CN216116448U - Pressure simulation on-line correction device in ultrahigh polymerization degree polyvinyl chloride resin production process - Google Patents
Pressure simulation on-line correction device in ultrahigh polymerization degree polyvinyl chloride resin production process Download PDFInfo
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- CN216116448U CN216116448U CN202121370272.2U CN202121370272U CN216116448U CN 216116448 U CN216116448 U CN 216116448U CN 202121370272 U CN202121370272 U CN 202121370272U CN 216116448 U CN216116448 U CN 216116448U
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Abstract
The utility model discloses a pressure simulation online calibrating device in a production process of polyvinyl chloride resin with ultrahigh polymerization degree, which mainly comprises a movable standard pressure calibrating table, a partial pressure gas source pipe, a screw joint, a standard pressure gauge movable joint, a standard pressure gauge, a detection pressure gauge joint, a detection pressure gauge movable joint, a screw joint, a pressurizing short joint, a pressure regulating short joint, a micro pressure regulating valve, a movable joint flange, a pipe connecting flange, a fastening bolt, a short connecting pipe and a detection medium pipeline, wherein the movable standard pressure calibrating table connects the partial pressure gas source pipe with the standard pressure gauge through the screw joint; the detection pressure gauge is connected with the pressurization short circuit and the pressure regulation short circuit through the threaded openings through the movable joint of the detection pressure gauge and the threaded joints, and then is connected with the pipe connecting flange of the detection medium pipeline through the movable joint flange.
Description
Technical Field
The utility model relates to the field of pressure sampling monitoring analyzers in a production process of polyvinyl chloride resin with ultrahigh polymerization degree, in particular to a pressure simulation online calibrating device.
Background
At present, the pressure in the known polyvinyl chloride production process is a key process index which is strictly controlled and needs to be monitored timely. In the process of researching the production process of the polyvinyl chloride resin with ultrahigh polymerization degree, the pressure is taken as a key process control index, and plays an extremely important role in guiding and referencing production control. The primary pressure instrument and the secondary remote transmission pressure instrument on the site are pressure primary and secondary instruments with high value due to the requirements of process, safety and environmental protection, such as special process requirements and special material requirements of explosion-proof grade, ultrahigh pressure and the like. The existing problems are that in the production process of the polyvinyl chloride resin with ultrahigh polymerization degree, a pressure detection device is not arranged on a certain device or pipeline, but the pressure is required to be detected when the production is abnormal, and the problems existing in the production process are solved by matching with the timeliness of other process parameters, for example, after the polyvinyl chloride resin with ultrahigh polymerization degree reacts, two field pressure gauges are only designed in a discharge port and a discharge chute in a discharge pipeline, and a remote transmission pressure detection instrument is arranged at the discharge port, but no monitoring device is arranged in the middle part, once the resin is blocked, the processing method in the process is mostly that operators judge which section of pipeline is blocked by experience, the common method such as a pipeline knocking inspection method is adopted, the blockage problem is solved by detaching or disassembling the section of pipeline according to different sounds at two ends of the blocked pipeline, sometimes the wrong judgment condition is also judged, thereby consuming time and labor, the operation intensity of operators is increased, the pressure is not monitored in place, potential safety hazards exist, in addition, when the pressure detection position is unique, only a field pressure detection instrument or only a remote transmission pressure detection instrument is not compared or referred, and therefore when the pressure detection instrument is abnormal or needs to be detected and calibrated, a pressure detection table needs to be detached and detected by a special person, the quality or the deviation of the pressure detection instrument is confirmed, and the operation intensity of the operators is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pressure instrument which can compare pressure possibly having problems in the pressure detection and correction process on line by using the intermittent production characteristic of the production process of the polyvinyl chloride resin with the ultrahigh polymerization degree, is convenient to operate, effectively lightens the working strength, and is safe and reliable.
In order to achieve the purpose, the utility model provides an online pressure simulation calibrating device in a production process of polyvinyl chloride resin with ultrahigh polymerization degree, and aims to overcome the defects in the prior art and timely solve the problems of pressure detection and calibration. The pressure simulation online calibration device mainly comprises a movable standard pressure calibration table, a pressure dividing gas source pipe, a wire joint, a standard pressure gauge movable joint, a standard pressure gauge, a detection pressure gauge joint, a detection pressure gauge movable joint and a wire joint; the movable standard pressure calibration platform is used for connecting a partial pressure gas source pipe with a standard pressure gauge through a wire joint; the detection pressure gauge is connected with the pressure boosting short circuit and the pressure regulating short circuit through a screw port through a movable joint of the detection pressure gauge and a screw joint, and then is connected with a pipe connecting flange of a detection medium pipeline through a movable joint flange; the pressure boost short circuit is connected with the pressure regulating short circuit through a screw opening.
The standard pressure gauge is connected with a standard pressure gauge joint through a pressure gauge seat screw hole, the inner diameter of a movable joint of the standard pressure gauge is connected with the outer diameter of the standard pressure gauge joint and the outer diameter of a screw joint, and the inner diameter of the screw joint is connected with the outer diameter of a partial pressure gas source pipe.
And the pressure division gas source pipe is connected with a hole of a corresponding miniature pressure regulating valve on the pressure regulating short circuit through a screw hole.
And the movable joint of the standard pressure gauge fastens the butt joint of the standard pressure gauge joint and the screw joint.
The movable joint of the detection pressure gauge is connected with the detection pressure gauge through the detection pressure gauge joint, and is connected with the pressurization short circuit and the pressure regulation short circuit through the screw joint.
The upper part of the pressure boosting short circuit is connected with the matching screw opening of the screw joint, and the lower part of the pressure boosting short circuit is connected and matched with the pressure regulating short circuit through the screw opening.
The upper part of the pressure regulating short circuit is connected with the pressure regulating short circuit through a threaded opening, the lower part of the pressure regulating short circuit is connected with the loose joint flange through a threaded opening or sleeved, the periphery of the pressure regulating short circuit is fastened by a steel hoop to ensure sealing, and the two symmetrical parts of the main body are provided with the miniature pressure regulating valves 13.
The loose joint flange is connected with a connecting pipe flange of a detection medium pipeline, and eight fastening bolts are uniformly distributed and fastened along the circumference of the flange.
Preferably, another structural style of the boosting short circuit and the pressure regulating short circuit is designed in an integrated mode.
Preferably, the pressure boosting short circuit pressure diaphragm and the pressure regulating short circuit are internally provided with filter screens.
Preferably, another structural style of the wire joint is a snake-shaped extension pipe, the upper parts of the wire openings at the two ends of the snake-shaped extension pipe are connected with the movable joint of the detection pressure gauge, and the lower parts of the snake-shaped extension pipe are connected with the pressurizing short joint.
Preferably, the inner hole of the pressurizing short circuit is in two conical shapes which are expanded and then reduced, the angle A forms an inclination angle of 20-30 degrees with the vertical direction, and the angle B forms an inclination angle of 20-30 degrees with the vertical direction.
Preferably, the standard pressure gauge is compared with the detection pressure gauge through the pressure simulation online correction device under the same working condition.
The same working condition refers to the same air source, the same temperature, the same medium and the same pressure.
Compared with the prior art, the utility model has the beneficial effects that: under the same working condition, the standard pressure gauge can realize the real-time online function of simulated pressure detection by comparing the pressure simulation online calibration device with the detection pressure gauge, and when the system needs pressure comparison, the detection is more accurate and reasonable by connecting the miniature pressure regulating valve screw hole at one end of the pressure regulating short circuit with the same air source, the same temperature, the same medium and the pressure; the other structural form of the wire joint is a snake-shaped extension pipe, the upper parts of wire openings at two ends of the snake-shaped extension pipe are connected with movable joints of the detection pressure gauge, the lower parts of the snake-shaped extension pipe are connected with the pressurization short circuit, the snake-shaped extension pipe can be used in occasions with limited pressure detection site positions, and the snake-shaped extension pipe can be used for connecting the detection pressure gauge with special positions and detected facilities of use occasions; the design of the pressure regulating short circuit can not only enable the standard pressure gauge to be connected and compared with the detection pressure gauge, but also can adjust the pressure in the system by using a miniature pressure regulating valve so as to prevent the detection pressure gauge from being damaged by overpressure due to overlarge pressure; the design of the inner hole of the pressurizing short circuit enables the air source to be more stable and plays a role in stabilizing pressure; the design of portable standard pressure check table can remove convenient, can realize the effect of on-line measuring scene pressure, thereby need not all to tear down to the pressure check room, on the other hand, can be to being surveyed pipeline or equipment local pressure detection, simultaneously also can wait to examine the manometer to other that need detect and utilize intermittent type production clearance to carry out on-line measuring, pressure boost short circuit pressure diaphragm, the design that has the filter screen in the pressure regulating short circuit makes more accurate, above-mentioned pressure boost short circuit hole becomes two cones that reduce after the expansion again, angle A becomes 20 to 30 degrees inclinations with vertical direction, angle B becomes the design at 20-30 degrees inclinations with vertical direction, make pressure more stable, detect and calibration pressure safe and reliable, thereby the quality or the deviation of pressure measurement instrument has been confirmed, alleviate operating personnel's operating strength.
Drawings
FIG. 1 is a schematic view of an on-line pressure simulation calibrating device in the process for producing polyvinyl chloride resin with ultrahigh polymerization degree according to the present invention;
fig. 2 is a schematic diagram of the combination of the boost short circuit and the voltage-regulating short circuit in fig. 1.
In FIGS. 1-2: 1 is a movable standard pressure calibration table; 2 is a partial pressure gas source pipe; 3 is a wire joint; 4 is a movable joint of a standard pressure gauge; 5 is a standard pressure gauge joint; 6 is a standard pressure gauge; 7 is a detection pressure gauge; 8 is a detection pressure gauge joint; 9 is a movable joint for detecting the pressure gauge; 10 is a wire joint; 11 is a pressure boost short circuit; 12 is a voltage regulating short circuit; 13 is a micro pressure regulating valve; 14 is a loose joint flange; 15 is a pipe connecting flange; 16 is a fastening bolt; 17 is a short connecting pipe; 18 is a detection tube; 19 is a filter screen; and 20 is a pressure diaphragm.
Detailed Description
Referring to the attached drawing 1, in order to achieve the above object, embodiment 1 of the present invention provides a pressure calibrating device which can compare pressure possibly having problems in a pressure detection and calibration process on line by using the intermittent production characteristics of a polyvinyl chloride resin production process with an ultrahigh polymerization degree, is convenient to operate, effectively reduces the working strength, and is safe and reliable.
In order to achieve the purpose, the utility model provides an online pressure simulation calibrating device in a production process of polyvinyl chloride resin with ultrahigh polymerization degree, and aims to overcome the defects in the prior art and timely solve the problems of pressure detection and calibration. The pressure simulation online calibration device mainly comprises a movable standard pressure calibration table 1, a partial pressure gas source pipe 2, a screw joint 3, a standard pressure gauge movable joint 4, a standard pressure gauge joint 5, a standard pressure gauge 6, a detection pressure gauge 7, a detection pressure gauge joint 8, a detection pressure gauge movable joint 9 and a screw joint 10; the pressure-increasing short circuit 11, the pressure-regulating short circuit 12, the miniature pressure-regulating valve 13, the loose joint flange 14, the pipe connecting flange 15, the fastening bolt 16, the short connecting pipe 17 and the detection medium pipeline 18, wherein the movable standard pressure calibration stand 1 connects the pressure-dividing gas source pipe 2 with the standard pressure gauge 6 through the wire joint 3; the detection pressure gauge 7 is connected with the pressure boosting short circuit 11 and the pressure regulating short circuit 12 through threaded openings through a movable joint 9 and a threaded joint 10 of the detection pressure gauge, and then is connected with a pipe connecting flange 15 of a detection medium pipeline 18 through a movable joint flange 14; and the pressure boosting short circuit 11 is connected with the pressure regulating short circuit 12 through a screw port.
The standard pressure gauge 6 is connected with a standard pressure gauge joint 5 through a pressure gauge seat screw hole, the inner diameter of a movable joint 4 of the standard pressure gauge is connected with the outer diameter of the standard pressure gauge joint 5 and the outer diameter of a screw joint 3, and the inner diameter of the screw joint 3 is connected with the outer diameter of a partial pressure gas source pipe 2.
The partial pressure gas source pipe 2 is connected with a hole on the pressure regulating short circuit 12, which corresponds to the micro pressure regulating valve 13, through a threaded opening.
And the movable joint 4 of the standard pressure gauge fastens the butt joint of the joint 5 of the standard pressure gauge and the screw joint 3.
The movable joint 9 of the detection pressure gauge is connected with the detection pressure gauge 7 through a detection pressure gauge joint 8, and is connected with a pressurization short circuit 11 and a pressure regulation short circuit 12 through a wire joint 10.
The upper part of the pressure boosting short circuit 11 is connected with the matching wire opening of the wire joint 10, and the lower part of the pressure boosting short circuit is connected and matched with the pressure regulating short circuit 12 through the wire opening.
The upper part of the pressure regulating short joint 12 is connected with the pressure boosting short joint 11 through a threaded opening, the lower part of the pressure regulating short joint is connected with the loose joint flange 14 through a threaded opening or sleeved, the periphery of the pressure regulating short joint is fastened by a steel hoop to ensure sealing, and two symmetrical parts of the main body are provided with miniature pressure regulating valves 13.
The loose joint flange 14 is connected with a pipe connecting flange 15 of a detection medium pipeline 18, and eight fastening bolts 16 are uniformly distributed and fastened along the circumference of the flange.
Preferably, another structural form of the boosting short circuit 11 and the voltage regulating short circuit 12 is designed in an integrated mode.
Preferably, the pressure diaphragm 20 of the pressure boost short circuit 11 and the pressure regulating short circuit 12 are internally provided with filter screens 19.
Preferably, the other structural form of the wire joint 10 is a snake-shaped extension pipe, the upper parts of the wire openings at two ends of the snake-shaped extension pipe are connected with the movable joint 9 of the detection pressure gauge, and the lower parts of the snake-shaped extension pipe are connected with the pressurizing short joint 11.
Preferably, the inner hole of the booster pup joint 11 is in two conical shapes which are expanded and then reduced, the angle A forms an inclination angle of 20-30 degrees with the vertical direction, and the angle B forms an inclination angle of 20-30 degrees with the vertical direction.
Preferably, a filter screen 19 is arranged in the pressure diaphragm 20 of the pressure booster short circuit 11 and the pressure regulating short circuit 12.
Preferably, the standard pressure gauge 6 is compared with the detection pressure gauge 7 through a pressure simulation online calibration device under the same working condition.
The same working condition refers to the same air source, the same temperature, the same medium and the same pressure.
Compared with the prior art, the utility model has the beneficial effects that: the standard pressure gauge 6 can realize the real-time online function of simulated pressure detection by comparing the pressure simulation online calibration device with the detection pressure gauge 7 under the same working condition, and when the system needs pressure comparison, the system is connected with the same air source, the same temperature, the same medium and the pressure through the miniature pressure regulating valve 13 screw hole at one end of the pressure regulating short circuit 12, so that the detection is more accurate and reasonable; the other structural form of the wire joint 10 is a snake-shaped extension pipe, the upper parts of wire openings at two ends of the snake-shaped extension pipe are connected with a movable joint 9 of a detection pressure gauge, the lower parts of the snake-shaped extension pipe are connected with a pressurizing short joint 11, the snake-shaped extension pipe can be used in occasions with limited pressure detection site positions, and the snake-shaped extension pipe can be used for connecting the detection pressure gauge 7 with detected facilities in special positions and use occasions; the design of the pressure regulating short circuit 12 can not only enable the standard pressure gauge 6 to be connected and compared with the detection pressure gauge 7, but also can adjust the pressure in the system by using the miniature pressure regulating valve 13 so as to prevent the pressure from being too high and damaging the detection pressure gauge 7 due to overpressure; the design of the inner hole of the booster pup joint 11 ensures that the air source is more stable and plays a role in stabilizing pressure; portable standard pressure check table 1's design can remove conveniently, can realize the effect of on-line measuring scene pressure, thereby need not all to tear down to the pressure check room, on the other hand, can be to being surveyed pipeline or equipment local pressure detection, simultaneously also can wait to examine the manometer to utilize intermittent type production clearance to carry out on-line measuring to other needs that detect, pressure boost short circuit 11 pressure diaphragm 20, the design that has filter screen 19 in the pressure regulating short circuit 12 makes more accurately just, above-mentioned two cones that reduce after 11 holes of pressure boost short circuit become the expansion again, angle A becomes 20 to 30 degrees inclinations with vertical direction, angle B becomes 20 to 30 degrees inclinations with vertical direction and designs, make pressure more stable, it is safe and reliable to detect and calibrate pressure, thereby the quality or the deviation of pressure measurement instrument have been confirmed, alleviate operating personnel's manipulation strength.
According to the design components and the connection mode of the components, the working mode of the pressure simulation online calibration device in the specific ultrahigh polymerization degree polyvinyl chloride resin production process is briefly described as follows:
the utility model provides an online calibrating device of pressure simulation in ultrahigh polymerization degree polyvinyl chloride resin production technology, in standard pressure gauge 6 part, top-down, standard pressure gauge 6 passes through the manometer seat silk mouth and is connected with standard pressure gauge joint 5, and the internal diameter of standard pressure gauge union 4 connects 5 external diameters of standard pressure gauge joint and 3 external diameters of silk connector, and the internal diameter of silk connector 3 is connected with partial pressure gas source pipe 2 external diameter, partial pressure gas source pipe 2 links to each other through the silk mouth with the hole of the miniature air-vent valve 13 that corresponds on the pressure regulating short circuit 12. The detection pressure gauge 7 is connected with the pressure boosting short circuit 11 and the pressure regulating short circuit 12 through threaded openings through a movable joint 9 and a threaded joint 10 of the detection pressure gauge, and then is connected with a pipe connecting flange 15 of a detection medium pipeline 18 through a movable joint flange 14; the movable joint 4 of the standard pressure gauge fastens the butt joint of the joint 5 of the standard pressure gauge and the screw joint 3; the movable joint 9 of the detection pressure gauge is connected with the detection pressure gauge 7 through the detection pressure gauge joint 8, and is connected with the pressure boosting short circuit 11 and the pressure regulating short circuit 12 through the screw joint 10 in a matching way. The upper part of the pressure regulating short joint 12 is connected with the pressure boosting short joint 11 through a threaded opening, the lower part of the pressure regulating short joint is connected with the loose joint flange 14 through a threaded opening or sleeved, the periphery of the pressure regulating short joint is fastened by a steel hoop to ensure sealing, and two symmetrical parts of the main body are provided with miniature pressure regulating valves 13. In the use process, the pressure test is connected according to the mode, no leakage exists during the pressure test, the miniature pressure regulating valve 13 is gradually regulated, the pressure of the system is stable and free of fluctuation, and meanwhile, the detection pressure gauge 7 is compared with the standard pressure gauge 6. The purpose of detecting the tested facility is achieved, and the purpose of detecting the online inspection and calibration of the pressure gauge 7 is achieved.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood that it is not intended to be exhaustive or to limit the utility model to the precise form disclosed, and that various modifications and adaptations may be resorted to without departing from the principles of the utility model and are intended to those skilled in the art by virtue of the fact that the utility model is described in detail and with the understanding that various embodiments of the utility model are suited to the particular use contemplated.
Claims (10)
1. An online proofreading device of pressure simulation in ultra-high polymerization degree polyvinyl chloride resin production technology is characterized in that: the pressure simulation online calibration device mainly comprises a movable standard pressure calibration table, a pressure dividing gas source pipe, a wire joint, a standard pressure gauge movable joint, a standard pressure gauge, a detection pressure gauge joint, a detection pressure gauge movable joint and a wire joint; the movable standard pressure calibration platform is used for connecting a partial pressure gas source pipe with a standard pressure gauge through a wire joint; the detection pressure gauge is connected with the pressure boosting short circuit and the pressure regulating short circuit through a screw port through a movable joint of the detection pressure gauge and a screw joint, and then is connected with a pipe connecting flange of a detection medium pipeline through a movable joint flange; the pressure boost short circuit is connected with the pressure regulating short circuit through a screw opening.
2. The on-line pressure simulation calibrating device in the production process of the polyvinyl chloride resin with ultrahigh polymerization degree according to claim 1, characterized in that: the standard pressure gauge is connected with the standard pressure gauge joint through a pressure gauge seat screw hole, the inner diameter of the movable joint of the standard pressure gauge is connected with the outer diameter of the standard pressure gauge joint and the outer diameter of the screw joint, and the inner diameter of the screw joint is connected with the outer diameter of the partial pressure gas source pipe.
3. The on-line pressure simulation calibrating device in the production process of the polyvinyl chloride resin with ultrahigh polymerization degree according to claim 1, characterized in that: and the pressure division gas source pipe is connected with a hole of the corresponding miniature pressure regulating valve on the pressure regulating short circuit through a screw hole.
4. The on-line pressure simulation calibrating device in the production process of the polyvinyl chloride resin with ultrahigh polymerization degree according to claim 1, characterized in that: the standard pressure gauge movable joint fastens the butt joint of the standard pressure gauge joint and the screw joint, connects the detection pressure gauge through the detection pressure gauge joint, connects pressure boost short circuit, pressure regulating short circuit through the screw joint, pressure boost short circuit upper portion is connected with screw joint cooperation screw mouth, and the lower part passes through the screw mouth with the pressure regulating short circuit and is connected the cooperation.
5. The on-line pressure simulation calibrating device in the production process of the polyvinyl chloride resin with ultrahigh polymerization degree according to claim 1, characterized in that: the upper part of the pressure regulating short circuit is connected with the pressure regulating short circuit through a threaded opening, the lower part of the pressure regulating short circuit is connected with the loose joint flange through a threaded opening or sleeved, the periphery of the pressure regulating short circuit is fastened by a steel hoop to ensure sealing, and the two symmetrical parts of the main body are provided with miniature pressure regulating valves.
6. The on-line pressure simulation calibrating device in the production process of the polyvinyl chloride resin with ultrahigh polymerization degree according to claim 1, characterized in that: the loose joint flange is connected with a connecting pipe flange of the detection medium pipeline, and eight fastening bolts are uniformly distributed and fastened along the periphery of the flange.
7. The on-line pressure simulation calibrating device in the production process of the polyvinyl chloride resin with ultrahigh polymerization degree according to claim 1, characterized in that: the pressure-increasing short circuit is internally provided with a pressure diaphragm and internally provided with a filter screen.
8. The on-line pressure simulation calibrating device in the production process of the polyvinyl chloride resin with ultrahigh polymerization degree according to claim 1, characterized in that: the inner hole of the pressure boosting short circuit is in two conical shapes which are expanded and then reduced, an inclination angle between the angle A and the vertical direction is 20-30 degrees, and an inclination angle between the angle B and the vertical direction is 20-30 degrees.
9. The on-line pressure simulation calibrating device in the production process of the polyvinyl chloride resin with ultrahigh polymerization degree according to claim 1, characterized in that: the pressure boost short circuit is with another kind of structural style formula design as an organic whole of pressure regulating short circuit, another kind of structural style of silk joint is snakelike extension pipe, the silk mouthful upper portion at snakelike extension pipe both ends is connected with detection manometer union, and the lower part is connected with the pressure boost short circuit.
10. The on-line pressure simulation calibrating device in the production process of the polyvinyl chloride resin with ultrahigh polymerization degree according to claim 1, characterized in that: the standard pressure gauge is compared with the detection pressure gauge through the pressure simulation online correction device under the same working condition, wherein under the same working condition, the standard pressure gauge refers to the conditions of the same air source, the same temperature, the same medium and the same pressure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121370272.2U CN216116448U (en) | 2021-06-21 | 2021-06-21 | Pressure simulation on-line correction device in ultrahigh polymerization degree polyvinyl chloride resin production process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121370272.2U CN216116448U (en) | 2021-06-21 | 2021-06-21 | Pressure simulation on-line correction device in ultrahigh polymerization degree polyvinyl chloride resin production process |
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| CN216116448U true CN216116448U (en) | 2022-03-22 |
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| CN202121370272.2U Active CN216116448U (en) | 2021-06-21 | 2021-06-21 | Pressure simulation on-line correction device in ultrahigh polymerization degree polyvinyl chloride resin production process |
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2021
- 2021-06-21 CN CN202121370272.2U patent/CN216116448U/en active Active
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