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Spring type energy accumulator in turbine hydraulic system

A hydraulic system and spring-type technology, which is applied in the direction of machines/engines, mechanical equipment, engine components, etc., can solve the problems of close heat source, unfavorable detection and supplementary gas, high installation position, etc., and achieve the effect of ensuring normal operation

Inactive Publication Date: 2011-08-31
SHANGHAI HUIYI CONTROL SYST
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  • Summary
  • Abstract
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Problems solved by technology

[0004] 2. The gas-filled piston accumulator is generally installed on the valve actuator, because the valve position of each steam turbine is different according to the power generation. Some valve actuators are installed at a higher position and are relatively close to the heat source. Facilitate detection and replenishment

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  • Spring type energy accumulator in turbine hydraulic system
  • Spring type energy accumulator in turbine hydraulic system
  • Spring type energy accumulator in turbine hydraulic system

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Embodiment Construction

[0021] The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings, but the present embodiments are not intended to limit the present invention, and any similar structures and similar changes of the present invention should be included in the protection scope of the present invention.

[0022] Depend on figure 1 , figure 2 As shown, the spring type accumulator in the steam turbine hydraulic system provided by the embodiment of the present invention is characterized in that it includes in the cylinder 8 from top to bottom: a spring seat end cover 13, a spring seat 10, a spring 9. Piston 7 covered with combined sealing ring 6 and piston support ring 5, connecting flange 1 covered with retaining ring 4 and O-shaped sealing ring 3; The end cover metal filter screen 15 fixed with the end cover pressing plate 14, the upper end of the spring seat 10 is provided with the spring seat metal filter screen 16 fixed by ...

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Abstract

The invention discloses a spring type energy accumulator in a turbine hydraulic system, relates to the technical field of hydraulic energy storage, and solves the technical problems of installation, maintenance and service life of the energy accumulator in the hydraulic system. The spring type energy accumulator comprises a spring seat end cover, a spring seat, a spring, a piston sleeved with a support ring for combining a sealing ring and the piston, and a connecting flange sleeved with a retainer ring and the sealing ring, which are arranged in a cylinder in turn from top to bottom; the spring seat end cover and the connecting flange are fixed in the cylinder respectively; and the spring seat end cover and the spring seat are provided with dustproof structures. The spring type energy accumulator has the characteristics of convenient installation, stable work, easy maintenance and long service life.

Description

technical field [0001] The invention relates to hydraulic energy storage technology, in particular to a spring accumulator technology mainly used in the hydraulic system of a steam turbine digital electro-hydraulic adjustment system (DEH adjustment system). Background technique [0002] At present, the accumulators used in the hydraulic system in the steam turbine digital electro-hydraulic regulating system (DEH regulating system) are all gas-charged accumulators, including bladder-type accumulators and gas-filled piston-type accumulators. Among them, the function of the gas-filled piston accumulator is to absorb the instantaneous increase of oil discharge when the actuator moves when the steam turbine requires the valve to close quickly due to failure and other reasons, so as to prevent the oil discharge back pressure from being too high, so as to ensure the rapid closing of the valve. . Usually the gas-filled piston accumulator is installed directly on the actuator. Of c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D17/26
Inventor 陈建华吴涛
Owner SHANGHAI HUIYI CONTROL SYST
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