CN108050267B - Six-seal zero-friction energy-storage double-top type spin valve - Google Patents
Six-seal zero-friction energy-storage double-top type spin valve Download PDFInfo
- Publication number
- CN108050267B CN108050267B CN201711345644.4A CN201711345644A CN108050267B CN 108050267 B CN108050267 B CN 108050267B CN 201711345644 A CN201711345644 A CN 201711345644A CN 108050267 B CN108050267 B CN 108050267B
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- Prior art keywords
- head cap
- socket head
- cap screw
- hexagon socket
- inner hexagon
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- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
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- 238000007750 plasma spraying Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0626—Easy mounting or dismounting means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K25/00—Details relating to contact between valve members and seats
- F16K25/005—Particular materials for seats or closure elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0647—Spindles or actuating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0673—Composite packings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/22—Features relating to lubrication
- F16K5/227—Features relating to lubrication for plugs with spherical surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a six-seal zero-friction energy-storage double-top rotary ball valve which comprises a valve body, a cover plate, a sealing gasket, an upper valve rod and a lower valve rod, wherein a scouring resistant layer is arranged in the valve body, a high-temperature resistant layer is arranged in the valve body on one side of the scouring resistant layer, an anti-corrosion layer is arranged in the valve body on one side of the high-temperature resistant layer, the upper valve rod and the lower valve rod are respectively arranged at two ends of the valve body, a rubber gasket is arranged on one side of the upper valve rod at the bottom of the rubber gasket, a ball is arranged on one side of the upper valve rod, and a first inner hexagon bolt, a second inner hexagon bolt, a third inner hexagon bolt, a fourth inner hexagon bolt, a fifth inner hexagon bolt and a sixth inner hexagon bolt are respectively arranged on the surface of the valve body. The six-seal zero-friction energy-storage double-top type spin valve is good in tightness and convenient and fast to maintain due to the arrangement of a series of structures, the service life is prolonged, and the service efficiency of staff is improved.
Description
Technical Field
The invention relates to the technical field of spin valves, in particular to a six-seal zero-friction energy storage double-top spin valve.
Background
The main characteristic of the rotary ball valve is that it can be reliably turned off in forward pressure, and also can be reliably turned off in reverse pressure or reverse pressure far greater than forward pressure, and on two sealing surfaces of the sealing pair, according to the different hardness requirements, the gradient functional materials of martensitic stainless steel, austenitic stainless steel, hard alloy, metal ceramic, artificial diamond, etc. can be formed by using advanced processes of space plasma spraying, ethernet laser sputtering, vacuum protection infiltration build-up welding, etc. so that it can automatically align the center, and can automatically compensate abrasion in the over-stroke, and when it is turned off, the medium energy in the rotary ball valve can be fully utilized, and the high sealing pair can automatically apply extremely high sealing specific pressure, so that the high hard sealing pair can achieve reliable zero leakage, and the rotary ball valve can be turned off instantaneously, and the main structure of the rotary ball valve is similar to butterfly valve.
The ball valve in the market is not complete in tightness, cannot store energy, is small in use range, is not long in service life, is troublesome to maintain, is a single-top ball valve, is low in working efficiency, and therefore the six-seal zero-friction energy storage double-top ball valve is urgently needed to solve the existing problems.
Disclosure of Invention
The invention aims to provide a six-seal zero-friction energy storage double-top rotary ball valve so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the six-seal zero-friction energy-storage double-top rotary ball valve comprises a valve body, a cover plate, a sealing gasket, an upper valve rod and a lower valve rod, wherein an anti-scouring layer is arranged in the valve body on one side of the anti-scouring layer, a high-temperature resistant layer is arranged in the valve body on one side of the anti-scouring layer, an anti-corrosion layer is arranged in the valve body on one side of the high-temperature resistant layer, the upper valve rod and the lower valve rod are respectively arranged at two ends in the valve body, a rubber gasket is arranged on one side of the upper valve rod on the bottom of the rubber gasket, a ball is arranged on one side of the upper valve rod on the bottom of the ball, a first sealing layer is arranged on one side of the upper valve rod on the bottom of the first sealing layer, a second sealing layer is arranged on one side of the upper valve rod on the bottom of the second sealing layer, an electric sheet is arranged on one side of the lower valve rod, the cover plate is arranged on one side of the valve body, the surface of the valve body is provided with a first inner hexagon bolt, a second inner hexagon bolt, a third inner hexagon bolt, a fourth inner hexagon bolt, a fifth inner hexagon bolt and a sixth inner hexagon bolt respectively, the surface of the valve body is provided with a sleeve body which is mutually matched with the first inner hexagon bolt, the second inner hexagon bolt, the third inner hexagon bolt, the fourth inner hexagon bolt, the fifth inner hexagon bolt and the sixth inner hexagon bolt for use, one end of the first inner hexagon bolt, the second inner hexagon bolt, the third inner hexagon bolt, the fourth inner hexagon bolt, the fifth inner hexagon bolt and one end of the sixth inner hexagon bolt are provided with spiral grooves, the surface of the first inner hexagon bolt, the second inner hexagon bolt, the third inner hexagon bolt, the fourth inner hexagon bolt, the fifth inner hexagon bolt and the sixth inner hexagon bolt is provided with a first spring and a second spring respectively, the first inner hexagon bolt on one side of the first spring and the second spring, the fourth inner hexagon bolt on one side of the first spring, the fourth inner hexagon bolt on one side of the second spring, the sixth inner hexagon bolt and the sixth inner hexagon bolt, the second hexagon socket head cap screw, third hexagon socket head cap screw, fourth hexagon socket head cap screw, fifth hexagon socket head cap screw and sixth hexagon socket head cap screw surface is provided with first adapter sleeve and second adapter sleeve respectively, one side of first hexagon socket head cap screw, second hexagon socket head cap screw, third hexagon socket head cap screw, fourth hexagon socket head cap screw, fifth hexagon socket head cap screw and sixth hexagon socket head cap screw is provided with the retainer plate, and is connected through the pin between apron and the retainer plate, one side of first hexagon socket head cap screw, second hexagon socket head cap screw, third hexagon socket head cap screw, fourth hexagon socket head cap screw, fifth hexagon socket head cap screw and sixth hexagon socket head cap screw all is provided with the handle, one side of handle is provided with fastener, one side of valve body is connected with the energy storage ware through the wire, and the surface of wire is provided with first solenoid valve, second solenoid valve, third solenoid valve, fourth solenoid valve and fifth solenoid valve respectively.
Preferably, one side of the fastening device is provided with a curved screw.
Preferably, a lubrication circuit is arranged on one side of the mounting ring.
Preferably, a bolt is arranged on one side of the electric sheet.
Preferably, one end of the valve body is provided with a first drain valve and a second drain valve respectively.
Compared with the prior art, the invention has the beneficial effects that: the six-seal zero-friction energy storage double-top type rotary ball valve is convenient for a user to install by arranging a lubrication loop, then is convenient to detach and install by arranging a pin, a first inner hexagon bolt, a second inner hexagon bolt, a third inner hexagon bolt, a fourth inner hexagon bolt, a fifth inner hexagon bolt and a sixth inner hexagon bolt, is convenient for the user to maintain the valve at the later stage, is not easy to fall off due to arranging a first fastening sleeve, a second fastening sleeve and a fastening device, is convenient for the later-stage user to use, can ensure the tightness of the valve by arranging a rubber pad, a first sealing layer, a second sealing layer and sealant, ensures the safety of the valve when the valve is used, the sealing property of the valve body can be further increased by arranging the curved screw, the valve body is more stable, sealing friction can be reduced by arranging the ball, the sealing property of the valve body is enhanced, the valve body is more beneficial to use with users by arranging two upper valve rods and two lower valve rods, the working efficiency of the users is improved, the valve body can be stored by being externally connected with other equipment by arranging the electric sheet, the use of the users is convenient, the valve body can be prevented from being corroded when in use by arranging the anti-corrosion layer, the service life of the valve body is prolonged, the valve body can be conveniently used in a high-temperature environment by arranging the high-temperature resistant layer, the use range of the valve body is increased, the valve body can be widely popularized by arranging the anti-scouring layer, the buffering effect of the valve body can be increased, prevent that great impact force from causing the damage to this valve body when using, increase the whole life of this valve body, finally through having set up first bleeder valve and second bleeder valve, make this valve body be convenient for control discharge volume's size when using, improved user's work efficiency.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic view of a seal ring according to the present invention;
FIG. 3 is an enlarged view of a portion of the present invention;
FIG. 4 is an enlarged view B of a portion of the present invention;
FIG. 5 is an enlarged view C of a portion of the present invention;
FIG. 6 is a schematic view of a seal structure according to the present invention
FIG. 7 is a schematic view of the installation of the present invention;
FIG. 8 is a graph showing the modification effect of GO in various forms as a modifier to polysulfide rubber;
FIG. 9 is a graph showing the effect of GO addition on the hardness and cure time of the prepared polysulfide glue;
FIG. 10 is a plot of Shore hardness over time for polysulfide gums without added GO and with added GO of 0.6 phr;
FIG. 11 is a graph showing the comparison of GO addition and the tensile strength of polysulfide glue;
FIG. 12 is a graph showing the effect of GO addition on polysulfide adhesive properties;
FIG. 13 is a graph showing the comparison of nano calcium carbonate addition and pull-up strength;
FIG. 14 is a graph showing the ratio of nano calcium carbonate to elongation at break;
FIG. 15 is a graph showing the comparison of nano calcium carbonate addition and bond strength;
FIG. 16 is a graph showing the effect of sGO addition on the hardness and cure time of the prepared polysulfide glue;
FIG. 17 is a graph showing the comparison of the added amount of no sGO added and the tensile strength;
FIG. 18 is a graph showing the amount of added sGO versus tensile strength;
FIG. 19 is a graph showing the effect of sGO addition on polysulfide adhesive properties;
FIG. 20 is a graph showing the effect of the addition amount of iGO on the hardness and curing time of the obtained polysulfide glue;
FIG. 21 is a graph of the addition of iGO versus increasing the tensile strength of polysulfide glue;
FIG. 22 is a graph showing the effect of iGO addition on polysulfide adhesive properties;
FIG. 23 is a graph of tensile strength versus polysulfide rubber for three modifiers GO. sGO and iGO;
FIG. 24 is a graph comparing elongation at break of GO. sGO and iGO for three modifiers versus polysulfide rubber;
FIG. 25 is a graph of bond strength versus polysulfide rubber for three modifiers GO. sGO and iGO;
FIG. 26 is a graph showing the effect of 0.2phr of various modifiers on acid and alkali resistance and solvent resistance of polysulfide glue;
in the figure: 1-a valve body; 2-a sleeve body; 3-lubrication circuit; 4-cover plate; 5-pins; 6-mounting ring; 7-a gasket; 8-a first fastening sleeve; 9-a first spring; 10-a second fastening sleeve; 11-fastening means; 12-handle; 13-a curved screw; 14-spiral grooves; 15-a second spring; 16-rubber pads; 17-balls; 18-a first sealing layer; 19-a second sealing layer; 20-sealing glue; 21-upper valve rod; 22-lower valve rod; 23-electric sheet; 24-bolts; 25-a first bleeder valve; 26-a second bleed valve; 27-a first socket head cap screw; 28-a second socket head cap screw; 29-a third socket head cap screw; 30-fourth hexagon socket head cap bolts; 31 a first solenoid valve; 32-a fifth socket head cap screw; 33-sixth socket head cap bolts; 34-a second solenoid valve; 35-a third solenoid valve; 36-a fourth solenoid valve; 37-a fifth solenoid valve; 38-an anticorrosive layer; 39-a high temperature resistant layer; 40-anti-scour layer.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-7, an embodiment of the present invention is provided: the six-seal zero-friction energy-storage double-top type spin valve comprises a valve body 1, a cover plate 4, a sealing gasket 7, an upper valve rod 21 and a lower valve rod 22, wherein an anti-scouring layer 40 is arranged in the valve body 1, so that the anti-scouring capability of the valve body 1 can be enhanced, the service life of the valve body 1 is prolonged, a high-temperature resistant layer 39 is arranged in the valve body 1 on one side of the anti-scouring layer 40, the application range of the valve body 1 can be expanded, the popularization is convenient, an anti-corrosion layer 38 is arranged in the valve body 1 on one side of the high-temperature resistant layer 39, the service life of the valve body 1 is prolonged, the upper valve rod 21 and the lower valve rod 22 are respectively arranged at two ends of the inner part of the valve body 1, a rubber gasket 16 is arranged on one side of the upper valve rod 21, the sealing performance of the valve body 1 is enhanced, a ball 17 is arranged on one side of the upper valve rod 21 on the bottom of the rubber gasket 16, the ball valve is characterized in that a first sealing layer 18 is arranged on one side of an upper valve rod 21 at the bottom of the ball 17, a second sealing layer 19 is arranged on one side of the upper valve rod 21 at the bottom of the first sealing layer 18, a sealant 20 is arranged on one side of the upper valve rod 21 at the bottom of the second sealing layer 19, an electric sheet 23 is arranged on one side of a lower valve rod 22, a cover plate 4 is arranged on one side of the valve body 1, a first inner hexagon bolt 27, a second inner hexagon bolt 28, a third inner hexagon bolt 29, a fourth inner hexagon bolt 30, a fifth inner hexagon bolt 32 and a sixth inner hexagon bolt 33 are respectively arranged on the surface of the valve body 1, a sleeve body 2 which is mutually matched with the first inner hexagon bolt 27, the second inner hexagon bolt 28, the third inner hexagon bolt 29, the fourth inner hexagon bolt 30, the fifth inner hexagon bolt 32 and the sixth inner hexagon bolt 33 is arranged on the surface of the valve body 1, and the first inner hexagon bolt 27, the second inner hexagon bolt 28, the inner hexagon bolt, the screw grooves 14 are arranged at one ends of the third inner hexagon bolt 29, the fourth inner hexagon bolt 30, the fifth inner hexagon bolt 32 and the sixth inner hexagon bolt 33, so that the valve body 1 is convenient to install, the surfaces of the first inner hexagon bolt 27, the second inner hexagon bolt 28, the third inner hexagon bolt 29, the fourth inner hexagon bolt 30, the fifth inner hexagon bolt 32 and the sixth inner hexagon bolt 33 are respectively provided with the first spring 9 and the second spring 15, the surfaces of the first inner hexagon bolt 27, the second inner hexagon bolt 28, the third inner hexagon bolt 29, the fourth inner hexagon bolt 30, the fifth inner hexagon bolt 32 and the sixth inner hexagon bolt 33 at one side of the first spring 9 and the second spring 15 are respectively provided with the first fastening sleeve 8 and the second fastening sleeve 10, one side of the first inner hexagon bolt 27, the second inner hexagon bolt 28, the third inner hexagon bolt 29, the fourth inner hexagon bolt 30, the fifth inner hexagon bolt 32 and the sixth inner hexagon bolt 33 is provided with the mounting ring 6, the cover plate 4 is connected with the mounting ring 6 through the pin 5, so that the valve body 1 can be conveniently mounted and dismounted, and meanwhile, later maintenance is convenient, the first inner hexagon bolt 27, the second inner hexagon bolt 28, the third inner hexagon bolt 29, the fourth inner hexagon bolt 30, the fifth inner hexagon bolt 32 and one side of the sixth inner hexagon bolt 33 are all provided with handles 12, one side of each handle 12 is provided with a fastening device 11, one side of the valve body 1 is connected with an energy accumulator through a wire, the surfaces of the wires are respectively provided with a first electromagnetic valve 31, a second electromagnetic valve 34, a third electromagnetic valve 35, a fourth electromagnetic valve 36 and a fifth electromagnetic valve 37, so that the valve body 1 can be conveniently stored, and meanwhile, the valve body 1 is conveniently used, one side of each fastening device 11 is provided with a curved screw 13, one side of the mounting ring 13 is provided with a lubrication circuit 3, one side of the electric sheet 23 is provided with a bolt 24, one end of the valve body 1 is respectively provided with a first drain valve 25 and a second drain valve 26, and a user can conveniently control the discharged flow.
Working principle: before use, whether the six-seal zero-friction energy-storage double-top ball valve can be normally used or not is checked, the valve body 1 is fixedly installed at a required use position through the first inner hexagon bolt 27, the second inner hexagon bolt 28, the third inner hexagon bolt 29, the fourth inner hexagon bolt 30, the fifth inner hexagon bolt 32 and the sixth inner hexagon bolt 33 during use, then the valve body 1 is regulated and controlled through the upper valve rod 21 and the lower valve rod 22, then the sealing gasket 7 enables the valve body 1 to have tightness, then energy storage is carried out through an electric sheet 23 external power supply, the energy storage can be regulated and controlled through the first electromagnetic valve 31, the second electromagnetic valve 34, the third electromagnetic valve 35, the fourth electromagnetic valve 36 and the fifth electromagnetic valve 37, then the integral drainage is carried out through the regulation and control of the first leakage valve 25 and the second leakage valve 26, and finally after use, the pin 5, the first inner hexagon bolt 27, the second inner hexagon bolt 28, the third inner hexagon bolt 29, the fourth inner hexagon bolt 30, the fifth inner hexagon bolt 32 and the sixth inner hexagon bolt 33 are dismounted.
The sealant 20 is a modified polysulfide sealant, and its manufacturing steps are as follows:
s1, preparing graphene oxide, wherein the preparation comprises three reaction stages of low-temperature, medium-temperature and high-temperature reactions:
adding 115ml of 98% concentrated sulfuric acid into a 500ml three-neck flask, stirring in an ice water bath in a heat-collecting constant-temperature heating magnetic stirrer, adding a mixture of 5g of expanded graphite and 2.5g of sodium nitrate, continuously stirring for a period of time to fully mix, adding 15g of potassium permanganate in total for 5 times in 1 hour, slowly adding to ensure uniform mixing, and continuously stirring in the ice water bath for a period of time after adding the potassium permanganate;
after the low temperature stage is finished, the three-mouth flask is moved into a constant-temperature water bath with the temperature adjusted to 37 ℃ and is continuously stirred for 1 hour, medium-temperature reaction is carried out, 200ml of deionized water is slowly and continuously added into the three-mouth flask after the medium-temperature reaction is finished, at the moment, water is added into the residual concentrated sulfuric acid to release heat vigorously, the temperature of the reaction liquid is greatly increased, the reaction temperature is controlled to be not more than 98 ℃ by utilizing an ice water bath, the stirring reaction is continuously carried out for 15 minutes at 98 ℃, a stirrer and the constant-temperature water bath are removed, the mixture in the three-mouth flask is moved into a 1000ml beaker, 5% hydrogen peroxide aqueous solution is added, at the moment, the reaction liquid becomes golden yellow, the mixture is filtered while the mixture is hot, a filter cake is fully washed by 5% of diluted hydrochloric acid and deionized water, and the filtrate is detected to not contain SO any more by using a barium chloride solution 4 2- Until that is reached;
placing the filter cake in a drying oven at 70 ℃ for preliminary dry bath, drying in a vacuum drying oven at 70 ℃ for 48 hours, grinding, mixing powdery grinding material and deionized water according to the proportion of 5mg/ml to form a dispersion liquid, ultrasonically dispersing in an ultrasonic cleaner for 30 minutes, replacing heated ultrasonic water, repeating ultrasonic treatment for 2 hours, fully drying the dispersion liquid, and grinding the dried solid for later use;
s2, preparing modified graphene oxide, namely dissolving 0.1g of prepared graphene oxide in a mixed solution of 40 ml absolute ethyl alcohol and 50ml of deionized water, carrying out ultrasonic treatment for 15min to obtain uniform dispersion, slowly adding 10ml of absolute ethyl alcohol containing 0.3g y-aminopropyl triethoxysilane under the action of magnetic stirring, continuing stirring reaction for 24 h, carrying out suction filtration, washing a paste obtained by suction filtration with the absolute ethyl alcohol for 3 times to remove redundant y-aminopropyl triethoxysilane, naturally drying a product, and grinding to obtain y-aminopropyl triethoxysilane modified graphene oxide (sGO);
the modified raw materials are isophorone diiso acid vinegar, 0.5g graphene oxide and 50ml dimethyl tomb amine formate are put into a flask which is dried at 120 ℃, magnetic stirring is carried out, 5g isophorone diiso acid vinegar is added in the stirring process, a reaction vessel is sealed, the reaction is continued for 24 h, suction filtration is carried out, the paste obtained by suction filtration is washed for 3 times by chloroform to remove redundant isoa acid vinegar, natural drying is carried out, and grinding is carried out, thus obtaining isoa acid vinegar modified graphene oxide (iGO);
s3, preparing polysulfide sealant:
preparing a main agent, namely taking 100 g liquid polysulfide rubber in a reaction container, adding 50g of nano calcium carbonate, GO/BBP dispersion liquid containing 10g of butylbenzene phthalate, 3g of carbon black, 5g of phenolic resin and 0.5g of coupling agent, mixing into a viscous paste, pouring the paste into a three-roller grinder in batches, and repeatedly grinding for five times to obtain a paste main agent with bright color and uniform color;
the addition amount of other auxiliary agents in the main agent is recorded as the addition amount of 50phr of certain auxiliary agents in terms of the parts (phr) of polysulfide rubber per hundred parts, wherein the addition amount of certain auxiliary agents is 100 parts of liquid polysulfide rubber, the parts of the auxiliary agents are 5O parts, and the mass ratio of the auxiliary agents to the liquid polysulfide rubber is 50:100;
the preparation of the hardening agent comprises the steps of uniformly mixing active manganese dioxide powder, phthalic acid Ding Jie vinegar and diphenyl muscle (DPG) according to a mass ratio of 10:7.5:1, and then fully grinding for five times by a three-roller grinder to obtain a black paste hardening agent with uniform dryness and humidity;
s4, preparing a polysulfide sealing film, namely weighing a main agent and a hardening agent according to the mass ratio of 100:9, fully mixing and stirring the two components to obtain uniform paste, placing the uniform paste into a mold, preparing a sample with the thickness of 2mm, and curing for several days indoors at normal temperature until the paste is completely solidified.
It can be seen from fig. 8 that when GO is added as a modifier to polysulfide rubber in different forms, the modification effect produced is not the same. The effect is improved compared with the effect without adding the graphite oxide powder, which shows that the mechanical property of polysulfide rubber can be improved by adding the graphite oxide, the effect of the graphene oxide powder is better than that of the graphite oxide, the main difference between the added graphene oxide and the graphite oxide is the contact area with a matrix, and the GOBBP dispersion liquid is used as a modifier, so that the better performance improvement effect is achieved compared with the GO powder, and the added modifier is required to have better dispersion effect in polysulfide rubber to achieve the better modification purpose. On the other hand, it was also suggested that GOBBP dispersion does not achieve good dispersion due to excessive concentration, but has a relatively good dispersion effect as compared with the addition of the solid powder to polysulfide rubber, because of the corresponding addition amount of each component. Therefore, GO is firstly dispersed in BBP with better compatibility with polysulfide rubber, and then the dispersion liquid is dispersed in the polysulfide rubber.
FIG. 9 shows the effect of GO addition on the hardness and cure time of the prepared polysulfide glue. The curing time of the polysulfide glue without adding GO is 19d, which is long compared to the application of the sealant. The addition of GO can shorten the curing time to a certain extent, probably because the oxygen-containing functional group in GO reacts with an SH in polysulfide rubber to promote the chain formation and promote the curing, and the main curing effect in polysulfide rubber is that the curing agent manganese dioxide is added in an amount far more than GO, so that manganese dioxide is dominant under the condition that GO and manganese dioxide react with-SH respectively to cure the same, and therefore, GO only affects the curing of polysulfide rubber to a small extent, and the fact that the curing speed is generally improved along with the increase of the addition amount of GO can be seen. The addition of GO slightly increases the hardness of the polysulfide in general, probably because GO itself has a relatively high hardness to increase the polysulfide hardness after compounding, but what affects mainly its hardness is the filler added.
Fig. 10 is a plot of shore hardness versus time for polysulfide glue without added GO and with 0.6 phr GO added. The reaction of manganese dioxide with polysulfide rubber begins several days before the curing process, the hardness of the sealant is low and difficult to measure, and then the hardness is rapidly increased to be close to that of curing, and the hardness is slowly increased, because a small amount of manganese dioxide is continuously subjected to the curing reaction. After complete curing, the hardness of the sealant is no longer changed.
As can be seen from FIG. 11, the addition of GO can increase the tensile strength of the polysulfide rubber, the effect of this increase is maximized at an addition level of 0.2phr, the tensile strength is increased from 1.89MPa to 2.49MPa by 31.7%, the tensile strength of the polysulfide rubber is increased with an addition level of not more than 0.2phr, and the tensile strength is decreased with an addition level of more than 0.2phr, but still higher than that without GO (a tensile strength value of 2.01 MPa is still obtained with an addition of 1phr GO). This is probably because GO has good compatibility with polysulfide rubber when the addition amount is not more than 0.2phr, better dispersibility and anisotropic distribution are presented, physical crosslinking is generated, so that the additional load of the polysulfide rubber can be smoothly transferred to graphene oxide sheets when the polysulfide rubber is stretched, and the graphene oxide sheets can bear part of the additional load, while the assistance groups, the spindle tomb and the like in GO can react with SH in polysulfide rubber to generate chemical crosslinking, so that the stress is easy to disperse, and the tensile strength is improved, but GO is easy to agglomerate due to huge specific surface area, and when the addition amount exceeds 0.2phr, part of GO is agglomerated, so that the bonding failure of the GO and a matrix exists, the void defect exists between the GO and the matrix, and the tensile strength is reduced. The change condition of elongation at break is similar to the tensile strength, when the addition amount of GO is not more than 0.15 phr, the elongation at break increases with the increase of the addition amount, when the addition amount of GO is 0.15 phr, the maximum 714 percent is reached, when the addition amount of GO exceeds 0.15 phr, the elongation at break decreases to be close to 570 percent when GO is not added at 0.6 phr, and then the elongation at break continuously decreases to 524 percent when GO is added at 1 pl r, and the addition of GO can have two effects on the elongation at break of polysulfide rubber, on one hand, the GO can play a role of connecting polysulfide rubber molecules, thereby equivalently increasing the molecular chains thereof and increasing the elongation at break, and on the other hand, the GO and the polysulfide rubber have a crosslinking effect, so that the sliding of polymer chain segments is restrained, and the elongation at break is mainly completed by the deformation of the polymer chain segments when the elongation at break is reduced. When the amount of GO is not more than 0.15 phr, the factor of increasing elongation at break dominates, and when the amount of GO exceeds 0.15 phr, the elongation at break is rapidly reduced by a large amount of crosslinking and agglomeration, and even less than that when GO is not added.
Fig. 12 is the effect of GO addition on polysulfide adhesive properties. There are three ways of breaking the bond specimen:
adhesion failure, cohesive failure, and mixed failure. Adhesion failure is the failure that occurs at the interface of the sealant and the adherend, and cohesive failure is the failure that occurs in the sealant. Sealing materials often require cohesive failure to achieve practical use. By observation, the failure types of the adhesive members were cohesive failure. The change of the bonding strength is similar to the tensile strength, when the addition amount of GO is not more than 0.2phr, the bonding strength of the polysulfide glue is increased along with the increase of the addition amount of GO, the maximum bonding strength is 1.37 MPa when 0.2phr is added and is improved by 20.2 percent compared with the bonding strength when no GO is added, and when the addition amount is more than 0.2phr, the bonding strength is reduced along with the increase of the addition amount and is still higher than the bonding strength when no graphene oxide is added.
From the test tables of tensile strengths of FIGS. 13-15, it can be seen that the addition of 0.2phr of GO of polysulfide rubber, when 10phr of nano calcium carbonate was added, was comparable to the polysulfide rubber without GO but with 30phr of nano calcium carbonate; the tensile strength of the polysulfide rubber is close to that of the polysulfide rubber without adding GO and with adding 50phr of nano calcium carbonate when 20phr of nano calcium carbonate is added; the tensile strength was 8% higher when 30phr of nano calcium carbonate was added than when 50phr of nano calcium carbonate was added without adding GO. The elongation at break is also a similar comparison, and it is believed that 0.2phr of GO corresponds to 20-30phr of nano-calcium carbonate in terms of efficacy in improving tensile properties.
The bonding strength of the polysulfide rubber added with 0.2phr of GO is slightly higher than that of the polysulfide rubber added with 20phr of nano calcium carbonate without adding GO when 10phr of nano calcium carbonate is added, the bonding strength of the polysulfide rubber added with 30phr of nano calcium carbonate when 20phr of nano calcium carbonate is added is slightly higher than that of the polysulfide rubber added with 30phr of nano calcium carbonate without adding GO, and the bonding strength of the polysulfide rubber added with 50phr of nano calcium carbonate when 30phr of nano calcium carbonate is added is lower than that of the polysulfide rubber added with 50phr of nano calcium carbonate without adding GO. Efficacy in improving bonding performance 0.2phr GO was considered slightly higher than 10phr nano calcium carbonate, indicating that GO is better in improving the tensile properties of polysulfide glue than in improving its bonding performance. This is mainly because the GO acts mainly to crosslink the polysulfide rubber, improving the mechanical properties of the polysulfide rubber itself rather than greatly improving its adhesion to the adhesive material.
FIG. 16 shows the effect of sGO addition on the hardness and cure time of the prepared polysulfide glue. Overall, the addition of sGO also promotes polysulfide cure and slightly increases its hardness, similar to the boost effect of GO.
In fig. 17, the curing time is 22d and slightly longer than 19d without adding the modifier sGO, mainly because the curing is affected by the preparation of the polysulfide glue and the environmental humidity during the curing of the polysulfide glue, and the curing speed of the polysulfide glue is increased when the humidity is relatively high.
The addition of sGO in fig. 18 also increases the tensile strength of the polysulfide glue, and this increase is better than GO. The tensile strength improving effect is maximum when the adding amount is 0.2phr, the tensile strength is improved from 1.89MPa to 2.91MPa by 54%, when the adding amount is not more than 0.2phr, the tensile strength of the polysulfide rubber is increased along with the increase of the adding amount of GO, and when the adding amount is more than 0.2phr, the tensile strength is reduced along with the increase of the adding amount and is higher than that when the GO is not added. The elongation at break was similar to the tensile strength, and increased with increasing amounts of sGO, reaching a maximum of 745% at 0.3phr and decreasing above 0.3phr, but still higher than that without sGO. This is probably because acid-amine bond (-CO-NH) is generated in GO modified by KH-S50, which has better compatibility with polysulfide rubber, so that sGO has better modifying effect in terms of improving tensile properties than GO.
Fig. 19 shows the effect of the amount of sGO added on polysulfide adhesive properties. The type of failure of the adhesive is also cohesive failure. The change of the bonding strength is similar to the tensile strength, when the addition amount of sGO is not more than 0.2phr, the bonding strength of the polysulfide glue is increased along with the increase of the addition amount of sGO, the maximum bonding strength is 1.49MPa when 0.2phr is added and is improved by 30.7 percent compared with that when no GO is added, and when the addition amount is more than 0.2phr, the bonding strength is reduced along with the increase of the addition amount and is still higher than that when no graphene oxide is added. The effect of sGO in improving bonding strength is also superior to GO.
FIG. 20 shows the effect of iGO addition on the hardness and cure time of the polysulfide glue produced. Similar to GO and sGO, the addition of iGO also promotes polysulfide cure and slightly increases its hardness.
As seen from FIG. 21, the addition of iGO also improved the tensile strength of the polysulfide rubber, and the improvement was also superior to GOa, and the tensile strength of the polysulfide rubber increased with increasing amount of iGO when the amount of iGO added was not more than 0.2phr, the tensile strength was maximized at 0.2phr, increased from 1.89MPa to 2.71MPa, and increased by 43.4%, and decreased with increasing amount of GO when the amount was more than 0.2phr, but was higher than that when GO was not added. The elongation at break was very similar to the tensile strength, and increased with increasing amounts of iGO, reaching a maximum of 776% at 0.2phr, and decreased at more than 0.2phr, and lower at more than 0.8 phr than without iGO. This suggests that iG0 has better modifying effect than GO in improving tensile properties, probably because of better compatibility of urethane groups (-NHCOO) in iGO with polysulfide rubber matrix.
FIG. 22 shows the effect of iGO addition on polysulfide adhesive properties. The type of failure of the adhesive is also cohesive failure. The change of the bonding strength is similar to the tensile strength, when the addition amount of iGO is not more than 0.2phr, the bonding strength of the polysulfide glue is increased along with the increase of the addition amount of sGO, the maximum bonding strength is 1.42 MPa when 0.2phr is added and is improved by 24.6 percent compared with the bonding strength when no GO is added, and when the addition amount is more than 0.2phr, the bonding strength is reduced along with the increase of the addition amount and is still higher than the bonding strength when no graphene oxide is added. iGO is also shown to be superior to GO in improving bond strength.
FIGS. 23-25 modified polysulfide rubber with respect to three modifiers, GO. sGO and iGO, by comparison of the properties of the prepared polysulfide rubber in terms of tensile strength, elongation at break and bond strength, the following conclusions can be drawn:
(1) All three modifiers are used for ensuring that the polysulfide rubber has better mechanical property when the addition amount is 0.2 phr. A polysulfide of 2.49MPa tensile strength, 684% elongation at break and 1.37 MPa bond strength was obtained by adding 0.2phr GO, a polysulfide of 2.91MPa tensile strength, 701% elongation at break and 1.49MPa bond strength was obtained by adding 0.2phr sG0, and a polysulfide of 2.71MPa tensile strength, 776% elongation at break and 1.42 MPa bond strength was obtained by adding 0.2phr iG0.
(2) In the aspect of improving the performance of the polysulfide rubber, the sG0 effect of the same additive amount is better than iGO and GO
While the same addition of iG0 is generally better than GO
(3) The three modifiers have more improvement on the tensile property and limited improvement on the bonding property in the aspect of improving the property of the polysulfide rubber.
FIG. 26 shows the effect of 0.2phr of various modifiers on acid and alkali corrosion resistance and solvent resistance of the polysulfide glue, the prepared polysulfide glue sample, after curing, was immersed in various solvents at room temperature for 15d, the studied factor being the Shore hardness variation of the polysulfide glue. As can be seen from the table, the prepared polysulfide glue has poor resistance to 5% sulfuric acid mainly because a large amount of nano calcium carbonate filler is contained in the polysulfide glue, particles of nano calcium carbonate are smaller and can easily react with sulfuric acid, so that sulfur acid resistance is poor, the polysulfide glue with no modifier added to 5% acetic acid and with GO and sGO modifiers is good, the hardness is very similar, the hardness of the polysulfide glue with iGO is slightly lower than that of the former three, the hardness is slightly reduced because partial groups still react with acetic acid in iG0 with the modification, the hardness is very good, the hardness is hardly reduced, acetone and the filler can not react, the polysulfide glue only swells in the nanometer calcium carbonate, and the final hardness of each glue sample is very similar to that of acetone resistance.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (3)
1. Six sealed zero friction energy storage double-top formula ball valves, including valve body (1), apron (4), sealed pad (7), go up valve rod (21) and lower valve rod (22), its characterized in that: the inside of valve body (1) is provided with anti-scour layer (40), the inside high temperature resistant layer (39) that is provided with of valve body (1) on one side of anti-scour layer (40), the inside anticorrosive coating (38) that is provided with of valve body (1) on one side of high temperature resistant layer (39), the inside both ends of valve body (1) are provided with upper valve rod (21) and lower valve rod (22) respectively, one side of upper valve rod (21) is provided with rubber pad (16), upper valve rod (21) one side of rubber pad (16) bottom is provided with ball (17), upper valve rod (21) one side of ball (17) bottom is provided with first sealing layer (18), upper valve rod (21) one side of first sealing layer (18) bottom is provided with second sealing layer (19), upper valve rod (21) one side of second sealing layer (19) bottom is provided with sealing gum (20), one side of lower valve rod (22) is provided with electric piece (23), one side of valve body (1) is provided with apron (4), the surface of hexagon socket head cap screw (1) is provided with first hexagon socket head cap screw (27), second socket head cap screw (33), third socket head cap screw (32) and sixth socket head cap screw (32), and the surface of valve body (1) be provided with first hexagon socket head cap screw (27), second hexagon socket screw (28), third hexagon socket screw (29), fourth hexagon socket head cap screw (30), fifth hexagon socket head cap screw (32) and sixth hexagon socket head cap screw (33) the cover body (2) that mutually support and use, first hexagon socket head cap screw (27), second hexagon socket head cap screw (28), third hexagon socket head cap screw (29), fourth hexagon socket head cap screw (30), one end of fifth hexagon socket head cap screw (32) and sixth hexagon socket head cap screw (33) is provided with helical groove (14), the surface of first hexagon socket head cap screw (27), second hexagon socket head cap screw (28), third hexagon socket head cap screw (29), fourth hexagon socket head cap screw (30), fifth hexagon socket head cap screw (32) and sixth hexagon socket head cap screw (33) is provided with first spring (9) and second spring (15) respectively, first hexagon socket head cap screw (27), second hexagon socket head cap screw (28), third hexagon socket head cap screw (29), fourth hexagon socket head cap screw (30) and fourth hexagon socket head cap screw (33) are provided with first hexagon socket head cap screw (10) and second socket head cap screw (33) respectively, first spring (9) and second spring (15) are provided with the surface of fourth hexagon socket head cap screw (33) respectively, one side of the second inner hexagon bolt (28), the third inner hexagon bolt (29), the fourth inner hexagon bolt (30), the fifth inner hexagon bolt (32) and the sixth inner hexagon bolt (33) is provided with a mounting ring (6), the cover plate (4) is connected with the mounting ring (6) through a pin (5), one side of the first inner hexagon bolt (27), the second inner hexagon bolt (28), the third inner hexagon bolt (29), the fourth inner hexagon bolt (30), one side of the fifth inner hexagon bolt (32) and the sixth inner hexagon bolt (33) is provided with a handle (12), one side of the handle (12) is provided with a fastening device (11), one side of the valve body (1) is connected with an energy accumulator through a wire, and the surfaces of the wires are respectively provided with a first electromagnetic valve (31), a second electromagnetic valve (34), a third electromagnetic valve (35), a fourth electromagnetic valve (36) and a fifth electromagnetic valve (37); one side of the fastening device (11) is provided with a curved screw rod (13); a lubrication circuit (3) is arranged on one side of the mounting ring.
2. The six seal zero friction energy storage double top rotary ball valve of claim 1, wherein: a bolt (24) is arranged on one side of the electric sheet (23).
3. The six seal zero friction energy storage double top rotary ball valve of claim 1, wherein: one end of the valve body (1) is respectively provided with a first leakage valve (25) and a second leakage valve (26).
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| DE202016103711U1 (en) * | 2016-01-14 | 2016-07-22 | Yaoting Wang | Electromagnetic three-way proportional valve for the turbocharger |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9518665B2 (en) * | 2013-11-14 | 2016-12-13 | Hantemp Corporation | Ball valve for cold fluids |
| CN207599006U (en) * | 2017-12-15 | 2018-07-10 | 安徽铜都流体科技股份有限公司 | Six sealings, zero friction accumulation of energy dual-top type spiral valve |
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| KR20030086952A (en) * | 2003-09-29 | 2003-11-12 | 신관철 | Ball valve |
| CN2795569Y (en) * | 2005-05-27 | 2006-07-12 | 李孙龙 | Pressure balance type siphone destructive valve |
| CN203703226U (en) * | 2013-12-18 | 2014-07-09 | 雷蒙德（北京）阀门制造有限公司 | Double-piston double-blocking hard sealing valve seat with metal C-shaped ring sealing structure |
| CN203963039U (en) * | 2014-07-28 | 2014-11-26 | 慎江阀门有限公司 | There is the valve of stuffing seal |
| CN104930213A (en) * | 2015-05-29 | 2015-09-23 | 嘉兴五洲阀门有限公司 | Spring energy storage seal ring seal ball valve |
| DE202016103711U1 (en) * | 2016-01-14 | 2016-07-22 | Yaoting Wang | Electromagnetic three-way proportional valve for the turbocharger |
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