Device for testing oxygen absorption capacity of oxygen absorbent

Abstract

The utility model relates to the technical field of oxygen uptake capacity testing of oxygen absorbents, in particular to an oxygen uptake capacity testing device of an oxygen absorbent. The oxygen uptake capacity testing device for the oxygen absorbent comprises a U-shaped pipe with scales, a U-shaped pipe liquid inlet and a U-shaped pipe measuring section are arranged on the U-shaped pipe with the scales, a detection box is connected to the U-shaped pipe measuring section, an oxygen absorbent placing area is arranged on the U-shaped pipe measuring section, a traction block is arranged in the detection box, an infrared detection module is arranged in the traction block, and the infrared detection module is connected with the U-shaped pipe liquid inlet. U-shaped pipe measuring section scale marks are arranged on the vertical wall of the U-shaped pipe measuring section. Through cooperative use of the U-shaped pipe with the scales and the infrared detection module, after water adding is completed, the water level is monitored through the infrared detection module, and the influence of human factors is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen absorption capacity testing of oxygen absorbents, in particular to a device for testing the oxygen absorption capacity of oxygen absorbents. Background Art

[0002] Oxygen absorbers are widely used in the food and pharmaceutical industries. Their main function is to absorb oxygen in food and drug packaging, reduce the oxygen concentration in the packaging and maintain it for a period of time, thereby preventing food and drugs from oxidizing during storage, transportation and use.

[0003] In order to ensure the quality of food and medicine, quality control and performance research of oxygen absorbers are carried out. Oxygen absorption capacity is the most important performance indicator of oxygen absorbers. Currently, there is a lack of relevant testing methods for the oxygen absorption capacity of oxygen absorbers.

[0004] Traditional methods for testing oxygen absorption capacity of oxygen absorbers have many shortcomings. Chinese patent application CN1995966A, published on July 11, 2007, discloses a method for testing oxygen absorption capacity of deoxidizers, but this method is overly dependent on manual operation. The simple test using a measuring cylinder and a water pool requires manual reading of the liquid level at regular intervals, and the air inside the reaction space needs to be replaced after each test. This is not only cumbersome to operate, but also has low accuracy and is easily affected by human factors. Utility Model Content

[0005] According to the above deficiencies in the prior art, the purpose of the utility model is to provide an oxygen absorption capacity test device for an oxygen absorbent. Through the coordinated use of a U-shaped tube with a scale and an infrared detection module, after adding water, the water level is monitored by the infrared detection module, which greatly reduces the influence of human factors; through the coordination of the oxygen absorbent placement area and the traction block, the air in the U-shaped tube measuring section can be removed. After the first test is completed, the pull rod is pulled to the left to make the traction block slide to the left, the detachable sealing head is opened, the sealing head is closed after the oxygen absorbent is taken out, and water is continued to be added to the liquid inlet of the U-shaped tube until the liquid level reaches the pipe mouth of the U-shaped tube measuring section to discharge the air in the U-shaped tube measuring section, and then the first-level drain port is opened to discharge excess water, the liquid level drops to the initial liquid level, the air in the U-shaped tube measuring section is replaced, the oxygen absorbent is put back into the oxygen absorbent placement area, the pull rod is pushed to the right to make the traction block slide to the right, the infrared detection module slides with the traction block to the top of the U-shaped tube measuring section, the traction block forms a seal with the sealing bottom plate, and repeated tests can be performed, which realizes more convenient and quick replacement of air and adjustment of the initial position of the liquid level.

[0006] The utility model is realized by adopting the following technical solutions:

[0007] The oxygen absorbent oxygen absorption capacity testing device comprises a U-shaped tube with a scale, the U-shaped tube with a scale is provided with a U-shaped tube liquid inlet and a U-shaped tube measuring section, the U-shaped tube measuring section is connected to a detection box, the U-shaped tube measuring section is provided with an oxygen absorbent placement area, a traction block is provided inside the detection box, an infrared detection module is provided inside the traction block, and a U-shaped tube measuring section scale line is provided on the vertical wall of the U-shaped tube measuring section.

[0008] The graduated U-shaped tube is placed vertically when in use, and a three-level liquid discharge port is arranged at the bottom of the graduated U-shaped tube.

[0009] A primary liquid discharge port and a secondary liquid discharge port are arranged on the outer side of the vertical wall of the U-shaped tube liquid inlet, and the primary liquid discharge port is located above the secondary liquid discharge port.

[0010] The oxygen absorbent placement area is provided with a detachable sealing head, and a breathable support area is provided inside the oxygen absorbent placement area, and the breathable support area extends to the inside of the U-shaped tube measuring section.

[0011] The traction block is connected with a pull rod, and the pull rod can drive the traction block to move back and forth like a piston in the detection box.

[0012] A sealing bottom plate is arranged below the detection box, the sealing bottom plate is sealingly connected to the pipe opening of the measuring section of the U-shaped pipe, and a horizontal sliding sealing surface is arranged at the bottom of the traction block.

[0013] The infrared detection module is located near the horizontal sliding sealing surface, the sealing bottom plate is slidably connected to the horizontal sliding sealing surface, a sealing state is formed between the sealing bottom plate and the horizontal sliding sealing surface, and the sealing bottom plate is sealingly connected to the pipe opening of the U-shaped pipe measuring section.

[0014] The infrared detection module is nested in the traction block, and the traction block will not hinder the normal use of the infrared detection module.

[0015] The infrared detection module is connected with a data processor, and the data processor is located outside the detection box.

[0016] The working principle of the utility model is:

[0017] Before the test starts, the measuring section of the U-shaped tube is in an open state. Water is added into the graduated U-shaped tube through the liquid inlet of the U-shaped tube. Then, the first liquid discharge port is opened to adjust the liquid level in the graduated U-shaped tube. After that, the detachable sealing head is removed, the oxygen absorber is placed in the breathable support area, and the detachable sealing head is put back in place. The pull rod is pushed to the right to make the traction block slide to the right until the measuring section of the U-shaped tube is in a sealed state. The infrared detection module starts to work, reads, displays, and records the liquid level. After the test is completed, the pull rod is pulled to the left to make the traction block slide to the left, the detachable sealing head is opened, the oxygen absorber is taken out and then the sealing head is closed. Water is continuously added through the liquid inlet of the U-shaped tube until the liquid surface reaches the nozzle of the measuring section of the U-shaped tube, and the air in the measuring section of the U-shaped tube is discharged. Then, the first liquid discharge port is opened, the excess water is discharged, and the liquid level drops to the initial liquid level, realizing the replacement of the air in the measuring section of the U-shaped tube. The pull rod is pushed to the right to make the traction block slide to the right, and the infrared detection module slides above the measuring section of the U-shaped tube along with the traction block. The traction block forms a seal with the sealing bottom plate, and then repeated tests can be carried out.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] By using the oxygen absorption capacity test device of the present utility model, through the combined use of the graduated U-shaped tube and the infrared detection module, after adding water, the water level is monitored by the infrared detection module, greatly reducing the influence of human factors. Through the cooperation of the oxygen absorber placement area and the traction block, the air in the measuring section of the U-shaped tube can be excluded. After the first test is completed, the pull rod is pulled to the left to make the traction block slide to the left, the detachable sealing head is opened, the oxygen absorber is taken out and then the sealing head is closed. Water is continuously added to the liquid inlet of the U-shaped tube until the liquid surface reaches the nozzle of the measuring section of the U-shaped tube, and the air in the measuring section of the U-shaped tube is discharged. Then, the first liquid discharge port is opened, the excess water is discharged, and the liquid level drops to the initial liquid level, realizing the replacement of the air in the measuring section of the U-shaped tube. The oxygen absorber is put back into the oxygen absorber placement area, the pull rod is pushed to the right to make the traction block slide to the right, and the infrared detection module slides above the measuring section of the U-shaped tube along with the traction block. The traction block forms a seal with the sealing bottom plate, and then repeated tests can be carried out, realizing more convenient and rapid replacement of air and adjustment of the initial liquid level position. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the oxygen absorption capacity test device of the present utility model;

[0021] Figure 2 For the present utility model Figure 1 The structural diagram at position A;

[0022] Figure 3 It is a schematic structural diagram of the oxygen absorption capacity test device of the present utility model after one test is completed;

[0023] In the figure: 1. graduated U-shaped tube; 2. liquid inlet of U-shaped tube; 3. measuring section of U-shaped tube; 4. detection box; 5. infrared detection module; 6. primary drain port; 7. tertiary drain port; 8. scale lines of measuring section of U-shaped tube; 9. oxygen absorber placement area; 10. pull rod; 11. traction block; 12. sealed bottom plate; 13. horizontal sliding sealing surface; 14. data processor; 15. secondary drain port; 16. detachable sealing head; 17. breathable support area. Detailed implementation mode

[0024] In order to make the purpose and technical solutions of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] Embodiment 1

[0026] As Figure 1 shown, an oxygen absorber oxygen absorption capacity testing device includes a graduated U-shaped tube 1, on which there are a liquid inlet 2 of the U-shaped tube and a measuring section 3 of the U-shaped tube. A detection box 4 is connected to the measuring section 3 of the U-shaped tube. There is an oxygen absorber placement area 9 on the measuring section 3 of the U-shaped tube. Inside the detection box 4, there is a traction block 11, and inside the traction block 11, there is an infrared detection module 5. Scale lines 8 of the measuring section of the U-shaped tube are provided on the vertical wall of the measuring section 3 of the U-shaped tube. When in use, the graduated U-shaped tube 1 is placed vertically, and a tertiary drain port 7 is provided at the bottommost end of the graduated U-shaped tube 1. On the outer side of the vertical wall of the liquid inlet 2 of the U-shaped tube, there are a primary drain port 6 and a secondary drain port 15, and the primary drain port 6 is above the secondary drain port 15. As Figures 2-3 shown, a detachable sealing head 16 is provided on the oxygen absorber placement area 9, and inside the oxygen absorber placement area 9, there is a breathable support area 17, and the breathable support area 17 extends into the measuring section 3 of the U-shaped tube. A pull rod 10 is connected to the traction block 11, and the pull rod 10 can drive the traction block 11 to move back and forth in a piston motion inside the detection box 4. A sealed bottom plate 12 is provided below the detection box 4, and a horizontal sliding sealing surface 13 is provided at the bottom of the traction block 11. The infrared detection module 5 is located on one side close to the horizontal sliding sealing surface 13. The sealed bottom plate 12 is slidably connected to the horizontal sliding sealing surface 13, and a sealed state is formed between the sealed bottom plate 12 and the horizontal sliding sealing surface 13. When the infrared detection module 5 slides to above the measuring section 3 of the U-shaped tube along with the traction block 11, the traction block 11 forms a seal with the sealed bottom plate 12, and thus the graduated U-shaped tube 1 can only communicate with the outside air through the liquid inlet 2 of the U-shaped tube. A data processor 14 is connected to the infrared detection module 5, and the data processor 14 is located outside the detection box 4.

[0027] For the above-mentioned oxygen absorber oxygen absorption capacity testing device, during operation, it includes the following steps:

[0028] (1)Before the test starts, the U-shaped tube measurement section 3 is in an open state. Water is added to the graduated U-shaped tube 1 through the U-shaped tube liquid inlet 2. Then, the first-stage drain port 6 is opened to adjust the liquid level in the graduated U-shaped tube 1. After that, the detachable sealing head 16 is removed, the oxygen absorber is placed in the breathable support area 17, the detachable sealing head 16 is put back in place, and the pull rod 10 is pushed to the right to make the traction block 11 slide to the right until the U-shaped tube measurement section 3 is in a sealed state, and the infrared detection module 5 starts to work; (2) After the test is completed, the pull rod 10 is pulled to the left to make the traction block 11 slide to the left, the detachable sealing head 16 is opened, the oxygen absorber is taken out and then the sealing head is closed. Water is continuously added to the U-shaped tube liquid inlet 2 until the liquid level reaches the nozzle of the U-shaped tube measurement section to discharge the air in the U-shaped tube measurement section 3. Then, the first-stage drain port 6 is opened to drain the excess water, and the liquid level drops to the initial liquid level, realizing the replacement of the air in the U-shaped tube measurement section 3. The oxygen absorber is put back into the oxygen absorber placement area 9, the pull rod 10 is pushed to the right to make the traction block 11 slide to the right, and the infrared detection module 5 slides with the traction block 11 above the U-shaped tube measurement section 3. The traction block 11 forms a seal with the sealing bottom plate 12, and then the test can be carried out again.

Claims

1. An oxygen absorption capacity testing device for an oxygen absorber, characterized in that, The invention comprises a U-shaped tube (1) with a scale, wherein the U-shaped tube (1) is provided with a U-shaped tube liquid inlet (2) and a U-shaped tube measuring section (3), the U-shaped tube measuring section (3) is connected to a detection box (4), an oxygen absorbent placement area (9) is provided on the U-shaped tube measuring section (3), a traction block (11) is provided inside the detection box (4), an infrared detection module (5) is provided inside the traction block (11), and a U-shaped tube measuring section scale line (8) is provided on the vertical wall of the U-shaped tube measuring section (3).

2. The oxygen absorption capacity testing device for an oxygen absorber according to claim 1, characterized in that, The graduated U-shaped tube (1) is placed vertically when in use, and a three-level liquid discharge port (7) is provided at the bottom end of the graduated U-shaped tube (1).

3. The oxygen absorption capacity testing device for the oxygen absorber according to claim 1, characterized in that, A primary liquid discharge port (6) and a secondary liquid discharge port (15) are provided on the outer side of the vertical wall of the U-shaped tube liquid inlet (2), and the primary liquid discharge port (6) is located above the secondary liquid discharge port (15).

4. The oxygen absorption capacity testing device for the oxygen absorber according to claim 1, characterized in that, The oxygen absorbent placement area (9) is provided with a detachable sealing head (16), and a breathable support area (17) is provided inside the oxygen absorbent placement area (9), and the breathable support area (17) extends to the inside of the U-shaped tube measuring section (3).

5. The oxygen absorption capacity testing device for oxygen absorbers according to claim 1, characterized in that, The traction block (11) is connected to a pull rod (10), and the pull rod (10) can drive the traction block (11) to move back and forth in a piston manner in the detection box (4).

6. The oxygen absorption capacity testing device for the oxygen absorber according to claim 5, characterized in that A sealing bottom plate (12) is provided below the detection box (4), and the sealing bottom plate (12) is sealingly connected to the pipe opening of the U-shaped pipe measuring section. A horizontal sliding sealing surface (13) is provided at the bottom of the traction block (11).

7. The oxygen absorber oxygen absorption capacity testing device according to claim 6, characterized in that, The infrared detection module (5) is located close to a side of the horizontal sliding sealing surface (13), the sealing bottom plate (12) is slidably connected to the horizontal sliding sealing surface (13), and a sealing state is formed between the sealing bottom plate (12) and the horizontal sliding sealing surface (13).

8. The oxygen absorption capacity testing device for oxygen absorbers according to claim 1, characterized in that, The infrared detection module (5) is connected to a data processor (14), and the data processor (14) is located outside the detection box (4).

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