Low-power instant electric water heater with small-volume water tank

An electric water heater, low-power technology, applied in the field of low-power instant electric water heaters, can solve the problems of high power supply requirements, high risk of fire, easy aging of lines, etc., and achieve flexible installation positions, low power of the whole machine, Effect of reducing installation cost

Pending Publication Date: 2018-02-27
GUANDDONG JIBAO ELECTRICAL APPLIANCE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Instantaneous electric water heaters need a line power supply capable of carrying large currents. The disadvantage is that the power is too large, and the requirements for line power supply are high. Generally, households need special wiring. The lines are prone to aging after long-term use, and the risk of fire is high.

Method used

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  • Low-power instant electric water heater with small-volume water tank
  • Low-power instant electric water heater with small-volume water tank
  • Low-power instant electric water heater with small-volume water tank

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0031] see figure 1 , a low-power instant electric water heater with a small volume water tank, including a water tank 1, an outer circulation heating assembly and a one-way valve 5, the water tank 1 is provided with a hot water outlet 12 and a circulating water inlet 13, and the circulation The water inlet port 13 constitutes the circulating water inlet of hot water and the supplementary water inlet of the water tank 1, the hot water outlet port 12, the external circulation heating component, the one-way valve 5 and the circulating water inlet port 13 are sequentially connected by pipelines to form an external circulation The heating circuit, the hot water outlet 12, and the external circulation heating component are sequentially connected through pipelines to form a water supply channel.

[0032] The temperature detection device 21 can be arranged on the outer circulation heating circuit and the water supply channel, which can effectively improve the accuracy of temperature ...

no. 2 example

[0050] see figure 2 The main difference between this low-power instantaneous electric water heater with a small volume water tank and the first embodiment is that the water tank 1 is provided with a cold water inlet 11, a hot water outlet 12 and a circulating water inlet 13. , the three ports are respectively located in different positions of the water tank 1, so that the internal water temperature of the water tank 1 is more even in the non-water supply state, and the cold water replenished into the water tank 1 will not directly interfere with the outlet water temperature of the hot water outlet 12 in the water supply state.

[0051] In this embodiment, the temperature detection device 21 is only provided at the water outlet of the external circulation heating assembly. Under the non-water supply state (including two states of conventional heating and idle heating), the external circulation heating circuit can continue to work until the aforementioned temperature detection d...

no. 3 example

[0054] see image 3 The main difference between this low-power instant electric water heater with a small volume water tank and the first embodiment is that the check valve 5 is an electrically controlled solenoid valve, and the water supply channel is provided with a valve for detecting its water flow rate. The flow detection device 8, the flow detection device 8 is electrically connected with the electric control solenoid valve through the electric power control device 7, and when the flow detection device 8 detects that there is a water flow in the water supply channel, it sends a signal to the electric control solenoid valve to control its closure, so that The water heater can supply water stably, and the control precision of the electronically controlled solenoid valve is higher.

[0055] The water outlet end and the water inlet end of the outer circulation heating assembly are equipped with a temperature detection device 21, the temperature of the water inlet end of the ...

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PUM

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Abstract

The invention discloses a low-power instant electric water heater with a small-volume water tank. The low-power instant electric water heater comprises the water tank, an outer circulating heating assembly and a one-way valve; the water tank is provided with a cold water inlet end, a hot water outlet end and a circulating water inlet end; the hot water outlet end, the outer circulating heating assembly, the one-way valve and the circulating water inlet end are sequentially connected through pipelines to form an outer circulating heating loop; the hot water outlet end and the outer circulatingheating assembly are sequentially connected through pipelines to form a water supplying channel; and temperature detecting devices used for sensing the water temperature are arranged on the outer circulating heating assembly and / or in the water tank. According to the low-power instant electric water heater with the small-volume water tank, due to the fact that the outer circulating heating assembly is arranged outside the water tank, a mode of outer circulating heating is adopted, and the water tank and the outer circulating heating assembly are of a split structure, so that real water-electricity separation is achieved, not only are safety and reliability better achieved, but also maintenance or repairing for the outer circulating heating assembly is facilitated, and forming of incrustation in the water tank is advantageously reduced through the structure mode.

Description

technical field [0001] The invention relates to an electric water heater, in particular to a low-power instantaneous electric water heater with a small volume water tank. Background technique [0002] At present, existing electric water heaters mainly include water storage electric water heaters and instantaneous electric water heaters. [0003] The water storage type electric water heater needs to be equipped with a large-volume water tank. The disadvantage is that it needs to occupy a very large space for installation, and the installation and maintenance are very inconvenient. , Moreover, its heating element is in direct contact with water, there is a very high risk of leakage, there is an extremely serious safety hazard, the problem of leakage cannot be eliminated, leakage accidents occur every year, and because the internal high temperature of the electric heating tube makes the surface of the electric heating tube A large amount of scale is produced, which can acceler...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H1/14F24H9/18F24H9/20F24H9/00
CPCF24H1/0018F24H1/142F24H9/0005F24H9/1818F24H9/2028F24H2250/02
Inventor 卢德纯
Owner GUANDDONG JIBAO ELECTRICAL APPLIANCE TECH CO LTD
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