CN210125274U - Molecular sieve rotating wheel module for waste gas purification equipment and integrated waste gas purification equipment - Google Patents
Molecular sieve rotating wheel module for waste gas purification equipment and integrated waste gas purification equipment Download PDFInfo
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- CN210125274U CN210125274U CN201920207444.0U CN201920207444U CN210125274U CN 210125274 U CN210125274 U CN 210125274U CN 201920207444 U CN201920207444 U CN 201920207444U CN 210125274 U CN210125274 U CN 210125274U
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Abstract
The utility model provides a molecular sieve runner module and integrated waste gas purification equipment for waste gas purification equipment, including molecular sieve runner and with the heat transfer device that the molecular sieve runner set up relatively, be provided with adsorption zone, cooling zone and desorption district on the molecular sieve runner, one side of molecular sieve runner reverse heat transfer device is provided with adsorbs entry and desorption export, one side that the molecular sieve runner is relative with heat transfer device is provided with adsorbs export, desorption entry and wind cooling mouth; the air cooling port is communicated with one end of the heat exchange device, and the adsorption inlet is communicated with the other end of the heat exchange device. The utility model provides an integration exhaust gas purification equipment, the integration is good, scientific and reasonable with preceding filter module, absorption runner module, heat transfer runner module and catalytic oxidation module effectively integrate, compact structure, safe and reliable, occupation space is littleer, convenient operation and use, the purification efficiency of waste gas is high.
Description
Technical Field
The utility model belongs to the technical field of exhaust-gas treatment, especially, relate to a molecular sieve runner module and integration exhaust-gas purification equipment for exhaust-gas purification equipment.
Background
With the rapid development of economy in China, the air pollution situation becomes more and more serious, Volatile Organic Compounds (VOCs) are combined with other pollutants in the air, and secondary Organic particles or Secondary Organic Aerosol (SOA) generated under the irradiation of sunlight belongs to a secondary pollution source. It can directly enter and adhere to upper and lower respiratory tract and lung lobes of human body, and respectively deposit in upper and lower respiratory tract and pulmonary alveolus, causing rhinitis, bronchitis and other respiratory system diseases, and can induce cancer even if it is in this environment for a long time. The purification of organic waste gases is divided into a recovery type technique and a destruction type technique. The recovery type techniques include absorption, adsorption, condensation, separation, etc.; the destroying technology comprises combustion, biodegradation, photocatalysis, plasma, ozone and the like, the zeolite rotating wheel concentration device belongs to the combination of the zeolite rotating wheel concentration device and the zeolite rotating wheel concentration device, an adsorption area and a desorption area are separated in the zeolite rotating wheel concentration device, the zeolite rotating wheel continuously rotates to pass through the adsorption area and the desorption area, waste gas generated in the process is introduced into the adsorption area, organic substances in the waste gas are adsorbed by the zeolite rotating wheel and rotate to the zeolite rotating wheel in the desorption area, the organic substances adsorbed on the zeolite rotating wheel are desorbed by introduced desorption air flow, and desorption air flow with the desorbed organic substances is introduced into the incinerator for incineration treatment. Therefore, through the rotation operation of the zeolite rotating wheel, the zeolite rotating wheel continuously repeats the steps of adsorption and desorption, and organic substances contained in the waste gas passing through the zeolite rotating wheel concentration device are reduced to the emission standard and then can be discharged into the atmosphere.
The existing waste gas treatment device for volatile organic compounds can respectively comprise a zeolite runner module, a desorption module and a post-treatment module, but the waste gas treatment device is of a split structure, the integration of each module is poor, the occupied area of the device is large in the using process, the waste gas treatment efficiency is low, the required labor cost is large, and an all-in-one machine product with a reasonable layout cannot be formed. In addition, a zeolite rotating wheel adsorption module in the prior art usually adopts a fixed bed heat accumulating type heat exchanger, two beds are required to maintain continuous heat transfer, and the flow direction in the heat exchanger is changed through a switching valve, so that the heat exchange efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to foretell technical problem, provide a molecular sieve runner module and exhaust gas purification equipment for integration exhaust gas purification equipment.
In order to achieve the above object, the utility model discloses a technical scheme be:
a molecular sieve runner module for integrated waste gas purification equipment comprises a molecular sieve runner and a heat exchange device arranged opposite to the molecular sieve runner, wherein the molecular sieve runner is provided with an adsorption area, a cooling area and a desorption area, one side of the molecular sieve runner reverse heat exchange device is provided with an adsorption inlet for conveying waste gas and a desorption area outlet for outputting the waste gas desorbed by the molecular sieve runner, and one side of the molecular sieve runner opposite to the heat exchange device is provided with an adsorption outlet for outputting gas adsorbed by the molecular sieve runner, a desorption area inlet for conveying high-temperature gas to the molecular sieve runner and a cooling area outlet for outputting low-temperature gas passing through the molecular sieve runner; the outlet of the cooling area is communicated with one end of the heat exchange device, and the adsorption inlet is communicated with the other end of the heat exchange device, so that the low-temperature gas output by the outlet of the cooling area is heated by the heat exchange device to be high-temperature gas and then is output by the inlet of the desorption area.
The heat exchange device can be a heat exchange rotating wheel, a plate type heat exchanger or a tubular heat exchanger.
Preferably, the heat exchange device is a heat exchange rotating wheel; the heat exchange rotating wheel is provided with a heat release area, the outlet of the cooling area is communicated with the gas input end of the heat release area positioned at one end of the heat exchange rotating wheel, and the inlet of the desorption area is communicated with the gas output end of the heat release area positioned at the other end of the heat exchange rotating wheel. The heat exchange runner can adjust the heat exchange efficiency by adjusting the rotating speed.
Preferably, a third shell is sleeved outside the heat exchange rotating wheel, the heat exchange rotating wheel is placed in the middle of the third shell, the first cavity and the second cavity are respectively and adjacently arranged on two opposite side surfaces of the heat exchange rotating wheel, two openings used for communicating one end of the heat exchange rotating wheel with the first cavity and communicating the other end of the heat exchange rotating wheel with the second cavity are respectively arranged on the two side surfaces, the cooling area outlet is formed in the second cavity, and the desorption area inlet is formed in the first cavity.
Preferably, the desorption zone inlet is communicated with the first chamber through a desorption inlet air pipe, and the desorption outlet air pipe is communicated with the desorption fan. The import of desorption fan is provided with the soft joint of import, the export of desorption fan is provided with the soft joint of export.
Preferably, the desorption zone inlet, the desorption zone outlet and the cooling zone outlet are conical; the cross sections of the desorption zone inlet, the desorption zone outlet and the cooling zone outlet are square, and the transverse sectional areas from top to bottom are gradually decreased.
The utility model provides an integration exhaust gas purification equipment, is including the preceding filter module, molecular sieve runner module and the catalytic oxidation module that connect gradually, molecular sieve runner module is foretell molecular sieve runner module who is used for exhaust gas purification equipment. One side of the molecular sieve rotating wheel opposite to the pre-filter module is provided with an adsorption inlet and a desorption zone outlet, and one side of the molecular sieve rotating wheel opposite to the heat exchange rotating wheel is provided with an adsorption outlet, a desorption zone inlet and a cooling zone outlet.
Preferably, the catalytic oxidation module has an inlet connected to a concentrated exhaust gas pipe and an outlet connected to a purified gas pipe, a catalytic bed is disposed in the catalytic oxidation module, the catalytic bed is connected to an electric/natural gas heater for heating the catalytic bed, and the catalytic bed is connected to a purified gas outlet for outputting a product of the exhaust gas after catalytic oxidation; the electric/natural gas heaters are each provided with a power/flow regulating device.
Preferably, a heat storage region is further formed on the heat exchange rotating wheel of the heat exchange rotating wheel module, and the high-temperature purified gas output by the catalytic oxidation module is communicated with the third chamber of the molecular sieve rotating wheel module and is communicated with a gas input end of the heat storage region at one end of the heat exchange rotating wheel.
Preferably, the second chamber is adjacently provided with a fourth chamber, the fourth chamber is communicated with an exhaust pipe, the exhaust pipe is communicated with a gas output end of a heat release area at the other end of the heat exchange rotating wheel, so that high-temperature purified gas output by the catalytic oxidation module is output by the exhaust pipe after being cooled by the heat storage area of the heat exchange rotating wheel.
Preferably, the high-temperature purified gas generated by the catalytic bed can exchange heat with the plate heat exchanger, and the gas after heat exchange exchanges heat with the heat exchange rotating wheel. The high-temperature purified gas can also exchange heat with the heat exchange rotating wheel firstly and then exchange heat with the plate heat exchanger. The heat exchange sequence is determined according to different working conditions. The plate heat exchanger and the heat exchange rotating wheel are respectively provided with a bypass pipeline and a valve so as to prevent the equipment from being over-temperature.
Preferably, the top of the catalytic oxidation module is also connected with an explosion venting device.
The catalyst in the catalytic bed is platinum-palladium noble metal, and the carrier of the catalyst is ceramic.
Preferably, the prefilter module is including the waste gas inlet pipeline, the surface cooler, activated carbon filter and the multi-stage filter that set gradually, the one end of waste gas inlet pipeline is provided with new trend inlet pipeline, and the other end is connected to on the surface cooler, be provided with the waste gas inlet valve on the waste gas air-supply line, the multi-stage filter has set gradually primary filter, medium efficiency filter and high efficiency filter by the direction of waste gas input to output.
Preferably, the waste gas air inlet pipeline is communicated with a fresh air pipeline, and a fresh air inlet valve is arranged on the fresh air pipeline; and a pressure difference display device is arranged among the activated carbon filter, the primary filter and the intermediate filter and among the high-efficiency filters. So as to display the pressure difference on two sides of each stage of filter material in real time.
Preferably, the front-end pretreatment and filter module, the molecular sieve runner module, the heat exchange runner module and the catalytic oxidation module are respectively provided with a first shell, a second shell, a third shell and a fourth shell, and the first shell, the second shell, the third shell and the fourth shell are sequentially connected to form an integral structure.
Preferably, the first shell, the second shell, the third shell and the fourth shell are respectively provided with an access door, a tool box and/or a ventilation opening; first casing, second casing, third casing and fourth casing can adopt the integral type structure or adopt multiunit frame concatenation to constitute, and is specific first casing adopts multiunit frame concatenation to constitute, and wherein waste gas inlet line and fresh air pipeline are located an independent frame, the surface cooler is located an independent frame, activated carbon filter is located an independent frame, primary filter is located an independent frame, secondary filter and high efficiency filter are located same frame, and the equipment of splicing in proper order of above-mentioned a plurality of frames is first casing.
Preferably, the bottom of the first shell is inclined, a draining port for draining accumulated water is arranged on the bottom of the first shell, and a ball valve for dredging or blocking the draining port is arranged at the draining port.
Preferably, the adsorption fan, the desorption fan, the adsorption rotating wheel and the heat exchange rotating wheel are respectively provided with a frequency converter to adjust and control the air quantity and the rotating speed.
Preferably, the end part of the catalytic oxidation module is fixedly connected with a control cabinet, an electric control cabinet, a PLC and a frequency converter are arranged in the control cabinet, and a touch screen and an alarm device are arranged on the outer surface of the control cabinet.
Compared with the prior art, the utility model discloses an advantage and beneficial effect lie in:
1. the utility model provides a molecular sieve runner module for integration exhaust-gas purification equipment, integrated for box form structure, and including heat transfer runner is integrated, adopt rotary-type heat accumulation formula's heat transfer runner to compare traditional fixed bed heat accumulation formula heat exchanger and only need a regenerator, do not need the diverter valve, the heat transfer in-process carries out rotatory switching through cold and hot fluid, improves heat exchange efficiency.
2. The utility model provides a molecular sieve runner module for integration exhaust gas purification equipment rationally sets up each gas circuit, when the gaseous cooling effect that heaies up to each gas circuit, can improve the feature of environmental protection of device with twice cyclic utilization of heat energy.
3. The utility model provides an integration exhaust gas purification equipment, the integration is good, scientific and reasonable with front end preliminary treatment and filter module, absorption runner module, heat transfer runner module and catalytic oxidation module effectively integrate, compact structure, safe and reliable, occupation space is littleer, convenient operation and use, and the purification efficiency of waste gas is high.
Drawings
FIG. 1 is a schematic view of a housing of an integrated exhaust gas purification apparatus according to an embodiment of the present invention;
FIG. 2 is a right side view of an embodiment of the integrated waste gas purifying apparatus of the present invention;
FIG. 3 is a schematic diagram of the integrated waste gas purifying apparatus of the present invention;
FIG. 4 is a schematic view of the molecular sieve rotor of the present invention;
FIG. 5 is a schematic view of the heat exchange runner structure of the present invention;
in the above figures: 1. a molecular sieve wheel module; 2. a molecular sieve rotating wheel; 3. an adsorption inlet; 4. an adsorption outlet; 5. a cooling zone inlet; 6. a cooling zone outlet; 7. an inlet of the desorption zone; 8. an outlet of the desorption zone; 9. a heat exchange runner module; 10. a heat exchange runner; 101. a first chamber; 102. a second chamber; 103. a third chamber; 104. a fourth chamber; 11. a heat storage region; 12. a heat release area; 13. a mandrel; 131. an outer shroud; 14. a chain drive assembly; 15. a catalytic oxidation module; 16. a concentrated exhaust pipe; 17. purifying the air pipe; 18. a catalytic bed; 19. an electric/natural gas heater; 20. a plate heat exchanger; 21. an explosion venting device; 22. A front-end pre-processing and filtering module; 23. an exhaust gas inlet pipe; 24. an exhaust gas inlet valve; 25. a fresh air inlet pipe; 251. a fresh air inlet valve; 26. surface air coolers (optional parts); 27. activated carbon filters (optional parts); 28. a multi-stage filter; 281. a primary filter; 282. a medium-efficiency filter; 283. a high efficiency filter; 29. an adsorption fan; 30. an adsorption fan inlet; 31. an outlet of the adsorption fan; 32. a desorption fan; 33. an inlet of a desorption fan; 34. an outlet of the desorption fan; 35. an access door; 36. a tool box; 37. A vent; 38. a control cabinet; 39. a first housing; 40. a second housing; 41. a third housing; 42. A fourth housing; 43. a touch screen; 44. a bypass line.
Detailed Description
The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in fig. 3-5, an embodiment of the present invention provides a molecular sieve rotary wheel module 1 for an exhaust gas purification apparatus, including a molecular sieve rotary wheel 2 and a heat exchange device arranged opposite to the molecular sieve rotary wheel 2, the molecular sieve rotary wheel 2 is provided with an adsorption region, a cooling region and a desorption region, one side of the reverse heat exchange device of the molecular sieve rotary wheel 2 is provided with a cooling region inlet 5 for conveying exhaust gas and a desorption region outlet 8 for outputting the exhaust gas desorbed by the molecular sieve rotary wheel, one side of the molecular sieve rotary wheel 2 opposite to the heat exchange device is provided with an adsorption outlet 4 for outputting the gas adsorbed by the molecular sieve rotary wheel 2, a desorption region inlet 7 for conveying high-temperature gas to the molecular sieve rotary wheel 2, and a cooling region outlet 6 for outputting the low-temperature gas passing through the molecular sieve rotary wheel 2; the cooling zone outlet 6 is communicated with one end of the heat exchange rotating wheel 10, so that the low-temperature gas output by the cooling zone outlet 6 is heated by the heat exchange device to be high-temperature gas, and then is output by the desorption zone inlet 7.
Above-mentioned well heat transfer device can be for heat transfer runner, plate heat exchanger or shell and tube heat exchanger etc. and wherein everywhere can realize the device of this device heat transfer function all is in the utility model discloses in the protection range, wherein preferred heat transfer device is heat transfer runner 10.
As shown in fig. 4, the molecular sieve wheel 2 preferably has 5/6 adsorption zones in the entire area and 1/12 desorption and cooling zones in the molecular sieve wheel 2, respectively, the ratio of each zone being adjustable according to the parameters of the exhaust gas. The molecular sieve runner 2 rotates continuously under the drive of motor, by the adsorption zone transfer to the desorption district, the desorption district adopts a small amount of high-temperature gas (the gas that comes from after the cooling is got through heat transfer runner 10 intensification), VOCs desorption volatilization that will adsorb in the pore of molecular sieve runner 2 forms little amount of wind high concentration waste gas, molecular sieve runner 2 continues to rotate, transfer to the cooling zone by the desorption district, the cooling zone adopts normal atmospheric temperature waste gas or normal atmospheric temperature clean air to cool down the high-temperature part after the desorption, resume molecular sieve runner 2's adsorption performance again.
As shown in fig. 4, the desorption zone inlet 7, the desorption zone outlet 8 and the cooling zone outlet 7 are preferably tapered; the cross sections of the desorption zone inlet 7, the desorption zone outlet 8 and the cooling zone outlet 7 are square, and the transverse sectional areas from top to bottom are gradually decreased.
The utility model discloses a 9 cooperations of heat transfer runner modules adopt rotary-type heat accumulation formula's heat transfer runner 10, compare traditional fixed bed heat accumulation formula heat exchanger and only need a regenerator, do not need the diverter valve, and the heat transfer in-process carries out rotatory switching through cold and hot fluid, improves heat exchange efficiency. And the heat exchange efficiency of the heat exchange rotating wheel can be adjusted by adjusting the rotating speed.
As shown in fig. 5, for the integrated exhaust gas purification device of the present invention, the heat exchange runner 10 forms a heat storage region 11 by the high temperature gas generated by the self-operation of the catalytic oxidation module, and forms a heat release region 12 by the low temperature gas generated by the self-operation; specifically, the high-temperature purified gas generated by the catalytic oxidation module 15 passes through the waste gas purification pipe 17 and then through the heat exchange runner air pipe to be conveyed into the third chamber 103 and conveyed from one end of the heat exchange runner 10 to the other end, so that the part of the heat exchange runner 10, into which the high-temperature gas is introduced, forms the heat storage region 11; the low-temperature gas output from the outlet 6 of the cooling region is conveyed into the second chamber 102 and is conveyed from one end of the heat exchange rotating wheel 10 to the other end, so that the part of the heat exchange rotating wheel 10, into which the low-temperature gas is introduced, forms a heat release region 12; the high-temperature gas output end of the purification waste gas pipe 17 and the low-temperature gas output end of the cooling area outlet 6 are respectively positioned on two sides of the horizontal plane where the central axis of the heat exchange runner 10 is positioned. Wherein a mandrel 13 is arranged on the central line of the heat exchange rotating wheel 10 in a penetrating manner, two ends of the mandrel 13 are fixedly connected with high-temperature bearings used for supporting the mandrel 13, an outer guard plate 131 is sleeved on the circumferential outer surface of the rotating wheel, a chain transmission assembly 14 used for driving the rotating wheel to rotate through the outer guard plate 131 is fixedly connected onto the outer guard plate 131, and a speed reducer is externally connected onto the chain transmission assembly 14 so that a transmission chain drives the rotating wheel to rotate slowly through the outer guard plate 131. The outer guard 131 is circumferentially sleeved with a heat insulating layer to reduce heat loss.
When the heat exchange rotating wheel 10 is used, the heat exchange rotating wheel 10 is driven by the chain transmission assembly 14 to slowly rotate, after the heat storage region 11 and the heat release region 12 are respectively formed, the heat storage region 11 is converted into the heat release region 12 along with the rotation of the heat exchange rotating wheel 10, so that the low-temperature gas output from the second cavity 102 at the outlet 6 of the cooling region passes through the heat release region 12 formed by the heat exchange rotating wheel 10, is heated into high-temperature gas, is output into the first cavity 101, and is input onto the molecular sieve rotating wheel 2 through the inlet 7 of the desorption region; meanwhile, the catalytic oxidation module 15 outputs high-temperature gas to the third chamber 103 through the waste gas purifying pipe 17, and forms low-temperature gas after cooling through the heat storage region 11 formed by the heat exchange runner 10, and outputs the low-temperature gas through an air pipe. The heat exchange rotating wheel 10 is a honeycomb ceramic corrugated paper heat storage rotating wheel, has the characteristics of timely heat absorption and heat release, has no local heat accumulation in the using process, and is short in preheating time.
As shown in fig. 1 and fig. 2, the embodiment further provides an integrated exhaust gas purification device, which includes a front-end pretreatment and filter module 22, a molecular sieve rotary wheel module 1, a heat exchange rotary wheel module 9, and a catalytic oxidation module 13, which are connected in sequence, where the molecular sieve rotary wheel module 1 is the above molecular sieve rotary wheel module 1 for an exhaust gas purification device. The side of the molecular sieve rotary wheel 2 opposite to the front end pretreatment and filter module 22 is provided with an adsorption inlet 3, a cooling zone inlet 5 and a desorption zone outlet 8, and the side opposite to the heat exchange rotary wheel module 9 is provided with a cooling zone outlet 6, a desorption zone inlet 7 and an adsorption outlet 4.
As further shown in fig. 3, the integrated equipment includes a concentrated waste gas pipe 16, one end of the concentrated waste gas pipe 16 is an outlet 8 of the desorption region of the molecular sieve rotary wheel module 1, a desorption fan 32 and a plate heat exchanger 20 are arranged in the concentrated waste gas pipe 16, and the other end is an inlet of the catalytic oxidation module 15. The catalytic oxidation module 15 contains a catalytic bed 18, an electric/natural gas heater 19 for heating the catalytic bed 18 is connected to the catalytic bed 18, and the catalytic bed 18 is communicated with a purified exhaust gas pipe 17 for outputting an exhaust gas product after catalytic oxidation. In order to realize the temperature reduction of the high-temperature purified gas output by the purified gas pipe 17, the outlet of the purified gas pipe 17 is connected with the heat exchange runner 10 and the plate heat exchanger 20. The high-temperature gas output by the catalytic oxidation module is discharged through the heat exchange runner 10 and the plate heat exchanger 20 and is output to an outlet 31 of the adsorption fan. Preferably, the top of the catalytic oxidation module 15 is further connected with an explosion venting device 21 so as to improve the safety of the catalytic oxidation module 15; preferably, the catalyst in the catalytic bed 18 is a platinum-palladium noble metal, and the carrier of the catalyst is ceramic. Wherein, the desorption zone outlet 8 preheats the waste gas with small air quantity and high concentration through the plate heat exchanger 20, then conveys the waste gas into the inlet of the catalytic oxidation module 15, the electric/natural gas heater 19 preheats to more than 300 ℃, and then enters the catalytic bed 18 part, VOCs and oxygen react on the surface of the catalyst, and are completely oxidized into carbon dioxide and water, thus achieving the discharge. The electric/natural gas heater is provided with a power/flow regulating device. Catalytic oxidation produces the combustion heat simultaneously, and on the one hand accessible plate heat exchanger 20 reduces the unit heat consumption of catalytic oxidation module 15, and the other hand can provide the heat for desorption district entry 7, and when exhaust gas concentration reached a definite value, the heat that catalytic oxidation produced can satisfy system self-operation. The plate heat exchanger and the heat exchange rotating wheel are respectively provided with a bypass pipeline 44, and when the concentration of waste gas is high, the combustion heat generated by catalytic oxidation is excessive, and the temperature can be reduced in an adjustable manner.
As further shown in fig. 2 and 3, the pre-filter module 22 includes an exhaust gas inlet line 23, a surface cooler 26, an activated carbon filter 27, and a multi-stage filter 28, which are sequentially disposed, wherein the other end of the exhaust gas inlet line 23 is connected to the surface cooler 26, the other end of the surface cooler 26 is connected to the activated carbon filter 27, the exhaust gas inlet line 23 is provided with an exhaust gas inlet valve 24, and preferably, the multi-stage filter 28 is sequentially provided with a primary filter 281, a middle filter 282, and a high-efficiency filter 283 in a direction from the input to the output of the exhaust gas. Preferably, the waste gas air inlet pipeline 23 is communicated with a fresh air inlet pipe 25, and the fresh air inlet pipe 25 is provided with a fresh air inlet valve 251; pressure difference display devices are arranged between the activated carbon filter 27 and the primary filter 281, between the primary filter 281 and the intermediate filter 282 and between the intermediate filter 282 and the high efficiency filter 283. So as to display the pressure difference on two sides of each stage of filter material in real time.
Because the waste gas of part industry contains solid particles such as paint mist, dust and the like, and the molecular sieve rotating wheel 2 has strict requirements on the content and the particle size of the particles in the waste gas, the multistage filter 28 is arranged before the waste gas passes through the molecular sieve rotating wheel 2, and the purification rate of the dust with the particle size of more than 0.4 mu m in the gas can be more than or equal to 99 percent after the waste gas passes through the multistage filter 28. As further shown in fig. 2, the front-end pretreatment and filter module 22, the molecular sieve wheel module 1, the heat exchange wheel module 9, and the catalytic oxidation module 15 are respectively provided with a first shell 39, a second shell 40, a third shell 41, and a fourth shell 42, and the first shell 39, the second shell, the third shell 40, the third shell 41, and the fourth shell 42 are sequentially connected to form an integral structure. Preferably, the first housing 39, the second housing 40, the third housing 41 and the fourth housing 42 are respectively provided with an access door 35, a tool box 36 and/or a ventilation opening 37; first casing 39, second casing 40, third casing 41 and fourth casing 42 can adopt the integral type structure or adopt multiunit frame concatenation to constitute, and is specific first casing 39 adopts multiunit frame concatenation to constitute, and wherein waste gas inlet pipe 23 and new trend inlet tube 25 are located an independent frame, surface cooler 26 is located an independent frame, activated carbon filter 27 is located an independent frame, primary filter 281 is located an independent frame, secondary filter 282 and high efficiency filter 283 are located same frame, and the equipment of splicing in proper order of above-mentioned a plurality of frames is first casing 39. First casing 39 bottom is the slope form, and is provided with the clean mouth of putting that is used for discharging ponding, it is provided with and is used for the mediation or blocks to put clean mouthful department put the ball valve of clean mouth, if take place special circumstances, can the inside technical problem of effectual reduction filter box. Preferably, a lifting lug is further provided on the first housing 39, and the lifting lug is used for lifting the pre-filter module 22.
In addition, in order to further improve the exhaust gas purification equipment, the end part of the catalytic oxidation module 15 is fixedly connected with a control cabinet 38, an electric control cabinet, a PLC and a frequency converter are arranged in the control cabinet 38, and a touch screen and an alarm device are arranged on the outer surface of the control cabinet 38.
The adsorption fan, the desorption fan, the adsorption rotating wheel and the heat exchange rotating wheel are respectively provided with a frequency converter to adjust the air quantity and the rotating speed.
An adopt the utility model discloses an above-mentioned integrated exhaust gas purification equipment's exhaust gas purification method, including following step:
opening a waste gas inlet valve 24 on an organic waste gas inlet pipe 23 to convey the organic waste gas into a pre-filter module 22, wherein the relative humidity of the organic waste gas is reduced to below 75% after the organic waste gas passes through a surface air cooler 26, an activated carbon filter 27 and a multi-stage filter 28 in sequence, and the organic waste gas is conveyed to a molecular sieve rotary wheel module 1 after meeting the requirement of entering a molecular sieve rotary wheel 2;
under the condition of low temperature, organic waste gas with large air volume passes through the molecular sieve rotating wheel 2, so that VOCs molecules adsorb the surface of the molecular sieve, the waste gas treated by the zeolite rotating wheel is directly discharged through the adsorption fan 29, the part of the molecular sieve rotating wheel 2 adsorbing a large amount of VOCs enters a high-temperature desorption region, namely, an outlet 8 of the desorption region conveys high-temperature gas to a part of the molecular sieve rotating wheel 2, the VOCs molecules on the molecular sieve rotating wheel 2 are desorbed by the high-temperature gas with small air volume to form high-concentration waste gas, and the high-concentration waste gas passes through an outlet 8 of the desorption region and a concentrated waste gas pipe 16; under the power action of a desorption fan 32, the concentrated waste gas enters the plate heat exchanger 20 through the concentrated waste gas pipe 16, enters the catalytic oxidation module 15 after being preheated by the plate heat exchanger 20, reaches the ignition temperature of the surface of the catalyst after being preheated by the electric/natural gas heater 19, enters the catalytic bed 18 to enable VOCs molecules to be subjected to catalytic oxidation treatment on the surface of the catalyst, and the treated gas is conveyed to the heat exchange rotating wheel through the purified waste gas outlet 17 and then conveyed to the plate heat exchanger for cooling and then discharged, or is conveyed to the plate heat exchanger firstly and then conveyed to the heat exchange rotating wheel for cooling and then discharged.
The above description is only an embodiment of the present invention, and does not limit the scope of the present invention. All utilize the utility model discloses a structural schematic diagram or on not deviating from the utility model discloses a basic process principle basis, it is right the utility model discloses the relevant improvement made all should belong to the utility model discloses an entitlement protection scope.
Claims (12)
1. A molecular sieve runner module for an exhaust gas purification apparatus, characterized in that: the device comprises a molecular sieve rotating wheel and a heat exchange device arranged opposite to the molecular sieve rotating wheel, wherein an adsorption area, a cooling area and a desorption area are arranged on the molecular sieve rotating wheel, an adsorption inlet used for conveying waste gas and a desorption area outlet used for outputting the waste gas desorbed by the molecular sieve rotating wheel are arranged on one side of the molecular sieve rotating wheel reverse heat exchange device, and an adsorption outlet used for outputting the gas adsorbed by the molecular sieve rotating wheel, a desorption area inlet used for conveying high-temperature gas to the molecular sieve rotating wheel and a cooling area outlet used for outputting the low-temperature gas passing through the molecular sieve rotating wheel are arranged on one side of the molecular sieve rotating wheel opposite to the heat exchange device; the outlet of the cooling area is communicated with one end of the heat exchange device, and the inlet of the desorption area is communicated with the other end of the heat exchange device.
2. The molecular sieve rotor module for an exhaust gas purifying apparatus according to claim 1, wherein: the heat exchange device is a heat exchange rotating wheel; the heat exchange rotating wheel is provided with a heat release area, the outlet of the cooling area is communicated with the gas input end of the heat release area positioned at one end of the heat exchange rotating wheel, and the inlet of the desorption area is communicated with the gas output end of the heat release area positioned at the other end of the heat exchange rotating wheel.
3. The molecular sieve rotor module for an exhaust gas purifying apparatus according to claim 2, wherein: the heat exchange rotating wheel is sleeved with a third shell, the heat exchange rotating wheel is placed in the middle of the front end of the third shell, a first cavity and a second cavity are adjacently arranged on two side faces opposite to the heat exchange rotating wheel respectively, two openings used for communicating one end of the heat exchange rotating wheel with the second cavity and communicating the other end of the heat exchange rotating wheel with the first cavity are arranged on the two side faces respectively, the cooling area outlet is formed in the second cavity, and the desorption area inlet is formed in the first cavity.
4. The molecular sieve rotor module for an exhaust gas purifying apparatus according to claim 1, wherein: the outlet of the desorption area is communicated to the inlet of the catalytic oxidation module through a concentrated waste gas pipe, and a desorption fan is arranged on the concentrated waste gas pipe.
5. The molecular sieve rotor module for an exhaust gas purifying apparatus according to claim 1, wherein: desorption entry, desorption export and air-cooling mouth all are the taper, and the cross section is the square and from top to bottom horizontal cross sectional area diminishes in proper order.
6. An integrated exhaust gas purification apparatus characterized in that: the device comprises a front-end pretreatment and filter module, a molecular sieve rotating wheel module, a heat exchange rotating wheel module and a catalytic oxidation module which are sequentially connected, wherein the molecular sieve rotating wheel module and the heat exchange rotating wheel module are the molecular sieve rotating wheel module and the heat exchange rotating wheel module in any one of claims 1 to 5.
7. The integrated exhaust gas purification apparatus according to claim 6, characterized in that: a plate heat exchanger is arranged in the exhaust gas communicating pipe, an outlet of the plate heat exchanger is communicated with a catalytic oxidation module, one end of the catalytic oxidation module is an exhaust gas inlet, the other end of the catalytic oxidation module is an exhaust gas outlet, the exhaust gas inlet is communicated with a catalytic bed which enables the exhaust gas to be subjected to catalytic oxidation, an electric/natural gas heater which enables the catalytic bed to heat is connected onto the catalytic bed, and the catalytic bed is communicated with a purified gas outlet which is used for outputting exhaust gas products after catalytic oxidation;
the high-temperature purified gas at the outlet of the catalytic oxidation module is cooled by the plate heat exchanger and the heat exchange rotating wheel and then is communicated with the outlet of the adsorption fan and the waste gas inlet pipe.
8. The integrated exhaust gas purification device according to claim 7, wherein the high-temperature purified gas at the purified gas outlet of the catalytic oxidation module can exchange heat with the plate heat exchanger and then exchange heat with the heat exchange runner according to the concentration condition; the heat exchange runner can exchange heat firstly and then exchange heat with the plate heat exchanger; the heat exchange rotating wheel and the plate heat exchanger are provided with a bypass pipeline and a valve so as to prevent the equipment from being over-heated.
9. The integrated exhaust gas purification apparatus according to claim 7, characterized in that: a heat storage area is formed on the heat exchange rotating wheel of the heat exchange rotating wheel module, and the purified gas outlet is communicated with the gas input end of the heat storage area positioned at one end of the heat exchange rotating wheel;
a fourth chamber is arranged adjacent to the second chamber, and is communicated with an exhaust pipe, and the exhaust pipe is communicated with a gas output end of a heat storage area positioned at the other end of the heat exchange rotating wheel, so that high-temperature gas output by the purified gas outlet is cooled to low-temperature gas through the heat storage area of the heat exchange rotating wheel and then is output by the exhaust pipe;
the heat exchange rotating wheel can adjust the heat exchange efficiency by adjusting the rotating speed.
10. The integrated exhaust gas purification apparatus according to claim 6, characterized in that: the front end preliminary treatment and filter module is including the waste gas air inlet pipeline, the surface cooler, activated carbon filter and the multi-stage filter that set gradually, the one end of waste gas air inlet pipeline is provided with the new trend entry, and the other end is connected to on the surface cooler, be provided with the waste gas inlet valve on the waste gas air inlet pipeline, the multi-stage filter has set gradually plate filter, well effect bag filter and high-efficient bag filter by the direction of waste gas input to output.
11. The integrated exhaust gas purification apparatus according to claim 6, characterized in that: front end preliminary treatment and filter module, molecular sieve runner module, heat transfer runner module and catalytic oxidation module are equallyd divide and are provided with first casing, second casing, third casing and fourth casing respectively, the second casing, the third casing of first casing, molecular sieve runner module and the fourth casing meets in proper order and is a body structure.
12. The integrated exhaust gas purification apparatus according to claim 7, wherein the adsorption fan, the desorption fan, the adsorption rotor and the heat exchange rotor are respectively provided with a frequency converter for adjusting and controlling the air volume and the rotation speed, and the electric/natural gas heater is provided with a power/flow adjusting device;
the end part of the catalytic oxidation module is fixedly connected with a control cabinet, an electric control cabinet, a PLC and a frequency converter are arranged in the control cabinet, and a touch screen or an alarm device is arranged on the outer surface of the control cabinet.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288471A (en) * | 2020-04-07 | 2020-06-16 | 青岛华世洁环保科技有限公司 | Waste gas treatment system and method for decarburization tail gas |
| CN111810973A (en) * | 2020-06-18 | 2020-10-23 | 深圳市柏志兴环保科技有限公司 | Organic waste gas catalytic combustion device |
| CN112588023A (en) * | 2020-11-20 | 2021-04-02 | 美埃(中国)环境科技股份有限公司 | VOCs treatment module all-in-one machine and working method thereof |
| CN112999827A (en) * | 2021-03-13 | 2021-06-22 | 南方环境有限公司 | A movable clarification plant that is used for boats and ships trade VOCs unorganized emission to administer |
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2019
- 2019-02-18 CN CN201920207444.0U patent/CN210125274U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288471A (en) * | 2020-04-07 | 2020-06-16 | 青岛华世洁环保科技有限公司 | Waste gas treatment system and method for decarburization tail gas |
| CN111810973A (en) * | 2020-06-18 | 2020-10-23 | 深圳市柏志兴环保科技有限公司 | Organic waste gas catalytic combustion device |
| CN112588023A (en) * | 2020-11-20 | 2021-04-02 | 美埃(中国)环境科技股份有限公司 | VOCs treatment module all-in-one machine and working method thereof |
| CN112999827A (en) * | 2021-03-13 | 2021-06-22 | 南方环境有限公司 | A movable clarification plant that is used for boats and ships trade VOCs unorganized emission to administer |
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