CN107504304B - FEP hose connector assembly for converter valve module - Google Patents
FEP hose connector assembly for converter valve module Download PDFInfo
- Publication number
- CN107504304B CN107504304B CN201710779890.4A CN201710779890A CN107504304B CN 107504304 B CN107504304 B CN 107504304B CN 201710779890 A CN201710779890 A CN 201710779890A CN 107504304 B CN107504304 B CN 107504304B
- Authority
- CN
- China
- Prior art keywords
- fep
- radiator
- hose
- fixing piece
- converter valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 claims description 6
- 239000004014 plasticizer Substances 0.000 claims description 6
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 3
- PYGXAGIECVVIOZ-UHFFFAOYSA-N Dibutyl decanedioate Chemical compound CCCCOC(=O)CCCCCCCCC(=O)OCCCC PYGXAGIECVVIOZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002033 PVDF binder Substances 0.000 claims description 3
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 claims description 3
- 229920001519 homopolymer Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 238000007789 sealing Methods 0.000 abstract description 9
- 229920001971 elastomer Polymers 0.000 abstract description 3
- 239000000306 component Substances 0.000 description 14
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 241000555293 Bassariscus astutus Species 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical group [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/02—Hose-clips
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/16—Homopolymers or copolymers or vinylidene fluoride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention provides an FEP hose joint assembly for a converter valve module, which comprises an FEP hose, a tubular radiator and a fixing piece, wherein the bottom wall of the tubular radiator is provided with an axial through hole, and the bottom wall of the radiator is provided with a tubular electrode coaxial with the through hole; the FEP hose is sleeved on the electrode; one end of the FEP hose, which is contacted with the bottom wall of the radiator, is provided with an annular boss; the fixing piece is arranged between the outer wall of the FEP hose and the inner wall of the radiator and used for fixing the FEP hose and the radiator; the front end of the fixing piece is propped against the outer side of the annular boss. The bottom wall of the radiator is provided with the tubular electrode, an annular boss is designed at one end of the FEP pipe, the end is inserted into the radiator, a gap between the tubular electrode and the FEP pipe is fixed through the fixing piece, and the front end of the fixing piece is abutted against the boss to realize fixation, so that the design is more flexible and convenient, fewer in parts, convenient to install and better in sealing property compared with the traditional FEP pipe joint; and the use of the rubber sealing ring is avoided, so that the water leakage and water seepage phenomena are avoided.
Description
Technical Field
The invention relates to a joint, in particular to an FEP hose joint assembly for a converter valve module.
Background
With the rapid growth of the power industry, the rapid development of the ultra-high voltage power grid is promoted by the continuous increase of the power grid capacity, the improvement of the requirements of safe and stable operation of the power grid and the like. The construction of a power grid which takes extra-high voltage as a backbone power grid and coordinates and develops all levels of power grids is a current development trend.
The water-cooling water distribution system of the converter valve used as the extra-high voltage direct current transmission and the flexible direct current transmission of the power transmission core component is an important auxiliary system for ensuring the high-efficiency and stable operation of the converter valve, wherein the operation stability of the water-cooling system component determines the operation stability of the whole system. The FEP hose and the connector thereof are terminal elements in a water distribution pipeline system of a converter valve water cooling system, the use amount of the FEP pipe connector is very large, and the operation safety and reliability of the FEP pipe connector are directly related to the safety of the whole water cooling system and even the whole power transmission line.
The existing converter valve joint of the FEP hose is hard sealed by self-extrusion deformation of the FEP hose, so that the manufactured clamping sleeve joint is difficult to realize high sealing, the water temperature of the water pipe joint is changed in the working process of the valve module, water seepage or water leakage is easy to occur, potential safety hazards exist, and the normal operation of the valve module is seriously influenced; and most of O-shaped sealing rings at the existing FEP joint positions are made of EPDM rubber materials, and in the working process of the converter valve, a plurality of groups of subunits are often required to be connected in series to form the whole converter valve due to high voltage level. The converter valve radiator is usually made of aluminum, al on the radiator is changed to Al 3++3e- under a certain voltage, and cooling water is ionized under a high voltage, so that Al 3++3OH-→Al(OH)3 forms sediment accumulation. The current density is higher near the bottom electrode of the heat sink because the electrode affects relatively less deposition. Ozone can be generated when the current density is high to a certain extent, and adjacent rubber O-shaped sealing rings are dissolved and corroded, so that water seepage and water leakage form hidden danger of short circuit in electrified equipment.
Disclosure of Invention
Aiming at the defects of the prior art, the inventor designs an FEP hose joint component for a converter valve module, wherein an annular convex block is designed at one end of an FEP pipe, the FEP hose joint component is inserted into a radiator, a gap between the FEP hose joint component and the FEP hose joint component is fixed through a fixing piece, the front end of the fixing piece is abutted against a boss to realize fixation, and compared with the traditional FEP pipe joint, the FEP hose joint component is more flexible and convenient, has fewer components, is convenient to install, has better sealing performance and avoids the phenomena of water leakage and water seepage; and the normal operation of the converter valve is ensured.
The invention aims at being realized by the following technical scheme:
The invention provides an FEP hose joint assembly for a converter valve module, which comprises an FEP hose, a tubular radiator with an axial through hole at the bottom wall and a fixing piece, wherein a tubular electrode coaxially arranged with the through hole is arranged at the bottom wall of the radiator; the FEP hose is sleeved on the electrode; an annular boss is arranged at one end, which is contacted with the bottom wall of the radiator, of the FEP hose; the fixing piece is arranged between the outer wall of the FEP hose and the inner wall of the radiator and used for fixing the FEP hose and the radiator; the front end of the fixing piece is propped against the outer side of the annular boss.
Preferably, the inner diameter of the electrode is equal to the inner diameter of the through hole; the outer diameter of the electrode is larger than the inner diameter of the FEP tube, and the difference value between the electrode and the FEP tube is 0.05-1 mm.
Preferably, the FEP hose is integrally formed with the annular boss of the hose.
Preferably, the fixing member includes three cylindrical parts having equal inner diameters in a direction from an open end to a bottom of the radiator: the outer diameter is smaller than the outer diameter of the radiator but is larger than the inner diameter of the radiator, the annular middle section and the conical frustum-shaped front section are smaller than the inner diameter of the radiator but are matched with the inner diameter of the radiator.
Preferably, the inner diameter of the fixing member is smaller than the outer diameter of the FEP tube; the difference value between the inner diameter of the fixing piece and the outer diameter of the FEP pipe ranges from 0.5 mm to 1mm.
Preferably, the annular middle section is provided with circumferential external threads.
Preferably, the inner wall of the radiator is provided with internal threads matched with the external threads of the annular middle section.
Preferably, the bottom of the inner wall of the radiator is provided with an inward annular bulge; the bulge is provided with oblique line chamfer angles matched with the conical frustum-shaped front section of the fixing piece.
Preferably, the truncated cone-shaped front section of the fixing member abuts against the oblique chamfer of the protrusion so as to compress the FEP for deformation to realize sealing when the fixing member moves axially.
Preferably, the outer wall of the electrode is provided with barbs inclined towards the bottom wall of the radiator.
Preferably, the FEP hose comprises the following components in percentage by mass:
Tetrafluoroethylene: 60-76%;
hexafluoropropylene: 14-25%;
Polyurethane: 10-25%.
Preferably, the fixing piece is prepared from the following components in percentage by mass:
polyvinylidene fluoride homopolymer: 62.5-83%;
copolymers of vinylidene fluoride and hexafluoroethylene: 15-33%;
and (3) a plasticizer: 2 to 4.5 percent.
Preferably, the mass ratio of the vinylidene fluoride to the hexafluoroethylene is 2.5:5.5.
Preferably, the plasticizer is one or more selected from dibutyl sebacate, dioctyl phthalate, and N- (N-butyl) sulfonamide.
Preferably, the radiator is made of the following components in mass fraction:
C:0.8 to 1.8 parts; n:2 to 2.5 parts of In:1.5 to 2 parts of Pd:0.12 to 0.15 part of Zr:0.4 to 0.8 part of Ir:0.8 to 1.5 parts of Rh:0.2 to 2 parts of Fe: 30-50 parts.
Compared with the closest prior art, the invention has the beneficial effects that:
1. According to the technical scheme provided by the invention, the tubular electrode is arranged on the bottom wall of the radiator, the annular boss is designed at one end of the FEP pipe, the end is inserted into the radiator, a gap between the tubular electrode and the annular boss is fixed through the fixing piece, and the front end of the fixing piece is abutted against the boss to realize fixation, so that the design is more flexible and convenient, fewer in parts and convenient to install and better in tightness compared with the traditional FEP pipe joint; the use of the rubber sealing ring is avoided, and the water leakage and water seepage phenomena are further avoided; and the normal operation of the converter valve is ensured.
2. According to the technical scheme provided by the invention, the inner diameter of the fixing piece is smaller than the outer diameter of the FEP pipe, so that the FEP pipe and the fixing piece are in interference fit in the installation process, and the tightness is improved.
3. According to the technical scheme provided by the invention, the barb design of the electrode can enable the fixation of the FEP hose and the electrode to be firmer and more reliable, and movement and leakage are avoided.
4. According to the technical scheme provided by the invention, the FEP hose material is improved to have certain toughness, and after extrusion, the inner wall of the hose can be restored to the initial state as much as possible, so that further guarantee is provided for the tightness.
5. According to the technical scheme provided by the invention, the material molecular structure of the fixing piece is relatively large in regularity, fluorine atoms and hydrogen atoms in molecules are similar in size, high molecular chains are closely arranged, and a relatively strong hydrogen bond effect exists, so that the tensile strength, the compressive strength, the impact toughness and the like of the polymer are relatively large; the melting point is lower (about 170 ℃), so that the processing performance is good and the molding is convenient; the chemical stability is good, the chemical corrosion resistance and the heat resistance stability are excellent, and the water-based paint can be used for a long time within the temperature range of minus 62 ℃ to 150 ℃; meanwhile, the electrolytic constant is large, so that the composite material is one of good insulating materials; can resist all mediums such as hydrochloric acid, salt, acid, alkali, aromatic hydrocarbon, halogen and the like except strong solvent, and is very suitable for water pipelines of high-voltage power systems.
6. According to the technical scheme provided by the invention, the radiator is made of materials which can ensure the fixation of other parts, has certain rigidity, can keep the shape, and greatly prolongs the service life of the radiator.
Drawings
The invention is further described below with reference to the accompanying drawings:
Fig. 1: the FEP pipe joint component provided by the invention is a sectional view;
wherein: 1-FEP hose, 2-fastener, 3-boss, 4-radiator, 5-through hole, 6-electrode.
Detailed Description
The technical solutions in the embodiments of the present application are clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.
As shown in fig. 1, the invention provides an FEP hose joint assembly for a converter valve module, which comprises an FEP hose 1, a tubular radiator 4 with an axial through hole 5 at the bottom wall and a fixing piece 2, wherein a tubular electrode 6 coaxial with the through hole 5 is arranged at the bottom wall of the radiator 4; the FEP hose 1 is sleeved on the electrode 6; an annular boss 3 is arranged at one end, which is contacted with the bottom wall of the radiator 4, of the FEP hose 1; the fixing piece 2 is arranged between the outer wall of the FEP hose 1 and the inner wall of the radiator 4 and is used for fixing the FEP hose 1 and the radiator 4; the front end of the fixing piece 2 is propped against the outer side of the annular boss 3.
The inner diameter of the electrode 6 is equal to the inner diameter of the through hole 5; the outer diameter of the electrode 6 is larger than the inner diameter of the FEP tube, and the difference value between the two is in the range of 0.05-1 mm.
The FEP hose 1 is integrally formed with an annular boss 3 of the hose.
The fixing member 2 includes three cylindrical portions having equal inner diameters in a direction from an open end to a bottom of the radiator 4: the outer diameter is smaller than the outer diameter of the radiator 4 but is larger than the ring tail section of the inner diameter of the radiator 4, the ring middle section and the cone frustum-shaped front section, wherein the outer diameter of the ring tail section is smaller than the inner diameter of the radiator 4 but is matched with the ring tail section.
The inner diameter of the fixing piece 2 is smaller than the outer diameter of the FEP pipe; the difference between the inner diameter of the fixing piece 2 and the outer diameter of the FEP pipe is in the range of 0.5-1 mm.
The annular middle section is provided with circumferential external threads.
The inner wall of the radiator 4 is provided with an internal thread matched with the external thread of the annular middle section.
The bottom of the inner wall of the radiator 4 is provided with an inward annular bulge; the bulge is provided with oblique line chamfer angles matched with the truncated cone-shaped front section of the fixing piece 2.
The truncated cone-shaped front section of the fixing piece 2 abuts against the oblique chamfer of the bulge so as to compress the FEP to deform when the fixing piece moves axially to realize sealing.
The outer wall of the electrode 6 is provided with barbs inclined towards the bottom wall of the radiator 4.
The FEP hose 1 comprises the following components in percentage by mass:
Tetrafluoroethylene: 60-76%;
hexafluoropropylene: 14-25%;
Polyurethane: 10-25%.
The fixing piece 2 is prepared from the following components in percentage by mass:
polyvinylidene fluoride homopolymer: 62.5-83%;
copolymers of vinylidene fluoride and hexafluoroethylene: 15-33%;
and (3) a plasticizer: 2 to 4.5 percent.
The mass ratio of the vinylidene fluoride to the hexafluoroethylene is 2.5:5.5.
The plasticizer is one or more selected from dibutyl sebacate, dioctyl phthalate and N- (N-butyl) sulfonamide.
The radiator 4 is prepared from the following components in percentage by mass:
C:0.8 to 1.8 parts; n:2 to 2.5 parts of In:1.5 to 2 parts of Pd:0.12 to 0.15 part of Zr:0.4 to 0.8 part of Ir:0.8 to 1.5 parts of Rh:0.2 to 2 parts of Fe: 30-50 parts.
Finally, it should be noted that: the described embodiments are intended to be illustrative of only some, but not all, of the embodiments of the present application and, based on the embodiments herein, all other embodiments that may be made by those skilled in the art without the benefit of the present disclosure are intended to be within the scope of the present application.
Claims (10)
1. The FEP hose joint assembly for the converter valve module comprises an FEP hose, a tubular radiator with an axial through hole at the bottom wall and a fixing piece, and is characterized in that a tubular electrode coaxially arranged with the through hole is arranged at the bottom wall of the radiator; the FEP hose is sleeved on the electrode; an annular boss is arranged at one end, which is contacted with the bottom wall of the radiator, of the FEP hose; the fixing piece is arranged between the outer wall of the FEP hose and the inner wall of the radiator and used for fixing the FEP hose and the radiator; the front end of the fixing piece is propped against the outer side of the annular boss;
The fixing piece comprises three cylindrical parts with equal inner diameters in the direction from the opening end of the radiator to the bottom: the outer diameter of the annular tail section is smaller than the outer diameter of the radiator but larger than the inner diameter of the radiator, the annular middle section and the conical frustum-shaped front section are smaller than the inner diameter of the radiator but matched with the inner diameter of the radiator;
The bottom of the inner wall of the radiator is provided with an inward annular bulge; the bulge is provided with an oblique line chamfer matched with the truncated cone-shaped front section of the fixing piece;
the fixing piece is prepared from the following components in percentage by mass:
polyvinylidene fluoride homopolymer: 62.5-83%;
copolymers of vinylidene fluoride and hexafluoroethylene: 15-33%;
And (3) a plasticizer: 2 to 4.5 percent;
the mass ratio of the vinylidene fluoride to the hexafluoroethylene is 2.5:5.5;
The plasticizer is one or more selected from dibutyl sebacate, dioctyl phthalate and N- (N-butyl) sulfonamide.
2. The FEP hose joint assembly for a converter valve module according to claim 1, wherein an inner diameter of said electrode is equal to an inner diameter of said through hole; the outer diameter of the electrode is larger than the inner diameter of the FEP tube, and the difference value between the electrode and the FEP tube is 0.05-1 mm.
3. The FEP hose joint assembly for a converter valve module of claim 1, wherein said FEP hose is integrally formed with an annular boss of the hose.
4. The FEP hose joint assembly for a converter valve module according to claim 1, wherein said fixture has an inner diameter smaller than an outer diameter of said FEP tube; the difference value between the inner diameter of the fixing piece and the outer diameter of the FEP pipe ranges from 0.5 mm to 1mm.
5. The FEP hose coupling assembly for a converter valve module according to claim 1, wherein said annular midsection is provided with circumferential external threads.
6. The FEP hose coupling assembly for a converter valve module according to claim 5, wherein an inner wall of said heat sink is provided with internal threads matching external threads of said annular midsection.
7. The FEP hose coupling assembly for a converter valve module according to claim 1, wherein said frustoconical front section of said anchor abuts said raised diagonal chamfer so as to compress said FEP against deformation to effect a seal when said anchor is moved axially.
8. The FEP hose connector assembly for a converter valve module according to claim 1, wherein said outer wall of said electrode is provided with barbs sloping toward said bottom wall of said heat sink.
9. The FEP hose joint assembly for a converter valve module of claim 1, wherein said FEP hose comprises the following components in mass percent:
Tetrafluoroethylene: 60-76%;
hexafluoropropylene: 14-25%;
Polyurethane: 10-25%.
10. The FEP hose joint assembly for a converter valve module according to claim 1, wherein said radiator is made of the following components in mass fraction:
C:0.8 to 1.8 parts; n:2 to 2.5 parts of In:1.5 to 2 parts of Pd:0.12 to 0.15 part of Zr:0.4 to 0.8 part of Ir:0.8 to 1.5 parts of Rh:0.2 to 2 parts of Fe: 30-50 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710779890.4A CN107504304B (en) | 2017-09-01 | 2017-09-01 | FEP hose connector assembly for converter valve module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710779890.4A CN107504304B (en) | 2017-09-01 | 2017-09-01 | FEP hose connector assembly for converter valve module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107504304A CN107504304A (en) | 2017-12-22 |
| CN107504304B true CN107504304B (en) | 2024-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710779890.4A Active CN107504304B (en) | 2017-09-01 | 2017-09-01 | FEP hose connector assembly for converter valve module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107504304B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103569307A (en) * | 2012-08-03 | 2014-02-12 | 株式会社岛野 | Hydraulic bicycle component system |
| CN205605918U (en) * | 2016-04-26 | 2016-09-28 | 全球能源互联网研究院 | Direct current change of current valve cooling water route corrosion protection prevents leaking device |
| CN207584236U (en) * | 2017-09-01 | 2018-07-06 | 全球能源互联网研究院 | A kind of change current valve module FEP hose joint assemblies |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN107504304A (en) | 2017-12-22 |
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