Airtight gas sampler for petrochemical device

Abstract

The utility model belongs to the technical field of samplers, and particularly relates to a petrochemical device gas closed sampler which comprises a box body, a sampling assembly is arranged on the box body, a detection assembly is arranged on the sampling assembly, the sampling assembly comprises a connecting pipe, one end of the connecting pipe is communicated with the box body, and the other end of the connecting pipe is communicated with the detection assembly. The connecting pipe is symmetrically sleeved with two sealing rings, sealing rubber rings are arranged on the annular inner sides of the sealing rings, sealing gaskets are installed on the inner sides of the sealing rings, a first annular shell and a second annular shell are arranged in the sealing rings, a cavity is formed between the first annular shell and the second annular shell, and a steel cylinder is installed at the other ends of the sealing rings; an air cylinder is mounted on the first annular shell, a baffle is mounted in the air cylinder, a piston plate is arranged on the baffle, and a spring is arranged on the piston plate, so that after the connector is connected with a pipeline, the connector can be monitored, and a worker can be reminded of air leakage of the connector in time.

Description

Technical Field

[0001] This utility model belongs to the field of sampler technology, specifically a gas-sealed sampler for petrochemical plants. Background Technology

[0002] Petrochemical plants, also known as petrochemical plants, are equipment used to convert petroleum and other carbon-based raw materials into various chemicals and materials. During their operation, some toxic gases are generated. In order to study and treat these gases, a petrochemical plant gas closed sampler is needed.

[0003] Existing gas closed samplers for petrochemical plants are sampling devices used in the petroleum, chemical and other fields. They are mainly used for leak-free sampling of various media under process conditions in pipelines. They typically include a housing, control panel, sampling cylinder, glass bottle, quick connector, pressure gauge, valve, flange, seals, and joints. The sampling bottle is connected to the container of the substance to be sampled, and the inlet valve is opened to allow the inside of the sampling bottle to come into contact with and fully mix with the air or liquid in the container to achieve the sampling purpose.

[0004] Current gas closed-loop samplers for petrochemical plants typically cannot monitor the joints when connecting pipelines to containers, leading to undetected gas leaks. Therefore, a new gas closed-loop sampler for petrochemical plants is proposed to address this issue. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and address the problems of existing equipment, this utility model proposes a gas-sealed sampler for petrochemical plants.

[0006] The technical solution adopted by this utility model to solve its technical problem is a gas closed sampler for petrochemical plants, including a housing. The housing is equipped with a sampling component and a detection component. The sampling component includes a connecting pipe. One end of the connecting pipe is connected to the housing. Two sealing rings are symmetrically fitted on the connecting pipe. A sealing rubber ring is provided on the inner side of the sealing ring, and a sealing gasket is installed on the inner side of the sealing ring. A first annular shell and a second annular shell are provided inside the sealing ring. A cavity is provided between the first annular shell and the second annular shell. The other end of the sealing ring is connected to a steel cylinder through the connecting pipe, thus achieving the purpose of sampling the gas.

[0007] Preferably, an air cylinder is installed on the first annular shell, a baffle is installed inside the air cylinder, a piston plate is provided on the baffle, a spring is provided on the piston plate, and an air outlet pipe is installed on the side wall of the air cylinder, which together achieves the corresponding detection component.

[0008] Preferably, the sealing rubber ring is located between the connecting pipe and the inner wall of the sealing ring, the first annular shell and the second annular shell can be combined and connected, and an air inlet valve is installed on the connecting pipe, so that the gas cylinder can be sealed after installation.

[0009] Preferably, the detection component includes a housing, in which fixed blocks are symmetrically installed, and a coil is disposed between the fixed blocks. A rotating rod is disposed on the side of the housing, and a magnetic strip is installed at one end of the rotating rod, with the magnetic strip located inside the coil. A rotating plate is installed at the other end of the rotating rod, which together enable the detection of gas leaks.

[0010] Preferably, a bearing is provided at the point where the rotating rod passes through the housing, a transmission module is installed on the side of the housing, a transmission antenna is provided on the transmission module, and the transmission module is connected to the coil through a signal line to achieve the output of a leakage signal.

[0011] Preferably, an upper plate is installed on the outer side of the opening of the first annular shell, and a lower plate is installed on the outer side of the opening of the second annular shell. The upper plate is located directly above the lower plate, and a sealing strip is provided between the upper plate and the lower plate. A threaded hole is opened on the upper plate and penetrates the lower plate, and a connecting bolt is installed in the threaded hole. A pressure gauge and a temperature gauge are provided on the box body, and an inlet valve and an outlet valve are respectively installed on the two side walls of the box body, which together achieve the purpose of storing the original medium gas.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model, by setting an inlet valve, initially introduces the gas medium into the housing through the inlet valve. First, the first and second annular shells are opened, and the gas cylinder is installed. After installation, the first and second annular shells are connected and sealed. By opening the inlet valve, the gas medium enters the gas cylinder through the connecting pipe. During this process, if gas leaks out, it will push the baffle to rise, and the gas will flow out from the outlet pipe, pushing the rotating plate to rotate. The rotating plate will drive the rotating rod to rotate, thereby causing the magnetic strip to rotate in the coil. This cuts the magnetic field lines to generate current, which is transmitted to the transmission module along the signal line, enabling the antenna box to receive the transmitted signal. This achieves the purpose of detecting gas leaks.

[0014] 2. This utility model, by setting a sealing strip, when the gas cylinder is connected to the sealing ring, the upper and lower plates squeeze the sealing strip from opposite directions, so that the gas cylinder and the sealing ring can be tightly connected. In addition, a connecting bolt is set to better connect the first annular shell and the second annular shell, which can improve the internal sealing conditions. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the first overall three-dimensional structure;

[0017] Figure 2 This is a schematic diagram of the sampling component installation structure;

[0018] Figure 3 This is a cross-sectional view of the sampling component;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the detection component;

[0020] Figure 5 This is a schematic diagram of the installation structure of the upper and lower plates;

[0021] Legend:

[0022] In the diagram: 1. Box body; 11. Sealing ring; 12. First annular shell; 13. Second annular shell; 14. Connecting pipe; 15. Gas cylinder; 16. Sealing rubber ring; 17. Sealing gasket; 18. Inlet valve; 2. Shell; 21. Coil; 22. Magnetic strip; 23. Rotating plate; 24. Air cylinder; 25. Spring; 26. Baffle; 27. Air outlet pipe; 3. Upper plate; 31. Lower plate; 32. Sealing strip; 33. Connecting bolt; 34. Pressure gauge; 35. Temperature gauge. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5 As shown, a gas sealed sampler for a petrochemical plant includes a housing 1. The housing 1 is equipped with a sampling component and a detection component. The sampling component includes a connecting pipe 14. One end of the connecting pipe 14 is connected to the housing 1. Two sealing rings 11 are symmetrically fitted on the connecting pipe 14. A sealing rubber ring 16 is provided on the inner side of the annular ring of the sealing ring 11, and a sealing gasket 17 is installed on the inner side of the sealing ring 11. A first annular shell 12 and a second annular shell 13 are provided inside the sealing ring 11. A cavity is provided between the first annular shell 12 and the second annular shell 13. The other end of the sealing ring 11 is connected to a gas cylinder 15 through the connecting pipe.

[0025] In operation, existing gas sealed samplers for petrochemical plants typically cannot monitor the joints when connecting pipelines to containers, leading to undetected leaks. This invention addresses this by installing an inlet valve. Initially, the gas medium is introduced into the housing 1 through the inlet valve. The first annular shell 12 and the second annular shell 13 are opened, and the gas cylinder 15 is installed. After installation, the first annular shell 12 and the second annular shell 13 are connected and sealed. By opening the inlet valve 18, the gas medium enters the gas cylinder 15 through the connecting pipe 14. During this process, if gas leaks out, it pushes the baffle 26 upward, and the gas flows out from the outlet pipe 27, causing the rotating plate 23 to rotate. The rotating plate 23 drives the rotating rod to rotate, causing the magnetic strip 22 to rotate within the coil 21. This cuts the magnetic lines of force, generating current. The current is transmitted along the signal line to the transmission module, causing the antenna to transmit a signal to the receiving device, thus achieving the purpose of detecting gas leaks.

[0026] An air cylinder 24 is mounted on the first annular shell 12. A baffle 26 is installed inside the air cylinder 24. A piston plate is provided on the baffle 26, and a spring 25 is provided on the piston plate. An air outlet pipe 27 is installed on the side wall of the air cylinder 24. A sealing rubber ring 16 is located between the inner wall of the connecting pipe 14 and the sealing ring 11. The first annular shell 12 and the second annular shell 13 can be combined and connected. An air inlet valve 18 is installed on the connecting pipe 14. The detection assembly includes a housing 2. Fixing blocks are symmetrically installed inside the housing 2. A coil 21 is arranged between the fixing blocks. A rotating rod is provided on the side of the housing 2. A magnetic strip 22 is installed at one end of the rotating rod, and the magnetic strip 22 is located inside the coil 21. The other end of the rotating rod... A rotating plate 23 is installed at the end. A bearing is provided at the point where the rotating rod passes through the housing 2. A transmission module is installed on the side of the housing 2. A transmission antenna is provided on the transmission module. The transmission module is connected to the coil 21 through a signal line. An upper plate 3 is installed on the outside of the side opening of the first annular housing 12. A lower plate 31 is installed on the outside of the side opening of the second annular housing 13. The upper plate 3 is located directly above the lower plate 31. A sealing strip 32 is provided between the upper plate 3 and the lower plate 31. A threaded hole is opened on the upper plate 3 and passes through the lower plate 31. A connecting bolt 33 passes through the threaded hole. A pressure gauge 34 and a temperature gauge 35 are provided on the housing 1. An inlet valve and an outlet valve are respectively installed on the two side walls of the housing 1.

[0027] In operation, existing gas sealing samplers for petrochemical plants typically cannot monitor the joints when connecting pipelines to container bottles, leading to undetected leaks. In this solution, a sealing strip 32 is installed. When the gas cylinder 15 is connected to the sealing ring 11, the upper plate 3 and the lower plate 31 press against the sealing strip 32, ensuring a tight connection between the gas cylinder 15 and the sealing ring 11. Furthermore, connecting bolts 33 are provided to better connect the first annular shell 12 and the second annular shell 13, resulting in better internal sealing conditions.

[0028] Working Principle: Existing gas sealed samplers for petrochemical plants typically cannot monitor the joints when connecting pipelines to containers, leading to undetected leaks. In this solution, the present invention uses an inlet valve. Initially, the gas medium is introduced into the housing 1 through the inlet valve. The first annular shell 12 and the second annular shell 13 are opened, and the gas cylinder 15 is installed. After installation, the first annular shell 12 and the second annular shell 13 are connected and sealed. By opening the inlet valve 18, the gas medium enters the gas cylinder 15 through the connecting pipe 14. During this process, if gas leaks out, it will push the baffle 26 to rise, and the gas will flow out from the outlet pipe 27, pushing the rotating plate 23 to rotate. The rotating plate 23 will drive the rotating rod to rotate, thereby causing the magnetic strip 22 to rotate within the coil 21. This cuts the magnetic lines of force to generate current, which is transmitted along the signal line to the transmission module, causing the antenna to transmit a signal to the receiving device, thus achieving the purpose of detecting gas leaks.

[0029] An existing gas sealing sampler for petrochemical plants typically cannot monitor the joints when connecting pipelines to containers, leading to undetected leaks. In this solution, a sealing strip 32 is installed. When the cylinder 15 is connected to the sealing ring 11, the upper plate 3 and the lower plate 31 press against the sealing strip 32, ensuring a tight connection between the cylinder 15 and the sealing ring 11. Furthermore, connecting bolts 33 are provided to better connect the first annular shell 12 and the second annular shell 13, resulting in better internal sealing conditions.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A gas-sealed sampler for a petrochemical plant, characterized in that: The device includes a housing (1), on which a sampling component and a detection component are provided. The sampling component includes a connecting pipe (14), one end of which is connected to the housing (1). Two sealing rings (11) are symmetrically fitted on the connecting pipe (14). A sealing rubber ring (16) is provided on the inner side of the sealing ring (11), and a sealing gasket (17) is installed on the inner side of the sealing ring (11). A first annular shell (12) and a second annular shell (13) are provided inside the sealing ring (11). A cavity is provided between the first annular shell (12) and the second annular shell (13). The other end of the sealing ring (11) is connected to a steel cylinder (15) through the connecting pipe.

2. The gas-sealed sampler for a petrochemical plant according to claim 1, characterized in that: An air cylinder (24) is installed on the first annular shell (12), a baffle (26) is installed inside the air cylinder (24), a piston plate is provided on the baffle (26), a spring (25) is provided on the piston plate, and an air outlet pipe (27) is installed on the side wall of the air cylinder (24).

3. The gas-sealed sampler for a petrochemical plant according to claim 2, characterized in that: The sealing rubber ring (16) is located between the inner wall of the connecting pipe (14) and the sealing ring (11). The first annular shell (12) and the second annular shell (13) can be combined and connected. An air intake valve (18) is installed on the connecting pipe (14).

4. The gas-sealed sampler for a petrochemical plant according to claim 3, characterized in that: The detection assembly includes a housing (2), in which fixed blocks are symmetrically installed, and coils (21) are arranged between the fixed blocks. A rotating rod is arranged on the side of the housing (2), and a magnetic strip (22) is installed at one end of the rotating rod and the magnetic strip (22) is located inside the coil (21). A rotating plate (23) is installed at the other end of the rotating rod.

5. A gas-sealed sampler for a petrochemical plant according to claim 4, characterized in that: A bearing is provided at the point where the rotating rod passes through the housing (2). A transmission module is installed on the side of the housing (2). A transmission antenna is provided on the transmission module. The transmission module is connected to the coil (21) through a signal line.

6. The gas-sealed sampler for a petrochemical plant according to claim 5, characterized in that: An upper plate (3) is installed on the outer side of the side opening of the first annular shell (12), and a lower plate (31) is installed on the outer side of the side opening of the second annular shell (13). The upper plate (3) is located directly above the lower plate (31). A sealing strip (32) is provided between the upper plate (3) and the lower plate (31). A threaded hole is opened on the upper plate (3) and passes through the lower plate (31). A connecting bolt (33) passes through the threaded hole. A pressure gauge (34) and a temperature gauge (35) are provided on the box body (1). An inlet valve and an outlet valve are respectively installed on the two side walls of the box body (1).

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