CN107100819A - A kind of anti-Oil sucking device of vavuum pump - Google Patents
A kind of anti-Oil sucking device of vavuum pump Download PDFInfo
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- CN107100819A CN107100819A CN201710468029.6A CN201710468029A CN107100819A CN 107100819 A CN107100819 A CN 107100819A CN 201710468029 A CN201710468029 A CN 201710468029A CN 107100819 A CN107100819 A CN 107100819A
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- oil
- valve
- vavuum pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
- C08F255/04—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms on to ethene-propene copolymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
- C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
- C08F279/04—Vinyl aromatic monomers and nitriles as the only monomers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a kind of anti-Oil sucking device of vavuum pump, including casing, it is arranged on the valve one of casing top and is arranged on the valve two of bottom half, the valve one is connected with vavuum pump, and the valve two is connected with transformer, the circumferentially disposed sealing gasket one in the bottom of valve one；Set cursory in cursory guiding trestle, the cursory guiding trestle with being set on the correspondence position of valve one in the casing, the cursory top sets sealing gasket two；The lower box sets spray-proof oil dividing plate, and the spray-proof oil dividing plate side sets oil gas pod apertures, and the bottom half sets draining valve.When transformer vacuumizes oiling, oil level is too high; transformer oil enters the device; it is cursory to be floated in the presence of buoyancy and play sealing function; and sealing can use resin seal pad, mechanical performance is high, and transformer oil can be prevented to enter in vavuum pump; so as to play the protection to vavuum pump; it is simple in construction, it is practical and convenient, it is with low cost.
Description
Technical field
The present invention relates to vacuum pump technology field, more particularly, to a kind of anti-Oil sucking device of vavuum pump.
Background technology
Power transformer as electric energy conveying, conversion maincenter equipment, played an important role in power network, its install
The operation conditions after putting equipment in service is brought with maintenance craft quality and significantly affected, the safe operation of equipment is directly connected to.And
Vacuumize and oiling is that transformer is installed and the important procedure in overhaul.When transformer vacuumizes oiling, the valve vacuumized,
Positioned at the top of transformer, when the oil of transformer is added to from transformer top 10-20cm, valve can be closed, stops oiling, with
Prevent the oil in transformer from entering in vavuum pump.But there is no peep hole on traditional transformer, it is impossible to observe the oil of transformer
With a distance from transformer top, often cause transformer oil to enter inside vavuum pump in use, damage vavuum pump
Or reduction of service life.Have in the prior art and detection means is set on the transformer, to detect oil mass, but device is more multiple
Miscellaneous, cost is also higher.
China Patent Publication No. CN106219477A discloses a kind of quantitative vacuum oil-injecting machine, including workbench, workbench
Fuel tank is provided with, workbench is provided with container, and workbench is provided with the oil pump for being capable of the quantitative fluid of the past interior injection of container, and this is fixed
Measuring vacuum oil-injecting machine also includes two-position three-way valve, and two-position three-way valve includes port one, port two and port three, container and port
One is connected, and port two is connected by communicating pipe with the cavity of workpiece, and port three is connected with the port of a vavuum pump, port
Two can be connected with one of them in port one or port three respectively.This, which quantifies vacuum oil-injecting machine, has and can accurately control
Injection flow and the relatively simple advantage of structure.It solves existing vacuum oil-injecting machine and can not accurately control to inject toward in product
Oil mass and the problem of complex structure, quantitative vacuum oil-injecting machine can avoid the occurrence of the situation that oil enters vavuum pump, but need
Quantitative vacuum oil-injecting machine is designed, cost is higher.
China Patent Publication No. CN102680049A discloses a kind of transformer vacuum oil supervising device, including with transformer
The air extraction connector that the bleeding point of body is tightly connected, air extraction connector is linked together by exhaust tube with apparatus for vacuum producing, transformer
The pouring orifice of body is connected with vacuum oil injector by oil fuel tube, and the input of vacuum oil injector is corresponding with oil storage tank to be connected to one
Rise, the oiling valve for being provided with and being controlled by controller on the vacuum valve controlled by controller, oil fuel tube be installed on exhaust tube,
The oil surface sensor for extending to and electrically connecting in transformer body and with controller input, air extraction connector are installed on air extraction connector
On be also equipped with the detection transformer body inner chamber vacuum and vacuum sensor being electrically connected with the controller, apparatus for vacuum producing and true
The working condition of empty oil syringe is by controller control.This transformer vacuum oil supervising device, can aid in monitoring injection flow, standard
It is really reliable, it can effectively reduce the labor intensity of vacuum oil and improve vacuum oil efficiency.The detection, which is set, can detect transformation
Oil mass in device, but device is more complicated, cost is very high.
The content of the invention
In view of this, the purpose of the present invention be in view of the shortcomings of the prior art there is provided a kind of anti-Oil sucking device of vavuum pump, when
Oil level is too high when transformer vacuumizes oiling, and transformer oil enters the device, cursory to float and play in the presence of buoyancy
Sealing function, and sealing can use resin seal pad, mechanical performance is high, and transformer oil can be prevented to enter in vavuum pump, so as to rise
It is simple in construction to the protection to vavuum pump, it is practical and convenient, it is with low cost.
To reach above-mentioned purpose, the present invention uses following technical scheme：
A kind of anti-Oil sucking device of vavuum pump, including casing, be arranged on the valve one of casing top and be arranged on the valve of bottom half
Door two, the valve one is connected with vavuum pump, and the valve two is connected with transformer, the circumferentially disposed sealing in the bottom of valve one
Pad one；Set in the casing with being set on the correspondence position of valve one in cursory guiding trestle, the cursory guiding trestle
Cursory, the cursory top sets sealing gasket two；The lower box sets spray-proof oil dividing plate, and the spray-proof oil dividing plate side is set
Oil gas pod apertures are put, the bottom half sets draining valve.
Further, the casing side sets manhole, and the casing side is set with the manhole correspondence position
Overhaul hand hole cover.
Further, the cursory side sets cursory guide roller.
Further, the cursory guiding trestle inwall both sides set guide rail, and the cursory guide roller is located at described lead
In rail.
Further, casing and the spray-proof oil dividing plate uses thickness for 4-6mm steel plate.
Further, the sealing gasket one and sealing gasket two are stainless steel sealing gasket or resin seal pad.
Further, the resin seal pad is prepared from the following raw materials in parts by weight：20-30 parts of ABS resin, poly- third second
20-30 parts of alkene, 10-20 parts of polyether-ether-ketone resin, 1-2 parts of glass fibre, 5-10 parts of GMA, initiator
2-5 parts, 20-30 parts of solvent.
Further, the initiator is cumyl peroxide, and the solvent is that acetone and ethanol compare 1-2 in weight:1
Mixing.
Further, the resin seal pad is prepared by following steps：
（1）GMA and initiator are added in solvent, ABS resin and polystyrene is then added, mixed
8-12min is closed, extruded machine is in 175-190 DEG C of melting extrusion, through cooling, dry grafted products；
（2）After grafted products, polyether-ether-ketone resin and glass fibre are well mixed at 70-90 DEG C, existed by extruder
200-220 DEG C of extruding pelletization, mould machine-shaping produces product.
The beneficial effects of the invention are as follows：
1st, the present invention discloses a kind of anti-Oil sucking device of vavuum pump, including casing, is arranged on the valve one of casing top and is arranged on
The valve two of bottom half, wherein valve one are connected with vavuum pump, and valve two is connected with transformer, and the bottom of valve one is circumferentially disposed
Sealing gasket one；Set cursory in cursory guiding trestle, cursory guiding trestle with being set on the correspondence position of valve one in casing；Wherein
Cursory guiding trestle is cylindrical type hollow sting, and the entrance of oil is not influenceed, moreover it is possible to limit cursory position, and cursory is hollow knot
Structure, can be moved up and down in cursory guiding trestle under force.
2nd, cursory top sets sealing gasket two, and when oil level is too high in transformer, transformer oil can enter from valve two
In the present invention, when oil mass is more, cursory 3 meeting is moved up in the presence of buoyancy along cursory guiding trestle, cursory top
Sealing gasket two can the sealing gasket one circumferentially fixed with the bottom of valve 1 contact with each other and seal, prevent the oil entrance in casing
Vavuum pump.
3rd, lower box sets spray-proof oil dividing plate, and spray-proof oil dividing plate side sets oil gas pod apertures, by oil gas pod apertures
Be arranged on the side of spray-proof oil dividing plate, gas after the oil gas pod apertures buffering of side, after can be uniformly distributed in casing, no
Can be to cursory generation impulsive force.
4th, bottom half sets draining valve, can emit the oil in casing after vacuum oil.Casing side is set
Manhole, for the situation in inspection box body, and is overhauled, and casing side sets maintenance hand hole with manhole correspondence position
Lid, can play sealing function.
5th, set in cursory guiding trestle inwall both sides symmetric position in guide rail, cursory side symmetric position and cursory lead is set
Way roller, cursory guide roller is located in guide rail, therefore cursory guide roller can be moved along guide rail, and resistance is small, more accurately.
6th, in order to strengthen the impact resistance and oil resistance of sealing gasket one and sealing gasket two, the present invention discloses a kind of resin
Sealing gasket, uses ABS resin, polystyrene and polyether-ether-ketone resin for base-material, ABS resin is acrylonitrile-butadiene-styrene (ABS)
Copolymer, its antiacid, alkali, salt corrosive power it is stronger, organic solvent dissolving, and formability can be also resistant to a certain extent
It is good, impact resistance；And polystyrene good mechanical property, resistant to chemical etching, oil resistant is heat-resisting, and do not absorb water not oil suction.Polyether-ether-ketone resin
It is the high polymer that the repeat unit containing a ketonic bond and two ehter bonds in backbone structure is constituted, with high temperature resistant, resistance toization
The characteristics such as the self-lubricating of medicine burn into, wear-resistant and antifatigue, anti-flammability are learned, but its impact strength is poor.Therefore it is of the invention
By the blending of ABS resin, polystyrene and polyether-ether-ketone resin, it is therefore intended that improve the mechanical performance of material.
Because ABS resin, polystyrene and polyether-ether-ketone resin compatibility are bad, thus it is sweet using Glycidyl methacrylate
Grease carries out graft modification to ABS resin and polystyrene, improves compatibility, and then improve mechanical performance.Graft modification it is molten
Agent is that acetone and ethanol are mixed, and graft effect is good, and the mechanical performance of material is high.Glass fibre, glass are also added with other product
The effect of glass fiber is that when by external load or energy, load is transmitted along glass fibre to surrounding, and stress is rapid
Ground spreads, so that the growth of crackle is prevented, with toughness reinforcing and shock proof effect.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention one；
Fig. 2 is the structural representation of the embodiment of the present invention two；
Fig. 3 is the dimensional structure diagram of cursory guiding trestle in Fig. 2.
In figure：1- valves one, the cursory guiding trestles of 2-, 3- is cursory, 4- spray-proof oil dividing plates, 5- oil gas pod apertures, 6- maintenance
Hand hole cover, 7- casings, 8- draining valves, 9- valves two, 10- sealing gaskets one, 11- sealing gaskets two, the cursory guide rollers of 12-, 13- inspections
Repair hole, 14- guide rails.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment 1
As shown in figure 1, a kind of anti-Oil sucking device of vavuum pump, including casing 7, it is arranged on the valve 1 at the top of casing 7 and is arranged on
The valve 29 of the bottom of casing 7, wherein valve 1 are connected with vavuum pump, and valve 29 is connected with transformer；At the bottom of valve 1
The circumferentially fixed sealing gasket 1 in portion.
With setting cursory guiding trestle 2 on the correspondence position of valve 1 in casing 7, cursory guiding trestle 2 is that cylindrical type is hollow
Cursory 3 are set in support, cursory guiding trestle 2, wherein cursory 3 be hollow-core construction, cursory 3 can lead cursory under force
Moved up and down into support 2.Cursory 3 top sets sealing gasket 2 11；The bottom of casing 7 sets spray-proof oil dividing plate 4, and spray-proof oil every
The side of plate 4 sets oil gas pod apertures 5, and oil gas pod apertures 5 are arranged on to the side of spray-proof oil dividing plate 4, be in order to prevent cursory 3
In the presence of air-flow float, gas by side oil gas pod apertures 5 buffer after, after can be uniformly distributed in casing 7, will not be right
Cursory 3 produce impulsive force.The bottom of casing 7 sets draining valve 8, for the oil in casing 7 to be emitted.
The side of casing 7 sets manhole 13, in inspection box body 7 situation, and is overhauled, the side of casing 7 and inspection
Repair the correspondence position of hole 13 and maintenance hand hole cover 6 is set, sealing function can be played.
Casing 7 and spray-proof oil dividing plate 4 use thickness for 4-6mm steel plate, casing 7 and spray-proof oil dividing plate in the present embodiment
4 use thickness for 4mm.
Sealing gasket 1 and sealing gasket 2 11 are stainless steel sealing gasket in the present embodiment, and intensity is big.
During Oil sucking device anti-using the vavuum pump of the present embodiment, vavuum pump is connected with valve 1 first, transformer with
Valve 29 is connected, and when carrying out vacuum oil to transformer, when oil level is too high in transformer, transformer oil can be from valve 29
Middle to enter in the present invention, when oil mass is more, cursory 3 meeting is moved up in the presence of buoyancy along cursory guiding trestle 2, is floated
The sealing gasket 1 that the meeting of sealing gasket 2 11 at the top of drift 3 is circumferentially fixed with the bottom of valve 1 contacts with each other and sealed, so as to prevent
Transformer oil enters in vavuum pump, so as to play the protection to vavuum pump, prevents environmental pollution and unnecessary economic loss.
Embodiment 2
Embodiment 2 and the structure of embodiment 1 are essentially identical, and difference is：As shown in Figures 2 and 3, in cursory guiding trestle 2
Set in the symmetric position of wall both sides in guide rail 14, cursory 3 side symmetric position and cursory guide roller 12, cursory guide roller are set
12 are located in guide rail 14, therefore cursory guide roller 12 can be moved along guide rail 14.
Casing 7 and spray-proof oil dividing plate 4 use thickness for 5mm steel plate in the present embodiment.
Sealing gasket one and sealing gasket two in the present embodiment are resin seal pads, and wherein resin seal pad is by following weight
The raw material of number is made：20 parts of ABS resin, 30 parts of polystyrene, 10 parts of polyether-ether-ketone resin, 1 part of glass fibre, metering system
5 parts of acid glycidyl ester, 2 parts of initiator, 20 parts of solvent.
Wherein initiator is cumyl peroxide, and the solvent is acetone and ethanol by weight 1:1 mixing.
Resin seal pad is prepared by following steps：
（1）GMA and initiator are added in solvent, ABS resin and polystyrene is then added, it is high
Speed mixing 12min, extruded machine is in 175 DEG C of melting extrusions, through cooling, dry grafted products；
（2）After grafted products, polyether-ether-ketone resin and glass fibre are well mixed at 70 DEG C, by extruder at 200 DEG C
Extruding pelletization, mould machine-shaping produces product.
Embodiment 3
Sealing gasket one and sealing gasket two in the present embodiment are resin seal pads, and wherein resin seal pad is by following parts by weight
Raw material be made：22 parts of ABS resin, 28 parts of polystyrene, 12 parts of polyether-ether-ketone resin, 1.5 parts of glass fibre, methacrylic acid
6 parts of ethylene oxidic ester, 3 parts of initiator, 22 parts of solvent.
Wherein initiator is cumyl peroxide, and the solvent is acetone and ethanol by weight 2:1 mixing.
Resin seal pad is prepared by following steps：
（1）GMA and initiator are added in solvent, ABS resin and polystyrene is then added, it is high
Speed mixing 11min, extruded machine is in 180 DEG C of melting extrusions, through cooling, dry grafted products；
（2）After grafted products, polyether-ether-ketone resin and glass fibre are well mixed at 80 DEG C, by extruder at 210 DEG C
Extruding pelletization, mould machine-shaping produces product.
Embodiment 4
Sealing gasket one and sealing gasket two in the present embodiment are resin seal pads, and wherein resin seal pad is by following parts by weight
Raw material be made：25 parts of ABS resin, 26 parts of polystyrene, 15 parts of polyether-ether-ketone resin, 1.5 parts of glass fibre, methacrylic acid
7 parts of ethylene oxidic ester, 4 parts of initiator, 24 parts of solvent.
Wherein initiator is cumyl peroxide, and the solvent is acetone and ethanol by weight 1.5:1 mixing.
Resin seal pad is prepared by following steps：
（1）GMA and initiator are added in solvent, ABS resin and polystyrene is then added, it is high
Speed mixing 10min, extruded machine is in 185 DEG C of melting extrusions, through cooling, dry grafted products；
（2）After grafted products, polyether-ether-ketone resin and glass fibre are well mixed at 85 DEG C, by extruder at 215 DEG C
Extruding pelletization, mould machine-shaping produces product.
Embodiment 5
Sealing gasket one and sealing gasket two in the present embodiment are resin seal pads, and wherein resin seal pad is by following parts by weight
Raw material be made：26 parts of ABS resin, 25 parts of polystyrene, 16 parts of polyether-ether-ketone resin, 2 parts of glass fibre, methacrylic acid contracting
8 parts of water glyceride, 5 parts of initiator, 26 parts of solvent.
Wherein initiator is cumyl peroxide, and the solvent is acetone and ethanol by weight 1:1 mixing.
Resin seal pad is prepared by following steps：
（1）GMA and initiator are added in solvent, ABS resin and polystyrene is then added, it is high
Speed mixing 9min, extruded machine is in 190 DEG C of melting extrusions, through cooling, dry grafted products；
（2）After grafted products, polyether-ether-ketone resin and glass fibre are well mixed at 70 DEG C, by extruder at 220 DEG C
Extruding pelletization, mould machine-shaping produces product.
Embodiment 6
Sealing gasket one and sealing gasket two in the present embodiment are resin seal pads, and wherein resin seal pad is by following parts by weight
Raw material be made：28 parts of ABS resin, 22 parts of polystyrene, 18 parts of polyether-ether-ketone resin, 1 part of glass fibre, methacrylic acid contracting
9 parts of water glyceride, 2 parts of initiator, 28 parts of solvent.
Wherein initiator is cumyl peroxide, and the solvent is acetone and ethanol by weight 2:1 mixing.
Resin seal pad is prepared by following steps：
（1）GMA and initiator are added in solvent, ABS resin and polystyrene is then added, it is high
Speed mixing 8min, extruded machine is in 175 DEG C of melting extrusions, through cooling, dry grafted products；
（2）After grafted products, polyether-ether-ketone resin and glass fibre are well mixed at 80 DEG C, by extruder at 200 DEG C
Extruding pelletization, mould machine-shaping produces product.
Embodiment 7
Sealing gasket one and sealing gasket two in the present embodiment are resin seal pads, and wherein resin seal pad is by following parts by weight
Raw material be made：30 parts of ABS resin, 20 parts of polystyrene, 20 parts of polyether-ether-ketone resin, 2 parts of glass fibre, methacrylic acid contracting
10 parts of water glyceride, 3 parts of initiator, 30 parts of solvent.
Wherein initiator is cumyl peroxide, and the solvent is acetone and ethanol by weight 1.5:1 mixing.
Resin seal pad is prepared by following steps：
（1）GMA and initiator are added in solvent, ABS resin and polystyrene is then added, it is high
Speed mixing 10min, extruded machine is in 180 DEG C of melting extrusions, through cooling, dry grafted products；
（2）After grafted products, polyether-ether-ketone resin and glass fibre are well mixed at 90 DEG C, by extruder at 210 DEG C
Extruding pelletization, mould machine-shaping produces product.
Comparative example 1
Comparative example 1 is substantially the same manner as Example 7, and difference is：Polystyrene is replaced with into ABS resin, i.e.,：The present embodiment
In sealing gasket one and sealing gasket two be resin seal pad, wherein resin seal pad is prepared from the following raw materials in parts by weight：
50 parts of ABS resin, 20 parts of polyether-ether-ketone resin, 2 parts of glass fibre, 10 parts of GMA, 3 parts of initiator,
30 parts of solvent.
Comparative example 2
Comparative example 2 is substantially the same manner as Example 7, and difference is：Polyether-ether-ketone resin is replaced with into polystyrene, i.e. this reality
The sealing gasket one and sealing gasket two applied in example are resin seal pads, wherein high intensity tree, i.e., fat sealing gasket is by following parts by weight
Several raw materials are made：30 parts of ABS resin, 40 parts of polystyrene, 2 parts of glass fibre, 10 parts of GMA, draw
Send out 3 parts of agent, 30 parts of solvent.
Performance test：
The performance of product prepared by embodiment 1-7 and comparative example 1-2 is detected, normal temperature Tensile strength, shore is specifically included hard
Degree and notch impact strength, after 100 DEG C × 168h, the variable quantity of tensile strength and hardness, referring specifically to table 1.
The resin seal pad performance detection data of table 1
As can be seen from Table 1, the notch impact strength of resin seal pad prepared by the present invention is 8.6-9.5KJ/m2, tensile strength
For 24-28MPa, shore hardness is 56-62, and oil resistance is excellent.
And comparative example 1 is that on the basis of embodiment 7, polystyrene is replaced with polyethers in ABS resin, comparative example 2
Ether ketone resin replaces with polystyrene, and the combination property of the product of preparation is lower than embodiment 7, illustrates three kinds of base-materials of the present invention
Compounding, can improve the comprehensive mechanical performance of product.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, this area is common
Other modifications or equivalent substitution that technical staff is made to technical scheme, without departing from technical solution of the present invention
Spirit and scope, all should cover among scope of the presently claimed invention.
Claims (9)
1. a kind of anti-Oil sucking device of vavuum pump, it is characterised in that：Including casing（7）, be arranged on casing（7）The valve one at top
（1）Be arranged on casing（7）The valve two of bottom（9）, the valve one（1）It is connected with vavuum pump, the valve two（9）With change
Depressor is connected, the valve one（1）The circumferentially disposed sealing gasket one in bottom（10）；The casing（7）The interior and valve one（1）It is right
Answer and cursory guiding trestle is set on position（2）, the cursory guiding trestle（2）It is interior to set cursory（3）, it is described cursory（3）Top
Sealing gasket two is set（11）；The casing（7）Bottom sets spray-proof oil dividing plate（4）, the spray-proof oil dividing plate（4）Side sets oil
Conductance discharge orifice（5）, the casing（7）Bottom sets draining valve（8）.
2. the anti-Oil sucking device of a kind of vavuum pump according to claim 1, it is characterised in that：The casing（7）Side is set
Manhole（13）, the casing（7）Side and the manhole（13）Correspondence position sets maintenance hand hole cover（6）.
3. the anti-Oil sucking device of a kind of vavuum pump according to claim 1, it is characterised in that：It is described cursory（3）Side is set
Cursory guide roller（12）.
4. the anti-Oil sucking device of a kind of vavuum pump according to claim 3, it is characterised in that：The cursory guiding trestle（2）
Inwall both sides set guide rail（14）, the cursory guide roller（12）Positioned at the guide rail（14）It is interior.
5. the anti-Oil sucking device of a kind of vavuum pump according to claim 1, it is characterised in that：The casing（7）And spray-proof oil
Dividing plate（4）Thickness is used for 4-6mm steel plate.
6. the anti-Oil sucking device of a kind of vavuum pump according to claim 1, it is characterised in that：The sealing gasket one（10）With it is close
Packing two（11）It is stainless steel sealing gasket or resin seal pad.
7. the anti-Oil sucking device of a kind of vavuum pump according to claim 6, it is characterised in that：The resin seal pad is by following
The raw material of parts by weight is made：20-30 parts of ABS resin, 20-30 parts of polystyrene, 10-20 parts of polyether-ether-ketone resin, glass fibers
1-2 parts of dimension, 5-10 parts of GMA, 2-5 parts of initiator, 20-30 parts of solvent.
8. the anti-Oil sucking device of a kind of vavuum pump according to claim 7, it is characterised in that：The initiator is peroxidating two
Isopropylbenzene, the solvent is acetone and ethanol by weight 1-2:1 mixing.
9. the anti-Oil sucking device of a kind of vavuum pump according to claim 7, it is characterised in that：The resin seal pad is by following
It is prepared by step：
（1）GMA and initiator are added in solvent, ABS resin and polystyrene is then added, mixed
8-12min is closed, extruded machine is in 175-190 DEG C of melting extrusion, through cooling, dry grafted products；
（2）After grafted products, polyether-ether-ketone resin and glass fibre are well mixed at 70-90 DEG C, existed by extruder
200-220 DEG C of extruding pelletization, mould machine-shaping produces product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710468029.6A CN107100819B (en) | 2017-06-20 | 2017-06-20 | A kind of anti-Oil sucking device of vacuum pump |
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| CN201710468029.6A CN107100819B (en) | 2017-06-20 | 2017-06-20 | A kind of anti-Oil sucking device of vacuum pump |
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| CN107100819B CN107100819B (en) | 2019-06-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324057A (en) * | 2021-05-19 | 2021-08-31 | 华翔翔能科技股份有限公司 | Oil drain valve of oil-immersed transformer with visualized oil liquid |
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| CN203617078U (en) * | 2013-12-24 | 2014-05-28 | 天威保变（秦皇岛）变压器有限公司 | Vacuum oiling device of transformer |
| CN206929043U (en) * | 2017-06-20 | 2018-01-26 | 国网河南省电力公司平顶山供电公司 | A kind of anti-Oil sucking device of vacuum pump |
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| CN201302753Y (en) * | 2008-11-18 | 2009-09-02 | 潍坊供电公司 | Vacuum oiling alarm device |
| CN201526431U (en) * | 2009-09-10 | 2010-07-14 | 河南省电力公司平顶山供电公司 | Vacuum pump oil return preventing device used for transformer maintenance |
| CN201829306U (en) * | 2010-09-07 | 2011-05-11 | 南车株洲电机有限公司 | Voltage transformer vacuum oil filling device |
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| CN113324057A (en) * | 2021-05-19 | 2021-08-31 | 华翔翔能科技股份有限公司 | Oil drain valve of oil-immersed transformer with visualized oil liquid |
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| CN107100819B (en) | 2019-06-21 |
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