RU2718490C1 - Drain device with possibility of car-by-car recording and pumping of oil products from railway tanks to storage reservoirs - Google Patents

Abstract

FIELD: oil and gas industry; measuring equipment.

SUBSTANCE: draining device with possibility of car-by-car recording and pumping of oil products from RW tanks into storage reservoirs relates to devices intended for measurement of mass and other parameters (volume, density and temperature) and can be used at oil depots and warehouses for storage of other liquids and is provision of car-by-car recording and pumping of product from RW tank to corresponding reservoir. Drain device with possibility of car-by-car recording and pumping of oil products from RW tanks to storage reservoirs includes drainage and metering units, each of which includes: hinged pipeline with connection device to RW tank; product availability sensor; monoplock unit electric pump; flow meter; check valve; manifold (switch); electronic control unit; device for monitoring earthing of RW tank.

EFFECT: provision of car-by-car recording and pumping of product from RW cistern to corresponding reservoir.

1 cl, 3 dwg

Description

The invention relates to a drain device with the possibility of wagon-based metering and pumping of petroleum products, designed to measure mass and other parameters (volume, density and temperature) and can be used in oil depots and warehouses for storage of other liquids.

The technical result of the invention is to provide a drain with the possibility of wagon accounting and pumping of the product from the railway tank to the corresponding tank.

The hydraulic flow diagram of the products is shown in FIG. one.

The closest are known technical solutions:

- patent 2088507 C1 "Device for lower discharge and filling of railway tanks", which is designed to drain oil from railway tanks.

However, this device has several disadvantages:

1. Does not have its own pressure line, as it does not include an electric pump - a monoblock.

2. Inability to obtain information on the amount of received product from the railway tank.

3. It is not possible to drain different products into certain pipelines, since there is no product switch (manifold).

- Patent 2561020 C2 “System for automatic control and metering of petroleum products”, which is intended for group metering of petroleum products from several railway tanks using drainage plants equipped with their own electric pumps and manifolds, from which the petroleum product is fed through collector pipes to group metering units and further to tanks.

However, this system has several disadvantages:

1. The inability to obtain information on the amount of product received from each railway tank while draining several railway tanks.

2. The inability to carry out the simultaneous acceptance of the product into the tank and its shipment taking into account tankers, since the measurement of the product during acceptance and dispensing is carried out through one measuring device, a flow meter in the group metering unit.

The invention is illustrated by a hydraulic circuit and drawings (Fig. 1), which includes:

- articulated pipeline with a connecting device to the railway tank 1;

- product availability sensor for controlling plants 2;

- electric pump - monoblock 3;

- flow meter 4;

- check valve 5;

- manifold (switch) for connecting the product and the corresponding collector of product collection 6;

- grounding control device for railway tanks;

- electronic control unit;

The product is drained from the railway tanks into storage tanks by draining devices with the possibility of wagon accounting and pumping (Fig. 2, Fig. 3).

Product is supplied from the railway tanks to the tank by the pressure of an electric pump - a monoblock of the discharge unit with the possibility of wagon-based metering and pumping through a flow meter, check valve and manifold (switch).

For example, it is necessary to take the AI92 gasoline product from the railway tank No. 1 to tank 92. The central operator, using the software product “Workstation for Acceptance of Storage and Leave”, assigns the product wiring path by issuing permission to open the drain valve K4 of the installation, other valves K1; K2, K3 must be closed. The valve K5 and the valve of the emergency protection system K5 ^{1 are} installed in the reservoir 92. The K5 valve ^{1 is} normally open, controlled by the emergency protection system, and the K5 valve is controlled by the operator’s workstation. To supply the AI 92 product from the railway tanks, the operator, in our case, gives a command to open the K5 valve and starts the acceptance process.

Claims (14)

1. The drain device with the possibility of wagon-based metering and pumping of oil products from railway tanks to storage tanks contains a drain and metering unit, each of which includes: - articulated pipeline with a connecting device to the railway tank; - product availability sensor; - electric monoblock pump; - flow meter; - check valve; - manifold (switch); - electronic control unit; - grounding control device for railway tanks. 2. A drain device with the possibility of wagon-based metering and pumping of oil products from railway tanks to storage tanks according to claim 1, characterized in that: - control of the acceptance process (reliability of opening the manifold valve corresponding to the brand of product used) by installing position sensors on the cranes, is controlled by the central operator using the AWP software product operator for receiving and storing and dispensing the product and permission is given to start the acceptance process; - the choice of the reservoir and the management of the process of delivering the product to the desired reservoir is carried out by developing a command to open the necessary valves at the reservoirs using the automated workstation software product of the operator for receiving and storing and dispensing the product under the control of the central operator; - checking the accuracy of product acceptance by drainage devices with the possibility of wagon metering and pumping is carried out using a flow meter installed in each installation; - verification of the accuracy of acceptance of the product by devices using the reference unit for measuring mass, volume, density and temperature is carried out by draining the product from the filled capacity of the reference calibration unit with a product of known volume, mass and density through the unit for acceptance and wagon accounting of the product and by comparing the indicators of the discharge installation panel with the monitor AWP operator.

Images