CN111640249A - Metering and charging control device and method for LNG filling ship - Google Patents

Metering and charging control device and method for LNG filling ship Download PDF

Info

Publication number
CN111640249A
CN111640249A CN202010385642.3A CN202010385642A CN111640249A CN 111640249 A CN111640249 A CN 111640249A CN 202010385642 A CN202010385642 A CN 202010385642A CN 111640249 A CN111640249 A CN 111640249A
Authority
CN
China
Prior art keywords
filling
module
flow rate
control module
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010385642.3A
Other languages
Chinese (zh)
Inventor
周鑫华
陈睿
胡旭杰
尚延伟
朱人杰
陈一鸣
徐进师
王润泽
张琪
马文强
贾广鑫
许方卫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jari Automation Co ltd China
Original Assignee
Jari Automation Co ltd China
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jari Automation Co ltd China filed Critical Jari Automation Co ltd China
Priority to CN202010385642.3A priority Critical patent/CN111640249A/en
Publication of CN111640249A publication Critical patent/CN111640249A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
    • G07F15/001—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0623—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the set value given to the control element
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
    • G07F15/10—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with alarm or warning devices, e.g. indicating the interrupting of the supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/032—Control means using computers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0421—Mass or weight of the content of the vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0636—Flow or movement of content
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0689—Methods for controlling or regulating
    • F17C2250/0694—Methods for controlling or regulating with calculations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/07—Actions triggered by measured parameters
    • F17C2250/072—Action when predefined value is reached
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/02—Improving properties related to fluid or fluid transfer
    • F17C2260/028—Avoiding unauthorised transfer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships

Abstract

The invention discloses a metering and charging control device and a metering and charging control method for an LNG filling ship, wherein the device comprises an identity verification module used for verifying whether the identity is a safe identity; the man-machine interaction module is used for realizing man-machine interaction in the filling process; the emergency control module is used for generating a trigger signal for the actions of each component of the emergency cut-off control device and the filling equipment; the alarm module is used for monitoring abnormal information in the filling process of the filling equipment and the operation process of the control device and carrying out sound-light alarm; and the PLC control module is used for awakening the man-machine interaction module, starting the filling command or suspending the filling command and executing the safety interlocking action. The invention can realize one-button safe filling operation, overcomes the defect of independent dispersion of each device, solves the problem of complicated operation of repeated observation and control of traditional personnel, simplifies the operation process and improves the intelligent level; and the safety interlocking control is realized, the life and property safety guarantee is provided for the user, and the emergency efficiency and the safety factor are improved.

Description

Metering and charging control device and method for LNG filling ship
Technical Field
The invention belongs to the field of LNG loading and unloading control systems, particularly relates to the field of metering and charging control, and particularly relates to a metering and charging control device and a metering and charging control method for an LNG filling ship.
Background
At present, a metering and charging control system of an LNG filling ship consists of a controller, a metering instrument (such as a flowmeter), an action instrument (such as a valve and a pump), and an upper computer. In the LNG unloading process, the flow monitoring is carried out by using a flow meter arranged on a conveying pipeline in a metering mode, and the volume or the mass of the loaded material is obtained after conversion. And the personnel settle the charge according to the result of actual loading and unloading.
The control mode of LNG ship filling or unloading is: the personnel utilize independent control modules such as PLC and the like to control the pump machine and the valve according to specific safe operation rules. The controller collects and converts the data of the flowmeter, and simultaneously monitors the temperature and pressure signals on the medium pipeline, so that the personnel can observe and record conveniently. The conventional filling method has the following problems: the valve opening of the pipeline valve is changed by time according to experience, the flow rate of the medium is lack of accurate control, dangerous accidents are easily caused, and the filling efficiency is not reasonably planned.
In a word, hardware devices of the existing metering and charging control system are scattered, certain resource waste is caused, the automation degree is not high, and the field operation depends on the experience and proficiency of personnel to a great extent. Meanwhile, no set of automatic interlocking control exists for emergency, and safety risk exists.
Disclosure of Invention
The invention aims to overcome the defects of single and dispersed hardware equipment, low automation level, poor safety and the like of the conventional LNG ship metering and charging system and provides an accurate metering and charging control device and a control method of an LNG filling ship.
The technical solution for realizing the purpose of the invention is as follows: a metering and charging control device for an LNG filling vessel, the control device comprising:
the identity authentication module is used for authenticating whether the identity is a safe identity;
a human-computer interaction module comprising: the display module is used for displaying all working states and data of the control device and the filling equipment controlled by the control device; the control module is used for realizing manual control on the display module;
the emergency control module is used for generating a trigger signal for emergently cutting off actions of each component of the control device and the filling equipment;
the alarm module is used for monitoring all abnormal information in the filling process of the filling equipment and the operation process of the control device and giving sound and light alarm when any abnormal information is monitored;
the PLC control module is used for awakening the man-machine interaction module when the verification result of the identity verification module is a safe identity; the charging device is used for starting a charging command, receiving control information of the control module, acquiring and converting data of each metering and charging instrument in the charging device, and controlling the charging device to realize charging operation by combining the data and the control information; the device is used for receiving a filling suspension device signal generated by the control module and suspending a filling command; and the safety interlocking device is also used for receiving a trigger signal generated by the emergency control module or an alarm signal generated by the alarm module, suspending the filling command and simultaneously executing the safety interlocking action.
Further, the identity verification module comprises: the first-level verification unit is used for judging whether the information of the added IC card belongs to the safety information, if so, executing the second-level verification unit, otherwise, judging the information is the non-safety identity; the second-stage verification unit is used for judging whether the input password belongs to the safety information or not, if so, the input password is judged to be a safety identity, otherwise, the input password is judged to be a non-safety identity;
the display module comprises a control module which controls: the data entry unit is used for entering the working states and data of the control device and the filling equipment; the filling mode selection unit is used for selecting a filling mode of the filling equipment; the filling equipment starting unit is used for starting the filling equipment to work; and the filling equipment suspending unit is used for suspending the operation of the filling equipment.
Further, the priming mode includes:
quantitative filling mode: setting a filling amount, and judging whether the set filling amount exceeds the filling amount obtained after the balance conversion of the filling IC card by the PLC control module, if so, filling by the filling equipment according to the filling amount obtained by the balance conversion of the filling IC card, otherwise, filling by the filling equipment according to the set filling amount;
and (3) a fixed amount filling mode: setting a filling amount, judging whether the set amount exceeds the balance of a filling IC card by a PLC control module, if so, filling by filling equipment according to the filling amount converted from the balance of the filling IC card, and otherwise, filling by filling equipment according to the filling amount converted from the set amount;
self-defining the filling mode: and the PLC control module judges whether the filling amount converted by the balance of the filling IC card exceeds the filling threshold amount, if so, the filling equipment fills by the filling threshold amount, otherwise, the filling equipment fills by the filling amount converted by the balance of the filling IC card.
Further, the PLC control module includes:
the PLC is used for receiving and processing signals transmitted by other modules and realizing the automatic control of the filling operation process of the filling equipment;
the power supply lightning protection surge device is used for protecting a power supply circuit of the control device from being damaged by lightning;
the signal lightning protection surge device is used for protecting a signal line of the control device from being damaged by lightning;
the relay is used for isolating a digital quantity signal of the operation field instrument and protecting the PLC from being interfered by the digital quantity signal;
the switching power supply is used for supplying power to other module devices except the PLC in the control device and supplying power to the instruments on the operation site;
the PLC controller and the switch power supply are powered by external 220V.
Further, the PLC control module further includes a controller for controlling the filling device to perform the filling operation:
a pre-cooling module for pre-cooling the LNG pipeline until the actual temperature T0Reaching a preset temperature T;
and the grading filling module is used for controlling filling equipment to perform grading filling by adopting a multi-section flow rate control mode.
Further, the hierarchical filling module specifically adopts a four-section flow rate control mode to control filling equipment to perform hierarchical filling, and the hierarchical filling module comprises:
a first-stage filling unit for executing first-stage filling until the current filling flow cumulative value m0Reaches the first filling amount threshold value m1During which the actual filling flow rate v is controlled0Satisfy | v1-v0|≤1，v1In the case of a first fill flow rate threshold,1is a first allowable error;
second stageA filling unit for executing second-stage filling until the current filling flow cumulative value m0Reaching a second filling quantity threshold value m2During which the actual filling flow rate v is controlled0Satisfy | v2-v0|≤2，v2For the second fill flow rate threshold value,2is a second allowable error;
a third-stage filling unit for executing third-stage filling until the current filling flow cumulative value m0Reaching a third filling quantity threshold value m3During which the actual filling flow rate v is controlled0Satisfy | v3-v0|≤3，v3Is the third fill flow rate threshold value,3is a third allowable error;
a fourth-stage filling unit for executing the fourth-stage filling until the current filling flow cumulative value m0Reaches the preset filling amount mmaxDuring which the actual filling flow rate v is controlled0Satisfy | v4-v0|≤4，v4For the fourth fill flow rate threshold value,4is a fourth allowable error;
m is above1＜m2＜m3＜mmax，v1,v4＜v3＜v2。
The control method based on the metering and charging control device for the LNG filling ship comprises the following steps:
step 1, an identity authentication module carries out safety authentication on the identity of an operator, and if the identity of the operator passes the authentication, the next step is executed;
step 2, the PLC control module wakes up the man-machine interaction module;
step 3, starting the filling equipment through the man-machine interaction module, and selecting a filling mode;
step 4, the PLC control module clears the current charging flow accumulated value m0Loading the preset filling quantity m in the selected filling modemax；
Step 5, the PLC control module starts a filling command and detects whether the alarm module generates an alarm signal, if so, the filling command is suspended and a safety interlocking action is executed, and the step 4 is executed after the fault is eliminated; otherwise, executing the next step;
step 6, precooling the LNG pipeline until the actual temperature T0Reaching a preset temperature T;
and 7, controlling the filling equipment to perform graded filling by adopting a multi-section flow rate control mode, monitoring whether a filling ending condition occurs or not in real time by a PLC (programmable logic controller) control module in the filling process, suspending a filling command by the PLC control module when the filling ending condition occurs, and ending the filling.
Further, the filling end condition in step 7 includes:
first end condition: the PLC control module monitors the current charging flow accumulated value m0Reaches the preset filling amount mmax；
Or a second end condition: the PLC control module monitors that the control module generates a filling suspension device signal;
or a third end condition: the PLC control module monitors the alarm module to generate an alarm signal;
or a fourth end condition: the PLC control module monitors that the emergency control module generates a trigger signal;
further, when the third or fourth end condition occurs, step 7 further includes an action of executing a safety interlock action by the PLC control module to cut off each component of the filling device.
Further, step 7, the step of controlling the filling equipment to perform staged filling by using a multi-stage flow rate control mode, specifically, the step of controlling the filling equipment to perform staged filling by using a four-stage flow rate control mode, includes the following steps:
executing first-stage filling until the current filling flow cumulative value m0Reaches the first filling amount threshold value m1During which the actual filling flow rate v is controlled0Satisfy | v1-v0|≤1，v1In the case of a first fill flow rate threshold,1is a first allowable error;
executing second-stage filling until the current filling flow cumulative value m0Reaching a second filling quantity threshold value m2During the process of controllingMaking the actual filling flow rate v0Satisfy | v2-v0|≤2，v2For the second fill flow rate threshold value,2is a second allowable error;
executing third-stage filling until the current filling flow cumulative value m0Reaching a third filling quantity threshold value m3During which the actual filling flow rate v is controlled0Satisfy | v3-v0|≤3，v3Is the third fill flow rate threshold value,3is a third allowable error;
executing fourth-stage filling until the current filling flow cumulative value m0Reaches the preset filling amount mmaxDuring which the actual filling flow rate v is controlled0Satisfy | v4-v0|≤4，v4For the fourth fill flow rate threshold value,4is a fourth allowable error;
m is above1＜m2＜m3＜mmax，v1,v4＜v3＜v2。
Compared with the prior art, the invention has the following remarkable advantages: 1) the single hardware is integrated and developed, so that the defect that each device is independent and dispersive is overcome; 2) the system has an identity authentication function, and the safety is improved; 3) the LNG ship filling system has three filling modes of quota, quantification and user-defined, solves the problems that the conventional flowmeter is used for metering and personnel-assisted conversion in the LNG ship filling field all the time, enriches the functions of charging metering control, improves the diversification of the filling modes, and improves the loading and unloading efficiency and the automation level of the LNG ship; one-key filling can be realized, the operation process is simplified, and the intelligent level is improved; 4) the system has the advantages of automatic monitoring and control of the process, solving the problem of tedious operation of repeated observation and control of personnel, and saving the personnel cost and the loading and unloading time; 5) the emergency interlocking control system has a series of safety interlocking functions such as abnormal alarming and emergency stop operation, and carries out safety interlocking control on field equipment under emergency conditions, so that life and property safety guarantee is provided for users, and emergency efficiency and safety coefficient are improved; 6) the stepped adjusting means of multiple sections is adopted, the staged filling process of the LNG medium is realized, the traditional rough operation mode that the opening degree of a pipeline valve is changed by depending on experience and time is solved, and the problem that dangerous accidents are caused by lack of accurate control on the flow speed of the medium is avoided.
The present invention is described in further detail below with reference to the attached drawing figures.
Drawings
Fig. 1 is a block diagram of a metering and charging control device for an LNG filling ship in one embodiment.
Fig. 2 is a block diagram of a metering and billing control device for an LNG tanker according to an embodiment.
FIG. 3 is a hardware connection block diagram of components of the metering and charging control device for an LNG filling ship in one embodiment.
Fig. 4 is a schematic diagram of power supply of components of a metering and charging control device for an LNG filling ship in one embodiment.
Fig. 5 is a flow chart of a metering billing control method for an LNG refueling vessel in one embodiment.
Fig. 6 is a four-phase graph of a metering billing control method for an LNG tanker in one embodiment.
Fig. 7 is a control strategy diagram of a metering and billing control method for an LNG tanker according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, in combination with fig. 1, there is provided a metering and charging control device for an LNG filling vessel, the control device comprising:
the identity authentication module is used for authenticating whether the identity is a safe identity;
a human-computer interaction module comprising: the display module is used for displaying all working states and data of the control device and the filling equipment controlled by the control device; the control module is used for realizing manual control of the display module;
here, the control module illustratively implements the control of the display module by a touch display module manner or a peripheral device control manner, and thus the control module may employ a touch pen or a keyboard, etc.
The emergency control module is used for generating a trigger signal for the actions of each component of the emergency cut-off control device and the filling equipment;
the alarm module is used for monitoring all abnormal information in the filling process of the filling equipment and the operation process of the control device and giving sound and light alarm when any abnormal information is monitored;
here, the abnormality information includes all the environmental factor abnormalities that affect the operation of the LNG refueling ship, such as flow rate abnormality, temperature abnormality, pressure abnormality, and static electricity abnormality.
Here, the audible and visual alarm is exemplarily implemented by an LED lamp, a buzzer, or the like.
The PLC control module is used for awakening the human-computer interaction module when the verification result of the identity verification module is a safe identity; the charging device is used for starting a charging command, receiving control information of the control module, acquiring and converting data of each metering and charging instrument in the charging device, and controlling the charging device to realize charging operation by combining the data and the control information; the device is used for receiving a filling suspension device signal generated by the control module and suspending a filling command; and the safety interlocking device is also used for receiving a trigger signal generated by the emergency control module or an alarm signal generated by the alarm module, suspending the filling command and simultaneously executing the safety interlocking action.
Here, the safety interlock operation means an operation of shutting off each component of the filling apparatus. The safety interlocking control is carried out on the field equipment under the emergency condition, the life and property safety guarantee is provided for the user, and the emergency efficiency and the safety factor are improved
Here, it is preferable that the communication cables between the modules are all disposed within the explosion-proof flexible hose.
Further, in one embodiment, each module of the control device is installed in the explosion-proof box body.
Further specifically, in one embodiment, the identity authentication module and the man-machine interaction module are installed in the same explosion-proof box; the emergency control module is installed in an explosion-proof box, and the PLC control module is installed in an explosion-proof box.
As a specific example, in one embodiment, referring to fig. 2, the control device includes a protection cabinet, the protection cabinet includes a cabinet body 3, a cabinet door 1 and a cabinet door lock 2, the control device further includes an authentication module 9 disposed in the cabinet body 3, a display module using an LCD display 7, an operation module using a keyboard 6, an emergency control module using an emergency stop button 10 and a PLC control module 4, and an alarm module using an audible and visual alarm lamp 8 disposed on an outer wall of the cabinet body 3. Combine fig. 3, LCD display screen 7 passes through the net twine with PLC control module 4 and is connected, and authentication module 9 passes through the RS485 cable with PLC control module 4 and is connected, and emergency stop button 10 passes through electric connection with PLC control module 4, and acousto-optic warning lamp 8 passes through electric connection with PLC control module 4, and keyboard 6 passes through the USB port with LCD display screen 7 and is connected. The communication cables between the modules are all arranged in the explosion-proof flexible hose 5.
Here, the cabinet door 1 is provided with holes at positions corresponding to the authentication module, the display module, the operation module and the emergency control module, so that the cabinet door 2 is convenient to operate and observe under the condition of locking.
Further, in one embodiment, the identity verification module includes: the first-level verification unit is used for judging whether the information of the added IC card belongs to the safety information, if so, executing the second-level verification unit, otherwise, judging the information is the non-safety identity; and the secondary verification unit is used for judging whether the input password belongs to the safety information, if so, judging the password to be a safety identity, otherwise, judging the password to be a non-safety identity.
Here, the primary verification unit is the verification of adding the IC card by swiping the card, and the secondary verification unit is the password verification.
By adopting the scheme of the embodiment, the safety is improved through double identity authentication.
Further, in one embodiment, the display module includes: the data entry unit is used for entering the working states and data of the control device and the filling equipment; the filling mode selection unit is used for selecting a filling mode of the filling equipment; the filling equipment starting unit is used for starting the filling equipment to work; and the filling equipment suspending unit is used for suspending the operation of the filling equipment.
Further, in one embodiment, the filling mode includes:
quantitative filling mode: setting a filling amount, and judging whether the set filling amount exceeds the filling amount obtained after the balance conversion of the filling IC card by the PLC control module, if so, filling by the filling equipment according to the filling amount obtained by the balance conversion of the filling IC card, otherwise, filling by the filling equipment according to the set filling amount;
and (3) a fixed amount filling mode: setting a filling amount, judging whether the set amount exceeds the balance of a filling IC card by a PLC control module, if so, filling by filling equipment according to the filling amount converted from the balance of the filling IC card, and otherwise, filling by filling equipment according to the filling amount converted from the set amount;
self-defining the filling mode: and the PLC control module judges whether the filling amount converted by the balance of the filling IC card exceeds the filling threshold amount, if so, the filling equipment fills by the filling threshold amount, otherwise, the filling equipment fills by the filling amount converted by the balance of the filling IC card.
By adopting the scheme of the embodiment, the problem that the conventional flowmeter is used for metering and personnel-assisted conversion in the LNG ship filling field is solved, the function of charging metering control is enriched, and the loading and unloading efficiency and the automation level of the LNG ship are improved.
Further, in one embodiment, the PLC control module includes:
the PLC is used for receiving and processing signals transmitted by other modules and realizing the automatic control of the filling operation process of the filling equipment;
here, an exemplary PLC controller, model S7-200 Smart, is preferably employed.
The power supply lightning protection surge device is used for protecting a power supply circuit of the control device from being damaged by lightning;
the signal lightning protection surge device is used for protecting a signal line of the control device from being damaged by lightning stroke (each signal cable is connected to the PLC through the signal lightning protection surge);
the relay is used for isolating a digital quantity signal of the operation field instrument and protecting the PLC from being interfered by the digital quantity signal;
the 24V switching power supply is used for supplying power to other module devices except the PLC in the control device, and supplying power to instruments on a working site simultaneously as shown in FIG. 4;
referring to fig. 4, the power supply lightning protection surge protector is directly connected in parallel with L, N supplied with power from outside, and the PLC controller and the 24V switching power supply are supplied with power from 220V outside.
Further, in one embodiment, the PLC control module further includes a controller configured to control the filling device to perform a filling operation:
a pre-cooling module for pre-cooling the LNG pipeline until the actual temperature T0Reaching a preset temperature T;
here, the temperature T is set to-120 ℃ to-130 ℃ as an example.
And the grading filling module is used for controlling filling equipment to perform grading filling by adopting a multi-section flow rate control mode.
Further, in one embodiment, the staged filling module specifically controls the filling device to perform staged filling in a four-stage flow rate control manner, and the module includes:
a first-stage filling unit for executing first-stage filling until the current filling flow cumulative value m0Reaches the first filling amount threshold value m1During which the actual filling flow rate v is controlled0Satisfy | v1-v0|≤1，v1In the case of a first fill flow rate threshold,1is a first allowable error;
a second-stage filling unit for executing second-stage filling until the current filling flow cumulative value m0Reaching a second filling quantity threshold value m2During which the actual filling flow rate v is controlled0Satisfy | v2-v0|≤2，v2For the second fill flow rate threshold value,2is a second allowable error;
a third-stage filling unit for executing third-stage filling until the current fillingCumulative value m of flow0Reaching a third filling quantity threshold value m3During which the actual filling flow rate v is controlled0Satisfy | v3-v0|≤3，v3Is the third fill flow rate threshold value,3is a third allowable error;
a fourth-stage filling unit for executing the fourth-stage filling until the current filling flow cumulative value m0Reaches the preset filling amount mmaxDuring which the actual filling flow rate v is controlled0Satisfy | v4-v0|≤4，v4For the fourth fill flow rate threshold value,4is a fourth allowable error;
m is above1＜m2＜m3＜mmax，v1,v4＜v3＜v2。
By adopting the scheme of the embodiment, the staged filling process of the LNG medium is realized by a multi-stage stepped adjusting means, the rough operation mode that the opening degree of the pipeline valve is changed by depending on experience and time in the prior art is solved, and the problem that the medium flow velocity is lack of accurate control and further dangerous accidents are avoided.
The modules in the metering and charging control device for the LNG filling ship can be completely or partially realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, in combination with fig. 5, there is provided a control method based on the metering and charging control device for an LNG filling ship, the control method comprising the following steps:
step 1, an identity authentication module carries out safety authentication on the identity of an operator, and if the identity of the operator passes the authentication, the next step is executed;
step 2, the PLC control module wakes up the man-machine interaction module;
step 3, starting the filling equipment through the man-machine interaction module, and selecting a filling mode;
step 4, the PLC control module clears the current charging flow accumulated value m0Loading the preset filling quantity m in the selected filling modemax；
Step 5, the PLC control module starts a filling command and detects whether the alarm module generates an alarm signal, if so, the filling command is suspended and a safety interlocking action is executed, and the step 4 is executed after the fault is eliminated; otherwise, executing the next step;
step 6, opening a liquid phase valve to pre-cool the LNG pipeline until the actual temperature T0Reaching a preset temperature T;
and 7, controlling the filling equipment to perform graded filling by adopting a multi-section flow rate control mode, monitoring whether a filling ending condition occurs or not in real time by a PLC (programmable logic controller) control module in the filling process, suspending a filling command by the PLC control module when the filling ending condition occurs, and ending the filling.
Further, in one embodiment, the end-of-filling condition in step 7 includes:
first end condition: the PLC control module monitors the current charging flow accumulated value m0Reaches the preset filling amount mmax；
Or a second end condition: the PLC control module monitors that the control module generates a filling suspension device signal;
or a third end condition: the PLC control module monitors the alarm module to generate an alarm signal;
or a fourth end condition: the PLC control module monitors that the emergency control module generates a trigger signal;
further, in one embodiment, when the third or fourth end condition occurs, step 7 further includes an action of executing a safety interlock action by the PLC control module to cut off each component of the filling apparatus.
Further, in one embodiment, with reference to fig. 6, in step 7, a multi-stage flow rate control mode is adopted to control the filling device to perform staged filling, specifically, a four-stage flow rate control mode is adopted to control the filling device to perform staged filling, and the specific process includes:
execute the firstFilling in stages until the current cumulative filling flow value m0Reaches the first filling amount threshold value m1During which the actual filling flow rate v is controlled0Satisfy | v1-v0|≤1，v1In the case of a first fill flow rate threshold,1is a first allowable error;
here, set v1The method has the advantages that the filling is initially carried out at a low flow rate, the interior of the device and each pipeline are further precooled, the potential safety hazards of instantaneous evaporation and pressure surge caused by filling LNG at a high flow rate are solved, the water hammer phenomenon caused by the high flow rate is avoided, and the set filling amount m1The liquid level just overflows the filling pipe orifice, and the gasified natural gas is prevented from being discharged reversely;
executing second-stage filling until the current filling flow cumulative value m0Reaching a second filling quantity threshold value m2During which the actual filling flow rate v is controlled0Satisfy | v2-v0|≤2，v2For the second fill flow rate threshold value,2is a second allowable error;
here, set v2The normal filling flow rate under the normal condition is the full-speed filling flow rate;
executing third-stage filling until the current filling flow cumulative value m0Reaching a third filling quantity threshold value m3During which the actual filling flow rate v is controlled0Satisfy | v3-v0|≤3，v3Is the third fill flow rate threshold value,3is a third allowable error;
here, set v3The full-speed filling flow speed is lower than the full-speed filling flow speed, and preparation is made for finishing filling work by deceleration in the later period;
executing fourth-stage filling until the current filling flow cumulative value m0Reaches the preset filling amount mmaxDuring which the actual filling flow rate v is controlled0Satisfy | v4-v0|≤4，v4For the fourth fill flow rate threshold value,4is a fourth allowable error;
here, it is considered that the filling amount is to satisfy the settingFilling value, set v4The value is small, the control process starts to be terminated slowly, the measure has the advantages that the filling process is ended through the slow flow rate, pressure hidden danger and impact damage caused by sudden pipeline cutting can be avoided, and the termination of filling amount is more accurate.
M is above1＜m2＜m3＜mmax，v1,v4＜v3＜v2。
Further preferably, in one of the embodiments, v is set4＜v1。
Exemplary preferably, in one of the embodiments, v is set1＜1,v2＝3.3,v3＝2,v4< 1, unit is m/s, set m1＝15％mmax，m2＝60％mmax，m3＝85％mmaxUnit is m3。
With reference to fig. 7, the speed regulation in the staged filling is realized by adjusting the opening and closing of the regulating valve, and the speed regulation control strategy specifically comprises: taking the first-stage filling as an example, when the control v of the regulating valve0＞v1When the opening degree of the regulating valve is decreased gradually at the rate of 1%/s; when regulating the control v of the valve0＜v1When the valve is opened, the opening of the regulating valve is gradually increased at the rate of 1%/s; when regulating the control v of the valve0＝v1In time, the opening of the regulating valve is unchanged. The method has the advantages that aiming at the condition that the current control requirement is not high, the method is more direct than the traditional PID regulation, the real-time performance is better, the control strategy is more mature and reliable, the problem that the traditional PID control continuously adjusts parameters of proportion P, integral I and differential D according to different valve performances and depending on experience values is solved, the PID control strategies with good and bad values of various controllers (such as PLC) are not relied on any more, and the potential safety hazard caused by repeated tests in the early stage of filling is avoided.
Specific limitations on the metering and billing control method for the LNG tanker can be found in the above limitations on the metering and billing control device for the LNG tanker, and will not be described in detail here.
In conclusion, the invention can realize one-button safe filling operation, overcomes the defect that each device is independent and dispersed, solves the problem of complicated operation of repeated observation and control of traditional personnel, simplifies the operation process and improves the intelligent level; and the safety interlocking control is realized, the life and property safety guarantee is provided for the user, and the emergency efficiency and the safety factor are improved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A metering and charging control device for an LNG filling vessel, characterized in that the control device comprises:
the identity authentication module is used for authenticating whether the identity is a safe identity;
a human-computer interaction module comprising: the display module is used for displaying all working states and data of the control device and the filling equipment controlled by the control device; the control module is used for realizing manual control on the display module;
the emergency control module is used for generating a trigger signal for emergently cutting off actions of each component of the control device and the filling equipment;
the alarm module is used for monitoring all abnormal information in the filling process of the filling equipment and the operation process of the control device and giving sound and light alarm when any abnormal information is monitored;
the PLC control module is used for awakening the man-machine interaction module when the verification result of the identity verification module is a safe identity; the charging device is used for starting a charging command, receiving control information of the control module, acquiring and converting data of each metering and charging instrument in the charging device, and controlling the charging device to realize charging operation by combining the data and the control information; the device is used for receiving a filling suspension device signal generated by the control module and suspending a filling command; and the safety interlocking device is also used for receiving a trigger signal generated by the emergency control module or an alarm signal generated by the alarm module, suspending the filling command and simultaneously executing the safety interlocking action.
2. A metering and charging control device for an LNG filling vessel according to claim 1, characterized in that the authentication module comprises: the first-level verification unit is used for judging whether the information of the added IC card belongs to the safety information, if so, executing the second-level verification unit, otherwise, judging the information is the non-safety identity; the second-stage verification unit is used for judging whether the input password belongs to the safety information or not, if so, the input password is judged to be a safety identity, otherwise, the input password is judged to be a non-safety identity;
the display module comprises a control module which controls: the data entry unit is used for entering the working states and data of the control device and the filling equipment; the filling mode selection unit is used for selecting a filling mode of the filling equipment; the filling equipment starting unit is used for starting the filling equipment to work; and the filling equipment suspending unit is used for suspending the operation of the filling equipment.
3. A metering charge control device for an LNG tanker according to claim 2, wherein the filling mode comprises:
quantitative filling mode: setting a filling amount, and judging whether the set filling amount exceeds the filling amount obtained after the balance conversion of the filling IC card by the PLC control module, if so, filling by the filling equipment according to the filling amount obtained by the balance conversion of the filling IC card, otherwise, filling by the filling equipment according to the set filling amount;
and (3) a fixed amount filling mode: setting a filling amount, judging whether the set amount exceeds the balance of a filling IC card by a PLC control module, if so, filling by filling equipment according to the filling amount converted from the balance of the filling IC card, and otherwise, filling by filling equipment according to the filling amount converted from the set amount;
self-defining the filling mode: and the PLC control module judges whether the filling amount converted by the balance of the filling IC card exceeds the filling threshold amount, if so, the filling equipment fills by the filling threshold amount, otherwise, the filling equipment fills by the filling amount converted by the balance of the filling IC card.
4. A metering and charging control device for an LNG filling vessel according to claim 1, characterized in that the PLC control module comprises:
the PLC is used for receiving and processing signals transmitted by other modules and realizing the automatic control of the filling operation process of the filling equipment;
the power supply lightning protection surge device is used for protecting a power supply circuit of the control device from being damaged by lightning;
the signal lightning protection surge device is used for protecting a signal line of the control device from being damaged by lightning;
the relay is used for isolating the digital quantity signal of the operation field instrument;
the switching power supply is used for supplying power to other module devices except the PLC in the control device and supplying power to the instruments on the operation site;
the PLC controller and the switch power supply are powered by external 220V.
5. A metering and charging control device for an LNG tanker according to claim 1, wherein said PLC control module further comprises:
a pre-cooling module for pre-cooling the LNG pipeline until the actual temperature T0Reaching a preset temperature T;
and the grading filling module is used for controlling filling equipment to perform grading filling by adopting a multi-section flow rate control mode.
6. A metering and charging control device for an LNG filling vessel according to claim 5, characterized in that the staged filling module controls filling equipment to perform staged filling by adopting a four-stage flow rate control mode, and the module comprises:
a first-stage filling unit for executing first-stage filling until the currentCumulative value m of filling flow0Reaches the first filling amount threshold value m1During which the actual filling flow rate v is controlled0Satisfy | v1-v0|≤1，v1In the case of a first fill flow rate threshold,1is a first allowable error;
a second-stage filling unit for executing second-stage filling until the current filling flow cumulative value m0Reaching a second filling quantity threshold value m2During which the actual filling flow rate v is controlled0Satisfy | v2-v0|≤2，v2For the second fill flow rate threshold value,2is a second allowable error;
a third-stage filling unit for executing third-stage filling until the current filling flow cumulative value m0Reaching a third filling quantity threshold value m3During which the actual filling flow rate v is controlled0Satisfy | v3-v0|≤3，v3Is the third fill flow rate threshold value,3is a third allowable error;
a fourth-stage filling unit for executing the fourth-stage filling until the current filling flow cumulative value m0Reaches the preset filling amount mmaxDuring which the actual filling flow rate v is controlled0Satisfy | v4-v0|≤4，v4For the fourth fill flow rate threshold value,4is a fourth allowable error;
m is above1＜m2＜m3＜mmax，v1,v4＜v3＜v2。
7. Control method of a metering and charging control device for an LNG filling vessel according to any of the claims 1 to 6, characterized in that the control method comprises the steps of:
step 1, an identity authentication module carries out safety authentication on the identity of an operator, and if the identity of the operator passes the authentication, the next step is executed;
step 2, the PLC control module wakes up the man-machine interaction module;
step 3, starting the filling equipment through the man-machine interaction module, and selecting a filling mode;
step 4, the PLC control module clears the current charging flow accumulated value m0Loading the preset filling quantity m in the selected filling modemax；
Step 5, the PLC control module starts a filling command and detects whether the alarm module generates an alarm signal, if so, the filling command is suspended and a safety interlocking action is executed, and the step 4 is executed after the fault is eliminated; otherwise, executing the next step;
step 6, precooling the LNG pipeline until the actual temperature T0Reaching a preset temperature T;
and 7, controlling the filling equipment to perform graded filling by adopting a multi-section flow rate control mode, monitoring whether a filling ending condition occurs or not in real time by a PLC (programmable logic controller) control module in the filling process, suspending a filling command by the PLC control module when the filling ending condition occurs, and ending the filling.
8. The metering and billing control method for LNG tanker according to claim 7, characterized in that said filling end conditions in step 7 comprise:
first end condition: the PLC control module monitors the current charging flow accumulated value m0Reaches the preset filling amount mmax；
Or a second end condition: the PLC control module monitors that the control module generates a filling suspension device signal;
or a third end condition: the PLC control module monitors the alarm module to generate an alarm signal;
or a fourth end condition: and the PLC control module monitors that the emergency control module generates a trigger signal.
9. A metering and billing control method for LNG tanker according to claim 8, characterized in that upon the occurrence of said third or fourth end condition, step 7 further comprises the actions of safety interlock action performed by the PLC control module, shutting down the various components of the filling equipment.
10. The metering and charging control method for the LNG filling vessel according to claim 7, wherein the step 7 of controlling the filling equipment to perform staged filling by using a multi-stage flow rate control method, specifically, controlling the filling equipment to perform staged filling by using a four-stage flow rate control method, comprises the following steps:
executing first-stage filling until the current filling flow cumulative value m0Reaches the first filling amount threshold value m1During which the actual filling flow rate v is controlled0Satisfy | v1-v0|≤1，v1In the case of a first fill flow rate threshold,1is a first allowable error;
executing second-stage filling until the current filling flow cumulative value m0Reaching a second filling quantity threshold value m2During which the actual filling flow rate v is controlled0Satisfy | v2-v0|≤2，v2For the second fill flow rate threshold value,2is a second allowable error;
executing third-stage filling until the current filling flow cumulative value m0Reaching a third filling quantity threshold value m3During which the actual filling flow rate v is controlled0Satisfy | v3-v0|≤3，v3Is the third fill flow rate threshold value,3is a third allowable error;
executing fourth-stage filling until the current filling flow cumulative value m0Reaches the preset filling amount mmaxDuring which the actual filling flow rate v is controlled0Satisfy | v4-v0|≤4，v4For the fourth fill flow rate threshold value,4is a fourth allowable error;
m is above1＜m2＜m3＜mmax，v1,v4＜v3＜v2。
CN202010385642.3A 2020-05-09 2020-05-09 Metering and charging control device and method for LNG filling ship Pending CN111640249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010385642.3A CN111640249A (en) 2020-05-09 2020-05-09 Metering and charging control device and method for LNG filling ship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010385642.3A CN111640249A (en) 2020-05-09 2020-05-09 Metering and charging control device and method for LNG filling ship

Publications (1)

Publication Number Publication Date
CN111640249A true CN111640249A (en) 2020-09-08

Family

ID=72330851

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010385642.3A Pending CN111640249A (en) 2020-05-09 2020-05-09 Metering and charging control device and method for LNG filling ship

Country Status (1)

Country Link
CN (1) CN111640249A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117075568A (en) * 2023-10-18 2023-11-17 绵阳沃思测控技术有限公司 Batching control system based on continuous monitoring

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5628349A (en) * 1995-01-25 1997-05-13 Pinnacle Cng Systems, Llc System and method for dispensing pressurized gas
CN101231514A (en) * 2007-11-28 2008-07-30 蓝星（天津）化工有限公司 Quantitative car loading numeral control method
CN101434372A (en) * 2008-12-11 2009-05-20 托肯恒山科技（广州）有限公司 Hydraulic system control method and apparatus for fuel charger
CN101885462A (en) * 2010-06-25 2010-11-17 托肯恒山科技（广州）有限公司 Variable frequency hydraulic control system of fuel dispenser and quantitative refueling control method thereof
CN102566549A (en) * 2012-01-17 2012-07-11 河南工业大学 Oil distributing control system
CN104006289A (en) * 2013-10-09 2014-08-27 山东宏达科技集团有限公司 Skid-mounting full integration LNG and LCNG remote monitor unattended filling station
CN205781973U (en) * 2016-06-24 2016-12-07 上海新奥新能源技术有限公司 Liquid goods automaton and the LNG of a kind of LNG filling ship fill ship
CN106384438A (en) * 2016-11-24 2017-02-08 陕西合生杰森科技有限公司 Liquid self-help injection device, self-help injection and filling method, remote monitoring method
CN107065764A (en) * 2017-06-20 2017-08-18 成都华气厚普机电设备股份有限公司 A kind of LNG gas stations intelligence control system and its control method
CN109298675A (en) * 2018-10-18 2019-02-01 成都华气厚普电子技术有限公司 A kind of energy filling station intelligence control system
CN110111096A (en) * 2019-04-22 2019-08-09 惠龙易通国际物流股份有限公司 Vehicle fuel fills settlement management platform, system and method
CN110789722A (en) * 2018-08-02 2020-02-14 空中客车营运有限公司 Fuel addition system

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5628349A (en) * 1995-01-25 1997-05-13 Pinnacle Cng Systems, Llc System and method for dispensing pressurized gas
CN101231514A (en) * 2007-11-28 2008-07-30 蓝星（天津）化工有限公司 Quantitative car loading numeral control method
CN101434372A (en) * 2008-12-11 2009-05-20 托肯恒山科技（广州）有限公司 Hydraulic system control method and apparatus for fuel charger
CN101885462A (en) * 2010-06-25 2010-11-17 托肯恒山科技（广州）有限公司 Variable frequency hydraulic control system of fuel dispenser and quantitative refueling control method thereof
CN102566549A (en) * 2012-01-17 2012-07-11 河南工业大学 Oil distributing control system
CN104006289A (en) * 2013-10-09 2014-08-27 山东宏达科技集团有限公司 Skid-mounting full integration LNG and LCNG remote monitor unattended filling station
CN205781973U (en) * 2016-06-24 2016-12-07 上海新奥新能源技术有限公司 Liquid goods automaton and the LNG of a kind of LNG filling ship fill ship
CN106384438A (en) * 2016-11-24 2017-02-08 陕西合生杰森科技有限公司 Liquid self-help injection device, self-help injection and filling method, remote monitoring method
CN107065764A (en) * 2017-06-20 2017-08-18 成都华气厚普机电设备股份有限公司 A kind of LNG gas stations intelligence control system and its control method
CN110789722A (en) * 2018-08-02 2020-02-14 空中客车营运有限公司 Fuel addition system
CN109298675A (en) * 2018-10-18 2019-02-01 成都华气厚普电子技术有限公司 A kind of energy filling station intelligence control system
CN110111096A (en) * 2019-04-22 2019-08-09 惠龙易通国际物流股份有限公司 Vehicle fuel fills settlement management platform, system and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117075568A (en) * 2023-10-18 2023-11-17 绵阳沃思测控技术有限公司 Batching control system based on continuous monitoring
CN117075568B (en) * 2023-10-18 2024-01-05 绵阳沃思测控技术有限公司 Batching control system based on continuous monitoring

Similar Documents

Publication Publication Date Title
CN106123110A (en) A kind of heat exchange station automatic control system and method
CN202096833U (en) Electric automatic liquid discharge monitoring system
CN208421587U (en) The electronic valve detection device of bus-type
CN114962317B (en) Anti-surge control method for tooth type single-stage or multi-stage centrifugal compressor
CN111640249A (en) Metering and charging control device and method for LNG filling ship
CN2906709Y (en) Field bus-based distributed automatic control and protection system for coal mine emulsion pump station
CN113345289A (en) Training device and method for water turbine speed governor
CN211568926U (en) Nitrogen safety automatic protection system for steel normal-pressure oil product storage tank
CN206309631U (en) Compressor surge control device and system
CN106401930B (en) Air compressor intelligent control system
CN106896833A (en) Crude oil tank farm liquid level protection safety control method
CN202560605U (en) Multistage compressor control system
CN106502228A (en) A kind of liquid fuel management system and its management method for intelligent kitchen
Rosli et al. Industrial lab-bench liquid level process control system paper–phase I
CN105644724A (en) Control method and system for loading and unloading of cargo oil
CN113339183B (en) Shutdown control method and device for hydroelectric generating set and shutdown control equipment
CN215932890U (en) Practical training device for water turbine speed regulator
CN208122824U (en) A kind of well head control panel of gas production or the oil recovery of the long-range override of band
CN204879452U (en) Gas voltage regulating station with intelligent monitoring system
CN207992785U (en) A kind of desander sediment outflow pre-alarming control system
CN204117343U (en) Arcola security of operation IDT
CN109445382B (en) Processing capacity evaluation method and device, monitoring method and system for oil field combined station
Elwarfalli et al. SCADA Control Levels for Two Tanks Process
CN207380529U (en) A kind of cast tube production line security protection control system
CN111580504A (en) Simulation test platform of submarine cable oil pump station control system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20200908

RJ01 Rejection of invention patent application after publication