Electrolytic tank liquid discharging and supplementing device of membrane electrolysis electrode of Karl Fischer moisture tester

Abstract

An electrolytic tank liquid draining and supplementing device with a membrane electrolysis electrode of a Karl-Fischer moisture tester comprises the Karl-Fischer moisture tester, a control circuit, a vacuum pump and an electromagnetic three-way valve, a silica gel plug buckle cover is buckled on an upper grinding opening of an inner electrolytic tank and an upper grinding opening of an outer electrolytic tank respectively, and a liquid supplementing pipe, a liquid draining pipe and a pressure reduction drying pipe are installed and inserted into the upper grinding opening of the inner electrolytic tank and the upper grinding opening of the outer electrolytic tank respectively. The two liquid supplementing pipes are connected with the same main liquid supplementing distribution electromagnetic three-way valve and are connected with a main liquid supplementing pipe on a bottle cap of a liquid supplementing bottle; the two liquid discharge pipes are connected with the other main liquid discharge distribution electromagnetic three-way valve and connected with a main liquid discharge pipe on a bottle cap of the liquid discharge receiving bottle, the air blowing pipe is connected with an air outlet of the vacuum pump, and the air suction pipe is connected with an air inlet of the vacuum pump. The electrolyte supplementing and discharging device for the electrolytic tank of the Karl Fischer moisture tester is simple in structure, aims at the problems existing in a traditional manual operation mode, can control electrolyte supplementing and adding conveniently and quickly according to test requirements, is particularly suitable for being applied and popularized in the field, and has very wide market prospects, and the electrolyte supplementing and discharging device for the electrolytic tank of the Karl Fischer moisture tester is simple in structure and particularly suitable for being popularized and applied in the field.

Description

Technical Field

[0001] The utility model relates to a chemical testing instrument, in particular to an electrolytic cell draining and replenishing device with a membrane electrolysis electrode for a Karl Fischer moisture tester. Background Art

[0002] Currently, the electrolytic electrode in the electrolytic cell of the Karl Fischer moisture tester used has a ceramic membrane with a small electrolytic cell inside. The addition and discharge of the Karl Fischer reagent electrolyte needs to be done manually by the operator, and the lid needs to be opened, which is relatively troublesome. At the same time, the atmospheric humidity is involved every time the lid is opened. If the internal moisture is not purged before the test, the measurement accuracy will be affected. Therefore, a device that can solve the above problems is now needed. Summary of the Invention

[0003] The utility model aims to solve the above-mentioned deficiencies in the prior art and proposes a practical electrolytic cell draining and replenishing device for a Karl Fischer moisture tester with a membrane electrolysis electrode, which has a simple structure, ingenious design, reasonable layout and is practical.

[0004] Therefore, it is now necessary to disclose a device that can solve the above problems: a Karl Fischer moisture tester with a membrane electrolysis electrode electrolysis cell drain and replenishment device, including a Karl Fischer moisture tester, a control circuit, a vacuum pump, an electromagnetic three-way valve, and a dust-proof air sponge filter.

[0005] Among them, the Karl Fischer moisture tester has a membrane electrolysis electrode, and the upper ground joints of the inner and outer electrolytic cells are respectively buckled with a silicone plug buckle cover, and a refill tube, a drain tube, and a reduced pressure drying tube are installed and inserted on each of the two buckle covers. The two buckle covers have a total of two refill tubes connected to the same main refill distribution electromagnetic three-way valve and the main refill tube on the bottle cap of the refill bottle. Similarly, the two buckle covers also have a total of two drain tubes connected to another main drain distribution electromagnetic three-way valve and the main drain tube on the bottle cap of the drain receiving bottle. The air blowpipe on the bottle cap of the refill bottle is connected to the air outlet of the vacuum pump, and the air suction pipe on the bottle cap of the drain receiving bottle is connected to the air outlet of the vacuum pump.

[0006] Connect the vacuum pump air inlet.

[0007] Furthermore, the reduced pressure drying pipe is connected to the drying container, the drying container is filled with desiccant particles, the air vent of the drying container is connected to a breathing valve, and the air inlet of the breathing valve is connected to a dustproof air sponge filter.

[0008] Furthermore, the air inlet of the vacuum pump is connected to a pump air inlet electromagnetic three-way valve, and the three-way valve has an air inlet pipe connected to the atmosphere and connected to the dust-proof air sponge filter.

[0009] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0010] The utility model relates to a Karl Fischer moisture tester having an electrolytic cell draining and replenishing device with a membrane electrolysis electrode. The device adopts the blowing and suction effects of a vacuum pump to realize the replenishing and draining of the electrolytic cell of the Karl Fischer moisture tester. The utility model has a simple structure. Aiming at the problems of time-consuming, labor-intensive and low working efficiency existing in a traditional manual operation mode, a special structure is designed. The device can control the replenishing and adding of liquid according to the test needs, which is convenient and fast. The desiccant particles in the drying container are adopted to keep the air in the Karl Fischer tester dry without blowing away moisture. The utility model is particularly suitable for promotion and application in this field and has a very broad market prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of this application, and do not constitute an improper limitation of the present invention. In the drawings:

[0012] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model.

[0013] Figure 2 Figure 3 This is a schematic diagram of the working principle of an embodiment of the present utility model.

[0014] Figure 4 Figure 5 Figure 6 This is a schematic diagram of the working principle of another embodiment of the present utility model.

[0015] Figure 7 Figure 8 for Figure 1 A partial enlarged schematic diagram.

[0016] Among them, 1. vacuum pump, 2. dust-proof air sponge filter, 3. pump air inlet electromagnetic three-way valve, 4. air suction pipe, 5. breathing valve, 6. drying container, 7. main drain pipe, 8. main drain distribution electromagnetic three-way valve, 9. main replenishment distribution electromagnetic three-way valve, 10. silicone plug cover, 11. air blowpipe, 12. main replenishment pipe, 13. replenishment bottle, 14. external electrolytic cell replenishment pipe, 15. ceramic membrane electrolysis electrode, 16. internal electrolytic cell replenishment pipe, 17. internal electrolytic cell drain pipe, 18. external electrolytic cell drain pipe, 19. Karl Fischer tester body, 20. blowpipe exhaust electromagnetic three-way valve, 21. exhaust pipe, 22. drain receiving bottle. DETAILED DESCRIPTION

[0017] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present invention, and the present invention shall not be limited by the specific embodiments disclosed below.

[0018] Referring to Figures 1, 7, and 8, the present invention provides a Karl Fischer moisture tester having a membrane electrolysis electrode and an electrolytic cell drain and rehydration device, including a Karl Fischer moisture tester 19, a control circuit, a vacuum pump 1, an electromagnetic three-way valve, and a dustproof air sponge filter 2:

[0019] The Karl Fischer moisture tester 19 has a membrane electrolysis electrode, and the upper ground joints of the inner and outer electrolytic cells are respectively buckled with a silicone plug buckle cover 10, and a rehydration tube 14, 16, a drainage tube 17, 18, and a connecting tube of the reduced pressure drying container 6 are installed and inserted on each of the two buckle covers 10. The two buckle covers 10 have a total of two rehydration tubes 14, 16 connected to the same main rehydration distribution electromagnetic three-way valve 9 and the main rehydration tube 12 on the bottle cap of the rehydration bottle 13. Similarly, the two buckle covers 10 also have a total of two drainage tubes 17, 18 connected to another main drainage distribution electromagnetic three-way valve 8 and the main drainage tube 7 on the bottle cap of the drainage receiving bottle 22. The air blowpipe 11 on the bottle cap of the rehydration bottle 13 is connected to the blowpipe exhaust atmospheric electromagnetic three-way valve 20 and connected to the air outlet of the vacuum pump 1, and the air suction pipe 4 on the bottle cap of the drainage receiving bottle 22 is connected to the air inlet of the vacuum pump 1.

[0020] Specifically, the reduced pressure drying pipe is connected to the drying container 6 , the drying container 6 is filled with desiccant particles, the vent of the drying container 6 is connected to the breathing valve 5 , and the air inlet of the breathing valve 5 is connected to the dustproof air sponge filter 2 .

[0021] Specifically, the air inlet of the vacuum pump 1 is connected to a pump air inlet electromagnetic three-way valve 3, and the three-way valve 4 has an air inlet pipe connected to the atmosphere and connected to the dust-proof air sponge filter 2.

[0022] See Figure 2 、 Figure 3When replenishing the Karl Fischer reagent electrolyte to the Karl Fischer electrolytic cell, the vacuum pump 1 is controlled to start working, and the air enters through the dust-proof air sponge filter 2 and passes through the control pump air inlet electromagnetic three-way valve 3. The filtered air enters the vacuum pump 1 outlet through the blowpipe exhaust electromagnetic three-way valve 20 and is blown into the rehydration bottle 13 along the direction of the pipeline arrow to squeeze the Karl Fischer reagent electrolyte along the main rehydration pipe 12 through the main rehydration distribution electromagnetic three-way valve 9 to be distributed to the inner electrolytic cell rehydration pipe 16 to be replenished into the inner electrolytic cell of the ceramic membrane electrode 15, and is distributed to the outer electrolytic cell rehydration pipe 14 to be replenished into the outer electrolytic cell through the control main rehydration distribution electromagnetic three-way valve 9. The rehydration amount is controlled according to the test requirements, and is specifically controlled by the control circuit input of the tester.

[0023] See Figure 4 、 Figure 5 、 Figure 6 When the Karl Fischer moisture test is completed and the electrolyte needs to be drained, the vacuum pump 1 is controlled to start working, and the pump air inlet electromagnetic three-way valve 3 is controlled. Air is drawn out of the drainage receiving bottle 22 through the air suction pipe 4 to generate negative pressure. The main drainage distribution electromagnetic three-way valve 8 is controlled to sequentially draw out the electrolyte from the inner electrolytic cell and the outer electrolytic cell of the ceramic electrode into the main drainage distribution electromagnetic three-way valve 22. During the drainage process, the outlet of the vacuum pump 1 blows out through the controlled blowpipe exhaust electromagnetic three-way valve 20, and the blown air is discharged into the atmosphere through the exhaust pipe 21.

[0024] The technical solutions provided in the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of the present invention. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A Karl Fischer moisture meter with a membrane electrolysis electrode electrolytic cell drain and rehydration device, comprising a Karl Fischer moisture meter, a control circuit, a vacuum pump, an electromagnetic three-way valve, and a dustproof air sponge filter, characterized by: The Karl Fischer moisture tester has an electrolytic cell rehydration device with a membrane electrolysis electrode, and the upper ground joints of the inner and outer electrolytic cells are respectively buckled with a silicone plug buckle cover, and a rehydration tube, a drainage tube, and a reduced pressure drying tube are installed and inserted on each of the two buckle covers. The two buckle covers have a total of two rehydration tubes connected to the same main rehydration distribution electromagnetic three-way valve, and the three-way valve is connected to the main rehydration tube on the bottle cap of the rehydration bottle. Similarly, the two buckle covers also have a total of two drainage tubes connected to another main drainage distribution electromagnetic three-way valve and connected to the main drainage tube on the bottle cap of the drainage receiving bottle. The air blowpipe on the bottle cap of the rehydration bottle is connected to the air outlet of the vacuum pump, and the air suction pipe on the bottle cap of the drainage receiving bottle is connected to the air inlet of the vacuum pump.

2. The electrolytic cell drain and replenishment device for a Karl Fischer moisture meter with a membrane electrolysis electrode according to claim 1, characterized in that: The reduced pressure drying pipe is connected to the drying container, the drying container is filled with desiccant particles, the air vent of the drying container is connected to a breathing valve, and the air inlet of the breathing valve is connected to a dust-proof air sponge filter.

3. The electrolytic cell drain and replenishment device for a Karl Fischer moisture meter with a membrane electrolysis electrode according to claim 1, characterized in that: The air inlet of the vacuum pump is connected to a pump air inlet electromagnetic three-way valve, and the three-way valve has an air inlet pipe connected to the atmosphere and connected to the dust-proof air sponge filter.

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