CN109925841A - A kind of energy-efficient organic exhaust gas purifying system - Google Patents
A kind of energy-efficient organic exhaust gas purifying system Download PDFInfo
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Abstract
The present invention relates to a kind of energy-efficient organic exhaust gas purifying systems, including exhaust gas collecting pipe, discharge smokestack and the high temperature gas-gas heat exchanger being arranged between exhaust gas collecting pipe and discharge smokestack, high temperature furnace, level-one aqueous vapor heat exchanger and exhaust blower, high temperature gas-gas heat exchanger includes cryogenic gas channel and high temperature gas passage, organic exhaust gas in exhaust gas collecting pipe enters cryogenic gas channel, heat exchange heating is carried out with high-temperature gas in high temperature gas passage, and after preliminary exposition, enter high temperature furnace by high-temperature pipe, continuing second decomposition in high temperature furnace is carbon dioxide and water, the high temperature purification gas generated in high temperature furnace through organic exhaust gas decomposition caused heat release enters in high temperature gas passage, after purification gas after high temperature gas-gas heat exchanger sequentially enters level-one aqueous vapor heat exchanger and exhaust blower, finally enter discharge smokestack discharge.The present invention has many advantages, such as that heat exchange efficiency is high, high-temperature resistant result is good, exhaust gas decomposing, purifying is good, exhaust gas decomposes heat utilization rate height and long service life.
Description
Technical field
The present invention relates to print field workshop VOCs treatment technical field, specially a kind of energy-efficient organic exhaust gas
Purification system.
Background technique
In printing industry, due to being printed using the materials such as organic solvent, film, paper, ink, in process
In, especially drying course can generate a large amount of organic exhaust gas.To prevent these organic exhaust gas from polluting the environment, it is clear that
It needs
It just can be carried out discharge by exhaust-gas treatment.With the pay attention to day by day that Environmental is protected, VOCs treatment is wanted
It asks more
Come higher.Existing by plasma, active carbon adsorption, RPO ceramics inhale the modes such as heat release processing, there is treatment effeciency
The problems such as not high enough, degree of purification is not good enough, processing cost is relatively high.
Summary of the invention
In order to solve the above technical problems, the present invention provides, a kind of heat exchange efficiency is high, high-temperature resistant result is good, exhaust gas decomposing, purifying
Good, exhaust gas decomposes heat utilization rate height and energy-efficient organic exhaust gas purifying system with long service life.
To achieve the goals above, it is achieved through the following technical solutions.
A kind of energy-efficient organic exhaust gas purifying system, including for collecting workshop organic exhaust gas exhaust gas collecting pipe and
It further include that high temperature gas-gas heat exchanger, high temperature furnace, level-one aqueous vapor are changed for the discharge smokestack of the purified purification gas of exhaust system
Hot device and exhaust blower.The high temperature gas-gas heat exchanger, high temperature furnace, level-one aqueous vapor heat exchanger and exhaust blower are arranged in exhaust gas gas collecting tube
Between road and discharge smokestack.The high temperature gas-gas heat exchanger includes cryogenic gas channel and high temperature gas passage, the exhaust gas centralized
Low temperature organic exhaust gas in feed channel enters in the cryogenic gas channel of high temperature gas-gas heat exchanger, in high temperature gas-gas heat exchanger
High-temperature gas in high temperature gas passage carries out heat exchange heating, and preliminary exposition is carried out in high temperature gas-gas heat exchanger, through high temperature
Primary decomposition organic exhaust gas after gas-gas heat exchanger heat exchange heating and preliminary exposition enters high temperature furnace by high-temperature pipe, in high temperature
Continue second decomposition in furnace, organic exhaust gas is thoroughly decomposed into carbon dioxide and water, the high temperature furnace is equipped with High Temperature Gas gas and changes
The communication port of the high temperature gas passage connection of hot device, the interior high temperature purification gas generated through organic exhaust gas decomposition caused heat release of the high temperature furnace
Body enters in the high temperature gas passage in high temperature gas-gas heat exchanger through communication port, the purification gas after high temperature gas-gas heat exchanger according to
After secondary entrance level-one aqueous vapor heat exchanger and exhaust blower, discharge smokestack discharge is finally entered.The energy-efficient organic exhaust gas of the present invention is net
Change system is by high temperature gas-gas heat exchanger, high temperature furnace, level-one aqueous vapor heat exchanger, exhaust blower and the setting for discharging smokestack, by exhaust gas
The organic exhaust gas that the workshop collected in collecting pipe generates first carries out heat exchange heating in high temperature gas-gas heat exchanger, and realizes preliminary
It decomposes, i.e., the described organic exhaust gas realizes an incomplete decomposing in high temperature gas-gas heat exchanger；Organic waste after once decomposing
Gas is delivered in high temperature furnace by high-temperature pipe, the last decomposition in high temperature furnace, secondary complete decomposition is realized, two in high temperature furnace
Organic exhaust gas after secondary complete decomposition is thoroughly converted into water and carbon dioxide, and releases a large amount of heat, makes to be formed in high temperature furnace high
Warm purification gas, the high temperature purification gas in the high temperature furnace pass through the communication port led to high temperature gas-gas heat exchanger and enter High Temperature Gas
In gas heat exchanger, for carrying out circulating-heating heating to the organic exhaust gas entered in high temperature gas-gas heat exchanger, high temperature is effectively promoted
The heat transfer effect of heat utilization ratio and high temperature gas-gas heat exchanger in furnace.The high temperature purification gas is changed through high temperature gas-gas heat exchanger
Enter level-one aqueous vapor heat exchanger after heat drop temperature, aqueous vapor heat exchange is carried out with level-one aqueous vapor heat exchanger, through arranging after lasting heat exchange cooling
Blower is discharged after being drawn to discharge smokestack.
Further, the organic exhaust gas is input in high temperature gas-gas heat exchanger by air-introduced machine, the air-introduced machine setting
Workshop organic exhaust gas is collected to exhaust gas collecting pipe by air-introduced machine in exhaust gas collecting pipe front end, and is input to high temperature
In gas-gas heat exchanger, convenient for the collection of organic exhaust gas.
Further, the heat exchanger tube of the high temperature gas-gas heat exchanger is Multihead screw heat exchange pipe, the multi-head spiral heat exchange
Pipe is made of high temperature resistant stainless steel material.The setting of Multihead screw heat exchange pipe intersects at for the material of equal quality
Common heat exchanger tube, the heat exchange area effectively increased, specifically, the heat exchange area of spiral heat exchange tube increase to original 1.3 times, into
And effective improving heat exchanging efficiency.Multihead screw heat exchange pipe is made of high temperature resistant stainless steel material, and high temperature resistant stainless steel can be
It is worked normally at 1000 DEG C, long service life, and then promotes the service life of entire high temperature gas-gas heat exchanger.
Further, the high temperature gas-gas heat exchanger is from low temperature by the organic exhaust gas of 50 DEG C ± 10 DEG C of inlet through high temperature
700 DEG C ± 50 DEG C of gas-gas heat exchanger is warming up to after gas-gas heat exchanger, organic exhaust gas carries out tentatively in high temperature gas-gas heat exchanger
Primary to decompose, the organic exhaust gas after once decomposing enters in high temperature furnace through high-temperature pipe.Organic exhaust gas is through high temperature gas-gas heat exchange
By exchanging heat, the temperature of organic exhaust gas is directly increased to 700 DEG C or so, has greatly approached high-temperature gas in device and high temperature furnace
Machine exhaust gas decomposes the temperature of 800 DEG C of needs completely, obtains preliminary exposition in high temperature gas-gas heat exchanger, effectively increases heat exchange effect
Rate is advantageously implemented energy-saving and emission-reduction, reduces operation cost of enterprises.
Further, the energy-efficient organic exhaust gas purifying system of the present invention further includes temperature control system, the temperature control system with
High temperature furnace connection, the high temperature furnace is interior to be equipped with the ceramic honey comb with accumulation of heat effect.The setting of ceramic honey comb, has effectively extended
The time that machine exhaust gas passes through, organic exhaust gas is enable sufficiently to decompose.
Further, the high temperature in-furnace temperature is controlled by temperature control system at 800 DEG C ± 50 DEG C, and organic exhaust gas enters high temperature
Second decomposition is carried out after in furnace, organic exhaust gas is thoroughly decomposed into carbon dioxide and water in high temperature furnace, and releases a large amount of heat
Amount.High temperature purification gas in the high temperature furnace carries out being cooled to 200 DEG C ± 10 DEG C after exchanging heat by high temperature gas-gas heat exchanger, tool
Body, the high temperature purification gas in high temperature furnace enters high temperature gas-gas heat exchange by the high-temperature gas input terminal of high temperature gas-gas heat exchanger
Device preheats the organic exhaust gas in high temperature gas-gas heat exchanger, after exchanging heat, exports the purification gas of high temperature gas-gas heat exchanger
Temperature is at 200 DEG C or so.
Further, the energy-efficient organic exhaust gas purifying system of the present invention further includes high-temperature-hot-water equipment, the high warm
Wetting system includes level-one water inlet and primary effluent mouth, and the level-one aqueous vapor heat exchanger includes first class purification gas passage and level-one
200 DEG C or so of the purification gas of hot water channel, the high temperature gas-gas heat exchanger output enter the level-one of level-one aqueous vapor heat exchanger
In purification gas channel, the water in the high-temperature-hot-water equipment enters level-one hot water channel by the outflow of primary effluent mouth, through exchanging heat
It is returned in high-temperature-hot-water equipment by level-one water inlet afterwards, the coolant-temperature gage after heating in the high-temperature-hot-water equipment is 90 DEG C or more.
Obtained 90 DEG C or more of hot water can be used to workshop printing, compounding machine heat supply after the exchange of level-one aqueous vapor exchanger heat,
Northern cold snap, it can also be used to central heating.The setting of the high-temperature-hot-water equipment, is conducive to the heat of level-one aqueous vapor heat exchanger
It recycles, improves recuperation of heat utilization rate.
Further, the energy-efficient organic exhaust gas purifying system of the present invention, further includes second level aqueous vapor heat exchanger, the second level
For the setting of aqueous vapor heat exchanger on discharge smokestack, the second level aqueous vapor heat exchanger includes that secondary purification gas passage and second level hot water are logical
Road, what the second level water inlet of the second level aqueous vapor heat exchanger entered is tap water at normal temperature, the second level of the second level aqueous vapor heat exchanger
Exit water temperature is 50 DEG C -80 DEG C, and entrance and the level-one aqueous vapor of the secondary purification gas passage of the second level aqueous vapor heat exchanger are changed
The outlet of the first class purification gas passage of hot device, the purification gas after the heat exchange cooling of level-one aqueous vapor heat exchanger is through exhaust blower
Enter after the water in secondary purification gas passage, with second level hot water channel carries out heat exchange afterwards and is discharged through discharge smokestack.Through second level
The hot water temperature prepared after aqueous vapor heat exchanger is 50 DEG C -80 DEG C, which can be used to dormitory, kitchen supplying hot water, in northern cold
Cold day gas, it can also be used to central heating.
The energy-efficient organic exhaust gas purifying system of the present invention compared with prior art, has the following beneficial effects:
The first, exhaust gas decomposing, purifying effect is good, and the energy-efficient organic exhaust gas purifying system of the present invention is by organic exhaust gas first in high temperature
Preheating makes its preliminary exposition in gas-gas heat exchanger, is then delivered in high temperature furnace by high-temperature pipe, is persistently divided in high temperature furnace
Solution realizes secondary complete decomposition, and the organic exhaust gas in high temperature furnace after secondary complete decomposition is thoroughly converted into water and carbon dioxide,
The VOCs treatment efficiency of the energy-efficient organic exhaust gas purifying system of the present invention is 99.5% or more.
The second, heat exchange efficiency is high, on the one hand, and organic exhaust gas last decomposition in high temperature furnace realizes secondary complete decomposition,
While organic exhaust gas in high temperature furnace after secondary complete decomposition is thoroughly converted into water and carbon dioxide, a large amount of heat is released,
The high-temperature gas of generation enters the organic exhaust gas in high temperature gas-gas heat exchanger and carries out circulating-heating heating, is effectively promoted in high temperature furnace
Heat utilization ratio and high temperature gas-gas heat exchanger heat transfer effect；On the other hand, multi-head spiral exchanges heat in high temperature gas-gas heat exchanger
The setting of pipe intersects at common heat exchanger tube for the material of equal quality, the heat exchange area effectively increased, specifically, spiral shell
The heat exchange area of rotation heat exchanger tube increases to original 1.3 times, and then effective improving heat exchanging efficiency.
Third, high-temperature resistant result be good, long service life, and Multihead screw heat exchange pipe uses high temperature resistant in high temperature gas-gas heat exchanger
Stainless steel material is made, and high temperature resistant stainless steel can work normally at 1000 DEG C, long service life, and then promotes entire High Temperature Gas
The service life of gas heat exchanger.
4th, heat utilization rate is high, in high temperature furnace high-temperature gas enter in high temperature gas-gas heat exchanger to organic exhaust gas into
Row circulating-heating heat exchange is effectively utilized the heat that organic exhaust gas discharges in high temperature furnace；High-temperature-hot-water equipment and second level water
The setting of gas heat exchanger is respectively used to the thermal energy recycling of level-one aqueous vapor heat exchanger and utilizes, effective lifting system thermal energy recycling benefit
With rate.
Detailed description of the invention
Attached drawing 1 is the block diagram of the energy-efficient organic exhaust gas purifying system of the present invention.
Specific embodiment
The energy-efficient organic exhaust gas purifying system of the present invention and massage are controlled below in conjunction with specific embodiments and drawings
Method is described in further detail.
Embodiment 1
In the area of no natural gas, selection methanol is machine room's fuel, and the present invention provides a kind of energy-efficient organic exhaust gas
Purification system, after being purified including the exhaust gas collecting pipe for collecting the organic exhaust gas that workshop burning generates and for exhaust system
Purification gas discharge smokestack, further include high temperature gas-gas heat exchanger, high temperature furnace, level-one aqueous vapor heat exchanger and exhaust blower.It is described
High temperature gas-gas heat exchanger, high temperature furnace, level-one aqueous vapor heat exchanger and exhaust blower setting are between exhaust gas collecting pipe and discharge smokestack.
The high temperature gas-gas heat exchanger includes cryogenic gas channel and high temperature gas passage, and the low temperature in the exhaust gas collecting pipe is organic
Exhaust gas enters in the cryogenic gas channel of high temperature gas-gas heat exchanger, with the height in the high temperature gas passage in high temperature gas-gas heat exchanger
Wet body carries out heat exchange heating, and preliminary exposition is carried out in high temperature gas-gas heat exchanger, exchanges heat and heats up through high temperature gas-gas heat exchanger
High temperature furnace is entered by high-temperature pipe with the primary decomposition organic exhaust gas after preliminary exposition, continues second decomposition in high temperature furnace,
Organic exhaust gas is thoroughly decomposed into carbon dioxide and water, the high temperature furnace is equipped with the high temperature gas passage of high temperature gas-gas heat exchanger
The communication port of connection, the interior high temperature purification gas generated through organic exhaust gas decomposition caused heat release of the high temperature furnace enter high temperature through communication port
In high temperature gas passage in gas-gas heat exchanger, the purification gas after high temperature gas-gas heat exchanger sequentially enters the heat exchange of level-one aqueous vapor
After device and exhaust blower, discharge smokestack discharge is finally entered.The energy-efficient organic exhaust gas purifying system of the present invention passes through High Temperature Gas gas
Heat exchanger, high temperature furnace, level-one aqueous vapor heat exchanger, exhaust blower and the setting for discharging smokestack, the vehicle that will be collected in exhaust gas collecting pipe
Between the organic exhaust gas that generates heat exchange heating is first carried out in high temperature gas-gas heat exchanger, and realize preliminary exposition, i.e., the described organic waste
Gas realizes an incomplete decomposing in high temperature gas-gas heat exchanger；Organic exhaust gas after once decomposing is conveyed by high-temperature pipe
To high temperature furnace, the last decomposition in high temperature furnace realizes secondary complete decomposition, organic after secondary complete decomposition in high temperature furnace
Exhaust gas is thoroughly converted into water and carbon dioxide, and releases a large amount of heat, makes to form high temperature purification gas, the high temperature in high temperature furnace
High temperature purification gas in furnace passes through the communication port led to high temperature gas-gas heat exchanger and enters in high temperature gas-gas heat exchanger, for into
Enter the organic exhaust gas in high temperature gas-gas heat exchanger and carry out circulating-heating heating, effectively promotes heat utilization ratio and height in high temperature furnace
The heat transfer effect of warm gas-gas heat exchanger.The high temperature purification gas enters level-one aqueous vapor after the heat exchange cooling of high temperature gas-gas heat exchanger
Heat exchanger carries out aqueous vapor heat exchange with level-one aqueous vapor heat exchanger, through exhaust blower after lasting heat exchange cooling, after being drawn to discharge smokestack
Discharge.
With reference to Fig. 1, the organic exhaust gas is input in high temperature gas-gas heat exchanger after air-introduced machine, the air-introduced machine setting
Workshop organic exhaust gas is collected to exhaust gas collecting pipe by air-introduced machine in exhaust gas collecting pipe front end, and is input to high temperature
In gas-gas heat exchanger, convenient for the collection of organic exhaust gas.
With reference to Fig. 1, the heat exchanger tube in the high temperature gas-gas heat exchanger is Multihead screw heat exchange pipe, the multi-head spiral heat exchange
Pipe is made of high temperature resistant stainless steel material.The setting of Multihead screw heat exchange pipe intersects at for the material of equal quality
Common heat exchanger tube, the heat exchange area effectively increased, specifically, the heat exchange area of spiral heat exchange tube increase to original 1.3 times, into
And effective improving heat exchanging efficiency.Multihead screw heat exchange pipe is made of high temperature resistant stainless steel material, and high temperature resistant stainless steel can be
It is worked normally at 1000 DEG C, long service life, and then promotes the service life of entire high temperature gas-gas heat exchanger.
With reference to Fig. 1, the high temperature gas-gas heat exchanger is to change the organic exhaust gas of 40 DEG C of inlet through High Temperature Gas gas from low temperature
650 DEG C of gas-gas heat exchanger is warming up to after hot device, organic exhaust gas carries out preliminary primary decomposition in high temperature gas-gas heat exchanger, through one
Organic exhaust gas after secondary decomposition enters in high temperature furnace through high-temperature pipe.Organic exhaust gas is high in high temperature gas-gas heat exchanger and high temperature furnace
The process heat exchange of wet body, the temperature of organic exhaust gas are directly increased to nearly 700 DEG C, have greatly approached organic exhaust gas and have decomposed need completely
The temperature for wanting 800 DEG C obtains preliminary exposition in high temperature gas-gas heat exchanger, effectively increases heat exchange efficiency, is advantageously implemented section
Energy emission reduction, reduces operation cost of enterprises.
With reference to Fig. 1, the energy-efficient organic exhaust gas purifying system of the present invention further includes temperature control system, the temperature control system and height
Warm furnace connection, the high temperature furnace is interior to be equipped with the ceramic honey comb with accumulation of heat effect.The setting of ceramic honey comb effectively extends organic
The time that exhaust gas passes through, organic exhaust gas is enable sufficiently to decompose.The high temperature in-furnace temperature is controlled by temperature control system at 750 DEG C,
Organic exhaust gas carries out second decomposition after entering in high temperature furnace, and organic exhaust gas is thoroughly decomposed into carbon dioxide and water in high temperature furnace,
And release a large amount of heat.High temperature purification gas in the high temperature furnace cools down after being exchanged heat by high temperature gas-gas heat exchanger
To 190 DEG C, specifically, the high temperature purification gas in high temperature furnace enters height by the high-temperature gas input terminal of high temperature gas-gas heat exchanger
Warm gas-gas heat exchanger preheats the organic exhaust gas in high temperature gas-gas heat exchanger, after exchanging heat, exports high temperature gas-gas heat exchanger
Purification gas temperature at 200 DEG C or so.The energy-efficient organic exhaust gas purifying system of the present invention further includes high-temperature-hot-water equipment, institute
Stating high-temperature-hot-water equipment includes level-one water inlet and primary effluent mouth, and the level-one aqueous vapor heat exchanger includes that first class purification gas is logical
200 DEG C or so of the purification gas of road and level-one hot water channel, the high temperature gas-gas heat exchanger output enter the heat exchange of level-one aqueous vapor
In the first class purification gas passage of device, the water in the high-temperature-hot-water equipment enters level-one hot water by the outflow of primary effluent mouth and leads to
Road is returned in high-temperature-hot-water equipment after exchanging heat by level-one water inlet, and the coolant-temperature gage after heating in the high-temperature-hot-water equipment is
90 DEG C or more.90 DEG C or more of the hot water obtained after the exchange of level-one aqueous vapor exchanger heat can be used to print to workshop, is compound
Machine heat supply, in northern cold snap, it can also be used to which central heating can be used for the heat source of lithium-bromide absorption-type refrigerating machine, drive
Dynamic central air-conditioning.The setting of the high-temperature-hot-water equipment, the recuperation of heat for being conducive to level-one aqueous vapor heat exchanger utilize, and improve recuperation of heat
Utilization rate.The energy-efficient organic exhaust gas purifying system of the present invention, further includes second level aqueous vapor heat exchanger, the second level aqueous vapor heat exchanger
On discharge smokestack, the second level aqueous vapor heat exchanger includes secondary purification gas passage and second level hot water channel for setting, and described two
What the second level water inlet of grade aqueous vapor heat exchanger entered is tap water at normal temperature, water temperature at the secondary exit port of the second level aqueous vapor heat exchanger
It is 50 DEG C, the entrance of the secondary purification gas passage of the second level aqueous vapor heat exchanger and the first class purification gas of level-one aqueous vapor heat exchanger
The outlet in body channel, the purification gas after the heat exchange cooling of level-one aqueous vapor heat exchanger enter secondary purification gas after exhaust blower
Water in body channel, with second level hot water channel is discharged after carrying out heat exchange through discharge smokestack.It is prepared after second level aqueous vapor heat exchanger
Hot water temperature be 50 DEG C, which can be used to dormitory, kitchen supplying hot water, in northern cold snap, it can also be used to concentrate supply
It is warm, it can be used for the heat source of lithium-bromide absorption-type refrigerating machine, drive central air-conditioning.
Embodiment 2
It is machine room's fuel that methanol is selected in the area of no natural gas, in embodiment 1, at this point, fuel is except selection embodiment 1
Outside middle methanol, other alcohol-based fuels can also be selected.
It is fuel that the present embodiment, which selects ethyl alcohol, and the present invention provides a kind of energy-efficient organic exhaust gas purifying system, including with
In the exhaust gas collecting pipe for collecting the organic exhaust gas that workshop burning generates and for the row of the purified purification gas of exhaust system
Smokestack is put, further includes high temperature gas-gas heat exchanger, high temperature furnace, level-one aqueous vapor heat exchanger and exhaust blower.The high temperature gas-gas heat exchanger,
High temperature furnace, level-one aqueous vapor heat exchanger and exhaust blower setting are between exhaust gas collecting pipe and discharge smokestack.The High Temperature Gas gas changes
Hot device includes cryogenic gas channel and high temperature gas passage, and the low temperature organic exhaust gas in the exhaust gas collecting pipe enters High Temperature Gas
In the cryogenic gas channel of gas heat exchanger, exchange heat with the high-temperature gas in the high temperature gas passage in high temperature gas-gas heat exchanger
Heating, and preliminary exposition is carried out in high temperature gas-gas heat exchanger, after high temperature gas-gas heat exchanger heat exchange heating and preliminary exposition
Primary decomposition organic exhaust gas enters high temperature furnace by high-temperature pipe, continues second decomposition in high temperature furnace, thoroughly by organic exhaust gas
It is decomposed into carbon dioxide and water, the high temperature furnace is equipped with the communication port that the high temperature gas passage of high temperature gas-gas heat exchanger is connected to,
The high temperature purification gas generated in the high temperature furnace through organic exhaust gas decomposition caused heat release enters in high temperature gas-gas heat exchanger through communication port
High temperature gas passage in, the purification gas after high temperature gas-gas heat exchanger sequentially enters level-one aqueous vapor heat exchanger and exhaust blower
Afterwards, discharge smokestack discharge is finally entered.The energy-efficient organic exhaust gas purifying system of the present invention passes through high temperature gas-gas heat exchanger, high temperature
Furnace, level-one aqueous vapor heat exchanger, exhaust blower and the setting for discharging smokestack generate the workshop collected in exhaust gas collecting pipe organic
Exhaust gas first carries out heat exchange heating in high temperature gas-gas heat exchanger, and realizes preliminary exposition, i.e., the described organic exhaust gas is in High Temperature Gas gas
An incomplete decomposing is realized in heat exchanger；Organic exhaust gas after once decomposing is delivered in high temperature furnace by high-temperature pipe,
The last decomposition in high temperature furnace, realizes secondary complete decomposition, and the organic exhaust gas in high temperature furnace after secondary complete decomposition thoroughly turns
It changes water and carbon dioxide into, and releases a large amount of heat, make to form high temperature purification gas in high temperature furnace, the high temperature in the high temperature furnace
Purification gas passes through the communication port led to high temperature gas-gas heat exchanger and enters in high temperature gas-gas heat exchanger, for entrance High Temperature Gas gas
Organic exhaust gas in heat exchanger carries out circulating-heating heating, effectively promotes heat utilization ratio and high temperature gas-gas heat exchange in high temperature furnace
The heat transfer effect of device.The high temperature purification gas enters level-one aqueous vapor heat exchanger after the heat exchange cooling of high temperature gas-gas heat exchanger, with
Level-one aqueous vapor heat exchanger carries out aqueous vapor heat exchange and is discharged after being drawn to discharge smokestack through exhaust blower after lasting heat exchange cooling.
With reference to Fig. 1, the organic exhaust gas is input in high temperature gas-gas heat exchanger after air-introduced machine, the air-introduced machine setting
Workshop organic exhaust gas is collected to exhaust gas collecting pipe by air-introduced machine in exhaust gas collecting pipe front end, and is input to high temperature
In gas-gas heat exchanger, convenient for the collection of organic exhaust gas.
With reference to Fig. 1, the heat exchanger tube in the high temperature gas-gas heat exchanger is Multihead screw heat exchange pipe, the multi-head spiral heat exchange
Pipe is made of high temperature resistant stainless steel material.The setting of Multihead screw heat exchange pipe intersects at for the material of equal quality
Common heat exchanger tube, the heat exchange area effectively increased, specifically, the heat exchange area of spiral heat exchange tube increase to original 1.3 times, into
And effective improving heat exchanging efficiency.Multihead screw heat exchange pipe is made of high temperature resistant stainless steel material, and high temperature resistant stainless steel can be
It is worked normally at 1000 DEG C, long service life, and then promotes the service life of entire high temperature gas-gas heat exchanger.
With reference to Fig. 1, the high temperature gas-gas heat exchanger is to change the organic exhaust gas of 50 DEG C of inlet through High Temperature Gas gas from low temperature
700 DEG C of gas-gas heat exchanger is warming up to after hot device, organic exhaust gas carries out preliminary primary decomposition in high temperature gas-gas heat exchanger, through one
Organic exhaust gas after secondary decomposition enters in high temperature furnace through high-temperature pipe.Organic exhaust gas is high in high temperature gas-gas heat exchanger and high temperature furnace
Wet body is directly increased to 700 DEG C, has greatly approached organic exhaust gas and decomposed needs completely by heat exchange, the temperature of organic exhaust gas
800 DEG C of temperature obtains preliminary exposition in high temperature gas-gas heat exchanger, effectively increases heat exchange efficiency, is advantageously implemented energy conservation
Emission reduction reduces operation cost of enterprises.
With reference to Fig. 1, the energy-efficient organic exhaust gas purifying system of the present invention further includes temperature control system, the temperature control system and height
Warm furnace connection, the high temperature furnace is interior to be equipped with the ceramic honey comb with accumulation of heat effect.The setting of ceramic honey comb effectively extends organic
The time that exhaust gas passes through, organic exhaust gas is enable sufficiently to decompose.The high temperature in-furnace temperature is controlled by temperature control system at 800 DEG C,
Organic exhaust gas carries out second decomposition after entering in high temperature furnace, and organic exhaust gas is thoroughly decomposed into carbon dioxide and water in high temperature furnace,
And release a large amount of heat.High temperature purification gas in the high temperature furnace cools down after being exchanged heat by high temperature gas-gas heat exchanger
To 200 DEG C, specifically, the high temperature purification gas in high temperature furnace enters height by the high-temperature gas input terminal of high temperature gas-gas heat exchanger
Warm gas-gas heat exchanger preheats the organic exhaust gas in high temperature gas-gas heat exchanger, after exchanging heat, exports high temperature gas-gas heat exchanger
Purification gas temperature at 200 DEG C or so.The energy-efficient organic exhaust gas purifying system of the present invention further includes high-temperature-hot-water equipment, institute
Stating high-temperature-hot-water equipment includes level-one water inlet and primary effluent mouth, and the level-one aqueous vapor heat exchanger includes that first class purification gas is logical
200 DEG C or so of the purification gas of road and level-one hot water channel, the high temperature gas-gas heat exchanger output enter the heat exchange of level-one aqueous vapor
In the first class purification gas passage of device, the water in the high-temperature-hot-water equipment enters level-one hot water by the outflow of primary effluent mouth and leads to
Road is returned in high-temperature-hot-water equipment after exchanging heat by level-one water inlet, and the coolant-temperature gage after heating in the high-temperature-hot-water equipment is
90 DEG C or more.90 DEG C or more of the hot water obtained after the exchange of level-one aqueous vapor exchanger heat can be used to print to workshop, is compound
Machine heat supply, in northern cold snap, it can also be used to which central heating can be used for the heat source of lithium-bromide absorption-type refrigerating machine, drive
Dynamic central air-conditioning.The setting of the high-temperature-hot-water equipment, the recuperation of heat for being conducive to level-one aqueous vapor heat exchanger utilize, and improve recuperation of heat
Utilization rate.The energy-efficient organic exhaust gas purifying system of the present invention, further includes second level aqueous vapor heat exchanger, the second level aqueous vapor heat exchanger
On discharge smokestack, the second level aqueous vapor heat exchanger includes secondary purification gas passage and second level hot water channel for setting, and described two
What the second level water inlet of grade aqueous vapor heat exchanger entered is tap water at normal temperature, water temperature at the secondary exit port of the second level aqueous vapor heat exchanger
It is 50 DEG C, the entrance of the secondary purification gas passage of the second level aqueous vapor heat exchanger and the first class purification gas of level-one aqueous vapor heat exchanger
The outlet in body channel, the purification gas after the heat exchange cooling of level-one aqueous vapor heat exchanger enter secondary purification gas after exhaust blower
Water in body channel, with second level hot water channel is discharged after carrying out heat exchange through discharge smokestack.It is prepared after second level aqueous vapor heat exchanger
Hot water temperature be 70 DEG C, which can be used to dormitory, kitchen supplying hot water, in northern cold snap, it can also be used to concentrate supply
It is warm, it can be used for the heat source of lithium-bromide absorption-type refrigerating machine, drive central air-conditioning.
Embodiment 3
In the area for having natural gas, selection natural gas is machine room's fuel, and the present invention provides a kind of energy-efficient organic waste
Gas purification system is purified including the exhaust gas collecting pipe for collecting the organic exhaust gas that workshop burning generates and for exhaust system
The discharge smokestack of purification gas afterwards further includes high temperature gas-gas heat exchanger, high temperature furnace, level-one aqueous vapor heat exchanger and exhaust blower.Institute
State high temperature gas-gas heat exchanger, high temperature furnace, level-one aqueous vapor heat exchanger and exhaust blower setting exhaust gas collecting pipe and discharge smokestack it
Between.The high temperature gas-gas heat exchanger includes cryogenic gas channel and high temperature gas passage, the low temperature in the exhaust gas collecting pipe
Organic exhaust gas enters in the cryogenic gas channel of high temperature gas-gas heat exchanger, in the high temperature gas passage in high temperature gas-gas heat exchanger
High-temperature gas carry out heat exchange heating, and carry out preliminary exposition in high temperature gas-gas heat exchanger, exchange heat through high temperature gas-gas heat exchanger
Primary decomposition organic exhaust gas after heating and preliminary exposition enters high temperature furnace by high-temperature pipe, continues secondary point in high temperature furnace
Solution, is thoroughly decomposed into carbon dioxide and water for organic exhaust gas, and the high temperature furnace is equipped with the high-temperature gas of high temperature gas-gas heat exchanger
The communication port of channel connection, the interior high temperature purification gas generated through organic exhaust gas decomposition caused heat release of the high temperature furnace enter through communication port
In high temperature gas passage in high temperature gas-gas heat exchanger, the purification gas after high temperature gas-gas heat exchanger sequentially enters level-one aqueous vapor
After heat exchanger and exhaust blower, discharge smokestack discharge is finally entered.The energy-efficient organic exhaust gas purifying system of the present invention passes through high temperature
Gas-gas heat exchanger, high temperature furnace, level-one aqueous vapor heat exchanger, exhaust blower and the setting for discharging smokestack, will collect in exhaust gas collecting pipe
The organic exhaust gas that generates of workshop heat exchange heating is first carried out in high temperature gas-gas heat exchanger, and realize preliminary exposition, i.e., it is described to have
Machine exhaust gas realizes an incomplete decomposing in high temperature gas-gas heat exchanger；Organic exhaust gas after once decomposing passes through high-temperature pipe
It is delivered in high temperature furnace, the last decomposition in high temperature furnace, secondary complete decomposition is realized, in high temperature furnace after secondary complete decomposition
Organic exhaust gas is thoroughly converted into water and carbon dioxide, and releases a large amount of heat, makes to form high temperature purification gas in high temperature furnace, described
High temperature purification gas in high temperature furnace passes through the communication port led to high temperature gas-gas heat exchanger and enters in high temperature gas-gas heat exchanger, is used for
Circulating-heating heating is carried out to the organic exhaust gas entered in high temperature gas-gas heat exchanger, effectively promotes the heat utilization ratio in high temperature furnace
With the heat transfer effect of high temperature gas-gas heat exchanger.The high temperature purification gas enters level-one after the heat exchange cooling of high temperature gas-gas heat exchanger
Aqueous vapor heat exchanger carries out aqueous vapor heat exchange with level-one aqueous vapor heat exchanger and is drawn to discharge cigarette through exhaust blower after lasting heat exchange cooling
It is discharged after window.
With reference to Fig. 1, the organic exhaust gas is input in high temperature gas-gas heat exchanger after air-introduced machine, the air-introduced machine setting
Workshop organic exhaust gas is collected to exhaust gas collecting pipe by air-introduced machine in exhaust gas collecting pipe front end, and is input to high temperature
In gas-gas heat exchanger, convenient for the collection of organic exhaust gas.
With reference to Fig. 1, the heat exchanger tube in the high temperature gas-gas heat exchanger is Multihead screw heat exchange pipe, the multi-head spiral heat exchange
Pipe is made of high temperature resistant stainless steel material.The setting of Multihead screw heat exchange pipe intersects at for the material of equal quality
Common heat exchanger tube, the heat exchange area effectively increased, specifically, the heat exchange area of spiral heat exchange tube increase to original 1.3 times, into
And effective improving heat exchanging efficiency.Multihead screw heat exchange pipe is made of high temperature resistant stainless steel material, and high temperature resistant stainless steel can be
It is worked normally at 1000 DEG C, long service life, and then promotes the service life of entire high temperature gas-gas heat exchanger.
With reference to Fig. 1, the high temperature gas-gas heat exchanger is to change the organic exhaust gas of 60 DEG C of inlet through High Temperature Gas gas from low temperature
750 DEG C of gas-gas heat exchanger is warming up to after hot device, organic exhaust gas carries out preliminary primary decomposition in high temperature gas-gas heat exchanger, through one
Organic exhaust gas after secondary decomposition enters in high temperature furnace through high-temperature pipe.Organic exhaust gas is high in high temperature gas-gas heat exchanger and high temperature furnace
Wet body is directly increased to as many as 700 DEG C, has greatly approached organic exhaust gas and decomposed completely by heat exchange, the temperature of organic exhaust gas
The temperature for needing 800 DEG C obtains preliminary exposition in high temperature gas-gas heat exchanger, effectively increases heat exchange efficiency, is advantageously implemented
Energy-saving and emission-reduction reduce operation cost of enterprises.
With reference to Fig. 1, the energy-efficient organic exhaust gas purifying system of the present invention further includes temperature control system, the temperature control system and height
Warm furnace connection, the high temperature furnace is interior to be equipped with the ceramic honey comb with accumulation of heat effect.The setting of ceramic honey comb effectively extends organic
The time that exhaust gas passes through, organic exhaust gas is enable sufficiently to decompose.The high temperature in-furnace temperature is controlled by temperature control system at 850 DEG C,
Organic exhaust gas carries out second decomposition after entering in high temperature furnace, and organic exhaust gas is thoroughly decomposed into carbon dioxide and water in high temperature furnace,
And release a large amount of heat.High temperature purification gas in the high temperature furnace cools down after being exchanged heat by high temperature gas-gas heat exchanger
To 210 DEG C, specifically, the high temperature purification gas in high temperature furnace enters height by the high-temperature gas input terminal of high temperature gas-gas heat exchanger
Warm gas-gas heat exchanger preheats the organic exhaust gas in high temperature gas-gas heat exchanger, after exchanging heat, exports high temperature gas-gas heat exchanger
Purification gas temperature at 200 DEG C or so.The energy-efficient organic exhaust gas purifying system of the present invention further includes high-temperature-hot-water equipment, institute
Stating high-temperature-hot-water equipment includes level-one water inlet and primary effluent mouth, and the level-one aqueous vapor heat exchanger includes that first class purification gas is logical
200 DEG C or so of the purification gas of road and level-one hot water channel, the high temperature gas-gas heat exchanger output enter the heat exchange of level-one aqueous vapor
In the first class purification gas passage of device, the water in the high-temperature-hot-water equipment enters level-one hot water by the outflow of primary effluent mouth and leads to
Road is returned in high-temperature-hot-water equipment after exchanging heat by level-one water inlet, and the coolant-temperature gage after heating in the high-temperature-hot-water equipment is
90 DEG C or more.90 DEG C or more of the hot water obtained after the exchange of level-one aqueous vapor exchanger heat can be used to print to workshop, is compound
Machine heat supply, in northern cold snap, it can also be used to which central heating can be used for the heat source of lithium-bromide absorption-type refrigerating machine, drive
Dynamic central air-conditioning.The setting of the high-temperature-hot-water equipment, the recuperation of heat for being conducive to level-one aqueous vapor heat exchanger utilize, and improve recuperation of heat
Utilization rate.The energy-efficient organic exhaust gas purifying system of the present invention, further includes second level aqueous vapor heat exchanger, the second level aqueous vapor heat exchanger
On discharge smokestack, the second level aqueous vapor heat exchanger includes secondary purification gas passage and second level hot water channel for setting, and described two
What the second level water inlet of grade aqueous vapor heat exchanger entered is tap water at normal temperature, water temperature at the secondary exit port of the second level aqueous vapor heat exchanger
It is 80 DEG C, the entrance of the secondary purification gas passage of the second level aqueous vapor heat exchanger and the first class purification gas of level-one aqueous vapor heat exchanger
The outlet in body channel, the purification gas after the heat exchange cooling of level-one aqueous vapor heat exchanger enter secondary purification gas after exhaust blower
Water in body channel, with second level hot water channel is discharged after carrying out heat exchange through discharge smokestack.It is prepared after second level aqueous vapor heat exchanger
Hot water temperature be 80 DEG C, which can be used to dormitory, kitchen supplying hot water；In northern cold snap, it can also be used to concentrate and supply
It is warm；It can be used for the heat source of lithium-bromide absorption-type refrigerating machine, drive central air-conditioning.
With reference to Fig. 1, in summary several embodiments, the energy-efficient organic exhaust gas purifying system of the present invention are having Tian Ran Cuttings
Area, it is preferential to select natural gas as machine room's fuel；In the area of no natural gas supply, such as methanol, ethyl alcohol are selected
Equal alcohol-based fuels are as machine room's fuel.
With reference to Fig. 1, in summary several embodiments, the waste gas purification of the energy-efficient organic exhaust gas purifying system of the present invention and
Recuperation of heat is as follows using principle:
The organic exhaust gas that workshop is collected is input to high temperature gas-gas heat exchanger by air-introduced machine, carries out hot friendship in high temperature gas-gas heat exchanger
It changes and is warming up to 700 DEG C or so, and after carrying out preliminary exposition, high temperature furnace is entered by high-temperature pipe, honeycomb pottery is placed in high temperature furnace
Porcelain, ceramic honey comb not only play the role of accumulation of heat, but also play and extend exhaust gas in the residence time of high-temperature region, make to enter organic
Exhaust gas sufficiently decomposes, and reaches 99.8% purification efficiency.800 DEG C or so are maintained at by temperature control system in high temperature furnace, exhaust gas is through excessively high
Warm furnace thoroughly will be decomposed into carbon dioxide and water, while release a large amount of heat, into high temperature gas-gas heat exchanger and enter height
Organic exhaust gas in warm gas-gas heat exchanger carries out heat exchange, input terminal is entered by heat exchange the organic waste of high temperature gas-gas heat exchanger
Gas preheating exports the purification gas temperature of high temperature gas-gas heat exchanger at 200 DEG C or so, through hot in high temperature gas-gas heat exchanger
Purification gas after exchange cooling enters back into level-one aqueous vapor heat exchanger, and the water in high-temperature-hot-water equipment is heated to 90--100 DEG C,
Smokestack is discharged to by exhaust blower again, adds second level aqueous vapor heat exchanger again in the lower end of chimney, the water and purification in second level aqueous vapor heat exchanger
After gas heat exchange, the temperature of water is heated to 60-80 DEG C, finally arranges by the purification gas of purification and heat exchange from chimney top
Out.Being heated to 90--100 DEG C of hot water can be used to workshop printing, compounding machine heat supply；Heat in northern area, water tank
Water winter can also heat to workshop；It is heated to 60--80 DEG C of hot water, can be used to dormitory, kitchen supplying hot water, in northern cold
Cold day gas, it can also be used to central heating.
Above-described embodiment is only specific embodiments of the present invention, and the description thereof is more specific and detailed, but can not therefore and
It is interpreted as limitations on the scope of the patent of the present invention.It should be pointed out that for those of ordinary skill in the art, not taking off
Under the premise of from present inventive concept, various modifications and improvements can be made, these obvious alternative forms belong to this
The protection scope of invention.
Claims (9)
1. a kind of energy-efficient organic exhaust gas purifying system, including the exhaust gas collecting pipe and use for collecting workshop organic exhaust gas
In the discharge smokestack of the purified purification gas of exhaust system, which is characterized in that further include high temperature gas-gas heat exchanger, high temperature furnace,
Level-one aqueous vapor heat exchanger and exhaust blower, the high temperature gas-gas heat exchanger, high temperature furnace, level-one aqueous vapor heat exchanger and exhaust blower setting exist
Between exhaust gas collecting pipe and discharge smokestack, the high temperature gas-gas heat exchanger includes cryogenic gas channel and high temperature gas passage,
Organic exhaust gas in the exhaust gas collecting pipe enters the cryogenic gas channel of high temperature gas-gas heat exchanger, with high temperature gas-gas heat exchanger
High-temperature gas carries out heat exchange heating in interior high temperature gas passage, preliminary exposition is carried out in high temperature gas-gas heat exchanger, through high temperature
Primary decomposition organic exhaust gas after gas-gas heat exchanger heat exchange heating and preliminary exposition enters high temperature furnace by high-temperature pipe, in high temperature
Continue second decomposition in furnace, organic exhaust gas is thoroughly decomposed into carbon dioxide and water, the high temperature furnace is equipped with High Temperature Gas gas and changes
The communication port of the high temperature gas passage connection of hot device, the interior high temperature purification gas generated through organic exhaust gas decomposition caused heat release of the high temperature furnace
Body enters in the high temperature gas passage in high temperature gas-gas heat exchanger through communication port, the purification gas after high temperature gas-gas heat exchanger according to
After secondary entrance level-one aqueous vapor heat exchanger and exhaust blower, discharge smokestack discharge is finally entered.
2. energy-efficient organic exhaust gas purifying system according to claim 1, which is characterized in that the organic exhaust gas passes through
Air-introduced machine is input in high temperature gas-gas heat exchanger, and the air-introduced machine is arranged in exhaust gas collecting pipe front end.
3. energy-efficient organic exhaust gas purifying system according to claim 2, which is characterized in that the high temperature gas-gas heat exchange
Heat exchanger tube in device is Multihead screw heat exchange pipe, and the Multihead screw heat exchange pipe is made of high temperature resistant stainless steel material.
4. energy-efficient organic exhaust gas purifying system according to claim 3, which is characterized in that the high temperature gas-gas heat exchange
Device is the gas that the organic exhaust gas of 50 DEG C ± 10 DEG C of inlet is warming up to after high temperature gas-gas heat exchanger to 700 DEG C ± 50 DEG C from low temperature
Gas heat exchanger, organic exhaust gas carry out preliminary primary decomposition, the organic exhaust gas warp after once decomposing in high temperature gas-gas heat exchanger
High-temperature pipe enters in high temperature furnace.
5. according to claim 1 to energy-efficient organic exhaust gas purifying system described in any one of 4 claims, feature exists
In further including temperature control system, the temperature control system is connect with high temperature furnace, and the honeycomb with accumulation of heat effect is equipped in the high temperature furnace
Ceramics.
6. energy-efficient organic exhaust gas purifying system according to claim 5, which is characterized in that the high temperature in-furnace temperature
By temperature control system control at 800 DEG C ± 50 DEG C, organic exhaust gas carries out second decomposition after entering in high temperature furnace, and organic exhaust gas is in high temperature
It is thoroughly decomposed into carbon dioxide and water in furnace, and releases a large amount of heat.
7. energy-efficient organic exhaust gas purifying system according to claim 6, which is characterized in that the height in the high temperature furnace
Warm purification gas carries out being cooled to 200 DEG C ± 10 DEG C after exchanging heat by high temperature gas-gas heat exchanger.
8. energy-efficient organic exhaust gas purifying system according to claim 7, which is characterized in that further include that high-temperature-hot-water is set
Standby, the high-temperature-hot-water equipment includes level-one water inlet and primary effluent mouth, and the level-one aqueous vapor heat exchanger includes first class purification
Gas passage and level-one hot water channel, the purification gas in the high temperature gas-gas heat exchanger enter the level-one of level-one aqueous vapor heat exchanger
In purification gas channel, the water in the high-temperature-hot-water equipment enters level-one hot water channel by the outflow of primary effluent mouth, through exchanging heat
It is returned in high-temperature-hot-water equipment by level-one water inlet afterwards, the coolant-temperature gage after heating in the high-temperature-hot-water equipment is 90 DEG C or more.
9. energy-efficient organic exhaust gas purifying system according to claim 7, which is characterized in that further include that second level aqueous vapor is changed
Hot device, on discharge smokestack, the second level aqueous vapor heat exchanger includes that secondary purification gas is logical for the second level aqueous vapor heat exchanger setting
Road and second level hot water channel, what the second level water inlet of the second level aqueous vapor heat exchanger entered is tap water at normal temperature, the second level water
Water temperature is 50 DEG C -80 DEG C at the secondary exit port of gas heat exchanger, and the secondary purification gas passage of the second level aqueous vapor heat exchanger enters
The outlet of mouth and the first class purification gas passage of level-one aqueous vapor heat exchanger, it is net after the heat exchange cooling of level-one aqueous vapor heat exchanger
Change after gas carries out heat exchange into the water in secondary purification gas passage, with second level hot water channel after exhaust blower through discharging cigarette
Window discharge.
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