Hot water generator

A generator and hot water technology, applied in water heaters, fluid heaters, household heating, etc., to achieve the effect of enhancing the ability of hot water temperature to rise beyond the preset temperature

Active Publication Date: 2009-12-16
TLV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned common hot water generator has the following disadvantages: when the drawing of hot water is stopped, the hot water in the heat exchanger is only driven by the circulation pump to flow through the hot water extraction pipe, the circulation pipe, and the cold water inlet pipe However, it flows back into the heat exchanger, thus, the ability to prevent the temperature of hot water from rising beyond the preset temperature is poor, and when the hot water pumping is restarted, higher temperature hot water with a temperature higher than the preset temperature may be drawn out

Method used

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Embodiment Construction

[0010] A kind of embodiment of the present invention (referring to figure 1 ) is described, and this implementation mode is used as a specific example of the above-mentioned technical solution. The bellows heat exchanger 1 is connected with the steam supply pipe 2 , the drain pipe 3 , the cold water inlet pipe 4 , and the hot water extraction pipe 5 . Starting from the upstream, the steam supply pipe 2 is sequentially connected with an on / off valve 6 , a gas-liquid separator 7 , an electric valve 8 , a safety valve 9 , and a control valve 10 . A heater header tank 11 is connected to the discharge pipe 3 . The heater header tank 11 temporarily stores drain water discharged from the heat exchanger 1 . The heater water collection tank 11 is connected with the drain inflow pipe 12 , and the drain inflow pipe 12 is sequentially connected with a check valve 13 and a drain supply pressure pump 14 from upstream. A check valve 13 allows fluid to flow from the heater sump 11 to the d...

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Abstract

A hot water generator which has a high ability to prevent the hot water temperature from rising above a preset temperature when withdrawal of hot water is stopped. A hot water withdrawal pipe (5) of a heat exchanger (1) and a cold water intake pipe (4) thereof are connected through a circulating pipe (40) having a circulating pump (39). A cold water reservoir (42) is provided in the heat exchanger (1) on its cold water intake pipe (4) side. When withdrawal of hot water is stopped, the circulating pump (39) forces hot water in the heat exchanger (1) to circulate through the cold water reservoir (42), cold water intake pipe (4), circulating pipe (40) and hot water withdrawal pipe (5) back to the heat exchanger (1) or the circulating pump (39) forces hot water in the heat exchanger (1) to circulate through the hot water withdrawal pipe (5), circulating pipe (40), cold water intake pipe (4) and cold water reservoir (42) back to the heat exchanger (1). The temperature of circulating hot water is lowered by the cold water reservoir (42) so that the ability to prevent the hot water temperature from rising above a preset temperature is enhanced.

Description

technical field [0001] The present invention relates to a hot water generator that generates hot water by heating cold water with steam heat, and more particularly, the present invention relates to a hot water generator that can Prevents the hot water temperature from rising above the preset temperature. Background technique [0002] Patent document JP-A-2002-130821 discloses a general hot water generator. In this device, the hot water extraction pipe and the cold water inlet pipe of the heat exchanger are connected through a circulation pipe, and the circulation pipe has a circulation pump. When the hot water extraction is stopped, the circulation pump forces the hot water in the heat exchanger to circulate. It flows through the hot water extraction pipe, the circulation pipe, the cold water inlet pipe, and finally returns to the heat exchanger. When the extraction of hot water is stopped, the circulation pump forces the hot water in the heat exchanger to circulate throug...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F24H1/10F24H9/00
CPCY02B30/16F24D1/005F24D1/08F24D19/1051Y02B30/563Y02B30/00F24H1/00F24H1/10F24H9/20
Inventor汤本秀昭
OwnerTLV CO LTD