CN113456939A - Preparation method of PE (polyethylene) folded filter element material and filtering device thereof - Google Patents
Preparation method of PE (polyethylene) folded filter element material and filtering device thereof Download PDFInfo
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- CN113456939A CN113456939A CN202110759373.7A CN202110759373A CN113456939A CN 113456939 A CN113456939 A CN 113456939A CN 202110759373 A CN202110759373 A CN 202110759373A CN 113456939 A CN113456939 A CN 113456939A
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- 239000000463 material Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000004698 Polyethylene Substances 0.000 title abstract description 25
- 238000001914 filtration Methods 0.000 title abstract description 9
- -1 polyethylene Polymers 0.000 title abstract description 7
- 229920000573 polyethylene Polymers 0.000 title abstract description 7
- 238000002347 injection Methods 0.000 claims abstract description 74
- 239000007924 injection Substances 0.000 claims abstract description 74
- 239000007788 liquid Substances 0.000 claims description 42
- 238000007789 sealing Methods 0.000 claims description 16
- 238000007664 blowing Methods 0.000 claims description 12
- 229920005594 polymer fiber Polymers 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000001802 infusion Methods 0.000 abstract description 11
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/105—Multi-channel connectors or couplings, e.g. for connecting multi-lumen tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
- A61M2005/1652—Filter with duct, e.g. filtering element incorporated in a flow line, tube, duct
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Vascular Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pulmonology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to the field of filtering equipment, and discloses a preparation method of a PE (polyethylene) folding filter element material and a filtering device thereof. Injection shell and shell sliding connection, the needle body communicates with the injection shell, make the injection shell can slide and take in the shell with the needle body relative to the shell, the snap ring rotates with the shell to be connected, position through the card post restriction injection shell on the snap ring, the card post will inject shell and shell fixed when the infusion, when extracting the needle body, it makes the card post be close to the draw-in groove and allow the card post to slide in the draw-in groove to rotate the snap ring, make the injection shell slide, spring and shell fixed connection, the spring can drive the injection shell and withdraw in the shell, thereby draw in the needle body in the shell, avoid injuring medical personnel.
Description
Technical Field
The invention relates to the field of filtering equipment, in particular to a preparation method of a PE (polyethylene) folded filter element material and a filtering device thereof.
Background
With the improvement of living standard of people, the indwelling needle with less damage to blood vessels is widely applied to clinic. However, the puncture needle in the process of infusion operation is separated from the indwelling needle after the puncture is finished and the needle tip is easy to stab medical care personnel or other personnel, so that the medical care personnel are injured and cross-infected.
Disclosure of Invention
The invention aims to provide a preparation method of a PE (polyethylene) folded filter element material and a filtering device thereof, and aims to solve the problem that medical workers are easily injured after an existing indwelling needle is taken out.
In order to achieve the above objects, in a first aspect, the present invention provides a filtration apparatus made of PE folded filter element material, comprising a needle assembly, a conduit and a liquid injection joint assembly, wherein the liquid injection joint assembly comprises a liquid inlet joint, a folded filter element, a sealing plug and a three-way pipe, the folded filter element is fixedly connected with the three-way pipe and is located in the three-way pipe, the liquid inlet joint is connected with the three-way pipe and is located at a side close to the folded filter element, the sealing plug is detachably connected with the liquid inlet joint and is located at a side of the liquid inlet joint, the conduit is communicated with the three-way pipe and is located at a side of the three-way pipe, the needle assembly comprises a housing, a needle body, an injection housing, a snap ring and a spring, the housing has a first through hole and a first groove, the first groove is located at a side of the first through hole, the injection housing has a snap groove, the injection shell with shell sliding connection to be located in the first through-hole, the needle body with the injection shell intercommunication, and be located one side of injection shell, the snap ring has the card post, the snap ring with the shell rotates to be connected, the card post is located in the draw-in groove, the spring with shell fixed connection, and be located the shell with between the injection shell.
The liquid injection joint assembly further comprises a flow stopping clamp, and the flow stopping clamp is connected with the guide pipe in a sliding mode and located on one side of the guide pipe.
The flow of the liquid in the infusion tube can be controlled by the flow stopping clamp.
The liquid injection joint assembly further comprises a fixing belt, and the fixing belt is rotatably connected with the catheter and wound on the catheter.
The fixing band can rotate to be opened, then is fixed with the staff, avoids pasting the sticky tape outward again for it is more convenient to fix.
The liquid injection joint assembly further comprises an information sticker, wherein the information sticker is fixedly connected with the fixing belt and is located on one side of the fixing belt.
Infusion information can be written on the information sticker, and therefore a nurse can conveniently check the infusion information.
The needle assembly further comprises a handle, and the handle is fixedly connected with the injection shell and penetrates through the first groove.
The injection shell can be more conveniently moved through the handle, and meanwhile, the handle can be used for pushing the needle body to enter a human body.
The handle is provided with anti-skid grains, and the anti-skid grains are distributed on the handle.
The friction force between the handle and the human body can be increased through the anti-slip lines, so that the holding is more stable.
The needle assembly further comprises a friction ring, and the friction ring is fixedly connected with the clamping ring and is positioned between the clamping ring and the shell.
The friction ring is used for increasing the snap ring is relative the shell pivoted resistance avoids the snap ring is too loose and the mistake touches under daily state and opens.
In a second aspect, the present invention provides a method for preparing a PE pleated filter element material, comprising:
arranging a folding filter element on a core pipe, enabling the folding filter element to reciprocate with the core pipe at an axial speed of 30-60 m/min and rotate at a radial speed of 2-4 m/min, enabling a polymer to form polymer fibers with the diameter of 2-10 mu m through a melt-blowing device of an extruder, spraying the polymer fibers on the surface of the folding filter element, and melt-blowing the polymer fibers to the folds of the folding filter element to fill a first melt-blowing layer to form a filter element body;
the filter element body reciprocates with the core tube at an axial speed of 20-30 m/min and rotates at a radial speed of 15-40 m/min, and polymer fibers with the diameter of 0.5-10 mu m formed by a polymer are sprayed on the outer surface of the filter element body through a melt-blowing device of an extruder to form a second melt-blown layer;
and melting and spraying the second melt-spraying layer again on the surface of the second melt-spraying layer.
According to the preparation method of the PE folding filter element material and the filtering device thereof, the folding filter element is fixedly connected with the three-way pipe and is positioned in the three-way pipe, large granular substances in liquid can be filtered through the folding filter element to avoid entering a blocking needle body, the liquid inlet joint is connected with the three-way pipe and is positioned at one side close to the folding filter element, the liquid inlet joint can be communicated with an external liquid conveying pipe so as to convey the three-way pipe, the sealing plug is detachably connected with the liquid inlet joint and is positioned at one side of the liquid inlet joint, when the PE folding filter element material is not used, the liquid inlet joint can be sealed through the sealing plug, the guide pipe is communicated with the three-way pipe and is positioned at one side of the three-way pipe, and the liquid can be output through the guide pipe. The needle head component comprises a shell, a needle body, an injection shell, a clamping ring and a spring, wherein the shell is provided with a first through hole and a first groove, the first groove is positioned at one side of the first through hole, the injection shell is provided with a clamping groove, the injection shell is in sliding connection with the shell and positioned in the first through hole, the needle body is communicated with the injection shell and positioned at one side of the injection shell, so that the injection shell can slide relative to the shell to take the needle body into the shell, the clamping ring is provided with a clamping column, the clamping ring is in rotating connection with the shell, the clamping column is positioned in the clamping groove, the position of the injection shell can be limited through the clamping column on the clamping ring, the clamping column can fix the injection shell and the shell during infusion, when the clamping ring is pulled out, the clamping ring can be rotated to enable the clamping column to be close to the clamping groove and allow the clamping column to be in the inner sliding clamping groove, the injection shell slides, the spring is fixedly connected with the shell and is positioned between the shell and the injection shell, and the spring can drive the injection shell to retract into the shell, so that the injection shell is more convenient to use. Can during the use the needle body is followed the shell is released, then rotates the snap ring makes the card post leaves the draw-in groove makes the injection shell is relative the shell is fixed, after getting the needle, rotates the snap ring makes the card post gets into the draw-in groove, thereby will under the spring action the injection shell with the needle body is drawn in the shell, avoids injury medical personnel, thereby solves current keep somewhere the needle and injure medical personnel's problem after taking out easily.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of a PE pleated filter element material filter assembly of the present invention;
FIG. 2 is a left side view of the filter assembly of the present invention showing a PE pleated filter element material;
FIG. 3 is a top view of a PE pleated filter element material filter assembly of the present invention;
FIG. 4 is a schematic cross-sectional view of a PE pleated filter element material filter apparatus of the present invention;
FIG. 5 is a schematic cross-sectional view of the needle assembly of the present invention;
fig. 6 is a flow chart of a method of making a PE pleated filter element material of the present invention.
1-needle component, 2-catheter, 3-liquid injection joint component, 11-shell, 12-needle body, 13-injection shell, 14-snap ring, 15-spring, 16-handle, 17-friction ring, 18-baffle cover, 19-elastic pull wire, 20-sealing plate, 21-sliding plate, 31-liquid inlet joint, 32-folding filter element, 33-sealing plug, 34-three-way pipe, 35-flow stopping clamp, 36-fixing band, 37-information paste, 111-first through hole, 112-first groove, 131-snap groove, 141-snap column and 161-anti-slip pattern.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 5, in a first aspect, the present invention provides a filter device made of PE folded filter element material:
the injection needle comprises a needle head component 1, a conduit 2 and an injection joint component 3, wherein the injection joint component 3 comprises a liquid inlet joint 31, a folding filter element 32, a sealing plug 33 and a three-way pipe 34, the folding filter element 32 is fixedly connected with the three-way pipe 34 and is positioned in the three-way pipe 34, the liquid inlet joint 31 is connected with the three-way pipe 34 and is positioned at one side close to the folding filter element 32, the sealing plug 33 is detachably connected with the liquid inlet joint 31 and is positioned at one side of the liquid inlet joint 31, the conduit 2 is communicated with the three-way pipe 34 and is positioned at one side of the three-way pipe 34, the needle head component 1 comprises a shell 11, a needle body 12, an injection shell 13, a clamping ring 14 and a spring 15, the shell 11 is provided with a first through hole 111 and a first groove 112, the first groove 112 is positioned at one side of the first through hole 111, the injection shell 13 is provided with a clamping groove 131, the injection shell 13 is slidably connected with the shell 11 and is positioned in the first through hole 111, the needle body 12 is communicated with the injection shell 13 and is positioned on one side of the injection shell 13, the clamping ring 14 is provided with a clamping column 141, the clamping ring 14 is rotatably connected with the shell 11, the clamping column 141 is positioned in the clamping groove 131, and the spring 15 is fixedly connected with the shell 11 and is positioned between the shell 11 and the injection shell 13.
In this embodiment, the folding filter element 32 is fixedly connected to the three-way pipe 34 and located in the three-way pipe 34, the folding filter element 32 can filter large particulate matters in the liquid to prevent the large particulate matters from entering the blocking needle body 12, the liquid inlet joint 31 is connected to the three-way pipe 34 and located at a side close to the folding filter element 32, the liquid inlet joint 31 can be communicated with an external infusion tube to infuse the three-way pipe 34, the sealing plug 33 is detachably connected to the liquid inlet joint 31 and located at a side of the liquid inlet joint 31, when the folding filter element is not in use, the liquid inlet joint 31 can be sealed by the sealing plug 33, the catheter 2 is communicated with the three-way pipe 34 and located at a side of the three-way pipe 34, and the liquid can be output through the catheter 2. The needle set 1 comprises a housing 11, a needle 12, an injection shell 13, a snap ring 14 and a spring 15, wherein the housing 11 has a first through hole 111 and a first groove 112, the first groove 112 is located at one side of the first through hole 111, the injection shell 13 has a snap groove 131, the injection shell 13 is slidably connected with the housing 11 and is located in the first through hole 111, the needle 12 is communicated with the injection shell 13 and is located at one side of the injection shell 13, so that the injection shell 13 can slide relative to the housing 11 to accommodate the needle 12 in the housing 11, the snap ring 14 has a snap post 141, the snap ring 14 is rotatably connected with the housing 11, the snap post 141 is located in the snap groove 131, the position of the injection shell 13 can be limited by the snap post 141 on the snap ring 14, so that the snap post 141 fixes the injection shell 13 and the housing 11 during infusion, when the needle body 12 is pulled out, the snap ring 14 can be rotated to enable the clamping column 141 to be close to the clamping groove 131 and to allow the clamping column 141 to slide in the clamping groove 131, so that the injection shell 13 slides, the spring 15 is fixedly connected with the shell 11 and is positioned between the shell 11 and the injection shell 13, and the spring 15 can drive the injection shell 13 to be retracted into the shell 11, so that the use is more convenient. When the needle indwelling needle is used, the needle body 12 can be pushed out of the shell 11, then the clamping ring 14 is rotated to enable the clamping column 141 to leave the clamping groove 131, the injection shell 13 is fixed relative to the shell 11, after a needle is taken out, the clamping ring 14 is rotated to enable the clamping column 141 to enter the clamping groove 131, so that the injection shell 13 and the needle body 12 are pulled into the shell 11 under the action of the spring 15, the injury to medical personnel is avoided, and the problem that the medical personnel are easily injured after the existing indwelling needle is taken out is solved.
Further, the liquid injection joint assembly 3 further comprises a flow stopping clip 35, wherein the flow stopping clip 35 is slidably connected with the conduit 2 and is positioned on one side of the conduit 2; the liquid injection joint component 3 further comprises a fixing belt 36, and the fixing belt 36 is rotatably connected with the catheter 2 and wound on the catheter 2; annotate liquid joint Assembly 3 still includes information subsides 37, information subsides 37 with fixed band 36 fixed connection to be located one side of fixed band 36.
In this embodiment, the flow of the liquid in the infusion tube can be controlled by the flow stop clip 35. The fixing band 36 can be rotated to open and then fixed with the human hand, so that the phenomenon that an adhesive tape is attached to the outside is avoided, and the fixing is more convenient. Infusion information can be written on the information sticker 37, so that a nurse can conveniently check the infusion information.
Further, the needle assembly 1 further comprises a handle 16, the handle 16 is fixedly connected with the injection shell 13 and passes through the first groove 112; the handle 16 is provided with anti-skid lines 161, and the anti-skid lines 161 are distributed on the handle 16; the needle assembly 1 further comprises a friction ring 17, wherein the friction ring 17 is fixedly connected with the snap ring 14 and is positioned between the snap ring 14 and the housing 11.
In this embodiment, the injection housing 13 can be moved more easily by the handle 16, while the handle 16 can be used to push the needle body 12 into the body. The friction between the handle 16 and the human body can be increased by the anti-slip lines 161, so that the grip is more stable. The friction ring 17 is used for increasing the resistance of the snap ring 14 to rotate relative to the shell 11, and the snap ring 14 is prevented from being loosened too much and being opened by mistake in a daily state.
Further, the needle assembly 1 further comprises a cover 18 and an elastic pull wire 19, the cover 18 is rotatably connected with the housing 11 and covers the first through hole 111, and the elastic pull wire 19 is fixedly connected with the cover 18 and the housing 11 and is located between the cover 18 and the housing 11; the needle assembly 1 further comprises a sealing plate 20 and a sliding plate 21, the sealing plate 20 is fixedly connected with the outer housing 11 and is located in the first groove 112, and the sliding plate 21 is slidably connected with the sealing plate 20 and is fixedly connected with the injection housing 13.
In this embodiment, the front end of the housing 11 can be closed by the blocking cover 18, and the elastic pulling wire 19 can pull the blocking cover 18 to close the housing 11 after the needle 12 enters the housing 11, so that the use is more convenient. The sealing plate 20 and the sliding plate 21 are used to seal a gap slidably generated between the injection housing 13 and the outer housing 11, so as to prevent foreign materials from entering from the gap and contaminating the needle body 12.
In a second aspect, referring to fig. 6, the present invention further provides a method for preparing a PE folded filter element material, including:
s101, arranging a folding filter element 32 on a core pipe, enabling the folding filter element 32 to reciprocate with the core pipe at an axial speed of 30-60 m/min and rotate at a radial speed of 2-4 m/min, enabling a polymer to form polymer fibers with the diameter of 2-10 mu m through a melt-blowing device of an extruder, spraying the polymer fibers on the surface of the folding filter element 32, and melt-blowing the polymer fibers until folds of the folding filter element 32 are filled with a first melt-blowing layer to form a filter element body;
wherein the polymer is a PE material. PE is polyethylene, a thermoplastic resin obtained by polymerizing ethylene. In industry, copolymers of ethylene with small amounts of alpha-olefins are also included. The polyethylene is odorless and nontoxic, feels like wax, has excellent low-temperature resistance (the lowest use temperature can reach-100 to-70 ℃), has good chemical stability, and can resist corrosion of most of acid and alkali (cannot resist acid with oxidation property). Is insoluble in common solvents at room temperature, has low water absorption and excellent electrical insulation.
S102, enabling the filter element body to reciprocate with the core tube at an axial speed of 20-30 m/min and rotate at a radial speed of 15-40 m/min, and enabling a polymer to form polymer fibers with diameters of 0.5-10 mu m through a melt-blowing device of an extruder and to be sprayed on the outer surface of the filter element body to form a second melt-blown layer;
s103, meltblowing the second meltblown layer again on the surface of the second meltblown layer.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A filter device of PE folded filter element material is characterized in that,
the injection needle comprises a needle head component, a conduit and an injection joint component, wherein the injection joint component comprises a liquid inlet joint, a folding filter element, a sealing plug and a three-way pipe, the folding filter element is fixedly connected with the three-way pipe and is positioned in the three-way pipe, the liquid inlet joint is connected with the three-way pipe and is positioned at one side close to the folding filter element, the sealing plug is detachably connected with the liquid inlet joint and is positioned at one side of the liquid inlet joint, the conduit is communicated with the three-way pipe and is positioned at one side of the three-way pipe, the needle head component comprises a shell, a needle body, an injection shell, a clamping ring and a spring, the shell is provided with a first through hole and a first groove, the first groove is positioned at one side of the first through hole, the injection shell is provided with a clamping groove, the injection shell is slidably connected with the shell and is positioned in the first through hole, and the needle body is communicated with the injection shell, and the clamping ring is provided with a clamping column, the clamping ring is rotatably connected with the shell, the clamping column is positioned in the clamping groove, and the spring is fixedly connected with the shell and positioned between the shell and the injection shell.
2. A PE pleated filter element material filter device as defined in claim 1,
the liquid injection joint assembly further comprises a flow stopping clamp, and the flow stopping clamp is connected with the guide pipe in a sliding mode and located on one side of the guide pipe.
3. A PE pleated filter element material filter device as defined in claim 2,
the liquid injection joint assembly further comprises a fixing belt, and the fixing belt is rotatably connected with the catheter and wound on the catheter.
4. A PE pleated filter element material filter device as defined in claim 3,
annotate liquid joint Assembly still includes the information subsides, the information subsides with fixed band fixed connection to be located one side of fixed band.
5. A PE pleated filter element material filter device as defined in claim 4,
the needle assembly further comprises a handle fixedly connected with the injection shell and penetrating through the first groove.
6. A PE pleated filter element material filter device as defined in claim 1,
the handle is provided with anti-skid grains which are distributed on the handle.
7. A PE pleated filter element material filter device as defined in claim 6,
the needle head assembly further comprises a friction ring, and the friction ring is fixedly connected with the clamping ring and is positioned between the clamping ring and the shell.
8. A process for the preparation of a PE pleated filter element material for the preparation of the pleated filter element according to any of claims 1 to 7,
arranging a folding filter element on a core pipe, enabling the folding filter element to reciprocate with the core pipe at an axial speed of 30-60 m/min and rotate at a radial speed of 2-4 m/min, enabling a polymer to form polymer fibers with the diameter of 2-10 mu m through a melt-blowing device of an extruder, spraying the polymer fibers on the surface of the folding filter element, and melt-blowing the polymer fibers to the folds of the folding filter element to fill a first melt-blowing layer to form a filter element body;
the filter element body reciprocates with the core tube at an axial speed of 20-30 m/min and rotates at a radial speed of 15-40 m/min, and polymer fibers with the diameter of 0.5-10 mu m formed by a polymer are sprayed on the outer surface of the filter element body through a melt-blowing device of an extruder to form a second melt-blown layer;
and melting and spraying the second melt-spraying layer again on the surface of the second melt-spraying layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110759373.7A CN113456939B (en) | 2021-07-05 | 2021-07-05 | Preparation method of PE (polyethylene) folded filter element material and filtering device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110759373.7A CN113456939B (en) | 2021-07-05 | 2021-07-05 | Preparation method of PE (polyethylene) folded filter element material and filtering device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113456939A true CN113456939A (en) | 2021-10-01 |
| CN113456939B CN113456939B (en) | 2022-05-27 |
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Citations (7)
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| CN2810623Y (en) * | 2005-07-21 | 2006-08-30 | 威海洁瑞医用制品有限公司 | Enclosed safety intravenous retention needle |
| CN202314698U (en) * | 2011-11-07 | 2012-07-11 | 钟胜红 | Remaining needle |
| CN205084113U (en) * | 2015-10-20 | 2016-03-16 | 南阳医学高等专科学校第一附属医院 | Neurosurgery is with keeping somewhere needle |
| CN206491849U (en) * | 2016-11-14 | 2017-09-15 | 江苏阳普医疗科技有限公司 | A kind of safety bushing pin |
| CN107362618A (en) * | 2017-08-22 | 2017-11-21 | 江南大学 | Hold dirty and adsorption function foldable filter element and preparation method thereof with high |
| CN107469191A (en) * | 2017-09-26 | 2017-12-15 | 湖北楚天药业有限责任公司 | A kind of anti-venous indwelling needle |
| CN107551674A (en) * | 2017-08-22 | 2018-01-09 | 江南大学 | With preposition processing and the high foldable filter element for holding dirty function and preparation method thereof |
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2021
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2810623Y (en) * | 2005-07-21 | 2006-08-30 | 威海洁瑞医用制品有限公司 | Enclosed safety intravenous retention needle |
| CN202314698U (en) * | 2011-11-07 | 2012-07-11 | 钟胜红 | Remaining needle |
| CN205084113U (en) * | 2015-10-20 | 2016-03-16 | 南阳医学高等专科学校第一附属医院 | Neurosurgery is with keeping somewhere needle |
| CN206491849U (en) * | 2016-11-14 | 2017-09-15 | 江苏阳普医疗科技有限公司 | A kind of safety bushing pin |
| CN107362618A (en) * | 2017-08-22 | 2017-11-21 | 江南大学 | Hold dirty and adsorption function foldable filter element and preparation method thereof with high |
| CN107551674A (en) * | 2017-08-22 | 2018-01-09 | 江南大学 | With preposition processing and the high foldable filter element for holding dirty function and preparation method thereof |
| CN107469191A (en) * | 2017-09-26 | 2017-12-15 | 湖北楚天药业有限责任公司 | A kind of anti-venous indwelling needle |
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| CN113456939B (en) | 2022-05-27 |
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