RU28682U1 - The complex is measuring - Google Patents

Description

COMPLEX MEASURING

The utility model relates to devices for filling automobile and railway tanks with oil products. The closest analogue to the claimed Utility model is the well-known automated loading system ASN-5M "Delta. The ASN-5M Delta system incorporates a bulk riser, a liquid meter, a shut-off valve, a liquid filter, and a pump unit mounted in an arch. The Delta system is designed for loading only automobile tanks. The disadvantages of this system are the lack of a gas separation device, as a result, the release of oil product vapors into the atmosphere, which increases fire and explosion hazard, the lack of a platform for servicing the tank operator, the insufficient accuracy of calculating the mass of the oil product taking into account the temperature coefficient, due to the lack of temperature sensors. The proposed ASN measuring complexes (hereinafter referred to as complexes) are intended for measuring the amount of oil products in volume units and calculating the mass when dispensed into automobile and railway tanks and controlling the loading (discharge) process during accounting and settlement operations.

1. Measuring complexes, containing bulk risers, liquid meters, shut-off valves, liquid filters, pump units, characterized in that the hydraulic unit is equipped with a densitometer, a temperature sensor, a gas separator, a smooth control shut-off valve and a drainage system.

2. Measuring complexes according to claim 1, characterized in that the riser is made folding, and is also equipped with a garage position sensor and an electrically controlled air valve.

3. Measuring complexes according to claim 1, characterized in that in their composition they can have the number of risers, determined by the requirements of the customer.

4. Measuring complexes according to claim 1, characterized in that the filling tip is made telescopic, hermetic, with the possibility of venting.

5. Measuring complexes according to claim 1, characterized in that they are equipped with operator platforms with folding ladders incorporating garage position sensors, entrance stairs, roof, drip trays.

6. The measuring complexes according to claim 1, characterized in that they are equipped with input and output barriers with traffic lights.

The proposed complexes allow:

- ensure the safety of the operator (maintenance personnel);

- to ensure the removal of oil vapor to a safe distance from the place of loading, this will allow them to be disposed of at special facilities, increase fire safety and significantly reduce emissions of oil vapor into the atmosphere;

-automatize the local control of the release of the product with the help of controllers having an interface with a computer system for managing the tank farm;

- measure the volume of the pumped product, its temperature (density), calculate the mass of the product, print documents and the possibility of using a fiscal registrar;

-provide the filling technology with variable output of the product at the beginning and end of the filling, which reduces the degree of electrification of the product during filling and increases the accuracy of the delivery of a given dose;

-to filter and degass (gas separation) of the product, i.e., the separation of air bubbles during filling;

-to provide control of the grounding of the tank;

-to ensure control of the limit level when loading oil into tanks, and emergency shutdown of the installation if it is exceeded

-control the accuracy of product dispensing at any time during operation, by pouring a control volume into a second-order reference mobile measuring device with a capacity of 2000 dm with an accuracy of ± 0.05%, and adjust the measuring systems to an error not exceeding ± 0.15% directly on each measurement channel, without dismantling the nodes (with a specific loading capacity);

-to make a total record of each of the poured products separately, from the moment the installation is launched;

-product vacation of two different products, on two bulk risers at the same time;

- make a vacation through one bulk riser from one to two types of products (sequentially, one after another) without mixing them.

provide visualization of the loading process at the operator’s site.

ASN measuring complexes have a number of modifications that differ from each other in the number of types of fuel delivered (hydraulic units) and the number of risers (loading posts), and in the structural design of the frame (metal structure).

The complexes consist of the following main blocks: hydraulics; loading post; management.

The essence of the proposed measuring complex is illustrated by drawings.

In FIG. 1 shows the mutual arrangement of the blocks of the complex measuring for dispensing petroleum products to tankers.

Figure 2 shows the relative position of the blocks of the complex measuring for dispensing petroleum products to railway tanks.

In FIG. 3 is a schematic diagram of a hydraulic circuit of a measuring complex for dispensing petroleum products to tankers.

In FIG. 4 is a schematic hydraulic diagram for dispensing petroleum products to a railway tank.

The photograph shows a general view of a measuring complex for dispensing petroleum products to tankers.

The hydraulic unit (Fig. 1 pos. 15 and Fig. 2 pos. 9) is a piping system in which a valve, an electric pump, a gas separator, a filter, a liquid volume transducer and a control valve are installed.

The loading post block is a metal frame (Fig. 1 pos. 5 and Fig. 2 PO3.5), on which the operator’s platform is located and is mounted from one to four folding folding risers (Fig. 1 P03.1 and Fig. 2 pos. 1,2).

The control unit consists of:

- hardware and software complex “ASN - Prompribor;

- a programmable logic controller with an indication device for processing and displaying the performed technological operations for product dispatch by the operator at the loading post;

- Remote control (remote control), installed in the control room;

- a set of an automatic barrier device for tank farms (a barrier with a traffic light - only for filling tankers). The control unit provides:

data collection during measurements; management of loading modes; control of shutoff valves with electric drive; formation of reporting documents; archiving and data storage.

The proposed distribution of blocks of elements that make up the measuring complexes, allows to ensure their operation with the greatest efficiency.

The control system of the complex by measuring ASN is based on a constant interrogation by the controllers of the state of the technological sensors of the complex. It allows you to receive operator’s commands from a central computer to issue a specific type of product through a specific channel, as well as to dispense a product with control over the operator’s sequence of operations when loading and issuing him permissive prohibition information before the filling process, and after loading digital information in the process of loading. The measuring complex works as follows:

- the operator installs a filling tip in the neck of the tank;

- low flow is switched on, the telescopic tube of the filling tip moves under the action of the fluid flow to the bottom of the tank and remains in this position until the flow ceases;

- at a low flow rate at the beginning of loading, in the outlet of the filling tip, a product speed of less than 1 m / s is ensured during the holiday of 15% of the set dose (up to 200 l). Then, the nominal flow rate (max flow valve) is turned on, while the fluid velocity in the outlet pipe is about -3.5 m / s, at this flow rate

,

filling the tank up to 90% of its volume, when this value is reached (50 l before the end of the dispensing), a low flow rate (min flow valve) is turned on and filling up to a given dose at a low flow rate is performed.

The values of the initial and final volume of petroleum products sold at low flow rate are set and programmed at the place of operation.

To eliminate the operator’s error, when setting the dose, a sensor for the maximum level of oil product remote control is installed in the bulk pipe, which gives the command to stop filling without operator intervention.

The loading process can also be terminated by the command of an operator located on the lower platform of the complex’s metal structure (moving the control lever of the KU-92 control unit to the leftmost position) or directly on the bulk telescopic tip (DP - STOP button). The operator observes the loading process on an electronic digital display located on the lower platform of the complex’s metal structure (KUP-40 controller).

At the end of the filling process, the operator, having uncoupled the hook, removes the filling tip from the neck of the tank, closes the filling hatch, sets it in the garage position - in the receiving cup of the support (drip pan), which is connected to a buried tank, thereby preventing the process of spilling fuel from the inner walls of the bulk tip.

The vapors are removed from the tank via a bulk riser through a flexible piping system.

Oil product vapors discharged from the tanker truck can be diverted through the fire arresters back to the tank, using the recycling technology, disposed of in a special installation using the vapor recovery technology, or released into the atmosphere to the candle through the fire guard, on a safe

distance from the complex

Bibliographic data:

1. Automated system for filling tankers with light oil products of the ASN-5M type “Delta. Specifications TU 25-02.895-76.

Authors: Ershova Natalya Vasilievna Avdeev Ivan Semenovich 24--

/ /.X., (I.

Claims (6)

1. The measuring complex, which includes bulk risers, liquid meters, shut-off valves, fluid filters, pumping units, characterized in that the hydraulic unit is equipped with a densitometer, a temperature sensor, a gas separator, a smooth control shut-off valve and a drainage system. 2. The measuring complex according to claim 1, characterized in that the riser is made folding, and is also equipped with a garage position sensor and an electrically controlled air valve. 3. The measuring complex according to claim 1, characterized in that in its composition may have the number of risers, determined by the requirements of the customer. 4. The measuring complex according to claim 1, characterized in that the filling tip is made telescopic sealed with the possibility of venting. 5. The measuring complex according to claim 1, characterized in that it is equipped with operator’s platforms with folding ladders, which include garage position sensors, entrance stairs, roof, drip trays. 6. The measuring complex according to claim 1, characterized in that it can be equipped with exit barriers with traffic lights.