drying process, including the first measuring module who is used for gathering the environmental parameter of coating technology drying process, be used for gathering the second measuring module of the circuit parameter of coating technology drying process, with first measuring module with what second measuring module connected is used for the storage and handles according to predetermineeing the rule environmental parameter with the processing module of circuit parameter, with the communication module who is used for with host computer communication that processing module connects, and be used for according to environmental parameter with the circuit parameter carries out the calculation of process immunity time PIT host computer.
Optionally, the first measurement module specifically includes a rotational speed and torque measurement instrument and a wind speed measurement instrument which are arranged in the blower, and a first temperature sensor and a humidity sensor which are arranged in the drying chamber.
Optionally, the rotating speed and torque measuring instrument is specifically a JN338-V measuring instrument.
Optionally, the first measuring module further includes a second temperature sensor and a light intensity measuring module, which are disposed on the baking lamp.
Optionally, the light intensity measuring module specifically includes a TSL2561 light intensity sensor.
Optionally, the second measurement module specifically includes sub-measurement modules respectively disposed in each control module of the coating process drying process;
wherein the sub-measurement module comprises a voltage measurement module and a current measurement module.
Optionally, the communication module is specifically a wireless communication module.
Optionally, the communication module specifically includes at least one of a Wi-Fi communication module, a GSM communication module, a GPRS communication module, and a bluetooth communication module.
Optionally, the system further comprises a display module connected to the processing module and used for displaying the environmental parameter.
Optionally, the display module is specifically an LED display module.
The utility model provides a pair of voltage sag influence evaluation system of coating technology drying process, including the first measuring module who is used for gathering the environmental parameter of coating technology drying process, a second measuring module for gathering the circuit parameter of coating technology drying process, be used for the storage and according to the processing module who predetermines rule processing environment parameter and circuit parameter who is connected with first measuring module and second measuring module, be used for with host computer communication's communication module with processing module is connected to and be used for carrying out the calculation of process immunity time PIT according to environmental parameter and circuit parameter host computer. The utility model discloses a voltage sag influence evaluation system adopts the immune time PIT of process to calculate the voltage sag degree influence that carries out coating technology drying process for supporting and assesses and provides hardware architecture, except setting up the circuit parameter in the second measuring module collection process, still be equipped with the environmental parameter that first measuring module is used for gathering coating technology drying process, rethread processing module saves environmental parameter, handle and upload to the host computer through communication module, the host computer has obtained promptly and has carried out the required input of the immune time PIT of process calculation, thereby can be better confirm the influence of voltage sag to coating technology drying process, help carrying out corresponding research and development and improvement and carry out the risk assessment to the loss that corresponding industrial user caused by voltage sag to this industrial process of coating technology drying process.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the 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 to those skilled in the art that other drawings can be obtained from the drawings without inventive work.
FIG. 1 is a voltage tolerance graph;
FIG. 2 is a graph of immunization time for a procedure;
fig. 3 is a schematic structural diagram of a voltage sag influence evaluation system in a coating process drying process according to an embodiment of the present invention;
fig. 4 is a signal transmission schematic diagram of a voltage sag influence evaluation system in a coating process drying process provided by the embodiment of the present invention.
Detailed Description
The core of the utility model is to provide a voltage sag influence evaluation system of coating technology stoving process for the influence that better evaluation voltage sag caused to coating technology stoving process.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 3 is a schematic structural diagram of a voltage sag influence evaluation system in a coating process drying process provided by an embodiment of the present invention.
As shown in fig. 3, the embodiment of the utility model provides a voltage sag influence evaluation system of coating technology drying process is including the first measuring module 101 that is used for gathering the environmental parameter of coating technology drying process, a second measuring module 102 for gathering the circuit parameter of coating technology drying process, the processing module 103 that is used for the storage and processes environmental parameter and circuit parameter according to predetermineeing rule that is connected with first measuring module 101 and second measuring module 102, the communication module 104 that is used for communicating with host computer 105 that is connected with processing module 103, and be used for carrying out the host computer 105 that process immunity time PIT calculated according to environmental parameter and circuit parameter.
As a novel equipment immunity evaluation method, a process immunity time PIT evaluation method is not widely applied in industry at present, a complete and mature monitoring system does not detect industrial environment parameters at present, and the proposal and establishment of an industrial environment parameter testing system are very urgent.
The drying process of the coating process is influenced by not only power supply factors but also various environmental factors, and the drying machine, the baking lamp and the like involved in the industrial process are influenced by the power supply quality and influence the environment of the drying chamber, and the environment of the drying chamber directly influences the process effect. Therefore, the environmental parameters and the circuit parameters in the drying process of the coating process are process parameters required for calculating the process immune time PIT in the drying process of the coating process.
The embodiment of the utility model provides a voltage sag influences evaluation system has set up the first measuring module 101 that is used for gathering environmental parameter and the second measuring module 102 that is used for gathering circuit parameter to coating technology drying process, has realized providing required process parameter for the process immunity time PIT calculation of coating technology drying process from hardware architecture.
In a specific implementation, the first measuring module 101 specifically includes a rotation speed and torque measuring instrument and a wind speed measuring instrument disposed in the blower, and a first temperature sensor and a humidity sensor disposed in the drying chamber. The first measurement module 101 may further comprise a rotational speed and torque measuring instrument for measuring rotational speed and torque of the motor of the other device.
The rotating speed and torque measuring instrument can adopt a JN338-V measuring instrument and is used for measuring the rotating speed and the torque of the motor of the blower fan, and the wind speed measuring instrument is used for measuring the output wind speed of the blower fan. First temperature sensor and humidity transducer can all set up a plurality ofly, correspond and set up a plurality of temperatures, humidity sampling point in the drying chamber.
The first measuring module 101 may further include a second temperature sensor provided at the broil lamp and a light intensity measuring module.
The first temperature sensor and the second temperature sensor may each employ a pt100 temperature sensor.
The first temperature sensor and the humidity sensor which are arranged in the drying chamber can also adopt an SHT35 temperature and humidity sensor which integrates the temperature sensor and the humidity sensor.
The light intensity measuring module can adopt a TSL2561 light intensity sensor.
The second measurement module 102 specifically comprises sub-measurement modules which are respectively arranged in each control module in the drying process of the coating process;
the sub-measurement module comprises a voltage measurement module and a current measurement module.
And a group of voltage measuring modules and current measuring modules are arranged for each control module and used for collecting circuit parameters such as voltage, current and the like. The control module may be specifically a programmable controller PLC for performing overall control, a servo transmission ASD for controlling the blower based on control of the programmable controller PLC and then controlling the blower, an AC contactor for controlling the baking lamp and the lighting device based on control of the programmable controller PLC, and the like.
For different manufacturers, the industrial flowcharts are not completely the same, but the sensitive device parameters to be collected are generally consistent, and the settings of the types and the numbers of the measurement elements in the first measurement module 101 and the second measurement module 102 may be selected according to the actual application scenario.
The processing module 103 is configured to perform functions such as format conversion, aggregation, storage, and uploading on the data acquired by the first measurement module 101 and the second measurement module 102, and execute corresponding operations according to an instruction issued by the upper computer 105.
The communication module 104 may specifically be a wireless communication module 104, configured to perform interaction between the processing module 103 and the upper computer 105, and specifically may adopt a Wi-Fi communication module 104, a GSM communication module 104, a GPRS communication module 104, a bluetooth communication module 104, and the like. The communication module 104 performs communication based on an ethernet communication protocol, and in order to ensure effective transmission of data, a PROFINET communication protocol may be used.
For site personnel looks over, the embodiment of the utility model provides a voltage sag influence evaluation system of coating technology stoving process can also include the display module who is used for showing environmental parameter who is connected with processing module 103, and display module can adopt LCD display module, LED display module etc..
The voltage sag influence evaluation system disclosed by the embodiment of the utility model provides a hardware framework for supporting the evaluation of the voltage sag degree influence in the drying process of the coating process by adopting the process immunity time PIT calculation, besides setting a second measuring module for collecting the circuit parameters in the process, a first measuring module is also arranged for collecting the environmental parameters in the drying process of the coating process, then the processing module stores and processes the environmental parameters and uploads the environmental parameters to the upper computer through the communication module, the upper computer obtains the input quantity required by the process immunity time PIT calculation, therefore, the influence of the voltage sag on the drying process of the coating process can be better determined, and the targeted research, development and improvement on the industrial process of the drying process of the coating process and the risk assessment on the loss of corresponding industrial users caused by the voltage sag are facilitated.
Fig. 4 is a signal transmission schematic diagram of a voltage sag influence evaluation system in a coating process drying process provided by the embodiment of the present invention.
On the basis of the above embodiment, it is right to combine the signal transmission schematic diagram shown in fig. 4 that the embodiment of the utility model provides a coating process dries voltage sag influence evaluation system of process and application scene thereof further explains, wherein, the dotted line represents signal transmission.
In the on-site environment monitoring system of the coating process drying process, an upper computer 105 (PC)1……PCn) The system is characterized in that the system is interactive with a field environment based on Ethernet, a Programmable Logic Controller (PLC) is connected through a switch, and the PLC and a control module are communicated through a remote input/output (IO) module. The remote IO module may be a distributed IO module. The programmable controller PLC communicates with the distributed IO module and the programmable controller PLC through a real-time protocol, and the upper computer 105 configuration software communicates with the programmable controller PLC through a traditional process Ethernet protocol and exchanges data through a switch. Therefore, the programmable logic controller PLC and the switchboard can be integrated to be used as a transmission control electrical cabinet. Based on PROFINET communication protocol, communication between the PLC of the main station and each control module is realized through IP addresses, and then the ASD, the motor and the like of the servo transmission are controlled.
On this basis, the embodiment of the utility model provides a processing module 103 among coating process drying process's voltage sag influence evaluation system specifically includes the serial servers who connects data transmission between each control module (like servo transmission ASD, AC contactor) and the output module of controlled module (like pressure fan, roast lamp, lighting device) and host computer 105 respectively, and serial servers's working method is TCP-Server mode.
The first measuring module 101 and the second measuring module 102 realize real-time monitoring of industrial process parameters of the coating process drying process. The processing module 103 processes and stores the environmental parameters acquired by the first measuring module 101 and the circuit parameters acquired by the second measuring module 102, and makes a basic data reserve for the process immunity time PIT analysis of the sensitive equipment in the coating process drying process. The processing module 103, the first measuring module 101 and the second measuring module 102 are all provided with communication interfaces to realize data communication between the processing module 103 and the measuring module. Meanwhile, the processing module 103 receives a control instruction of the remote upper computer 105 through the communication module 104, and uploads the environmental parameter and the circuit parameter to the upper computer 105.
It is right above that the utility model provides a coating process stoving process's voltage sag influence evaluation system has carried out the detailed introduction. The embodiments are described in a progressive manner, the emphasis of each embodiment is different from that of other embodiments, and the same and similar parts among the embodiments are referred to each other.
It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285410A (en) * | 2020-09-29 | 2021-01-29 | 国网宁夏电力有限公司中卫供电公司 | Method, medium and system for estimating severity of voltage sag |
| CN113568355A (en) * | 2021-08-05 | 2021-10-29 | 格力电器（武汉）有限公司 | Production line parameter monitoring method and system |
-
2019
- 2019-08-28 CN CN201921425015.7U patent/CN210293294U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285410A (en) * | 2020-09-29 | 2021-01-29 | 国网宁夏电力有限公司中卫供电公司 | Method, medium and system for estimating severity of voltage sag |
| CN112285410B (en) * | 2020-09-29 | 2022-07-01 | 国网宁夏电力有限公司中卫供电公司 | A method, medium and system for estimating voltage sag severity |
| CN113568355A (en) * | 2021-08-05 | 2021-10-29 | 格力电器（武汉）有限公司 | Production line parameter monitoring method and system |
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