Temperature monitoring of a fixed-bed catalytic reactor
    91.
    发明授权
    Temperature monitoring of a fixed-bed catalytic reactor 失效
    固定床催化反应器的温度监测

    公开(公告)号:US5192132A

    公开(公告)日:1993-03-09

    申请号:US808794

    申请日:1991-12-12

    IPC分类号: B01J8/00 B01J19/00 G01K7/06

    摘要: A thermowell for a fixed-bed reactor which has a vertical spine portion, and multiple spider portions spaced along the spine portion. At least one thermocouple and preferable a plurality of thermocouples are located in each arm of the spider portions with thermocouple leads extending upwardly through the spine portion to a monitor outside of the reactor. The thermowell is constructed in the reactor while loading the catalyst by first positioning the spine portion in the reactor, and then fabricating a spider portion at the lowermost level of the spine portion with at least one thermocouple in each arm of the spider portion and thermocouple leads extending through the arms and upwardly through the spine portion. Catalyst is then added to the reactor to cover the spider portion at the lowermost level. At each successive level, repeating the steps of fabricating another spider portion, and of adding catalyst to cover the spider portion.

    摘要翻译: 一种用于固定床反应器的热套管,其具有垂直的脊部,以及沿着脊部分开的多个蜘蛛部分。 至少一个热电偶和优选的多个热电偶位于蜘蛛部分的每个臂中,其中热电偶引线向上延伸穿过脊部到达反应器外的监视器。 通过首先将脊柱部分定位在反应器中,然后在脊柱部分的最低水平处制造具有至少一个热电偶的蜘蛛部分和蜘蛛部分的热电偶引线 延伸穿过臂并向上穿过脊部。 然后将催化剂加入到反应器中以覆盖最低水平的蜘蛛部分。 在每个连续的级别,重复制造另一个蜘蛛部分的步骤,以及添加催化剂以覆盖蜘蛛部分。

    Fast response thermocouple element
    92.
    发明授权
    Fast response thermocouple element 失效
    快速响应热电偶元件

    公开(公告)号:US4749415A

    公开(公告)日:1988-06-07

    申请号:US8028

    申请日:1987-01-28

    申请人: Serge P. Barton

    发明人: Serge P. Barton

    CPC分类号: G01K7/06 G01K1/18 G01K13/02

    摘要: A thermocouple element (10) for use in high-pressure, high temperature fluid applications having a cylindrical body portion (12) formed from a first metal and a cap (14) formed from a dissimilar metal. The cap is fused to the body such that the junction (18) forms an axial thermocouple junction. A plurality of grooves (13, 20) is formed in the cap and body to reduce the mass of material adjacent the junction for rapid conduction heat transfer from the fluid being monitored.

    摘要翻译: 一种用于高压,高温流体应用的热电偶元件(10),其具有由不同金属形成的第一金属和盖(14)形成的圆柱形主体部分(12)。 盖子与主体熔合,使得接合部(18)形成轴向热电偶连接点。 在盖和主体中形成多个凹槽(13,20),以减少邻近接合处的材料的质量,以便从被监测流体的快速传导热传递。

    Thermoelement comprising a graphite/boron carbide thermocouple
    93.
    发明授权
    Thermoelement comprising a graphite/boron carbide thermocouple 失效
    包含石墨/碳化硼热电偶的热元件

    公开(公告)号:US4732620A

    公开(公告)日:1988-03-22

    申请号:US840989

    申请日:1986-03-14

    CPC分类号: G01K7/06

    摘要: The invention is an improved theroelement which comprises a graphite/boron carbide thermocouple, the arms of which are constructed as a tube and a rod, arranged concentrically inside the tube, which are electrically connected at one end. One of the arms of the thermocouple consists essentially of boron carbide formed from self bonding boron carbide by pressureless sintering. Prefabricated sleeves of high-purity, boron-oxide-free hexagonal boron nitride are used between the arms of the thermocouple as spacers. Only the end of the arm of the thermocouple constructed as a rod is secured in an electrically conductive connecting piece and the arm is freely mobile in the direction towards the cold junction. As the material for the arm of the thermocouple constructed as a rod, there can be used, for example, boron carbide having a coarse-grained structure and a density of from 60 to 80% TD, which has been manufactured from boron carbide powder having bimodal particle size distribution by means of extrusion, followed by pressureless sintering at from 2000.degree. to 2250.degree. C.The thermoelement can also be manufactured in one operation by means of pressureless sintering of the boron carbide powder in situ. Such a thermoelement comprises, for example, a flexible graphite cord for the arm of the thermocouple constructed as a rod, a boron-nitride envelope and a boron-carbide casing, the envelope and casing having been formed from powders sintered in situ without pressure.

    摘要翻译: 本发明是一种改进的元件,其包括石墨/碳化硼热电偶,其臂构造为管和杆,同心地布置在管内,其一端电连接。 热电偶的一个臂基本上由通过无压烧结自结合碳化硼形成的碳化硼组成。 使用高纯度,不含氧化硼的六方氮化硼的预制套筒作为间隔件在热电偶的臂之间使用。 只有构造为杆的热电偶的臂的端部固定在导电连接件中,并且臂可以在朝向冷端的方向上自由移动。 作为构造为棒的热电偶的臂的材料,可以使用例如具有粗颗粒结构和密度为60至80%TD的碳化硼,其由具有 通过挤出进行双峰粒度分布,然后在2000〜2250℃进行无压烧结。也可以通过在原位无碳烧结碳化硼粉末的一次操作中制造热电偶。 这样的热电元件例如包括用作用作棒的热电偶的臂的柔性石墨帘线,氮化硼外壳和碳化硼外壳,外壳和壳体由没有压力原位烧结的粉末形成。

    Electrical heat sensing element, and method of its manufacture,
particularly for gas burning appliances
    94.
    发明授权
    Electrical heat sensing element, and method of its manufacture, particularly for gas burning appliances 失效
    电热传感元件及其制造方法,特别是用于燃气器具

    公开(公告)号:US4155776A

    公开(公告)日:1979-05-22

    申请号:US865579

    申请日:1977-12-29

    申请人: Kurt Romer

    发明人: Kurt Romer

    CPC分类号: G01K7/06 H01L35/34

    摘要: The materials forming the inner and outer conductors of the tip of a safety thermoelement are assembled in disk form, stacked above each other, preferably bonded together, for example by soldering, brazing, welding or the like. The disks are then extruded through an extrusion die which shapes the assembly of the disks into a pin or rodlike inner conductor, surrounded by a closed sleeve or cap formed of the outer conductor material. Preferably, the die additionally is shaped to provide an end terminal portion to the inner conductor, offset by a shoulder to permit assembly of the entire unit into a structural holder.

    摘要翻译: 形成安全热电元件的尖端的内部和外部导体的材料以盘形组装,彼此堆叠,优选地通过焊接,钎焊,焊接等粘合在一起。 然后将盘通过挤出模头挤出,该挤出模将圆盘的组件成形为由外部导体材料形成的封闭套筒或盖包围的销或棒状内部导体。 优选地,模具还被成形为向内部导体提供端部部分,由肩部偏移以允许整个单元组装成结构支架。

    Thermocouple assembly
    95.
    发明授权
    Thermocouple assembly 失效
    热电偶组件

    公开(公告)号:US3929511A

    公开(公告)日:1975-12-30

    申请号:US44557574

    申请日:1974-02-25

    申请人: JADE CONTROLS INC

    发明人: SOLOMON RALPH E

    IPC分类号: G01K1/14 G01K7/06 H01L1/02

    CPC分类号: G01K7/06 G01K1/14

    摘要: A thermocouple assembly in which the inner end of the tip is provided with a straight knurl which is forced into the bore of the base fitting so that the teeth of the knurl become embedded in the wall of the base fitting, the end of the tip having a beveled surface clamping a flared end of the conductor tubing against a similarly beveled surface of the fitting within the bore so that the tip, fitting and tubing are mechanically and electrically connected.

    摘要翻译: 一种热电偶组件,其中尖端的内端设置有直的滚花,其被迫进入基部配件的孔中,使得滚花的齿变得嵌入基部配件的壁中,尖端的端部具有 一个倾斜的表面将导体管的扩口端夹紧在孔内的配件的类似倾斜的表面上,使得尖端,配件和管道机械地和电连接。

    Small axial thermocouple
    96.
    发明授权
    Small axial thermocouple 失效
    小型热电偶

    公开(公告)号:US3819420A

    公开(公告)日:1974-06-25

    申请号:US18334471

    申请日:1971-09-24

    IPC分类号: G01K7/06 H01L35/32 H01V1/02

    CPC分类号: H01L35/32 G01K7/06

    摘要: A thermocouple having a cut Taylor which constitutes one leg of the thermocouple. The Taylor wire is coaxially sealed in a glass capillary tube. A metal tube at least partly coaxially encloses the glass capillary tube and constitutes the lead of the other thermoelectric leg. The metal core of the Taylor wire is made of one thermocouple material which is connected with the metal tube by an at least barely electrically conducting layer of the other thermoelectric material, thus constituting the thermoelectrically active measurement junction at the point of contact between the metal core and the layer. In practice, the glass capillary tube with the Taylor wire coaxially sealed in it may be bent by 90* in the region outside the metal tube. The above-described thermocouple is made as follows. After the Taylor wire has been sealed in the glass capillary tube, it is bent together with the latter and cut off only afterwards, thus exposing the metal core. The glass capillary tube is sealed in the metal tube. Subsequently, both the thermoelectric measurement junction proper and, at the same time, the connecting lead with the metal tube is made between the metal tube and the front faces of the metal core, by precipitating a thin metal layer of the proper material.

    摘要翻译: 具有构成热电偶的一条腿的切割泰勒的热电偶。 泰勒线同轴密封在玻璃毛细管中。 金属管至少部分同轴地包围玻璃毛细管并构成另一热电腿的引线。 泰勒线的金属芯由一个热电偶材料制成,该热电偶材料通过另一个热电材料的至少几乎不导电的层与金属管连接,从而在金属芯之间的接触点处构成热电活性测量结 和层。