Online oxygen analysis device

Abstract

The utility model relates to the technical field of gas analysis, and discloses an on-line oxygen analysis device, which comprises an analyzer body, the side wall of the analyzer body is provided with an adsorption assembly for shielding a window and filtering gas, and the adsorption assembly comprises a first cover body, an extension pipe, a second cover body and a flange, the extension tube is fixedly connected with the analyzer body and directly faces the window, the second cover body is detachably connected with the extension tube, the first cover body is detachably connected with the extension tube through the flange, the second cover body is sleeved in a cavity of the first cover body, and air holes are formed in the wall surfaces of the first cover body and the second cover body. The first cover body and the second cover body are used for preliminarily filtering gas entering the analyzer body, dust and impurities in the gas are removed, the first cover body can be detached and cleaned by pulling the first cover body to be separated from the blocking edge, the second cover body is rotated to be separated from the extension pipe, and then the second cover body is detached and cleaned; and each layer of filtering is detachable, so that later cleaning and maintenance are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas analysis, and in particular relates to an online oxygen analysis device. Background Art

[0002] The prior art discloses an online oxygen content analysis device (CN201920510752.0), which has: a magnetic oxygen analyzer; a multi-flow gas mixture pretreatment unit; a multi-flow gas mixture switching unit; a PLC (programmable logic controller)-DCS (distributed computer control system) control unit. The device can realize a magnetic oxygen analyzer to analyze the oxygen content of sample gas mixtures at multiple sampling points one by one according to the program;

[0003] The existing technology mainly dehumidifies and removes impurities from the gas by directly sucking the gas into the machine and using built-in components. Before the gas enters the machine, it is inevitable that it will be mixed with impurities such as floating objects, which can easily cause blockage over time. If larger particle impurities are removed and blocked outside before the gas enters the machine, the impurity removal burden of the built-in components can be reduced, the service life can be extended, and the stability of operation can be ensured.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] An online oxygen analysis device comprises an analyzer body, wherein the analyzer body forms a cavity, a detection component is arranged in the cavity of the analyzer body, a window for air intake is arranged on the side wall of the analyzer body, an adsorption component for shielding the window and filtering the gas is arranged on the side wall of the analyzer body, the adsorption component comprises a first cover body, an extension tube, a second cover body and a retaining edge, the extension tube is fixedly connected to the analyzer body and faces the window, the second cover body is detachably connected to the extension tube, the first cover body is detachably connected to the extension tube via the retaining edge, the second cover body is sleeved in the cavity of the first cover body, and air holes are arranged on the walls of the first cover body and the second cover body.

[0007] As a preferred embodiment of the present invention, both the first cover body and the second cover body are open cylindrical structures, and the inner diameter of the first cover body is greater than the outer diameter of the second cover body.

[0008] As a preferred embodiment of the utility model, the retaining edge is annular and fixedly mounted on the outer wall of the extension tube. The end of the retaining edge is fixedly connected with an annular magnet, and the annular magnet can adsorb and fix the first cover body.

[0009] As a preferred embodiment of the present invention, the inner diameter of the first cover body is equal to the outer diameter of the extension tube, and when the end face of the first cover body contacts the retaining edge, the extension tube is inserted into the cavity of the first cover body.

[0010] As a preferred embodiment of the present invention, the outer wall of the second cover body is provided with threads, the inner wall surface of the extension tube is provided with teeth, and the second cover body is threadedly connected to the inner wall surface of the extension tube.

[0011] As a preferred embodiment of the present invention, the adsorption assembly further comprises a limiting rod symmetrically arranged on the end surface of the retaining edge, and the first cover body can slide along the limiting rod.

[0012] As a preferred embodiment of the utility model, a through hole adapted to a limiting rod is opened on the circumferential surface of the first cover body, the limiting rod passes through the through hole and is slidably connected to the first cover body, and a nut is threadedly connected to the wall surface of the limiting rod, which can limit the sliding distance of the first cover body.

[0013] As a preferred embodiment of the utility model, the adsorption assembly also includes a flow guide fixedly connected to the second cover body, the flow guide forms a funnel structure, the larger opening of the flow guide is fixedly connected to the end face of the second cover body, and the smaller opening of the flow guide is inserted into the extension tube.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. By setting a detachable first cover body and a second cover body, the first cover body and the second cover body are used to preliminarily filter the gas entering the analyzer body to remove dust and impurities therein, and the first cover body can be disassembled and cleaned by pulling the first cover body away from the retaining edge, and the second cover body can be disassembled and cleaned by rotating the second cover body so that the second cover body is separated from the extension tube. Double filtration and each layer of filtration can be disassembled, which is convenient for later cleaning and maintenance.

[0016] 2. By setting a limit rod, the limit rod is used to limit the sliding distance of the first cover body to prevent the first cover body from being completely detached and lost. When cleaning, the first cover body can also be pulled to a position away from the second cover body and the first cover body can be brushed with a brush to prevent the cleaned dust from falling into the second cover body and causing secondary pollution.

[0017] 3. By setting up a guide body, the gas filtered by the first cover body and the second cover body is gathered by the guide body to form a beam of airflow and sent into the analyzer body cavity for detection. It can guide the gas entering from the holes of the second cover body, facilitate the entry of gas, and reduce turbulence.

[0018] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In the attached picture:

[0020] Figure 1 It is a three-dimensional diagram of the utility model;

[0021] Figure 2 This is a three-dimensional diagram of the installation type of the first cover body and the extension tube of the utility model;

[0022] Figure 3 This is the first cover body and the extended assembly diagram of the utility model;

[0023] Figure 4 This is an assembly diagram of the second cover body and the extension tube of the utility model;

[0024] Figure 5 This is a schematic diagram of the installation of the guide body and the second cover.

[0025] In the figure: 10, analyzer body; 20, first cover body; 21, extension tube; 22, second cover body; 23, retaining edge; 24, limit rod; 25, guide body. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0027] An online oxygen analysis device, such as Figure 1 As shown, the analyzer body 10 includes an analyzer body 10, the analyzer body 10 forms a cavity, a detection component is arranged in the cavity of the analyzer body 10, a side wall of the analyzer body 10 is provided with a window for air intake, and the detection component includes a multi-flow gas mixture pretreatment unit, which can pretreat the gas mixture of the corresponding flow path;

[0028] A multi-flow gas mixture switching unit capable of switching the flow paths of the multi-flow gas mixture;

[0029] a PLC (Programmable Logic Controller)-DCS (Distributed Computer Control System) control unit capable of electrically controlling the flow path switching of the gas mixture of the multi-flow path gas mixture switching unit; and the multi-flow path gas mixture pretreatment unit is in gas communication with the multi-flow path gas mixture switching unit;

[0030] The multi-flow gas mixture switching unit is in gas communication with the magnetic oxygen analyzer;

[0031] The PLC (programmable logic controller) -DCS (distributed computer control system) control unit is connected to the magnetic oxygen analyzer by electrical signals. The specific connection and control method have been disclosed in detail in the prior art and are not the improvement points of this solution, so they will not be repeated here.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the side wall of the analyzer body 10 is provided with an adsorption component for shielding the window and filtering the gas, the adsorption component includes a first cover body 20, an extension tube 21, a second cover body 22 and a retaining edge 23, the extension tube 21 is fixedly connected to the analyzer body 10 and faces the window, the second cover body 22 is detachably connected to the extension tube 21, the first cover body 20 is detachably connected to the extension tube 21 through the retaining edge 23, the second cover body 22 is sleeved in the cavity of the first cover body 20, the walls of the first cover body 20 and the second cover body 22 are both provided with air holes, the first cover body 20 and the second cover body 22 are both open cylindrical structures, the inner diameter of the first cover body 20 is larger than the outer diameter of the second cover body 22, the retaining edge 23 is annular, the retaining edge 23 is fixedly mounted on the outer wall of the extension tube 21, and the end of the retaining edge 23 is fixedly connected with an annular magnet, which can adsorb and fix the first cover body 2 0, the inner diameter of the first cover body 20 is equal to the outer diameter of the extension tube 21. When the end face of the first cover body 20 conflicts with the retaining edge 23, the extension tube 21 is inserted into the cavity of the first cover body 20, the outer wall of the second cover body 22 is provided with a thread, and the inner wall surface of the extension tube 21 is provided with teeth. The second cover body 22 is threadedly connected with the inner wall surface of the extension tube 21. In this scheme, by providing a detachable first cover body 20 and a second cover body 22, the first cover body 20 and the second cover body 22 are used to preliminarily filter the gas entering the analyzer body 10 to remove dust and impurities therein, and the first cover body 20 is pulled away from the retaining edge 23 to disassemble and clean the first cover body 20, and the second cover body 22 is rotated to separate the second cover body 22 from the extension tube 21, thereby realizing the removal and cleaning of the second cover body 22. Double filtration and each layer of filtration can be disassembled, which is convenient for later cleaning and maintenance.

[0033] like Figure 3 As shown, the adsorption assembly also includes a limiting rod 24 symmetrically arranged on the end face of the retaining edge 23. The first cover body 20 can slide along the limiting rod 24. The circumferential surface of the first cover body 20 is provided with a through hole adapted to the limiting rod 24. The limiting rod 24 passes through the through hole and is slidably connected to the first cover body 20. The wall surface of the limiting rod 24 is threadedly connected with a nut, which can limit the sliding distance of the first cover body 20. By setting the limiting rod 24, the limiting rod 24 is used to limit the sliding distance of the first cover body 20 to prevent the first cover body 20 from being completely detached and lost. When cleaning, the first cover body 20 can also be pulled to a position away from the second cover body 22, and the first cover body 20 can be brushed with a brush, which can prevent the cleaned dust from falling into the second cover body 22 and causing secondary pollution.

[0034] like Figure 5 As shown, the adsorption assembly also includes a flow guide 25 fixedly connected to the second cover body 22, the flow guide 25 forms a funnel structure, the larger opening of the flow guide 25 is fixedly connected to the end face of the second cover body 22, and the smaller opening of the flow guide 25 is inserted into the extension tube 21. By setting the flow guide 25, the gas filtered by the first cover body 20 and the second cover body 22 is gathered by the flow guide 25 to form a beam-like airflow and sent into the cavity of the analyzer body 10 for detection. It can guide the gas entering from the various holes of the second cover body 22, facilitate the entry of the gas, and reduce turbulence.

[0035] Working principle: by setting a detachable first cover body 20 and a second cover body 22, the first cover body 20 and the second cover body 22 are used to preliminarily filter the gas entering the analyzer body 10 to remove dust and impurities therein, the first cover body 20 is pulled to separate from the retaining edge 23, and the limiting rod 24 is used to limit the sliding distance of the first cover body 20 to prevent the first cover body 20 from being completely separated and lost, and the second cover body 22 is rotated to separate the second cover body 22 from the extension tube 21 to achieve the removal and cleaning of the second cover body 22, and a guide body 25 is set, so that the gas filtered by the first cover body 20 and the second cover body 22 is gathered by the guide body 25 to form a beam of airflow and sent into the cavity of the analyzer body 10 for detection, which can guide the gas entering from the holes of the second cover body 22 and suppress turbulence.

[0036] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. An online oxygen analysis device, comprising an analyzer body (10), wherein the analyzer body (10) forms a cavity, a detection component is arranged in the cavity of the analyzer body (10), and a window for air intake is arranged on the side wall of the analyzer body (10), characterized in that: The side wall of the analyzer body (10) is provided with an adsorption assembly for shielding the window and filtering the gas, the adsorption assembly comprises a first cover body (20), an extension tube (21), a second cover body (22) and a retaining edge (23), the extension tube (21) is fixedly connected to the analyzer body (10) and faces the window, the second cover body (22) is detachably connected to the extension tube (21), the first cover body (20) is detachably connected to the extension tube (21) via the retaining edge (23), the second cover body (22) is sleeved in the cavity of the first cover body (20), and the walls of the first cover body (20) and the second cover body (22) are both provided with air holes.

2. The online oxygen analysis device according to claim 1, characterized in that: The first cover body (20) and the second cover body (22) are both open cylindrical structures, and the inner diameter of the first cover body (20) is greater than the outer diameter of the second cover body (22).

3. The online oxygen analysis device according to claim 1, characterized in that: The retaining edge (23) is annular and fixedly mounted on the outer wall of the extension tube (21). The end of the retaining edge (23) is fixedly connected to an annular magnet, which can adsorb and fix the first cover body (20).

4. The online oxygen analysis device according to claim 1, characterized in that: The inner diameter of the first cover body (20) is equal to the outer diameter of the extension tube (21); when the end surface of the first cover body (20) contacts the retaining edge (23), the extension tube (21) is inserted into the cavity of the first cover body (20).

5. The online oxygen analysis device according to claim 1, characterized in that: The outer wall of the second cover body (22) is provided with threads, the inner wall surface of the extension tube (21) is provided with teeth, and the second cover body (22) is threadedly connected to the inner wall surface of the extension tube (21).

6. The online oxygen analysis device according to claim 1, characterized in that: The adsorption assembly further comprises a limiting rod (24) symmetrically arranged on the end surface of the retaining edge (23), and the first cover body (20) can slide along the limiting rod (24).

7. The online oxygen analysis device according to claim 6, characterized in that: The circumferential surface of the first cover body (20) is provided with a through hole adapted to fit a limiting rod (24), the limiting rod (24) passes through the through hole and is slidably connected to the first cover body (20), and a nut is threadedly connected to the wall surface of the limiting rod (24), and the nut can limit the sliding distance of the first cover body (20).

8. The online oxygen analysis device according to claim 1, characterized in that: The adsorption assembly further comprises a flow guide (25) fixedly connected to the second cover body (22), the flow guide (25) forming a funnel structure, the larger opening of the flow guide (25) being fixedly connected to the end surface of the second cover body (22), and the smaller opening of the flow guide (25) being inserted into the extension tube (21).

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