CN104197519B - Healthy electric water heater - Google Patents
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- CN104197519B CN104197519B CN201410421024.4A CN201410421024A CN104197519B CN 104197519 B CN104197519 B CN 104197519B CN 201410421024 A CN201410421024 A CN 201410421024A CN 104197519 B CN104197519 B CN 104197519B
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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 foaming, and it is corrosion-resistant, resistance to acids and bases is poor, easy fouling, the oxidizable corrosion of high temperature is met in welding position, finally causes radiator leak until whole water heater is 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 comparatively large simultaneously, and vibrations, collision easily produce the quick-fried phenomenon of squama.In addition, enamel can dissolve gradually in the hot water and peel off, and is technically called " boiling water is weightless " phenomenon, and enamel of a specified duration came off and understood polluted water rust corrodes water clock year, and these factors above, all can cause the general steel plate under enamel coating to expose, and formed corrosion and leaked.Can find out that above two kinds of liner material manufacturing process are complicated, with high costs, there is hidden danger of quality.
Recently, material is prepared from the angle research of bionic, improving the focus that the performance of material and dependability have become material science research. people expect by the performance change of material promoting inner bag, 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 relative to common enamel inner bag, but still can not meet the demand of industry and the consumption demand of people.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 the enamel material and health type electric heater thereof that manufacture 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 resistance to mechanical energy impact property and heatproof shock property also very excellent, there is security performance good during for making enamel internal container of water-heater, 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, for connecting enamel inner container (9) and pipe joint (6), described jockey comprises liner (8), retainer ring (4), sealing ring (10), liner (8) upper end is positioned at the discharge outlet place connecting enamel inner container (9) and is provided with the flanging (11) being 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) coordinated with boss (12), the discharge outlet place of enamel inner container (9) is located at by pipe joint (6), upper end and the liner (8) of retainer ring (4) 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, it is prepared by each component of following weight portion:
Silica 30 ~ 50 parts, cupric oxide 0.01 ~ 0.03 part, brium carbonate 3 ~ 8 parts, cobalt oxide 0.005 ~ 0.01 part, 5 ~ 10 parts, zinc oxide, calcium oxide are 1 ~ 3 part, sodium oxide molybdena is 3 ~ 5 parts, antimony oxide is 1 ~ 5 part, nickel oxide 0.5 ~ 2.5 part, titanium dioxide 1 ~ 3 part, 5 ~ 8 parts, calcite, kaolin 1 ~ 3 part, 3 ~ 8 parts, aluminium oxide, silicon powder 35 ~ 55 parts, soda ash 3 ~ 8 parts and boron oxide 0.5 ~ 2.0 part.
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 the time of water temperature lower than 60 DEG C, identifying unit judges that Monitoring Data meets lower than 60 DEG C of durations more than 10 days time (240 hours), output order is to output unit, output unit starts electrothermal tube heating after receiving instruction, stop heating after making water temperature reach 75 DEG C, thus reach the effect automatically killing the bacterium grown in inner bag.
Inventor is proved by performance test, the present invention's enamel material described above is better than the existing material for making inner bag in oxidation resistance and acid resistance, wherein confirm according to above-mentioned test result, the present invention preferably embodiment is: enamel material described above, and it is prepared by each component of following weight portion:
Silica 40 parts, cupric oxide 0.02 part, brium carbonate 5.5 parts, cobalt oxide 0.008 part, 8 parts, zinc oxide, calcium oxide are 2 parts, sodium oxide molybdena is 4 parts, antimony oxide is 3 parts, nickel oxide 1.5 parts, titanium dioxide 2 parts, 6 parts, calcite, kaolin 2 parts, 5.5 parts, aluminium oxide, silicon powder 40 parts, soda ash 5.5 parts and boron oxide 1.3 parts.The present invention another preferably embodiment be: enamel material described above, it is prepared by each component of following weight portion:
Silica 50 parts, cupric oxide 0.01 part, brium carbonate 8 parts, cobalt oxide 0.005 part, 10 parts, zinc oxide, calcium oxide are 1 part, sodium oxide molybdena is 5 parts, antimony oxide is 5 parts, nickel oxide 0.5 part, titanium dioxide 3 parts, 5 parts, calcite, kaolin 3 parts, 8 parts, aluminium oxide, silicon powder 35 parts, soda ash 8 parts and boron oxide 2.0 parts.
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, melts 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, use ball mill fragmentation rear mistake 200 mesh sieve after cold quenching, enamel material of the present invention can be obtained.Wherein said brium carbonate quality purity is 98% or more.
As the one preferably embodiment 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 obtained by above-mentioned enamel material, and inner bag skin is metallic steel flaggy.Wherein said metallic steel flaggy in prior art be applied to inner bag 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 confirms, the inner bag internal layer that enamel material of the present invention is obtained and metal level of the prior art have good compatibility.
The present invention also provides a kind of preparation method preparing above-mentioned enamel inner container, and it comprises the steps:
1) enamel material of the present invention is prepared 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 enamel material 85 parts, clay 5 parts, 0.5 part, sodium carbonate, 2.5 parts, quartz, polyacrylamide 5.5 parts, dodecyl sodium sulfate 0.5 part, natrium nitrosum 0.4 part, borax 0.6 part.
The steel plate application of slip: the steel plate handled well is immersed 20-30min in glaze slip, after taking-up at 100 DEG C dry 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, acquired beneficial effect is in the present invention:
1) enamel material of the present invention has the difference of conspicuousness compared with Comparative Examples 1 in 40h oxidation weight gain and 100h oxidation weight gain, also there is the difference of conspicuousness compared with the material of Comparative Examples 2, wherein the oxidation weight gain of embodiment 2 and the enamel material corresponding to embodiment 4 is minimum, all has pole significant difference with the enamel material corresponding to Comparative Examples 1 or Comparative Examples 2.This shows, enamel material of the present invention for the preparation of after inner bag not only oxidation resistent susceptibility greatly strengthen relative 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, improve the security performance that inner bag uses.
2) enamel inner container adopting enamel material of the present invention to prepare is excellent performance in acid resistance, resistance to mechanical impact energy and heatproof shock property, has the difference of conspicuousness compared with existing enamel inner container.Compared with the enamel material of enamel material of the present invention and Comparative Examples 1 and Comparative Examples 2 plastic material, there is in mass loss rate, ballistic work, maximum tolerable temperature and the heatproof sudden turn of events temperature difference of conspicuousness.Be in particular in, enamel material described in this name has significantly or pole significant difference with the enamel material of Comparative Examples 1 in the improvement of These parameters, in ballistic work, maximum tolerable temperature and heatproof sudden turn of events temperature, have pole significant difference with the enamel material of Comparative Examples 2.Wherein embodiment 2 enamel material and the enamel material corresponding to embodiment 4 are more excellent in These parameters, are most preferred embodiment of the present invention.
3) the present invention have developed pipe joint coupling device for enamel internal container of water-heater by rational structural design, its good effect obtained is: the position be connected with inner bag due to pipe joint is sealed by this jockey, greatly reduce connecting portion by the danger of water institute corrosion, thus improve the durability of inner bag.
Accompanying drawing explanation
Fig. 1 is the pipe joint coupling device sectional 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
Be used for health type water heater detailed description of the invention below in conjunction with accompanying drawing to the present invention to be described in further detail.
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, liner 8 upper end is positioned at the discharge outlet place connecting enamel inner container 9 and is provided with the flanging 11 being 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 coordinated with boss 12, the discharge outlet place of enamel inner container 9 is located at by pipe joint 6, upper end and the liner 8 of retainer ring 4 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 inwall and flanging 11.In order to prevent jockey itself from occurring phenomenon of getting rusty, retainer ring 4, liner 8 preferably adopt plastic material to make, and can certainly adopt the materials such as stainless steel.Conveniently fix, also can offer mounting groove 3 at the inwall of retainer ring 4.
Further describe the present invention below by way of describing for the preparation of the enamel material of enamel inner container internal layer and enamel inner container, but restriction is not existed to protection scope of the present invention.
embodiment 1 one kinds of health type water heater health type water heaters
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, for connecting enamel inner container (9) and pipe joint (6), described jockey comprises liner (8), retainer ring (4), sealing ring (10), liner (8) upper end is positioned at the discharge outlet place connecting enamel inner container (9) and is provided with the flanging (11) being 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) coordinated with boss (12), the discharge outlet place of enamel inner container (9) is located at by pipe joint (6), upper end and the liner (8) of retainer ring (4) 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, it is prepared by each component of following weight portion:
Silica 30 parts, cupric oxide 0.01 part, brium carbonate 3 parts, cobalt oxide 0.005 part, 5 parts, zinc oxide, calcium oxide are 1 part, sodium oxide molybdena is 3 parts, antimony oxide is 1 part, nickel oxide 0.5 part, titanium dioxide 1 part, 5 parts, calcite, kaolin 1 part, 3 parts, aluminium oxide, silicon powder 35 parts, soda ash 3 parts and boron oxide 0.5 part.
In order to prevent jockey itself from occurring phenomenon of getting rusty, retainer ring 4, liner 8 preferably adopt plastic material to make, and can certainly adopt the materials such as stainless steel.Conveniently fix, 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 the time of water temperature lower than 60 DEG C, identifying unit judge Monitoring Data meet lower than 60 DEG C of durations more than 10 days time, output order is to output unit, output unit starts electrothermal tube heating after receiving instruction, stop heating, thus reach the effect automatically killing the bacterium grown in inner bag after making water temperature reach 75 DEG C.
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, melts 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, use ball mill fragmentation rear mistake 200 mesh sieve after cold quenching, enamel material of the present invention can be obtained.Wherein said brium carbonate quality purity is 98% or more.
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 enamel material 85 parts, clay 5 parts, 0.5 part, sodium carbonate, 2.5 parts, quartz, polyacrylamide 5.5 parts, dodecyl sodium sulfate 0.5 part, natrium nitrosum 0.4 part, borax 0.6 part.
3. the steel plate application of slip: the steel plate handled well is immersed 20-30min in glaze slip, after taking-up at 100 DEG C dry 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.
embodiment 2 one kinds of health type water heaters
A kind of health type electric heater, its Structure composing is 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:
Silica 40 parts, cupric oxide 0.02 part, brium carbonate 5.5 parts, cobalt oxide 0.008 part, 8 parts, zinc oxide, calcium oxide are 2 parts, sodium oxide molybdena is 4 parts, antimony oxide is 3 parts, nickel oxide 1.5 parts, titanium dioxide 2 parts, 6 parts, calcite, kaolin 2 parts, 5.5 parts, aluminium oxide, silicon powder 40 parts, soda ash 5.5 parts and boron oxide 1.3 parts.
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, melts 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, use ball mill fragmentation rear mistake 200 mesh sieve after cold quenching, enamel material of the present invention can be obtained.Wherein said brium carbonate quality purity is 98% or more.
An enamel inner container for above-mentioned health type water heater, its preparation method is with the embodiment of the present invention 1.
embodiment 3 one kinds of health type water heaters
A kind of health type electric heater, its Structure composing is 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:
Silica 50 parts, cupric oxide 0.03 part, brium carbonate 8 parts, cobalt oxide 0.01 part, 10 parts, zinc oxide, calcium oxide are 3 parts, sodium oxide molybdena is 5 parts, antimony oxide is 5 parts, nickel oxide 2.5 parts, titanium dioxide 3 parts, 8 parts, calcite, kaolin 3 parts, 8 parts, aluminium oxide, silicon powder 55 parts, soda ash 8 parts and boron oxide 2.0 parts.
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, melts 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, use ball mill fragmentation rear mistake 200 mesh sieve after cold quenching, enamel material of the present invention can be obtained.Wherein said brium carbonate quality purity is 98% or more.
An enamel inner container for above-mentioned health type water heater, its preparation method is with the embodiment of the present invention 1.
embodiment 4 one kinds of health type water heaters
A kind of health type electric heater, its Structure composing is 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:
Silica 50 parts, cupric oxide 0.01 part, brium carbonate 8 parts, cobalt oxide 0.005 part, 10 parts, zinc oxide, calcium oxide are 1 part, sodium oxide molybdena is 5 parts, antimony oxide is 5 parts, nickel oxide 0.5 part, titanium dioxide 3 parts, 5 parts, calcite, kaolin 3 parts, 8 parts, aluminium oxide, silicon powder 35 parts, soda ash 8 parts and boron oxide 2.0 parts.
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, melts 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, use ball mill fragmentation rear mistake 200 mesh sieve after cold quenching, enamel material of the present invention can be obtained.Wherein said brium carbonate quality purity is 98% or more.
An enamel inner container for above-mentioned health type water heater, its preparation method is with the embodiment of the present invention 1.
embodiment 5 one kinds of health type water heaters
A kind of health type electric heater, its Structure composing is 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:
Silica 45 parts, cupric oxide 0.02 part, brium carbonate 6 parts, cobalt oxide 0.006 part, 9 parts, zinc oxide, calcium oxide are 1.5 parts, sodium oxide molybdena is 3.5 parts, antimony oxide is 4 parts, nickel oxide 3 parts, titanium dioxide 2.5 parts, 7 parts, calcite, kaolin 2.5 parts, 8 parts, aluminium oxide, silicon powder 40 parts, soda ash 5 parts and boron oxide 1 part.
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, melts 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, use ball mill fragmentation rear mistake 200 mesh sieve after cold quenching, enamel material of the present invention can be obtained.Wherein said brium carbonate quality purity is 98% or more.
An enamel inner container for above-mentioned health type water heater, its preparation method is with the embodiment of the present invention 1.
enamel material and enamel inner container obtained by embodiment 1 in Comparative Examples 1 Chinese invention patent application CN 103787580 A
This embodiment proposes a kind of enamel internal container of water-heater, and this inner bag obtains by the following method:
Step 1: steel plate is processed into inner bag blank, i.e. steel plate layer, the thickness preferably 0.8 ~ 3.5mm of steel plate layer through operations such as shearing, punching press, stretching, welding.
Step 2: clean the inner wall surface of inner bag blank, degreasing, pickling, neutralization, enamel pre-treatment is carried out in drying etc., is beneficial to the attachment of enamel layer.
Step 3: the enamel powdered frit distributed according to following percentage by weight is prepared into Enamel Slip: the SiO2 of 40 ~ 55%, the Na2O of 5 ~ 10%, the B2O3 of 5 ~ 15%, the Al2O3 of 5 ~ 7%, the Fe2O3 of 0.05 ~ 0.2%, the K2O of 3 ~ 6%, the ZrO2 of 5 ~ 23%, the CaF2 of 3 ~ 7%, the NaF of 2.5 ~ 4%, the Co3O4 of 3 ~ 10%, the CoO of 2 ~ 10%, the MnO2 of 0.2 ~ 0.5%, the Li2O2 of 2 ~ 4%, the SiC of 3 ~ 10%.
Step 4: the Enamel Slip for preparing is coated on inner bag blank inwall by an application of slip (the wet method flowing application of slip, or wet method sprays, or electrostatic powder such as to spray at the method).The thickness of Enamel Slip coating can not be too thick, is due to cost reason on the one hand, and be that Enamel Slip is too thick on the other hand, easily cause on the contrary and come off, therefore the preferred Enamel Slip coating thickness of the present embodiment is 150 ~ 500 μm.
Step 5: after making the drying of inner bag blank inwall enameling glaze slip, be transported in curing oven by inner bag blank and burn till, the firing temperature in curing oven is between 800 ~ 900 DEG C, and the duration is 4 ~ 10 minutes.Naturally namely enamel internal container of water-heater is obtained after cooling.
Obtained enamel internal container of water-heater is followed successively by enamel layer, adhesion layer and steel plate layer by inner side to outside.
Further, the carbon steel that the steel plate that the present embodiment makes 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%.
plastic inner container in Comparative Examples 2 Chinese invention patent application CN 103073798 A manufactured by embodiment 1
The formula of plastic inner container for water heater 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 described plastic inner container for water heater polypropylene material, comprises the following steps: 1) take various raw material in formula by the proportioning of aforementioned polypropylene composition; 2) raw material step 1) taken proportioning machine high speed mixture even mixture material; 3) by step 2) the mixture material double screw extruder extruding pelletization that obtains obtains Polypropylene composition for plastic inner container of water heater 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
Carry out the oxidation test of 100 h under the enamel material of enamel material of the present invention (obtaining according to embodiment 1-5 respectively) and Comparative Examples is placed in 1100 DEG C of high temperature, measure the oxidation weight gain of each enamel material when 40h and 100h respectively
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 Comparative Examples 1, * P < 0.05, * * P < 0.01;
Compared with Comparative Examples 2, #P < 0.05, ##P < 0.01.
As can be seen from Table 2, enamel material of the present invention has the difference of conspicuousness compared with Comparative Examples 1 in 40h oxidation weight gain and 100h oxidation weight gain, also there is the difference of conspicuousness compared with the material of Comparative Examples 2, wherein the oxidation weight gain of embodiment 2 and the enamel material corresponding to embodiment 4 is minimum, all has pole significant difference with the enamel material corresponding to Comparative Examples 1 or Comparative Examples 2.This shows, enamel material of the present invention for the preparation of after inner bag not only oxidation resistent susceptibility greatly strengthen relative 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, improve the security performance that inner bag uses.
embodiment 7 enamel material acid resistance of the present invention and mechanical shock resistance test
Take carbon steel as matrix material, be processed into the rectangular blocks of 40 mm × 20 mm × 2mm_, stand-by after the treatment process such as degreasing, pickling, neutralization, drying, use embodiment of the present invention 1-5 and the enamel material of Comparative Examples 1 and Comparative Examples 2 and the preparation method of enamel inner container of the present invention to prepare enamel inner container respectively, measure the acid resistance of enamel inner container, mechanical shock resistance and heatproof shock property performance.
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, make to test the acid resistance of the enamel material of embodiment of the present invention 1-5 and Comparative Examples 1 and Comparative Examples 2 with the following method, sample is first weighed up the lower weight of meter record, with the H of measuring cup note people 5% with assay balance
2s0
4solution, puts into sample, carries out level indicia.Boil 2h, the acid solution of boiling middle loss constantly uses l%H
2sO
4solution is supplemented to the height in stoste face.Taking-up examination is pretended, and naturally cools to room temperature. after drying, 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 quality after 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, the standards such as DEZ ~ MB 7.10.3 (enamel adherence detection method), Japanese Industrial Standards JIS-R4301 (1978) (the quality test method of enamelware) can be for reference.Carry out falling ball impact test with reference to European standard, select diameter to be 12.5 mm, 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 pieces of samples, mm.
Using said method to measure the mechanical shock resistance performance of the enamel material of embodiment of the present invention 1-5 and Comparative Examples 1 and Comparative Examples 2, carry out 5 parallel laboratory tests continuously, there is ballistic work during fracture in record enamel coating.
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 enamel layer is different with the coefficient of expansion of metal, the sharply change of temperature can produce pressure, tension respectively on enamel layer and metallic matrix, thus occurs that enamel layer is broken.As heat exchanger tube protective layer---enamel, in heatproof acute degeneration, difference variation is larger, and performance is better.Said method is used to measure the heatproof shock property of the enamel material of embodiment of the present invention 1-5 and Comparative Examples 1 and Comparative Examples 2, carry out 5 parallel laboratory tests continuously, maximum tolerable temperature when record enamel coating occurs 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 Comparative Examples 1, * P < 0.05, * * P < 0.01;
Compared with Comparative Examples 2, #P < 0.05, ##P < 0.01.
As can be seen from Table 2, compared with the enamel material of enamel material of the present invention and Comparative Examples 1 and Comparative Examples 2 plastic material, there is in mass loss rate, ballistic work, maximum tolerable temperature and the heatproof sudden turn of events temperature difference of conspicuousness.Be in particular in, enamel material described in this name has significantly or pole significant difference with the enamel material of Comparative Examples 1 in the improvement of These parameters, in ballistic work, maximum tolerable temperature and heatproof sudden turn of events temperature, have pole significant difference with the enamel material of Comparative Examples 2.Wherein embodiment 2 enamel material and the enamel material corresponding to embodiment 4 are more excellent in These parameters, are most preferred embodiment of the present invention.
In addition, the present invention is not limited to the above-mentioned embodiment enumerated, as long as it reaches the technique effect of invention with substantially identical means, all should belong to the protection domain of invention.
Claims (7)
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, for connecting enamel inner container (9) and pipe joint (6), described jockey comprises liner (8), retainer ring (4), sealing ring (10), liner (8) upper end is positioned at the discharge outlet place connecting enamel inner container (9) and is provided with the flanging (11) being 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) coordinated with boss (12), the discharge outlet place of enamel inner container (9) is located at by pipe joint (6), upper end and the liner (8) of retainer ring (4) 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, it is prepared by each component of following weight portion: silica 30 ~ 50 parts, cupric oxide 0.01 ~ 0.03 part, brium carbonate 3 ~ 8 parts, cobalt oxide 0.005 ~ 0.01 part, 5 ~ 10 parts, zinc oxide, calcium oxide is 1 ~ 3 part, sodium oxide molybdena is 3 ~ 5 parts, antimony oxide is 1 ~ 5 part, nickel oxide 0.5 ~ 2.5 part, titanium dioxide 1 ~ 3 part, 5 ~ 8 parts, calcite, kaolin 1 ~ 3 part, 3 ~ 8 parts, aluminium oxide, silicon powder 35 ~ 55 parts, soda ash 3 ~ 8 parts and boron oxide 0.5 ~ 2.0 part.
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, it 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 the time of water temperature lower than 60 DEG C, identifying unit judge Monitoring Data meet lower than 60 DEG C of durations more than 10 days time, output order is to output unit, output unit starts electrothermal tube heating after receiving instruction, stop heating after making water temperature reach 75 DEG C, thus reach the effect automatically killing the bacterium grown 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: silica 40 parts, cupric oxide 0.02 part, brium carbonate 5.5 parts, cobalt oxide 0.008 part, 8 parts, zinc oxide, calcium oxide are 2 parts, sodium oxide molybdena is 4 parts, antimony oxide is 3 parts, nickel oxide 1.5 parts, titanium dioxide 2 parts, 6 parts, calcite, kaolin 2 parts, 5.5 parts, aluminium oxide, silicon powder 40 parts, soda ash 5.5 parts and boron oxide 1.3 parts.
6. health type electric heater as claimed in claim 1, it is characterized in that, described enamel material its prepared by each component of following weight portion: silica 50 parts, cupric oxide 0.01 part, brium carbonate 8 parts, cobalt oxide 0.005 part, 10 parts, zinc oxide, calcium oxide are 1 part, sodium oxide molybdena is 5 parts, antimony oxide is 5 parts, nickel oxide 0.5 part, titanium dioxide 3 parts, 5 parts, calcite, kaolin 3 parts, 8 parts, aluminium oxide, silicon powder 35 parts, soda ash 8 parts and boron oxide 2.0 parts.
7. health type electric heater as claimed in claim 1, it is characterized in that, the preparation method of described enamel inner container comprises the steps:
1) preparation of enamel material: 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, ball mill fragmentation rear mistake 200 mesh sieve is used after cold quenching, can obtain enamel material of the present invention, wherein said brium carbonate quality purity is 98% or more;
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 enamel material 85 parts, clay 5 parts, 0.5 part, sodium carbonate, 2.5 parts, quartz, polyacrylamide 5.5 parts, dodecyl sodium sulfate 0.5 part, natrium nitrosum 0.4 part, borax 0.6 part;
3) the steel plate application of slip: the steel plate handled well is immersed 20-30min in glaze slip, after taking-up at 100 DEG C dry 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410421024.4A CN104197519B (en) | 2014-08-25 | 2014-08-25 | Healthy electric water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410421024.4A CN104197519B (en) | 2014-08-25 | 2014-08-25 | Healthy electric water heater |
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| CN104197519A CN104197519A (en) | 2014-12-10 |
| CN104197519B true CN104197519B (en) | 2015-05-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN113108466B (en) * | 2021-03-22 | 2022-06-14 | 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 |
|---|---|---|---|---|
| JPS589982A (en) * | 1981-07-07 | 1983-01-20 | Matsushita Electric Ind Co Ltd | Enamelled vessel body |
| CN100580333C (en) * | 2006-12-28 | 2010-01-13 | 海尔集团公司 | Water heater porcelain enamel inner bag and manufacturing method thereof |
| CN202141193U (en) * | 2011-06-01 | 2012-02-08 | 广东格美淇电器有限公司 | Antibacterial enamelled inner container of water heater |
| CN203586556U (en) * | 2013-12-03 | 2014-05-07 | 广东惠洁宝电器有限公司 | Pipe connector connection device for enamel linear of water heater |
| CN103787580B (en) * | 2013-12-13 | 2016-04-06 | 芜湖美的厨卫电器制造有限公司 | Enamel internal container of water-heater and enamel powdered frit |
| CN103922711B (en) * | 2014-04-01 | 2015-05-20 | 广东伊莱特电器有限公司 | Composite ceramic for inner container of rice cooker, and produced ceramic inner container and rice cooker |
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