CN213148448U - Portable automatic oil taking device - Google Patents
Portable automatic oil taking device Download PDFInfo
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- CN213148448U CN213148448U CN202022012944.4U CN202022012944U CN213148448U CN 213148448 U CN213148448 U CN 213148448U CN 202022012944 U CN202022012944 U CN 202022012944U CN 213148448 U CN213148448 U CN 213148448U
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Abstract
The utility model relates to a portable automatic oil device of getting, main device is installed at quick-witted incasement, be equipped with switch on the machine case, the lithium cell provides the power for the device that needs the electricity through switch, the controller links to each other with the mainboard, controller control electric syringe and solenoid valve respectively, be equipped with on the machine case and get the hydraulic fluid port, non return port and oil recovery mouth, sealing joint with get the sealed linking to each other of hydraulic fluid port, electric syringe's induction port passes through the pipeline and links to each other with the three-way valve, two other valve ports of three-way valve link to each other with two one-way valves, one-way valve with get the hydraulic fluid port and link to each other, another valve port of solenoid valve links to each other with the oil recovery mouth through another three-way valve, another valve port of solenoid valve links to each other with the non. The utility model has the advantages of being simple in structure and convenient in operation, can get oil automatically, the oil appearance of getting is sealed with the external world and is kept apart, and is small portable moreover.
Description
Technical Field
The utility model relates to a portable automatic oil extraction device.
Background
The transformer plays an important role in converting, concentrating and distributing voltage and current in a power system, is important equipment of a transformer substation, is easy to cause large-area power failure once an accident occurs, influences normal life and production of people, and sometimes can also endanger personal safety and cause life and property loss. The transformer oil is insulating oil filled in the transformer to play roles in insulation, cooling and arc extinction, and plays an important role in maintaining normal use of the transformer. The content of water, gas, impurity and oil body granularity in the transformer oil have important influence to the transformer performance, need periodic sampling test, because the transformer sets up in remote place more, need carry the longer distance after the sample just can detect. According to the regulations of the national power industry standard, the whole process of taking the oil sample from the transformer must be carried out in a fully sealed state, and the oil sample cannot contact with air. The existing sampling equipment is large in size, heavy, complex in structure and inconvenient to operate; the portable oil taking device with small volume is similar to a suction tube, and the transformer oil is easily contacted with air after being taken by manual operation, so that the analysis of the sample oil is not facilitated.
At present, domestic and international similar research achievements are few, wherein Wuhan university tries to construct a 500kV transformer oil automatic sampling device through a nitrogen pressure balance method, the device realizes automatic sampling, the sampling meets the requirements of national standard GB/T7579, but the nitrogen needs to be replaced, the use and maintenance are complex, the cost is high, and the device cannot be popularized and used. The Yuxi power supply office of the Yunnan power grid Limited company explores oil extraction sealing, but only proposes some improvement suggestions in the sealing aspect and verifies the oil extraction sealing by a manual oil extraction method, and cannot realize automation. The automatic oil taking device not only meets the requirements of national standard GB/T7579 on automatic drawing, but also is simple, practical and has a certain distance.
Disclosure of Invention
The utility model discloses a problem and defect that the purpose exists in order to overcome prior art provide a portable automatic oil extraction device, the utility model discloses an oil extraction device has simple structure, convenient operation, can get oil automatically, and the oil appearance of getting is kept apart with external sealing, and is small portable moreover.
The utility model adopts the technical proposal that:
the utility model provides a portable automatic oil extraction device, includes sealing joint, oil production bottle, quick-witted case, two check valves, three-way valve, electric injector, solenoid valve, check valve, controller, oil tank, lithium cell, mainboard, its characterized in that: the single-way valve, the electric injector, the electromagnetic valve, the check valve, the controller, the oil tank, the lithium battery and the mainboard are respectively arranged in the case, the case is provided with a power switch, the lithium battery provides power for the electric injector, the electromagnetic valve, the controller and the mainboard through the power switch, the controller is connected with the mainboard and respectively controls the electric injector and the electromagnetic valve, the case is provided with an oil taking port, the check port and an oil extraction port, a sealing joint is hermetically connected with the oil taking port, an air suction port of the electric injector is connected with a first three-way valve through a pipeline, the other two valve ports of the first three-way valve are respectively connected with two single-way valves, one single-way valve is connected with the oil taking port, the other single-way valve is connected with the electromagnetic valve, one valve port of the electromagnetic valve is connected with the oil tank through a second three-way, the oil extraction bottle is respectively connected with the non-return port and the oil extraction port in a sealing way.
The utility model discloses still include the liquid crystal digital display screen, the liquid crystal digital display screen is installed on quick-witted case, and the liquid crystal digital display screen links to each other with the controller, and the lithium cell provides the power for the liquid crystal digital display screen.
The sealing joint is composed of an oil taking flange, an oil taking valve, a three-way valve and an oil pipe, the oil taking valve and the oil taking flange are fixed into a whole, an oil nozzle of the oil taking valve is connected with the three-way valve, the three-way valve is connected with the oil pipe, and the other end of the oil pipe is connected with an oil taking opening of the case in a sealing mode.
The electric injector consists of a sensor, a direct current motor, an injector and a shell, wherein the sensor, the direct current motor and the injector are respectively arranged on the shell, the direct current motor controls the telescopic rod of the injector to stretch, the sensor feeds back the position information of the telescopic rod in real time, and the oil quantity information is obtained through conversion of the position information and the sectional area of the injector.
The electromagnetic valve is a miniature low-power direct-acting two-position two-way electromagnetic valve.
The case on be equipped with the interface that charges, the interface that charges links to each other with the lithium cell, charges for the lithium cell.
The utility model discloses a get oily device has simple structure, convenient operation, can get oil automatically, and the oil appearance of getting is sealed with the external world and is kept apart, and is small in addition in carrying.
Drawings
Fig. 1 is the schematic diagram of the external oil-taking pipeline of the present invention.
Fig. 2 is a front schematic view of the present invention.
Fig. 3 is a schematic back view of the present invention.
Fig. 4 is a schematic diagram of the internal structure of the present invention.
Fig. 5 is a schematic structural view of the power injector of the present invention.
In the figure: 1-oil taking valve, 2-oil taking flange, 3-three-way valve, 4-oil pipe, 5-oil taking port, 6-charging port, 7-power switch, 8-liquid crystal digital display screen, 9-oil taking port, 10-oil taking bottle, 11-non-return port, 12-one-way valve, 13-electric injector, 13.1-injector, 13.2-sensor, 13.3-direct current motor, 13.4-shell, 14-electromagnetic valve, 15-non-return valve, 16-controller, 17-oil tank, 18-lithium battery, 19-mainboard and 20-case.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
as shown in fig. 1, fig. 2, fig. 3, and fig. 4, the utility model discloses a portable automatic oil extraction device, including sealing joint, liquid crystal digital display screen, oil production bottle 10, machine case 20, two one-way valves 12, three-way valve 3, electric injector 13, solenoid valve 14, check valve 15, controller 16, oil tank 17, lithium cell 18, mainboard 19, its characterized in that: the one-way valve 12, the electric injector 13, the electromagnetic valve 14, the check valve 15, the controller 16, the oil tank 17, the lithium battery 18 and the main board 19 are respectively arranged in a case 20, the liquid crystal digital display screen 8 is arranged on the case 20, and the liquid crystal digital display screen 8 is connected with the controller 16; a charging interface 6 and a power switch 7 are arranged on the case 20, and the charging interface 6 is connected with the lithium battery 18 to charge the lithium battery 18; the lithium battery 18 provides power for the liquid crystal digital display 8, the electric injector 13, the electromagnetic valve 14, the controller 16 and the mainboard 19 through the power switch 7, the controller 16 is connected with the mainboard 19, the controller 16 respectively controls the electric injector 13 and the electromagnetic valve 14, the case 20 is provided with an oil taking port 5, a check port 11 and an oil extraction port 9, the sealing joint is hermetically connected with the oil taking port 5, the air suction port of the electric injector 13 is connected with the first three-way valve 3 through a pipeline, the other two valve ports of the first three-way valve 3 are respectively connected with two one-way valves 12, one of the one-way valves 12 is connected with the oil taking port 5, the other one of the one-way valves 12 is connected with the electromagnetic valve 14, one valve port of the electromagnetic valve 14 is connected with the oil tank 17 through the second three-way valve 3, the other valve port of the second three-way valve 3 is connected with, the oil extraction bottle 10 is respectively connected with the non-return port 11 and the oil extraction port 9 in a sealing way. The electromagnetic valve 14 is a miniature low-power direct-acting two-position two-way electromagnetic valve. The controller adopts ST89C51 singlechip as control core, controls the valve switch with P1 serial ports and miniwatt solid state relay mode.
As shown in fig. 1, the sealing joint is composed of an oil taking flange 2, an oil taking valve 1, a three-way valve 3 and an oil pipe 4, the oil taking valve 1 and the oil taking flange 2 are fixed into a whole, an oil nozzle of the oil taking valve 1 is connected with the three-way valve 3, the three-way valve 3 is connected with the oil pipe 4, and the other end of the oil pipe 4 is connected with an oil taking port 5 of a case 20 in a sealing manner.
As shown in fig. 5, the electric injector 13 is composed of a sensor 13.2, a dc motor 13.3, an injector 13.1 and a housing 13.4, the sensor 13.2, the dc motor 13.3 and the injector 13.1 are respectively mounted on the housing 13.4, the dc motor 13.3 controls the telescopic rod of the injector 13.1 to extend and retract, the sensor feeds back the position information of the telescopic rod in real time, and the oil amount information is obtained by converting the position information and the sectional area of the injector. When the telescopic rod is controlled by the direct current motor to move to the position p, if the internal sectional area of the injector is s, the volume of the extracted oil sample is V which is p multiplied by s. Conversely, when the oil volume of V1 is to be extracted, the position p1 that the telescopic rod of the injector moves to is V1/s, and the system can control the moving amount of the direct current motor driving the telescopic rod according to the p1 value, so as to realize quantitative oil extraction.
The utility model discloses portable automatic oil extraction device specifically moves as follows:
the method comprises the steps of firstly controlling a direct current motor to drive an injector to stretch and draw according to a sampling requirement that the controller needs 1.05V and the allowance of 5% increase of a target oil taking amount V, extracting a primary oil sample, then closing a valve of an oil taking port, switching a three-way valve connected with an oil tank to enable an oil path to be connected into the oil tank, controlling the direct current motor to drive an injector telescopic rod to compress, pushing oil in the injector into the oil tank through the oil path, filling the injector and the oil path with residual oil, and simultaneously removing air in a real system. The process is repeated twice, and the pipeline and the injector are washed according to the requirements of the national standard GB/T7579. After the washing is finished, the controller controls the direct current motor to drive the injector to stretch and draw according to the required target oil taking amount V, an oil sample is extracted, then the valve of the oil taking port is closed, the three-way valve connected with the oil tank is switched to enable the oil path to be connected into the oil taking bottle, the direct current motor is controlled to drive the injector to stretch and compress, and the oil in the injector is pushed into the oil taking bottle through the oil path to realize sampling. And finally, manually cutting a three-way valve on the external pipeline to be communicated with air, sucking the oil sample and the air participating in the external pipeline by the controller according to the sampling requirement of 1.05V, switching the three-way valve connected with the oil tank to enable an oil path to be connected into the oil tank, controlling a direct-current motor to drive an injector telescopic rod to compress, pushing residual oil in the injector and residual oil in the internal pipeline into the oil tank by using the air, and finishing sampling.
Claims (6)
1. The utility model provides a portable automatic oil extraction device, includes sealing joint, oil production bottle, quick-witted case, two check valves, three-way valve, electric injector, solenoid valve, check valve, controller, oil tank, lithium cell, mainboard, its characterized in that: the single-way valve, the electric injector, the electromagnetic valve, the check valve, the controller, the oil tank, the lithium battery and the mainboard are respectively arranged in the case, the case is provided with a power switch, the lithium battery provides power for the electric injector, the electromagnetic valve, the controller and the mainboard through the power switch, the controller is connected with the mainboard and respectively controls the electric injector and the electromagnetic valve, the case is provided with an oil taking port, the check port and an oil extraction port, a sealing joint is hermetically connected with the oil taking port, an air suction port of the electric injector is connected with a first three-way valve through a pipeline, the other two valve ports of the first three-way valve are respectively connected with two single-way valves, one single-way valve is connected with the oil taking port, the other single-way valve is connected with the electromagnetic valve, one valve port of the electromagnetic valve is connected with the oil tank through a second three-way, the oil extraction bottle is respectively connected with the non-return port and the oil extraction port in a sealing way.
2. The portable automatic oil fetching device of claim 1, wherein: the liquid crystal digital display screen is installed on the case and connected with the controller, and the lithium battery provides power for the liquid crystal digital display screen.
3. The portable automatic oil fetching device according to claim 1 or 2, characterized in that: the sealing joint is composed of an oil taking flange, an oil taking valve, a three-way valve and an oil pipe, the oil taking valve and the oil taking flange are fixed into a whole, an oil nozzle of the oil taking valve is connected with the three-way valve, the three-way valve is connected with the oil pipe, and the other end of the oil pipe is connected with an oil taking opening of the case in a sealing mode.
4. The portable automatic oil fetching device according to claim 1 or 2, characterized in that: the electric injector consists of a sensor, a direct current motor, an injector and a shell, wherein the sensor, the direct current motor and the injector are respectively arranged on the shell, the direct current motor controls the telescopic rod of the injector to stretch, and the sensor adopts a photoelectric encoder.
5. The portable automatic oil fetching device according to claim 1 or 2, characterized in that: the electromagnetic valve is a miniature low-power direct-acting two-position two-way electromagnetic valve.
6. The portable automatic oil fetching device according to claim 1 or 2, characterized in that: the case on be equipped with the interface that charges, the interface that charges links to each other with the lithium cell, charges for the lithium cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022012944.4U CN213148448U (en) | 2020-09-15 | 2020-09-15 | Portable automatic oil taking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022012944.4U CN213148448U (en) | 2020-09-15 | 2020-09-15 | Portable automatic oil taking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213148448U true CN213148448U (en) | 2021-05-07 |
Family
ID=75716687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022012944.4U Active CN213148448U (en) | 2020-09-15 | 2020-09-15 | Portable automatic oil taking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213148448U (en) |
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2020
- 2020-09-15 CN CN202022012944.4U patent/CN213148448U/en active Active
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