CN205500754U - General airport tank service truck refueling system with draw back oil and additive circulation pipeline - Google Patents

Abstract

The utility model provides a general airport tank service truck refueling system with draw back oil and additive circulation pipeline, including oil tank, oil pump, first bottom valve, second bottom valve, first on -off valve, second on -off valve, third on -off valve, the 5th on -off valve, flowmeter and nozzle, oil tank, first bottom valve, oil pump, first on -off valve, flowmeter, second on -off valve and nozzle form refueling pipeline, and nozzle, second on -off valve, flowmeter, the 5th on -off valve, oil pump, third on -off valve and second bottom valve form draws back the oil pipe way, and oil tank, first bottom valve, oil pump, third on -off valve and second bottom valve form additive circulation pipeline. Through having addd additive circulation pipeline on the basis of function and drawn back the oil pipe way refueling for the fuel can circulate, and fuel and additive intensive mixing effectively improve oil -fired quality, and can draw back the fuel of remaining in nozzle or the pipeline to the oil tank in, avoids oil -fired waste.

Description

There is the general aircraft gas refueller fuel loading system drawing back oil and additive circulation line

Technical field

This utility model relates to tank service truck field, draws back oil and additive follows in particular to having The general aircraft gas refueller fuel loading system on endless tube road.

Background technology

At present China's all purpose aircraft kind, quantity and be engaged in industry, agricultural, forestry, fishery and The operation flight of building industry and health care, rescue and relief work, meteorological detection, marine monitoring, science The flying activity of the aspects such as experiment, education and training, flight of travelling frequently, training flight is increasing.According to having Pass department predicts, within 2015, the demand of General Aviation will be quadrupled above than 2000 by market, reach By about 180,000 hours.To the year two thousand twenty, all purpose aircraft of China should reach more than 10,000 framves The most advanced level of developing country.

Along with the quick growth of General Aviation business, safety is the most urgent with demand for services easily.As Currently carry out the special-purpose vehicle of fueling operation guarantee, equipment, equipment etc. for all purpose aircraft the simplest and the crudest And lack of standardization, fill personnel specialty technological know-how famine, operate and lack of standardization, not only filled The quality of oil product can not get ensureing, and fueling operation safe coefficient is low, there is serious potential safety hazard, Moment threatens the safety of all purpose aircraft and operating personnel.

Utility model content

This utility model provides a kind of general airport oiling having and drawing back oil and additive circulation line Car fuel loading system, makes the problems referred to above be improved.

This utility model is achieved in that

A kind of tank service truck fuel loading system, including oil tank, oil pump, the first bottom valve, the second bottom valve, first On-off valve, the second on-off valve, the 3rd on-off valve, the 5th on-off valve, effusion meter and nozzle；

The bottom of described oil tank is provided with oil-out and oil return opening, described first bottom valve be arranged at described in go out Hydraulic fluid port and for controlling the break-make of described oil-out, described second bottom valve is arranged at described oil return opening and use In the break-make of the described oil return opening of control, by described first bottom valve between described oil-out and described oil pump Connection, is connected by described first on-off valve between described oil pump with described effusion meter, described effusion meter Connected by described second on-off valve with between described nozzle, between described oil pump and described oil return opening Connected, by described 5th break-make between described effusion meter and described oil pump by described 3rd on-off valve Valve connects；

Described oil tank, described first bottom valve, described oil pump, described first on-off valve, described effusion meter, Described second on-off valve and described nozzle form filling conduit, described nozzle, described second break-make Valve, described effusion meter, described 5th on-off valve, described oil pump, described 3rd on-off valve and described Two bottom valves are formed and draw back oil pipe line, described oil tank, described first bottom valve, described oil pump, the described 3rd On-off valve and described second bottom valve form additive circulation line.

Fuel loading system mainly has three functions, i.e. adds functional oil, draws back functional oil and additive circulation merit Can, in oiling operation, the fuel oil in oil tank passes sequentially through oil tank, oil-out, the first bottom valve, oil Pump, the first on-off valve, effusion meter, the second on-off valve and nozzle, it is achieved the more base of fuel loading system This add functional oil.Draw back oil operation in, the fuel oil in oil tank pass sequentially through nozzle, second lead to Disconnected valve, effusion meter, the 5th on-off valve, oil pump, the 3rd on-off valve and the second bottom valve, by nozzle Or the fuel oil in pipeline draws back to oil tank.In additive circulating process, fuel oil sequentially pass through oil tank, Oil-out, the first bottom valve, oil pump, the 3rd on-off valve, the second bottom valve and oil return opening, make with the addition of and add The fuel oil adding agent is circulated.This fuel loading system effectively improves the problem of existing tank service truck function singleness, And the fuel oil that with the addition of additive on the basis of refueling is sufficiently mixed by the way of circulation, oil tank Interior fuel oil mixes with additive more uniformly, quality is higher, and can be by nozzle or pipeline Trapped fuel draw back to oil tank.

Further, being provided with liquid level alarm in described oil tank, described liquid level alarm is installed on institute Stating the port lid of oil tank, described liquid level alarm includes float, float-controlled valve, feed channel and steam whistle, described Float is for detecting the liquid level in described oil tank and can open described float-controlled valve, and described float-controlled valve is opened Time, the gas in described oil tank makes described steam whistle report to the police by described float-controlled valve and described feed channel.

When the liquid level in oil tank arrives certain height, float floats and makes float-controlled valve open, oil tank Interior gas enters in feed channel, and gas makes steam whistle send alarm signal, and staff is appreciated that Liquid level in oil tank, the liquid level making liquid level alarm report to the police can be set as required.

Further, described fuel loading system also includes that drum, described drum include base and rotating disk, institute Stating nozzle and be provided with sebific duct, described rotating disk is provided with around tube seat, and described sebific duct is set around described around pipe In groove, described rotating disk rotating support is in described base.

Generally, the position of nozzle needs to adjust at any time, accordingly, it would be desirable to use sebific duct to carry out Connecting, the length of sebific duct may decide that the range of activity of nozzle, but, if sebific duct is long, then can Cause being difficult to folding and unfolding, if sebific duct is the shortest, it is difficult to make the range of activity of nozzle meet the requirements.Set up around After dish, by pulling nozzle, rotating disk rotation, sebific duct elongation can be made, after oiling, only need Sebific duct is packed up by rotating disk to be rotated, the range of activity of increase nozzle simple to operation, effective, Take up room after storage less, discharge is neat, convenient next time uses.

Further, described fuel loading system also includes filter separator and the 4th on-off valve, described filtration Separator includes import and the first outlet, by described 4th break-make between described import and described oil pump Valve connects, and described first outlet connects with described first on-off valve and described first outlet is with the described 3rd On-off valve connects, and is connected by described first on-off valve between described filter separator with described effusion meter, Described 3rd on-off valve and described second end is passed sequentially through between described filter separator and described oil return opening Valve connects.

Inventor finds in real work, along with the long-time use of oil tank, storage in oil tank Fuel oil would generally be mixed into a small amount of impurity.After impurity enters the electromotor of airborne vehicle or vehicle with fuel oil, meeting Electromotor is caused damage, and especially at aviation field, the requirement to airborne vehicle oil is the highest.For Improve this problem, filter separator is set.

Refuel time, fuel oil sequentially pass through the first bottom valve, oil pump, the 4th on-off valve, filter separator, First on-off valve, the second on-off valve and oil filling pipe enter the equipment needing fuel feeding, and filter separator is to combustion Oil filters, and separates impurity therein, thus ensures the quality of fuel oil.

When using as additive circulation line, fuel oil sequentially pass through the first bottom valve, oil pump, the 4th On-off valve, filter separator, the 3rd on-off valve and the second bottom valve enter in oil tank, carry out fuel oil Filter.

Further, described fuel loading system also includes three-way valve, sampler, oil sump tank and the 5th break-make Valve, described filter separator also includes that sewage draining exit, described three-way valve are provided with three interfaces, is respectively First interface, the second interface and the 3rd interface, described first interface and described first outlet, institute Stating the second interface to connect with described sampler, described 3rd interface connects with described sewage draining exit, described collection Connected by described 5th on-off valve between fuel tank with described sampler.

During using filter separator that fuel oil is filtered, need the mistake to filter separator Filter situation monitors in real time, the fuel oil or permissible from the impurity of sewage draining exit discharge etc. in filter separator Detect in three-way valve enters sampler in case of need, and then learn filter separator Duty, flow in oil sump tank through the 5th on-off valve after detection and discharge, detection mode Relatively simple.

Further, described fuel loading system also includes the first expansion joint and the second expansion joint, described first Expansion joint is arranged between described oil pump and described first bottom valve, and described second expansion joint is arranged at described Between oil pump and described 4th on-off valve.

In different working environments, the length of pipeline can be made to change, and, due to oil pump Work can produce heat, and the pipeline near oil pump is in the environment that temperature is higher, is easily deformed or damages Bad, and after setting up the first expansion joint and the second expansion joint, the thermal stretching of pipeline can be compensated, Improve service life and the safety of fuel loading system.

Further, described fuel loading system also include for detect described filter separate described import with The differential manometer of pressure differential between described first outlet, one end of described differential manometer be arranged at described import with Between described 4th on-off valve, the other end of described differential manometer is arranged at described first outlet with described the Between two on-off valves.

Differential manometer can monitor the pressure differential at filter separator two ends in real time, and then learns filter separator Instantaneous operating conditions, when filter separator work exception time staff can be made to find in time, and Adequate measures can be taked to be modified, it is ensured that filter separator normally works, Impurity removal effect More preferably, the fuel oil quality after filtering is higher.

Further, in described filter separator, it is provided with one-level filter element and two grades of filter elements, described two grades Filter element is sheathed on the outside of described one-level filter element, by described between described import and described first outlet One-level filter element and described two grades of filter elements separate.

Filter separator is vertical structure, and one-level filter element and two grades of filter element suits, fuel oil is through twice mistake Filter, filter effect is more preferable, and the quality of fuel oil is higher.

Further, described filter separator also includes the second outlet, described second outlet and described oil Tank connects.

Fuel oil in filter separator can be back in oil tank through the second outlet.

Further, described fuel loading system also includes that automatic exhaust steam valve, described automatic exhaust steam valve are arranged at The top of described filter separator.

Can produce gas during filtering fuel oil, gas is discharged by automatic exhaust steam valve, Avoiding gas to pile up the potential safety hazard caused, fuel loading system is safer.

Compared with prior art, the beneficial effects of the utility model are: by the basis adding functional oil On add additive circulation line so that fuel oil can be circulated, and fuel oil is the most mixed with additive Close, be effectively improved the quality of fuel oil, and the trapped fuel in nozzle or pipeline can be drawn back to In oil tank, it is to avoid the waste of fuel oil.

Accompanying drawing explanation

The tank service truck fuel loading system schematic diagram that Fig. 1 provides for this utility model embodiment；

Fig. 2 is the filling conduit schematic diagram of Fig. 1；

Fig. 3 is the additive circulation line schematic diagram of Fig. 1；

Fig. 4 be Fig. 1 draw back oil pipe line schematic diagram.

Oil tank 101；Oil pump 102；First bottom valve 103；Second bottom valve 104；First on-off valve 105； Second on-off valve 106；3rd on-off valve 107；Effusion meter 108；Nozzle 109；Liquid level alarm 110；Sebific duct 111；Drum 112；Filter separator 113；4th on-off valve 114；Differential manometer 115； Automatic exhaust steam valve 116；Three-way valve 117；Sampler 118；Oil sump tank 119；5th on-off valve 120； Sewage draining exit 121；First expansion joint 122；Second expansion joint 123；5th on-off valve 124.

Detailed description of the invention

Along with the quick growth of General Aviation business, safety is the most urgent with demand for services easily.As Currently carry out the special-purpose vehicle of fueling operation guarantee, equipment, equipment etc. for all purpose aircraft the simplest and the crudest And lack of standardization, fill personnel specialty technological know-how famine, operate and lack of standardization, not only filled The quality of oil product can not get ensureing, and fueling operation safe coefficient is low, there is serious potential safety hazard, Moment threatens the safety of all purpose aircraft and operating personnel.Tank service truck fuel loading system of the prior art Function is the most single, cannot meet and use requirement the most widely, meanwhile, in order to solve fuel oil The problems such as the carbon distribution that exists during burning in electromotor, pinking, discharge are the most up to standard, need in oil tank Fuel oil add additive, but, add after additive in oil tank, the fuel oil in oil tank is in work Time there is the problem that quality is unstable on the contrary.

In order to improve the problems referred to above, this utility model provides one to be had and draws back oil and additive The general aircraft gas refueller fuel loading system of circulation line, including oil tank, oil pump, the first bottom valve, Second bottom valve, the first on-off valve, the second on-off valve, the 3rd on-off valve, effusion meter and nozzle； Oil tank, the first bottom valve, oil pump, the first on-off valve, effusion meter, the second on-off valve and nozzle Forming filling conduit, oil tank, the first bottom valve, oil pump, the 3rd on-off valve and the second bottom valve are formed Additive circulation line.By adding additive circulation line on the basis of adding functional oil, Fuel oil can be circulated, and fuel oil is sufficiently mixed with additive, is effectively improved the product of fuel oil Matter, and the trapped fuel in nozzle or pipeline can be drawn back to oil tank, it is to avoid fuel oil Waste.

For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below will knot Close the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly Chu, it is fully described by, it is clear that described embodiment is a part of embodiment of this utility model, and It is not all, of embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art exist Do not make the every other embodiment obtained under creative work premise, broadly fall into this utility model The scope of protection.

Therefore, detailed description not purport to the embodiment of the present utility model provided in the accompanying drawings below Limit claimed scope of the present utility model, but be merely representative of selected reality of the present utility model Execute example.Based on the embodiment in this utility model, those of ordinary skill in the art are not making creation Property work premise under the every other embodiment that obtained, broadly fall into the scope of this utility model protection.

It should also be noted that similar label and letter represent similar terms, therefore, one in following accompanying drawing A certain Xiang Yi the accompanying drawing of denier is defined, then need not it is carried out further in accompanying drawing subsequently Definition and explanation.

In description of the present utility model, it should be noted that term " first ", " second ", " Three " etc. it is only used for distinguishing describing, and it is not intended that instruction or hint relative importance.

In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clear and definite regulation and limit Fixed, term " is arranged ", " connection " etc. should be interpreted broadly, such as, can be direct connection, also Can be by other parts indirect communication etc..For the ordinary skill in the art, permissible Concrete condition understands above-mentioned term concrete meaning in this utility model.

The tank service truck fuel loading system schematic diagram that Fig. 1 provides for this utility model embodiment；Fig. 2 is Fig. 1 Filling conduit schematic diagram；Fig. 3 is the additive circulation line schematic diagram of Fig. 1；Fig. 4 is Fig. 1's Draw back oil pipe line schematic diagram.

As Figure 1-Figure 4, this utility model embodiment provides one and has and draw back oil and additive The general aircraft gas refueller fuel loading system of circulation line, including oil tank 101, oil pump the 102, first bottom valve 103, second bottom valve the 104, first on-off valve the 105, second on-off valve the 106, the 3rd on-off valve 107, 5th on-off valve 124, effusion meter 108 and nozzle 109.

The bottom of oil tank 101 is provided with oil-out and oil return opening, as the preferred version of this embodiment, Being provided with liquid level alarm 110 in oil tank 101, liquid level alarm 110 is installed on the port lid of oil tank 101, Liquid level alarm 110 includes float, float-controlled valve, feed channel and steam whistle, and float is used for detecting oil tank 101 Interior liquid level also can open float-controlled valve, and when float-controlled valve is opened, the gas in oil tank 101 passes through float Valve and feed channel make steam whistle report to the police.

When the liquid level in oil tank 101 arrives certain height, float floats and makes float-controlled valve open, Gas in oil tank 101 enters in feed channel, and gas makes steam whistle send alarm signal, staff Being appreciated that the liquid level in oil tank 101, the liquid level making liquid level alarm 110 report to the police is permissible It is set as required.

First bottom valve 103 is arranged at oil-out and for controlling the break-make of oil-out, the second bottom valve 104 It is arranged at oil return opening and for controlling the break-make of oil return opening, by first between oil-out and oil pump 102 Bottom valve 103 connects, and is connected by the first on-off valve 105 between oil pump 102 with effusion meter 108.

In different working environments, the length of pipeline can be made to change, and, due to oil pump 102 work can produce heat, and the pipeline near oil pump 102 is in the environment that temperature is higher, easily becomes Shape or damage.In order to improve this problem, the further improvement project in such scheme is: fuel loading system Also including the first expansion joint 122 and the second expansion joint 123, the first expansion joint 122 is arranged at oil pump 102 And between the first bottom valve 103, the second expansion joint 123 is arranged at oil pump 102 and the 4th on-off valve 114 Between.

And after setting up the first expansion joint 122 and the second expansion joint 123, the thermal stretching of pipeline can be entered Row compensates, and improves service life and the safety of fuel loading system.

Connected by the second on-off valve 106 between effusion meter 108 with nozzle 109, oil pump 102 with Connected by the 3rd on-off valve 107 between oil return opening, by the between effusion meter 108 and oil pump 102 Five on-off valves 124 connect；

Oil tank the 101, first bottom valve 103, oil pump the 102, first on-off valve 105, effusion meter 108, Two on-off valves 106 and nozzle 109 form filling conduit, nozzle the 109, second on-off valve 106, Effusion meter the 108, the 5th on-off valve 124, oil pump the 102, the 3rd on-off valve 107 and the second bottom valve 104 Oil pipe line, oil tank the 101, first bottom valve 103, oil pump the 102, the 3rd on-off valve 107 and are drawn back in formation Second bottom valve 104 forms additive circulation line.

The fuel oil that connection is primarily referred to as between two parts can pass through, i.e. fuel oil enters in parts Entering in another one parts, the mode of connection does not limits, it is for instance possible to use oil pipeline connection etc.. Illustrating, " being connected by the second on-off valve 106 between effusion meter 108 with nozzle 109 " is referred to: Being provided with pipeline between effusion meter 108 and nozzle 109, fuel oil can be from effusion meter 108 through pipe Road flow in nozzle 109, and pipeline is provided with the second on-off valve 106 herein, and the second on-off valve 106 is used In the break-make of this pipeline of control, when the second on-off valve 106 is closed, fuel oil cannot be from effusion meter 108 Place flow to nozzle 109, and when the second on-off valve 106 is opened, fuel oil can flow at effusion meter 108 To nozzle 109.Fuel loading system is installed on vehicle formation tank service truck, is particularly suited for General Aviation Aircraft gas refueller, other structures of tank service truck are referred to prior art.

Fuel loading system mainly has three functions, i.e. adds functional oil, draws back functional oil and additive circulation merit Can, as in figure 2 it is shown, in oiling operation, the fuel oil in oil tank 101 passes sequentially through oil tank 101, goes out Hydraulic fluid port, the first bottom valve 103, oil pump the 102, first on-off valve 105, effusion meter the 108, second break-make Valve 106 and nozzle 109, it is achieved the most basic of fuel loading system adds functional oil.As shown in Figure 4, In drawing back oil operation, the fuel oil in oil tank passes sequentially through nozzle the 109, second on-off valve 106, stream Gauge the 108, the 5th on-off valve 124, oil pump the 102, the 3rd on-off valve 107 and the second bottom valve 104, Fuel oil in nozzle 109 or in pipeline is drawn back to oil tank.As it is shown on figure 3, follow at additive In ring operation, fuel oil sequentially pass through oil tank 101, oil-out, the first bottom valve 103, oil pump 102, Three on-off valve the 107, second bottom valve 104 and oil return openings, make the fuel oil that with the addition of additive be circulated. This fuel loading system effectively improves the problem of existing tank service truck function singleness, and on the basis of refueling The fuel oil that with the addition of additive is sufficiently mixed by the way of circulation, the fuel oil in oil tank 101 and interpolation Agent mixing is more uniform, quality is higher.

Generally, the position of nozzle 109 needs to adjust at any time, accordingly, it would be desirable to use sebific duct 111 are attached, and the length of sebific duct 111 may decide that the range of activity of nozzle 109, but, if Sebific duct 111 is long, then can cause being difficult to folding and unfolding, if sebific duct 111 is the shortest, it is difficult to make nozzle 109 Range of activity meet the requirements.As the preferred version of this embodiment, on the basis of said structure, Fuel loading system also includes that drum 112, drum 112 include that base and rotating disk, nozzle 109 are provided with glue Pipe 111, rotating disk is provided with around tube seat, and sebific duct 111 is set around in tube seat, and rotating disk rotating support is the end of in Seat.

After setting up drum 112, by pulling nozzle 109, rotating disk rotation, sebific duct 111 can be made to stretch Long, after oiling, it is only necessary to rotate rotating disk and sebific duct 111 is packed up, simple to operation, Effectively increase the range of activity of nozzle 109, take up room after storage less, discharge is neat, convenient Next time uses.

Inventor finds in real work, along with the long-time use of oil tank 101, at oil tank 101 The fuel oil of middle storage would generally be mixed into a small amount of impurity.Impurity enters starting of airborne vehicle or vehicle with fuel oil After machine, electromotor can be caused damage, especially at aviation field, the requirement to airborne vehicle oil is non- Chang Gao.In order to improve this problem, fuel loading system also includes filter separator 113 and the 4th on-off valve 114, Filter separator 113 includes import and the first outlet, by the 4th break-make between import and oil pump 102 Valve 114 connects, and the first outlet connects with the first on-off valve 105 and the first outlet and the 3rd on-off valve 107 Connection, is connected by the first on-off valve 105 between filter separator 113 with effusion meter 108, filters Pass sequentially through the 3rd on-off valve 107 between separator 113 and oil return opening and the second bottom valve 104 connects.

Refuel time, fuel oil sequentially pass through the first bottom valve 103, oil pump the 102, the 4th on-off valve 114, Filter separator the 113, first on-off valve the 105, second on-off valve 106 and oil filling pipe enter and need fuel feeding Equipment, fuel oil is filtered by filter separator 113, separates impurity therein, thus ensures combustion The quality of oil.

When using as additive circulation line, fuel oil sequentially pass through the first bottom valve 103, oil pump 102, 4th on-off valve 114, filter separator the 113, the 3rd on-off valve 107 and the second bottom valve 104 enter oil In tank 101, fuel oil is filtered.

As the preferred version of this embodiment, fuel loading system also includes for detecting the import filtering separation And the differential manometer 115 of pressure differential between the first outlet, one end of differential manometer 115 is arranged at import and the 4th Between on-off valve 114, the other end of differential manometer 115 is arranged at the first outlet and the second on-off valve 106 Between.

Differential manometer 115 can monitor the pressure differential at filter separator 113 two ends in real time, and then learnt The instantaneous operating conditions of filter separator 113, can make work when filter separator 113 operation irregularity Personnel find in time, and adequate measures can be taked to be modified, it is ensured that filter separator 113 is just Often work, Impurity removal effect is more preferable, and the fuel oil quality after filtering is higher.

As the preferred version of this embodiment, in filter separator 113, it is provided with one-level filter element and two grades Filter element, two grades of filter elements are sheathed on the outside of one-level filter element, pass through first-level filtering between import and the first outlet Core and two grades of filter elements separate.

Filter separator 113 is vertical structure, and one-level filter element and two grades of filter element suits, fuel oil is through two Secondary filtration, filter effect is more preferable, and the quality of fuel oil is higher.

As the preferred version of this embodiment, filter separator 113 also includes the second outlet, and second goes out Mouth connects with oil tank 101.

Fuel oil in filter separator 113 can be back in oil tank 101 through the second outlet.

As the preferred version of this embodiment, fuel loading system also includes automatic exhaust steam valve 116, automatic aerofluxus Valve 116 is arranged at the top of filter separator 113.

Can produce gas during filtering fuel oil, gas passes through automatic exhaust steam valve 116 quilt Discharge, it is to avoid gas piles up the potential safety hazard caused, and fuel loading system is safer.

As the preferred version of this embodiment, fuel loading system also include three-way valve 117, sampler 118, Oil sump tank 119 and the 5th on-off valve 120, filter separator 113 also includes sewage draining exit 121, sewage draining exit 121 bottoms that can be arranged at filter separator 113, three-way valve 117 is provided with three interfaces, respectively For first interface, the second interface and the 3rd interface, first interface and the first outlet, the second interface Connecting with sampler 118, the 3rd interface connects with sewage draining exit 121, oil sump tank 119 and sampler 118 Between connected by the 5th on-off valve 120.

During using filter separator 113 that fuel oil is filtered, need filter separator The filtration situation of 113 monitors in real time, fuel oil in filter separator 113 or from sewage draining exit 121 row The impurity gone out etc. can be examined in case of need in three-way valve 117 enters sampler 118 Survey, and then learn the duty of filter separator 113, through the 5th on-off valve 120 after detection Inflow oil sump tank 119 is interior and discharges, and detection mode is relatively simple.

It should be noted that the feature in embodiment in the case of not conflicting, in this utility model Can be combined with each other.

The foregoing is only preferred embodiment of the present utility model, be not limited to this practicality new Type, for a person skilled in the art, this utility model can have various modifications and variations.All Within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, Within should be included in protection domain of the present utility model.

Claims (10)

1. there is the general aircraft gas refueller fuel loading system drawing back oil and additive circulation line, its It is characterised by:

Including oil tank, oil pump, the first bottom valve, the second bottom valve, the first on-off valve, the second on-off valve, 3rd on-off valve, the 5th on-off valve, effusion meter and nozzle；

The bottom of described oil tank is provided with oil-out and oil return opening, described first bottom valve be arranged at described in go out Hydraulic fluid port and for controlling the break-make of described oil-out, described second bottom valve is arranged at described oil return opening and use In the break-make of the described oil return opening of control, by described first bottom valve between described oil-out and described oil pump Connection, is connected by described first on-off valve between described oil pump with described effusion meter, described effusion meter Connected by described second on-off valve with between described nozzle, between described oil pump and described oil return opening Connected, by described 5th break-make between described effusion meter and described oil pump by described 3rd on-off valve Valve connects；

Described oil tank, described first bottom valve, described oil pump, described first on-off valve, described effusion meter, Described second on-off valve and described nozzle form filling conduit, described nozzle, described second break-make Valve, described effusion meter, described 5th on-off valve, described oil pump, described 3rd on-off valve and described Two bottom valves are formed and draw back oil pipe line, described oil tank, described first bottom valve, described oil pump, the described 3rd On-off valve and described second bottom valve form additive circulation line.

The most according to claim 1 have draw back the general airport of oil and additive circulation line and add Oil car fuel loading system, it is characterised in that be provided with liquid level alarm, described liquid level report in described oil tank Alert device is installed on the port lid of described oil tank, and described liquid level alarm includes float, float-controlled valve, feed channel And steam whistle, described float is used for detecting the liquid level in described oil tank and can opening described float-controlled valve, institute When stating float-controlled valve unlatching, the gas in described oil tank makes described by described float-controlled valve and described feed channel Steam whistle is reported to the police.

The most according to claim 1 have draw back the general airport of oil and additive circulation line and add Oil car fuel loading system, it is characterised in that described fuel loading system also includes that drum, described drum include the end Seat and rotating disk, described nozzle is provided with sebific duct, and described rotating disk is provided with around tube seat, described sebific duct around Being located at described in tube seat, described rotating disk rotating support is in described base.

The most according to claim 1 have draw back the general airport of oil and additive circulation line and add Oil car fuel loading system, it is characterised in that described fuel loading system also includes filter separator and the 4th break-make Valve, described filter separator includes import and the first outlet, passes through between described import and described oil pump Described 4th on-off valve connection, described first outlet connects with described first on-off valve and described first goes out Mouthful connect with described 3rd on-off valve, between described filter separator and described effusion meter, pass through described the One on-off valve connection, passes sequentially through described 3rd break-make between described filter separator and described oil return opening Valve connects with described second bottom valve.

The most according to claim 4 have draw back the general airport of oil and additive circulation line and add Oil car fuel loading system, it is characterised in that described fuel loading system also includes three-way valve, sampler, oil-collecting Case and the 5th on-off valve, described filter separator also includes that sewage draining exit, described three-way valve are provided with three Interface, respectively first interface, the second interface and the 3rd interface, described first interface and described first Outlet, described second interface connects with described sampler, described 3rd interface and described sewage draining exit Connection, is connected by described 5th on-off valve between described oil sump tank with described sampler.

The most according to claim 4 have draw back the general airport of oil and additive circulation line and add Oil car fuel loading system, it is characterised in that described fuel loading system also includes that the first expansion joint and second compensates Joint, described first expansion joint is arranged between described oil pump and described first bottom valve, and described second compensates Joint is arranged between described oil pump and described 4th on-off valve.

The most according to claim 4 have draw back the general airport of oil and additive circulation line and add Oil car fuel loading system, it is characterised in that described fuel loading system also includes for detecting described filtration separation Described import and described first outlet between the differential manometer of pressure differential, one end of described differential manometer is arranged Between described import and described 4th on-off valve, the other end of described differential manometer is arranged at described first Between outlet and described second on-off valve.

The most according to claim 4 have draw back the general airport of oil and additive circulation line and add Oil car fuel loading system, it is characterised in that be provided with one-level filter element and two grades of filters in described filter separator Core, described two grades of filter elements are sheathed on the outside of described one-level filter element, described import and described first outlet Between separated by described one-level filter element and described two grades of filter elements.

The most according to claim 4 have draw back the general airport of oil and additive circulation line and add Oil car fuel loading system, it is characterised in that described filter separator also includes the second outlet, described second Outlet connects with described oil tank.

The most according to claim 4 have the general airport drawing back oil and additive circulation line Tank service truck fuel loading system, it is characterised in that described fuel loading system also includes automatic exhaust steam valve, described from Dynamic air bleeding valve is arranged at the top of described filter separator.