Sample gas switching mechanism of analyzer

Abstract

The utility model relates to the field of gas detection, in particular to a sample gas switching mechanism of an analyzer, which comprises a box body, a buffer tank I and a buffer tank II, the buffer tank I distributed in a linear array in the vertical direction is arranged in the box body, the buffer tank II is arranged on one side of the buffer tank I, and the buffer tank II is arranged on the other side of the buffer tank II. The box body is internally provided with a gas circuit composed of a plurality of pipelines, and the gas circuit comprises a first circuit, a second circuit, a third circuit, a fourth circuit, a fifth circuit and a sixth circuit. According to the device, a single gas inlet and mixed gas inlet two-in-one gas feeding control effect can be realized by utilizing a multi-line external electric control mode, and the problems that an existing gas analysis and detection switching mechanism lacks a negative-pressure vacuum type gas washing effect and lacks a single feeding and mixed feeding combined mode, so that a gas feeding mode is too single, and the working efficiency is low are solved. And detection diversity is lacked.

Description

Technical Field

[0001] The utility model relates to the field of gas detection, in particular to a sample gas switching mechanism of an analyzer. Background Art

[0002] The main function of gas detection devices is to detect gas concentrations in the environment, monitor air quality, and may warn or trigger corresponding control systems. Common applications include monitoring of harmful gases in industrial production processes, monitoring of air quality in buildings and public places, and monitoring of fire and explosion hazards in safety facilities. These devices can help ensure the safety of the working environment, improve production quality, and in some cases, even save lives.

[0003] After searching, the patent announcement number is CN213516522U, which discloses an online regenerative flue gas sampling and drying pretreatment system, including: two drying chambers, each of which is provided with a desiccant for drying the flue gas, and a heating device for heating the desiccant to regenerate it is installed inside or outside the drying chamber, and the two drying chambers are respectively arranged on a drying gas path and a regeneration gas path; a switching mechanism is used to switch the air inlet and outlet directions of the drying gas path and the regeneration gas path, so that the two drying chambers alternately dry the flue gas and heat and regenerate it; and an analytical instrument is connected at the end position of the drying gas path and the regeneration gas path. The beneficial effect of the utility model is that the desiccant can be regenerated online, which can not only ensure the dryness of the flue gas and reduce the unstable factors of the flue gas analysis system, but also realize the recycling of the desiccant, greatly reducing the consumption of the desiccant.

[0004] In the existing technology, although a certain gas feeding effect can be achieved during use, there are defects: the existing gas analysis and detection switching mechanism lacks a negative pressure vacuum gas washing effect, and lacks a single feeding and mixed feeding merging method, resulting in the gas feeding method being too single and lacking detection diversity. In view of this, we propose an analyzer sample gas switching mechanism to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a sample gas switching mechanism for an analyzer in view of the problems existing in the background technology.

[0006] The technical solution of the utility model: an analyzer sample gas switching mechanism includes a box body, a cache slot one and a cache slot two, wherein the box body is provided with cache slots one distributed in a linear array in the vertical direction, a cache slot two is provided on one side of the cache slot one, and the box body is provided with a gas path composed of a plurality of pipelines, namely: line one, line two, line three, line four, line five and line six.

[0007] When using an analyzer sample gas switching mechanism in the present scheme, the device has two air intake methods when in use. First, line five is used to enter cache slot one. Then, the first is a general feeding method, using line four to control the entry into cache slot two, and then entering the detection device; the second is to use line six to perform vacuum replacement and washing air intake one by one, and directly use line three to enter the interior of the detection device. Line one is used for vacuum replacement and washing of cache slot one, and line two is for vacuum replacement and washing of cache slot two.

[0008] Preferably, mounting buckles are provided on the outer walls on both sides of the box body.

[0009] Preferably, a control valve three is arranged inside the line one, and the control valve three has an electronic control effect.

[0010] Preferably, a control valve 2 is provided inside the line 2.

[0011] Preferably, a control valve 1 is provided on one side of the box body.

[0012] Preferably, a control valve four is provided on one side of the box body.

[0013] Preferably, a display screen 1 is provided on the outer wall of one side of the box body, a display screen 2 is provided on one side of the display screen 1, the display screen 1 is adapted to the cache slot 1, and the display screen 2 is adapted to the cache slot 2.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] 1. The utility model can utilize multiple buffer slots to simultaneously place a pair of different gases for buffering, and then detect them one by one.

[0016] 2. Based on beneficial effect 1, the device can also realize mixed gas feed detection in an all-in-one manner.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 It is a main schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the internal circuit trend of the utility model.

[0021] Reference numerals:

[0022] 1. Box; 2. Display screen 1; 3. Control valve 1; 4. Mounting buckle; 5. Control valve 2; 6. Control valve 3; 7. Control valve 4; 8. Display screen 2; 9. Line 1; 10. Line 2; 11. Line 3; 12. Line 4; 13. Line 5; 14. Line 6; 15. Cache slot 2; 16. Cache slot 1. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0025] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0026] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] See also Figure 1-Figure 3 As shown, this embodiment is an analyzer sample gas switching mechanism, including a box body 1, a buffer slot 16 and a buffer slot 2 15, the box body 1 is provided with a buffer slot 16 distributed in a linear array in the vertical direction, and a buffer slot 2 15 is provided on one side of the buffer slot 16, and a gas path composed of multiple pipelines is provided inside the box body 1, which are: line 1 9, line 2 10, line 3 11, line 4 12, line 5 13 and line 6 14;

[0029] When the device is in use, there are two ways of air intake. First, line five 13 is used to enter buffer tank one 16. Then, the first is a general feeding method, using line four 12 to control the entry into buffer tank two 15, and then entering the detection device; the second is to use line six 14 to perform vacuum replacement air intake one by one, and directly use line three 11 to enter the interior of the detection device. Line one 9 is used for vacuum replacement washing of buffer tank one 16, and line two 10 is for vacuum replacement washing of buffer tank two 15. Vacuum replacement uses the rear end negative pressure to evacuate the gas inside buffer tank one 16 or buffer tank two 15, and is combined with the filling of nitrogen for repeated washing to ensure the purity of the feed gas each time, otherwise the indicators of the detected gas will be confused.

[0030] The outer walls on both sides of the box body 1 are provided with mounting buckles 4, which can facilitate the installation and fixation of the box body 1.

[0031] Example 2

[0032] See also Figure 1-Figure 3 As shown, this embodiment is based on the embodiment 1 and also includes: a control valve three 6 is arranged inside the line one 9, and the control valve three 6 has an electronic control effect, which can facilitate the opening and closing of the pipeline.

[0033] A control valve 2 5 is provided inside the line 2 10 . The control valve 2 5 has an electronic control effect and can facilitate the opening and closing of the pipeline.

[0034] A control valve 3 is provided on one side of the box body 1. The control valve 3 has an electronic control effect and can facilitate the opening and closing of the pipeline.

[0035] A control valve 47 is provided on one side of the box body 1. The control valve 47 has an electronic control effect and can facilitate the opening and closing of the pipeline.

[0036] A display screen 2 is provided on the outer wall of one side of the box body 1, and a display screen 2 8 is provided on one side of the display screen 2. The display screen 2 is adapted to the cache slot 16, and the display screen 2 8 is adapted to the cache slot 2 15. The display screen 2 and the display screen 2 8 can display the air pressure at corresponding positions.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An analyzer sample gas switching mechanism, comprising a housing (1), a first buffer slot (16) and a second buffer slot (15), characterized in that: The box body (1) is provided with a first cache slot (16) distributed in a linear array in the vertical direction, and a second cache slot (15) is provided on one side of the first cache slot (16). The box body (1) is provided with a gas path consisting of a plurality of pipelines, namely: line one (9), line two (10), line three (11), line four (12), line five (13) and line six (14).

2. The analyzer sample gas switching mechanism according to claim 1, characterized in that: The outer walls on both sides of the box body (1) are provided with mounting buckles (4).

3. The analyzer sample gas switching mechanism according to claim 1, characterized in that: A control valve three (6) is arranged inside the line one (9).

4. The analyzer sample gas switching mechanism according to claim 1, characterized in that: A control valve 2 (5) is arranged inside the line 2 (10).

5. The analyzer sample gas switching mechanism according to claim 1, characterized in that: A control valve (3) is provided on one side of the box body (1).

6. The analyzer sample gas switching mechanism according to claim 1, characterized in that: A control valve four (7) is provided on one side of the box body (1).

7. The analyzer sample gas switching mechanism according to claim 1, characterized in that: A display screen one (2) is disposed on the outer wall of one side of the box body (1), and a display screen two (8) is disposed on one side of the display screen one (2). The display screen one (2) is adapted to the cache slot one (16), and the display screen two (8) is adapted to the cache slot two (15).

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