PFA (Polyfluoroalkoxy) pipeline for conducting static electricity

Abstract

The invention provides a static electricity conduction PFA pipeline, and relates to the technical field of PFA pipelines, the static electricity conduction PFA pipeline comprises a large-size pipe and a small-size pipe, the outer surface layer of the large-size pipe is provided with at least two first conductive PFAs, the outer surface layer of the small-size pipe is provided with at least two second conductive PFAs, the large-size pipe and the small-size pipe are both in a transparent state, and the first conductive PFAs and the second conductive PFAs are in a transparent state. The large-size pipe and the first conductive PFA are integrally formed, the small-size pipe and the second conductive PFA are integrally formed, the large-size pipe and the small-size pipe are used for liquid diversion, the first conductive PFA and the second conductive PFA are used for static electricity export, and the strip-shaped conductive PFA is co-extruded on the outer layer of the transparent high-purity PFA to manufacture the large-size pipe and the small-size pipe, so that static electricity can be effectively conducted; the condition that conveyed flammable and explosive chemicals are ignited and detonated due to static electricity is avoided, accidents are reduced, the conductive PFA layer is very thin, the black part does not make contact with liquid, the conveyed liquid cannot be polluted, and the purity and quality of the chemicals are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of PFA pipes, and more specifically, particularly relates to a PFA pipe that conducts static electricity. Background Art

[0002] In the semiconductor photovoltaic industry and the display panel industry, the transportation of chemicals is crucial. However, traditional pipelines have many problems when used to transport flammable and explosive chemicals.

[0003] Common piping materials, such as ordinary PFA, are prone to generate static electricity during use, but lack an effective static electricity removal mechanism. Static electricity accumulation may cause ignition and explosion of flammable and explosive chemicals, resulting in serious safety accidents.

[0004] Moreover, some pipe materials may come into contact with the transported liquid, causing the liquid to be contaminated and affecting product quality and production processes.

[0005] At the same time, the manufacturing process of traditional pipes may cause depressions or protrusions on the surface, affecting the smooth flow of liquids. In addition, during long-term use, metal ions may be precipitated or particles may fall off due to material problems, causing contamination to the transported chemicals.

[0006] In summary, traditional conveying pipelines have shortcomings in terms of static electricity removal, pollution prevention and manufacturing processes, and cannot meet the high requirements of the semiconductor photovoltaic and display panel industries for the transportation of flammable and explosive chemicals. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides a PFA pipe that conducts static electricity to solve the above problems.

[0008] A PFA pipe for conducting static electricity comprises a large-sized pipe and a small-sized pipe, wherein the outer surface layer of the large-sized pipe is provided with at least two first conductive PFAs, and the outer surface layer of the small-sized pipe is provided with at least two second conductive PFAs, and the large-sized pipe and the small-sized pipe are both in a transparent state.

[0009] Preferably, the large-size tube and the first conductive PFA are integrally formed.

[0010] Preferably, the small-size tube and the second conductive PFA are integrally formed.

[0011] Preferably, the large-size tube and the small-size tube are used for liquid diversion, and the first conductive PFA and the second conductive PFA are used for static electricity diversion.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In the present invention, by co-extruding strip-shaped conductive PFA on the outer layer of transparent high-purity PFA to form large-sized tubes and small-sized tubes, static electricity can be effectively conducted to avoid ignition and detonation of inflammable and explosive chemicals being transported due to static electricity, thereby reducing the occurrence of accidents.

[0014] In the present invention, the conductive PFA layer is very thin and the black part does not contact the liquid, so it will not pollute the transported liquid, thereby ensuring the purity and quality of the chemicals.

[0015] In the present invention, the large-size tube, the small-size tube and the conductive PFA are all integrally formed, with no depressions or protrusions on the surface and a completely circular outer surface. The static electricity generated by the flow of the liquid can be promptly conducted away, and the liquid delivery will not be affected by the uneven surface, nor will the liquid be contaminated by material problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the large-size pipe structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the small-size tube structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the PFA production abrasive tool of the present invention.

[0019] In the figure, the correspondence between the component names and the figure numbers is: 1. core mold; 2. conductive adhesive extrusion auxiliary machine connecting parts; 3. flow channel closing sleeve; 4. diverter cone; 5. head body; 6. conical diverter sleeve; 7. wall thickness adjustment pressure ring; 8. die; 9. large size tube; 91. first conductive PFA; 92. small size tube; 93. second conductive PFA. DETAILED DESCRIPTION

[0020] The following embodiments of the present invention are described in further detail 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.

[0021] See also Figure 1-Figure 3The present invention provides a PFA pipe for conducting static electricity, including a large-sized tube 9 and a small-sized tube 92. The outer surface layer of the large-sized tube 9 is provided with at least two first conductive PFAs 91, and the outer surface layer of the small-sized tube 92 is provided with at least two second conductive PFAs 93. The large-sized tube 9 and the small-sized tube 92 are both transparent. The large-sized tube 9 and the first conductive PFA 91 are integrally formed, and the small-sized tube 92 and the second conductive PFA 93 are integrally formed. The large-sized tube 9 and the small-sized tube 92 are high-purity PFA and are transparent. The first conductive PFA 91 and the second conductive PFA 93 are black parts, and conductive materials are added to make conductive PFA. It is produced by production equipment, and the outer layer of the transparent PFA is a conductive strip of PFA. The small-sized tube is 4 black conductive PFA layers. The large-sized tube 9 and the small-sized tube 92 are used for liquid diversion, and the first conductive PFA 91 and the second conductive PFA 93 are used for static electricity diversion.

[0022] The mold for making the large-size tube 9 and the small-size tube 92 is composed of the following structures: a core mold 1, a conductive glue extrusion auxiliary machine connection 2, a flow channel closing sleeve 3, a diverter cone 4, a head body 5, a conical diverter sleeve 6, a wall thickness adjustment ring 7 and a die 8. The PFA main colloid compression section of the die head is co-extruded with the PFA conductive glue, which can well solve the following problems:

[0023] 1. The conductive adhesive can be fully plasticized, and the conductive filler (such as carbon black) can be further fully mixed with the PFA matrix.

[0024] 2. The PFA conductive adhesive flowing through the conical compression section has good surface finish and flatness after being extruded from the core mold 1 and cooled, which can further prevent the problem of conductive filler precipitation.

[0025] 3. The PFA main colloid and the PFA conductive glue are co-extruded and merged in the conical compression section. This can reduce the difficulty of controlling the temperature of the heating ring and avoid the problem of adjusting the flow channel closing sleeve 3 while adjusting the wall thickness of the tube molding product.

[0026] Working principle:

[0027] The first step is to transport flammable and explosive chemicals in the semiconductor photovoltaic industry and the display panel industry. The PFA material itself is prone to generate static electricity, and flammable and explosive chemicals are easily ignited and detonated by static electricity, causing accidents. The large-size tube 9 and the small-size tube 92 are high-purity PFA, and are transparent. The first conductive PFA 91 and the second conductive PFA 93 are black parts, and conductive materials are added to make conductive PFA. Produced by production equipment, the outer layer of transparent PFA is a conductive PFA with a strip of conductive PFA. The small-size tube is 4 black conductive PFA layers, and the large-size tube is 8 conductive layers.

[0028] In the second step, the first conductive PFA 91 and the second conductive PFA 93 are formed as a thin layer outside the large-size tube 9 and the small-size tube 92, and the black part does not contact the liquid and will not pollute the liquid.

[0029] The large-size tube 9 and the first conductive PFA 91 are ultra-pure PFA, which will not precipitate metal ions and will not shed particles, thereby ensuring that no type of contamination is caused to the liquid.

[0030] In the third step, the large-size tube 9 and the small-size tube 92, the first conductive PFA 91 and the second conductive PFA 93 are all integrally formed, so there is no concave or convex state on the surface of the large-size tube 9 and the small-size tube 92, the first conductive PFA 91 and the second conductive PFA 93, and the outer surfaces of the large-size tube 9 and the small-size tube 92, the first conductive PFA 91 and the second conductive PFA 93 are completely circular. The liquid flows inside the large-size tube 9 and the first conductive PFA 91, and friction is generated between the liquid and the large-size tube 9 and the first conductive PFA 91, which generates static electricity. The small-size tube 92 and the second conductive PFA 93 can conduct the static electricity away.

[0031] The embodiments 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 thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A PFA pipe for conducting static electricity, comprising a large-size pipe (9) and a small-size pipe (92), characterized in that: The outer surface layer of the large-size tube (9) is provided with at least two first conductive PFAs (91), and the outer surface layer of the small-size tube (92) is provided with at least two second conductive PFAs (93). Both the large-size tube (9) and the small-size tube (92) are in a transparent state.

2. A PFA pipe for conducting static electricity as claimed in claim 1, characterized in that: The large-size tube (9) and the first conductive PFA (91) are integrally formed.

3. A PFA pipe for conducting static electricity as claimed in claim 1, characterized in that: The small-size tube (92) and the second conductive PFA (93) are integrally formed.

4. The electrostatically conductive PFA pipe according to claim 1, characterized in that: The large-size tube (9) and the small-size tube (92) are used for liquid diversion.

5. The electrostatically conductive PFA pipe according to claim 1, characterized in that: The first conductive PFA (91) and the second conductive PFA (93) are used for dissipating static electricity.

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