Four-electrode membrane conductivity test platform

Abstract

The utility model provides a four-electrode membrane conductivity test platform, and belongs to the technical field of four-electrode membrane conductivity test. Comprising a workbench; the placing groove is formed in the workbench; the testing pool is arranged in the placing groove; and the first circulating pump is arranged on the workbench. By arranging the vibrator, the vibrating rod and the connecting wire, the vibrating rod can effectively vibrate the bottom of the testing pool, bubbles in a solution can be promoted to float upwards, the number of the bubbles in the solution can be reduced, then the solution on the inner surface of the testing pool can be pumped out through a small circulation system composed of the first circulating pump, the first pumping pipe and the first return pipe, and therefore the testing accuracy is improved. The bubbles in the extracted solution can be separated out through the bubble separation piece, and then the solution after bubble separation flows back into the test pool through the first return pipe, so that the bubbles in the solution are further reduced, and the interference of the bubbles on conductivity test is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to four electrode membrane conductivity test technical field especially relates to a four electrode membrane conductivity test platform. BACKGROUND

[0002] Four electrode membrane conductivity test usually adopts four electrode method, in four electrode method, two electrodes are as current electrode, and other two electrodes are as potential electrode. Current electrode injects constant current into membrane, forms electric field in membrane, makes ion directional movement and thus generates current, and potential electrode measures potential difference between two ends of membrane. According to ohm's law, conductivity can be calculated by the ratio of potential difference and current, needs to be tested on platform.

[0003] At present, in the testing process, the solubility of gas in solution will change with temperature, pressure and other factors, so that bubbles are generated in the testing process, the bubbles in solution form non-conductive area, interfere with current path, cause false voltage drop, and further affect the calculation accuracy of conductivity, therefore, the application provides a four electrode membrane conductivity test platform to meet the needs. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem that the four electrode membrane conductivity test platform is provided to solve the problem that the bubbles in solution form non-conductive area in the testing process, interfere with current path, cause false voltage drop, and further affect the calculation accuracy of conductivity.

[0005] To solve the above technical problem, the utility model provides the following technical scheme.

[0006] A four electrode membrane conductivity test platform, comprising: a workbench;A placing groove is arranged on the workbench;A test cell is arranged in the placing groove;A first circulating pump is arranged on the workbench;A first pipe is communicated with the first circulating pump at one end and extends into the test cell at the other end, and is used for pumping out the surface solution in the test cell;A first return pipe is communicated with the first circulating pump at one end and extends into the test cell at the other end, and is used for returning the pumped out solution to the test cell;The one end of the first pipe in the test cell is located on the same longitudinal line as the one end of the first return pipe in the test cell;A bubble separation piece is arranged on the first pipe.

[0007] It further comprises: two groups of vibrators are symmetrically arranged in the placing groove;Two groups of vibration rods are symmetrically arranged in the placing groove, and one end of the vibration rod is in contact with the bottom of the test cell.

[0008] It further comprises: two groups of connecting lines are connected with the vibration rods at one end and connected with the vibrators at the other end.

[0009] Further comprising: a large circulating member arranged at the bottom of the workbench, the large circulating member comprising: a mounting frame arranged at the bottom of the workbench.

[0010] Further comprising: a second circulating pump arranged in the mounting frame; a second return pipe, one end of which is arranged on the second circulating pump and the other end of which is in communication with the bottom of the test cell.

[0011] Further comprising: a second suction pipe, one end of which is arranged on the second circulating pump and the other end of which is in communication with the bottom of the test cell.

[0012] Further comprising: a filter member arranged on the second suction pipe.

[0013] Further comprising: a backing plate arranged in the placing groove, the bottom of the test cell being in contact with the backing plate.

[0014] Compared with the prior art, the utility model has at least the following beneficial effects.

[0015] In the above scheme, the vibrator, the vibration rod and the connecting line are arranged, so that the vibration rod can effectively vibrate the bottom of the test cell, the bubbles in the solution can be promoted to float up, and the number of bubbles in the solution can be reduced.

[0016] The large circulating member is arranged, so that the solution at the bottom of the test cell can be circulated and filtered, which can not only remove impurities in the solution and prevent the impurities from affecting the membrane or the electrode during the test, but also maintain the stability of the solution and indirectly improve the accuracy of the test. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of a four-electrode membrane conductivity test platform.

[0018] Figure 2 It is a schematic diagram of a placing groove structure.

[0019] Figure 3 It is a schematic diagram of a large circulating member structure.

[0020] [REFERENCE SIGNS]

[0021] 1, workbench; 2, first circulation; 3, first suction pipe; 4, bubble separation piece; 5, large circulation piece; 6, test cell; 7, first return pipe; 8, placing groove; 9, vibration rod; 10, connecting line; 11, vibrator; 12, pad; 51, mounting frame; 52, second circulation pump; 53, filter piece; 54, second suction pipe; 55, second return pipe.

[0022] As shown in the drawings, in order to clearly realize the structure of the embodiments of the utility model, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the utility model in the specific structure, device and environment, and the ordinary skilled in the art can adjust or modify these devices and environment according to specific needs, and the adjustment or modification still includes in the range of the appended claims. DETAILED DESCRIPTION

[0023] The four-electrode membrane conductivity test platform provided by the utility model will be described in detail below in combination with the drawings and specific embodiments. It should be noted that the following embodiments are the best and preferred embodiments, and other alternative ways can also be used by those skilled in the art to implement some known technologies; and the drawings are only used to more specifically describe the embodiments, and are not intended to specifically limit the utility model.

[0024] As Figure 1 - Figure 3 shown, the embodiment of the utility model provides a four-electrode membrane conductivity test platform, which comprises: a workbench 1; a placing groove 8 arranged on the workbench 1; a test cell 6 arranged in the placing groove 8; a first circulation pump 2 arranged on the workbench 1; a first suction pipe 3, one end of which is communicated with the first circulation pump 2, and the other end of which extends into the test cell 6, which is used for sucking out the surface solution in the test cell 6; a first return pipe 7, one end of which is communicated with the first circulation pump 2, and the other end of which extends into the test cell 6, which is used for returning the sucked solution to the test cell 6; the end of the first suction pipe 3 located in the test cell 6 is located on the same longitudinal line as the end of the first return pipe 7 located in the test cell 6; a bubble separation piece 4 arranged on the first suction pipe 3.

[0025] By arranging the bubble separation piece 4, a centrifugal separator or a membrane separation technology can be used to separate the bubbles in the solution sucked out from the surface of the test cell 6; the first suction pipe 3 and the first return pipe 7 can be fixed on the test cell 6 by a fixing piece, such as a fixing buckle.

[0026] Further comprising: two groups of vibrator 11, arranged in the placement groove 8, symmetrically; two groups of vibration rod 9, arranged in the placement groove 8, symmetrically, one end of the vibration rod 9 is in contact with the bottom of the test pool 6. The number of each group of vibration rod 9 is two, and the two are symmetrically arranged, so that the two groups of vibration rod 9 correspond to the four corners of the bottom of the test pool 6.

[0027] Further comprising: two groups of connecting lines 10, one end connected with the vibration rod 9, the other end connected with the vibrator 11. By setting the connecting line 10, the vibration energy generated by the vibrator 11 is transmitted to the vibration rod 9, and the power supply mode of the vibrator 11 can be supplied by external power supply or wireless power supply, and has the effects of waterproof, high temperature resistance and low temperature resistance.

[0028] Further comprising: a large circulation member 5 arranged at the bottom of the workbench 1, the large circulation member 5 comprising: a mounting frame 51 arranged at the bottom of the workbench 1. By setting the mounting frame 51, the mounting space is provided for other structures in the large circulation member 5, and the internal structure can be protected from interference and damage from external factors.

[0029] Further comprising: a second circulation pump 52 arranged in the mounting frame 51; a second return pipe 55, one end arranged on the second circulation pump 52, the other end communicated with the bottom of the test pool 6. By setting the second circulation pump 52, a control valve can be arranged on the second circulation pump 52 for controlling the flow; the first circulation pump 2 is also used.

[0030] Further comprising: a second suction pipe 54, one end arranged on the second circulation pump 52, the other end communicated with the bottom of the test pool 6. The suction pipe and the return pipe are composed of materials resistant to high temperature, low temperature and corrosion.

[0031] Further comprising: a filter 53 arranged on the second suction pipe 54. The filter 53 comprises a filter frame, which is communicated with the second suction pipe 54, so that the second suction pipe 54 is divided into two parts, one part draws the solution into the filter frame, and the other part transports the filtered solution, and a detachable filter screen is arranged in the filter frame.

[0032] Further comprising: a pad 12 arranged in the placement groove 8, the bottom of the test pool 6 is in contact with the pad 12. By setting the pad 12, a stable physical support is provided for the test pool 6 and has the effect of shock absorption, which can also buffer the vibration from the workbench 1 or other external factors, and a temperature controller can be arranged in the pad 12 to realize accurate control of the temperature of the solution in the test pool 6.

[0033] The technical scheme provided by the utility model is that the solution is poured into the test pool 6, the vibrator 11 is opened, the bottom of the test pool 6 is vibrated through the vibration rod 9, the bubbles in the solution are caused to float up, the first circulating pump 2 is operated, the solution on the inner surface of the test pool 6 is drawn out through the first suction pipe 3, after the bubbles are separated through the bubble separating piece 4, the solution is backflowed into the test pool 6 through the first return pipe 7; the membrane is clamped and fixed through the clamp with four electrodes, is placed into the test pool 6, during the test process, the second circulating pump 52 is operated, the solution at the bottom of the test pool 6 is drawn out through the second suction pipe 54, after being filtered through the filtering piece 53, the solution is backflowed into the test pool 6 through the second return pipe 55.

[0034] The utility model covers any alternative, modification, equivalent method and scheme made on the essence and range of the utility model. In order to make the public have the thorough understanding of the utility model, the specific details are explained in the above preferred embodiment of the utility model, and the utility model can be completely understood without the description of these details for the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit have not been explained in detail.

[0035] The above is only the preferred embodiment of the utility model, and it should be pointed out that for the ordinary skilled person in the art, on the premise of not departing from the principle of the utility model, a plurality of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection range of the utility model.

Claims

1. A four-electrode membrane conductivity test platform, characterized in that, The utility model relates to a test device for testing the surface activity of surfactant, comprising: a workbench (1); a placing groove (8) arranged on the workbench (1); a test cell (6) arranged in the placing groove (8); a first circulating pump (2) arranged on the workbench (1); a first suction pipe (3) having one end communicated with the first circulating pump (2) and the other end extended into the test cell (6) for sucking out the solution in the test cell (6); a first return pipe (7) having one end communicated with the first circulating pump (2) and the other end extended into the test cell (6) for returning the sucked solution into the test cell (6); the one end of the first suction pipe (3) located in the test cell (6) is located on the same longitudinal line as the one end of the first return pipe (7) located in the test cell (6); a bubble separation piece (4) arranged on the first suction pipe (3).

2. The four-electrode membrane conductivity test platform of claim 1, wherein, Further comprising: two groups of vibrators (11) arranged in the placing groove (8) in a symmetrical manner; two groups of vibration rods (9) arranged in the placing groove (8) in a symmetrical manner, one end of the vibration rod (9) being in contact with the bottom of the test cell (6).

3. The four electrode membrane conductivity test platform of claim 2, wherein, Further comprising: two groups of connecting lines (10) having one end connected with the vibration rod (9) and the other end connected with the vibrator (11).

4. The four electrode membrane conductivity test platform of claim 1, wherein, Further comprising: a large circulation piece (5) arranged at the bottom of the workbench (1), the large circulation piece (5) comprising: a mounting frame (51) arranged at the bottom of the workbench (1).

5. The four electrode membrane conductivity test platform of claim 4, wherein, Further comprising: a second circulating pump (52) arranged in the mounting frame (51); a second return pipe (55) having one end arranged on the second circulating pump (52) and the other end communicated with the bottom of the test cell (6).

6. The four electrode membrane conductivity test platform of claim 5, wherein, Further comprising: a second suction pipe (54) having one end arranged on the second circulating pump (52) and the other end communicated with the bottom of the test cell (6).

7. The four-electrode membrane conductivity test platform of claim 6, wherein, Further comprising: a filter piece (53) arranged on the second suction pipe (54).

8. The four-electrode membrane conductivity test platform of claim 1, wherein, Further comprising: a backing plate (12) arranged in the placing groove (8), the bottom of the test cell (6) being in contact with the backing plate (12).

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