CN212581814U - Novel combination formula vapor recovery system - Google Patents
Novel combination formula vapor recovery system Download PDFInfo
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- CN212581814U CN212581814U CN202021466129.9U CN202021466129U CN212581814U CN 212581814 U CN212581814 U CN 212581814U CN 202021466129 U CN202021466129 U CN 202021466129U CN 212581814 U CN212581814 U CN 212581814U
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Abstract
The utility model discloses a novel combined oil gas recovery system, which comprises an oil gas adsorption/desorption module I, an oil gas adsorption/desorption module II, an oil gas inlet pipeline, a desorption oil gas discharge pipeline and a tail gas discharge pipeline; the oil gas adsorption/desorption module I and the oil gas adsorption/desorption module II have the same structure and respectively comprise a tank body, a desorption inlet, a desorption outlet, an oil gas inlet and a tail gas outlet; the oil gas inlet pipeline is provided with a fan, an electromagnetic valve and an oil gas concentration meter which are connected in sequence. The utility model discloses a set up the desorption import and the desorption export that the level is relative at jar body side equipartition for horizontal direction's desorption air current evenly distributed guarantees adsorbent thermally equivalent, improves desorption efficiency, and oil gas adsorbs/desorption module I, oil gas adsorbs/desorption module II adsorbs under control module's effect, desorption mode switches and goes on, realizes the continuous non-stop operation of oil gas recovery.
Description
Technical Field
The utility model belongs to the technical field of vapor recovery system, concretely relates to novel combination formula vapor recovery system.
Background
With the development of economy and industry, the consumption of fuel oil such as gasoline, diesel oil and the like is continuously and rapidly increased, the volatility of the fuel oil is strong, oil gas is generated inevitably in the processes of loading, unloading and fuel oil using of an oil tank area and a tank truck, chemical smoke is formed by improper oil gas treatment and is discharged into the atmosphere, the safety production is endangered, the environment is polluted, and meanwhile, the discharge of the oil gas must meet the discharge standard regulated by the state, so the oil gas must be recovered. The traditional tank body for oil gas recovery adopts a mode of downward inlet and upward outlet, desorption gas enters a desorption tank from an inlet for desorption, but the desorption effect is poor when vacuum desorption is performed from an opening, the desorption time is long, the desorption efficiency is low, and the use requirement cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at designing a novel combination formula oil gas recovery system, this oil gas recovery system adopt two jar bodies, utilize the setting evenly to arrange and the relative desorption import and desorption export of level at tank body side for desorption gas air current distribution of horizontal direction is more even, and two jar bodies adsorb simultaneously, desorption mode exchange goes on, realizes the recirculation of oil gas absorption, desorption, and the operation of not shutting down improves work efficiency in succession.
The purpose of the utility model can be realized by adopting the following technical scheme: a novel combined type oil gas recovery system comprises an oil gas adsorption/desorption module I, an oil gas adsorption/desorption module II, an oil gas inlet pipeline, a desorbed oil gas discharge pipeline, a tail gas discharge pipeline and a control module; the oil gas adsorption/desorption module I and the oil gas adsorption/desorption module II have the same structure and respectively comprise a tank body, a desorption inlet, a desorption outlet, an oil gas inlet and a tail gas outlet; the desorption inlet and the desorption outlet are horizontally and oppositely arranged on the side surface of the tank body and are uniformly distributed and arranged; the oil gas inlet is arranged at the bottom of the tank body; the tail gas outlet is arranged at the top of the tank body; the oil gas inlet pipeline is respectively connected with an oil gas inlet of the oil gas adsorption/desorption module I and an oil gas inlet of the oil gas adsorption/desorption module II; the desorbed gas inlet pipeline comprises an electromagnetic valve, a heat exchanger, an electric heater and a temperature sensor which are sequentially connected, and is respectively connected with desorption inlets of the oil gas adsorption/desorption module I and the oil gas adsorption/desorption module II; the desorption oil gas discharge pipeline comprises an electromagnetic valve, an oil gas concentration instrument and a vacuum pump, wherein the vacuum pump is connected with the oil gas concentration instrument in series and is respectively connected with desorption outlets of the oil gas adsorption/desorption module I and the oil gas adsorption/desorption module II through the electromagnetic valve; the tail gas discharge pipeline consists of a tail gas main pipeline, a tail gas heat exchange pipeline and a tail gas bypass pipeline, the tail gas main pipeline is respectively connected with tail gas outlets of the oil gas adsorption/desorption module I and the oil gas adsorption/desorption module II, the tail gas heat exchange pipeline and the tail gas bypass pipeline are branched from the tail gas main pipeline, and the tail gas heat exchange pipeline is connected with a heat exchanger of a desorbed gas inlet pipeline.
The tank body is internally provided with an adsorbent and a metal adsorption bed layer, the adsorbent is activated carbon, hydrophobic silica gel or a molecular sieve, the metal adsorption bed layer is a metal grating plate, the metal grating plate is connected with the tank body by welding, and the width of the metal grating is greater than the diameter of the adsorbent.
The fan, the electromagnetic valve and the oil-gas concentration meter on the oil-gas inlet pipeline are all electrically connected with the control module; the blower is a roots blower.
And the electromagnetic valve and the temperature sensor on the desorption gas inlet pipeline are electrically connected with the control module.
The oil gas concentration meter and the electromagnetic valve on the desorption oil gas discharge pipeline are electrically connected with the control module; the vacuum pump is a screw vacuum pump.
An oil gas concentration meter is arranged on the tail gas main pipeline, one end of the oil gas concentration meter is connected to a tail gas outlet of the tank body, the other end of the oil gas concentration meter is connected with an electromagnetic valve on the tail gas bypass pipeline, and the electromagnetic valve and the oil gas concentration meter are both electrically connected with the control module;
the tail gas heat exchange pipeline is provided with a one-way valve for preventing the adsorption tail gas from flowing into the tank body.
The number of desorption inlets and desorption outlets on the side surface of the tank body is more than two.
The control module is a PLC controller, and is respectively electrically connected with the oil gas inlet pipeline, the desorption gas inlet pipeline and the tail gas discharge pipeline.
The utility model discloses a relative desorption import and desorption export of level at jar body side equipartition setting for horizontal direction's desorption air current evenly distributed guarantees adsorbent thermally equivalent, and oil gas adsorbs/desorption module I, oil gas adsorbs/desorption module II adsorbs under control module's effect, desorption mode switches and goes on, realizes that oil gas recovery does not shut down the operation in succession, specifically includes following process:
a. the oil gas adsorption/desorption module I adsorbs oil gas: oil gas enters the oil gas inlet pipeline under the driving of the fan, the control module controls an electromagnetic valve of the oil gas inlet pipeline to enable the oil gas to enter a tank body of the oil gas adsorption/desorption module I, and the oil gas is adsorbed by the oil gas adsorption/desorption module I;
b. the oil gas adsorption/desorption module I desorbs oil gas, and the oil gas adsorption/desorption module II adsorbs oil gas: when the control module detects that the concentration difference value of oil gas at the inlet and the outlet of the tank body of the oil gas adsorption/desorption module I is smaller than a set value C1, the control module controls the electromagnetic valve of the desorption gas inlet pipeline to enable the desorption gas to enter the tank body of the oil gas adsorption/desorption module I for oil gas desorption, and simultaneously controls the electromagnetic valve of the oil gas inlet pipeline to enable the oil gas to enter the tank body of the oil gas adsorption/desorption module II for oil gas adsorption by the oil gas adsorption/desorption module II; when the control module detects that the concentration of oil gas at a desorption outlet of the oil gas adsorption/desorption module I is lower than a set value C2, the oil gas adsorption/desorption module I finishes desorption;
c. the working modes of the oil gas adsorption/desorption module I and the oil gas adsorption/desorption module II are switched and circulated: and the oil gas adsorption/desorption module II performs adsorption-desorption operation under the action of the control module, so that the oil gas adsorption/desorption module I and the oil gas adsorption/desorption module II realize the repeated cycle of oil gas adsorption-desorption.
The beneficial effects of the utility model are that, compare with prior art:
(1) the utility model arranges the desorption gas inlet and outlet on the side surface of the tank body, and a plurality of desorption gas inlets and outlets are uniformly arranged, so that the horizontal desorption gas flow distribution is more uniform, the adsorbent can be heated more uniformly, and the desorption efficiency is improved;
(2) the utility model adopts the metal bed layer in the tank body, and enhances the heat conduction effect of high-temperature desorption gas to the adsorbent in the desorption process, so that the heat of the desorption gas can be better transferred to the adsorbent, and the desorption efficiency is improved; the adsorption heat generated when the metal adsorption bed layer is used for adsorption in the oil gas adsorption process is more easily transferred to the oil gas entering the tank body, so that the damage to the adsorbent due to overhigh adsorption heat of the adsorbent in the oil gas adsorption process is relieved;
(3) the utility model discloses a large amount of heats that will adsorb the production provide the desorption gas that desorption gas got into the pipeline, can reduce the power consumption that electric heater heaies up and brings for desorption gas with simple.
(4) The utility model discloses a two jar bodies realize adsorbing, desorption mode switch goes on, and oil gas recovery does not shut down the operation in succession, improves work efficiency.
(5) The utility model discloses a monitoring jar body is imported and exported oil gas concentration difference and is realized jar body from adsorbing the switching to the desorption, switches the simple easy accuse of logic.
Drawings
Fig. 1 is a schematic structural view of the oil gas recovery system of the present invention;
FIG. 2 is a schematic structural view of a metal adsorption bed layer in the oil gas recovery system of the present invention;
fig. 3 is a working principle diagram of the oil gas recovery system according to the embodiment of the present invention in the working mode (1);
fig. 4 is a working principle diagram of the oil gas recovery system according to the embodiment of the present invention in the working mode (2);
the labels in the figure are: 1. electromagnetic valves I and 2, heat exchangers I and 3, check valves I and 4, heat exchangers II and 5, check valves II and 6, electric heaters I and 7, electric heaters II and 8, temperature sensors I and 9, temperature sensors II and 10, tank bodies I and 11, tank bodies II and 12, electromagnetic valves II and 13, electromagnetic valves III and 14, electromagnetic valves IV and 15, electromagnetic valves V and 16, a fan, 17, a vacuum pump and 18, the device comprises electromagnetic valves VI and 19, oil gas concentration instruments I and 20, oil gas concentration instruments II and 21, oil gas concentration instruments III and 22, oil gas concentration instruments IV and 23, oil gas concentration instruments V and 24, electromagnetic valves VII and 25, electromagnetic valves VIII and 26, desorption inlets I and 27, desorption outlets I and 28, desorption inlets II and 29, desorption outlets II and 30, oil gas inlets I and 31, tail gas outlets I and 32, oil gas inlets II and 33, tail gas outlets II and 34 and metal adsorption bed layers.
Detailed Description
The following detailed description of the embodiments of the present invention will be described with reference to the accompanying drawings, which are provided for illustrative purposes only and are not to be construed as limiting the invention, and for better illustrating the following embodiments, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of the 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.
The connections described in the following examples are all via pipe connections, and the stripping gas is nitrogen.
As shown in fig. 1 and fig. 2, the oil gas recovery system according to this embodiment includes an oil gas adsorption/desorption module i, an oil gas adsorption/desorption module ii, an oil gas inlet pipeline, a desorbed oil gas discharge pipeline, a tail gas discharge pipeline, and a control module; the oil gas adsorption/desorption module I and the oil gas adsorption/desorption module II are consistent in structure, the oil gas adsorption/desorption module I comprises a tank body I10, desorption inlets I26 and desorption outlets I27 which are uniformly distributed and arranged on the side surface of the tank body I10 and are horizontally opposite, an oil gas inlet I30 arranged at the bottom of the tank body I10 and a tail gas outlet I31 arranged at the top of the tank body, and the oil gas adsorption/desorption module II comprises a tank body II 11, desorption inlets II 28 and desorption outlets II 29 which are uniformly distributed and arranged on the side surface of the tank body II 11 and are horizontally opposite, an oil gas inlet II 32 arranged at the bottom of the tank body II 11 and a tail gas outlet II 33 arranged at the top of the tank body II 11; an adsorbent and a metal adsorption bed layer 34 are arranged in the tank body I10 and the tank body II 11, the adsorbent is activated carbon, hydrophobic silica gel or a molecular sieve, the metal adsorption bed layer 34 is a metal grid plate, the metal grid plate is connected with the tank body I10 and the tank body II 11 through welding, the width of the metal grid is larger than the diameter of the adsorbent, and the adsorbent is conveniently filled; the number of desorption inlets I26, desorption inlets II 28, desorption outlets I27 and desorption outlets II 29 on the side surfaces of the tank body I10 and the tank body II 11 is more than two; in the oil gas recovery process, the desorbed gas in the tank body I10 and the tank body II 11 flows out from the desorption outlet I27 and the desorption outlet II 29 and then flows across the metal adsorption bed layer 34 to be contacted with the adsorbent, and the metal adsorption bed layer 34 is embedded into the filled adsorbent, so that the heat conduction effect of the high-temperature desorbed gas on the adsorbent is enhanced, the heat of the desorbed gas can be better transferred to the adsorbent, and the desorption efficiency is improved.
The oil gas inlet pipeline is provided with a fan 16, an electromagnetic valve II 12, an electromagnetic valve IV 14, an oil gas concentration instrument I19 and an oil gas concentration instrument III 21, the fan 16 is a Roots blower, and the fan 16 is respectively connected with the electromagnetic valve II 12, the oil gas concentration instrument I19, the electromagnetic valve IV 14 and the oil gas concentration instrument III 21 in sequence and respectively connected with an oil gas inlet I30 and an oil gas inlet II 32 of the oil gas adsorption/desorption module I and the oil gas adsorption/desorption module II.
The desorbed gas inlet pipeline comprises a solenoid valve I1, a heat exchanger I2, an electric heater I6 and a temperature sensor I8 which are sequentially connected with a desorption inlet I26 of the oil gas adsorption/desorption module I, and a solenoid valve VI 18, a heat exchanger II 4, an electric heater II 7 and a temperature sensor II 9 which are sequentially connected with a desorption inlet II 28 of the oil gas adsorption/desorption module II.
The desorption oil gas discharge pipeline comprises an electromagnetic valve III 13, an electromagnetic valve V15, an oil gas concentration instrument V23 and a vacuum pump 17, the vacuum pump 17 is a screw vacuum pump, the vacuum pump 17 is connected with the oil gas concentration instrument V23 in series, and is respectively connected with a desorption outlet I27 of the oil gas adsorption/desorption module I and a desorption outlet II 29 of the oil gas adsorption/desorption module II through the electromagnetic valve III 13 and the electromagnetic valve V15 in sequence.
The tail gas discharge pipeline consists of a tail gas main pipeline, a tail gas heat exchange pipeline and a tail gas bypass pipeline, the tail gas main pipeline is respectively connected with a tail gas outlet I31 of the oil gas adsorption/desorption module I and a tail gas outlet II 33 of the oil gas adsorption/desorption module II, an oil gas concentration instrument II 20 and an oil gas concentration instrument IV 22 are arranged on the tail gas main pipeline, a tail gas bypass pipeline is provided with a solenoid valve VII 24 and a solenoid valve VIII 25, and the oil gas concentration instrument II 20 and the oil gas concentration instrument IV 22 are respectively connected with the solenoid valve VII 24 and the solenoid valve VIII 25; the tail gas heat exchange pipeline is respectively connected with a heat exchanger II 4 and a heat exchanger I2 of the desorption gas inlet pipeline, a one-way valve I3 and a one-way valve II 5 are arranged on the tail gas heat exchange pipeline, and the one-way valve can prevent adsorbed tail gas from flowing into the tank body in desorption; the oil gas concentration meter II 20, the heat exchanger II 4, the one-way valve I3 and the heat exchanger I2 are sequentially connected; the oil gas concentration meter IV 22, the one-way valve II 5 and the heat exchanger I2 are sequentially connected, the tail gas heat exchange pipeline is connected with the heat exchanger, heat generated during adsorption of the oil gas adsorption/desorption module I and the oil gas adsorption/desorption module II can be supplied to desorption gas entering a pipeline, and therefore power consumption caused by temperature rise of the desorption gas due to a single electric heater is reduced.
The control module is a PLC controller and is respectively electrically connected with the oil gas inlet pipeline, the desorption gas inlet pipeline, the tail gas discharge pipeline, the desorption oil gas discharge pipeline, the electromagnetic valves, the temperature sensor and the oil gas concentration meter.
This embodiment adopts the relative desorption import I26 of level, desorption export I27 and desorption import II 28, desorption export II 29 of the side equipartition setting at jar body I10 and jar body II 11 for horizontal desorption air current evenly distributed guarantees that the adsorbent is heated evenly, and oil gas adsorption/desorption module I, oil gas adsorption/desorption module II adsorb under control module's effect, desorption mode switch goes on, and concrete vapor recovery includes the following process:
a. the oil gas adsorption/desorption module I adsorbs oil gas:
oil gas enters an oil gas inlet pipeline under the driving of a fan 16, a control module controls a solenoid valve II 12 and a solenoid valve IV 14 of the oil gas inlet pipeline to enable the oil gas to enter a tank body I10 of an oil gas adsorption/desorption module I, and the oil gas is adsorbed by the oil gas adsorption/desorption module I;
b. the oil gas adsorption/desorption module I desorbs oil gas, and the oil gas adsorption/desorption module II adsorbs oil gas:
when the control module detects that the concentration difference value of oil gas at the inlet and the outlet of a tank body I10 of an oil gas adsorption/desorption module I is smaller than a set value C1, the control module controls an electromagnetic valve I1 of a desorption gas inlet pipeline to enable the desorption gas to enter the tank body I10 of the oil gas adsorption/desorption module I for oil gas desorption, and simultaneously controls an electromagnetic valve IV 14 of an oil gas inlet pipeline to enable the oil gas to enter a tank body II 11 of the oil gas adsorption/desorption module II, and the oil gas is adsorbed by the oil gas adsorption/desorption module II; when the control module detects that the concentration of oil gas at a desorption outlet of the oil gas adsorption/desorption module I is lower than a set value C2, the oil gas adsorption/desorption module I finishes desorption;
c. the working modes of the oil gas adsorption/desorption module I and the oil gas adsorption/desorption module II are switched and circulated:
and the oil gas adsorption/desorption module II performs adsorption-desorption operation under the action of the control module, so that the oil gas adsorption/desorption module I and the oil gas adsorption/desorption module II realize the repeated cycle of oil gas adsorption-desorption.
The set values C1 and C2 are set in accordance with the actual adsorption capacity of the adsorption tank.
The detailed working process of the specific embodiment is as follows:
operating mode (1): the process of switching the tank body I10 from the adsorption state to the desorption state is as follows:
as shown in fig. 3, when the tank i 10 is adsorbing hydrocarbons, the PLC controller program is set to: when the inlet-outlet oil gas concentration difference values monitored by an oil gas concentration instrument I19 and an oil gas concentration instrument II 20 at an oil gas inlet I30 and a tail gas outlet I31 of the tank body I10 are smaller than a set value C1, the electromagnetic valve I1, the electromagnetic valve III 13 and the electromagnetic valve IV 14 are opened, the electromagnetic valve II 12, the electromagnetic valve V15, the electromagnetic valve VI 18 and the electromagnetic valve VII 24 are closed, the tank body I10 is switched to a desorption state, and the tank body II 11 enters an adsorption state; oil gas enters a tank body II 11 under the drive of a fan 16, when the oil gas flows between pores of an adsorbent, hydrocarbon molecules in the oil gas can be adsorbed in the pores and are separated from other gas molecules in the oil gas, a large amount of adsorption heat can be generated due to adsorption, the temperature of the treated tail gas is greatly raised due to the adsorption heat, the tail gas enters a heat exchanger I2 from a tail gas outlet II 33 at the top of the tank body II 11 to exchange heat with desorption gas, the temperature of the desorption gas is raised, when the temperature of the desorption gas monitored by a temperature sensor I8 at a desorption inlet I26 of the tank body I10 exceeds a T2 set value (the adsorption heat is large at the initial stage of adsorption), a PLC (programmable logic controller) sends an action signal, a solenoid valve VIII 25 is opened, high-temperature tail gas is guided out of a part of a tail gas bypass pipeline, and when the temperature of the desorption gas monitored by the temperature sensor I8 is reduced to be, the PLC controller sends an action signal, and the solenoid valve VIII 25 is closed, so that the good desorption effect can be ensured only when desorption gas is in a certain temperature range, and the adsorbent is not damaged at high temperature; when the tail gas is not exhausted from the tail gas bypass pipeline (namely under the condition that the electromagnetic valve VIII 25 is closed), when the temperature of the desorbed gas monitored by the temperature sensor I8 does not reach the set T1 value within the set time (the adsorption heat becomes small at the later stage of adsorption and is not enough to heat the desorbed gas to be more than T1), the PLC controller sends out a control signal (the electromagnetic valve VIII 25 is closed and the temperature value monitored by the temperature sensor I8 does not reach the set value T1 within a certain time), and the electric heater I6 starts to work to enable the desorbed gas to reach the temperature range required by effective desorption; further, the check valve I3 is installed so as not to allow the adsorption off-gas to flow into the tank I10.
When the tank body I10 is in a desorption stage, the electromagnetic valve I1 is opened and closed periodically, the electromagnetic valve I1 is opened for a set time t1, and desorption gas is supplemented into the tank body I10; after the time t1 elapses, the electromagnetic valve I1 is closed for a set time t2, and the electric heater I6 does not work during the closing of the electromagnetic valve I1, so that unnecessary power waste caused by the fact that the electric heater I6 is operated when desorption gas is not introduced is prevented; in the desorption process of the tank I10, the vacuum pump 17 is always operated. The electromagnetic valve I1 is periodically opened and closed, so that the tank body I10 forms a closed space after desorption gas is supplemented, and the vacuum pump 17 can effectively work. When the oil gas concentration instrument V23 detects that the oil gas concentration at the desorption outlet is lower than a set value C2, the tank body I10 finishes desorption, and the vacuum pump 17 stops working at the moment.
Operating mode (2): the process of switching the tank body I10 from the desorption state to the adsorption state is as follows:
as shown in fig. 4, when the inlet and outlet oil gas concentration difference detected by the oil gas concentration meter iii 21 and the oil gas concentration meter iv 22 at the oil gas inlet ii 32 and the tail gas outlet ii 33 of the tank body ii 11 is smaller than the set value C1, the tank body ii 11 is switched from the adsorption state to the desorption state, at this time, the tank body i 10 has completed desorption (the other tank has completely desorbed when adsorption of one tank is finished can be ensured by adjusting the set values C1 and C2), when the tank body ii 11 is switched to the desorption state, the tank body i 10 is switched to the adsorption state, at this time, the electromagnetic valve ii 12, the electromagnetic valve v 15, the electromagnetic valve vi 18 are opened, the electromagnetic valve i 1, the electromagnetic valve iii 13, the electromagnetic valve iv 14, and the electromagnetic valve viii 25 are closed, the electromagnetic valve vii 24 of the tail gas bypass pipeline is the same as the operation principle of the electromagnetic valve viii 25, and the operation principle of the tank body, and will not be described in detail herein.
The detailed description of the present invention is the prior art, and obviously, the above embodiments of the present invention are only examples for clearly illustrating the technical solution of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a novel combination formula vapor recovery system, characterized by: the oil gas recovery system comprises an oil gas adsorption/desorption module I, an oil gas adsorption/desorption module II, an oil gas inlet pipeline, a desorbed oil gas discharge pipeline, a tail gas discharge pipeline and a control module; the oil gas adsorption/desorption module I and the oil gas adsorption/desorption module II are consistent in structure and comprise a tank body I (10), a tank body II (11), a desorption inlet I (26), a desorption outlet I (27), a desorption inlet II (28), a desorption outlet II (29), an oil gas inlet I (30), an oil gas inlet II (32), a tail gas outlet I (31) and a tail gas outlet II (33); the desorption inlet I (26) and the desorption outlet I (27) are horizontally arranged on the side surface of the tank body I (10) in an opposite mode and are uniformly distributed; the desorption inlet II (28) and the desorption outlet II (29) are horizontally arranged on the side surface of the tank body II (11) oppositely and uniformly; the oil gas inlet I (30) and the oil gas inlet II (32) are respectively arranged at the bottoms of the tank body I (10) and the tank body II (11); the tail gas outlet I (31) and the tail gas outlet II (33) are respectively arranged at the tops of the tank body I (10) and the tank body II (11); the oil gas inlet pipeline is provided with a fan (16), an electromagnetic valve II (12), an oil gas concentration instrument I (19), an electromagnetic valve IV (14) and an oil gas concentration instrument III (21) which are connected in sequence; the fan (16), the electromagnetic valve II (12) and the oil-gas concentration instrument I (19) are connected with an oil-gas inlet I (30) of the tank body I (10), and the fan (16), the electromagnetic valve IV (14) and the oil-gas concentration instrument III (21) are connected with an oil-gas inlet II (32) of the tank body II (11); the desorption gas inlet pipeline comprises a solenoid valve I (1), a heat exchanger I (2), an electric heater I (6), a temperature sensor I (8), a solenoid valve VI (18), a heat exchanger II (4), an electric heater II (7) and a temperature sensor II (9) which are sequentially connected, and the desorption gas inlet pipeline is respectively connected with a desorption inlet I (26) of the tank body I (10) and a desorption inlet II (28) of the tank body II (11); the desorption oil gas discharge pipeline comprises an electromagnetic valve III (13), an electromagnetic valve V (15), an oil gas concentration instrument V (23) and a vacuum pump (17), wherein the vacuum pump (17) is connected with the oil gas concentration instrument V (23) in series and is respectively connected with a desorption outlet I (27) of the tank body I (10) and a desorption outlet II (29) of the tank body II (11) through the electromagnetic valve III (13) and the electromagnetic valve V (15); the tail gas discharge pipeline consists of a tail gas main pipeline, a tail gas heat exchange pipeline and a tail gas bypass pipeline, the tail gas main pipeline is respectively connected with a tail gas outlet I (31) and a tail gas outlet II (33) of the tank body I (10) and the tank body II (11), the tail gas heat exchange pipeline and the tail gas bypass pipeline are branched from the tail gas main pipeline, and the tail gas heat exchange pipeline is respectively connected with a heat exchanger I (2) and a heat exchanger II (4) of a desorption gas inlet pipeline.
2. The novel combined oil and gas recovery system as set forth in claim 1, wherein: the pot body I (10) and the pot body II (11) are internally provided with an adsorbent and a metal adsorption bed layer (34), the adsorbent is activated carbon, hydrophobic silica gel or a molecular sieve, the metal adsorption bed layer (34) is a metal grating plate, the metal grating plate is respectively connected with the pot body I (10) and the pot body II (11) through welding, and the width of the metal grating is greater than the diameter of the adsorbent.
3. The novel combined oil and gas recovery system as set forth in claim 1, wherein: the fan (16), the electromagnetic valve II (12), the electromagnetic valve IV (14), the oil gas concentration instrument I (19) and the oil gas concentration instrument III (21) on the oil gas inlet pipeline are all electrically connected with the control module; the fan (16) is a Roots blower.
4. The novel combined oil and gas recovery system as set forth in claim 1, wherein: and the solenoid valve I (1), the solenoid valve VI (18), the temperature sensor I (8) and the temperature sensor II (9) on the desorption gas inlet pipeline are all electrically connected with the control module.
5. The novel combined oil and gas recovery system as set forth in claim 1, wherein: the oil gas concentration instrument V (23), the electromagnetic valve III (13) and the electromagnetic valve V (15) on the desorption oil gas discharge pipeline are electrically connected with the control module; the vacuum pump (17) is a screw vacuum pump.
6. The novel combined oil and gas recovery system as set forth in claim 1, wherein: the tail gas main pipeline is provided with an oil gas concentration instrument II (20) and an oil gas concentration instrument IV (22), the tail gas bypass pipeline is provided with a solenoid valve VII (24) and a solenoid valve VIII (25), one ends of the oil gas concentration instrument II (20) and the oil gas concentration instrument IV (22) are respectively connected with a tail gas outlet I (31) and a tail gas outlet II (33) of the tank body I (10) and the tank body II (11), the other ends of the oil gas concentration instrument II (20) and the oil gas concentration instrument IV (22) are respectively connected with the solenoid valve VII (24) and the solenoid valve VIII (25) on the tail gas bypass pipeline, and the solenoid valve VII (24), the solenoid valve VIII (25) and the oil gas concentration instrument II (20) and the oil gas concentration.
7. The novel combined oil and gas recovery system as set forth in claim 1, wherein: the tail gas heat exchange pipeline is provided with a one-way valve I (3) and a one-way valve II (5) which prevent the adsorbed tail gas from flowing into the tank body I (10) and the tank body II (11).
8. The novel combined oil and gas recovery system as set forth in claim 1, wherein: the number of desorption inlets and desorption outlets on the side surfaces of the tank body I (10) and the tank body II (11) is more than two.
9. The novel combined oil and gas recovery system as set forth in claim 1, wherein: the control module is a PLC controller, and is respectively electrically connected with the oil gas inlet pipeline, the desorption gas inlet pipeline and the tail gas discharge pipeline.
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| CN202021466129.9U CN212581814U (en) | 2020-07-23 | 2020-07-23 | Novel combination formula vapor recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111876191A (en) * | 2020-07-23 | 2020-11-03 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | Novel combined oil gas recovery system and oil gas recovery method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111876191A (en) * | 2020-07-23 | 2020-11-03 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | Novel combined oil gas recovery system and oil gas recovery method |
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