Gas purifying method and device

Abstract

A gas purifying method comprises the following steps that a fan draws gas into a box from an air inlet; particulate matter in the gas and charge particles generated by a charge particle generating device fully collide and are combined, so that the size of the particulate matter is increased; the particulate matter with the size increased is attached to a filtering device; the filtering device is heated by a heating device, so that the particulate matter attached to the filtering device is sterilized; and the fan exhausts the filtered gas out of an air outlet, circulation is carried out in thismanner, and indoor gas is continuously purified. The invention further provides a gas purifying device. The gas purifying device comprises the box and the fan, and the air inlet and the air outlet are formed in the two sides of the box correspondingly. The charge particle generating device, the filtering device and the heating device are fixedly arranged in the box, the charge particle generatingdevice and the filtering device are arranged at an interval, and the distance between the charge particle generating device and the filtering device is larger than or equal to 1 m. After the size ofthe particulate matter in the gas is increased, the particulate matter can be conveniently collected by the filtering device, and therefore the particulate matter in the gas is removed efficiently, and human health is benefited.

Description

technical field [0001] The invention belongs to the field of indoor gas filtration and purification, and in particular relates to a gas purification method and a gas purification device. Background technique [0002] With the increasing environmental pollution, technologies and equipment for purifying gas, sterilizing, and removing particulate matter have emerged as the times require. The existing gas purification methods are mainly: fabric filtration, electrostatic precipitation, spin separation, and water washing. [0003] The working principle of fabric filtration is that the particles in the main gas pass through polypropylene (PP), polyethylene (PE), polyacrylonitrile (PAN), polyimide (PI), polytetrafluoroethylene (PTFE), polyphenylene sulfide Ether (PPS), glass fiber or aramid and other raw materials are made into non-woven fabrics, and particles are attached to the non-woven fabrics to achieve the purpose of removing particles. However, the effective use time of non-w...

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Problems solved by technology

[0003] The working principle of fabric filtration is that the particles in the main gas pass through polypropylene (PP), polyethylene (PE), polyacrylonitrile (PAN), polyimide (PI), polytetrafluoroethylene (PTFE), polyphenylene sulfide Ether (PPS), glass fiber or aramid and other raw materials are made into non-woven fabrics, and particles are attached to the non-woven fabrics to achieve the purpose of removing particles. However, the effective use time of non-woven fabrics is short and frequent replacement of non-woven fabrics is required. Cloth, easy to cause waste of resources

The working principle of electrostatic deposition is that when the particles in the gas pass through an electric field, they apply charges to them, and the charged particles are attracted to the collector, so as to achieve the purpose of removing particles. The effect of particulate matter

The working principle of rotary separation is to increase the rotation effect and gravity of particles in the gas. For example, by increasing the tangential inertia, the centrifugal force is used to separate the particles from the gas, so as to achieve the purpose of removing particles. However, rotary separation can only separate large particles and cannot Separation of floating fine particles

The working principle of the water washing method is to operate through inertial collision, interception or diffusion to achieve the purpose of removing particulate matter, but the water washing method will cause secondary pollution to the water, and the water needs to be treated before it can be discharged, resulting in high costs

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