CN204372531U - Container-type LNG aerator - Google Patents

Abstract

The utility model discloses a kind of container-type LNG aerator, belong to technical field of LNG.The utility model comprises shipping container, the tank area of laying storage tank is provided with in shipping container, the two ends of shipping container are set to control panel and control room respectively, and be provided with aerating equipment, unloading equipment and LNG pipe-line system in control panel, aerating equipment and unloading equipment are connected to storage tank by LNG pipe-line system; Be provided with monitoring instrument in control room, the instrument in LNG pipe-line system and pipeline valve connect monitoring instrument and are controlled by it.LNG storage tank and fueling facility are integrated in shipping container by the utility model, solve aerator and are exposed to the outside existing potential safety hazard, the problem that validity is not high; Can realize unloading while liquid feeding, can automatically identify steel cylinder pressure rating, control system fills for different steel cylinder pressure security automatically; Can to tank temperature pressure examinations, occurring reports to the police automatically to unload puts; Without the video monitoring system at dead angle, without the need to artificial guard.

Description

Container-type LNG aerator

Technical field

The utility model relates to technical field of LNG, especially a kind of container-type LNG technology.

Background technique

LNG is the abbreviation of LNG Liquefied natural gas English Liquefied Natural Gas.After natural gas via purified treatment (impurity such as emergence work, sulphide, hydrocarbon, water), deep cooling is to-162 DEG C at ambient pressure, by gaseous state liquefy, is called LNG Liquefied natural gas, the volume flow rate of LNG Liquefied natural gas is with amount gaseous natural gas volume 1/625, and weight is about 45% of consubstantiality ponding.

LNG, as clean energy resource, is widely used in every field, when relating to the field such as automobile, ship, also just needs to carry out aerating to it.At present, the LNG aerator generally adopted, is be stored in LNG storage tank by LNG, is undertaken additional gas by the fueling facility that LNG storage tank connects; Wherein LNG storage tank and fueling facility long term exposure are in outward, and external temperature is comparatively large on the impact of LNG aerator on the one hand, larger on the impact of validity; The safety of LNG storage tank and fueling facility is not up to standard on the other hand, there is potential safety hazard.In addition, existing LNG aerator is all that fixed installation is motionless, can not carry out the fixed point aerating of transport formula.

Model utility content

Goal of the invention of the present utility model is: for above-mentioned Problems existing, a kind of container-type LNG aerator is provided, LNG storage tank and fueling facility are integrated in shipping container, solve aerator and be exposed to the outside existing potential safety hazard, the problem that validity is not high; Also solve the problem of LNG long distance transportation fixed point aerating, the needs of (interim aerating) can be implemented at some special occasions without the need to permanent type aerator; Can realize unloading while liquid feeding, can automatically identify steel cylinder pressure rating, control system fills for different steel cylinder pressure security automatically; Can to tank temperature pressure examinations, occurring reports to the police automatically to unload puts; Without the video monitoring system at dead angle, without the need to artificial guard, reduce human cost; Have unload, liquid feeding, supercharging, adjust saturated, automatically unload fundamental functions such as putting, automaticity is high.

The technical solution adopted in the utility model is as follows:

Container-type LNG aerator of the present utility model, comprise shipping container, the tank area of laying storage tank is provided with in described shipping container, the two ends of described shipping container are set to control panel and control room respectively, be provided with aerating equipment, unloading equipment and LNG pipe-line system in described control panel, aerating equipment and unloading equipment are connected to storage tank by described LNG pipe-line system; Be provided with monitoring instrument in described control room, the instrument in described LNG pipe-line system and pipeline valve connect monitoring instrument and are controlled by it.

Due to said structure, LNG storage tank and fueling facility are integrated in shipping container, solve aerator and be exposed to the outside existing potential safety hazard, the problem that validity is not high; Also solve the problem of LNG long distance transportation fixed point aerating, the needs of (interim aerating) can be implemented at some special occasions without the need to permanent type aerator; Can realize unloading while liquid feeding, can automatically identify steel cylinder pressure rating, control system fills for different steel cylinder pressure security automatically; Can to tank temperature pressure examinations, occurring reports to the police automatically to unload puts; Without the video monitoring system at dead angle, without the need to artificial guard, reduce human cost; Have unload, liquid feeding, supercharging, adjust saturated, automatically unload fundamental functions such as putting, automaticity is high.

Container-type LNG aerator of the present utility model, is provided with the aerating region being positioned at shipping container end face and the region of unloading being positioned at shipping container side in described control panel; Be provided with liquid filler in described aerating region, described liquid filler be configured with corresponding aerating muzzle, return-air muzzle and slotting muzzle; Corresponding gas phase pipeline, unload pipeline and pressure piping is configured with in described region of unloading.

Due to said structure, by subregion of entering to control panel, carry out while being convenient to aerating and unloading, mutual noninterference, and pipeline carries out concentrating in this control panel, thus be convenient to carry out the operations such as maintenance maintenance.

Container-type LNG aerator of the present utility model, described LNG pipe-line system comprises aerating pipeline, the pipeline and diffuse pipeline, the liquid filler in described aerating pipeline attended operation district of unloading, and described liquid filler connects storage tank by gas, liquid pipe; Described pipeline of unloading comprises gas phase pipeline, unload pipeline and pressure piping, described gas phase pipeline is connected on storage tank, described pipeline of unloading is connected on transportation of hydrocarbon pump, described transportation of hydrocarbon pump is connected to storage tank by corresponding gas, liquid pipe, described pressure piping is provided with pressurized machine, and described pressurized machine is connected the liquid-phase tube of liquid filler respectively with transportation of hydrocarbon pump; The described pipeline that diffuses is provided with EAG heater, and the import of described EAG heater connects the pipeline between storage tank, each bar liquid phase pipe and any two valves respectively, and described EAG heater is connected to exhaust stack.

Due to said structure, aerating pipeline can LNG liquid in storage tank by filling machine aerating in target carriage; Carry out the conveying of unloading of LNG by transportation of hydrocarbon pump (or immersed pump), realize unloading of LNG; Realize the supercharging when tank inner pressure is not enough by pressure piping simultaneously, guarantee that normal aerating operates; Diffusing pipeline then can be undertaken emptying by the LNG stream body left in any pipeline, avoids pipeline inner pressure to increase, and causes personal safety dangerous.

Container-type LNG aerator of the present utility model, described EAG heater is placed in above the storage tank in tank area, and described pressurized machine is placed in below the storage tank in tank area, and described exhaust stack stretches out shipping container in control panel; Pipeline in described LNG pipe-line system is all located on the pipe support in control panel, and the valve in described LNG pipe-line system is all located on the solenoid valve main frame in control panel, above the corner of described shipping container, be provided with camera.

Due to said structure, corresponding equipment and pipeline is arranged by the storage tank in tank area is other, make the component in whole shipping container more compact, thus can make to place all LNG aerating equipment and component in narrow and small shipping container, substantially reduce the spatial volume of whole LNG aerator, be convenient to transport and use; Valve and pipeline are carried out distinguishable region layout simultaneously, be convenient to follow-up management and supervision, maintenance; The video monitoring system without dead angle to shipping container can be realized by camera, without the need to artificial guard, reduce human cost.

Container-type LNG aerator of the present utility model, the monitoring instrument arranged in described control room, comprises the network switch, display screen, input terminal, SMS transmission module, user identity identification device, storage, computer and controller; Wherein display screen, input terminal, camera, SMS transmission module, storage, computer and controller all have signal with the network switch and are connected; User identity identification device and controller have signal and are connected; Controller also has signal with the instrument of shipping container and pipeline valve and is connected.

Due to said structure, by above-mentioned instrument, instrument and control system, the control of automation can be carried out whole container-type LNG aerator, can realize unloading while liquid feeding, can automatically identify steel cylinder pressure rating again, control system fills for different steel cylinder pressure security automatically; Can to tank temperature pressure examinations, occurring reports to the police automatically to unload puts; Without the video monitoring system at dead angle, without the need to artificial guard, reduce human cost; Have unload, liquid feeding, supercharging, adjust saturated, automatically unload fundamental functions such as putting, automaticity is high.

In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:

1, container-type LNG aerator of the present utility model, is integrated in shipping container by LNG storage tank and fueling facility, solves aerator and is exposed to the outside existing potential safety hazard, the problem that validity is not high; Also solve the problem of LNG long distance transportation fixed point aerating, the needs of (interim aerating) can be implemented at some special occasions without the need to permanent type aerator;

2, container-type LNG aerator of the present utility model, achieve the unmanned of gas station, when driver arrives at a station upper liquid feeding, first carry out the identification of driver, just can realize self-service refueling after being identified by, this process ensures aerating operation and safety automatically; Also achieve the pressure in Real-Time Monitoring LNG storage tank and temperature, when pressure, temperature are lower than certain value, automatically realize supercharging, heat;

3, container-type LNG aerator of the present utility model, when needs are unloaded, unload and could must be operated by checking by the user of corresponding authority, after obtaining operating right, management pneumatic valve of unloading can be opened, system detects flow meter temperature of unloading automatically, pump temperature etc., after completing the preparatory works such as precooling, can be able to start to unload by tutorial light prompting driver, Ore-controlling Role of standing can monitor whole process of unloading, note abnormalities meeting alarm driver, driver can be pointed out to stop making flow process when tank level reaches predefined value (storage tank completely limit 95%), normal execution and the safety of process of unloading are ensured,

4, container-type LNG aerator of the present utility model, also achieve unmanned LNG gas station station Ore-controlling Role when running state, real time monitoring is stood each instrument and apparatus data entirely, according to calculating such as each instantaneous value and systemic presupposition value compare, when departing from normal value, PLC does corresponding alarm, and classification is carried out to warning message, for the warning message of different stage, select different countermeasures, the efficiency improving process alert has ensured the safety of unmanned gas station simultaneously.

Accompanying drawing explanation

The utility model illustrates by example and with reference to the mode of accompanying drawing, wherein:

Fig. 1 is the side view of container-type LNG aerator of the present utility model.

Fig. 2 is the plan view of container-type LNG aerator of the present utility model.

Fig. 3 is the rear view of container-type LNG aerator of the present utility model.

Fig. 4 is the schematic internal view of container-type LNG aerator of the present utility model.

Fig. 5 is the schematic diagram of the LNG pipe-line system in the utility model.

Fig. 6 is the structured flowchart of Ore-controlling Role of standing in the utility model.

Fig. 7 is automatic liquid-feeding control flow chart in the control method of the utility model station.

Fig. 8 is control flow chart of automatically unloading in the control method of the utility model station.

Fig. 9 is automatic Regulation, temperature adjustment control flow chart in the control method of the utility model station.

Figure 10 is warning message and countermeasure example in the control method of the utility model station.

Figure 11 is the PID control principle drawing of constant voltage liquid feeding in the control method of the utility model station.

Mark in figure: 1-shipping container, 2-liquid feeding panel, 3-exhaust stack, 4-filling operation machine, 5-aerating pipeline, 6-control room, 7-vaporizer connecting tube, 8-storage tank, 9-EAG heater, 10-pressurized machine, 11-solenoid valve main frame, 12-heat-insulation system, 13-pipe support, 14-unload mouth, 15-nameplate, 16-liquid filler, 17-transportation of hydrocarbon pump, 18-mass flowmenter, Y-reserved opening, J-aerating muzzle, H-return-air muzzle, C-inserts muzzle, X1-unloads mouth, X2-gas phase mouth, X3-boost port.

Embodiment

All features disclosed in this specification, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.

Arbitrary feature disclosed in this specification (comprising any accessory claim, summary), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.

As shown in Fig. 1 to 5, container-type LNG aerator of the present utility model, comprise shipping container 1, the tank area of laying storage tank 8 is provided with in described shipping container 1, the two ends of described shipping container 1 are set to control panel and control room 6 respectively, be provided with aerating equipment, unloading equipment and LNG pipe-line system in described control panel, aerating equipment and unloading equipment are connected to storage tank 8 by described LNG pipe-line system; Be provided with monitoring instrument in described control room 6, the instrument in described LNG pipe-line system and pipeline valve connect monitoring instrument and are controlled by it.: be provided with the aerating region being positioned at shipping container 1 end face and the region of unloading being positioned at shipping container 1 side in described control panel; Be provided with liquid filler 16 in described aerating region, described liquid filler 16 is configured with corresponding aerating muzzle, return-air muzzle and slotting muzzle; Corresponding gas phase pipeline, unload pipeline and pressure piping is configured with in described region of unloading.Described LNG pipe-line system comprises aerating pipeline 5, the pipeline and diffuse pipeline, the liquid filler 16 in described aerating pipeline 5 attended operation district of unloading, and described liquid filler 16 connects storage tank 8 by gas, liquid pipe; Described pipeline of unloading comprises gas phase pipeline, unload pipeline and pressure piping, described gas phase pipeline is connected on storage tank 8, described pipeline of unloading is connected on transportation of hydrocarbon pump 17, described transportation of hydrocarbon pump 17 is connected to storage tank 8 by corresponding gas, liquid pipe, described pressure piping is provided with pressurized machine 10, and described pressurized machine 10 and transportation of hydrocarbon pump 17 are connected the liquid-phase tube of liquid filler 16 respectively; The described pipeline that diffuses is provided with EAG heater 9, and the import of described EAG heater 9 connects the pipeline between storage tank 8, each bar liquid phase pipe and any two valves respectively, and described EAG heater 9 is connected to exhaust stack 3.Described EAG heater 9 is placed in above the storage tank 8 in tank area, and described pressurized machine 10 is placed in below the storage tank 8 in tank area, and described exhaust stack 3 stretches out shipping container 1 in control panel; Pipeline in described LNG pipe-line system is all located on the pipe support 13 in control panel, and the valve in described LNG pipe-line system is all located on the solenoid valve main frame 12 in control panel, above the corner of described shipping container 1, be provided with camera.

In container-type LNG aerator of the present utility model, the station Ore-controlling Role formed by component each in monitoring instrument is comprised: the network switch, display screen, input terminal, camera, SMS transmission module, user identity identification device, storage, computer and controller.Wherein display screen, input terminal, camera, SMS transmission module, storage, computer and controller all have signal with the network switch and are connected.User identity identification device and controller have signal and are connected.Controller also has signal with the instrument in shipping container and pipeline valve and is connected.

In a specific embodiment, display screen and input terminal are a touch screen, and controller adopts PCL to realize, and user identity identification device is RFID card reader.

Camera is distributed in the region of the needs monitoring of shipping container, as important areas such as aerating district, unload zones, camera collection to video information to be transferred to by the network switch be positioned at monitoring chamber computer and storage on so that staff observes the situation of gas station in monitoring chamber.

Touch screen is for realizing the input of user instruction and exporting information, warning message etc. to user.User instruction is transferred to controller by the network switch, and controller controls field instrument and valve performs corresponding action.Controller also for receiving the status information that field instrument exports, exports to computer and/or touch screen by the network switch.

Controller also for by the network switch to touch screen and/or SMS transmission module output alarm information, SMS transmission module is for being sent to the mobile phone of designated person with note form by warning message.

Based on container-type LNG aerator of the present utility model, for realizing unattended station control method, as Fig. 7, when carrying out aerating, realized by following steps:

Step a1: user identity identification device identification user identity, identify successfully laggard enter liquid feeding process;

Step a2: in detected set vanning in storage tank liquid level whether higher than lowest order, if then point out user can carry out liquid feeding and carry out step a3; Otherwise point out user's liquid level low on a display screen and exit liquid feeding process;

Step a3: the temperature detecting transportation of hydrocarbon pump 17, whether lower than setting value, if then carry out step a4, repeats this step;

Step a4: detect liquid feeding button and whether be triggered, carry out liquid feeding if then open aerating pipeline valve and control transportation of hydrocarbon pump 17; Detect transportation of hydrocarbon pump 17 whether to break down simultaneously, stop liquid feeding if then close aerating pipeline valve and control transportation of hydrocarbon pump 17; Otherwise perform step a5;

Step a5: detect and stop liquid feeding condition whether to be triggered, stops liquid feeding if then close aerating pipeline valve and control transportation of hydrocarbon pump 17.

Wherein, whether step a4 comprises and detects liquid feeding button and be triggered, if then open aerating pipeline valve; Judge whether the pump control mode that user selects is Isobarically Control, if then control transportation of hydrocarbon pump 17 liquid feeding according to the output liquid pressure of setting, otherwise control transportation of hydrocarbon pump 17 liquid feeding according to the rotating speed of setting.

In step a5, whether whether detection stopping liquid feeding condition be triggered to detect and stop liquid feeding button to be triggered, or be that detection liquid volume added reaches user's setting value.

Consider that the constant pressure control system of liquid feeding exists such problem: the phenomenons such as transportation of hydrocarbon pump 17 is easy to that because the physical property of LNG determines cavitation occurs, finds time, feed flow is interrupted, the pid algorithm of conventional Isobarically Control can because the fluctuation of these reason build-ups of pressure be large, overshoot is obvious, the problems such as concussion, make liquid feeding process unstable.

The utility model additionally provides the constant voltage PID control flow of transportation of hydrocarbon pump 17 after a kind of improvement for this reason, as Fig. 6: gather pressure actual value after the pump of transportation of hydrocarbon pump 17, that is to say the pressure of transportation of hydrocarbon pump 17 delivery outlet; Using two input quantities of pressure set points after pressure actual value after pump and pump as PID control ring, the output quantity of PID control ring is the controlled quentity controlled variable of transportation of hydrocarbon pump 17 rotating speed.

After judging pump, whether pressure actual value is greater than pressure set points after pump, if be greater than, uses a × P as the gain of PID control ring, if be less than, uses b × P as the gain of PID control ring; Wherein 0 < a < b, P is the standard gain of PID control ring.

In a preferred embodiment, a gets 1, b and gets 2.Such practice adopts different gains at the concussion phase controlled at PID, when after pump, pressure actual value exceedes setting value, after adopting lower gain to make pump, pressure actual value slowly increases, and when after pump, actual pressure exceedes setting value, after adopting larger gain to make pump, pressure actual value declines fast, forms the effect thus the generation of minimizing overshoot condition of accelerating undershoot.

Further comprise following steps: after judging pump, after pressure actual value and pump, whether the absolute value of pressure set points difference is less than setting threshold value, and such as described setting threshold value is 1% of setting value, if be less than, the difference of PID control ring is set to 0.Such design philosophy be when pressure actual value after pump to differ with setting value be less than certain value time, we just think that actual value reaches setting value, and PID control valve exports constant, thus after making pump, pressure reaches stable fast.

In liquid feeding process, transportation of hydrocarbon pump 17 is because liquid level is low, the reason of pressure head deficiency makes feed flow not catch up with POF, pump delivery pressure can decline, lower than pressure set points after pump, but be unlikely to reach shutdown value, at this time conventional PID can increase output value automatically, control pump accelerates to extract LNG, in fact but because of no liquid supply, pressure rises not get on, final vicious circle makes revolution speed very fast, if the liquid of now cutout recovers suddenly flowing, the unexpected superelevation of the delivery pressure of pump can be caused, severe patient can exceed alarming value and safety valve jumping up, for avoiding occurring this phenomenon, this constant voltage PID control flow also add following steps:

Gather the inlet pressure of transportation of hydrocarbon pump 17; Pressure limits value after pump being deducted described inlet pressure and obtain the current permission boost pressure of pump, being then converted to maximum permissible speed controlled quentity controlled variable when front pump according to the head curve of transportation of hydrocarbon pump 17 by allowing boost pressure.What described head curve was shown is often props up the curve of pressure and rotation speed relation after the pump of transportation of hydrocarbon pump 17, when transportation of hydrocarbon pump 17 is produced well, its head curve also just uniquely determines, head curve can be provided by transportation of hydrocarbon pump 17 producer, can also build rear reality test obtain rotating speed head curve more accurately by process system.By this curve, we can by the spin rate control quantity allowing boost pressure to obtain maximum permission.

Transportation of hydrocarbon pump 17 spin rate control quantity exported by described PID control ring compares with the described maximum permissible speed controlled quentity controlled variable when front pump, if be less than, using the final controlled quentity controlled variable of transportation of hydrocarbon pump 17 spin rate control quantity of described PID control ring output as transportation of hydrocarbon pump 17 rotating speed, if be greater than, using the described final controlled quentity controlled variable of maximum permissible speed controlled quentity controlled variable as transportation of hydrocarbon pump 17 rotating speed working as front pump; The final controlled quentity controlled variable of transportation of hydrocarbon pump 17 rotating speed is used to remove to control the rotating speed of transportation of hydrocarbon pump 17.

As Fig. 8, when unloading, realized by following steps:

Step b1: detect button of unloading and whether be pressed, if then user identity identification device identification user identity, identifies the successfully laggard process that enters to unload;

Step b2: prompting user selects unloading way and receives the unloading way of user's selection;

Step b3: open inlet valve of unloading;

Step b4: the pressure in the balance liquid container of tank car and shipping container in storage tank;

Step b5: the liquid container of tank car is pressurizeed;

Step b6: the temperature detecting transportation of hydrocarbon pump 17, whether lower than setting value, if then carry out step b7, otherwise repeats this step;

Step b7: start to unload, and the liquid level in monitoring containers in storage tank, if liquid level exceedes liquid level high limit, then point out user to unload full;

Step b8: detect user and whether press stopping and unloading button, if then stop unloading; Otherwise in monitoring containers, whether the liquid level of storage tank exceedes the high limit of liquid level, if then stop unloading, otherwise repeats this step.

Unload in process, the unloading way described in step b2 comprises pump sledge unloading way, from supercharging unloading way and tank car pump unloading way.

As Fig. 9, when carrying out storage tank automatic Regulation in shipping container, realized by following steps:

Step c1: whether detection system standby time is greater than certain hour, if whether the pressure then detected in storage tank is lower than setting minimum value, if then whether pressurizeed by staff in computer inquiry shipping container, if staff confirms pressurization by computer in shipping container, open pressure charging valve and carry out supercharging;

Step c2: whether the pressure in monitoring storage tank reaches predefined value, if then terminate supercharging and close pressure charging valve; Whether overtimely monitor pressing time, if then terminate supercharging and close pressure charging valve simultaneously; If the pressure in storage tank do not reach predefined value and pressing time also non-time-out, repeat this step.

When carrying out storage tank automatic temperature-control in shipping container, realized by following steps:

Steps d 1: whether detection system standby time is greater than certain hour, if whether the temperature then detected in storage tank is lower than setting minimum value, if then whether heated by staff in computer inquiry shipping container, if staff confirms to heat by computer in shipping container, open thermal insulation valve, unlatching transportation of hydrocarbon pump 17 heats;

Steps d 2: whether monitoring transportation of hydrocarbon pump 17 breaks down, if do not have fault, performs steps d 3, otherwise terminates heat and close thermal insulation valve and transportation of hydrocarbon pump 17;

Steps d 3: whether the temperature in monitoring storage tank reaches predefined value, if then terminate to heat and close thermal insulation valve and transportation of hydrocarbon pump 17; Whether monitoring simultaneously heats the time overtime, if then terminate to heat and close thermal insulation valve and transportation of hydrocarbon pump 17; If the temperature in storage tank does not reach predefined value and heat time also non-time-out, repeat this step.

Figure 10 is shown alert that gas station may occur and countermeasure thereof.When carrying out fault treatment, controller gathers the parameter that in shipping container, each instrument is uploaded, and described parameter compared with its predefined value respectively, when after the normal predefined value of parameter drift-out that instrument is uploaded, controller does corresponding alarm;

Wherein the mode of alarm is divided into two classes, and wherein a class is for pointing out general Warning Event, and its step is for making first kind warning light glimmer and performing corresponding protection act; Another kind of for pointing out great Warning Event, its step is that shown great Warning Event occurs to SMS module by the network switch by controller, described great Warning Event is sent to administrative staff's mobile phone by SMS module again, cuts off power electric simultaneously, stops transportation of hydrocarbon pump 17 and close all pipeline valves.

To sum up, the beneficial effect of container-type LNG aerator of the present utility model is: be integrated in shipping container by LNG storage tank and fueling facility, solves aerator and is exposed to the outside existing potential safety hazard, the problem that validity is not high; Also solve the problem of LNG long distance transportation fixed point aerating, the needs of (interim aerating) can be implemented at some special occasions without the need to permanent type aerator; Achieve the unmanned of gas station, when driver arrives at a station upper liquid feeding, first carry out the identification of driver, just can realize self-service refueling after being identified by, this process ensures aerating operation and safety automatically; Also achieve the pressure in Real-Time Monitoring LNG storage tank and temperature, when pressure, temperature are lower than certain value, automatically realize supercharging, heat; When needs are unloaded, unload and could must be operated by checking by the user of corresponding authority, after obtaining operating right, can open unloads manages pneumatic valve, system detects flow meter temperature of unloading automatically, pump temperature etc., after completing the preparatory works such as precooling, can be able to start to unload by tutorial light prompting driver, Ore-controlling Role of standing can monitor whole process of unloading, note abnormalities meeting alarm driver, driver's shut-down operation flow process can be pointed out when tank level reaches predefined value (storage tank completely limit 95%), ensure normal execution and the safety of process of unloading; Also achieve unmanned LNG gas station station Ore-controlling Role when running state, real time monitoring is stood each instrument and apparatus data entirely, according to calculating such as each instantaneous value and systemic presupposition value compare, when departing from normal value, PLC does corresponding alarm, and classification is carried out to warning message, for the warning message of different stage, select different countermeasures, the efficiency improving process alert has ensured the safety of unmanned gas station simultaneously.

Container-type LNG aerator of the present utility model, has following function:

1, the application of intelligent gateway, is sent on the mobile phone of attendant by real-time for the warning message at scene, greatly improves the efficiency of housekeeping operation, reduces risk; Meanwhile, this intelligent gateway can be understood to internet, coordinates with TeamViewer software, realizes remote monitoring and operation.Achieve in mobile client, as the monitoring on mobile phone, flat board and operation simultaneously.

2, warning grading control, while keeping Security, make the operation at station more efficient, system according to current situation and warning message, recovers generic failure automatically automatically, allows liquid feeding process no longer carry out reset operation because of various unnecessary fault to control room.

For significant trouble, such as gas leakage, emergency stop button, by inferior situation, takes and cuts off power equipment power supply, but remains the power supply of control and supervisory system, prevents the situation causing supervisory system to lose efficacy due to the restriction of UPS power supply capacity.

3, intelligent liquid feeding, the identification of vehicle steel cylinder high low pressure, automatic switchover filling pressure; Pressure liquid filler can being selected to fill according to the pressure rating of vehicle steel cylinder, PLC system achieves constant voltage liquid feeding.Reduce the liquid feeding time, improve the utilization ratio of equipment.

4, storage tank is adjusted saturated automatically, the pressure of systemic presupposition storage tank normal need of work and temperature range, when pressure of storage tank or temperature are lower than this scope, PLC control system can automatically start supercharging or heat function, after pressure or temperature meet the demands, automatically switch to holding state, ensure that storage tank is in best aerated form;

5, to unload operation special operating platform, easy to operate, to unload by tank car driver is self-service to realize unloading, for this reason, simplifying flow process of unloading, need to take different unloading ways for different tank cars, increase and to unload operating right, corresponding tank car driver has oneself operating right, after connecting pipeline, only need simple key operation, can complete and unload;

6, the use of pump pond radar level gauge, together with temperature transmitter, omnibearing protection low temperature immersed pump, simultaneously in control, take new control thinking, to avoid in former system the problem often waiting for precooling, under ensureing that pump has the prerequisite of a good running environment, also achieve that send a car can the function of liquid feeding;

7, deep development ForceControl configuration software, generates historical data report, fault form, historical text etc. automatically, simultaneously can by thus data sheet be downloaded on local computing, for analysis.

8, fully use and reflect the logical equipment cable release function of writing brush, achieve the remote download of PLC, touch screen program, and safeguard, make the later maintenance of gas station no longer loaded down with trivial details, long-rangely can realize malfunction elimination and program upgrade.

9, the communication function of PLC and liquid filler is added; PLC can by the real data in liquid filler by upper-position unit or touch screen display; also remote monitoring can be supplied; simultaneously; upper-position unit and touch screen show the failure code of liquid filler in real time; can inquire about fast according to failure code and shut down reason getting rid of, very big improve liquid feeding efficiency.

10, the use of Deadman function, at liquid feeding or unload in process, abandons after former button with regard to control mode no matter, in order to ensure the safety of process, in liquid feeding process, driver needs in every 60 seconds, presses a liquid feeding key, liquid feeding process just can not stop, otherwise, will liquid feeding be stopped.Unload in process, if use the pump on sledge to unload, driver needs every 3 minutes, presses one-shot key, otherwise, will shut down and unload.And count down time all can be shown by touch screen.

The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.

Claims (5)

1. container-type LNG aerator, it is characterized in that: it comprises shipping container (1), described shipping container is provided with the tank area of laying storage tank (8) in (1), the two ends of described shipping container (1) are set to control panel and control room (6) respectively, be provided with aerating equipment, unloading equipment and LNG pipe-line system in described control panel, aerating equipment and unloading equipment are connected to storage tank (8) by described LNG pipe-line system; Described control room is provided with monitoring instrument in (6), and the instrument in described LNG pipe-line system and pipeline valve connect monitoring instrument and controlled by it.

2. container-type LNG aerator as claimed in claim 1, is characterized in that: be provided with the aerating region being positioned at shipping container (1) end face and the region of unloading being positioned at shipping container (1) side in described control panel; Be provided with liquid filler (16) in described aerating region, described liquid filler (16) is configured with corresponding aerating muzzle, return-air muzzle and slotting muzzle; Corresponding gas phase pipeline, unload pipeline and pressure piping is configured with in described region of unloading.

3. container-type LNG aerator as claimed in claim 1 or 2, it is characterized in that: described LNG pipe-line system comprises aerating pipeline (5), the pipeline and diffuse pipeline of unloading, liquid filler (16) in described aerating pipeline (5) attended operation district, described liquid filler (16) connects storage tank (8) by gas, liquid pipe; Described pipeline of unloading comprises gas phase pipeline, unload pipeline and pressure piping, described gas phase pipeline is connected on storage tank (8), described pipeline of unloading is connected on transportation of hydrocarbon pump (17), described transportation of hydrocarbon pump (17) is connected to storage tank (8) by corresponding gas, liquid pipe, described pressure piping is provided with pressurized machine (10), and described pressurized machine (10) is connected the liquid-phase tube of liquid filler (16) respectively with transportation of hydrocarbon pump (17); The described pipeline that diffuses is provided with EAG heater (9), and the import of described EAG heater (9) connects the pipeline between storage tank (8), each bar liquid phase pipe and any two valves respectively, and described EAG heater (9) is connected to exhaust stack (3).

4. container-type LNG aerator as claimed in claim 3, it is characterized in that: described EAG heater (9) is placed in storage tank (8) top in tank area, described pressurized machine (10) is placed in storage tank (8) below in tank area, and described exhaust stack (3) stretches out shipping container (1) in control panel; Pipeline in described LNG pipe-line system is all located on the pipe support (13) in control panel, and the valve in described LNG pipe-line system is all located on the solenoid valve main frame (12) in control panel, above the corner of described shipping container (1), be provided with camera.

5. the container-type LNG aerator as described in claim 1 or 2 or 4, it is characterized in that: the monitoring instrument arranged in described control room (6), comprises the network switch, display screen, input terminal, SMS transmission module, user identity identification device, storage, computer and controller; Wherein display screen, input terminal, camera, SMS transmission module, storage, computer and controller all have signal with the network switch and are connected; User identity identification device and controller have signal and are connected; Controller also has signal with the instrument of shipping container (1) and pipeline valve and is connected.