Natural gas sampling and analysis connection vessel

Abstract

The utility model application relates to a kind of natural gas sampling analysis connecting container.It includes containing cylinder, pressure gauge and connecting mouth, containing cylinder cylinder wall has two installation ports, two pressure gauges are respectively installed on installation port, the connecting seat of two connecting mouths is detachably installed in containing cylinder end, connecting pipe is detachably installed on connecting seat, connecting seat has specific structure and is conveniently installed, connecting pipe one end has clamping interface and is matched with connecting seat, it is also provided with annular sealing ring and enhances sealing, in addition there is sealing end cover, fixed frame, part connecting pipe has connecting terminal for facilitating the connection of external equipment;Two pressure gauges can be monitored in real time the natural gas pressure in containing cylinder, it is convenient to master state gas pressure state, avoid pressure too big damage laboratory equipment, and the connecting container is arranged between laboratory equipment and natural gas field station, avoid the defect that traditional sampler needs repeatedly dismounting and docking, can continuously and continuously the natural gas with stable pressure is transported to laboratory equipment.

Description

Technical Field

[0001] This utility model relates to the field of natural gas storage technology, and in particular to a natural gas sampling and analysis connection container. Background Technology

[0002] At liquefied natural gas (LNG) storage facilities, natural gas samples need to be taken and tested to ensure the quality of the incoming LNG.

[0003] When sampling and testing natural gas, it is necessary to monitor the pressure of the natural gas first to avoid overpressure damage to the testing equipment. However, the existing testing equipment cannot directly read the pressure of natural gas. It is necessary to use a sampling cylinder to collect a portion of the natural gas first, and then install a pressure gauge to read the pressure of the sampling cylinder. When it is ensured that the gas pressure in the sampling cylinder will not damage the testing equipment, the pressure gauge is removed and the sampling cylinder is connected to the testing equipment. Finally, the testing is completed to ensure the quality of the liquefied natural gas entering the system.

[0004] However, the pressure of the sampling cylinders is unstable, and the connection between the sampling cylinders and other equipment needs to be repeatedly disassembled and reassembled, which poses a risk of leakage during the disassembly and reassembly process. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a natural gas sampling and analysis connection container that reduces the risk of gas leakage during the disassembly and assembly of natural gas sampling and testing, as well as the risk of damage to testing instruments due to excessive pressure.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A natural gas sampling and analysis connection container includes a receiving cylinder, a pressure gauge, and a connection nozzle, wherein... Two mounting openings are formed on the wall of the receiving cylinder. There are two pressure gauges, each installed on a separate mounting port. There are two connectors, each of which includes a connector seat and a connector tube. The connector seat is detachably mounted on the end of the receiving cylinder; the connector tube is detachably mounted on the connector seat. The connector includes a plug-in sleeve, a first connecting flange, a second connecting flange, and external snap fasteners. One end of the plug-in sleeve is operably inserted into the end of the receiving sleeve. The first connecting flange is fixedly installed on the plug-in sleeve, and the end face of the first connecting flange is operably abutting against the end face of the receiving sleeve. The second connecting flange is fixedly installed at the end of the plug-in sleeve. There are multiple external snap fasteners, which are fixedly arranged in a ring at equal intervals on the outer circumference of the second connecting flange, and the multiple external snap fasteners face the first connecting flange. Each connecting pipe has multiple locking interfaces at one end, and multiple external locking clips can be operably installed in the corresponding locking interfaces. The other end of one connecting pipe can be connected to the interface of the testing equipment, and the other end of another connecting pipe can be connected to the natural gas station pipeline.

[0007] Optionally, an annular positioning surface is formed on the inner side of the large end of the connecting pipe, with the annular positioning surface facing the second connecting flange, and an annular sealing ring is clamped and fixed between the second connecting flange and the annular positioning surface.

[0008] Optionally, the natural gas sampling and analysis connection container also includes a sealed end cap, which is detachably connected to the end face of the receiving cylinder.

[0009] Optionally, the natural gas sampling and analysis connection container also includes a fixing frame, which includes a fixing plate and a fixing ring. Two fixing holes are formed on the fixing plate, the receiving cylinder is disposed on the fixing plate, and the fixing ring is wound around the receiving cylinder with its two ends respectively installed in the two fixing holes.

[0010] Optionally, the connector also includes a connector terminal. Each connector tube is tapered, with the end of each connector tube that connects to the connector seat being the large end and the other end of each connector tube being the small end. The small end of the connector tube has an internal thread. One end of the connector terminal is screwed into the small end of the connector tube, and the other end of the connector terminal is used for adaptive connection to external devices.

[0011] Compared with the prior art, the present invention has the following beneficial effects: The natural gas sampling and analysis connection container of this application can be connected to the interface of the testing equipment and the pipeline of the natural gas station through two connection nozzles. During use, two pressure gauges can monitor the pressure of the natural gas in the container in real time, making it easy to monitor the gas pressure status and avoid damage to the testing equipment due to excessive pressure. Furthermore, the connection container is located between the testing equipment and the natural gas station, avoiding the defects of traditional samplers that require repeated disassembly and reassembly, and can continuously deliver stable pressure natural gas to the testing equipment. Moreover, the connection nozzle's connecting seat and connecting pipe are detachable and installable, and multiple external clips can be operably installed in corresponding multiple snap-fit ​​interfaces. The snap-fit ​​structure allows for quick disassembly and assembly of the connection nozzle, and the shape of the connection nozzle can be changed and replaced to adapt to different testing equipment. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0013] Figure 1 This is a perspective view of the natural gas sampling and analysis connection container of this utility model; Figure 2 This is a perspective view of the connector of this utility model; Figure 3 This is a side view of the connector of this utility model; Figure 4 This is a perspective view of the connector of this utility model.

[0014] In the diagram: 1. Receiving cylinder; 2. Pressure gauge; 3. Connecting nozzle; 4. Mounting port; 5. Connecting seat; 6. Connecting pipe; 7. Insert sleeve; 8. First connecting flange; 9. Second connecting flange; 10. Outer end buckle; 11. Clip interface; 12. Annular positioning surface; 13. Annular sealing ring; 14. Sealing end cap; 15. Fixing bracket; 16. Fixing plate; 17. Fixing ring; 18. Connecting terminal. Detailed Implementation

[0015] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0016] Example 1

[0017] Combination Figures 1-4 As shown in the figure, an embodiment of this utility model discloses a natural gas sampling and analysis connection container, including a receiving cylinder 1, a pressure gauge 2, a connecting nozzle 3, a sealing end cap 14, and a fixing frame 15. The receiving cylinder 1 is connected to the pressure gauge 2 via the mounting port 4, enabling real-time monitoring of the internal natural gas pressure; the connecting nozzle 3 is detachably installed at the end of the receiving cylinder 1, and the connecting pipe 6 is detachable from the connecting seat 5, facilitating connection to different equipment; the sealing end cap 14 is detachably connected to the receiving cylinder 1, providing a sealing function; and the fixing frame 15 provides fixed support for the receiving cylinder 1.

[0018] This natural gas sampling and analysis connection container achieves stable measurement of natural gas pressure, reduces the number of equipment disassemblies and reassemblies, and lowers the risk of leakage. Dual pressure gauges 2 provide real-time monitoring, ensuring more accurate and reliable pressure data. The detachable connection design facilitates flexible connection to different equipment, the sealing end cap 14 enhances sealing, and the mounting bracket 15 guarantees the stability of the entire container.

[0019] Specifically, the container cylinder 1 has two mounting ports 4 formed on its wall. The container cylinder 1 is typically made of metal and is generally cylindrical in shape, which allows it to withstand internal gas pressure well. Of course, in some special cases, other shapes such as square cylinders can be used instead. The metal container cylinder 1 has high strength and corrosion resistance, ensuring normal use under high pressure, while the cylindrical shape conforms to mechanical principles, evenly distributing internal gas pressure and improving the stability and safety of the container cylinder 1.

[0020] There are two pressure gauges 2, each installed on one of the two mounting ports 4. Pressure gauges 2 can be pointer-type, displaying the pressure value visually through pointer rotation. Their working principle utilizes an elastic sensitive element that deforms under pressure, which in turn drives the pointer to rotate via a transmission mechanism. Alternatively, they can be digital pressure gauges 2, displaying the pressure directly in digital form, offering advantages such as accurate readings and strong anti-interference capabilities. Pressure gauges 2 are installed on the mounting ports 4 with a sealed connection to prevent natural gas leakage. The dual pressure gauge setup allows for real-time and accurate monitoring of the natural gas pressure inside the container 1. By comparing the values ​​from the two gauges 2, pressure anomalies can be detected promptly, improving the reliability of pressure monitoring. Different types of pressure gauges 2 can meet the needs of different users, while the sealed connection effectively prevents natural gas leakage and ensures operator safety.

[0021] There are two connectors 3, each including a connector seat 5 and a connector pipe 6. The connector seat 5 is detachably installed at the end of the receiving cylinder 1; the connector pipe 6 is detachably installed on the connector seat 5. This detachable design allows the connectors 3 to be flexibly connected to different equipment. When different testing equipment or natural gas station pipelines need to be connected, only the corresponding connector pipe 6 needs to be replaced, reducing the number of times the equipment needs to be disassembled and reassembled, reducing the risk of gas leakage, and also improving the versatility and applicability of the equipment.

[0022] Specifically, the connecting seat 5 in this embodiment includes a plug-in cylinder 7, a first connecting flange 8, a second connecting flange 9, and external snap fasteners 10. The plug-in cylinder 7 is generally a cylindrical structure made of metal, with one end operably inserted into the end of the receiving cylinder 1, allowing natural gas to flow smoothly between the two. The first connecting flange 8 is fixedly installed on the plug-in cylinder 7, and its end face operably abuts against the end face of the receiving cylinder 1, serving a positioning and sealing function. The second connecting flange 9 is fixedly installed at the end of the plug-in cylinder 7. There are multiple external snap fasteners 10, which are fixedly arranged in a ring at equal intervals on the outer circumference of the second connecting flange 9, and the multiple external snap fasteners 10 face the first connecting flange 8. The external snap fasteners 10 can be elastic snap fasteners, made of a metal material with a certain degree of elasticity, to facilitate installation and disassembly with the snap-fit ​​interface 11 on the connecting pipe 6. The first connecting flange 8 and the second connecting flange 9 enhance the sealing and stability between the connecting seat 5 and the receiving cylinder 1. The elastic design of the outer end buckle 10 makes the installation and disassembly of the connecting pipe 6 and the connecting seat 5 more convenient and quick, thus improving installation efficiency.

[0023] Each connecting pipe 6 has multiple locking interfaces 11 at one end, and multiple external locking clips 10 are operably installed in the corresponding locking interfaces 11. The connecting pipe 6 can be made of metal or high-strength plastic to ensure its strength and corrosion resistance. The other end of one connecting pipe 6 can be connected to a laboratory equipment interface, and the other end of another connecting pipe 6 can be connected to a natural gas station pipeline. Through the cooperation of the external locking clips 10 and the locking interfaces 11, the connecting pipe 6 can be securely installed on the connecting seat 5 while also being easy to disassemble. The use of metal or high-strength plastic pipes ensures the strength and corrosion resistance of the connecting pipe 6, extends its service life, and ensures the safe transportation of natural gas.

[0024] An annular locating surface 12 is formed on the inner side of the large end of the connecting pipe 6, facing the second connecting flange 9. An annular sealing ring 13 is clamped and fixed between the second connecting flange 9 and the annular locating surface 12. The annular sealing ring 13 can be made of rubber, which has good elasticity and sealing performance, and can effectively prevent natural gas from leaking from the connection between the connecting seat 5 and the connecting pipe 6. The setting of the annular locating surface 12 and the annular sealing ring 13 further enhances the sealing between the connecting seat 5 and the connecting pipe 6, prevents natural gas leakage, and ensures the accuracy and safety of natural gas sampling and analysis.

[0025] The sealing end cap 14 is detachably connected to the end face of the receiving cylinder 1. The sealing end cap 14 can be connected to the receiving cylinder 1 by means of threaded connection or snap-fit ​​connection. The detachable sealing end cap 14 facilitates the cleaning and maintenance of the receiving cylinder 1, and at the same time, it can prevent impurities from entering when not in use, keep the inside of the receiving cylinder 1 clean, and extend the service life of the equipment.

[0026] The fixing frame 15 includes a fixing plate 16 and a fixing ring 17. The fixing plate 16 has two fixing holes. The receiving cylinder 1 is mounted on the fixing plate 16, and the fixing ring 17 is wound around the receiving cylinder 1, with its two ends respectively installed in the two fixing holes. The fixing plate 16 is generally a metal or plastic plate, possessing a certain strength and stability. The fixing ring 17 can be a steel strip or chain, etc., which, by being wound around the receiving cylinder 1 and fixed in the fixing holes of the fixing plate 16, firmly fixes the receiving cylinder 1 to the fixing plate 16, preventing the receiving cylinder 1 from shaking or shifting. The fixing frame 15 ensures the stability of the receiving cylinder 1, preventing loosening of the connection due to shaking or shifting during use, thereby reducing the risk of air leakage and improving the reliability and safety of the entire connection container.

[0027] The implementation principle of this embodiment is as follows: The natural gas sampling and analysis connection container of this embodiment, by setting dual pressure gauges 2, can accurately monitor the pressure of natural gas in the container 1 in real time, avoiding the risks caused by unstable pressure and repeated disassembly and reassembly of the equipment. The detachable connection nozzle 3 design facilitates connection with different equipment, improving the flexibility of use. The annular sealing ring 13 enhances the sealing performance of the connection part, and the sealing end cap 14 further ensures the sealing and cleanliness of the container 1. The fixing frame 15 ensures the stability of the entire connection container, improves the reliability and service life of the equipment, and represents a significant improvement and enhancement compared to the prior art.

[0028] Furthermore, the connector 3 in this embodiment also includes a connector terminal 18. Each connector tube 6 is tapered, with the end of each connector tube 6 connected to the connector seat 5 being the larger end and the other end of each connector tube 6 being the smaller end. The smaller end of the connector tube 6 has an internal thread. One end of the connector terminal 18 is screwed onto the smaller end of the connector tube 6, and the other end of the connector terminal 18 is used for adaptive connection to external devices. The connector terminal 18 can be a connector of different specifications or types to adapt to the interface requirements of different external devices. For example, some special laboratory equipment may require a specific model of connector terminal 18 for connection.

[0029] The implementation principle of this embodiment is as follows: Adding a connecting terminal 18 allows the connecting pipe 6 to better connect with different external devices, improving the versatility and applicability of the entire connecting container. Installing the connecting terminal 18 via a threaded connection facilitates the replacement of different types of connecting terminals 18, further enhancing the flexibility of the equipment and representing a further improvement in connection compatibility compared to existing technologies. The design of the connecting terminal 18 allows the connecting pipe 6 to better connect with external devices of different specifications and types, improving the versatility and applicability of the entire connecting container. Installing the connecting terminal 18 via a threaded connection facilitates the replacement of different types of connecting terminals 18, further enhancing the flexibility of the equipment and meeting the needs of more diverse users.

[0030] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application 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. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0031] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A natural gas sampling and analysis connection container, characterized in that: Includes a container, a pressure gauge, and a connecting nozzle, among which Two mounting openings are formed on the wall of the receiving cylinder; There are two pressure gauges, and the two pressure gauges are respectively installed on the two mounting ports; There are two connecting nozzles, each of which includes a connecting seat and a connecting tube. The connecting seat is detachably mounted on the end of the receiving cylinder, and the connecting tube is detachably mounted on the connecting seat. The connector includes a plug-in tube, a first connecting flange, a second connecting flange, and external snap fasteners. One end of the plug-in tube is operably inserted into the end of the receiving tube. The first connecting flange is fixedly installed on the plug-in tube, and the end face of the first connecting flange is operably abutting against the end face of the receiving tube. The second connecting flange is fixedly installed on the end of the plug-in tube. There are multiple external snap fasteners, which are fixedly arranged in a ring at equal intervals on the outer circumference of the second connecting flange, and the multiple external snap fasteners face the first connecting flange. Each of the connecting pipes has multiple card interfaces at one end, and multiple external end clips are operably installed in the corresponding multiple card interfaces. The other end of one connecting pipe can be connected to the interface of a laboratory device, and the other end of another connecting pipe can be connected to a natural gas station pipeline.

2. The natural gas sampling and analysis connection container as described in claim 1, characterized in that: An annular positioning surface is formed on the inner side of the large end of the connecting pipe, and the annular positioning surface faces the second connecting flange. An annular sealing ring is clamped and fixed between the second connecting flange and the annular positioning surface.

3. The natural gas sampling and analysis connection container as described in claim 1, characterized in that: It also includes a sealing end cap, which is detachably connected to the end face of the receiving cylinder.

4. The natural gas sampling and analysis connection container as described in claim 1, characterized in that: It also includes a fixing frame, which includes a fixing plate and a fixing ring. The fixing plate has two fixing holes. The receiving cylinder is disposed on the fixing plate. The fixing ring is wound around the receiving cylinder and its two ends are respectively installed in the two fixing holes.

5. The natural gas sampling and analysis connection container as described in claim 2, characterized in that: The connector also includes a connector terminal. Each connector tube is conical. The end of each connector tube that connects to the connector seat is a large end, and the other end of each connector tube is a small end. The small end of the connector tube has an internal thread. One end of the connector terminal is screwed into the small end of the connector tube, and the other end of the connector terminal is used for adaptive connection to external devices.

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