公开(公告)号：US20170030664A1

公开(公告)日：2017-02-02

申请号：US15213701

申请日：2016-07-19

Applicant: NORITZ CORPORATION

Inventor： Masato DOYAMA ,  Tomofumi KINUGASA ,  Masamitsu ISHIKADO ,  Makoto KUSAKABE

IPC: F28F27/00 ,  F24H1/14 ,  F24H8/00 ,  F28F19/00

CPC classification number: F28F27/00 ,  F24H1/145 ,  F24H8/00 ,  F24H9/2035 ,  F28D7/087 ,  F28D7/1615 ,  F28D21/0007 ,  F28F1/325 ,  F28F19/00 ,  Y02B30/102

Abstract: A hot water supply device (1) includes: a fin and tube type heat exchanger (17) for aplying heat to water with combustion gas; a temperature detection means (32) for detecting an exhaust temperature after heat exchange by the heat exchanger (17); and a determination means that determines that scale is deposited within the heat exchange tubing (27) of the heat exchanger (17) if the exhaust temperature detected by the temperature detection means (32) is higher than a set temperature.

Abstract translation: 热水供应装置（1）包括：翅片和管式热交换器（17），用于利用燃烧气体对水进行加热; 用于检测由热交换器（17）进行热交换后的排气温度的温度检测装置（32）。 以及如果由温度检测装置（32）检测到的排气温度高于设定温度，则确定装置确定标尺沉积在热交换器（17）的热交换管道（27）内。

公开(公告)号：US20150338130A1

公开(公告)日：2015-11-26

申请号：US14663350

申请日：2015-03-19

Applicant: NORITZ CORPORATION

Inventor： Masato DOYAMA ,  Eiji KANKI ,  Yu FUJIMOTO ,  Shingo TATEISHI

IPC: F24H9/20 ,  F24H1/14

CPC classification number: F24H9/2035 ,  F24D19/0092 ,  F24H1/145 ,  F24H9/0042 ,  F28F27/00

Abstract: A hot water supply device 1 includes a fin-and-tube type heat exchanger (b 21) that applies heat to fresh water with combustion gases, and a heat exchanger casing (b 22) for housing the heat exchanger (b 21), and in order to be able reliably to determine by a simple method whether the hot water supply device is clogged by lime scale, there are provided a temperature detector (b 31) for detecting the surface temperature of the heat exchanger casing (b 22) and a control unit (b 7) that determines that scale has built up in the heat exchange tubing (b 27) of the heat exchanger (b 21) when the temperature detected by this temperature detector (b 31) is greater than a set temperature.

Abstract translation: 热水供给装置1包括利用燃烧气体对淡水进行热量的翅片管式热交换器（b 21）和用于容纳热交换器（b21）的热交换器壳体（b22），以及 为了能够通过简单的方法可靠地确定热水供应装置是否被石灰垢堵塞，提供了一种用于检测热交换器壳体（b 22）的表面温度的温度检测器（b 31）和 控制单元（b 7），当由该温度检测器（b 31）检测到的温度大于设定温度时，确定该热交换器（b 21）的热交换管（b 27）中的氧化皮已经累积。