Two-stage flow regulating valve

A flow regulating valve and valve body technology, applied in valve devices, sliding valves, mechanical equipment, etc., can solve the problems of limited torque output of stepping motors, difficult disassembly, high cost, etc., to reduce processing difficulty, convenient disassembly, and reduce weight Effect

Active Publication Date: 2015-03-25
江苏省阀门产品质量监督检验中心
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In some cases where the flow control accuracy is high, since the traditional valve only has a single-stage valve plug assembly, the adjustment of the valve can only rely on the rotation of a single valve stem to drive the valve plug to adjust the valve flow. , and for the control of valve precision, it all depends on the rotation precision of the valve stem;
[0003] In order to improve the accuracy, many manufacturers generally use stepping motors for driving. For some workshops with poor working conditions, the precision electronic machinery with poor environmental tolerance will be greatly affected, and it is easy to cause damage to insensitive settings. possible, while the torque output of the stepper motor is limited, and the cost is relatively high;
[0004] At the same time, traditional valves are assembled with threads, and disassembly will become more difficult when encountering more impurities.

Method used

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Embodiment Construction

[0032] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0033] Such as figure 1 Or 2, a two-stage flow regulating valve, including a valve body 1, a valve plug assembly, the valve stem 3 is driven by the valve plug 4 to open or close the flow passage of the valve, and the valve plug assembly includes a first-stage valve plug assembly and a second valve plug assembly. stage valve plug assembly;

[0034] The first-stage valve plug assembly includes a valve sleeve 5 and a driving head 2. The valve sleeve 5 is a hollow cylinder. Cavity, the valve sleeve 5 is slidingly connected with the valve body 1, the drive head 2 is connected with the valve body 1 in rotation, the inner wall of the valve sleeve 5 is connected wit...

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Abstract

The invention discloses a two-stage valve. A primary valve plug assembly and a secondary valve plug assembly coaxially installed in the primary valve plug assembly are independently used for adjustment, the structure is simple, compared with a traditional valve of a single-stage valve plug assembly structure, the two-stage valve is better in accuracy, the adjusting density of the primary adjusting valve plug assembly is A, the adjusting density of the secondary adjusting valve plug assembly is B, the adjusting density of the valve is A * B, adjustment is more precise, and the adjusting density of the traditional valve is only A or B.

Description

technical field [0001] The invention relates to a two-stage flow regulating valve, in particular to a valve capable of performing two-stage flow regulation. Background technique [0002] In some cases where the flow control accuracy is high, since the traditional valve only has a single-stage valve plug assembly, the adjustment of the valve can only rely on the rotation of a single valve stem to drive the valve plug to adjust the valve flow. , and for the control of valve precision, it all depends on the rotation precision of the valve stem; [0003] In order to improve the accuracy, many manufacturers generally use stepping motors for driving. For some workshops with poor working conditions, the precision electronic machinery with poor environmental tolerance will be greatly affected, and it is easy to cause damage to insensitive settings. possible, while the torque output of the stepper motor is limited, and the cost is relatively high; [0004] At the same time, traditi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/00F16K3/314F16K3/30
CPCF16K3/243F16K3/30F16K3/314
Inventor 陈凌王琰任琪程晓
Owner 江苏省阀门产品质量监督检验中心
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