阅读说明：本技术 一种加油机渗漏检测及回气故障检测系统 (Oiling machine leakage detection and air return fault detection system ) 是由 王辉 赵邈 田钦 丁兴元 袁博 顾传龙 李梅霜 曹琛 孙雪梅 于 2019-08-29 设计创作，主要内容包括：本申请公开了一种加油机渗漏检测及回气故障检测系统,用以解决现有检测方法不能及时发现并停止渗漏的问题。系统包括数据采集模块、分析模块、检测模块和控制模块。数据采集模块采集加油信息,分析模块根据所述实时油罐液位,计算油罐中液体的实时变化量；检测模块,在所述实时加油量小于实时变化量时,确定加油机存在渗漏；控制模块在加油机存在渗漏时,向加油机发送停止信号,以控制加油机停止加油。本系统可及时检测发现加油机的渗漏问题,并自动停止加油过程,以避免更多的油品渗漏。同时,本系统还可及时检测发现加油机的回气故障问题。(The application discloses tanker aircraft leakage detection and return air fault detection system for solve the problem that current detection method can not discover in time and stop the seepage. The system comprises a data acquisition module, an analysis module, a detection module and a control module. The data acquisition module acquires refueling information, and the analysis module calculates the real-time variable quantity of liquid in the oil tank according to the real-time oil tank liquid level; the detection module is used for determining that the oiling machine leaks when the real-time oiling amount is smaller than the real-time variation amount; and the control module sends a stop signal to the fuel dispenser when the fuel dispenser leaks so as to control the fuel dispenser to stop filling fuel. The system can detect and find the leakage problem of the oiling machine in time and automatically stop the oiling process so as to avoid more oil leakage. Meanwhile, the system can also detect and find the air return fault problem of the oiling machine in time.)

1. The utility model provides an tanker aircraft leakage detection and return-air fault detection system which characterized in that includes:

the data acquisition module is used for acquiring refueling information, wherein the refueling information at least comprises real-time refueling amount and real-time oil tank liquid level;

the analysis module is connected with the data acquisition module and used for calculating the real-time variable quantity of the liquid in the oil tank according to the real-time oil tank liquid level;

the detection module is connected with the data acquisition module and the analysis module and is used for determining that the oiling machine leaks when the real-time oil filling amount is smaller than the real-time variable amount;

and the control module is connected with the detection module and used for sending a stop signal to the oiling machine when the oiling machine leaks so as to control the oiling machine to stop oiling.

2. The system of claim 1, wherein the fueling information further includes a real-time gas return amount;

the detection module is further used for determining that the oiling machine return air pipeline or the return air pump has faults when the ratio of the real-time return air quantity to the real-time oil adding quantity does not meet a preset range.

3. The system of claim 1, wherein the real-time tank levels comprise an initial tank level, a current tank level;

the analysis module is specifically used for calculating the real-time variable quantity of the liquid in the oil tank according to the difference value between the initial oil tank liquid level and the current oil tank liquid level and the pre-stored oil tank bottom area.

4. The system of claim 1, further comprising an alarm module;

and the alarm module is used for sending out an alarm signal when the oiling machine leaks.

5. The system of claim 1, further comprising a monitoring module;

the monitoring module is connected with the data acquisition module, the analysis module and the control module and is used for displaying the oiling information and the real-time variable quantity, and sending a stop signal to the oiling machine according to the operation of a user to control the oiling machine to stop oiling.

6. The system of claim 1, wherein the fueling information includes a fuel dispenser identification;

the detection module is specifically used for determining that the corresponding oiling machine has leakage when the real-time oiling amount corresponding to the oiling machine identification is smaller than the real-time variation amount according to the oiling machine identification.

7. The system of claim 3, wherein the fueling information comprises a gun lift signal;

the data acquisition module is further used for acquiring the initial oil tank liquid level when the gun lifting signal is detected to change.

8. The system of claim 2, wherein the data acquisition module comprises at least a liquid level meter, a gas flow meter;

the liquid level meter is arranged in the oiling machine oil tank and used for detecting the liquid level of the oil tank;

the gas flowmeter is arranged on an air return pipe of the oiling machine and used for detecting the air return amount.

Technical Field

The application relates to the technical field of oiling machine detection, in particular to an oiling machine leakage detection and air return fault detection system.

Background

The regulation of automobile refueling and gas station design and construction standard is as follows: the oil tank manhole operation well, oil drain well, oiling machine bottom groove and other parts with oil-submersible pump may have oil leakage.

Currently, leak detection for fuel dispensers typically takes two forms: firstly, manual detection, namely sand filling treatment is carried out on the oiling machine, and whether the oiling machine leaks or not is judged by observing the characteristics of change of sand color and the like. Secondly, install the leakage detection sensor at the tanker aircraft end basin, the leakage detection sensor can trigger the warning when detecting oil gas concentration and reaching a definite value.

However, both of the above methods have problems. Firstly, the manual detection method has low efficiency and poor timeliness, and needs manpower to realize leakage detection, so that the leakage condition of the oiling machine is difficult to find in time, and oil leakage and environmental pollution can be caused. Secondly, through the leakage detection sensor, can only detect the seepage of tanker aircraft, and can not in time react to the seepage condition of tanker aircraft, also can lead to the oil to reveal like this, the polluted environment.

Disclosure of Invention

The embodiment of the application provides a system for detecting leakage and air return faults of an oiling machine, and is used for solving the problem that the existing detection method cannot find and stop leakage in time.

The application embodiment provides an tanker aircraft leakage detection and return-air fault detection system, includes:

the data acquisition module is used for acquiring refueling information, wherein the refueling information at least comprises real-time refueling amount and real-time oil tank liquid level;

the analysis module is connected with the data acquisition module and used for calculating the real-time variable quantity of the liquid in the oil tank according to the real-time oil tank liquid level;

the detection module is connected with the data acquisition module and the analysis module and is used for determining that the oiling machine leaks when the real-time oil filling amount is smaller than the real-time variable amount;

and the control module is connected with the detection module and used for sending a stop signal to the oiling machine when the oiling machine leaks so as to control the oiling machine to stop oiling.

The embodiment of the application provides an tanker aircraft leakage detection and return-air fault detection system gathers real-time oil filling volume, real-time oil tank liquid level information through data acquisition module, by analysis module according to real-time oil tank liquid level, calculates the real-time variable quantity of liquid in the oil tank. And if the real-time oil filling amount obtained by the comparison of the detection module is smaller than the real-time variable amount, determining that the oiling machine has leakage. The control module can send a stop signal to the oiling machine according to the leakage condition of the oiling machine, and the oiling machine is controlled to stop oiling. Through this tanker aircraft leakage detection and return-air fault detection system, the seepage condition that the tanker aircraft exists is in time detected to the real-time information of refueling of accessible to the automatic urgent process of stopping refueling prevents to cause more oil seepage, prevents to cause the oil seepage to pollute.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.

In the drawings:

figure 1 is a schematic diagram of a leak detection and air return fault detection system for a fuel dispenser according to an embodiment of the present disclosure;

figure 2 is a schematic diagram of another fuel dispenser leak detection and air return fault detection system according to an embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Figure 1 is a schematic structural diagram of a fuel dispenser leak detection and air return fault detection system provided in an embodiment of the present application. As shown in FIG. 1, the system 100 includes a data acquisition module 110, an analysis module 120, a detection module 130, and a control module 140.

The data collection module 110 is used to collect fueling information. The refueling information refers to refueling information during single refueling and can at least comprise data such as real-time refueling amount and real-time oil tank liquid level. Specifically, the data acquisition module 110 may be connected to a fueling pump encoder to obtain real-time fueling amount information by obtaining an output signal of the encoder. The data acquisition module 110 may further include a level gauge, which may be disposed within the refueling tank for detecting a real-time tank level. Wherein, the liquid level meter can adopt a magnetostrictive liquid level meter.

The analysis module 120 is connected to the data acquisition module 110, and is configured to calculate a real-time variation of the liquid in the oil tank according to the real-time oil tank liquid level information from the data acquisition module 110. Specifically, the real-time tank level information collected by the data collection module 110 may include an initial tank level and a current tank level. Wherein the initial tank level indicates the tank level at the beginning of each refuelling process. Since the oil tank is generally shaped as a regular cylinder, the analysis module 120 can determine the height change of the liquid in the oil tank according to the initial oil tank liquid level and the current oil tank liquid level, and determine the volume change of the liquid in the oil tank, i.e. the reduction of the liquid in the oil tank, according to the product of the bottom area and the height change of the oil tank, which are prestored. Therefore, during the refueling process, the analysis module 120 can obtain the current level information of the liquid in the oil tank in real time and calculate the real-time variation information of the liquid in the oil tank.

The detection module 130 is connected to the data acquisition module 110 and the analysis module 120, respectively, and can obtain the real-time fuel charge information and the real-time variation information from the two modules, respectively. The real-time oil filling amount information represents liquid output from an oil gun to equipment to be filled, and the real-time variation information represents real-time variation of the liquid in the oil tank caused by the fact that the oil tank outputs the liquid to the oil gun. Under normal conditions, if the oiling machine does not have the leakage phenomenon, the real-time oil filling amount is equal to the real-time variable amount. That is, the liquid output from the tank, passes entirely through the gun into the equipment to be refueled. However, if the fuel dispenser has a leakage problem, and the liquid leaks during the process of being delivered from the tank to the gun and the device to be refueled, the real-time fuel supply amount delivered by the gun is smaller than the real-time variation amount of the liquid in the tank. Therefore, the detection module 130 may determine that the fuel dispenser has a leakage phenomenon when determining that the obtained value of the real-time fueling amount is smaller than the value of the real-time variation amount.

In addition, the fueling information collected by the data collection module 110 may also include an amount of return gas. The data acquisition module 110 may include a gas flow meter, which may be disposed in the gas return pipe of the fuel dispenser for detecting a real-time gas return amount during the refueling process of the fuel dispenser. The detection module 130 may acquire air return amount data of the fuel dispenser from the data acquisition module 110 during the refueling process, and the detection module 130 may determine air-liquid ratio data of the fuel dispenser according to a ratio of the acquired real-time air return amount data to the real-time refueling amount data.

Because the fuel dispenser is used for supplying pressure by gas in the atmosphere during the process of refueling, the device to be refueled needs to be refueled. Therefore, under the condition that the fuel dispenser normally works, the ratio (namely, the gas-liquid ratio) between the return air quantity and the fuel feeding quantity of the fuel dispenser in each fuel feeding process is within a certain numerical range.

Therefore, the detection module 130 can determine whether the equipment such as the air return line of the fuel dispenser has a fault according to the preset range and the determined gas-liquid ratio data of the fuel dispenser in the fuel filling process. If the gas-liquid ratio of the fuel dispenser detected by the detection module 130 is within a preset range, the fuel dispenser is indicated to work normally. If the gas-liquid ratio detected by the detection module 130 is not within the preset range, it may be determined that a failure such as poor gas tightness exists at a gas return line or a gas return pump of the fuel dispenser. Wherein the predetermined range may be 0.9 to 1.3. Faults in the return air line or the return air pump of the fuel dispenser may include the return air pump running too fast or too slow, resulting in too high or too low a gas-liquid ratio, the return air line leaking, resulting in too low a gas-liquid ratio, etc.

Further, the fueling information collected by the data collection module 110 may also include a gun lift signal. The gun lifting signal represents a corresponding signal generated by the oiling machine mainboard aiming at the state of the oil gun. Specifically, when the gun is attached to the fuel dispenser and not removed from the fuel dispenser, the voltage corresponding to the gun-lifting signal is at a low level, and when the gun is removed from the fuel dispenser, the voltage corresponding to the gun-lifting signal is at a high level. Thus, during fueling, the data acquisition module 110 may determine that the user has removed the fuel gun and is about to begin fueling when it detects that the voltage of the gun lift signal has changed to a high level. The data collection module 110 may then, at this point, use the tank level detected by the level gauge as the initial tank level.

Furthermore, since the gun lifting signal voltages corresponding to different models of fuel dispensers may be different, in the embodiment of the present application, the gun lifting signal voltage may be configured through the photoelectric isolation and power switch switching circuit and the dial switch, so that the data acquisition module 110 may identify gun lifting signals of different voltage levels, such as 3V, 5V, 12V, and the like. Therefore, the oiling machine leakage detection and air return fault detection system can be adapted to oiling machines of different models, and realizes leakage detection of oiling machines of different models, so that the compatibility of the system is improved.

In the embodiment of the present application, the data acquisition module 110 may obtain real-time fuel filling amount information during the fuel filling process, and the analysis module 120 may obtain real-time variation information of the liquid during the fuel filling process. Therefore, the detection module 130 can perform real-time judgment and comparison of the constantly changing real-time fuel filling amount and the real-time changing amount according to the data acquired in real time, and can find out the leakage problem of the fuel dispenser in time.

In the prior art, when the leakage detection sensor determines the leakage condition of the oiling machine by detecting the concentration of oil gas, if the existing leakage condition is slight, the leakage detection sensor can not detect the existing leakage condition through one-time oiling process, and the accumulation of the oiling process for many times is needed to reach the detection range of the leakage detection sensor. Compared with the prior art, the embodiment of the application judges the leakage problem of the oiling machine through the comparison of the real-time oil adding amount and the real-time variable amount, and can detect whether the oiling machine has leakage or not through slight difference, thereby accurately detecting the oiling process at every time and improving the accuracy and timeliness of the detection process.

Control module 140, coupled to detection module 130, may obtain information from detection module 130 that a leak exists at the fuel dispenser. The control module 140 may then send a stop signal (i.e., a gun-hang signal) to the fuel dispenser upon determining that a leak exists at the fuel dispenser to control the fuel dispenser to stop fueling to avoid further fuel leakage.

In the embodiment of the present application, the detection module 130 in the system can detect the leakage of the fuel dispenser in time by comparing the real-time fuel filling amount with the real-time variation of the liquid in the oil tank, and find out the problem of oil leakage in time, so that the system has strong timeliness. The control module 140 may send a stop signal to the fuel dispenser in time to stop the fueling process of the fuel dispenser upon determining that a leak exists at the fuel dispenser based on the detection information from the detection module 130 to avoid further leakage of fuel. Through this kind of mode, reduced the reliance to manpower, accessible automated inspection in time discovers the seepage condition of tanker aircraft to take measures to stop the process of refueling of tanker aircraft automatically, in order to avoid more oil seepage, prevent that the leakage pollution from appearing in the filling station.

In addition, a gas flow meter is arranged in the system, and the gas-liquid ratio of the oiling machine can be monitored in real time through the detection of the return gas amount by the gas flow meter and the detection of the real-time oil filling amount of the oiling machine by the detection module 130, so as to detect whether faults such as poor air tightness exist in equipment such as a return gas pipeline and a return gas pump of the oiling machine. The air return fault detection method is simple in design and easy to realize, the system can simultaneously realize the detection of the leakage of the oiling machine and the detection of the air return fault through the detection module, the fault detection function of the oiling machine is enhanced, and the safety guarantee of the oiling machine is favorably improved.

In addition, the system may also include an alarm module. The alarm module may be coupled to the detection module 130 and may send a signal to the alarm module when the detection module 130 determines that a leak exists at the fuel dispenser, the alarm module sending an alarm signal to alert the user. Wherein, the alarm signal can be a prompt tone, a prompt lamp and the like.

In addition, the system may also include a monitoring module. The monitoring module can be connected with the data acquisition module 110 and the analysis module 120, respectively receive the data of the oiling information, the real-time variation information and the like from the two modules, and display the data to the user in the forms of imaging, tabulation and the like, so that the user can monitor various real-time data of the oiling machine in each oiling process in real time, and judge possible faults of the oiling machine by virtue of manual experience. And the monitoring module can also manually send a stop signal to the oiling machine to stop the oiling process of the oiling machine when the oiling machine leaks under the operation of a user. Through setting up monitoring module, can increase the safety guarantee in the aspect of the manual work again on mechanical automation's basis, make the user can master each item data of tanker aircraft in real time, further guarantee can in time discover and stop the seepage condition of tanker aircraft, improve the reliability of system.

In addition, the fueling information collected by the data collection module 110 may also include a fuel dispenser identification. In the oiling machine leakage detection system, a plurality of oiling machines can be stored, and each oiling machine corresponds to one oiling machine identifier respectively. The fueling information collected by the data collection module 110 carries a corresponding fuel dispenser identifier. Accordingly, the detection module 130 may determine the real-time fueling amount and the real-time variation corresponding to the fueling machine identifier according to the fueling machine identifier in the fueling information, and compare the real-time fueling amount with the real-time variation. And if the real-time oil filling amount is less than the real-time variable amount, indicating that the oiling machine corresponding to the oiling machine identifier has leakage. Through the oiling machine identification, the system can simultaneously detect a plurality of oiling machines, and when leakage is found, the system is prepared to determine which specific oiling machine has leakage, so that the reliability of the system is improved.

In the embodiment of the application, the working flow of the system for detecting the leakage and the air return fault of the oiling machine is as follows:

firstly, in the process of continuously detecting a gun lifting signal of the oiling machine, if the gun lifting signal is detected to be changed into a high level, the data acquisition module can judge that a user carries out gun lifting action. The data acquisition module may then send a signal to the monitoring module to prompt the start of the fueling process.

Secondly, the data acquisition module acquires the oil tank liquid level at the beginning of the refueling process as the initial oil tank liquid level. In the next oiling process, the data acquisition module can acquire the real-time oil adding amount of the oil gun through the output signal of the oiling machine encoder; acquiring the current liquid level of the oil tank through a liquid level meter in the oil tank; and acquiring the gas return amount in the refueling process through the gas flowmeter. The monitoring module can acquire information such as initial oil tank liquid level, oil filling amount and current oil tank liquid level from the data acquisition module and display the information in real time.

In the process, the analysis module can acquire the initial oil tank liquid level, the current oil tank liquid level and the real-time oil filling amount from the data acquisition module in real time. The analysis module can calculate the real-time variable quantity information of the oil tank liquid according to the initial oil tank liquid level and the current oil tank liquid level. And the detection module can compare the real-time oil adding amount with the real-time variable amount, and if the real-time oil adding amount is inconsistent with the real-time variable amount, the leakage of the oiling machine is judged.

In addition, the detection module can also determine the ratio of the real-time air return amount to the real-time oil adding amount, namely the air-liquid ratio. The detection module can judge that faults such as poor air tightness exist at positions such as an air return pipeline and an air return pump of the oiling machine when the gas-liquid ratio does not meet the preset range according to the preset range and the determined gas-liquid ratio.

Finally, the control module can send a gun hanging signal (namely a stop signal) to the oiling machine mainboard under the condition that the oiling machine leaks, and the oiling process is cut off emergently to prevent more oil leakage. Meanwhile, the alarm module can send out an alarm signal to prompt a user.

Figure 2 is a schematic diagram of another fuel dispenser leak detection and air return fault detection system according to an embodiment of the present disclosure.

In one possible implementation, as shown in figure 2, a fuel dispenser leak detection and return air fault detection system may include a fuel dispenser device 210, a tank farm device 220, and a monitoring terminal 230.

The fuel dispenser device 210 includes a data collector 211, and the data collector 211 may be disposed within the fuel dispenser electrical layers, including the housing and the collection circuit board. The housing of the data collector 211 may be made of stainless steel to facilitate heat dissipation. The shell surface can be provided with a plurality of louvres to, the louvre can take the symmetrical design that accords with the air flow principle to be favorable to inside and outside air temperature rapid balance, be favorable to the heat dissipation, avoid gathering the circuit board temperature rise too big, prevent that high temperature from causing the circuit to damage, improve the circuit safety of gathering the circuit board. The collection circuit board can adopt the design of four-layer board, fixes on the shell through the copper stand. The acquisition circuit board can be connected with a fuel filling pump encoder 212 of the oiling machine mainboard, so that the fuel filling amount information can be acquired by acquiring the output signal of the encoder 212. The acquisition circuit board can also acquire an oil gun extraction signal through the oiling machine mainboard. And, the collecting circuit board can also be connected with a gas flowmeter 213 to obtain the return air volume information. Wherein, each connector of the acquisition circuit board can be a crimping type wiring terminal so as to facilitate wiring. Meanwhile, the collection circuit board may be further connected to the monitoring terminal 230 to perform real-time communication with the monitoring terminal 230, transmit data to the monitoring terminal 230, and receive an instruction sent by the monitoring terminal 230. Wherein, the data collector 211 can be fixed by the magic tape.

The gas flow meter 213 may be disposed between the fuel dispenser return line and the suction pump and consists of a probe portion and a six-core shielded cable. Specifically, the probe part can comprise a stainless steel metal block, two high-precision platinum resistors, a locking structure (a locking nut, a locking pad and a locking cone wedge) and the like, the six-core shielded cable can be connected with the platinum resistors by adopting a three-wire connection method, the probe part is locked and led out by using a stainless steel locking joint and then is connected to a corresponding terminal of the data acquisition unit 211 in a pressure welding mode through an explosion-proof wiring tube. The gas flow meter 213 is made of a stainless steel housing, and has good corrosion resistance and thermal stability. And moreover, the high-precision platinum resistor is adopted, a three-wire connection method is adopted, the temperature measurement precision is high through the control of a constant current circuit, and the detection precision of the corresponding gas volume is high.

The tank farm equipment 220 may include a liquid level gauge 221. The liquid level meter 221 may be disposed in the oil tank, and may specifically adopt a magnetostrictive liquid level meter, and is connected to the monitoring terminal 230 through a 4-core shielded cable.

The monitoring terminal 230 may be installed indoors, and may be a split design, including two parts, namely, a controller 231 and a touch console 232. The controller 231 is connected to the information collector 211 of the fuel dispenser device 210 and the level gauge 221 of the tank farm device 220, and receives data such as fueling information collected by the information collector 211 and the level gauge 221. In addition, the controller 231 may perform data analysis on the acquired data to determine whether the oil dispenser has a failure problem such as oil leakage and poor air tightness. The specific data analysis process and principle are the same as the working process of the analysis module and the detection module, and are not described herein again. The touch control console 232 is connected with the controller 231 through a network and is used for displaying information such as oil filling amount, oil tank liquid level and variation in real time. Also, the touch console 232 may transmit an instruction to the controller 231 according to an operation of the user, so that the controller 231 transmits the instruction to the corresponding device. For example, the controller sends a stop command to the fuel dispenser motherboard to stop the fuel dispenser from dispensing fuel, and so on. The controller 231 may be connected to the information collector 211 and the liquid level meter 221 by a wired connection or a wireless connection. For example, the liquid level meter is connected with the controller through a 4-core belt shielding cable, and the information collector is connected with the controller through a super-five type network cable.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.