Fixing device for tubular membrane tubesheet

Abstract

The utility model discloses a tubular membrane tubesheet fixing device, which comprises tubesheets, membrane tubes and a fixing rod, the tubesheets are uniformly distributed, the membrane tubes are uniformly distributed, the uniformly distributed membrane tubes are fixedly clamped and connected through the tubesheets, the fixing rod is fixedly clamped and inserted between the tubesheets, and the tubesheets are fixed on the fixing rod. The thirteen membrane tubes are fixedly clamped through the four pattern plates, the four pattern plates are evenly distributed on the thirteen membrane tubes from top to bottom, four holes are formed in the periphery of one pattern plate, the fixing rods are matched with the holes, and the fixing rods are made of polytetrafluoroethylene. In the operation process of the filter, the water quantity of produced water does not influence the pattern plate, mainly in the backwashing process, the backwashing water quantity is large, the impact effect on the pattern plate can be achieved, the additionally arranged fixing rods can provide a pulling acting force in the water production process and provide an extrusion acting force in the backwashing process, and therefore the water production efficiency is greatly improved. Under the condition of double acting force, the stability of the pattern plate is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of three-way pipes, in particular to a fixing device for a tubular membrane flower plate. Background Technique

[0002] The application of tubular membrane separation technology is extremely extensive. After many on-site membrane modules have been used for a long time, the flower plates have more or less shifted. Along with the shift of the flower plates, there will also be situations such as the distortion and deformation of membrane tubes. In many cases, the quality problems of membrane modules are caused by the distortion and deformation of membrane tubes. The greater the degree of deformation, the higher the risk of damage. The displacement of the flower plate is one of the important reasons for the quality problems of membrane modules.

[0003] And the existing tubular membrane modules are composed of a number of sintered membrane tubes bonded together. In order to ensure a gap between membrane tubes (production water flow channels and backwash water channels) and to prevent the distortion and deformation of membrane tubes, a perforated plate is arranged at intervals of a certain distance. There are production water flow channels and backwash water channels on the perforated plate itself. However, since the perforated plate is not fixed, during long-term operation, repeated large-flow backwashing will cause the displacement of the perforated plate. Once the displacement of the perforated plate occurs, the membrane tubes will first stick together, affecting the water production capacity. And without the fixing effect of the flower plate, once the circulating temperature is too high, the membrane tubes are prone to distortion and deformation. In addition, once the water production side is not smoothly flowing, there is a problem of chemical agent residue. During the acid-base washing process, the residual chemical agents will come into contact with each other, posing a risk of generating dangerous gas chlorine. Therefore, a device is needed to solve the above-mentioned problems. The utility model adopts the form of fixing rods to fix the flower plate, with little change in the overall assembly method of the membrane module, only need to drill holes in the flower plate. In addition, the fixing rods are simple and easy to obtain. For the membrane module with fixing rods installed, the movement of the flower plate is avoided, and the situation of membrane tube deformation and distortion is greatly improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fixing device for a tubular membrane flower plate to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A fixing device for a tubular membrane flower plate, including a flower plate, membrane tubes and fixing rods. The flower plates are evenly distributed, the membrane tubes are evenly distributed, and the evenly distributed membrane tubes are fixedly connected through the flower plates, and the fixing rods are fixedly inserted between the flower plates.

[0006] Preferably, thirteen membrane tubes are fixedly arranged through four flower plates, and the four flower plates are evenly distributed on the thirteen membrane tubes from top to bottom.

[0007] Preferably, four holes are opened around one flower plate, and the fixing rods are adapted to the holes.

[0008] Preferably, the fixing rod is made of polytetrafluoroethylene.

[0009] Preferably, the fixing rod is made of polycarbonate.

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

[0011] During the operation of the membrane tube of the present utility model, due to the presence of the fixing rod, the flower plate will not be displaced randomly on the membrane tube due to water production or backwashing. The scattered flower plates can support the membrane tube, preventing the membrane tube from being distorted and deformed. Moreover, the flower plates are evenly distributed among the membrane tubes, which can fully play a role in stable support. And the fixing rods are distributed for removal and use from the flower plate. During the operation, the amount of water produced will not affect the flower plate. Mainly during backwashing, the amount of backwashing water is large, which will have an impact on the flower plate. The additional several fixing rods will provide a pulling force during water production and a squeezing force during backwashing, ensuring the stability of the flower plate under the dual action. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional structural schematic diagram of the main body of the present utility model;

[0013] Figure 2 is a side view of the main body of the present utility model;

[0014] Figure 3 is a top view of the main body of the present utility model;

[0015] Figure 4 is a structural schematic diagram of the flower plate in the present utility model.

[0016] In the figure: 1 - flower plate, 2 - membrane tube, 3 - fixing rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

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

[0018] Please refer to Figures 1-4, an embodiment provided by the present utility model: a fixing device for a tubular membrane flower plate, comprising a flower plate 1, membrane tubes 2, and fixing rods 3. The flower plates 1 are evenly distributed, and the membrane tubes 2 are evenly distributed. The evenly distributed membrane tubes 2 are fixedly connected by the flower plates 1. The fixing rods 3 are fixedly inserted between the flower plates 1. Thirteen membrane tubes 2 are fixedly arranged by four flower plates 1, and the four flower plates 1 are evenly distributed from top to bottom on the thirteen membrane tubes 2. Four holes are opened around one flower plate 1, and the fixing rods 3 are adapted to the holes. By providing the flower plates 1, each membrane tube 2 can be fully supported and fixed, preventing the membrane tube 2 from being distorted and deformed during use.

[0019] The material of the fixing rod 3 is polytetrafluoroethylene and can be used in an environment of acid and alkali solutions.

[0020] The material of the fixing rod 3 is polycarbonate and can be used in an environment of acid and alkali solutions.

[0021] Working principle: During the operation of the membrane tube 2, due to the presence of the fixing rod 3, the flower plate 1 will not be displaced randomly on the membrane tube 2 due to water production or backwashing. The scattered flower plates 1 can support the membrane tube 2 to prevent the membrane tube 2 from being distorted and deformed. Moreover, the flower plates 1 are evenly distributed between the membrane tubes 2, which can fully play a role in stable support. And the fixing rods 3 are distributed and can be disassembled and taken from the flower plates 1. During the operation, the amount of water produced will not affect the flower plate 1. Mainly during backwashing, the amount of backwashing water is large and will have an impact on the flower plate 1. The additional several fixing rods 3 will provide a pulling force during water production and a squeezing force during backwashing. Under the dual action, the stability of the flower plate 1 is ensured.

[0022] Although the embodiments of the present utility model 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 utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fixing device for a tubular membrane flower plate, comprising a flower plate (1), a membrane tube (2) and a fixing rod (3), characterized in that: The flower plates (1) are evenly distributed, the membrane tubes (2) are evenly distributed, and the evenly distributed membrane tubes (2) are connected by the flower plates (1), and the fixing rods (3) are inserted between the flower plates (1).

2. A fixing device for a tubular membrane flower plate according to claim 1, characterized in that: The thirteen membrane tubes (2) are fixedly arranged by four flower plates (1), and the four flower plates (1) are evenly distributed on the thirteen membrane tubes (2) from top to bottom.

3. A fixing device for tubular membrane flower plate according to claim 2, characterized in that: Four holes are arranged on the periphery of the flower plate (1), and the fixing rods (3) are adapted to the holes.

4. A fixing device for tubular membrane flower plate according to claim 3, characterized in that: The material of the fixing rod (3) is polytetrafluoroethylene.

5. The fixing device for tubular membrane flower plate according to claim 3 is characterized in that: The material of the fixing rod (3) is polycarbonate.

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