Movable blade-adjustable improved axial-flow type variable-frequency energy-saving fan and control system thereof
A control system, axial flow technology, applied in the direction of engine control, pump control, machine/engine, etc., can solve the problem that the adjustable-blade induced draft fan is not suitable for frequency conversion transformation, and achieve the effect of simple structure and convenient operation
Inactive Publication Date: 2017-05-31
河北冀力重型机械设备有限公司
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Problems solved by technology
Compared with the traditional centrifugal fan and static blade adjustable induced fan, the movable blade adjustable induced fan can guarantee higher working efficiency within a certain blade opening adjustment range, so people usually think that it is suitable for in-service or new thermal power generation The frequency conversion transformation of the adjustable blade fan of the boiler unit can not achieve the purpose of energy saving and consumption reduction, so there has always been a misunderstanding in the industry: the fan with adjustable blade is not suitable for frequency conversion transformation
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[0019] An improved axial-flow frequency conversion energy-saving fan with adjustable movable blades proposed by the present invention includes a body casing 7, a power assembly 8 and a base 9, the power assembly 8 is installed in the body casing 7, and the base 9 is installed below the body casing 7. Air vents are provided in the body shell 7, and the power assembly 8 is fixedly installed in the air vents through a support frame. The power assembly 8 includes a support plate 81 and a cover 82, and one side of the support plate 81 is provided with a first slot and a second slot. , the second card slot is arranged circularly along the edge of the support plate 81, a first card block matching with the first card slot is provided on one side of the cover 82, a slider 814 is provided in the second card slot, and a slider 814 is provided on the A connection block 813 is connected through the connection plate, and the side of the connection block 813 away from the connection plate is ...
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The invention discloses a movable blade-adjustable improved axial-flow type variable-frequency energy-saving fan. The fan comprises a fan shell, a power assembly and a base; the power assembly is installed in the fan shell, the base is installed under the fan shell, a ventilation port is formed in the fan shell, and the power assembly is fixedly installed in the ventilation port through a support frame. The invention further provides a control system of the movable blade-adjustable improved axial-flow type variable-frequency energy-saving fan. The control system comprises a console, a containing groove is formed in the console, a fixing plate is rotatably connected into the containing groove, a display groove is formed in one side of the fixing plate, and a display module is arranged in the display groove. According to the movable blade-adjustable improved axial-flow type variable-frequency energy-saving fan and the control system thereof, operation is convenient, and the structure is simple; the rotation speed of the fan is controlled by the console, and therefore the fan can achieve energy-saving and environment-friendly effects; in addition, due to the specific structure of the fan, the fan can be quickly disassembled, the angles and the quantity of fan blades of the fan can be adjusted, and then the requirements of a user are met.
Description
technical field [0001] The invention relates to the technical field of a variable frequency energy-saving fan and its control system, in particular to an improved axial-flow variable frequency energy-saving fan with adjustable moving blades and its control system. Background technique [0002] Most of the boiler induced draft fan systems in service or newly built thermal power generating units use adjustable blade axial flow fans, which mainly control the output air volume and wind pressure of the fan by changing the opening of the blades of the adjustable induced draft fan. And changes to meet the needs of power generation load adjustment and changes in thermal power plants. Compared with the traditional centrifugal fan and static blade adjustable induced fan, the movable blade adjustable induced fan can guarantee higher working efficiency within a certain blade opening adjustment range, so people usually think that it is suitable for in-service or new thermal power generat...
Claims
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IPC IPC(8): F04D29/64F04D29/36F04D25/08F04D27/00
CPCF04D25/08F04D27/004F04D27/008F04D29/362F04D29/646F05D2270/02F05D2270/311F05D2270/313
Inventor 董地
Owner 河北冀力重型机械设备有限公司