PTFE (polytetrafluoroethylene) oil removal tubular membrane with internal pressure cross flow

Abstract

The utility model relates to the technical field of tubular membranes, and discloses an internal pressure cross flow PTFE (polytetrafluoroethylene) oil removal tubular membrane which comprises a PVC (polyvinyl chloride) membrane shell, a connecting membrane is arranged in the PVC membrane shell, an epoxy end seal is attached to one side, far away from the middle of the PVC membrane shell, of a butt joint port, a nut is meshed with the outer side of a bolt, and the nut is positioned on one side, close to the middle of the PVC membrane shell, of the butt joint port. According to the utility model, the connecting film is arranged in the PVC film shell, so that the PVC film shell is not easy to decay after being positioned in greasy water for a long time; meanwhile, the PTFE membrane wires are difficult to mix with oil stains, so that the oil stain filtering effect is improved, and the circulating pump is connected with the epoxy end seal, so that the water flow speed can be controlled, and oil-liquid separation is performed under the conditions that the flow speed of sewage entering the connecting membrane is controlled to be 3-4m / s and the working pressure is not more than 2kg; therefore, the flushing effect of the flow velocity is improved, the oil stain is prevented from being adhered to the inner wall of the connecting membrane and the PTFE membrane wires, and the pollution speed of the PTFE membrane wires and the connecting membrane is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tubular membranes, and more specifically to an internal pressure cross-flow PTFE oil-removing tubular membrane. Background Art

[0002] Electroplating, machining, steelmaking, and oilfields all generate oily wastewater. Most membrane materials have poor oil and contamination resistance, resulting in rapid contamination during use and requiring frequent cleaning. Most methods use physicochemical dosing combined with flotation as a pretreatment for oil removal, but these methods often fail to achieve high removal rates and hinder effective recycling. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a PTFE oil-removing tubular membrane with internal pressure cross-flow, which has the advantages of good oil removal effect and strong oil resistance effect.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an internal pressure cross-flow PTFE oil-removing tubular membrane, comprising a PVC membrane shell, a connecting membrane provided inside the PVC membrane shell, a PTFE membrane filament provided inside the connecting membrane, a docking port fixedly installed on the outside of the PVC membrane shell, an installation groove provided inside the docking port, a sealing ring fixedly installed inside the installation groove, an epoxy end seal attached to the side of the docking port away from the middle of the PVC membrane shell, a bolt inserted into the epoxy end seal, a nut engaged with the outside of the bolt, and the nut located on the side of the docking port close to the middle of the PVC membrane shell.

[0005] As a preferred technical solution of the present invention, a connecting pipe is fixedly installed in the middle of the PVC membrane shell, a water outlet is fixedly installed on the outside of the connecting pipe, and the water outlet is connected to the middle of the PVC membrane shell.

[0006] As an optimal technical solution of the present invention, there are multiple connecting membranes, the diameters of the multiple connecting membranes are all equal, there are multiple PTFE membrane threads, the diameters of the multiple PTFE membrane threads are all equal, and the multiple PTFE membrane threads are respectively located inside the multiple connecting membranes, and smaller holes are provided on the outsides of the multiple connecting membranes and the multiple PTFE membrane threads.

[0007] As a preferred technical solution of the present invention, the end of the epoxy end seal away from the PVC membrane shell is connected to the circulation pump. There are two epoxy end seals, and the diameters of the two epoxy end seals are equal to the diameter of the PVC membrane shell.

[0008] As a preferred technical scheme of the utility model, the sealing ring is smaller than the diameter of the interface, and the end of the sealing ring away from the interface is inside the epoxy end seal.

[0009] As a preferred technical scheme of the utility model, the interface and the epoxy end seal are both two, the two interfaces and the two epoxy end seals are both on the left and right sides of the PVC membrane shell, the bolts and the nuts are both multiple, and the multiple bolts and the multiple nuts are respectively inserted into the two interfaces and the two epoxy end seals.

[0010] Compared with the prior art, the utility model has the beneficial effects as follows:

[0011] 1、 the utility model discloses a connecting membrane is arranged in the inside of PVC membrane shell, and PTFE membrane silk is fixedly installed in the inside of the connecting membrane, and the epoxy end seal away from PVC membrane shell is connected with the circulating pump, when the sewage needs to be treated, the sewage is pumped into the inside of the connecting membrane by the circulating pump, and the connecting membrane and PTFE membrane silk filter oil dirt, and the material of PTFE membrane silk has good corrosion resistance, and is not easy to be corroded in the oil sewage for a long time, and (PTFE membrane silk is difficult to mix with oil dirt, so that the effect of filtering oil dirt is improved, and the circulating pump is connected with the epoxy end seal, so that the speed of water flow can be controlled, the flow rate of the sewage into the connecting membrane is controlled at 3-4 m / s, and the working pressure is not more than 2 kg, and oil separation is carried out, so that the scouring effect of flow rate is improved, oil dirt is prevented from adhering to the inner wall of the connecting membrane and PTFE membrane silk, and the pollution speed of PTFE membrane silk and the connecting membrane is reduced.

[0012] 2、 the utility model discloses that the installation groove is set up in the inside of the interface, and the sealing ring is fixedly installed in the inside of the installation groove, and the end of the sealing ring away from the installation groove is inside the epoxy end seal, and the interface and the epoxy end seal are fixed through the meshing of the bolt and the nut, when the device needs to be installed, the interface and the epoxy end seal are sealed, so that the connection between the PVC membrane shell and the PVC membrane shell is prevented from having a gap, water seepage is prevented, the sealing property of connection is improved, when the inside of the PVC membrane shell needs to be cleaned, the bolt and the nut are disassembled, so that the epoxy end seal and the interface can be disassembled at any time, the convenience of disassembly is improved, and the effect that the epoxy end seal and the interface cannot be used again after being pasted by using glue is prevented. ACCURATE DRAWINGS

[0013] Figure 1 It is the whole structure schematic view of the utility model;

[0014] Figure 2 It is the PTFE membrane silk structure schematic view of the utility model;

[0015] Figure 3 The overall structure of the utility model is shown in the sectional view;

[0016] Figure 4 The structure of A of the utility model is shown in the enlarged schematic view; Figure 3

[0017] Figure 5 The structure of B of the utility model is shown in the enlarged schematic view. Figure 3

[0018] In the figure: 1, PVC membrane shell; 2, connecting membrane; 3, PTFE membrane wire; 4, butt joint; 5, mounting groove; 6, sealing ring; 7, epoxy end seal; 8, bolt; 9, nut; 10, connecting pipe; 11, water outlet. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] As shown in Figures 1 to 5 The utility model provides a PTFE oil removing pipe type membrane of internal pressure cross flow, including PVC membrane shell 1, the inside of PVC membrane shell 1 is equipped with connecting membrane 2, the inside of connecting membrane 2 is equipped with PTFE membrane wire 3, the outside of PVC membrane shell 1 is fixedly installed with butt joint 4, the inside of butt joint 4 is equipped with mounting groove 5, the inside of mounting groove 5 is fixedly installed with sealing ring 6, the side of butt joint 4 away from the middle part of PVC membrane shell 1 is pasted with epoxy end seal 7, the plug of epoxy end seal 7 is equipped with bolt 8, the outside of bolt 8 is engaged with nut 9, and nut 9 is located on the side of butt joint 4 close to the middle part of PVC membrane shell 1.

[0021] The diameter value of PVC membrane shell 1 is less than the diameter value of butt joint 4, mainly the inside of connecting membrane 2 is injected with oil-containing wastewater, at this time, the wastewater will be infiltrated to the inside of PVC membrane shell 1 through the inside of connecting membrane 2 and PTFE membrane wire 3, and the oil and sundries contained in the wastewater will be retained in the inside of connecting membrane 2 and PTFE membrane wire 3, so that the oil stain and sundries are conveniently removed, and the efficiency of wastewater utilization is improved.

[0022] Among them, the middle part of PVC membrane shell 1 is fixedly installed with connecting pipe 10, the outside of connecting pipe 10 is fixedly installed with water outlet 11, and water outlet 11 penetrates the middle part of PVC membrane shell 1.

[0023] ​​The water outlet 11 is mainly used to discharge the water filtered and purified in the PVC membrane shell 1 from the inside of the water outlet 11, so that the purified water flows into the next process for treatment, thereby improving the efficiency of the equipment for purifying water.

[0024] The plurality of connecting membranes 2 have equal diameters, the plurality of PTFE membrane filaments 3 have equal diameters, and the plurality of PTFE membrane filaments 3 are located inside the plurality of connecting membranes 2.

[0025] The plurality of PTFE membrane filaments 3 have small diameters, which are mainly used to filter oil due to the small holes on the outer sides of the PTFE membrane filaments 3 and the difficulty of mixing with oil stains.

[0026] The two epoxy end seals 7 have diameters equal to that of the PVC membrane shell 1.

[0027] The circulation pump is connected to the epoxy end seals 7, so as to control the speed of water flow, separate oil from water at a flow rate of 3-4 m / s and a working pressure of not more than 2 kg, thereby improving the flushing effect of the flow rate, preventing oil stains from adhering to the inner wall of the connecting membrane 2 and the PTFE membrane filament 3, and reducing the pollution speed of the PTFE membrane filament 3 and the connecting membrane 2.

[0028] The sealing ring 6 has a diameter smaller than that of the butt joint 4, an end of the sealing ring 6 away from the butt joint 4 is located inside the epoxy end seal 7, and the sealing ring 6 is made of elastic material.

[0029] The sealing ring 6 is mainly used to seal the joint between the butt joint 4 and the epoxy end seal 7, thereby preventing water leakage due to gaps between the PVC membrane shell 1 and the PVC membrane shell 1, and increasing the sealing property of the connection.

[0030] The two butt joints 4 and the two epoxy end seals 7 are located on the left and right sides of the PVC membrane shell 1, the plurality of bolts 8 and the plurality of nuts 9 are respectively inserted into the two butt joints 4 and the two epoxy end seals 7.

[0031] The two butt joints 4 and the two epoxy end seals 7 are fixed by the engagement of the plurality of bolts 8 and the plurality of nuts 9, which is convenient for fixing, and can be disassembled at any time when the inside of the PVC membrane shell 1 needs to be cleaned, thereby improving the convenience of disassembly and preventing the effect of being unable to be used again after being pasted with glue.

[0032] The working principle and use process of the utility model:

[0033] Firstly, the connecting film 2 is arranged in the PVC film shell 1, the PTFE film wire 3 is fixedly installed in the connecting film 2, and the epoxy end seal 7 is connected with the circulating pump at the end away from the PVC film shell 1; when sewage needs to be treated, the sewage is pumped into the connecting film 2 by the circulating pump, so that the connecting film 2 and the PTFE film wire 3 filter oil stains; since the PTFE film wire 3 has good corrosion resistance, it is not easy to be corroded in the oil sewage for a long time, and the PTFE film wire 3 is difficult to mix with oil stains, thereby improving the effect of filtering oil stains,

[0034] Secondly, the circulating pump is connected with the epoxy end seal 7, so that the speed of water flow can be controlled; the flow rate of the sewage entering the connecting film 2 is controlled at 3-4 m / s, and the working pressure is not more than 2 kg, so that oil separation is carried out, the scouring effect of the flow rate is improved, the oil stains are prevented from adhering to the inner wall of the connecting film 2 and the PTFE film wire 3, and the pollution speed of the PTFE film wire 3 and the connecting film 2 is reduced.

[0035] Finally, the mounting groove 5 is arranged in the interface 4, the sealing ring 6 is fixedly installed in the mounting groove 5, the end of the sealing ring 6 away from the mounting groove 5 is located in the epoxy end seal 7, and the interface 4 and the epoxy end seal 7 are fixed by the meshing action of the bolt 8 and the nut 9; when the device needs to be installed, the joint of the interface 4 and the epoxy end seal 7 is sealed, so that the gap between the PVC film shell 1 and the PVC film shell 1 is prevented from causing water seepage, the sealing property of the connection is improved, and when the inside of the PVC film shell 1 needs to be cleaned, the bolt 8 and the nut 9 are disassembled, so that the epoxy end seal 7 and the interface 4 can be disassembled at any time, the convenience of disassembly is improved, and the effect that the device cannot be used again after being pasted by using glue is prevented.

[0036] It should be noted that, in this text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0037] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An internally pressurized cross-flow PTFE oil removal tubular membrane comprising a PVC membrane shell (1), characterized in that: The inside of the PVC membrane shell (1) is provided with a connecting membrane (2), the inside of the connecting membrane (2) is provided with a PTFE membrane wire (3), the outer side of the PVC membrane shell (1) is fixedly installed with a docking port (4), the inside of the docking port (4) is provided with a mounting groove (5), the inside of the mounting groove (5) is fixedly installed with a sealing ring (6), the side of the docking port (4) away from the middle of the PVC membrane shell (1) is attached with an epoxy end seal (7), the epoxy end seal (7) is inserted with a bolt (8), the outer side of the bolt (8) is engaged with a nut (9), and the nut (9) is located on the side of the docking port (4) close to the middle of the PVC membrane shell (1).

2. The internally pressurized, cross-flow, PTFE oil removal tube sheet membrane of claim 1, wherein: The middle of the PVC membrane shell (1) is fixedly installed with a connecting pipe (10), and the outer side of the connecting pipe (10) is fixedly installed with a water outlet (11).

3. The internally pressurized, cross-flow, PTFE oil removal tube sheet membrane of claim 1, wherein: The connecting membrane (2) has a plurality of connecting membranes (2), the diameter of the plurality of connecting membranes (2) is equal, the PTFE membrane wire (3) has a plurality of PTFE membrane wires (3), the diameter of the plurality of PTFE membrane wires (3) is equal, and the plurality of PTFE membrane wires (3) are respectively located in the plurality of connecting membranes (2), and the outer side of the plurality of connecting membranes (2) and the plurality of PTFE membrane wires (3) is provided with a smaller hole.

4. The internally pressurized, cross-flow, PTFE oil removal tube sheet membrane of claim 1, wherein: The end of the epoxy end seal (7) away from the PVC membrane shell (1) is connected with the circulating pump, the epoxy end seal (7) has two, the diameter of the two epoxy end seals (7) is equal to the diameter of the PVC membrane shell (1).

5. The internally pressurized, cross-flow, PTFE oil removal tube-and-shell membrane of claim 1, wherein: The diameter of the sealing ring (6) is less than the diameter of the docking port (4), the end of the sealing ring (6) away from the docking port (4) is located in the inside of the epoxy end seal (7), and the material of the sealing ring (6) has a certain elasticity.

6. The internally pressurized, cross-flow, PTFE oil removal tube-and-shell membrane of claim 1, wherein: The docking port (4) and the epoxy end seal (7) are both two, the two docking ports (4) and the two epoxy end seals (7) are located on the left and right sides of the PVC membrane shell (1), the bolt (8) and the nut (9) are both a plurality of, and the plurality of bolts (8) and the plurality of nuts (9) are respectively inserted with the two docking ports (4) and the two epoxy end seals (7).

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