CN103245529B - Oil-way gas evacuation system and method for on-line monitoring device of gas in transformer oil - Google Patents
Oil-way gas evacuation system and method for on-line monitoring device of gas in transformer oil Download PDFInfo
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- CN103245529B CN103245529B CN201310080632.9A CN201310080632A CN103245529B CN 103245529 B CN103245529 B CN 103245529B CN 201310080632 A CN201310080632 A CN 201310080632A CN 103245529 B CN103245529 B CN 103245529B
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Abstract
The invention relates to an oil-way gas evacuation system and an oil-way gas evacuation method for an on-line monitoring device of gas in transformer oil. The oil-way gas evacuation system comprises a first flange, an oil pump, a first three-way solenoid valve, a second three-way solenoid valve, a second flange and a controller, wherein a first flange exhaust vent is formed in the first flange, and is in sealing connection with a first flange exhaust bolt; and a second flange exhaust hole is formed in the second flange, and is in sealing connection with a second flange exhaust bolt. The oil-way gas evacuation system and the oil-way gas evacuation method have the advantages that (1) oil-way evacuation operation can be carried out under electrified condition of a transformer, and the operation of the transformer is not influenced; and (2) gas in an oil-way can be thoroughly evacuated, no dead angles exist, and transformer oil is not contaminated in the operation process.
Description
Technical field
The present invention relates to electrical equipment online supervision technology, be specifically related to the oil circuit evacuate air system and method for On-Line Monitor Device of Gas in Oil of Transformer.
Background technology
Transformer oil is cooling and the medium insulated in oil-filled transformer, and its performance directly has influence on the running status of transformer.Therefore in transformer operational process, do not allow ambient atmos and impurity to enter in oil tank of transformer.And On-Line Monitor Device of Gas in Oil of Transformer (as the application number transformer oil gas-detecting device that is 201210094631.5 disclosed in Chinese invention application) must be connected by pipeline with oil tank of transformer, realize drawing oil sample from fuel tank and analyzing, to the oil after analysis be returned in fuel tank simultaneously, not allow to bring ambient atmos in whole process.Therefore, in On-Line Monitor Device of Gas in Oil of Transformer installation, debugging, operational process, do not allow ambient atmos and impurity to enter in oil tank of transformer, in especially installation and debugging process, the gas in pipeline is thoroughly emptying.Gas in Oil of Transformer on-line monitoring is drawn oil sample to seldom, research mainly concentrates on the technical elements that draws oil sample being applied to test experiment in short side face research side by side both at home and abroad at present.If the patent No. is that " 201120078282 " name is called " a kind of oil sampling tool for main-transformer ", the patent No. is called patents such as " oil sealed sampling devices " for " 96225239 " name, all introduce a kind of from oil tank of transformer, take out typical oil sample be put in closed container, for test in laboratory, but this mode is not suitable for being applied to on-line monitoring.
Summary of the invention
The object of the present invention is to provide a kind of oil circuit evacuate air system of On-Line Monitor Device of Gas in Oil of Transformer, its can solve on-Line Monitor Device be connected with oil tank of transformer after evacuate air problem.
In order to achieve the above object, the technical solution adopted in the present invention is as follows:
The oil circuit evacuate air system of On-Line Monitor Device of Gas in Oil of Transformer, it comprises the first flange, oil pump, first three-way solenoid valve, second three-way solenoid valve, second flange and controller, the link of the first flange is connected with the first valve of an oil tank of transformer, the link of the second flange is connected with the second valve of described oil tank of transformer, the endpiece of the first flange, oil pump, the first interface of the first three-way solenoid valve is communicated with successively, second interface of the first three-way solenoid valve is communicated with the oil-in of described On-Line Monitor Device of Gas in Oil of Transformer, 3rd interface of the first three-way solenoid valve and the 3rd orifice of the second three-way solenoid valve, the endpiece of the second flange is communicated with the first interface of the second three-way solenoid valve, second interface of the second three-way solenoid valve is communicated with the oil return opening of described On-Line Monitor Device of Gas in Oil of Transformer, oil pump, the first three-way solenoid valve, the second three-way solenoid valve are all electrically connected with described controller, described first flange offers the first flange vent port, described first flange vent hole seal connects one first flange bleeder screw, described second flange offers the second flange vent port, described second flange vent hole seal connects one second flange bleeder screw.
Preferably, the endpiece of described first flange is communicated with oil pump by one first oil strainer, and the endpiece of described second flange is communicated with the first interface of the second three-way solenoid valve by one second oil strainer; Described first oil strainer offers the first oily filtering exhaust hole, described first oily filtering exhaust hole is tightly connected one first oily filtering exhaust bolt; Described second oil strainer offers the second oily filtering exhaust hole, described second oily filtering exhaust hole is tightly connected one second oily filtering exhaust bolt.Preferred further, have between the first oily filtering exhaust bolt and the first oil strainer and have one first rubber gasket; Have between second oily filtering exhaust bolt and the second oil strainer and have one second rubber gasket.
Preferably, there is one the 3rd rubber gasket between the first flange bleeder screw and the first flange; There is between second flange bleeder screw and the second flange one the 4th rubber gasket.
Preferably, the endpiece of the first flange is communicated with the entrance point of oil pump, and the endpiece of oil pump is communicated with the first interface of the first three-way solenoid valve.
Preferably, the 3rd interface of the first three-way solenoid valve passes through the 3rd orifice of a steel pipe and the second three-way solenoid valve.
Present invention also offers a kind of oil circuit evacuate air method of the oil circuit evacuate air system based on above-mentioned On-Line Monitor Device of Gas in Oil of Transformer, it comprises the following steps:
A, the first flange bleeder screw unscrewed on the first flange, open the first valve of oil tank of transformer, until there is transformer oil to flow out from the first flange vent port, then tightens the first flange bleeder screw, then close the first valve;
B, the second flange bleeder screw unscrewed on the second flange, open the second valve of oil tank of transformer, until there is transformer oil to flow out from the second flange vent port, then tightens the second flange bleeder screw, then close the second valve;
C, unscrew the second flange bleeder screw, open the first valve, a controller oil-feed pump powers on, pump start, now, the first interface of the first three-way solenoid valve, 3rd interface is opened, second interface of the first three-way solenoid valve is closed, the first interface of the second three-way solenoid valve, 3rd interface is opened, second interface of the second three-way solenoid valve is closed, transformer oil is successively along oil tank of transformer, first flange, oil pump, the first interface of the first three-way solenoid valve, 3rd interface of the first three-way solenoid valve, 3rd interface of the second three-way solenoid valve, the first interface of the second three-way solenoid valve, second flange flowing, until the second flange vent port has transformer oil to flow out,
The first three-way solenoid valve given by D, controller, the second three-way solenoid valve powers on, second interface of the first three-way solenoid valve, the second interface of the second three-way solenoid valve are all opened, transformer oil flows, until the second flange vent port has transformer oil to flow out along the oil return opening of the oil-in of oil tank of transformer, the first flange, oil pump, the first three-way solenoid valve, On-Line Monitor Device of Gas in Oil of Transformer, On-Line Monitor Device of Gas in Oil of Transformer, the second three-way solenoid valve, the second flange successively;
First valve, oil pump, the first three-way solenoid valve, second three-way solenoid valve of E, closedown oil tank of transformer, and tighten the second flange bleeder screw.
Present invention also offers the another kind of oil circuit evacuate air method based on the oil circuit evacuate air system of above-mentioned On-Line Monitor Device of Gas in Oil of Transformer, it comprises the following steps:
A, the first flange bleeder screw unscrewed on the first flange, open the first valve of oil tank of transformer, until there is transformer oil to flow out from the first flange vent port, then tightens the first flange bleeder screw, then close the first valve;
B, the second flange bleeder screw unscrewed on the second flange, open the second valve of oil tank of transformer, until there is transformer oil to flow out from the second flange vent port, then tightens the second flange bleeder screw, then close the second valve;
C, unscrew the first oily filtering exhaust bolt of the first oil strainer, open the first valve, until the first oily filtering exhaust hole has transformer oil to flow out, then tighten the first oily filtering exhaust bolt, then close the first valve;
D, unscrew the second oily filtering exhaust bolt of the second oil strainer, open the second valve, until the second oily filtering exhaust hole has transformer oil to flow out, then tighten the second oily filtering exhaust bolt, then close the second valve;
E, unscrew the second oily filtering exhaust bolt, open the first valve, a controller oil-feed pump powers on, pump start, now, the first interface of the first three-way solenoid valve, 3rd interface is opened, second interface of the first three-way solenoid valve is closed, the first interface of the second three-way solenoid valve, 3rd interface is opened, second interface of the second three-way solenoid valve is closed, transformer oil is successively along oil tank of transformer, first flange, first oil strainer, oil pump, the first interface of the first three-way solenoid valve, 3rd interface of the first three-way solenoid valve, 3rd interface of the second three-way solenoid valve, the first interface of the second three-way solenoid valve, second oil strainer flowing, until the second oily filtering exhaust hole has transformer oil to flow out,
The first three-way solenoid valve given by F, controller, the second three-way solenoid valve powers on, second interface of the first three-way solenoid valve, the second interface of the second three-way solenoid valve are all opened, transformer oil flows, until the second oily filtering exhaust hole has transformer oil to flow out along the oil return opening of the oil-in of oil tank of transformer, the first flange, the first oil strainer, oil pump, the first three-way solenoid valve, On-Line Monitor Device of Gas in Oil of Transformer, On-Line Monitor Device of Gas in Oil of Transformer, the second three-way solenoid valve, the second oil strainer successively;
First valve, oil pump, the first three-way solenoid valve, second three-way solenoid valve of G, closedown oil tank of transformer, and tighten the second oily filtering exhaust bolt.
The present invention has following beneficial effect:
(1) the emptying operation of oil circuit can be carried out in the charged situation of transformer, not affect transformer and run; (2) gas in the thorough emptying oil circuit of energy, does not stay at " dead angle ", does not pollute transformer oil in operating process.
Accompanying drawing explanation
Fig. 1 is the structural representation of the oil circuit evacuate air system of the On-Line Monitor Device of Gas in Oil of Transformer of the embodiment of the present invention one;
Fig. 2 is the structural representation of the first flange in Fig. 1;
Fig. 3 is the structural representation of the first oil strainer in Fig. 1;
Fig. 4 is the structural representation of the oil circuit evacuate air system of the On-Line Monitor Device of Gas in Oil of Transformer of the embodiment of the present invention two;
Reference numeral: 1, the first flange; 2, the second flange; 3, the first oil strainer; 4, the second oil strainer; 5, oil pump; 6, the first three-way solenoid valve; 7, the second three-way solenoid valve; 8, oil-in; 9, oil return opening; 10, the first flange bleeder screw; 11, the second flange bleeder screw; 12, the first oily filtering exhaust bolt; 13, the second oily filtering exhaust bolt; 14, the first valve; 141, valve switch; 15, the second valve; 151, valve switch; 16, the 3rd rubber gasket; 17, the first flange vent port; 18, the first oily filtering exhaust hole; 19, the first rubber gasket; 20, filter screen; 21, O-ring seal; 100, oil tank of transformer; 200, On-Line Monitor Device of Gas in Oil of Transformer.
Embodiment
Below, by reference to the accompanying drawings and embodiment, invention is described further.
Embodiment one
As shown in Figure 1 to Figure 3, the oil circuit evacuate air system of On-Line Monitor Device of Gas in Oil of Transformer, it comprises the first flange 1, first oil strainer 3, oil pump 5, first three-way solenoid valve 6, second three-way solenoid valve 7, second oil strainer 4, second flange 2 and controller (figure does not draw).
The link of the first flange 1 is connected with the first valve 14 of an oil tank of transformer 100, the link of the second flange 2 is connected with the second valve 15 of described oil tank of transformer 100, the endpiece of the first flange 1, first oil strainer 3, oil pump 5, the first interface CO of the first three-way solenoid valve 6 is communicated with successively, second interface NC of the first three-way solenoid valve 6 is communicated with the oil-in 8 of described On-Line Monitor Device of Gas in Oil of Transformer 200, 3rd interface NO of the first three-way solenoid valve 6 is communicated with the 3rd interface NO of the second three-way solenoid valve 7, the endpiece of the second flange 2 is communicated with the first interface CO of the second three-way solenoid valve 7 by the second oil strainer 4, second interface NC of the second three-way solenoid valve 7 is communicated with the oil return opening 9 of described On-Line Monitor Device of Gas in Oil of Transformer 200.Concrete, the endpiece of the first flange 1 is communicated with the entrance point of oil pump 5, and the endpiece of oil pump 5 is communicated with the first interface CO of the first three-way solenoid valve 6.3rd interface NO of the first three-way solenoid valve 6 is communicated with the 3rd interface NO of the second three-way solenoid valve 7 by a steel pipe (figure does not mark).
Oil pump 5, first three-way solenoid valve 6, second three-way solenoid valve 7 is all electrically connected with described controller.
Described first flange 1 offers the first flange vent port 17, and described first flange vent port 17 is tightly connected one first flange bleeder screw 10.Between first flange bleeder screw 10 and the first flange 1, there is one the 3rd rubber gasket 16.Described second flange 2 offers the second flange vent port, and described second flange vent hole seal connects one second flange bleeder screw 11.Between second flange bleeder screw 11 and the second flange 2, there is one the 4th rubber gasket.That is, the structure of the first flange 1 is consistent with the structure of the second flange 2.
Described first oil strainer 3 offers the first oily filtering exhaust hole 18, described first oily filtering exhaust hole 18 is tightly connected one first oily filtering exhaust bolt 12; Described second oil strainer 4 offers the second oily filtering exhaust hole, described second oily filtering exhaust hole is tightly connected one second oily filtering exhaust bolt 13.Have between first oily filtering exhaust bolt 12 and the first oil strainer 3 and have one first rubber gasket 19.Have between second oily filtering exhaust bolt 13 and the second oil strainer 4 and have one second rubber gasket.That is, the structure of the first oil strainer 3 is consistent with the structure of the second oil strainer 4.As shown in Figure 3, the first oil strainer 3 inside has filter screen 20 and O-ring seal 21.
The oil circuit evacuate air method of the oil circuit evacuate air system of the present embodiment, comprises the following steps:
A, the first flange bleeder screw 10 unscrewed on the first flange 1, namely the first valve 14(opening oil tank of transformer 100 unscrews the valve switch 141 on the first valve 14), until there is transformer oil to flow out from the first flange vent port 17, then tighten the first flange bleeder screw 10, then close the first valve 14;
B, the second flange bleeder screw 11 unscrewed on the second flange 2, namely the second valve 15(opening oil tank of transformer 100 unscrews the valve switch 151 on the second valve 15), until there is transformer oil to flow out from the second flange vent port, then tighten the second flange bleeder screw 11, then close the second valve 15;
C, unscrew the first oily filtering exhaust bolt 12 of the first oil strainer 3, open the first valve 14, until the first oily filtering exhaust hole 18 has transformer oil to flow out, then tighten the first oily filtering exhaust bolt 12, then close the first valve 14;
D, unscrew the second oily filtering exhaust bolt 13 of the second oil strainer 4, open the second valve 15, until the second oily filtering exhaust hole has transformer oil to flow out, then tighten the second oily filtering exhaust bolt 13, then close the second valve 15;
E, unscrew the second oily filtering exhaust bolt 13, open the first valve 14, a controller oil-feed pump 5 powers on, oil pump 5 starts, now, the first interface CO of the first three-way solenoid valve 6, 3rd interface NO opens, second interface NC of the first three-way solenoid valve 6 closes, the first interface CO of the second three-way solenoid valve 7, 3rd interface NO opens, second interface NC of the second three-way solenoid valve 7 closes, transformer oil is successively along oil tank of transformer 100, first flange 1, first oil strainer 3, oil pump 5, the first interface CO of the first three-way solenoid valve 6, 3rd interface NO of the first three-way solenoid valve 6, 3rd interface NO of the second three-way solenoid valve 7, the first interface CO of the second three-way solenoid valve 7, second oil strainer 4 flows, until the second oily filtering exhaust hole has transformer oil to flow out,
F, controller power on to the first three-way solenoid valve 6, second three-way solenoid valve 7, second interface NC of the first three-way solenoid valve 6, the second interface NC of the second three-way solenoid valve 7 all open, transformer oil flows, until the second oily filtering exhaust hole has transformer oil to flow out along oil return opening 9, second three-way solenoid valve 7, second oil strainer 4 of the oil-in 8 of oil tank of transformer 100, first flange 1, first oil strainer 3, oil pump, the first three-way solenoid valve 6, On-Line Monitor Device of Gas in Oil of Transformer 200, On-Line Monitor Device of Gas in Oil of Transformer 200 successively;
First valve 14, oil pump 5, first three-way solenoid valve 6, second three-way solenoid valve 7 of G, closedown oil tank of transformer 100, and tighten the second oily filtering exhaust bolt 13.
So far, evacuate air is completed in whole pipeline.
Emptying complete after, by controller oil-feed pump 5, first three-way solenoid valve 6, second three-way solenoid valve 7 powers on, oil pump 5 brings into operation, transformer oil process from oil tank of transformer 100 enters On-Line Monitor Device of Gas in Oil of Transformer 200 as underpass and returns in oil tank of transformer 100: oil tank of transformer 100---the first flange 1---the first oil strainer 3---oil pump 5---the first three-way solenoid valve 6---oil-in 8 of the On-Line Monitor Device of Gas in Oil of Transformer 200---internal oil passages of the On-Line Monitor Device of Gas in Oil of Transformer 200---oil return opening 9 of On-Line Monitor Device of Gas in Oil of Transformer 200---the second three-way solenoid valve 7---second oil strainer 4---the second flange 2, whole process is all run in pipeline liquid injecting device, complete the function that draws oil sample of On-Line Monitor Device of Gas in Oil of Transformer 200.
Embodiment two
As shown in Figure 4, the difference of the present embodiment and embodiment one is do not have the first oil strainer 3 and the second oil strainer 4.Namely the first flange 1 is directly communicated with oil pump 5, and the second flange 2 is directly communicated with the second three-way solenoid valve 7.Other structures are all identical with embodiment one.
The oil circuit evacuate air method of the oil circuit evacuate air system of the present embodiment, comprises the following steps:
A, the first flange bleeder screw 10 unscrewed on the first flange 1, open the first valve 14 of oil tank of transformer 100, until there is transformer oil to flow out from the first flange vent port 17, then tightens the first flange bleeder screw 10, then close the first valve 14;
B, the second flange bleeder screw 11 unscrewed on the second flange 2, open the second valve 15 of oil tank of transformer 100, until there is transformer oil to flow out from the second flange vent port, then tightens the second flange bleeder screw 11, then close the second valve 15;
C, unscrew the second flange bleeder screw 11, open the first valve 14, a controller oil-feed pump 5 powers on, oil pump 5 starts, now, the first interface CO of the first three-way solenoid valve 6, 3rd interface NO opens, second interface NC of the first three-way solenoid valve 6 closes, the first interface CO of the second three-way solenoid valve 7, 3rd interface NO opens, second interface NC of the second three-way solenoid valve 7 closes, transformer oil is successively along oil tank of transformer 100, first flange 1, oil pump 5, the first interface CO of the first three-way solenoid valve 6, 3rd interface NO of the first three-way solenoid valve 6, 3rd interface NO of the second three-way solenoid valve 7, the first interface CO of the second three-way solenoid valve 7, second flange 2 flows, until the second flange vent port has transformer oil to flow out,
D, controller power on to the first three-way solenoid valve 6, second three-way solenoid valve 7, second interface NC of the first three-way solenoid valve 6, the second interface NC of the second three-way solenoid valve 7 all open, transformer oil flows, until the second flange vent port has transformer oil to flow out along oil return opening 9, second three-way solenoid valve 7, second flange 2 of the oil-in 8 of oil tank of transformer 100, first flange 1, oil pump 5, first three-way solenoid valve 6, On-Line Monitor Device of Gas in Oil of Transformer 200, On-Line Monitor Device of Gas in Oil of Transformer 200 successively;
First valve 14, oil pump 5, first three-way solenoid valve 6, second three-way solenoid valve 7 of E, closedown oil tank of transformer 100, and tighten the second flange bleeder screw 11.
So far, evacuate air is completed in whole pipeline.
Emptying complete after, by controller oil-feed pump 5, first three-way solenoid valve 6, second three-way solenoid valve 7 powers on, oil pump 5 brings into operation, transformer oil process from oil tank of transformer 100 enters On-Line Monitor Device of Gas in Oil of Transformer 200 as underpass and returns in oil tank of transformer 100: oil tank of transformer 100---the first flange 1---oil pump 5---the first three-way solenoid valve 6---oil-in 8 of the On-Line Monitor Device of Gas in Oil of Transformer 200---internal oil passages of the On-Line Monitor Device of Gas in Oil of Transformer 200---oil return opening 9 of On-Line Monitor Device of Gas in Oil of Transformer 200---second three-way solenoid valve 7---the second flange 2, whole process is all run in pipeline liquid injecting device, complete the function that draws oil sample of On-Line Monitor Device of Gas in Oil of Transformer 200.
For a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection domain of the claims in the present invention.
Claims (8)
1. the oil circuit evacuate air system of On-Line Monitor Device of Gas in Oil of Transformer, it is characterized in that, comprise the first flange, oil pump, first three-way solenoid valve, second three-way solenoid valve, second flange and controller, the link of the first flange is connected with the first valve of an oil tank of transformer, the link of the second flange is connected with the second valve of described oil tank of transformer, the endpiece of the first flange, oil pump, the first interface of the first three-way solenoid valve is communicated with successively, second interface of the first three-way solenoid valve is communicated with the oil-in of described On-Line Monitor Device of Gas in Oil of Transformer, 3rd interface of the first three-way solenoid valve and the 3rd orifice of the second three-way solenoid valve, the endpiece of the second flange is communicated with the first interface of the second three-way solenoid valve, second interface of the second three-way solenoid valve is communicated with the oil return opening of described On-Line Monitor Device of Gas in Oil of Transformer, oil pump, the first three-way solenoid valve, the second three-way solenoid valve are all electrically connected with described controller, described first flange offers the first flange vent port, described first flange vent hole seal connects one first flange bleeder screw, described second flange offers the second flange vent port, described second flange vent hole seal connects one second flange bleeder screw.
2. the oil circuit evacuate air system of On-Line Monitor Device of Gas in Oil of Transformer as claimed in claim 1, it is characterized in that, the endpiece of described first flange is communicated with oil pump by one first oil strainer, and the endpiece of described second flange is communicated with the first interface of the second three-way solenoid valve by one second oil strainer; Described first oil strainer offers the first oily filtering exhaust hole, described first oily filtering exhaust hole is tightly connected one first oily filtering exhaust bolt; Described second oil strainer offers the second oily filtering exhaust hole, described second oily filtering exhaust hole is tightly connected one second oily filtering exhaust bolt.
3. the oil circuit evacuate air system of On-Line Monitor Device of Gas in Oil of Transformer as claimed in claim 2, is characterized in that having one first rubber gasket between the first oily filtering exhaust bolt and the first oil strainer; Between second oily filtering exhaust bolt and the second oil strainer, there is one second rubber gasket.
4. the oil circuit evacuate air system of On-Line Monitor Device of Gas in Oil of Transformer as claimed in claim 1, is characterized in that having one the 3rd rubber gasket between the first flange bleeder screw and the first flange; There is between second flange bleeder screw and the second flange one the 4th rubber gasket.
5. the oil circuit evacuate air system of On-Line Monitor Device of Gas in Oil of Transformer as claimed in claim 1, it is characterized in that, the endpiece of the first flange is communicated with the entrance point of oil pump, and the endpiece of oil pump is communicated with the first interface of the first three-way solenoid valve.
6. the oil circuit evacuate air system of On-Line Monitor Device of Gas in Oil of Transformer as claimed in claim 1, is characterized in that, the 3rd interface of the first three-way solenoid valve passes through the 3rd orifice of a steel pipe and the second three-way solenoid valve.
7., based on the oil circuit evacuate air method of the oil circuit evacuate air system of On-Line Monitor Device of Gas in Oil of Transformer according to claim 1, it is characterized in that, comprise the following steps:
A, the first flange bleeder screw unscrewed on the first flange, open the first valve of oil tank of transformer, until there is transformer oil to flow out from the first flange vent port, then tightens the first flange bleeder screw, then close the first valve;
B, the second flange bleeder screw unscrewed on the second flange, open the second valve of oil tank of transformer, until there is transformer oil to flow out from the second flange vent port, then tightens the second flange bleeder screw, then close the second valve;
C, unscrew the second flange bleeder screw, open the first valve, a controller oil-feed pump powers on, pump start, now, the first interface of the first three-way solenoid valve, 3rd interface is opened, second interface of the first three-way solenoid valve is closed, the first interface of the second three-way solenoid valve, 3rd interface is opened, second interface of the second three-way solenoid valve is closed, transformer oil is successively along oil tank of transformer, first flange, oil pump, the first interface of the first three-way solenoid valve, 3rd interface of the first three-way solenoid valve, 3rd interface of the second three-way solenoid valve, the first interface of the second three-way solenoid valve, second flange flowing, until the second flange vent port has transformer oil to flow out,
The first three-way solenoid valve given by D, controller, the second three-way solenoid valve powers on, second interface of the first three-way solenoid valve, the second interface of the second three-way solenoid valve are all opened, transformer oil flows, until the second flange vent port has transformer oil to flow out along the oil return opening of the oil-in of oil tank of transformer, the first flange, oil pump, the first three-way solenoid valve, On-Line Monitor Device of Gas in Oil of Transformer, On-Line Monitor Device of Gas in Oil of Transformer, the second three-way solenoid valve, the second flange successively;
First valve, oil pump, the first three-way solenoid valve, second three-way solenoid valve of E, closedown oil tank of transformer, and tighten the second flange bleeder screw.
8., based on the oil circuit evacuate air method of the oil circuit evacuate air system of On-Line Monitor Device of Gas in Oil of Transformer according to claim 2, it is characterized in that, comprise the following steps:
A, the first flange bleeder screw unscrewed on the first flange, open the first valve of oil tank of transformer, until there is transformer oil to flow out from the first flange vent port, then tightens the first flange bleeder screw, then close the first valve;
B, the second flange bleeder screw unscrewed on the second flange, open the second valve of oil tank of transformer, until there is transformer oil to flow out from the second flange vent port, then tightens the second flange bleeder screw, then close the second valve;
C, unscrew the first oily filtering exhaust bolt of the first oil strainer, open the first valve, until the first oily filtering exhaust hole has transformer oil to flow out, then tighten the first oily filtering exhaust bolt, then close the first valve;
D, unscrew the second oily filtering exhaust bolt of the second oil strainer, open the second valve, until the second oily filtering exhaust hole has transformer oil to flow out, then tighten the second oily filtering exhaust bolt, then close the second valve;
E, unscrew the second oily filtering exhaust bolt, open the first valve, a controller oil-feed pump powers on, pump start, now, the first interface of the first three-way solenoid valve, 3rd interface is opened, second interface of the first three-way solenoid valve is closed, the first interface of the second three-way solenoid valve, 3rd interface is opened, second interface of the second three-way solenoid valve is closed, transformer oil is successively along oil tank of transformer, first flange, first oil strainer, oil pump, the first interface of the first three-way solenoid valve, 3rd interface of the first three-way solenoid valve, 3rd interface of the second three-way solenoid valve, the first interface of the second three-way solenoid valve, second oil strainer, second flange flowing, until the second oily filtering exhaust hole has transformer oil to flow out,
The first three-way solenoid valve given by F, controller, the second three-way solenoid valve powers on, second interface of the first three-way solenoid valve, the second interface of the second three-way solenoid valve are all opened, transformer oil flows, until the second oily filtering exhaust hole has transformer oil to flow out along the oil return opening of the oil-in of oil tank of transformer, the first flange, the first oil strainer, oil pump, the first three-way solenoid valve, On-Line Monitor Device of Gas in Oil of Transformer, On-Line Monitor Device of Gas in Oil of Transformer, the second three-way solenoid valve, the second oil strainer, the second flange successively;
First valve, oil pump, the first three-way solenoid valve, second three-way solenoid valve of G, closedown oil tank of transformer, and tighten the second oily filtering exhaust bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310080632.9A CN103245529B (en) | 2013-03-13 | 2013-03-13 | Oil-way gas evacuation system and method for on-line monitoring device of gas in transformer oil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310080632.9A CN103245529B (en) | 2013-03-13 | 2013-03-13 | Oil-way gas evacuation system and method for on-line monitoring device of gas in transformer oil |
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| CN103245529A CN103245529A (en) | 2013-08-14 |
| CN103245529B true CN103245529B (en) | 2015-02-04 |
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