CN205785938U - A kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum - Google Patents
A kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum Download PDFInfo
- Publication number
- CN205785938U CN205785938U CN201620507119.2U CN201620507119U CN205785938U CN 205785938 U CN205785938 U CN 205785938U CN 201620507119 U CN201620507119 U CN 201620507119U CN 205785938 U CN205785938 U CN 205785938U
- Authority
- CN
- China
- Prior art keywords
- main transformer
- butterfly valve
- valve
- shoe cream
- cream room
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
This utility model relates to a kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum, including a main transformer butterfly valve adpting flange；Described main transformer butterfly valve adpting flange side is provided with a shoe cream room；The end face of shoe cream room is fixedly connected by welding with main transformer butterfly valve adpting flange；The other end of shoe cream room is provided with a sampling valve；Sampling valve is connected to a sampling injector；The lateral wall of shoe cream room is provided with a vacuumizing and exhausting valve；Vacuumizing and exhausting valve is connected to a manual suction pump through a micro vacuum table.A kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum that this utility model is proposed, it is provided that a kind of easy to install, good airproof performance, it is possible to carry out the oil sealed sampling device of the hermetically sealed sampling of vacuum on main transformer butterfly valve.
Description
Technical field
This utility model relates to a kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum.
Background technology
In recent years, along with the development of live detection technology, oil chromatography test becomes oil-filled equipments such as ensureing main transformer and runs the important detection means of safety.But the 35-110kV old master that part is in early days becomes due to the defect in design, and only draw oil sample a little in a bottom.And for the position of failure judgement point, oil gas testing crew is analyzed comparing sometimes for drawing oil sample at butterfly valve idle on main transformer.
During tradition sampling, owing to there is no special hermetically sealed oil sealed sampling device, the mode that with sampling container from main transformer butterfly valve at directly access is usually taken and carries out.Oil pressure active force within main transformer body is huge, and the oil pump capacity after butterfly valve is opened is very difficult to control, and when butterfly valve cuts out, whether its valve block closes to put in place and also cannot be carried out accurately judging.Draw oil sample every time and all can cause a large amount of leakages of insulating oil because butterfly valve cannot close close, make main transformer body oil level rapid decrease, the operation safety of serious threat to main transformer.It is an exposure under outside air state directly pour in sampling container because of oil sample simultaneously, this makes a large amount of loss of gas component dissolved in oil sample, and the foreign gas such as oxygen in air, carbon dioxide is dissolved in oil sample in a large number, causes the serious distortion drawn oil sample.
Therefore develop one and can control main transformer butterfly valve oil pump capacity, and can be suitably used for 35-110kV main transformer butterfly valve, to carry out the hermetically sealed special oil sealed sampling device drawn oil sample of vacuum the most necessary.
Summary of the invention
The purpose of this utility model is to provide a kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum, to overcome defect present in prior art.
For achieving the above object, the technical solution of the utility model is: the hermetically sealed oil sealed sampling device of main transformer butterfly valve Special vacuum, it is characterised in that include a main transformer butterfly valve adpting flange；Described main transformer butterfly valve adpting flange side is provided with a shoe cream room；The end face of described shoe cream room is fixedly connected by welding with described main transformer butterfly valve adpting flange；The other end of described shoe cream room is provided with a sampling valve；Described sampling valve is connected to a sampling injector；The lateral wall of described shoe cream room is provided with a vacuumizing and exhausting valve；Described vacuumizing and exhausting valve is connected to a manual suction pump through a micro vacuum table.
In an embodiment of the present invention, the middle part of described main transformer butterfly valve adpting flange offers one for the manhole mated with main transformer butterfly valve valve opening and closing；4 diagonal angles of described main transformer butterfly valve adpting flange all offer an oval stay bolt hole mated with described main transformer butterfly valve screw rod.
In an embodiment of the present invention, described shoe cream room other end is additionally provided with an oil level glass, and this oil level glass is arranged at the surface of described sampling valve.
In an embodiment of the present invention, described shoe cream room is a tubulose shoe cream room.
In an embodiment of the present invention, described vacuumizing and exhausting valve is a rustless steel three-way control valve；This rustless steel three-way control valve first end is connected with described shoe cream room, and the second end is connected with described micro vacuum table, and the 3rd end is connected with described manual suction pump.
In an embodiment of the present invention, described micro vacuum table is mechanical vacuum table.
In an embodiment of the present invention, described sampling valve is the internal hermetically sealed copper valve using ball to seal structure.
Compared to prior art, this utility model has the advantages that a kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum that this utility model is proposed uses external attached type to install, without main transformer butterfly valve is carried out any transformation, safety, versatility, good airproof performance, install and use very convenient.When being sampled at main transformer butterfly valve, can avoid cannot fastening a large amount of of the insulating oil caused because of butterfly valve during tradition sampling and leak；And because of the main transformer fault caused inside air entrance main transformer when butterfly valve is opened, it is possible to oil sample flow during sampling is accurately controlled.This device can really realize vacuum and seal sampling, can prevent the foreign gas in outside air from dissolving in oil sample, the dissolved gas loss in oil can be prevented again, thus ensure that taken oil sample is representative, it is effectively improved the accuracy of oil chromatography test data, it is adaptable to all 35-110kV main transformer butterfly valves draw oil sample use.
Accompanying drawing explanation
Fig. 1 is a kind of main transformer butterfly valve Special vacuum hermetically sealed oil sealed sampling device structural side view in this utility model.
Fig. 2 is a kind of main transformer butterfly valve Special vacuum hermetically sealed oil sealed sampling device structural representation in this utility model.
Fig. 3 is that in this utility model one embodiment, a kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum uses schematic diagram.
[label declaration]: 1-main transformer butterfly valve；2-butterfly valve core connecting rod；3-vacuumizing and exhausting valve；4-manual suction pump；5-micro vacuum table；6-oil level glass；7-sampling injector；8-samples valve；9-shoe cream room；10-butterfly valve valve block；11-main transformer butterfly valve flange；12-bolt hole.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the technical solution of the utility model is specifically described.
This utility model provides a kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum, as shown in Fig. 1 ~ 3: include main transformer butterfly valve adpting flange 11, shoe cream room 9, vacuumizing and exhausting valve 3, micro vacuum table 5, sampling valve 8, oil level glass 6.Main transformer butterfly valve adpting flange 11 side is provided with shoe cream room 9；The end face of shoe cream room 9 is fixedly connected by welding with main transformer butterfly valve adpting flange 11；The bottom, other end of shoe cream room 9 is provided with sampling valve 8；Sample valve 8 through hose connection to a sampling injector 7；The lateral wall of shoe cream room 9 is provided with vacuumizing and exhausting valve 3；Vacuumizing and exhausting valve 3 is through micro vacuum table 5, hose connection to manual suction pump 4 by another.
Further, in the present embodiment, main transformer butterfly valve adpting flange 11 uses steel plate thick for 5mm to make by general main transformer butterfly valve 1 specification, has the circular hole of a diameter 100mm, valve block activity space when being used for providing butterfly valve to open in the middle of flange.4 diagonal angles of adpting flange 11 are respectively arranged with long 25 mm, wide 10mm ellipse stay bolt hole 12, with guarantee different bolts hole away from butterfly valve on general, flange is welded with shoe cream room 9.
Further, in the present embodiment, shoe cream room 9 is the cylindrical shape of a diameter 100mm, and it uses 2mm Plate Welding to make, and cylindrical shape height is 60mm, and volume is about 350mL, is mainly used in blocking the outlet of main transformer butterfly valve, and can be to wait the quantitative storage area of offer that draws oil sample.With adpting flange 11 uniform welding bottom shoe cream room 9, being vacuumizing and exhausting valve 3 at its cylindrical outer wall, cylindrical shape center of top has an oil level glass 6, has a sampling valve 8 immediately below observation window 6.
Further, in the present embodiment, vacuumizing and exhausting valve 3 is rustless steel control valve, and its outlet of vacuumizing and exhausting valve 3 is a three-port structure, and three-port structure one end is connected to micro vacuum table 5, and the other end can be connected with manual suction pump 4.It carries out evacuation to shoe cream room inside before being mainly used in sampling, is discharged by air, and the air accumulated in shoe cream room after preventing butterfly valve from opening enters main transformer body, it is ensured that be in vacuum negative pressure condition inside shoe cream room before sampling all the time.Check whether butterfly valve valve block closes for air inlet after sampling to put in place.
Further, in the present embodiment, a diameter of 60mm of oil level glass 6, use thickness 5mm circle tempering embedding glass to make, the pressure that can bear is 2.5Mpa.It is arranged on shoe cream room 9 dead ahead, is mainly used in observing main transformer butterfly valve 1 opened and closed positions, and accurately judges that main transformer butterfly valve 1 is closed tight the most completely by the decline situation of oil level.
Further, in the present embodiment, micro vacuum table 5 is mechanical vacuum table, and range is 0 ~-0.1Mpa, is mainly used in indicating shoe cream room 9 internal vacuum.
Further, in the present embodiment, sampling valve 8 uses hermetically sealed copper valve, and it is internal uses ball to seal structure, can accurately control oil pump capacity size, and will not seepage when guaranteeing sampling.
Further, in the present embodiment, in order to allow those skilled in the art further appreciate that the device that this utility model is proposed, the using method below in conjunction with this device illustrates.
During use, pull down the outside shrouding of main transformer butterfly valve 1 to be sampled, at joint face, place sealing ring, the main transformer butterfly valve adpting flange bolt hole 12 of sampler is inserted in the screw rod of main transformer butterfly valve 1 four jiaos, with four nuts, its diagonal angle is fastened again, i.e. complete the installation of main transformer butterfly valve vacuum sampling device.
After installing, check device each several part good seal, with flexible pipe, manual suction pump 4 is connected on vacuumizing and exhausting valve 3 exit, then vacuumizing and exhausting valve 3 is opened, with manual suction pump 4 evacuation internal to sampler shoe cream room.Observe micro vacuum table 5 and indicate below arrival-0.08Mpa, after i.e. having reached vacuum state inside this device, close vacuumizing and exhausting valve 3.With spanner turn butterfly valve core connecting rod 2, slowly open main transformer butterfly valve 1 valve, in making whole shoe cream room 9, be full of oil.Sampling valve 8 oil-out flexible pipe is connected with 100mL sampling injector 7, slowly open sampling valve 8 and regulate fuel-displaced flow, utilize shoe cream room 9 internal oil pressure to be headed in 100mL sampling injector 7 by oil sample, this completes from the hermetically sealed process that draws oil sample of main transformer butterfly valve 1 vacuum.
After drawing oil sample, with spanner opposite direction turn butterfly valve core connecting rod 2, close main transformer butterfly valve 1, and at oil level glass 6, check whether butterfly valve valve block 10 closes put in place.It is then turned on vacuumizing and exhausting valve 3 and puts into air in shoe cream room 9, at sampling valve 8, shoe cream room 9 inner product oil is discharged, oil level whether normal decline is checked at oil level glass 6, as normal decline illustrates that butterfly valve valve block 10 is turned off putting in place, still having oil to emerge after opening such as vacuumizing and exhausting valve 3, illustrate that butterfly valve valve block 10 is not turned off putting in place, after can fastening vacuumizing and exhausting valve 3, turn butterfly valve core connecting rod 2 is adjusted again.After the long-pending oil in shoe cream room 9 drains, four nuts unclamped on main transformer butterfly valve adpting flange 11 can pull down whole sampler.
It is above preferred embodiment of the present utility model, all changes made according to technical solutions of the utility model, when produced function is without departing from the scope of technical solutions of the utility model, belong to protection domain of the present utility model.
Claims (7)
1. the main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum, it is characterised in that include a main transformer butterfly valve adpting flange；Described main transformer butterfly valve adpting flange side is provided with a shoe cream room；The end face of described shoe cream room is fixedly connected by welding with described main transformer butterfly valve adpting flange；The other end of described shoe cream room is provided with a sampling valve；Described sampling valve is connected to a sampling injector；The lateral wall of described shoe cream room is provided with a vacuumizing and exhausting valve；Described vacuumizing and exhausting valve is connected to a manual suction pump through a micro vacuum table.
A kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum the most according to claim 1, it is characterised in that the middle part of described main transformer butterfly valve adpting flange offers one for the manhole mated with main transformer butterfly valve valve opening and closing；4 diagonal angles of described main transformer butterfly valve adpting flange all offer an oval stay bolt hole mated with main transformer butterfly valve screw rod.
A kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum the most according to claim 1, it is characterised in that described shoe cream room other end is additionally provided with an oil level glass, and this oil level glass is arranged at the surface of described sampling valve.
A kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum the most according to claim 1, it is characterised in that described shoe cream room is a tubulose shoe cream room.
A kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum the most according to claim 1, it is characterised in that described vacuumizing and exhausting valve is a rustless steel three-way control valve；This rustless steel three-way control valve first end is connected with described shoe cream room, and the second end is connected with described micro vacuum table, and the 3rd end is connected with described manual suction pump.
A kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum the most according to claim 1, it is characterised in that described micro vacuum table is mechanical vacuum table.
A kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum the most according to claim 1, it is characterised in that described sampling valve is the internal hermetically sealed copper valve using ball to seal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620507119.2U CN205785938U (en) | 2016-05-30 | 2016-05-30 | A kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620507119.2U CN205785938U (en) | 2016-05-30 | 2016-05-30 | A kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205785938U true CN205785938U (en) | 2016-12-07 |
Family
ID=59979707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620507119.2U Expired - Fee Related CN205785938U (en) | 2016-05-30 | 2016-05-30 | A kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205785938U (en) |
-
2016
- 2016-05-30 CN CN201620507119.2U patent/CN205785938U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103091052B (en) | Normal temperature vacuum leak-detection system used for spacecraft part assembly | |
| CN213022171U (en) | Device for valve detection | |
| CN110907102B (en) | Valve detection device | |
| CN205785938U (en) | A kind of main transformer hermetically sealed oil sealed sampling device of butterfly valve Special vacuum | |
| CN207934749U (en) | A kind of double bolloon inflatable gas-tight door | |
| WO2016058507A1 (en) | Device for connecting air-tight test vehicle body and air-tight test bench case | |
| CN111271482B (en) | Natural gas line sampling valve | |
| CN107449636A (en) | A kind of hermetically sealed method that draws oil sample of main transformer butterfly valve Special vacuum | |
| CN215893913U (en) | Air tightness detection device for civil air defense door | |
| CN215762575U (en) | Test bench for testing hydraulic brake valve set | |
| CN112362339B (en) | Life testing device for low-temperature valve with air filling port | |
| CN106097862B (en) | A kind of coal and rock under adjustable artesian water pressure stabilization function infiltrates simple experimental device | |
| CN108956026A (en) | Overhead welding air tightness detection system | |
| CN105179718B (en) | A kind of valve | |
| CN104458163A (en) | Valve leakage detection device and detection method thereof | |
| CN203164019U (en) | Oil-way gas emptying system of gas online monitoring device in transformer oil | |
| CN203422281U (en) | Positioning clamp device for hydrostatic test after welding of hubbed flange and pipe | |
| CN206248284U (en) | A kind of crossover sub device for detecting sealability | |
| CN105909034B (en) | Air hermetic preserved contact net tubular steel post and preparation method thereof | |
| CN212158969U (en) | Inner leakage detection device of hydraulic blowout preventer | |
| CN217403716U (en) | Engine body hydrostatic test device | |
| CN218671645U (en) | Pressure vessel pressure release discharge system | |
| CN216978534U (en) | Industrial waste gas detection sampling device | |
| CN219435556U (en) | Safety shell atmosphere sampling function verification device after accident | |
| CN109520683A (en) | A kind of PE diffusion valve gas tightness testing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20170530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |