| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | 一种压气机的防喘机匣结构 | CN202221866354.0 | 2022-07-19 | CN217602991U | 2022-10-18 | 张春梅; 刘海旭; 王丽红; 李欣蔚; 王辉; 冯永志 |
| 本实用新型涉及一种压气机的防喘机匣结构，属于燃气轮机技术领域。解决的是防喘措施结构复杂，成本高的问题。包括压气机机匣和防喘槽环，所述压气机机匣与防喘槽环同轴设置，防喘槽环上加工有槽口，槽口与径向方向具有夹角。本实用新型结构简单可靠，成本低，且使叶片顶部总压损失显著减小，从而使叶片通道顶部的堵塞大大改善，旋转失速因此受到抑制，稳定工作范围得到了扩大；同时本实用新型可使喘振裕度改善20％，大大提高了压气机的安全性。 | ||||||
| 162 | METHOD FOR DETECTING ROTATING STALL IN A COMPRESSOR | PCT/US2008/057582 | 2008-03-20 | WO2008118723A1 | 2008-10-02 | STABLEY, Robert, E.; EICHELBERGER, E. Curtis |
A system and method is provided for detecting and controlling rotating stall in the diffuser region of a compressor. A pressure transducer is placed in the gas flow path downstream of the impeller, preferably in the compressor discharge passage or the diffuser, to measure the sound or acoustic pressure phenomenon. Next, the signal from the pressure transducer is processed either using analog or digital techniques to determine the presence of rotating stall. Rotating stall is detected by comparing the detected energy amount, which detected energy amount is based on the measured acoustic pressure, with a predetermined threshold amount corresponding to the presence of rotating stall. Finally, an appropriate corrective action is taken to change the operation of the compressor in response to the detection of rotating stall. |
||||||
| 163 | 터빈 시동 방법 및 터빈 정지 방법 | KR1020080042820 | 2008-05-08 | KR1020080099805A | 2008-11-13 | 데조리스티모시; 듀트카미첼제이; 마틴닉; 셔를스티븐엠 |
| A method for start-up and shutdown a turbine to the compressor which includes an inlet guide vane, and a plurality of bleed valves and a plurality of blades in order to avoid the rotation stall. A method for start-up a turbine comprises the following steps: a step for starting rotation of a plurality of blades(30); a step for increasing the speed of rotation of blade; a step in order to displace to the speed of rotation of being high rotation stall window, closes one or more bleed valves(40); a step for partly opening the inlet guide vane about the location of the rotation stall window outer side; and a step for opening one or more bleed valves while partly closing the inlet guide vane. | ||||||
| 164 | Rotating stall | US11267172 | 2005-11-07 | US20060122815A1 | 2006-06-08 | Mehdi Vahdati; Naser Sayma; Mehmet Imregun |
| In a method of numerical modelling of the operation of a gas turbine engine, randomly chosen numerical modifications are made to values within the model, to represent a disturbance for triggering rotating stall. This results in a faster onset of rotating stall within the model, reducing the computational effort required to achieve this. | ||||||
| 165 | Turbine anti-rotating stall schedule | EP08155857.9 | 2008-05-08 | EP1990520A2 | 2008-11-12 | Dejoris, Timothy; Dutka, Michael; Martin, Nick; Schirle, Steven M. |
A method of starting up a turbine with a compressor (10) have an inlet guide vane (20), a number of bleed valves (40), and a number of blades (30) so as to avoid a rotating stall window (50). The method may include starting rotation of the blades (30), increasing the speed of the rotation of the blades (30), closing one or more bleed valves (40) so as to shift the rotating stall window (50) to a higher rotational speed, partially opening the inlet guide vane (20) to a position outside the rotating stall window (50), and opening the bleed valves (40) while partially closing the inlet guide vane (20) so as to pass through the rotating stall window (50).
|
||||||
| 166 | 一种防失速的钻井工具 | CN201320283489.9 | 2013-05-23 | CN203248101U | 2013-10-23 | 张晓东; 李一岚; 龚彦; 何石; 罗毅; 张也 |
| 本实用新型涉及一种防失速的钻井工具，属于石油天然气钻井装备领域。它主要由上接头、壳体、压缩弹簧、传动螺纹、下接头构成，所述上接头和壳体通过螺纹连接，并采用O型密封圈密封，上接头底端外圆柱面上沿径向装有三颗限位螺钉；所述下接头和壳体采用间隙配合，下接头中部加工有一台阶面，并和上接头外圆柱面形成动密封；下接头下端外圆柱面上加工有一圆锥面，下接头旋转时，能将泥浆沿锥面向上排除；下接头和上接头之间装有具有适宜刚度的轴向压缩弹簧，并在传动螺纹的约束下进行相对运动。本实用新型能解决憋钻、卡钻现象和钻头旋转失速，提高钻井效率；能够稳定钻头转速，从而减少钻头冲击磨损和振动，提高钻头使用寿命。 | ||||||
| 167 | 一种压力保护补油型回转驱动马达 | CN202321131934.X | 2023-05-08 | CN220248256U | 2023-12-26 | 仲崇成; 强同政; 田德科; 李彬; 张乾辉; 王苗苗 |
| 本实用新型涉及液压马达技术领域，具体涉及一种压力保护补油型回转驱动马达，包括前壳体以及后壳体，后壳体的外侧设置有压力保护补油总成，压力保护补油总成包括阀体以及设置于阀体的单向保护阀，阀体还开设有与后壳体的内腔连通的油口以及补油口，液压油能够通过单向保护阀和油口进入后壳体的内腔。本申请的后壳体配合安装压力保护阀和补油阀，实现马达负荷保护与內泄油的双向自动补偿，设计外置补油口，可实现內泄补油或外置油路补油，压力保护可降低负荷超载对马达结构的损坏，双向旋转內泄油可满足旋转失速对马达油口的压力冲击，降低马达的损坏及噪音，降低故障率，提高马达的整体效率。 | ||||||
| 168 | Asymmetric compressor air extraction method | JP2007277085 | 2007-10-25 | JP2008111435A | 2008-05-15 | SCHIRLE STEVEN M; KASPERSKI DONALD; MARTIN NICK; ZACHARIAS ROBERT M; DEJORIS TIMOTHY E |
| <P>PROBLEM TO BE SOLVED: To provide a method for mistuning rotating stall aerodynamics by preventing the formation of coherent unsteady loads. <P>SOLUTION: Compressor air is extracted in an asymmetric circumferential pattern (16). The asymmetric extract pattern disrupts the rotating stall cell (10) rotational pattern, preventing the formation of a coherent aerodynamic excitation. <P>COPYRIGHT: (C)2008,JPO&INPIT | ||||||
| 169 | Rotating stall | US12076807 | 2008-03-24 | US20080183441A1 | 2008-07-31 | Mehdi Vahdati; Naser Savma; Mehmet Imregun |
| In a method of numerical modelling of the operation of a gas turbine engine, randomly chosen numerical modifications are made to values within the model, to represent a disturbance for triggering rotating stall. This results in a faster onset of rotating stall within the model, reducing the computational effort required to achieve this. | ||||||
| 170 | METHOD FOR DETECTING ROTATING STALL IN A COMPRESSOR | US11690222 | 2007-03-23 | US20080232950A1 | 2008-09-25 | Robert E. Stabley; E. Curtis Eichelberger |
| A system and method is provided for detecting and controlling rotating stall in the diffuser region of a compressor. A pressure transducer is placed in the gas flow path downstream of the impeller, preferably in the compressor discharge passage or the diffuser, to measure the sound or acoustic pressure phenomenon. Next, the signal from the pressure transducer is processed either using analog or digital techniques to determine the presence of rotating stall. Rotating stall is detected by comparing the detected energy amount, which detected energy amount is based on the measured acoustic pressure, with a predetermined threshold amount corresponding to the presence of rotating stall. Finally, an appropriate corrective action is taken to change the operation of the compressor in response to the detection of rotating stall. | ||||||
| 171 | Turbine anti-rotating stall schedule | JP2008121756 | 2008-05-08 | JP2008281001A | 2008-11-20 | DEJORIS TIMOTHY; DUTKA MICHAEL J; MARTIN NICK; SCHIRLE STEVEN M |
| <P>PROBLEM TO BE SOLVED: To provide a method of starting up a turbine with a compressor (10) having an inlet guide vane (20), a plurality of bleed valves (40), and a plurality of blades (30) so as to avoid a rotating stall window (50). <P>SOLUTION: The method may include the steps of: starting rotation of the plurality of blades (30); increasing the speed of the rotation of the blades (30); closing one or more bleed valves (40) so as to shift the rotating stall window (50) to a higher rotational speed; partially opening the inlet guide vane (20) to a position outside the rotating stall window (50); and opening the bleed valves (40) while partially closing the inlet guide vane (20) so as to pass through the rotating stall window (50). <P>COPYRIGHT: (C)2009,JPO&INPIT | ||||||
| 172 | SYSTEM AND METHOD FOR DETECTING ROTATING STALL IN A CENTRIFUGAL COMPRESSOR | PCT/US2003/025378 | 2003-08-14 | WO2004018880A1 | 2004-03-04 | STABLEY, Robert; BEAVERSON, Gregory; BENDER, James |
A system and method is provided for detecting and controlling rotating stall in the diffuser region 119 of a centrifugal compressor 108. A pressure transducer 160 is placed in the gas flow path downstream of the impeller 202, preferably in the compressor discharge passage or the diffuser 119, to measure the sound or acoustic pressure phenomenon. Next, the signal from the pressure transducer 160 is processed either using analog or digital techniques to determine the presence of rotating stall. Rotating stall is detected by comparing the detected energy amount, which detected energy amount is based on the measured acoustic pressure, with a predetermined threshold amount corresponding to the presence of rotating stall. Finally, an appropriate corrective action is taken to change the operation of the centrifugal compressor 108 in response to the detection of rotating stall. |
||||||
| 173 | Method of modeling the rotating stall of a gas turbine engine | US12076807 | 2008-03-24 | US07643975B2 | 2010-01-05 | Mehdi Vahdati; Naser Savma; Mehmet Imregun |
| In a method of numerical modelling of the operation of a gas turbine engine, randomly chosen numerical modifications are made to values within the model, to represent a disturbance for triggering rotating stall. This results in a faster onset of rotating stall within the model, reducing the computational effort required to achieve this. | ||||||
| 174 | 一种新型轴流风机用扇叶 | CN202321769748.9 | 2023-07-07 | CN220204190U | 2023-12-19 | 林浙毅 |
| 本实用新型涉及一种新型轴流风机用扇叶，扇叶和法兰圈的特殊设计增强了流体动力学条件和风扇的工作效率。法兰圈是由易拉伸钢制成，位于风扇壳体的中心，扇叶则是由工程塑胶制成，固定在法兰圈上。特别的，扇叶侧面设有平衡凹槽，法兰圈上设有卡槽，以安装平衡夹并提供稳定的支持。此外，风扇壳体设有调节机构，包括入口盖板，出口盖板和连杆，通过这个设计可以平衡扇叶前后两侧的流体压力，有效避免旋转失速现象。连杆上设有复位弹簧，确保了调节机构在开启或关闭时的同步性，并能自动复位。这种设计简化了操作，提高了效率，延长了轴流风扇的使用寿命。 | ||||||
| 175 | 一种压缩机可变扩压道装置 | CN202220833915.0 | 2022-04-12 | CN217632985U | 2022-10-21 | 程慧杰 |
| 本实用新型公开了一种压缩机可变扩压道装置，包括伺服电机和蜗壳，所述伺服电机安装固定连接在蜗壳的上端外侧位置上，本实用新型中，通过在驱动环的外圆上增加三条槽，这三条槽带有一定角度，重新设计驱动销组件，使得驱动销组件可以在这槽中滑动，并在喷嘴板端面钻三个孔，驱动销组件可以在此孔中滑动，在喷嘴板上安装固定驱动销组件，达到可变扩压道的目的，并在蜗壳上安装内曲柄和外曲柄，外曲柄连接伺服电机，内曲柄连接连杆，连杆再连接驱动环，电机运转就可以通过曲柄和连杆运动使驱动环做圆周运动，通过调整扩压道几何形状以适应气体流动来消除旋转失速和喘振，从而达到减弱噪声和振动的目的。 | ||||||
| 176 | 一种具有弧形缝的压缩机机匣 | CN201720330919.6 | 2017-03-31 | CN206723141U | 2017-12-08 | 张一帆; 窦华书; 张炜; 魏义坤; 陈小平; 杨徽 |
| 本实用新型公开了一种具有弧形缝的压缩机机匣。随着压缩机压缩比的提高，压缩机的工作范围受到了较大影响，效率也明显下降。机匣处理是一种改善压缩机的气动稳定性的有效方式。本实用新型的机匣体呈圆管状；机匣体的端面上开设有沿机匣体周向均布的多个弧形缝；相邻的两个弧形缝之间均设有直槽组；直槽组由第一直槽、两个第二直槽、两个第三直槽和两个第四直槽组成。本实用新型能够削弱叶顶间隙的气体流动强度，抑制旋转失速团。在工作过程中，本实用新型中的直槽组内形成的漩涡能够使得主流与机匣内壁的接触减小，起到减小阻力作用。(ESM)同样的发明创造已同日申请发明专利 | ||||||
| 177 | 离心通风机及包含该离心通风机的空调器 | CN201120007440.1 | 2011-01-10 | CN201916254U | 2011-08-03 | 张辉; 肖彪; 肖忠弟; 赵伟东; 艾大云; 叶务占; 林金煌; 刘北泉; 肖芳斌 |
| 本实用新型提供了一种离心通风机及包含该离心通风机的空调器。该离心通风机包括：蜗壳(2)，具有进气口(21)；风机叶轮(1)，设置在蜗壳(2)内；以及导流圈(3)，设置在蜗壳(2)的进气口(21)上，用于进气口导流，还包括：导流格栅(4)，设置在导流圈(3)外侧，具有均匀周向进气气流的结构。根据本实用新型的离心通风机能够有效避免离心通风机叶片和导流器区域旋转失速，改善导流圈出口气流周向均匀性，使得离心风机进出风均匀稳定，降低风机噪声，改善音质，提高性能和可靠性，降低成本，同时也保证在较宽流量范围内高效可靠。根据本实用新型的空调器包含上述离心通风机。 | ||||||
| 178 | 拓宽多级、轴流压气机稳定运行区域的装置 | CN02238702.1 | 2002-06-13 | CN2545370Y | 2003-04-16 | 聂超群; 徐纲; 陈静宜; 黄伟光 |
| 一种利用反馈控制原理拓宽多级、轴流压气机稳定运行区域的装置，由多个高频响动态压力传感器采集压气机运行时的动态压力信号，串联一个前置信号放大器、一个低通滤波模块、一个模数转换器、多个并联的数值信号处理器DSP、另一个数模转换器、一个高频响气力输送控制阀、一个稳压罐、多个微喷量电磁控制阀、多个微喷嘴。通过控制微喷嘴射出微流量的高压气流，从而改变动叶通道内部气体流动的非定常特征，推迟旋转失速现象发生所对应的临界流量。其优点在于：在不改变系统稳态特性、压气机运行效率、压气机主要结构部件的基础上，拓宽了多级、轴流压气机的稳定运行区域。 | ||||||
| 179 | Method for detecting rotating stall in a compressor | US12960024 | 2010-12-03 | US08337144B2 | 2012-12-25 | Robert E. Stabley; E. Curtis Eichelberger |
| A system and method is provided for detecting and controlling rotating stall in the diffuser region of a compressor. A pressure transducer is placed in the gas flow path downstream of the impeller, preferably in the compressor discharge passage or the diffuser, to measure the sound or acoustic pressure phenomenon. Next, the signal from the pressure transducer is processed either using analog or digital techniques to determine the presence of rotating stall. Rotating stall is detected by comparing the detected energy amount, which detected energy amount is based on the measured acoustic pressure, with a predetermined threshold amount corresponding to the presence of rotating stall. Finally, an appropriate corrective action is taken to change the operation of the compressor in response to the detection of rotating stall. | ||||||
| 180 | 액셜 디퓨저 및 이것을 구비한 원심펌프의 운전방법 | KR1019930008059 | 1993-05-11 | KR100272200B1 | 2000-11-15 | 오가와모또야스 |
| PURPOSE: An axial diffuser and an operation method of a centrifugal pump therewith are provided to prevent rotating stall at the inlet of the diffuser securely and conveniently, and to enlarge the operational range of the pump by adjusting the difference between the incident angle of the blade and the incident angle of treating liquid. CONSTITUTION: A centrifugal pump has an axial diffuser(12) with plural blades(16) having the specific incident angle to prevent stall of rotation and to enlarge the operational flow area. The incident angle of the blades of the axial diffuser is so determined that a value provided by subtraction from the blade incident angle(beta G) by the incident angle(alpha G) of treating liquid is equal to or below the specific angle defined according to the kind of the treating liquid. The axial diffuser is formed by fixing the blades in a casing(20) to regulate the treating liquid discharged from an impeller(10) supported to a rotating shaft(22). The incident angle of the blade is 3 to 10 angular degrees, and the value subtracting the incident angle of the treating liquid from the incident angle of the blade -1 to 8 angular degrees. | ||||||
QQ群二维码
意见反馈
意见反馈