RU61838U1 - MOBILE GAS FILLING COMPLEX - Google Patents

Abstract

The utility model relates to the field of transportation and storage of gases and can be used for refueling vehicles, agricultural machinery, power plants operating on compressed natural gas, as well as for refueling other stationary and domestic consumers of compressed natural gas. A mobile gas filling complex contains a vehicle on which gas vessels are mounted, grouped by means of gas fittings in sections, a module for controlling gas filling and distribution to consumers, as well as a booster unit. The booster unit is made in the form of a hydraulic drive compressor, the output of which is connected by pipelines in which there are shut-off valves, with at least one vessel of each section, each section of the vessels is equipped with an individual pipe with a shut-off valve for filling with compressed gas, and an individual pipe for the delivery of gas from sections to consumers, each of which is connected through a shut-off valve to an outlet pipe in which a filter, a gas pressure regulator and a shut-off valve are installed, wherein the outlet pipe It has the ability to connect with at least one dispensing sleeve and with a gas pressure relief pipe in which a shut-off valve is installed. 1 file, 2 ill.

Description

The utility model relates to the field of transportation and storage of gases and can be used for refueling vehicles, agricultural machinery, power plants operating on compressed natural gas, as well as for refueling other stationary and domestic consumers of compressed natural gas.

Known mobile gas filling complex containing a vehicle, on the frame of which are mounted high pressure vessels, grouped in sections and two ungrouped vessels, in which movable separators divide the volume of vessels into liquid and gas cavities. The vessels grouped in sections are interconnected by pipelines in which check valves are installed in series.

A section of one pipeline between the valves is connected to the gas cavity of one vessel, and a section of another pipeline between the other valves is connected to the gas cavity of another vessel. The fluid cavities of the above-mentioned vessels are connected to the pressure line of the pump and the hydraulic tank, and these vessels are equipped with finite elements that can interact with the control unit of the distributor.

Gas sections are equipped with valves. The valves are also provided with hydraulic lines connecting the liquid cavities of the vessels with the distributor.

The refueling unit of the complex contains a non-return valve and valves installed on the pipelines connecting the inlet of the non-return valve to the sections of the vessels.

The car refueling unit contains valves installed on pipelines connecting the refueling unit with the vessel sections.

The inlets of the pipelines connecting the sections are connected by a low pressure line through a check valve and a valve.

The pump inlet of the booster unit is in communication with one of the liquid cavities of the vessels.

(see RF patent No. 2199052, class F 17 C 5/06, 2003) is the closest analogue.

As a result of the analysis of the design of a well-known gas tanker, it should be noted that it is rather complicated in terms of a pneumohydraulic control scheme for gas refueling and gas delivery to consumers, due to the need to work with a large number of shut-off valves, and in addition, the presence of a known complex of ungrouped vessels divided into liquid and gas cavities, reduces the total number of gas vessels installed on the vehicle, which reduces the volume of compressed gas, transport of filling the post of consumer complex.

The objective of this utility model is to develop a mobile gas refueling complex that is structurally uncomplicated and convenient when refueling the complex from a gas storage compressor station and when refueling consumers, as well as refueling a large number of consumers.

The task is ensured by the fact that in the mobile gas filling complex containing a vehicle on which gas vessels are mounted, grouped by means of gas fittings into sections, a gas filling and distribution control module for consumers, as well as a booster unit, the new thing is that the booster unit made in the form of a hydraulic compressor, the output of which is connected by pipelines, in which there is a shut-off valve, with at least one vessel in each section, each section of the vessels is equipped with an individual pipe with a shut-off valve for filling gas with compressed gas, and an individual pipe for dispensing gas from the sections to consumers, each of which is connected through a shut-off valve to an exhaust pipe, in which a filter, a gas pressure regulator and a shut-off valve are installed, the discharge pipe being connected to with at least one dispensing sleeve and with a gas pressure relief pipe in which a shut-off valve is installed.

The installation of a hydraulic drive compressor on the vehicle and the connection of its discharge circuit with the vessels of each section and the absence of ungrouped vessels ensures the maximum volume of emptying of the vessels of the sections when refueling vehicles, the presence of a minimum number of shut-off valves in the customer’s refueling system of the complex facilitates its operation, and for refueling consumers can one section, several sections, all sections of vessels should be used.

When conducting patent decisions, no solutions were identified that are identical to those declared, and therefore, the claimed utility model meets the patentability condition “novelty”.

The information set forth in the application materials is sufficient for the practical implementation of the utility model.

The essence of the utility model is illustrated by graphic materials on which:

figure 1 - mobile gas station complex, General view;

figure 2 is a pneumatic diagram of the complex.

A mobile gas filling complex contains 1 vessels 2 for gas mounted on a vehicle (for example, on a car frame). The number of vessels mounted on a vehicle can be different and depends on the specific tasks that the complex is aimed at, the size of the vessels, the model of the vehicle, etc.

The vessels mounted on the vehicle by means of pipe fittings are combined into sections, in each of which the cavity of the vessels are connected by pipelines. The number of sections, as well as the number of vessels in each section, can be different. So, in figure 2, the vessels are combined into four sections (I, II, III, IV), each of which contains blocked 5, 4, 3, 2 vessels. This, as already noted above, does not mean that the number of vessels in each section cannot be different. So, it is quite possible to use a scheme in which sections contain, for example, 4, 4, 4, 2 vessels.

A booster unit 3 is mounted on the vehicle, made, for example, in the form of a hydraulic compressor. If the vehicle is an automobile chassis, for example, a KAMAZ automobile, then a hydraulic drive compressor is mounted between the rear wall of the car cabin and the ends of the vessels 2.

At the rear of the vehicle is a control module 4 made of two posts: a post (A) for refueling the vessels of the complex, for example, from an automobile gas storage compressor station (not shown); post (B) refueling equipment fuel tanks (cars, agricultural machinery, etc.).

Hydraulic actuator compressor 3 has the ability to connect through pipelines (positions not indicated), in which shut-off valves 5-12 are installed, with a cavity of at least one vessel of each section of the complex.

The refueling station A of the complex contains one or two (which is not fundamental) pipelines 13 with check valves 14, which can be connected to the dispensing fittings (not shown) of the gas storage station.

Each section of the complex is refueled by its own pipeline. So, refueling section 1 is carried out through pipeline 15 with the shut-off valve 16 open, refueling section I1 is carried out through pipeline 17 with the open shut-off valve 18, refueling section III is carried out through pipeline 19 with the open shut-off valve 20, refueling section IV is carried out through pipeline 21 when open shutoff valve 22.

It should be noted that check valves can be installed not on the pipeline (s) 13, but in each pipeline for refueling vessels 2 (pipelines 15, 17, 19, 21).

It is possible that the check valves can be installed both in the pipeline (s) 13 and in the pipelines 15, 17, 19, 21. This depends on the specific design of the gas filling complex and is not fundamental.

In each pipeline 15, 17, 19, 21, safety valves are installed (23, 24, 25, 26, respectively).

The gas pressure of each section is recorded by pressure gauges (27, 28, 29, 30, respectively). Pressure gauges are included in the system through pressure gauges (positions are not indicated) and provide the ability to turn off and replace pressure gauges without exhausting gas from the sections.

The constructive solution of the gas station refueling system scheme allows to refuel all sections, several sections, and one section simultaneously.

Post B refueling consumers with gas from sections I, II, III, IV includes distribution sleeves 31, the number of which may be different, for example, two. The number of sleeves 31 determines the number of simultaneously refueled consumers. The sleeve (each sleeve, if there are several) 31 includes a refueling device 32 and a pressure gauge 33. Figure 2 shows a vehicle refueling station containing two dispensing sleeves 31 connected to the exhaust pipe 34 through shut-off valves 35 and 36.

The exhaust pipe 34 is provided with a shut-off valve 37 and is connected to a gas pressure relief pipe 38 in which the shut-off valve 39 is installed.

In the exhaust pipe 34 there is a filter 40 for capturing mechanical gas inclusions, a direct-acting pressure regulator 41, a pressure gauge 42 and a thermometer 43 for recording the temperature of the charge gas are installed. The exhaust pipe is equipped with a safety valve 44.

Depending on the adopted gas delivery scheme, it can be connected to the exhaust pipeline:

- section I through the pipeline 45 and the shut-off valve 46;

- section II through the pipeline 47 and the shutoff valve 48;

- section III through the pipeline 49 and the shut-off valve 50;

- section IV through line 51 and shut-off valve 52.

The safety valves are connected by outputs to a branch pipe 53, with which through a pipe 54 through manometer valves they have the ability to connect the cavity of all vessels of all sections.

The constructive implementation of the blocks, assemblies, units, elements used in this mobile gas filling complex is known, it does not constitute the subject of patent protection and, therefore, is not disclosed in the materials of this application.

Mobile gas station operates as follows.

To refuel the vessels of the sections of the complex, the pipelines 13 are connected to the dispensing fittings of the gas storage station.

All shut-off valves are in the “CLOSED” position. The safety valves are adjusted to the maximum preset pressure of the compressed gas.

Consider several schemes for refueling vessels of the complex.

To refuel one section (for example, section I), a shut-off valve 16 is opened and compressed gas flows through a pipe 15 to the vessels of section I. The pressure of the gas charged into the vessels of this section is determined visually by a pressure gauge 27. Upon reaching the set pressure in the vessels (32 ± 1 MPa ) overlap the valve 16. Similarly, the remaining sections (II, III, IV) can be charged by switching on the corresponding shut-off valves.

It is possible to simultaneously refuel several (for example, two) sections. If it is necessary to simultaneously refuel, for example, sections I and II, the shut-off valves 16 and 18 are opened, and similarly to those described above, piping 15 and 17 are used to refuel these sections.

Possible simultaneous refueling of all sections of the complex. To do this, open the shut-off valves 16, 18, 20, 22 and gas through pipelines 15, 17, 19, 21, similarly to the one described above, simultaneously enters the vessels of all sections, ensuring their filling.

Since the vessels with gas charged in them are mounted on a vehicle, which, in fact, makes the complex mobile, mobile

gas station follows the gas station. Refueling of consumers is carried out from post B.

To ensure that consumers are refueling, sleeve 31 of post B is connected to a consumer gas tank (tank, cylinder, etc.). If, for example, two hoses 31 are provided in the construction of the complex, as shown in FIG. 2, then one of them is connected to the gas tank of one consumer, and the other to the tank of the other consumer.

The scheme of gas flow from the vessels of the complex when refueling consumers can be different. The specific scheme may depend on the amount (pressure) of gas in the vessels, the number of consumers, etc. As a rule, it is not difficult for specialists to choose the optimal refueling scheme that provides a solution to the specific problem of refueling gas containers of consumers.

As an example, consider the scheme of filling consumers from section IV of the complex into two transfer sleeves 31.

As already noted above, the sleeves are connected to the filling tanks of consumers. Next, the shutoff valves 35 and 36 of the sleeves, the shutoff valve 37 of the exhaust pipe 34 and the shutoff valve 52 are opened, as a result of which gas from the vessels of section IV through the pipe 51 enters the exhaust pipe 34 and, passing through the filter 40 and the regulator 41, provides a decrease in the charge pressure gas to a predetermined value, enters the dispensing sleeves 31. When you turn on the filling devices 32 of the sleeves 31, the gas enters the gas tanks of consumers. The gas pressure in the gas containers of consumers is determined by manometers 33, and the pressure and temperature of the gas entering the exhaust pipe is determined by manometer 42 and thermometer 43.

Upon reaching the gas pressure in the user’s refueling tanks of a predetermined value, the refueling devices 32 are turned off, stopping the gas supply to the consumers’ tanks and shut off the valves 35 and 36, the valve 37 and the shut-off valve 52. The sleeves 31 are disconnected from the consumers’ gas containers. Refueling is finished.

Next, the sleeves 31 are connected to the gas tanks of the following consumers and the cycle repeats as described above.

If the pressure in section IV is lower than the charge pressure of consumers, it is possible to turn off section IV by closing the shut-off valve 52. Further, any of sections I, II, III can be turned on. Let section III be the next section to be included in the work. To turn it on, just open the shut-off valve 50.

Further, sections II and I are likewise included in the operation by opening the shut-off valves 48 and 46.

Consumer refueling schemes are possible in which several sections or all sections are simultaneously introduced into the work.

The presence of a hydraulic drive compressor 3 in the design of the complex allows to increase the degree of emptying of the vessels when the gas pressure drops below the pressure of the consumer refueling.

So, for example, when the pressure in section IV drops below the filling pressure, shut-off valves 11 and / or 12 are opened and air under pressure enters the vessels of section IV, displacing the gas in the vessels into the filling tanks of consumers. Similarly, the remaining sections are connected to the hydraulic compressor via shut-off valves 5-10.

To purge the system, the shut-off valves 5-12, 37, 46, 48, 50, 52, 39 are opened and the air supplied from the compressor 3 displaces the remaining natural gas from the vessels and pipelines, which is displaced from the pipeline 55 “to the candle”.

Claims (1)

A mobile gas filling complex containing a vehicle on which gas vessels are mounted, grouped by means of gas valves in a section, a gas filling and distribution control module for consumers, and a booster unit, characterized in that the booster unit is designed as a hydraulic drive compressor, the output of which connected by pipelines in which there are shut-off valves, with at least one vessel in each section, each section of vessels is equipped with an individual pipe with a shut-off valve for refueling with compressed gas, and an individual pipeline for dispensing gas from the sections to consumers, each of which is connected through an isolation valve to an exhaust pipe in which a filter, gas pressure regulator and shut-off valve are installed, and the exhaust pipe has the ability to connect to at least one a dispensing sleeve and a gas pressure relief pipe in which a shut-off valve is installed.