Oil-submerged pump control cabinet monitoring and refueling device

Abstract

The utility model relates to the technical field of gas station safety monitoring, in particular to an oil-submerged pump control cabinet monitoring and refueling device which comprises an oil pump, a first current and voltage monitoring assembly and a monitoring assembly. Wherein the oil pump is connected with the power supply through a first circuit; the first current and voltage monitoring assembly is arranged on the first circuit and used for monitoring current and voltage on the first circuit; and the monitoring assembly is in signal connection with the first current and voltage monitoring assembly and is used for displaying the current and voltage information on the first circuit monitored by the first current and voltage monitoring assembly, or judging and displaying the equipment operation state according to the current and voltage information. The problems that in the prior art, operation state monitoring and abnormal alarm monitoring and processing cannot be carried out on oil-submerged pump and oiling machine equipment in real time, so that only field personnel know problems of field equipment, a unified supervision platform cannot be notified in the first time, and safety emergency management is single can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil filling station safety monitoring technical field, concretely relates to an oil submersible pump control cabinet monitoring and oil filling device. BACKGROUND

[0002] In the oil filling station retail field, the oil submersible pump control cabinet is a core control equipment for controlling the operation of the oil submersible pump, so that the oil in the oil tank is injected into the vehicle tank through the oil gun through the oil pipeline.

[0003] The conventional oil submersible pump control cabinet is composed of mechanical electrical elements and does not have informatization and digitization capabilities, cannot perform real-time operation state monitoring and abnormal alarm monitoring and processing on the oil submersible pump and the oil filling machine equipment, if the on-site equipment has a problem, only the on-site personnel know, cannot notify the unified supervision platform in the first time, and the safety emergency management is single. UTILITY MODEL CONTENT

[0004] In view of the defects in the prior art, the utility model aims at providing an oil submersible pump control cabinet monitoring and oil filling device, which can solve the problem that the oil submersible pump and the oil filling machine equipment cannot be monitored and processed in real time in the prior art, the on-site equipment has a problem, only the on-site personnel know, cannot notify the unified supervision platform in the first time, and the safety emergency management is single.

[0005] To achieve the above purpose, the utility model takes the technical scheme that:

[0006] On the one hand, the utility model provides an oil filling device, characterized by comprising:

[0007] An oil pump is connected with a power supply through a first circuit;

[0008] A first current voltage monitoring component is arranged on the first circuit and used for monitoring the current voltage on the first circuit;

[0009] A monitoring component is signal connected with the first current voltage monitoring component and used for displaying the current voltage information on the first circuit monitored by the first current voltage monitoring component or displaying the equipment operation state obtained according to the current voltage information.

[0010] In some optional schemes, an oil pump breaker and an alternating current contactor are sequentially arranged on the first circuit from the power supply to the oil pump, and the first current voltage monitoring component comprises:

[0011] A first current signal collector is arranged on the first circuit between the oil pump breaker and the alternating current contactor;

[0012] A first voltage signal collector is arranged on the first circuit between the AC contactor and the oil pump.

[0013] A second voltage signal collector is arranged on the first circuit between the oil pump circuit breaker and the AC contactor.

[0014] In some optional schemes, the refueling device further comprises a refueling machine connected with the power supply through a second circuit, the refueling machine is connected with the AC contactor through a control circuit, the control circuit comprises a third circuit for connecting the AC contactor and a power supply end of the refueling machine, a refueling gun auxiliary contact switch is arranged on the third circuit, the refueling gun auxiliary contact switch is closed when the refueling gun is lifted, and the refueling gun auxiliary contact switch is connected with the monitoring assembly.

[0015] In some optional schemes, the refueling gun auxiliary contact switch is connected with the monitoring assembly through a refueling gun signal collector, the refueling gun signal collector is used for collecting the opening and closing signals of the refueling gun auxiliary contact switch and transmitting the signals to the monitoring assembly.

[0016] In some optional schemes, an emergency power-off switch is arranged on the refueling machine, and a second current and voltage monitoring assembly is arranged on the second circuit and used for monitoring the current and voltage on the second circuit and connected with the monitoring assembly.

[0017] In some optional schemes, the second current and voltage monitoring assembly comprises a second current signal collector and a third voltage signal collector arranged on the second circuit.

[0018] In another aspect, the utility model also provides a kind of submersible pump control cabinet monitoring device, it is characterized in that, comprising:

[0019] A first current and voltage monitoring assembly is arranged on a first circuit connecting the oil pump and the power supply to monitor the current and voltage on the first circuit.

[0020] A monitoring assembly is connected with the first current and voltage monitoring assembly and used for displaying the current and voltage information on the first circuit monitored by the first current and voltage monitoring assembly or the equipment operating state obtained according to the current and voltage information and displaying.

[0021] In some optional schemes, the first current and voltage monitoring assembly comprises:

[0022] A first current signal collector is arranged between the oil pump circuit breaker and the AC contactor on the first circuit.

[0023] A first voltage signal collector is arranged on the first circuit between the AC contactor and the oil pump.

[0024] A second voltage signal collector is arranged on the first circuit between the oil pump circuit breaker and the AC contactor.

[0025] In some optional schemes, the submersible pump control cabinet monitoring device further comprises a second current voltage monitoring assembly arranged on a second circuit for connecting the oiling machine with the power supply, for monitoring the current voltage on the second circuit, and being signal connected with the monitoring assembly.

[0026] In some optional schemes, the second current voltage monitoring assembly comprises a second current signal collector and a third voltage signal collector arranged on the second circuit.

[0027] Compared with the prior art, the utility model has the advantages that: by setting the first current voltage monitoring assembly on the first circuit connecting the oil pump with the power supply, the current voltage on the first circuit is monitored, and the monitored current voltage information on the first circuit is uploaded to the monitoring assembly, the monitoring assembly displays the current voltage information monitored by the current voltage monitoring assembly, or displays the equipment running state obtained according to the current voltage information. Remote monitoring of whether the oil pump is abnormal can be realized, when there is a fault on site, the fault information cannot be reported in time, and the safety of the on-site equipment can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 It is a schematic diagram of the oil pump circuit in the embodiment of the utility model;

[0030] Figure 2 It is a schematic diagram of the oiling machine circuit in the embodiment of the utility model;

[0031] Figure 3 It is a schematic diagram of the setting of the auxiliary contact switch of the oiling gun in the embodiment of the utility model;

[0032] Figure 4 It is a signal transmission schematic diagram of the entire oiling device in the embodiment of the utility model.

[0033] In the drawing: 1, oil pump; 2, oil pump circuit breaker; 3, AC contactor; 41, first current signal collector; 42, first voltage signal collector; 43, second voltage signal collector; 5, oiling machine; 61, second current signal collector; 62, third voltage signal collector; 7, oiling machine circuit breaker. DETAILED DESCRIPTION

[0034] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0035] The embodiments of the present application will be described in further detail below with reference to the drawings.

[0036] As shown in Figure 1 and Figure 4 , in one aspect, the present application provides an oil filling device, comprising: an oil pump 1, a first current and voltage monitoring assembly and a monitoring assembly. Wherein the oil pump 1 is connected with a power supply through a first circuit; the first current and voltage monitoring assembly is arranged on the first circuit, for monitoring the current and voltage on the first circuit; the monitoring assembly is signal connected with the first current and voltage monitoring assembly, for displaying the current and voltage information on the first circuit monitored by the first current and voltage monitoring assembly, or the device running state obtained according to the current and voltage information and displaying.

[0037] In the present application, the first current and voltage monitoring assembly is arranged on the first circuit connecting the oil pump 1 and the power supply, for monitoring the current and voltage on the first circuit, and uploading the monitored current and voltage information on the first circuit to the monitoring assembly, and the monitoring assembly displays the current and voltage information monitored by the current and voltage monitoring assembly, or the device running state obtained according to the current and voltage information and displaying. Remote monitoring of whether the oil pump 1 is abnormal can be realized, and when there is a fault on site, the fault information cannot be reported in time, which can improve the safety of the on-site device.

[0038] When there are multiple oil pumps 1, one current and voltage monitoring assembly can be configured for each oil pump 1, and the current and voltage information monitored by all the current and voltage monitoring assemblies can be transmitted to the monitoring assembly, so that centralized monitoring of multiple oil filling stations can be realized. The monitoring assembly can be a display screen, which displays the monitored voltage and current data in real time; in this example, the monitoring assembly includes an embedded edge computing device and an upper computer, the embedded edge computing device is used to judge the running state of the device according to the current and voltage detected by the first current and voltage monitoring assembly, that is, to judge the running state of the oil pump 1, and to transmit the judgment result to the upper computer, and the upper computer is used to store and display the judgment result of the embedded edge computing device. When the monitored current and / or voltage is abnormal, an alarm is given to deal with the abnormal situation in time.

[0039] In this example, the oil pump 1 is a submersible pump.

[0040] Preferably, the first circuit is provided with the oil pump breaker 2 and the AC contactor 3 in sequence from the power supply to the oil pump 1, and the first current and voltage monitoring assembly comprises a first current signal collector 41, a first voltage signal collector 42 and a second voltage signal collector 43. The first current signal collector 41 is arranged on the first circuit between the oil pump breaker 2 and the AC contactor 3; the first voltage signal collector 42 is arranged on the first circuit between the AC contactor 3 and the oil pump 1; and the second voltage signal collector 43 is arranged on the first circuit between the oil pump breaker 2 and the AC contactor 3.

[0041] In this example, the oil pump breaker 2 functions to cut off and connect the load circuit, and cut off the fault circuit to prevent the accident from expanding and ensure safe operation. The AC contactor 3 functions to receive the gun lifting signal and start the submersible pump.

[0042] Therefore, the line layout is that the incoming line end of the oil pump breaker 2 is connected to the power supply incoming line, the outgoing line end of the oil pump breaker 2 is connected to the AC contactor 3 power supply incoming line, and the outgoing line end of the AC contactor 3 is connected to the submersible pump.

[0043] When operating normally, the oil pump breaker 2 is closed, and the AC contactor 3 is controlled by the gun lifting / hanging signal to start / stop the submersible pump. When being maintained, the oil pump breaker 2 is opened, and the AC contactor 3 and the oil pump are in a power-off state, and the gun lifting / hanging signal is invalid.

[0044] Based on the above settings, whether the first current signal collector 41, the first voltage signal collector 42 and the second voltage signal collector 43 can collect corresponding signals can determine whether the oil pump 1 and the monitoring assembly are faulty, in a maintenance state, or in a normal state.

[0045] According to the arrangement positions of the oil pump breaker 2 and the AC contactor 3 on the first circuit, the current and voltage signals at different positions on the first circuit are different in different operating states of the oil pump 1 and the monitoring assembly.

[0046] Submersible pump standby state: no gun lifting signal, no current signal at the outgoing line end of the oil pump breaker 2, and voltage signal at the incoming line end of the AC contactor 3.

[0047] Submersible pump operating state: gun lifting signal, current signal at the outgoing line end of the oil pump breaker 2, and voltage signal at the outgoing line end of the AC contactor 3.

[0048] Submersible pump start-up fault: gun lifting signal, no current signal at the outgoing line end of the oil pump breaker 2, and voltage signal at the outgoing line end of the AC contactor 3.

[0049] Submersible pump maintenance state: in the maintenance state, the oil pump breaker 2 is opened, and there is no voltage signal at the incoming line end of the AC contactor 3; in the working state, the oil pump breaker 2 is closed, and there is voltage signal at the incoming line end of the AC contactor 3.

[0050] AC contactor 3 not closed fault: there is a gun lifting signal, the AC contactor 3 inlet has a voltage signal, and the outlet has no voltage signal.

[0051] AC contactor 3 not open fault: there is no gun lifting signal, and the AC contactor 3 inlet has both a voltage signal and a current signal.

[0052] Specifically, when the oil gun is lifted from the oil dispenser:

[0053] (1) If the first circuit and the oil pump 1 are normal, the oil pump circuit breaker 2 is closed, and the AC contactor 3 is also in a closed state, at this time, the first current signal collector 41, the first voltage signal collector 42 and the second voltage signal collector 43 can collect the corresponding signals.

[0054] If there is an abnormal condition, the corresponding signals can be collected by the first current signal collector 41, the first voltage signal collector 42 and the second voltage signal collector 43 to determine whether the oil pump 1 and the monitoring assembly have a fault or are in a maintenance state, for example:

[0055] (2) If the first voltage signal collector 42 and the second voltage signal collector 43 can collect voltage signals, but the first current signal collector 41 does not collect current signals, it indicates that the oil pump 1 has a start-up fault and the oil pump 1 is in a circuit breaking state.

[0056] (3) If the second voltage signal collector 43 can collect voltage signals, the first current signal collector 41 can collect current signals, but the first voltage signal collector 42 does not collect voltage signals, it indicates that the AC contactor 3 has a fault or the monitoring assembly has a fault.

[0057] (4) If the second voltage signal collector 43 can collect voltage signals, the first current signal collector 41 and the first voltage signal collector 42 do not collect corresponding signals, it indicates that the AC contactor 3 has a fault but the monitoring assembly is normal.

[0058] (5) If the first current signal collector 41 can collect current signals, the first voltage signal collector 42 can collect voltage signals, but the second voltage signal collector 43 does not collect voltage signals, it indicates that it is in a maintenance state and the monitoring assembly has a fault.

[0059] (6) If the first voltage signal collector 42 can collect voltage signals, but the first current signal collector 41 and the second voltage signal collector 43 do not collect corresponding signals, it indicates that it is in a maintenance state and the monitoring assembly has a fault.

[0060] (7) If the first current signal collector 41 can collect the current signal, but the first voltage signal collector 42 and the second voltage signal collector 43 do not collect the corresponding signal, it indicates that the maintenance state, and the monitoring component failure.

[0061] (8) If the first current signal collector 41, the first voltage signal collector 42 and the second voltage signal collector 43 do not collect the corresponding signal, it indicates that the maintenance state, and the monitoring component is normal.

[0062] When the fuel gun is not lifted from the oiling machine:

[0063] (9) If the first current signal collector 41, the first voltage signal collector 42 and the second voltage signal collector 43 can collect the corresponding signal, it indicates that the oil pump abnormally runs, and the AC contactor 3 is not disconnected.

[0064] (10) If the first voltage signal collector 42 and the second voltage signal collector 43 can collect the voltage signal, but the first current signal collector 41 does not collect the current signal, it indicates that the AC contactor 3 is faulty or the monitoring component is faulty.

[0065] (11) If the second voltage signal collector 43 can collect the voltage signal, the first current signal collector 41 can collect the current signal, but the first voltage signal collector 42 does not collect the voltage signal, it indicates that the AC contactor 3 is faulty or the monitoring component is faulty.

[0066] (12) If the second voltage signal collector 43 can collect the voltage signal, the first current signal collector 41 and the first voltage signal collector 42 do not collect the corresponding signal, it indicates that the oil pump standby state.

[0067] (13) If the first current signal collector 41 can collect the current signal, the first voltage signal collector 42 can collect the voltage signal, but the second voltage signal collector 43 does not collect the voltage signal, it indicates that the maintenance state, and the monitoring component failure.

[0068] (14) If the first voltage signal collector 42 can collect the voltage signal, but the first current signal collector 41 and the second voltage signal collector 43 do not collect the corresponding signal, it indicates that the maintenance state, and the monitoring component failure.

[0069] (15) If the first current signal collector 41 can collect the current signal, but the first voltage signal collector 42 and the second voltage signal collector 43 do not collect the corresponding signal, it indicates that the maintenance state, and the monitoring component failure.

[0070] (16) If the first current signal collector 41, the first voltage signal collector 42 and the second voltage signal collector 43 do not collect corresponding signals, it indicates that the maintenance state is in the monitoring component normal state.

[0071] As shown in Figure 2 some optional embodiments, the refueling device further comprises a refueling machine 5 connected with the power supply through a second circuit, and the refueling machine 5 is connected with the AC contactor 3 through a control circuit, for controlling the opening and closing of the AC contactor 3 according to the gun lifting action.

[0072] In this example, the refueling machine 5 is provided with a display screen for displaying the refueling amount and the amount. And the position for placing the refueling gun is set, when the refueling gun is lifted or hung, the control member on the control circuit can be triggered, so that the control circuit can control the opening and closing of the AC contactor 3 according to the gun lifting action.

[0073] The refueling machine 5 is connected with the AC contactor 3 through the control circuit, when the refueling gun is lifted, the refueling machine 5 supplies power to the AC contactor 3 through the control circuit, so that the AC contactor 3 is closed; when the refueling gun is placed on the refueling machine 5, the refueling machine 5 disconnects the power supply of the AC contactor 3 through the control circuit, and the AC contactor 3 is disconnected.

[0074] Preferably, the control circuit comprises a third circuit for connecting the AC contactor 3 and the power supply end of the refueling machine 5, and the third circuit is provided with a refueling gun auxiliary contact switch, which is closed when the gun is lifted and is connected with the monitoring component signal.

[0075] In this embodiment, the refueling gun auxiliary contact switch is set at the position for placing the refueling gun on the refueling machine 5, when the refueling gun is placed, the refueling gun auxiliary contact switch is disconnected, the refueling machine 5 disconnects the power supply of the relay and disconnects the power supply of the AC contactor 3; when the refueling gun is lifted, the refueling gun auxiliary contact switch is closed, and the refueling machine 5 supplies power to the AC contactor 3 through the third circuit.

[0076] Preferably, the refueling gun auxiliary contact switch is connected with the monitoring component signal through a gun lifting signal collector, and the gun lifting signal collector is used for collecting the opening and closing signals of the refueling gun auxiliary contact switch and transmitting the signals to the monitoring component.

[0077] In this example, multiple refueling guns can be set on each refueling machine 5, and each refueling gun is provided with a refueling gun auxiliary contact switch, and multiple refueling gun auxiliary contact switches are connected in parallel, as shown in Figure 3 K01, K02, K03 and K04 are connected in parallel, and when any refueling gun auxiliary contact switch is closed, the gun lifting signal collector can collect the closing signal, and the refueling machine 5 can supply power to the AC contactor 3 through the third circuit to close the AC contactor 3.

[0078] The monitoring component receives the opening and closing information of the auxiliary contact switch of the refueling gun to feed back whether the gun is lifted on the monitoring component. Based on the signals uploaded to the monitoring component by the auxiliary contact switch of the gun, the first current signal collector 41, the first voltage signal collector 42 and the second voltage signal collector 43, the state of the oil pump 1 and the AC contactor 3 is fed back as shown in the following table:

[0079]

[0080] Preferably, the refueling machine 5 is provided with an emergency power-off switch, and the second circuit is provided with a second current and voltage monitoring component for monitoring the current and voltage on the second circuit and being signal-connected with the monitoring component.

[0081] In this example, when the on-site personnel encounter an emergency, the second circuit is disconnected after pressing the emergency power-off switch on the refueling machine 5. Therefore, the second current and voltage monitoring component is arranged on the second circuit, and the monitored current and voltage on the second circuit are transmitted to the embedded edge computing device. The embedded edge computing device judges the running state of the refueling machine 5 by obtaining the current and voltage on the second circuit, and transmits the judged result to the upper computer. The upper computer stores and displays the judged result, and when there is an abnormal situation, an alarm prompt can be given, or the collected current and voltage information can be directly displayed through the display. The monitoring component is arranged in the remote monitoring room, which can realize remote monitoring of the on-site refueling machine 5. The second current and voltage monitoring component is arranged on each second circuit connected with the refueling machine 5, and the monitored current and voltage information is uploaded to the monitoring component, which can realize remote monitoring of multiple refueling machines 5.

[0082] In some optional embodiments, the second current and voltage monitoring component includes a second current signal collector 61 and a third voltage signal collector 62 arranged on the second circuit.

[0083] In this example, the refueling machine circuit breaker 7 is arranged on the second circuit, the second current signal collector 61 is arranged on the second circuit between the refueling machine circuit breaker 7 and the power supply, and the third voltage signal collector 62 is arranged on the second circuit between the refueling machine circuit breaker 7 and the refueling machine 5.

[0084] The collected current, voltage and lifting signal are judged and processed by the embedded edge computing device, and the judged result is uploaded to the upper computer.

[0085] According to the arrangement positions of the second current signal collector 61 and the third voltage signal collector 62, the current and voltage signals presented by the second current signal collector 61 and the third voltage signal collector 62 are different under different running states of the refueling machine 5 and the monitoring component:

[0086] The operating state of the fuel dispenser: the second current signal collector 61 has a current signal, and the third voltage signal collector 62 has a voltage signal, that is, the incoming line end of the fuel dispenser circuit breaker 7 has a current signal, and the outgoing line end has a voltage signal.

[0087] The maintenance state of the fuel dispenser: the second current signal collector 61 has no current signal, and the third voltage signal collector 62 has no voltage signal, that is, the incoming line end of the fuel dispenser circuit breaker 7 has no current signal, and the outgoing line end has no voltage signal.

[0088] The emergency stop state of the fuel dispenser: the second current signal collector 61 has no current signal, and the third voltage signal collector 62 has a voltage signal, that is, the incoming line end of the fuel dispenser circuit breaker 7 has no current signal, and the outgoing line end has a voltage signal.

[0089] The following is a specific fuel dispenser state monitoring table:

[0090]

[0091] In the implementation of the scheme, according to the design of different fuel stations, the data of the multi-channel signal collector, the current and voltage signal collector, and the gun lifting signal collector are received, the equipment electrical signal characteristic values are received and recorded, the data are processed and alarm and control signals are output, the data are transmitted to the monitoring component, and the monitoring component judges the operating state of the fuel station equipment according to the received data signals. Specifically, the embedded edge computing device judges the operating state of the fuel station equipment according to the received data signals, and transmits the judgment result to the upper computer, and the upper computer stores and displays the judgment result, and when there is an abnormal condition, an alarm prompt can also be given.

[0092] In addition, the oil pump 1 will feedback different voltage and current values in different operating states, such as dry running and locked-rotor, dry running will feedback the corresponding dry running current, and locked-rotor will feedback the corresponding locked-rotor current.

[0093] Dry running current refers to the current generated by a submersible pump when it is running without carrying any load. In this case, the output power of the submersible pump is zero, but it still needs to overcome some internal resistance, such as the friction resistance of the core and the bearing, so the current is relatively small, usually only 10%-30% of the rated current.

[0094] Locked-rotor current refers to the current generated on the stator winding when the rotor of a submersible pump is blocked. This current is usually larger than the current during normal operation, because the motor needs more current to generate enough torque to overcome resistance in the locked-rotor state. The size of the locked-rotor current depends on the design and working conditions of the motor, and in general, the locked-rotor current will be several times larger than the rated current, and the specific value depends on the specific model and specifications of the motor.

[0095] Long runtime monitoring: long time has the signal of lifting the gun, simultaneously the voltage signal and the current signal in front of the AC contactor, and the local and remote alarm are provided when the time is over.

[0096] The monitoring component can monitor and give early warning to the oil pump 1 according to the specific values of the detected current and voltage.

[0097] When the monitored voltage is less than the rated voltage of the oil pump 1, the monitoring component gives an under-voltage alarm.

[0098] When the monitored current is greater than the first set multiple of the rated current of the oil pump 1, an overload alarm is given.

[0099] When the monitored current is greater than the second set multiple of the rated current of the oil pump 1, a locked-rotor alarm is given, the first set multiple is greater than the second multiple and greater than 1; in this example, the first set multiple is 2 and the second set multiple is 1.5.

[0100] When the monitored current is less than the third set multiple of the rated current of the oil pump 1, a dry-running alarm is given, and the third set multiple is less than 1; in this example, the third set multiple is 0.25-0.5.

[0101] The first, second and third set multiples are configured according to the parameters of different types of oil pumps.

[0102] Taking the rated voltage of the oil pump 1 as 180V and the rated current as 8A as an example:

[0103] Submersible pump under-voltage alarm: the working voltage of the submersible pump is lower than 180V.

[0104] Submersible pump overload alarm: the working current of the submersible pump is higher than 16A.

[0105] Submersible pump dry-running alarm: the working current of the submersible pump is lower than 2A.

[0106] Submersible pump locked-rotor alarm: the working current of the submersible pump is higher than 12A.

[0107] In the second aspect, the utility model also provides a submersible pump control cabinet monitoring device, include: first current voltage monitoring component and monitoring component.

[0108] By setting the first current voltage monitoring assembly on the first circuit connecting the oil pump 1 and the power supply, the current voltage on the first circuit is monitored, and the monitored current voltage information on the first circuit is uploaded to the monitoring assembly. The monitoring assembly displays the current voltage information monitored by the current voltage monitoring assembly, or displays the equipment operating state determined according to the current voltage information. Remote monitoring of whether the oil pump 1 is abnormal can be realized, and the safety of the on-site equipment can be improved when the on-site fault cannot be reported in time.

[0109] In some optional embodiments, the first current voltage monitoring assembly comprises a first current signal collector 41, a first voltage signal collector 42, and a second voltage signal collector 43. The first current signal collector 41 is arranged between the oil pump circuit breaker 2 and the AC contactor 3 on the first circuit. The first voltage signal collector 42 is arranged on the first circuit between the AC contactor 3 and the oil pump 1. The second voltage signal collector 43 is arranged on the first circuit between the oil pump circuit breaker 2 and the AC contactor 3.

[0110] Based on the above arrangement, whether the corresponding signals can be collected by the first current signal collector 41, the first voltage signal collector 42, and the second voltage signal collector 43 can determine whether the oil pump 1 and the monitoring assembly are faulty, in a maintenance state, or in a normal state. According to the arrangement position of the oil pump circuit breaker 2 and the AC contactor 3 on the first circuit, the current voltage signals at different positions on the first circuit are different under different operating states of the oil pump 1 and the monitoring assembly. For specific manners, refer to the above oil pump and AC contactor state monitoring table.

[0111] Preferably, the submersible pump control cabinet monitoring device further comprises a second current voltage monitoring assembly arranged on a second circuit for connecting the oil filling machine 5 and the power supply, for monitoring the current and voltage on the second circuit, and being signal connected with the monitoring assembly.

[0112] When the on-site personnel encounters an emergency, the emergency power-off switch on the oil filling machine 5 is pressed, and the second circuit is formed into an open circuit. Therefore, the second current voltage monitoring assembly is arranged on the second circuit, and the monitored current voltage on the second circuit is transmitted to the monitoring assembly. The running state of the oil filling machine 5 can be determined according to the current voltage on the second circuit displayed on the monitoring assembly. The monitoring assembly is arranged in a remote monitoring room, remote monitoring of the on-site oil filling machine 5 can be realized, the second current voltage monitoring assembly is arranged on each second circuit connecting the oil filling machine 5, and the monitored current voltage information is uploaded to the monitoring assembly, so that remote monitoring of multiple oil filling machines 5 can be realized.

[0113] Preferably, the second current voltage monitoring assembly comprises a second current signal collector 61 and a third voltage signal collector 62 arranged on the second circuit.

[0114] According to the setting positions of the second current signal collector 61 and the third voltage signal collector 62, the second current signal collector 61 and the third voltage signal collector 62 present different current and voltage signals in different operating states of the fuel dispenser 5 and the monitoring assembly. For specific manners, refer to the above-mentioned fuel dispenser state monitoring table.

[0115] In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0116] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0117] The above description is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A refueling device, characterized by, The application relates to a fuel dispenser, which comprises: an oil pump (1) connected with a power supply through a first circuit; a first current-voltage monitoring component arranged on the first circuit for monitoring the current voltage on the first circuit; a monitoring component connected with the first current-voltage monitoring component for displaying the current voltage information on the first circuit monitored by the first current-voltage monitoring component or the equipment running state obtained according to the current voltage information and displayed; an oil pump breaker (2) and an AC contactor (3) arranged on the first circuit from the power supply to the oil pump (1) in sequence, and the first current-voltage monitoring component comprises: a first current signal collector (41) arranged on the first circuit between the oil pump breaker (2) and the AC contactor (3); a first voltage signal collector (42) arranged on the first circuit between the AC contactor (3) and the oil pump (1); a second voltage signal collector (43) arranged on the first circuit between the oil pump breaker (2) and the AC contactor (3).

2. The fueling device of claim 1, wherein, The application further comprises a fuel dispenser (5) connected with the power supply through a second circuit, wherein the fuel dispenser (5) is connected with the AC contactor (3) through a control circuit, the control circuit comprises a third circuit for connecting the AC contactor (3) with the power supply end of the fuel dispenser (5), the third circuit is provided with a fuel gun auxiliary contact switch, the fuel gun auxiliary contact switch is closed when the fuel gun is lifted, and is connected with the monitoring component in signal mode.

3. The fueling device of claim 2, wherein, The fuel gun auxiliary contact switch is connected with the monitoring component in signal mode through a fuel gun lifting signal collector, and the fuel gun lifting signal collector is used for collecting the opening and closing signals of the fuel gun auxiliary contact switch and transmitting the signals to the monitoring component.

4. The fueling device of claim 2, wherein, The fuel dispenser (5) is provided with an emergency power-off switch, and a second current-voltage monitoring component is arranged on the second circuit for monitoring the current voltage on the second circuit and connected with the monitoring component in signal mode.

5. The fueling device of claim 4, wherein, The second current-voltage monitoring component comprises a second current signal collector (61) and a third voltage signal collector (62) arranged on the second circuit.

6. A submersible pump control cabinet monitoring device characterized by, The application relates to a fuel dispenser, which comprises: a first current-voltage monitoring component arranged on a first circuit connecting an oil pump (1) with a power supply for monitoring the current voltage on the first circuit; a monitoring component connected with the first current-voltage monitoring component for displaying the current voltage information on the first circuit monitored by the first current-voltage monitoring component or the equipment running state obtained according to the current voltage information and displayed; the first current-voltage monitoring component comprises: a first current signal collector (41) arranged on the first circuit between an oil pump breaker (2) and an AC contactor (3); a first voltage signal collector (42) arranged on the first circuit between the AC contactor (3) and the oil pump (1); a second voltage signal collector (43) arranged on the first circuit between the oil pump breaker (2) and the AC contactor (3).

7. The ESP control cabinet monitoring device of claim 6, wherein: The second current-voltage monitoring component is arranged on a second circuit for connecting the fuel dispenser (5) and the power supply, and is used for monitoring the current and voltage on the second circuit and is in signal connection with the monitoring component.

8. The ESP control cabinet monitoring device of claim 7, wherein: The second current-voltage monitoring component comprises a second current signal collector (61) and a third voltage signal collector (62) arranged on the second circuit.

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