Nanofiltration membrane performance detection device

Abstract

The utility model relates to the technical field of nanofiltration membranes, and provides a nanofiltration membrane performance detection device which comprises a bottom plate, a clamping assembly is installed on the top of the bottom plate, a lower fixing cylinder is fixedly connected to the top of the bottom plate, a detection assembly is installed on the top of the bottom plate, and a test assembly is installed on the top of the bottom plate. The air cylinder is started to drive the spherical positioning piece to move in the upper sleeve, the distance between the spherical positioning piece and the positioning ring is controlled, and therefore the flow speed and the flow rate flowing to the nanofiltration membrane are controlled, sewage is added into the upper limiting barrel through the water inlet pipe, and the switch valve is opened to enable the sewage to flow into the lower limiting barrel after being filtered by the nanofiltration membrane. The main probe and the auxiliary probe are used for detecting internal organic matter, the interception proportion of the organic matter is judged through comparison, and quality and performance can be detected at the same time. According to the technical scheme, the problem that the quality and the performance of the nanofiltration membrane cannot be detected at the same time in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nanofiltration membrane technical field, specifically, relate to a nanofiltration membrane performance detection device. BACKGROUND

[0002] Nanofiltration is a pressure-driven membrane separation process between reverse osmosis and ultrafiltration, which is used to separate relatively small molecular weight substances such as inorganic salts or glucose, sucrose and other small molecular organic substances from solvents. Nanofiltration, also known as low-pressure reverse osmosis, is a new field of membrane separation technology, with separation performance between reverse osmosis and ultrafiltration, allowing some inorganic salts and certain solvents to pass through the membrane to achieve the effect of separation.

[0003] The traditional membrane module performance detection device can only detect the membrane pure water flux of the membrane module or detect the quality of the membrane module alone, which is low in detection efficiency and affects the delivery efficiency of the membrane module. UTILITY MODEL CONTENT

[0004] The utility model provides a nanofiltration membrane performance detection device, solve the problem that cannot detect the quality and performance of nanofiltration membrane simultaneously in related art.

[0005] The technical scheme of the utility model is as follows: a nanofiltration membrane performance detection device, comprising a bottom plate, the bottom plate top is installed with clamping assembly, the bottom plate top is installed with lifting assembly, the lifting assembly outside is fixedly connected with upper fixed cylinder, the bottom plate top is fixedly connected with lower fixed cylinder, the bottom plate top is installed with detection assembly, the bottom plate top is installed with test assembly.

[0006] Preferably, the lifting assembly comprises a support block, the support block is fixed on the top of the bottom plate, a circular groove is formed in the outer portion of the support block, an electric push rod is fixedly connected inside the circular groove, and a support frame is fixedly connected to the output end of the electric push rod.

[0007] Preferably, the detection assembly comprises an upper sleeve, the upper sleeve is fixed at the bottom of the support frame, a gas cylinder is fixedly connected to the outer portion of the support frame and inside the upper sleeve, a fixed plate is fixedly connected inside the upper sleeve, a sealing ring is fixedly connected inside the fixed plate, the sealing ring is in sliding connection with the gas cylinder inside, a spherical positioning member is fixedly connected to the output end of the gas cylinder, and a positioning ring is fixedly connected inside the upper sleeve.

[0008] Preferably, the bottom plate top is fixedly connected with a lower sleeve, the lower sleeve is fixedly connected with a liquid discharge pipe outside, and the upper sleeve is fixedly connected with a liquid inlet pipe outside.

[0009] Preferably, the test assembly comprises an upper limiting cylinder fixed at the bottom of the support frame, a switch valve fixedly installed outside the upper limiting cylinder, a lower limiting cylinder fixedly connected inside the bottom plate on the top of the bottom plate, a drain pipe fixedly connected outside the lower limiting cylinder, and a water inlet pipe fixedly connected outside the upper limiting cylinder.

[0010] Preferably, the bottom plate is fixedly connected with an organic matter tester on the top, the organic matter tester is fixedly installed with a main probe and a secondary probe at the output end, the main probe extends to the inside of the upper limiting cylinder at the tail end, the secondary probe extends to the inside of the lower limiting cylinder at the tail end, and a contrast color plate is fixedly connected inside the bottom plate on the top of the lower fixed cylinder.

[0011] Preferably, the clamping assembly comprises a main fixed column fixed at the top of the bottom plate, a main fixed clamp fixedly installed at the top of the main fixed column, a linear guide rail fixedly connected with the top of the bottom plate, a linear sliding block slidingly connected outside the linear guide rail, a secondary fixed column fixedly connected with the top of the linear sliding block, and a secondary fixed clamp fixedly installed at the top of the secondary fixed column.

[0012] Preferably, the lower fixed cylinder is provided with an observation port outside, the upper fixed cylinder is fixedly connected with a rubber ring at the bottom, the upper sleeve is fixedly connected with an upper limiting ring at the bottom, and the lower sleeve is fixedly connected with a lower limiting ring at the top.

[0013] The working principle and beneficial effects of the utility model are as follows:

[0014] 1. In the utility model, after the nanofiltration membrane is fixed, water is added to the inside of the upper sleeve through the liquid inlet pipe, the cylinder is started to drive the spherical positioning member to move in the upper sleeve, the distance between the spherical positioning member and the positioning ring is controlled, the flow rate and flow of the flow to the nanofiltration membrane are controlled, the quality of the nanofiltration membrane is judged according to the change, the water flowing into the lower sleeve is discharged through the liquid outlet pipe, sewage is added to the upper limiting cylinder through the water inlet pipe, the switch valve is opened to make the sewage flow into the lower limiting cylinder after being filtered by the nanofiltration membrane, the main probe and the secondary probe are used to detect the internal organic matter, the organic matter interception ratio is judged by comparison, the filtered sewage and the contrast color plate are compared through the observation port, the quality and performance can be detected at the same time, and the detection efficiency is improved.

[0015] 2. In the utility model, the nanofiltration membrane is fixed by the main fixed clamp and the secondary fixed clamp, the linear sliding block is started to slide on the linear guide rail, the nanofiltration membrane is evenly laid between the upper fixed cylinder and the lower fixed cylinder, the electric push rod is started to make the support frame move downward, the position of the nanofiltration membrane is fixed by the cooperation between the upper limiting ring and the lower limiting ring, the position of the nanofiltration membrane can be fixed well, and the detection of the nanofiltration membrane is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model discloses make further detailed description below combining with the drawings and specific embodiment.

[0017] Figure 1 It is the whole structure schematic view of the utility model;

[0018] Figure 2 It is the detection assembly structure schematic view of the utility model;

[0019] Figure 3 It is the test assembly structure schematic view of the utility model;

[0020] Figure 4 It is the lifting assembly structure schematic view of the utility model;

[0021] Figure 5 It is the side view cross section structure schematic view of the utility model;

[0022] Figure 6 It is the utility model Figure 2 The enlarged view of a in the middle;

[0023] In the drawing: 1, bottom plate;2, clamping assembly;21, main fixed column;22, main fixed clamp;23, linear guide rail;24, linear slide;25, auxiliary fixed column;26, auxiliary fixed clamp;3, lifting assembly;31, support block;32, circular groove;33, electric push rod;34, support frame;4, lower fixed cylinder;5, upper fixed cylinder;6, detection assembly;61, upper sleeve;62, air cylinder;63, fixed plate;64, spherical positioning member;65, positioning ring;66, lower sleeve;67, liquid inlet pipe;68, liquid outlet pipe;69, sealing ring;7, test assembly;71, upper limit cylinder;72, on-off valve;73, lower limit cylinder;74, organic matter measuring instrument;75, contrast color plate;76, main probe;77, auxiliary probe;78, water inlet pipe;79, drain pipe;8, observation port;9, rubber ring;10, upper limit ring;11, lower limit ring. Specific embodiment

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are involved in the protection scope of the utility model.

[0025] Embodiment 1

[0026] As Figures 1-6As shown, the embodiment proposes a nanofiltration membrane performance detection device, which comprises a bottom plate 1, a clamping assembly 2 is installed on the top of the bottom plate 1, a lifting assembly 3 is installed on the top of the bottom plate 1, an upper fixed cylinder 5 is fixedly connected outside the lifting assembly 3, a lower fixed cylinder 4 is fixedly connected on the top of the bottom plate 1, a detection assembly 6 is installed on the top of the bottom plate 1, and a test assembly 7 is installed on the top of the bottom plate 1.

[0027] Further, the detection assembly 6 comprises an upper sleeve 61, the upper sleeve 61 is fixed at the bottom of the support frame 34, a gas cylinder 62 is fixedly connected outside the support frame 34 and located inside the upper sleeve 61, a fixed plate 63 is fixedly connected inside the upper sleeve 61, a sealing ring 69 is fixedly connected inside the fixed plate 63, the sealing ring 69 is in sliding connection with the gas cylinder 62 inside, a spherical positioning piece 64 is fixedly connected to the output end of the gas cylinder 62, a positioning ring 65 is fixedly connected inside the upper sleeve 61, a lower sleeve 66 is fixedly connected on the top of the bottom plate 1, a drainage pipe 68 is fixedly connected outside the lower sleeve 66, and a liquid inlet pipe 67 is fixedly connected outside the upper sleeve 61. After the nanofiltration membrane is fixed, water is added to the inside of the upper sleeve 61 through the liquid inlet pipe 67, the gas cylinder 62 is started to drive the spherical positioning piece 64 to move inside the upper sleeve 61, the distance between the spherical positioning piece 64 and the positioning ring 65 is controlled, and then the flow rate and flow of the nanofiltration membrane are controlled. The quality of the nanofiltration membrane is judged according to the change of the nanofiltration membrane.

[0028] Further, the test assembly 7 comprises an upper limiting cylinder 71, the upper limiting cylinder 71 is fixed at the bottom of the support frame 34, a switch valve 72 is fixedly installed outside the upper limiting cylinder 71, a lower limiting cylinder 73 is fixedly connected on the top of the bottom plate 1 and located inside the lower fixed cylinder 4, a drainage pipe 79 is fixedly connected outside the lower limiting cylinder 73, a water inlet pipe 78 is fixedly connected outside the upper limiting cylinder 71, an organic matter detector 74 is fixedly connected on the top of the bottom plate 1, a main probe 76 and a secondary probe 77 are fixedly installed at the output end of the organic matter detector 74, the main probe 76 extends to the inside of the upper limiting cylinder 71, the secondary probe 77 extends to the inside of the lower limiting cylinder 73, a contrast color plate 75 is fixedly connected on the top of the bottom plate 1 and located inside the lower fixed cylinder 4, the switch valve 72 is opened to make the sewage flow into the lower limiting cylinder 73 after being filtered by the nanofiltration membrane, the main probe 76 and the secondary probe 77 are used to detect the organic matter inside, the interception ratio of the organic matter is judged by comparison, and the filtered sewage is compared with the contrast color plate 75 through the observation port 8 to judge the performance.

[0029] In this embodiment, after the nanofiltration membrane is fixed, water is added to the inside of the upper sleeve 61 through the liquid inlet pipe 67, the cylinder 62 is started to drive the spherical positioning piece 64 to move inside the upper sleeve 61, the distance between the spherical positioning piece 64 and the positioning ring 65 is controlled, and then the flow rate and flow of the nanofiltration membrane are controlled. According to the change of the nanofiltration membrane, the quality of the nanofiltration membrane is judged. The water flowing into the lower sleeve 66 is discharged through the liquid outlet pipe 68. The sewage is added to the upper limiting cylinder 71 through the water inlet pipe 78. The switch valve 72 is opened to make the sewage flow into the lower limiting cylinder 73 after being filtered by the nanofiltration membrane. The main probe 76 and the auxiliary probe 77 are used to detect the internal organic matter. The interception ratio of the organic matter is judged by comparison. The filtered sewage is compared with the comparison color plate 75 through the observation port 8. The quality and performance can be detected at the same time, and the detection efficiency is improved.

[0030] Embodiment 2

[0031] As shown in Figures 1-3 the same as the above embodiment 1, the lifting assembly 3 further comprises a support block 31 fixed on the top of the bottom plate 1. A circular groove 32 is formed on the outside of the support block 31. An electric push rod 33 is fixedly connected inside the circular groove 32. A support frame 34 is fixedly connected to the output end of the electric push rod 33. The support frame 34 is lowered by starting the electric push rod 33, and the height of the support frame 34 is controlled.

[0032] Further, the clamping assembly 2 comprises a main fixed column 21 fixed on the top of the bottom plate 1. A main fixed clamp 22 is fixedly installed on the top of the main fixed column 21. A linear guide rail 23 is fixedly connected to the top of the bottom plate 1. A linear sliding block 24 is slidingly connected to the outside of the linear guide rail 23. A vice fixed column 25 is fixedly connected to the top of the linear sliding block 24. A vice fixed clamp 26 is fixedly installed on the top of the vice fixed column 25. The nanofiltration membrane is fixed by using the main fixed clamp 22 and the vice fixed clamp 26. The nanofiltration membrane is evenly laid between the upper fixed cylinder 5 and the lower fixed cylinder 4 by sliding the linear sliding block 24 on the linear guide rail 23.

[0033] Further, the lower fixed cylinder 4 is externally provided with an observation port 8. The upper fixed cylinder 5 is fixedly connected with a rubber ring 9 at the bottom. The upper sleeve 61 is fixedly connected with an upper limiting ring 10 at the bottom. The lower sleeve 66 is fixedly connected with a lower limiting ring 11 at the top. The position of the nanofiltration membrane is fixed by cooperating the upper limiting ring 10 and the lower limiting ring 11, which can well fix the position of the nanofiltration membrane.

[0034] In the embodiment, the nanofiltration membrane is fixed by the main fixing clamp 22 and the auxiliary fixing clamp 26, the linear slide 24 is started to slide on the linear guide rail 23, the nanofiltration membrane is laid flat between the upper fixing cylinder 5 and the lower fixing cylinder 4, the electric push rod 33 is started to move downward, the position of the nanofiltration membrane is fixed between the upper limiting ring 10 and the lower limiting ring 11, the position of the nanofiltration membrane can be fixed well, and the detection of the nanofiltration membrane is more stable.

[0035] The above are only preferred embodiments of the present application, and are not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for detecting the performance of a nanofiltration membrane, characterized in that it comprises: Including the bottom plate (1), the clamping assembly (2) is installed on the top of the bottom plate (1), the lifting assembly (3) is installed on the top of the bottom plate (1), the upper fixed cylinder (5) is fixedly connected outside the lifting assembly (3), the lower fixed cylinder (4) is fixedly connected on the top of the bottom plate (1), the detection assembly (6) is installed on the top of the bottom plate (1), and the test assembly (7) is installed on the top of the bottom plate (1).

2. The device for detecting the performance of a nanofiltration membrane according to claim 1, characterized in that, The lifting assembly (3) comprises a supporting block (31), the supporting block (31) is fixed on the top of the bottom plate (1), a circular groove (32) is formed in the outer portion of the supporting block (31), and an electric push rod (33) is fixedly connected in the circular groove (32).

3. The device for detecting the performance of a nanofiltration membrane according to claim 2, characterized in that, The detection assembly (6) comprises an upper sleeve (61), the upper sleeve (61) is fixed on the bottom of the supporting frame (34), a gas cylinder (62) is fixedly connected outside the supporting frame (34) and inside the upper sleeve (61), a fixed plate (63) is fixedly connected inside the upper sleeve (61), a sealing ring (69) is fixedly connected inside the fixed plate (63), the sealing ring (69) is in sliding connection with the gas cylinder (62) inside, a spherical positioning piece (64) is fixedly connected to the output end of the gas cylinder (62), and a positioning ring (65) is fixedly connected inside the upper sleeve (61).

4. The device for detecting the performance of a nanofiltration membrane according to claim 3, characterized in that, The bottom plate (1) is fixedly connected with a lower sleeve (66) on the top, the lower sleeve (66) is fixedly connected with a liquid discharge pipe (68) outside, and the upper sleeve (61) is fixedly connected with a liquid inlet pipe (67) outside.

5. The device for detecting the performance of a nanofiltration membrane according to claim 2, wherein, The test assembly (7) comprises an upper limiting cylinder (71), the upper limiting cylinder (71) is fixed on the bottom of the supporting frame (34), a switch valve (72) is fixedly installed outside the upper limiting cylinder (71), a lower limiting cylinder (73) is fixedly connected inside the lower fixed cylinder (4) on the top of the bottom plate (1), a drain pipe (79) is fixedly connected outside the lower limiting cylinder (73), and a water inlet pipe (78) is fixedly connected outside the upper limiting cylinder (71).

6. The device for detecting the performance of a nanofiltration membrane according to claim 1, wherein, The bottom plate (1) is fixedly connected with an organic matter detector (74) on the top, the organic matter detector (74) is fixedly installed with a main probe (76) and a secondary probe (77) at the output end, the main probe (76) extends to the inside of the upper limiting cylinder (71) at the tail end, the secondary probe (77) extends to the inside of the lower limiting cylinder (73) at the tail end, and a contrast color plate (75) is fixedly connected inside the lower fixed cylinder (4) on the top of the bottom plate (1).

7. The device for detecting the performance of a nanofiltration membrane according to claim 1, wherein, The clamping assembly (2) comprises a main fixed column (21), the main fixed column (21) is fixed on the top of the bottom plate (1), a main fixed clamp (22) is fixedly installed on the top of the main fixed column (21), a linear guide rail (23) is fixedly connected on the top of the bottom plate (1), a linear sliding block (24) is slidably connected outside the linear guide rail (23), a secondary fixed column (25) is fixedly connected on the top of the linear sliding block (24), and a secondary fixed clamp (26) is fixedly installed on the top of the secondary fixed column (25). 8.The device for detecting performance of a nanofiltration membrane according to claim 4, characterized in that, The lower fixed cylinder (4) is externally provided with an observation port (8), the upper fixed cylinder (5) is fixedly connected with a rubber ring (9) at the bottom, the upper sleeve (61) is fixedly connected with an upper limiting ring (10) at the bottom, and the lower sleeve (66) is fixedly connected with a lower limiting ring (11) at the top.

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