A gas storage injection-production integrated cut-off skid device and method

Abstract

The application discloses an injection-production integrated cut-off skid device and method for gas storage, and belongs to the technical field of gas storage construction. The device comprises a station site platform; a gas production cut-off area and a gas injection cut-off area are arranged on the station site platform; a frame is arranged in the gas production cut-off area, and a gas injection module is arranged in the frame; a plurality of pressure bearing plates are arranged in the gas injection cut-off area, and a first control pipe and a second control pipe are symmetrically arranged on each pressure bearing plate; the first control pipe is connected to the gas injection module through a drainage pipe; the second control pipe is connected to the gas injection module through a shunt pipe; and the first control pipe and the second control pipe are used for gas production and cut-off skid. Through modular integration, functions such as emergency cut-off, remote venting, safety valve venting and process switching are highly integrated and combined in one device, thereby forming an injection-production integrated cut-off skid, and the switching of a gas injection process and a gas production process can be realized.

Description

Technical Field

[0001] This invention belongs to the field of gas storage construction technology, and relates to an integrated injection and extraction cut-off skid-mounted device and method for gas storage. Background Technology

[0002] Gas storage facilities are fundamental energy infrastructures that integrate functions such as seasonal peak shaving, emergency gas supply, and national strategic energy reserves. Increasing the working gas volume of gas storage facilities is an important measure for energy security and plays a vital role in energy security. Their main functions include gas injection and gas extraction.

[0003] Increasing the working gas volume of gas storage facilities means increasing their effective storage capacity and rapid response capabilities, which is crucial for addressing growing energy demands and enhancing the resilience of energy systems. Through technological innovation and infrastructure construction, improving gas storage efficiency and shortening injection-production cycles allows for more effective utilization of limited underground space resources, achieving efficient energy allocation and utilization.

[0004] In traditional gas storage facility construction, the gas extraction cutoff zone and the gas injection cutoff zone are often set up separately. While this design ensures operational safety to a certain extent, it also leads to problems such as limited functionality and long design and construction cycles. The separation of the gas extraction and injection processes not only increases the complexity and cost of facility construction but also limits the overall operational efficiency of the gas storage facility. Furthermore, independently set cutoff zones may be difficult to switch quickly in emergencies, affecting the gas storage facility's emergency response capabilities. Summary of the Invention

[0005] This invention provides an integrated injection and production cut-off skid-mounted device and method for gas storage facilities, which solves the technical problems of existing technologies where the gas production cut-off zone and the gas injection cut-off zone are set up separately, with limited functions and long design and construction cycles.

[0006] To achieve the above objectives, the present invention employs the following technical solution: In a first aspect, the present invention provides an integrated injection and production cut-off skid-mounted device for a gas storage facility, comprising a station platform; the station platform is provided with a gas production cut-off zone and a gas injection cut-off zone; a frame is provided within the gas production cut-off zone, and a gas injection module is provided within the frame; a plurality of pressure-bearing plates are provided within the gas injection cut-off zone, and a first control pipe and a second control pipe are symmetrically arranged on each pressure-bearing plate; the first control pipe is connected to the gas injection module through a diversion pipe; the second control pipe is connected to the gas injection module through a branch pipe, and the first and second control pipes are used for gas production and cut-off skid-mounting.

[0007] Furthermore, the frame includes a first connecting frame, a second connecting frame, and a support frame; the frame is divided into two layers, each layer including two parallel first connecting frames, which are connected by a number of second connecting frames; the support frame is vertically arranged, and the first connecting frames, the second connecting frames, and the support frame are perpendicular to each other.

[0008] Furthermore, a shock-absorbing plate is installed at the bottom of the support frame.

[0009] Furthermore, the gas injection module includes a first gas injection pipe and a second gas injection pipe; the second gas injection pipe is connected to a drainage pipe; the first gas injection pipe is connected to a branch pipe; and an inlet is provided at one end of the first gas injection pipe, which is connected to a connecting gas pipeline.

[0010] Furthermore, a sealing sleeve is provided between the first air injection pipe and the diversion pipe.

[0011] Furthermore, the pressure plate is provided with two first steel frames and two second steel frames; the first and second steel frames are staggered and connected end to end, arranged along the edge of the pressure plate; the two second steel frames are arranged in parallel, and several sets of transverse steel frames perpendicular to them are arranged between the two second steel frames; several longitudinal steel frames perpendicular to them are arranged on the transverse steel frames; supports are provided at the staggered nodes between the transverse and longitudinal steel frames; several sets of pipelines are arranged on the transverse and longitudinal steel frames; the pipelines are connected to the first control pipe and the second control pipe; the pipelines are connected to an electrical control module, which is located at one end of the pressure plate.

[0012] Furthermore, a valve sleeve, a pressure gauge, a first safety valve, an injection / production cut-off skid, and a second safety valve are sequentially and linearly arranged on both the first and second control pipes; both the first and second safety valves are connected to the first and second control pipes via cut-off pipelines; a second vent pipe is provided at the outer end of the first safety valve; a first vent pipe is provided at the outer end of the second safety valve 513; a metering device is provided at the lower end of the pressure gauge, extending into the first and second vent pipes; a conveying pipe is provided in the extension direction of the first and second vent pipes, and the conveying pipe is connected to the first and second control pipes.

[0013] Furthermore, a pressure detector is installed inside the injection-production cut-off skid.

[0014] Furthermore, two sets of control tubes are symmetrically arranged between the first control tube and the second control tube; multiple sets of guide tubes connecting the first control tube and the second control tube are linearly arranged on each control tube; a first warning light is provided on the guide tube; a second warning light is provided on the control tube; and a protective ring is provided on the control tube.

[0015] Secondly, the present invention provides an integrated injection and production cut-off skid-mounted method for a gas storage facility, based on the aforementioned integrated injection and production cut-off skid-mounted device for a gas storage facility, comprising the following steps: First, the gas is connected to the connecting gas pipeline through the first and second gas injection pipes on the gas injection module, forming a bidirectional access and diversion injection. Then, the gas enters the first and second control pipes through the guide pipe and the diversion pipe respectively, completing the injection and preliminary data collection. The branch pipeline connects to each pipe, and the airflow changes are monitored by the airflow meter and fed back to the electrical control module. According to the normal operation of the conveying, the airflow passes through the first control pipe and the second control pipe in sequence. The pressure changes are observed by the pressure gauge. The first safety valve and the second safety valve cut off the pipeline to open the conveying, reduce the airflow impact, and guide the flow to be conveyed by the conveying pipe. As the airflow travels along the path, a portion of the airflow passes through the distribution control pipe and is then diverted by the guide pipe into the first control pipe and the second control pipe. When the airflow meter becomes unstable, the first and second warning lights flash and the information is sent back to the background. The first safety valve, injection-production cut-off skid, and second safety valve work together to open the first and second vent pipes to release pressure exceeding the limit and exhaust gas during operation, as well as to achieve emergency venting in emergency situations.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention discloses an integrated injection-production cut-off skid-mounted device and method for gas storage facilities. It features digital management, intelligent operation, and unattended operation; automated operation via a remote terminal control system, enabling real-time data acquisition, analysis, and uploading; and integrated functionality, compact structure, and easy transport, offering advantages such as compact design, reliable operation, low operating costs, and energy efficiency. Furthermore, the device can be flexibly configured according to site requirements (inbound / outbound cut-off skids and outbound cut-off skids). The bottom skid is made of checkered steel plate, and through modular integration, functions such as emergency cut-off, remote venting, safety valve venting, and process switching are highly integrated into a single unit, forming an integrated injection-production cut-off skid that allows for switching between injection and production processes. In addition, the overall operating cost of this system is low, resulting in good economic benefits. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the integrated injection and extraction cut-off skid-mounted device of the present invention; Figure 2This is a schematic diagram of the gas injection module of the integrated injection and extraction cut-off skid-mounted device of the present invention; Figure 3 This is a schematic diagram of the pressure plate of the integrated injection and extraction cut-off skid-mounted device of the present invention; Figure 4 This is a first-view schematic diagram of the gas injection cutoff zone of the integrated injection and production cutoff skid-mounted device of the present invention; Figure 5 This is a second-view schematic diagram of the gas injection cutoff zone of the integrated injection and production cutoff skid-mounted device of the present invention.

[0019] The components include: 1. Platform; 2. Frame; 3. Injection module; 4. Pressure plate; 5. First control pipe; 6. Second control pipe; 201. First connecting frame; 202. Second connecting frame; 203. Support frame; 204. Shock absorber; 301. First injection pipe; 302. Second injection pipe; 303. Diverter pipe; 304. Sealing sleeve; 305. Drainage pipe; 401. First steel frame; 402. Second steel frame; 403. Transverse steel frame; 404. Support; 40 5. Longitudinal steel frame; 406. Electrical control module; 407. Sub-pipeline; 501. Valve sleeve; 502. Pressure gauge; 503. Cut-off pipeline; 504. First safety valve; 505. Injection-production cut-off skid; 506. Pressure detector; 507. Sub-control pipe; 508. First warning light; 509. Guide pipe; 510. Protective ring; 511. Second warning light; 512. Delivery pipe; 513. Second safety valve; 514. First vent pipe; 515. Second vent pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0026] The present invention will now be described in further detail with reference to the accompanying drawings: Example 1: See Figure 1 This invention discloses an integrated injection and production cut-off skid-mounted device for a gas storage facility, comprising a station platform 1; the station platform 1 is provided with a gas production cut-off zone and a gas injection cut-off zone; a frame 2 is provided in the gas production cut-off zone, and a gas injection module 3 is provided in the frame 2; a plurality of pressure plates 4 are provided in the gas injection cut-off zone, and a first control pipe 5 and a second control pipe 6 are symmetrically arranged on each pressure plate 4; the first control pipe 5 is connected to the gas injection module 3 through a diversion pipe 305; the second control pipe 6 is connected to the gas injection module 3 through a diversion pipe 303, and the first control pipe 5 and the second control pipe 6 are used for gas production and cut-off skid-mounting.

[0027] Preferably, the integrated injection and extraction skid-mounted device is suitable for gas storage facilities and has self-safety protection function; it is functionally integrated, compact in structure, easy to transport, and has advantages such as compact structure, reliable operation, low operating cost, and energy saving. It is miniaturized and flexibly matched, and can be flexibly matched according to the needs of the station (inbound and outbound skids and outbound skids). The bottom skid of the device is made of patterned steel plate.

[0028] Example 2: See Figure 2 In this embodiment, the gas injection module 3 includes a first gas injection pipe 301, a second gas injection pipe 302, a diversion pipe 303, a sealing sleeve 304, and a drainage pipe 305. The first gas injection pipe 301 and the second gas injection pipe 302 are arranged in parallel. One end of the first gas injection pipe 301 is provided with an inlet. Four diversion pipes 303 are linearly arranged on the first gas injection pipe 301. A sealing sleeve 304 is provided between the diversion pipe 303 and the first gas injection pipe 301. Four drainage pipes are linearly arranged on the second gas injection pipe 302. 305, the drainage pipe 305 and the diversion pipe 303 are respectively connected to the first control pipe 5 and the second control pipe 6. Through the drainage pipe 305 and the diversion pipe 303, bidirectional delivery operation can be performed. Through the first gas injection pipe 301 and the second gas injection pipe 302 on the gas injection module 3, the gas is connected to the connecting gas pipeline through the inlet, forming a bidirectional access diversion injection. Then the gas enters the first control pipe 5 and the second control pipe 6 through the drainage pipe 305 and the diversion pipe 303 respectively, completing the injection and preliminary collection state.

[0029] The frame 2 in this embodiment includes a first connecting frame 201, a second connecting frame 202, a support frame 203, and a shock absorber 204. The first connecting frames 201 are arranged in two parallel sets. Eight second connecting frames 202 are arranged horizontally linearly between the two sets of first connecting frames 201. The eight second connecting frames 202 are arranged as a group. The eight second connecting frames 202 extend downward along the two sets of first connecting frames 201. A support frame 203 is provided at the junction of the first connecting frame 201 and the second connecting frame 202. A shock absorber 204 is provided at the bottom of the support frame 203. The shock absorber 204 can support the whole and maintain a stable state.

[0030] Example 3: Please see Figure 3In this embodiment, the pressure plate 4 includes a first steel frame 401, a second steel frame 402, a transverse steel frame 403, a support 404, a longitudinal steel frame 405, an electrical control module 406, and branch lines 407. Both the first steel frame 401 and the second steel frame 402 are provided in two sets, with the two sets of first steel frames 401 and two sets of second steel frames 402 connected end-to-end in an alternating manner. Four sets of transverse steel frames 403 are linearly arranged between the two sets of second steel frames 402. Longitudinal steel frames 405 are provided on the four sets of transverse steel frames 403. At the intersection points of the longitudinal steel frames 405 and the transverse steel frames 403, there are... The bracket 404 supports the overall configuration. Multiple sets of pipelines 407 are arranged on the horizontal steel frame 403 and the vertical steel frame 405. Each pipeline 407 has an airflow meter inside. One end of each pipeline 407 is equipped with an electronic control module 406. The electronic control module 406 contains a control processor, an antenna, and a signal transceiver module that are electrically connected in sequence. The control processor is an ATC89C51 and the signal transceiver module is an NRF24L01. The electronic control module 406 enables overall automated monitoring and control. Valve and Pipeline Design: This unit mainly includes valves, pipelines, fittings, and electrical / instrumentation junction boxes. The design and layout of these components are reasonable, ensuring normal gas delivery while facilitating equipment installation and maintenance. The integrated inlet / outlet unit's pipelines are laid in open condition with movable supports. Consideration is given to ease of maintenance and operation, as well as aesthetics, with appropriate spacing between pipelines. The integrated inlet / outlet unit's pipelines use seamless steel pipes of material L450Q, manufactured in accordance with GB / T9711. Fittings are procured according to the national standard GB / T12459.

[0031] Example 4: See Figure 3 , Figure 4 and Figure 5In this embodiment, the first control pipe 5 and the second control pipe 6 are arranged in parallel, and two sets of control pipes 507 are symmetrically arranged between the first control pipe 5 and the second control pipe 6. A valve sleeve 501, a pressure gauge 502, a first safety valve 504, an injection-production cut-off skid 505, and a second safety valve 513 are sequentially and linearly arranged on the first control pipe 5 and the second control pipe 6. The pressure gauge 502, the first safety valve 504, the injection-production cut-off skid 505, and the second safety valve 513 can be used to switch between the gas injection process and the gas production process. Both the first safety valve 504 and the second safety valve 513 have cut-off lines 503 connecting the first control pipe 5 and the second control pipe 6 on their outer sides. The outer ends of the first safety valve 504 and the second safety valve 513 are respectively provided with a first vent pipe 514 and a second vent pipe 515. The injection-production cut-off skid 505 has an inner... The unit is equipped with a pressure detector 506, model BY-2003P. The lower end of the pressure gauge 502 is equipped with a meter that extends into the first vent pipe 514 and the second vent pipe 515. The meter is a Fluke 700 series. The extension direction of the first vent pipe 514 and the second vent pipe 515 is provided with a delivery pipe 512. Through the pressure detector 506, the internal air pressure change can be detected in time. The sub-control pipe 507 is linearly equipped with multiple sets of guide pipes 509 that connect the first control pipe 5 and the second control pipe 6. The guide pipe 509 is equipped with a first warning light 508. The sub-control pipe 507 is equipped with a second warning light 511. The first warning light 508 and the second warning light 511 are equipped with a signal transmitter inside. Through the signal transmitter, a feedback warning signal can be given. Modular integrated design: Through modular integration, functions such as emergency shut-off, remote venting, safety valve venting, and process switching are highly integrated into one unit, forming the gas injection shut-off skid, gas extraction shut-off skid, and injection-extraction shut-off skid 505. This design method can simplify the equipment structure, reduce the difficulty of equipment installation and maintenance, thereby reducing the cost of equipment use and improving the efficiency of equipment use.

[0032] Example 5: This invention provides a method for an integrated injection-production cut-off skid-mounted device suitable for gas storage facilities, comprising the following steps: S1. First, the gas is connected to the connecting gas pipeline through the first gas injection pipe 301 and the second gas injection pipe 302 on the gas injection module 3, forming a bidirectional access and diversion injection. Then, the gas passes through the guide pipe 305 and the diversion pipe 303 and enters the first control pipe 5 and the second control pipe 6 respectively, completing the injection and preliminary collection state. S2, the branch line 407 connects to each pipeline, and the airflow changes are monitored by the airflow meter and fed back to the electrical control module 406. According to the normal operation of the conveying, it passes through the first control pipe 5 and the second control pipe 6 in sequence. The pressure changes are observed by the pressure gauge 502. The conveying is opened by the outer cut-off pipeline 503 of the first safety valve 504 and the second safety valve 513 to reduce the impact of the airflow and guide the flow to be conveyed by the conveying pipe 512. S3. As the airflow path changes, a portion of the airflow passes through the control pipe 507 and is diverted by the guide pipe 509 into the first control pipe 5 and the second control pipe 6. When the airflow meter becomes unstable, the first warning light 508 and the second warning light 511 flash, providing rapid feedback. The signal transmitter then sends the information to the backend. S4, together with the first safety valve 504, the injection-production cut-off skid 505 and the second safety valve 513, opens the first vent pipe 514 and the second vent pipe 515 to release pressure exceeding the limit, exhaust gas during operation, and to achieve emergency venting in emergency situations, ensuring the safe operation of the equipment.

[0033] Through the above steps, an integrated injection and extraction skid-mounted device suitable for gas storage facilities is developed, which also has self-safety protection functions. It is functionally integrated, compact in structure, and easy to transport. It has advantages such as compact structure, reliable operation, low operating cost, and energy saving. It is miniaturized and flexibly matched, and can be flexibly matched according to the needs of the station (inbound and outbound skids and outbound skids). The bottom skid of the device is made of patterned steel plate.

[0034] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An integrated injection and extraction skid-mounted device for a gas storage facility, characterized in that, The system includes a station platform (1); a gas extraction cutoff area and a gas injection cutoff area are provided on the station platform (1); a frame (2) is provided in the gas extraction cutoff area, and a gas injection module (3) is provided in the frame (2); several pressure plates (4) are provided in the gas injection cutoff area, and a first control pipe (5) and a second control pipe (6) are symmetrically arranged on each pressure plate (4); the first control pipe (5) is connected to the gas injection module (3) through a diversion pipe (305); the second control pipe (6) is connected to the gas injection module (3) through a diversion pipe (303), and the first control pipe (5) and the second control pipe (6) are used for gas extraction and cutoff skid mounting.

2. The integrated injection and extraction skid-mounted device for a gas storage facility according to claim 1, characterized in that, The frame (2) includes a first connecting frame (201), a second connecting frame (202), and a support frame (203); the frame (2) is divided into two layers, each layer including two parallel first connecting frames (201), which are connected by several second connecting frames (202); the support frame (203) is vertically arranged, and the first connecting frames (201), the second connecting frames (202), and the support frame (203) are perpendicular to each other.

3. The integrated injection and extraction skid-mounted device for a gas storage facility according to claim 2, characterized in that, The bottom of the support frame (203) is equipped with a shock-absorbing plate (204).

4. The integrated injection and extraction skid-mounted device for a gas storage facility according to claim 2, characterized in that, The gas injection module (3) includes a first gas injection pipe (301) and a second gas injection pipe (302); the second gas injection pipe (302) is connected to a drainage pipe (305); the first gas injection pipe (301) is connected to a diversion pipe (303); one end of the first gas injection pipe (301) is provided with an inlet and connected to a gas pipeline.

5. The integrated injection and extraction skid-mounted device for a gas storage facility according to claim 4, characterized in that, A sealing sleeve (304) is provided between the first gas injection pipe (301) and the diversion pipe (303).

6. The integrated injection and extraction skid-mounted device for a gas storage facility according to claim 1, characterized in that, The pressure plate (4) is provided with two first steel frames (401) and two second steel frames (402); the first steel frames (401) and the second steel frames (402) are staggered and connected end to end, and arranged along the edge of the pressure plate (4); the two second steel frames (402) are arranged in parallel, and several sets of transverse steel frames (403) perpendicular to them are arranged between the two second steel frames (402); several longitudinal steel frames (405) perpendicular to them are arranged on the transverse steel frames (403); a bracket (404) is provided at the staggered node between the transverse steel frames (403) and the longitudinal steel frames (405); several sets of branch pipelines (407) are arranged on the transverse steel frames (403) and the longitudinal steel frames (405); the branch pipelines (407) are connected to the first control pipe (5) and the second control pipe (6); the branch pipelines (407) are connected to an electrical control module (406), and the electrical control module (406) is located at one end of the pressure plate (4).

7. The integrated injection and extraction skid-mounted device for a gas storage facility according to claim 1, characterized in that, A valve sleeve (501), a pressure gauge (502), a first safety valve (504), an injection-production cut-off skid (505), and a second safety valve (513) are sequentially and linearly arranged on the first control tube (5) and the second control tube (6); the first safety valve (504) and the second safety valve (513) are both connected to the first control tube (5) and the second control tube (6) through a cut-off pipeline (503); a second vent pipe (515) is provided at the outer end of the first safety valve (504); a first vent pipe (514) is provided at the outer end of the second safety valve (513); a metering device is provided at the lower end of the pressure gauge (502) that extends into the first vent pipe (514) and the second vent pipe (515); a delivery pipe (512) is provided in the extension direction of the first vent pipe (514) and the second vent pipe (515), and the delivery pipe (512) is connected to the first control tube (5) and the second control tube (6).

8. A skid-mounted integrated injection and production cut-off device for a gas storage facility according to claim 7, characterized in that, The injection cut-off skid (505) is equipped with a pressure detector (506).

9. The integrated injection and extraction skid-mounted device for a gas storage facility according to claim 1, characterized in that, Two sets of control tubes (507) are symmetrically arranged between the first control tube (5) and the second control tube (6); multiple sets of guide tubes (509) connecting the first control tube (5) and the second control tube (6) are linearly arranged on the sub-control tube (507); a first warning light (508) is provided on the guide tube (509); a second warning light (511) is provided on the sub-control tube (507); and a protective ring (510) is provided on the sub-control tube (507).

10. A skid-mounted method for integrated injection and production in a gas storage facility, characterized in that, An integrated injection and production cut-off skid-mounted device for a gas storage facility according to any one of claims 1 to 9 includes the following steps: First, the gas is connected to the connecting gas pipeline through the first gas injection pipe (301) and the second gas injection pipe (302) on the gas injection module (3) to form a bidirectional access and diversion injection. Then, the gas enters the first control pipe (5) and the second control pipe (6) through the diversion pipe (305) and the diversion pipe (303) respectively to complete the injection and preliminary collection state. The branch line (407) is connected to each pipeline. The airflow changes are monitored by the airflow meter and fed back to the electrical control module (406). According to the normal operation of the conveying, the airflow passes through the first control pipe (5) and the second control pipe (6) in sequence. The pressure changes are observed by the pressure gauge (502). The pipeline (503) is cut off by the first safety valve (504) and the second safety valve (513) to open the conveying, reduce the impact of the airflow, and guide the flow to be conveyed by the conveying pipe (512). As the airflow path changes, a portion of the airflow passes through the sub-control tube (507) and is diverted by the guide tube (509) into the first control tube (5) and the second control tube (6). When the airflow meter becomes unstable, the first warning light (508) and the second warning light (511) flash and the information is fed back to the background. The first safety valve (504), injection-production cut-off skid (505) and the second safety valve (513) work together to open the first vent pipe (514) and the second vent pipe (515) to release the pressure exceeding the limit and the exhaust gas during operation, as well as to realize accident venting in emergency situations.

Images