Water heating device, preparation method thereof and method for removing scale from water heating device
A water heating device and a scale technology, which are applied in cleaning methods and utensils, lighting and heating equipment, fluid heaters, etc., and can solve problems such as the need for further research on scale removal
Active Publication Date: 2020-11-24
GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD +1
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Therefore, the removal of scale on water heating devices needs to be further studied
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1- Embodiment 7
[0056] The method for preparing the hydrophobic coating is:
[0057] Step 1: Sandblast the inner wall of the main body with 80 mesh glass sand or corundum sand in a sandblasting machine to form a rough surface;
[0058] Step 2: Put the rough surface obtained in the previous step into an ultrasonic cleaning tank filled with water for cleaning, then place it in an oven to dry the water, keep the temperature of the rough surface at 50-100°C, and spray paint;
[0059] Step 3: Under the condition of 280-330 degrees Celsius, cure and sinter the sprayed paint body for 10-15 minutes.
[0060] See Table 1 for the test parameters in the preparation methods of Examples 1-7.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| thermal conductivity | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| water contact angle | aaaaa | aaaaa |
Login to View More
Abstract
The invention provides a water heating device and a preparation method thereof and a method for cleaning water scale in the water heating device. The water heating device comprises a body and a hydrophobic coating; a heating space is limited in the body; and the hydrophobic coating is arranged on the inner wall of the body, wherein the coefficient of thermal expansion of the hydrophobic coating isless than the coefficient of thermal expansion of the water scale, and the difference between the coefficient of thermal expansion of the hydrophobic coating and the coefficient of thermal expansionof the water scale is greater than or equal to 2.5*10<-6> degrees. The difference between the coefficient of thermal expansion of the hydrophobic coating and the coefficient of thermal expansion of the water scale is large, under the condition of burning without water, pulse water current is used for washing, the water scale can be cleaned completely, the water heating device cannot be damaged, healthy safety problems cannot be caused, the service life of the water heating device can be effectively prolonged, the water contacting angle of the hydrophobic coating is large, the bonding force andthe adhering area of the water scale on the hydrophobic coating are greatly reduced, generation of the water scale can be reduced, and cleaning of the water scale can be easier.
Description
technical field [0001] The invention relates to the technical field of electrical appliances, in particular to a water heating device, a preparation method thereof and a method for removing scale in the water heating device. Background technique [0002] During the long-term operation of steam generators, boilers, electric heating devices and other water heating devices, due to the Ca in water 2+ , Mg 2+ Waiting for some inorganic salts and other organic components (such as bacterial residues, grease, etc.), will cause a layer of scale to form on the inner wall of the water heating device. The accumulation of scale to a certain extent will affect the heating efficiency of the water heating device, and then affect the performance and service life of the water heating device, and will also bring certain safety hazards. Taking the steam generator as an example, the heat transfer efficiency may be reduced due to the scale on the surface of the heating device, so that the tempe...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F24H9/00B08B9/08
CPCB08B9/08F24H9/0042
Inventor 熊玉明徐前区毅成
Owner GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD