Refill the hub units of the system and their types
Refill the hub units of the system and their types

Refill the hub units of the system and their types

This section presents the main types of filling machines. Note that the master node is a centralized filling module. There are few options for that module. It allows you to fill up 4 m3 in a minute. This restriction is introduced for several reasons: limited charging rate and the maximum capacity of the filling equipment (water hammer) The speed refueling VS fuel limited by the rules of safety. Fuel (TC-1, the TS-2, A-1, Jet-A1 et al.) Are insulators and can accumulate static electricity during flow through the hose, and at the time of filling cause a spark, which could ignite the fuel and explode it vapors.

For modern fuels, the refueling speed (flow through the fuel hose) is up to 2 m / s. The fuel industry proposed a solution to the problem: use special antistatic additives in the composition of the fuel. The use of additives allows you to increase the speed of fueling up to 5 m / s. Such additives (for example ASP-1 / 2 / 3) are added to the fuel immediately prior to the sale (delivery) of fuel from the processing plant to the fuel and lubricants complex of the airport.

the hub system

Fig. 1 Functional diagram of the hydrant filling system: 1 - supply tank, 2 - gate valve, 3 - pipeline, 4 - filter screen, 5, 8, 10 - pressure gauge, 6 - pressure relief valve, 7 - pump, 9 - pressure gauge, 11 - pressure relief valve, 12 - pump, 13 - pressure gauge, 14 - pressure relief valve, 15 - pump, 16 - pressure gauge, 17 - pressure relief valve, 18 - pump, 19 - pressure gauge, 20 - safety relief valve, pressure relief, 21 - pump, 22 - pressure gauge, 23 - safety relief valve, pressure relief, XNUMX - pump, XNUMX - pressure gauge, XNUMX - pressure relief valve, XNUMX - pump, XNUMX - pressure gauge, XNUMX - safety relief valve, pressure relief, XNUMX - pump, XNUMX - pressure gauge, XNUMX - safety relief valve, coarse filter, XNUMX - filter separator, XNUMX - hydraulic shock absorber, XNUMX - rubberized hose, XNUMX - connecting device, XNUMX - liquid PVC supply valve, XNUMX - Pressure gauge, XNUMX - PVC liquid tank, XNUMX - PVC liquid filter, XNUMX - supply tank charging valve, XNUMX - hydrant well, XNUMX - filling unit; XNUMX - the plane.

The system of hydrant refueling of aircraft (TsSVSVS) is a complex system of pipelines and fuel lines with a large number of control units and pumping systems.

The general structure of the centralized system of refueling Sun presented above (Ris.№1). In this paper, according to the task, it will be considered charging unit.

Filling machines

Figure 2 - A general view of a mobile refueling unit mounted on the vehicle

1 - filter-water separator; 2 - hose reel; 3 - distributing sleeves; 4 - counter dispenser; 5 - flow regulator.

Above is a general view of the charging unit of the CZS system (Fig. No. 2). Refueling is as follows: A refueling unit pulls up to the aircraft parked, equipped with a fuel hydrant. One sleeve is connected to the hydrant, which is located under the apron, closed by a hatch. Next, the transfer sleeve is connected to the corresponding socket refueling. Refueling can be carried out both open, and closed type. Then the pump is turned on and the fuel supply to the aircraft begins. As a rule, located on the platforms of the two columns to be able to fill all kinds of aircraft. For the option of HRT provides two types of fuel column installed on each variety.

Installation for parking two audio speakers are arranged symmetrically on the right and left sides, a distance 9 m from the longitudinal axis of the aircraft and 6 m from the axial line of the main chassis in the direction of the plane. When installing audio speakers last located right of the longitudinal axis of the aircraft on the above distances. It should be borne in mind that in all cases the columns to be placed behind the projection plane and the contours of possible paths of the aircraft is on the taxiways.

Hydrant column should not interfere with maneuvering the aircraft and mobile means of ground support, so they are placed on MS and fueling apron recessed flush with covered parking in a metal casing. The general structure of the hydrant column shown in Fig. 3.

filling equipment

1 - well; 2 - the locking handle; 3 - centering handles; 4 - cover; 5 - drain valve; 6 - adjusting screw; 7 - hydrant regulator; 8 - outlet; 9 - gland; 10 - seal; 11 - control knob; 12 - screw setting the emergency shutdown hydrant; 13 - valve setting valve closing time; 14 - pilot device plug; 15 - control mechanism; 16 - valve control mechanism; 17 - locking screw; 18 - hydrant cover

For this purpose, the cover is provided with a mounting aperture sizes 3h3 m. To prevent rainwater and meltwater body column sealed lid 4 with rubber O-ring. Gland 9 device prevents the penetration into the body of groundwater. A column cover hydrant calculated strength, the maximum specific load pressure operated aircraft reaching 12 kgf / cm2.

Availability column hydrant control type RG-03 can automatically maintain a preset pressure at the outlet of the column and produce automatic shutoff of fuel as it passes through the column more fuel than specified adjustment, as well as in emergency situations (at breakage of the sleeve at the filling unit, etc. .).

Specification hydrant regulator RG-03

Setting range adjustable pressure, kgf / cm2

minimum 2, 8 maximum

Capacity, m3/ h

Minimal 30, 150 maximum

Maximum pressure, kgf / cm2


The hydrant regulator РГ-03 (fig. 4) is a direct-acting pressure regulator, such as "after itself" with a vertical fuel flow and at the same time a device that automatically blocks the supply pipeline with a special valve that moves with the energy of the fuel flow at super-acceptable flow rates. It includes three main elements: a shut-off valve, control valves and a distribution device.

Hydrant control 3

Figure 4 - hydrant regulator RG-03

Currently, the new domestic and foreign speakers used HRT various modifications mainly produced in Europe and the US such firms as "Zenith" and "Carter". Typical layout of the equipment in the new hydrant column modifications (on the recommendations of IP) is given in Fig. 5.

foreign HRT

Figure 5 - Typical layout of equipment in a hydrant column shaft type

1 - penstock; 2 - shaft diameter hydrant box 46 cm; 3 - reverse (isolation) valve with manual or remote control; 4 - additional mesh 20-micron filter; 5 - flow control and pressure; 6 - hydrant nozzle diameter mm 102, 7 - -gidrantnaya clutch diameter 102 mm; 8 - fuel hose; 9 - laying; 10 - gravel cushion; 11 - concrete pad; 12 - air duct

In the hub system used mobile and stationary filling units. Using mobile filling units due to the fact that the use of stationary units require large amounts of expensive equipment, the utilization of which, in numerous places of parking is low. Therefore, at airports with a large number of aircraft parking apron used primarily mobile refueling units. If the number of parking places is small, and the load factor is high enough, it is advisable to use a stationary fueling aircraft fuel.

Select the type of unit grounded technical and economic calculations and depends on the traffic of aircraft types serviced aircraft refueling operations in the duration of parking spaces, parking spaces purpose, which is done loading, the number of parking places served by fixed means of refueling and the existing filling equipment.

The number of fixed units is determined by the number of parking places, the hub served by the system, the rate of one unit for each berth. If you want to be placed on a parking lot of two units. Equipment mobile refueling units mounted on the chassis of cars, trailers and special trucks. The latter may be self-propelled and trailed.

To the airportah with great intensity sorties used machines mounted on vehicles; trailed machines used in airports with low intensity. Almost all filling units have the same flowsheet (ris.№6).

Drawing 6- Process flow diagram of a mobile refueling unit

The mobile refueling unit is connected to the hydrant (connecting) column of the DZS system by means of a receiving arm 2 with a diameter of 100 mm and a length of 7-7,5 m, and to the aircraft side fittings with two or one 14 dispensing hose. The connection of the receiving hose to the column and the dispensing hoses with closed fueling to the fuel system of the aircraft is carried out with the help of quick connectors 1 and 15. As such connections on the dispensing hoses are used tips for closed refueling type NNZ or manufactured by normal MAP 2561A. With open fueling on the dispenser sleeves, instead of handpieces for closed filling, distributing cranes of the RP-40 type are installed. After the hoses are connected, the fuel dose necessary for refueling is installed on the 9 dispenser, the hydrant column valve and the valve installed at the inlet to the refueling unit are opened.

Fuel pressurized by the sleeve 2 enters the filter-water separator 4, then stream it is distributed in two separate communications, in which is set the same equipment: a pressure regulator 5, an air 6, counter dispenser 9, flow regulator 11, venturi 12 dispensers sleeve 14. Communication can work together- and separately.

If necessary add to the anti-icing liquid fuel during refueling 8 valve opens, and fluid from the reservoir starts flowing 7 10 the dispenser, which is at a predetermined ratio injects liquid fuel into a stream going to a gas station. Once over the counter dispensing a predetermined amount of fuel to be held on the issue, the counter automatically stops refueling. Then close the valve and hydrant column disconnected hose filling unit.

Upon completion of filling performed suction of fuel dispensing hose in the drain tank by a pump 16 17. If the drain tank is full, the fuel from it can be pumped into the tank of another aircraft or tank truck. Pumping of fuel from the tank is made pump unit or a special device.

On the mobile refueling units are installed special countable metering devices such as UMTS, USDT and 86-3-02k. The desired mode of supply of fuel at a gas station is provided with a pressure regulator and flow 5 11.

Depending on the type of aircraft powered with total capacity of filling machines can be: two dispensing hose from the 700 4000 to l / min, and in one arm of the 300 2000 to l / min. The pressure at the inlet of the filling unit must be 7-8 kgf / cm2And the output 2-4 kgf / cm2.

Fig. 7 shows a mobile refueling unit, mounted on a special trolley. It performs the same operations as discussed above charging unit. Such trailer devices leverage at the airport with a large flow coefficient and refueling. Such units, for example, can be used to fuel large aircraft (An-124, An-225, Boeing -747/767/777, BUT-380/340), fuel tanks which can accommodate more than a hundred tons of fuel. It is most advantageous to operate them in conjunction with a self-propelled filling unit as part of a road train. So, refueling will be performed immediately on both sides of the aircraft, which can reduce the time required for refueling a particular aircraft and bring profit from flight operations.

Figure 7 - A general view of the charging unit mounted on a trolley

1 - receiving sleeve with a tip; 2 - housing; 3 - control panel; 4 - counter

Refuelling aircraft. Refuelling equipment airports.

Dc xnumx m

TSZT 4 (4M / 4M2)

MAN TGL 8.150 4x2 Euro3

Petrol Renault

MAZ 4370 mobile unit

Military refueling unit Peugeot

FOR TSZSVS system Mercedes