An improved device for a chemical instrument

Abstract

The utility model provides a kind of structure improvement's device of chemical instrument belongs to chemical instrument technical field. Including being arranged on the air pipe of the main part of chemical instrument pressure relief pipe, one end of pressure relief pipe is pressure relief port, and annular plate is equipped on the outer wall of pressure relief port, annular plate is slidably arranged with mounting plate along the axial direction of pressure relief pipe, and mounting plate is equipped with the plugging element for the movable plugging pressure relief pipe, annular plate is equipped with the elastic element for urging mounting plate to move close to pressure relief pipe and make plugging element pass into the inside of pressure relief pipe. With the effect of improving the working safety of chemical instrument.

Description

Technical Field

[0001] This utility model relates to the field of chemical instrumentation technology, and in particular to a device for structural improvement of chemical instruments. Background Technology

[0002] Chemical instrumentation refers to equipment used in chemical engineering and process industries to measure, control, and record various process parameters in chemical production processes, including instruments for measuring pressure, temperature, flow rate, and other related parameters.

[0003] In gas-related equipment, pressure gauges are typically used to measure air pressure. Traditional pressure gauges consist of a base and a gauge body mounted on the base. The gauge body has an air tube, and the base has an air port for connecting to the air tube. The base is installed on the air pressure measuring section of the equipment's pipeline, and the air port is connected to the inside of the pipeline to measure air pressure. However, during equipment use, blockages inside the pipeline can cause excessive air pressure. When the air pressure exceeds the gauge's range, the gauge body may burst under pressure, posing a safety hazard. Utility Model Content

[0004] In view of the above problems, this utility model provides a device for structural improvement of chemical instrumentation.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A device for improving the structure of a chemical instrument is provided, including a pressure relief pipe installed on the gas pipe of the main body of the chemical instrument. One end of the pressure relief pipe is a pressure relief port, and an annular plate is provided on the outer wall of the pressure relief port. An mounting plate is slidably installed on the annular plate along the axial direction of the pressure relief pipe. A sealing element for movably sealing the pressure relief pipe is provided on the mounting plate. An elastic element for driving the mounting plate to move closer to the pressure relief pipe and for the sealing element to penetrate into the inner side of the pressure relief pipe is provided on the annular plate.

[0006] Furthermore, the elastic element includes multiple springs, and the mounting plate is provided with multiple guide rods parallel to the moving direction of the mounting plate. The multiple guide rods move through the annular plate and are connected to the abutment block. The multiple springs are respectively sleeved on each guide rod, and the two ends of the springs are respectively connected to the abutment block and the annular plate.

[0007] Furthermore, the sealing component includes a screw and a sealing ring. One end of the screw is a smooth section that is movably inserted into the inside of the pressure relief pipe. The sealing ring is embedded in the outer wall of the smooth section and presses against the inner wall of the pressure relief pipe. The other end of the screw is a threaded section, which is threadedly connected to the mounting plate to adjust the depth of the smooth section inserted into the pressure relief pipe.

[0008] Furthermore, the outer edge of the sealing ring on the side away from the mounting plate has a chamfer.

[0009] Furthermore, it also includes a protective shell set on the base of the chemical instrument body. The protective shell has an installation cavity for accommodating the chemical instrument body. An installation port is opened on one side of the protective shell, and a cover plate is provided at the installation port. The cover plate is provided with tempered glass for observing the reading of the chemical instrument body. A notch is opened on the side wall of the protective shell on the side of the installation port for the pressure relief pipe to pass through.

[0010] Furthermore, the cover plate is linearly slidably disposed inside the mounting opening, and a groove for the cover plate to be inserted and fitted is provided on the inner wall of the protective shell near the base. A magnetic block for magnetic connection with the cover plate is embedded in the inner wall of the groove, and a through hole for the cover plate to pass through is provided on the inner wall of the protective shell away from the base.

[0011] The beneficial effects of this utility model are as follows: the elastic force of the elastic element allows the mounting plate to move closer to the pressure relief pipe, ensuring that the sealing element seals the inside of the pressure relief pipe; when the equipment's pipeline is pressure tested, the air pressure drives the sealing element to move closer to the pressure relief port and overcomes the elastic force of the elastic element; when the air pressure is too high and exceeds the range of the chemical instrument, the sealing element is pushed out of the pressure relief port by the air pressure, thus achieving the purpose of pressure relief, preventing the main body of the chemical instrument from being over-pressurized and bursting, and improving the working safety of the chemical instrument. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a device for structural improvement of a chemical instrument, according to an embodiment of this application.

[0013] Figure 2 This is a schematic diagram of the structure of a chemical instrumentation device according to an embodiment of this application, from another perspective.

[0014] Figure 3 This is a cross-sectional structural schematic diagram of the pressure relief pipe, annular plate, and mounting plate of a device for structural improvement of a chemical instrument according to an embodiment of this application.

[0015] The components include: 1. Chemical instrument body; 11. Gas pipe; 12. Base; 2. Pressure relief pipe; 21. Annular plate; 3. Mounting plate; 31. Guide rod; 32. Abutment block; 4. Sealing component; 41. Screw; 42. Sealing ring; 421. Chamfer; 5. Elastic component; 51. Spring; 6. Protective shell; 61. Notch; 62. Groove; 63. Through hole; 7. Cover plate; 71. Tempered glass; 8. Magnetic block. Detailed Implementation

[0016] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0017] This application discloses an apparatus for structural improvement of chemical instrumentation, referring to... Figure 1 , Figure 2 and Figure 3 The instrument includes a pressure relief pipe 2 installed on the gas pipe 11 of the main body 1 of the chemical instrument. One end of the pressure relief pipe 2 is a pressure relief port, and an annular plate 21 is welded to the outer wall of the pressure relief port. A mounting plate 3 is slidably mounted on the annular plate 21 along the axial direction of the pressure relief pipe 2. A sealing element 4 for movable sealing of the pressure relief pipe 2 is provided on the mounting plate 3. An elastic element 5 is provided on the annular plate 21 for driving the mounting plate 3 to move closer to the pressure relief pipe 2 and for the sealing element 4 to penetrate into the inner side of the pressure relief pipe 2.

[0018] In this embodiment, the main body 1 of the chemical instrument is bolted to the measuring port of the equipment pipeline via the base 12. The elastic force of the elastic element 5 allows the mounting plate 3 to move closer to the pressure relief pipe 2, ensuring that the sealing element 4 seals the inner side of the pressure relief pipe 2. When pressure is measured on the equipment pipeline, the air pressure drives the sealing element 4 to move closer to the pressure relief port and overcome the elastic force of the elastic element 5. When the air pressure exceeds the range of the chemical instrument, the sealing element 4 is pushed out of the pressure relief port by the air pressure, thus achieving the purpose of pressure relief. This prevents the main body 1 of the chemical instrument from bursting due to excessive pressure, thereby improving the operational safety of the chemical instrument.

[0019] Specifically, the elastic element 5 includes multiple springs 51, and multiple guide rods 31 parallel to the moving direction of the mounting plate 3 are welded on the mounting plate 3. The multiple guide rods 31 move through the annular plate 21 and are threadedly connected to the abutment block 32. The multiple springs 51 are respectively sleeved on each guide rod 31, and the two ends of the springs 51 are respectively connected to the abutment block 32 and the annular plate 21.

[0020] In this embodiment, the two ends of the spring 51 abut against the abutment block 32 and the annular plate 21 respectively, which can drive the mounting plate 3 to move and approach the pressure relief pipe 2. When selecting the spring 51, the length and material of the spring 51 should be considered to ensure that during the air pressure measurement process, the elastic force of the spring 51 can keep the sealing member 4 in the pressure relief pipe 2 within the air pressure range of the chemical instrument, and when the measured air pressure exceeds the range, the air pressure in the equipment pipeline can overcome the elastic force and push the sealing member 4 out of the pressure relief port.

[0021] Specifically, the sealing component 4 includes a screw 41 and a sealing ring 42. One section of the screw 41 is a smooth section that is movably inserted into the inner side of the pressure relief pipe 2. The sealing ring 42 is embedded in the outer wall of the smooth section and presses against the inner wall of the pressure relief pipe 2. The other section of the screw 41 is a threaded section, which is threadedly connected to the mounting plate 3 to adjust the depth of the smooth section inserted into the pressure relief pipe 2.

[0022] In this embodiment, chemical instruments with different pressure ratings have different ranges, and therefore different maximum pressure-bearing capacities. The deeper the sealing ring 42 is within the pressure relief pipe 2, the greater the compression of the spring 51 when the sealing ring 42 moves out of the pressure relief port. Consequently, the required air pressure for the sealing ring 42 to move out of the pressure relief port is also greater. Depending on the pressure rating of the chemical instrument used, rotating the screw 41 adjusts the depth of the sealing ring 42 within the pressure relief pipe 2, thereby adjusting the pressure relief capacity of the sealing component 4. This allows the device to be applied to chemical instruments with various pressure ratings.

[0023] In this embodiment, the sealing ring 42 is made of rubber.

[0024] To facilitate the insertion of the sealing ring 42 into the inner side of the pressure relief pipe 2, the outer edge of the sealing ring 42 away from the mounting plate 3 is chamfered 421.

[0025] Furthermore, it also includes a protective shell 6 bolted to the base 12 of the chemical instrument body 1. The protective shell 6 has an installation cavity for accommodating the chemical instrument body 1. An installation port is provided on one side of the protective shell 6, and a cover plate 7 is provided at the installation port. The cover plate 7 is provided with tempered glass 71 for observing the reading of the chemical instrument body 1. A notch 61 for the pressure relief pipe 2 to pass through is provided on the side wall of the protective shell 6 on the side of the installation port.

[0026] In large factories and projects, numerous pieces of equipment are used, and the pressure-bearing capacity of chemical instruments with different pressure specifications varies. When some employees rotate the screw 41 and adjust the depth of the sealing ring 42 inside the pressure relief pipe 2, the sealing ring 42 may become too deep, preventing effective pressure relief. In this embodiment, the chemical instrument body 1 is housed within the protective casing 6. Even if the chemical instrument body 1 bursts due to misoperation, the fragments can be confined within the protective casing 6, further improving the safety of the chemical instrument body 1 during pressure measurement.

[0027] Specifically, the cover plate 7 is linearly slidably disposed inside the mounting opening. The inner wall of the protective shell 6 near the base 12 is provided with a groove 62 for the cover plate 7 to be inserted and fitted. A magnetic block 8 for magnetic connection with the cover plate 7 is embedded in the inner wall of the groove 62. A through hole 63 for the cover plate 7 to pass through is provided on the inner wall of the protective shell 6 away from the base 12.

[0028] In this embodiment, by sliding the cover plate 7 to expose the mounting cavity, the protective shell 6 can be installed on the base 12, allowing the chemical instrument body 1 to enter the mounting cavity. Then, by sliding the cover plate 7 to close the mounting opening, the chemical instrument body 1 can be confined inside the protective shell 6.

[0029] The implementation principle of the device for structural improvement of a chemical instrument according to an embodiment of this application is as follows: Through the elastic force of the elastic element 5, the mounting plate 3 can be moved closer to the pressure relief pipe 2, ensuring that the sealing element 4 seals the inner side of the pressure relief pipe 2. When pressure is measured on the equipment's pipeline, the air pressure drives the sealing element 4 to move closer to the pressure relief port and overcome the elastic force of the elastic element 5. When the air pressure is too high and exceeds the range of the chemical instrument, the sealing element 4 is pushed out of the pressure relief port by the air pressure, thus achieving the purpose of pressure relief. This can prevent the main body 1 of the chemical instrument from bursting due to excessive pressure, and has the effect of improving the working safety of the chemical instrument.

[0030] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and modifications.

Claims

1. A device for structural improvement of chemical instrumentation, characterized in that: It includes a pressure relief pipe (2) installed on the gas pipe (11) of the chemical instrument body (1). One end of the pressure relief pipe (2) is a pressure relief port, and an annular plate (21) is provided on the outer wall of the pressure relief port. An mounting plate (3) is slidably provided on the annular plate (21) along the axial direction of the pressure relief pipe (2). A sealing element (4) for movably sealing the pressure relief pipe (2) is provided on the mounting plate (3). An elastic element (5) is provided on the annular plate (21) for driving the mounting plate (3) to move closer to the pressure relief pipe (2) and for the sealing element (4) to penetrate into the inner side of the pressure relief pipe (2).

2. The device for structural improvement of chemical instrumentation according to claim 1, characterized in that: The elastic element (5) includes multiple springs (51). The mounting plate (3) is provided with multiple guide rods (31) parallel to the moving direction of the mounting plate (3). The multiple guide rods (31) move through the annular plate (21) and are connected to the abutment block (32). The multiple springs (51) are respectively sleeved on each guide rod (31), and the two ends of the springs (51) are respectively connected to the abutment block (32) and the annular plate (21).

3. The device for structural improvement of a chemical instrument according to claim 2, characterized in that: The sealing component (4) includes a screw (41) and a sealing ring (42). One section of the screw (41) is a smooth section that is movably inserted into the inside of the pressure relief pipe (2). The sealing ring (42) is embedded in the outer wall of the smooth section and presses against the inner wall of the pressure relief pipe (2). The other section of the screw (41) is a threaded section and is threadedly connected to the mounting plate (3) to adjust the depth of the sealing ring (42) inserted into the pressure relief pipe (2).

4. The device for structural improvement of a chemical instrument according to claim 3, characterized in that: The outer edge of the sealing ring (42) away from the mounting plate (3) has a chamfer (421).

5. The device for structural improvement of a chemical instrument according to claim 1, characterized in that: It also includes a protective shell (6) set on the base (12) of the chemical instrument body (1). The protective shell (6) has an installation cavity for accommodating the chemical instrument body (1). An installation port is opened on one side of the protective shell (6), and a cover plate (7) is provided at the installation port. The cover plate (7) is provided with tempered glass (71) for observing the reading of the chemical instrument body (1). A notch (61) for the pressure relief pipe (2) to pass through is opened on the side wall of the protective shell (6) on the side of the installation port.

6. The device for structural improvement of a chemical instrument according to claim 5, characterized in that: The cover plate (7) is linearly slidably disposed inside the mounting opening. The inner wall of the protective shell (6) near the base (12) is provided with a groove (62) for the cover plate (7) to be inserted and fitted. A magnetic block (8) for magnetic connection with the cover plate (7) is embedded in the inner wall of the groove (62). A through hole (63) for the cover plate (7) to pass through is provided on the inner wall of the protective shell (6) away from the base (12).

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