Self-series tubular membrane module

Abstract

A self-series tubular membrane module relates to the technical field of tubular membranes and comprises a membrane shell, permeate outlets are respectively arranged at positions, close to two ends, outside the membrane shell, a certain number of membrane tubes and lining tube sleeves are arranged inside the membrane shell, lining end plates are arranged in ports at two ends, end covers are arranged at two ends of the membrane shell, and connecting shafts are arranged between the lining end plates and the end covers. A locking nut is arranged at the outer end of the connecting shaft, water inlet and outlet connectors are symmetrically arranged on the end covers on the two sides of the locking nut, a certain number of 180-degree elbows are arranged in the end covers, and the two ends of the membrane tube are communicated with the 180-degree elbows and the water inlet and outlet connectors. The tubular membrane component adopts a self-series structure design, so that the end head of the membrane component is provided with a 180-degree elbow, and the turbulence degree in the membrane tube is increased when the membrane component passes through the area every time, so that materials are not easily adsorbed on the surface of the membrane, and the concentration polarization is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tubular membranes, in particular to a self-series tubular membrane component. Background Art

[0002] Tubular membranes are widely used in food, bioengineering, chemical and water treatment industries. Traditional tubular membranes on the market currently have internal membrane tubes in parallel mode. In some specific material industries, such as thick materials, there are still some design problems. These problems can be classified into the following points:

[0003] 1. Turbulence: Since the tubular membranes used in industrial applications are basically straight in and straight out, the turbulence in the membrane tube decreases axially along the material direction.

[0004] 2. Cleaning method. The cleaning methods of traditional tubular membranes are generally chemical cleaning and clean water backwashing. The chemical cleaning method cannot deal with membrane fouling in real time, which will lead to the accumulation of fouling and affect the subsequent cleaning effect. In addition, frequent chemical cleaning will reduce the life of the membrane, and the cleaning time is long and the consumption of chemicals is large.

[0005] 3. High temperature resistance. The higher the temperature, the lower the viscosity of the material. Under the same operating pressure, the higher the membrane flux. The general temperature resistance limit of tubular membranes on the market is about 50°. When facing highly viscous materials, there will inevitably be problems such as low flux, low flow rate and easy fouling and clogging of the membrane.

[0006] 4. Replacement of membrane tubes. Traditional tubular membranes are packaged with one-time glue filling. When part of the membrane tubes are damaged, they can only be blocked at fixed points and cannot be replaced. This will lead to a reduction in processing capacity. In addition, when the membrane product reaches its predetermined service life, the only option is to replace the membrane assembly as a whole, which is costly. Utility Model Content

[0007] In view of the above problems, the utility model provides a self-series tubular membrane module. The self-series structure design enables a 180° elbow at the end of the membrane module, thereby forming a series flow channel (forming a single / double flow channel) inside the membrane module.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0009] A self-series tubular membrane assembly comprises a membrane shell, wherein the outer part of the membrane shell is provided with permeate outlets near both ends, a certain number of membrane tubes and liner sleeves are provided inside, liner end plates are provided in the ports at both ends, end covers are provided at both ends of the membrane shell, a connecting shaft is provided between the liner end plate and the end cover, a locking nut is provided at the outer end of the connecting shaft, inlet and outlet water joints are symmetrically provided on the end covers on both sides of the locking nut, a certain number of 180° elbows are provided inside the end covers, and both ends of the membrane tube are connected with the 180° elbows and the inlet and outlet water joints. The structure of the self-series assembly adopts high temperature resistant stainless steel material, and the two inlet and outlet water joints at one end are in the form of double flow channels.

[0010] Preferably, the number of the membrane tubes is 5 to 18.

[0011] Preferably, the end cap and the liner end plate are provided with corresponding holes, and positioning pins are arranged in the holes. The positioning pins facilitate the correct installation of the end cap and ensure the correct and unobstructed flow channel.

[0012] Preferably, a connecting shaft gasket is sleeved on the connecting shaft to bear the stress of the locking nut and the end cover.

[0013] Preferably, a sealing combination gasket is provided between the end cover and the liner end plate for sealing the liner end plate and the end cover.

[0014] Preferably, the sealing assembly gasket is made of metal on a side close to the end cover, and is made of rubber on a side close to the liner end plate.

[0015] Preferably, an O-ring is provided between the liner end plate and the membrane shell. The liner end plate is provided with an O-ring groove, and the O-ring is placed in the groove to seal the membrane shell.

[0016] Preferably, membrane tube sealing rings are provided at both ends of the membrane tube, and the membrane tube sealing rings are used for sealing between the membrane tube and the end cover and the sealing assembly gasket.

[0017] Preferably, the water inlet and outlet joints are fixed to the end caps by screws symmetrically arranged on both sides thereof, and screw washers and spring washers are sleeved on the screws. The screws lock the water inlet and outlet joints, and the screw washers and spring washers bear the stress of both.

[0018] Preferably, a joint sealing gasket is provided between the water inlet and outlet joints and the end cover to seal the water inlet and outlet joints and the end cover.

[0019] The advantages of the utility model are: 1. The self-series structure of the dual-channel form makes a 180° elbow at the end of the membrane assembly. Each time it passes through this area, the turbulence in the membrane tube increases, making it difficult for materials to be adsorbed on the membrane surface, reducing concentration polarization.

[0020] 2. The self-series component structure enables the use of an external cleaning ball bypass structure to achieve an online physical scrubbing effect, especially for viscous materials.

[0021] 3. The self-series component structure is made of high-temperature resistant stainless steel and equipped with high-temperature resistant membrane tubes. It can operate at 80° and can cope with solid-liquid / material separation under special conditions.

[0022] 4. The self-series assembly structure can replace the membrane tube online. The two ends of the membrane tube are sealed with membrane tube sealing rings, which is convenient for disassembly and replacement.

[0023] 5. The membrane assembly can not only be equipped with tubular ultrafiltration membranes, but also tubular nanofiltration and tubular reverse osmosis membranes. The accessories of the membrane assembly are made of stainless steel and can withstand a maximum pressure of 60 bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the front view of the utility model;

[0025] Figure 2 for Figure 1 Sectional view along AA direction;

[0026] Figure 3 It is a side view of the utility model;

[0027] Figure 4 for Figure 1 The enlarged schematic diagram of point B in the middle;

[0028] Figure 5 for Figure 2 Enlarged schematic diagram of point C in the middle.

[0029] Explanation of the main component symbols in the figure: 1. Membrane shell; 1.1. Permeate outlet; 2. Membrane tube; 3. Liner sleeve; 4. Liner end plate; 5. End cover; 6. Connecting shaft; 7. Locking nut; 8. Inlet and outlet water joints; 9. 180° elbow; 10. Locating pin; 11. Connecting shaft gasket; 12. Sealing combination gasket; 13. O-ring; 14. Membrane tube sealing ring; 15. Screw; 16. Screw gasket; 17. Spring gasket; 18. Joint sealing gasket. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0031] Embodiment 1: Figure 1-5As shown, a self-series tubular membrane assembly comprises a membrane shell 1, wherein the outer portion of the membrane shell 1 is provided with permeate outlets 1.1 near both ends, a certain number of membrane tubes 2 and liner sleeves 3 are provided inside, liner end plates 4 are provided in the ports at both ends, end covers 5 are provided at both ends of the membrane shell 1, a connecting shaft 6 is provided between the liner end plate 4 and the end cover 5, a locking nut 7 is provided at the outer end of the connecting shaft 6, inlet and outlet water joints 8 are symmetrically provided on the end covers 5 on both sides of the locking nut 7, a certain number of 180° elbows 9 are provided inside the end covers 5, and both ends of the membrane tube 2 are connected with the 180° elbows 9 and the inlet and outlet water joints 8.

[0032] The end cover 5 and the liner end plate 4 are provided with corresponding holes, and positioning pins 10 are arranged in the holes.

[0033] The material enters from the water inlet and outlet joint 8, passes through several membrane tubes 2 and 180° elbows 9 inside the membrane module, and finally exits from the water inlet and outlet joint 8. The generated permeate flows out from the permeate outlet 1.1.

[0034] Embodiment 2: Figure 2 and Figure 5 As shown, on the basis of Example 1, a sealing combination gasket 12 is arranged between the end cover 5 and the lining end plate 4, and the material of the sealing combination gasket 12 close to the end cover 5 is metal, and the material of the side close to the lining end plate 4 is rubber, wherein an O-ring 13 is arranged between the lining end plate 4 and the membrane shell 1.

[0035] In addition, membrane tube sealing rings 14 are provided at both ends of the membrane tube 2 , and joint sealing gaskets 18 are provided between the water inlet and outlet joints 8 and the end cover 5 .

[0036] Embodiment 3: Figure 3-5 As shown, based on the first and second embodiments, a connecting shaft gasket 11 is sleeved on the connecting shaft 6, and the inlet and outlet water joints 8 are fixed to the end cover 5 by screws 15 symmetrically arranged on both sides thereof, and the screws 15 are sleeved with screw gaskets 16 and spring gaskets 17.

[0037] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. The present invention can be used on similar products. Any changes or modifications made by any technician in the field of the present invention are covered by the patent scope of the present invention.

Claims

1. A self-series tubular membrane module, characterized in that: The invention comprises a membrane shell (1), wherein the membrane shell (1) is provided with permeate outlets (1.1) at the positions near both ends of the membrane shell (1), a certain number of membrane tubes (2) and liner sleeves (3) are provided inside the membrane shell (1), liner end plates (4) are provided in the ports at both ends, end covers (5) are provided at both ends of the membrane shell (1), a connecting shaft (6) is provided in the middle of the liner end plate (4) and the end cover (5), a locking nut (7) is provided at the outer end of the connecting shaft (6), water inlet and outlet joints (8) are symmetrically provided on the end covers (5) on both sides of the locking nut (7), a certain number of 180° elbows (9) are provided inside the end covers (5), and both ends of the membrane tube (2) are connected to the 180° elbows (9) and the water inlet and outlet joints (8).

2. A self-series tubular membrane module according to claim 1, characterized in that: The end cover (5) and the lining end plate (4) are provided with corresponding holes, and positioning pins (10) are arranged in the holes.

3. A self-series tubular membrane module according to claim 1, characterized in that: A connecting shaft gasket (11) is sleeved on the connecting shaft (6).

4. The self-series tubular membrane module according to claim 1, characterized in that: A sealing assembly gasket (12) is provided between the end cover (5) and the liner end plate (4).

5. A self-series tubular membrane module according to claim 4, characterized in that: The material of the sealing assembly gasket (12) on the side close to the end cover (5) is metal, and the material of the side close to the lining end plate (4) is rubber.

6. A self-series tubular membrane module according to claim 4, characterized in that: An O-ring (13) is provided between the liner end plate (4) and the membrane shell (1).

7. The self-series tubular membrane module according to claim 1, characterized in that: Membrane tube sealing rings (14) are provided at both ends of the membrane tube (2).

8. A self-series tubular membrane module according to any one of claims 1 to 7, characterized in that: The water inlet and outlet joints (8) are fixed to the end cover (5) by screws (15) symmetrically arranged on both sides thereof, and screw washers (16) and spring washers (17) are sleeved on the screws (15).

9. A self-series tubular membrane module according to claim 8, characterized in that: A joint sealing gasket (18) is provided between the water inlet and outlet joints (8) and the end cover (5).

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