CN210375471U - Constant temperature adjusting mechanism for portable main transformer thermometer calibrator - Google Patents
Constant temperature adjusting mechanism for portable main transformer thermometer calibrator Download PDFInfo
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- CN210375471U CN210375471U CN201921512007.6U CN201921512007U CN210375471U CN 210375471 U CN210375471 U CN 210375471U CN 201921512007 U CN201921512007 U CN 201921512007U CN 210375471 U CN210375471 U CN 210375471U
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- oil pocket
- oil
- portable main
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- 230000007246 mechanism Effects 0.000 title claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 238000000151 deposition Methods 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 6
- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003305 oil spill Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model discloses a constant temperature adjustment mechanism for portable main thermometer check gauge that becomes, main thermometer check gauge are equipped with the shell, the shell internal fixation has the oil pocket that is used for depositing transformer oil, be equipped with the heater in the oil pocket, the test socket has been seted up to the top same position of oil pocket and shell, the top of shell is fixed with the motor, the top of shell and oil pocket is fixed with the bearing, the output shaft of motor is fixed down on the bearing and is extended to the oil pocket in, the end fixing of output shaft has stirring vane. The utility model discloses a to the current improvement that is used for portable main thermometer check gauge that becomes, it is convenient to improve, uses more accurate reliable, and assurance main thermometer check gauge that can be quick is interior oil temperature stable, invariable.
Description
Technical Field
The utility model relates to an electric power field especially relates to transformer detecting instrument.
Background
The power transformer is one of important electrical devices in the power system, and the operation condition of the power transformer has a great relationship with the safe and reliable operation of the power system. According to statistics of relevant data, the average fault rate of the transformer with the voltage of 110kV and above is about 0.69%, wherein insulation aging is caused due to over-temperature operation of the winding, and breakdown and burning accidents of the transformer winding occupy a large proportion. The main protection heavy gas protection of the non-electric quantity protection of the transformer actually reflects the abnormal condition of the temperature of the transformer indirectly. Therefore, the measurement of the transformer oil temperature is of great significance to early warning and timely action of the transformer.
In recent years, the construction of a power grid is rapidly developed, and the number of newly built, expanded and transformed transformer substations with the voltage class of 110kV or more is large, so that the installation and acceptance work of a large number of transformers is involved. At present, many large and ultra-large power transformers of the power system in China are used for pressure thermometers for monitoring oil temperature and winding temperature, and because the temperature sensing element is connected with the display meter through a capillary tube, field assembly and disassembly for annual inspection and verification are very difficult. How to actually simulate a temperature rise signal and a temperature rise alarm and trip signal of a transformer and ensure that potential safety hazards do not exist in the temperature instrument equipment attached to the transformer is a difficult problem in the acceptance work site.
The patent application with the publication number of CN205540342U is a portable main transformer thermometer calibrator, which can acquire temperature signals in real time, efficiently and accurately calibrate a transformer thermometer and realize development of standardized operation of the transformer thermometer. The problem of operation potential safety hazard is properly solved when improving by a wide margin. The liquid that the instrument inside was filled is transformer oil, in the use, needs utilize heating equipment to heat up inside transformer oil, and thermostatic control's sensor can only gather the oil temperature of a certain point, and the region of heating is also local, through the heat exchange of fluid oneself for the oil temperature of whole inner chamber is unified, but the condition that the local difference in temperature can appear in the heating part, can cause the influence to the detection.
Disclosure of Invention
The utility model aims to solve the technical problem that realize one kind and ensure oily temperature rapid stabilization, homothermal mechanism in the main thermometer check gauge that becomes.
In order to realize the purpose, the utility model discloses a technical scheme be: the utility model provides a constant temperature adjustment mechanism for portable main thermometer check gauge that becomes, main thermometer check gauge is equipped with the shell, the shell internal fixation has the oil pocket that is used for depositing transformer oil, be equipped with the heater in the oil pocket, the test socket has been seted up to the top same position of oil pocket and shell, the top of shell is fixed with the motor, the top of shell and oil pocket is fixed with the bearing, the output shaft of motor is fixed down on the bearing and is extended to the oil pocket in, the end fixing of output shaft has stirring vane.
The heater includes fixed block, extension rod and heating rod, the fixed block is fixed in the shell top, the extension rod passes shell and oil pocket one end rigid coupling on the fixed block, the other end at the extension rod is fixed to the heating rod and the suspension is in the oil pocket.
The extension rod is a hollow tube, a power line of the heating rod is connected with the heating rod through the hollow part of the extension rod and the fixing block, and the fixing block is a wire holder and is provided with an interface connected with a power supply.
The testing port is provided with a testing cylinder vertically extending into the oil cavity, the testing cylinder comprises a lower bottom and a cylinder wall, one end of the cylinder wall is fixedly connected to the testing port, the lower bottom is fixed to the other end of the cylinder wall, and the lower bottom and the cylinder wall are of hollow structures.
The test port is provided with internal threads and is provided with a sealing cover matched with the internal threads.
The utility model discloses a to the current improvement that is used for portable main thermometer check gauge that becomes, it is convenient to improve, uses more accurate reliable, and assurance main thermometer check gauge that can be quick is interior oil temperature stable, invariable.
Drawings
The following brief descriptions of the contents expressed by each figure and the marks in the figures in the specification of the present invention are as follows:
FIG. 1 is a schematic structural diagram of a constant temperature adjusting mechanism for a portable main transformer thermometer calibrator;
the labels in the above figures are: 1. a housing; 2. an oil chamber; 3. a test cartridge; 4. a sealing cover; 5. a heating rod; 6. a stirring blade.
Detailed Description
The following description of the embodiments with reference to the drawings is intended to illustrate the present invention in further detail, such as the shapes and structures of the components, the mutual positions and connections between the components, the functions and working principles of the components, the manufacturing process, and the operation and use methods, etc., so as to help those skilled in the art understand the present invention more completely, accurately and deeply.
As shown in fig. 1, the utility model discloses improve to current main thermometer check gauge that becomes, make local heating can transmit heat fast through addding rabbling mechanism, guarantee that the oil temperature in the oil pocket 2 is unified, the top of shell 1 is fixed with the motor promptly, the top of shell 1 and oil pocket 2 is fixed with the bearing, the output shaft of motor is fixed in the bearing, the output shaft downwardly extending of motor extends to in the oil pocket 2, the end fixing of output shaft has stirring vane 6, realizes the stirring effect.
Because the stirring in-process, oil can disturb in oil pocket 2, especially when the oil temperature is high, the possibility of oil spill can appear, consequently be equipped with the vertical test section of thick bamboo 3 that extends to the oil pocket 2 in the test port, test section of thick bamboo 3 is including going to the bottom and section of thick bamboo wall, section of thick bamboo wall one end rigid coupling is in test port department, goes to the bottom and fixes at the section of thick bamboo wall other end, goes to the bottom and section of thick bamboo wall be hollow out construction to can avoid oil from detecting the spill, also can protect stirring vane 6 simultaneously, avoid detecting the part contact stirring vane 6. The electrical power for the motor may be provided by an existing power source.
The testing cylinder 3 is generally made of metal, and if the heater is in contact with the oil cavity 2, the temperature of the testing cylinder 3 may be higher than the oil temperature by means of metal heat conduction, and the testing result may be affected. So need improve the structure of heater once more, the heater includes the fixed block, extension rod and heating rod 5, the fixed block is fixed in shell 1 top, the extension rod passes shell 1 and 2 one end rigid couplings of oil pocket on the fixed block, heating rod 5 is fixed at the other end of extension rod and the suspension is in oil pocket 2, heating rod 5 is unsettled and is heated in oil, the extension rod is the hollow tube, heating rod 5's power cord is connected with heating rod 5 electricity and fixed block through the hollow portion in the extension rod, the fixed block is the connection terminal and has the interface of connecting power.
The present invention has been described above with reference to the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments described above, and that the invention is not limited to the specific embodiments described above, but rather is intended to cover various insubstantial modifications of the inventive method and solution, or its application to other applications without modification.
Claims (5)
1. The utility model provides a constant temperature adjustment mechanism for portable main thermometer check gauge that becomes, main thermometer check gauge are equipped with the shell, the shell internal fixation has the oil pocket that is used for depositing transformer oil, be equipped with the heater in the oil pocket, the test port, its characterized in that have been seted up to the top same position of oil pocket and shell: the top of the shell is fixed with a motor, the tops of the shell and the oil cavity are fixed with bearings, an output shaft of the motor is downwards fixed on the bearings and extends into the oil cavity, and the end part of the output shaft is fixed with a stirring blade.
2. The thermostatic regulating mechanism for a portable main transformer thermometer calibrator of claim 1 wherein: the heater includes fixed block, extension rod and heating rod, the fixed block is fixed in the shell top, the extension rod passes shell and oil pocket one end rigid coupling on the fixed block, the other end at the extension rod is fixed to the heating rod and the suspension is in the oil pocket.
3. The thermostatic regulating mechanism for a portable main transformer thermometer calibrator of claim 2 wherein: the extension rod is a hollow tube, a power line of the heating rod is connected with the heating rod through the hollow part of the extension rod and the fixing block, and the fixing block is a wire holder and is provided with an interface connected with a power supply.
4. The thermostat adjustment mechanism for a portable main transformer thermometer calibrator according to claim 1, 2 or 3, wherein: the testing port is provided with a testing cylinder vertically extending into the oil cavity, the testing cylinder comprises a lower bottom and a cylinder wall, one end of the cylinder wall is fixedly connected to the testing port, the lower bottom is fixed to the other end of the cylinder wall, and the lower bottom and the cylinder wall are of hollow structures.
5. The thermostatic regulating mechanism for a portable main transformer thermometer calibrator of claim 4, wherein: the test port is provided with internal threads and is provided with a sealing cover matched with the internal threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921512007.6U CN210375471U (en) | 2019-09-11 | 2019-09-11 | Constant temperature adjusting mechanism for portable main transformer thermometer calibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921512007.6U CN210375471U (en) | 2019-09-11 | 2019-09-11 | Constant temperature adjusting mechanism for portable main transformer thermometer calibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210375471U true CN210375471U (en) | 2020-04-21 |
Family
ID=70254723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921512007.6U Active CN210375471U (en) | 2019-09-11 | 2019-09-11 | Constant temperature adjusting mechanism for portable main transformer thermometer calibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210375471U (en) |
-
2019
- 2019-09-11 CN CN201921512007.6U patent/CN210375471U/en active Active
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