CN203657542U - High-temperature gas atomization type rapid cooling system - Google Patents
High-temperature gas atomization type rapid cooling system Download PDFInfo
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- CN203657542U CN203657542U CN201320646351.0U CN201320646351U CN203657542U CN 203657542 U CN203657542 U CN 203657542U CN 201320646351 U CN201320646351 U CN 201320646351U CN 203657542 U CN203657542 U CN 203657542U
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Abstract
The utility model discloses a high-temperature gas atomization type rapid cooling system which comprises a temperature detection device I, a flow detection devices I, a temperature detection device II and a flow detection device II, a cooling tower, a PLC (Programmable Logic Controller) control system, an atomization power device and a cooling water supply device, wherein the temperature detection device I and the flow detection devices I are used in before cooling of high-temperature gas; the temperature detection device II and the flow detection devices II are used after the cooling of high-temperature gas; the cooling tower is provided with a guiding channel which is used for enabling the high-temperature gas to flow from the bottom of the cooling tower to the top of the cooler tower; an injection device which is used for injecting cooling water from all around to cool the high-temperature gas is arranged at the upper part of the cooling tower; an outlet which is sued for pumping the cooled gas is formed in the top of the cooling tower; the PLC control system is provided with a feedback control device which is used for carrying out automatic fine adjusting on the injection amount and injection time of the cooling water according to data feedback of the detection device II and flow detection device II; one ends of the atomization power device and the cooling water supply device are connected with the cooling water injection device at the upper part of the cooling tower while the other ends of the atomization power device and the cooling water supply device are communicated with the PLC control system. According to the high-temperature gas atomization type rapid cooling system, the rapid cooling of the high-temperature gas can be realized, the cooling time is decreased, the temperature area is rapidly skipped and the secondary pollution caused by direct water spraying is avoided.
Description
Technical field
The utility model relates to a kind of high-temperature gas atomization quick chilling system, belongs to environmental technology field.
background technology
Term " PLC control system " is electrical control gear, be provided with default chilling temperature controller and chilled(cooling) water supply (CWS) time controller, comprise making cold-gas temperature be greater than the chilling temperature preinstall apparatus of 100 ℃ and according to hot-gas temperature and cold-gas temperature calculate the emitted dose control device, injecting time control device of calculation element, the cooling water of the cooling water inflow of the cooling needs of atomization and the emitted dose to cooling water and injecting time carry out automatic fine tuning according to the data feedback of cooled gas temperature sniffer and flow rate detecting device feed back control system.
At present, the fields such as a lot of metallurgical and chemical industry produce high-temperature gas conventionally, need to just can discharge or recycle by cooling, and the type of cooling adopts waste heat boiler, air-cooled, water wet goods medium heat to exchange and carry out mostly.The ubiquitous weak point of these types of cooling is, the temperature of high-temperature gas is progressively cooling on the one hand, causes cooling processing flow process or equipment longer; On the other hand due to the obvious cooling gradient of temperature progressively, cause being difficult to realizing within very short time acute cooling fast, as being difficult to realize, conventional way in 2 seconds, is directly reduced to 180 ℃ from 850 ℃, skip fast 300-450 ℃ of temperature province.These are not enough brings great difficulty to technology controlling and process or environmental protection.
utility model content
For example, the high-temperature gas that contains bioxin, wherein bioxin at high temperature (as exceeding 500 ℃) decompose, if by the conventional type of cooling (as waste heat boiler), in heat exchange cooling procedure slowly, through 300-450 ℃ of temperature province, there is again back reaction and automatically synthesize bioxin, bringing serious secondary pollution to environment, is also a difficult problem of bringing bioxin to pollute after at present a lot of plastics (as medical waste) high temperature incinerations are processed.
The purpose of this utility model is to provide a kind of high-temperature gas quick chilling system, and it can realize the cooling rapidly of high-temperature gas, reduces cool time, skips fast temperature province, avoids spraying because of direct water the secondary pollution bringing.
For this reason, the utility model provides a kind of high-temperature gas atomization quick chilling system, it is characterized in that, comprising:
Hot-gas temperature sniffer and flow rate detecting device before cooling, and cooled gas temperature sniffer and flow rate detecting device;
Cooling tower, it is provided with and makes high-temperature gas from the bottom of the cooling tower guide channel mobile to top, in cooling tower bottom, temperature and flow rate detecting device are installed, be arranged with on the top of cooling tower from surrounding and spray cooling water so that high-temperature gas is carried out to cooling injection apparatus, be provided with the outlet of extracting cooled gas out on the top of cooling tower;
PLC control system, cooling front hot-gas temperature sniffer and flow rate detecting device and cooled gas temperature sniffer and flow rate detecting device are all communicated with this PLC control system;
Atomizing power device, the injection apparatus of the cooling water in the upper part of its one end and cooling tower is connected, and one end is communicated with PLC control system in addition.
Preferably, described cooling tower structure is that lower end size is little, and upper end size is large.
Preferably, be also provided with the high-temperature gas that makes the abundant all burnt of hazardous gas and/or filtration enter again cooling tower and anticipate device.
Preferably, described atomizing power device adopts compressed air source.
Preferably, described injection apparatus is provided with and guarantees fierce chemical reaction not to occur to prevent the injection restraint device of toxic and harmful with high-temperature gas.
Preferably, at least one of them is thermocouple for described cooling front hot-gas temperature sniffer and cooled gas temperature sniffer.
Preferably, at least one of them is flow sensor for described cooling front high-temperature gas flow rate detecting device and cooled gas temperature flow rate detecting device.
Preferably, described injection apparatus is provided with the water atomizing nozzle that can make the atomized water of ejection be evenly distributed on the section of cooling tower.
Preferably, described water atomizing nozzle has the compressed air cleaning apparatus for self that the fouling of preventing is stopped up.
Preferably, also comprise the blower fan for taking cooling rear gas away, it is communicated with the outlet of cooled gas; And/or described blower fan is arranged on the top of cooling tower.
The beneficial effects of the utility model comprise: can realize high-temperature gas cooling rapidly, reduce cool time, can skip fast temperature province; High-temperature gas is cooling rapidly by atomization, controls coolingly in right amount, rather than directly water spray brings secondary pollution; Shorten cooling process, minimizing equipment takes up an area space significantly.
The utility model can be applicable to the high-temperature gas that cooling waste plastics burning produces, because high-temperature gas obtains cooling rapidly at cooling tower place, skip fast the temperature province (300-450 ℃) that becomes bioxin from dynamic circuit connector; bioxin has little time automatically synthetic, thereby stop the generation of bioxin, solved the environment protection treating technical barrier of waste plastics burning.
The utility model also can be applicable to (as copper is smelted and smelting iron and steel) in nonferrous metallurgical process, produce high-temperature flue gas for the treatment of stove, can accurately control cooling rear cryogenic gas outlet temperature, thereby for follow-up environment protection treating provides precondition, cooled cryogenic gas is more easy to control by dust pelletizing system (as cyclone dust collection, bag-type dust) again, has guaranteed that process conditions put in place and device security.
Accompanying drawing explanation
Fig. 1 is according to the principle schematic of high-temperature gas atomization accelerate cooling system of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, after burning take treatment of waste plastics, the atomization quick chilling system of the high-temperature gas of generation, as embodiment, describes the utility model.
Containing plastics materials (as medical waste, with the metallic article of plastics) by after high temperature incineration, as it is bad to process means control, easily produce bioxin, its higher than more than 800 ℃ decompose, in the process of progressively cooling, (300-450 ℃) is automatically synthetic again, forms serious secondary pollution.And conventional cooling way (as cooling, air-cooled, naturally cooling in heat exchanger, waterpipe) is all longer by 300-450 ℃ of temperature province time, easily become bioxin from dynamic circuit connector, therefore bioxin treatment technology is one of key technology difficult problem restricting at present plastic products burning always.
embodiment 1: control bioxin pollution treatment system
As shown in the figure, high-temperature gas atomization quick chilling system of the present utility model comprises: high-temperature gas entrance 1, temp probe 2, gas flow probe 3, atomizer 4, temp probe 5, gas flow probe 6, PLC control system 7, apparatus for supplying cool water 8, atomizing power device (as compressed air) 9, cryogenic gas outlet 10.
The high-temperature gas that plastics materials produces after high temperature incineration is via high-temperature gas entrance 1 (as 800 ℃ of temperature), and by follow-up blower fan draft (as cryogenic gas outlet 10 blower fan below), guiding gas flows to cooling tower; High-temperature gas, by temp probe 2 and gas flow probe 3, is measured respectively temperature (as 800 ℃ of temperature) and flow (Q); By signal fast transport to PLC control system 7, taking (180 ℃ as expected of default cooled temperature into consideration, the temperature that is desired temperature probe 5 is 180 ℃), calculate and need absorbed heat by temperature difference (800-180=620 ℃) and flow Q, and every cube of water atomization gasification is steam, the heat absorbing is definite value, thereby calculates the amount of atomizing spray by PLC control system 7; Consider the correction value of actual conditions, send the amount of output and the compressed air 9 of instruction control water supply installation 8 by PLC control system 7, a certain amount of and cooling water and compressed air pressure form atomization by atomising device (as atomizer) 4 in cooling tower, thereby play cooling object fast; High-temperature gas obtains cooling (practical experience rapidly at cooling tower place, be approximately cool time about 2 seconds), (300-450 ℃ of bioxin has little time automatically synthetic to skip fast temperature province, thereby stop the generation of bioxin), when by top, by temp probe 5 and gas flow probe 6 measurement gas temperature and flow again, feed back in time PLC control system 7, and revise in time the fine setting output of apparatus for supplying cool water 8 and the amount of compressed air 9, thereby reach the object of accurate temperature controlling.Cooled gas is taken away by blower fan by cryogenic gas outlet 10.In this process, the water spraying into forms water vapour (as 180 ℃), does not produce excessive liquid water, thereby stopped the generation of secondary pollution in cooling tower bottom.
It is cooling rapidly that native system can be realized high-temperature gas, absorbed heat rapidly and reached the object of fast cooling, thereby skip fast a certain temperature province, short flow process is cooling by water atomization.It is little and do not produce the features such as secondary pollution that native system has floor space, pollutes very effectively especially to administering bioxin, automatically controls simple possible.
In nonferrous metallurgical process (as copper is smelted and smelting iron and steel), stove produces high-temperature flue gas, also can carry out cooling processing with reference to above-described embodiment 1, can accurately control cooling rear cryogenic gas outlet temperature, thereby for follow-up environment protection treating provides precondition, cooled cryogenic gas is more easy to control by dust pelletizing system (as cyclone dust collection, bag-type dust) again, has guaranteed that process conditions put in place and device security.
High-temperature gas atomization quick chilling system of the present utility model comprises: hot-gas temperature (as thermocouple) and flow rate detecting device (as gas flow flowmeter sensor), be used for measuring hot-gas temperature and flow, PLC control system, according to the cooling water inflow of hot-gas temperature and the cooling needs of default chilling temperature calculating atomization.
With the cooling tower of atomizing functions, water is sprayed into water smoke, the heat that is directly atomized into GAS ABSORPTION high-temperature gas by moisture carries out cooling.High-temperature gas flows from cooling tower bottom to top by means for guiding gas (as pipeline), and cooling tower middle and upper part is divided from surrounding and sprayed into clean cooling water, forms atomization heat absorption and carries out cooling to high-temperature gas.Just drop to rapidly preset temperature according to the default cooling cooling water inflow high-temperature gas that calculates the cooling needs of thick atomization by PLC control system, extract out from cooling tower top.The cooling water spraying into becomes water vapour (volatilizing fast by water high temperature is that steam absorbs high-temperature gas heat).
The temperature of cooling rear gas and flow are measured by arranging with cooling rear gas temperature (as thermocouple) and the flow rate detecting device (as gas flow flowmeter sensor) at cooling tower top, feed back to PLC control system.PLC control system receives feedback, in conjunction with default chilling temperature, cooling water inflow is carried out to automatic fine tuning.
Atomizing power device for example adopts compressed air.
Preferably, original high-temperature gas can first be processed (all burnt as abundant in hazardous gas), then enters cooling tower systems.
Preferably, the heat that is directly atomized into GAS ABSORPTION high-temperature gas by moisture carries out cooling, does not produce unnecessary moisture, and water yield control is just right;
Preferably, cooling tower structure is that lower end is little, and upper end is large, has enough spaces to give the space that water atomization rapid expansion is gas.
Preferably, injection flow rate and the compressed gas scale of construction are used PLC to control, with computing function automatically, accurately control water yield function and feedback fine adjustment function.
Preferably, cooling tower is with the nozzle of water atomization function, and can make atomized water be evenly distributed on the section of cooling tower.
Preferably, atomizer can have self-cleaning function (as the compressed air self-cleaning function of certain pressure), prevents the effect that fouling is stopped up.
Preferably, atomizer can be ring-type, can be also single, guarantees that end face uniform atomizing water is uniformly distributed.
Preferably, cooled gas is the gas with a certain amount of moisture, and available blower fan is taken away.
Preferably, not there is not fierce chemical reaction with high-temperature gas in cooling water, produces toxic and harmful.
Pass through the utility model, implement a kind of method that makes high-temperature gas be cooled to rapidly low temperature, to skip fast the method in the default medium temperature region between high temperature and low temperature, it is characterized in that, calculate cooling water atomization consumption according to default cooling extent (flow and temperature) and default temperature fall time, configure certain dynamic condition (as compressed air pressure), in cooling tower, form atomization by atomising device with this, make high-temperature gas within the predetermined short time (i.e. default temperature fall time), be cooled to rapidly predetermined low temperature (high temperature-default cooling extent) from high temperature at cooling tower place, skip fast default medium temperature region (as produced the temperature province of pollutant), cooled cryogenic gas is taken away by blower fan.
Particularly, described high-temperature flue gas can be furnace flue gas in nonferrous metallurgical process; Or the high-temperature gas that do not react with water such as flue gas after plastics materials (as medical waste, with the metallic article of plastics) high temperature incineration, iron and steel, chemical industry.
Particularly, pass through the utility model, implemented a kind of flue gas cooling means that bioxin pollutes of preventing and treating in plastic products burning process, it is characterized in that, make the cooling water of scheduled volume and the compressed air of predetermined pressure in cooling tower, form atomization by atomising device, make high-temperature gas in cooling tower is in the predetermined short time, be cooled to rapidly predetermined low temperature, skip fast the temperature province that produces bioxin, cooled gas is taken away by blower fan by cryogenic gas outlet.
Particularly, the described predetermined short time is 1-10 second (preferably 2-5 about second), and described high-temperature gas is at 600 ℃ or higher, and described predetermined low temperature is greater than 100 ℃ of (preferably 110-190 ℃, more preferably 180 ℃), the temperature province of skipping is fast 180-500 ℃.
Claims (10)
1. a high-temperature gas atomization quick chilling system, is characterized in that, comprising:
Hot-gas temperature sniffer and flow rate detecting device before cooling, and cooled gas temperature sniffer and flow rate detecting device;
Cooling tower, it is provided with and makes high-temperature gas from the bottom of the cooling tower guide channel mobile to top, in cooling tower bottom, temperature and flow rate detecting device are installed, be arranged with on the top of cooling tower from surrounding and spray cooling water so that high-temperature gas is carried out to cooling injection apparatus, be provided with the outlet of extracting cooled gas out on the top of cooling tower;
PLC control system, cooling front hot-gas temperature sniffer and flow rate detecting device and cooled gas temperature sniffer and flow rate detecting device are all communicated with this PLC control system;
Atomizing power device, the injection apparatus of the cooling water in the upper part of its one end and cooling tower is connected, and one end is communicated with PLC control system in addition; And
Apparatus for supplying cool water, the injection apparatus of the cooling water in the upper part of its one end and cooling tower is connected, and one end is communicated with PLC control system in addition.
2. cooling system as claimed in claim 1, is characterized in that, described cooling tower structure is that lower end size is little, and upper end size is large.
3. cooling system as claimed in claim 1, is characterized in that, is also provided with and makes the abundant all burnt of hazardous gas and/or filter the high-temperature gas that enters again cooling tower and anticipate device.
4. cooling system as claimed in claim 1, is characterized in that, described atomizing power device adopts compressed air source.
5. cooling system as claimed in claim 1, is characterized in that, described injection apparatus is provided with to be guaranteed fierce chemical reaction not to occur to prevent the injection restraint device of toxic and harmful with high-temperature gas.
6. cooling system as claimed in claim 1, is characterized in that, at least one of them is thermocouple for described hot-gas temperature sniffer before cooling and cooled gas temperature sniffer.
7. cooling system as claimed in claim 1, is characterized in that, at least one of them is flow sensor for described high-temperature gas flow rate detecting device before cooling and cooled gas temperature flow rate detecting device.
8. cooling system as claimed in claim 1, is characterized in that, described injection apparatus is provided with the water atomizing nozzle that can make the atomized water of ejection be evenly distributed on the section of cooling tower.
9. cooling system as claimed in claim 8, is characterized in that, described water atomizing nozzle has the compressed air cleaning apparatus for self that the fouling of preventing is stopped up.
10. cooling system as claimed in claim 1, is characterized in that, also comprise the blower fan for taking cooling rear gas away, it is communicated with the outlet of cooled gas; And/or described blower fan is arranged on the top of cooling tower.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320646351.0U CN203657542U (en) | 2013-10-18 | 2013-10-18 | High-temperature gas atomization type rapid cooling system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320646351.0U CN203657542U (en) | 2013-10-18 | 2013-10-18 | High-temperature gas atomization type rapid cooling system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557719A (en) * | 2013-10-18 | 2014-02-05 | 江西稀有稀土金属钨业集团有限公司 | High-temperature air atomization and shock cooling system and method |
| CN108662907A (en) * | 2017-03-30 | 2018-10-16 | 中冶长天国际工程有限责任公司 | A kind of vertical cooling machine discharge control method and device |
| CN110907180A (en) * | 2019-10-17 | 2020-03-24 | 芮锋射频技术(上海)有限公司 | Cooling method for high-temperature jet combustion equipment used for darkroom |
-
2013
- 2013-10-18 CN CN201320646351.0U patent/CN203657542U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557719A (en) * | 2013-10-18 | 2014-02-05 | 江西稀有稀土金属钨业集团有限公司 | High-temperature air atomization and shock cooling system and method |
| CN103557719B (en) * | 2013-10-18 | 2015-12-23 | 江西稀有稀土金属钨业集团有限公司 | A kind of high-temperature gas atomization quick chilling system and method |
| CN108662907A (en) * | 2017-03-30 | 2018-10-16 | 中冶长天国际工程有限责任公司 | A kind of vertical cooling machine discharge control method and device |
| CN108662907B (en) * | 2017-03-30 | 2019-11-19 | 中冶长天国际工程有限责任公司 | A kind of vertical cooling machine discharge control method and device |
| CN110907180A (en) * | 2019-10-17 | 2020-03-24 | 芮锋射频技术(上海)有限公司 | Cooling method for high-temperature jet combustion equipment used for darkroom |
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