CN210993631U - Flue gas dehydration and white smoke elimination system - Google Patents
Flue gas dehydration and white smoke elimination system Download PDFInfo
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- CN210993631U CN210993631U CN201921525459.8U CN201921525459U CN210993631U CN 210993631 U CN210993631 U CN 210993631U CN 201921525459 U CN201921525459 U CN 201921525459U CN 210993631 U CN210993631 U CN 210993631U
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Abstract
The utility model discloses a smoke dewatering and white smoke eliminating system, which comprises a smoke heat exchanger with a smoke inlet and a smoke outlet, a smoke dewatering tower, a fan and a chimney communicated with the fan outlet; the flue gas dehydration tower is provided with a plurality of dehydration chambers, and each dehydration chamber is provided with a water adsorption packing layer; the flue gas outlet of the flue gas heat exchanger is respectively communicated with the flue gas inlet of the dehydration chamber; the smoke outlets of the dehydration chambers are all communicated with a fan; a desorption heat supply device is arranged inside the water adsorption packing layer; the dehydration chamber is also communicated with a vacuum desorption device. The utility model discloses utilize the water absorption packing layer to the adsorption efficiency of hydrone, adsorb the steam in the flue gas to reduce the moisture content of flue gas, reach the purpose of dehydration, white cigarette that disappears, have one take off inhale more, adsorb in turn and desorption regeneration, desorption effect is good, waste heat utilization's advantage.
Description
Technical Field
The utility model belongs to the technical field of the flue gas is handled, concretely relates to flue gas dehydration and white cigarette system disappears.
Background
The wet desulphurization can generate white smoke because in a wet desulphurization system, a desulfurizer solution is in direct contact with high-temperature flue gas, and the moisture of the desulfurizer solution absorbs the heat of the flue gas to be vaporized, so that the flue gas absorbs water vapor in the cooling process, and the water content of the flue gas is greatly increased. Along with the proceeding of the desulfurization process, the temperature of the flue gas is gradually reduced, the capacity of carrying water vapor by the flue gas is reduced (the saturated water content is reduced) due to the reduction of the temperature of the flue gas, when the water vapor amount exceeds the carrying capacity of the flue gas, a large amount of water vapor is condensed into water drops, and white smoke is formed when the flue gas is directly discharged to the outside.
The generation of white smoke causes troubles to the lives of surrounding residents and influences the perception of the environment. In addition, new regulations for atmospheric control are provided in many places throughout the country, and the control index of white smoke emission is referred to for smoke whitening, so that white smoke elimination becomes an environmental protection problem which needs to be paid great attention to the industries such as firepower, electric power, coking and the like. In a word, the method has great significance for eliminating white smoke pollution.
It is seen that improvements and enhancements to the prior art are needed.
SUMMERY OF THE UTILITY MODEL
In view of the weak point of above-mentioned prior art, the utility model aims to provide a flue gas dehydration and white cigarette system that disappears utilizes the water absorption packing layer to the adsorption efficiency of hydrone, adsorbs the steam in the flue gas to reduce the moisture content of flue gas, reach the purpose of dehydration, white cigarette disappears, have one take off inhale more, adsorb in turn and desorption regeneration, the good advantage of desorption effect.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a flue gas dehydration and white smoke elimination system comprises a flue gas heat exchanger with a flue gas inlet and a flue gas outlet, a flue gas dehydration tower, a fan and a chimney communicated with the fan outlet; the flue gas dehydration tower is provided with a plurality of dehydration chambers, and each dehydration chamber is provided with a water adsorption packing layer; the flue gas outlet of the flue gas heat exchanger is respectively communicated with the flue gas inlet of the dehydration chamber; the smoke outlets of the dehydration chambers are all communicated with a fan; a desorption heat supply device is arranged inside the water adsorption packing layer; the dehydration chamber is also communicated with a vacuum desorption device.
In the smoke dehydration and white smoke elimination system, the water adsorption filler layer is a 3A molecular sieve water adsorption filler layer.
In the smoke dehydration and white smoke elimination system, the water absorption filler layer is an activated carbon water absorption filler layer.
In the flue gas dehydration and white smoke elimination system, the dehydration chambers are arranged along the height direction of the flue gas dehydration tower.
In the smoke dehydrating and white smoke eliminating system, the number of the dehydrating chambers is 4.
The smoke dehydration and white smoke elimination system also comprises a heat supply circulating pump; the desorption heat supplier, the heat supply circulating pump and the flue gas heat exchanger are communicated to form a circulating loop.
In the flue gas dehydration and white smoke elimination system, the vacuum desorption device comprises a vacuum pump, a condensed water collection tank, a condenser, a circulating water cooler and a condensation circulating pump; the dehydration chamber, the vacuum pump, a heat flow pipeline of the condenser and the condensed water collecting tank are communicated in sequence to form a circulation loop; the condensation circulating pump, a cold flow pipeline of the condenser and the circulating water cooler are communicated in sequence to form a circulating loop; and a water outlet is formed in the bottom of the condensed water collecting tank.
In the smoke dehydration and white smoke elimination system, the condenser is a shell and tube heat exchanger.
In the smoke dehydration and white smoke elimination system, the dehydration chamber is provided with a desorption air supply valve.
In the flue gas dehydration and white smoke elimination system, a flue gas inlet and a desorption air make-up valve of the dehydration chamber are arranged below the water adsorption packing layer; the smoke outlet of the dehydration chamber, the connection part of the dehydration chamber and the vacuum pump are arranged above the water absorption packing layer.
Has the advantages that:
the utility model provides a flue gas dehydration and white cigarette system that disappears utilizes the water absorption packing layer to the adsorption efficiency of hydrone, adsorbs the steam in the flue gas to reduce the moisture content of flue gas, reach the purpose of dehydration, white cigarette that disappears, have one take off inhale more, adsorb in turn and desorption regeneration, the good advantage of desorption effect.
Set up the desorption heat supply ware in water absorption packing layer inside, after water absorption packing layer adsorbs the saturation, carry out the heat exchange through the desorption heat supply ware to water absorption packing layer, vacuum desorption device carries out the evacuation to the dehydration room simultaneously and handles, and under the state of negative pressure and intensification, the adsorbed vapor of water absorption packing layer will break away from therefrom and flow to vacuum desorption device, realizes the desorption regeneration of water absorption packing layer.
Drawings
Fig. 1 is a schematic connection diagram of the flue gas dehydration and white smoke elimination system provided by the present invention.
Detailed Description
The utility model provides a flue gas dehydration and white smoke system that disappears, for making the utility model discloses a purpose, technical scheme and effect are clearer, more clear and definite, and it is right that the following refers to the attached drawing and the embodiment is lifted the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1, the present invention provides a smoke dewatering and white smoke eliminating system, which comprises a smoke heat exchanger 1 with a smoke inlet and a smoke outlet, a smoke dewatering tower 2, a fan 3, and a chimney 4 communicated with the outlet of the fan 3; the flue gas dehydration tower 2 is provided with a plurality of dehydration chambers 21, and each dehydration chamber 21 is provided with a water adsorption packing layer 22; the flue gas outlet of the flue gas heat exchanger 1 is respectively communicated with the flue gas inlet of the dehydration chamber 21; the smoke outlets of the dehydration chamber 21 are all communicated with the fan 3; a desorption heat supply device 5 is arranged in the water absorption packing layer 22; the dehydration chamber 21 is also communicated with a vacuum desorption device.
The plurality of dehydration chambers 21 are provided along the height direction of the flue gas dehydration tower 2. In this embodiment, the number of the dehydration chambers is 4. In addition, a water adsorbing filler layer 22 is provided at the middle position of the dewatering chamber 21. A plurality of dehydration rooms can adopt "one takes off and inhales more" (one dehydration room is in desorption regeneration state, and a plurality of dehydration rooms are in adsorption state), realize that flue gas dehydration tower 2 carries out steam absorption, desorption regeneration simultaneously, make a plurality of dehydration rooms work in turn to guarantee the stronger work continuity of flue gas dehydration tower.
The industrial wet flue gas flows in from the flue gas inlet of the flue gas heat exchanger 1, and enters the plurality of dehydration chambers 21 in the adsorption working state of the flue gas dehydration tower 2 from the flue gas outlet of the flue gas heat exchanger 1 after heat exchange. In the dehydration chamber 21, the flue gas flows through the water absorption packing layer 22 from bottom to top, after the water absorption packing layer 22 adsorbs steam, flows to the fan 3 from the exhanst gas outlet of dehydration chamber 21, and under the drive power effect of fan 3, the flue gas through dehydration constantly flows out from dehydration chamber 21, discharges to the atmosphere through chimney 4, reaches the purpose of flue gas dehydration, white cigarette that disappears to realize the flue gas safety and discharge.
The water absorption filler layer 22 is a 3A molecular sieve water absorption filler layer. The adsorption capacity of the 3A molecular sieve to water molecules is utilized to adsorb water vapor in the flue gas so as to reduce the water content of the flue gas and achieve the aim of eliminating white smoke. Besides the 3A molecular sieve, other water absorbing agents (drying agents) can be used for replacing the water absorbing agents, and the dehydration of the smoke is completed.
Besides, the water absorption packing layer 22 is an activated carbon water absorption packing layer. By selecting the activated carbon material, the sulfur dioxide, the nitrogen oxide, the water vapor and the like in the flue gas can be removed simultaneously.
Wherein, the pipeline between the flue gas heat exchanger 1 and the dehydration chamber 21 is connected with a flue gas inlet valve, and the pipeline between the fan 3 and the dehydration chamber 21 is connected with a flue gas outlet valve. The flue gas inlet valve and the flue gas outlet valve are electromagnetic valves.
The vacuum desorption device comprises a vacuum pump 61, a condensed water collecting tank 63, a condenser 62, a circulating water cooler 65 and a condensation circulating pump 64; the dehydration chamber 21, the vacuum pump 61, a heat flow pipeline of the condenser 62 and the condensed water collecting tank 63 are communicated in sequence to form a circulation loop; the condensation circulating pump 64, the cold flow pipeline of the condenser 62 and the circulating water cooler 65 are communicated in sequence to form a circulating loop; the bottom of the condensed water collection tank 63 is provided with a drain outlet (not shown in the figure) for recycling condensed water.
In this embodiment, the condenser 62 is a shell and tube heat exchanger, wherein the circulating water is routed on the shell side of the condenser 62 and the exhaust gas is routed on the tube side of the condenser 62.
Wherein, the pipe connection between vacuum pump 61 and the dehydration chamber 21 has a vacuum desorption valve, and the pipe connection between condensate water collection tank 63 and the dehydration chamber 21 has a desorption exhaust gas discharge valve, and in this embodiment, the outlet of this desorption exhaust gas discharge valve is connected to the flue gas inlet valve front end of the rear end of the flue gas heat exchanger 1. The vacuum desorption valve and the desorption waste gas discharge valve are electromagnetic valves. The condensed water collection tank 63 is provided with a condensed water discharge valve at a water discharge port for controlling the discharge of the condensed water. The condensed water drain valve may be a solenoid valve.
When the vacuum desorption device works and performs vacuum desorption regeneration for the dehydration chamber 21, the vacuum pump 61 is started to vacuumize the dehydration chamber to be subjected to desorption regeneration, so that water vapor is separated from the water adsorption filler layer and flows to the condenser 62 through the vacuum pump 61, the heat exchange is performed with circulating water conveyed by the condensation circulating pump 64, and the circulating water is cooled into water after heat exchange and is collected in the condensed water collection tank 63. And the exhaust gas (flue gas) flowing into the condensed water collection tank 63 together with the water flows back to the dehydration chamber 21. The condensate water collection tank 63 is provided with a water level gauge, which may be a liquid level sensor, and when water reaches the highest water level of the condensate water collection tank 63, the condensate water collection tank 63 needs to be drained, and if the liquid level sensor is used to detect the water level in real time, the condensate water can be drained automatically through the condensate water drain valve.
In the vacuum desorption regeneration process, the flue gas in the dehydration chamber 21 and the water vapor of the water absorption packing layer 22 are pumped to a vacuum desorption device through a vacuum pump, the water vapor in the dehydration chamber is collected and recycled after being cooled, and then the flue gas is discharged and mixed with the wet flue gas flowing through the flue gas heat exchanger 1 and is sent to the dehydration chamber 21 in an adsorption working state. In the process, the flue gas inlet and the flue gas outlet of the dehydration chamber 21 in desorption regeneration are closed.
In addition, the dehydration chamber 21 is provided with a desorption aeration valve 23. By arranging the desorption aeration valve 23, the operation can be adjusted to control the vacuum degree in the dehydration chamber 21, so as to obtain the best desorption effect.
A smoke inlet of the dehydration chamber 21 and a desorption air compensating valve 23 are arranged below the water absorption packing layer 22; the smoke outlet of the dehydration chamber 21, the connection part of the dehydration chamber 21 and the vacuum pump 61 are arranged above the water absorption filler layer 22.
The smoke dehydrating and white smoke eliminating system also comprises a heat supply circulating pump 51; the desorption heat supplier 5 and the heat supply circulating pump 51 are communicated with the flue gas heat exchanger 1 to form a circulating loop. In this embodiment, desorption heater 5 can be located inside water absorption packing layer 22 with the mode of coil pipe, and the tube coupling between desorption heater 5 and the heat supply circulating pump 51 has the desorption heat supply valve, and the tube coupling between desorption heater 5 and flue gas heat exchanger 1 has the desorption heat supply valve, and the desorption heat supply valve is the solenoid valve.
In the vacuum desorption work, still carry out the heat transfer to water absorption packing layer 22 through desorption heat supply ware 5 and heat up, make more steam break away from water absorption packing layer 22 inside more easily, further promote the desorption effect. Inside circulation in the return circuit that forms between flue gas heat exchanger 1, desorption heat supply ware 5 and the heat supply circulating pump 51 has heat transfer medium, and this heat transfer medium contains wet flue gas heat exchange back with the industry in flue gas heat exchanger 1 is inside, and under the work of heat supply circulating pump 51, heat transfer medium carries the heat to flow to the water absorption packing layer 22 of waiting desorption regeneration, and with the heat transfer of water absorption packing layer 22, the temperature that causes the water absorption packing layer rises to impel steam to break away from the water absorption packing layer. The waste heat of the flue gas is utilized to the desorption regeneration work, the operation energy consumption of the flue gas dehydration and white smoke elimination system is reduced, and the effects of energy conservation and environmental protection are achieved.
This flue gas dehydration and white smoke elimination system disposes the industrial control computer with solenoid valve electric connection such as flue gas inlet valve, flue gas outlet valve, vacuum desorption valve, desorption exhaust emission valve, makes this system can the corresponding solenoid valve of automatic control, long-term stable operation this system, uses the dehydration room to carry out efficient dehydration to the flue gas in turn, finally accomplishes the dehydration of flue gas, the work of white smoke elimination.
To sum up, the utility model provides a flue gas dehydration and white cigarette system that disappears utilizes the water absorption packing layer to the adsorption efficiency of hydrone, adsorbs the steam in the flue gas to reduce the moisture content of flue gas, reach the purpose of dehydration, white cigarette disappears, have one take off inhale many, adsorb in turn and desorption regeneration, the good advantage of desorption effect.
Set up the desorption heat supply ware in water absorption packing layer inside, after water absorption packing layer adsorbs the saturation, carry out the heat exchange through the desorption heat supply ware to water absorption packing layer, vacuum desorption device carries out the evacuation to the dehydration room simultaneously and handles, and under the state of negative pressure and intensification, the adsorbed vapor of water absorption packing layer will break away from therefrom and flow to vacuum desorption device, realizes the desorption regeneration of water absorption packing layer.
It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.
Claims (10)
1. A flue gas dehydration and white smoke elimination system is characterized by comprising a flue gas heat exchanger with a flue gas inlet and a flue gas outlet, a flue gas dehydration tower, a fan and a chimney communicated with the fan outlet; the flue gas dehydration tower is provided with a plurality of dehydration chambers, and each dehydration chamber is provided with a water adsorption packing layer; the flue gas outlet of the flue gas heat exchanger is respectively communicated with the flue gas inlet of the dehydration chamber; the smoke outlets of the dehydration chambers are all communicated with a fan; a desorption heat supply device is arranged inside the water adsorption packing layer; the dehydration chamber is also communicated with a vacuum desorption device.
2. The smoke dewatering and white smoke abatement system of claim 1, wherein the water-adsorbing filler layer is a 3A molecular sieve water-adsorbing filler layer.
3. The smoke dewatering and white smoke abatement system of claim 1, wherein the water-adsorbing filler layer is an activated carbon water-adsorbing filler layer.
4. The smoke dewatering and white smoke abatement system of claim 1, wherein a plurality of said dewatering chambers are disposed along a height direction of the smoke dewatering tower.
5. The smoke dewatering and whitening smoke system of claim 4, wherein the number of dewatering chambers is 4.
6. The smoke dewatering and white smoke abatement system of claim 1, further comprising a heat supply circulation pump; the desorption heat supplier, the heat supply circulating pump and the flue gas heat exchanger are communicated to form a circulating loop.
7. The smoke dewatering and white smoke abatement system of claim 1, wherein the vacuum desorption device comprises a vacuum pump, a condensed water collection tank, a condenser, a circulating water cooler, a condensing circulating pump; the dehydration chamber, the vacuum pump, a heat flow pipeline of the condenser and the condensed water collecting tank are communicated in sequence to form a circulation loop; the condensation circulating pump, a cold flow pipeline of the condenser and the circulating water cooler are communicated in sequence to form a circulating loop; and a water outlet is formed in the bottom of the condensed water collecting tank.
8. The flue gas dehydration and white smoke abatement system of claim 7, wherein said condenser is a shell and tube heat exchanger.
9. The smoke dewatering and white smoke abatement system of claim 7, wherein said dewatering chamber is provided with a desorption aeration valve.
10. The smoke dehydrating and white smoke eliminating system according to claim 9, wherein the smoke inlet and the desorption aeration valve of the dehydrating chamber are arranged below the water absorption packing layer; the smoke outlet of the dehydration chamber, the connection part of the dehydration chamber and the vacuum pump are arranged above the water absorption packing layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921525459.8U CN210993631U (en) | 2019-09-09 | 2019-09-09 | Flue gas dehydration and white smoke elimination system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921525459.8U CN210993631U (en) | 2019-09-09 | 2019-09-09 | Flue gas dehydration and white smoke elimination system |
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| CN210993631U true CN210993631U (en) | 2020-07-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110575735A (en) * | 2019-09-09 | 2019-12-17 | 佛山君帝环保科技有限公司 | Flue gas dehydration and white smoke elimination system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110575735A (en) * | 2019-09-09 | 2019-12-17 | 佛山君帝环保科技有限公司 | Flue gas dehydration and white smoke elimination system |
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