Novel anti-scaling electric heating pipe and water heater

A technology for electric heating tubes and water heaters, applied in fluid heaters, ohmic resistance heating, ohmic resistance heating components, etc., can solve the problems of electric heating tube heat transfer differences, inapplicability, and large limitations, and achieve increased contact The effect of saving area, saving electric energy and improving heating speed

Pending Publication Date: 2018-04-06
QINGDAO HAIER NEW ENERGY ELECTRIC APPLIANCE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this structure has the problem that the scale cannot be completely cleaned. The temperature-sensitive memory telescopic structure can only reach the other end of the electric heating tube in the later stage of heating, but in the process of gradually heating the water, the scale has already attached to this end, and its The attached thickness is much thicker than the installation end of the temperature-sensing memory telescopic structure, and the scale gradually thickens from the installation end of the temperature-sensing memory telescopic structure to the other end. For the temperature-sensing memory telescopic structure, the deformation process does not The purpose of descaling the entire electric heating tube cannot be completed, and the heat transfer at both ends of the electric heating tube is quite different, which wastes electric energy. Furthermore, since the expansion and contraction is reflected in the linear shape, other shapes will affect the scope of its expansion and contraction. The structure cannot be applied to U-shaped or special-shaped electric heating tubes, which has great limitations

Method used

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  • Novel anti-scaling electric heating pipe and water heater
  • Novel anti-scaling electric heating pipe and water heater
  • Novel anti-scaling electric heating pipe and water heater

Examples

Experimental program
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Effect test

Embodiment 1

[0062] Such as figure 1 , figure 2 As shown, a new scale-inhibiting electric heating tube described in this embodiment includes a mounting base 10, an electric heating tube 20, a temperature-sensitive expansion wire 30, and a conductive sheet 11, wherein the electric heating tube 20 is a linear electric heating tube , and both ends are fixed, and the temperature-sensitive expansion wire 30 is tightly wound on the outer wall of the electric heating tube 20. The thread space includes two kinds of spaces. The gap between d2 and d2 is set at intervals, the two ends of the temperature-sensitive expansion wire 30 are respectively fixed on the mounting seats 10 on both sides, the two ends of the electric heating tube 20 are respectively fixed on the mounting seats 10 on both sides, and the mounting seats 10 on both sides are respectively fixed. Conductive sheets 11 are provided on the top, and the conductive sheets 11 are connected to the electric heating tube 20. The outer wall of...

Embodiment 2

[0066] Such as image 3 As shown, a new anti-scaling electric heating tube described in this embodiment includes two mounting bases 10, a U-shaped electric heating tube 20, a temperature-sensitive expansion wire 30, two conductive sheets 11, and two conductive sheets 11 They are respectively installed on two mounting bases 10, and are respectively electrically connected to the two ends of the electric heating tube 20. The temperature-sensitive expansion wire 20 is tightly wound on the outer wall of the electric heating tube 20, and the thread formed by the temperature-sensitive expansion wire 20 There is a gap between them, and the space distance is d1a2>a3, thermal expansion The induction temperature of silk is 50°~450°C.

[0067] After electrification, the temperature-sensitive expansion wire 20 will be heated and expanded, and the temperature-sensitive expansion wires d1, d2, and d3 respectively correspond to the stretching amounts △L1, △L2, and △L3, which will make △L1>△L...

Embodiment 3

[0071] Such as Figure 5 As shown, a new scale-inhibiting water heater described in this embodiment includes a tank body 40, a special-shaped electric heating tube 20 located in the tank body 40, a mounting seat 10 for installing the electric heating tube 20, and a temperature-sensitive expansion wire 30. The two ends of the temperature-sensitive expansion wire 30 are respectively fixed on the two mounting bases 10, the temperature-sensitive expansion wire 20 is spirally wound on the outer wall of the electric heating tube 30, and there is a gap between the threads formed by the temperature-sensitive expansion wire 20 , and includes gaps of various pitches, wherein, gap pitches of multiple intervals can be set, for example, d1≠d2≠d3≠d4≠d5≠d6≠d7, or d1≠d2, d2≠d3≠d4, attached Figure 5 The distance dn of the middle gap only distinguishes different combinations, and it should be understood by those skilled in the art that it is only necessary to leave a gap between the threads fo...

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Abstract

The invention discloses a new scale-suppressing electric heating tube and a water heater. A temperature-sensitive expansion wire is added to the electric heating tube, and the two ends of the temperature-sensitive expansion wire are respectively fixed, and the temperature-sensitive expansion wire is fixed on the electric heating tube or at the end of the electric heating tube. On the mounting seat of the head, the temperature-sensitive expansion wire is spirally wound on the outer wall of the electric heating tube, and there is a gap between the threads formed by the temperature-sensitive expansion wire, and the distance between the gaps will change when the temperature-sensitive expansion wire is deformed. The temperature-sensitive expansion wire of the present invention will deform with the temperature, and gradually close the gap formed by the spiral, so that the scale will adhere to the temperature-sensitive expansion wire. During the deformation, the threads will be displaced, and scratches will be formed on the surface of the electric heating tube to achieve the purpose of double scale suppression. At the same time, the temperature-sensitive expansion wire is used as the heat transfer medium, which indirectly increases the contact area between the electric heating tube and water, and improves the heating efficiency. speed and save energy.

Description

technical field [0001] The invention belongs to the field of electric heating water heaters, and in particular relates to a novel scale-suppressing electric heating tube and a water heater. Background technique [0002] There are a lot of calcium ions and magnesium ions in the water. After the water is boiled, part of the water will evaporate, and the calcium and magnesium ions will undergo a chemical reaction. The calcium sulfate gypsum that is not easy to dissolve is the precipitation of calcium sulfate containing crystal water. The original dissolved carbonic acid Calcium hydrogen and magnesium bicarbonate decompose in boiling water, release carbon dioxide, and become insoluble calcium carbonate and magnesium carbonate, which also precipitate, and what precipitates is scale. [0003] In the application of electric water heaters, due to the formation of scale, it will adhere to the electric heating tube and accumulate to form a scale layer. However, the thermal conductivit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/22H05B3/02F24H9/18
CPCH05B3/22F24H9/18H05B3/02
Inventor 杜顺祥赵增奎陈炳泉
Owner QINGDAO HAIER NEW ENERGY ELECTRIC APPLIANCE
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