CN203164020U - Oil extraction device of high-voltage transformer - Google Patents

Abstract

The utility model discloses an oil extraction device of a high-voltage transformer. The oil extraction device comprises an oil drain pipe, an oil extraction valve and a three-way valve; the oil extraction valve is installed on the transformer; one end of the oil drain pipe is connected with the oil extraction valve, and the other end of the oil extraction pipe is connected with the three-way valve; the other two ways of the three-way valve are respectively connected with an oil outlet hole and an injector; and a valve core of the three-way valve is installed in the center of a three-way pipe, the valve core is a spherical valve which can rotate freely and is provided with a T-shaped hole, and a knob of the spherical valve is fixedly connected to the outside of the three-way valve. The oil extraction device has the beneficial effects that the switching between the oil drainage and the closed oil extraction can be conveniently realized only by adjusting the spherical valve in the oil extraction process, the oil extraction pipe is unnecessary to separated from the injector, and the phenomenon such as splaying and mixing and overflowing of gas can be avoided; and in addition, through the valve control, the oil extraction process can be optimized, the structure is simple, and convenience in operation can be realized.

Description

High-tension transformer get oily device

Technical field

The oil that the utility model relates in a kind of power transformer is engaged in detecting the sampling utility appliance; The oily device of getting that particularly relates to the above high-tension transformer of a kind of 10kV.

Background technology

The operation conditions of transformer high-voltage system can be effectively monitored in oil sample chromatogram, oily check, and make moist (local, integral body), overheated (low temperature, high temperature), discharge faults such as (local, electric arcs) are had sensitive indication; State Standard of the People's Republic of China＜oil for electric power (transformer oil, steam turbine oil) GB/T 7597-87 sampling methods〉" in once clearly propose: " sampling requirement is hermetically sealed; the connected mode of namely taking a sample is reliable; can not allow dissolved water in fuel divide and the gas loss; can not entrained air (must emptying sample connection in remaining air), must not produce bubble in the oil during operation." obtain the key link that qualified oil sample is oil check.By reasonably get oily mode guarantee work quality, efficient and get oil substation is brought minimizing of influence.

At present, transformer draws oil sample and gets oil for single tube, must have a people to control oily flow when getting oil, and another human syringe or wide-necked bottle are got oil; Because the pilot project difference that sampling is carried out is divided into wide-necked bottle again and directly gets oil and airtight two kinds of the oil of getting of syringe.The airtight oil require of getting is got oil with the oil sample in the syringe and air emptying more then earlier with the moistening and irrigating syringe of oil sample.There is following defective in existing method for extracting oil, when the irrigating syringe oil extraction, hose need be separated with syringe, sneaks into bubble in the detachment process easily and has characteristic gas to overflow; In addition, flow one people that a people controls oil gets oil, careless slightly will oil spout or spill and spatter; Rubber tube is in plug during syringe, can cause to spill to spatter and sneak into bubble, can't guarantee fully that institute gets oily quality, so experimental result can not reflect the ruuning situation of equipment really.

Summary of the invention

Technical problem to be solved in the utility model is, provides a kind of simple in structure, can not sneak into bubble when getting oil and spill the oily device of getting of the high-tension transformer that spatters.

The technical scheme that the utility model adopts is: a kind of high-tension transformer get oily device, comprise that draw-off pipe is got fuel tap and T-valve; The described fuel tap of getting is installed on the transformer; One end of draw-off pipe with get fuel tap and be connected, the other end of draw-off pipe is connected with T-valve; Described T-valve other two tunnel is connected with syringe with oil outlet respectively; The spool of described T-valve is installed in the center of three-way pipe, the spherical valve that have T shape hole of spool for rotating freely, and the knob fixed connection of described spherical valve is in the T-valve outside.

The material of described T-valve is plastics.

Described T-valve is the T type.

The beneficial effects of the utility model are: as long as adjust spherical valve, just can realize oil extraction, airtight conversion of getting oil in getting oily process, get oil pipe and need not to separate with syringe, realize avoiding spilling the phenomenon of spattering and sneaking into, overflowing gas; In addition, optimized by valve control and to have got oily flow process, this is simple in structure, and is easy to operate.

Description of drawings

Fig. 1 is the structural representation of getting oily device of the utility model high-tension transformer;

Fig. 2 is the T-valve cut-open view;

Fig. 3 is the cut-open view of T type ball valve;

Fig. 4 is the syringe sampling synoptic diagram.

Among the figure:

10. get fuel tap 20. draw-off pipes 30. T-valve 40. syringes 50. oil outlets 60. spools.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

As shown in Figure 1 to Figure 3, the utility model high-tension transformer get oily device, comprise that draw-off pipe 20 is got fuel tap 10 and T-valve 30; T-valve 30 is the T type, and material selection light weight, mechanicalness can be good, chemical stability strong, excellent optical performance, have the transparent plastic of excellent machinability; The described fuel tap 10 of getting is installed on the transformer; One end of draw-off pipe 20 with get fuel tap and be connected, the other end is connected with T-valve 30, described T-valve 30 other two tunnel is connected with syringe 40 with oil outlet 50 respectively; The spool 60 of described T-valve 30 is installed in the center of three-way pipe, and the spherical valve that have T shape hole of spool 60 for rotating freely, the knob fixed connection of described spherical valve are in the T-valve outside, and the fuel-displaced mode of convenient conversion realizes the airtight oil of getting.

Be that example describes with the airtight oil of getting now, as shown in Figure 4, T-valve is communicated with draw-off pipe and oil outlet, and the closed injection device washes connecting line; Flushing back rotary ball valve is communicated with draw-off pipe and syringe, and the sealing oil outlet washes syringe; Oil sample and air in the emptying syringe; Sampling; Take off syringe.Above-mentioned sample time is short, does not have to spill to spatter, and no bubble is residual in the oil sample.Because sampling accurately, oil affair test can reflect the ruuning situation of equipment really, for equipment safety operation provides reliable guarantee.

The utility model is selected oil extraction or the airtight oil of getting by adjusting the threephase switch of T-valve, has effectively prevented from spilling the phenomenon of spattering and sneaking into, overflowing gas; Shortened simultaneously and got the oil time, used this installation optimization to get oily program, strengthen and get the leakproofness of oily overall process.

It is worthy of note; protection scope of the present invention is not limited to above-mentioned instantiation mode, and according to basic fundamental design of the present invention, those of ordinary skills need not through creative work; the embodiment that can associate all belongs to protection scope of the present invention.

Claims (3)

1. A high-tension transformer get oily device, it is characterized in that, comprise that draw-off pipe (20) is got fuel tap (10) and T-valve (30); The described fuel tap (10) of getting is installed on the transformer; One end of draw-off pipe (20) with get fuel tap (10) and be connected, the other end of draw-off pipe (20) is connected with T-valve (30); Described T-valve (30) other two tunnel is connected with syringe (40) with oil outlet (50) respectively; The spool (60) of described T-valve (30) is installed in the center of three-way pipe, the spherical valve that have T shape hole of spool (60) for rotating freely, and the knob fixed connection of described spherical valve is in the T-valve outside.
2. High-tension transformer according to claim 1 get oily device, it is characterized in that the material of described T-valve (30) is plastics.
3. High-tension transformer according to claim 1 get oily device, it is characterized in that described T-valve (30) is the T type.

Images