CN112370953B - Cooling external waste gas treatment system and method - Google Patents
Cooling external waste gas treatment system and method Download PDFInfo
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- CN112370953B CN112370953B CN202011154902.2A CN202011154902A CN112370953B CN 112370953 B CN112370953 B CN 112370953B CN 202011154902 A CN202011154902 A CN 202011154902A CN 112370953 B CN112370953 B CN 112370953B
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- 239000002912 waste gas Substances 0.000 title claims abstract description 153
- 238000001816 cooling Methods 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims description 10
- 230000017525 heat dissipation Effects 0.000 claims abstract description 145
- 230000007246 mechanism Effects 0.000 claims abstract description 96
- 239000003507 refrigerant Substances 0.000 claims abstract description 70
- 238000010521 absorption reaction Methods 0.000 claims abstract description 61
- 230000000694 effects Effects 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims description 47
- 239000007921 spray Substances 0.000 claims description 45
- 239000007789 gas Substances 0.000 claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 238000012856 packing Methods 0.000 claims description 19
- 239000002826 coolant Substances 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 10
- 230000002349 favourable effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000003292 diminished effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 2
- 230000009955 peripheral mechanism Effects 0.000 claims 1
- 238000002309 gasification Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000002378 acidificating effect Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- 239000000159 acid neutralizing agent Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000003467 diminishing effect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chimneys And Flues (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a waste gas treatment system with cooling and external discharge, which relates to the technical field of waste gas treatment and comprises the following components: the air inlet mechanism, the cooling external placing mechanism, the air guide mechanism and the heat dissipation mechanism. Refrigerant through the heat absorption chamber is to the high temperature waste gas heat absorption with heat dissipation chamber contact for refrigerant gasification expands into steam, not only promotes passive radiating head and stretches into the cold wind pipe, brings the absorbed heat of refrigerant into the cold wind pipe, realizes the cooling, and still promotes the passive impeller rotation between cooling chamber and the heat absorption chamber, realizes the exchange of the refrigerant medium in cooling chamber and the heat absorption chamber, to the refrigerant cooling in the heat absorption chamber, improves the cooling effect to heat dissipation chamber high temperature waste gas. In addition, the two sides of the air guide module extend to form a guide surface structure with the end inclined outwards from the large-diameter structure to the lower end of the air guide module, and high-temperature waste gas is guided into the side wall of the heat dissipation cavity, so that the high-temperature waste gas is fully contacted with the side wall of the heat dissipation cavity, and the cooling effect on the high-temperature waste gas is further improved.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to a waste gas treatment system with a cooling function and an external discharge function.
Background
Many production industries can produce acidic industrial waste gas in the industrial production process, in order to reach the emission standard and reduce the pollution to the environment, the acidic waste gas needs to be subjected to deacidification treatment, and the common method is to pass the acidic waste gas through a spray tower and circularly spray a neutralizing agent to a packing layer in the spray tower, so that the acidic waste gas reacts with the neutralizing agent when passing through the packing layer, and the acidity of the waste gas is reduced.
Some manufacturing enterprises can also produce the acid waste gas of high temperature, if the waste gas of high temperature directly discharges through the spray column, high temperature can make neutralization agent flash evaporation, the availability factor of neutralization agent has not only been reduced, increase manufacturing enterprise's cost, flash evaporation's neutralization agent can form the crystallization in addition, lead to the fact the jam to the packing layer, make the spray column inefficacy, the packing layer blocks up the back and possibly leads to the waste gas backward flow, serious still can damage production facility, bring huge economic loss for manufacturing enterprise. In addition, the filler (generally, plastic material) in the filler layer, which has a mass transfer function, is easy to age if it is operated in a high temperature environment for a long time, and the waste gas treatment efficiency is affected if the filler is frequently replaced.
Therefore, before passing through a packing layer of the spray tower, high-temperature waste gas needs to be subjected to heat dissipation treatment, in the prior art, a plurality of layers of radiating fins are arranged in some spray towers, so that the high-temperature waste gas is firstly subjected to heat dissipation through the radiating fins before passing through the packing layer, however, the heat dissipation capability of the radiating fins is effective, and in practical application, the heat dissipation effect is not ideal. Some then let in when high temperature waste gas lets in the spray column, let in cold wind simultaneously, utilize cold wind and high temperature waste gas mixture to reduce the temperature of waste gas, but the gas displacement of spray column has certain limit, mixes behind the cold wind, and waste gas has only accounted for the part of mist, and this has reduced the efficiency that the spray column handled waste gas undoubtedly.
Therefore, in the conventional exhaust gas treatment device (spray tower), before the exhaust gas reacts with the chemical in the spray tower, it is difficult to effectively cool the exhaust gas while ensuring the exhaust gas treatment efficiency.
Disclosure of Invention
One of the purposes of the invention is to solve the problem that the waste gas is difficult to be effectively cooled under the condition of ensuring the waste gas treatment efficiency before the waste gas reacts with the medicament in the existing spray tower.
The second purpose of the invention is to provide a waste gas treatment method for cooling and discharging.
In order to achieve one of the purposes, the invention adopts the following technical scheme: an exhaust treatment system for temperature reduction, comprising: the air inlet mechanism, the cooling external placing mechanism, the air guide mechanism and the heat dissipation mechanism.
The cooling external placement mechanism is arranged on the air inlet mechanism and is provided with: heat dissipation chamber, heat absorption chamber, cooling chamber, baffle.
The heat dissipation chamber is communicated with the air inlet mechanism, the heat absorption chamber is arranged on the outer side of the heat dissipation chamber, the cooling chamber is arranged on the outer side of the heat absorption chamber, through holes for communicating the heat absorption chamber with the cooling chamber are formed in the upper end and the lower end of the partition plate, and a driven impeller for isolating the heat absorption chamber from the cooling chamber is movably mounted in the through holes in the upper end of the partition plate.
The air guide mechanism is arranged in the cooling external placement mechanism and is provided with: air guide module, pivot, power motor. The air guide module is positioned in the heat dissipation cavity, the air guide module is in a hexagonal long shape, the extension of two sides of the air guide module is reduced from large to small, and the lower end of the air guide module is provided with a guide surface inclined outwards. The rotating shaft is connected with the air guide module, the rotating shaft is movably installed in the heat dissipation cavity, and the power motor is in power connection with the rotating shaft.
The heat dissipation mechanism is arranged on the side or the upper end of the cooling outer placement mechanism and is provided with a passive heat dissipation head and a cold air pipe. The passive heat dissipation head lower extreme is connected with the piston, passive heat dissipation head with the piston slides and sets up with in the slide of heat absorption chamber intercommunication, passive heat dissipation head with be equipped with heat dissipation channel in the piston, in the passive heat dissipation head heat dissipation channel extend along both sides, by the slide is sealed. The cold air pipe is communicated with the slideway.
In the technical scheme, when the cooling and exhausting device is used, high-temperature waste gas is introduced into the heat dissipation cavity of the cooling and exhausting mechanism through the gas guide mechanism. The high-temperature waste gas contacted with the side wall of the heat dissipation cavity absorbs heat through the refrigerant in the heat absorption cavity at the side of the heat dissipation cavity, the refrigerant is gasified into steam after being heated, the gasified refrigerant expands in the heat absorption cavity, a piston under a passive heat dissipation head in the heat dissipation mechanism is pushed to slide upwards along the sliding direction, the passive heat dissipation head stretches into the cold air pipe, the gasified refrigerant enters the cold air pipe through a heat dissipation channel of the passive heat dissipation head and the piston, and the heat absorbed by the refrigerant is brought into the cold air pipe.
The gasified refrigerant expands in the heat absorption cavity and simultaneously pushes the driven impeller on the partition plate between the cooling cavity and the heat absorption cavity to rotate, so that the driven impeller rotates to exchange the refrigerant in the cooling cavity and the heat absorption cavity and cool the refrigerant in the heat absorption cavity.
In addition, get into the high temperature waste gas in the heat dissipation chamber and can contact with the air guide module of air guide mechanism, through the leading face that the extension end that air guide module both sides were diminished by big and lean out with air guide module lower extreme, with the leading-in lateral wall to the heat dissipation chamber of high temperature waste gas, start motor power simultaneously and drive the pivot rotation, make the air guide module that links to each other with the pivot rotatory, and then carry out the vortex to high temperature waste gas, be favorable to with the pivot around the high temperature waste gas all leading-in to the lateral wall in heat dissipation chamber, make high temperature waste gas fully with the lateral wall contact in heat dissipation chamber.
Further, in the embodiment of the present invention, the air intake mechanism has an air entrainment machine and an air intake pipe, the air entrainment machine is disposed in the air intake pipe, and the air entrainment machine is configured to introduce the exhaust gas into the air intake pipe.
Further, in the embodiment of the invention, the rotating shaft is provided with a gear, and the power motor is meshed with the gear on the rotating shaft through another gear.
Further, in the embodiment of the present invention, the exhaust gas treatment system for cooling and releasing further includes a refrigerant tank, the refrigerant tank is disposed at a side end of the cooling and releasing mechanism, the refrigerant tank is communicated with the cooling cavity, a refrigerant valve is disposed at a communication position between the refrigerant tank and the cooling cavity, and a refrigerant in the refrigerant tank enters the cooling cavity of the cooling and releasing mechanism by opening the refrigerant valve.
Further, in an embodiment of the present invention, the cooling external exhaust gas treatment system further includes a spraying mechanism, the spraying mechanism is disposed at an upper end of the cooling external exhaust mechanism, and the spraying mechanism includes: waste gas case, spraying cavity, packing layer, shower head, waste gas export.
The waste gas case pass through connecting tube with the upper end intercommunication in heat dissipation chamber, spray the chamber and be located the waste gas case upper end, spray the chamber with the waste gas case intercommunication. The packing layer is arranged in the spraying cavity, and the spraying head is arranged on the packing layer. The waste gas outlet is communicated with the spraying cavity, and the waste gas outlet is positioned at the upper end of the spraying cavity.
Waste gas after the cooling passes through connecting tube and gets into in the waste gas case that sprays the mechanism from the heat dissipation chamber, later waste gas starts the shower head to spray waste gas after spraying the packing layer in the chamber, filters waste gas, and waste gas after the filtration is discharged through the waste gas export at last.
Further, in the embodiment of the invention, a defogging layer is arranged in the spray cavity and is positioned at the upper end of the spray header.
Further, in the embodiment of the present invention, the spraying mechanism further includes: circulation tank, water pump, shower.
The circulating water tank is arranged at the lower end of the waste gas tank and communicated with the waste gas tank.
The water pump is arranged at the side end of the circulating water tank, the spray pipe is connected with the water pump and the spray header, and water in the circulating water tank is extracted into the spray pipe through the water pump, so that the water in the spray pipe enters the spray header to spray waste gas.
Further, in the embodiment of the present invention, the upper end of the circulation water tank is provided with a dosing tank which is communicated with the circulation water tank.
Further, in the embodiment of the invention, rollers are rotatably connected on two sides of the air guide module, the rollers are provided with concave or convex particles, and the rollers are in contact with the side walls of the heat dissipation chamber.
The air guide module is internally provided with an air suction cavity which is communicated with the space where the roller is positioned, a filter screen is arranged in the air suction cavity, an outer discharge channel is arranged on the side of the rotating shaft, and the air suction cavity is communicated with the outer discharge channel.
Through the rotation of air guide module for it is right that the roller is hugging closely the lateral wall in heat dissipation chamber is scraped and is moved, avoids high temperature waste gas and heat dissipation chamber lateral wall contact cooling back, has impurity to bond on the lateral wall in heat dissipation chamber, increases the wall thickness in heat dissipation chamber, reduces the heat conductivity, and then reduces the cooling effect of high temperature waste gas.
The impurity that is scraped by the roller rotation absorbs through the chamber of breathing in (can promote gas to the heat dissipation chamber lateral wall when the air guide module rotates on, consequently, the pivot periphery can produce transient negative pressure, and then makes outer discharge channel and the chamber of breathing in produce suction), impurity gets into and is filtered by the filter screen in the chamber of breathing in behind the chamber of breathing in, and waste gas then gets into the outer discharge channel of pivot through the filter screen, and then by the air guide module reintroduction to the lateral wall in heat dissipation chamber, the cooling effect of reinforcing high temperature waste gas.
The invention has the beneficial effects that:
according to the invention, the refrigerant absorbs heat of high-temperature waste gas in contact with the heat dissipation cavity through the refrigerant of the heat absorption cavity, so that the refrigerant is gasified and expanded, the driven heat dissipation head is pushed to extend into the cold air pipe, heat absorbed by the refrigerant is brought into the cold air pipe, the cooling is realized, and the driven impeller between the cooling cavity and the heat absorption cavity is pushed to rotate, so that the exchange of refrigerant media in the cooling cavity and the heat absorption cavity is realized, the refrigerant in the heat absorption cavity is cooled, and the cooling effect of the high-temperature waste gas in the heat dissipation cavity is improved.
In addition, the two sides of the air guide module extend to form a guide surface structure with the end inclined outwards from the large-diameter structure to the lower end of the air guide module, and high-temperature waste gas is guided into the side wall of the heat dissipation cavity, so that the high-temperature waste gas is fully contacted with the side wall of the heat dissipation cavity, and the cooling effect on the high-temperature waste gas is further improved. The problem of waste gas in current spray column before reacting with the medicament, be difficult to under the condition of guaranteeing exhaust-gas treatment efficiency, effectively cool down waste gas is solved.
In order to achieve the second purpose, the invention adopts the following technical scheme: a waste gas treatment method for cooling and external release comprises the following steps:
introducing high-temperature waste gas into a heat dissipation cavity of the cooling outward-placing mechanism through the gas guide mechanism;
the coolant in the heat absorption cavity at the side of the heat dissipation cavity absorbs heat to the high-temperature waste gas contacted with the side wall of the heat dissipation cavity, the coolant is gasified into steam after being heated, the gasified coolant expands in the heat absorption cavity, a piston under a passive heat dissipation head in the heat dissipation mechanism is pushed to slide upwards along the sliding direction, the passive heat dissipation head extends into a cold air pipe, the gasified coolant enters the cold air pipe through a heat dissipation channel of the passive heat dissipation head and the piston, and the heat absorbed by the coolant is brought into the cold air pipe;
the gasified refrigerant expands in the heat absorption cavity and simultaneously pushes the driven impeller on the partition plate between the cooling cavity and the heat absorption cavity to rotate, so that the driven impeller rotates to exchange the refrigerant in the cooling cavity and the heat absorption cavity and cool the refrigerant in the heat absorption cavity;
in addition, get into the high temperature waste gas in the heat dissipation chamber and can contact with the air guide module of air guide mechanism, extend the terminal and the leading-in face that leans out of air guide module lower extreme through air guide module both sides by big diminishing, lead-in the lateral wall to the heat dissipation chamber with high temperature waste gas, start driving motor drives the pivot simultaneously and rotate, make the air guide module that links to each other with the pivot rotatory, and then carry out the vortex to high temperature waste gas, be favorable to with the pivot around the high temperature waste gas all leading-in to the lateral wall in heat dissipation chamber, make high temperature waste gas fully with the lateral wall contact in heat dissipation chamber, strengthen high temperature waste gas's cooling effect.
Further, in the embodiment of the invention, the cooled waste gas enters the waste gas box of the spraying mechanism from the heat dissipation cavity through the connecting pipeline, then the waste gas passes through the packing layer in the spraying cavity, the spraying head is started to spray the waste gas, the waste gas is filtered, and the filtered waste gas is finally discharged through the waste gas outlet.
Drawings
FIG. 1 is a schematic plan view of an exhaust treatment system with a temperature reduction and external placement according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an exhaust gas treatment system with a cooling function according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a cooling outward-releasing mechanism and an air intake mechanism according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a cooling exterior mechanism according to an embodiment of the present invention.
FIG. 5 is a schematic perspective view of an air guide module according to an embodiment of the present invention.
Fig. 6 is an enlarged view of a portion a of fig. 4.
Fig. 7 is a schematic diagram illustrating the movement effect of the cooling outward-releasing mechanism according to the embodiment of the present invention.
Fig. 8 is a detailed schematic diagram of a cooling exterior mechanism according to an embodiment of the present invention.
FIG. 9 is a schematic structural view of an air guide mechanism according to an embodiment of the invention.
In the attached drawings
10. Air inlet mechanism 11, air entraining machine 12 and air inlet pipe
20. A cooling external mechanism 21, a heat dissipation cavity 22 and a heat absorption cavity
23. Cooling cavity 24, partition 25, through hole
26. Passive impeller
30. Air guide mechanism 31, air guide module 32 and rotating shaft
33. Power motor
40. Heat dissipation mechanism 41, passive heat dissipation head 42 and piston
43. Heat dissipation channel 44 and cold air pipe
50. Refrigerant tank 51 and refrigerant valve
60. Connecting pipe
70. Spraying mechanism 71, waste gas box 72 and spraying cavity
73. Packing layer 74, shower head 75, exhaust outlet
76. Circulating water tank 77, dosing tank 78, water pump
79. Spray pipe
34. Roller 35, air suction cavity 36 and filter screen
38. Outer discharge channel
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of some embodiments of the invention and are not limiting of the invention, and that all other embodiments obtained by those of ordinary skill in the art without the exercise of inventive faculty are within the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
For simplicity and illustrative purposes, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. However, it is obvious. To one of ordinary skill in the art, the embodiments may be practiced without limitation to these specific details. In some instances, well-known cool down external exhaust treatment methods and structures have not been described in detail to avoid unnecessarily obscuring the embodiments. In addition, all embodiments may be used in combination with each other.
The first embodiment is as follows:
a temperature-reducing exhaust gas treatment system, as shown in fig. 1 and 2, comprising: an air inlet mechanism 10, a temperature-reducing external placing mechanism 20, an air guide mechanism 30 and a heat dissipation mechanism 40.
The air inlet mechanism 10 has an air entraining machine 11 and an air inlet pipe 12, the air entraining machine 11 is disposed in the air inlet pipe 12, and the air entraining machine 11 is used for introducing the exhaust gas to the air inlet pipe 12.
As shown in fig. 3 and 4, the cooling placement mechanism 20 is provided on the air intake mechanism 10, and the cooling placement mechanism 20 includes: heat dissipation chamber 21, heat absorption chamber 22, cooling chamber 23, baffle 24.
The heat dissipation chamber 21 communicates with the air inlet pipe 12, the heat absorption chamber 22 is arranged outside the heat dissipation chamber 21, the cooling chamber 23 is arranged outside the heat absorption chamber 22, the upper end and the lower end of the partition plate 24 are provided with through holes 25 for communicating the heat absorption chamber 22 with the cooling chamber 23, and a driven impeller 26 for isolating the heat absorption chamber 22 from the cooling chamber 23 is movably arranged in the through holes 25 at the upper end of the partition plate 24.
As shown in fig. 3, 4 and 5, the air guide mechanism 30 is provided in the cooling and placing mechanism 20, and the air guide mechanism 30 includes: air guide module 31, pivot 32, power motor 33. The air guide module 31 is positioned in the heat dissipation cavity 21, the air guide module 31 is hexagonal and long, the extension of the two sides of the air guide module 31 is reduced from large to small, and the lower end of the air guide module 31 is provided with an outward inclined guide surface. The rotating shaft 32 is connected with the air guide module 31, and the rotating shaft 32 is movably installed in the heat dissipation cavity 21. The rotating shaft 32 is provided with a gear, and the power motor 33 is meshed with the gear on the rotating shaft 32 through another gear.
As shown in fig. 4 and 6, the heat dissipation mechanism 40 is disposed on the side or upper end of the cooling exterior mechanism 20, and the heat dissipation mechanism 40 has a passive heat dissipation head 41 and a cold air pipe 44. The lower end of the passive heat dissipation head 41 is connected with a piston 42, the passive heat dissipation head 41 and the piston 42 are arranged in a slide way communicated with the heat absorption cavity 22 in a sliding mode, heat dissipation channels 43 are arranged in the passive heat dissipation head 41 and the piston 42, and the heat dissipation channels 43 in the passive heat dissipation head 41 extend along two sides and are sealed by the slide way. The cold air pipe 44 communicates with the chute.
As shown in fig. 4, the exhaust gas treatment system for cooling and releasing further includes a refrigerant box 50, the refrigerant box 50 is disposed at a side end of the cooling and releasing mechanism 20, the refrigerant box 50 is communicated with the cooling cavity 23, a refrigerant valve 51 is disposed at a communication position between the refrigerant box 50 and the cooling cavity 23, and a refrigerant medium in the refrigerant box 50 enters the cooling cavity 23 of the cooling and releasing mechanism 20 by opening the refrigerant valve 51.
The implementation steps are as follows: as shown in fig. 7, the high-temperature exhaust gas is introduced into the heat dissipation chamber 21 of the temperature-reducing discharge mechanism 20 through the gas guide mechanism 30. Then, the refrigerant in the heat absorption cavity 22 at the side of the heat dissipation cavity 21 absorbs heat to the high-temperature waste gas contacting with the side wall of the heat dissipation cavity 21, the refrigerant is gasified into steam after being heated, the gasified refrigerant expands in the heat absorption cavity 22, the piston 42 below the passive heat dissipation head 41 in the heat dissipation mechanism 40 is pushed to slide upwards along the sliding direction, so that the passive heat dissipation head 41 extends into the cold air pipe 44, the gasified refrigerant enters the cold air pipe 44 through the heat dissipation channel 43 of the passive heat dissipation head 41 and the piston 42, and the heat absorbed by the refrigerant is brought into the cold air pipe 44.
While the gasified refrigerant expands in the heat absorption cavity 22, the driven impeller 26 on the partition plate 24 between the cooling cavity 23 and the heat absorption cavity 22 is pushed to rotate, so that the driven impeller 26 rotates to exchange the refrigerant in the cooling cavity 23 and the heat absorption cavity 22, and cool the refrigerant in the heat absorption cavity 22.
In addition, the high-temperature waste gas entering the heat dissipation cavity 21 can contact with the air guide module 31 of the air guide mechanism 30, the high-temperature waste gas is guided into the side wall of the heat dissipation cavity 21 through the guide surfaces inclined outwards from the large and small extending ends on the two sides of the air guide module 31 and the lower end of the air guide module 31, and meanwhile, the power motor 33 is started to drive the rotating shaft 32 to rotate, so that the air guide module 31 connected with the rotating shaft 32 rotates, the high-temperature waste gas is disturbed, the high-temperature waste gas around the rotating shaft 32 is favorably guided into the side wall of the heat dissipation cavity 21, and the high-temperature waste gas is fully contacted with the side wall of the heat dissipation cavity 21.
According to the invention, the refrigerant absorbs heat to the high-temperature waste gas contacting with the heat dissipation cavity 21 through the refrigerant of the heat absorption cavity 22, so that the refrigerant is gasified and expanded, the driven heat dissipation head 41 is pushed to extend into the cold air pipe 44, the heat absorbed by the refrigerant is brought into the cold air pipe 44 to realize cooling, and the driven impeller 26 between the cooling cavity 23 and the heat absorption cavity 22 is pushed to rotate, so that the exchange of the refrigerant medium in the cooling cavity 23 and the heat absorption cavity 22 is realized, the refrigerant in the heat absorption cavity 22 is cooled, and the cooling effect to the high-temperature waste gas of the heat dissipation cavity 21 is improved. In addition, the extending ends on the two sides of the gas guide module 31 extend out of the small structure and the lower end of the gas guide module, so that high-temperature waste gas is guided into the side wall of the heat dissipation cavity 21, the high-temperature waste gas is fully contacted with the side wall of the heat dissipation cavity 21, and the cooling effect on the high-temperature waste gas is further improved. The problem of waste gas in current spray column before reacting with the medicament, be difficult to under the condition of guaranteeing exhaust-gas treatment efficiency, effectively cool down waste gas is solved.
Preferably, as shown in fig. 2, the exhaust gas treatment system for cooling external placement further includes a spraying mechanism 70, the spraying mechanism 70 is disposed at the upper end of the cooling external placement mechanism 20, and the spraying mechanism 70 has: waste gas tank 71, spraying cavity 72, packing layer 73, spraying head 74 and waste gas outlet 75.
The waste gas tank 71 is communicated with the upper end of the heat dissipation cavity 21 through the connecting pipeline 60, the spraying cavity 72 is positioned at the upper end of the waste gas tank 71, and the spraying cavity 72 is communicated with the waste gas tank 71. A packing layer 73 is disposed in the spray chamber 72, and a spray header 74 is disposed on the packing layer 73. The waste gas outlet 75 is communicated with the spraying cavity 72, and the waste gas outlet 75 is positioned at the upper end of the spraying cavity 72.
The cooled waste gas enters the waste gas tank 71 of the spraying mechanism 70 from the heat dissipation cavity 21 through the connecting pipeline 60, then the waste gas passes through the packing layer 73 in the spraying cavity 72, the spraying head 74 is started to spray the waste gas, the waste gas is filtered, and the filtered waste gas is finally discharged through the waste gas outlet 75.
Preferably, a defogging layer is disposed in the spray chamber 72 and is disposed at the upper end of the spray header 74.
Preferably, the shower mechanism 70 further has: a circulating water tank 76, a water pump 78 and a spraying pipe 79.
The circulation water tank 76 is provided at the lower end of the offgas tank 71, and the circulation water tank 76 communicates with the offgas tank 71. The circulation water tank 76 has a dosing tank 77 at its upper end, and the dosing tank 77 communicates with the circulation water tank 76.
The water pump 78 is arranged at the side end of the circulating water tank 76, the spraying pipe 79 is connected with the water pump 78 and the spraying head 74, water in the circulating water tank 76 is pumped into the spraying pipe 79 through the water pump 78, and then the water in the spraying pipe 79 enters the spraying head 74 to spray the waste gas.
Example two:
an exhaust gas treatment system with a cooling external discharge function has the same characteristic structure as that of the first embodiment, wherein, as shown in fig. 8 and 9, rollers 34 are rotatably connected to both sides of an air guide module 31, the rollers 34 have concave or convex particles thereon, and the rollers 34 are in contact with the side walls of a heat dissipation chamber 21.
The air guide module 31 is provided with an air suction cavity 35, the air suction cavity 35 is communicated with the space where the roller 34 is located, a filter screen 36 is arranged in the air suction cavity 35, an outer discharge channel 38 is arranged on the side of the rotating shaft 32, and the air suction cavity 35 is communicated with the outer discharge channel 38.
Through the rotation of the air guide module 31, the roller 34 is tightly attached to and scrapes the side wall of the heat dissipation cavity 21, so that after the high-temperature waste gas is cooled by contacting with the side wall of the heat dissipation cavity 21, impurities are bonded on the side wall of the heat dissipation cavity 21, the wall thickness of the heat dissipation cavity 21 is increased, the heat conductivity is reduced, and the cooling effect of the high-temperature waste gas is further reduced.
The impurity that is scraped off is rotated by roller 34 absorbs through inhaling the chamber 35 (can promote gas to the lateral wall of heat dissipation chamber 21 when air guide module 31 rotates, therefore, pivot 32 periphery can produce transient negative pressure, and then make outer discharge channel 38 and inhale the chamber 35 and produce suction), impurity gets into and is inhaled the filter screen 36 of chamber 35 after the chamber 35 and filters, and waste gas then passes through filter screen 36 and gets into outer discharge channel 38 of pivot 32, and then by air guide module 31 reintroduction to the lateral wall of heat dissipation chamber 21, strengthen high temperature waste gas's cooling effect.
Example three:
a waste gas treatment method for cooling and releasing comprises the following steps:
introducing the high-temperature waste gas into the heat dissipation cavity 21 of the cooling external placement mechanism 20 through the gas guide mechanism 30;
the refrigerant in the heat absorption cavity 22 at the side of the heat dissipation cavity 21 absorbs heat to the high-temperature waste gas contacting with the side wall of the heat dissipation cavity 21, the refrigerant is gasified into steam after being heated, the gasified refrigerant expands in the heat absorption cavity 22, the piston 42 below the passive heat dissipation head 41 in the heat dissipation mechanism 40 is pushed to slide upwards along the sliding direction, so that the passive heat dissipation head 41 extends into the cold air pipe 44, the gasified refrigerant enters the cold air pipe 44 through the heat dissipation channel 43 of the passive heat dissipation head 41 and the piston 42, and the heat absorbed by the refrigerant is carried into the cold air pipe 44;
the gasified refrigerant expands in the heat absorption cavity 22 and simultaneously pushes the driven impeller 26 on the partition plate 24 between the cooling cavity 23 and the heat absorption cavity 22 to rotate, so that the driven impeller 26 rotates to exchange the refrigerant in the cooling cavity 23 and the heat absorption cavity 22 and cool the refrigerant in the heat absorption cavity 22;
in addition, the high temperature waste gas that gets into in the heat dissipation chamber 21 can contact with the air guide module 31 of air guide mechanism 30, extend the terminal and the leading-in face that leans out of air guide module 31 lower extreme by big diminishing through air guide module 31 both sides, with high temperature waste gas leading-in to the lateral wall in heat dissipation chamber 21, start motor power 33 simultaneously and drive pivot 32 and rotate, make the air guide module 31 that links to each other with pivot 32 rotatory, and then carry out the vortex to high temperature waste gas, be favorable to all leading-in to the lateral wall in heat dissipation chamber 21 with the high temperature waste gas around the pivot 32, make high temperature waste gas fully contact with the lateral wall in heat dissipation chamber 21, strengthen the cooling effect of high temperature waste gas.
Preferably, the cooled exhaust gas enters the exhaust gas tank 71 of the spraying mechanism 70 from the heat dissipation chamber 21 through the connecting pipe 60, and then the exhaust gas passes through the filler layer 73 in the spraying chamber 72 and then the spraying head 74 is started to spray the exhaust gas, so as to filter the exhaust gas, and finally the filtered exhaust gas is discharged through the exhaust gas outlet 75.
Although the illustrative embodiments of the present invention have been described in order to enable those skilled in the art to understand the present invention, the present invention is not limited to the scope of the embodiments, and it is to be understood that all changes that can be made by one skilled in the art to the inventive concept can be made without departing from the spirit and scope of the invention as defined and defined by the appended claims.
Claims (9)
1. An exhaust treatment system for temperature reduction, comprising:
an air intake mechanism;
the cooling puts the mechanism outward, the cooling puts the mechanism setting outward and is in on the air inlet mechanism, the cooling puts the mechanism outward and has:
the heat dissipation cavity is communicated with the air inlet mechanism;
the heat absorption cavity is arranged on the outer side of the heat dissipation cavity;
the cooling cavity is arranged on the outer side of the heat absorption cavity;
the upper end and the lower end of the clapboard are provided with through holes for communicating the heat absorption cavity with the cooling cavity, and a driven impeller for isolating the communication between the heat absorption cavity and the cooling cavity is movably arranged in the through hole at the upper end of the clapboard;
the air guide mechanism is arranged in the cooling external placement mechanism and is provided with:
the air guide module is positioned in the heat dissipation cavity, the air guide module is in a hexagonal long shape, the extension of two sides of the air guide module is reduced from large to small, and the lower end of the air guide module is provided with an outward inclined guide surface;
the rotating shaft is connected with the air guide module and is movably arranged in the heat dissipation cavity;
the power motor is in power connection with the rotating shaft;
the heat dissipation mechanism is arranged at the upper end of the cooling outward-placing mechanism and is provided with:
the lower end of the passive heat dissipation head is connected with a piston, the passive heat dissipation head and the piston are arranged in a slide way communicated with the heat absorption cavity in a sliding mode, heat dissipation channels are arranged in the passive heat dissipation head and the piston, and the heat dissipation channels in the passive heat dissipation head extend along two sides and are sealed by the slide way;
the cold air pipe is communicated with the slide way;
the waste gas treatment system for cooling and releasing comprises a cooling medium box, wherein the cooling medium box is arranged at the side end of the cooling and releasing mechanism and communicated with the cooling cavity, a cooling medium valve is arranged at the communicated part of the cooling medium box and the cooling cavity, and a cooling medium in the cooling medium box enters the cooling cavity of the cooling and releasing mechanism by opening the cooling medium valve.
2. The reduced temperature, vented exhaust treatment system of claim 1, wherein the air intake mechanism has:
guiding the gas machine;
the air-entraining machine is arranged in the air inlet pipe and used for introducing waste gas to the air inlet pipe.
3. The cooling external waste gas treatment system according to claim 1, wherein the rotating shaft is provided with a gear, and the power motor is meshed with the gear on the rotating shaft through another gear.
4. The cooling peripheral exhaust gas treatment system according to claim 1, wherein the cooling peripheral exhaust gas treatment system further comprises a spraying mechanism provided at an upper end of the cooling peripheral mechanism, the spraying mechanism having:
the waste gas box is communicated with the upper end of the heat dissipation cavity through a connecting pipeline;
the spraying cavity is positioned at the upper end of the waste gas box and is communicated with the waste gas box;
the packing layer is arranged in the spraying cavity;
the spray header is arranged on the packing layer;
and the waste gas outlet is communicated with the spraying cavity, and the waste gas outlet is positioned at the upper end of the spraying cavity.
5. The cooling-releasing exhaust gas treatment system according to claim 4, wherein a demisting layer is arranged in the spraying cavity and is positioned at the upper end of the spraying head.
6. The reduced temperature waste gas treatment system of claim 4, wherein the spray mechanism further comprises:
the circulating water tank is arranged at the lower end of the waste gas tank and is communicated with the waste gas tank;
the water pump is arranged at the side end of the circulating water tank;
the spray pipe is connected with the water pump and the spray header, water in the circulating water tank is extracted into the spray pipe through the water pump, and then the water in the spray pipe enters the spray header to spray waste gas.
7. The waste gas treatment system with reduced temperature and emission according to claim 6, wherein the circulation water tank has a dosing tank at an upper end thereof, and the dosing tank is communicated with the circulation water tank.
8. A cooling outdoor exhaust gas treatment method applied to the cooling outdoor exhaust gas treatment system according to any one of claims 1 to 7, comprising the steps of:
introducing high-temperature waste gas into a heat dissipation cavity of the cooling outward-placing mechanism through the gas guide mechanism;
the high-temperature waste gas contacted with the side wall of the heat dissipation cavity absorbs heat through the refrigerant in the heat absorption cavity at the side of the heat dissipation cavity, the refrigerant is gasified into steam after being heated, the gasified refrigerant expands in the heat absorption cavity, a piston below a passive heat dissipation head in the heat dissipation mechanism is pushed to slide upwards, the passive heat dissipation head extends into a cold air pipe, the gasified refrigerant enters the cold air pipe through a heat dissipation channel of the passive heat dissipation head and the piston, and the heat absorbed by the refrigerant is brought into the cold air pipe;
the gasified refrigerant expands in the heat absorption cavity and pushes the driven impeller on the partition plate between the cooling cavity and the heat absorption cavity to rotate at the same time, so that the driven impeller rotates to exchange the refrigerant in the cooling cavity and the heat absorption cavity and cool the refrigerant in the heat absorption cavity;
in addition, get into the high temperature waste gas in the heat dissipation chamber and can contact with the air guide module of air guide mechanism, through the leading surface that the extension end that air guide module both sides were diminished by big leans out with air guide module lower extreme, with the leading-in lateral wall to the heat dissipation chamber of high temperature waste gas, start motor power drive pivot rotation simultaneously, make the air guide module that links to each other with the pivot rotatory, and then carry out the vortex to high temperature waste gas, be favorable to with the pivot around the high temperature waste gas all leading-in to the lateral wall in heat dissipation chamber, make high temperature waste gas fully with the lateral wall contact in heat dissipation chamber, strengthen high temperature waste gas's cooling effect.
9. The method for treating waste gas discharged from the cooling system according to claim 8, wherein the method is applied to the system for treating waste gas discharged from the cooling system according to claim 4, the cooled waste gas enters the waste gas tank of the spraying mechanism from the heat dissipation chamber through the connecting pipeline, the waste gas passes through the packing layer in the spraying chamber, then the spraying head is started to spray the waste gas, the waste gas is filtered, and the filtered waste gas is finally discharged through the waste gas outlet.
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| CN210905619U (en) * | 2019-08-09 | 2020-07-03 | 台州森林造纸有限公司 | Multistage fountain deodorization system |
| CN211328206U (en) * | 2019-08-14 | 2020-08-25 | 镇江新纳环保材料有限公司 | NMP waste gas recovery system |
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Effective date of registration: 20240304 Address after: 635000 group 5, Sanxing village, Wanjia Town, Dachuan District, Dazhou City, Sichuan Province Patentee after: Wang Qin Country or region after: China Address before: Room 10, 650 Jingang Avenue, yangshe Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee before: ZHANGJIAGANG JINQIU ENVIRONMENTAL TECHNOLOGY CO.,LTD. Country or region before: China |