CN213581186U - Device for testing relation between internal characteristic gas and pressure of oil-less power equipment - Google Patents
Device for testing relation between internal characteristic gas and pressure of oil-less power equipment Download PDFInfo
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- CN213581186U CN213581186U CN202022602036.0U CN202022602036U CN213581186U CN 213581186 U CN213581186 U CN 213581186U CN 202022602036 U CN202022602036 U CN 202022602036U CN 213581186 U CN213581186 U CN 213581186U
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Abstract
The utility model relates to a device of experimental few oily power equipment internal characteristic gas and pressure relation belongs to the experimental technical field of transformer. The technical scheme is as follows: the top of the oil tank (1) is provided with a main body gas injection valve (9), a main body gas extraction valve (19) and a main body pressure release valve (10), a characteristic gas bottle (25) is connected with the main body gas injection valve (9) through a gas flowmeter control system (24), the bottom of the side wall of the oil tank (1) is provided with a main body oil injection valve (14), and the main body oil injection valve (14) is connected with an oil injection system (26); the top of the conservator (2) is provided with an conservator air injection valve (4), an conservator air extraction valve (5), a high-precision pressure gauge and an conservator injection hole, and a vacuum pump system is connected with the conservator air extraction valve. The utility model discloses a simulation different voltage levels, not the less oily equipment's of co-altitude gas and the pressure condition have realized the simulation of typical less oily power equipment internal environment, obtain the test result.
Description
Technical Field
The utility model relates to a device of experimental few oily power equipment internal characteristic gas and pressure relation belongs to the experimental technical field of transformer.
Background
At present, a large amount of characteristic gas is generated when few-oil power equipment such as a sleeve, a mutual inductor and the like operated by a power grid fails, and oil injection and even explosion of the few-oil power equipment such as the sleeve, the mutual inductor and the like can be caused in severe cases. The gas content and the generation rate of the gas with different characteristics have different influences on the internal pressure of the oil-less equipment. Therefore, it is necessary to design a set of special test device to develop the research on the relationship between the characteristic gas and the pressure inside the oil-less power equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device of experimental few oily power equipment internal characteristic gas and pressure relation can be in the relation of the different characteristic gas of few oily power equipment internal test and pressure, and easy operation, the degree of accuracy are high, and the controllability is high, and low cost, easily popularization and application solve the above-mentioned problem that the background art exists.
The technical scheme of the utility model is that:
a device for testing the relation between characteristic gas and pressure in less-oil power equipment comprises an oil tank, an oil conservator gas injection valve, an oil conservator gas extraction valve, a high-precision pressure gauge, a connecting pipe system, a main body gas injection valve, a main body pressure release valve, a main body oil extraction valve, a main body oil injection valve, a main body oil drain valve, an oil conservator injection hole, a main body gas extraction valve, an oil tank flange, a vacuum pump system, a gas flowmeter control system, a characteristic gas bottle and an oil injection system; the bottom of the oil conservator is connected with one end of a connecting pipe system, and the other end of the connecting pipe system is connected with the top of an oil tank through an oil tank flange; the top of the oil tank is provided with a main body gas injection valve, a main body gas extraction valve and a main body pressure release valve, the characteristic gas bottle is connected with the main body gas injection valve through a gas flowmeter control system, the side wall of the oil tank is provided with a main body oil extraction valve, the bottom of the side wall of the oil tank is provided with a main body oil injection valve, and the main body oil injection valve is connected with an oil injection system; the top of the conservator is provided with an conservator air injection valve, an conservator air exhaust valve, a high-precision pressure gauge and an conservator injection hole, and the vacuum pump system is connected with the conservator air exhaust valve.
The oil tank is provided with a thermometer seat, and the thermometer seat is provided with a thermometer.
And an oil level gauge is arranged on the oil conservator.
And a stop valve is arranged on the connecting pipe system.
And a main body lifting hook is arranged on the side wall of the oil tank.
And the bottom of the oil tank is provided with main body supporting legs.
The oil tank comprises an oil tank body and an oil tank cover, a main body sealing rubber strip is arranged between the oil tank body and the oil tank cover in a matching mode, and the oil tank cover, the main body sealing rubber strip and the oil tank body are fixed through main body fixing bolts; the oil conservator comprises an oil conservator box body and an oil conservator box cover, an oil conservator sealing rubber strip is arranged between the oil conservator box body and the oil conservator box cover in a matched mode, and the oil conservator box cover, the oil conservator sealing rubber strip and the oil conservator box body are fixed through an oil conservator fixing bolt.
The main body gas injection valve, the main body gas extraction valve and the main body pressure release valve are arranged on the oil tank cover; the oil conservator air injection valve, the oil conservator air extraction valve, the high-precision pressure gauge and the oil conservator injection hole are arranged on the oil conservator box cover.
Two oil conservator hanging rings are arranged on the oil conservator cover.
The test device comprises the following specific steps:
s1, setting the height of the connecting pipe system, selecting the connecting pipe system, hoisting the conservator, and connecting the conservator, the connecting pipe system and the oil tank;
s2, closing the main gas injection valve and the conservator gas injection valve, connecting the vacuum pump system with the conservator gas extraction valve, vacuumizing, and simultaneously opening the high-precision pressure gauge to observe the internal pressure;
s3, connecting the main body oil injection valve with an oil injection system for oil injection, and observing the oil level condition of an oil level indicator on the oil conservator;
s4, closing the main oil injection valve, standing and observing a high-precision pressure gauge to detect the internal pressure;
and S5, connecting the characteristic gas bottle to a gas flowmeter control system, connecting the gas flowmeter control system with a main body gas injection valve, opening the valve of the characteristic gas bottle, adjusting the gas flow rate through the gas flowmeter control system, opening the main body gas injection valve to start gas injection, observing and recording the numerical value of the high-precision pressure gauge, and finishing measurement.
The utility model discloses an actively the effect: 1. the gas and pressure conditions of the oil-less equipment with different voltage grades and different heights can be simulated by only replacing the combination mode of different connecting pipe systems, and a plurality of inconveniences caused by repeated design of different devices are avoided. 2. And a vacuumizing oil injection method is adopted, so that the simulation of the internal environment of typical oil-less power equipment is realized. 3. The invention has been applied, the research of the influence of gases with different characteristics on the internal pressure of the oil-less equipment is developed in a laboratory, the test result can reflect the more real engineering condition, and the invention has certain engineering practical significance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a side view of the present invention;
FIG. 3 is a top view of the fuel tank of the present invention;
FIG. 4 is a schematic structural view of the conservator of the present invention;
FIG. 5 is a side view of the conservator of the present invention;
fig. 6 is a top view of the oil conservator of the present invention;
in the figure: the device comprises an oil tank 1, an oil conservator 2, an oil conservator hanging ring 3, an oil conservator gas injection valve 4, an oil conservator air extraction valve 5, a high-precision pressure gauge 6, a stop valve 7, a connecting pipe system 8, a main body gas injection valve 9, a main body pressure release valve 10, a main body fixing bolt 11, a main body lifting hook 12, a main body oil extraction valve 13, a main body oil injection valve 14, a main body oil drain valve 15, a main body supporting leg 16, an oil conservator injection hole 17, an oil level gauge 18, a main body air extraction valve 19, a main body sealing rubber strip 20, an oil conservator sealing rubber strip 21, an oil tank flange 22, a vacuum pump system 23, a gas flowmeter control system 24, a characteristic gas bottle.
Detailed Description
The invention is further described with reference to the following figures and examples:
a device for testing the relation between characteristic gas and pressure in less-oil power equipment comprises an oil tank 1, an oil conservator 2, an oil conservator gas injection valve 4, an oil conservator gas extraction valve 5, a high-precision pressure gauge 6, a connecting pipe system 8, a main body gas injection valve 9, a main body pressure release valve 10, a main body gas extraction valve 13, a main body oil injection valve 14, a main body oil drain valve 15, an oil conservator injection hole 17, a main body gas extraction valve 19, an oil tank flange 22, a vacuum pump system 23, a gas flowmeter control system 24, a characteristic gas bottle 25 and an oil injection system 26; the bottom of the oil conservator 2 is connected with one end of a connecting pipe system 8, and the other end of the connecting pipe system 8 is connected with the top of the oil tank 1 through an oil tank flange 22; the top of the oil tank 1 is provided with a main body gas injection valve 9, a main body gas extraction valve 19 and a main body pressure release valve 10, a characteristic gas bottle 25 is connected with the main body gas injection valve 9 through a gas flowmeter control system 24, the side wall of the oil tank 1 is provided with a main body oil extraction valve 13, the bottom of the side wall of the oil tank 1 is provided with a main body oil injection valve 14, and the main body oil injection valve 14 is connected with an oil injection system 26; the top of the conservator 2 is provided with an conservator air injection valve 4, an conservator air extraction valve 5, a high-precision pressure gauge 6 and an conservator injection hole 17, and a vacuum pump system 23 is connected with the conservator air extraction valve 5.
The oil tank 1 is provided with a thermometer seat 27, and the thermometer seat 27 is provided with a thermometer.
An oil level gauge 18 is arranged on the oil conservator 2.
And a stop valve 7 is arranged on the connecting pipe system 8.
And a main body lifting hook 12 is arranged on the side wall of the oil tank 1.
The bottom of the oil tank 1 is provided with main body supporting legs 16.
The oil tank 1 comprises an oil tank body and an oil tank cover, a main body sealing rubber strip 20 is arranged between the oil tank body and the oil tank cover in a matching mode, and the oil tank cover, the main body sealing rubber strip 20 and the oil tank body are fixed through a main body fixing bolt 11; the conservator 2 comprises an conservator box body and an conservator box cover, an conservator sealing rubber strip 21 is arranged between the conservator box body and the conservator box cover in a matched mode, and the conservator box cover, the conservator sealing rubber strip 21 and the conservator box body are fixed through conservator fixing bolts.
The main body gas injection valve 9, the main body gas extraction valve 19 and the main body pressure release valve 10 are arranged on the oil tank cover; the conservator air injection valve 4, the conservator air extraction valve 5, the high-precision pressure gauge 6 and the conservator injection hole 17 are arranged on the conservator cover.
Two oil conservator hanging rings 3 are arranged on the oil conservator cover.
With reference to fig. 1-6, the present invention is embodied as follows:
four holes are opened at 1 top of oil tank, can install main part gas injection valve 9, main part bleeder valve 19, main part pressure release valve 10 and high accuracy manometer 6 respectively, after the conservator 2 assembles with oil tank 1 through connecting pipe system 8, can realize evacuation, oiling, gas injection, detect this device internal pressure function.
The oil tank 1 is provided with a main body suction valve 19 and a main body oil filling valve 14, and can finish the vacuum oil filling work.
Oil tank 1 is equipped with the main part and gets fuel tap 13, can get inside oil appearance, realizes carrying out the gas content chemical examination in the oil to inside oil appearance under the internal environment condition not influencing.
The connecting pipe system can be formed by selecting one connecting pipe with the length of 1 meter and two connecting pipes with the length of 2 meters, and five height combinations with the lengths of 1, 2, 3, 4 and 5 meters can be formed.
And an oil level gauge 18 is arranged on the oil conservator 2, so that the height of the oil surface in the oil conservator can be accurately checked.
All be equipped with main part lifting hook 12 on four lateral walls of oil tank 1 for the oil tank hoist and mount are removed more conveniently.
Two lifting rings are arranged on the oil conservator 2, and when the height is too high, the lifting belts can be passed through to hoist, so that the stability and the safety are guaranteed.
The oil tank 1 is provided with a thermometer seat 27, and the temperature of the medium in the oil tank can be measured after the thermometer is inserted.
The utility model discloses still can develop the extension research:
1. the utility model discloses the separation can be realized to conservator 2 and oil tank 1, and oil tank 1 can form a test device alone, carries out the oiling behind the oil tank flange 22 installation sleeve at 1 top of oil tank, and sleeve pipe end connection is surveyed the appearance piece and can is carried out high-voltage test, verifies and is surveyed the appearance piece under different pressure, the verification of insulating properties when pouring into different characteristic gas.
2. The utility model discloses still can expand the function and develop the oil paper insulation sample piece insulating properties research and characteristic gas oil middle solubility research under different temperatures, different pressure.
The method is characterized in that gas solubility tests of gases with different characteristics at different pressures and different temperatures are carried out in the oil-less power equipment, and the test steps are as follows:
s1, setting the height of the connecting pipe system, hoisting the conservator after selection, and connecting the conservator 2, the connecting pipe system 8 and the oil tank 1;
s2, closing the main gas injection valve 9 and the conservator gas injection valve 4, connecting the vacuum pump system 23 with the conservator gas extraction valve 5, vacuumizing, simultaneously opening the high-precision pressure gauge 6 to observe the internal pressure, and pumping the pressure to the required measurement pressure value;
s3, connecting the main body oil injection valve 14 with the oil injection system 26 for oil injection, and observing the oil level condition of the oil level indicator 18 on the oil conservator 2;
s4, closing the main body oil filling valve 14, standing and observing the high-precision pressure gauge 6 to detect the internal pressure;
s5, connecting the characteristic gas bottle 25 to the gas flowmeter control system 24, connecting the gas flowmeter control system 24 with the main body gas injection valve 9, opening the valve of the characteristic gas bottle 25, adjusting the gas flow rate through the gas flowmeter control system 24, opening the main body gas injection valve 9 to start gas injection, and observing and recording the values of the thermometer and the high-precision pressure gauge 6 in the thermometer seat 27;
and S6, sampling oil through the main oil sampling valve 13 at the planned time node, and testing the gas content in the oil to obtain the gas solubility of the characteristic gas under the pressure.
Claims (5)
1. The utility model provides a device of experimental few oily power equipment internal characteristic gas and pressure relation which characterized in that: the device comprises an oil tank (1), an oil conservator (2), an oil conservator air injection valve (4), an oil conservator air extraction valve (5), a high-precision pressure gauge (6), a connecting pipe system (8), a main body air injection valve (9), a main body pressure release valve (10), a main body oil extraction valve (13), a main body oil injection valve (14), a main body oil drain valve (15), an oil conservator injection hole (17), a main body air extraction valve (19), an oil tank flange (22), a vacuum pump system (23), a gas flowmeter control system (24), a characteristic gas bottle (25) and an oil injection system (26); the bottom of the oil conservator (2) is connected with one end of a connecting pipe system (8), and the other end of the connecting pipe system (8) is connected with the top of the oil tank (1) through an oil tank flange (22); the top of the oil tank (1) is provided with a main body gas injection valve (9), a main body gas extraction valve (19) and a main body pressure release valve (10), a characteristic gas bottle (25) is connected with the main body gas injection valve (9) through a gas flowmeter control system (24), the side wall of the oil tank (1) is provided with a main body oil extraction valve (13), the bottom of the side wall of the oil tank (1) is provided with a main body oil injection valve (14), and the main body oil injection valve (14) is connected with an oil injection system (26); the top of the conservator (2) is provided with an conservator air injection valve (4), an conservator air extraction valve (5), a high-precision pressure gauge (6) and an conservator injection hole (17), and a vacuum pump system (23) is connected with the conservator air extraction valve (5).
2. The device for testing the internal characteristic gas-pressure relationship of the oil-less power equipment as claimed in claim 1, wherein: the oil tank (1) is provided with a thermometer seat (27), and the thermometer seat (27) is provided with a thermometer.
3. The device for testing the internal characteristic gas-pressure relationship of the oil-less power equipment as claimed in claim 1, wherein: an oil level gauge (18) is arranged on the oil conservator (2).
4. The device for testing the internal characteristic gas-pressure relationship of the oil-less power equipment as claimed in claim 1, wherein: and a stop valve (7) is arranged on the connecting pipe system (8).
5. The device for testing the internal characteristic gas-pressure relationship of the oil-less power equipment as claimed in claim 1, wherein: the oil tank (1) comprises an oil tank body and an oil tank cover, a main body device body sealing rubber strip (20) is arranged between the oil tank body and the oil tank cover in a matching mode, the oil tank cover, the main body device body sealing rubber strip (20) and the oil tank body are fixed through a main body fixing bolt (11), and two oil conservator hanging rings (3) are arranged on the oil conservator cover; the conservator (2) comprises an conservator box body and an conservator box cover, an conservator sealing rubber strip (21) is arranged between the conservator box body and the conservator box cover in a matched mode, and the conservator box cover, the conservator sealing rubber strip (21) and the conservator box body are fixed through conservator fixing bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022602036.0U CN213581186U (en) | 2020-11-12 | 2020-11-12 | Device for testing relation between internal characteristic gas and pressure of oil-less power equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022602036.0U CN213581186U (en) | 2020-11-12 | 2020-11-12 | Device for testing relation between internal characteristic gas and pressure of oil-less power equipment |
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| CN213581186U true CN213581186U (en) | 2021-06-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112363032A (en) * | 2020-11-12 | 2021-02-12 | 保定天威保变电气股份有限公司 | Device and method for testing relation between internal characteristic gas and pressure of oil-less power equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112363032A (en) * | 2020-11-12 | 2021-02-12 | 保定天威保变电气股份有限公司 | Device and method for testing relation between internal characteristic gas and pressure of oil-less power equipment |
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