CN203348901U - Automatic nitrogen supplement system for long-distance transport of large transformer - Google Patents
Automatic nitrogen supplement system for long-distance transport of large transformer Download PDFInfo
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- CN203348901U CN203348901U CN 201320346445 CN201320346445U CN203348901U CN 203348901 U CN203348901 U CN 203348901U CN 201320346445 CN201320346445 CN 201320346445 CN 201320346445 U CN201320346445 U CN 201320346445U CN 203348901 U CN203348901 U CN 203348901U
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- nitrogen
- transformer
- pressure
- oil tank
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Abstract
An automatic nitrogen supplement system for long-distance transport of a large transformer comprises a transformer oil tank and a nitrogen cylinder filled with nitrogen, wherein the oil tank is connected with an oil filling valve; an automatic nitrogen supplement device is arranged between the nitrogen cylinder and the oil filling valve; and the automatic nitrogen supplement device is a differential pressure valve. The system can control nitrogen pressure in the transformer according to technological requirements, can stop supplementing nitrogen when pressure in the oil tank reaches a certain value, can automatically open the valve to supplement the nitrogen when the pressure in the oil tank is lower than a certain value, can ensure the nitrogen pressure in the transformer within a range meeting the technological requirements for a long time, and allows the transformer to be insulated and dry and not to absorb moisture.
Description
Technical field
The utility model relates to Transformer Manufacturing Technology, is the transformer transporting device, and concrete is the automatic nitrogen charger of transformer transporting.
Background technique
In high power capacity, high-tension high-power transformer manufacture process, in order to guarantee in transformer long-distance transport process as guaranteeing the inner insulation dry of transformer non-hygroscopic (water content of technological requirement insulation is below 0.5%).To fill nitrogen transportation (nitrogen gas purity 99.99%), but for guaranteeing the pressure of the inner nitrogen of oil tank of transformer, traditional method is that the arrangement personnel follow car, at any time the oil tank of transformer internal pressure is monitored, this method not only can not be regulated the pressure of nitrogen in oil tank of transformer timely, and can give in transportation process and make troubles.In addition, when high-power transformer outlet transportation, outlet transformer has arrived on ship, chronic (need that have two months) that walk, and the long time can not the arrangement personnel be monitored like this, and on ship, does not also allow with the people.Therefore invent a kind of automatic nitrogen charger, realize when in the process of transformer long-distance transport, the transformer built-in electrical insulation is dry very necessary.
The model utility content
The purpose of this utility model is that the high-power transformer for prior art fills nitrogen transportation existing problems, and the automatic makeup nitrogen device of high-power transformer long-distance transport is provided, and can, according to the pressure condition of oil tank of transformer inside nitrogen, realize automatic nitrogen-charging.
The purpose of this utility model is to realize by such technological scheme, a kind of automatic makeup nitrogen system of high-power transformer long-distance transport, comprise oil tank of transformer and rush the nitrogen bottle that nitrogen is housed, being connected with fuel feeding valve on fuel tank, it is characterized in that being provided with automatic makeup nitrogen device between nitrogen bottle and fuel feeding valve.
During concrete enforcement, automatic makeup nitrogen device is pressure difference valve.Pressure difference valve does not need the external energy, relies on and is adjusted the variation of medium self pressure to automatically adjust, and automatically eliminates the changes in flow rate that pressure surge causes, constant user's inlet outlet pressure differential.
During concrete enforcement, between fuel feeding valve and automatic makeup nitrogen device, be provided with pressure gauge.Pressure gauge can be seen the air pressure of the nitrogen in fuel tank.
The beneficial effects of the utility model are:
1. can be controlled transformer inside nitrogen pressure by technological requirement, can be stopped mending nitrogen when tank internal pressure reaches certain value, can automatically open valve when tank internal pressure during lower than certain value and be mended nitrogen.
2. can guarantee for a long time that the inner nitrogen pressure of transformer, in the scope of technological requirement, makes transformer insulated drying non-hygroscopic.
3. adjust on request parameter while dispatching from the factory, do not need the personnel tracking monitoring.
4. nitrogen-filling apparatus is reusable, has saved fund, has improved the transformer reliability of operation.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, model utility is further illustrated.
Fig. 1 is linkage structure schematic diagram of the present utility model.
In figure: 1, pressure difference valve 2, fuel tank 3, fuel feeding valve 4, pressure gauge 11, air inlet nozzle
Embodiment is made further non-limiting description below in conjunction with drawings and Examples to the utility model:
In Fig. 1, a kind of automatic makeup nitrogen system of high-power transformer long-distance transport, comprise oil tank of transformer 2, be connected with fuel feeding valve 3 on fuel tank 2, fuel feeding valve 3 is connected with pressure difference valve 1,1 of fuel feeding valve 3 and pressure difference valve are provided with pressure gauge 4, and an end of fuel feeding valve 3 is provided with air inlet nozzle 11, and air inlet nozzle 11 is connected with the nitrogen bottle that nitrogen is equipped with in punching.Pressure difference valve 1 does not need the external energy, relies on and is adjusted the variation of medium self pressure to automatically adjust, and automatically eliminates the changes in flow rate that pressure surge causes, constant user's inlet outlet pressure differential.Pressure gauge 4 can be seen the air pressure of the nitrogen in fuel tank.
During use, pressure difference valve 1 keeps oil tank of transformer 2 internal air pressures to be greater than the lower limit of setting.If fuel tank 2 internal air pressures are lower than the lower limit of setting, pressure difference valve 1 is opened, and automatically fills into gas; If the oil tank of transformer internal air pressure is higher than the upper limit of setting, pressure difference valve 1 is closed automatically.The utility model utilizes the variation of oil tank of transformer internal pressure, feeds back to that pressure difference valve 1 is interior to be controlled, and realizes automatic makeup nitrogen, makes the inner nitrogen pressure of oil tank of transformer in the technological requirement scope, guarantees transformer inside in transportation and insulate while only putting to scene non-hygroscopic.
Finally, it is also to be noted that, what more than enumerate is only specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from disclosed content of the present utility model, all should think protection domain of the present utility model.
Claims (3)
1. the automatic makeup nitrogen system of a high-power transformer long-distance transport, comprise oil tank of transformer and rush the nitrogen bottle that nitrogen is housed, and is connected with fuel feeding valve on fuel tank, it is characterized in that being provided with automatic makeup nitrogen device between nitrogen bottle and fuel feeding valve.
2. the automatic makeup nitrogen system of a kind of high-power transformer long-distance transport according to claim 1, is characterized in that above-mentioned automatic makeup nitrogen device is pressure difference valve.
3. the automatic makeup nitrogen system of a kind of high-power transformer long-distance transport according to claim 1 and 2, is characterized in that being provided with pressure gauge between fuel feeding valve and automatic makeup nitrogen device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320346445 CN203348901U (en) | 2013-06-18 | 2013-06-18 | Automatic nitrogen supplement system for long-distance transport of large transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320346445 CN203348901U (en) | 2013-06-18 | 2013-06-18 | Automatic nitrogen supplement system for long-distance transport of large transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203348901U true CN203348901U (en) | 2013-12-18 |
Family
ID=49748801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320346445 Expired - Lifetime CN203348901U (en) | 2013-06-18 | 2013-06-18 | Automatic nitrogen supplement system for long-distance transport of large transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203348901U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775060A (en) * | 2013-03-28 | 2014-05-07 | 中国石油天然气股份有限公司 | Thermocouple temperature compensation pressure measurement nitrogen supplement control instrument and test method |
-
2013
- 2013-06-18 CN CN 201320346445 patent/CN203348901U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775060A (en) * | 2013-03-28 | 2014-05-07 | 中国石油天然气股份有限公司 | Thermocouple temperature compensation pressure measurement nitrogen supplement control instrument and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |
|
| CX01 | Expiry of patent term |