CN205288013U

CN205288013U - Volatile organic compounds adsorbs integrated device of concentration and plasma decomposition in air

Info

Publication number: CN205288013U
Application number: CN201520972045.5U
Authority: CN
Inventors: 杜长明
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-21
Filing date: 2015-11-21
Publication date: 2016-06-08
Anticipated expiration: 2025-11-21

Abstract

The utility model relates to a volatile organic compounds adsorbs integrated device of concentration and plasma decomposition in air, including adsorbing unit and plasma resolution element, the contaminated air who contains volatile organic compounds is filtered by the filter and runner adsorber absorption back, and the air obtains purifying the back high altitude and discharges, the regenerated heat air that utilizes the electrical heating to form carries out desorption regeneration to the runner adsorber, and the concentrated volatile organic compounds air admission plasma purifier degradation mineralize mineralization of production becomes carbon dioxide and water to carry out waste heat recovery, festival energy saving bad news to tail gas. The utility model discloses the absorption runner that will have cellular texture combines with plasma purifier, is applicable to very much big amount of wind low concentration organic waste gas and purifies.

Description

The integrating device that a kind of volatile organic matter in air Adsorption Concentration and plasma decompose

Technical field

The invention belongs to environmental protection technical field, relate to a kind of volatile organic matter in air Adsorption Concentration and the integrating device of plasma decomposition.

Background technology

Mobile pollution source (such as automobile), stationary source (such as factory) discharge the pollutant in waste gas and have multiple noxious substance, the serious harm mankind, ecological environment. Nitrogen oxides, oxysulfide, hydrogen sulfide, volatile organic matter are huge and important pollutant kinds. Due to its high volatility, volatile organic matter causes that rapid evaporation enters earth atmosphere, cause various impact, for instance produce photochemical fog, secondary particulate, Tropospheric ozone. Volatile organic matter also can pass through to make consumption stratospheric ozone, thus increase from global warming. Some volatile organic matters are noxious substances, can produce foul odour; Other have carcinogenesis, exacerbate the volatile organic matter impact on human health.

The Traditional control method containing volatile organic compounds, including absorption, heat catalytic oxidation, membrance separation, biological respinse, photocatalysis. These methods have drawbacks in that when process low concentration volatile organic matter time, these method sexual valences are relatively low, and are difficult to operate. Along with airborne release restriction is increasingly stricter, people need a substitute technology to overcome these weakness.

Summary of the invention

The purpose of this utility model is to provide a kind of volatile organic matter in air Adsorption Concentration and the integrating device of plasma decomposition, including absorbing unit and plasma resolving cell;

Described absorbing unit includes filter, runner adsorber and air-introduced machine, filtering air inlet is connected with collecting contaminated air pipeline, runner adsorber is built with honeycomb-shaped zeolite, molecular sieve or acticarbon, it is divided into adsorption zone, thermal desorption district and cooling zone, rotate with 2-8 rotary speed per hour under the driving of buncher, adsorption zone, thermal desorption district and cooling zone are correspondingly provided with absorption air inlet respectively, absorption gas outlet, thermal desorption air inlet, thermal desorption gas outlet, cooling air inlet and cooling gas outlet, and respectively with contaminated air, cooling air, the pipeline of regenerated heat air is connected, filter outlet mouth adsorbs air inlet with runner adsorber and is connected, and runner adsorber absorption gas outlet is connected with air-introduced machine,

Described plasma resolving cell includes heat exchanger, electric heater, air-introduced machine and plasma purifier, runner adsorber cooling air inlet is connected with collecting cooling air line, heat exchanger adopts indirect type heat exchanger, it is provided with regeneration air inlet, regeneration gas outlet, tail gas air intake and tail gas gas outlet, runner adsorber cooling gas outlet regenerates air inlet with heat exchanger and is connected, heat exchanger regeneration gas outlet is connected with electric heater air inlet, electric heater gas outlet is connected with runner adsorber thermal desorption air inlet, plasma purifier adopts gliding arc discharge reactor or packed bed dielectric barrier discharge reactor, runner adsorber thermal desorption gas outlet is connected with plasma purifier air inlet by blower fan, plasma purifier gas outlet is connected with heat exchanger tail gas air inlet.

The purification method of the integrating device that above-mentioned a kind of volatile organic matter in air Adsorption Concentration and plasma decompose, comprise the following steps: 1) after contaminated air containing volatile organic matter removes particulate matter or stickum by filter, enter the adsorption zone of runner adsorber, in contaminated air, the adsorbed agent of contained volatile organic matter is adsorbed, after air is purified, enter air-introduced machine high altitude discharge by adsorbing gas outlet, 2) along with the rotation of runner adsorber, adsorbing saturated runner adsorber and enter into thermal desorption district, with regenerated heat air contact process, volatile organic matter is got off to be changed into concentration volatile organic matter by thermal desorption, and runner adsorber is regenerated, runner adsorber after regeneration forwards cooling zone to, after cooling air heat-exchange cooling, returns to adsorption zone, completes the cyclic process of primary sorption-thermal desorption-cooling, be generally the 1/10-1/20 of the contaminated air air quantity of process due to the air quantity of regenerated heat air, regenerative process thermal desorption gas outlet volatile organic matter in air concentration is 10-20 times of the contaminated air concentration processed, 3) air containing concentration volatile organic matter is sent into plasma purifier by air-introduced machine, at a large amount of active specy (charged particles, excited state species, free radical, electronics and photon) effect under, volatile organic matter in air is thoroughly degraded and mineralising is transformed into carbon dioxide and water small-molecule substance, high altitude discharge after carrying out heat exchange in heat exchanger with the air coming self-rotation wheel adsorber cooling zone from the tail gas of plasma purifier discharge, the heating of the waste heat recovery through heat exchanger of the air of runner adsorber cooling zone and electric heater, temperature rises to 200 DEG C, it is changed into regenerated heat air, enter runner adsorber thermal desorption district, complete a thermal desorption-plasma catabolic process.

The adsorption runner with alveolate texture is decomposed combination with plasma by this utility model, is highly suitable for large-wind-volume low-concentration organic exhaust gas and purifies.

Accompanying drawing explanation

Accompanying drawing is structural representation of the present utility model.

In figure: 1 filter, 2 runner adsorbers, 3 air-introduced machines, 4 heat exchangers, 5 electric heaters, 6 air-introduced machines, 7 plasma purifiers.

Detailed description of the invention

Below in conjunction with drawings and Examples, this utility model is described further.

With reference to accompanying drawing, building a set of Adsorption Concentration and the integrating device of plasma decomposition, runner adsorber diameter 200mm, thickness 400mm, adsorbent selects cellular M-13 molecular sieve, and plasma decomposer adopts knife structure electrode gliding arc discharge reactor; To containing toluene 300mg/m³, 1.8m/s contaminated air purify, by this device purify once, toluene removal reaches 97%.

Claims

1. the integrating device that volatile organic matter in air Adsorption Concentration and plasma decompose, is characterized in that including: absorbing unit and plasma resolving cell;