Method of operating steam boiler
    1.
    发明授权
    Method of operating steam boiler 有权
    蒸汽锅炉的运行方法

    公开(公告)号:US09352993B2

    公开(公告)日:2016-05-31

    申请号:US13049493

    申请日:2011-03-16

    摘要: Boiler water is heated in a steam boiler while feed water, which has a hardness of 5 mg CaCO3/L or less and is used as the boiler water, is supplied to the steam boiler. A part of the boiler water is appropriately disposed of. A chemical aqueous solution containing an alkaline metal silicate, an alkaline metal hydroxide and at least one kind of scale preventive agents of ethylenediamine tetraacetate, and its alkaline metal salt, is supplied to the feed water so that a concentration of the scale preventive agent is at least 1.5 mol equivalent times relative to the hardness of the feed water. In the steam boiler, a condensation rate of the boiler water is set so that the concentration of the scale preventive agent in the boiler water is 40 mg EDTA/L or less.

    摘要翻译: 锅炉水在蒸汽锅炉中进行加热,同时将具有5mg CaCO3 / L或更低的硬度并用作锅炉水的给水供应给蒸汽锅炉。 一部分锅炉水被适当处理。 将含有碱金属硅酸盐,碱金属氢氧化物和至少一种乙二胺四乙酸盐的防垢剂及其碱金属盐的化学水溶液供给给水,使防垢剂的浓度在 相对于给水的硬度至少为1.5摩尔当量。 在蒸汽锅炉中,锅炉水的冷凝速率设定为锅炉水中防垢剂的浓度为40mg EDTA / L以下。

    Method of determining chelating agent and determination kit for chelating agent
    2.
    发明申请
    Method of determining chelating agent and determination kit for chelating agent 审中-公开
    螯合剂的测定方法和螯合剂的测定试剂盒

    公开(公告)号:US20070231920A1

    公开(公告)日:2007-10-04

    申请号:US11727130

    申请日:2007-03-23

    IPC分类号: G01N31/16

    CPC分类号: G01N31/16

    摘要: The concentration of a water treating agent can be simply understood on site where thermal equipment is placed. A method of determining a chelating agent according to the present invention includes the steps of: collecting a water sample; adding a first chemical solution containing a metal indicator and a second chemical solution containing a pH adjuster to the collected water sample, respectively; dropping a third chemical solution which contains a metal salt that causes a change in color of the metal indicator into the water sample added with the first chemical solution and the second chemical solution, followed by counting the number of droplets required for the water sample to change color thereof; and determining a concentration of a chelating agent in the water sample on the basis of the number of droplets of the third chemical solution. A kit for determining a chelating agent according to the present invention includes: a first container that reserves a first chemical solution containing a metal indicator; a second container that reserves a second chemical solution containing a pH adjuster; and a third container that reserves a third chemical solution containing a metal salt that causes a change in color of the metal indicator.

    摘要翻译: 可以在放置热设备的场所简单了解水处理剂的浓度。 根据本发明的确定螯合剂的方法包括以下步骤:收集水样品; 向收集的水样品中分别加入含有金属指示剂的第一化学溶液和含有pH调节剂的第二化学溶液; 滴入含有金属盐的第三化学溶液,其导致金属指示剂的颜色变化到加入第一化学溶液和第二化学溶液的水样品中,随后计算水样品变化所需的液滴数 颜色 并且基于第三化学溶液的液滴数量确定水样品中螯合剂的浓度。 根据本发明的用于测定螯合剂的试剂盒包括:第一容器,其保留含有金属指示剂的第一化学溶液; 保留含有pH调节剂的第二化学溶液的第二容器; 以及第三容器,其保留含有导致金属指示剂的颜色变化的金属盐的第三化学溶液。

    Method of supply amount management of water treating agent
    3.
    发明申请
    Method of supply amount management of water treating agent 失效
    水处理剂供应量管理方法

    公开(公告)号:US20070227978A1

    公开(公告)日:2007-10-04

    申请号:US11727113

    申请日:2007-03-23

    IPC分类号: C02F5/12

    摘要: To simply and accurately determine the concentration of a water treating agent in thermal equipment upon management of a supply amount of the water treating agent, a method of controlling a supply amount of a water treating agent according to the present invention includes the steps of: supplying a water treating agent containing a scale inhibitor selected from chelating agents to a water-supply system of thermal equipment; collecting a water sample from the thermal equipment; quantitatively determining the scale inhibitor in the collected water sample; and determining a concentration of the water treating agent in the thermal equipment on the basis of a quantitative value of the scale inhibitor.

    摘要翻译: 为了在管理水处理剂的供给量时简单且准确地确定热设备中的水处理剂的浓度,根据本发明的控制水处理剂的供给量的方法包括以下步骤: 含有选自螯合剂的防垢剂的水处理剂加热到热设备的供水系统; 从热设备收集水样; 定量测定收集水样中的阻垢剂; 并根据阻垢剂的定量值确定热设备中的水处理剂的浓度。

    Composition for measuring concentration of residual chlorine
    4.
    发明申请
    Composition for measuring concentration of residual chlorine 审中-公开
    用于测量残留氯浓度的组成

    公开(公告)号:US20070224691A1

    公开(公告)日:2007-09-27

    申请号:US11710523

    申请日:2007-02-26

    IPC分类号: G01N33/00

    摘要: The present invention provides a composition for measuring residual chlorine concentration in the sample water, which is an aqueous solution comprising a specific benzidine compound, e.g., N,N′-bis(2-sulfoethyl)-3,3′-dimethylbenzidine disodium salt, and a surfactant, wherein the content of the surfactant is set to be 0.5% by weight or more and to be 0.5 weight-fold or more of the content of the benzidine compound, and the pH is adjusted to be in the acidic region.This composition can prevent the benzidine compound from crystallizing in the aqueous solution under the low temperature condition such as in winter season or the like.

    摘要翻译: 本发明提供了一种用于测量样品水中残留氯浓度的组合物,其为包含特定联苯胺化合物的水溶液,例如N,N'-双(2-磺基乙基)-3,3'-二甲基联苯胺二钠盐, 和表面活性剂,其中表面活性剂的含量设定为0.5重量%以上,为联苯胺化合物含量的0.5重量倍以上,pH调节为酸性区域。 该组合物可以防止联苯胺化合物在冬季等的低温条件下在水溶液中结晶。

    Composition for measuring residual chlorine concentration
    5.
    发明申请
    Composition for measuring residual chlorine concentration 审中-公开
    用于测量残留氯浓度的组成

    公开(公告)号:US20070072305A1

    公开(公告)日:2007-03-29

    申请号:US11523021

    申请日:2006-09-19

    IPC分类号: G01N21/75

    CPC分类号: G01N31/224

    摘要: To attain a composition for measuring residual chlorine concentration capable of preventing crystallization of a coloring reagent in a chemical solution under temperature conditions of 5° C., provided is a composition for measuring residual chlorine concentration in sample water including one or more coloring reagents selected from the group consisting of a dialkyl benzidine compound and a tetraalkyl benzidine compound, an acid, and an alcohol compound. The alcohol compound is selected from the group consisting of a monohydric alcohol, a dihydric alcohol, and a trihydric alcohol, for example, and the composition is prepared to contain the alcohol compound in a content by weight of 20 to 100 times that of the coloring reagent.

    摘要翻译: 为了获得能够防止化学溶液中的着色剂在5℃的温度条件下结晶的残留氯浓度的组合物,提供了用于测量样品水中残留氯浓度的组合物,其包括一种或多种着色剂,所述着色剂选自 由二烷基联苯胺化合物和四烷基联苯胺化合物,酸和醇化合物组成的组。 醇化合物例如选自一元醇,二元醇和三元醇,并且组合物被制备成含有醇化合物的含量为着色剂的20-100倍重量 试剂。

    Method of supply amount management of water treating agent
    6.
    发明授权
    Method of supply amount management of water treating agent 失效
    水处理剂供应量管理方法

    公开(公告)号:US07708894B2

    公开(公告)日:2010-05-04

    申请号:US11727113

    申请日:2007-03-23

    IPC分类号: C02F5/12

    摘要: To simply and accurately determine the concentration of a water treating agent in thermal equipment upon management of a supply amount of the water treating agent, a method of controlling a supply amount of a water treating agent according to the present invention includes the steps of: supplying a water treating agent containing a scale inhibitor selected from chelating agents to a water-supply system of thermal equipment; collecting a water sample from the thermal equipment; quantitatively determining the scale inhibitor in the collected water sample; and determining a concentration of the water treating agent in the thermal equipment on the basis of a quantitative value of the scale inhibitor.

    摘要翻译: 为了在管理水处理剂的供给量时简单且准确地确定热设备中的水处理剂的浓度,根据本发明的控制水处理剂的供给量的方法包括以下步骤: 含有选自螯合剂的防垢剂的水处理剂加热到热设备的供水系统; 从热设备收集水样; 定量测定收集水样中的阻垢剂; 并根据阻垢剂的定量值确定热设备中的水处理剂的浓度。

    Hardness measurement reagent
    7.
    发明授权
    Hardness measurement reagent 失效
    硬度计试剂

    公开(公告)号:US07202090B2

    公开(公告)日:2007-04-10

    申请号:US11091552

    申请日:2005-03-29

    IPC分类号: G01N33/20 G01N31/00

    摘要: To provide a hardness measurement reagent unaffected by an M alkalinity in hardness measurement. A hardness measurement reagent as a one-solution type reagent includes a dye chosen from Eriochrome Black T (EBT) and Calmagite, triethanolamine, a glycol compound, and a pH buffer, in which the pH buffer includes a combination of amines selected from primary amines and secondary amines and a salt of a weak base.

    摘要翻译: 提供在硬度测量中不受M碱度影响的硬度测量试剂。 作为单溶型试剂的硬度测定试剂包括选自Eriochrome Black T(EBT)和Calmagite的染料,三乙醇胺,二醇化合物和pH缓冲剂,其中pH缓冲剂包括选自伯胺的胺的组合 和仲胺和弱碱的盐。

    Hardness measurement reagent
    8.
    发明申请
    Hardness measurement reagent 失效
    硬度计试剂

    公开(公告)号:US20050221499A1

    公开(公告)日:2005-10-06

    申请号:US11091552

    申请日:2005-03-29

    摘要: To provide a hardness measurement reagent unaffected by an M alkalinity in hardness measurement. A hardness measurement reagent as a one-solution type reagent includes a dye chosen from Eriochrome Black T (EBT) and Calmagite, triethanolamine, a glycol compound, and a pH buffer, in which the pH buffer includes a combination of amines selected from primary amines and secondary amines and a salt of a weak base.

    摘要翻译: 提供在硬度测量中不受M碱度影响的硬度测量试剂。 作为单溶型试剂的硬度测定试剂包括选自Eriochrome Black T(EBT)和Calmagite的染料,三乙醇胺,二醇化合物和pH缓冲剂,其中pH缓冲剂包括选自伯胺的胺的组合 和仲胺和弱碱的盐。