RU148277U1 - ACCOUNTING REDUCTION HEAD - Google Patents

Abstract

1. An accounting and reduction head installed on a gas tank and including a head flange on which are installed fillers, pipelines and shut-off valves, a loading line and a drain line for liquefied hydrocarbon residues, a vapor phase exit line including pipelines, a safety shut-off valve and relief valve, low pressure regulator and valve, as well as an indication line for the level of filling of 85% of the volume of the gas tank with liquefied hydrocarbons and a pressure sensor, characterized in that filling line mass flow meter installed in the liquefied hydrocarbon vapor outlet line gas meter installed in the transmitter head further inserted, a pressure sensor installed in the flange golovki.2. Accounting-reduction head according to claim 1, characterized in that the low-pressure regulator is made integrally with a safety shut-off valve and a safety relief valve.

Description

The utility model relates to the structural elements of vessels and their filling or releasing devices, in particular, to special devices of indicating, measuring and control devices and can be used to record filled hydrocarbons in a liquefied state in a gas tank and to account for the volume of the vapor phase of liquefied hydrocarbons given to consumers; reducing the vapor phase of liquefied hydrocarbons, as well as to control the level of liquefied hydrocarbons in gas tanks, the pressure of the vapor phase of liquefied hydrocarbons, and preventing the supply of increased pressure to consumers.

Known head for filling and distribution of gas under pressure, presented in C. No. 2008121183 by class F17C 13/04, z. 10/18/2006, op. 12/10/2009.

The known gas filling and distribution head (2) is intended to be installed in an opening of a gas storage tank under pressure, comprising a mounting portion (21) intended for placement in a reservoir opening, and a reducing portion comprising a reducing device (22) located relative to the mounting portion ( 21) so that it at least partially enters the tank when the head is in the mounted position, while the head (2) contains a filling circuit made between the first an assembly containing a filling hole (6) and a second end for communicating with the interior of the tank, a sampling circuit made between a first end for communicating with the interior of the tank and a second end containing a sampling opening, characterized in that (6) Filling coincides with the selection hole.

In this case, the filling and distribution head contains a shut-off element (8), such as a valve, which is located relative to the mounting section (21) so as to at least partially go inside the tank volume when the head (2) is in the mounted position the opening of the tank (1), and is configured to be actuated by opening and / or closing by means of a drive element external to the head (2), wherein the shut-off member (8) extends at least partially into the head volume and is accessible d For the drive element external to the head (2), through the access hole made in the head (2) and coinciding with the hole (6), intended both for filling and for selection, while the shut-off element (8) is located at the back reduction device (22) on the selection circuit between the first end and the second end of the selection circuit.

A disadvantage of the known head is that it is intended only for gas and does not have flow control, density, level pressure controls.

Known reduction head "3065-00A" manufactured by the Enterprise of technological equipment, the city of BUZEU, Romania, serial number 1208, presented in the Passport dated 06/02/1989 (see Appendix) and selected as a prototype.

The known reduction head consists of a head flange and several lines: a filling line, a residue discharge line, a vapor phase exit line, and a line for indicating levels of filling of 10%, 40% and 85% of the volume of the gas tank with liquefied hydrocarbons. In this case, the liquefied hydrocarbon filling line consists of pipelines, a shut-off valve and a neck, the drain line of gas residues consists of pipelines, a shut-off valve and a neck, the vapor phase exit line consists of pipelines, a safety shut-off valve, a low pressure regulator, a valve, and a level indication line fullness consists of piping and a valve.

The filling line is used to discharge liquefied hydrocarbons from tankers into the gas tank. The residue discharge line is used to drain residues of liquefied hydrocarbons from the drainage pit of the gas tank before servicing the gas tank or pressure head. A low pressure regulator installed on the vapor phase exit line reduces the vapor phase of the gas before supplying the vapor phase of liquefied hydrocarbons to consumers. The safety relief valve is part of the pressure regulator and discharges the vapor phase of liquefied hydrocarbons into the atmosphere when the output pressure rises abnormally. The safety shut-off valve is designed to shut off the outlet pipe in the event of an emergency increase in outlet pressure. The line for indicating the filling level of the gas tank serves to control the level of liquefied hydrocarbons. There is a pressure gauge installed at the outlet of the vapor phase line.

The known reduction head is a very reliable device, but it does not allow to keep track of liquefied hydrocarbons in a liquid and gaseous state, due to the lack of technical means for measuring flow, level, density and pressure control.

The objective is to expand the functionality of the head - accounting for filling, consumption, hydrocarbon residues, parameter control.

The problem is solved in that in the registration and reduction head installed on the gas tank and including the head flange on which the necks, pipelines and shut-off valves are installed, the filling line and the discharge line for the liquefied hydrocarbon residues, the vapor phase exit line including pipelines , a safety shut-off valve and a safety relief valve, a low pressure regulator and a valve, as well as an indication line for the filling level of 85% of the volume of the gas tank with liquefied hydrocarbons and a pressure sensor Nia UNDER THE UTILITY MODEL, in filling lines mass flowmeter installed in the vapor phase output line liquefied hydrocarbon gas meter installed in the transmitter head further inserted, a pressure sensor installed in the flange of the head.

In this case, the low pressure regulator can be made integrally with a safety shut-off valve and a safety relief valve.

The installation of a mass flow meter in the filling line makes it possible to measure the mass flow rate, temperature and density of liquefied hydrocarbons, and the use of a gas meter in the vapor phase exit line of the hydrocarbon meter allows you to record the vapor phase dispensed to the consumer and reduce the vapor phase of liquefied carbohydrates if necessary. Introducing a level gauge into the head allows more accurately and continuously measuring the level of gas tank filling with liquefied hydrocarbons, keeping track of the level of liquefied hydrocarbons in the gas tank, and monitoring the process of draining liquefied hydrocarbons from a tank truck. Installing a pressure sensor in the head flange allows you to control the pressure of the vapor phase of liquefied hydrocarbons in the gas tank. Together, the use of the above means expands the functionality of the head.

EFFECT: provision of the possibility of measuring hydrocarbon parameters in a liquefied and gaseous state.

The claimed registration and reduction head has a novelty in comparison with the prototype, differing from it in such essential features as the installation of a mass flow meter in the filling line, the presence of a gas meter in the vapor phase outlet line, the introduction of a level gauge, and the installation of a pressure sensor in the head flange, which ensure aggregate achievement of a given result.

The declared registration-reduction head can be used to record the filled hydrocarbons in a liquefied state in a gas tank and to account for the volume of the vapor phase of liquefied hydrocarbons given to consumers; reduction of the vapor phase of liquefied hydrocarbons, as well as for monitoring the level of liquefied hydrocarbons in gas tanks, the pressure of the vapor phase of liquefied hydrocarbons; prevent the supply of increased pressure to consumers during the gasification of residential buildings, household and agricultural facilities, and therefore meets the criterion of "inventive step".

The utility model is illustrated by drawings, on which:

- FIG. 1 - General view of the registration and reduction head;

- FIG. 2 is a view of a line for loading liquefied hydrocarbons;

- FIG. 3 is a view of a vapor phase exit line of liquefied hydrocarbons with separately made gas regulator and safety valves;

- FIG. 4 is a view of an outlet line of a vapor phase of liquefied hydrocarbons with a gas regulator and safety valves made integrally;

- FIG. 5 is a view of a line for indicating a gas tank fullness level and a discharge line for liquefied hydrocarbon residues.

The claimed registration and reduction head (Fig. 1) consists of a head flange 1, a level gauge 2, a pressure sensor 3, a line for loading liquefied hydrocarbons (Fig. 2), an exit line for the vapor phase of liquefied hydrocarbons (Fig. 3), line 4 for level indication 85 % fullness of the volume of the gas tank with liquefied hydrocarbons, line 5 discharge residues of liquefied hydrocarbons.

The liquefied hydrocarbon filling line (Fig. 2) consists of pipelines 6, neck 7, valve 8, mass flow meter 9. Moreover, the valve here and hereinafter represents, for example, a ball valve, and Coriolis, in particular, serves as a mass flow meter 9 flow meter.

The vapor phase exit line (Fig. 3) of liquefied hydrocarbons consists of pipelines 10, a low pressure regulator 11, a safety shut-off valve 12, a gas meter 13, a safety relief valve 14, and a valve 15. A ball valve can be used as a valve 15. In this case, the low-pressure regulator 11 can be made integrally with the safety shut-off valve 12 and the safety relief valve 14 (see Fig. 4).

Line 4 indicating the level of 85% fullness of the volume of the gas tank with liquefied hydrocarbons (Fig. 5) includes pipelines 16 and a locking nut 17. Line 5 drain residues (Fig. 5) includes pipelines 18, neck 19, valve 20.

A pressure sensor 3 and a level gauge 2 are installed on the head flange 1.

The work of the reduction head is as follows.

The liquefied hydrocarbons are poured into the gas tank (not shown in the drawings) through the liquefied hydrocarbon filling line (Fig. 2). The pipeline of the tanker truck (not shown in the drawings) is connected to the neckline 7 of the line and through the pipeline 6 liquefied hydrocarbons are poured into the gas tank; in the process of filling, the mass flow meter 9 takes into account the liquefied hydrocarbons filled into the gas tank.

The vapor phase is supplied to consumers through the vapor phase exit line (Fig. 3). A low pressure regulator 11 with a safety shut-off valve 12 is installed on this outlet line, which reduces the vapor phase of liquefied hydrocarbons and closes the pipeline 10 in the event of an emergency pressure increase. After the regulator 11, a gas meter 13 is installed, which keeps track of the vapor phase of the liquefied hydrocarbons supplied to the consumer. In the pipeline 10 for supplying the vapor phase to the consumer, a valve 15 and a relief valve 14 are installed, which relieves the increased emergency pressure of the vapor phase.

Through line 5 drain residues from the drainage pit (not shown in the drawings), the residues of liquefied hydrocarbons are poured before servicing the gas holder or the reduction head. The level gauge 2 is used in the process of filling the gas tank, line 4 shows the filling of the gas tank to the level of 85% of its volume. During the consumption of the vapor phase of liquefied hydrocarbons, the level of liquefied hydrocarbons is controlled by a level gauge 2 installed in the head flange 1. The vapor phase pressure in the gas tank is controlled by a pressure sensor 3, also installed in the head flange 1.

In comparison with the prototype of the inventive registration-reduction head has wider functionality.

Claims (2)

1. An accounting and reduction head installed on a gas tank and including a head flange on which are installed fillers, pipelines and shut-off valves, a loading line and a drain line for liquefied hydrocarbon residues, a vapor phase exit line including pipelines, a safety shut-off valve and relief valve, low pressure regulator and valve, as well as an indication line for the level of filling of 85% of the volume of the gas tank with liquefied hydrocarbons and a pressure sensor, characterized in that filling line mass flowmeter installed in the vapor phase output line liquefied hydrocarbon gas meter installed in the transmitter head further inserted, a pressure sensor installed in the flange of the head. 2. The accounting reduction head according to claim 1, characterized in that the low-pressure regulator is made integrally with a safety shut-off valve and a safety relief valve.

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