GDS with capacity from 100 to 100 000 nm3/h.
GDS with a productivity from 100 to 100,000 Nm3/h
Block-modular gas distribution stations (GDS) provide preparation, reduction and maintenance of gas pressure (natural, associated oil, artificial) at the outlet of the GDS at a given level, as well as for measuring gas flow and odorizing it before supplying it to the consumer when supplying consumers (settlements) , industrial facilities and other structures using gas) in areas with a temperate and cold climate.
GDS are designed for outdoor operation in conditions normalized for UHL version of placement category I in accordance with GOST 15150-69.
GDS are finalized individually, according to the requirements of the Customer, in accordance with the questionnaire.
GDS with productivity up to 400 Nm3/h
Gas distribution stations (GDS) with a capacity of 100…400 nm3/h are designed to reduce gas pressure from high to predetermined and maintain it before being supplied to the consumer. The stations are delivered in full factory readiness, adjusted to the parameters according to the customer's requirements. In this version, GDS and HF are connected, which are made in a single unit, the process of gas reduction from high pressure to consumer pressure is carried out in a single technological process. Stations of this type are designed for gas consumers with low daily consumption. The block module is made of sandwich panels.
Specifications
| Inlet gas pressure, MPa (kgf/cm2) | 7.5 (75) |
| Productivity, nm3/h | 400 |
| Overall dimensions (LxWxH), mm | 3000...4500x1400x2400 |
| Weight, tons | 5 no more |
Advantages:
- compactness;
- high degree of factory readiness;
- does not require a large amount of construction and installation work during installation;
- high degree of environmental safety (works without gas discharge into the atmosphere);
- full automation of the technological process.
GDS with a productivity from 1000 to 100000 Nm3/h
Main technical characteristics
| Inlet gas pressure, MPa (kgf/cm2) | up to 7.50 (75), if necessary up to 12.0 (120) |
| Capacity, nm3/h | 1,000...100,000 (and any other on request) |
|
Working environment:
|
natural gas according to OST 51.40 natural gas according to GOST 5542 |
| Number of gas outlets one or more, according to the customer's request | |
| Gas pressure at the inlet, MPa (kgf/cm2) from 3 to 12 or other at the request of the customer |
Design and main characteristics.
The composition of the GDS performance:
- up to 25,000 Nm3/h - two-block design, with equipment placed in 2 separate block modules. The first block houses the technological compartment and the odorization compartment, the second - the control compartment and the coolant preparation compartment;
- over 25,000 to 100,000 Nm3/h — one monoblock consisting of several transportable modules, which house the process line and odorization compartment. The second monoblock - with a control compartment and a coolant preparation compartment;
- over 100 000 Nm3/h - composition and technical solutions for a special project.
The compartments are equipped with separate entrances and are protected from access by unauthorized persons.
All technological equipment is installed in the GDS monoblock, including automation, lighting, heating, and supply and exhaust ventilation systems. The monoblock is divided into two rooms (technological and auxiliary) by a sealed partition. The technological room houses the main technological equipment, including a condensate collection tank and a sealed tank with an odorant with engineering systems.
The following nodes are located in the technological compartment:
- switching;
- reduction (including for own needs);
- measurement of gas consumption (including for own needs);
- gas purification from drop liquid and mechanical impurities;
- condensate collection;
- gas-water gas heater;
- pulse gas preparation.
The odorization compartment contains:
- odorant container with strapping;
- odorizer;
- a gas reduction unit for squeezing the odorant and pumping out the odorant vapors.
Categories of technological and odorization compartments for explosion and fire safety - A.
In the coolant preparation compartment are placed (compartment category for explosion and fire safety - A, working area - B1g):
- heating units with piping;
- network pumps;
- expansion tank.
In the control compartment (operator room, compartment category for explosion and fire safety - D) are located:
- communication node;
- node of control and automatic control of technological processes and telemechanics;
- alarm unit;
- electrical panel;
- workplace of the GDS operator.
The compartments are heated by radiators with coolant supply from two heating units located in the coolant preparation compartment. Ventilation of the compartments of the required multiplicity is provided by supply and exhaust grilles made in the outer walls and doors of the block-boxes. An emergency exhaust fan is installed in the technological compartment.
Actual GDS block-modules have a single bearing metal frame and a reinforced metal frame each . The degree of fire resistance of block modules is not lower than IIIa.
Partitions between compartments, as well as seals of pipe and cable wiring are sealed.
Equipment for control and management of GDS equipment.
To control the GDS equipment and monitor the technical condition, an automatic control system based on an industrial computer is used, which provides:
- gas temperature measurement;
- gas pressure at the inlet and outlet of the GDS;
- gas consumption;
- control of discrete parameters;
- issuance to the actuators of control signals generated in the supervisory control system - open - close the security and inlet valves, valves of the main and reserve reduction lines and a relief valve;
- generation of control signals for switching on: external lighting of the control room of the gas distribution station, supply of odorant in proportion to the volumetric gas flow reduced to normal conditions, sound signal of an accident at the gas distribution station and fire warning.
- collection, processing, storage and registration of all information obtained in the course of process control;
- output of any measured or calculated parameters to the operator's console and to the central control room.
- registration of accounting parameters (storage in memory).
Our production
The production branch of JSC "Novamash" is located in the metallurgical center of the Sverdlovsk region, the city of Nizhny Tagil.
The company's production facilities are equipped with modern equipment of domestic and European manufacturers, which makes it possible to manufacture structures for various purposes according to the highest requirements.
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