Phase advancer with thyristor pressure detection function

Abstract

The utility model relates to a phase advancer with a thyristor pressure detection function, and relates to the technical field of phase advancers. The phase advancer comprises a phase advancer body, a pressure detection unit is arranged between a thyristor and a cooling fin in the phase advancer body, the pressure detection unit is in communication connection with a control module, and a small automatic control system is further arranged outside the phase advancer. The pressure detection unit and the control module are both in communication connection with the small automatic control system. According to the invention, the pressure between the thyristor and the cooling fin can be detected in real time, the thyristor can be maintained in time, and the working efficiency of the phase advancer can be ensured.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of phase advancers, in particular to a phase advancer with thyristor pressure detection. BACKGROUND

[0002] The phase advancer is an on-site reactive power compensation device for energy saving and consumption reduction design of large and medium-sized wound asynchronous motors. The phase advancer is connected in series in the rotor loop of the motor, changes the phase of the rotor current and thus changes the phase of the stator current, can improve the power, can reduce the stator current, can improve the load capacity of the motor, and plays an important role in the production line of micro-powder of slag. However, in the prior art, due to excessive vibration of the mill, a gap is generated between the thyristor and the heat sink in the phase advancer, thereby causing partial discharge, which easily leads to breakdown of the thyristor and affects the normal work of the phase advancer. Such a phenomenon occurs from time to time in the work site, and since the thyristor is installed in the phase advancer, the problem cannot be found in time during inspection, resulting in an increase in maintenance cost. Based on the above reasons, the application provides a phase advancer with thyristor pressure detection to solve the above problems. CONTENT OF THE UTILITY MODEL

[0003] In order to detect the pressure between the thyristor and the heat sink in real time and maintain the thyristor in time to ensure the working efficiency of the phase advancer, the application provides a phase advancer with thyristor pressure detection.

[0004] The phase advancer with thyristor pressure detection provided by the application adopts the following technical scheme:

[0005] The phase advancer with thyristor pressure detection comprises a phase advancer body, a pressure detection unit is arranged between a thyristor and a heat sink in the phase advancer body, a control module is in communication connection with the pressure detection unit, a small automatic control system is further arranged outside the phase advancer, and the pressure detection unit and the control module are in communication connection with the small automatic control system.

[0006] By adopting the above technical scheme, the pressure detection unit can detect the pressure between the thyristor and the heat sink in real time, so that signal feedback can be obtained in time when the thyristor is partially discharged and broken down, and then the operator can maintain the phase advancer to ensure that the phase advancer can work normally.

[0007] Preferably, the pressure detection unit adopts a pressure sensor gasket, and the pressure detection unit is arranged at a place where a cathode of the thyristor contacts the heat sink.

[0008] By adopting the above technical scheme, the pressure sensor gasket has a small structure size and is convenient to install at the place where the cathode of the thyristor contacts the heat sink, and has high practicability.

[0009] Preferably, the phase advancer body is provided with a plurality of groups of thyristors and radiators, and a pressure detection unit is arranged between each group of the thyristors and the radiators, and each pressure detection unit is in communication connection with a small automatic control system.

[0010] By adopting the above technical solution, the number of thyristors and radiators in different types of phase advancers is inconsistent, and the pressure detection unit is arranged based on the number of thyristors to facilitate accurate monitoring of each thyristor, so as to real-time feedback the working state of the thyristor, facilitate timely informing the operator for maintenance when a thyristor is broken down, improve the accuracy of the phase advancer, and ensure the normal operation of the phase advancer.

[0011] Preferably, the small automatic control system is in communication connection with an engineer station, and the small automatic control system feeds back the working state of the phase advancer to the engineer station in real time based on the detection result of the pressure detection unit.

[0012] By adopting the above technical solution, the small automatic control system and the engineer station are in communication connection, so that man-machine interaction can be realized, the detection result can be timely informed to the operator, the period and cost of checking or maintaining the thyristor in the phase advancer are reduced, and the normal work of the phase advancer on the production line is ensured.

[0013] Preferably, the small automatic control system comprises an IO module and a CPU module, the IO module is used for receiving the detection result of the pressure detection unit and generating an analog signal, and the CPU module is used for feeding back the analog signal to the engineer station.

[0014] By adopting the above technical solution, the signal collected by the pressure detection module is connected to the IO module, and the analog signal is sent to the touch screen of the smart device carried by the engineer or the engineer station through the control module and the CPU module, so as to further save the time of the operator for obtaining the working state of the thyristor and the phase advancer, and improve the maintenance efficiency.

[0015] Preferably, the control module adopts a main system PLC of a slag powder mill.

[0016] By adopting the above technical solution, accurate processing of the signal detected by the pressure detection module can be realized.

[0017] Preferably, the control module adopts a single-machine phase advancer system PLC.

[0018] By adopting the above technical solution, accurate processing of the signal detected by the pressure detection module can be realized.

[0019] Preferably, the control module comprises a signal receiving submodule, a signal processing submodule and a signal utilization submodule, and is configured to receive, process and utilize signals between the pressure detection unit and the small-sized automatic control system.

[0020] By adopting the above technical solution, the problem that the thyristor inside the phase advancer cannot be found to be broken down during inspection is solved in cooperation with the small-sized automatic control system, and the maintenance period is shortened.

[0021] In summary, the present application has at least one of the following beneficial technical effects:

[0022] 1. The pressure detection unit can detect the pressure between the thyristor and the heat sink in real time, so that signal feedback can be obtained in time when the thyristor is partially discharged and broken down, and then the operator can maintain the phase advancer to ensure that the phase advancer can work normally;

[0023] 2. The pressure sensor gasket structure is small in size, and is convenient to install at the place where the cathode of the thyristor contacts the heat sink, and has high practicability;

[0024] 3. The number of thyristors and heat sinks inside phase advancers of different models is inconsistent, and the pressure detection unit is arranged based on the number of thyristors to facilitate accurate monitoring of each thyristor, so as to feed back the working state of the thyristor in real time, and to timely inform the operator to maintain when a thyristor is broken down, thereby improving the accuracy of the phase advancer of the present application and ensuring the normal operation of the phase advancer. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic view of a phase advancer with thyristor pressure detection according to an embodiment of the present application.

[0026] Figure 2 is a structural schematic view of a thyristor, a heat sink and a pressure detection unit according to an embodiment of the present application.

[0027] Reference signs: 1, phase advancer body; 11, thyristor; 12, heat sink; 2, pressure detection unit; 3, control module; 31, information receiving submodule; 32, information processing submodule; 33, information utilization submodule; 4, small-sized automatic control system; 41, IO module; 42, CPU module; 5, engineer station. DETAILED DESCRIPTION

[0028] The following will be described in detail with reference to the accompanying drawings. Figures 1-2 The present application will be further described in detail.

[0029] An embodiment of the present application discloses a phase advancer with thyristor 11 pressure detection. Referring to Figure 1 and Figure 2, including the phase advancer body 1, a plurality of groups of thyristors 11 and radiating fins 12 are arranged in the phase advancer body 1, the number of the thyristors 11 and the radiating fins 12 in the phase advancer body 1 of different types is different based on the model of the phase advancer body 1.

[0030] With reference to Figure 1 and Figure 2 , the pressure detection module is a pressure sensor gasket in the embodiment, which is arranged at the contact position between the cathode of the thyristor 11 and the radiating fin 12, so as to detect the pressure between the two in real time.

[0031] With reference to Figure 1 and Figure 2 , the phase advancer body 1 is further connected with the control module 3, each pressure detection module is in communication connection with the control module 3, the control module 3 comprises a signal receiving sub-module, a signal processing sub-module and a signal utilization sub-module, the control module 3 can be selected as a slag powder mill main system PLC or a single machine phase advancer system PLC in the embodiment, so as to realize the accurate processing of the signals detected by the pressure detection module.

[0032] With reference to Figure 1 and Figure 2 , the phase advancer body 1 is further connected with the small automatic control system 4, the pressure detection module and the control module 3 are in communication connection with the small automatic control system 4, and the control module 3 is used for receiving, processing and utilizing the signals between the small automatic control system 4 and the pressure detection module.

[0033] With reference to Figure 1 and Figure 2 , the small automatic control system 4 is in communication connection with the engineer station 5, and the small automatic control system 4 comprises an IO module 41 and a CPU module 42, the signals collected by the pressure detection module are connected to the IO module 41, and the analog signals are transmitted to the touch screen of the smart device carried by the engineer or the engineer station 5 through the processing of the control module 3 and the CPU module 42, so as to further save the time of the operator for obtaining the working state of the thyristor 11 and the phase advancer, and improve the maintenance efficiency.

[0034] The implementation principle of the phase advancer with thyristor pressure detection embodiment of the application is that the pressure detection unit 2 can detect the pressure between the thyristor 11 and the heat sink 12 in real time, so that signal feedback can be obtained in time when the thyristor 11 is partially discharged and broken down, and then the maintenance of the operator is facilitated, so as to ensure that the phase advancer can normally work; the application can monitor the running condition of the thyristor 11 in the phase advancer body 1 through the processes such as signal collection, processing and output, and can feed back the pressure condition in the equipment in real time, so as to avoid the situation that the thyristor 11 is partially discharged and broken down due to the gap caused by too small pressure, facilitate maintenance and operator monitoring, and reduce the labor cost in the checking and maintenance and production operation process.

[0035] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A phase advancer with thyristor pressure detection, characterized in that: The device includes a phase advancer body. Inside the phase advancer body, a pressure detection unit is provided between the thyristor and the heat sink. The pressure detection unit is communicatively connected to a control module. Outside the phase advancer, a small automated control system is also provided. Both the pressure detection unit and the control module are communicatively connected to the small automated control system.

2. The phase advancer with thyristor pressure detection according to claim 1, characterized in that: The pressure detection unit uses a pressure sensor pad and is located at the contact point between the thyristor cathode and the heat sink.

3. The phase advancer with thyristor pressure detection according to claim 1, characterized in that: The phase advancer body is provided with several sets of thyristors and heat sinks. Each set of thyristors and heat sinks is provided with a pressure detection unit. Each pressure detection unit is communicatively connected to a small automated control system.

4. The phase advancer with thyristor pressure detection according to claim 1, characterized in that: The small automated control system is communicatively connected to the engineering station, and provides real-time feedback on the phase advancer's working status to the engineering station based on the detection results of the pressure detection unit.

5. A phase advancer with thyristor pressure detection according to claim 4, characterized in that: The small-scale automated control system includes an I / O module and a CPU module. The I / O module is used to receive the detection results from the pressure detection unit and generate an analog signal. The CPU module is used to feed the analog signal back to the engineering workstation.

6. A phase advancer with thyristor pressure detection according to claim 1, characterized in that: The control module uses a PLC for the main system of the slag micro-powder mill.

7. A phase advancer with thyristor pressure detection according to claim 1, characterized in that: The control module uses a stand-alone phase advancer system PLC.

8. A phase advancer with thyristor pressure detection according to claim 1, characterized in that: The control module includes a signal receiving submodule, a signal processing submodule, and a signal utilization submodule. The control module is used to receive, process, and utilize the signals between the pressure detection unit and the small automated control system.

Images