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Electric bare wire continuous heater and method for controlling same

A continuous, heater technology, used in water heaters, fluid heaters, electric heating devices, etc.

Active Publication Date: 2017-04-26
格德斯控股两合公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Disadvantageously, with the conductivity measurement of the continuous heater known from document DE 84 28 975 only a lack of water is detected in order to switch off the heating coil in this case and thereby prevent overheating of the heating coil (which may be accompanied by destruction of the heating coil)

Method used

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  • Electric bare wire continuous heater and method for controlling same
  • Electric bare wire continuous heater and method for controlling same
  • Electric bare wire continuous heater and method for controlling same

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0028] exist Figures 1 to 6 The bare wire continuous heaters 10 according to the present invention are schematically shown in respectively. The bare wire continuous heater 10 includes a channel assembly 11 . The channel assembly 11 includes a water inlet channel 12 and a water outlet channel 13 . The water inlet channel 12 is set up to be connected to an external (not shown in the figure) first water line for supplying water, while the water outlet channel 13 is set up to be connected to an external (also not shown in the figure) outlet The second water pipeline of water. In other words, the water inlet channel 12 is used for the inflow of water to be heated, while the water heated in the bare-wire continuous heater 10 is withdrawn or conducted out of the water outlet channel 13 . The water inlet channel 12 and the water outlet channel 13 are preferably electrically conductive, for example made of an electrically conductive metal, and are each electrically conductively con...

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PUM

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Abstract

The invention relates to an electric bare-wire continuous heater and a method for controlling the same, comprising: a channel assembly with an electrically conductive water inlet channel and a water outlet channel electrically conductively connected to ground potential, the channel assembly Comprising at least one non-conductive channel for guiding water, at the ends of which channel is respectively arranged a water inlet channel and a water outlet channel; an electric bare wire heating device for heating water flowing through the channel assembly is provided; an electric bare wire heating device is provided for regulating the bare Electronic control of the heating power of a wire heating device, wherein the control device comprises conductivity measuring means for determining the conductivity value of the water flowing through the channel assembly and is characterized in that the control device comprises means set up for determining the conductivity value based on the conductivity value and at least A predetermined design-dependent device parameter determines an evaluation unit for an assumed leakage current value and the control device is adapted to reduce the heating power of the bare wire heater as soon as the assumed leakage current value exceeds a predetermined leakage current threshold value.

Description

technical field [0001] The invention relates to an electric bare-wire continuous heater (Blankdrahtdurchlauferhitzer) for preparing hot water, comprising: a water inlet channel (Wasserzulaufkanal) with an to an external, first water supply line) and an electrically conductive water discharge channel (Wasserablaufkanal) (Wasserablaufkanal) that is electrically conductive and connected to ground potential (which is set up to be connected to an external, second water line that leads out of water) A channel assembly, wherein the channel assembly comprises at least one non-conductive channel leading water, at the channel ends of which a water inlet channel and a water outlet channel are respectively arranged; an electrical bare wire heating for heating the water flowing through the channel assembly is provided device; an electronic control device for regulating the heating power of the bare wire heating device is provided, wherein the control device includes a conductivity measurin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H1/10F24H9/18F24H9/20
CPCF24H1/103F24H9/2028H05B1/0283G01R31/52F24H15/215F24H15/37F24H15/407F24H15/20F24H15/219
Inventor J.哈格曼H-J.冯赛斯C.科赫
Owner 格德斯控股两合公司
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