CN108534282A - A kind of binary channels air exhausting device and exhaust method - Google Patents
A kind of binary channels air exhausting device and exhaust method Download PDFInfo
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- CN108534282A CN108534282A CN201810202862.0A CN201810202862A CN108534282A CN 108534282 A CN108534282 A CN 108534282A CN 201810202862 A CN201810202862 A CN 201810202862A CN 108534282 A CN108534282 A CN 108534282A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
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Abstract
The present invention provides a kind of binary channels air exhausting devices and exhaust method, air exhausting device to include：Collecting hood, blowdown branch wind pipe, heat extraction branch wind pipe, two Electric air valves, time switch timer and wind valve controller.Exhaust method includes：When pollution sources start to discharge exhaust gas, blowdown branch wind pipe is opened, and time switch timer starts timing, and wind valve controller makes heat extraction branch wind pipe Electric air valve close heat extraction branch wind pipe.After timing, wind valve controller makes blowdown branch wind pipe Electric air valve close blowdown branch wind pipe, and heat extraction branch wind pipe Electric air valve is made to open heat extraction branch wind pipe.Double duct exhaust air devices that the present invention is independently collected by the way that waste heat and exhaust gas is arranged, realize that waste heat and the independent of exhaust gas are collected, greatly reduce systematic air flow, pollutant is enable to enter cleaning equipment with higher concentration level, both the size for having reduced equipment reduces initial cost, and improves the purification efficiency of equipment, operating cost is reduced, energy saving, efficient purpose is realized.
Description
Technical field
The invention belongs to aeration technology field, it is related to a kind of binary channels air exhausting device and exhaust method.
Background technology
To collect the pollutants such as the exhaust gas generated in industrial processes, usually pollutant is carried out using ventilating system
Collection is handled, last qualified discharge.To meet power conservation requirement, should realize as much as possible low air quantity, high concentration gas sampling system
System, to provide advantage for subsequent contamination processing.But it is found through investigation, in industrial processes, under only a few scene
It is that single pollution sources are stable, constantly distributes, is rendered as multiple pollution sources intermittences mostly and distributes.In addition, can be held at pollution sources
Generate a large amount of waste heat to continuous property.If these waste heat are discharged not in time, totally unfavorable influence can be caused to workshop condition.So
The design of workshop ventilation system will not only meet the requirement for collecting exhaust gas, while also need to take away a large amount of waste heat.
To meet the air-conditioning requirement of heat extraction blowdown, Industrial-Enterprises in China is generally collected and is discharged using the continuous air inducing of Wind Volume
Pattern.The exhaust air rate for thereby resulting in ventilating system is huge and the collection concentration of pollutant is very low, and the consequence brought is exactly wind
Machine high energy consumption, cleaning equipment initial cost is high and operational efficiency is low, operating cost is high, enable many enterprises can't bear the heavy load.
Invention content
In view of the deficiencies of the prior art, its purpose is to provide a kind of binary channels air exhausting devices, can drop by the present invention
The concentration of gas sampling pollutant is improved under the premise of low fan energy consumption.
It is another object of the present invention to provide a kind of binary channels exhaust methods for above-mentioned binary channels air exhausting device.
In order to achieve the above objectives, solution of the invention is：
A kind of binary channels air exhausting device comprising：Collecting hood, blowdown branch wind pipe, blowdown branch wind pipe Electric air valve, heat extraction branch
Air hose, heat extraction branch wind pipe Electric air valve, time switch timer, wind valve controller.
Wherein, two exhaust outlets are set at the top of collecting hood, are connect respectively with blowdown branch wind pipe and heat extraction branch wind pipe, are collected useless
The waste heat that the exhaust gas and waste heat pollution sources of gas pollution sources interval discharge are persistently discharged；
Blowdown branch wind pipe is used to discharge the exhaust gas of exhaust emission source interval discharge.Blowdown branch wind pipe Electric air valve control of sewage disposal
The on and off of branch wind pipe opens blowdown branch wind pipe when exhaust emission source starts to discharge exhaust gas.It is dirty that heat extraction branch wind pipe discharges waste heat
The waste heat that dye source is persistently discharged.Heat extraction branch wind pipe Electric air valve controls the on and off of heat extraction branch wind pipe.Time switch timer exists
Exhaust emission source starts to start timing when discharging exhaust gas.Wind valve controller is for controlling heat extraction branch wind pipe Electric air valve and heat extraction branch
The action of air hose Electric air valve closes heat extraction branch wind pipe Electric air valve when blowdown branch wind pipe Electric air valve opens blowdown branch wind pipe
Close heat extraction branch wind pipe；Blowdown branch wind pipe Electric air valve is set to close blowdown branch wind pipe after time control switch timer timing, and
Heat extraction branch wind pipe Electric air valve is set to open heat extraction branch wind pipe.The timing time of time switch timer is greater than or equal to exhaust gas most
1.5 times of long continued emissions time.
A kind of binary channels exhaust system, it is characterised in that：Including：At least one binary channels air exhausting device, gas sampling master
Air hose, waste gas purification apparatus, gas sampling frequency conversion fan, waste heat collect main air hose, waste heat collection frequency conversion fan.
Wherein, the main air hose of gas sampling is connected with the blowdown branch wind pipe of at least one binary channels air exhausting device.Exhaust gas is net
Makeup is set for purifying the exhaust gas passed through in the main air hose of gas sampling.Gas sampling is with frequency conversion fan variable frequency adjustment gas sampling master
Air-out flow in air hose.Waste heat collects main air hose and is connected with the heat extraction branch wind pipe of at least one binary channels air exhausting device.It is useless
The air-out flow of main air hose is collected in hot collection with frequency conversion fan for variable frequency adjustment institute waste heat.
A kind of binary channels exhaust method comprising following steps：
(1), waste heat pollution sources continued emissions waste heat, exhaust emission source intermittent discharge exhaust gas.
(2), when exhaust emission source, which starts discharge, needs the exhaust gas of interval discharge, blowdown branch wind pipe Electric air valve opens row
Dirty branch wind pipe, time switch timer start timing, and wind valve controller gets the open signal of blowdown branch wind pipe Electric air valve
And heat extraction branch wind pipe Electric air valve is made to close heat extraction branch wind pipe.
(3), after time control switch timer timing, exhaust emission source stops discharge exhaust gas, and wind valve controller makes row
Dirty branch wind pipe Electric air valve closes blowdown branch wind pipe, gets the shutdown signal of blowdown branch wind pipe Electric air valve and makes heat extraction branch wind
Pipe Electric air valve opens heat extraction branch wind pipe.
Wherein, the timing time of time switch timer is greater than or equal to 1.5 times of the longest continued emissions time of exhaust gas.
By adopting the above scheme, the beneficial effects of the invention are as follows：
The first, double duct exhaust air systems that a kind of industrial plant multiple devices waste heat of present invention proposition and exhaust gas are independently collected
System, for exhaust gas it is different with waste heat distribute feature, carry out fining exhaust system design, exhaust gas and waste heat separate collection handled,
The effect for reaching pollutant " i.e. production is arranged, and is not produced and is not arranged ", reduces system exhaust air rate, while the pollutant for improving gas sampling is dense
Degree reaches energy saving, efficient purpose to reduce the fan energy consumption of system and improve the purification efficiency of cleaning equipment.
The second, double duct exhaust air systems that a kind of industrial plant multiple devices waste heat and exhaust gas are independently collected shown in the present invention
In system, by the way that double duct system is arranged, waste heat and exhaust gas are separately handled, each air duct is independent variable air volume system, reduces
System total blast volume, improves the collection concentration of pollutant, to reduce the operating cost of fan energy consumption and cleaning equipment.
Double duct exhaust air systems that a kind of industrial plant multiple devices waste heat and exhaust gas are independently collected shown in third, the present invention
In system, unlatching and the machine of blowdown branch wind pipe Electric air valve link, and the closing of blowdown branch wind pipe Electric air valve passes through time switch
Timer realizes that delays time to control, air-bled time are the maximum length in time that pollution sources distribute exhaust gas under the technique, has reached pollution
The effect of object " i.e. production is arranged, and is not produced and is not arranged ", avoids the invalid air draft during non-distribute, reduces exhaust air rate and cleaning equipment
Load.
4th, double duct exhaust air systems that a kind of industrial plant multiple devices waste heat and exhaust gas are independently collected shown in the present invention
In system, the control logic of heat extraction branch wind pipe Electric air valve and blowdown branch wind pipe Electric air valve " this opens that pass " realizes collecting hood row
The conversion of heat and gas sampling, and ensure that the mutual indepedent of two air ducts, it is the key that realize that waste heat and exhaust gas are independently collected.
Description of the drawings
Fig. 1 is the structural schematic diagram of the binary channels air exhausting device of the present invention.
Fig. 2 is the flow chart of the binary channels exhaust method of the present invention.
Fig. 3 is the structural schematic diagram of the binary channels exhaust system of the present invention.
Fig. 4 is structural schematic diagram of the present invention for double duct exhaust air systems of curing department.
Reference numeral：
The main air hose 1 of gas sampling, waste heat are collected main air hose 2, collecting hood 3, gas sampling frequency conversion fan 4, waste heat and are collected
It is fixed with frequency conversion fan 5, waste gas purification apparatus 6, blowdown branch wind pipe Electric air valve 7, heat extraction branch wind pipe Electric air valve 8, time switch
When device 9, wind valve controller 10, blowdown branch wind pipe 11, heat extraction branch wind pipe 12.
Specific implementation mode
Mentioned above in order to solve the problems, such as, the present invention is provided with double duct system, including the main air hose of gas sampling 1 and useless
Heat collects main air hose 2.Each air duct is an independent system, respectively the power source with there are one, using two frequency conversion fans 4 and 5
Carry out VAV control.The main air hose 1 of gas sampling and waste heat collect main air hose 2 and pass through corresponding branch wind pipe and collecting hood 3 respectively
Connection.The main air hose 1 of gas sampling is connected to gas sampling frequency conversion fan 4 after waste gas purification apparatus 6, and waste heat collects main air hose
2 are connected to waste heat collection frequency conversion fan 5.
Double duct system collects the receipts that main air hose 2 undertakes exhaust gas and waste heat respectively by the main air hose 1 of gas sampling and waste heat
Collect work.Waste heat is collected the size of main air hose 2 and is determined according to Maximum Ventilatory Volume needed for discharge waste heat, the main air hose of gas sampling 1
Size calculates required maximum exhaust air rate according to pollution sources emission characteristics and determines.Frequency conversion fan 4,5 is to use frequency control, for
Each air duct can be considered an independent variable air volume system.
The top of each collecting hood 3 is all provided with two exhaust outlets, is respectively connected to corresponding main air hose by branch wind pipe, respectively
Undertake the work of heat extraction and blowdown.Waste heat exhaust outlet should be positioned as close to heat source, and exhaust vent should be positioned as close to dirt
Dye source.The size of exhaust outlet and branch pipe should be calculated according to actual process demand.
One Electric air valve is installed, i.e. heat extraction branch wind pipe Electric air valve 8 and blowdown branch wind pipe is electronic on every branch wind pipe
The keying relationship of air-valve 7, two air-valves " this opens that pass " is controlled by wind valve controller 10.Blowdown branch wind pipe Electric air valve 7
The unlatching in unlatching and exhaust emission source link, the closing of blowdown branch wind pipe Electric air valve 7 uses delays time to control, the delays time to control
It is realized by time switch timer 9.Determine that pollution sources distribute exhaust gas under the technique according to experiment test or operating experience
Maximum length in time, and in this, as the time setting value of time switch timer 9, with control of sewage disposal branch wind pipe Electric air valve 7
Opening time, avoid it is non-distribute during invalid air draft.
Wind valve controller 10 controls the electronic wind of heat extraction branch wind pipe by obtaining the keying signal of blowdown branch wind pipe Electric air valve 7
The keying of valve 8, control logic are：Heat extraction branch wind pipe Electric air valve 8 and blowdown branch wind pipe Electric air valve 7 cannot be opened simultaneously.
When pollution sources distribute exhaust gas, blowdown branch wind pipe Electric air valve 7 and pollution sources united opening, 8 phase of heat extraction branch wind pipe Electric air valve
It should close, in case exhaust gas is leaked through heat extraction branch wind pipe.Exhaust gas is distributed in pollution sources stopping, when only waste heat generates, time switch
Timer 9 stops timing, and blowdown branch wind pipe Electric air valve 7 is closed under the action of wind valve controller 10, and heat extraction branch wind pipe is electronic
Air-valve 8 is accordingly opened, to ensure that the air quantity for flowing through cleaning equipment is minimum.
The binary channels air exhausting device, binary channels exhaust system and binary channels exhaust method of the present invention are made below in conjunction with attached drawing
Further instruction.
<Binary channels air exhausting device>
As shown in Figure 1, the present invention provides a kind of binary channels air exhausting devices used in curing department comprising：It collects
Cover 3, blowdown branch wind pipe 11, blowdown branch wind pipe Electric air valve 7, heat extraction branch wind pipe 12, heat extraction branch wind pipe Electric air valve 8, time control are opened
Close timer 9 and wind valve controller 10.
Blowdown branch wind pipe 11 is set to the top of collecting hood 3, the exhaust gas for discharging the interval discharge of exhaust emission source.
Blowdown branch wind pipe Electric air valve 7 is set on blowdown branch wind pipe 11, is used for the on or off of control of sewage disposal branch wind pipe 11.When
When exhaust emission source starts to discharge exhaust gas, blowdown branch wind pipe Electric air valve 7 opens simultaneously blowdown branch wind pipe 11.
Heat extraction branch wind pipe 12 is also set to the top of collecting hood 3, and independently of blowdown branch wind pipe 11, for discharging waste heat dirt
The waste heat that dye source is persistently discharged.
Heat extraction branch wind pipe Electric air valve 8 is set on heat extraction branch wind pipe 12, the on or off for controlling heat extraction branch wind pipe 12.Row
It is opened when dirty branch wind pipe 11 and different heat extraction branch wind pipe 12.When blowdown branch wind pipe 11 is opened, heat extraction branch wind pipe 12 is closed.Work as row
When dirty branch wind pipe 11 is closed, heat extraction branch wind pipe 12 is opened.
Time switch timer 9 is connect with 7 signal of blowdown branch wind pipe Electric air valve, starts to discharge exhaust gas in exhaust emission source
When start timing, timing end signal is generated after timing, wind valve controller 10 makes row after receiving timing end signal
Dirty branch wind pipe Electric air valve 7 closes blowdown branch wind pipe 11.The timing time T of time switch timerpMore than or equal to exhaust gas
Longest continued emissions time Tm1.5 times, i.e.,：Tp≥1.5Tm。TmFor according to the work determined by experiment test or operating experience
Pollution sources distribute the maximum length in time of exhaust gas under skill.Because exhaust gas is intermittent discharge, after timing, exhaust gas must be arranged
It discharges complete.For example, the curing department can be half steel type curing departments of PCR, the maximum length in time of exhaust emissions can be
The timing time of 4min, time switch timer can be 6min.
Wind valve controller 10 is connect with blowdown branch wind pipe Electric air valve 7 and 8 equal signal of heat extraction branch wind pipe Electric air valve.Air-valve
The control logic of controller 10 is to determine heat extraction branch wind according to the open signal of blowdown branch wind pipe Electric air valve 7 or shutdown signal
Whether pipe Electric air valve 8 turns off or on heat extraction branch wind pipe 12, it is ensured that opens blowdown branch wind pipe in blowdown branch wind pipe Electric air valve 7
When 11, heat extraction branch wind pipe Electric air valve 8 closes heat extraction branch wind pipe 12；Blowdown branch wind pipe Electric air valve 7 closes blowdown branch wind pipe 11
When, heat extraction branch wind pipe Electric air valve 8 could open heat extraction branch wind pipe 12, to ensure the mutual indepedent of double air ducts.Specifically,
When blowdown branch wind pipe Electric air valve 7 opens blowdown branch wind pipe 11, wind valve controller 10 gets blowdown branch wind pipe Electric air valve 7
Open signal, and heat extraction branch wind pipe Electric air valve 8 is made to close heat extraction branch wind pipe 12.When blowdown branch wind pipe Electric air valve 7 is closed
When blowdown branch wind pipe 11, wind valve controller 10 gets the shutdown signal of blowdown branch wind pipe Electric air valve 7, and makes heat extraction branch wind pipe
Electric air valve 8 opens heat extraction branch wind pipe 12.It is achieved in not opening simultaneously for blowdown branch wind pipe 11 and heat extraction branch wind pipe 12.
<Binary channels exhaust method>
As depicted in figs. 1 and 2, the present invention provides a kind of binary channels exhaust methods, are directed to waste heat pollution sources and exhaust gas
Not the case where pollution sources are not same pollution sources comprising following steps：
1, waste heat pollution sources continued emissions waste heat, exhaust emission source intermittent discharge exhaust gas.
2, when exhaust emission source starts to discharge exhaust gas, blowdown branch wind pipe Electric air valve 7 opens blowdown branch wind pipe 11, time control
Switch timer 9 starts timing, and wind valve controller 10 gets the open signal of blowdown branch wind pipe Electric air valve 7 and makes heat extraction branch
Air hose Electric air valve 8 closes heat extraction branch wind pipe 12.At this point, blowdown branch wind pipe 11 and heat extraction branch wind pipe 12 do not open simultaneously.
3, when 9 timing of time switch timer is not over, blowdown branch wind pipe Electric air valve 7 makes blowdown branch wind pipe 11 hold
It is continuous to maintain opening state, and wind valve controller 10 persistently gets the open signal of blowdown branch wind pipe Electric air valve 7 and makes
Heat extraction branch wind pipe Electric air valve 8 maintains heat extraction branch wind pipe 12 in off position.
4, after 9 timing of time control switch timer, exhaust emission source stops discharge exhaust gas, time switch timer 9
Timing end signal is generated, wind valve controller 10 makes blowdown branch wind pipe Electric air valve 7 close row after receiving timing end signal
Dirty branch wind pipe 11, wind valve controller 10 get the shutdown signal of blowdown branch wind pipe Electric air valve 7 and keep heat extraction branch wind pipe electronic
Air-valve 8 opens heat extraction branch wind pipe 12.At this point, blowdown branch wind pipe 11 and heat extraction branch wind pipe 12 also do not open simultaneously.Then it repeats to hold
Row above-mentioned steps.
In step 3, the timing time of time switch timer 9 is greater than or equal to the longest continued emissions time of exhaust gas
1.5 again.Because exhaust gas is intermittent discharge, after timing, exhaust gas must be discharged and be finished.Blowdown branch wind pipe 11 is closed at this time
Stop discharge exhaust gas, and open simultaneously heat extraction branch wind pipe 12, continues that heat extraction branch wind pipe 12 is made to carry out heat extraction.
<Binary channels exhaust system>
As shown in figure 3, the present invention provides a kind of binary channels exhaust systems comprising：At least one binary channels air draft dress
It sets, the main air hose 1 of gas sampling, waste heat collect main air hose 2, waste gas purification apparatus 6, gas sampling frequency conversion fan 4, waste heat are collected
With frequency conversion fan 5.
Wherein, the collecting hood 3 of binary channels air exhausting device is used to collect exhaust gas and the waste heat dirt of exhaust emission source interval discharge
The waste heat that dye source is persistently discharged.The top of collecting hood 3 is set there are two gas vent, is connected to corresponding main wind by branch wind pipe respectively
Pipe.Waste heat exhaust outlet should be positioned as close to waste heat pollution sources, and exhaust vent should be positioned as close to exhaust emission source.Individually
3 heat extraction of collecting hood and the conversion of gas sampling are realized by the control of two Electric air valves.
The main air hose of gas sampling 1 is connected with the blowdown branch wind pipe 11 of at least one binary channels air exhausting device, collects this
The exhaust gas that the blowdown branch wind pipe 11 of a little binary channels air exhausting devices is discharged.
Waste gas purification apparatus 6 is set to the downstream of the main air hose of gas sampling 1, for purifying warp in the main air hose 1 of gas sampling
The exhaust gas crossed.
Gas sampling uses frequency conversion fan 4 as the air-out flow in the main air hose of power source variable frequency adjustment gas sampling 1, exhaust gas
6 purified exhaust gas of purifier is discharged to via the gas sampling frequency conversion fan 4 in environment.
Waste heat collects main air hose 2 and is connected with the heat extraction branch wind pipe 12 of at least one binary channels air exhausting device, collects this
The waste heat that the heat extraction branch wind pipe 12 of a little binary channels air exhausting devices is discharged.Two main air hoses undertake the work of heat extraction and blowdown respectively.
Waste heat collection uses frequency conversion fan 5 to collect the air-out flow of main air hose 2 as power source variable frequency adjustment institute waste heat.
The control logic of binary channels exhaust system of the present invention is：When worker starts operation, machine startup, pass through linkage
Control, blowdown branch wind pipe Electric air valve 7 open blowdown branch wind pipe 11, and collecting hood 3 starts blowdown, while time switch timer 9
Start timing, at this time under the action of wind valve controller 10, heat extraction branch wind pipe Electric air valve 8 closes heat extraction branch wind pipe 12, exhaust gas
Enter the main air hose 1 of gas sampling through blowdown branch wind pipe, is discharged after the purification of waste gas purification apparatus 6, due to the main air hose of gas sampling 1
Interior air quantity changes, and gas sampling correspondingly makes variable frequency adjustment with frequency conversion fan 4.When the blowing time for reaching setting
1.5Tm, blowdown branch wind pipe Electric air valve 7 close blowdown branch wind pipe 11, and collecting hood 3 stops blowdown, and shutdown signal reaches air-valve
Controller 10, heat extraction branch wind pipe Electric air valve 8 open heat extraction branch wind pipe 12, and collecting hood 3 starts heat extraction, and a large amount of waste heat are received through waste heat
Collect main air hose 2 and be emitted into outdoor, while waste heat collection frequency conversion fan 5 and gas sampling frequency conversion fan 4 are according to systematic air flow
Variable frequency adjustment is made in variation.When machine is again started up, heat extraction branch wind pipe Electric air valve 8 closes heat extraction branch wind pipe 12, blowdown branch
Air hose Electric air valve 7 opens blowdown branch wind pipe 11, repeats the above steps later.
Embodiment
The present invention is especially suitable for the occasion for having exhaust gas intermittent discharge, waste heat continued emissions feature in industrial processes,
Such as vulcanization, aluminium electroloysis.Now using curing department as object, the present invention is described in further detail.
Vulcanization is that sizing material is become elastic composites by molding tire base under regular hour, temperature and pressure, is obtained
The technical process of performance.Rubber raw materials become green tire through processes such as rolled-to-death rubber, extruding.It needs in the process into rubber
Add the chemicals such as processing oil, adhesive.These chemicals evaporate in sulfidation, become curing fume, are vulcanizations
The main source of workshop pollutant.Since pollution is to be distributed with exposing for tire, and tyre vulcanization needs certain vulcanization
Time, so it is interval that pollution, which distributes,；Entire sulfidation needs hot environment, is persistently generated with a large amount of waste heat.
As shown in figure 4, Fig. 4 is structural schematic diagram of the present invention for double duct exhaust air systems of curing department.Double wind
Road exhaust system includes that 1, waste heat of the main air hose of a gas sampling collects the main collecting hood 3, one of air hose 2,14 exhaust gas
Collecting to be collected with 4, waste heat of frequency conversion fan uses the blow down branch of waste gas purification apparatus 6,14 of frequency conversion fan 5, one electronic
9,14 wind valve controllers 10 of time switch timer of heat extraction branch pipe Electric air valve 8,14 of air-valve 7,14 etc..
The main air hose 1 of gas sampling is connected to gas sampling frequency conversion fan 4 after waste gas purification apparatus 6, and waste heat collects master
Air hose 2 is connected to waste heat collection frequency conversion fan 5.Setting 14 branch wind pipes in interval on each main air hose, successively with 14
Collecting hood 3 connects, and an Electric air valve is respectively installed on each branch pipe, and wherein blow down branch Electric air valve 7 joins with corresponding machine
It is dynamic to open, it closes and is controlled by time switch timer 9, the keying of heat extraction branch pipe Electric air valve 8 is controlled by wind valve controller 10.
Exhaust gas and useless thermal property are generated according to Vulcanization Process of Rubber, determines that 3 blowdown air quantity of collecting hood is 4000m3/ h, row
Hot blast rate is 2000m3/h；Exhaust gas longest continues generation time TmFor 4min, safety factor is considered, determine and continue blowing time Tp
For 6min；Total cycle time is 14min.As shown in figure 3, being directed to curing department, the control logic of system is：When vulcanizer is opened
Mould, when tire is exposed in air, pollutant starts to distribute, by the die sinking action linkage blow down branch Electric air valve 7 of vulcanizer
Unlatching, collecting hood 3 start collect curing fume, while time switch timer 9 start timing, at this time in wind valve controller 10
Under the action of, heat extraction branch pipe Electric air valve 8 is closed, and exhaust gas enters the main air hose 1 of gas sampling through blow down branch, through net
Change after equipment 6 purifies and discharges；I.e. when the blowing time for reaching setting after 6min, blow down branch Electric air valve 7 is closed, collecting hood 3
Stop blowdown, shutdown signal reaches wind valve controller 10, and heat extraction branch pipe Electric air valve 8 is opened, and collecting hood 3 starts heat extraction, greatly
Amount waste heat collects main air hose 2 through waste heat and is emitted into outdoor；8min after cure machines mold again, and heat extraction branch pipe Electric air valve 8 is closed,
Blow down branch Electric air valve 7 is opened, and is repeated the above steps.
Under this scheme, it is calculated in a cycle (14min), total exhaust air rate of system is 9333m3, wherein purifying
The processing air quantity of equipment is 5600m3.According to traditional scheme, i.e., the pattern that the continuous air inducing of Wind Volume is collected and discharged, each
The exhaust air rate of collecting hood is not less than 4000m3/ h is calculated in a cycle (14min), and total exhaust air rate of system is
13067m3, the processing air quantity of cleaning equipment is similarly 13067m3.Thus it obtains, compared to traditional scheme, the present invention program can be with
The 28.6% of total exhaust air rate is reduced, reduces the 57.1% of cleaning equipment processing air quantity, energy-saving effect is notable, has very high practicality
Value.
In short, compared with prior art, double duct exhaust air systems that the present invention is independently collected by the way that waste heat and exhaust gas is arranged,
It realizes that waste heat and the independent of exhaust gas are collected, greatly reduces systematic air flow so that pollutant can be entered with higher concentration level
Cleaning equipment had both reduced the size of equipment, reduced initial cost, and improved the purification efficiency of equipment, reduced running cost
With realizing energy saving, efficient purpose.
This hair can be understood and used the above description of the embodiments is intended to facilitate those skilled in the art
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiment without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments,
Those skilled in the art's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be in this hairs
Within bright protection domain.
Claims (5)
1. a kind of binary channels air exhausting device, it is characterised in that：It includes：
Blowdown branch wind pipe, the exhaust gas of discharge exhaust emission source interval discharge；
Blowdown branch wind pipe Electric air valve controls the switch of the blowdown branch wind pipe, when the exhaust emission source starts to discharge exhaust gas
When open the blowdown branch wind pipe；
Heat extraction branch wind pipe, the waste heat that discharge waste heat pollution sources are persistently discharged；
Heat extraction branch wind pipe Electric air valve controls the switch of the heat extraction branch wind pipe；
Collecting hood, top set two exhaust outlets, are connect respectively with the blowdown branch wind pipe and the heat extraction branch wind pipe, described in collection
Exhaust gas and the waste heat；
Time switch timer starts timing when the exhaust emission source starts discharge exhaust gas；And
Wind valve controller makes the heat extraction branch wind pipe electricity when the blowdown branch wind pipe Electric air valve opens the blowdown branch wind pipe
Dynamic air-valve closes the heat extraction branch wind pipe；Make the blowdown branch wind pipe electronic wind after time switch timer timing
Valve closes the blowdown branch wind pipe, and the heat extraction branch wind pipe Electric air valve is made to open the heat extraction branch wind pipe.
2. binary channels air exhausting device according to claim 1, it is characterised in that：When the timing of the time switch timer
Between be greater than or equal to 1.5 times of the longest continued emissions time of the exhaust gas.
3. a kind of binary channels exhaust system, it is characterised in that：Including：
At least one binary channels air exhausting device, the binary channels air exhausting device fill for binary channels air draft as claimed in claim 1 or 2
It sets；
The main air hose of gas sampling is connected with the blowdown branch wind pipe of at least one binary channels air exhausting device；
Waste gas purification apparatus purifies the exhaust gas passed through in the main air hose of the gas sampling；
Gas sampling frequency conversion fan, the air-out flow in the main air hose of gas sampling described in variable frequency adjustment；
Waste heat collects main air hose, is connected with the heat extraction branch wind pipe of at least one binary channels air exhausting device；
Waste heat collection frequency conversion fan, variable frequency adjustment institute waste heat collect the air-out flow of main air hose.
4. a kind of binary channels exhaust method, it is characterised in that：Include the following steps：
Waste heat pollution sources continued emissions waste heat, exhaust emission source intermittent discharge exhaust gas；
When exhaust emission source starts to discharge exhaust gas, blowdown branch wind pipe Electric air valve opens blowdown branch wind pipe, time switch timing
Device starts timing, and wind valve controller gets the open signal of the blowdown branch wind pipe Electric air valve and keeps heat extraction branch wind pipe electronic
Air-valve closes heat extraction branch wind pipe；
After the time switch timer timing, the exhaust emission source stops discharging the exhaust gas, the air-valve control
Device processed makes the blowdown branch wind pipe Electric air valve close the blowdown branch wind pipe, gets the blowdown branch wind pipe Electric air valve
Shutdown signal simultaneously makes the heat extraction branch wind pipe Electric air valve open heat extraction branch wind pipe.
5. binary channels exhaust method according to claim 4, it is characterised in that：When the timing of the time switch timer
Between be greater than or equal to 1.5 times of the longest continued emissions time of the exhaust gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810202862.0A CN108534282B (en) | 2018-03-13 | 2018-03-13 | Double-channel air exhaust device and air exhaust method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810202862.0A CN108534282B (en) | 2018-03-13 | 2018-03-13 | Double-channel air exhaust device and air exhaust method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108534282A true CN108534282A (en) | 2018-09-14 |
| CN108534282B CN108534282B (en) | 2020-12-11 |
Family
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| CN201810202862.0A Active CN108534282B (en) | 2018-03-13 | 2018-03-13 | Double-channel air exhaust device and air exhaust method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110238985A (en) * | 2019-07-05 | 2019-09-17 | 中国化学工业桂林工程有限公司 | A kind of device applied to refining glue gas sampling |
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