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Pendulum type on-off valve

An on-off valve and pendulum technology, applied in the field of high, medium and low pressure liquid flow pipelines, can solve problems such as leakage and easy wear and tear, and achieve the effects of high transmission efficiency, large force multiplier and simple structure

Inactive Publication Date: 2007-12-19
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Gate valves, ball valves, and butterfly valves have rigid contact, which is easy to wear and leak

Method used

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  • Pendulum type on-off valve
  • Pendulum type on-off valve

Examples

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Embodiment Construction

[0013] See the accompanying drawings: the pendulum switch valve in the figure includes a valve body 1, a switch valve 2, and a valve cover 3; wherein: the switch valve adopts a rotary valve that rotates around an axis outside the inner diameter, so that when the valve is fully opened, the inner diameter of the switch valve passes And the direction is completely consistent with the pipe hole; the valve is driven by a double-helix drive mechanism, which includes a motor 8, a screw 13 with a large-swing angle helical groove section, a small-swing angle helical groove section and a spline groove section, A helical sleeve, a splined sleeve and two thrust bearings (14) respectively corresponding to the helical groove section and the spline groove section, wherein the helical sleeve with a small rotation angle is keyed to the motor shaft installed outside the valve body through the end cover , there are thrust bearings 14 between the high-swing angle helical sleeve and the small-swing...

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Abstract

The invention relates to a kind of pendulum type switch valve. Its feature is that it adopts turn type valve moved around inner diameter with outer axes turn; the pass inner diameter and direction of the switch valve are consistent with the pore; the valve is driven by double-helix drive mechanism. The double helix drive mechanism includes electric machine, screw with two big-small helical groove sections and a spline groove section, scroll cover corresponded to the helical groove section and a spline groove section, spline housing and two block bearings. The big revolving lead angle scroll cover is connected to the electric machine revolution axis key installed out of the valve body by end cover. There are block bearings between the big revolving lead angle scroll cover and the small revolving turn lead angle scroll cover, the small revolving lead angle scroll cover and the spine housing. The double helix drive mechanism is connected to the valve by the small revolving lead angle scroll cover, connected to the valve body by spine housing. Its advantage is that the structure is simple; the transmission efficiency is high; the moment of the switch is big. It suits high pressure, middle pressure, and low pressure liquid flow pipeline, especially oil gas pipeline.

Description

technical field [0001] The invention belongs to high, medium and low pressure liquid flow pipelines, especially in the field of oil and gas pipeline transportation. technical background [0002] At present, valves with on-off and throttling functions include gate valves, globe valves, ball valves, butterfly valves, and throttle valves. However, ball gates and gate valves use a reduction mechanism to be controlled by a worm or planetary gear reducer, and the structure is complex. Butterfly valves and globe valves can cause turbulent flow and increase flow loss even when they are fully open. Gate valves, ball valves, and butterfly valves have rigid contact and are prone to wear and leakage. Contents of the invention [0003] The purpose of the present invention is to provide a pendulum switch valve. The valve is characterized by a double helix booster for driving the valve switch. It has the simplest structure and can generate a large closing pressure. The internal diamete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/20F16K31/04F16K31/44
Inventor 梁锡昌
Owner CHONGQING UNIV
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