PFA pipeline with antistatic function

Abstract

The invention provides a PFA pipeline with an antistatic function, and relates to the technical field of pipelines, the PFA pipeline comprises a base and an ultra-pure pipe, at least two conductive strips are fixedly mounted on the surface of the ultra-pure pipe, two first fixing frames are fixedly mounted at the top end of the base, a second fixing frame is fixedly mounted at the side end of each first fixing frame, and the second fixing frame is fixedly mounted at the side end of each first fixing frame. A connecting base is slidably mounted at the side end of each second fixing frame, a mounting block is mounted at the side end of each connecting base, a connector is mounted at the top end of each mounting block and guides airflow into the mounting block through a pipeline, meanwhile, a closing sleeve is arranged at the side end of each mounting block, and the two ends of each closing sleeve are connected with the corresponding mounting block and a butt joint frame correspondingly; the two fixing pipes are installed at the side end of the butt joint frame, the multiple nozzles are formed in the side ends of the fixing pipes, airflow is blown to the surface of the ultra-pure pipe through the nozzles, dust accumulated on the surface of the ultra-pure pipe is cleaned, the surface of the ultra-pure pipe is cleaner, and static electricity is convenient to remove.

Description

Technical Field

[0001] The invention belongs to the technical field of pipelines, and more specifically, particularly relates to a PFA pipeline with antistatic function. Background Art

[0002] PFA piping is highly tolerant to most chemical substances, including strong acids, strong alkalis, strong oxidants, etc. In various corrosive media, PFA piping can maintain stable performance without corrosion, dissolution or deterioration. PFA piping can be connected in a variety of ways, such as hot-melt connection, flaring connection, threaded connection, etc. These connection methods are simple and reliable, and can ensure the sealing and stability of the piping system.

[0003] 1. The volume resistivity of the PFA pipeline itself is relatively high. When transporting certain fluids, especially flammable and explosive fluids, static electricity may be generated and accumulated. In particular, when the internal part of the pipeline transports chemical flammable gases or liquids, if the static electricity cannot be conducted away in time, static sparks may be generated, which may easily cause fire accidents.

[0004] 2. Before the installation of PFA pipeline, the pipeline is transported, and the surface of PFA pipeline will continue to be covered with dust. When the particles in the dust rub against the surface of the pipeline or rub against each other, especially in a dry environment, static electricity will be generated. During installation, if the static electricity carried by the pipeline itself cannot be removed in time, it will affect normal use. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a PFA pipeline with antistatic function to solve the above problems.

[0006] A PFA pipeline with anti-static function comprises a base and an ultrapure tube, at least two conductive strips are fixedly installed on the surface of the ultrapure tube, two first fixing frames are fixedly installed on the top of the base, a second fixing frame is fixedly installed on the side end of each of the first fixing frames, a connecting seat is slidably installed on the side end of each of the second fixing frames, an elimination rod is rotatably installed on the side end of each of the connecting seats, a friction sleeve is fixedly installed on the side end of each of the elimination rods, two docking frames are fixedly installed on the side end of each of the connecting seats, and a fixed tube is fixedly installed on the side end of each of the docking frames.

[0007] Preferably, a reset plate is slidably installed on the side end of each connecting seat, a spring rod is fixedly installed on the side end of each reset plate, a positioning plate is fixedly installed on the side end of each reset plate, a closing sleeve is slidably installed on the side end of each docking frame, a mounting block is fixedly installed on the side end of each connecting seat, a joint is fixedly installed on the top of each mounting block, a gear ring is rotatably installed on the top of each second fixing frame, and a second push rod is rotatably installed on the top of each gear ring.

[0008] Preferably, a hydraulic rod is fixedly installed on the top of each of the first fixed frames, the tops of the two hydraulic rods are fixedly installed with the same top plate, the bottom end of the top plate is fixedly installed with a limit plate, the side ends of the top plate are rotatably installed with two first push rods, the top of each of the first fixed frames is slidably installed with a guide slide, the side ends of each of the guide slides are fixedly installed with a rack, the side ends of each of the connecting seats are fixedly installed with an electrostatic detector, the side ends of each of the electrostatic detectors are fixedly installed with at least two probes, at least two support wheels are rotatably installed on the top of the base, and two deflection wheels are provided at the top of the base, and the two deflection wheels are installed at an inclined angle.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] In the present invention, an elimination rod is rotatably installed on the side end of the connecting seat, and the elimination rod is connected in series with the power supply inside the base through a wiring harness. The elimination rod usually uses a high-voltage power supply to generate corona discharge. Under the action of the high-voltage electric field, the air is ionized to generate a large number of positive ions and negative ions, and neutralize the electrostatic charge of the ultrapure tube, thereby eliminating the static electricity on the surface of the ultrapure tube. The deflection wheel contacts the ultrapure tube, and the two deflection wheels drive the ultrapure tube to rotate on the top of the supporting wheel. The ultrapure tube rotates and moves between the two elimination rods, which is convenient for the elimination rod to completely remove the static electricity on the surface of the ultrapure tube.

[0011] In the present invention, a mounting block is installed at the side end of the connecting seat, a joint is installed at the top of the mounting block, the joint guides the airflow into the interior of the mounting block through a pipeline, and at the same time, a closed sleeve is provided at the side end of the mounting block, the two ends of the closed sleeve are respectively connected to the mounting block and the docking frame, two fixed pipes are installed at the side end of the docking frame, and a plurality of nozzles are provided at the side end of the fixed pipe. The airflow is blown to the surface of the ultrapure tube through the nozzles to clean the dust accumulated on the surface of the ultrapure tube, so that the surface of the ultrapure tube is cleaner and static electricity is removed easily.

[0012] In the present invention, a plurality of probes are moved toward the surface of the ultrapure tube by moving the connecting seat, and the distance between the top end of the probe and the ultrapure tube is shortened, but the ultrapure tube is not in contact with the probe. Due to electrostatic induction, induced charge is generated in the probe. The probe is usually a metal electrode, and a capacitor is formed between the probe and the object to be measured. After the static electricity of the ultrapure tube is eliminated by the elimination rod, the probe is used to detect the static electricity on the surface of the ultrapure tube to ensure the effect of static electricity elimination.

[0013] In the present invention, by driving the closing sleeve to slide back and forth continuously on the side end of the docking frame, a closing plate is installed inside the closing sleeve, which can seal the inside of the docking frame. Through the reciprocating sliding of the closing sleeve, the nozzle on one side of the fixed tube can intermittently blow out air flow, which can clean the ultrapure tube. At the same time, the air supply is stopped when the air flow is not needed, thereby significantly reducing energy consumption.

[0014] In the present invention, the hydraulic rod is telescopically extended in the reverse direction, and the hydraulic rod drives the top plate to move downward, and the top plate drives the limit plate to first squeeze and limit the surface of the ultrapure tube, and the first push rod is tilted at the top end of the first fixed frame, and thrust is applied to the guide slide, and the guide slide slide slides horizontally toward the side end of the gear ring, and the guide slide drives the rack to move, driving the gear ring to rotate in the opposite direction, pushing the end of the second push rod, and after the second push rod is deflected, thrust is applied to the connecting seat, so that the connecting seat slides on the side end of the second fixed frame, and the spacing between the two connecting seats is adjusted, and static electricity is eliminated for limiting the ultrapure tubes of different specifications. At the same time, the positions of the top plate and the connecting seat are simultaneously controlled by the hydraulic rod, thereby reducing the volume of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the ultrapure tube of the present invention;

[0016] Figure 2 This is a schematic diagram of the base structure of the present invention

[0017] Figure 3 It is a schematic diagram of the top plate structure of the present invention;

[0018] Figure 4 It is a schematic diagram of the support wheel structure of the present invention;

[0019] Figure 5 It is a schematic diagram of the structure of the first fixing frame of the present invention;

[0020] Figure 6 It is a schematic diagram of the structure of the connecting seat of the present invention;

[0021] Figure 7 It is a schematic diagram of the structure of the elimination rod of the present invention;

[0022] Figure 8 It is a schematic diagram of the structure of the reset plate of the present invention;

[0023] Fig. 9It is a top view of the present invention as a whole.

[0024] In the figure, the corresponding relationship between the component names and the figure numbers is: 11, base; 12, conductive strip; 13, ultrapure tube; 14, first fixed frame; 15, second fixed frame; 16, top plate; 17, limit plate; 18, static detector; 19, probe; 21, connecting seat; 22, hydraulic rod; 23, first push rod; 24, guide slide; 25, rack; 26, gear ring; 27, second push rod; 28, elimination rod; 29, friction sleeve; 31, fixed tube; 32, mounting block; 33, joint; 34, docking frame; 35, closing sleeve; 36, reset plate; 37, spring rod; 38, positioning plate; 39, support wheel. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0026] See also Figure 1 - Fig. 9 The present invention provides a PFA pipeline with antistatic function, including a base 11 and an ultrapure tube 13. At least two conductive strips 12 are fixedly installed on the surface of the ultrapure tube 13. The ultrapure tube 13 is ultrapure PFA. The conductive strips 12 are conductive PFA. The conductive strips 12 are a very thin layer fixed on the outside of the ultrapure tube 13. The conductive strips 12 do not contact the liquid and will not pollute the liquid. The ultrapure tube 13 is ultrapure PFA, which will not precipitate metal ions and will not fall off particles, thereby ensuring that no type of pollution is caused to the liquid. Two first fixed frames 14 are fixedly installed on the top of the base 11. The side end of each first fixed frame 14 is fixedly installed with a second fixed frame 15. The side end of each second fixed frame 15 is slidably installed with a connecting seat 21. The side end of each connecting seat 21 is rotatably installed with an elimination rod 28. The side end of each elimination rod 28 is fixedly installed with a friction sleeve 29. Two docking frames 34 are fixedly installed on the side end of each connecting seat 21, and a fixed pipe 31 is fixedly installed on the side end of each docking frame 34. A mounting block 32 is installed on the side end of the connecting seat 21, and a joint 33 is installed on the top of the mounting block 32. The joint 33 guides the airflow into the interior of the mounting block 32 through a pipeline. At the same time, a closed sleeve 35 is provided at the side end of the mounting block 32, and the two ends of the closed sleeve 35 are respectively connected to the mounting block 32 and the docking frame 34. Two fixed pipes 31 are installed on the side end of the docking frame 34. A plurality of nozzles are provided at the side end of the fixed pipe 31. The airflow is blown onto the surface of the ultrapure tube 13 through the nozzles to clean the dust accumulated on the surface of the ultrapure tube 13. The reciprocating sliding of the closed sleeve 35 allows the nozzle on one side of the fixed pipe 31 to intermittently blow out airflow, which can clean the ultrapure tube 13. At the same time, the air supply is stopped when the airflow is not needed, thereby significantly reducing energy consumption.

[0027] A reset plate 36 is slidably installed on the side end of each connecting seat 21, a spring rod 37 is fixedly installed on the side end of each reset plate 36, a positioning plate 38 is fixedly installed on the side end of each reset plate 36, and a closing sleeve 35 is slidably installed on the side end of each docking frame 34. The rotating friction sleeve 29 squeezes the top of the friction positioning plate 38, pushing the reset plate 36 to slide back and forth on the side end of the connecting seat 21. At the same time, the reset plate 36 is connected to the two closing sleeves 35, driving the closing sleeve 35 to slide back and forth on the side end of the docking frame 34. A closing plate is installed inside the closing sleeve 35 to block the inside of the docking frame 34. A mounting block 32 is fixedly installed on the side end of each connecting seat 21, and a joint 33 is fixedly installed on the top of each mounting block 32. A gear ring 26 is rotatably installed on the top of each second fixed frame 15, and a second push rod 27 is rotatably installed on the top of each gear ring 26. The closing sleeve 35 The two ends are segmented and can be stretched. The end of the second push rod 27 is rotatably connected to the top of the connecting seat 21, and the second push rod 27 is installed on the outer ring of the gear ring 26. The top of the second push rod 27 makes a circular motion around the center of the gear ring 26. An elimination rod 28 is rotatably installed at the side end of the connecting seat 21. The elimination rod 28 is connected in series with the power supply inside the base 11 through a wiring harness. The elimination rod 28 usually uses a high-voltage power supply to generate corona discharge. Under the action of the high-voltage electric field, the air is ionized to generate a large number of positive ions and negative ions. The surface of the ultrapure tube 13 carries static electricity, and the distance between the elimination rod 28 and the ultrapure tube 13 becomes smaller. At the same time, the two deflection wheels can be installed at an angle to each other and rotate in opposite directions. The deflection wheel contacts the ultrapure tube 13. The two deflection wheels drive the ultrapure tube 13 to rotate at the top of the support wheel 39. The ultrapure tube 13 rotates and moves between the two elimination rods 28, which is convenient for the elimination rod 28 to comprehensively remove the static electricity on the surface of the ultrapure tube 13.

[0028] A hydraulic rod 22 is fixedly installed on the top of each first fixed frame 14, and the same top plate 16 is fixedly installed on the top of the two hydraulic rods 22. A limit plate 17 is fixedly installed on the bottom end of the top plate 16. The hydraulic rod 22 is compressed at the top of the first fixed frame 14 by reversing the extension and contraction of the hydraulic rod 22. The hydraulic rod 22 drives the top plate 16 to move downward, and the top plate 16 drives the limit plate 17 to first squeeze and limit the surface of the ultrapure tube 13. Two first push rods 23 are rotatably installed on the side end of the top plate 16. A guide slide 24 is slidably installed on the top of each first fixed frame 14. A rack 25 is fixedly installed on the side end of each guide slide 24. A rack 25 is installed on the side end of the guide slide 24. The side end of the rack 25 has a tooth design, and the side end of the rack 25 is mutually engaged with the surface of the gear ring 26. The meshing and moving rack 25 pushes the gear ring 26 to rotate at the top of the second fixed frame 15. At the same time, a second push rod 27 is rotatably installed on the top of the rack 25. The top of the second push rod 27 is installed on the outer ring of the gear ring 26 and makes a circular motion around the gear ring 26. The end of the second push rod 27 is rotatably connected to the connecting seat 21. The deflected second push rod 27 pulls the connecting seat 21 to allow the connecting seat 21 to slide on the side end of the second fixed frame 15, thereby expanding the distance between the two connecting seats 21. An electrostatic detector 18 is fixedly installed on the side end of each connecting seat 21, and at least two probes 19 are fixedly installed on the side end of each electrostatic detector 18. At least two support wheels 39 are rotatably installed on the top of the base 11. Two deflection wheels are provided on the top of the base 11, and the two deflection wheels are installed at an inclined angle.

[0029] Working principle:

[0030] In the first step, the ultrapure tube 13 is ultrapure PFA, the conductive strip 12 is conductive PFA, the conductive strip 12 is a very thin layer fixed on the outside of the ultrapure tube 13, the conductive strip 12 does not contact the liquid and will not pollute the liquid. The ultrapure tube 13 is ultrapure PFA, will not precipitate metal ions, and will not fall off particles, thereby ensuring that no type of pollution is caused to the liquid. A driving motor and a power supply are installed inside the base 11. The power supply is connected to the connecting seat 21 through a wiring harness. By driving two hydraulic rods 22, the hydraulic rods 22 are extended and retracted at the top of the first fixed frame 14. The hydraulic rods 22 generate an upward thrust on the top plate 16. The side end of the guide slide 24 is rotated and connected, pulling the guide slide 24 to the top of the first fixed frame 14. The guide slide plate 24 slides flatly, and a rack 25 is installed on the side end of the guide slide plate 24. The side end of the rack 25 has a tooth design, and the side end of the rack 25 meshes with the surface of the gear ring 26. The moving rack 25 pushes the gear ring 26 to rotate at the top end of the second fixed frame 15. At the same time, a second push rod 27 is rotatably installed on the top end of the rack 25. The top end of the second push rod 27 is installed on the outer ring of the gear ring 26 and makes a circular motion around the gear ring 26. The end of the second push rod 27 is rotatably connected to the connecting seat 21. The deflected second push rod 27 pulls the connecting seat 21, allowing the connecting seat 21 to slide on the side end of the second fixed frame 15, thereby expanding the distance between the two connecting seats 21, and placing the ultrapure tube 13 on the top end of the base 11 by moving the ultrapure tube 13.

[0031] In the second step, the hydraulic rod 22 is retracted in the reverse direction to compress the hydraulic rod 22 at the top end of the first fixed frame 14, and the hydraulic rod 22 drives the top plate 16 to move downward. The top plate 16 drives the limit plate 17 to first squeeze and limit the surface of the ultrapure tube 13, and at the same time, the top plate 16 squeezes the top end of the first push rod 23, forcing the first push rod 23 to tilt at the top end of the first fixed frame 14, and applies a thrust to the guide slide 24. The guide slide 24 slides horizontally toward the side end of the gear ring 26. The guide slide 24 drives the rack 25 to move, driving the gear ring 26 to rotate in the opposite direction, pushing the end of the second push rod 27. After the second push rod 27 is deflected, a thrust is applied to the connecting seat 21 to slide the side end of the second fixed frame 15, and the two connecting rods are adjusted. The spacing of the connecting seat 21 allows the connecting seat 21 to drive the elimination rod 28 at the side end to fit with the surface of the ultrapure tube 13. An electrostatic detector 18 is installed at the side end of the connecting seat 21. At least two probes 19 are installed at the side end of the electrostatic detector 18. Through the movement of the connecting seat 21, multiple probes 19 are moved toward the surface of the ultrapure tube 13, and the distance between the top of the probe 19 and the ultrapure tube 13 is shortened, but the ultrapure tube 13 and the probe 19 are not in contact. Due to electrostatic induction, induced charge will be generated in the probe 19. The probe 19 is usually a metal electrode, which forms a capacitor with the object to be measured. After the static electricity of the ultrapure tube 13 is eliminated by the elimination rod 28, the probe 19 is used to detect the static electricity on the surface of the ultrapure tube 13 to ensure the effect of static electricity removal.

[0032] At the side end of the connection base 21, the elimination rod 28 is closely connected to the power supply inside the base 11 through a set of wire harnesses. The elimination rod 28 will use the high-voltage power supply to generate corona discharge. Under the strong action of the high-voltage electric field, the surrounding air molecules are ionized, thereby generating a large number of positive ions and negative ions. These ions will move in a specific direction under the drive of the electric field. When the distance between the elimination rod 28 and the ultrapure tube 13 gradually decreases, the positive and negative ions generated by the elimination rod 28 will move to the surface of the ultrapure tube 13 under the action of the electric field. These ions react with the electrostatic charge on the surface of the ultrapure tube 13 to effectively eliminate the static electricity on the surface of the ultrapure tube 13. At the top of the base 11, a support wheel 39 and two deflection wheels are specially designed. The main function of the support wheel 39 is to provide necessary support for the ultrapure tube 13 so that it can move smoothly on the production line, and the two deflection wheels are installed in a mutually inclined manner and can rotate in the opposite direction. When the ultrapure tube 13 contacts the two deflection wheels, the deflection wheel will drive the ultrapure tube 13 to rotate at the top of the support wheel 39. In this way, the ultrapure tube 13 can be rotated and moved between the two elimination rods 28 , thereby ensuring that the elimination rods 28 can completely remove static electricity on the surface of the ultrapure tube 13 .

[0033] In the third step, a mounting block 32 is installed at the side end of the connecting seat 21, and a joint 33 is installed at the top of the mounting block 32. The joint 33 guides the airflow into the interior of the mounting block 32 through a pipeline. At the same time, a closing sleeve 35 is formed at the side end of the mounting block 32. The two ends of the closing sleeve 35 are respectively connected to the mounting block 32 and the docking frame 34. Two fixed pipes 31 are installed at the side end of the docking frame 34. A plurality of nozzles are provided at the side end of the fixed pipe 31. The airflow is blown to the surface of the ultrapure tube 13 through the nozzles to clean the dust accumulated on the surface of the ultrapure tube 13, so that the surface of the ultrapure tube 13 is cleaner and convenient for removing static electricity. At the same time, the elimination rod 28 is fitted with the ultrapure tube 13, and the rotating ultrapure tube 13 drives the elimination rod 28 to rotate. The eliminating rod 28 rotates, and the eliminating rod 28 drives the friction sleeve 29 on one side to rotate. The surface of the friction sleeve 29 is provided with an arc groove. The rotating friction sleeve 29 squeezes the top of the friction positioning plate 38, and pushes the reset plate 36 to slide back and forth on the side end of the connecting seat 21. At the same time, the reset plate 36 is connected to the two closing sleeves 35, driving the closing sleeve 35 to slide back and forth on the side end of the docking frame 34. A closing plate is installed inside the closing sleeve 35, which can block the inside of the docking frame 34. Through the reciprocating sliding of the closing sleeve 35, the nozzle on one side of the fixed tube 31 can intermittently blow out airflow, which can clean the ultrapure tube 13. At the same time, the air supply is stopped when the airflow is not needed, thereby significantly reducing energy consumption.

[0034] The examples of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and to design various embodiments with various modifications suitable for specific uses.

Claims

1. A PFA pipeline with antistatic function, comprising a base (11) and an ultrapure tube (13), characterized in that: At least two conductive strips (12) are fixedly mounted on the surface of the ultrapure tube (13); two first fixing frames (14) are fixedly mounted on the top of the base (11); a second fixing frame (15) is fixedly mounted on the side end of each of the first fixing frames (14); a connecting seat (21) is slidably mounted on the side end of each of the second fixing frames (15); an elimination rod (28) is rotatably mounted on the side end of each of the connecting seats (21); a friction sleeve (29) is fixedly mounted on the side end of each of the eliminating rods (28); two docking frames (34) are fixedly mounted on the side end of each of the connecting seats (21); and a fixed tube (31) is fixedly mounted on the side end of each of the docking frames (34).

2. A PFA pipeline with antistatic function as claimed in claim 1, characterized in that: A reset plate (36) is slidably mounted on the side end of each connection seat (21), a spring rod (37) is fixedly mounted on the side end of each reset plate (36), and a positioning plate (38) is fixedly mounted on the side end of each reset plate (36).

3. A PFA pipeline with antistatic function as claimed in claim 1, characterized in that: A closing sleeve (35) is slidably mounted on the side end of each docking frame (34); Wherein, the two ends of the closing sleeve (35) are designed in sections and can be stretched.

4. A PFA pipeline with antistatic function as claimed in claim 1, characterized in that: A mounting block (32) is fixedly mounted on the side end of each connection seat (21), and a joint (33) is fixedly mounted on the top end of each mounting block (32).

5. A PFA pipeline with antistatic function as claimed in claim 1, characterized in that: A gear ring (26) is rotatably mounted on the top of each second fixing frame (15), and a second push rod (27) is rotatably mounted on the top of each gear ring (26); The end of the second push rod (27) is rotatably connected to the top of the connecting seat (21), and the second push rod (27) is installed on the outer ring of the gear ring (26). The top of the second push rod (27) moves in a circle around the center of the gear ring (26).

6. A PFA pipeline with antistatic function as claimed in claim 1, characterized in that: A hydraulic rod (22) is fixedly mounted on the top of each of the first fixing frames (14), and a same top plate (16) is fixedly mounted on the tops of the two hydraulic rods (22).

7. A PFA pipeline with antistatic function as claimed in claim 6, characterized in that: A limiting plate (17) is fixedly mounted on the bottom end of the top plate (16), and two first push rods (23) are rotatably mounted on the side ends of the top plate (16).

8. A PFA pipeline with antistatic function as claimed in claim 1, characterized in that: A guide slide plate (24) is slidably mounted on the top end of each first fixing frame (14), and a rack (25) is fixedly mounted on the side end of each guide slide plate (24).

9. A PFA pipeline with antistatic function as claimed in claim 1, characterized in that: An electrostatic detector (18) is fixedly mounted on the side end of each connection seat (21), and at least two probes (19) are fixedly mounted on the side end of each electrostatic detector (18).

10. A PFA pipeline with antistatic function as claimed in claim 1, characterized in that: At least two support wheels (39) are rotatably mounted on the top of the base (11), and two deflection wheels are arranged on the top of the base (11), and the two deflection wheels are mounted at an inclined angle.

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