An electric actuator cooling system and method
An electric actuator and cooling system technology, applied in engine components, valve heating/cooling devices, mechanical equipment, etc., can solve the problems of loosening, no output of valve stem, interruption, forced to stop the boiler, etc. Cooling effect, cooling loss reduction, temperature lowering effect
Active Publication Date: 2019-12-06
SHANDONG ZHONGSHI YITONG GRP
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Problems solved by technology
Due to the frequent action, the failure of the blowing door occurs from time to time. Every failure will cause the blowpipe work to be interrupted. not a small economic loss
[0003] The inspection found that most of these faults were caused by the overheating of the electric actuator, such as the actuator lubricating oil was dry and the valve was stuck; the internal shaft sleeve of the actuator was stuck, slipped or loosened, resulting in no output of the valve stem; Action etc.
[0004] At present, the fan convection heat exchange method is commonly used for cooling. Since the ambient temperature near the blowing door is above 50°C, the cooling effect of the fan is not obvious.
Method used
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[0031] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0032] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.
[0033] As introduced in the background technology, there is a deficiency in the prior art that the cooling ef...
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The invention discloses a cooling system and method for an electric actuating mechanism, and solves an existing problem in the prior art that the cooling effect to the electric actuating mechanism isnot apparent. The technical scheme is that the cooling system comprises multiple storage tanks for accommodating liquid carbon dioxide, the storage tanks are connected to a convergence pipeline through an one-way valve and a cut-off valve; the convergence pipeline is connected with a cooling pipe with a plurality of small holes, and the convergence pipeline, adjacent to the cooling pipe, at one end is provided with a throttling hole, and a pressure reduction adjusting valve and a hand valve are installed between the throttling hole and the cut-off valve; and the outer side of the electric actuating mechanism is winded by the cooling pipe, and the liquid carbon dioxide is sprayed to the surface of the electric actuating mechanism through the small holes so as to reduce the temperature.
Description
technical field [0001] The invention relates to the technical field of power engineering, in particular to a cooling system and method for an electric actuator. Background technique [0002] In the temporary blowing system of the boiler, the function of the temporary blowing electric valve (hereinafter referred to as the temporary blowing valve) is to control and adjust the outlet pressure of the boiler superheater and the steam flow of the blowing pipe to ensure the blowing coefficient. Pro-blowing doors require quick opening, tight closing, flexible opening control, and easy operation. Under normal circumstances, the blowpipe is blown once every 20 minutes on average, and the door must be fully opened and fully closed once before blowing. According to statistics, the blowpipe must go through at least two stages, and in each stage, the blowing door must be continuously operated about 50 times. Due to the frequent action, the failure of the blowing door occurs from time to ...
Claims
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IPC IPC(8): F16K49/00F16K31/02
CPCF16K31/02F16K49/00
Inventor 刘浩杨建柱韩庆华宛磊王金龙
Owner SHANDONG ZHONGSHI YITONG GRP