How to operate and connect the interface when transferring oil between two eight ton tankers?

The oil is refueled in the tank through the oil pump, and its operating procedure is: connect the oil pipe to the oil source at the outlet 3, open the three-way ball valve D and F, close the ball valve A and C, open the power take-off switch, make the oil pump start to work, and you can want to refuel in the tank. The oil passes through the three-way ball valve of the oil outlet, the strainer, the oil pump, the ball valve B, the oil tank (where A, C, and E are all closed).

3. Pump oil to the tank of the tanker (not metered).

The operating procedure is: at the outlet 2 oil pipe to the input oil depot, the three-way ball valve D and E are opened, the ball valve B and C are closed, and the power take-off switch is opened, and the oil can be pumped to the outside of the tank. The oil passes through the submarine valve, the three-way ball valve, the strainer, the oil pump, the ball valve A outlet 2 (where B and C are closed).

4. The operating procedure of pumping oil (metering) outside the tank to the tanker is: connecting the oil pipe to the input oil depot at outlet 1, opening the three-way ball valve D and E, closing the ball valve A and B, and opening the power take-off switch, you can pump oil to the outside of the tank and measure. The oil passes through the submarine valve, the three-way ball valve, the strainer, the oil pump, the ball valve, the flowmeter, and the outlet 2 (where A and B are closed).

5. Use the oil tanker as the mobile pumping station mobile pumping station function

The oil from A can be transported to B by an oil pump. Its operating procedure is: connect the output oil pipe at the outlet 2, connect the input oil pipe at the interface 3, open the three-way ball valve D and F, close the ball valve B and C, open the power take-off switch, and the mobile pumping station can be realized.

The oil passes through outlet 3, three-way ball valve, strainer, oil pump, ball valve A outlet 2 (where A and B are closed).

6. Tank truck self-unloading and self-flowing output oil:

It is possible through three outlets:

A: Outlet 1 is connected to the output oil pipe, and B and C are opened and A and E are closed;

B: Outlet 2 is connected to the output oil pipe, opening A, B, and closing C, E;

C: Outlet 3 is connected to the output oil pipe, E and F are opened, and B and D are closed;

D: Oil passes through the submarine valve ball valve B ball valve C flowmeter outlet 1 (where A and E are closed);

E: The oil passes through the submarine valve ball valve B ball valve A outlet 2 (where C and E are closed);

F: The oil passes through the submarine valve three-way ball valve E F outlet 3 (where b and d are closed).

1) when unloading oil and gas plus oil, the oil tanker and the oil tank must be provided with the oil and gas connection port for the oil and gas connecting hose, otherwise the oil and gas discharged from the underground oil tank can not be returned to the oil tank of the tank truck. In order to close the system before removing the oil and gas communication hose after unloading, so that the oil and gas in the tank truck and the oil tank do not leak, the oil and gas ** pipeline joint of the oil and gas tank truck should also be equipped with a manual valve (usually a ball valve should be used).

2) in order to facilitate pipeline connection, the operation interface of the closed unloading pipeline should be provided with quick coupling and stuffy cover, so that the mouth of the quick joint can play a protective and sealing effect. In order to make the oil and gas after unloading, the system can be closed before the oil and gas connection hose is removed, so that the oil and gas in the underground oil tank do not leak. A manual valve should be installed before the oil and gas pipeline interface (referring to the quick connection at the end of the oil and gas pipeline directly connected by the underground oil tank) in the station.

4) when the unloading of gasoline tanker adopts closed oil and gas ** system, because the oil tank is in a closed state, it is inconvenient to directly observe the actual liquid level in the oil tank manually in the unloading process, in order to reflect the liquid level height in the tank in time and prevent the liquid level in the tank from exceeding the safe height, the underground oil tank should be provided with a liquid level gauge with high liquid level alarm function.

If you buy a car there, you have to ask there, and the tank truck assembly is different in each place.

To put it simply, it is to say that the oil pumping and draining are the four-position three-way valves, which are slowly adjusted to see, and our long car is like this.

Connect the grounding wire before filling the oil, and always check whether its defective condition and grounding resistance meet the anti-static standard.

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When loading oil, it is necessary to extend the crane pipe to the bottom of the oil tank, and the nozzle should be insisted on about 15cm from the bottom of the tank, and the initial velocity of filling should be strictly controlled within 1m s, until the oil outlet is submerged and then gradually increase the flow rate, but the maximum flow rate shall not be exceeded, so as to eradicate the electrostatic incident caused by splashing;

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After the oil is loaded, it is necessary to disconnect the grounding after 5min of oil stabilization. Because after the oil is loaded, because the oil moves in the tank, the oil level potential will persist for several minutes.

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Avoid electrifying people. When loading and unloading work, the human body must touch the work target tanker truck and work object to cause conflict, which is very simple to have static electricity, and can constitute electrostatic discharge, if it happens to encounter flammable and explosive oil vapor at this moment, it will be a blasting incident. It is necessary for the operator to wear anti-static overalls and anti-static shoes during operation, the intention of which is to ground the human body.

In addition, the shoes worn should be thin nylon socks or other conductive socks, and it is forbidden to post insulating film on the anti-static soles, and they should be checked regularly.

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Use equipment that meets technical standards and safety requirements. It is necessary to regularly inspect and calibrate the automatic control, remote control, metering, valves and other equipment of the oil generating station, and formulate relevant management systems, especially the raw materials of the oil generating equipment.

Together with the electrostatic grounding device can not be compromised, must be strictly in accordance with the standard, carefully installed, regularly checked. For the current use of clamps and magnetic joints grounding, should not be clamped or adsorbed at random in the tank truck, or even on the surface of the paint.

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Attention should also be paid to the incidents constituted by the "conversion of oil". If the diesel is written into a tank rich in gasoline vapor, the gasoline vapor is absorbed by the poured diesel fuel and the pressure is reduced, and then the air is sucked into the tank, and somewhere between the liquid surface and the air intake point constitutes a flammable mixture, and the blasting incident will occur in case of static electricity accumulation discharge. Therefore, when it is necessary to "change the oil", it is necessary to remove the gasoline in the tank first, and work in strict accordance with the operating procedures.

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Aluminum alloy European standard tank mouth, also known as manhole cover, is installed on the top of the oil tank, with built-in breathing and emergency exhaust functions, and can be installed on the manhole cover oil and gas valve, oil measuring hole, anti-overflow probe, etc., anti-overflow sensing system In the process of oil loading, when the liquid level reaches the detection position, the sensing system will automatically alarm, so as to stop the oil loading. The built-in breathing valve keeps the internal pressure of the oil tank stable in the process of oil transportation, and reaches a balance with the external pressure, and its dumping to prevent overflow design makes the tank truck stay sealed in the event of an accident, and the emergency exhaust device will automatically open and release the pressure in the tank in the case of a sharp increase in the pressure in the tank, so as to prevent the occurrence of accidents and greatly improve the safety of oil transportation.

The main product accessories of the bottom oil tanker are: manhole cover, oil and gas valve, oil and gas joint, submarine valve (emergency shut-off valve), oil discharge valve, anti-overflow sensor, etc. The product has the advantages of reasonable design, advanced technology, safety and reliability, energy saving and environmental protection.

1. Submarine valve.

Pressure-balanced subsea valves are used for multi-bin tanker trucks, which can be loaded and unloaded separately from different tankers. The tee design simplifies the pipeline, reduces the load, is simple to operate, safe and reliable.

Pneumatic shut-off valve is installed at the bottom of the tank body of the tanker, can be refueled bottom, the internal pressure of the valve is small, the flow is large, the flange side of the valve body has a cut-off groove, in the event of an accident in the oil tank, because the broken groove is in the inability to bear too large impulse, the body pipeline and the tank will be automatically disconnected, and the automatic centering plunger and durable spring will still remain sealed, and the medium in the tank will not leak, so as to ensure the safety of the tank. When there is no air source or other reasons can not be opened, the cylinder piston rod can be folded open and opened manually.

The ** written upstairs is lush, but there are a few additions.

1. Generally, the tank truck has an entry inspection, including vehicle condition, flame arrester, grounding wire, etc.

2. Check the vehicle information and confirm the loading of oil products (tanker trucks and diesel shall not be mixed, and tankers with multiple oil tanks must be clearly marked);

3. Check the personnel information, and generally do not have vehicles without escorts.

Oil tank truck: also known as mobile fuel truck, computer tax control fuel truck, oil tanker, oil loading truck, oil truck, oil truck, oil truck, oil truck, oil truck, edible oil truck, mainly used for the transportation and storage of petroleum derivatives (gasoline, diesel, **, lubricating oil and coal tar and other oil products).

According to different uses and use environments, there are a variety of refueling or oil transportation functions, with oil absorption, pump oil, a variety of oil packaging, distribution and other functions. The special part of the oil truck is composed of tank, power take-off, transmission shaft, gear oil pump, pipe network system and other components. The pipe network system consists of an oil pump, a three-way four-position ball valve, a two-way ball valve, a strainer and a pipeline.

I don't know how the company stipulates the specific operating procedures, but I feel that the two are still a little safer, because if the only one has an occasional failure, the charge can not be released well, and the probability of generating electric sparks will be greatly increased, after all, the fuel tanker is not a joke.

This one you're talking about is a seabed hair, and that one needs to be removed and replaced, and there is a sealed mat inside, so you have to remove it to replace it.

The tanker truck and the body do not have to be grounded separately. I want to hear it.

To be on the safe side, it's best to take two.