Modular reverse osmosis membrane element

Abstract

The utility model relates to a modular reverse osmosis membrane element which comprises a membrane element body, a water inlet end is arranged at the right end of the membrane element body, a fixing piece is arranged at the left end of the membrane element body, and a water production grid, a membrane and a central pipe are arranged in the membrane element body; the membrane comprises a base material, a supporting layer is arranged on the top of the base material, and a desalting layer is arranged on the top of the supporting layer; the fixing piece comprises a fixing disc and a sealing disc, connecting rods are movably installed at the two ends of the interior of the fixing disc, two catering blocks are slidably installed in the sealing disc, and limiting rods are fixedly installed in the middles of the sides, away from each other, of the two catering blocks. And a spring is fixedly mounted between the middle parts of the opposite sides of the two catering blocks. According to the modular reverse osmosis membrane element, by arranging the fixing piece, the fixing disc and the sealing disc can be detached to clean the interior of the reverse osmosis membrane element, so that the service life of equipment can be prolonged, and the water purification effect can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reverse osmosis membrane elements, in particular to a modular reverse osmosis membrane element. Background Art

[0002] Reverse osmosis membrane element is a thin film that can intercept various inorganic ions, colloids and macromolecular solutes in water, thereby achieving purified water. It is composed of a semipermeable membrane, a dense layer and a support layer. The semipermeable membrane is the core part of the reverse osmosis membrane. It can prevent the passage of solvents (such as water) but allow solutes to pass through, while the dense layer provides sufficient strength and support, allowing the reverse osmosis membrane to withstand high pressure and extreme operating conditions. The support layer is usually made of polyester non-woven fabric or polysulfone material to prevent the semipermeable membrane from being damaged.

[0003] During use, the reverse osmosis membrane may be contaminated by suspended matter, colloid, soluble COD and microorganisms in the influent water. However, the existing reverse osmosis membrane components are difficult to clean inside. After a long time, the water purification effect of the reverse osmosis membrane is greatly reduced. Therefore, a modular reverse osmosis membrane element is proposed to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a modular reverse osmosis membrane element, which has the advantages of easy cleaning, etc., and solves the problem that the existing reverse osmosis membrane components are difficult to clean inside, and the water purification effect of the reverse osmosis membrane is greatly reduced after a long time.

[0005] To achieve the above object, the utility model provides the following technical solution: a modular reverse osmosis membrane element, comprising a membrane element body, a water inlet end is arranged at the right end of the membrane element body, a fixing piece is arranged at the left end of the membrane element body, and a water production grid, a membrane sheet and a central tube are arranged inside the membrane element body;

[0006] The membrane comprises a substrate, a support layer is arranged on the top of the substrate, and a desalination layer is arranged on the top of the support layer;

[0007] The fixing part includes a fixing plate and a sealing plate, connecting rods are movably installed at both ends of the fixing plate, two engaging blocks are slidably installed inside the sealing plate, limiting rods are fixedly installed in the middle of the two separated sides of the two engaging blocks, and a spring is fixedly installed between the middle parts of the opposite sides of the two engaging blocks.

[0008] Furthermore, the central tube is wrapped inside the water production grid and the membrane, the water production grid is wrapped around the outer surface of the membrane, and the outer surface of the membrane element body is wrapped with glass fiber reinforced plastic.

[0009] Furthermore, the substrate is a polyester non-woven fabric with a thickness of 150 microns, the supporting layer is a hurricane layer with a thickness of 50 microns, and the desalination layer has a thickness of 2,000 angstroms.

[0010] Furthermore, the right end of the central tube passes through the water inlet end and extends to the outside of the water inlet end, and a plurality of water seepage holes are formed on the outer surface of the central tube at equal distances.

[0011] Furthermore, the outer surface of the sealing disk contacts the inner wall of the left end of the membrane element body, and the diameter of the sealing disk matches the inner diameter of the membrane element body. The left ends of the top and bottom of the membrane element body are both provided with limiting holes that match the limiting rod.

[0012] Furthermore, one end of the two connecting rods passes through the fixed disk and extends to the interior of the sealing disk, and are fixedly connected to the engaging block, and the two engaging blocks are slidably connected.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The modular reverse osmosis membrane element is provided with fixing parts. When the two connecting rods are pulled in opposite directions, the two engaging blocks can be driven to slide in opposite directions through sliding cooperation. Under the contraction of the spring, the two limiting rods can be moved toward the inner direction of the sealing disk, so as to withdraw from the inner part of the limiting hole, and the fixing disk and the sealing disk can be disassembled to clean the inside of the reverse osmosis membrane element, thereby increasing the life of the equipment and the water purification effect.

[0015] 2. The modular reverse osmosis membrane element is composed of a substrate, a support layer and a desalination layer. The polyester non-woven fabric as the substrate has good mechanical strength and chemical corrosion resistance, and can withstand the influence of high pressure and harsh environment. The support layer provides additional strength and stability to ensure that the membrane is not easily deformed or damaged during operation. The thickness of the desalination layer is two thousand angstroms, which can effectively filter out salt and other impurities in seawater and provide high-quality fresh water. By combining these three layers together, the membrane can play the best effect in seawater treatment and meet people's needs for clean and safe drinking water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of the utility model;

[0017] Figure 2 This is a cross-sectional view of the diaphragm of the utility model;

[0018] Figure 3 This is an internal cross-sectional view of the utility model;

[0019] Figure 4 It is a cross-sectional view of the fixing member of the utility model.

[0020] In the figure: 1. membrane element body; 2. water inlet end; 3. fixing part; 301. fixing plate; 302. sealing plate; 303. connecting rod; 304. catering block; 305. limiting rod; 306. spring; 4. water production grid; 5. diaphragm; 501. substrate; 502. supporting layer; 503. desalination layer; 6. central tube. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 A modular reverse osmosis membrane element in this embodiment includes a membrane element body 1, a water inlet end 2 is arranged at the right end of the membrane element body 1, a fixing part 3 is arranged at the left end of the membrane element body 1, and a water production grid 4, a diaphragm 5 and a central tube 6 are arranged inside the membrane element body 1.

[0023] The outer surface of the central tube 6 is provided with a plurality of water seepage holes at equal distances, and the water seepage holes are used to collect produced water. The water production grid 4 is connected to the central tube 6, and the water production grid 4 can prevent the diaphragm 5 from sticking under higher pressure and maintain the normal water production channel. The diaphragm 5 and the water production grid 4 are combined to form a water flow channel, so that the water flow can reach all membrane surfaces evenly.

[0024] The membrane 5 comprises a substrate 501 , a support layer 502 is arranged on the top of the substrate 501 , and a desalination layer 503 is arranged on the top of the support layer 502 .

[0025] The substrate 501 is a polyester non-woven fabric with a thickness of one hundred and fifty microns. The polyester non-woven fabric has good mechanical strength and chemical corrosion resistance and can withstand the influence of high pressure and harsh environment. The supporting layer 502 is a hurricane layer with a thickness of fifty microns. The hurricane layer provides additional strength and stability to ensure that the membrane 5 is not easily deformed or damaged during operation. The desalination layer 503 has a thickness of two thousand angstroms and can effectively filter out salt and other impurities in seawater to provide high-quality fresh water.

[0026] The fixing member 3 includes a fixing plate 301 and a sealing plate 302. Connecting rods 303 are movably installed at both ends of the fixing plate 301. Two engaging blocks 304 are slidably installed inside the sealing plate 302. Limiting rods 305 are fixedly installed in the middle of the two separated sides of the two engaging blocks 304. A spring 306 is fixedly installed between the middle parts of the opposite sides of the two engaging blocks 304.

[0027] A space is provided between the fixed disk 301 and the sealing disk 302 for the two connecting rods 303 to move. When the two connecting rods 303 are moved in this space, the two engaging blocks 304 inside the sealing disk 302 can be driven to slide and cooperate, driving the two limiting rods 305 to move, so that the two limiting rods 305 can be withdrawn from the two limiting holes provided on the membrane element body 1, thereby achieving the purpose of disassembly, thereby facilitating the cleaning of the interior.

[0028] When implementing, follow these steps:

[0029] 1) When seawater is transported from the water inlet end 2 to the membrane element body 1 and enters the central tube 6, the water can be purified under the action of the water production grid 4 and the membrane 5;

[0030] 2) After long-term use, when the interior needs to be cleaned, first pull the two connecting rods 303 in opposite directions, drive the two engaging blocks 304 to slide in opposite directions through sliding cooperation, and under the contraction of the spring 306, the two limiting rods 305 can move in the direction of the interior of the sealing disk 302, so as to exit the interior of the limiting hole;

[0031] 3) The fixing disk 301 and the sealing disk 302 are then disassembled to clean the inside of the reverse osmosis membrane element.

[0032] In summary, the modular reverse osmosis membrane element, by providing a fixing part 3, can drive the two engaging blocks 304 to slide in opposite directions through sliding cooperation when the two connecting rods 303 are pulled in opposite directions, and the two limiting rods 305 can be moved toward the inner direction of the sealing disk 302 under the contraction of the spring 306, so as to withdraw from the inner part of the limiting hole, and the fixing disk 301 and the sealing disk 302 can be disassembled to clean the inside of the reverse osmosis membrane element, thereby increasing the life of the equipment and the water purification effect.

[0033] Furthermore, by configuring the diaphragm 5 to consist of a substrate 501, a support layer 502 and a desalination layer 503, the polyester non-woven fabric as the substrate 501 has good mechanical strength and chemical corrosion resistance, and can withstand the influence of high pressure and harsh environment. The support layer 502 provides additional strength and stability to ensure that the diaphragm 5 is not easily deformed or damaged during operation. The desalination layer 503 has a thickness of two thousand angstroms and can effectively filter out salt and other impurities in seawater to provide high-quality fresh water. By combining these three layers together, the diaphragm 5 can play the best effect in seawater treatment and meet people's needs for clean and safe drinking water.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A modular reverse osmosis membrane element, comprising a membrane element body (1), characterized in that: The right end of the membrane element body (1) is provided with a water inlet end (2), the left end of the membrane element body (1) is provided with a fixing member (3), and the interior of the membrane element body (1) is provided with a water production grid (4), a membrane sheet (5) and a central tube (6); The membrane (5) comprises a substrate (501), a support layer (502) is arranged on the top of the substrate (501), and a desalination layer (503) is arranged on the top of the support layer (502); The fixing member (3) comprises a fixing disk (301) and a sealing disk (302), connecting rods (303) are movably installed at both ends of the fixing disk (301), two engaging blocks (304) are slidably installed inside the sealing disk (302), a limiting rod (305) is fixedly installed in the middle of the two separate sides of the two engaging blocks (304), and a spring (306) is fixedly installed between the middle parts of the two opposite sides of the two engaging blocks (304).

2. A modular reverse osmosis membrane element according to claim 1, characterized in that: The central tube (6) is wrapped inside the water production grid (4) and the membrane (5), the water production grid (4) is wrapped around the outer surface of the membrane (5), and the outer surface of the membrane element body (1) is wrapped with glass fiber reinforced plastic.

3. A modular reverse osmosis membrane element according to claim 1, characterized in that: The substrate (501) is a polyester non-woven fabric with a thickness of 150 microns, the support layer (502) is a hurricane layer with a thickness of 50 microns, and the desalination layer (503) has a thickness of 2,000 angstroms.

4. A modular reverse osmosis membrane element according to claim 1, characterized in that: The right end of the central tube (6) penetrates the water inlet end (2) and extends to the outside of the water inlet end (2), and a plurality of water seepage holes are provided on the outer surface of the central tube (6) at equal distances.

5. A modular reverse osmosis membrane element according to claim 1, characterized in that: The outer surface of the sealing disk (302) contacts the inner wall of the left end of the membrane element body (1), and the diameter of the sealing disk (302) matches the inner diameter of the membrane element body (1). The left ends of the top and bottom of the membrane element body (1) are both provided with limiting holes that match the limiting rod (305).

6. A modular reverse osmosis membrane element according to claim 1, characterized in that: One end of the two connecting rods (303) passes through the fixed disk (301) and extends to the inside of the sealing disk (302), and is fixedly connected to the engaging block (304). The two engaging blocks (304) are slidably connected.

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