Gas transmission device

Abstract

The invention discloses a gas transmission device, relates to the technical field of mechanical equipment, and aims to solve the problem of low efficiency of a gas transmission station construction mode. The gas transmission device comprises a gas transmission pipeline; the gas conveying skid-mounted units are connected through flanges, the gas conveying skid-mounted units are used for controlling conveyed gas, each gas conveying skid-mounted unit comprises a skid-mounted base, skid-mounted inner equipment, a flange plate, a pipeline element and an instrument element, the skid-mounted inner equipment is arranged on the skid-mounted base, the flange plate is connected with the skid-mounted equipment and a pipeline, and the pipeline element is arranged on the skid-mounted base. The skid-mounted base is used for fixing skid-mounted inner equipment.

Description

Technical Field

[0001] This application relates to the technical field of mechanical equipment, and particularly to a gas transmission device. Background Art

[0002] A gas transmission station is an energy distribution device integrating multi-functional process units, which can receive, regulate pressure, measure, and distribute natural gas, so as to transport natural gas from high-pressure long-distance pipelines to downstream users. At present, the construction method of traditional gas transmission stations has low efficiency.

[0003] Therefore, how to improve the construction efficiency of gas transmission stations has become an urgent problem to be solved currently. Summary of the Invention

[0004] The purpose of this application is to provide a gas transmission device, aiming to solve the problem of low efficiency of the construction method of gas transmission stations.

[0005] To achieve the above object, this application adopts the following technical solutions:

[0006] In a first aspect, this application provides a gas transmission device, including: a gas transmission pipeline;

[0007] A plurality of gas transmission skid-mounted units, which are flange-connected to the gas transmission pipeline. The gas transmission skid-mounted units are used to control the transported gas. The gas transmission skid-mounted units include: a skid-mounted base, skid-mounted internal equipment, and a flange plate. The skid-mounted base is used to fix the skid-mounted internal equipment..

[0008] According to the above technical means, for the gas transmission device provided in the embodiment of this application, in this embodiment, the plurality of gas transmission skid-mounted units are flange-connected to the gas transmission pipeline. Since the gas transmission skid-mounted units include: a skid-mounted base, skid-mounted internal equipment, and a flange plate, the skid-mounted internal equipment is arranged on the skid-mounted base, and the skid-mounted base is used to fix the skid-mounted internal equipment. The plurality of gas transmission skid-mounted units can be connected to the gas transmission pipeline through the flange plate, and further the connection between the plurality of gas transmission skid-mounted units can be realized, so that gas can be transmitted through the plurality of gas transmission skid-mounted units. Further, the structure of the gas transmission device can be made more compact, which is convenient for the installation and disassembly of the gas transmission device.

[0009] In some embodiments, the inlet valve group skid unit includes: a first skid-mounted base, an inlet valve device, and a flange. The first skid-mounted base is used to fix the inlet valve device. The filter skid unit includes: a second skid-mounted base, a filter device, and a flange. The second skid-mounted base is used to fix the filter device. The electric heating skid unit includes: a third skid-mounted base, an electric heating device, and a flange. The third skid-mounted base is used to fix the electric heating device. The metering skid unit includes: a fourth skid-mounted base, a metering valve device, and a flange. The fourth skid-mounted base is used to fix the metering device. The pressure regulating skid unit includes: a fifth skid-mounted base, a pressure regulating device, and a flange. The fifth skid-mounted base is used to fix the pressure regulating device. The outlet valve group skid unit includes: a sixth skid-mounted base, an outlet valve device, and a flange. The sixth skid-mounted base is used to fix the outlet valve device. The inlet valve device is used to control the inflow of gas. The filter device is used to filter gas. The electric heating device is used to adjust the temperature of gas. The metering device is used to collect the flow data of gas. The pressure regulating device is used to adjust the pressure of gas. The outlet valve device is used to control the outflow of gas.

[0010] According to the above technical means, the inflow of gas can be controlled by the inlet valve group skid unit to ensure that it can be quickly closed in an emergency to block the gas source, thus protecting the safety of the equipment in the station. By filtering gas through the filter skid unit, it can be avoided that too many impurities in the natural gas affect the quality of natural gas. By adjusting the temperature of gas through the electric heating skid unit, low-temperature natural gas can be heated to prevent the formation of hydrates or pipeline blockage in the pipeline. By collecting the flow data of gas through the metering skid unit, the flow rate of natural gas entering the distribution station can be accurately measured, providing a basis for subsequent energy management. By adjusting the pressure of gas through the pressure regulating skid unit, high-pressure natural gas can be adjusted to a pressure range suitable for downstream users. By controlling the outflow of gas through the outlet valve group skid unit, the gas source can be cut off in an emergency, thus protecting the safety of downstream users.

[0011] In some embodiments, the inlet valve group skid unit is flange-connected to the filter skid unit through a gas transmission pipeline and a flange. The filter skid unit is flange-connected to the electric heating skid unit through a gas transmission pipeline and a flange. The electric heating skid unit is flange-connected to the metering skid unit through a gas transmission pipeline and a flange. The metering skid unit is flange-connected to the pressure regulating skid unit through a gas transmission pipeline and a flange. The pressure regulating skid unit is flange-connected to the outlet valve group skid unit through a gas transmission pipeline and a flange.

[0012] According to the above technical means, the inlet valve group skid unit is flange-connected to the filter skid unit, the filter skid unit is flange-connected to the electric heating skid unit, the electric heating skid unit is flange-connected to the metering skid unit, the metering skid unit is flange-connected to the pressure regulating skid unit, and the pressure regulating skid unit is flange-connected to the outlet valve group skid unit. In this way, the transportation of the inlet valve group skid unit, the filter skid unit, the electric heating skid unit, the metering skid unit, the pressure regulating skid unit, and the outlet valve group skid unit can be facilitated. When equipment needs to be repaired or replaced, the flange connection can be quickly disassembled by loosening the bolts. In this way, disassembly and transportation are convenient, the combination is more flexible, and time and labor costs are greatly saved.

[0013] In some embodiments, the inlet valve equipment includes: an inlet valve, a first pressure gauge, a first pressure controller, and a first pipeline. The first pipeline is communicated with the gas transmission pipeline. The first pressure gauge is used to monitor the pressure of the gas in the first pipeline, and the first pressure controller is used to adjust the pressure of the gas in the first pipeline.

[0014] According to the above technical means, the inlet valve can control the inflow of natural gas and ensure the pressure stability of the gas transmission device.

[0015] In some embodiments, the filter equipment includes: a filter, a first cut-off valve, a differential pressure gauge, a second pressure gauge, a second pressure controller, and a second pipeline. The second pipeline is communicated with the gas transmission pipeline. The filter is used to filter impurities in the gas, the first cut-off valve is used to cut off the flow of the gas in the second pipeline, the differential pressure gauge is used to monitor the pressure difference before and after gas filtration, the second pressure gauge is used to monitor the pressure of the gas in the second pipeline, and the second pressure controller is used to adjust the pressure of the gas in the second pipeline.

[0016] According to the above technical means, by skidding multiple devices responsible for filtering natural gas in the gas transmission device, the workload of installing multiple devices for filtering natural gas on-site can be reduced, and the floor area can be saved.

[0017] In some embodiments, the electric heating equipment includes: an electric heater, a second cut-off valve, a temperature gauge, a third pressure gauge, a third pressure controller, and a third pipeline. The third pipeline is communicated with the gas transmission pipeline. The second cut-off valve is used to cut off the flow of the gas in the third pipeline, the temperature gauge is used to monitor the temperature of the gas, the third pressure gauge is used to monitor the pressure of the gas in the third pipeline, and the third pressure controller is used to adjust the pressure of the gas in the third pipeline.

[0018] According to the above technical means, by skidding multiple devices responsible for regulating the temperature of natural gas in the gas transmission device, the workload of installing multiple devices for regulating the temperature of natural gas on-site can be reduced, and the floor area can be saved.

[0019] In some embodiments, the metering device includes: a flow meter, a third shut-off valve, a flow instrument, a fourth pressure gauge, a fourth pressure controller, and a fourth pipeline. The fourth pipeline is connected to the gas transmission pipeline. The third shut-off valve is used to cut off the flow of gas in the fourth pipeline. The flow instrument is used to measure the flow rate of gas. The fourth pressure gauge is used to monitor the pressure of gas in the fourth pipeline. The fourth pressure controller is used to adjust the pressure of gas in the fourth pipeline.

[0020] According to the above technical means, by skidding multiple devices responsible for collecting natural gas data in the gas transmission device, the workload of installing multiple devices for collecting natural gas data on site can be reduced, and the floor area can be saved.

[0021] In some embodiments, the pressure regulating device includes: an emergency cut-off valve, a pressure regulating valve, a fourth shut-off valve, a pressure instrument, and a fifth pipeline. The fifth pipeline is connected to the gas transmission pipeline. The pressure instrument includes a fifth pressure gauge and a fifth pressure controller. The fourth shut-off valve is used to cut off the flow of gas in the fifth pipeline. The pressure instrument is used to monitor the pressure of gas. The fifth pressure gauge is used to monitor the pressure of gas in the fifth pipeline. The fifth pressure controller is used to adjust the pressure of gas in the fifth pipeline.

[0022] According to the above technical means, by skidding multiple devices responsible for regulating the pressure of natural gas in the gas transmission device, the workload of installing multiple devices for regulating the pressure of natural gas on site can be reduced, and the floor area can be saved.

[0023] In some embodiments, the metering skid unit is located on the first floor, the pressure regulating skid unit and the outbound valve group skid unit are located on the second floor, and the second floor is above the first floor. According to the above technical means, the three-dimensional space can be fully utilized to make the equipment layout more compact.

[0024] In some embodiments, the equipment inside the skid includes: main equipment inside the skid and standby equipment inside the skid. The standby equipment inside the skid is used to operate when the main equipment inside the skid is under maintenance.

[0025] According to the above technical means, the main equipment inside the skid is responsible for normal operation, while the standby equipment inside the skid is in a standby state. Once a failure occurs to the main equipment inside the skid or it needs to be shut down for maintenance, the standby equipment inside the skid can be immediately started to take over the work of the main equipment inside the skid, thus ensuring the continuous and stable operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 This is a schematic structural diagram of a gas transmission device provided by an embodiment of the present application.

[0028] Reference numerals:

[0029] 10 - Overall gas transmission device; 1 - Inlet valve group skid unit; 2 - Filter skid unit; 3 - Electric heating skid unit; 4 - Metering skid unit; 5 - Pressure regulating skid unit; 6 - Outlet valve group skid unit. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. is based on the orientation or relative positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. Without special instructions, in the case of satisfying the relative positional relationship shown in the accompanying drawings, the above-described orientation description can be flexibly set during the actual application process.

[0032] The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0033] In the description of the present application, unless otherwise specified, " / " means "or", for example, A / B may mean A or B. The "and / or" herein is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, "at least one" means one or more.

[0034] In the embodiments of the present application, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, article or device comprising such element.

[0035] In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean for the purpose of example, illustration or explanation. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0036] With the gradual increase of China's population and the gradual advancement of the industrialization process, the actually available land is getting less and less, and the government's approval for land use is becoming more and more strict. Therefore, exploring a skid-mounted integration method with an extremely low floor area has gradually become the focus of attention of engineers.

[0037] As a clean energy source, natural gas has broad market application prospects in various industrial fields in China. With the gradual improvement of industrial integration technology, domestic natural gas pipelines have begun to process equipment through skid-mounted and factory prefabrication methods to achieve engineering construction. Skid-mounted means that process equipment, pipeline valves, instrumentation and electrical equipment, etc. are centrally assembled on a base to form a combined unit and can independently achieve the required functions. Factory prefabrication means that pipe fittings such as valves, elbows, tees, blind plates, etc., and the part of the pipeline they are connected to, complete processes such as beveling, welding, and post-treatment in the factory, and then manufacture a pipeline product. Most of the installation and welding work of skid-mounted and prefabricated equipment and facilities is completed in the factory, thus greatly reducing the engineering on-site construction workload, shortening the engineering installation cycle, and at the same time being conducive to ensuring the installation quality and facilitating relocation and transportation.

[0038] At present, skid-mounted equipment has been applied in gas transmission pipeline stations, but its scope is limited to small and partial process equipment and facilities, and has not been extended to the entire station. A large number of pipelines, pipe fittings and equipment still need to be assembled and welded on site, which is time-consuming and laborious, and it is also difficult to ensure the installation quality. Moreover, the floor plan of the loose parts installation occupies a large area, taking up a large amount of land acquisition area. Gas transmission stations require a more compact layout. In addition, the construction speed of gas transmission pipelines still cannot meet the engineering requirements of fast construction and fast commissioning. The traditional construction mode of gas transmission pipelines has a long acquisition cycle, low construction efficiency, and it is difficult to guarantee the engineering quality. Gas transmission pipeline stations include compressor stations, pigging stations and distribution stations. Among these stations, the distribution station has the largest number of equipment. Integrating the equipment of the distribution station into a whole skid can accelerate the construction speed of gas transmission pipelines and improve the installation quality.

[0039] It should be noted that the present application places no restrictions on the gas transmission device 10. For example, the gas transmission device 10 can be a gas transmission and distribution station.

[0040] It can be understood that the gas transmission and distribution station can select the modules to be skid-mounted according to the process functional areas to achieve the functional disassembly of the distribution station yard.

[0041] For example, by obtaining the design parameters of the gas transmission and distribution station, the station equipment can be initially determined. The station equipment includes the quantity of process equipment, instrument equipment, and power equipment. After that, the station equipment can be optimized and combined, and the overall layout of the installation dimensions of the plane and the outer shape inside the skid can be determined according to the quantity and size of the equipment, so as to determine the final equipment quantity and size. After that, the optimized gas transmission and distribution station can be divided into skids, and the interface between different skids can be established. After that, the equipment design drawings and the overall skid-mounted design drawings can be obtained. After that, multiple gas transmission skid-mounted units can be manufactured and subjected to system integration testing. After that, the transportation and hoisting plans can be determined, and the process equipment, instruments, power, and communication facilities can be obtained. After that, mechanized construction can be carried out to obtain the gas transmission and distribution station.

[0042] In this way, the pipeline length can be shortened, and the quantity and size of equipment and facilities can be reduced, so as to obtain the initial gas transmission and distribution station.

[0043] It should be noted that by reasonably optimizing and integrating the installation of the original scattered equipment and pipeline components, and placing the equipment inside the skid on the steel structure supports, the equipment inside the skid for on-site installation can be obtained. After that, the equipment inside the skid is subjected to stress checking and fixed installation, and the gas transmission skid-mounted unit can be obtained. The external interfaces of the gas transmission skid-mounted unit can uniformly adopt flange connections.

[0044] It should be noted that based on the gas transmission pipeline distribution station, a preset skid-mounted process flow diagram, a preset skid-mounted process installation diagram, and a preset general layout plan can be drawn in sequence, so as to obtain a preset design document system.

[0045] It should be noted that for stations of the same type and scale, they can be designed, acquired, and constructed according to the preset design document system.

[0046] In this way, the project construction can be accelerated and the construction period can be shortened.

[0047] It can be understood that since skid-mounted is equipment-centered and aims to achieve process functions. Therefore, it is necessary to consider meeting the conditions of conventional transportation and economy.

[0048] Optionally, the diameter of the main process pipeline is less than or equal to the preset diameter, the length of the gas transmission skid-mounted unit is less than or equal to the first preset dimension, the width of the gas transmission skid-mounted unit is less than or equal to the first preset dimension, and the height of the gas transmission skid-mounted unit is less than or equal to the first preset dimension.

[0049] It should be noted that this application does not limit the preset diameter, the first preset dimension, the second preset dimension, and the third preset dimension. For example, the diameter of the main process pipeline can be 406 mm, 400 mm, 350 mm, 300 mm, or 200 mm, the first preset dimension can be 17 m, the second preset dimension can be 2.5 m, and the third preset dimension can be 3.0 m.

[0050] It should be noted that the skid-mounted transportation and hoisting plan can be installed based on the preset general layout plan and combined with the skid-mounted method.

[0051] Exemplarily, the installation sequence can be: for the equipment skids with larger volume and weight, they are preferentially arranged, and the transportation and hoisting sequences are kept consistent, which are the filtration and separation skid, the electric heater skid, the metering skid, the pressure regulating skid, the outbound valve group skid, the inbound valve group skid, and the factory prefabricated pipe fittings in turn. After all the skids are transported and hoisted to the designated positions on site, then the pipeline loose parts are integrated, and the skid-mounted modules are paired and spliced with the external pipelines through flange forms, and then the overall skid-mounted gas distribution station is formed.

[0052] It should be noted that the equipment and facilities can be centrally acquired according to the skid-mounted situation.

[0053] In this way, the efficiency of acquiring equipment and facilities can be improved, paperless process office and electronic signing can be realized, the acquisition cost can be reduced, and thus the cycle of acquiring equipment and facilities can be shortened.

[0054] It should be noted that mechanized construction relies on automated equipment and prefabrication factories, identifies the pipelines by pipe section numbers, and completes their cutting, bevel grinding, and internal pipe cleaning. Then, the welds are identified by weld numbers to complete the weld joint pairing. Then, the on-site welding is completed through the identification of welder numbers. Finally, the pipelines are subjected to non-destructive testing, anti-corrosion post-treatment processes, and inspection tests and quality confirmation to complete the construction and installation of the entire gas transmission and distribution station.

[0055] It is understandable that by standardizing, integrating, and skid-mounting the process design of gas transmission pipeline stations, and intensifying the acquisition of equipment and facilities, factory manufacturing, and marketization of device operation, the quality of project construction can be improved, the construction period can be shortened, and the floor area can be reduced.

[0056] In some embodiments, the pipeline diameter and the processing capacity of the equipment can be determined based on the gas transmission volume and the design pressure, and then the number of equipped devices can be determined according to the functional requirements and standby conditions, and finally the number of devices and components included in each functional block skid can be determined.

[0057] As Figure 1 shown, the gas transmission device 10 includes a gas transmission pipeline and a plurality of gas transmission skid-mounted units. Among them, the plurality of gas transmission skid-mounted units are flange-connected to the gas transmission pipeline. The gas transmission skid-mounted unit is used to control the transported gas, and the gas transmission skid-mounted unit includes: a skid-mounted base, in-skid equipment, and a flange. The skid-mounted base is used to fix the in-skid equipment, and the skid-mounted base is also used to support the in-skid equipment.

[0058] According to the above technical means, the plurality of gas transmission skid-mounted units provided in this embodiment are flange-connected to the gas transmission pipeline. Since the gas transmission skid-mounted unit includes: a skid-mounted base, in-skid equipment, and a flange, and the skid-mounted base is used to fix the in-skid equipment, the plurality of gas transmission skid-mounted units can be connected to the gas transmission pipeline through the flange, thereby realizing the connection between the plurality of gas transmission skid-mounted units, so that the gas can be transmitted through the plurality of gas transmission skid-mounted units. Further, the structure of the gas transmission device 10 can be made more compact, facilitating the installation and disassembly of the gas transmission device 10.

[0059] In some embodiments, the equipment inside the skid-mounted unit includes: an inlet valve group skid unit 1, a filter skid unit 2, an electric heating skid unit 3, a metering skid unit 4, a pressure regulating skid unit 5, and an outlet valve group skid unit 6. The inlet valve group skid unit 1 includes: a first skid-mounted base, inlet valve equipment, and a flange. The first skid-mounted base is used to fix the inlet valve equipment. The filter skid unit 2 includes: a second skid-mounted base, filter equipment, and a flange. The second skid-mounted base is used to fix the filter equipment. The electric heating skid unit 3 includes: a third skid-mounted base, electric heating equipment, and a flange. The third skid-mounted base is used to fix the electric heating equipment. The metering skid unit 4 includes: a fourth skid-mounted base, metering valve equipment, and a flange. The fourth skid-mounted base is used to fix the metering equipment. The pressure regulating skid unit 5 includes: a fifth skid-mounted base, pressure regulating equipment, and a flange. The fifth skid-mounted base is used to fix the pressure regulating equipment. The outlet valve group skid unit 6 includes: a sixth skid-mounted base, outlet valve equipment, and a flange. The sixth skid-mounted base is used to fix the outlet valve equipment. The inlet valve equipment is used to control the inflow of gas. The filter equipment is used to filter gas. The electric heating equipment is used to adjust the temperature of gas. The metering equipment is used to collect the flow data of gas. The pressure regulating equipment is used to adjust the pressure of gas. The outlet valve equipment is used to control the outflow of gas..

[0060] According to the above technical means, the inflow of gas can be controlled by the inlet valve group skid unit 1 to ensure that it can be quickly closed to cut off the gas source in case of emergency, thus ensuring the safety of the equipment inside the station. By filtering gas through the filter skid unit 2, it can be avoided that too many impurities in natural gas affect the quality of natural gas. By adjusting the temperature of gas through the electric heating skid unit 3, low-temperature natural gas can be heated to prevent the formation of hydrates or pipeline blockage in the pipeline. By collecting the flow data of gas through the metering skid unit 4, the flow rate of natural gas entering the distribution station can be accurately measured, thus providing a basis for subsequent energy management. By adjusting the pressure of gas through the pressure regulating skid unit 5, high-pressure natural gas can be adjusted to a pressure range suitable for downstream users. By controlling the outflow of gas through the outlet valve group skid unit 6, the gas source can be cut off in case of emergency, thus ensuring the safety of downstream users.

[0061] In some embodiments, the inlet valve group skid unit 1 and the filter skid unit 2 are flange-connected through a gas transmission pipeline and a flange. The filter skid unit 2 and the electric heating skid unit 3 are flange-connected through a gas transmission pipeline and a flange. The electric heating skid unit 3 and the metering skid unit 4 are flange-connected through a gas transmission pipeline and a flange. The metering skid unit 4 and the pressure regulating skid unit 5 are flange-connected through a gas transmission pipeline and a flange. The pressure regulating skid unit 5 and the outlet valve group skid unit 6 are flange-connected through a gas transmission pipeline and a flange.

[0062] According to the above technical means, by flange - connecting the inlet valve group skid unit 1 with the filter skid unit 2, the filter skid unit 2 with the electric heating skid unit 3, the electric heating skid unit 3 with the metering skid unit 4, the metering skid unit 4 with the pressure - regulating skid unit 5, and the pressure - regulating skid unit 5 with the outlet valve group skid unit 6 through flanges. In this way, the transportation of the inlet valve group skid unit 1, the filter skid unit 2, the electric heating skid unit 3, the metering skid unit 4, the pressure - regulating skid unit 5, and the outlet valve group skid unit 6 can be facilitated. When equipment needs to be repaired or replaced, the flange connection can be quickly disassembled by loosening the bolts. In this way, disassembly and transportation are convenient, the combination is more flexible, and time and labor costs are greatly saved.

[0063] In some embodiments, the inlet valve equipment includes: The inlet valve group skid unit includes: an inlet valve, a first pressure gauge, a first pressure controller, and a first pipeline. The first pipeline is communicated with the gas transmission pipeline. The first pressure gauge is used to monitor the pressure of the gas in the first pipeline, and the first pressure controller is used to adjust the pressure of the gas in the first pipeline.

[0064] According to the above technical means, the inlet valve can control the inflow of natural gas and ensure the pressure stability of the gas transmission device 10.

[0065] In some embodiments, the filter equipment includes: a filter, a first cut - off valve, a differential pressure gauge, a second pressure gauge, a second pressure controller, and a second pipeline. The second pipeline is communicated with the gas transmission pipeline. The filter is used to filter the impurities of the gas, the first cut - off valve is used to cut off the flow of the gas in the second pipeline, the differential pressure gauge is used to monitor the pressure difference before and after gas filtration, the second pressure gauge is used to monitor the pressure of the gas in the second pipeline, and the second pressure controller is used to adjust the pressure of the gas in the second pipeline.

[0066] According to the above technical means, by skidding multiple devices responsible for filtering natural gas in the gas transmission device 10, the workload of installing multiple devices for filtering natural gas on - site can be reduced, and the floor area can be saved.

[0067] In some embodiments, the electric heating equipment includes: an electric heater, a second cut - off valve, a temperature gauge, a third pressure gauge, a third pressure controller, and a third pipeline. The third pipeline is communicated with the gas transmission pipeline. The second cut - off valve is used to cut off the flow of the gas in the third pipeline, the temperature gauge is used to monitor the temperature of the gas, the third pressure gauge is used to monitor the pressure of the gas in the third pipeline, and the third pressure controller is used to adjust the pressure of the gas in the third pipeline.

[0068] According to the above technical means, by skidding multiple devices responsible for regulating the temperature of natural gas in the gas transmission device 10, the workload of installing multiple devices for regulating the temperature of natural gas on - site can be reduced, and the floor area can be saved.

[0069] In some embodiments, the metering device includes: a flow meter, a third shut-off valve, a flow instrument, a fourth pressure gauge, a fourth pressure controller, and a fourth pipeline. The fourth pipeline is connected to the gas transmission pipeline. The third shut-off valve is used to cut off the flow of gas in the fourth pipeline. The flow instrument is used to measure the flow rate of gas. The fourth pressure gauge is used to monitor the pressure of gas in the fourth pipeline. The fourth pressure controller is used to adjust the pressure of gas in the fourth pipeline.

[0070] According to the above technical means, by skidding a plurality of devices responsible for collecting natural gas data in the gas transmission device 10, the workload of installing a plurality of devices for collecting natural gas data on site can be reduced, and the floor area can be saved.

[0071] In some embodiments, the pressure regulating device includes: an emergency cut-off valve, a pressure regulating valve, a fourth shut-off valve, a pressure instrument, and a fifth pipeline. The fifth pipeline is connected to the gas transmission pipeline. The pressure instrument includes a fifth pressure gauge and a fifth pressure controller. The fourth shut-off valve is used to cut off the flow of gas in the fifth pipeline. The pressure instrument is used to monitor the pressure of gas. The fifth pressure gauge is used to monitor the pressure of gas in the fifth pipeline. The fifth pressure controller is used to adjust the pressure of gas in the fifth pipeline.

[0072] According to the above technical means, by skidding a plurality of devices responsible for regulating the pressure of natural gas in the gas transmission device 10, the workload of installing a plurality of devices for regulating the pressure of natural gas on site can be reduced, and the floor area can be saved.

[0073] It should be noted that for a station yard with limited land area, the metering skid unit 4, the pressure regulating skid unit 5, and the outbound valve group skid unit 6 can be adjusted from a planar installation layout to a three-dimensional installation.

[0074] In some embodiments, the metering skid unit 4 is located on the first layer, the pressure regulating skid unit 5 and the outbound valve group skid unit 6 are located on the second layer, and the second layer is above the first layer.

[0075] Optionally, the metering skid unit 4 is located on the first layer of the distribution skid base, the pressure regulating skid unit 5 and the outbound valve group skid unit 6 are located on the second layer of the distribution skid base, and the second layer of the distribution skid base is above the first layer of the distribution skid base.

[0076] Exemplarily, the metering skid unit 4 is set as the lower layer (i.e., the first layer), and the pressure regulating skid unit 5 and the outbound valve group skid unit 6 are set as the upper layer (i.e., the second layer).

[0077] It should be noted that since the metering skid unit 4, the pressure regulating skid unit 5, and the outbound valve group skid unit 6 need to be repaired when a failure occurs, maintenance platforms need to be set at the first position and the second position and fixed by steel structure brackets.

[0078] Exemplarily, maintenance tools can be set at the first position.

[0079] In this way, it is convenient to repair and disassemble the metering skid unit 4, the pressure regulating skid unit 5 and the outbound valve group skid unit 6.

[0080] According to the above technical means, the three-dimensional space can be fully utilized to make the equipment layout more compact.

[0081] In some embodiments, the equipment in the main skid and the equipment in the standby skid are provided, and the equipment in the standby skid is used to operate when the equipment in the main skid is under maintenance.

[0082] It should be noted that the equipment in the skid can be skidded in different combinations according to actual needs, and after stress analysis, it is further assembled into an integral and systematic skidded distribution station.

[0083] Exemplarily, the equipment in the skid can include 1 piece of equipment in the main skid and 1 piece of equipment in the standby skid, or can include 2 pieces of equipment in the main skid and 1 piece of equipment in the standby skid, or can include 3 pieces of equipment in the main skid and 1 piece of equipment in the standby skid.

[0084] According to the above technical means, the equipment in the main skid is responsible for normal operation, while the equipment in the standby skid is in a standby state. Once the equipment in the main skid fails or needs to be shut down for maintenance, the equipment in the standby skid can be immediately started to take over the work of the equipment in the main skid, so as to ensure the continuous and stable operation of the system.

[0085] It should be noted that different skid blocks can be combined according to different throughput.

[0086] In some embodiments, different skid blocks can be partially integrated into a three-dimensional skid block.

[0087] In this way, the floor area can be greatly saved.

[0088] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present application, and all should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A gas transmission device, characterized in that: include: Gas pipelines; Multiple gas transmission skid-mounted units, the multiple gas transmission skid-mounted units are connected to the gas transmission pipeline by flanges, the gas transmission skid-mounted units are used to control the transmitted gas, the gas transmission skid-mounted units include: a skid-mounted base, skid-mounted internal equipment, and a flange plate, and the skid-mounted base is used to fix the skid-mounted internal equipment.

2. The gas transmission device according to claim 1, characterized in that: The gas transmission skid unit includes: an inlet valve group skid unit, a filter skid unit, an electric heating skid unit, a metering skid unit, a pressure regulating skid unit and an outlet valve group skid unit. The inlet valve group skid unit includes: a first skid-mounted base, an inlet valve device, and the flange. The first skid-mounted base is used to fix the inlet valve device. The filter skid unit includes: a second skid-mounted base, a filter device, and the flange. The second skid-mounted base is used to fix the filter device. The electric heating skid unit includes: a third skid-mounted base, an electric heating device, and the flange. The third skid-mounted base is used to fix the electric heating device. The metering skid unit includes: a fourth skid-mounted base, a metering valve equipment, the flange, the fourth skid-mounted base is used to fix the metering equipment, the pressure regulating skid unit includes: a fifth skid-mounted base, a pressure regulating equipment, the flange, the fifth skid-mounted base is used to fix the pressure regulating equipment, the outlet valve group skid unit includes: a sixth skid-mounted base, an outlet valve equipment, the flange, the sixth skid-mounted base is used to fix the outlet valve equipment, the inlet valve equipment is used to control the inflow of gas, the filter equipment is used to filter gas, the electric heating equipment is used to adjust the temperature of gas, the metering equipment is used to collect gas flow data, the pressure regulating equipment is used to adjust the pressure of gas, and the outlet valve equipment is used to control the outflow of gas.

3. The gas transmission device according to claim 2, characterized in that: The inlet valve group skid unit is connected to the filter skid unit through the gas pipeline and the flange, the filter skid unit is connected to the electric heating skid unit through the gas pipeline and the flange, the electric heating skid unit is connected to the metering skid unit through the gas pipeline and the flange, the metering skid unit is connected to the pressure regulating skid unit through the gas pipeline and the flange, and the pressure regulating skid unit is connected to the outlet valve group skid unit through the gas pipeline and the flange.

4. The gas transmission device according to claim 3, characterized in that: The inlet valve equipment includes: an inlet valve, a first pressure gauge, a first pressure controller, and a first pipeline. The first pipeline is connected to the gas pipeline. The first pressure gauge is used to monitor the pressure of the gas in the first pipeline. The first pressure controller is used to adjust the pressure of the gas in the first pipeline.

5. The gas transmission device according to claim 3, characterized in that: The filter device includes: a filter, a first shut-off valve, a differential pressure meter, a second pressure gauge, a second pressure controller, and a second pipeline, wherein the second pipeline is connected to the gas transmission pipeline, the filter is used to filter impurities in the gas, the first shut-off valve is used to shut off the flow of gas in the second pipeline, the differential pressure meter is used to monitor the pressure difference before and after gas filtration, the second pressure gauge is used to monitor the pressure of the gas in the second pipeline, and the second pressure controller is used to adjust the pressure of the gas in the second pipeline.

6. The gas transmission device according to claim 3, characterized in that: The electric heating equipment includes: an electric heater, a second shut-off valve, a temperature meter, a third pressure gauge, a third pressure controller, and a third pipeline. The third pipeline is connected to the gas pipeline. The second shut-off valve is used to shut off the flow of gas in the third pipeline. The temperature meter is used to monitor the temperature of the gas. The third pressure gauge is used to monitor the pressure of the gas in the third pipeline. The third pressure controller is used to adjust the pressure of the gas in the third pipeline.

7. The gas transmission device according to claim 3, characterized in that: The metering equipment includes: a flow meter, a third shut-off valve, a flow meter, a fourth pressure gauge, a fourth pressure controller, and a fourth pipeline. The fourth pipeline is connected to the gas transmission pipeline. The third shut-off valve is used to shut off the flow of gas in the fourth pipeline. The flow meter is used to measure the flow of gas. The fourth pressure gauge is used to monitor the pressure of the gas in the fourth pipeline. The fourth pressure controller is used to adjust the pressure of the gas in the fourth pipeline.

8. The gas transmission device according to claim 3, characterized in that: The pressure regulating equipment includes: an emergency shut-off valve, a pressure regulating valve, a fourth shut-off valve, a pressure instrument, and a fifth pipeline. The fifth pipeline is connected to the gas transmission pipeline. The pressure instrument includes a fifth pressure gauge and a fifth pressure controller. The fourth shut-off valve is used to cut off the flow of gas in the fifth pipeline. The pressure instrument is used to monitor the pressure of the gas. The fifth pressure gauge is used to monitor the pressure of the gas in the fifth pipeline. The fifth pressure controller is used to adjust the pressure of the gas in the fifth pipeline.

9. The gas transmission device according to claim 3, characterized in that: The metering skid unit is located on the first floor, the pressure regulating skid unit and the outlet valve group skid unit are located on the second floor, and the second floor is located above the first floor.

10. The gas transmission device according to any one of claims 1 to 9, characterized in that: The skid-mounted internal equipment includes: main skid-mounted internal equipment and spare skid-mounted internal equipment, and the spare skid-mounted internal equipment is used to operate when the main skid-mounted internal equipment is under maintenance.

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