CN111498785A - Oil gas recovery on-line monitoring system - Google Patents
Oil gas recovery on-line monitoring system Download PDFInfo
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- CN111498785A CN111498785A CN202010349306.3A CN202010349306A CN111498785A CN 111498785 A CN111498785 A CN 111498785A CN 202010349306 A CN202010349306 A CN 202010349306A CN 111498785 A CN111498785 A CN 111498785A
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- oil
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- monitoring system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/42—Filling nozzles
- B67D7/54—Filling nozzles with means for preventing escape of liquid or vapour or for recovering escaped liquid or vapour
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/56—Arrangements of flow-indicators, e.g. transparent compartments, windows, rotary vanes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention discloses an oil gas recovery online monitoring system which comprises an oil storage tank, an oiling machine and a P L C online monitoring system, wherein the oiling machine is provided with an oil-gas separation oil gun and an air-liquid ratio collector, an oil pipe of the oil gun is connected with the oil storage tank and is provided with an electromagnetic valve, an air pipe of the oil gun is connected with an oil gas discharge processing device and is provided with a vacuum pump, a flow meter and a pressure sensor, the oil storage tank is connected with an oil discharge device and an air discharge pipe through pipelines, the oil discharge device is provided with an online concentration monitor, the air discharge pipe is provided with the electromagnetic valve and a pipe pressure sensor, an oil way of the oil gas discharge processing device is connected with the oil storage tank, an air discharge way is connected with a discharge pipe, and the discharge pipe is provided with an online concentration detector.
Description
Technical Field
The invention belongs to the technical field of oil gas recovery, and particularly relates to an oil gas recovery online monitoring system.
Background
With the continuous improvement of the economic development level of China, the environmental protection problem is more and more concerned by governments and common people. In order to reduce and control the pollution of oil gas discharged by a gas station to the atmospheric environment, the national environmental protection administration has issued and implemented GB20952-2007 emission Standard of atmospheric pollutants for gas stations in 2007, and it is required that each gas station needs to perform secondary oil gas recovery and reconstruction before 2015, and the gas stations selling gasoline in a year of more than 8000 tons and the gas stations selling gasoline in a city with ozone concentration exceeding standard and having gasoline quantity of more than 5000 tons should be provided with an online detection system.
At present, an oil gas recovery gun is mostly adopted on an oiling machine to recover volatile oil gas in the oiling process, so that the emission of VOCs pollutants can be reduced, and more importantly, safety accidents caused by the volatile oil gas are prevented; however, the conventional oil gas recovery mode only utilizes an oil gas recovery gun for recovery, and is lack of a corresponding monitoring means, so that the state of oil gas recovery at the moment cannot be known, and whether the oil gas ratio meets the requirements of national regulations or not cannot be known; therefore, a system capable of monitoring the oil gas recovery state in real time is needed.
Disclosure of Invention
The invention aims to provide an oil gas recovery on-line monitoring system for detecting the oil gas recovery state in real time.
In order to achieve the purpose, the invention adopts the following technical scheme:
an oil gas recovery online monitoring system comprises an oil storage tank, an oiling machine and a P L C online monitoring system, wherein the oiling machine is provided with an oil gun and a gas-liquid ratio collector which are separated by oil gas, an oil pipe of the oil gun is connected with the oil storage tank and is provided with an electromagnetic valve, an air pipe of the oil gun is connected with an oil gas discharge processing device and is provided with a vacuum pump, a flow meter and a pressure sensor, the oil storage tank is connected with an oil discharge device and an emptying pipe through a pipeline, the oil discharge device is provided with an online concentration monitor, the emptying pipe is provided with the electromagnetic valve and a pipe pressure sensor, an oil way of the oil gas discharge processing device is connected with the oil storage tank, an exhaust way is connected with a discharge pipe, and;
the gas-liquid ratio collector, the electromagnetic valve, the vacuum pump, the flowmeter, the pressure sensor, the concentration on-line monitor, the pipe pressure sensor and the concentration on-line detector are all connected with a P L C on-line monitoring system, and the gas-liquid ratio collector, the flowmeter, the pressure sensor, the concentration on-line monitor, the pipe pressure sensor and the concentration on-line detector are used for analyzing early warning signals and warning signals to realize the on-line monitoring of oil gas recovery.
Further, the P L C online monitoring system comprises a data receiving module, a data storage module, a data analysis module, an instruction sending module, a display unit and an alarm unit;
the data receiving unit is used for receiving data collected by the gas-liquid ratio collector, the flowmeter, the pressure sensor, the concentration online monitor, the pipe pressure sensor and the concentration online detector;
the data storage module is used for storing the received data, the current state information of the electromagnetic valve, historical early warning signals and alarm signals;
the data analysis module is used for analyzing the acquired data and generating a control instruction, an early warning instruction or an alarm instruction;
the instruction sending module is used for sending a control instruction to the vacuum pump or the electromagnetic valve;
the display unit is used for displaying the acquired data and facilitating the checking of management personnel;
the alarm unit is used for giving an alarm according to the alarm instruction so as to prompt staff.
Further, map information of the gas station is stored in a data storage module of the P L C online monitoring system, and when an alarm signal occurs, the position where the alarm occurs can be marked on the map information and displayed by a display unit.
Further, the early warning signals or the warning signals comprise gas-liquid ratio abnormity early warning or warning, oil storage tank zero pressure early warning or warning, oil gun gas pipe critical pressure early warning or warning, oil gas emission processing device concentration standard exceeding warning and oil unloading device concentration standard exceeding early warning or warning.
The invention has the following beneficial effects:
(1) data collected by the gas-liquid ratio collector, the flowmeter, the pressure sensor, the concentration online monitor, the pipe pressure sensor and the concentration online detector can be transmitted to an online detection system in real time, and online detection is realized through storage and analysis of a system;
(2) by setting the map data and marking the alarm position on the map data, the personnel at the corresponding position are informed to operate in time, so that the larger loss is avoided.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
The figure is marked with an oil storage tank 10, an oil filling machine 20, a gas-liquid ratio collector 21, a gas-liquid ratio collector 22, a flowmeter 23, a vacuum pump 30, an oil-gas discharge processing device 31, a discharge pipe 32, an online concentration detector 40, an oil discharge device 41, an online concentration monitor 50, an air discharge pipe 51, an electromagnetic valve 52, a pipe pressure sensor 60, a pressure sensor 70, an air circuit 80, an electric circuit 90 and a P L C online monitoring system.
Detailed Description
As shown in fig. 1, the online monitoring system for oil and gas recovery provided by the present embodiment includes an oil storage tank 10, a fuel dispenser 20, an oil and gas discharge processing device 30, an oil discharge device 40, and a P L C online monitoring system 90.
The oiling machine 20 adopts the oiling machine 20 with an oil-gas separation oil filling gun and an air-liquid ratio collector 21 in the prior art, the air-liquid collector is connected with a circuit, data collected by the air-liquid ratio collector 21 is transmitted to a P L C online monitoring system 90, the P L C online monitoring system 90 realizes air-liquid ratio early warning and alarming according to the data collected by the air-liquid ratio collector 21, the effective air-liquid ratio of each oil filling gun is smaller than 0.85 or larger than 1.35 within 24 hours and seems to exceed 25 percent of the total times, early warning is carried out, and if the oil filling gun is in an early warning state for 5 days continuously, the alarm is carried out immediately.
The oil pipe of the oil gun is connected with the oil storage tank 10 and is provided with a valve, and the valve is used for opening and closing oil filling; the air pipe of the oil gun is connected with an oil gas discharge processing device 30, a vacuum pump 23, a flow meter 22 and a pressure sensor 60 are mounted on the oil gas discharge processing device, the flow meter 22 is used for detecting the content of recovered oil gas and sending a detection value to a gas-liquid ratio collector 21, so that the gas-liquid ratio can be conveniently calculated, the vacuum pump 23 is used for extracting oil gas in an oil tank and effectively preventing the oil gas from volatilizing into the atmosphere, the pressure sensor 60 is used for detecting the pressure in the air pipe and avoiding the breakage of the air pipe caused by excessive accumulated oil gas in the air pipe, the frequency of the pressure in the air pipe outside-1000 Pa to +600Pa in 24 hours exceeds 20% of the total frequency, the early warning is carried out, and the.
The oil storage tank 10 is connected with an oil unloading device 40 and a vent pipe 50 through pipelines, the oil unloading device 40 is specially detected by adopting an oil unloading system, the concentration of the oil unloading device 40 is detected, so that an online concentration monitor 41 is arranged on the oil unloading device 40 and is used for detecting the concentration of an oil unloading area in real time, and early warning is given when the concentration of an oil gas recovery port of the oil unloading device 40 in the oil unloading area exceeds 30% of the lower limit of gas explosion by 2.1% within 24 hours and is continuously carried out for 8 min; and alarming if 3 early warnings appear within 5 days.
The air release pipe 50 is provided with an electromagnetic valve 51 and a pipe pressure sensor 52, when the pipe pressure sensor 52 collects the pressure value in the oil storage tank 10, if the pressure of the oil storage tank 10 is in a range of-50 to 50Pa and the time is continuously over 12 hours, early warning is carried out, and if the pressure is continuously early warned for 5 days, zero pressure warning is carried out; and if the pressure exceeds 20 percent of the total times within 24 hours except the pressure of-1000 Pa to +600Pa, early warning is carried out, and if the pressure is in an early warning state for 3 days continuously, the alarm is immediately given. After receiving the early warning or alarm, the worker can remotely control the electromagnetic valve 51 to open and discharge a certain amount of gas under the condition that other parameters are normal.
The oil way of the oil gas discharge processing device 30 is connected with the oil storage tank 10, the exhaust way 70 is connected with the discharge pipe 31, the concentration online detector 32 is installed on the discharge pipe 31, the oil gas discharge processing device 30 gives an unqualified alarm when discharging, the online concentration detector detects that the concentration of discharged oil gas of the tertiary equipment exceeds 20g/m3, the early warning is carried out, and the alarm is carried out when the concentration of discharged oil gas of the tertiary equipment is continuously monitored for 5 minutes.
The gas-liquid ratio collector 21, the electromagnetic valve 51, the vacuum pump 23, the flow meter 22, the pressure sensor 60, the online concentration monitor 41, the pipe pressure sensor 52 and the online concentration detector 32 are all connected with a P L C online monitoring system 90, and the gas-liquid ratio collector 21, the flow meter 22, the pressure sensor 60, the online concentration monitor 41, the pipe pressure sensor 52 and the online concentration detector 32 are used for collecting data to control the opening or closing of the corresponding electromagnetic valve 51, and early warning signals and warning signals.
The P L C online monitoring system 90 comprises a data receiving module, a data storage module, a data analysis module, an instruction sending module, a display unit and an alarm unit, wherein the data receiving module is used for receiving data collected by the gas-liquid ratio collector 21, the flowmeter 22, the pressure sensor 60, the concentration online monitor 41, the pipe pressure sensor 52 and the concentration online detector 32, the data storage module is used for storing the received data and current state information, historical early warning signals and alarm signals of the electromagnetic valve 51, the data analysis module is used for analyzing the collected data and generating control instructions, early warning instructions or alarm instructions, the instruction sending module is used for sending the control instructions to the vacuum pump 23 or the electromagnetic valve 51, the display unit is used for displaying the collected data and facilitating the checking of managers, and the alarm unit is used for alarming according to the alarm instructions to prompt workers.
Map information of the gas station is stored in a data storage module of the P L C online monitoring system 90, and when an alarm signal occurs, the position where the alarm occurs can be marked on the map information and displayed by a display unit.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention should be covered within the scope of the present invention.
Claims (4)
1. An oil gas recovery online monitoring system is characterized by comprising an oil storage tank (10), an oiling machine (20) and a P L C online monitoring system (90), wherein the oiling machine (20) is provided with an oil-gas separation oil gun and an air-liquid ratio collector (21), an oil pipe of the oil gun is connected with the oil storage tank (10) and is provided with a valve, an air pipe of the oil gun is connected with an oil-gas discharge processing device (30) and is provided with a vacuum pump (23), a flow meter (22) and a pressure sensor (60), the oil storage tank (10) is connected with an oil discharge device (40) and a vent pipe (50) through pipelines, the oil discharge device (40) is provided with an online concentration monitor (41), the vent pipe (50) is provided with an electromagnetic valve (51) and a pipe pressure sensor (52), an oil way of the oil-gas discharge processing device (30) is connected with the oil storage tank (10), a gas discharge way (70) is connected with a discharge pipe (31), and the discharge pipe (31) is provided;
the gas-liquid ratio collector (21), the electromagnetic valve (51), the vacuum pump (23), the flowmeter (22), the pressure sensor (60), the concentration online monitor (41), the pipe pressure sensor (52) and the concentration online detector (32) are all connected with a P L C online monitoring system (90), and the online monitoring of oil gas recovery is realized by analyzing early warning signals and warning signals through data collected by the gas-liquid ratio collector (21), the flowmeter (22), the pressure sensor (60), the concentration online monitor (41), the pipe pressure sensor (52) and the concentration online detector (32).
2. The oil and gas recovery online monitoring system of claim 1, wherein the P L C online monitoring system (90) comprises a data receiving module, a data storage module, a data analysis module, an instruction sending module, a display unit and an alarm unit;
the data receiving unit is used for receiving data collected by the gas-liquid ratio collector (21), the flowmeter (22), the pressure sensor (60), the online concentration monitor (41), the pipe pressure sensor (52) and the online concentration detector (32);
the data storage module is used for storing the received data, the current state information of the electromagnetic valve (51), historical early warning signals and alarm signals;
the data analysis module is used for analyzing the acquired data and generating a control instruction, an early warning instruction or an alarm instruction;
the instruction sending module is used for sending a control instruction to the vacuum pump (23) or the electromagnetic valve (51);
the display unit is used for displaying the acquired data and facilitating the checking of management personnel;
the alarm unit is used for giving an alarm according to the alarm instruction so as to prompt staff.
3. The online monitoring system for oil and gas recovery as claimed in claim 2, characterized in that map information of the gas station is stored in the data storage module of the P L C online monitoring system (90), and when an alarm signal occurs, the position where the alarm occurs can be marked on the map information and displayed by the display unit.
4. The online oil and gas recovery monitoring system according to claim 2 or 3, characterized in that: the early warning signals or the warning signals comprise gas-liquid ratio abnormity early warning or warning, zero pressure early warning or warning of the oil storage tank (10), critical pressure early warning or warning of an oil filling gun gas pipe, concentration standard exceeding warning of the oil gas discharge processing device (30) and concentration standard exceeding early warning or warning of the oil discharge device (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010349306.3A CN111498785A (en) | 2020-04-28 | 2020-04-28 | Oil gas recovery on-line monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010349306.3A CN111498785A (en) | 2020-04-28 | 2020-04-28 | Oil gas recovery on-line monitoring system |
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| CN111498785A true CN111498785A (en) | 2020-08-07 |
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| CN202010349306.3A Pending CN111498785A (en) | 2020-04-28 | 2020-04-28 | Oil gas recovery on-line monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114835079A (en) * | 2022-06-02 | 2022-08-02 | 杭州鼎玺智能技术有限公司 | Closed-loop online oil gas recovery monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114835079A (en) * | 2022-06-02 | 2022-08-02 | 杭州鼎玺智能技术有限公司 | Closed-loop online oil gas recovery monitoring system |
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Application publication date: 20200807 |