CN205461796U - Efficient handling of organic waste gas VOCS's device - Google Patents

Abstract

The utility model provides an efficient handling of organic waste gas VOCS's device, belongs to exhaust -gas treatment and purification field, and the top of reactor is equipped with catalyst packing mouth, reactor installation catalyst packing layer, the upper and lower end of reactor lateral wall sets up air inlet and gas vent respectively, and the reactor bottom sets up the outlet, the reactor advances, gas vent punishment do not sets up the VOCS on -line monitoring probe, the gas vent is run -on trachea and muffler respectively, installs discharge valve on the blast pipe, installs air return valve on the muffler, and the air inlet is connected to the other end of muffler, VOCS on -line monitoring probe, drain valve, discharge valve, air return valve are connected with PLC electrical system respectively. The utility model has the advantages that: the unequal nano -pore of level, the high -efficient catalytic material of tombarthite molecular sieve are selected to pack by VOCS on -line monitoring probe and PLC control system linkage, become CO2 and H20 with the complete oxidation of VOCS under the lower temperature, this material long service life, and replacement cycle is long.

Description

Efficiently process organic exhaust gas VOCSDevice

Technical field:

This utility model belongs to exhaust-gas treatment and purifier, efficiently processes organic exhaust gas VOC particularly to one_S Device.

Background technology:

The industry discharges such as petrochemical industry, chemical industry, coating and application, packages printing, electronic cables, high-end machine-building Tail gas often contain VOC (hereinafter referred to as VOC_S), VOC_SEasily environment and human body are caused Harm, it is therefore necessary to implement to process to reduce its content accordingly.Existing VOC_SProcess mainly has following several Form:

1, scrubbing tower is common VOC_SProcessing means, is by VOC_SIt is dissolved in liquid phase and removes from gas phase, used Cleaning mixture be typically water, the most therefore, it is adaptable to scrubbing tower process VOC_SIt is necessary to have higher is molten in water Xie Du, the most non-water-soluble VOC_SIt is not appropriate for processing with scrubbing tower.In addition, washing is utilized Tower processes VOC_SIt is necessarily accompanied with containing VOC_SThe generation of waste water, and waste water is also required to through extra processing routine And produce cost for wastewater treatment, and if waste water the most externally discharges without dealing carefully with, the VOC in waste water_SStill can be certainly So loss and produce stench.

2, carbon molecular sieve round adsorber is also commonly used for processing VOC_S, by carbon molecular sieve round adsorber Adsorbent, reclaims partial organic substances absorption, and the gas after absorption is discharged in air, although Ke Yishi The first time purified treatment of existing waste gas, but only administer waste gas by carbon molecular sieve round adsorber, it is impossible to obtain The effect that waste gas is fully cleaned up, and the adsorption effect of carbon molecular sieve round adsorber is gradually deteriorated, and desorption rate is low, The final Organic substance response rate is low.

3、VOC_SIt is possible with bioanalysis to be acted upon, i.e. utilizes the Digestion of microorganism to VOC_SCarry out point Solving, but bioanalysis takes up an area relatively big, and microorganism culturing needs more time, therefore setup time is longer.

4, the processing mode that suction/desorption column collocation steam condensation is reclaimed also is utilized, i.e. first with suction/desorption column Adsorb, saturated after, utilize steam to carry out inhaling/desorption the operation of desorption column, make VOC_SPressed from both sides by steam Band departs from suction/desorption column, condenses subsequently, allows VOC_SWith condensed moisture from, with by VOC_SRecycled. Such steam condensation way of recycling is only applicable to the VOC of high concentration, single component_SProcess operation.

From the foregoing, it will be observed that the VOC being currently known_SProcessing means the most still has many weak points, the most organic Exhaust-gas treatment field urgent need is a kind of simply, maintenance cost is relatively low and can effectively process VOC_SDevice.

Utility model content:

The purpose of this utility model is to overcome above-mentioned defect, it is provided that a kind of efficiently process organic exhaust gas VOC_S's Device, its simple in construction, maintenance cost are low, it is possible to achieve organic exhaust gas environmental protection processes, and handling rate is up to 99%.

The purpose of this utility model is achieved through the following technical solutions: a kind of efficiently process organic exhaust gas VOC_S Device, it is characterised in that: it includes reactor, catalyst filling layer, VOC_SOn-line monitoring probe and PLC Electric-control system；The top of described reactor is provided with catalyst filling mouth, installs catalyst filling layer in reactor； The sidewall upper of described reactor arranges air inlet, and the side wall lower ends of reactor arranges air vent, the end of reactor Portion arranges discharge outlet；Air inlet and exhaust ports at reactor are respectively provided with VOC_SOn-line monitoring is popped one's head in；Aerofluxus Mouth connects exhaustor and muffler respectively, exhaustor is installed air bleeding valve, muffler installs back air valve, return-air The other end of pipe connects air inlet；VOC_SOn-line monitoring probe, drain valve, air bleeding valve, return-air valve respectively with PLC Electric-control system connects.

The outer wall suit thermal insulation layer of described reactor.

Described catalyst filling layer is the level not nano-pore of grade, rare earth containing zeolite efficient catalytic material.

Advantage of the present utility model and providing the benefit that:

1, reactor is SS304 and above stainless steel, can be cylinder or cuboid structure, liner PTFE Material, all opening parts are respectively provided with PTFE material sealing ring, to ensure that device is absolutely not corroded and No leakage, Heat insulation foam is set outside reactor.

2, it is equipped with VOC at air inlet and air vent_SOn-line monitoring is popped one's head in, and links with PLC control system, can Treatment effect is checked in real time from PLC control panel.

3, air vent VOC_SOn-line monitoring probe and air bleeding valve and PLC control system linkage, as monitoring display processes The most up to standard, air vent will cut out voluntarily, and bypass return-air valve is opened, VOC_SCome back to air inlet, enter reaction Device processes again.

4, by the VOC of basis in this device reaction device_SNano-pore, rare earth that concentration Selective filling level does not wait divide Son sieve efficient catalytic material, this material can be at a lower temperature by VOC_SIt is completely oxidized to CO₂And H₂0, and this material Material service life at about 3 years, the replacement cycle is long.

5, this device is applicable to waste gas organic concentration is 500-5000mg/m³, air speed is 5000-20000H^-1, Operation temperature less than 500 DEG C, purification efficiency can be to 99%.

Accompanying drawing illustrates:

Fig. 1 is structural representation of the present utility model.

Wherein: 1-reactor, 2-air inlet VOC_SOn-line monitoring is popped one's head in, 3-aerofluxus VOC_SOn-line monitoring is popped one's head in, 4-PLC electric-control system, 5-catalyst filling mouth, 6-air inlet, 7-air vent, 8-air bleeding valve, 9-drain valve, 10-return-air valve, 11-thermal insulation layer, 12-catalyst filling layer, 13-exhaustor, 14-muffler, 15-discharge outlet.

Detailed description of the invention:

Embodiment: efficiently process organic exhaust gas VOC as it is shown in figure 1, a kind of_SDevice, the top of described reactor 1 Portion is provided with catalyst filling mouth 5, installs catalyst filling layer 12 in reactor 1, according to VOC_SConcentration selects to fill out Filling nano-pore, rare earth containing zeolite efficient catalytic material that level does not waits, this material can be at a lower temperature by VOC_S It is completely oxidized to CO₂And H₂0, and this materials'use life-span was at about 3 years, the replacement cycle is long；Described reactor 1 Sidewall upper air inlet 6 is set, the side wall lower ends of reactor 1 arranges air vent 7, and the bottom of reactor 1 is arranged Discharge outlet 15；It is respectively provided with air inlet VOC at the air inlet 6 and air vent 7 of reactor 1_SOn-line monitoring probe 2 Hes Aerofluxus VOC_SOn-line monitoring is popped one's head in；Air vent 7 connects exhaustor 13 and muffler 14 respectively, and exhaustor 13 is pacified Dress air bleeding valve 8, muffler 14 installs back air valve 10, and the other end of muffler 14 connects air inlet 6；Air inlet VOC_S On-line monitoring probe 2, aerofluxus VOC_SOn-line monitoring probe 3, drain valve 9, air bleeding valve 8, return-air valve 10 respectively with PLC electric-control system 4 connects；The outer wall suit thermal insulation layer of reactor 1.

Operation principle:

Organic exhaust gas VOC_SEnter reactor 1 from air inlet 6, through catalyst filling layer 12, aoxidize Reaction, by VOC_SIt is completely oxidized to CO₂And H₂0, VOC_SOn-line monitoring probe 2 can monitor VOC_SEnter reaction The concentration of device, VOC_SOn-line monitoring probe 3 can monitor VOC_SConcentration after treatment, and from the automatically controlled system of PLC 4 touch screens of uniting can show handling rate and VOC_SNumerical value, if processing up to standard, air bleeding valve 8 and drain valve 9 are certainly Dynamic unlatching, the gas after emission treatment and the remaining water of reaction, now return-air valve 10 is automatically switched off；If place Managing the most up to standard, return-air valve 10 automatically turns on, VOC_SReturn to air inlet again process, now air bleeding valve 8 and row Water valve 9 is automatically switched off.Catalyst filling layer 12 can be according to VOC_SConcentration and treating capacity fill different levels and Quantity, catalyst service life is about 3 years, if VOC after Chu Liing_SOn-line monitoring probe 3 repeats not reach Mark, then need shutdown inspection or catalyst filling 12 to lose efficacy, and needs to change.

Claims (3)

1. an efficient process organic exhaust gas VOC_SDevice, it is characterised in that: it includes reactor, catalysis Agent packing layer, VOC_SOn-line monitoring probe and PLC electric-control system；The top of described reactor is provided with catalyst and fills out Material mouth, installs catalyst filling layer in reactor；The sidewall upper of described reactor arranges air inlet, reactor Side wall lower ends air vent is set, the bottom of reactor arranges discharge outlet；Air inlet and air vent at reactor Place is respectively provided with VOC_SOn-line monitoring is popped one's head in；Air vent connects exhaustor and muffler respectively, and exhaustor is installed Air bleeding valve, muffler installs back air valve, and the other end of muffler connects air inlet；VOC_SOn-line monitoring probe, Drain valve, air bleeding valve, return-air valve are connected with PLC electric-control system respectively.

2. a kind of efficiently process organic exhaust gas VOC as claimed in claim 1_SDevice, it is characterised in that: institute State the outer wall suit thermal insulation layer of reactor.

3. a kind of efficiently process organic exhaust gas VOC as claimed in claim 1_SDevice, it is characterised in that: institute Stating catalyst filling layer is the level not nano-pore of grade, rare earth containing zeolite efficient catalytic material.