A tubular film sealing device

Abstract

The present invention discloses a tubular membrane sealing device, which includes a membrane shell. On the other side of the lower part of the membrane shell, there is a clear liquid outlet or a backwash port. Flower plate structures are arranged at both the upper and lower ends of the membrane shell. The flower plate structure includes an upper flower plate and a lower flower plate. The upper flower plate is placed inside the lower flower plate. The upper flower plate is provided with membrane tube limiting holes, and the bottom surface of the upper flower plate is provided with an upper flower plate sealing ring limiting groove. A tubular membrane hole is opened inside the lower flower plate for placing a tubular membrane. An embedding groove is opened on the upper end surface of the lower flower plate, and the upper flower plate is accommodated in the embedding groove. A lower flower plate sealing ring limiting angle is arranged between the embedding groove and the tubular membrane hole. In the present invention, through the cooperation of the upper and lower flower plates and the tubular membrane, the O-shaped sealing ring is extruded and deformed, changing from line sealing to surface sealing. Compared with the traditional O-shaped ring and overall sealing, the sealing effect is greatly improved, and the labor intensity and production cost are reduced.

Description

Technical Field

[0001] The present invention relates to a sealing device, and particularly to a tubular film sealing device. Background Art

[0002] The original sealing device, Figure 1 as shown in the figure, mainly includes a tubular film 1', a flower disc 2', a limit ring 3' and an O-ring 4'. The sealing between the inner wall of the flower disc 2' and the outer wall of the tubular film 1' is achieved through the O-ring 4' and the limit ring 3', which is a line seal, and the sealing ring is severely extruded and deformed.

[0003] When the O-ring is used for a long time, it is easy to age and the sealing performance deteriorates. When using this sealing device for clarifying tryptophan fermentation broth, leakage occurs at room temperature. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a tubular film sealing device with good sealing performance.

[0005] The present invention provides the following technical solutions:

[0006] A tubular film sealing device includes a membrane shell. On the other side of the lower part of the membrane shell, there is a clear liquid outlet or a backflush port. At both the upper and lower ends of the membrane shell, there are flower disc structures. The flower disc structure includes an upper flower disc and a lower flower disc. The upper flower disc is placed inside the lower flower disc. The upper flower disc is provided with a membrane tube limit hole, and the bottom surface of the upper flower disc is provided with an upper flower disc sealing ring limit groove. Inside the lower flower disc, there is a tubular film hole for placing the tubular film. On the upper end surface of the lower flower disc, there is an embedding groove, and the upper flower disc is accommodated in the embedding groove. Between the embedding groove and the tubular film hole, there is a lower flower disc sealing ring limit angle.

[0007] Further, the upper flower disc sealing ring limit groove is used for placing the upper flower disc sealing ring, and the flower disc sealing ring limit angle is used for placing the lower flower disc sealing ring.

[0008] Further, the inclination angle of the lower flower disc sealing ring limit angle with respect to the horizontal plane is 35 - 50°.

[0009] Further, the tubular film passes through the tubular film hole, and the top of the tubular film is limited and fixed in the membrane tube limit hole.

[0010] Further, the membrane tube limit hole is in the shape of an inverted step.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention squeezes and deforms the sealing ring through the cooperation of the upper and lower flower discs and the tubular film, changing from a line seal to a surface seal. Compared with the traditional O-ring and overall seal, the sealing effect is greatly improved, and the labor intensity and production cost are reduced. Brief Description of the Drawings

[0012] Figure 1 It is a structural schematic diagram of an existing technical device.

[0013] Figure 2 It is a structural schematic diagram of the present invention.

[0014] Figure 3 is Figure 2 the schematic view in the direction of A in

[0015] Figure 4 in Figure 2 the enlarged schematic view at position B in

[0016] In the figure: 1, membrane housing; 2, lower flower plate; 3, upper flower plate; 4, clear liquid outlet; 5, limiting angle for lower flower plate sealing ring; 6, limiting groove for upper flower plate sealing ring; 7, tubular membrane; 8, membrane tube limiting hole; 9, tubular membrane hole; 10, embedding groove. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figure 2-4 , a tubular membrane sealing device of the present invention includes a membrane housing 1. On the other side of the lower part of the membrane housing 1, there is a clear liquid outlet 4 or a backwashing port. Flower plate structures are provided at both the upper and lower ends of the membrane housing 1. The flower plate structures include an upper flower plate 3 and a lower flower plate 2, and the upper flower plate 3 is placed inside the lower flower plate 2. The upper flower plate 3 is placed inside the lower flower plate 2, and the plate surfaces are flush.

[0019] The upper flower plate 3 is provided with membrane tube limiting holes 8, and the bottom surface of the upper flower plate 3 is provided with a limiting groove 6 for the upper flower plate sealing ring. The limiting groove 6 for the upper flower plate sealing ring is used to place the upper flower plate sealing ring. This increases the sealing effect.

[0020] Multiple tubular membrane holes 9 are opened in the lower flower plate 2 for placing multiple tubular membranes 7. An embedding groove 10 is opened on the upper end surface of the lower flower plate 2, and the upper flower plate 3 is accommodated in the embedding groove 10. A limiting angle 5 for the lower flower plate sealing ring is provided between the embedding groove 10 and the tubular membrane holes 9. The limiting angle 5 for the lower flower plate sealing ring is used to place the lower flower plate sealing ring. This increases the sealing effect.

[0021] The tubular membrane 7 passes through the tubular membrane holes 9, and the top of the tubular membrane 7 is limited and fixed in the membrane tube limiting holes 8.

[0022] The inclination angle of the limiting angle 5 for the lower flower plate sealing ring with the horizontal plane is 35 - 50°. This inclined surface facilitates the placement of the lower flower plate sealing ring.

[0023] The membrane tube limiting hole 8 is in the shape of an inverted step. The tubular membrane 7 makes contact at the step and clings to the step surface.

[0024] The sealing of the device is achieved through the limiting angle 5 of the lower flower plate sealing ring, the limiting groove 6 of the upper flower plate sealing ring, and the extrusion fit of the tubular membrane 7. The sealing form of the device is changed by deforming the sealing ring through the extrusion of the upper and lower flower plate ring limiting grooves (angles) and the membrane tube.

[0025] The membrane sealing device of the present invention is used for impurity separation in tubular membrane equipment, and the material to be purified is subjected to membrane filtration and purification through the membrane sealing device.

[0026] Example 1:

[0027] Tianjin Dongbao Lubricating Oil Co., Ltd., clarification of waste engine oil, temperature 60 - 90 °C, pressure 4 - 5 Kg, the material contains light oils such as kerosene and gasoline, the sealing effect is good, and there is no leakage.

[0028] Example 2:

[0029] Shijiazhuang Metate Chemical Industry, continuous catalytic reactor, temperature 140 - 180 °C, pressure 8 - 16 kg, contains solvents such as cyclohexanone, operates well, and there is no leakage (single component with 139 cores). Single set of 300 m 2 The membrane module is sealed for about 1 h.

[0030] Comparative Example 1:

[0031] The original sealing process is used for the clarification of tryptophan fermentation broth, and leakage occurs at normal temperature, in the aqueous phase, and at a pressure of 4 - 5 Kg (single component with 91 cores). Single set of 208 m 2 The membrane module of the equipment is sealed for about 2 days.

[0032] In the present invention, the sealing ring is extruded and deformed through the cooperation of the upper and lower flower plates and the tubular membrane, changing from line sealing to surface sealing. Compared with traditional O - rings and integral seals, the sealing effect is greatly improved, and the labor intensity and production cost are reduced.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tubular film sealing device, characterized in that: It includes a membrane housing (1). On the other side of the lower part of the membrane housing (1), there is a clear liquid outlet (4) or a backwash port. At both the upper and lower ends of the membrane housing (1), there are flower plate structures. The flower plate structure includes an upper flower plate (3) and a lower flower plate (2). The upper flower plate (3) is placed inside the lower flower plate (2). There are membrane tube limiting holes (8) on the upper flower plate (3). There is an upper flower plate sealing ring limiting groove (6) on the bottom surface of the upper flower plate (3). There are tubular membrane holes (9) in the lower flower plate (2) for placing a tubular membrane (7). There is an embedding groove (10) on the upper end surface of the lower flower plate (2). The upper flower plate (3) is accommodated in the embedding groove (10). There is a lower flower plate sealing ring limiting corner (5) between the embedding groove (10) and the tubular membrane hole (9). The upper flower plate sealing ring limiting groove (6) is used for placing an upper flower plate sealing ring, and the lower flower plate sealing ring limiting corner (5) is used for placing a lower flower plate sealing ring. The inclination angle of the lower flower plate sealing ring limiting corner (5) with respect to the horizontal plane is 35 - 50°. The tubular membrane (7) passes through the tubular membrane hole (9), and the top of the tubular membrane (7) is limited and fixed in the membrane tube limiting hole (8). The membrane tube limiting hole (8) is in the shape of an inverted step.

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