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Heat quantity reclaiming type electric heater

An electric heater and heat recovery technology, applied in water heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of large heat load of stainless steel water pipes, easy scaling of water pipes, and fire hazards, so as to achieve no fire Hidden danger, no fire hazard, fast heat transfer effect

Inactive Publication Date: 2008-01-30
黄樟焱
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the outlet water temperature of this structure is high, the thermal resistance is relatively large, and the surface temperature of the heater often exceeds 200°C, which has fire hazards and high energy consumption. In addition, the heat load of the stainless steel water pipe is relatively large, and the water pipe is easy to scale

Method used

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  • Heat quantity reclaiming type electric heater
  • Heat quantity reclaiming type electric heater
  • Heat quantity reclaiming type electric heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: As shown in Fig. 1, Fig. 2 and Fig. 3, a heating wire (2) is arranged on the outside of the high-temperature-resistant glass water pipe (1), and an insulating and heat-insulating layer (3) is arranged on the outside of the heating wire (2). A water jacket composed of an inner cylinder (4) and an outer cylinder (5) is arranged on the outer side of the insulating heat insulation layer (3), and a water inlet (6) and an exhaust port (11) are arranged on the upper part of the water jacket, and the outer cylinder ( 5) The lower end is provided with a head (17), the head (17) is provided with a sewage outlet (18), and the lower end of the water pipe (1) and the lower end of the inner cylinder (4) are provided with a valve to prevent water from entering the cavity where the heating element is located. The sealing ring (15) of the body, the bottom of the sealing ring (15) is provided with a water channel (16), the top of the sealing ring (15) and the bottom of the h...

Embodiment 2

[0021] Shown in conjunction with Fig. 5, present embodiment is a kind of simplification to embodiment 1, and in this embodiment, inner cylinder and water pipe are a composite housing (28) that is connected as one at its lower end, in this housing The lower part is provided with an annular gasket (30), the lower end of the annular gasket (30) is provided with a water channel (32), and a ceramic ring (29) is arranged in the inner cavity of the lower part of the composite casing (28). Due to the presence of the ceramic ring, the distance between the heating wire and the annular pad (30) increases, so when the electric heater in this embodiment is energized and heated, the temperature of the annular pad (30) will not be too high. The ring pad (30) is used to support the composite shell (28) and the water channel (32) thereon is also a channel for water to flow from the water jacket to the water pipe. Other requirements of this embodiment are the same as those of Embodiment 1.

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Abstract

An electric heater of heat recovery comprises a nonmetallic water pump, a heating element arranged outside the nonmetallic water pump, a water jacket arranged outside the heating element, the inner drum of the water jacket is sealed and connected with the water pump at lower end, the lower end of the outer drum of the water jacket is equipped with an end plate, a water inlet of a heater is arranged on the upper part of the water jacket, and the water outlet of the heater is the upper end open of the nonmetallic water pump. The electric heater is mainly matched with a water-drinking machine of no hot penetration for heating flowing drinking water, the invention is characterized by high water temperature, low temperature of the outer surface of the heater (about 50 DEG C), non fire threat, energy conservation, scale uneasily producing. The electric heater can be matched with other similar products for heating flowing sanitation liquor.

Description

Technical field [0001] The invention relates to an electric heater, in particular to an electric heater used for heating flowing water and recovering heat. Background technique [0002] At present, in the water dispenser industry, there are two types of known electric heaters for heating flowing water. [0003] One type of structure is that the inside of the wall is flowing water, the semiconductor heating element is arranged outside the wall, and the wall is made of non-metallic material with good insulation. Due to the low heating temperature of the semiconductor in this structure, when the water temperature is high, the power of the semiconductor will automatically drop, which is the so-called temperature self-limiting characteristic, so the heater generally does not need to be provided with an insulating layer. The outlet water temperature of the electric heater with this structure is relatively low, usually 70°C to 80°C, which cannot meet the user's requirement for dri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H1/14
Inventor 黄樟焱
Owner 黄樟焱
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