CN213068735U - Accurate insulating oil transferring device - Google Patents

Accurate insulating oil transferring device Download PDF

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Publication number
CN213068735U
CN213068735U CN202021436184.3U CN202021436184U CN213068735U CN 213068735 U CN213068735 U CN 213068735U CN 202021436184 U CN202021436184 U CN 202021436184U CN 213068735 U CN213068735 U CN 213068735U
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China
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oil
needle tube
valve port
sampling needle
oil inlet
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CN202021436184.3U
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Chinese (zh)
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于鲜莉
刘志林
徐大鹏
李昂
李波
白洁
燕宝峰
王琼
刘琦
赵磊
谢明佐
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Inner Mongolia Electric Power Research Institute of Inner Mongolia Power Group Co Ltd
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Inner Mongolia Electric Power Research Institute of Inner Mongolia Power Group Co Ltd
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Abstract

The utility model relates to an accurate insulating oil device that shifts, it is including the tee bend flow divider that is used for connecting sampling needle tubing and test needle tubing and be used for fixed sampling needle tubing and test needle tubing and tee bend flow divider's strutting arrangement, tee bend flow divider is including being used for the oily valve port of income that links to each other through going into oily seal structure with sampling needle tubing, being used for and the test needle tubing through the oily valve port of the play that goes out oily seal structure links to each other and be used for discharging the drainage valve port of waste oil waste gas. This application gets rid of the air of sampling needle intraductal and tee bend flow divider when shifting oil appearance, has avoided the oil appearance that shifts into the test needle pipe in the sampling needle pipe to receive the pollution to realize the pollution-free transfer between the container of insulating oil, can improve experimental efficiency and experimental accuracy, impel the high level intelligence construction of oil laboratory.

Description

Accurate insulating oil transferring device
Technical Field
The application relates to the technical field of analysis and detection of transformer oil in an electric power system, in particular to an accurate insulating oil transfer device.
Background
In the stable operation period of the power system, analysis of dissolved gas in oil of insulating oil and analysis of gas content in oil are important means for fault diagnosis and prevention of power oil-filled equipment. People often use a full-automatic chromatographic analyzer to detect dissolved gas in insulating oil, and the instrument can improve the working efficiency and avoid human errors. However, the matched test needle tube has a different structure from the common needle tubes on the market, is expensive and difficult to popularize, so people usually adopt the common sampling needle tube to carry out closed sampling on the oil sample in the transformer, then transport the sampling needle tube to a laboratory, and then transfer the oil sample from the sampling needle tube to the special test needle tube for detection.
During the oil sample transferring process, the experimenter uses manual extraction, container conversion and other operations to violate the regulations of sampling standards, and the sample may be secondarily polluted. The conversion container reduces the reliability of the test result, and particularly has high requirements on the test accuracy for new oil which is not injected into equipment, new oil which is injected into the equipment but is not used and abnormal operating oil of the equipment, and small deviation in the process can cause opposite conclusions, thereby influencing equipment operation or equipment fault diagnosis and causing unnecessary economic loss.
SUMMERY OF THE UTILITY MODEL
In order to avoid the oil appearance among the sampling needle tubing to receive the pollution when transferring into the test needle tubing, this application provides an accurate insulating oil device that shifts.
First aspect, this application provides an accurate insulating oil device that shifts, adopts following technical scheme:
the three-way flow divider comprises an oil inlet valve port, an oil outlet valve port and a drainage valve port, wherein the oil inlet valve port is used for being connected with the sampling needle tube through an oil inlet sealing structure, the oil outlet valve port is used for being connected with the testing needle tube through an oil outlet sealing structure, and the drainage valve port is used for discharging waste oil and waste gas.
When the three-way flow divider is used, the sampling needle tube is connected with the oil inlet valve port, the testing needle tube is connected with the oil outlet valve port, and then the opening and closing directions of the three-way flow divider are rotated to communicate the oil inlet valve port and the oil outlet valve port. The push rod of the sampling needle tube is pushed lightly to inject the oil sample into the three-way flow divider through the oil inlet valve port, when the oil sample enters a certain amount, the switch of the three-way flow divider is rotated, and the flow passage of the three-way flow divider is changed into the communication between the drainage valve port and the oil inlet valve port. Pushing the push rod of the sampling needle tube to discharge the air and oil samples in the sampling needle tube and the flow channel through the discharge valve port. Repeating the steps for 2-3 times to achieve the purpose of removing air and waste oil in the sampling needle tube and the three-way diverter valve.
After the cleaning and washing steps are completed, the opening and closing direction of the three-way flow divider is repeatedly rotated to communicate the oil inlet valve port and the oil outlet valve port, the push rod of the sampling needle tube is pushed, and an oil sample is injected into the testing needle tube through the three-way flow divider. When the injected oil sample reaches the corresponding amount, the switch of the three-way flow divider is rotated to cut off the inlet end of the flow passage. Through adopting above-mentioned technical scheme, can get rid of the partial oil appearance that receives air pollution in the tee bend flow divider when carrying out the transfer of oil appearance to soak the tee bend flow divider, with the gas tightness that improves the tee bend flow divider, thereby avoided the oil appearance that transfers in the sampling needle tubing and test the needle tubing to receive the pollution.
Preferably, the supporting device comprises a supporting vertical frame, two cross beams arranged on the supporting vertical frame and a fixing mechanism used for fixing the cross beams on the supporting vertical frame, limiting sliding grooves are formed in the opposite side surfaces of the supporting vertical frame along the height direction, and one end of each cross beam is embedded into each sliding groove and connected with the corresponding sliding groove in a sliding mode.
By adopting the technical scheme, when the sampling needle tube and the testing needle tube are fixed with the beam, the beam can support the sampling needle tube and the testing needle tube. The beam slides up and down to adapt to the positions of the sampling needle tube and the testing needle tube, and when the beam is abutted against the sampling needle tube and the testing needle tube, the beam and the supporting stand are fixed by the fixing mechanism.
Preferably, the fixed establishment is including setting up in the crossbeam near the fixed external screw thread in support grudging post one end and the rotatory lantern ring on the crossbeam is located to the cover, be provided with in the rotatory lantern ring with the fixed internal thread of fixed external screw thread looks adaptation, the width of the part that the crossbeam is located spacing spout is greater than the notch width of spacing spout.
Through adopting above-mentioned technical scheme, the crossbeam slides from top to bottom in order to adapt to the position of sampling needle tubing and test needle tubing, when crossbeam and sampling needle tubing and test needle tubing looks butt, twists the rotatory lantern ring, and the rotatory lantern ring compresses tightly on supporting the grudging post and makes the crossbeam have the trend of deviating from spacing spout, and the part of spacing spout in spacing spout compresses tightly on the cell wall, produces and is enough to prevent the crossbeam along supporting the grudging post gliding frictional force from top to bottom.
Preferably, the cross beam is provided with a hoop for fixing the sampling needle tube or the testing needle tube.
By adopting the technical scheme, the beam slides up and down to adapt to the positions of the sampling needle tube and the testing needle tube, and when the beam is abutted against the sampling needle tube and the testing needle tube, the hoop is sleeved on the sampling needle tube or the testing needle tube to fix the sampling needle tube or the testing needle tube.
Preferably, the oil inlet sealing structure comprises an oil inlet internal thread arranged at the oil inlet valve port, and the oil inlet internal thread is matched with an oil inlet external thread arranged at the needle port of the sampling needle tube; the oil outlet sealing structure comprises an oil outlet internal thread arranged on the oil outlet valve port, and the oil outlet internal thread is matched with an oil outlet external thread arranged at the needle port of the test needle tube.
Through adopting above-mentioned technical scheme, the connection leakproofness between sampling needle tubing or test needle tubing and the tee bend flow divider can be strengthened to the screw-thread fit to reduce the risk that inside gas spills or outside air infiltration.
Preferably, the oil inlet sealing structure further comprises an oil inlet sealing sleeve for being sleeved at the joint of the oil inlet valve port and the sampling needle tube, and the oil outlet sealing structure further comprises an oil outlet sealing sleeve for being sleeved at the joint of the oil outlet valve port and the testing needle tube.
Preferably, the oil outlet sealing sleeve and the oil inlet sealing sleeve are made of polyurethane materials, two ends of the inner side surface of the oil inlet sealing sleeve are respectively used for abutting against the oil inlet valve port and the sampling needle tube and forming expansion type matching, and two ends of the inner side surface of the oil outlet sealing sleeve are respectively used for abutting against the oil outlet valve port and the testing needle tube and forming expansion type matching.
Through adopting above-mentioned technical scheme, the seal cover cup joints the junction between valve port and needle tubing, has further reduced the risk that inside gas spills or outside air infiltration.
Preferably, the drainage valve port is arranged upwards, and an oil containing box is arranged below the three-way flow divider.
Through adopting above-mentioned technical scheme, can make compare in the gas come-up that oil appearance is lighter and discharge from draining the valve port.
In a second aspect, the present application provides an accurate insulating oil transfer system, which adopts the following technical scheme:
the utility model provides an accurate insulating oil system that shifts, includes foretell accurate insulating oil device that shifts, and sampling needle tubing and test needle tubing, sampling needle tubing and income oil valve mouth threaded connection, test needle tubing and the valve port threaded connection that produces oil, staple bolt on two crossbeams cup joints respectively on sampling needle tubing and test needle tubing, the sealed cover that goes into oil is established in the junction of entering oil valve mouth and sampling needle tubing, the sealed cover that produces oil is established in the junction of valve port and test needle tubing.
By adopting the technical scheme, when the sampling needle tube is used, the sampling needle tube is connected with the oil inlet valve port, the testing needle tube is connected with the oil outlet valve port, and then the opening and closing direction of the three-way flow divider is rotated to communicate the oil inlet valve port and the oil outlet valve port. The push rod of the sampling needle tube is pushed lightly to inject the oil sample into the three-way flow divider through the oil inlet valve port, when the oil sample enters a certain amount, the switch of the three-way flow divider is rotated, and the flow passage of the three-way flow divider is changed into the communication between the drainage valve port and the oil inlet valve port. Pushing the push rod of the sampling needle tube to discharge the air and oil samples in the sampling needle tube and the flow channel through the discharge valve port. Repeating the steps for 2-3 times to achieve the purpose of removing air and waste oil in the sampling needle tube and the three-way diverter valve.
After the cleaning and washing steps are completed, the opening and closing direction of the three-way flow divider is repeatedly rotated to communicate the oil inlet valve port and the oil outlet valve port, the push rod of the sampling needle tube is pushed, and an oil sample is injected into the testing needle tube through the three-way flow divider. When the injected oil sample reaches the corresponding amount, the switch of the three-way flow divider is rotated to cut off the inlet end of the flow passage. Through adopting above-mentioned technical scheme, can get rid of the partial oil appearance that receives air pollution in the tee bend flow divider when carrying out the transfer of oil appearance to soak the tee bend flow divider, with the gas tightness that improves the tee bend flow divider, thereby avoided the oil appearance that transfers in the sampling needle tubing and test the needle tubing to receive the pollution.
In summary, the present application includes at least one of the following beneficial technical effects:
1. air in the sampling needle tube and the three-way flow divider is removed when the oil sample is transferred, so that the oil sample transferred into the testing needle tube in the sampling needle tube is prevented from being polluted, the pollution-free transfer among containers of insulating oil is realized, the experimental efficiency and the experimental accuracy can be improved, and the high-level intelligent construction of an oil laboratory is promoted;
2. the equipment structure mainly adopts the tee bend flow divider as the transfer media, and simple structure easily operates, and the gas tightness is strong.
Drawings
Fig. 1 is an overall schematic diagram of an accurate insulating oil transferring system in the embodiment of the present application.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is an overall schematic view of an accurate insulating oil transferring system in the embodiment of the present application.
Description of reference numerals:
1. sampling a needle tube;
2. testing the needle tube;
3. a support device;
31. a support base; 32. a support stand; 321. a limiting chute; 33. a cross beam; 34. a fixing mechanism; 341. rotating the collar; 35. an oil containing box; 36. hooping;
4. a three-way flow divider; 41. an oil inlet valve port; 42. an oil outlet valve port; 43. a drain valve port;
5. an oil inlet sealing structure; 51. oil inlet internal threads; 52. oil inlet external threads; 53. an oil inlet sealing sleeve;
6. an oil outlet sealing structure; 61. oil outlet internal threads; 62. an oil outlet external thread; 63. and (5) oil outlet sealing sleeves.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses accurate insulating oil system that shifts. Referring to fig. 1, the accurate insulating oil transferring system comprises a sampling needle tube 1 for extracting an insulating oil sample from a transformer, a testing needle tube 2 for accommodating the insulating oil sample to perform gas chromatography analysis, and an accurate insulating oil transferring device for transferring the oil sample in the sampling needle tube 1 into the testing needle tube 2.
Referring to fig. 1 and 2, the precise transfer insulating oil device comprises a three-way diverter valve 4 and a supporting device 3, wherein the supporting device 3 comprises a supporting base 31, a supporting stand 32 installed on the supporting base 31, two cross beams 33 arranged on the supporting stand 32, and a fixing mechanism 34 for fixing the cross beams 33 on the supporting stand 32. The support base 31 is formed in a disc shape to enhance stability in placement on the work table. The supporting stand 32 is a square bar perpendicular to the supporting base 31, and one end of the supporting stand close to the supporting base 31 is bolted to the supporting base 31. The opposite sides of the supporting vertical frame 32 have respectively opened a limit sliding groove 321 along the height direction of the supporting vertical frame 32, and in this embodiment, the limit sliding groove 321 is a stepped groove with a groove bottom width greater than the groove opening width. One end of the cross beam 33 is embedded into the limiting sliding groove 321 and connected with the limiting sliding groove 321 in a sliding manner, in this embodiment, the shape of the part of the cross beam 33 located in the limiting sliding groove 321 is matched with the shape of the limiting sliding groove 321, that is, the width of the part of the cross beam 33 located in the limiting sliding groove 321 is greater than or equal to the width of the notch of the limiting sliding groove 321, and the notch of the limiting sliding groove 321 prevents the cross beam 33 from being released from the limiting sliding groove 321.
Referring to fig. 1 and 2, the fixing mechanism 34 includes a fixing external thread disposed at one end of the cross beam 33 close to the supporting stand 32, and a rotating collar 341 sleeved on the cross beam 33, and a fixing internal thread adapted to the fixing external thread is disposed in the rotating collar 341. The beam 33 slides up and down to adapt to the positions of the sampling needle tube 1 and the testing needle tube 2, when the beam 33 is abutted against the sampling needle tube 1 and the testing needle tube 2, the rotating sleeve 341 is screwed, the rotating sleeve 341 is pressed on the supporting vertical frame 32, the beam 33 has the tendency of being separated from the limiting sliding groove 321, the part of the limiting sliding groove 321 in the limiting sliding groove 321 is pressed on the groove wall, and friction force enough for preventing the beam 33 from sliding up and down along the supporting vertical frame 32 is generated.
The three-way flow divider 4 comprises an oil inlet valve port 41 connected with the sampling needle tube 1 through the oil inlet sealing structure 5, an oil outlet valve port 42 connected with the testing needle tube 2 through the oil outlet sealing structure 6, and a discharge valve port 43 for discharging waste oil and waste gas.
The oil inlet sealing structure 5 comprises an oil inlet internal thread 51 arranged at the oil inlet valve port 41, an oil inlet external thread 52 arranged at the needle port of the sampling needle tube 1, and an oil inlet sealing sleeve 53 sleeved at the joint of the oil inlet valve port 41 and the sampling needle tube 1, wherein the oil inlet internal thread 51 is matched with the oil inlet external thread 52. The oil outlet sealing structure 6 comprises an oil outlet internal thread 61 arranged at the oil outlet valve port 42, an oil outlet external thread 62 arranged at the needle port of the test needle tube 2, and an oil outlet sealing sleeve 63 sleeved at the joint of the oil outlet valve port 42 and the test needle tube 2, wherein the oil outlet internal thread 61 is matched with the oil outlet external thread 62 of the test needle tube 2. The oil outlet sealing sleeve 63 and the oil inlet sealing sleeve 53 are made of polyurethane materials, two ends of the inner side surface of the oil inlet sealing sleeve 53 are respectively abutted to the oil inlet valve port 41 and the sampling needle tube 1 to form expansion fit, and two ends of the inner side surface of the oil outlet sealing sleeve 63 are respectively abutted to the oil outlet valve port 42 and the testing needle tube 2 to form expansion fit. The thread fit can strengthen the connection tightness between the sampling needle tube 1 or the testing needle tube 2 and the three-way diverter valve 4 so as to reduce the risk of internal gas leakage or external air infiltration. The seal cover is sleeved at the joint between the valve port and the needle tube, so that the risk of internal gas leakage or external air infiltration is further reduced.
The cross beam 33 is provided with a hoop 36 for fixing the sampling needle tube 1 or the testing needle tube 2, when the sampling needle tube 1 or the testing needle tube 2 is fixed with the three-way flow divider 4, the cross beam 33 is moved to enable the cross beam 33 to be abutted against the sampling needle tube 1 or the testing needle tube 2, at this time, the rotating lantern ring 341 is screwed, and then the hoop 36 is sleeved on the sampling needle tube 1 or the testing needle tube 2 to fix the sampling needle tube 1 or the testing needle tube 2.
The drainage valve port 43 is disposed upward, i.e., away from the supporting base 31, and the oil containing box 35 is disposed below the three-way flow dividing valve 4, and in this embodiment, the oil containing box 35 is fixed on the supporting base 31. When the drain port 43 communicates with the internal flow passage, gas lighter than oil floats up and is discharged from the drain port 43.
The implementation principle of the system for accurately transferring the insulating oil is as follows:
referring to fig. 1, when in use, the sampling needle tube 1 is connected to the oil inlet valve port 41, the testing needle tube 2 is connected to the oil outlet valve port 42, and then the three-way flow divider 4 is rotated to connect the oil inlet valve port 41 and the oil outlet valve port 42. The push rod of the sampling needle tube 1 is pushed lightly to inject the oil sample into the three-way diverter valve 4 through the oil inlet valve port 41, when the oil sample enters a certain amount, referring to fig. 3, the switch of the three-way diverter valve 4 is rotated, and the flow channel of the three-way diverter valve 4 is changed into the communication between the drainage valve port 43 and the oil inlet valve port 41. The push rod of the sampling needle tube 1 is pushed to discharge the air and oil samples in the sampling needle tube 1 and the flow passage through the discharge valve port 43. Repeating the steps for 2-3 times to achieve the purpose of removing air and waste oil in the sampling needle tube 1 and the three-way diverter valve 4.
After the above-mentioned cleaning and rinsing steps are completed, referring to fig. 1, the switching direction of the three-way diverter valve 4 is rotated repeatedly to communicate the oil inlet valve port 41 and the oil outlet valve port 42, and the push rod of the sampling needle tube 1 is pushed to inject the oil sample into the testing needle tube 2 through the three-way diverter valve 4. When the injected oil sample reaches a corresponding amount, the switch of the three-way flow divider 4 is rotated again to cut off the inlet end of the flow passage. In conclusion, when the oil sample is transferred, part of the oil sample polluted by the air in the three-way flow divider 4 can be removed, and the three-way flow divider 4 is soaked, so that the air tightness of the three-way flow divider 4 is improved, and the oil sample transferred into the testing needle tube 2 in the sampling needle tube 1 is prevented from being polluted.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The device for accurately transferring the insulating oil is characterized by comprising a three-way flow-dividing valve (4) and a supporting device (3), wherein the three-way flow-dividing valve (4) is used for connecting a sampling needle tube (1) and a testing needle tube (2), the supporting device is used for fixing the sampling needle tube (1), the testing needle tube (2) and the three-way flow-dividing valve (4), and the three-way flow-dividing valve (4) comprises an oil inlet valve port (41) connected with the sampling needle tube (1) through an oil inlet sealing structure (5), an oil outlet valve port (42) connected with the testing needle tube (2) through an oil outlet sealing structure (6), and a drainage valve port (43) used for discharging waste oil and waste gas.
2. The accurate insulating oil transferring device according to claim 1, wherein the supporting device (3) comprises a supporting vertical frame (32), two cross beams (33) arranged on the supporting vertical frame (32), and a fixing mechanism (34) for fixing the cross beams (33) on the supporting vertical frame (32), the opposite side surfaces of the supporting vertical frame (32) are provided with limiting sliding grooves (321) along the height direction, and one ends of the cross beams (33) are embedded into the limiting sliding grooves (321) and connected with the limiting sliding grooves (321) in a sliding manner.
3. The accurate insulating oil transferring device of claim 2, wherein the fixing mechanism (34) comprises a fixing external thread arranged at one end of the cross beam (33) close to the supporting stand (32) and a rotating sleeve ring (341) sleeved on the cross beam (33), a fixing internal thread matched with the fixing external thread is arranged in the rotating sleeve ring (341), and the width of the part of the cross beam (33) located in the limiting sliding groove (321) is larger than the width of the notch of the limiting sliding groove (321).
4. The precise insulating oil transferring device according to claim 2, characterized in that the cross beam (33) is provided with a hoop (36) for fixing the sampling needle tube (1) or the testing needle tube (2).
5. The precise insulating oil transferring device according to claim 1, wherein the oil inlet sealing structure (5) comprises an oil inlet internal thread (51) arranged at the oil inlet valve port (41), and the oil inlet internal thread (51) is matched with an oil inlet external thread (52) arranged at the needle port of the sampling needle tube (1); the oil outlet sealing structure (6) comprises an oil outlet internal thread (61) arranged on the oil outlet valve port (42), and the oil outlet internal thread (61) is matched with an oil outlet external thread (62) arranged at the needle port of the test needle tube (2).
6. The device for accurately transferring insulating oil according to claim 5, wherein the oil inlet sealing structure (5) further comprises an oil inlet sealing sleeve (53) for being sleeved at the joint of the oil inlet valve port (41) and the sampling needle tube (1), and the oil outlet sealing structure (6) further comprises an oil outlet sealing sleeve (63) for being sleeved at the joint of the oil outlet valve port (42) and the testing needle tube (2).
7. The device for accurately transferring insulating oil according to claim 6, wherein the oil outlet sealing sleeve (63) and the oil inlet sealing sleeve (53) are made of polyurethane materials, two ends of the inner side surface of the oil inlet sealing sleeve (53) are respectively used for abutting against the oil inlet valve port (41) and the sampling needle tube (1) and forming expansion fit, and two ends of the inner side surface of the oil outlet sealing sleeve (63) are respectively used for abutting against the oil outlet valve port (42) and the testing needle tube (2) and forming expansion fit.
8. The apparatus for accurately transferring insulating oil according to claim 1, wherein the discharge valve port (43) is disposed upward, and an oil containing box (35) is disposed below the three-way flow divider valve (4).
CN202021436184.3U 2020-07-20 2020-07-20 Accurate insulating oil transferring device Active CN213068735U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021436184.3U CN213068735U (en) 2020-07-20 2020-07-20 Accurate insulating oil transferring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021436184.3U CN213068735U (en) 2020-07-20 2020-07-20 Accurate insulating oil transferring device

Publications (1)

Publication Number Publication Date
CN213068735U true CN213068735U (en) 2021-04-27

Family

ID=75574533

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021436184.3U Active CN213068735U (en) 2020-07-20 2020-07-20 Accurate insulating oil transferring device

Country Status (1)

Country Link
CN (1) CN213068735U (en)

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