Composition for preventing corrosion using a sulfite-based oxygen scavenger
    1.
    发明授权
    Composition for preventing corrosion using a sulfite-based oxygen scavenger 失效
    使用亚硫酸盐型除氧剂防止腐蚀的组合物

    公开(公告)号:US06402984B1

    公开(公告)日:2002-06-11

    申请号:US09397025

    申请日:1999-09-16

    IPC分类号: C02F170

    CPC分类号: C23F11/182 C23F11/10

    摘要: The invention effectively prevents occurrence of corrosion in water tubes or the like of boilers. The invention provides a method for operating a boiler, including regulating a concentration of sulfate ions SO42− in boiler water to under 500 ppm, and a method for injecting a sulfite base oxygen scavenger, including setting a concentration of residual dissolved oxygen in boiler feed water to 2-4 ppm. The invention further provides a sulfite base oxygen scavenger composition comprising: 3-30 weight % of at least one selected from a group consisting of Na2SO3, K2SO3, NaHSO3 and KHSO3; 1-20 weight % of NaOH or KOH; 0.2-2 weight % of potassium sorbate; and 5-500 ppm of CoSO4.

    摘要翻译: 本发明有效地防止了锅炉水管等中的腐蚀发生。 本发明提供了一种操作锅炉的方法,包括将锅炉水中硫酸根离子SO42-的浓度调节到500ppm以下,以及一种注入亚硫酸盐氧清除剂的方法,包括在锅炉给水中设定残留的溶解氧浓度 至2-4ppm。 本发明还提供了一种亚硫酸盐氧清除剂组合物,其包含:3-30重量%的选自Na 2 SO 3,K 2 SO 3,NaHSO 3和KHSO 3中的至少一种; 1-20重量%的NaOH或KOH; 0.2-2重量%的山梨酸钾; 和5-500ppm的CoSO 4。

    Method for preventing corrosion using a sulfite-based oxygen scavenger,
and composition therefor
    2.
    发明授权
    Method for preventing corrosion using a sulfite-based oxygen scavenger, and composition therefor 失效
    使用亚硫酸盐型除氧剂防止腐蚀的方法及其组成

    公开(公告)号:US6027687A

    公开(公告)日:2000-02-22

    申请号:US49120

    申请日:1998-03-27

    CPC分类号: C23F11/182 C23F11/10

    摘要: The invention effectively prevents occurrence of corrosion in water tubes or the like of boilers. The invention provides a method for operating a boiler, including regulating a concentration of sulfate ions SO.sub.4.sup.2- in boiler water to under 500 ppm, and a method for injecting a sulfite base oxygen scavenger, including setting a concentration of residual dissolved oxygen in boiler feed water to 2-4 ppm. The invention further provides a sulfite base oxygen scavenger composition comprising: 3-30 weight % of at least one selected from a group consisting of Na.sub.2 SO.sub.3, K.sub.2 SO.sub.3, NaHSO.sub.3 and KHSO.sub.3 ; 1-20 weight % of NaOH or KOH; 0.2-2 weight % of potassium sorbate; and 5-500 ppm of CoSO.sub.4.

    摘要翻译: 本发明有效地防止了锅炉水管等中的腐蚀发生。 本发明提供了一种操作锅炉的方法,包括将锅炉水中硫酸根离子SO42-的浓度调节到500ppm以下,以及一种注入亚硫酸盐氧清除剂的方法,包括在锅炉给水中设定残留的溶解氧浓度 至2-4ppm。 本发明还提供了一种亚硫酸盐氧清除剂组合物,其包含:3-30重量%的选自Na 2 SO 3,K 2 SO 3,NaHSO 3和KHSO 3中的至少一种; 1-20重量%的NaOH或KOH; 0.2-2重量%的山梨酸钾; 和5-500ppm的CoSO 4。

    Hardness indicator
    3.
    发明授权
    Hardness indicator 失效
    硬度指示器

    公开(公告)号:US06190611B1

    公开(公告)日:2001-02-20

    申请号:US09141370

    申请日:1998-08-27

    IPC分类号: G01N3320

    CPC分类号: G01N33/1853 G01N31/22

    摘要: A harness indicator is highly reactive to a trace amount of Ca2+, and is slow to degrade in a high temperature environment of greater than 50° C. In one embodiment, the hardness indicator contains EBT, a pH buffer, and a masking agent as main components, and an admixture of Mg-EDTA. In another embodiment, the hardness indicator contains EBT, a pH buffer, and a masking agent as main components, and an admixture of anhydrous Mg-EDTA. In another embodiment, the hardness indicator contains EBT, a pH buffer, and a masking agent as main components, and an admixture of anhydrous Mg-EDTA and potassium sorbate. In a further embodiment, the hardness indicator contains EBT, a pH buffer, and a masking agent as main components, and an admixture of Mg-EDTA and potassium sorbate. In a further embodiment, the hardness indicator contains EBT, a pH buffer, and a masking agent as main components, and an admixture of potassium sorbate.

    摘要翻译: 线束指示器对痕量的Ca2 +具有高反应性,并且在大于50℃的高温环境中缓慢降解。在一个实施方案中,硬度指示剂含有EBT,pH缓冲剂和作为主要的掩蔽剂 组分和Mg-EDTA的混合物。 在另一个实施方案中,硬度指示剂含有EBT,pH缓冲剂和作为主要组分的掩蔽剂,以及无水Mg-EDTA的混合物。 在另一个实施方案中,硬度指示剂含有EBT,pH缓冲剂和掩蔽剂作为主要组分,以及无水Mg-EDTA和山梨酸钾的混合物。 在另一个实施方案中,硬度指示剂含有EBT,pH缓冲剂和掩蔽剂作为主要组分,以及Mg-EDTA和山梨酸钾的混合物。 在另一个实施方案中,硬度指示剂含有EBT,pH缓冲剂和作为主要成分的掩蔽剂,以及山梨酸钾的混合物。

    Fluorescent lamp generating different color light beams
    4.
    发明授权
    Fluorescent lamp generating different color light beams 失效
    荧光灯产生不同颜色的光束

    公开(公告)号:US4835440A

    公开(公告)日:1989-05-30

    申请号:US113127

    申请日:1987-10-27

    IPC分类号: H01J61/94

    CPC分类号: H01J61/94

    摘要: A cathode is arranged at one end of an envelope of a fluorescent lamp, and a plurality of anodes are arranged at the other end. A discharge path-forming structure is disposed between the cathode and anodes. The structure comprises a vessel having an open end at the position adjacent to the anodes and an inner space, and also comprises a dividing element for dividing the inner space into a plurality of divided discharge paths each including a corresponding anode. A fluorescent material layer is coated on the inner surface of the vessel in a manner whereby the lamp generates different color light beams.

    摘要翻译: 在荧光灯的外壳的一端配置阴极,在另一端设置多个阳极。 放电路径形成结构设置在阴极和阳极之间。 该结构包括在与阳极相邻的位置处具有开口端的容器和内部空间,并且还包括用于将内部空间分成多个分开的放电路径的分隔元件,每个分开的放电路径均包括相应的阳极。 荧光材料层以使得灯产生不同颜色光束的方式涂覆在容器的内表面上。

    Steam boiler apparatus and operating method therefor
    5.
    发明授权
    Steam boiler apparatus and operating method therefor 有权
    蒸汽锅炉设备及其操作方法

    公开(公告)号:US08277662B2

    公开(公告)日:2012-10-02

    申请号:US12730736

    申请日:2010-03-24

    申请人: Junichi Nakajima

    发明人: Junichi Nakajima

    IPC分类号: B01D39/00

    CPC分类号: F01K17/02

    摘要: It is intended to effectively suppress corrosion of a feed-water supply pipe in a preheater, by means of recirculation of boiler water to feed-water to be supplied to a steam boiler, even if a concentration of an alkaline component of the feed-water is relatively high. An alkali metal hydroxide is added from an agent-adding unit (14) to feed-water after removing therefrom a water hardness component in a water-softener unit (15) using a cation exchange resin and then removing therefrom dissolved gas in a degasifier unit (16). Then, the feed-water is supplied to a steam boiler 20 via a feed-water supply line 13 while being heated by a preheater (41). A part of boiler water having a pH value increased along with an increase in concentration of the alkali metal hydroxide resulting from enrichment thereof in the steam boiler (20) is mixed with the feed-water via a recirculation line (38). An alkaline component of the feed-water in the feed-water supply line (13) reacts with hydrogen ions from the cation exchange resin to form a carbonic acid, so that a concentration of the alkaline component is reduced. Thus, when the boiler water is mixed with the feed-water, a pH of the feed-water is increased without being influenced by a buffering ability of the alkaline component, to suppress corrosion of the feed-water supply line (13).

    摘要翻译: 旨在有效地抑制预热器中的给水供给管的腐蚀,通过将锅炉水再循环到供给蒸汽锅炉的给水中,即使进料水的碱性成分浓度 是比较高的 在使用阳离子交换树脂除去水软化剂单元(15)中的水硬度成分之后,从试剂添加单元(14)向其中加入碱金属氢氧化物,然后将其中的溶解气体除去脱气器单元 (16)。 然后,在被预热器(41)加热的同时,供水通过给水供给管线13供给到蒸汽锅炉20。 随着在蒸汽锅炉(20)中富集的碱金属氢氧化物浓度的增加,pH值增加的一部分锅炉水与供水通过再循环管线(38)混合。 给水供给管线(13)中的给水的碱性成分与来自阳离子交换树脂的氢离子反应形成碳酸,从而降低碱性成分的浓度。 因此,当锅炉水与给水混合时,不会受到碱性成分的缓冲能力的影响,能够提高给水的pH,抑制给水供给管路13的腐蚀。

    Hardness indicator composition and method of water hardness analysis
    6.
    发明授权
    Hardness indicator composition and method of water hardness analysis 失效
    硬度指标组成及水硬度分析方法

    公开(公告)号:US06599748B1

    公开(公告)日:2003-07-29

    申请号:US09716434

    申请日:2000-11-21

    IPC分类号: G01N3318

    CPC分类号: G01N33/1853

    摘要: A hardness indicator composition, and a method of water hardness analysis, capable of measuring hardness even with higher-hardness water without requiring titration by a two-liquid system. The hardness indicator composition is formulated of a metal indicator with a desensitizer added thereto.

    摘要翻译: 硬度指示剂组合物和水硬度分析方法,即使用较高硬度的水也能测量硬度,而不需要通过双液体系统滴定。 硬度指示剂组合物配制有添加有脱敏剂的金属指示剂。

    Data distribution method and device
    7.
    发明申请
    Data distribution method and device 审中-公开
    数据分配方法和装置

    公开(公告)号:US20060259534A1

    公开(公告)日:2006-11-16

    申请号:US10561872

    申请日:2004-06-11

    IPC分类号: G06F17/15

    摘要: Computers PC of n stations, each equipped with a storage device to accommodate the data to be cross-correlated, are connected to a line concentrator or communications network that has a switching function. The data allocated to each computer can be divided into n or more partial data, and each partial data is assigned to perform the cross correlation operation to each computer. Furthermore, in PC's connected in such a manner that data can be transmitted via a line concentrator or communication network, mutually between 2 PC's connected each other, the step of transmiting partial data from the PC to the partner PC connected to the PC is repeated. Thereby, it is possible to effectively distribute data as an object of the cross correlation operation stored in multiple storage devices of PC's to each PC.

    摘要翻译: 每个装备有用于容纳要相互关联的数据的存储装置的n个站的计算机PC连接到具有切换功能的集线器或通信网络。 分配给每个计算机的数据可以被划分为n个或更多个部分数据,并且分配每个部分数据以对每个计算机执行互相关操作。 此外,在PC中连接的数据可以通过集线器或通信网络进行数据传输,在彼此连接的2台PC之间相互连接,重复从PC连接到PC的伙伴PC发送部分数据的步骤。 由此,可以将存储在PC的多个存储装置中的互相关操作的对象的数据有效地分配给各个PC。

    Process for inhibiting polymerization of an aromatic vinyl compound
    8.
    发明授权
    Process for inhibiting polymerization of an aromatic vinyl compound 有权
    抑制芳族乙烯基化合物聚合的方法

    公开(公告)号:US07202391B2

    公开(公告)日:2007-04-10

    申请号:US10476140

    申请日:2002-04-18

    IPC分类号: C10G7/00 C10G9/16

    摘要: According to the present invention, there is provided a process for inhibiting the polymerization of an aromatic vinyl compound which is capable of efficiently inhibiting the polymerization of an aromatic vinyl compound not only in an initial stage but also over a long term in the stage of producing, purifying, storing or transporting the aromatic vinyl compound, and which is excellent in handling. The present invention relates to a process for inhibiting the polymerization of an aromatic vinyl compound which requires the step of adding a 2-nitrophenol compound in combination with a sulfonic acid compound to the aromatic vinyl monomer during the stage of producing, purifying, storing or transporting the aromatic vinyl compound.

    摘要翻译: 根据本发明,提供一种抑制芳香族乙烯基化合物的聚合的方法,该方法能够有效地抑制芳族乙烯基化合物的聚合,不仅在初期阶段,而且在生产阶段也长期地聚合 ,净化,储存或运输芳族乙烯基化合物,并且处理性优异。 本发明涉及抑制芳香族乙烯基化合物的聚合的方法,该方法需要在制备,纯化,储存或运输阶段期间将2-硝基苯酚化合物与磺酸化合物组合加入到芳族乙烯基单体中 芳族乙烯基化合物。