CN211260864U - Flue gas white elimination system - Google Patents
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- CN211260864U CN211260864U CN201921850458.0U CN201921850458U CN211260864U CN 211260864 U CN211260864 U CN 211260864U CN 201921850458 U CN201921850458 U CN 201921850458U CN 211260864 U CN211260864 U CN 211260864U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model relates to a flue gas processing technology field, more specifically relates to a flue gas white elimination system, include: the system comprises a fan, an evaporator, a water baffle, a condenser, a compressor and a throttling element, wherein the fan, the evaporator, the water baffle and the condenser are sequentially connected to form a flue gas channel; the compressor, the condenser, the throttling element and the evaporator are sequentially connected to form a first heat exchange cycle. The utility model discloses can not only simplify the technological process that the flue gas disappears white, still reduce the flue gas and disappear white required energy consumption by a wide margin.
Description
Technical Field
The utility model relates to a flue gas treatment technical field, more specifically relates to a flue gas white elimination system.
Background
The flue gas is a mixture of gas and smoke dust, the components of the flue gas are complex, the gas comprises water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides and the like, and the smoke dust comprises ash, coal particles, oil drops, high-temperature cracking products and the like of fuel. The white smoke is formed by smoke rich in moisture, is a main reason for polluting atmosphere of residential areas, not only influences the environment, but also damages the health of people. The industries such as steel or power plants can continuously generate a large amount of smoke in the operation process, the smoke rich in moisture is discharged into the atmosphere and can be contacted with the air, the smoke is cooled, and the moisture in the smoke can be condensed to generate white smoke. If the white smoke is not treated, a large amount of moisture can be taken away, and the environment is corroded and polluted. Therefore, in order to achieve environmental protection, the flue gas needs to be dehydrated and whitened before being discharged. The white elimination treatment is to cool and dehumidify the flue gas, and then heat and discharge the flue gas. Therefore, the temperature and the humidity of the smoke are changed, and the phenomenon of white smoke caused by carrying away a large amount of moisture or contacting with air can be avoided when the smoke is discharged. The pollution of white smoke is relieved, and the natural environment is protected. In the prior art, the white flue gas can be cooled, heated, dehumidified, humidified and even filtered, so that the white flue gas can be well treated, and the pollution to the environment caused by the white flue gas directly discharged into the atmosphere is avoided.
Although the prior art can well realize the whitening of the smoke and solve the problem of the pollution of the white smoke, the defects still exist in the process of whitening the smoke. For example, in the process of cooling and heating white smoke, the prior art needs two energy sources, one for cooling and one for heating, and in addition, a set of refrigeration equipment needs to be arranged to cool the smoke, and another set of heating equipment heats the smoke, so that the whole process flow of smoke whitening can be completed only by arranging independent energy sources and processing equipment respectively. Although this can achieve the purpose of white smoke abatement, the white smoke treatment device is extremely complicated in arrangement, and two energy sources are required to be provided at the same time, which makes the whole process flow of the smoke abatement energy consumption huge. The prior art flue gas whitening, whether in the method and arrangement of the device, makes the cost very high. Therefore, there is a need for a device and a method that can simplify the process flow of the smoke whitening and greatly reduce the energy consumption required by the smoke whitening.
Disclosure of Invention
In order to solve the above problems, the utility model provides a white system and method of flue gas disappears, makes the technological process that the flue gas disappears white obtain simplifying to reduce the required energy consumption of flue gas white that disappears by a wide margin.
The utility model adopts the technical proposal that:
a flue gas whitening system, comprising: the system comprises a fan, an evaporator, a water baffle, a condenser, a compressor and a throttling element, wherein the fan, the evaporator, the water baffle and the condenser are sequentially connected to form a flue gas channel; the compressor, the condenser, the throttling element and the evaporator are sequentially connected to form a first heat exchange cycle.
In the prior art, two energy sources are needed for smoke whitening, one energy source is used for cooling, the other energy source is used for heating, and in addition, two sets of corresponding devices are needed to finish the whole technological process of cooling and heating. The two sets of devices are arranged, so that the flow of the smoke and white elimination system becomes complex, and two energy sources are required to be provided simultaneously, so that the energy consumption of the device in operation is serious, and the operation cost is high. Aiming at the problems, the scheme adopts a set of cold and hot homologous system to solve, the system is also provided with a shell, the fan, the evaporator, the water baffle, the condenser, the compressor and the throttling element are arranged in the shell, the shell is provided with a smoke inlet and a smoke outlet, and the smoke inlet, the fan, the evaporator, the water baffle, the condenser and the smoke outlet are sequentially connected to form a smoke channel which is sequentially connected to form a smoke channel; and then the compressor, the condenser, the throttling element and the evaporator are sequentially connected to form a first heat exchange cycle. The flue gas channel and the first heat exchange cycle work simultaneously and interact with each other to realize the whole flow of flue gas whitening. The specific process comprises the following steps: the fan sucks high-temperature flue gas into the system from the flue gas inlet, the flue gas enters the system and firstly reaches the evaporator, the evaporator cools the flue gas, the heat of the flue gas is absorbed, the cooled flue gas flows through the water baffle, the condensed moisture in the flue gas is intercepted by the water baffle under the driving of wind power, and the flue gas continuously moves forward in the flue gas channel and enters the condenser. At the moment, the heat absorbed by the evaporator when the flue gas is cooled is transported to the condenser through the first heat exchange cycle, the condenser heats the flue gas by utilizing the transported heat, and the finally heated flue gas is discharged from the smoke exhaust port. Because the cold and hot energy is transferred in the same system, all the steps of the smoke whitening can be independently completed by only one energy source in the scheme, the system of the scheme not only simplifies the whole process flow of the smoke whitening, reduces the number of required devices, reduces the operation cost, but also has the advantages of energy conservation and consumption reduction, and has remarkable energy conservation compared with the prior art.
Furthermore, the system also comprises a heat absorber and a heat radiator, wherein the fan, the heat absorber, the evaporator, the water baffle, the heat radiator and the condenser are sequentially connected to form a flue gas channel; the heat absorber is connected with the heat radiator to form a second heat exchange cycle.
Specifically, a heat absorber and a heat radiator are added into the system to form a new flue gas channel: the heat exchanger is connected with the heat radiator to form a second heat exchange cycle. When the flue gas enters the flue gas channel from the flue gas inlet, the flue gas flows through the heat absorber before the evaporator cools the flue gas, and the heat absorber absorbs the heat of the flue gas to primarily cool the flue gas; when the flue gas passes through the water baffle, the flue gas reaches the heat radiator before the condenser heats the flue gas. At this moment, the heat that absorbs when the heat absorber carries out preliminary cooling to the flue gas transports the heat release ware through second heat transfer circulation, and the heat release ware utilizes the heat of transportation to carry out preliminary heating to the flue gas. The heat absorber and the heat radiator finish primary cooling and primary heating in the system, reduce the load of the evaporator and the condenser, reduce the energy output requirement of the original system, and the second heat exchange circulation formed by the heat absorber and the heat radiator realizes the mutual transfer of cold and heat energy in the same circulation, thus further reducing the energy consumption of the whole system.
Furthermore, the system also comprises a precooler and a cooling tower, wherein the fan, the heat absorber, the precooler, the evaporator, the water baffle, the heat radiator and the condenser are sequentially connected to form a flue gas channel; and the cooling tower is connected with the precooler to form a third heat exchange cycle.
Specifically, before entering the evaporator for cooling and dehumidifying, the flue gas firstly flows through the precooler, the precooler cools and dehumidifies the flue gas, and the requirement on energy consumption is very low due to the fact that the cooling tower and the precooler are connected to form a third heat exchange cycle, but the cooling and dehumidifying effect range of the flue gas is very large, and therefore energy can be further saved.
Further, the system also comprises a thermostat, wherein the thermostat is arranged after the condenser; the temperature regulator is connected with the cooling tower to form a fourth heat exchange cycle.
Specifically, the cooling tower is also connected to a thermostat, which regulates the temperature of the flue gas as it passes through the thermostat before exiting the system. Similarly, the cooling tower and the temperature regulator are connected to form a fourth heat exchange cycle, which has low energy consumption requirement, but has large flue gas temperature regulation effect, so that further energy saving can be realized.
Further, the heat exchange medium of the third heat exchange cycle and/or the fourth heat exchange cycle is water or brine.
Further, the evaporator and/or the condenser and/or the precooler and/or the attemperator are finned tube heat exchangers.
Further, the system also comprises a water pan which is arranged below the heat absorber and/or the precooler and/or the evaporator and/or the water baffle and/or the condenser and/or the heat radiator and/or the thermostat.
Specifically, the heat absorber, the precooler, the evaporator, the water baffle, the condenser, the heat radiator, the temperature regulator and other components are arranged above the inner part of the shell, the water receiving tray is arranged below the heat absorber, the precooler, the evaporator, the water baffle, the condenser, the heat radiator and the temperature regulator, and the water receiving tray can discharge redundant water generated during the work of the heat absorber, the precooler, the evaporator, the water baffle, the condenser, the heat radiator and the temperature regulator to the corresponding place, so that the influence on other devices is avoided, and the interference on the operation of the system is avoided.
Further, the heat exchange medium used in the first heat exchange cycle and/or the second heat exchange cycle is freon.
Further, the water baffle is made of plastic or aluminum alloy.
Particularly, the water baffle is made of plastic or aluminum alloy, so that the water baffle is more durable and is not easy to corrode.
Further, the fan is a centrifugal fan.
Specifically, because the air volume and the air pressure of the centrifugal fan are large, the air draft distance and the air supply distance are far, when the number of the pipeline bends of the system is large, the resistance is large, and the centrifugal fan can well complete the procedures of guiding flue gas and outputting flue gas.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the device with cold and hot sources is adopted for smoke whitening, the process flow of smoke whitening is simplified, and the equipment and operation cost is reduced.
(2) The evaporator, the condenser, the heat absorber and the heat radiator realize that cold and hot energy is only transferred in the same system in the process of cooling and heating, thereby realizing energy conservation and consumption reduction.
(3) The precooler and the temperature regulator further save energy and reduce consumption of the whole system by utilizing the characteristic that the water cooling energy consumption is low but the temperature regulation effect is obvious.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a schematic view of a first heat exchange cycle of the present invention;
FIG. 3 is a schematic view of a second heat exchange cycle of the present invention;
in the figure: 1-smoke inlet, 2-fan, 3-precooler, 4-evaporator, 5-water baffle, 6-condenser, 7-temperature regulator, 8-smoke outlet, 9-water pan, 10-cooling tower, 11-compressor, 12-shell, 14-throttling element, 15-heat absorber, 16-heat radiator.
Detailed Description
The drawings are only for purposes of illustration and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Examples
This embodiment provides a flue gas white system that disappears, and fig. 1 is the utility model discloses a system schematic diagram, as shown in the figure, include: the device comprises a fan 2, an evaporator 4, a water baffle 5, a condenser 6, a compressor 11 and a throttling element 14, wherein the fan 2, the evaporator 4, the water baffle 5 and the condenser 6 are sequentially connected to form a flue gas channel; fig. 2 is a schematic diagram of a first heat exchange cycle of the present invention, and as shown in the figure, the compressor 11, the condenser 6, the throttling element 14 and the evaporator 4 are connected in sequence to form the first heat exchange cycle.
In the prior art, two energy sources are needed for smoke whitening, one energy source is used for cooling, the other energy source is used for heating, and in addition, two sets of corresponding devices are needed to finish the whole technological process of cooling and heating. The two sets of devices are arranged, so that the flow of the smoke and white elimination system becomes complex, and two energy sources are required to be provided simultaneously, so that the energy consumption of the device in operation is serious, and the operation cost is high. For solving the problems, the embodiment adopts a set of cold and hot homologous system, the system is also provided with a shell 12, the fan 2, the evaporator 4, the water baffle 5, the condenser 6, the compressor 11 and the throttling element 14 are arranged in the shell 12, the shell 12 is provided with a smoke inlet 1 and a smoke outlet 8, and the smoke inlet 1, the fan 2, the evaporator 4, the water baffle 5, the condenser 6 and the smoke outlet 8 are sequentially connected to form a smoke channel which is sequentially connected to form a smoke channel; the compressor 11, the condenser 6, the throttling element 14 and the evaporator 4 are then connected in sequence to form a first heat exchange cycle. The flue gas channel and the first heat exchange cycle work simultaneously and interact with each other to realize the whole flow of flue gas whitening. The specific process comprises the following steps: the fan 2 sucks high-temperature flue gas into the system from the flue gas inlet 1, the flue gas enters the system and firstly reaches the evaporator 4, the evaporator 4 cools the flue gas, the heat of the flue gas is absorbed, the cooled flue gas flows through the water baffle 5, the condensed moisture in the flue gas is intercepted by the water baffle 5 under the driving of wind power, and the flue gas continuously moves forward in the flue gas channel and enters the condenser 6. At this moment, the heat absorbed by the evaporator 4 when the flue gas is cooled is transported to the condenser 6 through the first heat exchange cycle, the condenser 6 heats the flue gas by utilizing the transported heat, and the flue gas after being heated is discharged from the flue gas outlet 8. Because the cold and hot energy is transferred in the same system, in the embodiment, all the steps of the flue gas whitening can be independently completed by only one energy source, and the system of the embodiment not only simplifies the whole process flow of the flue gas whitening, reduces the number of required equipment, lightens the operation cost, but also has the advantages of energy conservation and consumption reduction, and has remarkable energy conservation compared with the prior art.
Further, the system also comprises a heat absorber 15 and a heat radiator 16, wherein the fan 2, the heat absorber 15, the evaporator 4, the water baffle 5, the heat radiator 16 and the condenser 6 are sequentially connected to form a flue gas channel; fig. 3 is a schematic diagram of a second heat exchange cycle of the present invention, and as shown in the figure, the heat absorber 15 is connected to the heat radiator 16 to form a second heat exchange cycle.
Specifically, a heat absorber 15 and a heat radiator 16 are added into the system to form a new flue gas channel: the heat exchanger comprises a smoke inlet 1, a fan 2, a heat absorber 15, an evaporator 4, a water baffle 5, a heat radiator 16, a condenser 6 and a smoke outlet 8, wherein the heat absorber 15 is connected with the heat radiator 16 to form a second heat exchange cycle. When the flue gas enters the flue gas channel from the flue gas inlet 1, the flue gas flows through the heat absorber 15 before the evaporator 4 cools the flue gas, and the heat absorber 15 absorbs the heat of the flue gas to primarily cool the flue gas; when the flue gas passes through the water baffle 5, the flue gas reaches the heat radiator 16 before the condenser 6 heats the flue gas. At this time, the heat absorbed when the heat absorber 15 preliminarily cools down the flue gas is transported to the heat emitter 16 through the second heat exchange cycle, and the heat emitter 16 preliminarily heats the flue gas by using the transported heat. The heat absorber 15 and the heat radiator 16 finish primary cooling and primary heating in the system, reduce the load of the evaporator 4 and the condenser 6, reduce the energy output requirement of the original system, and the second heat exchange cycle formed by the heat absorber 15 and the heat radiator 16 realizes mutual transfer of cold and heat energy in the same cycle, so that the energy consumption of the whole system is further reduced.
Further, the system also comprises a precooler 3 and a cooling tower 10, wherein the fan 2, the heat absorber 15, the precooler 3, the evaporator 4, the water baffle 5, the heat radiator 16 and the condenser 6 are sequentially connected to form a flue gas channel; the cooling tower 10 is connected with the precooler 3 to form a third heat exchange cycle.
Specifically, before entering the evaporator 4 for cooling and dehumidifying, the flue gas firstly flows through the precooler 3, and the precooler 3 cools and dehumidifies the flue gas, and the requirement on energy consumption is very low because the cooling tower 10 is connected with the precooler 3 to form a third heat exchange cycle, but the cooling and dehumidifying effect range of the flue gas is very large, so that the energy can be further saved.
Further, the system also comprises a thermostat 7, the thermostat 7 being arranged after the condenser 6; the temperature regulator 7 is connected with the cooling tower 10 to form a fourth heat exchange cycle.
In particular, the cooling tower 10 is also connected to a thermostat 7, which thermostat 7 regulates the temperature of the flue gases as they pass through the thermostat 7 before they exit the system. Similarly, the cooling tower 10 is connected with the temperature regulator 7 to form a fourth heat exchange cycle, which has a small requirement on energy consumption, but has a large range of effect on temperature regulation of flue gas, so that further energy conservation can be realized.
Further, the evaporator 4 and/or the condenser 6 and/or the precooler 3 and/or the attemperator 7 are all fin-and-tube heat exchangers.
Further, the system also comprises a water tray 9, the water tray 9 being arranged below the heat absorber 15 and/or the precooler 3 and/or the evaporator 4 and/or the water baffle 5 and/or the condenser 6 and/or the heat emitter 16 and/or the thermostat 7.
Specifically, the heat absorber 15, the precooler 3, the evaporator 4, the water baffle 5, the condenser 6, the heat radiator 16, the temperature regulator 7 and other components are arranged above the interior of the shell 12, the water receiving tray 9 is arranged below the heat absorber 15, the precooler 3, the evaporator 4, the water baffle 5, the condenser 6, the heat radiator 16 and the temperature regulator 7, and the water receiving tray 9 can discharge excessive water generated when the heat absorber 15, the precooler 3, the evaporator 4, the water baffle 5, the condenser 6, the heat radiator 16 and the temperature regulator 7 work to corresponding places, so that influence on other devices is avoided, and the system operation is prevented from being interfered.
Further, the heat exchange medium used in the first heat exchange cycle and/or the second heat exchange cycle is freon.
Further, the water baffle 5 is made of plastic or aluminum alloy.
Specifically, the water guard 5 is made of plastic or aluminum alloy, so that the water guard 5 is more durable and is not easily corroded.
Further, the fan 2 is a centrifugal fan 2.
Specifically, because the air volume and the air pressure of the centrifugal fan 2 are large, the air draft distance and the air supply distance are long, when the number of the pipeline bends of the system is large, the resistance is large, and the centrifugal fan 2 can well complete the procedures of guiding the flue gas and outputting the flue gas.
The working principle and the working process of the smoke whitening system of the embodiment are briefly described as follows:
the flue gas white elimination system of this embodiment at first uses fan 2 in with the leading-in system of high temperature flue gas that is rich in moisture content, at first reach heat absorber 15, the inside freon refrigerant that is of heat absorber 15 absorbs the high temperature flue gas heat, and adopted the heat pipe principle, bring the heat to radiator 16 end through freon, flue gas after preliminary cooling passes through precooler 3, precooler 3 internal flow has the cryogenic cooling water that comes from cooling tower 10 and provides, the flue gas is dehumidified and is cooled down simultaneously when contacting with precooler 3, precooler 3 utilizes the water-cooling to consume less energy, the characteristics that the cooling effect is showing, energy saving and consumption reduction have been realized. The flue gas passes through the evaporator 4, low-temperature Freon refrigerant flows in the evaporator 4, the flue gas is further cooled and dehumidified by the evaporator 4, then passes through the water baffle 5, when the flue gas passes through the water baffle 5, water drops driven by wind power are intercepted by the water baffle 5, so that the flue gas can pass through the heat radiator 16 without condensed moisture, the heat radiator 16 releases heat transferred from the heat absorber 15 into the flue gas, the flue gas is subjected to primary heating and temperature rise, then the flue gas passes through the condenser 6, high-temperature Freon refrigerant flows in the condenser 6, so that the flue gas is subjected to deep heating and temperature rise, then the high-temperature dry flue gas passes through the temperature regulator 7, low-temperature water flows in the temperature regulator 7 from the cooling tower 10, and the temperature value of the flue gas collected by the temperature sensor can be compared with the set temperature requirement value through the control system, so as to adjust the amount of cooling water supplied to the temperature regulator 7, the cooling amplitude of the high-temperature dry flue gas is adjusted, and after the process, the dry flue gas reaching the set temperature enters a chimney through a smoke exhaust port 8 and is exhausted out of the atmospheric environment.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.
Claims (10)
1. A flue gas whitening system, comprising: the system comprises a fan, an evaporator, a water baffle, a condenser, a compressor and a throttling element, wherein the fan, the evaporator, the water baffle and the condenser are sequentially connected to form a flue gas channel; the compressor, the condenser, the throttling element and the evaporator are sequentially connected to form a first heat exchange cycle.
2. The smoke whitening system according to claim 1, further comprising a heat absorber and a heat radiator, wherein the fan, the heat absorber, the evaporator, the water baffle, the heat radiator and the condenser are sequentially connected to form a smoke channel; the heat absorber is connected with the heat radiator to form a second heat exchange cycle.
3. The flue gas whitening elimination system of claim 2, further comprising a precooler and a cooling tower, wherein the fan, the heat absorber, the precooler, the evaporator, the water baffle, the heat radiator and the condenser are connected in sequence to form a flue gas channel; and the cooling tower is connected with the precooler to form a third heat exchange cycle.
4. The flue gas whitening reduction system of claim 3, further comprising a temperature regulator, wherein the fan, the heat absorber, the precooler, the evaporator, the water baffle, the heat radiator, the condenser and the temperature regulator are sequentially connected to form a flue gas channel; the temperature regulator is connected with the cooling tower to form a fourth heat exchange cycle.
5. The flue gas whitening system of claim 4, wherein the heat exchange medium of the third heat exchange cycle and/or the fourth heat exchange cycle is water or brine.
6. The flue gas whitening system of claim 5, wherein the evaporator and/or condenser and/or precooler and/or attemperator is a finned-tube heat exchanger.
7. The flue gas whitening system of claim 4, further comprising a water pan disposed below the heat absorber and/or the precooler and/or the evaporator and/or the water baffle and/or the condenser and/or the heat emitter and/or the attemperator.
8. The flue gas whitening system of claim 2, wherein the heat exchange medium of the first heat exchange cycle and/or the second heat exchange cycle is freon.
9. The system of claim 1, wherein the water baffle is made of plastic or aluminum alloy.
10. The flue gas whitening system of claim 1, wherein the fan is a centrifugal fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921850458.0U CN211260864U (en) | 2019-10-30 | 2019-10-30 | Flue gas white elimination system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921850458.0U CN211260864U (en) | 2019-10-30 | 2019-10-30 | Flue gas white elimination system |
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| CN211260864U true CN211260864U (en) | 2020-08-14 |
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