RU2664053C1 - Gas-pumping unit - Google Patents

Abstract

FIELD: gas industry.SUBSTANCE: gas pumping unit contains technological units that have technological pipelines with detachable connection for external connection of process units to each other and/or the equipment of the gas pumping unit. In this case, the technological blocks contain means for interconnection and positioning of a group of pipelines for external connection of the technological unit. Device is made in the form of a plate rigidly connected to the frame and/or structural element of the technological unit, in which the inputs/outputs of process pipelines are rigidly fixed, provided with a detachable connection. Technological block is selected from the following: compressor block; gas turbine engine block; gas turbine unit; gas turbine engine oil supply unit; oil compressor unit; unit for flushing the gas-air path of the gas turbine unit; fuel gas preparation unit; buffer gas preparation unit; block preparation of the separation (barrier) gas; an exhaust gas heat recovery unit; the anti-icing system unit; block of the gas main control system; the block of apparatuses for air cooling of gas; block of gas separators. Plate can be made of metal, the plate can be made detachable in the plane of the inputs/outputs of the technological pipelines, can have the same size of holes for fixing the inputs/outputs of technological pipelines in it. Holes can be provided with an insert with an internal diameter corresponding to the diameter of the process pipeline. Insert can be integral or detachable and fastened in the hole by threading. Joint of the pipelines may be threaded nipple.EFFECT: invention allows to increase the unification of technological blocks, as well as to shorten the period of installation and reconstruction of the gas pumping unit.10 cl, 3 dwg

Description

The invention relates to mechanical engineering, in particular to gas pumping units with a gas turbine drive, and is intended for compression of gas.

Known gas pumping units (GPU) with a gas turbine drive according to STO Gazprom 2-3,5-138-2007, approved by the Order of Gazprom dated 06.06.2007 No. 151, in which the main and auxiliary equipment are made in the form of pre-assembled and tied technological communications blocks of maximum factory readiness. From OST 26.260.18-2004 “Technological blocks for the gas and oil industry. General technical conditions ”technological units are known - structurally completed and spatially formed assembly units of a technological installation of a given level of factory readiness, designed to carry out basic and technological processes. GPU, including technological units, can have a block-modular design. In such gas compressor units, technological blocks (modules) can be placed in block containers (block boxes) or openly. Or GPU may include an easy-to-assemble hangar-type shelter, in which case the technological units are connected under a common hangar roof. The gas compressor unit includes the following elements of block production: a centrifugal compressor with auxiliary equipment, a gas turbine engine with auxiliary equipment, a control system, an oil supply system with a cooling unit and auxiliary devices for the oil system, a fuel gas preparation system, auxiliary systems and equipment for starting up and operating the gas compressor unit various modes, the aggregate block of gas air-cooling apparatuses and other elements. GPU technological units contain load-bearing structures, apparatus, equipment (pumps, electric motors, etc.), process pipelines with shut-off, safety, and control valves, measuring, control, and automation equipment. Technological blocks are carried out on their own common frame or in a common building, including in container blocks (block boxes), and contain detachable connections for external (inter-block) connection of the block. In this process pipelines for external connection of the block contain flange or threaded plug-in connections. This technical solution is taken as the closest analogue of the claimed invention. The disadvantage of such blocks is the lack of unification of technological blocks. GPU technological units, as a rule, are manufactured according to different technical specifications (requirements) and different manufacturers and are characterized by a wide variety of designs and layouts. Moreover, in technological units containing pipelines, each pipeline or bundle of pipelines has a separate external connection to other technological units and other equipment, detachable pipe connections for external connection of technological units are spatially distributed, their axes may not coincide. When assembling blocks of new gas compressor units, when reconstructing old gas compressor units, it is necessary to use special adapter frames, docking units, and special mounting devices. The existing approach to the external connection of technological units requires a lot of time to design their external strapping, the same problem applies to larger devices, for example, the compressor station as a whole. Until each system is designed, the coordinates of external connections will not be set. In addition, during the construction of a gas compressor unit (hereinafter, construction is also understood to mean installation - assembly of a gas compressor unit into a single device), the mutual arrangement of technological units and their arrangement can change. This significantly increases the installation time of the gas compressor unit, complicates the construction and reconstruction of the gas compressor unit, and increases the material consumption due to the need to use special docking units and mounting devices. As an example of such a gas compressor unit, we can cite a gas pumping unit according to the patent for utility model RU No. 115843 (published on 05/10/2012). As an example of GPA technological units, one can cite the oil supply unit of a gas turbine installation according to the patent for utility model RU No. 167152 (publ. 12/27/2016), the aggregate fuel gas preparation unit according to the patent for utility model RU No. 95934 (publ. 10.04.2010), installation for the preparation and supply of buffer gas according to the patent for utility model RU No. 95762 (publ. 07/10/2010).

On the other hand, there are known devices for supporting several parallel pipes at a certain distance, for example, an arm of a group of pipelines along SU No. 1203311 (publ. 07.01.86), containing the support, clamps and clamp retainer, such a device cannot be used in the GPU process unit, since it is attached to the wall and is unreliable. Or the bracket for fastening the screen of pipelines on the bottom of the vehicle is known according to the patent for utility model RU No. 49762 (publ. 10.12.2005), the holder of the patent EP 3002495 A1 (publ. 06.04.2016), these devices are made of plastic and are not reliable, therefore cannot be used in the design of gas compressor units for safety requirements. All of the above devices, in addition, cannot be used in the GPU technological units due to increased vibration loads. It is also known engine-generator device such as a block container with the function of connecting pipes according to the patent for invention RU No. 2601677 (publ. 10.11.2016), containing two technological blocks made in block containers (block boxes) having a pipe connection between each other . The ability and accuracy of connecting technological units to each other is determined by a strictly specified arrangement of equipment inside the block containers and the strict location of the block containers themselves, which limits the use of such a device.

The authors were faced with the task of creating the design of a gas pumping unit with improved operational characteristics by increasing the unification of technological units, reducing the time for installation and reconstruction of the gas pumping unit.

To achieve the specified technical result, the gas pumping unit (GPU) contains technological units, including technological pipelines with detachable connection for external connection of technological units to each other and / or GPU equipment, while the technological units contain means for inter-unit connection and positioning of a group of pipelines for external connection of the technological unit made in the form of a plate rigidly connected to the frame and / or structural element of the technological unit ka, in which the inputs / outputs of technological pipelines are rigidly fixed, equipped with detachable connections, while the technological unit is selected from the following: compressor unit; gas turbine engine block; gas turbine unit; oil supply unit for a gas turbine engine; compressor oil system block; a gas-air duct washing unit of a gas turbine installation; fuel gas preparation unit; buffer gas preparation unit; block for the preparation of separation (barrier) gas; exhaust heat recovery unit; anti-icing system block; gas control system unit; block of gas air cooling apparatus; gas separator unit.

Preferably, the plate of the interconnect and positioning means is made of metal.

In the particular case of the invention, the plate of the means for inter-unit connection and positioning can be made detachable in the plane of the inputs / outputs of the process pipelines. In another particular case of the execution of the plate means interconnect and positioning can be made with the same size of the holes for fixing the inputs / outputs of the technological pipelines in it, in this case, the holes can be equipped with an insert with an inner diameter corresponding to the diameter of the technological pipeline, the insert can be solid or detachable, the insert can be mounted in the hole of the plate using thread.

In the particular case of the invention, the connection is made threaded nipple-fitting.

In the particular case of carrying out the invention, on the outside of the plate, means for inter-unit connection and positioning next to the inlet / outlet of the pipelines can be applied in a durable way information labels about the purpose of the pipelines.

The proposed design is illustrated by drawings.

The figure 1 shows the means of interconnecting and positioning a group of pipelines for external connection of the technological unit in a perspective view, using the oil supply unit of a gas turbine engine as an example, figure 2 shows a vertical section of the panel of the interconnecting connection of figure 1, figure 3 shows one example the GPA technological unit according to the invention is the oil supply unit of the GPA gas turbine engine in an axonometric projection, where 1 is a means for inter-unit connection and positioning Pipeline group for external connection process unit, 2 - process line, 3 - releasable connection for external connection process line 2 (for external connection process unit) 4 - frame process unit, 5 - appointing information inscription process line 2.

In the specific example given, the oil supply unit of the GPA gas turbine engine, practically all the pipelines of the unit, with the exception of the oil supply pipe to the oil cooler, the oil supply pipe from the oil cooler and the air discharge pipe, are connected to the inter-unit connection and positioning means, which is determined by the technological features of the unit. In the particular embodiment shown, the detachable connection is threaded nipple-threaded and includes a lock nut, an adapter, a union nut, a thrust ring and a nipple, sequentially installed at the end of the pipeline. Such a connection is preferable, because unlike a bulky flange detachable connection, which requires gradual tightening of the bolts in compliance with the “crosswise” rule, the nipple connection provides a faster connection of pipelines, more compact, which also allows you to compactly connect pipelines to the interconnect means and positioning. The connection can be flanged, or another known connection can be used, different types of connections can be used in one process unit. In the shown example, the plate of the holding and positioning means is made of metal, and is bolted to the frame of the technological unit. The plate can be made, for example, of a composite material, or of other known materials that provide the necessary strength and rigidity and meet safety requirements. The plate can be attached in any known manner, for example, by welding, both to the frame of the process unit and to other structural elements of the process unit, for example, to the wall of the unit container, the casing of the device. The plate means interconnect and positioning can be made detachable in the plane of the inputs / outputs of technological pipelines. This facilitates the installation / dismantling of process pipelines and the repair of the process unit. One skilled in the art will recognize that the plate may comprise two or more detachable parts that can be attached to each other in any known manner that provides the necessary rigidity of the connection, for example using eyelets. The holes for fixing the inputs / outputs of technological pipelines in a plate with the same size, and the use of inserts with an inner diameter corresponding to the diameter of the technological pipeline increases the unification of means for interconnecting and positioning a group of pipelines. The insert may be integral or detachable, the integral insert may be screwed into the plate, or the insert, for example, may comprise radial protrusions for holding in the plate. It is preferable to perform an insert made of metal, but it can be made, for example, of a composite material, or of other known materials that provide the necessary strength and rigidity and meet safety requirements. The means for inter-unit connection and positioning of a group of pipelines, if necessary, can also be mounted on a grillage or foundation of a gas compressor unit. The means of interblock connection and positioning, rigidly fixed to the frame and / or structural element of the GPU technological unit, rigid fixing of the inputs / outputs of the technological pipelines in it, reduces the vibration of the pipelines from the unit's operation, which also positively affects the operational characteristics of the unit and the GPU as a whole. Information labels about the purpose of the pipelines can be applied in any known manner, providing them with durability and readability.

GPA execution, with technological units containing inter-unit connection and positioning of a group of pipelines for external connection of the technological unit, made in the form of a plate, preferably metal, rigidly connected to the frame and / or structural element of the technological unit, in which the inputs / outputs of the technological pipelines are rigidly fixed while the technological unit is selected from the series: compressor unit; gas turbine engine block; gas turbine unit; oil supply unit for a gas turbine engine; compressor oil system block; a gas-air duct washing unit of a gas turbine installation; fuel gas preparation unit; buffer gas preparation unit; block for the preparation of separation (barrier) gas; exhaust heat recovery unit; anti-icing system block; gas control system unit; block of gas air cooling apparatus; gas separator unit; the implementation in a particular case of a plate of means for interconnecting and positioning a detachable in the plane of the inputs / outputs of the technological pipelines, with the same size of holes for fixing the inputs / outputs of the technological pipelines in it, with an integral, fixed in the plate by means of a thread, or a detachable insert with an inner diameter, corresponding to the diameter of the process pipeline, the execution in a particular case of a threaded connection with a fitting-nipple, the implementation in a particular case of a durable method p poison with the ins and outs of pipelines of information labels on the purpose of pipelines, simplifies and reduces the time of installation and dismantling of process units in gas compressor units compared with the prototype, including due to the localization of external pipelines on the means of interconnection and positioning and information labels, reducing the number of operations during the installation of GPU due to the use of a fitting-nipple connection. The unification of the GPU technological units, in particular, the compressor unit, the gas turbine engine block, the gas turbine engine block, the gas turbine engine oil supply block, the compressor oil system block, the gas-air duct washing unit of the gas turbine installation, the fuel gas preparation block, the buffer gas preparation block, the separation preparation block ( gas), exhaust heat recovery unit, de-icing system unit, gas line monitoring system unit, unit pparatov air cooling gas, the gas separator unit, whereby units can readily be mounted in the construction SBS can be easily replaced for repair or reconstruction of SBS, it does not require special docking stations and other accessories. One skilled in the art will recognize that some process units may be components of other larger process units, for example, a gas turbine engine block is part of a gas turbine unit. The convenience of servicing the process units and the GPU as a whole is also increasing. Thereby improved operational characteristics of the proposed device. An additional technical result of the invention is the simplification and reduction of time for the design of the external strapping of technological units, gas compressor units and in the compressor station as a whole.

Distinctive features of the proposed device from the above known, closest to it, is that in the gas compressor unit, the process units comprise means for interconnecting and positioning a group of pipelines for external connection of the process unit, made in the form of a plate rigidly connected to the frame and / or structural element of the technological unit, in which detachable connections of technological pipelines are rigidly fixed, while the technological unit is selected from the series: compress and; gas turbine engine block; gas turbine unit; oil supply unit for a gas turbine engine; compressor oil system block; a gas-air duct washing unit of a gas turbine installation; fuel gas preparation unit; buffer gas preparation unit; block for the preparation of separation (barrier) gas; exhaust heat recovery unit; anti-icing system block; gas control system unit; block of gas air cooling apparatus; a gas separator unit, in particular cases of the invention, the plate of the interconnect and positioning means can be made metal, detachable in the plane of the inputs / outputs of the technological pipelines, with the same size of the holes for fixing the inputs / outputs of the technological pipelines in it, in this case, the holes can be provided insert with an inner diameter corresponding to the diameter of the process pipe, the insert can be solid or detachable, the insert can be attached to the formation not by a screw threaded connection piping can be performed choke-nipple, in another particular case on the outer side of the plate means interconnect compound and ranking next to industrial pipelines inputs / outputs may be applied to a durable form informational signs appointing pipelines.

The combination of all these essential features made it possible to create a GPU design that provides improved operational characteristics by increasing the unification of its technological units, reducing the time of installation and dismantling, reconstruction compared to the closest analogue.

The claimed technical solution of the gas compressor unit can be implemented in industrial production using standard equipment and technologies. In its manufacture, standard metal products, fasteners, materials and equipment are used. The device complies with safety standards.

The authors developed a gas pumping unit, which was successfully implemented in gas pumping units GPA-1001 Irtysh and GPA-0601 Irtysh of the applicant’s enterprise.

Claims (10)

1. Gas pumping unit (GPU) containing process units having process pipelines with a detachable connection for external connection of process units to each other and / or GPU equipment, characterized in that the process units comprise means for inter-unit connection and positioning of a group of pipelines for external connection of the process unit made in the form of a plate rigidly connected to the frame and / or structural element of the technological unit, in which the inputs are rigidly fixed / exits of technological pipelines equipped with a detachable connection, while the technological unit is selected from the series: compressor unit; gas turbine engine block; gas turbine unit; oil supply unit for a gas turbine engine; compressor oil system block; a gas-air duct washing unit of a gas turbine installation; fuel gas preparation unit; buffer gas preparation unit; block for the preparation of separation (barrier) gas; exhaust heat recovery unit; anti-icing system block; gas control system unit; block of gas air cooling apparatus; gas separator unit. 2. The gas pumping unit according to claim 1, characterized in that the plate of the means for inter-unit connection and positioning of the group of pipelines is made of metal. 3. The gas pumping unit according to claim 1, characterized in that the plate of the means for inter-unit connection and positioning of the group of pipelines is made detachable in the plane of the inputs / outputs of the technological pipelines. 4. The gas pumping unit according to claim 1 or 3, characterized in that the plate of the means for inter-unit connection and positioning of the group of pipelines is made with the same size of the holes for fixing the inputs / outputs of the technological pipelines therein. 5. The gas pumping unit according to claim 4, characterized in that the holes are provided with an insert with an inner diameter corresponding to the diameter of the process pipeline. 6. The gas pumping unit according to claim 5, characterized in that the insert is integral. 7. The gas pumping unit according to claim 6, characterized in that the insert is mounted in the hole with a thread. 8. The gas pumping unit according to claim 5, characterized in that the insert is detachable. 9. The gas pumping unit according to claim 1, characterized in that the detachable connection of the process pipelines is threaded nipple-threaded. 10. The gas pumping unit according to claim 1, characterized in that on the outside of the plate next to the inlet / outlet of the pipelines durable information signs are applied on the purpose of the pipelines.

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