CN104197519A - Healthy electric water heater - Google Patents
Healthy electric water heater Download PDFInfo
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- CN104197519A CN104197519A CN201410421024.4A CN201410421024A CN104197519A CN 104197519 A CN104197519 A CN 104197519A CN 201410421024 A CN201410421024 A CN 201410421024A CN 104197519 A CN104197519 A CN 104197519A
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Abstract
The invention relates to the technical field of water heater enamel inner containers, in particular to a healthy electric water heater. The healthy electric water heater aims to improve the anti-corrosion property and the strength of a water heater inner container. According to the healthy electric water heater, the enamel material for manufacturing the enamel inner container of the healthy electric water heater is composed of various components, performance testing experiments show that the enamel inner container of the healthy electric water heater has good acid resistance and oxidation resistance, mechanical energy shock resistance and temperature rapid change resistance are also excellent, when the material is used for manufacturing the enamel inner container of the water heater, the advantages of being good in safety performance, wide in applied range and long in service life are achieved, and the healthy electric water heater is applicable to the field of water heater inner container manufacture.
Description
Technical field
The present invention relates to enamel internal container of water-heater technical field, be specifically related to a kind of health type electric heater.
Background technology
Water heater mainly contains two kinds of liner materials, stainless steel inner container and enamel inner containers in the market.Stainless steel inner container, manufacturing process is more complicated: shear-punching-drum-weld seam-weld various workpiece-heat-insulating layer foamings, and it is corrosion-resistant, resistance to acids and bases is poor, easily fouling, the oxidizable corrosion of high temperature is met in welding position, finally causes radiator leak until whole water heater scrapped.Enamel inner container is blackening one deck inanimate matter bristol glaze and making on general steel plate, and cost is moderate, and processing technology requires high, easily produces bubble or pinprick in production process, and enamel fragility is larger simultaneously, and vibrations, collision easily produce the quick-fried phenomenon of squama.In addition, enamel can be gradually in hot water dissolves and peels off, technical being called " boiling water weightlessness " phenomenon, year for a long time come off can polluted water rust corrodes water clock for enamel, above these factors, all can cause the general steel plate under enamel coating to expose, and form corrosion and leak.Can find out above two kinds of liner material manufacturing process complexity, with high costs, exist hidden danger of quality.
Recently, prepare material from the angle research of bionic, improving the performance of material and dependability has become the focus of material science research. and people expect by the performance that promotes inner bag in the change of material, the titanium inner bag that development in recent years is got up and golden Gui inner bag are exactly a kind of enamel inner container after improving, its anticorrosive property and inner bag intensity all have obvious lifting with respect to common enamel inner container, but still can not meet the demand of industry and people's consumption demand.The present invention, just from this angle, provides a kind of health type electric heater and enamel inner container material thereof.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides enamel material and the health type electric heater thereof manufactured for water heater liner.This enamel material is made up of various ingredients, performance test experiment shows that this enamel material not only has good acid resistance and oxidation resistance, and anti-mechanical energy impact property and heatproof shock property also very excellent, while being used for making enamel internal container of water-heater, there is security performance good, applied widely, the advantage of long service life, is applicable to being applied in the inner bag manufacture field of water heater.
One of the object of the invention is to provide a kind of health type electric heater, comprise enamel internal container of water-heater (9) and the pipe joint coupling device for enamel internal container of water-heater, be used for connecting enamel inner container (9) and pipe joint (6), described jockey comprises liner (8), retainer ring (4), sealing ring (10), the discharge outlet place that liner (8) upper end is positioned at connection enamel inner container (9) is provided with the flanging (11) that is greater than discharge outlet internal diameter, the inwall of liner offers internal thread (7), retainer ring (4) is provided with external screw thread (5), the lower end of liner (8) passes from the discharge outlet of enamel inner container (9), retainer ring (4) and liner (8) are threaded connection, the lower end outer wall of described retainer ring (4) is provided with boss (12), the lower end of pipe joint (6) offers the heavy stand (2) coordinating with boss (12), pipe joint (6) is located at the discharge outlet place of enamel inner container (9), the upper end of retainer ring (4) and liner (8) are threaded connection, and the boss (12) of retainer ring (4) is by being fixed pipe joint (6) with being connected of heavy stand (2), described sealing ring (10) is positioned between enamel inner container (9) inwall and flanging (11), the internal layer of enamel inner container (9) is enamel material, its each component by following weight portion prepares:
30 ~ 50 parts of silica, 0.01 ~ 0.03 part of cupric oxide, 3 ~ 8 parts of brium carbonates, 0.005 ~ 0.01 part of cobalt oxide, 5 ~ 10 parts, zinc oxide, calcium oxide are 1～3 part, sodium oxide molybdena is 3～5 parts, antimony oxide is 0.5 ~ 2.5 part of 1 ~ 5 part, nickel oxide, 1 ~ 3 part of titanium dioxide, 0.5 ~ 2.0 part of 3 ~ 8 parts, 5 ~ 8 parts, calcite, 1 ~ 3 part of kaolin, 3 ~ 8 parts, aluminium oxide, 35 ~ 55 parts of silicon powders, soda ash and boron oxide.
In health type electric heater described above, described retainer ring 4, liner 8 adopt plastic material to make.The inwall of described retainer ring (4) offers mounting groove (3).Health type electric heater described above also comprises control system, this control system comprises monitoring means, identifying unit, output unit, it is characterized in that monitoring means can add up lower than the time of 60 DEG C water temperature, identifying unit is judged that monitored data meets lower than 60 DEG C of durations and is exceeded 10 days when (240 hours), output order is to output unit, output unit starts electrothermal tube heating after receiving instruction, after making water temperature reach 75 DEG C, stop heating, thereby reach the effect of automatically killing the bacterium growing in inner bag.
Inventor proves by performance test, the present invention's enamel material described above is better than existing for making the material of inner bag on oxidation resistance and acid resistance, wherein confirm according to above-mentioned test result, the present invention preferably embodiment is: enamel material described above, and its each component by following weight portion prepares:
40 parts of silica, 0.02 part of cupric oxide, 5.5 parts of brium carbonates, 0.008 part of cobalt oxide, 8 parts, zinc oxide, calcium oxide are 2 parts, sodium oxide molybdena is 4 parts, antimony oxide is 1.5 parts of 3 parts, nickel oxide, 2 parts of titanium dioxide, 1.3 parts of 6 parts, calcite, 2 parts of kaolin, 5.5 parts, aluminium oxide, 40 parts of silicon powders, 5.5 parts of soda ash and boron oxides.The present invention another preferably embodiment be: enamel material described above, its each component by following weight portion prepares:
50 parts of silica, 0.01 part of cupric oxide, 8 parts of brium carbonates, 0.005 part of cobalt oxide, 10 parts, zinc oxide, calcium oxide are 1 part, sodium oxide molybdena is 5 parts, antimony oxide is 0.5 part of 5 part, nickel oxide, 3 parts of titanium dioxide, 2.0 parts of 5 parts, calcite, 3 parts of kaolin, 8 parts, aluminium oxide, 35 parts of silicon powders, 8 parts of soda ash and boron oxides.
The present invention also provides a kind of preparation method of enamel material described above, and it comprises the steps:
Ratio takes raw material by weight; Ready raw material is mixed through batch mixer, melt 1.5 ~ 2.0 hours at the high temperature Cinker clew furnaces of 900 ~ 1200 DEG C, pour the mixture after melting into cold water, after cold quenching, use rear mistake 200 mesh sieves of ball mill fragmentation, can obtain enamel material of the present invention.Wherein said brium carbonate quality purity be 98% or more than.
As the preferably embodiment of one of above-mentioned enamel inner container, described enamel inner container comprises inner bag skin and inner bag internal layer, and wherein said inner bag internal layer is made by above-mentioned enamel material, and inner bag skin is metallic steel flaggy.Wherein said metallic steel flaggy in prior art the inner bag that is applied to manufacture material, this be for those skilled in the art hold facile, its preparation method is also well-known to those skilled in the art.Experiment confirmation, inner bag internal layer and metal level of the prior art that enamel material of the present invention makes have good compatibility.
The present invention also provides a kind of preparation method who prepares above-mentioned enamel inner container, and it comprises the steps:
1) prepare enamel material of the present invention according to above-mentioned preparation method;
2) glaze slip preparation: take mill addition raw material, add absolute ethyl alcohol, drum's speed of rotation is 300 r/min, Ball-milling Time is 48h, by glaze slip ageing 3～5 d after ball milling, for subsequent use, wherein mill addition raw material consist of 85 parts of enamel materials, 5 parts of clays, 0.5 part, sodium carbonate, 2.5 parts, quartz, 5.5 parts of polyacrylamides, 0.5 part of dodecyl sodium sulfate, 0.4 part of natrium nitrosum, 0.6 part of borax.
The steel plate application of slip: the steel plate of handling well is immersed to 20-30min in glaze slip, after taking-up, at 100 DEG C, be dried 10 min, surface of steel plate can form one deck idiosome, idiosome is put into batch-type furnace and can obtain the steel plate after the application of slip in 750 DEG C of sintering 10min, adopt routine techniques can prepare enamel inner container of the present invention by the steel plate after the application of slip.
Compared with prior art, obtained beneficial effect is in the present invention:
1) enamel material of the present invention compared with reference embodiment 1 in the difference aspect 40h oxidation weight gain and 100h oxidation weight gain with conspicuousness, also there is the difference of conspicuousness compared with the material of reference embodiment 2, the wherein oxidation weight gain minimum of embodiment 2 and embodiment 4 corresponding enamel materials, all has utmost point significant difference with reference embodiment 1 or the corresponding enamel material of reference embodiment 2.This shows, enamel material of the present invention for the preparation of inner bag after not only oxidation resistent susceptibility greatly strengthen with respect to existing enamel material, improve the service life of inner bag, more can prevent or delay the fragility increase that inner bag oxidation in use causes, prevent interior gallbladder break, improved the security performance that inner bag uses.
2) the enamel inner container excellent performance aspect acid resistance, anti-mechanical shock energy and heatproof shock property that adopts enamel material of the present invention to prepare has the difference of conspicuousness compared with existing enamel inner container.Compared with the enamel material and reference embodiment 2 plastic materials of enamel material of the present invention and reference embodiment 1, in the difference aspect mass loss rate, ballistic work, maximum tolerable temperature and heatproof sudden turn of events temperature with conspicuousness.Be in particular in, enamel material described in this name has significantly or utmost point significant difference with the enamel material of reference embodiment 1 aspect the improving of These parameters, and aspect ballistic work, maximum tolerable temperature and heatproof sudden turn of events temperature, has utmost point significant difference with the enamel material of reference embodiment 2.Wherein embodiment 2 enamel materials and the corresponding enamel material of embodiment 4 are more excellent aspect These parameters, are most preferred embodiment of the present invention.
3) the present invention has researched and developed the pipe joint coupling device for enamel internal container of water-heater by rational structural design, its good effect of obtaining is: the position being connected with inner bag due to pipe joint is sealed by this jockey, greatly reduce connecting portion by the danger of water institute corrosion, thereby improved the durability of inner bag.
Brief description of the drawings
Fig. 1 is the pipe joint coupling device cutaway view of the present invention for enamel internal container of water-heater;
Fig. 2 is the pipe joint coupling device STRUCTURE DECOMPOSITION figure of the present invention for enamel internal container of water-heater.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail for the concrete embodiment of health type water heater.
As shown in Figure 1 and Figure 2, a kind of pipe joint coupling device for enamel internal container of water-heater of the present invention, for connecting enamel inner container 9 and pipe joint 6, the outer wall of pipe joint 6 offers connecting thread 13.Jockey comprises liner 8, retainer ring 4, sealing ring 10, the discharge outlet place that liner 8 upper ends are positioned at connection enamel inner container 9 is provided with the flanging 11 that is greater than discharge outlet internal diameter, the inwall of liner offers internal thread 7, retainer ring 4 is provided with external screw thread 5, the lower end of liner 8 passes from the discharge outlet of enamel inner container 9, retainer ring 4 and liner 8 are threaded connection, the lower end outer wall of retainer ring 4 is provided with boss 12, the lower end of pipe joint 6 offers the heavy stand 2 coordinating with boss 12, pipe joint 6 is located at the discharge outlet place of enamel inner container 9, the upper end of retainer ring 4 and liner 8 are threaded connection, and the boss 12 of retainer ring 4 is by being fixed pipe joint 6 with being connected of heavy stand 2, sealing ring 10 is between enamel inner container 9 inwalls and flanging 11.In order to prevent that the phenomenon of getting rusty from appearring in jockey itself, retainer ring 4, liner 8 preferably adopt plastic material to make, and can certainly adopt the materials such as stainless steel.For convenient fixing, also can offer mounting groove 3 at the inwall of retainer ring 4.
Further describe the present invention by describing for the preparation of enamel material and the enamel inner container of enamel inner container internal layer below, but protection scope of the present invention is not existed to restriction.
1 one kinds of health type water heater health type water heaters of embodiment
A kind of health type electric heater, comprise enamel internal container of water-heater (9) and the pipe joint coupling device for enamel internal container of water-heater, be used for connecting enamel inner container (9) and pipe joint (6), described jockey comprises liner (8), retainer ring (4), sealing ring (10), the discharge outlet place that liner (8) upper end is positioned at connection enamel inner container (9) is provided with the flanging (11) that is greater than discharge outlet internal diameter, the inwall of liner offers internal thread (7), retainer ring (4) is provided with external screw thread (5), the lower end of liner (8) passes from the discharge outlet of enamel inner container (9), retainer ring (4) and liner (8) are threaded connection, the lower end outer wall of described retainer ring (4) is provided with boss (12), the lower end of pipe joint (6) offers the heavy stand (2) coordinating with boss (12), pipe joint (6) is located at the discharge outlet place of enamel inner container (9), the upper end of retainer ring (4) and liner (8) are threaded connection, and the boss (12) of retainer ring (4) is by being fixed pipe joint (6) with being connected of heavy stand (2), described sealing ring (10) is positioned between enamel inner container (9) inwall and flanging (11), the internal layer of enamel inner container (9) is enamel material, its each component by following weight portion prepares:
30 parts of silica, 0.01 part of cupric oxide, 3 parts of brium carbonates, 0.005 part of cobalt oxide, 5 parts, zinc oxide, calcium oxide are 1 part, sodium oxide molybdena is 3 parts, antimony oxide is 0.5 part of 1 part, nickel oxide, 1 part of titanium dioxide, 0.5 part of 5 parts, calcite, 1 part of kaolin, 3 parts, aluminium oxide, 35 parts of silicon powders, 3 parts of soda ash and boron oxide.
In order to prevent that the phenomenon of getting rusty from appearring in jockey itself, retainer ring 4, liner 8 preferably adopt plastic material to make, and can certainly adopt the materials such as stainless steel.For convenient fixing, also can offer mounting groove 3 at the inwall of retainer ring 4.
The embodiment of the present invention also comprises control system, this control system comprises monitoring means, identifying unit, output unit, it is characterized in that monitoring means can add up lower than the time of 60 DEG C water temperature, identifying unit judges that monitored data meets while exceeding 10 days lower than 60 DEG C of durations, output order is to output unit, output unit receives after instruction and starts electrothermal tube heating, stops heating after making water temperature reach 75 DEG C, thereby reaches the effect of automatically killing the bacterium growing in inner bag.
The preparation method of the enamel material for health type water heater described above, it comprises the steps: that ratio takes raw material by weight; Ready raw material is mixed through batch mixer, melt 1.5 ~ 2.0 hours at the high temperature Cinker clew furnaces of 900 ~ 1200 DEG C, pour the mixture after melting into cold water, after cold quenching, use rear mistake 200 mesh sieves of ball mill fragmentation, can obtain enamel material of the present invention.Wherein said brium carbonate quality purity be 98% or more than.
The enamel inner container of above-mentioned health type water heater, its preparation method comprises the steps:
1. prepare enamel material according to above-mentioned preparation method;
2. glaze slip preparation: take mill addition raw material, add absolute ethyl alcohol, drum's speed of rotation is 300 r/min, Ball-milling Time is 48h, by glaze slip ageing 3～5 d after ball milling, for subsequent use, wherein mill addition raw material consist of 85 parts of enamel materials, 5 parts of clays, 0.5 part, sodium carbonate, 2.5 parts, quartz, 5.5 parts of polyacrylamides, 0.5 part of dodecyl sodium sulfate, 0.4 part of natrium nitrosum, 0.6 part of borax.
3. the steel plate application of slip: the steel plate of handling well is immersed to 20-30min in glaze slip, after taking-up, at 100 DEG C, be dried 10 min, surface of steel plate can form one deck idiosome, idiosome is put into batch-type furnace and can obtain the steel plate after the application of slip in 750 DEG C of sintering 10min, adopt routine techniques can prepare enamel inner container of the present invention by the steel plate after the application of slip.
2 one kinds of health type water heaters of embodiment
A kind of health type electric heater, its structure forms with the embodiment of the present invention 1, and difference is that the enamel material of the internal layer of enamel inner container (9) is prepared by each component of following weight portion:
40 parts of silica, 0.02 part of cupric oxide, 5.5 parts of brium carbonates, 0.008 part of cobalt oxide, 8 parts, zinc oxide, calcium oxide are 2 parts, sodium oxide molybdena is 4 parts, antimony oxide is 1.5 parts of 3 parts, nickel oxide, 2 parts of titanium dioxide, 1.3 parts of 6 parts, calcite, 2 parts of kaolin, 5.5 parts, aluminium oxide, 40 parts of silicon powders, 5.5 parts of soda ash and boron oxides.
The preparation method of the enamel material for health type water heater described above, it comprises the steps: that ratio takes raw material by weight; Ready raw material is mixed through batch mixer, melt 1.5 ~ 2.0 hours at the high temperature Cinker clew furnaces of 900 ~ 1200 DEG C, pour the mixture after melting into cold water, after cold quenching, use rear mistake 200 mesh sieves of ball mill fragmentation, can obtain enamel material of the present invention.Wherein said brium carbonate quality purity be 98% or more than.
An enamel inner container for above-mentioned health type water heater, its preparation method is with the embodiment of the present invention 1.
3 one kinds of health type water heaters of embodiment
A kind of health type electric heater, its structure forms with the embodiment of the present invention 1, and difference is that the enamel material of the internal layer of enamel inner container (9) is prepared by each component of following weight portion:
50 parts of silica, 0.03 part of cupric oxide, 8 parts of brium carbonates, 0.01 part of cobalt oxide, 10 parts, zinc oxide, calcium oxide are 3 parts, sodium oxide molybdena is 5 parts, antimony oxide is 2.5 parts of 5 parts, nickel oxide, 3 parts of titanium dioxide, 2.0 parts of 8 parts, calcite, 3 parts of kaolin, 8 parts, aluminium oxide, 55 parts of silicon powders, 8 parts of soda ash and boron oxides.
The preparation method of the enamel material for health type water heater described above, it comprises the steps: that ratio takes raw material by weight; Ready raw material is mixed through batch mixer, melt 1.5 ~ 2.0 hours at the high temperature Cinker clew furnaces of 900 ~ 1200 DEG C, pour the mixture after melting into cold water, after cold quenching, use rear mistake 200 mesh sieves of ball mill fragmentation, can obtain enamel material of the present invention.Wherein said brium carbonate quality purity be 98% or more than.
An enamel inner container for above-mentioned health type water heater, its preparation method is with the embodiment of the present invention 1.
4 one kinds of health type water heaters of embodiment
A kind of health type electric heater, its structure forms with the embodiment of the present invention 1, and difference is that the enamel material of the internal layer of enamel inner container (9) is prepared by each component of following weight portion:
50 parts of silica, 0.01 part of cupric oxide, 8 parts of brium carbonates, 0.005 part of cobalt oxide, 10 parts, zinc oxide, calcium oxide are 1 part, sodium oxide molybdena is 5 parts, antimony oxide is 0.5 part of 5 part, nickel oxide, 3 parts of titanium dioxide, 2.0 parts of 5 parts, calcite, 3 parts of kaolin, 8 parts, aluminium oxide, 35 parts of silicon powders, 8 parts of soda ash and boron oxides.
The preparation method of the enamel material for health type water heater described above, it comprises the steps: that ratio takes raw material by weight; Ready raw material is mixed through batch mixer, melt 1.5 ~ 2.0 hours at the high temperature Cinker clew furnaces of 900 ~ 1200 DEG C, pour the mixture after melting into cold water, after cold quenching, use rear mistake 200 mesh sieves of ball mill fragmentation, can obtain enamel material of the present invention.Wherein said brium carbonate quality purity be 98% or more than.
An enamel inner container for above-mentioned health type water heater, its preparation method is with the embodiment of the present invention 1.
5 one kinds of health type water heaters of embodiment
A kind of health type electric heater, its structure forms with the embodiment of the present invention 1, and difference is that the enamel material of the internal layer of enamel inner container (9) is prepared by each component of following weight portion:
45 parts of silica, 0.02 part of cupric oxide, 6 parts of brium carbonates, 0.006 part of cobalt oxide, 9 parts, zinc oxide, calcium oxide are 1.5 parts, sodium oxide molybdena is 3.5 parts, antimony oxide is 3 parts of 4 parts, nickel oxide, 2.5 parts of titanium dioxide, 1 part of 7 parts, calcite, 2.5 parts of kaolin, 8 parts, aluminium oxide, 40 parts of silicon powders, 5 parts of soda ash and boron oxide.
The preparation method of the enamel material for health type water heater described above, it comprises the steps: that ratio takes raw material by weight; Ready raw material is mixed through batch mixer, melt 1.5 ~ 2.0 hours at the high temperature Cinker clew furnaces of 900 ~ 1200 DEG C, pour the mixture after melting into cold water, after cold quenching, use rear mistake 200 mesh sieves of ball mill fragmentation, can obtain enamel material of the present invention.Wherein said brium carbonate quality purity be 98% or more than.
An enamel inner container for above-mentioned health type water heater, its preparation method is with the embodiment of the present invention 1.
the obtained enamel material of embodiment 1 and enamel inner container in reference embodiment 1 Chinese invention patent application CN 103787580 A
This embodiment proposes a kind of enamel internal container of water-heater, and this inner bag makes by the following method:
Step 1: steel plate is processed into inner bag blank, i.e. steel plate layer, preferably 0.8～3.5mm of the thickness of steel plate layer through operations such as shearing, punching press, stretching, welding.
Step 2: the inner wall surface to inner bag blank is cleaned, degreasing, pickling, neutralization, dry grade is carried out enamel pre-treatment, is beneficial to adhering to of enamel layer.
Step 3: the enamel powdered frit distributing according to following percentage by weight is prepared into Enamel Slip: 40～55% SiO2, 5～10% Na2O, 5～15% B2O3, 5～7% Al2O3, 0.05～0.2% Fe2O3, 3～6% K2O, 5～23% ZrO2, 3～7% CaF2, 2.5～4% NaF, 3～10% Co3O4, 2～10% CoO, 0.2～0.5% MnO2, 2～4% Li2O2, 3～10% SiC.
Step 4: the Enamel Slip preparing is coated on inner bag blank inwall by an application of slip (the wet method application of slip of flowing, or wet method sprays, or electrostatic powder such as sprays at the method).The thickness that Enamel Slip applies can not be too thick, is due to cost reason on the one hand, is that Enamel Slip is too thick on the other hand, easily causes and come off on the contrary, and therefore the preferred Enamel Slip coating thickness of the present embodiment is 150～500 μ m.
Step 5: after making inner bag blank inwall enameling glaze slip dry, inner bag blank is transported in curing oven and is burnt till, the firing temperature in curing oven is between 800～900 DEG C, and the duration is 4～10 minutes.Naturally after cooling, obtain enamel internal container of water-heater.
The enamel internal container of water-heater making is followed successively by enamel layer, adhesion layer and steel plate layer by inner side to outside.
Further, the present embodiment is made the carbon steel that the steel plate of inner bag blank adopts phosphorus content to be less than 0.08%, and steel plate titaniferous amount 0.06%～0.35%, aluminum content 0.0001%～0.05%, manganese content 0.001%～0.35%, sulfur content 0.005%～0.025%, silicon content are less than 0.37%.
the plastic inner container of embodiment 1 manufacturing in reference embodiment 2 Chinese invention patent application CN 103073798 A
Plastic inner container for water heater with the formula of polypropylene material is:
Block copolymerization polypropylene (MFR=0.40g/10min): 95.0 parts; Talcum powder (2500 order): 5.0 parts; Four [β-(3,5-di-t-butyl-4-hydroxy phenyl) propionic acid] pentaerythritol ester: 0.2 part; 1,3,5-trimethyl-2,4,6-tri-(3,5-di-t-butyl-4-hydroxybenzyl) benzene: 0.2 part; Three (2,4-di-tert-butyl-phenyl) phosphite ester: 0.1 part; Calcium stearate: 0.1 part.
The preparation method of polypropylene material for described plastic inner container for water heater, comprises the following steps: 1) take various raw materials in formula by the proportioning of aforementioned polypropene composition; 2) raw material step 1) being taken is at the even mixture material that obtains of proportioning machine high speed mixture; 3) by step 2) the mixture material double screw extruder extruding pelletization that obtains obtains plastic inner container for water heater polypropene composition material.
embodiment 6 enamel material of the present invention carries out the oxidation weight gain under the oxidation test of 100 h under 1100 DEG C of high temperature
The enamel material of enamel material of the present invention (making according to embodiment 1-5 respectively) and reference embodiment is placed in to the oxidation test of carrying out 100 h under 1100 DEG C of high temperature, measures respectively the oxidation weight gain of each enamel material in the time of 40h and 100h
Table 1 enamel material of the present invention carries out the oxidation weight gain under the oxidation test of 100 h under 1100 DEG C of high temperature
Compared with reference embodiment 1, * P < 0.05, * * P < 0.01;
Compared with reference embodiment 2, #P < 0.05, ##P < 0.01.
As can be seen from Table 2, enamel material of the present invention compared with reference embodiment 1 in the difference aspect 40h oxidation weight gain and 100h oxidation weight gain with conspicuousness, also there is the difference of conspicuousness compared with the material of reference embodiment 2, the wherein oxidation weight gain minimum of embodiment 2 and embodiment 4 corresponding enamel materials, all has utmost point significant difference with reference embodiment 1 or the corresponding enamel material of reference embodiment 2.This shows, enamel material of the present invention for the preparation of inner bag after not only oxidation resistent susceptibility greatly strengthen with respect to existing enamel material, improve the service life of inner bag, more can prevent or delay the fragility increase that inner bag oxidation in use causes, prevent interior gallbladder break, improved the security performance that inner bag uses.
embodiment 7 enamel material acid resistance of the present invention and mechanical shock resistance test
Taking carbon steel as matrix material, be processed into the rectangular blocks of 40 mm × 20 mm × 2mm_, stand-by after degreasing, pickling, neutralization, the treatment process such as dry, use respectively embodiment of the present invention 1-5 and reference embodiment 1 and the enamel material of reference embodiment 2 and the preparation method of enamel inner container of the present invention to prepare enamel inner container, measure acid resistance, mechanical shock resistance and the heatproof shock property performance of enamel inner container.
The method of testing of described index is as described below:
1) acid resistance.On the basis with reference to GB/T 7989--2003, in conjunction with the method for testing of enamel corrosion resistance to sulfuric acid in actual industrial production, the acid resistance of the enamel material to embodiment of the present invention 1-5 and reference embodiment 1 and reference embodiment 2 is with the following method tested, sample is first weighed up to the lower weight of meter record with assay balance, with measuring cup note people's 5% H
2s0
4solution, puts into sample, carries out liquid level mark.Boil 2h, boil the acid solution of middle loss and constantly use l%H
2sO
4solution is supplemented to the height of former liquid level.Take out examination and pretend, naturally cool to room temperature. after dry, claim its weight with assay balance.By the mass loss rate V in formula (1) calculation testing piece unit are
k.
V
k=(m1 mono-m2)/(S × 10
-4× t) (1)
In formula: Vk unit is g/ (m
2d); M1 is initial mass, g; M2 is the rear quality of test, g; T is etching time, d; S is the area partly that is corroded, cm
2.
2) mechanical shock resistance.
Anti-ball falling impact performance test.Falling ball impact test is widely applied to the binding ability analysis of enamel coating, wherein there is European standard ENl0209, DEZ～MB 7.10.3 (enamel adherence detection method), the standards such as the JIS-R4301 of Japanese Industrial Standards (1978) (the quality test method of enamelware) can be for reference.Carry out falling ball impact test with reference to European standard, selecting diameter is 12.5 mm, and quality is the steel ball of 110 g, calculates the mechanical shock resistance of enamel layer by formula (2).
W=m·g·h?(2)
In formula: W is ballistic work, J; M is the quality of steel ball, g; G is acceleration of gravity, and its value is 9.807 m/s2; H is the shock height mean value of 3 samples, mm.
Use said method to measure the mechanical shock resistance performance of the enamel material of embodiment of the present invention 1-5 and reference embodiment 1 and reference embodiment 2, carry out continuously 5 parallel laboratory tests, the ballistic work while recording enamel coating appearance fracture.
3) test of heatproof shock property is carried out according to GB/T 11418-89.
The temperature of water heater liner will often change, and because the coefficient of expansion of enamel layer and metal is different, the sharply variation meeting of temperature produces respectively and presses on enamel layer and metallic matrix, tension, thereby occurs enamel layer fragmentation.As heat exchanger tube protective layer---enamel, aspect heatproof acute degeneration, difference variation is larger, and performance is better.Use said method to measure the heatproof shock property of the enamel material of embodiment of the present invention 1-5 and reference embodiment 1 and reference embodiment 2, carry out continuously 5 parallel laboratory tests, the maximum tolerable temperature when recording enamel coating and occurring that ceramics comes off and the temperature of the heatproof sudden turn of events.
The test of table 2 enamel material acid resistance of the present invention, mechanical shock resistance and heatproof shock property
Compared with reference embodiment 1, * P < 0.05, * * P < 0.01;
Compared with reference embodiment 2, #P < 0.05, ##P < 0.01.
As can be seen from Table 2, compared with the enamel material and reference embodiment 2 plastic materials of enamel material of the present invention and reference embodiment 1, in the difference aspect mass loss rate, ballistic work, maximum tolerable temperature and heatproof sudden turn of events temperature with conspicuousness.Be in particular in, enamel material described in this name has significantly or utmost point significant difference with the enamel material of reference embodiment 1 aspect the improving of These parameters, and aspect ballistic work, maximum tolerable temperature and heatproof sudden turn of events temperature, has utmost point significant difference with the enamel material of reference embodiment 2.Wherein embodiment 2 enamel materials and the corresponding enamel material of embodiment 4 are more excellent aspect These parameters, are most preferred embodiment of the present invention.
In addition, the present invention is not limited to the above-mentioned embodiment of enumerating, as long as it reaches the technique effect of invention with essentially identical means, all should belong to the protection domain of invention.
Claims (8)
1. a health type electric heater, comprise enamel internal container of water-heater (9) and the pipe joint coupling device for enamel internal container of water-heater, be used for connecting enamel inner container (9) and pipe joint (6), described jockey comprises liner (8), retainer ring (4), sealing ring (10), the discharge outlet place that liner (8) upper end is positioned at connection enamel inner container (9) is provided with the flanging (11) that is greater than discharge outlet internal diameter, the inwall of liner offers internal thread (7), retainer ring (4) is provided with external screw thread (5), the lower end of liner (8) passes from the discharge outlet of enamel inner container (9), retainer ring (4) and liner (8) are threaded connection, the lower end outer wall of described retainer ring (4) is provided with boss (12), the lower end of pipe joint (6) offers the heavy stand (2) coordinating with boss (12), pipe joint (6) is located at the discharge outlet place of enamel inner container (9), the upper end of retainer ring (4) and liner (8) are threaded connection, and the boss (12) of retainer ring (4) is by being fixed pipe joint (6) with being connected of heavy stand (2), described sealing ring (10) is positioned between enamel inner container (9) inwall and flanging (11), the internal layer of enamel inner container (9) is enamel material, its each component by following weight portion prepares: 30 ~ 50 parts of silica, 0.01 ~ 0.03 part of cupric oxide, 3 ~ 8 parts of brium carbonates, 0.005 ~ 0.01 part of cobalt oxide, 5 ~ 10 parts, zinc oxide, calcium oxide is 1～3 part, sodium oxide molybdena is 3～5 parts, antimony oxide is 1 ~ 5 part, 0.5 ~ 2.5 part of nickel oxide, 1 ~ 3 part of titanium dioxide, 5 ~ 8 parts, calcite, 1 ~ 3 part of kaolin, 3 ~ 8 parts, aluminium oxide, 35 ~ 55 parts of silicon powders, 0.5 ~ 2.0 part of 3 ~ 8 parts of soda ash and boron oxide.
2. health type electric heater as claimed in claim 1, is characterized in that, described retainer ring (4), liner (8) adopt plastic material to make.
3. health type electric heater as claimed in claim 1 or 2, is characterized in that, the inwall of described retainer ring (4) offers mounting groove (3).
4. health type electric heater as claimed in claim 1, it is characterized in that, it also comprises control system, this control system comprises monitoring means, identifying unit, output unit, it is characterized in that monitoring means can add up lower than the time of 60 DEG C water temperature, identifying unit judges that monitored data meets while exceeding 10 days lower than 60 DEG C of durations, output order is to output unit, output unit starts electrothermal tube heating after receiving instruction, after making water temperature reach 75 DEG C, stop heating, thereby reach the effect of automatically killing the bacterium growing in inner bag.
5. health type electric heater as claimed in claim 1, it is characterized in that, described enamel material is prepared by each component of following weight portion: 40 parts of silica, 0.02 part of cupric oxide, 5.5 parts of brium carbonates, 0.008 part of cobalt oxide, 8 parts, zinc oxide, calcium oxide are 2 parts, sodium oxide molybdena is 4 parts, antimony oxide is 1.5 parts of 3 parts, nickel oxide, 2 parts of titanium dioxide, 1.3 parts of 6 parts, calcite, 2 parts of kaolin, 5.5 parts, aluminium oxide, 40 parts of silicon powders, 5.5 parts of soda ash and boron oxides.
6. as claim 1 health type electric heater, it is characterized in that, its each component by following weight portion of described enamel material prepares: 50 parts of silica, 0.01 part of cupric oxide, 8 parts of brium carbonates, 0.005 part of cobalt oxide, 10 parts, zinc oxide, calcium oxide are 1 part, sodium oxide molybdena is 5 parts, antimony oxide is 0.5 part of 5 part, nickel oxide, 3 parts of titanium dioxide, 2.0 parts of 5 parts, calcite, 3 parts of kaolin, 8 parts, aluminium oxide, 35 parts of silicon powders, 8 parts of soda ash and boron oxides.
7. the health type electric heater as described in as arbitrary in claim 1, claim 5 or 6, is characterized in that, described enamel material is prepared as follows: (1) by weight ratio takes raw material; Ready raw material is mixed through batch mixer, melt 1.5 ~ 2.0 hours at the high temperature Cinker clew furnaces of 900 ~ 1200 DEG C, pour the mixture after melting into cold water, after cold quenching, use rear mistake 200 mesh sieves of ball mill fragmentation, can obtain enamel material of the present invention, wherein said brium carbonate quality purity be 98% or more than.
8. health type electric heater as claimed in claim 5, is characterized in that, the preparation method of described enamel inner container comprises the steps:
1) prepare enamel material according to claim 7 preparation method;
2) glaze slip preparation: take mill addition raw material, add absolute ethyl alcohol, drum's speed of rotation is 300 r/min, Ball-milling Time is 48h, by the glaze slip ageing 3～5d after ball milling, for subsequent use, wherein mill addition raw material consist of 85 parts of enamel materials, 5 parts of clays, 0.5 part, sodium carbonate, 2.5 parts, quartz, 5.5 parts of polyacrylamides, 0.5 part of dodecyl sodium sulfate, 0.4 part of natrium nitrosum, 0.6 part of borax;
3) the steel plate application of slip: the steel plate of handling well is immersed to 20-30min in glaze slip, after taking-up, at 100 DEG C, be dried 10 min, surface of steel plate can form one deck idiosome, idiosome is put into batch-type furnace and can obtain the steel plate after the application of slip in 750 DEG C of sintering 10min, adopt routine techniques can prepare enamel inner container of the present invention by the steel plate after the application of slip.
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| CN201410421024.4A CN104197519B (en) | 2014-08-25 | 2014-08-25 | Healthy electric water heater |
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| CN201410421024.4A CN104197519B (en) | 2014-08-25 | 2014-08-25 | Healthy electric water heater |
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| CN104197519B CN104197519B (en) | 2015-05-13 |
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| CN108488507A (en) * | 2018-03-26 | 2018-09-04 | 珠海格力电器股份有限公司 | Tube joint assembly and water heater with it |
| CN112176343A (en) * | 2020-08-31 | 2021-01-05 | 佛山市三高保温水箱有限公司 | Enamel anti-oxidation process method for enamel liner of air energy water heater |
| CN113108466A (en) * | 2021-03-22 | 2021-07-13 | 青岛海尔空调器有限总公司 | Warm air blower control method and device, warm air blower and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108488507A (en) * | 2018-03-26 | 2018-09-04 | 珠海格力电器股份有限公司 | Tube joint assembly and water heater with it |
| CN108488507B (en) * | 2018-03-26 | 2019-06-04 | 珠海格力电器股份有限公司 | Tube joint assembly and water heater with it |
| CN112176343A (en) * | 2020-08-31 | 2021-01-05 | 佛山市三高保温水箱有限公司 | Enamel anti-oxidation process method for enamel liner of air energy water heater |
| CN113108466A (en) * | 2021-03-22 | 2021-07-13 | 青岛海尔空调器有限总公司 | Warm air blower control method and device, warm air blower and storage medium |
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