A meter head purging device

Abstract

This utility model relates to the field of purging device technology and discloses an instrument head purging device, including: a protective component; and a gas guiding component, wherein the gas guiding component is disposed on one side of the protective component. Through the setting of the filter component, the gas exiting the reactor is first filtered through the filter cartridge and filter cover in the filter component. The filter cover, with its mesh structure, initially intercepts larger particulate impurities, while the filter cotton inside the filter cartridge further adsorbs finer impurities. After the various impurities in the gas are removed through double filtration, it is then conveyed to the interior of the connector through the connecting component, allowing the connector to purge and clean the instrument head. This effectively prevents impurities in the reactor from entering the connecting component and instrument through the pipeline, avoiding problems such as pipeline blockage and instrument malfunction caused by impurity accumulation, ensuring the accuracy and stability of instrument measurements, and reducing equipment maintenance frequency and safety hazards.

Description

Technical Field

[0001] This utility model relates to the field of purging device technology, specifically a purging device for an instrument head. Background Technology

[0002] During the operation of a polypropylene production unit, the propylene gas in the reactor often needs to be drawn out through the vent of the local pressure gauge as the purging gas source for the reactor instrument heads. Its core function is to use the continuous flushing of the airflow to prevent fine powder generated in the reactor from entering and clogging the instrument pressure lines, thereby ensuring the accuracy and stability of the instrument measurements.

[0003] However, the propylene gas drawn from the reactor often contains various impurities. In addition to the fine solid powder generated during the process, it may also contain unreacted raw material residues, trace amounts of liquid condensate, and rust particles that have detached from the inner wall of the pipeline. These impurities, after entering the subsequent pipeline system with the purge gas flow, will gradually deposit and accumulate on the inner wall of the pipeline.

[0004] Long-term operation will not only lead to a reduction in the inner diameter of the pipe, increasing airflow resistance and reducing the purging effect; more seriously, when impurities accumulate to a certain extent, they may directly block the pressure-injecting pipeline or instrument interface, causing instrument measurement failure and affecting the accurate monitoring of reactor operating parameters. This will not only interfere with normal production regulation, but may also cause production safety hazards due to parameter misjudgment. At the same time, it will increase the frequency and difficulty of equipment maintenance and increase production costs.

[0005] Therefore, a meter head purging device is proposed. Utility Model Content

[0006] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0007] In view of the problems in the prior art where impurities in propylene gas cause pipeline blockage and affect instrument measurement, the present invention aims to provide an instrument head purging device to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An instrument head purging device, comprising:

[0010] The device includes a protective component, an air guiding component, a connecting component, a connector, a filter component, and a pressure measuring component. The air guiding component is located on one side of the protective component, the connecting component is located on the other side of the protective component, the connector is located at the output end of the connecting component, the filter component is located on the inner side of the protective component and is situated between the output end of the air guiding component and the input end of the connecting component, and the pressure measuring component is located on the front side of the connecting component.

[0011] As a further embodiment of this utility model: the protective component includes a cabinet body, a door body, and an observation window, wherein the door body is rotatably connected to the front of the cabinet body, and the observation window is fixedly installed on the front of the door body.

[0012] As a further embodiment of this utility model: the filter assembly includes a housing, a first valve, a second valve, a top cover, a filter hood, a filter cartridge, and a collection frame. The bottom of the housing is fixedly installed on the bottom of the inner side of the cabinet body. The first valve is fixedly installed on the bottom of one side of the housing. The second valve is fixedly installed on the top of the other side of the housing. The top cover is threadedly connected to the inside of the top of the housing. The filter hood is fixedly installed on the bottom of the top cover. The filter cartridge is fixedly installed on the bottom of the filter hood. The collection frame is fixedly installed on the bottom of the filter cartridge.

[0013] As a further embodiment of this utility model: the air guiding assembly includes an air guiding pipe and a first flange, the air guiding pipe is fixedly installed at the input end of the first valve, and the first flange is fixedly installed at the input end of the air guiding pipe.

[0014] As a further embodiment of this utility model: the connecting assembly includes a first splicing air pipe, a second flange, a third flange, a second splicing air pipe, bolts, and nuts. The first splicing air pipe is fixedly installed at the output end of the second valve, the second flange is fixedly installed at the output end of the first splicing air pipe, the third flange is disposed on one side of the second flange, the second splicing air pipe is fixedly installed on one side of the third flange, the bolts are disposed inside the second flange and the third flange, and the nuts are threadedly connected to the outer side of the bolts.

[0015] As a further embodiment of this utility model: the pressure measuring component includes a maintenance valve and a pressure gauge, the maintenance valve is fixedly installed on the front of the first spliced ​​air pipe, and the pressure gauge and the maintenance valve are fixedly installed.

[0016] As a further improvement of this utility model, the filter assembly also includes a handle, which is fixedly installed on the top of the top cover.

[0017] As a further improvement of this utility model: the top and bottom of the back of the cabinet are provided with mounting components, the mounting components include mounting plates and mounting holes, the mounting plates are fixedly installed on the back of the cabinet, and the mounting holes are respectively opened at both ends of the mounting plates.

[0018] As a further embodiment of this utility model: one side of the bolt abuts against one side of the third flange, and the output end of the second splicing air pipe and the joint are fixedly installed.

[0019] As a further improvement of this utility model: the filter cover initially intercepts larger particulate impurities with its mesh structure, and the filter cotton inside the filter cartridge further adsorbs fine impurities.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. This utility model, through the setting of the filter component, allows the gas coming out of the reactor to be filtered first through the filter cartridge and filter cover in the filter component. The filter cover, with its mesh structure, initially intercepts larger particulate impurities, while the filter cotton inside the filter cartridge further adsorbs finer impurities. After the various impurities in the gas are removed by the double filtration, it is then transported to the inside of the connector through the connecting component, allowing the connector to purge and clean the instrument head. In this way, impurities in the reactor can be effectively prevented from entering the connecting component and instrument through the pipeline, avoiding problems such as pipeline blockage and instrument malfunction caused by impurity accumulation, ensuring the accuracy and stability of instrument measurement, and reducing equipment maintenance frequency and safety hazards.

[0022] 2. This utility model, through the cooperation of the mounting plate and mounting holes in the mounting assembly, can firmly fix the device to the wall or other structures, avoiding the impact of equipment shaking on the connection sealing or filtration effect, and enhancing the installation stability of the device in the industrial environment. Attached Figure Description

[0023] Figure 1 A schematic diagram of a preferred embodiment of an instrument head purging device provided by this utility model;

[0024] Figure 2 for Figure 1 The diagram shows the internal structure of the cabinet.

[0025] Figure 3 for Figure 2 The diagram shows the structure of the filter assembly.

[0026] Figure 4 for Figure 3 A schematic diagram of a partial cross-sectional structure of the filter assembly shown.

[0027] Figure 5 for Figure 3The diagram shows the structure of the pressure measuring component.

[0028] In the diagram: 1. Protective component; 11. Cabinet body; 12. Door; 13. Observation window; 2. Mounting component; 21. Mounting plate; 22. Mounting hole; 3. Air guiding component; 31. Air guiding pipe; 32. First flange; 4. Connecting component; 41. First splicing air pipe; 42. Second flange; 43. Third flange; 44. Second splicing air pipe; 45. Bolt; 46. Nut; 5. Connector; 6. Filtering component; 61. Housing; 62. First valve; 63. Second valve; 64. Top cover; 65. Handle; 66. Filter cover; 67. Filter cartridge; 68. Collection frame; 7. Pressure testing component; 71. Inspection valve; 72. Pressure gauge. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0032] Example 1:

[0033] Please see Figure 1 - Figure 5 This is the first embodiment of the present invention.

[0034] This embodiment provides an instrument head purging device, including:

[0035] Protective component 1;

[0036] Air guiding component 3 is disposed on one side of protective component 1;

[0037] Connection component 4 is located on the other side of the protective component 1;

[0038] Connector 5 is located at the output end of the connecting component 4;

[0039] The filter assembly 6 is disposed on the inner side of the protective assembly 1 and is located at the output end of the air guide assembly 3 and the input end of the connecting assembly 4.

[0040] For example, the protective component 1 includes a cabinet body 11, a door 12, and an observation window 13. The door 12 is rotatably connected to the front of the cabinet body 11, and the observation window 13 is fixedly installed on the front of the door 12.

[0041] Furthermore, the hinges between the door 12 and the cabinet 11 are made of stainless steel and can rotate flexibly; the edge of the observation window 13 is sealed to the door 12 with sealant, and the door 12 is also equipped with a door lock to prevent unauthorized personnel from opening it at will and to ensure the safety of the device.

[0042] For example, the filter assembly 6 includes a housing 61, a first valve 62, a second valve 63, a top cover 64, a filter hood 66, a filter cartridge 67, and a collection frame 68. The bottom of the housing 61 is fixedly installed on the bottom of the inner side of the cabinet body 11. The first valve 62 is fixedly installed on the bottom of one side of the housing 61. The second valve 63 is fixedly installed on the top of the other side of the housing 61. The top cover 64 is threaded to the inside of the top of the housing 61. The filter hood 66 is fixedly installed on the bottom of the top cover 64. The filter cartridge 67 is fixedly installed on the bottom of the filter hood 66. The collection frame 68 is fixedly installed on the bottom of the filter cartridge 67.

[0043] Furthermore, the outer shell 61 is made of corrosion-resistant metal material, the filter cover 66 has a mesh structure, which can initially filter larger particles of impurities, the filter cartridge 67 is filled with filter cotton and other filter materials, which can filter fine impurities, and the collection frame 68 can collect the filtered impurities for easy cleaning.

[0044] For example, the air guide assembly 3 includes an air guide pipe 31 and a first flange 32. The air guide pipe 31 is fixedly installed at the input end of the first valve 62, and the first flange 32 is fixedly installed at the input end of the air guide pipe 31.

[0045] Furthermore, the gas guide pipe 31 is made of high-strength alloy material, which has good corrosion resistance and pressure resistance. The first flange 32 is easy to connect to the venting outlet of the reactor, and the connection is tight to prevent gas leakage.

[0046] For example, the connecting assembly 4 includes a first splicing air pipe 41, a second flange 42, a third flange 43, a second splicing air pipe 44, bolts 45, and nuts 46. The first splicing air pipe 41 is fixedly installed at the output end of the second valve 63. The second flange 42 is fixedly installed at the output end of the first splicing air pipe 41. The third flange 43 is disposed on one side of the second flange 42. The second splicing air pipe 44 is fixedly installed on one side of the third flange 43. Bolts 45 are disposed inside the second flange 42 and the third flange 43. Nuts 46 are threadedly connected to the outer side of bolts 45, and one side of bolts 45 abuts against one side of the third flange 43. The output end of the second splicing air pipe 44 and the connector 5 are fixedly installed. A pressure measuring assembly 7 is provided on the front side of the first splicing air pipe 41. The pressure measuring assembly 7 includes a maintenance valve 71 and a pressure gauge 72. The maintenance valve 71 is fixedly installed on the front side of the first splicing air pipe 41. The pressure gauge 72 and the maintenance valve 71 are fixedly installed.

[0047] Furthermore, the first splicing air pipe 41 and the second splicing air pipe 44 are both made of the same material as the air guide pipe 31. The second flange 42 and the third flange 43 are connected by bolts 45 and nuts 46, which are firmly connected and easy to disassemble and install, facilitating later maintenance and replacement of parts. The inspection valve 71 can be closed when the pressure gauge 72 malfunctions, which facilitates the inspection or replacement of the pressure gauge 72. The pressure gauge 72 can display the gas pressure in real time to ensure that the purging pressure is within the appropriate range.

[0048] In use, the gas guide pipe 31 is connected to the vent outlet of the reactor via the first flange 32. The first valve 62 and the second valve 63 are opened, and the propylene gas enters the housing 61 of the filter assembly 6 through the gas guide pipe 31. After passing through the filter cover 66 and the filter cartridge 67 in sequence to remove impurities, the gas is transported to the instrument head for purging via the first splicing gas pipe 41 and the second splicing gas pipe 44 through the connector 5. The internal condition can be observed through the observation window 13, and the gas pressure can be monitored through the pressure gauge 72.

[0049] In summary, by configuring the filter assembly 6, the gas exiting the reactor during use will first be filtered through the filter cartridge 67 and filter cover 66 in the filter assembly 6. The filter cover 66 uses a mesh structure to initially intercept larger particulate impurities, while the filter cotton inside the filter cartridge 67 further adsorbs fine impurities. After the various impurities in the gas are removed by the double filtration, it is then transported to the inside of the connector 5 through the connecting assembly 4, so that the connector 5 can purge and clean the instrument head. In this way, impurities in the reactor can be effectively prevented from entering the connecting assembly 4 and the instrument through the pipeline, avoiding problems such as pipeline blockage and instrument malfunction caused by impurity accumulation, ensuring the accuracy and stability of instrument measurement, and reducing the frequency of equipment maintenance and safety hazards.

[0050] Example 2:

[0051] Please see Figure 1 - Figure 4 This is the second embodiment of the present utility model.

[0052] For example, the filter assembly 6 also includes a handle 65, which is fixedly mounted on the top of the top cover 64.

[0053] Furthermore, when cleaning the filter cartridge 67 and filter cover 66, the user can turn the handle 65 to make the top cover 64 threadedly connected to the top of the inner side of the outer casing 61, thereby disassembling the top cover 64 and the outer casing 61.

[0054] For example, mounting components 2 are provided at the top and bottom of the back of the cabinet body 11. The mounting components 2 include mounting plates 21 and mounting holes 22. The mounting plates 21 are fixedly mounted on the back of the cabinet body 11, and the mounting holes 22 are respectively opened at both ends of the mounting plates 21.

[0055] Furthermore, the mounting plate 21 is made of metal and is welded and fixed to the cabinet body 11. It has high strength, and the device can be fixed to the wall or other fixed structure through the mounting holes 22 using expansion bolts, ensuring the stability of the device installation.

[0056] When in use, the device is fixed by mounting component 2. When the filter component 6 needs to be cleaned, close the first valve 62 and the second valve 63, open the door 12, hold the handle 65 and rotate the top cover 64 to remove the top cover 64 from the outer shell 61. Then the filter cover 66, filter cartridge 67 and collection frame 68 can be cleaned or replaced. The operation is convenient.

[0057] In summary, by using the mounting plate 21 and mounting hole 22 in the mounting assembly 2, the device can be securely fixed to the wall or other structure, avoiding the impact of equipment shaking on the connection sealing or filtration effect, and enhancing the installation stability of the device in the industrial environment.

[0058] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0059] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0060] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A meter head purging device, characterized in that: include: The protective component (1), the air guiding component (3), the connecting component (4), the connector (5), the filter component (6), and the pressure measuring component (7) are provided. The air guiding component (3) is located on one side of the protective component (1), the connecting component (4) is located on the other side of the protective component (1), the connector (5) is located at the output end of the connecting component (4), the filter component (6) is located on the inner side of the protective component (1) and is located at the output end of the air guiding component (3) and the input end of the connecting component (4), and the pressure measuring component (7) is located on the front side of the connecting component (4).

2. The instrument head purging device according to claim 1, characterized in that: The protective component (1) includes a cabinet body (11), a door (12) and an observation window (13). The door (12) is rotatably connected to the front of the cabinet body (11), and the observation window (13) is fixedly installed on the front of the door (12).

3. The instrument head purging device according to claim 2, characterized in that: The filter assembly (6) includes a housing (61), a first valve (62), a second valve (63), a top cover (64), a filter hood (66), a filter cartridge (67), and a collection frame (68). The bottom of the housing (61) is fixedly installed on the bottom of the inner side of the cabinet body (11). The first valve (62) is fixedly installed on the bottom of one side of the housing (61). The second valve (63) is fixedly installed on the top of the other side of the housing (61). The top cover (64) is threaded to the inside of the top of the housing (61). The filter hood (66) is fixedly installed on the bottom of the top cover (64). The filter cartridge (67) is fixedly installed on the bottom of the filter hood (66). The collection frame (68) is fixedly installed on the bottom of the filter cartridge (67).

4. The instrument head purging device according to claim 3, characterized in that: The air guide assembly (3) includes an air guide pipe (31) and a first flange. The air guide pipe (31) is fixedly installed at the input end of the first valve (62), and the first flange is fixedly installed at the input end of the air guide pipe (31).

5. The instrument head purging device according to claim 3, characterized in that: The connecting assembly (4) includes a first splicing air pipe (41), a second flange (42), a third flange (43), a second splicing air pipe (44), a bolt (45), and a nut (46). The first splicing air pipe (41) is fixedly installed at the output end of the second valve (63). The second flange (42) is fixedly installed at the output end of the first splicing air pipe (41). The third flange (43) is located on one side of the second flange (42). The second splicing air pipe (44) is fixedly installed on one side of the third flange (43). The bolt (45) is located inside the second flange (42) and the third flange (43). The nut (46) is threadedly connected to the outer side of the bolt (45).

6. The instrument head purging device according to claim 5, characterized in that: The pressure measuring component (7) includes a maintenance valve (71) and a pressure gauge (72). The maintenance valve (71) is fixedly installed on the front of the first spliced ​​air pipe (41), and the pressure gauge (72) and the maintenance valve (71) are fixedly installed.

7. The instrument head purging device according to claim 3, characterized in that: The filter assembly (6) also includes a handle (65), which is fixedly mounted on the top of the top cover (64).

8. The instrument head purging device according to claim 2, characterized in that: The top and bottom of the back of the cabinet body (11) are provided with mounting components (2). The mounting components (2) include mounting plates (21) and mounting holes (22). The mounting plates (21) are fixedly installed on the back of the cabinet body (11), and the mounting holes (22) are respectively opened at both ends of the mounting plates (21).

9. The instrument head purging device according to claim 5, characterized in that: One side of the bolt (45) abuts against one side of the third flange (43), and the output end of the second splicing air pipe (44) and the connector (5) are fixedly installed.

10. The instrument head purging device according to claim 3, characterized in that: The filter cover (66) initially intercepts larger particulate impurities with its mesh structure, and the filter cotton inside the filter cartridge (67) further adsorbs smaller impurities.

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