An electric high temperature and high pressure water cooling regulating butterfly valve

Abstract

The invention discloses an electric high-temperature and high-pressure water-cooled regulation butterfly valve, and belongs to the technical field of design of water-cooled butterfly valves. The electric high-temperature and high-pressure water-cooled regulation butterfly valve comprises a valve clack, valve bodies, valve clack shafts, a rotation mechanism and a position display mechanism. Cooling water passageways formed by spiral round steel are arranged in the valve clack and valve body water jackets. The valve clack shafts include the first valve clack shaft and the second valve clack shaft. The valve clack is connected with the position display mechanism through the first valve clack shaft. The valve clack is connected with the rotation mechanism through the second valve clack shaft. Regulation and rotation of the valve clack are remotely controlled by an electric actuation barrel. The rotation angle of the butterfly valve is converted into an electric pulse through a rotation encoder and is output in the form of a digital quantity, and therefore precise control over the opening degree of the butterfly valve is achieved. The water-cooled butterfly valve can adapt to regulation of high-temperature and high-pressure gas pipelines in the industry; meanwhile, remote electric control can be achieved, and the electric high-temperature and high-pressure water-cooled regulation butterfly valve is safe, reliable and high in precision; and when the butterfly valve breaks down, troubleshooting, maintenance and replacement can be conveniently and rapidly conducted through the electric actuation barrel and the rotation encoder, cost is low, the electric high-temperature and high-pressure water-cooled regulation butterfly valve is convenient to use and saves time, and experiments are not influenced.

Description

technical field [0001] The invention belongs to the technical field of water-cooled butterfly valve design, and in particular relates to an electric high-temperature and high-pressure water-cooled regulating butterfly valve. Background technique [0002] Most of the existing butterfly valves are valve devices that combine the valve body, valve stem and valve disc. The basic electric actuator on the valve stem controls the rotation of the valve stem, and then controls the rotation of the valve disc. Can be used in low temperature pipes in industry. In the prior art, some water-cooled butterfly valves are also designed for high-temperature pipelines. The valve disc and the water-cooling jacket of the valve body of this type of water-cooled butterfly valve are both a simple cavity, and the flow path in the cavity does not have a spiral change. The effect is poor; this kind of water-cooled butterfly valve is easy to deform in the high-pressure environment, and its use has certa...

AI Technical Summary

Problems solved by technology

In the prior art, some water-cooled butterfly valves are also designed for high-temperature pipelines. The valve disc and the water-cooling jacket of the valve body of this type of water-cooled butterfly valve are both a simple cavity, and the flow path in the cavity does not have a spiral change. The effect is poor; this kind of water-cooled butterfly valve is easy to deform in the high-pressure environment, and its use has certain limitations; at the same time, there are different mechanisms such as worm gear and gear in the actuator of the existing electric butterfly valve, and there are certain problems in actual use. Empty travel, poor precision; and, the existing electric water-cooled butterfly valves are all driven by basic electric actuators, that is, controlled by the 4 to 20mA DC control signal of the regulating system, which has high cost and complex structure

For engine combustion chambers with harsh environments, the adjustment performance is poor during the test, and the process of troubleshooting and maintenance is complicated. Most of the butterfly valves need to be returned to the manufacturer for maintenance, which is a waste of labor, time and money. When testing the engine combustion chamber, the butterfly valve When there is a problem and needs to be returned to the manufacturer, the test must be stopped, and it takes a certain amount of time to start the high-power air compressor and add air to the test state through the electric heater. The equipment consumes a lot of electricity, the test consumes a lot of money, and it is easy to delay Experimental time affects the progress of scientific research

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