CN214174383U - A standard oil appearance storage device for on-spot check-up - Google Patents
A standard oil appearance storage device for on-spot check-up Download PDFInfo
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- CN214174383U CN214174383U CN202022382547.6U CN202022382547U CN214174383U CN 214174383 U CN214174383 U CN 214174383U CN 202022382547 U CN202022382547 U CN 202022382547U CN 214174383 U CN214174383 U CN 214174383U
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- 230000000087 stabilizing effect Effects 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 238000005070 sampling Methods 0.000 claims abstract description 9
- 238000012795 verification Methods 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 4
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 229920006351 engineering plastic Polymers 0.000 claims description 3
- 238000012806 monitoring device Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 14
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002085 persistent effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The utility model discloses a standard oil sample storage device for on-site calibration, which comprises a box body, wherein an oil storage tank, an oil return tank and a gas component are arranged in the box body; an air bag is arranged in the oil storage tank, a cavity between the oil storage tank and the air bag is used for storing a standard oil sample, an exhaust overflow valve, a first oil inlet valve, a sampling valve and a first oil exhaust valve which are connected through oil pipes are respectively arranged at the top, the upper part, the lower part and the bottom of the oil storage tank, and the air bag is connected with a gas assembly through an air pipe; the gas component comprises a high-pressure gas steel cylinder, a pressure stabilizing valve, a gas pressure meter, a tee joint and a first exhaust valve; the first end of the tee joint is connected with the air bag through an air pipe; the second end of the tee joint is connected with a first exhaust valve through an air pipe, and the third end of the tee joint is sequentially connected with a gas pressure gauge, a pressure stabilizing valve and a high-pressure gas steel cylinder through the air pipe; the oil return tank comprises a rinsing oil return tank positioned at the upper part and a checking oil return tank positioned at the lower part; the utility model discloses can solve prior art and be difficult to maintain the stable problem of standard oil appearance.
Description
Technical Field
The utility model relates to a dissolved gas on-line monitoring technical field in the oil especially relates to a standard oil appearance storage device for on-the-spot check-up.
Background
Transformers are one of the important operating devices in power systems. The on-line monitoring device for the dissolved gas in the oil is equipment capable of effectively monitoring the running state of a transformer and early warning possible faults, and is widely applied to substations above 110 kV. Along with the increase of the operation time, the problems of equipment aging and the like of a large amount of on-line monitoring devices for gas dissolved in oil occur, so that serious problems of data accuracy, reduced repeatability and the like occur, and the occurrence frequency of the problems of false alarm, missed alarm and the like is increased. Therefore, it is necessary to check the online monitoring device for the dissolved gas in the oil in time, so as to ensure the reliability of the online monitoring device for the dissolved gas in the oil, and further ensure the safe and stable operation of the transformer.
On-site verification of the on-line monitoring device for the gas dissolved in the oil generally needs to use a standard oil sample with a certain concentration configured in a laboratory, so that on-line monitoring data and off-line data are compared, and the reliability of the on-line monitoring device is evaluated and verified. The gas dissolved in the oil is easily affected by the external pressure and temperature, so that the gas escapes and the oil sample is distorted. The existing oil storage container usually adopts normal pressure or spring type constant pressure oil storage, and is difficult to maintain the stability of a standard oil sample.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a standard oil appearance storage device for on-spot check-up to it is difficult to maintain the stable problem of standard oil appearance to solve prior art.
A standard oil sample storage device for on-site verification comprises a box body, wherein an oil storage tank, an oil return tank and a gas assembly are arranged in the box body;
an air bag is arranged in the oil storage tank, a cavity between the oil storage tank and the air bag is used for storing a standard oil sample, an exhaust overflow valve, a first oil inlet valve, a sampling valve and a first oil exhaust valve which are connected through oil pipes are respectively arranged at the top, the upper part, the lower part and the bottom of the oil storage tank, and the air bag is connected with the gas assembly through an air pipe;
the gas assembly comprises a high-pressure gas steel cylinder, a pressure stabilizing valve, a gas pressure gauge, a tee joint and a first exhaust valve; the first end of the tee joint is connected with the air bag through an air pipe; the second end of the tee joint is connected with the first exhaust valve through an air pipe; the third end of the tee joint is sequentially connected with the gas pressure gauge, the pressure stabilizing valve and the high-pressure gas steel cylinder through a gas pipe;
the oil return tank comprises a rinsing oil return tank positioned at the upper part and a checking oil return tank positioned at the lower part; the rinse oil return tank is equipped with second discharge valve, second inlet valve and second oil extraction valve from top to bottom in proper order, the check-up oil return tank is equipped with third discharge valve, third inlet valve and third oil extraction valve from top to bottom in proper order.
According to the utility model provides a standard oil appearance storage device for on-spot check-up has following beneficial effect: the standard oil appearance is stored in the cavity between oil tank and the gasbag, is difficult for receiving the influence of ambient pressure and temperature, can avoid oil appearance distortion, maintains the stability of standard oil appearance, and in addition, the device structure is simple and easy, the gas component content of preserving is stable, easy operation, portable, but the gas component content of persistent storage is stable unchangeable, can satisfy the requirement of on-the-spot check-up.
Additionally, according to the utility model provides a standard oil appearance storage device for on-spot check-up can also have following additional technical characterstic:
furthermore, the bottom of the box body is provided with a self-locking universal wheel.
Furthermore, handles are arranged on two sides of the box body.
Furthermore, a pull rod is arranged at the top of the box body.
Furthermore, the oil storage tank and the oil return tank are made of transparent and oil-resistant hard engineering plastics.
Further, the air bag is a nitrile rubber air bag.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a standard oil sample storage device for field calibration according to an embodiment of the present invention.
In the drawings, the specific names of the parts corresponding to the part marks are as follows:
1-a handle; 2-a first oil inlet valve; 3, a box body; 4-a sampling valve; 5-self-locking universal wheel; 6-exhaust relief valve; 7-an oil storage tank; 8-air bag; 9-a first drain valve; 10-a pull rod; 11-a first exhaust valve; 12-a tee joint; 13-barometer; 14-a pressure maintaining valve; 15-high pressure gas cylinder; 16-a second exhaust valve; 17-rinsing the oil return tank; 18-a second oil inlet valve; 19-a second oil drain valve; 20-a third exhaust valve; 21-a third fuel inlet valve; 22-checking the oil return tank; 23-third drain valve.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a standard oil sample storage device for on-site calibration according to an embodiment of the present invention includes a box 3, and an oil storage tank 7, an oil return tank, and a gas assembly are disposed in the box 3.
The inside gasbag 8 that is equipped with of oil storage tank 7, oil storage tank 7 with cavity between the gasbag 8 is used for storing standard oil sample, and is preferred, gasbag 8 adopts the nitrile rubber gasbag. The top, the upper part, the lower part and the bottom of the oil storage tank 7 are respectively provided with an exhaust overflow valve 6, a first oil inlet valve 2, a sampling valve 4 and a first oil outlet valve 9 which are connected through oil pipes; the air bag 8 is connected with the air assembly through an air pipe after being subjected to airtight treatment.
The gas assembly comprises a high-pressure gas steel cylinder 15, a pressure stabilizing valve 14, a gas pressure gauge 13, a tee joint 12 and a first exhaust valve 11; the first end of the tee joint 12 is connected with the air bag 8 through an air pipe; the second end of the tee joint is connected with a first exhaust valve 11 through an air pipe; and the third end of the tee joint is sequentially connected with a gas pressure gauge 13, a pressure stabilizing valve 14 and a high-pressure gas steel cylinder 15 through a gas pipe.
The oil return tank comprises a rinsing oil return tank 17 positioned at the upper part and a checking oil return tank 22 positioned at the lower part; the rinse oil return tank 17 is provided with a second exhaust valve 16, a second oil inlet valve 18 and a second oil discharge valve 19 in sequence from top to bottom. The check oil return tank 22 is provided with a third exhaust valve 20, a third oil inlet valve 21 and a third oil outlet valve 23 in sequence from top to bottom.
Preferably, the oil storage tank 7 and the oil return tank are both made of transparent and oil-resistant hard engineering plastics.
In this embodiment, the bottom of the box body 3 is provided with a self-locking universal wheel 5. Handles 1 are arranged on two sides of the box body 3. And a pull rod 10 is arranged at the top of the box body 3.
The working principle of the standard oil sample storage device is as follows:
(1) oil injection flow: the first oil discharge valve 9 and the sampling valve 4 of the oil storage tank 7 are closed, the pressure stabilizing valve 14 is closed, the first oil inlet valve 2 and the exhaust overflow valve 6 of the oil storage tank are opened, and the first exhaust valve 11 is opened. And (3) injecting the standard oil sample into the oil storage tank through the first oil inlet valve 2, closing the first exhaust valve 11 after the standard oil sample flows out of the exhaust overflow valve 6 at the upper part, and completing the oil injection process through the exhaust overflow valve 6 and the first oil inlet valve 2.
(2) An oil drainage process: the insulating oil in the oil storage tank can be discharged by opening the high-pressure gas steel cylinder 15 and the pressure stabilizing valve 14, closing the first exhaust valve 11 and opening the first oil exhaust valve 9 of the oil storage tank.
(3) A cleaning process: and repeating the oil injection process and the oil drainage process for 3 times to complete the cleaning process.
(4) A pressurizing process: the first vent valve 11 is closed and the high pressure gas cylinder 15 and the surge valve 14 are opened and the reservoir is in a pressurized state. The pressurization pressure can be adjusted by adjusting the pressure maintaining valve 14. In the pressurizing process, the sampling valve 4 is opened to calibrate the standard oil sample in an off-line mode, and the first oil discharge valve 9 is opened to supply oil to the online monitoring device for the dissolved gas in the transformer oil.
(5) Rinsing process: connecting an oil discharge port of the oil storage device with an oil inlet of an online monitoring device, connecting an oil outlet of the online monitoring device with an oil inlet of a rinsing oil return tank, opening a high-pressure gas steel cylinder 15 and a pressure stabilizing valve 14, and closing a first exhaust valve 11; and opening a second oil inlet valve 18 and a second exhaust valve 16 of the rinse oil return tank, closing a second oil drain valve 19, opening a first oil drain valve 9 of the oil storage tank, and closing an exhaust overflow valve 6, a first oil inlet valve 2 and a sampling valve 4. At the moment, the pump of the online monitoring device can be used for pumping oil into the online monitoring device, the oil pressure of the online monitoring device can be adjusted through the pressure stabilizing valve 14, the oil after being lubricated is discharged into a rinsing oil return tank for recycling, and the influence on the site is avoided.
(6) And (3) checking flow: connecting an oil discharge port of the oil storage device with an oil inlet of an online monitoring device, connecting an oil outlet of the online monitoring device with an oil inlet of a check oil return tank, opening a high-pressure gas steel cylinder 15 and a pressure stabilizing valve 14, and closing a first exhaust valve 11; and opening a third oil inlet valve 21 and a third exhaust valve 20 of the check oil return tank, closing a third oil drain valve 23, opening a first oil drain valve 9 of the oil storage tank, and closing an exhaust overflow valve 6, a first oil inlet valve 2 and a sampling valve 4. At the moment, the oil can be pumped into the online monitoring device by using a pump of the online monitoring device, the oil can also be pumped into the online monitoring device by adjusting the pressure stabilizing valve 14, and the verified oil is discharged into the verification oil return tank for recycling, so that the influence on the site is avoided.
It should be noted that before the device is used, the pressure-stabilizing valve 14 needs to be adjusted to a proper pressure (generally 0.04Mpa), and the normal operation procedures include a cleaning procedure, an oil injection procedure, a pressurization procedure, a rinsing procedure and a verification procedure.
As can be seen from the above description, the standard oil sample storage device provided in this embodiment has the following beneficial effects: the standard oil appearance is stored in the cavity between oil tank and the gasbag, is difficult for receiving the influence of ambient pressure and temperature, can avoid oil appearance distortion, maintains the stability of standard oil appearance, and in addition, the device structure is simple and easy, the gas component content of preserving is stable, easy operation, portable, but the gas component content of persistent storage is stable unchangeable, can satisfy the requirement of on-the-spot check-up.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. A standard oil sample storage device for on-site verification is characterized by comprising a box body, wherein an oil storage tank, an oil return tank and a gas assembly are arranged in the box body;
an air bag is arranged in the oil storage tank, a cavity between the oil storage tank and the air bag is used for storing a standard oil sample, an exhaust overflow valve, a first oil inlet valve, a sampling valve and a first oil exhaust valve which are connected through oil pipes are respectively arranged at the top, the upper part, the lower part and the bottom of the oil storage tank, and the air bag is connected with the gas assembly through an air pipe;
the gas assembly comprises a high-pressure gas steel cylinder, a pressure stabilizing valve, a gas pressure gauge, a tee joint and a first exhaust valve; the first end of the tee joint is connected with the air bag through an air pipe; the second end of the tee joint is connected with the first exhaust valve through an air pipe; the third end of the tee joint is sequentially connected with the gas pressure gauge, the pressure stabilizing valve and the high-pressure gas steel cylinder through a gas pipe;
the oil return tank comprises a rinsing oil return tank positioned at the upper part and a checking oil return tank positioned at the lower part; the rinse oil return tank is equipped with second discharge valve, second inlet valve and second oil extraction valve from top to bottom in proper order, the check-up oil return tank is equipped with third discharge valve, third inlet valve and third oil extraction valve from top to bottom in proper order.
2. The standard oil sample storage device for field verification of claim 1, wherein the bottom of the tank body is provided with self-locking universal wheels.
3. The standard oil sample storage device for field verification of claim 1, wherein handles are provided on both sides of the tank.
4. The standard oil sample storage device for on-site verification of claim 1, wherein a pull rod is arranged at the top of the tank body.
5. The standard oil sample storage device for on-site verification of claim 1, wherein the oil storage tank and the oil return tank are made of transparent and oil-resistant hard engineering plastics.
6. The standard oil sample storage device for field verification of claim 1, wherein the air bag is a nitrile rubber air bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022382547.6U CN214174383U (en) | 2020-10-23 | 2020-10-23 | A standard oil appearance storage device for on-spot check-up |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022382547.6U CN214174383U (en) | 2020-10-23 | 2020-10-23 | A standard oil appearance storage device for on-spot check-up |
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| CN214174383U true CN214174383U (en) | 2021-09-10 |
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| CN202022382547.6U Active CN214174383U (en) | 2020-10-23 | 2020-10-23 | A standard oil appearance storage device for on-spot check-up |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045782A (en) * | 2022-06-27 | 2022-09-13 | 徐州徐工挖掘机械有限公司 | Fuel oil cooling system, engineering machinery and oil liquid sampling method thereof |
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2020
- 2020-10-23 CN CN202022382547.6U patent/CN214174383U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045782A (en) * | 2022-06-27 | 2022-09-13 | 徐州徐工挖掘机械有限公司 | Fuel oil cooling system, engineering machinery and oil liquid sampling method thereof |
| CN115045782B (en) * | 2022-06-27 | 2024-03-29 | 徐州徐工挖掘机械有限公司 | Fuel cooling system, engineering machinery and oil liquid sampling method thereof |
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