CN210448618U - Zero gas consumption deoiling adsorption drying system of gas - Google Patents
Zero gas consumption deoiling adsorption drying system of gas Download PDFInfo
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- CN210448618U CN210448618U CN201921355992.4U CN201921355992U CN210448618U CN 210448618 U CN210448618 U CN 210448618U CN 201921355992 U CN201921355992 U CN 201921355992U CN 210448618 U CN210448618 U CN 210448618U
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Abstract
The utility model discloses a gaseous zero gas consumption deoiling adsorption drying system, including the person in charge that admits air, the deoiling reactor, cold dry system, two tower parallel system, the person in charge that admits air communicates the deoiling reactor, the gas outlet of deoiling reactor communicates the purification rear end of two tower parallel system, the purification rear end of this two tower parallel system leads to the purification front end of two tower parallel system through the pipeline, the gas outlet of deoiling reactor leads to cold dry system, cold dry system communicates the purification front end of two tower parallel system through the pipeline, the purification rear end of two tower parallel system communicates the regeneration trachea and leads to subsequent processing apparatus, the purification front end of two tower parallel system leads to cold dry system; control valves are respectively arranged on pipelines among the gas inlet main pipe, the oil removal reactor, the cold drying system and the double-tower parallel system. The utility model relates to a gaseous zero gas consumption deoiling adsorption drying system, the outer row of no moisture and regeneration gas realizes zero gas consumption adsorption drying.
Description
Technical Field
The utility model belongs to the technical field of gaseous purification, specific theory relates to a gaseous zero gas consumption deoiling adsorption drying system.
Background
In the traditional gas double-tower adsorption, two adsorption towers are used for alternately switching adsorption and regeneration cold blowing states to realize gas drying. One tower absorbs moisture in gas by an adsorbent (such as silica gel, activated alumina, molecular sieve and the like) under a high partial pressure state, a part of dried gas is subjected to pressure reduction and heating and then enters the other tower to perform desorption regeneration on the adsorbent, the regeneration is the reverse process of adsorption, the regeneration of the adsorbent is to ensure that the adsorbent which is saturated or cannot achieve the expected adsorption effect is treated by methods such as physics, chemistry, biochemistry and the like, so that the adsorbent is recovered to the initial state before adsorption as far as possible, the cyclic utilization of the adsorbent is realized, the life cycle of the adsorbent is prolonged, and the treatment cost and the system slag discharge are reduced.
The thermal regeneration method in the regeneration method is the regeneration method which is most widely applied and has the most mature technology at present. The method is a method for increasing the vibration energy of adsorbate molecules by external heating and raising the temperature, so that the adsorption equilibrium relationship is changed, and the adsorbate is desorbed from the adsorbent or thermally decomposed. Among the current gaseous deoiling drying system, gas itself contains moisture when getting into the system, therefore the adsorbent can desorb a large amount of moisture when carrying out heat regeneration through the regeneration gas, and when moisture is arranged outward, often can take away the regeneration gas, causes gaseous extravagant, also has negative effects to the pressure of system simultaneously.
SUMMERY OF THE UTILITY MODEL
For solving above technical problem, the utility model aims to provide a gaseous zero gas consumption deoiling adsorption drying system, the outer row of no moisture and regeneration gas realizes zero gas consumption adsorption drying.
The utility model discloses the purpose realizes like this:
the utility model provides a gaseous zero gas consumption deoiling adsorption drying system, includes the gas inlet main pipe, the deoiling reactor, cold system, the parallel system of two towers of waiting to purify the gas, and its key lies in: the double-tower parallel system comprises double towers, a first parallel pipeline and a second parallel pipeline, wherein the double towers are respectively arranged in parallel through the first parallel pipeline and the second parallel pipeline, the first parallel pipeline and the second parallel pipeline are respectively provided with 4 control valves, and the control valves on the first parallel pipeline or the second parallel pipeline are in a group in pairs and are respectively positioned at the purification front end and the purification rear end of the double towers; the air inlet main pipe is communicated with the oil removal reactor, an air outlet of the oil removal reactor is communicated with the purification rear end of a first parallel pipeline through a first branch, the purification rear end of the first parallel pipeline is communicated with the purification front end of a second parallel pipeline through a pipeline, an air outlet of the oil removal reactor is communicated with the cold drying system through a second branch, the cold drying system is communicated with the purification front end of the first parallel pipeline through a pipeline, the purification rear end of the second parallel pipeline is communicated with a regeneration air pipe and is communicated with a subsequent processing device, and the purification front end of the second parallel pipeline is communicated with the cold drying system; and control valves are respectively arranged on pipelines among the gas inlet main pipe, the oil removal reactor, the cold drying system and the double-tower parallel system.
By adopting the structure, the operation of the flow is controlled by the control valve, and the operation is divided into the following four states:
a) introducing gas into the gas inlet main pipe, removing oil substances in the gas by the oil removal reactor, heating and regenerating the tower A in the double towers, cooling and drying the system, adsorbing the tower B in the double towers and performing subsequent treatment;
b) the gas is introduced into the gas inlet main pipe, oil substances in the gas are removed by the oil removal reactor, the gas is cooled and dried by a cooling system, tower A in the double towers is cooled and blown, tower B in the double towers is adsorbed, and a subsequent treatment device is arranged;
c) introducing gas into the gas inlet main pipe, removing oil substances in the gas by the oil removal reactor, heating and regenerating the tower B in the double towers, cooling and drying the system, adsorbing the tower A in the double towers and performing subsequent treatment;
d) the gas inlet main pipe is filled with gas, the oil removal reactor removes oil substances in the gas, the cold drying system is used for cold blowing of a tower B in double towers, adsorption of a tower A in the double towers and a subsequent treatment device.
Particularly, when a heating regeneration loop exists, the cold drying system is positioned in the subsequent flow of the regeneration tower, the temperature of the moisture-containing damp and hot compressed air passing through the regeneration tower can be reduced by the cold drying system in sequence, so that moisture in the compressed air is condensed in the temperature reduction process, the moisture-containing damp and hot compressed air is subjected to gas-water separation by a filter and a cold drying machine in the cold drying system, and the separated condensed water is uniformly discharged and treated by a sewage discharge pipe of equipment; the cold drying system is skillfully utilized to realize the regeneration of the adsorption type drying system, the regeneration of the adsorption tower is realized without the mode of emptying the regenerated gas to take away the desorbed moisture, the change of the system pressure and the waste of the regenerated gas can not be caused, and the unexpected effect is achieved.
And the oil removal reactor is always connected to the front end of the system, and the gas to be purified enters the rear system after being subjected to oil removal and purification. In this way, the gas to be purified can firstly provide a heat source for the subsequent regeneration link through the heating system of the oil removal reactor, and the effective regeneration temperature is ensured to achieve the regeneration effect of the adsorption tower; furthermore, the oil content and the grease in the compressed air can be effectively removed through the oil removing reaction<0.01mg/m3The compressed air entering the refrigeration dryer is clean and oilless, and the influence on the heat exchange effect and the service life caused by oil accumulation on the tube walls of the evaporator and the precooler of the refrigeration dryer due to the oil content of the compressed air is avoided; in addition, the condensed water condensed by the clean compressed air does not contain oil stains, and the clean condensed liquid can be directly discharged.
Preferably, a heat exchanger is arranged between the air inlet pipe of the oil removal reactor and the air inlet pipe of the cold drying system.
By adopting the structure, the oil removal reactor combines the functions of oil removal and heating, the temperature of gas entering the oil removal reactor is lower, generally about 40 ℃, and the temperature of gas entering the cold drying system is about 200 ℃, so that the gas entering the oil removal reactor is preheated by the heat exchanger, and is precooled, and the heating efficiency of the oil removal reactor and the cold drying efficiency of the cold drying system can be improved.
Preferably, the post-processing device is a dust processing device. The dust remaining in the gas can be treated.
Preferably, a cooler is disposed on a pipeline, in which the purification rear end of the first parallel pipeline is communicated with the purification front end of the second parallel pipeline. Because the gas is higher after the cold blowing regeneration tower, if directly get into the adsorption tower, can influence adsorption efficiency, consequently increase the cooler between cold blowing regeneration tower and adsorption tower, play the effect of reducing the temperature.
Has the advantages that:
1. optimization of the heat supply unit: the heating unit and the oil removal purification unit are combined to form the oil removal reactor, a heater is omitted, the heat requirement of heating regeneration in the adsorption drying system is met through flow optimization and combination of a heat exchanger, and effective utilization of heat is achieved to the maximum extent.
2. The optimization of the cold dryer function realizes zero gas consumption: in the system, the functions realized by the cold dryer are not only limited to dewatering raw gas and reducing dew point, but also realize gas-water separation of regenerated hot and humid air, and realize effective regeneration of the adsorption drying system. Through system optimization, no regeneration gas is emptied, and no pressure reduction and pressure equalization process exists during system operation, so that the crushing of the adsorbent caused by pressure change in the pressurization and pressure relief processes can be avoided, the service life of the adsorbent is prolonged, and finally, the zero-gas-consumption drying system integrating the oil removal function is realized.
3. Reliable integration of oil removal, drying and purification functions: through the optimized combination of the oil removal reaction unit, the freezing type drying unit and the adsorption drying unit, gas entering the system is subjected to oil removal purification by the oil removal reactor, so that the cold drying system and the adsorption drying system are effectively prevented from being polluted by oil stains, and the service lives of the cold drying system and the adsorption drying system are prolonged; in addition, condensed water in the gas after oil removal treatment has no oil stain and can be directly discharged; and moreover, the integration of the oil removing and drying functions can provide oil-free dry gas for customers at one time, the configuration of the model selection combination of various functional devices is avoided, and the oil removing function integrated zero-gas-consumption drying system is finally realized by an optimized process flow.
Drawings
FIG. 1 is a schematic view of the general flow of the present invention;
FIG. 2 is a schematic flow chart of state a of the present invention;
fig. 3 is a schematic flow chart of state b of the present invention;
fig. 4 is a schematic flow chart of state c of the present invention;
fig. 5 is a schematic flow chart of state d of the present invention;
description of reference numerals:
1 is an air inlet main pipe, 2 is an oil removal reactor, 3 is a cold drying system, 4a is a double tower, 4a1 is an A tower in the double tower, 4a2 is a B tower in the double tower, 4B is a first parallel pipeline, 4c is a second parallel pipeline, 5 is a subsequent treatment device, 6 is a heat exchanger, 7 is a cooler, and V1-13 are control valves.
Detailed Description
The present invention will be further explained with reference to the following examples and drawings.
In the description of the present invention, it should be understood that the terms "purification front end", "purification back end", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
The 'purification front end' refers to one end of an inlet of the adsorption tower for gas to be adsorbed, taking the flowing direction of the gas in the adsorption tower in an adsorption state as a standard; the "purified rear end" refers to the end of the outlet of the adsorption tower after adsorption of gas.
Examples
As shown in fig. 1: the utility model provides a gaseous zero gas consumption deoiling adsorption drying system, is responsible for 1, deoiling reactor 2, cold dry system 3, the parallelly connected system of two towers by the admitting air of waiting to purify the gas and constitutes, the parallelly connected system of two towers comprises two towers 4a, first parallelly connected pipeline 4b and the parallelly connected pipeline 4c of second, two towers 4a connect the setting in parallel through first parallelly connected pipeline 4b and the parallelly connected pipeline 4c of second respectively, as shown in fig. 1 ~ 5: the first parallel pipeline 4b and the second parallel pipeline 4c are respectively provided with 4 control valves, and the control valves on the first parallel pipeline 4b or the second parallel pipeline 4c are grouped in pairs and are respectively positioned at the purification front end and the purification rear end of the double tower 4 a; the air inlet main pipe 1 is communicated with the oil removal reactor 2, the air outlet of the oil removal reactor 2 is communicated with the purification rear end of the first parallel pipeline 4b through a first branch, the purification rear end of the first parallel pipeline 4b is communicated with the purification front end of the second parallel pipeline 4c through a pipeline, the purification rear end of the first parallel pipeline 4b is communicated with the purification front end of the second parallel pipeline 4c, a cooler 7 is arranged on the pipeline of the purification front end of the second parallel pipeline 4c, the air outlet of the oil removal reactor 2 is communicated with the cold dry system 3 through a second branch, and a heat exchanger 6 is arranged between the air inlet pipe of the oil removal reactor 2 and the air inlet pipe of the cold dry system 3. The cold drying system 3 is communicated with the purification front end of a first parallel pipeline 4b through a pipeline, and the purification rear end of a second parallel pipeline 4c is communicated with a regeneration air pipe to lead to a subsequent treatment device 5; the post-processing device 5 is a dust processing device. The purification front end of the second parallel pipeline 4c is communicated with the cold drying system 3; as shown in FIGS. 1 to 5: and control valves V1-V13 are respectively arranged on pipelines among the gas inlet main pipe 1, the oil removal reactor 2, the cold drying system 3 and the double-tower parallel system.
The working principle is as follows:
during specific operation, the following four processes are operated circularly, so that when the tower A is heated and regenerated and cold blown and regenerated, the tower B is normally adsorbed, after the tower B is saturated in adsorption, the tower A is switched to keep adsorption, and the tower B is heated, regenerated and cold blown and regenerated, so that the double towers are switched and used circularly, and the specific steps are as follows:
a) as shown in fig. 2, V1, V3, V11, V7, V4, V8 and V12 are opened in sequence, and other control valves are closed, so that the following flow paths are completed: introducing gas into the gas inlet main pipe, removing oil substances in the gas by the oil removal reactor, heating and regenerating the tower A in the double towers, cooling and drying the system, adsorbing the tower B in the double towers and performing subsequent treatment;
b) as shown in fig. 3, V1, V2, V9, V11, V5, V6 and V12 are opened in sequence, and other control valves are closed, so that the following flow paths are completed: introducing gas into the gas inlet main pipe, removing oil substances in the gas by the oil removal reactor, cooling the air in a drying system, performing cold blowing on tower A in the double towers, cooling the cooler, performing adsorption on tower B in the double towers, and performing subsequent treatment;
c) as shown in fig. 4, V1, V3, V10, V6, V4, V9 and V13 are opened in sequence, and other control valves are closed, so that the following flow paths are completed: introducing gas into the gas inlet main pipe, removing oil substances in the gas by the oil removal reactor, heating and regenerating the tower B in the double towers, cooling and drying the system, adsorbing the tower A in the double towers and performing subsequent treatment;
d) as shown in fig. 5, V1, V2, V8, V10, V5, V7 and V13 are opened in sequence, and other control valves are closed, so that the following flow paths are completed: the gas inlet main pipe is filled with gas, the oil removal reactor removes oil substances in the gas, the cold drying system, the tower B in the double towers for cold blowing, the cooler for cooling, the tower A in the double towers for adsorption and the subsequent treatment device.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and the "gas" described therein is the "gas to be purified" or the abbreviation of the gas for preliminary purification, and the source of the "gas to be purified" herein may be compressed air or the gas to be purified discharged from other systems, etc., and those skilled in the art can make various similar indications without departing from the spirit and claims of the present invention, and such changes fall within the protection scope of the present invention.
Claims (4)
1. The utility model provides a gaseous zero gas consumption deoiling adsorption drying system, is responsible for (1), deoiling reactor (2), cold dry system (3), the parallel system of two towers including the admit air of waiting to purify the gas, its characterized in that: the double-tower parallel system comprises double towers (4a), a first parallel pipeline (4b) and a second parallel pipeline (4c), wherein the double towers (4a) are respectively arranged in parallel through the first parallel pipeline (4b) and the second parallel pipeline (4c), 4 control valves are respectively arranged on the first parallel pipeline (4b) and the second parallel pipeline (4c), and the control valves on the first parallel pipeline (4b) or the second parallel pipeline (4c) are in group two by two and are respectively positioned at the purification front end and the purification rear end of the double towers (4 a); the air inlet main pipe (1) is communicated with the oil removal reactor (2), an air outlet of the oil removal reactor (2) is communicated with a purification rear end of a first parallel pipeline (4b) through a first branch, the purification rear end of the first parallel pipeline (4b) is communicated with a purification front end of a second parallel pipeline (4c) through a pipeline, an air outlet of the oil removal reactor (2) is communicated with the cold drying system (3) through a second branch, the cold drying system (3) is communicated with the purification front end of the first parallel pipeline (4b) through a pipeline, the purification rear end of the second parallel pipeline (4c) is communicated with a regeneration air pipe and communicated with a subsequent processing device (5), and the purification front end of the second parallel pipeline (4c) is communicated with the cold drying system (3); and control valves are respectively arranged on the oil removal reactor (2), the cold drying system (3), the pipeline between the double-tower parallel systems and the air inlet main pipe (1).
2. The gas zero-gas-consumption oil-adsorption drying system according to claim 1, characterized in that: and a heat exchanger (6) is arranged between the air inlet pipe of the oil removal reactor (2) and the air inlet pipe of the cold drying system (3).
3. The gas zero-gas-consumption oil-adsorption drying system according to claim 1, characterized in that: the post-processing device (5) is a dust processing device.
4. The gas zero-gas-consumption oil-adsorption drying system according to claim 1, characterized in that: and a cooler (7) is arranged on a pipeline, which is communicated with the purification front end of the second parallel pipeline (4c), at the purification rear end of the first parallel pipeline (4 b).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354635A (en) * | 2019-08-19 | 2019-10-22 | 重庆鲍斯净化设备科技有限公司 | A kind of zero gas consumption oil removing absorbed type drying system and method for gas |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110354635A (en) * | 2019-08-19 | 2019-10-22 | 重庆鲍斯净化设备科技有限公司 | A kind of zero gas consumption oil removing absorbed type drying system and method for gas |
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