Coaxial constant-speed turbine set for blast furnace
A technology of turbine units and turbines, applied in the field of residual pressure and waste heat recovery, can solve the problems of high manufacturing and installation requirements, difficult shaft design, and many fault points, so as to reduce the difficulty of design and reduce the workload of equipment maintenance Effect
Inactive Publication Date: 2012-03-21
思安新能源股份有限公司
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Problems solved by technology
Since this BPRT unit uses two transmissions and has undergone two shifts, the design of the shaft system is relatively difficult, and the requirements for the manufacture and installation of the equipment are relatively high.
Moreover, the two variable speed conversions lead to complex system configuration, many fault points and heavy equipment maintenance workload, which increases energy loss and reduces the efficiency of BPRT units
In addition, the BPRT unit has more equipment and occupies a larger area, which increases the cost of the BPRT unit
Method used
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[0026] Next, the present invention will be described more fully with reference to the accompanying drawings, in which embodiments of the invention are shown. However, this invention may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like reference numerals refer to like elements throughout.
[0027] It will be understood that when an element is referred to as being "adjacent" or "connected to" another element, it can be directly adjacent or connected to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly adjacent to" or "directly connected to" another element, there are no interveni...
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The invention discloses a coaxial constant-speed turbine set for a blast furnace, which comprises an electric motor, a speed changer, a blast furnace blower and a high-speed blast furnace gas excess-pressure turbine, wherein the electric motor is connected to one side of the blast furnace blower through the speed changer; the high-speed blast furnace gas excess-pressure turbine is coaxially connected to the other side of the blast furnace blower; and a working rotating speed of the high-speed blast furnace gas excess-pressure turbine is as same as the working rotating speed of the blast furnace blower. The high-speed blast furnace gas excess-pressure turbine, a rotating speed of which (for example, 4800rpm) is as same as the rotating speed of the blast furnace blower, is selected and is coaxially connected to the blast furnace blower, thereby avoiding connecting the speed changer between the high-speed blast furnace gas excess-pressure turbine and the blast furnace blower, reducing the difficulty in designing an axis, promoting the utilization ratio of energy and reducing the demands on manufacturing and mounting of equipment.
Description
technical field [0001] The invention relates to the field of residual pressure and waste heat recovery, in particular to a blast furnace coaxial constant speed turbine train (Blast furnace Equal Speed turbine Train, BEST). Background technique [0002] In the traditional blast furnace process system, in order to improve the utilization rate of energy, the blast furnace gas is usually led out, and then enters the inlet of the blast furnace gas residual pressure turbine after passing through the inlet butterfly valve, the flapper valve, etc. The formed flow channel is continuously expanded to do work, and converted into kinetic energy to act on the working wheel to make it rotate, and the working wheel drives the generator to rotate together through the coupling to generate electricity. [0003] In this system, the blast furnace gas residual pressure turbine converts the pressure energy and heat energy of the gas into mechanical energy, and then transfers it to the generator...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F01D15/08F01D1/02C21B5/06
CPCY02P10/20
Inventor 史晓云邢玉民雷琰
Owner 思安新能源股份有限公司