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A water heater and anti-dry technology, which is applied to fluid heaters, lighting and heating equipment, etc., can solve the problems that cannot absolutely prevent dry burning, and achieve the effect of avoiding the risk of equipment and personal damage and avoiding accidents
Active Publication Date: 2016-04-20
SHANGHAI YULING THERMAL CONTROL TECH CO LTD
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However, no matter how fast the response speed of the body expansion thermostat is, it can only make a protective response action after dry burning generates high temperature, and it cannot absolutely prevent the occurrence of dry burning.
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Embodiment 1
[0035] The present invention proposes a kind of anti-dry water heater, and it comprises following several parts:
[0036] Shell 1, power connector 2, water tank 3, two float switches 4, electric heating tube 5, circuit 6 for judging the state of two float switches, and alarm device 7;
[0037] Wherein the shell 1 isolates the whole device from the outside world, guarantees the safety of the person and other equipment externally, and internally fixes and protects the safety of the components of the water heater;
[0038] The power connector 2 is used to introduce the electricity required for the water heater to work, and can be a terminal or a plug;
[0039] Water tank 3 stores and holds water to be heated and being heated;
[0040] The two float switches 4 include a high water level float switch 41 and a low water level float switch 42, both of which are installed on the water tank 3 to sense and report two states of high water level and low water level respectively;
[0041...
Embodiment 2
[0047] A kind of anti-dry water heater, it comprises following several parts:
[0048] Shell 1, power connector 2, water tank 3, two float switches 4, electric heating tube 5, circuit 6 for judging the state of two float switches, and alarm device 7;
[0049] Wherein the shell 1 isolates the whole device from the outside world, guarantees the safety of the person and other equipment externally, and internally fixes and protects the safety of the components of the water heater;
[0050] The power connector 2 is used to introduce the electricity required for the water heater to work, and can be a terminal or a plug;
[0051] Water tank 3 stores and holds water to be heated and being heated;
[0052] The two float switches 4 include a high water level float switch 41 and a low water level float switch 42, both of which are installed on the water tank 3 to sense and report two states of high water level and low water level respectively;
[0053] The electric heating tube 5 is in...
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Abstract
The invention relates to an anti-dry burning water heater. The anti-dry burning water heater comprises a shell (1), a power connector (2), a water box (3), two float switches (4), an electrical heating pipe (5), a circuit (6) for judging the states of the two float switches and a warning device (7). The anti-dry burning water heater provided by the invention can provide the technology that two float switches are utilized to avoid dry burning of the electrical heating pipe aiming to the danger of the electric water heater easy for dry burning, the more important point is to provide a method to warn that one of the two float switches fails based on the conflict of the two float switches, and the risk of high possibility of equipment and human injure caused by an electric heatingpipe of the water heater is thoroughly avoided.
Description
technical field [0001] The invention relates to the technical field of electric heating of water, in particular to a water heater for preventing dry heating. Background technique [0002] From the perspective of safety and service life, the biggest danger of electric water heaters is dry heating. Dry burning may damage the equipment in light cases, and may cause fire and personal injury in severe cases. Chinese utility model patents 201120039913.6 and 200920313815.X both disclose a kind of anti-boiling device using a float switch. Considering the risk that a float switch may fail, Chinese patent 200920119083.1 discloses a "secondary anti-dry" technology for temperature control and float switch protection. Especially in Chinese patent 200720149269.1, the inventor not only analyzed the reason why a float switch cannot completely avoid dry burning, but also analyzed the common shortcomings of using thermal elements to prevent dry burning, that is, slow response and poor relia...
Claims
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Application Information
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