Frequency conversion ventilator

A technology of ventilation device and fume hood, which is applied to ventilation systems, space heating and ventilation, heating and ventilation control systems, etc., can solve the problems of high initial installation cost and high cost of enterprises, and reduce initial installation costs and energy. The effect of loss

Inactive Publication Date: 2009-10-21
JWANDY SHANGHAI PHARMLAB CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be said to be almost perfect, but due to its high cost and hug...

Method used

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  • Frequency conversion ventilator
  • Frequency conversion ventilator
  • Frequency conversion ventilator

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Embodiment

[0012] like figure 1 and figure 2 As shown, it is a structural schematic diagram of a frequency conversion ventilation device provided by the present invention, including a medium pressure anti-corrosion fan 1 with a frequency conversion motor configuration (the medium pressure anti-corrosion fan 1 adopts a Siemens or TECO frequency conversion motor, and the impeller and worm gear of the medium-pressure anti-corrosion fan 1 The shell is made of polypropylene) and four fume hoods 2. The fume hood 2 is connected to the medium pressure anti-corrosion fan 1 through the polypropylene variable diameter pipeline. In order to reduce the system noise, a muffler is installed at the negative pressure end of the fan. The joint is connected by soft polypropylene flange to reduce the vibration transmission of the fan. An electric air valve 3 is connected between the fume hood 2 and the medium pressure anti-corrosion fan 1. The frequency conversion motor is connected to the frequency conver...

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Abstract

The invention relates to a frequency conversion ventilator, which comprises a medium-pressure anticorrosion fan with a frequency conversion motor and at least one ventilation cabinet, and is characterized in that: the ventilation cabinet is connected with the medium-pressure anticorrosion fan through a polypropylene reducing pipeline; an electric air valve is connected between the ventilation cabinet and the medium-pressure anticorrosion fan; the frequency conversion motor is connected with a frequency conversion control device; and one end of a frequency conversion and air valve control circuit is connected with the frequency conversion control device, while the other end is connected with the electric air valve through an air valve executing motor, and the frequency conversion and air valve control circuit is arranged in the ventilation cabinet. The frequency conversion ventilator has the advantages of meeting the requirements of modern laboratory ventilation systems, reducing energy loss of air conditioners and initial installation charge for users and enterprises, and having high-efficiency and energy-saving system operation. The frequency conversion ventilator only needs to add a small quantity of devices on the basis of conventional ventilation systems, and is not only suitable for initial installation users, but also suitable for transforming old systems.

Description

technical field [0001] The invention relates to a frequency conversion ventilation device, which is used for exhaust gas discharge in pharmaceutical and chemical laboratories, and belongs to the technical field of ventilation devices. Background technique [0002] In recent years, chemical synthesis laboratories have sprung up into high-tech parks, and the structure of the fume hood exhaust device is mostly controlled by the control switch to directly start the fan exhaust. However, most units lack professional and technical personnel to design the system, so there are defects such as small air volume, high noise, short safe operation time, serious waste of electric energy, large negative pressure, and huge air-conditioning cooling and heating losses. It is a headache for many business leaders. Because this solution has the advantages of simple structure and low initial installation cost, it is still adopted by most enterprises. [0003] There is also a fully automatic ada...

Claims

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Application Information

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IPC IPC(8): F24F7/06F24F11/02F24F13/24G05B19/04
CPCY02P80/10
Inventor 蔡世美
Owner JWANDY SHANGHAI PHARMLAB CO LTD
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