CN215566536U - Main transformer oil pump comprehensive performance test bench - Google Patents
Main transformer oil pump comprehensive performance test bench Download PDFInfo
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- CN215566536U CN215566536U CN202121024786.2U CN202121024786U CN215566536U CN 215566536 U CN215566536 U CN 215566536U CN 202121024786 U CN202121024786 U CN 202121024786U CN 215566536 U CN215566536 U CN 215566536U
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- main transformer
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Abstract
The utility model discloses a comprehensive performance test bed for a main transformer oil pump, which comprises: an oil passage unit; the oil circuit unit comprises an oil tank, a first pressure measuring pipe, a second pressure measuring pipe, an oil inlet pipe, an oil outlet pipe, a corrugated pipe, a turbine flowmeter and an oil return pipe; the first pressure measuring pipe and the second pressure measuring pipe are respectively connected with an input port and an output port of an oil pump to be detected, two ends of the oil inlet pipe are respectively communicated with the oil tank and the first pressure measuring pipe, one end of the oil outlet pipe is communicated with the second pressure measuring pipe, the corrugated pipe is communicated with the other end of the oil outlet pipe, the corrugated pipe is communicated with one end of the oil return pipe through the turbine flowmeter, and the other end of the oil return pipe is communicated with the oil tank; the comprehensive performance test bed of the utility model realizes intelligent detection and calculation of the comprehensive performance of the oil pump to be detected by intelligently monitoring the voltage, the current, the oil pressure, the oil temperature of the oil circuit unit and the flow rate of the transformer oil through the PLC.
Description
Technical Field
The utility model relates to the technical field of oil pump test equipment, in particular to a comprehensive performance test bed for a main transformer oil pump.
Background
The main transformer is a main step-down transformer mainly used for power transmission and transformation in a unit or a transformer substation, and is also a core part of the transformer substation. The transformer is a core device of the traction power supply system of the electric locomotive and is also a key device for ensuring the safe and stable operation of the traction power supply system. In the existing main transformer, the oil-immersed transformer uses transformer oil as an insulating and cooling medium, and the transformer oil pump is one of the important components of the oil-immersed transformer. The transformer oil pump adopts a full-sealing structure, is a fluid machine special for conveying insulating oil medium of a transformer, and plays a very important role in insulation, isolation protection and heat dissipation of the interior of a main transformer. In the production process of the oil-immersed transformer, the detection of the performances of the main transformer oil pump such as tightness, total power, lift and the like is very important.
The performance detection of the main transformer oil pump by production personnel is mainly carried out through a special oil pump test bed. However, the existing oil pump test bed mostly adopts manual operation, the lift and the total efficiency are calculated manually, the accuracy of the oil pump examination items is not high, and the effect is not good.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide a main transformer oil pump comprehensive performance test bench aiming at the technical problems of manual operation and manual calculation adopted by the main transformer oil pump test bench.
A main transformer oil pump comprehensive performance test bed comprises an oil circuit unit; the oil circuit unit comprises an installation base, an oil tank, a first pressure measuring pipe, a second pressure measuring pipe, an oil inlet pipe, an oil outlet pipe, a corrugated pipe, a turbine flowmeter and an oil return pipe.
The oil tank sets up in the installation base, and first pressure-measuring pipe sets up in the input port of waiting to detect the oil pump, and the second pressure-measuring pipe sets up in the delivery outlet of waiting to detect the oil pump, advances the one end and the oil tank intercommunication of oil pipe, and the other end of oil pipe is advanced in first pressure-measuring pipe intercommunication, goes out the one end and the second pressure-measuring pipe intercommunication of oil pipe, and the other end that the bellows intercommunication goes out oil pipe, bellows and turbine flowmeter intercommunication, turbine flowmeter intercommunication return oil pipe's one end, return oil pipe's the other end and oil tank intercommunication.
In one embodiment, the oil tank is provided with a heater and a temperature sensor.
In one embodiment, a manual cut-off valve and a manual butterfly valve are arranged at the joint of the oil tank and the oil outlet pipe.
In one embodiment, the first pressure measuring pipe and the second pressure measuring pipe are respectively provided with a pressure gauge.
In one embodiment, the oil circuit unit further includes a first connection pipe and a second connection pipe.
In one embodiment, the bellows includes a first bellows and a second bellows, the first bellows is communicated with the oil outlet pipe, the second bellows is communicated with the turbine flowmeter, and the first bellows is communicated with the second bellows through a first connecting pipe.
In one embodiment, the turbine flowmeter is communicated with the oil return pipe through a second connecting pipe.
In one embodiment, an electric butterfly valve is arranged at the joint of the turbine flowmeter and the second connecting pipe.
In one embodiment, the above-mentioned main transformer oil pump comprehensive performance test bench further includes an electrical screen cabinet and a PLC controller, and the electrical screen cabinet is electrically connected to the oil pump to be detected, the electric butterfly valve, the pressure gauge, the heater and the turbine flowmeter.
In one embodiment, the PLC controller is electrically connected to the electrical cabinet.
According to the test bed for the comprehensive performance of the main transformer oil pump, the voltage, the current, the temperature and the flow of the oil circuit unit are intelligently monitored and controlled through the PLC and the electric screen cabinet, and the PLC controls the voltage, the current, the temperature and the flow of the oil pump to be detected, the electric butterfly valve, the pressure gauge, the heater and the turbine flowmeter to control the test bed for the comprehensive performance of the main transformer oil pump to simulate various different power supply conditions and use working conditions so as to test the comprehensive performance of the oil pump to be detected. The PLC controls the heater and the temperature sensor to monitor and control the temperature of the transformer oil in the oil tank; after a tester opens the manual cut-off valve and the manual butterfly valve, the PLC control unit controls to start the oil pump to be tested to extract the transformer oil in the oil tank, the transformer oil sequentially flows through the first pressure measuring pipe, the second pressure measuring pipe, the first corrugated pipe, the second corrugated pipe and the turbine flowmeter, and finally returns to the oil tank through the oil return pipe for recycling; the first pressure measuring pipe measures the pressure value of the input port of the oil pump to be detected, the second pressure measuring pipe measures the pressure value of the output port of the oil pump to be detected, the corrugated pipe measures the pressure value of fluid in an oil way, and the turbine flowmeter measures the flow value of transformer oil, so that full-automatic detection of the oil pump to be detected is realized; in addition, the PLC of the utility model collects the voltage, current, oil temperature, flow and oil pressure information of the oil circuit unit and transmits the parameter information to the industrial computer; the industrial computer calculates the power, the lift, the rotating speed and the overall efficiency of the oil pump to be detected, original detection information and calculation result information are stored and fed back, and testers evaluate the performance of the oil pump to be detected according to the detection result, so that the comprehensive performance test bed disclosed by the utility model can realize automatic monitoring and intelligent calculation, effectively reduce manual operation and manual calculation, and improve the accuracy of the comprehensive performance test bed in detecting the main transformer oil pump and the automation degree of detection.
Drawings
FIG. 1 is a schematic structural diagram of a main transformer oil pump comprehensive performance test bed in one embodiment.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Referring to fig. 1, the present invention discloses a test bed for the comprehensive performance of a main transformer oil pump, which includes an oil circuit unit; the oil circuit unit comprises a mounting base 101, an oil tank 102, an oil pump 103 to be detected, an oil inlet pipe 104, a pressure measuring pipe 105, an oil outlet pipe 106, a corrugated pipe 107, a turbine flowmeter 108, an oil return pipe 109, a first connecting pipe 1101 and a second connecting pipe 1102. The pressure measuring pipe 105 comprises a first pressure measuring pipe 1051 and a second pressure measuring pipe 1052, and the first pressure measuring pipe 1051 and the second pressure measuring pipe 1052 are respectively provided with a pressure gauge; the bellows 107 includes a first bellows 1071 and a second bellows 1072. The oil tank 102 and the oil pump 103 to be detected are arranged on the mounting base 101, the first pressure measuring tube 1051 and the second pressure measuring tube 1052 are respectively communicated with an input port and an output port of the oil pump 103 to be detected, a pressure gauge of the first pressure measuring tube 1051 monitors the pressure of the input port end of the oil pump 103 to be detected, and a pressure gauge of the second pressure measuring tube 1052 detects the pressure of the output port end of the oil pump 103 to be detected; the two ends of the oil inlet pipe 104 are respectively communicated with the oil tank 102 and the first pressure measuring pipe 1051, one end of the oil outlet pipe 106 is communicated with the second pressure measuring pipe 1052, the first corrugated pipe 1071 is communicated with the other end of the oil outlet pipe 106, the other end of the first corrugated pipe 1071 is communicated with the second corrugated pipe 1072 through the first connecting pipe 1101, the other end of the second corrugated pipe 1072 is communicated through the turbine flowmeter 108, the first corrugated pipe 1071 and the second corrugated pipe 1072 detect the oil pressure of the transformer oil in the oil path, and the turbine flowmeter 108 detects the flow of the transformer oil in the oil path; the turbine flowmeter 108 communicates with one end of the oil return pipe 109 via a second connection pipe 1102, and the other end of the oil return pipe 109 communicates with the oil tank 106. In this embodiment, the oil tank 102 of the present invention is provided with a heater 1021 and a temperature sensor 1022, a tester controls the temperature of the oil by controlling the heater 1021, and the temperature sensor 1022 collects the temperature of the transformer oil and feeds back temperature information to the tester; a manual cut-off valve 111 and a manual butterfly valve 112 are arranged at the joint of the oil tank 102 and the oil inlet pipe 104, and the manual cut-off valve 111 and the manual butterfly valve 112 can ensure that the oil circuit unit can be cut off emergently when the comprehensive performance test bed of the utility model breaks down; an electric butterfly valve 113 capable of controlling the flow rate of the transformer oil in the oil passage unit is provided at a connection point of the turbine flowmeter 108 and the second connection pipe 1102.
In this embodiment, the comprehensive performance test bed further includes an electrical screen cabinet and a PLC controller, the electrical screen cabinet is electrically connected to the oil pump 103 to be detected, the electric butterfly valve 113, the pressure gauge, the heater 1021 and the turbine flowmeter 108, and the PLC controller is electrically connected to the electrical screen cabinet. When the comprehensive performance test bed starts to detect the oil pump 103 to be detected, a tester opens the manual on-off valve 111 and the manual butterfly valve 112; the PLC control unit controls to start the oil pump to be detected to pump transformer oil in the oil tank, controls the heater 1021 and the electric butterfly valve 113, and further controls the oil temperature and the flow rate of the transformer oil in the oil circuit unit; so that the transformer oil flows through the first pressure measuring pipe 1051, the second pressure measuring pipe 1052, the first bellows 1071, the second bellows 1072, the turbine flowmeter 108, and the electric butterfly valve 113 in order at a certain flow rate. In this embodiment, the pressure gauge of the first pressure measuring tube 1051 monitors the input port pressure of the oil pump 103 to be detected, and the pressure gauge of the second pressure measuring tube 1052 monitors the output port pressure of the oil pump 103 to be detected; the first bellows 1071 and the second bellows 1072 monitor oil pressure in the lines, respectively; turbine flow meter 108 monitors the flow of transformer oil in the pipeline; finally, the transformer oil is fed back to the oil tank 102 through the oil return pipe 109 to complete an oil circuit cycle. In this embodiment, the PLC controller collects temperature information, flow information, and pressure information of the oil line unit, and simultaneously collects voltage, current voltage, and current information of the oil pump to be detected, the electric butterfly valve, the pressure gauge, the heater, and the turbine flowmeter, and transmits the parameter information to the industrial computer; the industrial computer calculates the power, the lift, the rotating speed and the overall efficiency of the oil pump to be detected, stores and feeds back original detection information and calculation result information, and testers evaluate the performance of the oil pump to be detected according to the detection result.
In summary, in the above embodiments, the test bed for comprehensive performance of the main transformer oil pump according to the present invention intelligently monitors and controls the voltage and the current of the oil pump to be detected, and the oil pressure, the oil temperature, and the flow rate of the transformer oil in the oil path unit through the PLC controller and the electrical panel cabinet, and further controls the test bed for comprehensive performance of the oil pump to be detected to simulate various different power supply conditions and use conditions by controlling the voltage, the current, the temperature, and the flow rate of the oil pump to be detected, the electric butterfly valve, the pressure gauge, the heater, and the turbine flow meter through the PLC controller. The PLC acquires the voltage, current, oil temperature, flow and oil pressure information of the oil circuit unit, and transmits the parameter information to the industrial computer, the industrial computer calculates the power, lift, rotating speed and overall efficiency of the oil pump to be detected, and stores and feeds back the original detection information and calculation result information to a tester, and the tester evaluates the performance of the oil pump to be detected according to the detection result. The comprehensive performance test bed for the main transformer oil pump effectively avoids manual operation and manual calculation, and improves the accuracy and the automation degree of detection of the main transformer oil pump.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a main transformer oil pump comprehensive properties test bench which characterized in that includes: an oil passage unit; the oil circuit unit comprises an installation base, an oil tank, a first pressure measuring pipe, a second pressure measuring pipe, an oil inlet pipe, an oil outlet pipe, a corrugated pipe, a turbine flowmeter and an oil return pipe;
the oil tank set up in the installation base, first pressure-measuring pipe and second pressure-measuring pipe are connected respectively and are waited the input port and the delivery outlet of detecting the oil pump, the both ends that advance oil pipe communicate respectively oil tank and first pressure-measuring pipe, the one end intercommunication of going out oil pipe the second pressure-measuring pipe, the bellows intercommunication the other end of going out oil pipe, the bellows passes through turbine flowmeter intercommunication the one end of returning oil pipe, the other end that returns oil pipe with the oil tank intercommunication.
2. The main transformer oil pump combination property test bench of claim 1, wherein a heater and a temperature sensor are arranged in the oil tank.
3. The main transformer oil pump comprehensive performance test bench of claim 2, wherein a manual cut-off valve and a manual butterfly valve are arranged at the connection of the oil tank and the oil outlet pipe.
4. The main transformer oil pump comprehensive performance test bed of claim 3, wherein the first pressure measuring pipe and the second pressure measuring pipe are respectively provided with a pressure gauge.
5. The main transformer oil pump comprehensive performance test bench of claim 4, wherein said oil circuit unit further comprises a first connection pipe and a second connection pipe.
6. The main transformer oil pump integrity test rig of claim 5, wherein said bellows includes a first bellows and a second bellows, said first bellows being in communication with said oil outlet pipe, said second bellows being in communication with said turbine flow meter, said first bellows being in communication with said second bellows through said first connecting tube.
7. The main transformer oil pump comprehensive performance test bench of claim 6, wherein said turbine flowmeter is communicated with said oil return pipe through said second connecting pipe.
8. The main transformer oil pump comprehensive performance test bench of claim 7, wherein an electric butterfly valve is arranged at the joint of the turbine flowmeter and the second connecting pipe.
9. The main transformer oil pump comprehensive performance test bed of claim 8, further comprising an electrical screen cabinet, wherein the electrical screen cabinet is electrically connected with the oil pump to be tested, the electric butterfly valve, the pressure gauge, the heater and the turbine flowmeter.
10. The main transformer oil pump combination property test stand of claim 9, further comprising a PLC controller, wherein the PLC controller is electrically connected to the electrical cubicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121024786.2U CN215566536U (en) | 2021-05-13 | 2021-05-13 | Main transformer oil pump comprehensive performance test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121024786.2U CN215566536U (en) | 2021-05-13 | 2021-05-13 | Main transformer oil pump comprehensive performance test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215566536U true CN215566536U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121024786.2U Active CN215566536U (en) | 2021-05-13 | 2021-05-13 | Main transformer oil pump comprehensive performance test bench |
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| Country | Link |
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| CN (1) | CN215566536U (en) |
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2021
- 2021-05-13 CN CN202121024786.2U patent/CN215566536U/en active Active
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