Multi-blade type gas flow adjusting and detecting device

A gas flow and detection device technology, applied in the direction of flow control, high-efficiency regulation technology, control/regulation system, etc., can solve the problems of unstable wind speed and inaccurate control of ventilation volume in the window, achieve precise linear control of ventilation volume, and simple structure , the effect of low production cost

Active Publication Date: 2021-08-17
淄博豪迈实验室装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the control air valve cannot realize the linear control of the exhaust air volume, the surface wind speed of the window is unstable, and the ventilation volume control is extremely imprecise

Method used

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  • Multi-blade type gas flow adjusting and detecting device
  • Multi-blade type gas flow adjusting and detecting device
  • Multi-blade type gas flow adjusting and detecting device

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Embodiment Construction

[0047] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0048] Such as Figure 1-7 As shown, a multi-leaf gas flow adjustment and detection device according to the present invention includes a variable air volume butterfly valve. The variable air volume butterfly valve includes a valve cylinder with both ends open, and is arranged in a hinged manner on the inner wall of the valve cylinder. The bottom edge of more than three triangular valve plates and the middle of the valve plate are hinged to the front end of the connecting rod, and the rear end of each connecting rod is hinged on the rectifier in an annular array, and the rectifier is provided with a guide slide hole, and the rectifier is set on the hard disk through the guide slide hole. On the quality line pipe; the rectifier is connected to the actuator; a number of static pressure holes are opened in the leeward side of the rectifie...

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Abstract

The invention discloses a multi-blade type gas flow adjusting and detecting device and belongs to the technical field of ventilation flow control. The device is characterized by comprising a variable-air-volume butterfly valve, the variable-air-volume butterfly valve comprises a valve cylinder with the two ends open, the bottom edge portions of three or more triangular valve blocks are annularly arranged on the inner wall of the valve cylinder in a hinged mode, the middles of the valve blocks are hinged to the front end of a connecting rod, the rear end of the connecting rod is annularly hinged to a rectifier in an array mode, and a guide sliding hole is formed in the rectifier. The rectifier is sleeved on a hard wire pipe through the guide slide hole; the rectifier is connected with the actuator; a plurality of static pressure holes are annularly formed in the leeside of the rectifier, and a plurality of air inlet holes are annularly formed in the windward side of the rectifier; a first flow sensor and a second flow sensor are respectively arranged in the air inlet hole and the static pressure hole; the first flow sensor and the second flow sensor are connected with the controller through wires, and the controller is connected with and drives the actuator to act. Linear control of the ventilation quantity can be realized through scientific structural design and a control method, and the control precision is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of ventilation flow control, and in particular relates to a multi-leaf gas flow adjustment and detection device. Background technique [0002] The ventilation variable air volume butterfly valve installed on the laboratory ventilation equipment is generally non-linearly controlled, and most of them realize the control of the ventilation volume of the fume hood through the wind speed sensor or the checkpoint circuit control unit and other auxiliary parts. Because the control air valve cannot realize the linear control of the exhaust air volume, the surface wind speed of the window is unstable, and the ventilation volume control is extremely imprecise. [0003] In view of this, the applicant designed this device, which can effectively solve the above-mentioned technical problems, realize linear control of ventilation volume, and greatly improve control accuracy through scientific structural design and control ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D7/06
CPCG05D7/0635Y02B30/70
Inventor 蔡振华杜明飞王登来姚进
Owner 淄博豪迈实验室装备有限公司
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