CN214439106U - Saturated active carbon desorption device - Google Patents
Saturated active carbon desorption device Download PDFInfo
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- CN214439106U CN214439106U CN202120210053.1U CN202120210053U CN214439106U CN 214439106 U CN214439106 U CN 214439106U CN 202120210053 U CN202120210053 U CN 202120210053U CN 214439106 U CN214439106 U CN 214439106U
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Abstract
The utility model provides a saturated activated carbon desorption device, belonging to the technical field of environmental management; including the activated carbon box, the activated carbon box is connected with the metal heat transfer board, the metal heat transfer board is connected with hot air distribution box, hot air distribution box is equipped with the distribution baffle, the activated carbon box is equipped with the desorption pipe, the desorption union coupling has the vacuum pump, the vacuum pump is equipped with the pump outlet pipe, the pump outlet pipe is equipped with the spark arrester, the pump outlet pipe is connected with burns burning furnace, it is equipped with ignition, intake pipe and blast pipe to burn burning furnace, the heat exchanger has been cup jointed to the blast pipe, the heat exchanger shell side is equipped with heat transfer gas inlet pipe and heat transfer gas outlet pipe, the heat transfer gas outlet pipe is equipped with the fan, the heat transfer gas outlet pipe is connected with hot air distribution box, hot air distribution box is equipped with the cold air outlet pipe, the cold air outlet pipe is equipped with the shrinkage pipe. The utility model discloses to heat up the desorption and combine together with the decompression desorption, improved desorption efficiency greatly, improved the desorption effect, and adopt waste heat recovery technology, saved the energy consumption of intensification desorption, reduced the desorption cost.
Description
Technical Field
The utility model provides a saturated active carbon desorption device belongs to environmental management technical field.
Background
The waste gas refers to toxic and harmful gas discharged by human in the production and living process. Especially chemical plants, steel plants, pharmaceutical plants, coking plants and oil refineries, etc., the discharged waste gas has large odor, seriously pollutes the environment and affects the human health. The content of VOCs (volatile organic compounds) in the exhaust gas is extremely high, and the volatile organic compounds refer to organic compounds with saturated vapor pressure of more than 70Pa at normal temperature and boiling point of 260 ℃ below under normal pressure, or all organic compounds with corresponding volatility and vapor pressure of more than or equal to 10Pa at 20 ℃. When the concentration of volatile organic compounds in the air is too high, acute poisoning is easily caused, and a mild person can have headache, dizziness, cough, nausea, vomiting or a damming up; serious patients can have hepatotoxicity and even coma, and some of them can be life-threatening. At present, methods for treating VOCs mainly comprise a high-temperature combustion method and an adsorption and desorption method. Combustion processes are more efficient at removing VOCs but do not recover valuable components. The adsorption and desorption method can effectively recover useful components in the waste gas, and the activated carbon is a common adsorbent due to strong adsorption capacity and high adsorption stability. But because the cost is too high, the activated carbon is often recycled and desorbed and then reused, so that the use cost can be greatly reduced. The existing activated carbon desorption method mainly comprises the following steps: the desorption process comprises the steps of temperature rising desorption, pressure reduction desorption, flushing desorption, replacement desorption, magnetization desorption and ultrasonic desorption, but the existing desorption process basically adopts a single desorption method, the desorption efficiency is not high, the adsorption effect of the regenerated active carbon due to incomplete desorption is often generated, the adsorption efficiency of the regenerated active carbon after repeated use is greatly reduced, and only the treatment of scrapping can be realized.
SUMMERY OF THE UTILITY MODEL
The utility model provides a saturated active carbon desorption device combines together intensification desorption and decompression desorption, has improved desorption efficiency greatly, has improved the desorption effect, and adopts waste heat recovery technology, has saved the energy consumption of intensification desorption, has reduced the desorption cost.
The utility model provides a saturated active carbon desorption device, its characterized in that: the device comprises an activated carbon box, wherein the bottom of the activated carbon box is connected with a metal heat transfer plate, the lower part of the metal heat transfer plate is connected with a hot air distribution box, the hot air distribution box is provided with distribution baffles, the distribution baffles are arranged in the hot air distribution box in a staggered manner, one side of the activated carbon box is provided with a desorption pipe, one end of the desorption pipe is connected with a vacuum pump, one end of the vacuum pump is provided with a pump outlet pipe, the middle part of the pump outlet pipe is provided with a flame arrester, one end of the pump outlet pipe is connected with an incinerator, the bottom of the incinerator is provided with an ignition device, the middle part of the incinerator is provided with an air inlet pipe, the top of the incinerator is connected with an exhaust pipe, the exhaust pipe is sleeved with a heat exchanger, the top of a shell pass of the heat exchanger is provided with a heat exchange air inlet pipe, the bottom of a shell pass of the heat exchanger is provided with a heat exchange air outlet pipe, the heat exchange air outlet pipe is provided with a fan, and is connected with the hot air distribution box, and a cold air outlet pipe is arranged on one side of the hot air distribution box, and a contraction pipe is arranged at the tail end of the cold air outlet pipe.
The ignition device is provided with an igniter, the igniter is connected with an ignition tube, an ignition tube and a gas tube, one end of the ignition tube is connected to the bottom of the incinerator and inserted into the incinerator, one end of the ignition tube is connected with an ignition fan, and the gas tube is provided with a gas valve and a check valve.
And a heat insulation layer is sleeved outside the heat exchange gas outlet pipe.
The top of the incinerator is provided with a first filter screen.
The activated carbon box is provided with a pressure gauge.
The air inlet pipe is provided with an air inlet valve.
And a second filter screen is arranged on the heat exchange gas inlet pipe.
The principle of the utility model is as follows:
temperature rising desorption: the adsorption quantity of the substance is reduced along with the increase of the temperature, the temperature of the adsorbent is increased, and the adsorbed components can be desorbed, and the method is also called temperature-variable desorption;
and (3) decompression desorption: the adsorption capacity of the substance increases with increasing pressure, and the adsorbent can be regenerated by adsorbing at higher pressure and reducing the pressure or vacuumizing, which is also called pressure swing desorption.
When the device is used, the vacuum pump is started firstly, the vacuum pump extracts air in the activated carbon box through the desorption pipe to enable the activated carbon box to generate a negative pressure state, activated carbon adsorbates are desorbed slowly and separated from activated carbon due to lower pressure, the activated carbon adsorbates enter the incinerator through the desorption pipe and the pump outlet pipe, the gas valve is opened at the moment, gas is introduced into the ignition pipe, the ignition fan is started to convey air to the ignition pipe, the igniter is started to ignite the gas, a stable fire source is provided to the incinerator, the fire source ignites the activated carbon adsorbates entering the incinerator in the incinerator to be continuously combusted, the air inlet valve is opened, compressed air is introduced into the incinerator to provide sufficient combustion-supporting substances, sufficient combustion-supporting substances are ensured, the combusted waste gas is filtered through the filter screen to remove dust, then becomes clean and qualified hot air enters the exhaust pipe, the heat exchanger is extracted through the heat exchanger, the fan is started to extract air in a shell pass through a heat exchange gas inlet pipe, and fresh air enters the heat exchanger shell pass through a heat exchange gas inlet pipe, the temperature of the hot air is increased through the exhaust pipe, the hot air enters the hot air distribution box through the heat exchange gas outlet pipe and exchanges heat with the active carbon positioned on the upper part of the metal heat transfer plate, desorption is accelerated after the temperature of the active carbon is increased, the distribution baffle is arranged in the hot air distribution box, the flowing distance of the hot air is increased, so that the retention time of the hot air in the hot air distribution box is increased, the heat exchange is more sufficient, the tail end of the cold air outlet pipe is provided with a contraction pipe, the exhaust speed is reduced, the heat exchange time of the hot air and the active carbon is increased, the heat exchange efficiency is improved, the heat loss of the hot air in the flow of the heat exchange gas outlet pipe is reduced through the heat preservation layer, the heat exchange efficiency is improved, the flame arrester is used for preventing a fire source in the incinerator from being poured into the vacuum pump to generate risks, the check valve is used for preventing the air in the ignition fan from entering the gas pipe to generate risks, and the filter screen is used for preventing solid impurities in the air from entering the fan to influence the operation of the fan, the pressure gauge is used for observing the pressure reduction condition in the activated carbon box, and checking the sealing condition of the activated carbon box if the pressure reduction is abnormal in time.
The utility model has the advantages that:
the utility model provides a saturated active carbon desorption device combines together intensification desorption and decompression desorption, has improved desorption efficiency greatly, has improved the desorption effect, and adopts waste heat recovery technology, has saved the energy consumption of intensification desorption, has reduced the desorption cost.
Drawings
Fig. 1 is a schematic structural diagram of the saturated activated carbon desorption device of the present invention.
Fig. 2 is a top view of the hot air distribution box of the saturated activated carbon desorption device of the present invention.
Fig. 3 is the enlarged view in circle a in the structural schematic diagram of a saturated activated carbon desorption device of the present invention.
(1, activated carbon box, 2, metal heat transfer plate, 3, hot air distribution box, 4, distribution baffle, 5, desorption pipe, 6, vacuum pump, 7, pump outlet pipe, 8, flame arrester, 9, incinerator, 10, ignition device, 11, air inlet pipe, 12, exhaust pipe, 13, heat exchanger, 14, heat exchange gas inlet pipe, 15, heat exchange gas outlet pipe, 16, fan, 17, cold air outlet pipe, 18, shrink tube, 19, igniter, 20, ignition pipe, 21, ignition pipe, 22, gas pipe, 23, ignition fan, 24, gas valve, 25, check valve, 26, heat preservation layer, 27, filter screen one, 28, pressure gauge, 29, air inlet valve, 30, filter screen two)
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The utility model provides a saturated active carbon desorption device, its characterized in that: the device comprises an activated carbon box 1, wherein the bottom of the activated carbon box 1 is connected with a metal heat transfer plate 2, the lower part of the metal heat transfer plate 2 is connected with a hot air distribution box 3, the hot air distribution box 3 is provided with distribution baffles 4, the distribution baffles 4 are staggered in the hot air distribution box 3, one side of the activated carbon box 1 is provided with a desorption pipe 5, one end of the desorption pipe 5 is connected with a vacuum pump 6, one end of the vacuum pump 6 is provided with a pump outlet pipe 7, the middle part of the pump outlet pipe 7 is provided with a flame arrester 8, one end of the pump outlet pipe 7 is connected with an incinerator 9, the bottom of the incinerator 9 is provided with an ignition device 10, the middle part of the incinerator 9 is provided with an air inlet pipe 11, the top of the incinerator 9 is connected with an exhaust pipe 12, the exhaust pipe 12 is sleeved with a heat exchanger 13, the top of the shell side of the heat exchanger 13 is provided with a heat exchange gas inlet pipe 14, and the bottom of the shell side of the heat exchanger 13 is provided with a heat exchange gas outlet pipe 15, the heat exchange gas outlet pipe 15 is provided with a fan 16, the heat exchange gas outlet pipe 15 is connected with the hot air distribution box 3, one side of the hot air distribution box 3 is provided with a cold air outlet pipe 17, and the tail end of the cold air outlet pipe 17 is provided with a contraction pipe 18.
The ignition device 10 is provided with an igniter 19, the igniter 19 is connected with an ignition tube 20, an ignition tube 21 and a gas tube 22, one end of the ignition tube 20 is connected to the bottom of the incinerator 9 and inserted into the incinerator 9, one end of the ignition tube 21 is connected with an ignition fan 23, and the gas tube 22 is provided with a gas valve 24 and a check valve 25.
And an insulating layer 26 is sleeved outside the heat exchange gas outlet pipe 15.
The top of the incinerator 9 is provided with a first filter screen 27.
The activated carbon box 1 is provided with a pressure gauge 28.
The intake pipe 11 is provided with an intake valve 29.
The heat exchange gas inlet pipe 14 is provided with a second filter screen 30.
As shown in fig. 1, 2 and 3: temperature rising desorption: the adsorption quantity of the substance is reduced along with the increase of the temperature, the temperature of the adsorbent is increased, and the adsorbed components can be desorbed, and the method is also called temperature-variable desorption;
and (3) decompression desorption: the adsorption capacity of the substance increases with increasing pressure, and the adsorbent can be regenerated by adsorbing at higher pressure and reducing the pressure or vacuumizing, which is also called pressure swing desorption.
When the device is used, firstly, the vacuum pump 6 is started, the vacuum pump 6 pumps air in the activated carbon box 1 through the desorption pipe 5, so that the activated carbon box 1 generates a negative pressure state, activated carbon adsorbates are desorbed and separated from activated carbon slowly due to lower pressure, the activated carbon adsorbates enter the incinerator 9 through the desorption pipe 5 and the pump outlet pipe 7, at the moment, the gas valve 24 is opened, gas is introduced into the ignition pipe 20, the ignition fan 23 is started, air is conveyed to the ignition pipe 20, the igniter 19 is started, the gas is ignited by the igniter 19, a stable fire source is provided to the incinerator 9, the activated carbon adsorbates entering the incinerator 9 are ignited by the fire source to be continuously combusted in the incinerator 9, the air inlet valve 29 is opened, compressed air is introduced into the incinerator 9 to provide sufficient combustion-supporting substances, the combusted waste gas is fully combusted, the combusted waste gas is filtered through the filter screen I27 to remove dust, and becomes clean and qualified hot air enters the exhaust pipe 12 and passes through the heat exchanger 13, the fan 16 is started to extract air in the shell pass of the heat exchanger 13, fresh air enters the shell pass of the heat exchanger 13 through the heat exchange air inlet pipe 14, the heat exchange temperature of the fresh air and hot air passing through the exhaust pipe 12 is increased, the fresh air enters the hot air distribution box 3 through the heat exchange air outlet pipe 15 and exchanges heat with active carbon positioned on the upper part of the metal heat transfer plate 2, desorption is accelerated after the temperature of the active carbon is increased, the distribution baffle 4 is arranged in the hot air distribution box 3, the flowing distance of the hot air is increased, so that the staying time of the hot air in the hot air distribution box 3 is increased, heat exchange is more sufficient, the tail end of the cold air outlet pipe 17 is provided with the contraction pipe 18, the exhaust speed is reduced, the heat exchange time of the hot air and the active carbon is increased, the heat exchange efficiency is improved, the heat preservation layer 26 reduces the heat loss of the hot air in the flowing of the heat exchange air outlet pipe 15, the heat exchange efficiency is improved, the flame arrester 8 is used for preventing the fire source in the incinerator 9 from being poured into the vacuum pump 6 to generate risks, the check valve 25 is used for preventing air in the ignition fan 23 from entering the gas pipe 22 to cause risks, the filter screen II 30 is used for preventing solid impurities in the air from entering the fan 16 to influence the operation of the fan 16, the pressure gauge 28 is used for observing the pressure reduction condition in the activated carbon box 1, and if the pressure reduction condition is abnormal, the sealing condition of the activated carbon box 1 is checked in time.
The utility model discloses to heat up the desorption and combine together with the decompression desorption, improved desorption efficiency greatly, improved the desorption effect, and adopt waste heat recovery technology, saved the energy consumption of intensification desorption, reduced the desorption cost.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a saturated active carbon desorption device which characterized in that: the device comprises an activated carbon box (1), wherein the bottom of the activated carbon box (1) is connected with a metal heat transfer plate (2), the lower part of the metal heat transfer plate (2) is connected with a hot air distribution box (3), the hot air distribution box (3) is provided with distribution baffles (4), the distribution baffles (4) are arranged in the hot air distribution box (3) in a staggered manner, one side of the activated carbon box (1) is provided with a desorption pipe (5), one end of the desorption pipe (5) is connected with a vacuum pump (6), one end of the vacuum pump (6) is provided with a pump outlet pipe (7), the middle part of the pump outlet pipe (7) is provided with a flame arrester (8), one end of the pump outlet pipe (7) is connected with an incinerator (9), the bottom of the incinerator (9) is provided with an ignition device (10), the middle part of the incinerator (9) is provided with an air inlet pipe (11), the top of the incinerator (9) is connected with an air inlet pipe (12), heat exchanger (13) has been cup jointed in blast pipe (12), heat exchanger (13) shell side top is equipped with heat transfer gas inlet tube (14), heat exchanger (13) shell side bottom is equipped with heat transfer gas outlet pipe (15), heat transfer gas outlet pipe (15) are equipped with fan (16), heat transfer gas outlet pipe (15) are connected with hot-air distribution case (3), hot-air distribution case (3) one side is equipped with cold air outlet pipe (17), cold air outlet pipe (17) end is equipped with shrink tube (18).
2. The saturated activated carbon desorption device according to claim 1, wherein: the ignition device (10) is provided with an igniter (19), the igniter (19) is connected with an ignition tube (20), an ignition tube (21) and a gas tube (22), one end of the ignition tube (20) is connected to the bottom of the incinerator (9) and inserted into the incinerator (9), one end of the ignition tube (21) is connected with an ignition fan (23), and the gas tube (22) is provided with a gas valve (24) and a check valve (25).
3. The saturated activated carbon desorption device according to claim 1, wherein: and a heat insulation layer (26) is sleeved outside the heat exchange gas outlet pipe (15).
4. The saturated activated carbon desorption device according to claim 1, wherein: the top of the incinerator (9) is provided with a first filter screen (27).
5. The saturated activated carbon desorption device according to claim 1, wherein: the activated carbon box (1) is provided with a pressure gauge (28).
6. The saturated activated carbon desorption device according to claim 1, wherein: the air inlet pipe (11) is provided with an air inlet valve (29).
7. The saturated activated carbon desorption device according to claim 1, wherein: and a second filter screen (30) is arranged on the heat exchange gas inlet pipe (14).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120210053.1U CN214439106U (en) | 2021-01-26 | 2021-01-26 | Saturated active carbon desorption device |
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| CN202120210053.1U CN214439106U (en) | 2021-01-26 | 2021-01-26 | Saturated active carbon desorption device |
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| CN214439106U true CN214439106U (en) | 2021-10-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114345314A (en) * | 2021-12-28 | 2022-04-15 | 安徽国孚润滑油工业有限公司 | Regeneration device and method for oil-containing silica gel after desorption by water |
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2021
- 2021-01-26 CN CN202120210053.1U patent/CN214439106U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114345314A (en) * | 2021-12-28 | 2022-04-15 | 安徽国孚润滑油工业有限公司 | Regeneration device and method for oil-containing silica gel after desorption by water |
| CN114345314B (en) * | 2021-12-28 | 2024-08-23 | 安徽国孚环境科技股份有限公司 | Device and method for regenerating oil-containing silica gel after water desorption |
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