CN222122548U - Pipeline assembly and gas turbine device - Google Patents

Abstract

The application relates to the technical field of air supply, in particular to a pipeline assembly and a gas turbine device, which are used for improving the safe reliability of the operation of a gas turbine, the pipeline assembly comprises a conveying pipeline and a heating part arranged on the outer surface of the conveying pipeline, a protective layer is arranged between the conveying pipeline and the heating part, and the pipeline assembly can effectively avoid the phenomenon that gas in the pipeline is condensed when entering the gas engine.

Description

Pipeline assembly and gas turbine device

Technical Field

The application relates to the technical field of air supply, in particular to a pipeline assembly and a gas turbine device.

Background

Gas turbines, also known as gas turbines, heat air by a compressor and then pass the air into a combustion chamber. The combustion chat burns in the combustion chamber to generate high-temperature fuel gas, and then the fuel gas enters the power turbine to drive the turbine blades to rotate at a high speed, so that the rotor is driven to do work outwards. Gas turbines designed by various large gas turbine manufacturers in the world require that gas turbine gas fuels not be allowed to contain liquids after they reach the gas turbine. If gas is produced with liquid during its entry into the combustion chamber of the gas turbine, it will cause damage to the combustion chamber and the high temperature gas passage components. Measures must be taken to raise the water dew point and hydrocarbon dew point of the fuel entering the combustion chamber by Δt (Δt > 0) as compared to the fuel.

There are various pipelines on the gas turbine operation site, including steel pipes, metal braided hoses, nonmetallic pipes such as PU pipes, rubber pipes, plastic pipelines and the like. The movable gas turbine unit is operated at different well sites, a plurality of pipelines adopt hoses, and according to different media, pressures and temperatures, some pipelines adopt metal braided hoses, and other pipelines adopt nonmetal pipelines. Some sites are tens of meters or hundreds of meters, and due to the operation in low-temperature areas, a large amount of heat can be emitted through the on-site pipeline after the medium is heated, so that the temperature is reduced, the superheat degree higher than the dew point is reduced, even water drops or liquid hydrocarbon substances are generated in the pipeline, and the operation safety and reliability of the gas turbine are affected.

Disclosure of utility model

The application aims to provide a pipeline assembly and a gas turbine device, wherein the pipeline assembly can effectively avoid the phenomenon of condensation of gas in a pipeline when the gas enters a gas turbine, and improve the safe reliability of the operation of the gas turbine.

To this end, in a first aspect, an embodiment of the present application provides a pipeline assembly, which is applied to a gas turbine device, where the pipeline assembly includes a conveying pipeline and a heating element disposed on an outer surface of the conveying pipeline, and a protection layer is disposed between the conveying pipeline and the heating element.

In one possible implementation, the delivery line is used for delivering fuel gas, the delivery line is a flexible line, and the heating element is a heat tracing band capable of bending and deforming along with the delivery line.

In one possible embodiment, the protective layer is arranged on the outer circumferential side of the conveying line.

In one possible implementation, the protective layer is arranged on the outer circumferential side of the heating element.

In one possible embodiment, the heat trace belt is arranged outside the conveying line in the direction of extension of the conveying line.

In one possible embodiment, the heat tracing band is arranged in a spiral form around the outer circumference of the conveying line.

In one possible embodiment, the heat trace belt has a plurality of parallel portions arranged in the extending direction of the conveying line and a winding portion for connecting adjacent two parallel portions.

In one possible implementation, the protective layer is made of a heat insulating material or a heat conducting material.

In one possible implementation, the pipeline assembly further comprises a thermal insulation layer arranged on the peripheral side of the conveying pipeline and the heating element.

In a second aspect, an embodiment of the present application provides a gas turbine apparatus comprising a first device and a second device, and a pipeline assembly as described above for connecting the first device and the second device.

According to the pipeline assembly and the gas turbine device provided by the embodiment of the application, the heating element is arranged on the outer side of the conveying pipeline, so that conveying medium in the conveying pipeline is heated, the conveying pipeline and the heating element are protected by the protective layer between the conveying pipeline and the heating element, the heating element is prevented from being damaged by the conveying pipeline, the conveying pipeline is prevented from being damaged due to overhigh local heating, the phenomenon of condensation of gas in the conveying pipeline when the gas enters the gas turbine can be effectively avoided, and the safety and reliability of the operation of the gas turbine are improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

FIG. 1 is a schematic view showing an axial cross-sectional structure of a pipeline assembly according to an embodiment of the present application;

FIG. 2 is a schematic view showing an axial cross-section of another pipeline assembly according to an embodiment of the present application;

FIG. 3 is a schematic view showing an axial cross-section of still another pipeline assembly according to an embodiment of the present application;

FIG. 4 is a schematic view showing a radial cross-sectional structure of a pipeline assembly according to an embodiment of the present application;

FIG. 5 shows a schematic view of the radial cross-section of the pipeline assembly of FIG. 4 with two heat tracing bands;

FIG. 6 shows a schematic view of a radial cross-section of the pipeline assembly of FIG. 4 with a plurality of heat tracing bands;

FIG. 7 shows a schematic view of the radial cross-section of the pipeline assembly of FIG. 3;

FIG. 8 shows a schematic radial cross-sectional view of the pipeline assembly of FIG. 2;

Fig. 9 is a schematic view showing a radial sectional structure when the protective layer provided in the embodiment of the application is provided on the outer peripheral side of the heating member.

Reference numerals illustrate:

1. the heat-insulating material comprises a conveying pipeline, a heating part, a heat tracing belt, a protective layer, a heat insulating layer and a heat insulating layer.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The following disclosure provides many different embodiments, or examples, for implementing different structures of embodiments of the application. In order to simplify the disclosure of embodiments of the present application, components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit embodiments of the present application. Furthermore, embodiments of the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "upper," "above," "front," "rear," and the like, may be used herein to describe one element's or feature's relative positional relationship or movement to another element's or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures experiences a positional reversal or a change in attitude or a change in state of motion, then the indications of these directives will also correspondingly change, e.g., an element described as "under" or "under" another element or feature will then be oriented "over" or "over" the other element or feature. Thus, the example term "below" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

In order to solve the problems in the prior art, the application provides a pipeline assembly and a gas turbine device, wherein the pipeline assembly can effectively avoid the phenomenon that gas in a conveying pipeline is condensed when entering a gas turbine, and the safety and the reliability of the operation of the gas turbine are improved.

As shown in fig. 1-9, an embodiment of the present application provides a pipeline assembly applied to a gas turbine device, the pipeline assembly includes a conveying pipeline 1 and a heating element 2 disposed on an outer surface of the conveying pipeline 1, and a protective layer 3 is disposed between the conveying pipeline 1 and the heating element 2.

According to the application, the heating element 2 is arranged on the outer side of the conveying pipeline 1, so that the temperature of the conveying medium in the conveying pipeline 1 is raised, the conveying pipeline 1 and the heating element 2 are protected by the protective layer 3 between the conveying pipeline 1 and the heating element 2, the damage to the heating element 2 caused by the conveying pipeline 1 and the damage to the conveying pipeline 1 caused by overhigh local heating are avoided, the phenomenon that the gas in the conveying pipeline 1 is condensed when entering the gas turbine can be effectively avoided, and the safety and reliability of the operation of the gas turbine are improved.

In the related art, various pipelines are arranged on the operation site of the gas turbine, and steel pipes, metal woven hoses, nonmetallic pipes such as PU pipes, rubber pipes, plastic pipes and the like are arranged. In order to avoid the problem that the power consumption is large in cold areas, the liquid generated in the field pipeline is mainly heated by a heater or a heat exchanger at the gas supply end or the gas engine end in the prior art. And some pipelines have tens of meters or hundreds of meters, and after the medium in the conveying pipeline 1 is heated in a low-temperature area, a large amount of heat can be emitted when the medium is conveyed through the conveying pipeline 1, so that the temperature is reduced, the superheat degree higher than the dew point is reduced, and even water drops or liquid hydrocarbon substances are generated in the conveying pipeline 1. In the field operation gap, after the gas turbine is stopped, the gas does not flow, the temperature of the medium in the conveying pipeline 1 drops faster, and liquid or ice blockage is more likely to be generated. Resulting in interruption of the air supply and a significant loss.

In the embodiment of the application, the heating element 2 is arranged on the outer side of the conveying pipeline 1, so that the length of the heating element 2 can be prolonged along with the length of the conveying pipeline 1, and the whole conveying pipeline 1 can be heated and insulated, so that liquid in the conveying pipeline 1 is avoided. Compared with the existing mode of heating the fuel gas at the fuel gas supply end or the fuel gas engine end, the application has the advantages that the heating element 2 is arranged at the outer side of the conveying pipeline 1, so that the uniformity of the temperature of the fuel gas in the conveying pipeline 1 can be ensured, and the energy consumption is reduced. Even if the heating element 2 keeps the temperature of the conveying pipeline 1 in the gap of field operation, the problem of direct temperature drop in the conveying pipeline 1 can not occur, and the normal operation of the gas turbine device is ensured.

In some embodiments, the conveying pipeline 1 is used for conveying fuel gas, the conveying pipeline 1 adopts a flexible pipeline, and the heating element 2 is a heat tracing belt 21 capable of bending and deforming along with the conveying pipeline 1.

In the related art, some gas turbines are movable, and are required to operate at different well sites, wherein the pipelines adopt hoses, metal braided hoses are adopted according to different media, pressures and temperatures, and nonmetal pipelines are adopted.

In the application, the flexible pipeline is adopted by the conveying pipeline 1, and the heating element 2 adopts the heat tracing belt 21, so that the device can be flexibly suitable for moving in different well sites.

Specifically, the metal braided hose is similar to the metal braided hose, because the heat tracing band 21 needs to be attached to the surface of the conveying pipeline 1, and the roughness of the outer surface of the metal braided hose is very large, especially, the metal braided hose is similar to a metal burr, bulge or sharp angle lamp structure, after the heat tracing band 21 is wound, relative displacement occurs between the heat tracing band 21 and the conveying pipeline 1 in the vibration or moving process of the conveying pipeline 1, the burr, sharp angle, bulge or hook structure on the surface of the conveying pipeline 1 easily damages an insulating layer of the heat tracing band 21, the heat tracing fault is caused slightly, the short circuit is caused seriously, the parts of the heat tracing system are burnt, and fire and explosion can be caused in flammable and explosive situations. In the embodiment of the application, the heat tracing band 21 can be protected by arranging the protective layer 3 between the conveying pipeline 1 and the heat tracing band 21, so that the insulating layer of the heat tracing band 21 is prevented from being damaged in the vibration and movement processes of the conveying pipeline 1, and the safety is improved.

In the case where the transfer line 1 is a heat-insulating pipe, a PU pipe, a nonmetallic pipe, a rubber-like pipe line, or the like, which is easily damaged at high temperature, is used. When the control system of the heat tracing belt 21 malfunctions, irreversible damage to the conveying pipe 1 is easily caused by high temperature. In the present application, the protective layer 3 is provided between the conveying line 1 and the heat tracing band 21, so that the situation that the local temperature of the conveying line 1 is too high due to the control system failure of the heat tracing band 21 is avoided, and the safety is improved.

As shown in fig. 1-8, in some embodiments, the protective layer 3 is provided on the peripheral side of the transfer line 1.

In the present application, the protective layer 3 may be wound around the outer surface of the conveying pipe 1, adhered to the outer surface of the conveying pipe 1, fixed to the outer surface of the conveying pipe 1 by binding, fixed to the outer surface of the conveying pipe 1 by pressing, fixed to the outer surface of the conveying pipe 1 by welding, or the like, without limitation. Specifically, the appropriate processing form is selected according to the material of the conveying line 1. The conveying pipeline 1 is wrapped through the protective layer 3, and the heating piece 2 is arranged on the outer surface of the protective layer 3, so that the temperature rise and heat preservation of the conveying pipeline 1 can be realized, and the conveying pipeline 1 and the heating piece 2 can be protected.

As shown in fig. 9, in another embodiment, the protective layer 3 is provided on the outer peripheral side of the heating element 2.

In the application, the protective layer 3 can be arranged on the outer periphery side of the heating element 2, then the heating element 2 with the protective layer 3 is arranged on the outer side of the conveying pipeline 1, so that the temperature rise and the heat preservation of the conveying pipeline 1 can be realized, and the conveying pipeline 1 and the heating element 2 can be protected.

Specifically, the protective layer 3 may be selectively wound around the outer surface of the heat tracing band 21, adhered to the outer surface of the heat tracing band 21, fixed to the outer surface of the heat tracing band 21 by binding, fixed to the outer surface of the heat tracing band 21 by pressing, or the like, without limitation.

In some embodiments, the heat tracing band 21 is disposed outside the conveying line 1 in the extending direction of the conveying line 1.

As shown in fig. 1, 4 and 5, in the present application, the heat tracing band 21 may be disposed parallel to the conveying pipeline 1, and the heat tracing band 21 is disposed on the outer surface of the conveying pipeline 1 along the extending direction of the conveying pipeline 1, so as to heat and insulate the medium in the conveying pipeline 1.

As shown in fig. 2 and 8, in some embodiments, the heat tracing band 21 is provided in a spiral form around the outer peripheral side of the conveying pipe 1.

In the application, the heat tracing band 21 can also be wound on the outer periphery side of the conveying pipeline 1 in a spiral winding mode to realize heating and heat preservation of the conveying pipeline 1 by the heat tracing band 21, and simultaneously, the fixation of the heat tracing band 21 and the conveying pipeline 1 is completed.

As shown in fig. 3, 6/, 7, in some embodiments, the heat tracing band 21 has a plurality of parallel portions provided along the extending direction of the conveying line 1 and a winding portion for connecting adjacent two of the parallel portions.

In the present application, the heat tracing band 21 may be disposed on the outer peripheral side of the conveying line 1 in a parallel and winding manner, like an S-shaped manner, the parallel portion of the heat tracing band 21 being parallel to the conveying line 1, the winding portion being wound along the outer periphery of the conveying line 1, thereby completing the disposition of the heat tracing band 21 on the outer peripheral side of the conveying line 1.

Specifically, the number of heat tracing bands 21 may be one or a plurality, and an appropriate number of heat tracing bands 21 may be selected according to the length of the conveying line 1 and the desired heat insulation effect. The heat tracing band 21 may be provided in a form of being parallel to the conveying pipe 1, wound around the outer peripheral side of the conveying pipe 1, and partially wound around the outer surface of the conveying pipe 1 in parallel.

In some embodiments, the protective layer 3 is made of a heat insulating material or a heat conducting material.

In one embodiment, the protective layer 3 may be one or more of aluminum silicate, rock wool, aerosol or other materials with heat transfer coefficients close to those of the materials, so that the conveying pipeline 1 can be effectively protected from being damaged due to local high temperature. In another embodiment, when the temperature of the heat tracing band 21 transmitted to the outer wall of the conveying line 1 is lower than the allowable temperature of the conveying line 1, the protective layer 3 may also be made of a heat conductive material such as a stainless steel band, a stainless steel sheet, other metal plates, or the like.

In some embodiments, the line assembly further comprises an insulation layer 4 arranged on the outer circumferential side of the transfer line 1 and the heating element 2.

In the application, the heat insulation layer 4 is arranged on the outer periphery of the conveying pipeline 1 and the heating element 2, so that heat dissipation can be further improved, the heat preservation effect on the conveying pipeline 1 is further improved, and the energy consumption is further reduced. And the heat insulation layer 4 can also form effective protection on the outermost layer, so that the conveying pipeline 1 and the heating element 2 are prevented from being damaged by the outside.

This pipeline subassembly is through setting up heating member 2 in the outside of transfer line 1 to heat up the transport medium of transfer line 1 inside, protect transfer line 1 and heating member 2 through the protective layer 3 between transfer line 1 and the heating member 2, avoid transfer line 1 to cause damage to heating member 2 and transfer line 1 to appear damaging because of the local too high heating, can effectively avoid the gas in transfer line 1 to appear the phenomenon of condensation when getting into the gas turbine, improve the fail safe nature of gas turbine operation.

The embodiment of the application provides a gas turbine device, which comprises first equipment and second equipment, and the pipeline assembly, wherein the pipeline assembly is used for connecting the first equipment and the second equipment.

In the application, the first equipment is gas supply equipment, such as gas treatment equipment, a front-end module and the like, the second equipment is a gas turbine, and the gas supply equipment supplies required gas for the gas turbine through a pipeline assembly.

The embodiment of the application also provides a processing method suitable for the operation of the gas turbine in the cold region, which comprises the following steps:

s1, paving a conveying pipeline between first equipment and second equipment;

S2, checking the pipeline condition of the conveying pipeline and judging whether the conveying pipeline is at risk of damaging the heat tracing belt or not, or the conveying pipeline is easily damaged by high temperature;

S3, arranging a protective layer between the conveying pipeline and the heat tracing belt;

s31, arranging a protective layer on the outer periphery side of the conveying pipeline and/or the heat tracing belt;

S4, laying the heat tracing belt and the conveying pipeline;

s5, laying a heat insulation layer.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A pipeline assembly, applied to a gas turbine device, characterized in that the pipeline assembly comprises a delivery pipeline (1) and a heating element (2) arranged on the outer surface of the delivery pipeline (1), and a protective layer (3) is arranged between the delivery pipeline (1) and the heating element (2). 2. The pipeline assembly according to claim 1 is characterized in that the delivery pipeline (1) is used to transport gas, the delivery pipeline (1) is a flexible pipeline, and the heating element (2) is a heating tape (21) that can bend and deform along with the delivery pipeline (1). 3. The pipeline assembly according to claim 1, characterized in that the protective layer (3) is arranged on the outer peripheral side of the conveying pipeline (1). 4. The pipeline assembly according to claim 1, characterized in that the protective layer (3) is arranged on the outer peripheral side of the heating element (2). 5. The pipeline assembly according to claim 2, characterized in that the heating belt (21) is arranged on the outside of the conveying pipeline (1) along the extension direction of the conveying pipeline (1). 6. The pipeline assembly according to claim 2, characterized in that the heating tape (21) is wound in a spiral form on the outer peripheral side of the conveying pipeline (1). 7. The pipeline assembly according to claim 2, characterized in that the heating tape (21) has a plurality of parallel parts arranged along the extension direction of the conveying pipeline (1) and a winding part for connecting two adjacent parallel parts. 8. The pipeline assembly according to any one of claims 2 to 7, characterized in that the protective layer (3) is made of heat insulating material or heat conductive material. 9. The pipeline assembly according to claim 1, characterized in that the pipeline assembly further comprises a heat insulation layer (4) arranged on the outer peripheral side of the conveying pipeline (1) and the heating element (2). 10. A gas turbine device, characterized by comprising: a first device and a second device; and The pipeline assembly according to any one of claims 1 to 9, wherein the pipeline assembly is used to connect the first device and the second device.