CN211837100U - System for controlling oil gas concentration of oil gas collecting pipe network to be stable - Google Patents
System for controlling oil gas concentration of oil gas collecting pipe network to be stable Download PDFInfo
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Abstract
The utility model provides a system for controlling the oil gas concentration stability of an oil gas collection pipe network, which comprises an oil gas collection header pipe connected with an oil gas pipe network, and is characterized by also comprising a draught fan, a regulation and control system and a mixer; the oil gas collecting main pipe is connected with an inlet of the induced draft fan, a first regulating valve is arranged on the oil gas collecting main pipe, and a first flowmeter and a first concentration analyzer are sequentially arranged in front of the first regulating valve; the regulation and control system comprises an adsorption tank; the outlet pipeline of the induced draft fan is provided with two paths, one path is connected with the gas-phase gas inlet at the bottom of the adsorption tank, and the pipeline at the front end of the gas-phase gas inlet at the bottom of the adsorption tank is provided with a third regulating valve; the other path is connected with the inlet of the mixer, a second regulating valve is arranged on a pipeline on the other path, and a second flowmeter is arranged behind the second regulating valve; and a gas-phase outlet at the top of the adsorption tank is connected with an inlet of the mixer through a pipeline, and a third flow meter and a third concentration analyzer are sequentially arranged on the pipeline between the gas-phase outlet at the top of the adsorption tank and the inlet of the mixer.
Description
Technical Field
The utility model relates to a technical field of control oil gas concentration, concretely relates to system that pipe network oil gas concentration is stable is collected to control oil gas.
Background
With the increasing environmental protection requirements, the environmental protection treatment of refinery enterprises has been changed from single pollution source treatment to comprehensive treatment of plant pollution sources, and aiming at the defects of large quantity of environmental protection equipment and large enterprise investment required by single pollution source treatment, the refinery enterprises perform safety risk assessment and then uniformly treat oil gas generated by tank areas, loading vehicles, shipping vehicles and the like meeting the safety requirements after collecting the oil gas through a pipe network. Because the physical property difference of different gas sources is large, oil gas in the process of loading ship and truck has the characteristics of stable flow, concentration variation and slow speed; the oil gas generated by the sewage device has high relevance between the concentration and the flow rate and the outside, and the fluctuation of the concentration and the flow rate of the oil gas is large; the oil tank area produces two kinds of oil gas, the flow of the large breathing oil gas is stable, but the concentration fluctuation is large, and the flow of the small breathing oil gas is large, but the concentration is stable. Current market environmental protection equipment mainly solves the fluctuation problem of absorption processing oil gas concentration through setting up the adsorption tank, but the adsorption material exists that the adsorption efficiency is stronger, normal atmospheric temperature desorption ability is poor characteristics to lead to the oil gas concentration before the adsorption material absorption saturation very low, after the adsorption material absorption saturation, oil gas concentration keeps unanimous with the concentration before adsorbing, loses regulatory function. When the oil gas concentration of a pipe network is low, the method cannot maintain the self-sustaining operation requirement of downstream catalytic oxidation equipment, and needs to supplement large electric quantity to maintain operation. When the oil gas concentration of the pipe network is high, a large amount of dilution air is needed to dilute and then enter the catalytic oxidation device, so that the design scale of the catalytic oxidation device is increased.
SUMMERY OF THE UTILITY MODEL
To the problem that the volatility of oil gas concentration is big, flow unstable, low reaches environmental protection equipment even running pressure is big in the current oil gas collecting pipe network, design a system that control oil gas collecting pipe network oil gas concentration is stable, the utility model discloses can maintain the stability of oil gas concentration in the oil gas pipe network, reduce the influence of concentration fluctuation to low reaches device even running, the regeneration of adsorbing the material has been accomplished to concentration process simultaneously, has both satisfied high concentration gas treatment effect to the long-term continuous operation of assurance device.
The utility model adopts the following technical proposal:
a system for controlling the oil gas concentration stability of an oil gas collecting pipe network comprises an oil gas collecting main pipe connected with the oil gas pipe network, an induced draft fan, a regulation and control system and a mixer;
the oil gas collecting main pipe is connected with an inlet of the induced draft fan, a first regulating valve is arranged on the oil gas collecting main pipe, and a first flowmeter and a first concentration analyzer are sequentially arranged in front of the first regulating valve; the regulation and control system comprises an adsorption tank;
the outlet pipeline of the induced draft fan is provided with two paths, one path is connected with the gas-phase gas inlet at the bottom of the adsorption tank, and the pipeline at the front end of the gas-phase gas inlet at the bottom of the adsorption tank is provided with a third regulating valve; the other path is connected with the inlet of the mixer, a second regulating valve is arranged on a pipeline on the other path, and a second flowmeter is arranged behind the second regulating valve;
and a gas-phase outlet at the top of the adsorption tank is connected with an inlet of the mixer through a pipeline, and a third flow meter and a third concentration analyzer are sequentially arranged on the pipeline between the gas-phase outlet at the top of the adsorption tank and the inlet of the mixer.
Further, still include the gas-liquid separation buffer tank, the export of blender passes through the pipeline and links to each other with the entry of gas-liquid separation buffer tank, is equipped with the second concentration analysis appearance on the pipeline between the export of blender and the entry of gas-liquid separation buffer tank.
Furthermore, the regulation and control system also comprises an inert gas pipe network and a heater, the inert gas pipe network is connected with a gas-phase gas inlet at the bottom of the adsorption tank through the heater, and a fourth regulating valve is arranged between the inert gas pipe network and the heater.
Furthermore, the regulation and control system also comprises a cooler, the cooler is arranged on a pipeline between a gas phase outlet at the top of the adsorption tank and an inlet of the mixer, an inlet of the cooler is connected with the gas phase outlet at the top of the adsorption tank, and an outlet of the cooler is connected with an inlet of the mixer.
Further, the inert gas in the inert gas pipe network is nitrogen.
Further, a top gas phase outlet pipeline of the gas-liquid separation buffer tank is connected with a downstream environment-friendly device thereof, and a bottom liquid phase outlet pipeline of the gas-liquid separation buffer tank is connected with a waste oil pipe network of a plant area.
A process method for controlling the oil gas concentration stability of an oil gas collecting pipe network is implemented based on the system for controlling the oil gas concentration stability of the oil gas collecting pipe network, and comprises the following steps:
(1) when the oil-gas concentration in the oil-gas collecting set is in a reasonable fluctuation interval after the measured value is analyzed by the first concentration analyzer, the first regulating valve and the second regulating valve are opened, the third regulating valve and the fourth regulating valve are closed, and the heater and the cooler are closed;
the oil gas is pressurized by the draught fan and then input into the mixer, then enters the gas-liquid separation buffer tank through the mixer, and is conveyed to the environment-friendly device from a gas phase pipeline at the top of the gas-liquid separation buffer tank, and the condensate at the bottom of the gas-liquid separation buffer tank is conveyed to a sump oil pipe network through a liquid phase outlet at the bottom of the gas-liquid separation buffer tank;
(2) when the concentration of oil gas in the oil gas collecting and gathering block pipe is higher than a designed value through analysis and measurement of a first concentration analyzer, a first regulating valve, a second regulating valve and a third regulating valve are opened, a fourth regulating valve is closed, and a heater and a cooler are closed;
after the oil gas is pressurized by the draught fan, a part of oil gas is input into the mixer, a part of oil gas is subjected to adsorption treatment by the adsorption tank, gas with extremely low concentration is obtained from an outlet at the top of the adsorption tank and is fully mixed with untreated oil gas in the mixer, the mixed oil gas concentration is analyzed by a second concentration analyzer, and when the measured value is in a concentration within a reasonable concentration range, the mixed gas enters a gas-liquid separation buffer tank and is conveyed to an environment-friendly device from a gas phase pipeline at the top of the gas-liquid separation buffer tank, and condensate at the bottom of the gas-liquid separation buffer tank is conveyed to a dirty oil pipeline network;
(3) when the concentration of oil gas in the oil gas collecting and collecting integrated pipe is lower than a designed value through analysis of a first concentration analyzer, the third regulating valve is closed, the first regulating valve, the second regulating valve and the fourth regulating valve are opened, and the heater and the cooler are opened;
inert gas of inert gas pipe network output gets into the adsorption tank bottom after the heater heating, the absorbent in the adsorption tank partial organic matter by high temperature desorption, get into the cooler and cool off to the normal atmospheric temperature together with high temperature inert gas, form high concentration regeneration oil gas, then with the low concentration oil gas that the oil gas collecting main pipe carried and come intensive mixing in the blender, after mixing oil gas concentration is when reasonable concentration interval range concentration through second concentration analysis appearance analysis measuring value, the gas gets into the gas-liquid separation buffer tank after mixing, and carry to environment-friendly device from gas-liquid separation buffer tank top gas phase pipeline, gas-liquid separation buffer tank bottom condensate is carried to the dirty oil pipe network.
Further, in the step (2), the ratio of the adsorbed treatment to the unadsorbed treatment of the oil gas is subjected to proportional operation according to the value A1 of the first concentration analyzer, the value F2 of the second flow meter, the value F3 of the third flow meter and the value A3 of the third concentration analyzer to obtain the switching ratio of the second regulating valve and the third regulating valve, and the value of the second concentration analyzer is used for verifying and feeding back the regulating effect;
the adjusted oil gas concentration target value A is ((F2 × A1) + (F3 × A3)) ÷ (F2+ F3);
F2/F3 ═ a-A3 ÷ (a1-a), which yields the switching ratio of the second control valve to the third control valve.
Further, in the step (3), the ratio of the high-concentration regeneration oil gas to the low-concentration oil gas is subjected to proportional operation according to the value A1 of the first concentration analyzer, the value F2 of the second flow meter, the value F3 of the third flow meter and the value A3 of the third concentration analyzer to obtain the switching ratio of the second regulating valve and the fourth regulating valve, and the regulating effect is verified and fed back through the value of the second concentration analyzer;
the adjusted oil gas concentration target value A is ((F2 × A1) + (F3 × A3)) ÷ (F2+ F3);
F2/F3 ═ a-A3 ÷ (a1-a), which yields the switching ratio of the second control valve to the fourth control valve.
Further, in the step (3), the inert gas is regenerated nitrogen.
The utility model has the advantages that:
the utility model can process a certain proportion of oil gas through the adsorption equipment when the concentration of the oil gas is higher than the design value, and the processed oil gas and the unprocessed oil gas reach the design value of concentration after being mixed; when the concentration of the oil gas is lower than the designed value, the concentrated gas meets the designed concentration value by releasing the adsorbed substances stored in the adsorption equipment and mixing the adsorbed substances with the low-concentration gas. The concentration of oil gas in an oil gas pipeline network can be maintained to be stable, the influence of concentration fluctuation on the stable operation of a downstream device is reduced, and meanwhile, the regeneration of an adsorption material is completed in the concentration process, so that the treatment effect of high-concentration gas is met, and the long-term continuous operation of the device is ensured;
when the concentration of the pipe network fluctuates greatly, the oil gas can be effectively inhibited before reaching the environment-friendly device; by installing a monitoring instrument and designing a reasonable oil-gas circulation path, when the concentration of the main pipe oil gas exceeds a design value, a certain proportion of high-concentration oil gas passes through the adsorption tank and is mixed with unadsorbed oil gas, the gas concentration is reduced to a reasonable range after mixing, and when the relevant concentration is lower than the design value, nitrogen gas of high-temperature regeneration gas passes through the adsorption tank and is mixed with low-concentration oil gas after cooling, and the concentration is increased to the reasonable range; the regeneration of the adsorbent is realized in the concentration process, and the adsorption treatment effect of high-concentration oil gas in the next working section is ensured; the oil gas concentration can be controlled to be maintained in a reasonable concentration range, and the stable operation of a downstream environment-friendly device is ensured.
Drawings
FIG. 1 is a schematic diagram of a system for controlling stability of oil and gas concentration in an oil and gas collection pipe network.
Wherein C-101 is an induced draft fan; AIA-101 is a first concentration analyzer; AIA-102 is a second concentration analyzer; AIA-103 is a third concentration analyzer; FT-101 is a first flow meter; FT-102 is a second flow meter; FT-103 is a third flow meter; v-1 is a first regulating valve; v-2 is a second regulating valve; v-3 is a third regulating valve; v-4 is a fourth regulating valve; v-101 is an adsorption tank; v-102 is a gas-liquid separation buffer tank; e-101 is a heater; e-102 is a cooler; m-101 is a mixer.
Detailed Description
The utility model is described in detail with the following figures:
referring to fig. 1, a system for controlling the oil-gas concentration stability of an oil-gas collection pipe network comprises an oil-gas collection main pipe connected with an oil-gas pipe network, and further comprises a draught fan, a regulation and control system and a mixer;
the oil gas collecting main pipe is connected with an inlet of the induced draft fan, a first regulating valve is arranged on the oil gas collecting main pipe, and a first flowmeter and a first concentration analyzer are sequentially arranged in front of the first regulating valve; the regulation and control system comprises an adsorption tank;
the outlet pipeline of the induced draft fan is provided with two paths, one path is connected with the gas-phase gas inlet at the bottom of the adsorption tank, and the pipeline at the front end of the gas-phase gas inlet at the bottom of the adsorption tank is provided with a third regulating valve; the other path is connected with the inlet of the mixer, a second regulating valve is arranged on a pipeline on the other path, and a second flowmeter is arranged behind the second regulating valve;
and a gas-phase outlet at the top of the adsorption tank is connected with an inlet of the mixer through a pipeline, and a third flow meter and a third concentration analyzer are sequentially arranged on the pipeline between the gas-phase outlet at the top of the adsorption tank and the inlet of the mixer.
As an embodiment, the device further comprises a gas-liquid separation buffer tank, an outlet of the mixer is connected with an inlet of the gas-liquid separation buffer tank through a pipeline, and a second concentration analyzer is arranged on the pipeline between the outlet of the mixer and the inlet of the gas-liquid separation buffer tank.
As one embodiment, the regulation system further comprises an inert gas pipe network and a heater, the inert gas pipe network is connected with a gas-phase gas inlet at the bottom of the adsorption tank through the heater, and a fourth regulating valve is arranged between the inert gas pipe network and the heater.
As an embodiment, the conditioning system further comprises a cooler, the cooler is arranged on a pipeline between the gas phase outlet at the top of the adsorption tank and the inlet of the mixer, the inlet of the cooler is connected with the gas phase outlet at the top of the adsorption tank, and the outlet of the cooler is connected with the inlet of the mixer.
As an embodiment, the inert gas in the inert gas pipe network is nitrogen.
As one embodiment, further, a top gas phase outlet pipeline of the gas-liquid separation buffer tank is connected with a downstream environment-friendly device thereof, and a bottom liquid phase outlet pipeline of the gas-liquid separation buffer tank is connected with a dirty oil pipe network of a plant area.
A process method for controlling the oil gas concentration stability of an oil gas collecting pipe network is implemented based on the system for controlling the oil gas concentration stability of the oil gas collecting pipe network, and comprises the following steps:
(1) when the oil-gas concentration in the oil-gas collecting set is in a reasonable fluctuation interval after the measured value is analyzed by the first concentration analyzer, the first regulating valve and the second regulating valve are opened, the third regulating valve and the fourth regulating valve are closed, and the heater and the cooler are closed;
the oil gas is pressurized by the draught fan and then input into the mixer, then enters the gas-liquid separation buffer tank through the mixer, and is conveyed to the environment-friendly device from a gas phase pipeline at the top of the gas-liquid separation buffer tank, and the condensate at the bottom of the gas-liquid separation buffer tank is conveyed to a sump oil pipe network through a liquid phase outlet at the bottom of the gas-liquid separation buffer tank;
(2) when the concentration of oil gas in the oil gas collecting and gathering block pipe is higher than a designed value through analysis and measurement of a first concentration analyzer, a first regulating valve, a second regulating valve and a third regulating valve are opened, a fourth regulating valve is closed, and a heater and a cooler are closed;
after the oil gas is pressurized by the draught fan, a part of oil gas is input into the mixer, a part of oil gas is subjected to adsorption treatment by the adsorption tank, gas with extremely low concentration is obtained from an outlet at the top of the adsorption tank and is fully mixed with untreated oil gas in the mixer, the mixed oil gas concentration is analyzed by a second concentration analyzer, and when the measured value is in a concentration within a reasonable concentration range, the mixed gas enters a gas-liquid separation buffer tank and is conveyed to an environment-friendly device from a gas phase pipeline at the top of the gas-liquid separation buffer tank, and condensate at the bottom of the gas-liquid separation buffer tank is conveyed to a dirty oil pipeline network;
(3) when the concentration of oil gas in the oil gas collecting and collecting integrated pipe is lower than a designed value through analysis of a first concentration analyzer, the third regulating valve is closed, the first regulating valve, the second regulating valve and the fourth regulating valve are opened, and the heater and the cooler are opened;
inert gas of inert gas pipe network output gets into the adsorption tank bottom after the heater heating, the absorbent in the adsorption tank partial organic matter by high temperature desorption, get into the cooler and cool off to the normal atmospheric temperature together with high temperature inert gas, form high concentration regeneration oil gas, then with the low concentration oil gas that the oil gas collecting main pipe carried and come intensive mixing in the blender, after mixing oil gas concentration is when reasonable concentration interval range concentration through second concentration analysis appearance analysis measuring value, the gas gets into the gas-liquid separation buffer tank after mixing, and carry to environment-friendly device from gas-liquid separation buffer tank top gas phase pipeline, gas-liquid separation buffer tank bottom condensate is carried to the dirty oil pipe network.
As an embodiment, further, in the step (2) of the process method for controlling the oil-gas concentration stability of the oil-gas collection pipe network, the ratio of the adsorbed treatment to the unadsorbed treatment of the oil-gas is subjected to proportional operation according to the value a1 of the first concentration analyzer, the value F2 of the second flow meter, the value F3 of the third flow meter, and the value A3 of the third concentration analyzer to obtain the on-off ratio of the second regulating valve and the third regulating valve, and the value of the second concentration analyzer is used for verifying and feeding back the regulating effect;
the adjusted oil gas concentration target value A is ((F2 × A1) + (F3 × A3)) ÷ (F2+ F3);
F2/F3 ═ a-A3 ÷ (a1-a), which yields the switching ratio of the second control valve to the third control valve.
As an embodiment, further, in the step (3) of the process method for controlling the oil-gas concentration stability of the oil-gas collection pipe network, the ratio of the high-concentration regenerated oil-gas to the low-concentration oil-gas is subjected to proportional operation according to the value a1 of the first concentration analyzer, the value F2 of the second flow meter, the value F3 of the third flow meter and the value A3 of the third concentration analyzer to obtain the on-off ratio of the second regulating valve and the fourth regulating valve, and the regulating effect is verified and fed back through the value of the second concentration analyzer;
the adjusted oil gas concentration target value A is ((F2 × A1) + (F3 × A3)) ÷ (F2+ F3);
F2/F3 ═ a-A3 ÷ (a1-a), which yields the switching ratio of the second control valve to the fourth control valve.
As an embodiment, further, in the step (3) of the process method for controlling the oil gas concentration stability of the oil gas collection pipe network, the inert gas is regenerated nitrogen.
Example 1
When the oil-gas concentration in the oil-gas collecting set is in a reasonable fluctuation interval after the measured value is analyzed by the first concentration analyzer, the first regulating valve and the second regulating valve are opened, the third regulating valve and the fourth regulating valve are closed, and the heater and the cooler are closed;
the oil gas is input to the mixer after the draught fan is supercharged, then enters the gas-liquid separation buffer tank through the mixer, and is conveyed to the environment-friendly device from a top gas phase pipeline of the gas-liquid separation buffer tank, and the condensate at the bottom of the gas-liquid separation buffer tank is conveyed to a sump oil pipe network through a bottom liquid phase outlet of the gas-liquid separation buffer tank.
When the concentration of oil gas in the oil gas collecting and gathering block pipe is higher than a designed value through analysis and measurement of a first concentration analyzer, a first regulating valve, a second regulating valve and a third regulating valve are opened, a fourth regulating valve is closed, and a heater and a cooler are closed;
after the oil gas is pressurized by the draught fan, a part of oil gas is input into the mixer, a part of oil gas is subjected to adsorption treatment by the adsorption tank, the outlet at the top of the adsorption tank obtains gas with extremely low concentration, the gas is fully mixed with untreated oil gas in the mixer, the concentration of the mixed oil gas is in the concentration of a reasonable concentration range by a second concentration analyzer, the mixed gas enters the gas-liquid separation buffer tank and is conveyed to the environment-friendly device from a gas phase pipeline at the top of the gas-liquid separation buffer tank, and condensate at the bottom of the gas-liquid separation buffer tank is conveyed to a dirty oil pipe network. And the proportion of the oil gas subjected to adsorption treatment and non-adsorption treatment is obtained by proportionally adjusting the second adjusting valve and the third adjusting valve according to the second concentration analyzer.
When the concentration of oil gas in the oil gas collecting and collecting integrated pipe is lower than a designed value through analysis of a first concentration analyzer, the third regulating valve is closed, the first regulating valve, the second regulating valve and the fourth regulating valve are opened, and the heater and the cooler are opened;
inert gas of inert gas pipe network output gets into the adsorption tank bottom after the heater heating, the absorbent in the adsorption tank partial organic matter by high temperature desorption, get into the cooler and cool off to the normal atmospheric temperature together with high temperature inert gas, form high concentration regeneration oil gas, then with the low concentration oil gas that the oil gas collecting main pipe carried and come intensive mixing in the blender, after mixing oil gas concentration is when reasonable concentration interval range concentration through second concentration analysis appearance analysis measuring value, the gas gets into the gas-liquid separation buffer tank after mixing, and carry to environment-friendly device from gas-liquid separation buffer tank top gas phase pipeline, gas-liquid separation buffer tank bottom condensate is carried to the dirty oil pipe network. And the flow ratio of the high-concentration regenerated oil gas to the low-concentration oil gas is obtained by adjusting the fourth adjusting valve according to the second concentration analyzer.
Example 2
The operation is the same as in example 1, wherein the inert gas output by the inert gas pipe network is regenerated nitrogen.
Through the utility model discloses a system can restrain oil gas and collect pipe network oil gas concentration and fluctuate by a wide margin, keeps concentration steady, can be applied to the end that pipe network, oil tank loading oil gas collection pipe network, oil refining sewage waste gas collection pipe network, oil shipment gas phase collection pipe network are collected to oil tank field gas phase, realizes that pipe network export oil gas concentration is steady through methods such as concentration early warning, high concentration gas absorption slowly-releasing, low concentration gas regeneration supplement, provides the powerful guarantee for the even running of low reaches device.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (6)
1. A system for controlling the oil-gas concentration stability of an oil-gas collecting pipe network comprises an oil-gas collecting main pipe connected with the oil-gas pipe network, and is characterized by further comprising a draught fan, a regulating system and a mixer;
the oil gas collecting main pipe is connected with an inlet of the induced draft fan, a first regulating valve is arranged on the oil gas collecting main pipe, and a first flowmeter and a first concentration analyzer are sequentially arranged in front of the first regulating valve; the regulation and control system comprises an adsorption tank;
the outlet pipeline of the induced draft fan is provided with two paths, one path is connected with the gas-phase gas inlet at the bottom of the adsorption tank, and the pipeline at the front end of the gas-phase gas inlet at the bottom of the adsorption tank is provided with a third regulating valve; the other path is connected with the inlet of the mixer, a second regulating valve is arranged on a pipeline on the other path, and a second flowmeter is arranged behind the second regulating valve;
and a gas-phase outlet at the top of the adsorption tank is connected with an inlet of the mixer through a pipeline, and a third flow meter and a third concentration analyzer are sequentially arranged on the pipeline between the gas-phase outlet at the top of the adsorption tank and the inlet of the mixer.
2. The system for controlling the oil-gas concentration stability of the oil-gas collection pipe network according to claim 1, further comprising a gas-liquid separation buffer tank, wherein an outlet of the mixer is connected with an inlet of the gas-liquid separation buffer tank through a pipeline, and a second concentration analyzer is arranged on the pipeline between the outlet of the mixer and the inlet of the gas-liquid separation buffer tank.
3. The system for controlling the oil and gas concentration stability of the oil and gas collection pipe network of claim 2, wherein the regulation system further comprises an inert gas pipe network and a heater, the inert gas pipe network is connected with a gas phase gas inlet at the bottom of the adsorption tank through the heater, and a fourth regulating valve is arranged between the inert gas pipe network and the heater.
4. The system of claim 3, wherein the control system further comprises a cooler, the cooler is disposed on a pipeline between the gas phase outlet at the top of the adsorption tank and the inlet of the mixer, the inlet of the cooler is connected to the gas phase outlet at the top of the adsorption tank, and the outlet of the cooler is connected to the inlet of the mixer.
5. The system for controlling the stability of oil and gas concentration in an oil and gas collection pipe network of claim 3, wherein the inert gas in the inert gas pipe network is nitrogen.
6. The system for controlling the oil-gas concentration stability of the oil-gas collection pipe network according to claim 4, wherein a top gas phase outlet pipeline of the gas-liquid separation buffer tank is connected with a downstream environment-friendly device thereof, and a bottom liquid phase outlet pipeline of the gas-liquid separation buffer tank is connected with a dirty oil pipe network of a plant area.
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| CN111111380A (en) * | 2020-02-17 | 2020-05-08 | 青岛诺诚化学品安全科技有限公司 | System and process method for controlling stability of oil gas concentration of oil gas collection pipe network |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111111380A (en) * | 2020-02-17 | 2020-05-08 | 青岛诺诚化学品安全科技有限公司 | System and process method for controlling stability of oil gas concentration of oil gas collection pipe network |
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