CN104374087B - Water heater liner, its manufacture method and the water heater for being provided with the inner bag - Google Patents
Water heater liner, its manufacture method and the water heater for being provided with the inner bag Download PDFInfo
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- CN104374087B CN104374087B CN201310360299.7A CN201310360299A CN104374087B CN 104374087 B CN104374087 B CN 104374087B CN 201310360299 A CN201310360299 A CN 201310360299A CN 104374087 B CN104374087 B CN 104374087B
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Abstract
The invention belongs to field of water heaters, it is related to a kind of water heater liner, the manufacture method of the water heater liner and the water heater for being provided with the inner bag.The water heater liner includes integrally formed plastic inner container matrix and is fixedly arranged at the fibrous layer of plastic inner container outer surface of matrix.Water heater liner is made using fiber winding plastic inner container matrix in the present invention, replace the water heater liner being made in the prior art with aluminium/aluminum alloy materials and carbon steel enamel material, fiber winding water heater liner has the advantages that low cost, corrosion resistance is strong, intensity is high, can high temperature high voltage resistant.
Description
Technical field
The invention belongs to field of water heaters, and in particular to a kind of fiber winding water heater liner and its manufacture method.
Background technology
Pressure container for water treatment initially once use inner lining of steel pipe corrosion-resistant coating, but in use find easily cracking,
Peel off, it is very dangerous；Aluminium vessel was once changed to again later, aluminium vessel also not corrosion-resistant and aging is found in.
Current electric heater pressure-bearing inner liner use carbon steel enamel, shape all be cylindrical shape, but carbon steel enamel cost compared with
Height, and corrosion-resistant.
Although plastic material is widely used in solar energy inner bag, because of plastic material because easily shaping, price is relatively low
The characteristics such as low intensity, easy creep, its mechanical property can not meet water heater pressure-bearing condition, never in terms of electric heater
It is applied.
In the prior art, do not occur also being applied to heat using plastics as inner bag matrix and by fiber winding type filtering composite
The open report in hydrophone field, in order to obtain a kind of low cost, corrosion resistance is strong, intensity is high, the plastics matter of energy high temperature high voltage resistant
Water heater liner, spy proposes the present invention.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, using plastics as inner bag matrix, and modeling is wound using fiber
Water heater liner is made in material inner bag matrix, replaces the hot water being made in the prior art with carbon steel enamel material and stainless steel material
Device inner bag, the fiber winding water heater liner that the present invention is provided has low cost, corrosion resistance is strong, intensity is high, energy high temperature resistant is high
The advantages of pressure.
The second object of the present invention is the provision of the preparation method of above-mentioned water heater liner.
To achieve these goals, spy uses following technical scheme：
A kind of water heater liner, the inner bag includes integrally formed plastic inner container matrix and is fixedly arranged at plastic inner container matrix
The fibrous layer of outer surface.
The inner bag of electric heater should have the characteristic, current electricity such as high corrosion-resistant, intensity, high temperature high voltage resistant, non-aging
Water heater pressure-bearing inner liner uses carbon steel enamel, and shape is all cylindrical shape, but carbon steel enamel is easily cracked, and corrosion-resistant, separately
Have been reported that and inner container of electric water heater is made using aluminum material, but the intensity difference of aluminum liner, also not corrosion-resistant and aging.This
Outside, either carbon steel enamel inner container or aluminum liner, its complex manufacturing process, cost are higher.Although plastic material is because hold
Easy-formation, price is relatively low, but because of characteristics such as its low intensity, easy creeps, it is impossible to water heater pressure-bearing condition is met, is never existed
It is applied in terms of electric heater.
The present invention is using integrally formed plastics as inner bag matrix, and plastics are easily molded, and price is relatively low, are significantly reduced
Cost and simplify technique, and plastic inner container matrix has very strong corrosion resistance, will not produce crack performance.The present invention
In plastic inner container outer surface of matrix consolidation fibre layer, skeleton is formed, the intensity of plastic inner container is enhanced, overcomes plastic inner container easy
The defect of creep, allows plastic inner container to meet the pressure-bearing condition of water heater.
In the present invention, the plastics are selected from the material modified of PP, PE, PB, PPR or PPR.
The fibrous layer is impregnated using resin adhesive and adhesive solidification is in the outer surface of the plastic inner container matrix.
Resin adhesive main function is to ensure that fibrous layer is combined closely, and takes into account intensity and toughness after its solidification.This hair
The epoxy resin adhesive of bright offer has low viscosity, high intensity and high tenacity.Not only improve glass fiber winding technique
Progress, the higher intensity of fibrous layer and more preferable toughness can be assigned again.
The weight/mass percentage composition of resin adhesive is 25%~35% in the fibrous layer.The height of fiber impregnation content and its
Distribution influences very big to product properties, directly affects the weight and thickness of product；Gel content is too high, the combined strength bination drop of fibrous layer
It is low；Gel content is too low, the fiber gap rate increase in fibrous layer, the air-tightness, anti ageing property and the shear strength that make fibrous layer
Decline, while the performance of fibre strength is also influenceed, when the weight/mass percentage composition of resin adhesive in fibrous layer is 25%~35%,
Air-tightness, combined strength bination, anti ageing property and the shear strength of fibrous layer can reach a best balance, the synthesis of fibrous layer
Performance reaches most preferably.
The resin adhesive is selected from thermoplastic adhesive or thermosetting adhesive；The thermoplastic resin adhesive
Stick includes vinylite adhesive, acrylic resin adhesive, nylon adhesive, linear polyester adhesive, nitrocellulose
Adhesive, heteroaromatic resin adhesive and fluorine resin adhesive, it is gluing that the thermosetting adhesive includes phenolic resin
Agent, amino resin adhesive, unsaturated polyester (UP) and acrylic acid polyester resin adhesive, epoxy resin adhesive, organosilicon
Resin adhesive.
It is preferred that, the resin adhesive is selected from epoxyn.
It is furthermore preferred that the epoxy resin adhesive includes bisphenol A-type E54 epoxy resin, bisphenol A-type E20 epoxies
Resin, curing agent and toughener, described bisphenol A-type E54 epoxy resin and the mass ratio of bisphenol A-type E20 epoxy resin are 6: 4
~9.It is preferred that, described bisphenol A-type E54 epoxy resin and the mass ratio of bisphenol A-type E20 epoxy resin are 1: 1.
It is preferred that, the curing agent is amine based curative, and the toughener is acrylate toughener.The amido solidification
Agent includes ethylenediamine, diethylenetriamines, polymethylene diamines, diethyl amino propylamine, m-xylene diamine, m-phenylene diamine (MPD).Institute
State curing agent and toughener consumption refer to identical curing agent employed in the epoxyn of prior art and
The consumption of toughener, the amount ranges of the curing agent and toughener do not need those skilled in the art to pay creative labor
It is dynamic.
The fibrous layer is the scrim cloth impregnated with resin adhesive or the glass fibre impregnated with resin adhesive
The glass layer of layer or scrim cloth and the resin adhesive dipping impregnated by resin adhesive is composited.
Glass fibre has heatproof high, and non-ignitable, anti-corruption, heat-insulated, sound-proofing is good, and tensile strength is high, and it is excellent that electrical insulating property is good etc.
Point, glass fibre solidify to form fibrous layer skeleton after being impregnated by resin adhesive in plastic inner container outer surface of matrix, not only strengthens
Water heater liner mechanical property, also imparts the characteristic such as heat-insulated water heater liner, sound insulation, fire-retardant, anticorrosive, electric insulation.
Fiber cloth has extraordinary toughness, and resin adhesive main function is to ensure that fibrous layer is combined closely, and takes into account it
Intensity and toughness after solidification, the scrim cloth impregnated with resin adhesive form fine after the solidification of plastic inner container outer surface of matrix
Layer skeleton is tieed up, the intensity and toughness of inner bag is significantly enhanced, in addition, also assigning the extraordinary effect of heat insulation of inner bag.
The fiber that the glass layer of scrim cloth and the resin adhesive dipping impregnated by resin adhesive is composited
Layer, then combine the advantage of glass layer and the advantage of scrim cloth, and its skeleton formed after solidifying has high intensity and height concurrently
Toughness, improves the physicochemical property of plastic inner container matrix, with more preferable pressure-bearing heat resistance, corrosion resistance, toughness, no
Easy aging.
It is preferred that, the fibrous layer is the glass fibers of the scrim cloth and resin adhesive dipping impregnated by resin adhesive
The dimension alternate MULTILAYER COMPOSITE of layer is formed, and the innermost layer of the fibrous layer is the scrim cloth impregnated by resin adhesive, the fibre
The outermost layer of dimension layer is the glass layer impregnated by resin adhesive.Because scrim cloth has certain elasticity and toughness,
Its contact area with the outer surface of plastic inner container matrix is also maximum, it is ensured that fibrous layer and plastic inner container matrix most preferably viscous
Effect is connect, glass layer is located at the outermost layer of fibrous layer, because glass layer has certain winding pulling force, it is ensured that
The porosity of fibrous layer is low, and is closely solidificated in the outside of plastic inner container matrix so that the physicochemical property of fibrous layer reaches
It is optimal.
In the present invention, the fibrous layer is wrapped in the plastic inner container outer surface of matrix.
It is preferred that, the fibrous layer spiral wrap is in the plastic inner container outer surface of matrix.
It is further preferred that the glass fibre spiral wrap forms glass layer outside scrim cloth；It is different
Glass layer in, the winding direction of the glass fibre is different.
Because the Impact direction of glass layer and the winding direction of glass fibre are consistent, so when the winding of glass fibre
When direction is different, glass layer has a stress of multiple directions, the significant increase mechanical property of glass layer.
The plastic inner container matrix is loop configuration, and the cross section of the plastic inner container matrix is circular or similar round.
Plastic inner container matrix is designed to loop configuration by the present invention, and the cross section of inner bag is designed as circular or similar round, interior
This structure of courage causes the effectively distribution of inner bag stress area and cooperateed with that stress diminishes, is reasonably distributed, and enhances the mechanics of inner bag
Performance, it is ensured that the optimal load performance of plastic water heater lining.
The present invention by winding plastic inner container matrix with fiber and inner bag be designed into cyclic structure, overcome plastics because
Its low intensity, easy creep, it is impossible to meet water heater pressure-bearing condition without situation about being applied in terms of electric heater, sheet
The fiber winding water heater liner that invention is provided has low cost, easy-formation, and corrosion resistance is strong, intensity is high, can high temperature high voltage resistant
The advantages of.
The plastic inner container matrix is square loop configuration, cirque structure or oval ring structure.Cirque structure with it is ellipse
Evenly, with more preferable load performance, square loop configuration inner bag more saves space, design to the inner bag distribution of force of circular configuration
It is attractive in appearance, it can more meet the esthetic requirement of client.
It is preferred that, four angles of the longitudinal section of the annular inner bag matrix of the side are arc angling.
In the present invention, the thickness of plastic inner container matrix and the thickness of dimension layer change according to the size of the volume of inner bag,
For domestic, electric water heater inner bag, it is preferred that the thickness of the plastic inner container matrix is 3.0-8.0cm, preferably 3.0-
5.0cm；The thickness of the fibrous layer is 3.0-6.0mm.
Present invention also offers a kind of manufacture method of foregoing water heater liner, comprise the following steps：
（1）Plastic inner container matrix is made of blow moulding process；
（2）Fibrous layer resin adhesive is impregnated and the outer surface of the plastic inner container matrix is wrapped in, inner bag is made
Green compact；
（4）Inner bag green compact are put into vacuum bag, vacuum defoamation, elevated cure.
It is preferred that, the step（2）In, scrim cloth first is wound in plastic inner container outer surface of matrix, then in scrim cloth
Outer surface winds glass layer, and scrim cloth and glass layer is alternately reached multilayer, and inner bag green compact are made.
Curing mode is the essential condition for ensureing winding product solidification effect, directly affects the performance and matter of winding product
Amount, chemical reaction velocity can be improved by being heating and curing, and shorten hardening time, shortened the production cycle, improved production efficiency.The step
（4）In, the temperature of heat temperature raising solidification is determined according to the solidification temperature of resin adhesive, the solidification of such as epoxyn
Temperature is 80~120 DEG C.The step of the present invention（4）In, the mode of solidification can also be pressurization elevated cure, the pressure applied
For more than 1 standard atmospheric pressure, cure under pressure makes to combine closely between bucket in fiber and fiber, fiber and plastics, makes product close
Real, laminating, improves the voltage endurance capability of inner bag.
In above-mentioned preparation method, the winding tension of described glass fibre is uniform.Winding tension is wound around the key of technique
The uniformity of technology, the uniformity of tension force between Tensity size, each card fiber, and the fiber tension between each winding layer, to product
Quality influence it is very big.When fiber tension between each card fiber between tension force and each winding layer is uniform, the mechanical property of product reaches
To optimal.
Present invention also offers a kind of electric heater, including foregoing water heater liner.
Compared with prior art, the advantage of the fiber winding water heater liner of the invention provided is：
（1）Plastic inner container matrix global formation, solderless welding seam, without enamel technology, solves steel inner container due to enamel
The corrosion leak that uneven or welding etc. is caused, rotproofness is strong；
（2）The stress distribution of water heater liner is uniform, with extraordinary mechanical property, heat-insulated load performance, is difficult always
Change, fully meet inner container of electric water heater to material requirements, and cost is low, with boundless application prospect；
（3）Water heater liner is readily produced processing, and technique realizability is good；
（4）The cost of water heater is low, and the properties such as heat-resisting, corrosion resistant, pressure-bearing are good, long lifespan.
Brief description of the drawings
Fig. 1 is the front view structure figure of side's loop configuration inner bag provided in an embodiment of the present invention；
Fig. 2 is the face upwarding assumption diagram of side's loop configuration inner bag provided in an embodiment of the present invention；
Fig. 3 regards structure chart for the right side of side's loop configuration inner bag provided in an embodiment of the present invention.
Wherein, 1- courages mouthful, 2- water inlets, 3- delivery ports.
Embodiment
Embodiment one
Plastic inner container matrix is made in PP materials with blow moulding process, the thickness of inner bag matrix is 3cm, inner bag matrix
Volume is 60L；The side's of being shaped as loop configuration of plastic inner container matrix, the cross section of the annular inner bag of the side is circle, the side
Four angles of the longitudinal section of annular inner bag are arc angling.It is side's ring junction provided in an embodiment of the present invention referring to Fig. 1-3, Fig. 1
The courage mouthful 1 of inner bag is reserved in the front view structure figure of structure inner bag, four curved chamferings in angle of side's annular, the side of inner bag, embeds spiral shell
Line is used for installing heating tube；The bottom of inner bag is provided with water inlet 2 and delivery port 3.Fig. 2 is side provided in an embodiment of the present invention annular
The face upwarding assumption diagram of structure inner bag, Fig. 3 regards structure chart for the right side of side's loop configuration inner bag provided in an embodiment of the present invention.
The preparation of epoxyn：Bisphenol A-type E54 epoxy resin and bisphenol A-type E20 epoxy resin are pressed 6：4
Quality adds diethylenetriamines curing agent and MBS toughener, the wherein consumption of diethylenetriamines is 11wt% than dispensing,
MBS consumption is 2%, is allowed to well mixed in 40 DEG C of stirrings, standby.
Epoxyn is uniformly applied to the outer surface of plastic inner container matrix, then fiber cloth is cut into inner bag
Shape, and fiber cloth is fully equably spread on the outer surface of plastic inner container matrix, spread over the fiber on inner bag surface
Cloth occurs without stacking phenomenon, and the thickness of fiber cloth is 0.21mm.Appropriate pressing is carried out, makes the abundant wetting fibre of resin adhesive
Cloth, resin adhesive is smeared in the outer surface of fiber cloth, and sub-thread glass fibre is arranged into four strands of synthesis, and according to a direction spiral shell
The rotating outer surface for being wrapped in scrim cloth, tensile strength 4600Mpa, the modulus of elasticity 86.4Gpa of glass fibre, in winding glass
Resin adhesive is in time smeared during glass fiber, makes the abundant sized glass fibres of resin adhesive；Fiber is enclosed in every winding one
When, certain pulling force will be applied, and the tension uniform of fiber is often enclosed, to ensure that there is certain fiber tension to ensure for it
Intensity；At opening, to increase long fiber reinforcement amount, because these positions easily easily produce stress concentration when being pressurized.
A certain amount of epoxy resin adhesive liquid is smeared after being completely wound, then to glass fibre.According to mode above, then
Scrim cloth is uniformly sprawled outside glass layer, and scrim cloth is replaced with glass layer and reaches multilayer, different glass
Glass fibrous layer, the winding direction of glass fibre is different, and the winding angle of outermost fiber winding should not be excessive, uses up cordage
Amount covers fiber cloth comprehensively, and inner bag green compact are made.The thickness of fibrous layer is the quality of resin adhesive in 3mm, the fibrous layer
Percentage composition is 30%.
Inner bag green compact are put into vacuum bag, vacuum defoamation, the cure under pressure at 80 DEG C,.
Embodiment two
Plastic inner container matrix is made in PB materials with blow moulding process, the thickness of inner bag matrix is 8cm, inner bag matrix
Volume is 75L；Plastic inner container matrix is shaped as cirque structure, and the cross section of the annular inner bag is circle, inner bag
The courage mouthful of inner bag is reserved in side, and embedded screw thread is used for installing heating tube；The bottom of inner bag is provided with water inlet and delivery port.
The preparation of epoxyn：Bisphenol A-type E54 epoxy resin and bisphenol A-type E20 epoxy resin are pressed 6：9
Quality adds m-xylene diamine curing agent and EMA toughener, the wherein consumption of diethylenetriamines is 16wt% than dispensing,
EMA consumption is 4%, is allowed to well mixed in 40 DEG C of stirrings, standby.
Epoxyn is uniformly applied to the outer surface of plastic inner container matrix, then fiber cloth is cut into inner bag
Shape, and fiber cloth is fully equably spread on the outer surface of plastic inner container matrix, spread over the fiber on inner bag surface
Cloth occurs without stacking phenomenon, and the thickness of fiber cloth is 0.21mm.Appropriate pressing is carried out, makes the abundant wetting fibre of resin adhesive
Cloth, resin adhesive is smeared in the outer surface of fiber cloth, and sub-thread glass fibre is arranged into four strands of synthesis, and according to a direction spiral shell
The rotating outer surface for being wrapped in scrim cloth, tensile strength 4600Mpa, the modulus of elasticity 86.4Gpa of glass fibre, in winding glass
Resin adhesive is in time smeared during glass fiber, makes the abundant sized glass fibres of resin adhesive；Fiber is enclosed in every winding one
When, certain pulling force will be applied, and the tension uniform of fiber is often enclosed, to ensure that there is certain fiber tension to ensure for it
Intensity；At opening, to increase long fiber reinforcement amount, because these positions easily easily produce stress concentration when being pressurized.
A certain amount of epoxy resin adhesive liquid is smeared after being completely wound, then to glass fibre.According to mode above, then
Scrim cloth is uniformly sprawled outside glass layer, and scrim cloth is replaced with glass layer and reaches multilayer, different glass
Glass fibrous layer, the winding direction of glass fibre is different, and the winding angle of outermost fiber winding should not be excessive, uses up cordage
Amount covers fiber cloth comprehensively, and inner bag green compact are made.The thickness of fibrous layer is the quality of resin adhesive in 5mm, the fibrous layer
Percentage composition is 35%.
Inner bag green compact are put into vacuum bag, vacuum defoamation, at 100 DEG C and the pressure solidification of 1.5 normal atmospheres, i.e.,
Into.
Embodiment three
Plastic inner container matrix is made in PPR materials with blow moulding process, the thickness of inner bag matrix is 5cm, inner bag matrix
Volume be 70L；Plastic inner container matrix is shaped as oval ring structure, and the cross section of the oval ring inner bag is class circle
The courage mouthful of inner bag is reserved in shape, the side of inner bag, and embedded screw thread is used for installing heating tube；The bottom of inner bag is provided with water inlet and water outlet
Mouthful.
The preparation of epoxyn：Bisphenol A-type E54 epoxy resin and bisphenol A-type E20 epoxy resin are pressed 1：1
Quality adds ethylenediamine curing agent and MBS toughener, the wherein consumption of diethylenetriamines is 6wt%, MBS consumption than dispensing
For 2%, it is allowed to well mixed in 40 DEG C of stirrings, it is standby.
Epoxyn is uniformly applied to the outer surface of plastic inner container matrix, then fiber cloth is cut into inner bag
Shape, and fiber cloth is fully equably spread on the outer surface of plastic inner container matrix, spread over the fiber on inner bag surface
Cloth occurs without stacking phenomenon, and the thickness of fiber cloth is 0.21mm.Appropriate pressing is carried out, makes the abundant wetting fibre of resin adhesive
Cloth, resin adhesive is smeared in the outer surface of fiber cloth, and sub-thread glass fibre is arranged into four strands of synthesis, and according to a direction spiral shell
The rotating outer surface for being wrapped in scrim cloth, tensile strength 4600Mpa, the modulus of elasticity 86.4Gpa of glass fibre, in winding glass
Resin adhesive is in time smeared during glass fiber, makes the abundant sized glass fibres of resin adhesive；Fiber is enclosed in every winding one
When, certain pulling force will be applied, and the tension uniform of fiber is often enclosed, to ensure that there is certain fiber tension to ensure for it
Intensity；At opening, to increase long fiber reinforcement amount, because these positions easily easily produce stress concentration when being pressurized.
A certain amount of epoxy resin adhesive liquid is smeared after being completely wound, then to glass fibre.According to mode above, then
Scrim cloth is uniformly sprawled outside glass layer, and scrim cloth is replaced with glass layer and reaches multilayer, different glass
Glass fibrous layer, the winding direction of glass fibre is different, and the winding angle of outermost fiber winding should not be excessive, uses up cordage
Amount covers fiber cloth comprehensively, and inner bag green compact are made.The thickness of fibrous layer is the quality of resin adhesive in 4mm, the fibrous layer
Percentage composition is 25%.
Inner bag green compact are put into vacuum bag, vacuum defoamation, the cure under pressure at 100 DEG C,.
Example IV
The present embodiment and the difference of embodiment 1 are：Glass fibre is only wound in the outer surface of plastic inner container matrix,
The thickness of glass layer is 3mm.Glass layer is infiltrated using acrylic resin adhesive and is solidificated in plastic inner container matrix
Outer surface.
Embodiment five
The present embodiment and the difference of embodiment 1 are：In the outer surface of plastic inner container matrix only winding resin glue
The scrim cloth of stick dipping, the thickness of scrim cloth is 6mm.
In batch production process, resin, curing agent, toughener etc. are deployed into resin adhesive according to formula rate, adopted
With wrapping machine under conditions of control fiber tension and predetermined line style, by the continuous fiber layer of dipped resin adhesive according to predetermined
Rule be continuously wound on inner bag matrix, the thickness of fibrous layer is 3-6mm.Wrapping formed inner bag is put into curing oven
The solidification of 80-120 degree completes the preparation of inner bag.
Embodiment six
A kind of water heater is present embodiments provided, the embodiment one that the water heater is provided with arrives any one of the offer of embodiment five
Water heater liner.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (9)
1. a kind of water heater liner, it is characterised in that the inner bag includes integrally formed plastic inner container matrix and is fixedly arranged at modeling
Expect the fibrous layer of inner bag outer surface of matrix, the fibrous layer is using resin adhesive adhesive solidification in the plastic inner container matrix
Outer surface, the fibrous layer is the glass layer alternating of the scrim cloth and resin adhesive dipping impregnated by resin adhesive
MULTILAYER COMPOSITE form, the innermost layer of the fibrous layer is the scrim cloth impregnated by resin adhesive, and the fibrous layer is most
Outer layer is that the weight/mass percentage composition of resin adhesive in the glass layer impregnated by resin adhesive, the fibrous layer is 25%
~35%.
2. water heater liner according to claim 1, it is characterised in that the fibrous layer is wrapped in the plastic inner container base
External surface.
3. water heater liner according to claim 2, it is characterised in that the fibrous layer spiral wrap is in the plastics
Inner bag outer surface of matrix.
4. water heater liner according to claim 1, it is characterised in that the plastic inner container matrix is loop configuration, institute
It is circular or similar round to state the cross section of plastic inner container matrix.
5. water heater liner according to claim 4, it is characterised in that the plastic inner container matrix be square loop configuration,
Cirque structure or oval ring structure.
6. water heater liner according to claim 1, it is characterised in that the thickness of the plastic inner container matrix is 3.0-
8.0cm。
7. water heater liner according to claim 1, it is characterised in that the thickness of the fibrous layer is 3.0-6.0mm.
8. the manufacture method of the water heater liner described in a kind of power any one of 1-7, it is characterised in that comprise the following steps：(1) use
Plastic inner container matrix is made in blow moulding process；
(2) fiber cloth impregnated through resin adhesive is wound scrim cloth in plastic inner container outer surface of matrix, then in fibre
The weight/mass percentage composition of resin adhesive in the glass layer that the winding of dimension layer of cloth outer surface impregnates through resin adhesive, fibrous layer
For 25%~35%, scrim cloth and glass layer alternately reach multilayer, and outermost layer is glass layer, and inner bag life is made
Base；
(3) inner bag green compact are put into vacuum bag, vacuum defoamation, heat up cure under pressure.
9. a kind of electric heater, it is characterised in that including the water heater liner described in claim any one of 1-7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310360299.7A CN104374087B (en) | 2013-08-16 | 2013-08-16 | Water heater liner, its manufacture method and the water heater for being provided with the inner bag |
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|---|---|---|---|
| CN201310360299.7A CN104374087B (en) | 2013-08-16 | 2013-08-16 | Water heater liner, its manufacture method and the water heater for being provided with the inner bag |
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| CN106142589B (en) | 2015-04-24 | 2019-03-15 | 山东三齐能源有限公司 | The production method of pressure resistant vessel with heating device |
| CN107726624A (en) * | 2017-10-13 | 2018-02-23 | 青岛海尔智能技术研发有限公司 | A kind of water heater liner and its manufacture method |
| CN111189224B (en) * | 2020-01-10 | 2021-04-09 | 山东大学 | Preparation system and preparation method of fiber-reinforced liner of water heater |
| CN112810112A (en) * | 2021-02-10 | 2021-05-18 | 开能健康科技集团股份有限公司 | Liner structure and method for manufacturing same through blow molding |
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| CN202267256U (en) * | 2011-09-23 | 2012-06-06 | 山东力诺瑞特新能源有限公司 | Pure plastic inner container of solar water heater |
| CN102588701A (en) * | 2012-02-29 | 2012-07-18 | 青岛百旺电器有限公司 | Pre-embedded pipe and solar water heater plastic inner container adopting same |
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