A gas and carbon dioxide measurement conversion device in an optical interference type gas measuring device

Abstract

The utility model discloses a gas and carbon dioxide measurement conversion device in an optical interference type gas detector, which contains a reversing valve, a three-way pipe and a connecting pipe. The first pipe opening of the three-way pipe is connected to the lower pipe opening of the silicone medicine tube of the optical interference type gas detector, the upper pipe opening of the silicone medicine tube is a gas inlet, the second pipe opening of the three-way pipe is connected to the lower pipe opening of the soda lime medicine tube of the optical interference type gas detector, the third pipe opening of the three-way pipe is connected to the upper pipe opening of the soda lime medicine tube through a connecting pipe, the connecting pipe is provided with the reversing valve, and one outlet of the reversing valve is a gas outlet. The utility model does not need to repeatedly plug and unplug the connecting pipe, and only needs to rotate the reversing valve to realize the detection of two types of gases. The process is simple, easy to operate, and high in work efficiency.

Description

Technical Field

[0001] The utility model relates to a gas and carbon dioxide detection technology, in particular to a gas and carbon dioxide measurement conversion device in a light interference type gas measuring device. Background Art

[0002] At present, our team's gas inspectors generally use two types of electronic rechargeable optical interference methane detectors, CJG10 (D) (0-10% CH4) and CJG100 (A) (0-100% CH4), to check gas at various locations underground. These two types of methane detectors have the advantages of small size, light weight, and easy to carry. However, before measuring the carbon dioxide mixed gas, gas inspectors are prone to misleading the pipe or inserting the pipe for a long time, which causes distortion of the carbon dioxide measurement results.

[0003] Currently, during methane measurement, Figure 3 The methane concentration is measured by the pipe connection method. The collected gas passes through the soda lime medicine tube 1, the connecting tube, the silica gel medicine tube 2, and finally enters the calibrator gas chamber; during the measurement of methane and carbon dioxide mixed gas, according to Figure 4 The mixed gas concentration is measured by the connecting pipe method, and the collected gas directly enters the calibrator gas chamber through the silicone medicine tube. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a gas and carbon dioxide determination conversion device in an optical interference type gas determination device which has reasonable design, convenient operation and high working efficiency.

[0005] The technical solution of the utility model is:

[0006] A gas and carbon dioxide measurement conversion device in an optical interference type gas detector comprises a reversing valve, a three-way pipe and a connecting pipe, wherein a first pipe opening of the three-way pipe is connected to a lower pipe opening of a silicone medicine tube of the optical interference type gas detector, an upper pipe opening of the silicone medicine tube is a gas inlet, a second pipe opening of the three-way pipe is connected to a lower pipe opening of a soda lime medicine tube of the optical interference type gas detector, a third pipe opening of the three-way pipe is connected to an upper pipe opening of the soda lime medicine tube through a connecting pipe, the reversing valve is arranged on the connecting pipe, and an outlet of the reversing valve is a gas outlet.

[0007] Furthermore: the connecting pipe is a soft rubber tube.

[0008] The beneficial effects of the utility model are:

[0009] 1. The utility model does not need to repeatedly plug and unplug the connecting pipe, and only needs to rotate the reversing valve to realize the detection of two types of gases. The process is simple, easy to operate, and high working efficiency.

[0010] 2. Before the utility model is used, the tile inspector needs 10 seconds of catheterization time, and one measuring point needs at least 9 catheterizations, and one measuring point needs 90 seconds of catheterization time. After using the catheterization process of the conversion device, the tile inspector only needs to turn the three-way valve to complete the catheterization process, which only takes 1 second of catheterization time, greatly improving the catheterization efficiency.

[0011] 3. The utility model has a simple process for measuring the gas and carbon dioxide mixed gas conduit, which is easy for gas inspectors to master, avoids the problem of reversed pipes, improves the authenticity of the inspection results, provides a basis for gas control in mining working faces, and has great safety benefits.

[0012] 4. The utility model has a simple structure, is easy to be mastered by tile inspectors, and has a low production cost, and has good economic benefits after promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is one of the structural schematic diagrams of a gas and carbon dioxide measurement conversion device in a light interference type gas measuring device;

[0014] Figure 2 The second structural schematic diagram of a gas and carbon dioxide measurement conversion device in a light interference type gas measuring device;

[0015] Figure 3 This is one of the structural diagrams of a light interference type gas measuring device in the prior art;

[0016] Figure 4 This is the second structural diagram of the optical interference type gas measuring device in the prior art. DETAILED DESCRIPTION

[0017] Example 1: See Figure 3 In the figure, 1-soda lime medicine tube, 2-silica gel medicine tube, 3-gas outlet, 4-reversing valve, 5-gas inlet, 6-connecting pipe, 7-three-way pipe.

[0018] A gas and carbon dioxide measurement conversion device in an optical interference type gas detector comprises a reversing valve 4, a three-way pipe 7 and a connecting pipe 7, wherein: a first pipe opening of the three-way pipe 7 is connected to the lower pipe opening of a silicone medicine tube 2 of the optical interference type gas detector, the upper pipe opening of the silicone medicine tube 2 is a gas inlet 5, a second pipe opening of the three-way pipe 7 is connected to the lower pipe opening of a soda lime medicine tube 1 of the optical interference type gas detector (the two are connected by a connecting pipe of another section), a third pipe opening of the three-way pipe 7 is connected to the upper pipe opening of the soda lime medicine tube 1 through a connecting pipe 6, a reversing valve 4 is arranged on the connecting pipe 7, and one outlet of the reversing valve 4 is a gas outlet 3.

[0019] Optimal solution: the connecting pipe 6 is a soft rubber tube that can be bent and can be a transparent tube, and the reversing valve 4 is a three-way valve.

[0020] When measuring the methane concentration, turn the reversing valve 4 and point the middle pointer of the three-way valve vertically downward. The collected gas enters the silica gel tube 2 from the gas inlet 5, then passes through the soda lime tube 1, and finally enters the calibrator gas chamber through the gas outlet 3, thereby obtaining the concentration value and completing a test.

[0021] Example 2: See Figure 4 This embodiment is basically the same as the first embodiment, and the similarities are not repeated. The difference is that when measuring the mixed gas of methane and carbon dioxide, the reversing valve 4 is turned to point the middle direction of the reversing valve 4 vertically upward. At this time, the collected gas enters the silicone medicine tube 2 through the gas inlet 5, and then enters the connecting pipe 6 through the third pipe opening of the three-way pipe 7. Finally, the gas enters the calibrator gas chamber through the gas outlet 3, thereby obtaining the concentration value and completing a detection.

[0022] In this embodiment, the gas does not pass through the soda lime medicine tube 1 but only passes through the silica gel medicine tube 2 .

[0023] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification made according to the technical essence of the utility model still falls within the scope of the technical solution of the utility model.

Claims

1. A gas and carbon dioxide measurement conversion device in an optical interference type gas measuring instrument, comprising a reversing valve, a three-way pipe and a connecting pipe, characterized in that: The first pipe opening of the three-way pipe is connected to the lower pipe opening of the silicone medicine tube of the optical interference type gas detector, the upper pipe opening of the silicone medicine tube is a gas inlet, the second pipe opening of the three-way pipe is connected to the lower pipe opening of the soda lime medicine tube of the optical interference type gas detector, the third pipe opening of the three-way pipe is connected to the upper pipe opening of the soda lime medicine tube through a connecting pipe, the reversing valve is arranged on the connecting pipe, and one outlet of the reversing valve is a gas outlet.

2. The gas and carbon dioxide measurement conversion device in a light interference type gas measuring device according to claim 1, characterized in that: The connecting pipe is a soft rubber pipe.

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