Calibrating device for trace oxygen analyzer

Abstract

The utility model discloses a trace oxygen analyzer calibrating device which comprises an analyzer, a gas outlet pipe is arranged at one end above the analyzer in a penetrating mode, a gas inlet pipe is arranged at one end of the outer side of the analyzer in a penetrating mode, and connecting pipes are correspondingly arranged in the gas outlet pipe and the gas inlet pipe. Second mounting blocks are fixedly connected to the two ends of the outer side of the air outlet pipe and the two ends of the outer side of the air inlet pipe, limiting grooves are formed in the second mounting blocks, and the limiting blocks correspond to the limiting grooves. A positioning block, a positioning groove, a limiting block and a limiting groove are arranged, so that the gas inlet part and the gas outlet part of the oxygen analyzer can be sealed and fixed, the phenomenon that the detection process is affected due to the fact that the sealing performance of the gas inlet part and the gas outlet part of the oxygen analyzer is affected is avoided, and the verification accuracy of the oxygen analyzer is improved.

Description

Technical Field

[0001] The utility model relates to the field of oxygen analyzers, and particularly relates to a calibration device for trace oxygen analyzers. Background Technique

[0002] Oxygen analyzers are essential analytical instruments in the gas field and have been widely used in fields such as the chemical industry, metallurgical industry, environmental monitoring, medical and health, aerospace, and electronics industry. According to different detection ranges, oxygen analyzers can be divided into percentage oxygen analyzers and trace oxygen analyzers. Among them, percentage oxygen analyzers can be divided into electrochemical principle, zirconia principle, and paramagnetic principle according to the principle. Trace oxygen analyzers can be divided into electrochemical principle and zirconia principle;

[0003] When the existing trace oxygen analyzer detects the environmental oxygen content, since both its air inlet and air outlet are in a state of being connected to the outside world, when the oxygen analyzer is in use, the connection strength and sealing performance between the air inlet, air outlet of the oxygen analyzer and the pipeline are relatively low, and it is easy to produce the phenomenon that gas in the non-sampling environment enters, which affects the detection process. Content of the Utility Model

[0004] The purpose of the utility model is to provide a calibration device for a trace oxygen analyzer, which solves the problem of relatively low connection strength and sealing performance between the air inlet and outlet ends of the oxygen analyzer and the pipeline in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme. A calibration device for a trace oxygen analyzer includes an analyzer. One end of the upper part of the analyzer is penetrated and provided with an air outlet pipe, and one end of the outer side of the analyzer is penetrated and provided with an air inlet pipe. Connection pipes are correspondingly arranged inside the air outlet pipe and the air inlet pipe, and two ends of the outer sides of the air outlet pipe and the air inlet pipe are fixedly connected with second mounting blocks;

[0006] Two ends of the outer side of the connection pipe are fixedly connected with first mounting blocks. The first mounting blocks correspond to the second mounting blocks. The inner end of the first mounting block is fixedly connected with a limiting block, and a limiting groove is opened inside the second mounting block. The limiting block corresponds to the limiting groove.

[0007] As a further description of the above technical scheme: A slot is arranged inside the limiting block, and a spring is fixedly connected to one end of the inner side of the slot.

[0008] As a further description of the above technical scheme: The other end of the spring is fixedly connected with a limiting plate, and the other end of the limiting plate is fixedly connected with a positioning block.

[0009] As a further description of the above technical scheme: A positioning groove is penetrated through the upper end of the limiting groove, and the positioning block corresponds to the positioning groove.

[0010] As a further description of the above technical solution: mounting plates are fixedly connected to the other two ends of the air outlet pipe and the air inlet pipe, and mounting plates are also fixedly connected to the other two ends of the connecting pipe, and the two pairs of mounting plates are cross-corresponding.

[0011] As a further description of the above technical solution: positioning bolts are threadedly connected to the mounting plates, and nuts are threadedly connected to the positioning bolts.

[0012] As a further description of the above technical solution: a display screen is arranged at the outer end of the analyzer, control buttons are arranged below the display screen, and an anti-slip bracket is arranged at the bottom of the analyzer.

[0013] The utility model has the following beneficial effects:

[0014] 1. Compared with the prior art, the micro-oxygen analyzer calibration device can correspond to the connecting pipe by arranging the mounting components at the air inlet pipe and the air outlet pipe ends, and can realize the sealing and fixing treatment of the air inlet part and the air outlet part of the oxygen analyzer by arranging the positioning block, the positioning groove, the limiting block and the limiting groove, avoiding the phenomenon that the detection process is affected due to the influence on the sealing performance of the air inlet and air outlet parts of the oxygen analyzer, and improving the calibration accuracy;

[0015] 2. Compared with the prior art, the micro-oxygen analyzer calibration device can realize double locking by arranging the mounting plate, the positioning bolt and the nut, thereby improving the sealing performance of the connection of the two pipes.

[0016] The additional aspects and advantages of the utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the utility model with reference to the drawings and embodiments;

[0018] Figure 1 is the overall structural schematic diagram of the utility model.

[0019] Figure 2 is the internal structural schematic diagram of the limiting block of the utility model.

[0020] Figure 3 is the pipeline connection structural schematic diagram of the utility model.

[0021] Legend description:

[0022] 1. Analyzer; 2. Exhaust pipe; 3. Display screen; 4. Control button; 5. Anti-slip bracket; 6. Intake pipe; 7. Limit groove; 8. Limit block; 9. Connecting pipe; 10. First mounting block; 11. Positioning block; 12. Second mounting block; 13. Spring; 14. Groove; 15. Limit plate; 16. Mounting plate; 17. Nut; 18. Positioning bolt; 19. Positioning groove. Detailed implementation manners

[0023] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0024] Referring to Figures 1-3 , an embodiment provided by the present invention, a trace oxygen analyzer calibration device, includes an analyzer 1. One end of the upper part of the analyzer 1 is penetrated and provided with an exhaust pipe 2, and one end of the outer side of the analyzer 1 is penetrated and provided with an intake pipe 6. Connecting pipes 9 are correspondingly arranged inside the exhaust pipe 2 and the intake pipe 6. The outer sides of both ends of the exhaust pipe 2 and the intake pipe 6 are fixedly connected with second mounting blocks 12. Through the connecting pipe 9, it can be connected to the exhaust pipe 2 and the intake pipe 6, so that the detection gas can be introduced into the analyzer 1 through the connecting pipe 9, thereby completing the calibration operation of the analyzer;

[0025] Both outer ends of the connecting pipe 9 are fixedly connected with first mounting blocks 10. The first mounting blocks 10 and the second mounting blocks 12 correspond to each other. The inner end of the first mounting block 10 is fixedly connected with a limit block 8. A limit groove 7 is opened inside the second mounting block 12. The limit block 8 and the limit groove 7 correspond to each other. A groove 14 is arranged inside the limit block 8. One end of the inner side of the groove 14 is fixedly connected with a spring 13. The other end of the spring 13 is fixedly connected with a limit plate 15. The other end of the limit plate 15 is fixedly connected with a positioning block 11. A positioning groove 19 is penetrated through the upper end of the limit groove 7. The positioning block 11 and the positioning groove 19 correspond to each other. The limit block 8 on the first mounting block 10 is corresponded to the limit groove 7 on the second limit block 12. Press the positioning blocks 11 at the upper and lower ends inward, so that the positioning blocks 11 contract inward. At this time, the limit block 8 is sent into the limit groove 7. When the positioning block 11 passes through the position of the positioning groove 19, it can pop out outward through the internal spring 13, so as to be clamped and fixed with the positioning groove 19, ensuring the sealing performance and convenience at the connection of the two;

[0026] The other two ends of the air outlet pipe 2 and the air inlet pipe 6 are fixedly connected with mounting plates 16. The other two ends of the connecting pipe 9 are also fixedly connected with mounting plates 16. And the two pairs of mounting plates 16 are cross-corresponding. The mounting plates 16 on the air outlet pipe 2 and the air inlet pipe 6 are in different positions from the mounting plates 16 on the connecting pipe 9, but they can overlap with each other after installation. The mounting plates 16 are threadedly connected with positioning bolts 18, and the positioning bolts 18 are threadedly connected with nuts 17. The positioning bolts 18 can be used to lock them, and under the action of the nuts 17, they can be fixed, so as to realize the sealing and fixing treatment of the air inlet part and the air outlet part of the oxygen analyzer, avoid the phenomenon that the detection process is affected due to the influence on the sealing performance of the air inlet and air outlet parts of the oxygen analyzer, and improve the accuracy of its verification;

[0027] A display screen 3 is arranged at the outer end of the analyzer 1. Control buttons 4 are arranged below the display screen 3. An anti-slip bracket 5 is arranged at the bottom of the analyzer 1. By arranging the display screen 3, it is convenient for the staff to observe the data of the analyzer 1, improving the practicability and convenience of the device. At the same time, arranging the control buttons 4 can control the entire analyzer 1 to ensure its normal use. Arranging the anti-slip bracket 5 at the bottom can improve the anti-slip performance of the analyzer 1 during use.

[0028] Working principle: When the device is in use, first connect the external connecting pipe 9 with the air inlet pipe 6 and the air outlet pipe 2. Then, align the limiting block 8 on the first mounting block 10 with the limiting groove 7 on the second limiting block 12. Press the positioning blocks 11 at the upper and lower ends inward, so that the positioning blocks 11 contract inward. At this time, send the limiting block 8 into the internal of the limiting groove 7. When the positioning blocks 11 pass through the positioning groove 19, the internal spring 13 can make them pop out outward, so as to be clamped and fixed with the positioning groove 19, ensuring the sealing and convenience of the connection between the two. At this time, the mounting plates 16 at the other two ends of the air outlet pipe 2, the air inlet pipe 6 and the connecting pipe 9 overlap. The positioning bolts 18 can be used to lock them, and under the action of the nuts 17, they can be fixed, so as to realize the sealing and fixing treatment of the air inlet part and the air outlet part of the oxygen analyzer, avoid the phenomenon that the detection process is affected due to the influence on the sealing performance of the air inlet and air outlet parts of the oxygen analyzer, and improve the accuracy of its verification.

[0029] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can be made without departing from the purpose of the present invention.

Claims

1. A micro oxygen analyzer calibration device, comprising an analyzer (1), characterized in that, An air outlet pipe (2) is penetrated and opened at the upper end of the analyzer (1), and an air inlet pipe (6) is penetrated and opened at the outer end of the analyzer (1). Connection pipes (9) are correspondingly arranged inside the air outlet pipe (2) and the air inlet pipe (6). Second mounting blocks (12) are fixedly connected to both outer ends of the air outlet pipe (2) and the air inlet pipe (6). First mounting blocks (10) are fixedly connected to both outer ends of the connection pipe (9). The first mounting blocks (10) and the second mounting blocks (12) correspond to each other. A limiting block (8) is fixedly connected to the inner end of the first mounting block (10). A limiting groove (7) is formed inside the second mounting block (12). The limiting block (8) and the limiting groove (7) correspond to each other.

2. The micro-oxygen analyzer calibration device according to claim 1, characterized in that, A slot (14) is arranged inside the limiting block (8). A spring (13) is fixedly connected to the inner end of the slot (14).

3. The micro-oxygen analyzer calibration device according to claim 2, characterized in that, The other end of the spring (13) is fixedly connected to a limiting plate (15). The other end of the limiting plate (15) is fixedly connected to a positioning block (11).

4. A micro-oxygen analyzer calibration device according to claim 3, characterized in that, A positioning groove (19) is penetrated and arranged at the upper end of the limiting groove (7). The positioning block (11) and the positioning groove (19) correspond to each other.

5. A micro-oxygen analyzer calibration device according to claim 1, characterized in that, Mounting plates (16) are fixedly connected to the other two ends of the air outlet pipe (2) and the air inlet pipe (6). The other two ends of the connection pipe (9) are also fixedly connected to mounting plates (16), and the two pairs of mounting plates (16) are cross-corresponding.

6. The calibration device for a trace oxygen analyzer according to claim 5, characterized in that, Positioning bolts (18) are threadedly connected to the mounting plates (16). Nuts (17) are threadedly connected to the positioning bolts (18).

7. An apparatus for calibrating a trace oxygen analyzer according to claim 1, characterized in that, A display screen (3) is arranged at the outer end of the analyzer (1). Control buttons (4) are arranged below the display screen (3). An anti-slip bracket (5) is arranged at the bottom of the analyzer (1).

Images