Vehicle-mounted box-type liquefied natural gas gasification emergency gas supply device

Abstract

The utility model discloses a kind of vehicle-mounted box type liquefied natural gas gasification emergency gas supply devices, it is related to liquefied natural gas application technical field, including box, horizontal storage container, air temperature type gasifier, pressure regulator, control module, monitoring display instrument, detection mechanism;Horizontal storage container is located in box, air temperature type gasifier is located at the top of box;Horizontal storage container is connected with gas phase pipeline and liquid phase pipeline, gas phase pipeline and liquid phase pipeline are connected gas supply main pipeline again, air temperature type gasifier, pressure regulator are sequentially assembled on gas supply main pipeline along material flow direction;Detection mechanism for detecting pipeline temperature, pipeline pressure, fuel leakage and fuel weight is provided in box, detection mechanism is electrically connected with control module, control module is electrically connected with monitoring display instrument.The utility model box is placed on the cargo box of vehicle, and its bottom is provided with walking wheel, can be conveniently transported and shifts, by vehicle rapid deployment to the scene, realize in shorter time recovery gas supply.

Description

Technical Field

[0001] This utility model relates to the field of liquefied natural gas application technology, and more specifically to a vehicle-mounted box-type liquefied natural gas gasification emergency gas supply device. Background Technology

[0002] Natural gas has become a primary energy source for residential production and daily life, making its development and utilization particularly important. During the gas supply process, supply interruptions may occur due to natural disasters, equipment failures or scheduled maintenance, human factors, and external interference. Conventional handling methods are time-consuming and may disrupt normal living and production needs. Therefore, transporting liquefied natural gas (LNG) by truck to supply points, and then using processes such as gasification and pressure regulation to deliver it to consumption points, is an economical and feasible solution.

[0003] However, natural gas is an explosive medium, and its transmission and distribution equipment has high safety performance requirements. Therefore, there is an urgent need for a vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device that integrates functions such as intelligent detection, safety interlocking, storage, vaporization, and pressure regulation, and can be quickly deployed to the site by motorized transport vehicles to restore gas supply in a short period of time. Utility Model Content

[0004] In order to overcome the defects in the existing technology, this utility model discloses a vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device, which integrates functions such as intelligent detection, safety interlock, storage vaporization and pressure regulation, and can be quickly deployed to the site by motor transport vehicles to restore gas supply in a short time.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device includes a box body, a horizontal storage container, an ambient temperature vaporizer, a pressure regulator, a control module, a monitoring and display instrument, a detection mechanism, and a valve mechanism; The box is placed on the cargo box of the vehicle and is equipped with wheels at the bottom. The horizontal storage container is located inside the box, and the ambient temperature vaporizer is located on the top of the box. The horizontal storage container is connected to a gas phase pipeline and a liquid phase pipeline, which are then connected to a main gas supply pipeline. The ambient temperature vaporizer and a pressure regulator are sequentially installed on the main gas supply pipeline along the material flow direction. The housing is equipped with a detection mechanism for detecting pipeline temperature, pipeline pressure, fuel leakage, and fuel weight. The detection mechanism is electrically connected to the control module, and the control module is electrically connected to the monitoring and display instrument. The valve mechanism is installed on the gas phase pipeline, liquid phase pipeline, and main gas supply pipeline and is electrically connected to the control module.

[0006] Preferably, the enclosure is a rectangular box structure, the horizontal storage container is placed horizontally inside the rectangular box structure, the side and front of the enclosure are respectively provided with a side door and a front door, the pressure regulator, detection mechanism and valve mechanism are arranged inside the enclosure inside the front door, and the monitoring display instrument is arranged on the outer wall of the enclosure above the front door.

[0007] Preferably, the monitoring and display instrument includes a level gauge, a pressure gauge before pressure adjustment, and a pressure gauge after pressure adjustment.

[0008] Preferably, the testing organization includes: Temperature transmitters installed on the pipelines before and after the ambient air vaporizer. Pressure transmitters installed on the pipelines before and after the pressure regulator; A combustible gas detector assembled inside a housing for detecting natural gas leaks; A weighbridge assembled inside a box for weighing horizontal storage containers.

[0009] Preferably, the valve mechanism includes an emergency shut-off valve mounted on the liquid phase pipeline, the emergency shut-off valve being interlocked with the temperature transmitter, pressure transmitter and combustible gas detector.

[0010] Preferably, the liquid phase pipeline and the main gas supply pipeline before and after the pressure regulator are all connected to a vent pipe, and a flame arrester is installed on the vent pipe.

[0011] Preferably, the detection mechanism further includes a level transmitter for detecting the liquid level in the horizontal storage container, the level transmitter being inserted into the horizontal storage container and electrically connected to the control module.

[0012] Preferably, both the side door and the front door of the enclosure are equipped with access control systems, which are electrically connected to the control module, and the control module is connected to an alarm.

[0013] Preferably, the gas phase pipe is inserted to the top of the interior of the horizontal storage container, the liquid phase pipe is inserted to the bottom of the interior of the horizontal storage container, and a feeding pipe is installed on the horizontal storage container, which is inserted to the top of the interior of the horizontal storage container.

[0014] Preferably, the voltage regulator is electrically connected to the control module, the control module is connected to the terminal device via a wireless module, and the horizontal storage container is a Dewar flask.

[0015] The beneficial effects of this utility model are: The vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device provided by this utility model has a box placed on the cargo box of a vehicle and is equipped with wheels at the bottom for easy transportation and transfer. It can be quickly deployed to the site by vehicle to restore gas supply in a short time.

[0016] This utility model provides a vehicle-mounted box-type liquefied natural gas (LNG) vaporization emergency gas supply device. It employs a horizontal vehicle-mounted storage container, resulting in a low center of gravity, excellent vehicle stability, high space utilization, good integration with the vehicle, superior management of liquids subjected to impact and sloshing, and good road passability. Furthermore, it utilizes an ambient air vaporizer, which uses ambient air as a heat source for heat exchange, completing LNG vaporization without additional energy consumption. The ambient air vaporizer is located at the top of the container, ensuring good airflow and facilitating heat exchange with the air for LNG vaporization.

[0017] This utility model provides a vehicle-mounted box-type liquefied natural gas (LNG) vaporization emergency gas supply device. A horizontal storage container holds LNG, which enters an ambient air vaporizer from the main gas supply pipeline. The vaporizer vaporizes the LNG, and after vaporization, the pressure is regulated by a pressure regulator before being supplied to the point of use. A detection mechanism monitors pipeline temperature, pipeline pressure, fuel leakage, and fuel weight. Based on the data detected by the detection mechanism, the control module controls the monitoring and display instruments to display relevant data and controls the valve mechanism to open and close.

[0018] The vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device provided by this utility model integrates functions such as storage, vaporization, pressure regulation, overpressure cut-off, overpressure venting, pressure monitoring, temperature monitoring, fuel weighing, leakage monitoring, intrusion alarm, wireless signal transmission, and safety interlock. It features small size, multiple functions, and convenient transportation and transfer. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device of this utility model; Figure 2 This is a three-dimensional model drawing of the vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device of this utility model; Figure label: 1. Housing; 11. Wheels; 2. Horizontal storage container; 3. Ambient air vaporizer; 4. Pressure regulator; 5. Control module; 6. Monitoring and display instrument; 61. Level gauge; 62. Pressure gauge before pressure regulation; 63. Pressure gauge after pressure regulation; 7. Detection mechanism; 71. Temperature transmitter; 72. Pressure transmitter; 73. Combustible gas detector; 74. Weighbridge; 75. Level transmitter; 8. Valve mechanism; 81. Emergency shut-off valve; 91. Gas phase pipeline; 92. Liquid phase pipeline; 93. Main gas supply pipeline; 94. Feeding pipe. Detailed Implementation

[0020] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model.

[0021] A vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device, such as Figure 1 and Figure 2 As shown, it includes a housing 1, a horizontal storage container 2, an ambient temperature vaporizer 3, a pressure regulator 4, a control module 5, a monitoring and display instrument 6, a detection mechanism 7, and a valve mechanism 8; The container 1 is placed on the cargo box of the vehicle and is equipped with wheels 11 at the bottom. The horizontal storage container 2 is located inside the container 1, and the ambient temperature vaporizer 3 is located on the top of the container 1. The horizontal storage container 2 is connected to a gas phase pipe 91 and a liquid phase pipe 92. The gas phase pipe 91 and the liquid phase pipe 92 are then connected to a main gas supply pipe 93. The ambient temperature vaporizer 3 and the pressure regulator 4 are sequentially installed on the main gas supply pipe 93 along the material flow direction. The housing 1 is equipped with a detection mechanism 7 for detecting pipeline temperature, pipeline pressure, fuel leakage and fuel weight. The detection mechanism 7 is electrically connected to the control module 5, and the control module 5 is electrically connected to the monitoring and display instrument 6. The valve mechanism 8 is installed on the gas phase pipeline 91, the liquid phase pipeline 92 and the main gas supply pipeline 93 and is electrically connected to the control module 5.

[0022] In this embodiment, the horizontal storage container 2 is used to store liquefied natural gas; the ambient air vaporizer 3 is used to vaporize the liquefied natural gas, specifically a K-type finned vaporizer; the pressure regulator 4 is used to regulate the pressure of the vaporized natural gas before delivering it to the point of use. The detection mechanism 7 is used to detect pipeline temperature, pipeline pressure, fuel leakage, and fuel weight, and sends the detection information to the control module 5. The control module 5 controls the opening and closing of the corresponding valves of the valve mechanism 8, and controls the monitoring and display instrument 6 to display the corresponding detection information.

[0023] In this embodiment, the vehicle-mounted box-type liquefied natural gas (LNG) regasification emergency gas supply device adopts a horizontal box structure, which significantly reduces the floor space required compared to conventional "gasification stations" or "cylinder stations" (by approximately 85%). No on-site construction is required; it can be used immediately after hoisting into place, making it convenient and quick.

[0024] In the pipeline, the gas phase pipeline 91 is used for the flow of gas phase materials, and the liquid phase pipeline 92 is used for the flow of liquid phase materials. The gas phase material flow and the liquid phase material flow are combined and then transported to the main gas supply pipeline 93. After being vaporized by the ambient temperature vaporizer 3 and regulated by the pressure regulator 4, it is finally transported to the gas consumption point.

[0025] like Figure 2As shown, the enclosure 1 has a rectangular box structure, and the horizontal storage container 2 is placed horizontally inside the rectangular box structure. The enclosure 1 has a side door and a front door, respectively. Inside the enclosure 1 through the front door, a pressure regulator 4, a detection mechanism 7, and a valve mechanism 8 are arranged. Opening the front door allows for management and maintenance of the pressure regulator 4, detection mechanism 7, and valve mechanism 8. A monitoring display instrument 6 is arranged on the outer wall of the enclosure 1 above the front door for observing monitoring data. Additionally, opening the side door allows for management and maintenance of the side of the horizontal storage container 2. It should be noted that... Figure 2 The side-opening and front-opening door structures are concealed to allow for viewing of their internal structure.

[0026] like Figure 2 As shown, the monitoring and display instrument 6 includes a level gauge 61, a pressure gauge before pressure regulation 62, and a pressure gauge after pressure regulation 63, which are used to display the liquid level of the horizontal storage container 2, the pipeline pressure before pressure regulation by the pressure regulator 4, and the pipeline pressure after pressure regulation by the pressure regulator 4, respectively.

[0027] like Figure 1 As shown, testing organization 7 includes: Temperature transmitters 71 are installed on the pipelines before and after the ambient air vaporizer 3. Pressure transmitters 72 are installed on the pipelines before and after the pressure regulator 4. The pressure data of the pressure transmitters 72 is displayed using pressure gauges 62 before and after the pressure regulator. A combustible gas detector 73 is installed inside housing 1 for detecting natural gas leaks; A weighbridge 74, installed inside housing 1, for weighing horizontal storage containers 2.

[0028] The valve mechanism 8 includes an emergency shut-off valve 81 mounted on the liquid phase pipeline 92, which is interlocked with the temperature transmitter 71, the pressure transmitter 72 and the combustible gas detector 73.

[0029] In this embodiment, temperature transmitter 71 is used to detect the temperature inside the pipeline before and after vaporization by ambient air vaporizer 3; pressure transmitter 72 is used to detect the pressure inside the pipeline before and after pressure regulation by pressure regulator 4; combustible gas detector 73 is used to detect the concentration of natural gas inside the tank to determine whether there is a natural gas leak; weighbridge 74 is used to detect the weight of horizontal storage container 2 to determine the weight of fuel. The detected temperature data, pressure data, and natural gas concentration data are sent to control module 5. Control module 5 makes judgments based on the detection information. When an abnormality is detected, it controls emergency shut-off valve 81 to close the pipeline and stop delivery, realizing interlock control, and then manual follow-up inspection is performed.

[0030] like Figure 1As shown, both the liquid phase pipeline 92 and the main gas supply pipeline 93 before and after the pressure regulator 4 are connected to vent pipes, and flame arresters are installed on the vent pipes. That is... Figure 1 A1 and B1 are both vent pipes. The vent pipes are then connected to the main vent pipe, and a flame arrester is installed on the main vent pipe to prevent the venting from being ignited.

[0031] like Figure 1 As shown, the detection mechanism 7 also includes a level transmitter 75 for detecting the liquid level in the horizontal storage container 2. The level transmitter 75 is inserted into the horizontal storage container 2 and electrically connected to the control module 5. The level transmitter 75 is used to detect the liquid level in the horizontal storage container 2 and displays it using the level gauge 61.

[0032] like Figure 1 As shown, both the side door and the front door of the enclosure 1 are equipped with access control systems. The access control systems are electrically connected to the control module 5, which is connected to an alarm. The access control systems are used to open or close the side door and the front door. When a door is opened illegally, the control module 5 activates the alarm.

[0033] like Figure 1 As shown, the gas phase pipe 91 is inserted into the top of the horizontal storage container 2, the liquid phase pipe 92 is inserted into the bottom of the horizontal storage container 2, and a feeding pipe 94 is installed on the horizontal storage container 2. The feeding pipe 94 is inserted into the top of the horizontal storage container 2 for feeding.

[0034] In this embodiment, the pressure regulator 4 is electrically connected to the control module 5, and the control module 5 communicates with the terminal device via a wireless module. The horizontal storage container 2 is a Dewar flask. The terminal device can be a mobile phone, tablet, computer, or other terminal device, which can remotely view the status of the vehicle-mounted box-type liquefied natural gas regasification emergency gas supply device.

[0035] In this embodiment, the ambient air vaporizer 3, pressure regulator 4, control module 5, monitoring and display instrument 6, temperature transmitter 71, pressure transmitter 72, combustible gas detector 73, weighbridge 74, level transmitter 75, access control, alarm, etc. can all be conventional structures in the prior art. Related products can be purchased in the existing market and then assembled into the device of this utility model.

[0036] To better understand this utility model, the working principle of this utility model will be described in detail below: When adding liquefied natural gas, the liquefied natural gas is injected into the horizontal storage container 2 through the feed pipe 94 for storage.

[0037] During gas supply, the liquefied natural gas stored in the horizontal storage container 2 enters the ambient temperature vaporizer 3 through the liquid phase pipeline 92 and the main gas supply pipeline 93 for vaporization. The vaporized natural gas then enters the pressure regulator 4 for pressure regulation, and finally the pressure-regulated natural gas is delivered to the gas consumption point.

[0038] This vehicle-mounted box-type liquefied natural gas (LNG) vaporization emergency gas supply device integrates functions such as storage, vaporization, pressure regulation, overpressure cutoff, overpressure venting, pressure monitoring, temperature monitoring, fuel weighing, leakage monitoring, intrusion alarm, wireless signal transmission, and safety interlocking, as detailed below: Storage: Horizontal storage container 2 stores liquefied natural gas.

[0039] Gasification: The ambient temperature gasifier 3 gasifies liquefied natural gas.

[0040] Pressure regulation: Pressure regulator 4 regulates the pressure of the gasified natural gas.

[0041] Overpressure cut-off: When the pressure transmitter 72 detects overpressure, the control module 5 controls the emergency shut-off valve 81 to close the pipeline and stop the delivery to the subsequent pipeline.

[0042] Overpressure relief: When the pressure transmitter 72 detects overpressure, it controls the valve on the vent pipe to open and release pressure.

[0043] Pressure monitoring: Pressure transmitter 72 monitors pipeline pressure.

[0044] Temperature monitoring: Temperature transmitter 71 monitors pipeline temperature.

[0045] Fuel weighing: The horizontal storage container 2 is weighed using a weighbridge 74 to obtain the weight of the fuel inside.

[0046] Leakage monitoring: Combustible gas detector 73 monitors for natural gas leaks.

[0047] Intrusion alarm: The access control system monitors the door opening and closing status, and triggers the alarm when an unauthorized access is detected.

[0048] Wireless signal transmission: Control module 5 communicates with the terminal device via a wireless module.

[0049] Safety interlock: Temperature transmitter 71, pressure transmitter 72 and combustible gas detector 73 are interlocked with emergency shut-off valve 81. When an abnormality is detected, control module 5 controls emergency shut-off valve 81 to close the pipeline.

[0050] The embodiments of this utility model have been described in detail above, but this utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalents or substitutions are all included within the scope defined by the claims of this utility model.

Claims

1. A vehicle-mounted box-type liquefied natural gas (LNG) vaporization emergency gas supply device, characterized in that, It includes a housing (1), a horizontal storage container (2), an ambient temperature vaporizer (3), a pressure regulator (4), a control module (5), a monitoring and display instrument (6), a detection mechanism (7), and a valve mechanism (8); The box (1) is placed on the cargo box of the vehicle and is equipped with wheels (11) at the bottom. The horizontal storage container (2) is located inside the box (1) and the air-temperature vaporizer (3) is located on the top of the box (1). The horizontal storage container (2) is connected to a gas phase pipe (91) and a liquid phase pipe (92). The gas phase pipe (91) and the liquid phase pipe (92) are then connected to a main gas supply pipe (93). The air-temperature vaporizer (3) and the pressure regulator (4) are sequentially installed on the main gas supply pipe (93) along the material flow direction. The housing (1) is equipped with a detection mechanism (7) for detecting pipeline temperature, pipeline pressure, fuel leakage and fuel weight. The detection mechanism (7) is electrically connected to the control module (5). The control module (5) is electrically connected to the monitoring and display instrument (6). The valve mechanism (8) is installed on the gas phase pipeline (91), the liquid phase pipeline (92) and the main gas supply pipeline (93) and is electrically connected to the control module (5).

2. The vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device as described in claim 1, characterized in that, The box (1) has a rectangular box structure. The horizontal storage container (2) is placed horizontally inside the rectangular box structure. The side and front of the box (1) are respectively provided with a side door and a front door. The pressure regulator (4), the detection mechanism (7) and the valve mechanism (8) are arranged inside the box (1) inside the front door. The monitoring and display instrument (6) is arranged on the outer wall of the box (1) above the front door.

3. The vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device as described in claim 1, characterized in that, The monitoring and display instrument (6) includes a level gauge (61), a pressure gauge before pressure adjustment (62), and a pressure gauge after pressure adjustment (63).

4. The vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device as described in claim 1, characterized in that, The testing organization (7) includes: Temperature transmitters (71) are installed on the pipelines before and after the ambient air vaporizer (3). Pressure transmitters (72) are installed on the pipelines before and after the pressure regulator (4). A combustible gas detector (73) is installed inside the housing (1) for detecting natural gas leaks. A weighbridge (74) assembled inside a box (1) for weighing horizontal storage containers (2).

5. The vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device as described in claim 4, characterized in that, The valve mechanism (8) includes an emergency shut-off valve (81) mounted on the liquid phase pipeline (92), which is interlocked with the temperature transmitter (71), the pressure transmitter (72) and the combustible gas detector (73).

6. The vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device as described in claim 1, characterized in that, The liquid phase pipeline (92) and the main gas supply pipeline (93) before and after the pressure regulator (4) are all connected to vent pipes, and flame arresters are installed on the vent pipes.

7. The vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device as described in claim 1, characterized in that, The detection mechanism (7) also includes a level transmitter (75) for detecting the liquid level of the horizontal storage container (2), the level transmitter (75) being inserted into the horizontal storage container (2) and electrically connected to the control module (5).

8. The vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device as described in claim 2, characterized in that, Access control is installed on both the side door and the front door of the enclosure (1). The access control is electrically connected to the control module (5). The control module (5) is connected to an alarm.

9. The vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device as described in claim 1, characterized in that, The gas phase pipe (91) is inserted into the top of the horizontal storage container (2), the liquid phase pipe (92) is inserted into the bottom of the horizontal storage container (2), and a feeding pipe (94) is installed on the horizontal storage container (2), which is inserted into the top of the horizontal storage container (2).

10. The vehicle-mounted box-type liquefied natural gas vaporization emergency gas supply device as described in claim 1, characterized in that, The voltage regulator (4) is electrically connected to the control module (5), and the control module (5) is connected to the terminal device via a wireless module. The horizontal storage container (2) is a Dewar flask.

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