Intelligent management system for composite pipe type gas pipeline

Abstract

The utility model belongs to the technical field of fuel gas utilization engineering, and particularly relates to an intelligent management system for fuel gas utilization of a composite pipe type pipeline. The intelligent management system comprises an inner pipe, an outer pipe, a gate valve chamber, an extension pipe and an alarm system, the inner pipe is sleeved with the outer pipe to form a composite pipe type gas pipeline, gas circulates in the inner pipe, and a cavity is formed between the inner pipe and the outer pipe. Sluice valve chambers are additionally arranged on the gas pipeline at intervals, and electric control sluice valves are assembled in the sluice valve chambers; the outer pipe is connected with the gate valve chamber; one end of the extension pipe is connected with the outer pipe of the gate valve chamber or the air outlet end, and the other end of the extension pipe is guided into the air; and the alarm system is electrically connected with the electric control gate valve. The multi-pipe type design is adopted, intelligent management of pipeline gas can be effectively achieved, and deflagration disasters caused by gas leakage can be effectively retarded in time; the safety of the human settlement environment is guaranteed, and the life and property loss caused by detonation due to gas leakage is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas utilization engineering, and specifically relates to a multi-pipe pipeline gas utilization intelligent management system. Background Art

[0002] With the development and progress of society, natural gas, as a green, combustible gas, has entered thousands of households and numerous enterprises and institutions through gas pipelines, where residents use it for boiling water and cooking. However, due to age or external impact, gas pipelines are prone to leakage, which can easily cause major explosions if not properly managed.

[0003] Furthermore, nowadays, various underground pipelines in cities are crisscrossed. Sometimes newly excavated pipelines will damage natural gas pipelines, and if natural gas pipelines lack detection and alarm systems, serious consequences will occur.

[0004] To sum up, the current natural gas pipelines are seriously aging and lack self-detection and intelligent management functions. Utility Model Content

[0005] The technical problem to be solved by the present invention is: in view of the drawbacks of the above-mentioned natural gas pipelines, a double-pipe gas pipeline intelligent management system is specially designed. The design idea is mainly to change the natural gas pipelines in densely populated urban areas from single pipes to double pipes; and equip them with an intelligent detection system.

[0006] The technical solution adopted by the present invention to solve its technical problems is a multi-pipe gas pipeline intelligent management system, which is characterized in that: the multi-pipe gas pipeline intelligent management system includes an inner pipe, an outer pipe, a gate valve chamber, an extension pipe, and an alarm system; the inner pipe is inserted into the outer pipe to form a multi-pipe gas pipeline, the gas flows in the inner pipe, and a cavity is formed between the inner pipe and the outer pipe; gate valve chambers are installed on the gas pipeline at intervals, and an electric-controlled gate valve is installed in the gate valve chamber; the outer pipe is connected to the gate valve chamber, and the inner pipe is connected to the electric-controlled gate valve; one end of the extension pipe is connected to the gate valve chamber or the outer pipe of the gas outlet, and the other end is led to the air, and an alarm system is installed on the outside of the extension pipe; the alarm system is electrically connected to the electric-controlled gate valve.

[0007] As described above, the gate valve chamber is not connected to the outer tube of the air supply end, but is connected to the outer tube of the air outlet end; thus, the gate valve chamber is connected to the clamping cavity of the air outlet end and is connected to the outside world through the extension tube.

[0008] As mentioned above, the gate valve chamber is divided into a power chamber and a valve body chamber. The power chamber is equipped with an electric device, and the valve body chamber is equipped with an electric-controlled gate valve body. The power chamber and the valve body chamber are sealed and isolated.

[0009] As mentioned above, for the extension pipe of the underground gas pipeline, one end is buried underground and the other end is extended from the ground to the air; for the extension pipe of the vertical main gas pipeline of the building, it is extended from the upper end of the outer pipe of the main gas pipeline; the upper end of the extension pipe is equipped with a rain cap.

[0010] As mentioned above, the alarm system is installed on the upper part of the extension tube, the gas sensing probe of the alarm system is placed inside the extension tube, and the alarm system is equipped with a buzzer and a flashing light; when the gas sensing probe senses that the gas density exceeds the standard, the buzzer of the alarm system will emit a harsh alarm sound, and the flashing light will also flash to alarm. At the same time, the alarm system will close the electric control gate valve in the gate valve chamber, cutting off the gas supply in the pipeline.

[0011] As mentioned above, the alarm system is interconnected with the remote control center of the gas management department through the Internet. When the alarm system sends out an audible and visual alarm, it also transmits the alarm signal to the control center. The management personnel of the control center will notify the emergency repair personnel through the location number of the alarm information and immediately rush to the scene for emergency repairs.

[0012] As mentioned above, the outer side of the outer pipe is covered with a sensing wire, which is electrically connected to the alarm system. Once the sensing wire is impacted by external force, it will transmit the impact signal to the alarm system. The alarm system will emit an audible and visual alarm and simultaneously transmit the signal to the control center. The management personnel will immediately dispatch emergency repair personnel to the site for inspection and stop drilling or excavation that may damage the gas pipeline.

[0013] As mentioned above, the double-pipe gas pipeline is introduced into the room, and a gas meter valve box is installed indoors; the gas meter valve box is equipped with a gas meter, a pre-meter shut-off valve and a post-meter electric shut-off valve; the inner pipe is connected to the pre-meter shut-off valve, the pre-meter shut-off valve is connected to the gas meter air inlet, the gas meter air outlet is connected to the post-meter electric shut-off valve, the post-meter electric shut-off valve is led out of the gas meter valve box through the gas pipe and connected to the gas stove; the gas meter valve box is connected to the outer pipe, the outer pipe is connected to the outer pipe of the main pipe; the electric shut-off valve is electrically connected to the indoor gas alarm; any leakage of the components in the gas meter valve box and the inner pipe will be introduced into the outer pipe of the outdoor main pipe through the outer pipe, and then dissipated into the air through the extension pipe of the main pipe, avoiding the accumulation of gas indoors and causing an explosion when encountering open flames.

[0014] As mentioned above, the original residential building gas pipeline is optimized and renovated in a double-pipe manner; the original residential building gas main pipeline is installed indoors, running from the first floor to the top floor. For this situation, a household-based renovation method is adopted to avoid the risk of gas leakage; first, an outer pipe is installed outside the main pipeline, and the upper part of the outer pipe is connected to an extension pipe, which is led out of the wall to the outside; an outer pipe is also installed on the branch pipeline to form a double-pipe gas pipeline, and a gas meter valve box is installed indoors; a gas meter, a pre-meter shut-off valve and a post-meter electric shut-off valve are installed in the gas meter valve box; the inner pipe of the branch pipeline is connected to the pre-meter shut-off valve, the pre-meter shut-off valve is connected to the gas meter air inlet, the gas meter air outlet is connected to the post-meter electric shut-off valve, and the post-meter electric shut-off valve is led out of the gas meter valve box and connected to the gas stove through the gas pipe; the gas meter valve box is connected to the outer pipe of the branch pipeline, and the outer pipe of the branch pipeline is connected to the outer pipe of the main pipeline; the electric shut-off valve is electrically connected to the indoor gas alarm; if the components and inner pipe in the gas meter valve box leak, they will be led out to the outside through the extension pipe and dissipated into the air, avoiding explosion caused by indoor accumulation and open flame.

[0015] As mentioned above, a gas sensing probe is installed in the gas meter valve box or inside the outer pipe of the indoor main pipeline, and the gas sensing probe is electrically connected to the indoor gas alarm; when the gas sensing probe senses that the gas in the gas meter valve box or inside the outer pipe of the main pipeline exceeds the standard, it will transmit the signal to the indoor gas alarm, and the indoor gas alarm will issue an audible and visual alarm, and actively cut off the electric shut-off valve behind the meter, and the householder will contact the gas maintenance personnel for inspection; if there is a gas leak in the indoor gas stove and accessories, the indoor gas alarm will sense that the gas exceeds the standard, and will also issue an audible and visual alarm and actively cut off the electric shut-off valve behind the meter; after the gas stove is used, close the stove valve, and at the same time close the electric shut-off valve behind the meter through the manual switch on the indoor gas alarm; when using the gas stove, first open the electric shut-off valve behind the meter through the manual switch on the indoor gas alarm, and then open the stove valve to ignite; in this way, the risk of explosion caused by gas leakage is fundamentally eliminated.

[0016] The beneficial effects of this utility model are: the utility model adopts a double-pipe design, which can effectively realize intelligent management of pipeline gas, timely and effectively block the explosion disaster caused by gas leakage; ensure the safety of the human living environment, and reduce the loss of life and property caused by gas leakage and subsequent explosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below with reference to the accompanying drawings.

[0018] Attachment Figure 1 It is a schematic diagram of the structure of the underground gas pipeline of the utility model.

[0019] Attachment Figure 2 It is a schematic diagram of the vertical gas pipeline structure of the utility model.

[0020] Attachment Figure 3It is a schematic diagram of the indoor gas pipeline structure of the utility model.

[0021] Attachment Figure 4 It is a schematic diagram of the structure of the old gas pipeline reconstruction of the utility model.

[0022] In the figure, 1 inner pipe 2 outer pipe 3 gate valve chamber 31 power chamber 32 valve body chamber 4 extension pipe 5 alarm system 6 gas meter valve box 61 gas meter 62 pre-meter shut-off valve 63 post-meter electric shut-off valve 7 gas alarm 8 gas stove 9 building 10 gas sensor probe. DETAILED DESCRIPTION

[0023] Now, in conjunction with the accompanying drawings, a preferred embodiment of the present utility model is described in detail.

[0024] like Figure 1 As shown, an implementation method of a multi-pipe gas pipeline intelligent management system in this embodiment is shown. The multi-pipe gas pipeline intelligent management system includes an inner pipe 1, an outer pipe 2, a gate valve chamber 3, an extension pipe 4, and an alarm system 5. The inner pipe 1 is inserted into the outer pipe 2 to form a multi-pipe gas pipeline. Gas flows through the inner pipe 1, forming a sandwich cavity between the inner pipe 1 and the outer pipe 2. Gate valve chambers 3 are installed on the gas pipeline at intervals, and an electrically controlled gate valve is installed in the gate valve chamber 3. The outer pipe 2 is connected to the gate valve chamber 3, and the inner pipe 1 is connected to the electrically controlled gate valve. One end of the extension pipe 4 is connected to the gate valve chamber 3 or the outer pipe 2 at the gas outlet, and the other end is directed into the air. The outer side of the extension pipe 4 is equipped with an alarm system 5. The alarm system 5 is electrically connected to the electrically controlled gate valve. The gate valve chamber 3 is not connected to the outer pipe 2 at the gas supply end, but is connected to the outer pipe 2 at the gas outlet end. In this way, the gate valve chamber 3 is connected to the sandwich cavity at the gas outlet end and is connected to the outside world through the extension pipe 4. The gate valve chamber 3 is divided into a power chamber 31 and a valve body chamber 32. The power chamber 31 houses the electric device, while the valve body 32 houses the electrically controlled gate valve body. The power chamber 31 and valve body 32 are sealed and isolated. For underground gas pipelines, the extension pipe 4 has one end buried underground and the other end extending out of the ground into the air. The top of the extension pipe 4 is fitted with a rain cap. An alarm system 5 is mounted on the top of the extension pipe 4. The gas sensor probe is located inside the extension pipe 4 and is equipped with a buzzer and flashing light.

[0025] In this embodiment, if a leak occurs in the inner tube 1 of the gas pipeline, the gas will not diffuse randomly but instead enter the cavity between the inner tube 1 and the outer tube 2. Pipeline gas is generally natural gas, which has a lower specific gravity than air and therefore rises. This gas is then directed into the air through the extension tube 4. Because there are no fire sources at high altitude, the natural gas escapes into the air and does not cause a fire. Simultaneously, when the gas sensor in the extension tube 4 detects that the gas density exceeds the specified value, the alarm system 5 will emit a piercing buzzer and flash a flashing alarm. Simultaneously, the alarm system 5 will close the electrically controlled gate valve in the gate valve chamber 3, cutting off the gas supply to the pipeline. The alarm system 5 is interconnected with the gas management department's remote control center via the internet. When the alarm system 5 issues an audible and visual alarm, it also transmits an alarm signal to the control center. The control center's management personnel will use the alarm location code to notify emergency repair personnel, who will immediately rush to the scene to carry out repairs. This maximizes the safe operation of the underground gas pipeline and enables intelligent management.

[0026] like Figure 2 The figure shows an implementation of an intelligent management system for vertical, multi-pipe gas pipelines in this embodiment. An extension pipe 4 extends from the upper end of the main vertical gas pipeline outer pipe 2 of a building. An alarm system 5 is installed on the upper portion of the extension pipe 4, and a rain cap is installed at the upper end. Each floor has a branch gas pipeline leading into the interior. A gate valve chamber 3 is located at the lower end of the vertical gas pipeline, housing an electrically controlled gate valve electrically connected to the alarm system 5. The multi-pipe gas pipeline is vertically mounted on the exterior wall of a building 9.

[0027] The alarm system 5 can also be installed at the lower part of the outer tube 2 of the gas pipeline. The gas sensing probe must be installed in the extension tube 4. The alarm system 5 is electrically connected to the gas sensing probe.

[0028] In this embodiment, if a leak occurs in the inner tube 1 of a vertical gas pipeline, gas enters the cavity between the inner tube 1 and the outer tube 2. The pipeline gas is typically natural gas, which has a lower specific gravity than air and therefore rises. This gas is then directed into the air through the extension tube 4. Because there are no fire sources at high altitude, the natural gas escapes into the air and does not cause a fire. Simultaneously, when the gas sensor in the extension tube 4 detects that the gas density exceeds the specified value, the alarm system 5 will emit a piercing buzzer and flash a flashing alarm. Simultaneously, the alarm system 5 closes the electrically controlled gate valve in the gate valve chamber 3, shutting off the gas supply to the pipeline. The alarm system 5 is interconnected with the gas management department's remote control center via the internet. When the alarm system issues an audible and visual alarm, it also transmits an alarm signal to the control center. The control center's management personnel, using the alarm location code, notify emergency repair personnel, who then rush to the scene to carry out repairs. This maximizes the safe operation of the underground gas pipeline and enables intelligent management.

[0029] like Figure 3 As shown, an indoor implementation of a vertical, double-piped gas pipeline intelligent management system according to this embodiment is shown. The double-piped gas pipeline is introduced indoors, and a gas meter valve box 6 is installed indoors. The gas meter valve box 6 houses a gas meter 61, a pre-meter shut-off valve 62, and a post-meter electric shut-off valve 63. The inner pipe 1 is connected to the pre-meter shut-off valve 62, which is connected to the gas inlet of the gas meter 61. The gas outlet of the gas meter 61 is connected to the post-meter electric shut-off valve 63. The post-meter electric shut-off valve 63 is connected to the gas pipe leading out of the gas meter valve box 6 and into a gas cooker 8. The gas meter valve box 6 is connected to the outer pipe 2, which is connected to the outer pipe of the main pipeline. The post-meter electric shut-off valve 63 is electrically connected to the indoor gas alarm 7.

[0030] In this embodiment, if leakage occurs in the components in the gas meter valve box 6 and the inner tube 1, the leakage will be discharged into the outer tube 2 of the outdoor main pipeline through the outer tube 2, and then dissipated into the air through the extension tube 4 of the main pipeline, thereby avoiding the accumulation of gas indoors and the explosion caused by open flames.

[0031] In this embodiment, if a gas leak occurs in the gas cooker 8 and its accessories, the indoor gas sensing probe 10 will transmit a signal to the indoor gas alarm 7, and the indoor gas alarm 7 will close the electric shut-off valve 63 after the meter to ensure indoor safety; furthermore, when the gas cooker 8 is finished using, the electric shut-off valve 63 after the meter can be closed by the manual switch on the indoor gas alarm 7, making the room safer.

[0032] like Figure 4 As shown, this embodiment is an implementation method for renovating old gas pipelines using a vertical double-pipe gas pipeline intelligent management system. Targeting the double-pipe optimization and transformation of the original residential building gas pipeline; the original residential building's gas main pipeline is installed indoors, running from the first floor to the top floor. For this situation, a household-based transformation method is adopted to avoid the risk of gas leakage; first, an outer pipe 2 is installed outside the main pipeline, and the upper part of the outer pipe 2 is connected to an extension pipe 4, which is led out of the wall; the branch pipeline is also equipped with an outer pipe 2 to form a double-pipe gas pipeline, and a gas meter valve box 6 is installed indoors; a gas meter 61, a pre-meter shut-off valve 62 and a post-meter electric shut-off valve 63 are installed in the gas meter valve box 6; the inner pipe 1 of the branch pipeline is connected to the pre-meter shut-off valve 62, the pre-meter shut-off valve 62 is connected to the air inlet of the gas meter 61, the air outlet of the gas meter 61 is connected to the post-meter electric shut-off valve 63, and the post-meter electric shut-off valve 63 is connected to the gas stove 8 through the gas pipe to the gas meter valve box 6; the gas meter valve box 6 is connected to the branch pipeline outer pipe 2, and the branch pipeline outer pipe 2 is connected to the outer pipe of the main pipeline; the post-meter electric shut-off valve 63 is electrically connected to the indoor gas alarm 7. A gas sensing probe 10 is provided inside the gas meter valve box 6 or inside the outer pipe of the indoor main pipeline, and the gas sensing probe 10 is electrically connected to the indoor gas alarm 7 .

[0033] In this embodiment, if a leak occurs in the components and inner tube 1 of the gas meter valve box 6, the gas will be discharged outdoors through the extension tube 4 and dissipated into the air, thus preventing the gas from accumulating indoors and exposing it to an open flame and causing an explosion. If the gas sensor probe 10 senses excessive gas in the gas meter valve box 6 or the outer tube 2 of the main pipeline, it will transmit a signal to the indoor gas alarm 7, which will then emit an audible and visual alarm and automatically shut off the electric shut-off valve 63 after the meter is removed. The householder will then contact the gas maintenance personnel for repair. If a gas leak occurs in the indoor gas stove 8 and its accessories, the indoor gas alarm 7 will also sense excessive gas and emit an audible and visual alarm and automatically shut off the electric shut-off valve 63 after the meter is removed. After the gas stove 8 is used, the stove valve is closed and the electric shut-off valve 63 after the meter is removed is closed by the manual switch on the indoor gas alarm 7. When the gas stove 8 is used, the electric shut-off valve 63 after the meter is removed is first opened by the manual switch on the indoor gas alarm 7 before the stove valve is opened for ignition. This fundamentally eliminates the risk of explosion caused by gas leaks.

[0034] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those skilled in the art may modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A multi-pipe gas pipeline intelligent management system, characterized by: An intelligent management system for a double-pipe gas pipeline includes an inner pipe, an outer pipe, a gate valve chamber, an extension pipe, and an alarm system; the inner pipe is inserted into the outer pipe to form a double-pipe gas pipeline, the gas circulates in the inner pipe, and a cavity is formed between the inner pipe and the outer pipe; gate valve chambers are installed on the gas pipeline at regular intervals, and an electrically controlled gate valve is installed in the gate valve chamber; the outer pipe is connected to the gate valve chamber, and the inner pipe is connected to the electrically controlled gate valve; one end of the extension pipe is connected to the outer pipe of the gate valve chamber or the gas outlet end, and the other end is led to the air, and an alarm system is installed on the outside of the extension pipe; the alarm system is electrically connected to the electrically controlled gate valve.

2. The multi-pipe gas pipeline intelligent management system according to claim 1, characterized in that: The gate valve chamber is not connected to the outer pipe of the air supply end, but is connected to the outer pipe of the air outlet end; thus, the gate valve chamber is connected to the air cavity of the air outlet end and is connected to the outside world through the extension pipe.

3. The multi-pipe gas pipeline intelligent management system according to claim 1 is characterized by: The gate valve chamber is divided into a power chamber and a valve body chamber. The power chamber is equipped with an electric device, and the valve body chamber is equipped with an electric-controlled gate valve body. The power chamber and the valve body chamber are sealed and isolated.

4. The multi-pipe gas pipeline intelligent management system according to claim 1, characterized in that: For the extension pipe of the underground gas pipeline, one end is buried underground and the other end is extended from the ground to the air; for the extension pipe of the vertical main gas pipeline of the building, it is extended from the upper end of the outer pipe of the main gas pipeline; the upper end of the extension pipe is equipped with a rain cap.

5. The multi-pipe gas pipeline intelligent management system according to claim 1 is characterized by: The alarm system is installed on the upper part of the extension tube, and the gas sensing probe of the alarm system is placed inside the extension tube. The alarm system is equipped with a buzzer and a flashing light. When the gas sensing probe senses that the gas density exceeds the standard, the buzzer of the alarm system will emit a harsh alarm sound, and the flashing light will also flash to alarm. At the same time, the alarm system will close the electric control gate valve in the gate valve chamber to cut off the gas supply in the pipeline.

6. The multi-pipe gas pipeline intelligent management system according to claim 1, characterized in that: The alarm system is interconnected with the remote control center of the gas management department through the Internet.

7. The multi-pipe gas pipeline intelligent management system according to claim 1, characterized in that: The outer side of the outer tube is covered with a sensing wire, and the sensing wire is electrically connected to the alarm system.

8. The multi-pipe gas pipeline intelligent management system according to claim 1, characterized in that: The double-pipe gas pipeline is introduced into the room, and a gas meter valve box is installed indoors; a gas meter, a pre-meter shut-off valve and a post-meter electric shut-off valve are installed in the gas meter valve box; the inner pipe is connected to the pre-meter shut-off valve, the pre-meter shut-off valve is connected to the gas meter air inlet, the gas meter air outlet is connected to the post-meter electric shut-off valve, the post-meter electric shut-off valve is led out of the gas meter valve box through the gas pipe and connected to the gas stove; the gas meter valve box is connected to the outer pipe, the outer pipe is connected to the outer pipe of the main pipeline; the electric shut-off valve is electrically connected to the indoor gas alarm.

9. The multi-pipe gas pipeline intelligent management system according to claim 1, characterized in that: An outer pipe is installed outside the main pipeline, and the upper part of the outer pipe is connected to an extension pipe, which is led outdoors through the wall; an outer pipe is installed outside the branch pipeline, and a gas meter valve box is fixed indoors; a gas meter, a pre-meter shut-off valve and a post-meter electric shut-off valve are fixed inside the gas meter valve box; the inner pipe of the branch pipeline is connected to the pre-meter shut-off valve, the pre-meter shut-off valve is connected to the gas meter air inlet, the gas meter air outlet is connected to the post-meter electric shut-off valve, and the post-meter electric shut-off valve is led out of the gas pipe to the gas meter valve box and connected to the gas stove; the gas meter valve box is connected to the outer pipe of the branch pipeline, and the outer pipe of the branch pipeline is connected to the outer pipe of the main pipeline; the electric shut-off valve is electrically connected to the indoor gas alarm.

10. The multi-pipe gas pipeline intelligent management system according to claim 9, characterized in that: A gas sensing probe is installed inside the gas meter valve box or inside the outer pipe of the indoor main pipeline, and the gas sensing probe is electrically connected to the indoor gas alarm.

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