CN101086922A - A vacuum balance method of vacuum pressure dipping technology and its device - Google Patents
A vacuum balance method of vacuum pressure dipping technology and its device Download PDFInfo
- Publication number
- CN101086922A CN101086922A CN 200710039693 CN200710039693A CN101086922A CN 101086922 A CN101086922 A CN 101086922A CN 200710039693 CN200710039693 CN 200710039693 CN 200710039693 A CN200710039693 A CN 200710039693A CN 101086922 A CN101086922 A CN 101086922A
- Authority
- CN
- China
- Prior art keywords
- vacuum
- impregnating vessel
- vessel
- vacuum pressure
- impregnating
- 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.)
- Pending
Links
Images
Landscapes
- Manufacture Of Motors, Generators (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention is a vacuum balancing method of vacuum pressure dipping craftwork and device, it relates to an improved vacuum pressure dipping craftwork, at the same time, it relates to a device of the craftwork. It can be used in preparation of insulating structure of electromotor winding. A kind of vacuum balancing method of vacuum pressure dipping craftwork is adding a storing balancing framework. A kind of vacuum pressure dipping device which aims at said craftwork includes impregnating vessel, storing vessel, vacuum set and air compressor, bottom of said impregnating vessel is connected with bottom of storing vessel via painting tube, the painting tube possesses two-way painting valve, top of the impregnating vessel is connected with vacuum set and air compressor via tube, thereinto, top of the impregnating vessel is connected with a balancing storing framework via connecting tube. With characters of VPI equipment closed pump, system of baking is eliminated; winding iron core is directly loaded into the impregnating vessel for vacuum process.
Description
Technical field
Vacuum balance method in a kind of technique of vacuum pressure for dipping electrical of the present invention and device thereof relate to a kind of improved technique of vacuum pressure for dipping electrical, also relate to a kind of device that is applied to this technology simultaneously.Can be widely used in the manufacturing of motor winding insulation structure.
Background technology
Motor (generator) becomes the visual plant that industrial power is provided as the mode of power conversion the best, has occupied the critical positions of energy resource consumption.And the raising of electric efficiency is the important goal of the pursuit of electromechanics trade technological progress.The efficient total water of domestic middle-size and small-size low voltage motor is straight and even near international level at present, and existing suitable quantity is according to North America EPACP standard production and supply the overseas market.In recent years, promoting the high pressure electricity consumption is that energy-saving material-saving has been made outstanding contributions, and high-voltage motor replaces the main flow that low voltage motor becomes 100KW-1000KW (conventional low) capacity.
But the manufacturing of high-voltage motor winding insulation structure remains at present and hinders the important step that motor increases capacity, reduces volume, raises the efficiency, be embodied in the insulating barrier quality de-stabilising effect reducing of thickness of insulating layer.With 6000V level motor is example, and external advanced its thickness of insulation system is 0.85-1.2mm, and domestic present denominator is 1.8mm, and 1.5mm still can not effectively promote.Import equipment that indivedual producers introduce with high cost and material trial-production 1.0-1.3mm structure are yet in digestion, and in case success, the production domesticization of material is still the key that product realizes that the marketization is promoted.Over past ten years, the high-voltage motor industry is popularized vacuum pressure impregnation (calling VPI in the following text) technology in an all-round way, but state's impregnated resin inside sawdust and VPI technology do not match and causes this technology to fail to reach the specification requirement of expection.Only solve production efficiency problem and failed to reach the purpose of production technology progress.
If adopt the import impregnating resin, material cost and operating cost will increase 200%-350%, even problem is domestic alternative similar impregnating resin that had, price can be not lower than import, and this will bring electromechanics trade with expensive new problem of reorientating in market.
Because state's impregnated resin inside sawdust can produce a large amount of styrene gas under vacuum action at present, causes motor windings to suck a large amount of gases before as yet not by the resin submergence, influenced the saturation that resin absorbs, cause the winding insulation degree inhomogeneous.
Adopt VPI technology to use the mica tape of gel content more than 20% at present so Here it is on the contrary than the safer main cause of mica tape meeting of gel content below 10%.
According to domestic each tame high-voltage motor manufacturer technique of vacuum pressure for dipping electrical standard, behind the defeated lacquer of impregnation tank, pressure can rise gradually with the styrene gasification, for controlled pressure, does not generally allow to surpass 2000Pa, the unit that should rerun compensation vacuum.Above-mentioned in fact standard is only effective to using volatile matter to be not more than 5% import resin.Because a large amount of styrene gas can cause damage to the lubricated of pump very soon, thereby make the vacuum of preserving moisture behind the defeated lacquer lose meaning.Test shows that according to defeated lacquer amount what and speed, after defeated lacquer was finished, a jar interior actual pressure has reached 40000-80000Pa not to be waited.
Advance shown in the lacquer craftwork schematic diagram as the vacuum of Fig. 2 impregnating vessel, finishing resin in motor windings continuous variation of straight line portion pressure between 5000Pa-40000Pa that breakdown strength is had relatively high expectations over the ground sucks, the difference of it and initial vacuum 30-130Pa has just realized the displacement of air and styrene gas before sucking, just the difference of replacement amount has been left resin for and has been compensated, so near the motor windings of high position, its dipping effect is poor more, so its dielectric strength is fragile relatively more.
Summary of the invention
One of the object of the invention provides the vacuum balance method in a kind of technique of vacuum pressure for dipping electrical, can effectively control the vacuum degree in the dipping process.
Two of the object of the invention provides the device that is applied in the above-mentioned technological process.
The object of the invention realizes by following technical proposal: the vacuum balance method in a kind of technique of vacuum pressure for dipping electrical increases gas storage balanced controls in the technique of vacuum pressure for dipping electrical process.These gas storage balanced controls are the air accumulator of an air accumulator or two and two above serial or parallel connections, the container that also can have the vacuum balanced action for other, be communicated with impregnating vessel by valve, the vacuum degree that is used for the balance impregnating vessel is vaporized to the adverse effect of dipping lacquer with the styrene of eliminating in the impregnating vessel.
A kind of technique of vacuum pressure for dipping electrical comprises following processing step:
(1) the workpiece impregnating vessel of packing into, impregnating vessel is communicated with through a communicating valve with the gas storage balanced controls; Pressure changed decision when the valve event of gas storage balanced controls coated with lacquer according to impregnating vessel is defeated, can manually also can realize that PLC controls automatically by the vacuum gauge output signal.
(2) open the vacuum unit, impregnating vessel and gas storage balanced controls are evacuated, kept then 2-5 hour;
(3) close communicating valve, open defeated lacquer valve, when impregnating vessel is failed lacquer until submergence workpiece 10cm, end by transmission pipe;
(4) open communicating valve, make impregnating vessel pressure keep 2000-5000Pa, and kept vacuum 1-3 hour;
(5) vacuum of releasing impregnating vessel and gas storage balanced controls;
(6) close communicating valve, open air compressor unit, after impregnating vessel is pressurized to 0.5MPa-0.6MPa, pressurize 3-5 hour, open pressure-relief valve, discharge the pressure of impregnating vessel.
The vacuum degree that adopts styrene vaporization in the air accumulator balance dipping lacquer process and consume has following advantage: one, need not to adopt the vacuum unit to vacuumize once more, avoid the vacuum unit to be damaged by styrene gas; Two, adopt the dielectric strength of the insulation winding that this process makes even; Three, easy to operation, the production efficiency height.
Vacuum pressure impregnation device at above-mentioned technology, comprise impregnating vessel, the storage paint can, vacuum unit and air compressor unit, the bottom of impregnating vessel is communicated with by transmission pipe with the bottom of storage paint can, transmission pipe is provided with two-way defeated lacquer valve, transmission pipe can be transported to impregnating vessel with the lacquer in the storage paint can, also the lacquer in the impregnating vessel can be carried back the storage paint can, defeated lacquer valve is used to control the opening and closing of transmission pipe, the top of impregnating vessel is communicated with vacuum unit and air compressor unit by pipeline respectively, the top of impregnating vessel was communicated with through valve with a balance gas storage mechanism through communicating pipe, do not sucked with the impregnating resin of guaranteeing impregnating vessel, and on this communicating pipe, communicating valve is set by the negative pressure of air accumulator; Impregnating vessel is provided with Pressure gauge, is used to measure the pressure in the impregnating vessel.
On the technique scheme basis, described balance gas storage mechanism is that one or more air accumulator constitutes.Purpose is to utilize the continuous pressure that rises of initial vacuum pressure (30-130Pa) balance impregnation tank of air accumulator.
On the technique scheme basis, when air accumulator is two or two when above, air accumulator series connection back is communicated with transmission pipe.
On the technique scheme basis,, be communicated with transmission pipe after each air accumulator parallel connection when air accumulator is two or two when above.Each air accumulator wherein all is provided with valve and controls, and according to the Pressure gauge data presented, opens one of them or several valves, and one or several canisters are communicated with impregnating vessel.
On the technique scheme basis, the volume of described air accumulator is 1-1.5 a times of impregnating vessel, and convenience makes it to remain in the appropriate vacuum degree scope of impregnation technology needs to the control of impregnating vessel internal pressure.
On the technique scheme basis, the bearing capacity of described air accumulator is 30Pa-300000Pa, and meets the relevant criterion of pressure vessel.
On the technique scheme basis, described impregnating vessel is provided with release exhaust apparatus and safety device.
The present invention is exactly by improving VPI technology, utilize the widely used now impregnating resin that styrene reaches 30%-50% that contains, give full play to its high fluidity, high stability and superior dielectric properties, evaded the loss that styrene gas causes vacuum degree, improved large volume motor stator high-pressure impregnation ability, for the improvement of insulation system provides the technology assurance.This method is utilized old plant modification, and expense is not high, and is easy and simple to handle, does not influence production efficiency.The advantage of vacuum pressure impregnation device is: one, simple in structure, compactness is saved the production space; Two, easy to use, be convenient to use.
Description of drawings
Fig. 1 is the embodiment process chart
Fig. 2 advances the lacquer craftwork schematic diagram for the vacuum of impregnating vessel
Fig. 3 is the structural representation of vacuum pressure impregnation device
The structural representation of the vacuum pressure impregnation device of a plurality of air accumulator series connection of Fig. 4
Code description among the figure
1,1 '-impregnating vessel, 11-Pressure gauge 12-advance lacquer mouthfuls 13-return lacquer mouthful
2,2 '-storage paint can 3,3 '-vacuum unit 4,4 '-air compressor unit
5-transmission pipe 51-two-way defeated lacquer valve
6,7-pipeline 61,71-valve
8-communicating pipe 81-communicating valve
9-air accumulator, 10-workpiece
Embodiment
Vacuum balance method in the technique of vacuum pressure for dipping electrical of the present invention is to increase gas storage balanced controls in the technique of vacuum pressure for dipping electrical process.These gas storage balanced controls can be shown in the structural representation of Fig. 3 vacuum pressure impregnation device, and the gas storage balanced controls in the present embodiment are that an air accumulator 9 is communicated with impregnating vessel 1 through communicating valve 81.Perhaps as the structural representation of the vacuum pressure impregnation device of a plurality of air accumulators of Fig. 4 series connection, balanced controls are the version of a plurality of air accumulators series connection.
Embodiment one
Among Fig. 3, the vacuum pressure impregnation device comprises: impregnating vessel 1, storage paint can 2, vacuum unit 3 and air compressor unit 4, the bottom of impregnating vessel 1 is communicated with by transmission pipe 5 with the bottom of storage paint can 2, transmission pipe 5 is provided with two-way defeated lacquer valve 51, transmission pipe 5 can be transported to impregnating vessel 1 with the lacquer of 2 li of storage paint cans, also the lacquer of 1 li of impregnating vessel can be carried back storage paint can 2, two-way defeated lacquer valve 51 is used to control the opening and closing of transmission pipe 5, the top of impregnating vessel 1 is respectively by pipeline 6,7 are communicated with vacuum unit 3 and air compressor unit 4, pipeline 6, valve 61 is set respectively on 7,71, the top of impregnating vessel 1 was communicated with an air accumulator 9 through communicating pipe 8, do not sucked with the impregnating resin of guaranteeing impregnating vessel 1, and on this communicating pipe 8, communicating valve 81 is set by the negative pressure of air accumulator 9; Impregnating vessel 1 is provided with Pressure gauge 11, is used to measure the pressure in the impregnating vessel 1.
Shown in Fig. 1 present embodiment process chart, a kind of technique of vacuum pressure for dipping electrical comprises following processing step:
(1) low resin mica tape (gel content 6%, the quantitative 150g/m of mica
2) the wrapped artificial line rod workpiece 10 main jar of Φ 1000 horizontal vacuum pressure impregnating vessels 1 of packing into, communicating valve 81 is communicated with impregnating vessels 1 and auxilliary tank storage gas tanks 9, and promptly major-minor jar is communicated with; Pressure changed the decision valve event when communicating valve 81 was failed lacquer according to impregnating vessel 1, can be manual, also can realize that PLC controls automatically by the vacuum output signal.
(2) open vacuum unit 3, impregnating vessel 1 and air accumulator 9 are evacuated epoxy type vacuum pressure impregnation resin (styrene-content 35%-40%, viscosity 30s), initial vacuum 90-150Pa, the vacuum of preserving moisture 2-5 hour;
(3) close communicating valve 81, main jar of defeated lacquer promptly opened two-way defeated lacquer valve 51, and storage paint can 2, ends when submergence workpiece 10 about 10cm to impregnating vessel 1 defeated lacquer by transmission pipe 5;
(4) open communicating valve 81, the vacuum degree of utilizing the vacuum of air accumulator 9 to come balance impregnating vessel 1 makes impregnating vessel 1 pressure remain on 2000Pa-5000Pa, and keeps vacuum 1-3 hour, and present embodiment kept vacuum 2 hours;
(5) vacuum of releasing impregnating vessel 1 and air accumulator 9, input compressed air;
(6) pressure is closed communicating valve 81 to 20000-25000Pa, and unlatching air compressor unit 4 is after impregnating vessel 1 is pressurized to 60000Pa, pressurize 3-5 hour, open pressure-relief valve, discharge the pressure of impregnating vessel 1, workpiece 10 is taken out from impregnating vessel 1, simultaneously, air accumulator 9 relief and emptyings;
Can repeat the pressurized operation process as required.
(7) will put into baking oven after workpiece 10 drip-dry, 150 ℃ were dried by the fire 8 hours.
The vacuum degree that adopts styrene vaporization in the air accumulator balance dipping lacquer process and consume has following advantage: one, need not to adopt the vacuum unit to vacuumize once more, avoid the vacuum unit to be damaged by styrene gas; Two, adopt the dielectric strength of the insulation winding that this process makes even; Three, easy to operation, the production efficiency height.
Embodiment two
In the present embodiment, as shown in Figure 4, balanced controls are that four air accumulators, 91,92,93,94 series connection backs are communicated with impregnating vessel 1 '.
In the present embodiment, the volume of described air accumulator is 1-1.5 a times of impregnating vessel 1 ', with the control of convenience to impregnating vessel 1 ' internal pressure, makes it to remain in the appropriate vacuum degree scope of impregnation technology needs.
Impregnating vessel 1 ' also can be provided with the measuring tank (not shown) with storage paint can 2 ' in this device; Impregnating vessel 1 ' bottom can connect a finished product storage tank (not shown).
In the present embodiment, the bearing capacity of described air accumulator is 30Pa-300000Pa, and meets the relevant criterion of pressure vessel.Purpose is to utilize initial vacuum pressure (30-130Pa) the balance impregnation tank 1 continuous pressure that rises of air accumulator 9.
In the present embodiment, described impregnating vessel 1 ' is provided with release exhaust apparatus and safety device.Another group line rod uses same mica tape wrapped as a comparison, handles traditionally, relatively the electric property of two groups of line rods.
Certainly air accumulator is two or two when above, also can be to be communicated with transmission pipe after each air accumulator parallel connection.Each air accumulator wherein all is provided with valve and controls, and according to the Pressure gauge data presented, opens one of them or several valves, and one or several canisters are communicated with impregnating vessel.
Result and discussion
In the experiment on two groups of line rods differing heights in the dipping paint bath, in the defeated lacquer process, the liquid level of impregnating varnish progressively increases from bottom to top, as shown in Figure 2, will be immersed in fully below the impregnating varnish liquid level prior to the B group line rod of higher position at the A of lower position group line rod.By defeated lacquer speed of manual control and air accumulator communicating valve, the A group line rod that makes lower position in the lacquer that submerges the time pressure in the jar below 5000Pa; The pressure in the jar is at 40000Pa in the lacquer that submerges the time for the B of higher position group line rod, and other processing step is identical.
Under the defeated lacquer state of 5000Pa and 40000Pa, two groups of simulation winding bar levels are immersed resin respectively, kept wet vacuum 2 hours.Remove vacuum, be forced into 0.6MPa, keep-uped pressure 3 hours, pressure relief goes out jar.Advance 150 ℃ of bakings of baking oven 9 hours, stop.
Test is the electric property of two line rods relatively, checking difference.
To have better electric property level: A group normality dielectric loss, dielectric loss increment and hot dielectric loss than the line rod of dipping lacquer in B group 40000Pa atmosphere all low than the B group for the line rod of dipping lacquer in A group 5000Pa atmosphere; A group puncture voltage mean value is higher than the B group.
Two groups of line rod dielectric property test charts
| Excellent number of line | Normality dielectric loss (%) | Hot dielectric loss (%) | Disruptive field intensity (MV/m) | |||||||
| 0.2Un 0.4Un 0.6Un 0.8Un 1.0Un 1.2Un tan δ (0.6-0.2) | ||||||||||
| A organizes 5000pa | 28 # | 0.72 | 0.79 | 1.10 | 1.38 | 1.46 | 2.56 | 0.38 | 2.48 | 36.0 |
| 49 # | 0.86 | 0.93 | 1.20 | 3.06 | 5.30 | 6.65 | 0.34 | 2.89 | 31.8 | |
| 59 # | 0.83 | 0.89 | 1.19 | 2.64 | 4.54 | 4.84 | 0.36 | 2.61 | 33.9 | |
| B organizes 40000pa | 80 # | 0.86 | 1.30 | 3.90 | 5.40 | 5.80 | 5.82 | 3.04 | 5.28 | 25.0 |
| 06 # | 0.74 | 1.06 | 1.76 | 2.46 | 3.06 | 3.10 | 1.02 | 3.21 | 22.9 | |
| 55 # | 1.13 | 1.23 | 2.23 | 4.23 | 5.53 | 6.03 | 1.10 | 3.51 | 23.1 | |
Claims (8)
1, the vacuum balance method in a kind of technique of vacuum pressure for dipping electrical increases gas storage balanced controls in the technique of vacuum pressure for dipping electrical process.
2, a kind of technique of vacuum pressure for dipping electrical that utilizes vacuum balance method according to claim 1 comprises following processing step:
(1) the workpiece impregnating vessel of packing into, impregnating vessel is communicated with through a communicating valve with the gas storage balanced controls;
(2) open the vacuum unit, impregnating vessel and gas storage balanced controls are evacuated, kept then 2-5 hour;
(3) close communicating valve, open defeated lacquer valve, when impregnating vessel is failed lacquer until submergence workpiece 10cm, end by transmission pipe;
(4) open communicating valve, make impregnating vessel pressure keep 2000-5000Pa, and kept vacuum 1-3 hour;
(5) vacuum of releasing impregnating vessel and gas storage balanced controls;
(6) close communicating valve, open air compressor unit, after impregnating vessel is pressurized to 0.5MPa-0.6MPa, pressurize 3-5 hour, open pressure-relief valve, discharge the pressure of impregnating vessel.
3, at the described a kind of vacuum pressure impregnation device of claim 2, comprise impregnating vessel, storage paint can, vacuum unit and air compressor unit, the bottom of impregnating vessel is communicated with by transmission pipe with the bottom of storage paint can, transmission pipe is provided with two-way defeated lacquer valve, the top of impregnating vessel is communicated with vacuum unit and air compressor unit respectively by pipeline, it is characterized in that the top of impregnating vessel was communicated with through communicating valve with a balance gas storage mechanism through communicating pipe.
4, a kind of vacuum pressure impregnation device according to claim 3 is characterized in that: described balance gas storage mechanism is that one or more air accumulator constitutes.
5, a kind of vacuum pressure impregnation device according to claim 4 is characterized in that: when air accumulator is two or two when above, air accumulator series connection back is communicated with transmission pipe.
6, a kind of vacuum pressure impregnation device according to claim 4 is characterized in that: when air accumulator is two or two when above, be communicated with transmission pipe after each air accumulator parallel connection.
7, a kind of vacuum pressure impregnation device according to claim 4 is characterized in that: the volume of described air accumulator is 1-1.5 a times of impregnating vessel.
8, a kind of vacuum pressure impregnation device according to claim 4, it is characterized in that: described air accumulator is a pressure vessel, its bearing capacity is 30Pa-300000Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710039693 CN101086922A (en) | 2007-04-20 | 2007-04-20 | A vacuum balance method of vacuum pressure dipping technology and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710039693 CN101086922A (en) | 2007-04-20 | 2007-04-20 | A vacuum balance method of vacuum pressure dipping technology and its device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101086922A true CN101086922A (en) | 2007-12-12 |
Family
ID=38937810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710039693 Pending CN101086922A (en) | 2007-04-20 | 2007-04-20 | A vacuum balance method of vacuum pressure dipping technology and its device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101086922A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179341A (en) * | 2011-04-25 | 2011-09-14 | 张家港市佳龙真空浸漆设备制造厂 | Vacuum pressure paint dipping device |
| CN101577176B (en) * | 2009-03-18 | 2012-03-21 | 山东电力设备有限公司 | Process and equipment for oil impregantion of transformer body |
| CN102497069A (en) * | 2011-12-20 | 2012-06-13 | 重庆赛力盟电机有限责任公司 | Vacuum pressure impregnating insulating method |
| CN102553805A (en) * | 2012-03-05 | 2012-07-11 | 株洲时代新材料科技股份有限公司 | Vacuum pressure impregnation equipment with low-energy electron beam device and vacuum pressure impregnation method |
| CN102810953A (en) * | 2011-06-02 | 2012-12-05 | 张家港市佳龙真空浸漆设备制造厂 | Vacuum pressure paint dipping device for improving vacuum system |
| CN103611660A (en) * | 2013-12-05 | 2014-03-05 | 南车洛阳机车有限公司 | Decontamination vacuum lacquer impregnation tank and method |
| CN104103380A (en) * | 2014-08-06 | 2014-10-15 | 安福县海能实业股份有限公司 | Insulated wire extrusion vacuumizing device |
| CN106040527A (en) * | 2016-05-30 | 2016-10-26 | 株洲南车机电科技有限公司 | Nitrogen filling vacuum pressure impregnation equipment and method |
| CN114937555A (en) * | 2022-05-12 | 2022-08-23 | 合肥综合性国家科学中心能源研究院(安徽省能源实验室) | Constant-temperature constant-pressure vacuum epoxy impregnation equipment with controllable impregnation rate and use method |
| US20220360153A1 (en) * | 2021-05-10 | 2022-11-10 | The Timken Company | Vacuum pressure impregnation method for insulation system |
| CN116545192A (en) * | 2023-07-05 | 2023-08-04 | 张家港市双成电工设备有限公司 | Vacuum pressure paint dipping equipment based on cloud platform |
-
2007
- 2007-04-20 CN CN 200710039693 patent/CN101086922A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101577176B (en) * | 2009-03-18 | 2012-03-21 | 山东电力设备有限公司 | Process and equipment for oil impregantion of transformer body |
| CN102179341A (en) * | 2011-04-25 | 2011-09-14 | 张家港市佳龙真空浸漆设备制造厂 | Vacuum pressure paint dipping device |
| CN102810953A (en) * | 2011-06-02 | 2012-12-05 | 张家港市佳龙真空浸漆设备制造厂 | Vacuum pressure paint dipping device for improving vacuum system |
| CN102497069A (en) * | 2011-12-20 | 2012-06-13 | 重庆赛力盟电机有限责任公司 | Vacuum pressure impregnating insulating method |
| CN102553805A (en) * | 2012-03-05 | 2012-07-11 | 株洲时代新材料科技股份有限公司 | Vacuum pressure impregnation equipment with low-energy electron beam device and vacuum pressure impregnation method |
| CN102553805B (en) * | 2012-03-05 | 2013-12-11 | 株洲时代新材料科技股份有限公司 | Vacuum pressure impregnation equipment with low-energy electron beam device and vacuum pressure impregnation method |
| CN103611660B (en) * | 2013-12-05 | 2016-09-07 | 南车洛阳机车有限公司 | A kind of decontamination Vaccum Permeating paint can and dipping paint method |
| CN103611660A (en) * | 2013-12-05 | 2014-03-05 | 南车洛阳机车有限公司 | Decontamination vacuum lacquer impregnation tank and method |
| CN104103380A (en) * | 2014-08-06 | 2014-10-15 | 安福县海能实业股份有限公司 | Insulated wire extrusion vacuumizing device |
| CN106040527A (en) * | 2016-05-30 | 2016-10-26 | 株洲南车机电科技有限公司 | Nitrogen filling vacuum pressure impregnation equipment and method |
| CN106040527B (en) * | 2016-05-30 | 2019-11-12 | 株洲南车机电科技有限公司 | A kind of nitrogen charging Vacuum Pressure Impregnation Equipment and method |
| US20220360153A1 (en) * | 2021-05-10 | 2022-11-10 | The Timken Company | Vacuum pressure impregnation method for insulation system |
| CN114937555A (en) * | 2022-05-12 | 2022-08-23 | 合肥综合性国家科学中心能源研究院(安徽省能源实验室) | Constant-temperature constant-pressure vacuum epoxy impregnation equipment with controllable impregnation rate and use method |
| CN114937555B (en) * | 2022-05-12 | 2023-09-15 | 合肥曦合超导科技有限公司 | Constant-temperature constant-pressure vacuum epoxy gum dipping equipment with controllable gum dipping rate and use method |
| CN116545192A (en) * | 2023-07-05 | 2023-08-04 | 张家港市双成电工设备有限公司 | Vacuum pressure paint dipping equipment based on cloud platform |
| CN116545192B (en) * | 2023-07-05 | 2023-09-08 | 张家港市双成电工设备有限公司 | Vacuum pressure paint dipping equipment based on cloud platform |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101086922A (en) | A vacuum balance method of vacuum pressure dipping technology and its device | |
| CN100578897C (en) | Anti-explosion vacuum pressure varnished insulation apparatus and its technical method | |
| CN101086921A (en) | A vacuum pressure dipping technology and its application device | |
| CN102179341A (en) | Vacuum pressure paint dipping device | |
| CN106881237B (en) | Vacuum hydraulic immersion system and dipping method | |
| CN105469957B (en) | Vacuum glue soaks fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History | |
| CN205673140U (en) | A kind of vacuum pressure impregnated with varnish | |
| CN202174619U (en) | Wood vacuum hot wax setting machine | |
| CN102497069A (en) | Vacuum pressure impregnating insulating method | |
| CN105655157B (en) | A kind of capacitor high-pressure lifting impregnation equipment and impregnation method | |
| CN1413376A (en) | Device for impregnating insulator of winding rod of electrical machine | |
| CN104867704B (en) | A kind of ultracapacitor vacuum infusion techniques and device | |
| CN205725385U (en) | A kind of motor vacuum paint dipping equipment | |
| CN107486906A (en) | A kind of method for improving woodwork antiseptic fire-retardation | |
| CN1787134B (en) | Technique for impregnating varnish of half packed 10KV grade high voltage coil | |
| CN111564329B (en) | Capacitor impregnation method and capacitor impregnation device | |
| CN1255825C (en) | Vacuum continuous dipping insulation process | |
| CN110420546A (en) | SF6The exceeded in-situ processing device and method of mutual inductor micro-water content | |
| CN109917212A (en) | The experimental system and method for a kind of simulation converter power transformer inside electric heating stress | |
| CN109261435A (en) | Vacuum pressure impregnation system | |
| RU2351860C2 (en) | Method for drying and impregnation of wood | |
| CN210964545U (en) | SF6Micro-water content standard exceeding field processing device for mutual inductor | |
| CN101521111A (en) | Novel immersion painting process for transformer coil | |
| CN113340073B (en) | On-site drying method and drying system for epoxy impregnated paper transformer | |
| CN201018369Y (en) | Explosion-proof vacuum pressure varnished insulation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20071212 |