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Conversion valve capable of achieving switching between cross and tee

A switching valve, three-way technology, applied in the field of switching valve, can solve the problems of high control time accuracy, increase system parts and costs, improve system uncertainty, etc., to achieve full market competitiveness, simple structure, simplification The effect of the control strategy

Pending Publication Date: 2019-09-24
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes the system have high requirements on the control time accuracy of each valve, and the control is complicated. At the same time, it also increases the system parts and costs, increases the system uncertainty, and reduces the reliability.

Method used

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  • Conversion valve capable of achieving switching between cross and tee
  • Conversion valve capable of achieving switching between cross and tee
  • Conversion valve capable of achieving switching between cross and tee

Examples

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Such as figure 1 As shown, it is a cross-sectional view of a switching valve capable of switching between four-way and three-way according to the present invention.

[0026] The switching valve includes a cylinder body 10 , a slide valve 30 disposed in the cylinder body 10 and a control assembly 20 for controlling the slide valve 30 to move left and right or stop. The control part 20 includes a drive part 21 for controlling the left and right movement of the spool valve 30 and a stop part 22 for controlling the stop of the spool valve 30;

[0027] The driving part 21 is a stepping motor, and the slide valve 30 includes a spool 31 that can move left and right, and a screw rod 32 that controls the movement of the spool 31 . The screw 32 is controlled to rotate in different directions through the transmission of the stepping mot...

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PUM

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Abstract

A conversion valve capable of achieving switching between a cross and a tee comprises a barrel, a sliding valve arranged in the barrel, and a control component used for driving the sliding valve to move right and left; the sliding valve comprises a valve core, and a connecting piece used for connecting the valve core with the control component; the valve core has the sealing ability, and can be used for isolating fluids at the right and left ends of the valve core; and the valve core is installed on the connecting piece, and controlled by the control component to move right and left; and the conversion valve has three states including a cross state, a right tee state and a left tee state according to the position where the valve core is located. The invention provides an effective and feasible conversion valve structure, so that the conversion requirements of the cross and the tee of a flow path are met; meanwhile, pipelines and control can be simplified, and the cost is reduced; and the system reliability is improved.

Description

technical field [0001] The invention relates to a switching control valve, in particular to a switching valve capable of switching between four-way and three-way. Background technique [0002] The single-stage refrigeration or heat pump equipment system is simple and efficient, but with the development of technology and social progress, the application scenarios are gradually becoming more complex, and the equipment functions are gradually diversifying. Therefore, the system now needs to be additionally designed with relevant branch circuits and control valves ( Valve group) to control the switching of the system to convert the operating status of the system to achieve scene matching or function conversion. [0003] At present, the most commonly used compound control valve in the refrigeration / heat pump system is a four-way reversing valve, which can realize the switching of two-phase communication on four channels to another combination of two-phase communication (that is, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/07
CPCF16K11/07
Inventor 吴建华李佳宸
Owner XI AN JIAOTONG UNIV
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