Control method for optimizing generated power of solar-aided coal-fired power system under off-design working conditions

    公开(公告)号:US20220090779A1

    公开(公告)日:2022-03-24

    申请号:US17598902

    申请日:2021-01-25

    摘要: A control method for optimizing generated power of a solar-aided coal-fired power system under off-design working conditions sets maximizing generated power without changing main steam flow rate as a control goal. A solar-coal feedwater flow distribution ratio is adjusted to adjust water flow rate heated by a solar heat collection system, so as to achieve the control goal. Control steps include reading relevant information; calculating the water flow rate range heated by the solar heat collection system, and an applicable solar-coal feedwater flow distribution ratio range; establishing a correspondence between the generated power and the solar-coal feedwater flow distribution ratio within this range; selecting a solar-coal feedwater flow distribution ratio corresponding to the maximum generated power; and adjusting the water flow rate entering the solar heat collection system to an optimized value. The present invention can flexibly control the solar-coal coupling and improve the economy.

    DSC Thermal Analysis Method for Action of Applied Electric Field

    公开(公告)号:US20210041381A1

    公开(公告)日:2021-02-11

    申请号:US16989637

    申请日:2020-08-10

    IPC分类号: G01N25/04 G01R29/12

    摘要: A Differential Scanning calorimetry (DSC) thermal analysis method for the action of an applied electric field includes: step 1, in an experiment module of a differential scanning calorimeter, placing a microelectrode crucible and a reference crucible on corresponding sensors, connecting electrode wires of the microelectrode crucible with a signal generator, setting signal parameters to be output, placing a tested sample in a gap between electrodes, closing a microelectrode crucible lid, and closing the experiment module; step 2, at a temperature-varying stage, measuring a DSC curve of the tested sample under the action of an electric field, and at a reheating stage, measuring a DSC curve of the tested sample with no electric field; and step 3, analyzing the DSC curves in combination with the related theories of dielectrics and thermodynamics, and calculating an electric field intensity of the tested sample and a phase transformation rate of the tested sample.

    LOOP HEAT PIPE WITH VAPOR-LIQUID TWO-PHASE FLOW INJECTOR

    公开(公告)号:US20200292244A1

    公开(公告)日:2020-09-17

    申请号:US16587025

    申请日:2019-09-29

    IPC分类号: F28D15/04

    摘要: A loop heat pipe with a vapor-liquid two-phase flow injector, including: an evaporator, the vapor-liquid two-phase flow injector, a boiling pool and a condenser. The two-phase flow injector has a central vapor inlet and a circumferential liquid inlet, and is connected to an outlet of the evaporator and an inlet of the boiling pool. The condensate inlet of the condenser is connected to an outlet of the boiling pool. An outlet of the condenser is connected to the evaporator. With the vapor-liquid two-phase flow injector, the invention can directly introduce a part of the supercooled liquid working medium to the boiling pool without passing through the evaporator, solving the problem of insufficient liquid supply for the boiling pool and increasing the driving force for the system operation. Therefore, the invention enables the efficient cooling of electronic devices and the long-distance heat transfer.

    PRESSURE-REGULATABLE PRESSURE SORES PREVENTION CUSHION
    4.
    发明申请
    PRESSURE-REGULATABLE PRESSURE SORES PREVENTION CUSHION 审中-公开
    压力可调压力防护套

    公开(公告)号:US20140020186A1

    公开(公告)日:2014-01-23

    申请号:US13939979

    申请日:2013-07-11

    IPC分类号: A61G5/10

    摘要: A pressure-regulatable pressure sores prevention cushion is provided. The cushion comprises an air cell array, having a plurality of air cells and being divided into at least four air cell zones, the air cells in each air cell zone being in communication with each other, but air cells in any two adjacent air cell zones being not in communication with each other; a plurality of air passages, located under the air cell array and each of which being connected to and in communication with at least one of the air cell zones; a base, on which the air cell array having a plurality of air cells and the air passages being disposed; a plurality of air ducts, which are disposed within the base, an end of each air duct being in communication with a corresponding air passage, and the other end extending out of the cushion and being provided with a joint, and each air duct having a respective valve; and an automatic pressure regulator, which is in communication with the joints of the plurality of air ducts and electrically connected to the respective valve of each duct to enable the automatic pressure regulator to inflate or deflate each air duct.

    摘要翻译: 提供压力可调节的防疮垫。 所述衬垫包括具有多个空气室并且被分成至少四个空气室区域的空气室阵列,每个空气室区域中的空气室彼此连通,但任何两个相邻空气室区域中的气室 不相互通信; 多个空气通道,位于气囊阵列下方,每个空气通道与至少一个气囊区连接并连通; 空气单元阵列具有多个气室和空气通道的基座; 多个空气管道,其设置在所述基座内,每个空气管道的端部与相应的空气通道连通,另一端延伸出所述衬垫并设置有接头,并且每个空气管道具有 各自的阀门; 以及自动压力调节器,其与所述多个空气管道的接头连通并且电连接到每个管道的相应阀门,以使所述自动压力调节器能够使每个风道膨胀或放气。

    Power generation device and method using organic working fluid for circulation without pump and valve

    公开(公告)号:US20210189913A1

    公开(公告)日:2021-06-24

    申请号:US17173190

    申请日:2021-02-10

    IPC分类号: F01K25/10 H02K7/18

    摘要: A power generation device and method using organic working fluid for circulation without pump and valve are invented, the principle is able to be called flash jet natural cycle. The flash injection tube, the magnetic sphere motion tube and the storage tank are connected to form the main loop. The finned tube and the storage tank are connected to form the cooling loop. The working fluid is heated in the flash injection tube by low-temperature heat source, and is cooled in the finned tube by air or water. The gravity and flash force jointly drive the flash jet natural cycle. The lower magnetic ball acts as a one-way valve for supplying liquid to the flash injection tube. The upper magnetic ball acts as a valve and a rotor driven by the flash force and gravity to move linearly and produce electricity.

    Method for collaboratively constructing column envelope profile of two flanks of star wheel tooth
    6.
    发明申请
    Method for collaboratively constructing column envelope profile of two flanks of star wheel tooth 有权
    协同构造星轮齿两侧翼柱包络剖面的方法

    公开(公告)号:US20160230869A1

    公开(公告)日:2016-08-11

    申请号:US14783844

    申请日:2015-03-11

    IPC分类号: F16H55/08 F04C18/08

    摘要: A method for collaboratively constructing a column envelope profile of two flanks of a star wheel tooth includes steps of: determining a tooth width B of a star wheel according to a diameter of the star wheel and a dimension of a root circle; thereafter, geometrically representing positions and shapes of the two flanks of each star wheel tooth of the star wheel by two base columns having parallel axes and the same diameter; wherein: the axes of the base columns are parallel with a center line of the star wheel tooth; on a section of a tooth top of the star wheel tooth, a local projection of a first base column close to a front flank of the star wheel tooth is projected on a lowermost part of a projection of the front flank of the star wheel tooth; and a local projection of a second base column close to a back flank of the star wheel tooth is projected on an uppermost part of a projection of the back flank of the star wheel tooth. A center distance L between the two base columns, a diameter d0 of the base columns, the tooth width B of the star wheel tooth and an inclined angle λ of the flanks of the star wheel tooth at a pitch circle have a quantitative mathematic relationship.

    摘要翻译: 用于协同构造星形轮齿的两个侧面的柱形包络轮廓的方法包括以下步骤:根据星形轮的直径和根圆的尺寸来确定星形轮的齿宽B; 此后,通过具有平行轴线和相同直径的两个基座列几何地表示星轮的每个星轮齿的两个侧面的位置和形状; 其中:所述基列的轴线与所述星轮齿的中心线平行; 在星轮齿的齿顶的一部分上,靠近星轮齿的前侧面的第一基座的局部突起突出在星轮齿的前侧面的突起的最下部; 并且靠近星轮齿的后侧面的第二基座的局部突起被突出在星轮齿的后侧面的突起的最上部。 两个基列之间的中心距离L,基列的直径d0,星轮齿的齿宽B和星轮齿在节圆处的侧面的倾斜角λ具有定量数学关系。

    Polishing device for optical elements and method thereof
    7.
    发明申请
    Polishing device for optical elements and method thereof 审中-公开
    光学元件抛光装置及其方法

    公开(公告)号:US20160008944A1

    公开(公告)日:2016-01-14

    申请号:US14772307

    申请日:2014-04-24

    IPC分类号: B24B9/14

    摘要: A polishing device for optical elements includes: a tool shank (1), and a polishing disc base; wherein the tool shank (1) is connected to the polishing disc base and is mounted on a tool shaft of a numerical-controlled processing device; wherein a polishing film (3) is stuck on the polishing disc base; the polishing disc base is a profiling polishing disc base (7), a cylinder polishing disc base (2), a profiling polishing disc base (12) or a spherical polishing disc base (8); wherein the tool shank (1) is independent and universal, thereby reducing the processing cost of the polishing device. A polishing method for optical elements is based on the shapes mentioned above of the polishing disc base.

    摘要翻译: 一种用于光学元件的抛光装置包括:工具柄(1)和抛光盘基座; 其中所述工具柄(1)连接到所述抛光盘基座并且安装在数控处理装置的工具轴上; 其中抛光膜(3)粘附在抛光盘基座上; 抛光盘基座是轮廓抛光盘基座(7),圆柱抛光盘基座(2),仿形抛光盘基座(12)或球面抛光盘基座(8); 其中所述工具柄(1)是独立且通用的,从而降低了抛光装置的加工成本。 用于光学元件的抛光方法基于上述抛光盘基座的形状。

    Method for analyzing severe accident in nuclear reactor based on advanced particle method

    公开(公告)号:US20230368934A1

    公开(公告)日:2023-11-16

    申请号:US18213904

    申请日:2023-06-26

    IPC分类号: G21D3/06 G21D3/00

    CPC分类号: G21D3/06 G21D3/005

    摘要: A method for analyzing a sever accident in a nuclear reactor based on an advanced particle method includes steps of: 1) performing geometric modeling, setting initial conditions and boundary conditions; 2) updating material physical properties and key parameters; 3) performing mechanical structure module calculation, updating solid particle stress, strain, internal energy, displacement and velocity; 4) performing thermal hydraulic module calculation, updating fluid particle internal energy, position and velocity; 5) performing chemical reaction module calculation, updating particle matter composition and internal energy; 6) performing neutron physics module calculation, updating particle neutron flux density; and 7) outputting data. The method of the present invention is based on the discrete form of the advanced particle method, which is capable of accurately capturing cross-sectional changes, matter changes, and phase changes. Compared with grid method, the present invention can effectively avoid a mesh distortion problem existing in a large deformation.

    METHOD FOR IMPROVING THE WITHSTANDING CAPABILITY OF THE CLADDING MATERIAL IN THE FAST NEUTRON IRRADIATION ENVIRONMENT

    公开(公告)号:US20230335304A1

    公开(公告)日:2023-10-19

    申请号:US17850238

    申请日:2022-06-27

    IPC分类号: G21C3/18 G21C1/02 G21C21/02

    CPC分类号: G21C3/18 G21C1/02 G21C21/02

    摘要: The invention belongs to the technical field of nuclear reactor materials design, and discloses a method for improving the withstanding capability of the cladding material in the fast neutron irradiation environment, comprising the following steps: selecting the cladding material with the annular structure and placing it on the outer side of the metallic fuel slug, with leaving a 0.2-0.8 mm gap between the metallic fuel slug and the cladding material; processing the operation in a reactor subsequently, with an annealing process of the fast neutron reactor fuel during the operation of the reactor; improves the withstanding capability of the cladding material in the fast neutron irradiation environment. The invention processes annealing treatment of the cladding material by balancing the internal and external stresses, multiple cycles of steady-state and transient operations, enhancing the withstanding capability of the steel in the high neutron irradiation environment, improving the lifetime of the cladding material.

    Method for calculating damage of carbon fiber reinforced polymer composite under action of single lightning current component with fast-rising rate

    公开(公告)号:US20210199613A1

    公开(公告)日:2021-07-01

    申请号:US17059203

    申请日:2019-10-11

    IPC分类号: G01N27/20 G06F30/20

    摘要: A method for calculating the damage of a carbon fiber composite reinforced polymer (CFRP) composite under an action of a single lightning current component with a fast-rising rate is disclosed. Through the obtained dynamic impedance curves of the CFRP composite under the action of the non-destructive lightning current component, the anisotropic conductivity of the CFRP composite under the action of the single lightning current component with specified parameters is extrapolated based on pre-designed lightning damage simulation conditions. The anisotropic conductivity is taken as the initial condition of the conductivity of the CFRP composite in the coupled thermoelectric simulation model, which is able to better simulate the real lightning effect on the CFRP composite, and is able to more accurately obtain the lightning damage of the CFRP composite and analyze the relationship between the lightning damage parameters.