CN209512051U - Print organic exhaust gas harmless treatment and energy recycling system - Google Patents
Print organic exhaust gas harmless treatment and energy recycling system Download PDFInfo
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- CN209512051U CN209512051U CN201822267078.6U CN201822267078U CN209512051U CN 209512051 U CN209512051 U CN 209512051U CN 201822267078 U CN201822267078 U CN 201822267078U CN 209512051 U CN209512051 U CN 209512051U
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Abstract
The utility model discloses a kind of printing organic exhaust gas harmless treatment and energy recycling system, which is mainly made of print system, accumulation of heat incinerator, heat exchange unit, water tank and water pump.Accumulation of heat incinerator is connect with heat exchange unit, and heat exchange unit is connect with water tank, and water tank is connect with print system, is provided with water pump between heat exchange unit and water tank, between water tank and print system.Printing organic exhaust gas enters accumulation of heat incinerator and carries out oxygenolysis, the high temperature incineration exhaust gas of generation enters heat exchange unit, heat transfer is to media such as flowing waters in heat exchange unit, the water for carrying heat enters in water tank under the promotion of water pump, print system is forced by water pump again, the drying for printed matter.Maintenance workload can be reduced using the printing organic exhaust gas harmless treatment and energy recycling system, reduce operating cost, enhance system run all right and safety, improve utilization rate of waste heat.
Description
Technical field
The utility model relates to the processing for the organic exhaust gas that printing industry drying process generates, in particular to one kind is printed with
The harmless treatment of machine exhaust gas and energy recycling system.
Background technique
Printing is to arrive printing ink transfer through processes such as plate-making, Shi Mo, pressurizations the original copys such as text, picture, photo, anti-fake
On the material surfaces such as paper, fabric, plastic products, leather, the technology of batch duplicating original copy content.Printing technology has become and work
The inseparable technology of industry production, people's life, especially colored printing, the most common representative is exactly various packagings
The production process of material.
Ink is the important materials for printing, it is expressed the pattern and text on stock by printing or air brushing.Oil
Include main component and auxiliary element in ink, is made of resin, pigment, filler, auxiliary agent and solvent.Solvent therein is mainly waved
Hair property solvent, the printed matter needs for completing printing are adequately dried, and the solvent in ink is evaporated out, to make ink
Attachment on the substrate, completes printing process.
Drying course generates largely containing the exhaust gas of volatile organic solvent, and direct emission can be to the practitioner of printing industry
Health generates high risks, and there is the risk of explosion, serious pollution can be also generated to ambient enviroment, it is therefore desirable to carry out to it
Harmless treatment.Currently, the exhaust gas to printing industry mainly uses combustion method to administer, the exhaust gas that drying course is generated is straight
It connects into rotary accumulation of heat incinerator, is either concentrated using zeolite runner or activated carbon adsorption, the gas after absorption is straight
Outlet is connect, then is desorbed with a small amount of hot gas, the high-concentration organic waste gas to get off is desorbed and is passed through rotary accumulation of heat incinerator again.On
State processing method there are daily maintenances that cumbersome, one-time investment is big, fluctuation of service, to need frequent starting more additional to consume
The problems such as fuel, low utilization rate of waste heat.
In conclusion that there are daily maintenances is cumbersome, consumption fuel is more, runs for the treatment process of current printing organic exhaust gas
Unstable, the problems such as utilization rate of waste heat is low, it is therefore desirable to invent a kind of printing organic exhaust gas harmless treatment and energy regenerating system
System reduces operating cost to reduce maintenance workload, enhances system run all right, improves utilization rate of waste heat.
Utility model content
The purpose of the utility model is to provide a kind of printing organic exhaust gas harmless treatment and energy recycling systems, adopt
Maintenance workload can be reduced with the system, reduces operating cost, enhances system run all right and safety, improves waste heat benefit
Use efficiency.
In order to solve the above-mentioned technical problem, the utility model provides a kind of printing organic exhaust gas harmless treatment and energy returns
Receipts system, as shown in Figure 1, the printing organic exhaust gas harmless treatment and energy recycling system include print system, accumulation of heat burning
Furnace, heat exchange unit, water tank, water pump.
Print system includes drying unit, and drying unit includes air-water heat exchanger.Drying unit is for printed matter ink
Drying, air-water heat exchanger therein are used to dry the heating of gas, and the drying gas after heating can more quickly will be in ink
Solvent be evaporated.
Accumulation of heat incinerator (RTO) is the heat generated when being decomposed using heat storage storage organic exhaust gas, and is stored up with heat storage
The thermal energy deposited decomposes not processed organic exhaust gas, in addition to consuming a small amount of additional dyestuff in start-up course, in normal course of operation
Without consuming extra fuel, it is mainly used for the situation that organic exhaust gas concentration is lower but exhausted air quantity is larger, the purification of organic exhaust gas
Efficiency is up to 99.5%.Accumulation of heat incinerator is divided into rotary accumulation of heat incinerator, two bed accumulation of heat incinerators, three bed accumulation of heats burning
Furnace and multibed type accumulation of heat incinerator.
The preferred accumulation of heat incinerator of the utility model includes three bed accumulation of heat incinerators.
Inventors have found that three bed accumulation of heat incinerators of selection have great advantages.Firstly, three bed accumulation of heat incinerators are tieed up
Shield is convenient, needs the mainly traditional valve of daily maintenance, and easy to operate, maintenance cost is low, and used in the prior art
The main component of rotary accumulation of heat incinerator is rotary multi-way valve, and action principle is the phase by two components in rotary multi-way valve
To movement, the on-off of different pipelines is realized, need far more precise end face seal, safeguard cumbersome, higher cost；Secondly, three
Bed accumulation of heat incinerator is designed using cold stoking formula, and heat insulation effect is good, when shutdown is restarted, only needs a small amount of extra fuel, and
Rotary accumulation of heat incinerator needs to consume more extra fuel when restarting.
Heat exchange unit includes air-water heat exchanger and gas-gas heat exchanger.Accumulation of heat incinerator gas outlet come out gas temperature compared with
Height initially enters air-water heat exchanger, and heat is transmitted in water from gas, can will be wherein big since the specific heat capacity of water is larger
Partial heat exchanges in water, and can make it is waterborne be raised to higher temperature, this part is transferred to the energy in water and belongs to
High-quality thermal energy is easy to utilize.The gas come out from air-water heat exchanger enters gas-gas heat exchanger.It is come out from accumulation of heat incinerator gas outlet
Gas after air-water heat exchanger, heat content is relatively small, if also using the biggish water of specific heat capacity as Jie for receiving heat
Matter, then water temperature is lower, belongs to low-quality thermal energy, it is difficult to efficiently utilize, therefore select the lesser air of specific heat capacity as reception heat
Medium, the higher gas of temperature can also be obtained in this way, can be efficiently utilized.
An example of temperature change is as follows in heat exchange unit use process: the gas temperature of air-water heat exchanger air inlet is
350 DEG C, 100 DEG C of the gas temperature of gas outlet, the fluid temperature of water inlet is 70 DEG C, and the fluid temperature of water outlet is 90 DEG C, gas
The waste heat recovery rate of water- to-water heat exchanger is 73%.The gas temperature of gas-gas heat exchanger waste gas from incinerator air inlet is 100 DEG C, waste gas from incinerator
40 DEG C of the gas temperature of gas outlet, the temperature of gas inlet to be heated are 0 DEG C, and the temperature of gas outlet to be heated is 20
DEG C, the waste heat recovery rate 60% of gas-gas heat exchanger.Total waste heat recovery rate is 89%.
It is further preferred that air-water heat exchanger and gas-gas heat exchanger use counterflow heat exchange, as shown in figure 3, for receiving heat
The flow direction for the exhaust gas that the overall flow direction of the water and air of amount and accumulation of heat incinerator come out is on the contrary, overall heat transfer in this way
Motive force is maximum, can accelerate heat transfer, reduces the heat exchange area of heat exchanger, improves waste heat recovery rate.
Water tank is provided in the printing organic exhaust gas harmless treatment and energy recycling system.The drying of print system
When unit starting, the concentration of volatile organic matter is lower in the exhaust gas of generation, be not appropriate for enter accumulation of heat incinerator handle, i.e., this
When accumulation of heat incinerator can not generate high-temp waste gas, and drying unit just needs to be heated to set by gas therein before starting to work
Fixed temperature.It follows that drying unit needs heat gas and accumulation of heat incinerator to generate heat and asynchronous.In addition,
The heat that accumulation of heat incinerator generates in a certain period is more, and the heat demand amount of drying unit is smaller in the period, heat
Yield and demand be not also identical.To solve this problem, inventor is in the printing organic exhaust gas harmless treatment and energy
In recovery system be provided with water tank, using water as carry and storage heat medium, the heat that can thus reconcile generate with
Asynchronous between demand, unmatched contradiction reaches the mesh of the waste heat efficiently generated using printing organic exhaust gas harmless treatment
's.
It is further preferred that water tank includes but is not limited to stainless steel water tank, glass reinforced plastic water tank etc..The table of water tank
Face is additionally provided with insulating layer.
Water tank is provided with the first water outlet, the first water inlet, the second water outlet and the second water inlet.
The connection relationship of each component part of the printing organic exhaust gas harmless treatment and energy recycling system is as follows: print
The organic exhaust gas outlet of brush system is connect with the air inlet of accumulation of heat incinerator, and the gas outlet of accumulation of heat incinerator is disposed with air water
The water inlet of heat exchanger and gas-gas heat exchanger, the first water outlet of water tank and air-water heat exchanger connects, air-water heat exchanger into
Water pump, the water outlet of air-water heat exchanger and the first water inlet of water tank are provided between the mouth of a river and the first water outlet of water tank
Connection, the second water outlet of water tank are connect with the water inlet of air-water heat exchanger in drying unit, the second water outlet of water tank
And water pump is provided in drying unit between the water inlet of air-water heat exchanger, the water outlet of air-water heat exchanger and storage in drying unit
Second water inlet of water tank connects.
It is further preferred that partition is also provided in water tank, as shown in figure 4, partition is empty by the inside of water tank
Between be divided into interconnected two parts, the lower end of partition and the bottom surface of water tank and side and be tightly connected, the upper end of partition with
There is gap between the upper bottom surface of water tank.
It is that the space in water tank is divided into interconnected two parts that the purpose of partition is arranged in water tank, and a part is set
High-temperature region, the second water inlet of water tank and the setting of the first water outlet are set in the high-temperature region, the water outlet of air-water heat exchanger connects
The first water inlet in water tank is connect, therefore the high-temperature water through high-temp waste gas heating enters the high-temperature region, air water in drying unit
The water inlet of heat exchanger is connected to the second water outlet of water tank, and high-temperature water can enter in drying unit to be heated in air-water heat exchanger
Gas is dried, water at low temperature is changed into.Another part is set as low-temperature space, the first water outlet of water tank and the setting of the second water inlet
The water outlet of air-water heat exchanger is connected to the second water inlet of water tank, therefore drying list in the low-temperature space, drying unit
Water at low temperature after transferring heat to drying unit in member after air-water heat exchanger enters the low-temperature space, the water inlet of air-water heat exchanger
It is connected to the first water outlet of water tank, water at low temperature, which can enter in air-water heat exchanger, absorbs heat, is changed into high-temperature water.
After partition is set in water tank, it can be effectively prevent the back-mixing of different temperatures water in water tank, avoid high-temperature water whole
Or part enters in air-water heat exchanger, while water at low temperature can also be avoided completely or partially to enter air-water heat exchanger in drying unit
In, cause the temperature difference to reduce, driving force of heat transfer reduction, influences heat transfer efficiency.
Still more preferably, the partition is provided with insulating layer or partition is made of heat-barrier material.
It is further preferred that as shown in Fig. 2, between the water inlet of air-water heat exchanger and the first water outlet of water tank again
A water pump is added, and is arranged in parallel with original water pump.
Be arranged between the water inlet of air-water heat exchanger and the first water outlet of water tank two water pumps and be in order to avoid
Lead to unexpected termination of pumping because of fault of water pump.Because accumulation of heat incinerator discharge exhaust gas temperature it is higher, if water pump because failure is out of service,
Then the heat in air-water heat exchanger can not be taken away in time, water therein can overheat and form steam, pressure rise, if therein
Pressure rise just has the danger of explosion to the power limit of air-water heat exchanger.
Two water pumps can use manual control, if a water pump, which breaks down, leads to termination of pumping, manually by another water pump
And related valve is opened, and the water in air-water heat exchanger is kept to be in flow regime；Automatic control mode can also be used, in pipeline
Upper setting flow monitoring device, when below flow-reduction to setting value, monitoring device issues electric signal, starts spare water pump
And related valve, to keep the flow of water in pipeline.
The organic exhaust gas outlet of the print system of the printing organic exhaust gas harmless treatment and energy recycling system and storage
Air-introduced machine is additionally provided between the air inlet of thermal incinerator.
The gas-gas heat exchanger of the printing organic exhaust gas harmless treatment and energy recycling system is also connected with heating blower
And heating unit, the heating for workshop.
Printing organic exhaust gas harmless treatment provided by the utility model and energy recycling system overcome prior art print
It is cumbersome brushed with daily maintenance present in machine waste gas treatment process, fuel is more for consumption, fluctuation of service, utilization rate of waste heat are low etc. lacks
It falls into, preferable device can be provided for printing organic exhaust gas harmless treatment.
Detailed description of the invention
Fig. 1 is printing organic exhaust gas harmless treatment and energy recycling system schematic diagram；
Fig. 2 is preferred printing organic exhaust gas harmless treatment and energy recycling system schematic diagram；
Fig. 3 is heat exchanger counterflow heat exchange schematic diagram；
Fig. 4 is the water tank schematic diagram for being provided with partition；
Wherein:
1, accumulation of heat incinerator, 2, heat exchange unit, 3, water tank, 5, air-introduced machine, 6, print system, 7, heating blower, 8, confession
Warm unit；
The air inlet of 1-1, accumulation of heat incinerator, the gas outlet of 1-2, accumulation of heat incinerator；
2-1, the first air-water heat exchanger, 2-2, gas-gas heat exchanger；
The first water outlet of 3-1, water tank, the first water inlet of 3-2, water tank, the second water outlet of 3-3, water tank,
The second water inlet of 3-4, water tank；
4-1, the first water pump, 4-2, the second water pump, 4-3, third water pump；
6-1, drying unit, the effect of 6-1-1, second air-water heat exchanger the utility model
It is using the printing organic exhaust gas harmless treatment of the utility model and the beneficial effect of energy recycling system: 1. adopts
The easy maintenance of three bed accumulation of heat incinerators, reduces maintenance cost；2. the heat insulation effect of three bed accumulation of heat incinerators is good,
Less extra fuel is only needed when shutdown is restarted, and reduces energy consumption；3. heat exchange unit is changed provided with air water simultaneously
Hot device and gas-gas heat exchanger enable organic exhaust gas to burn the waste heat classified utilization generated, improve utilization rate；4. increasing storage
Water tank solves VOCs treatment and generates asynchronous, unmatched contradiction during heat and heat utilization two, improves system
The regulating power of system increases the utilization efficiency of heat；5. being provided with two sets before the water inlet of air-water heat exchanger to follow for water
The pumping system of ring improves the safety coefficient and reliability of system.
Specific embodiment
Embodiment 1
Printing organic exhaust gas is carried out using printing organic exhaust gas harmless treatment as shown in Figure 1 and energy recycling system
Processing, accumulation of heat incinerator 1 select three bed accumulation of heat incinerators, and water tank 3 is stainless steel water tank.
Concentration into the printing organic exhaust gas of accumulation of heat incinerator 1 is about 6000mg/Nm3, the gas outlet of accumulation of heat incinerator 1
The waste gas from incinerator temperature of 1-2 is 350 DEG C, and the temperature into the water of the first air-water heat exchanger 2-1 is 70 DEG C, and the first air water of outflow changes
The temperature of the water of hot device 2-1 is 90 DEG C, and the temperature for flowing out the exhaust gas of the first air-water heat exchanger 2-1 is 100 DEG C, is changed in the first air water
In hot device 2-1, about 73% heat is transferred in water from waste gas from incinerator.
The temperature of the water flowed out from the second water outlet 3-3 of water tank 3 is 86 DEG C, from the second air water of drying unit 6-1
The temperature of the water of the water outlet outflow of heat exchanger 6-1-1 is 70 DEG C, and drying unit 6-1 is obtained from the second air-water heat exchanger 6-1-1
To energy account for its always consume energy 58%, therefore using the utility model the harmless treatment of printing organic exhaust gas and energy regenerating
System can save 58% energy consumption of drying unit 6-1.
Compared with the technical solution of the prior art, the printing organic exhaust gas harmless treatment of the utility model and energy regenerating
System is also provided with gas-gas heat exchanger 2-2.Temperature into the waste gas from incinerator of gas-gas heat exchanger 2-2 is 100 DEG C, and outflow gas gas changes
The temperature of the waste gas from incinerator of hot device 2-2 is 40 DEG C, and the temperature into the air of gas-gas heat exchanger 2-2 is about 0 DEG C, and outflow gas gas changes
The air themperature of hot device 2-2 is about 25 DEG C, and in gas-gas heat exchanger 2-2, about 60% heat is transferred to air from waste gas from incinerator
In.Heat utilization rate is set to be increased to 89% from 73% after increasing setting gas-gas heat exchanger 2-2.
Compared with the technical solution for using rotary accumulation of heat incinerator in the prior art, the printing organic waste of the utility model
Gas harmless treatment and energy recycling system use three bed accumulation of heat incinerators, can save maintenance time 80%, save maintenance
Cost 85%, single restarting can save extra fuel 75%.
Compared with the technical solution of not set water tank in the prior art, the printing organic exhaust gas of the utility model is innoxious
It is provided with water tank 3 in processing and energy recycling system, keeps whole system operation more stable, preferably has adjusted heat generation
When with the difference of consumption, heat yield and the unmatched contradiction of demand make heat utilization rate improve 20 percentage points.
Embodiment 2
Printing organic exhaust gas is carried out using printing organic exhaust gas harmless treatment as shown in Figure 2 and energy recycling system
Processing, accumulation of heat incinerator 1 select three bed accumulation of heat incinerators, and water tank 3 is the stainless steel water tank with insulating layer.
The first water pump 4-1 and the second water pump 4-2, the first water pump 4-1 is provided at the first water outlet 3-1 of water tank
It operates normally, the second water pump 4-2 can start at any time as backup.When the first water pump 4-1 failure, unexpected stop liquid is defeated
When sending, the second water pump 4-2 as backup starts, and keeps the normal circulation of water in the first air-water heat exchanger 2-1, and heat is timely
It takes out of, prevents thermal accumlation in the first air-water heat exchanger 2-1, aqueous vapor is made to turn to vapor, cause the first air-water heat exchanger 2-1 quick-fried
It splits, improves the safety coefficient and reliability of system.
Concentration into the printing organic exhaust gas of accumulation of heat incinerator 1 is about 6040mg/Nm3, the gas outlet of accumulation of heat incinerator 1
The waste gas from incinerator temperature of 1-2 is 351 DEG C, and the temperature into the water of the first air-water heat exchanger 2-1 is 71 DEG C, and the first air water of outflow changes
The temperature of the water of hot device 2-1 is 94 DEG C, and the temperature for flowing out the exhaust gas of the first air-water heat exchanger 2-1 is 102 DEG C, is changed in the first air water
In hot device 2-1, about 74% heat is transferred in water from waste gas from incinerator.
The temperature of the water flowed out from the second water outlet 3-3 of water tank 3 is 91 DEG C, from the second air water of drying unit 6-1
The temperature of the water of the water outlet outflow of heat exchanger 6-1-1 is 72 DEG C, and drying unit 6-1 is obtained from the second air-water heat exchanger 6-1-1
To energy account for its always consume energy 65%, therefore using the utility model the harmless treatment of printing organic exhaust gas and energy regenerating
System can save 65% energy consumption of drying unit 6-1.
Compared with the technical solution of the prior art, the printing organic exhaust gas harmless treatment of the utility model and energy regenerating
System is also provided with gas-gas heat exchanger 2-2.Temperature into the waste gas from incinerator of gas-gas heat exchanger 2-2 is 100 DEG C, and outflow gas gas changes
The temperature of the waste gas from incinerator of hot device 2-2 is 40 DEG C, and the temperature into the air of gas-gas heat exchanger 2-2 is about 0 DEG C, and outflow gas gas changes
The air themperature of hot device 2-2 is about 25 DEG C, and in gas-gas heat exchanger 2-2, about 60% heat is transferred to air from waste gas from incinerator
In.Heat utilization rate is set to be increased to 91% from 74% after increasing setting gas-gas heat exchanger 2-2.
Compared with the technical solution for using rotary accumulation of heat incinerator in the prior art, the printing organic waste of the utility model
Gas harmless treatment and energy recycling system use three bed accumulation of heat incinerators, can save maintenance time 80%, save maintenance
Cost 85%, single restarting can save extra fuel 75%.
Compared with the technical solution of not set water tank in the prior art, the printing organic exhaust gas of the utility model is innoxious
It is provided with the water tank 3 with insulating layer in processing and energy recycling system, keeps whole system operation more stable, preferably adjusts
When heat generates the difference with consumption, heat yield and demand unmatched contradiction, while reducing the heat of water tank 3
Loss, makes heat utilization rate improve 22 percentage points.
Embodiment 3
Printing organic exhaust gas is carried out using printing organic exhaust gas harmless treatment as shown in Figure 2 and energy recycling system
Processing, accumulation of heat incinerator 1 select three bed accumulation of heat incinerators, and water tank 3 is the stainless steel water tank with insulating layer, heat exchange unit
2 use the connection type of counterflow heat exchange as shown in Figure 3.
The first water pump 4-1 and the second water pump 4-2, the first water pump 4-1 is provided at the first water outlet 3-1 of water tank
It operates normally, the second water pump 4-2 can start at any time as backup.When the first water pump 4-1 failure, unexpected stop liquid is defeated
When sending, the second water pump 4-2 as backup starts, and keeps the normal circulation of water in the first air-water heat exchanger 2-1, and heat is timely
It takes out of, prevents thermal accumlation in the first air-water heat exchanger 2-1, aqueous vapor is made to turn to vapor, cause the first air-water heat exchanger 2-1 quick-fried
It splits, improves the safety coefficient and reliability of system.
Concentration into the printing organic exhaust gas of accumulation of heat incinerator 1 is about 6100mg/Nm3, the gas outlet of accumulation of heat incinerator 1
The waste gas from incinerator temperature of 1-2 is 360 DEG C, and the temperature into the water of the first air-water heat exchanger 2-1 is 68 DEG C, and the first air water of outflow changes
The temperature of the water of hot device 2-1 is 93 DEG C, and the temperature for flowing out the exhaust gas of the first air-water heat exchanger 2-1 is 92 DEG C, is changed in the first air water
In hot device 2-1, about 79% heat is transferred in water from waste gas from incinerator.
The temperature of the water flowed out from the second water outlet 3-3 of water tank 3 is 90 DEG C, from the second air water of drying unit 6-1
The temperature of the water of the water outlet outflow of heat exchanger 6-1-1 is 68 DEG C, and drying unit 6-1 is obtained from the second air-water heat exchanger 6-1-1
To energy account for its always consume energy 66%, therefore using the utility model the harmless treatment of printing organic exhaust gas and energy regenerating
System can save 66% energy consumption of drying unit 6-1.
Compared with the technical solution of the prior art, the printing organic exhaust gas harmless treatment of the utility model and energy regenerating
System is also provided with gas-gas heat exchanger 2-2.Temperature into the waste gas from incinerator of gas-gas heat exchanger 2-2 is 92 DEG C, and outflow gas gas changes
The temperature of the waste gas from incinerator of hot device 2-2 is 30 DEG C, and the temperature into the air of gas-gas heat exchanger 2-2 is about 0 DEG C, and outflow gas gas changes
The air themperature of hot device 2-2 is about 27 DEG C, and in gas-gas heat exchanger 2-2, about 64% heat is transferred to air from waste gas from incinerator
In.Heat utilization rate is set to be increased to 92% from 79% after increasing setting gas-gas heat exchanger 2-2.
Compared with the technical solution for using rotary accumulation of heat incinerator in the prior art, the printing organic waste of the utility model
Gas harmless treatment and energy recycling system use three bed accumulation of heat incinerators, can save maintenance time 80%, save maintenance
Cost 85%, single restarting can save extra fuel 75%.
Compared with the technical solution of not set water tank in the prior art, the printing organic exhaust gas of the utility model is innoxious
It is provided with the water tank 3 with insulating layer in processing and energy recycling system, keeps whole system operation more stable, preferably adjusts
When heat generates the difference with consumption, heat yield and demand unmatched contradiction, while reducing the heat of water tank 3
Loss, makes heat utilization rate improve 23 percentage points.
Embodiment 4
Printing organic exhaust gas is carried out using printing organic exhaust gas harmless treatment as shown in Figure 2 and energy recycling system
Processing, accumulation of heat incinerator 1 select three bed accumulation of heat incinerators, and water tank 3 is the stainless steel water tank with insulating layer, water tank 3
According to as shown in Figure 4 increase partition 3-5, and according to carrying out relevant connection shown in Fig. 4.
The first water pump 4-1 and the second water pump 4-2, the first water pump 4-1 is provided at the first water outlet 3-1 of water tank
It operates normally, the second water pump 4-2 can start at any time as backup.When the first water pump 4-1 failure, unexpected stop liquid is defeated
When sending, the second water pump 4-2 as backup starts, and keeps the normal circulation of water in the first air-water heat exchanger 2-1, and heat is timely
It takes out of, prevents thermal accumlation in the first air-water heat exchanger 2-1, aqueous vapor is made to turn to vapor, cause the first air-water heat exchanger 2-1 quick-fried
It splits, improves the safety coefficient and reliability of system.
Concentration into the printing organic exhaust gas of accumulation of heat incinerator 1 is about 6040mg/Nm3, the gas outlet of accumulation of heat incinerator 1
The waste gas from incinerator temperature of 1-2 is 351 DEG C, and the temperature into the water of the first air-water heat exchanger 2-1 is 68 DEG C, and the first air water of outflow changes
The temperature of the water of hot device 2-1 is 95 DEG C, and the temperature for flowing out the exhaust gas of the first air-water heat exchanger 2-1 is 101 DEG C, is changed in the first air water
In hot device 2-1, about 76% heat is transferred in water from waste gas from incinerator.
It after increasing partition 3-5 in water tank 3, prevents high-temperature water from mixing in water tank 3 with water at low temperature, makes the of water tank
The temperature difference of second water outlet 3-3 of one water outlet 3-1 and water tank is increased to 26 DEG C by 20 DEG C, while improving heat exchange unit 2
The first air-water heat exchanger 2-1 and print system 6 the second air-water heat exchanger 6-1-1 rate of heat transfer, increase the heat of system
Utilization rate.
The temperature of the water flowed out from the second water outlet 3-3 of water tank 3 is 94 DEG C, from the second air water of drying unit 6-1
The temperature of the water of the water outlet outflow of heat exchanger 6-1-1 is 68 DEG C, and drying unit 6-1 is obtained from the second air-water heat exchanger 6-1-1
To energy account for its always consume energy 69%, therefore using the utility model the harmless treatment of printing organic exhaust gas and energy regenerating
System can save 69% energy consumption of drying unit 6-1.
Compared with the technical solution of the prior art, the printing organic exhaust gas harmless treatment of the utility model and energy regenerating
System is also provided with gas-gas heat exchanger 2-2.Temperature into the waste gas from incinerator of gas-gas heat exchanger 2-2 is 101 DEG C, and outflow gas gas changes
The temperature of the waste gas from incinerator of hot device 2-2 is 38 DEG C, and the temperature into the air of gas-gas heat exchanger 2-2 is about 0 DEG C, and outflow gas gas changes
The air themperature of hot device 2-2 is about 26 DEG C, and in gas-gas heat exchanger 2-2, about 63% heat is transferred to air from waste gas from incinerator
In.Heat utilization rate is set to be increased to 90% from 76% after increasing setting gas-gas heat exchanger 2-2.
Compared with the technical solution for using rotary accumulation of heat incinerator in the prior art, the printing organic waste of the utility model
Gas harmless treatment and energy recycling system use three bed accumulation of heat incinerators, can save maintenance time 80%, save maintenance
Cost 85%, single restarting can save extra fuel 75%.
Compared with the technical solution of not set water tank in the prior art, the printing organic exhaust gas of the utility model is innoxious
It is provided with the water tank 3 with insulating layer in processing and energy recycling system, keeps whole system operation more stable, preferably adjusts
When heat generates the difference with consumption, heat yield and demand unmatched contradiction, while reducing the heat of water tank 3
Loss, makes heat utilization rate improve 23 percentage points.
Claims (7)
1. a kind of printing organic exhaust gas harmless treatment and energy recycling system, which is characterized in that including print system (6), store
Thermal incinerator (1), heat exchange unit (2), water tank (3), the first water pump (4-1)；
The print system (6) includes drying unit (6-1), and drying unit (6-1) includes the second air-water heat exchanger (6-1-1)；
The accumulation of heat incinerator (1) includes three bed accumulation of heat incinerators；
The heat exchange unit (2) includes the first air-water heat exchanger (2-1) and gas-gas heat exchanger (2-2)；
The water tank (3) is provided with the first water outlet (3-1), the first water inlet (3-2), the second water outlet (3-3) and second
Water inlet (3-4)；
The organic exhaust gas outlet (6-2) of the print system (6) is connect with the air inlet (1-1) of accumulation of heat incinerator (1), and accumulation of heat is burnt
The gas outlet (1-2) for burning furnace (1) is disposed with the first air-water heat exchanger (2-1) and gas-gas heat exchanger (2-2), water tank (3)
The first water outlet (3-1) connect with the water inlet of the first air-water heat exchanger (2-1), the water inlet of the first air-water heat exchanger (2-1)
It is provided with the first water pump (4-1) between mouth and the first water outlet (3-1) of water tank (3), the first air-water heat exchanger (2-1) goes out
The mouth of a river is connect with the first water inlet (3-2) of water tank (3), the second water outlet (3-3) and drying unit (6- of water tank (3)
1) the water inlet connection of the second air-water heat exchanger (6-1-1), the second water outlet (3-3) and drying unit (6- of water tank (3) in
1) third water pump (4-3) is provided between the water inlet of the second air-water heat exchanger (6-1-1) in, second in drying unit (6-1)
The water outlet of air-water heat exchanger (6-1-1) is connect with the second water inlet (3-4) of water tank (3).
2. a kind of printing organic exhaust gas harmless treatment and energy recycling system according to claim 1, which is characterized in that institute
It states and is provided with partition (3-5) in water tank (3), the inside of water tank (3) is divided into two parts, partition (3- by the partition (3-5)
5) bottom surface of lower end and water tank (3) and side are tightly connected, the upper end of partition (3-5) and the upper bottom surface of water tank (3)
Between have gap.
3. a kind of printing organic exhaust gas harmless treatment and energy recycling system according to claim 2, which is characterized in that institute
It states partition (3-5) and is provided with insulating layer.
4. a kind of printing organic exhaust gas harmless treatment and energy recycling system according to claim 1, which is characterized in that institute
The surface for stating water tank (3) is provided with insulating layer.
5. a kind of printing organic exhaust gas harmless treatment and energy recycling system according to claim 1, which is characterized in that
Second water pump is added again between the water inlet of first air-water heat exchanger (2-1) and the first water outlet (3-1) of water tank (3)
(4-2), and be arranged in parallel with original first water pump (4-1).
6. a kind of printing organic exhaust gas harmless treatment and energy recycling system according to claim 1, which is characterized in that institute
It states and is additionally provided with air inducing between the organic exhaust gas outlet (6-2) of print system (6) and the air inlet (1-1) of accumulation of heat incinerator (1)
Machine (5).
7. a kind of printing organic exhaust gas harmless treatment and energy recycling system according to claim 1, which is characterized in that gas
Gas heat exchanger (2-2) is also connected with heating blower (7) and heating unit (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822267078.6U CN209512051U (en) | 2018-12-29 | 2018-12-29 | Print organic exhaust gas harmless treatment and energy recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822267078.6U CN209512051U (en) | 2018-12-29 | 2018-12-29 | Print organic exhaust gas harmless treatment and energy recycling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209512051U true CN209512051U (en) | 2019-10-18 |
Family
ID=68198866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822267078.6U Active CN209512051U (en) | 2018-12-29 | 2018-12-29 | Print organic exhaust gas harmless treatment and energy recycling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209512051U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939940A (en) * | 2019-12-09 | 2020-03-31 | 上海兰宝环保科技有限公司 | Waste gas purification and waste heat recovery method and device thereof |
-
2018
- 2018-12-29 CN CN201822267078.6U patent/CN209512051U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939940A (en) * | 2019-12-09 | 2020-03-31 | 上海兰宝环保科技有限公司 | Waste gas purification and waste heat recovery method and device thereof |
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