Online Karl Fischer moisture meter

Abstract

The utility model relates to the technical field of moisture meters, in particular to an on-line Karl Fischer moisture meter which comprises a workbench, a moisture meter body and a detection bottle, an auxiliary liquid inlet mechanism is arranged above the detection bottle, and a reinforcing and supporting mechanism is arranged on the side edge of the moisture meter body. When the online Karl-Fischer moisture meter is used, a needle cylinder filled with a detection sample agent is drawn out by utilizing the abutting action of an elastic baffle plate, and the detection sample agent remained at the bottom end of the needle cylinder can be directly guided into a detection bottle under the abutting flow guide action of the elastic baffle plate, so that the detection sample agent can be directly guided into the detection bottle; and even if a small part of the sample agent is left above the separation blade, the part of the sample agent directly drops outside the device, so that the problem that the residual sample agent drops outside the device is avoided, the accuracy of a subsequent weighing result is ensured on the basis of ensuring that no residual sample agent is left at the tail end of the needle cylinder, and the accuracy of a final detection result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of moisture analyzers, in particular to an online Karl Fischer moisture analyzer. Background Art

[0002] Online Karl Fischer moisture analyzer is an instrument used to monitor and determine the moisture content in liquids or gases in real time. The instrument is based on the principle of Karl Fischer titration and determines the moisture content in the sample through precise chemical reactions.

[0003] Since the existing online Karl Fischer moisture analyzer directly draws the sample through the syringe and injects it into the device for testing when testing the test sample, a small amount of sample will remain at the front end of the syringe after injecting the sample. This part of the hanging sample will drip to the outside of the device along the movement amplitude during the transfer and weighing process of the syringe, which can easily lead to deviations in the subsequent weighing data, thereby directly affecting the accuracy of the final measurement results. However, the existing device has not made corresponding improvements to this problem, and the overall practical effect is poor. Utility Model Content

[0004] The purpose of the present utility model is to solve the above-mentioned problem and to propose an online Karl Fischer moisture meter, which improves the existing online Karl Fischer moisture meter in that when testing the test sample, the sample is directly drawn through the syringe and injected into the device for testing. However, after the syringe injects the sample, a small amount of sample will remain at the front end of the syringe. This part of the hanging medicine will drip to the outside of the device along the movement amplitude during the transfer and weighing process of the syringe, which can easily lead to deviations in the subsequent weighing data, thereby directly affecting the accuracy of the final measurement results. However, the existing device has not made corresponding improvements to this problem.

[0005] An online Karl Fischer moisture analyzer comprises a workbench, a moisture analyzer body and a detection bottle: the moisture analyzer body is arranged above the workbench, the detection bottle is installed on the top outer wall of the moisture analyzer body, an auxiliary liquid inlet mechanism is arranged above the detection bottle, a reinforcement support mechanism is arranged on the side of the moisture analyzer body, a positioning clamping mechanism is arranged below the moisture analyzer body, the auxiliary liquid inlet mechanism comprises a liquid inlet pipe, an elastic baffle, a threaded ring and a sealing cover, the liquid inlet pipe is installed on the top outer wall of the detection bottle, elastic baffles are arranged at equal intervals on the side inner wall of the liquid inlet pipe, a threaded ring is provided on the top outer wall of the liquid inlet pipe, and the sealing cover is installed on the external thread of the threaded ring.

[0006] Preferably, the reinforced support mechanism includes a supporting base plate, a friction pad and a limit block. The bottom outer wall of the moisture meter body is provided with a supporting base plate, a friction pad is provided below the supporting base plate, and the top outer wall of the friction pad is symmetrically provided with a limit block.

[0007] Preferably, the limiting block is configured to be in an "I" shape, and first thread grooves are symmetrically formed on both side outer walls of the limiting block.

[0008] Preferably, the outer wall of the bottom end of the supporting base plate is symmetrically provided with limiting card slots, and the limiting card blocks and the limiting card slots are snap-fitted together.

[0009] Preferably, the outer side wall of the support base plate located at the position of the limiting slot is symmetrically provided with a second thread groove, and the first thread groove and the second thread groove are threadedly mounted with the locking bolt.

[0010] Preferably, the positioning and clamping mechanism includes a first support plate, a second support plate and a placement slot, the top outer wall of the workbench is provided with a first support plate, the second support plate is provided parallel to the top of the first support plate, support columns are symmetrically connected between the top outer wall of the first support plate and the bottom outer wall of the second support plate, and placement slots are provided at equal intervals on the top outer wall of the second support plate.

[0011] Preferably, the side outer wall of the second support plate located at the placement slot position is provided with limiting grooves at equal intervals, and the bottom inner wall of the limiting groove is provided with a resistance spring, and the side outer wall of the resistance spring is connected to the side outer wall of the support back plate.

[0012] Preferably, a resistance pad is provided on the side outer wall of the support back plate, and both the support back plate and the resistance pad are configured as arc-shaped structures, and both the support back plate and the resistance pad are disposed inside the placement groove.

[0013] The beneficial effects of the utility model are:

[0014] 1. When the online Karl Fischer titrator is in use, the liquid inlet tube, elastic baffle, threaded ring and sealing cover are arranged, and the resistance of the elastic baffle is utilized so that when the syringe filled with the test sample is withdrawn, the test sample remaining at the bottom thereof is directly guided into the inside of the test bottle by the resistance and diversion effect of the elastic baffle. Even if a small amount remains above the baffle, it is better than dripping directly onto the outside of the device, thereby eliminating the problem of residual sample dripping onto the outside of the device. Thus, the accuracy of the subsequent weighing results is guaranteed on the basis of ensuring that there is no residual sample at the end of the syringe, thereby ensuring the accuracy of the final test results. The overall structural design is simple and has good practical effects.

[0015] 2. When the online Karl Fischer titrator is in use, a friction pad is added to the bottom of the instrument to increase the contact friction between the device and the workbench, thereby enhancing the overall placement stability of the device. The spring is further used to generate a reaction force when subjected to the resistance force, and the limiting effect of the resistance pad allows the reagent bottle to be stably limited in the middle position of the three resistance pads. This ensures the stability of the testing instrument and the reagent bottle, making it less likely to tip over, thereby ensuring the accuracy of the final test results. The overall structural design is ingenious and has good practical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the auxiliary liquid inlet mechanism of the present utility model;

[0018] Figure 3 For the utility model Figure 2 A in the middle is an enlarged schematic diagram of the three-dimensional structure;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the reinforcement support mechanism of the present utility model;

[0020] Figure 5 For the utility model Figure 4 The enlarged three-dimensional structure diagram at B in the middle;

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the positioning and clamping mechanism of the present utility model.

[0022] In the figure: 1. Workbench; 2. Moisture meter body; 3. Test bottle; 4. Auxiliary liquid inlet mechanism; 41. Liquid inlet pipe; 42. Elastic baffle; 43. Threaded ring; 44. Sealing cover; 5. Reinforcement support mechanism; 51. Support base plate; 52. Friction pad; 53. Limiting block; 54. First thread groove; 55. Limiting slot; 56. Second thread groove; 57. Locking bolt; 6. Positioning clamping mechanism; 61. First support plate; 62. Second support plate; 63. Placement slot; 64. Limiting slot; 65. Resistance spring; 66. Support back plate; 67. Resistance pad. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] When implementing: Figure 1-6 As shown, the online Karl Fischer moisture analyzer includes a workbench 1, a moisture analyzer body 2 and a detection bottle 3: the moisture analyzer body 2 is arranged above the workbench 1, the detection bottle 3 is installed on the top outer wall of the moisture analyzer body 2, an auxiliary liquid inlet mechanism 4 is arranged above the detection bottle 3, a reinforcement support mechanism 5 is arranged on the side of the moisture analyzer body 2, and a positioning clamping mechanism 6 is arranged below the moisture analyzer body 2. The auxiliary liquid inlet mechanism 4 includes a liquid inlet pipe 41, an elastic baffle 42, a threaded ring 43 and a sealing cover 44. The top outer wall of the detection bottle 3 is connected and installed with a liquid inlet pipe 41, the side inner wall of the liquid inlet pipe 41 is evenly spaced and surrounded by elastic baffles 42, the top outer wall of the liquid inlet pipe 41 is provided with a threaded ring 43, and the external thread of the threaded ring 43 is provided with a sealing cover 44; When it is necessary to inject the liquid to be tested into the device, it is first necessary to use a special syringe to extract about half of the syringe dose of the test sample, and then place it on the balance together with the medicine for tare weighing, and then unscrew the sealing cover 44 on the top of the threaded ring 43, and pass the syringe through several elastic baffles 42 in the vertical direction and then inject the sample inside the syringe into the test bottle 3. When the syringe is taken out, due to the resistance of the elastic baffle 42, the small amount of sample remaining at the bottom of the syringe will also be scraped into the test bottle 3. Then put the syringe after squeezing out the sample on the balance for weighing. The negative value displayed on the balance is the sample dose just squeezed into the test bottle 3. The subsequent detection process is carried out according to the existing operating technical means to obtain the final moisture determination data.

[0025] The reinforcement support mechanism 5 includes a support base plate 51, a friction pad 52 and a limit block 53. The bottom outer wall of the moisture meter body 2 is provided with a support base plate 51, and a friction pad 52 is provided below the support base plate 51. The top outer wall of the friction pad 52 is symmetrically provided with a limit block 53. The limit block 53 is set in an "I" shape, and the outer walls on both sides of the limit block 53 are symmetrically penetrated with a first thread groove 54. The bottom outer wall of the support base plate 51 is symmetrically provided with a limit slot 55. The limit block 53 and the limit slot 55 are engaged with each other. The side outer wall of the support base plate 51 at the position of the limit slot 55 is symmetrically opened. A second thread groove 56 is provided, and the first thread groove 54 and the second thread groove 56 are threadedly installed with the locking bolt 57; when the friction pad 52 needs to be installed under the support base plate 51 to strengthen its placement stability, it is first necessary to clamp the limiting groove 55 under the support base plate 51 to the outside of the limiting block 53 from top to bottom. When the limiting block 53 moves to the top inner wall of the limiting groove 55 and fits together, the first thread groove 54 and the second thread groove 56 are in a corresponding overlapping state. Then, the locking bolt 57 is directly passed through the first thread groove 54 and screwed to the bottom end of the second thread groove 56 to complete the installation.

[0026] The positioning clamping mechanism 6 includes a first support plate 61, a second support plate 62 and a placement slot 63. The top outer wall of the workbench 1 is provided with a first support plate 61, and a second support plate 62 is provided above the first support plate 61 in parallel. A support column is symmetrically connected between the top outer wall of the first support plate 61 and the bottom outer wall of the second support plate 62. The top outer wall of the second support plate 62 is evenly spaced through with a placement slot 63. The side outer wall of the second support plate 62 located at the position of the placement slot 63 is evenly spaced and surrounded with a limiting slot 64. The bottom inner wall of the limiting slot 64 is provided with a resistance spring 65. The side outer wall of the resistance spring 65 is connected to the side outer wall of the support back plate 66. The side outer wall of the support back plate 66 is provided with a resistance pad 67. The support back plate 66 and the resistance pad 67 are both arranged in an arc structure, and the support back plate 66 and the resistance pad 67 are both arranged When the bottle is placed inside the second support plate 62, it is only necessary to adjust the bottle to the appropriate position and push it from top to bottom to the middle position of the three contact pads 67. Then, the contact pad 67 is automatically moved to the side by the squeeze action and simultaneously drives the support back plate 66 to move. Then, the movement of the support back plate 66 will automatically squeeze the contact spring 65 to retract to the inside of the limit groove 64 and provide a certain accommodating space for the placement of the bottle. When the bottle moves to the point where the bottom outer wall is in contact with the top outer wall of the first support plate 61, the bottle is stopped from being pushed downward. Then, the reaction force generated by the squeeze of the above-mentioned contact spring 65 will automatically contact the support back plate 66 to move in the opposite direction and make the contact pad 67 fit closely with the side outer wall of the bottle, thereby playing a limiting support effect on the placement of the bottle, as shown in the attached manual. Figure 6 As shown, the outer wall of the top end of the resistance pad 67 is configured as an arc-shaped structure, so that the above-mentioned reagent bottle can be placed more smoothly.

[0027] When the present invention is in use, when the friction pad 52 needs to be installed under the supporting base plate 51 to strengthen its placement stability, it is first necessary to clamp the limiting groove 55 under the supporting base plate 51 to the outside of the limiting block 53 from top to bottom. When the limiting block 53 moves to the top inner wall of the limiting groove 55 and fits in with it, the first thread groove 54 and the second thread groove 56 are in a corresponding overlapping state. Then, the locking bolt 57 is directly passed through the first thread groove 54 and screwed to the bottom end of the second thread groove 56 to complete the installation.

[0028] When the auxiliary detection reagent bottle needs to be placed inside the second support plate 62, it is only necessary to adjust the reagent bottle to the appropriate position and push it from top to bottom to the middle position of the three resistance pads 67. Then, the resistance pad 67 is automatically moved to the side by the squeezing action and synchronously drives the support back plate 66 to move. Then, the movement of the support back plate 66 will automatically squeeze the resistance spring 65 to shrink to the inside of the limit groove 64 and provide a certain accommodation space for the placement of the reagent bottle. When the reagent bottle moves to the point where the bottom outer wall is in contact with the top outer wall of the first support plate 61, the pushing of the reagent bottle downward is stopped. Then, the reaction force generated by the squeezing of the above-mentioned resistance spring 65 will automatically resist the support back plate 66 to move in the opposite direction and make the resistance pad 67 fit tightly with the side outer wall of the reagent bottle, thereby playing a limiting support effect on the placement of the reagent bottle, as shown in the attached manual. Figure 6 As shown, the outer wall of the top of the resistance pad 67 is set to an arc-shaped structure, so that the above-mentioned reagent bottle can be placed more smoothly;

[0029] When the liquid to be tested needs to be injected into the device, a special syringe is first used to extract about half of the test sample, and then placed on the scale together with the medicine for tare weighing. Then, the sealing cover 44 at the top of the threaded ring 43 is unscrewed, and the syringe is passed through several elastic baffles 42 in the vertical direction to inject the sample inside the syringe into the test bottle 3. When the syringe is taken out, due to the resistance of the elastic baffle 42, the small amount of sample remaining at the bottom of the syringe will also be scraped into the test bottle 3. Then, the syringe after squeezing out the sample is placed on the scale for weighing. The negative value displayed on the scale is the sample dose just squeezed into the test bottle 3. The subsequent testing process is carried out according to the existing operating technical means to obtain the final moisture determination data.

[0030] It is noted that the elastic blocking piece 42 is made of an elastic material that can be reset after being deformed after a short period of squeezing. This belongs to the conventional technology and will not be described in detail here.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. Online Karl Fischer moisture analyzer, characterized in that, The invention comprises a workbench (1), a moisture meter body (2) and a detection bottle (3): the moisture meter body (2) is arranged above the workbench (1), the detection bottle (3) is installed on the top outer wall of the moisture meter body (2), an auxiliary liquid inlet mechanism (4) is arranged above the detection bottle (3), a reinforcement support mechanism (5) is arranged on the side of the moisture meter body (2), a positioning clamping mechanism (6) is arranged below the moisture meter body (2), the auxiliary liquid inlet mechanism (4) comprises a liquid inlet pipe (41), an elastic baffle (42), a threaded ring (43) and a sealing cover (44), the top outer wall of the detection bottle (3) is connected and installed with a liquid inlet pipe (41), the inner wall of the side of the liquid inlet pipe (41) is surrounded by elastic baffles (42) at equal intervals, the top outer wall of the liquid inlet pipe (41) is provided with a threaded ring (43), and the outer thread of the threaded ring (43) is provided with a sealing cover (44).

2. The online Karl Fischer moisture analyzer according to claim 1, wherein: The reinforcement support mechanism (5) comprises a support base plate (51), a friction pad (52) and a limit block (53); the support base plate (51) is provided on the bottom outer wall of the moisture meter body (2); the friction pad (52) is provided below the support base plate (51); and the limit block (53) is symmetrically provided on the top outer wall of the friction pad (52).

3. The online Karl Fischer moisture analyzer according to claim 2, wherein: The limiting block (53) is configured in an "I" shape, and first thread grooves (54) are symmetrically formed on the outer walls of both sides of the limiting block (53).

4. The online Karl Fischer moisture analyzer according to claim 3, wherein: The outer wall of the bottom end of the supporting base plate (51) is symmetrically provided with a limit card slot (55), and the limit card block (53) and the limit card slot (55) are engaged with each other.

5. The online Karl Fischer moisture analyzer according to claim 4, wherein: The outer side wall of the support base plate (51) located at the position of the limiting slot (55) is symmetrically provided with a second thread groove (56), and the first thread groove (54) and the second thread groove (56) are threadedly mounted with the locking bolt (57).

6. The online Karl Fischer moisture analyzer according to claim 1, wherein: The positioning and clamping mechanism (6) comprises a first support plate (61), a second support plate (62) and a placement groove (63); the top outer wall of the workbench (1) is provided with the first support plate (61); the second support plate (62) is provided above the first support plate (61) and in parallel; support columns are symmetrically connected between the top outer wall of the first support plate (61) and the bottom outer wall of the second support plate (62); and the top outer wall of the second support plate (62) is provided with placement grooves (63) at equal intervals.

7. The online Karl Fischer moisture analyzer according to claim 6, wherein: The side outer wall of the second support plate (62) located at the placement groove (63) is provided with a limiting groove (64) at equal intervals and surrounded by it, and the inner wall of the bottom end of the limiting groove (64) is provided with a resistance spring (65), and the side outer wall of the resistance spring (65) is connected to the side outer wall of the support back plate (66).

8. The online Karl Fischer moisture analyzer according to claim 7, wherein: The side outer wall of the support back plate (66) is provided with a resistance pad (67), and the support back plate (66) and the resistance pad (67) are both configured as arc-shaped structures, and the support back plate (66) and the resistance pad (67) are both arranged inside the placement groove (63).

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