Online gas purity analysis device

Abstract

The utility model belongs to the technical field of gas purity analysis, and particularly relates to an online gas purity analysis device which comprises a gas conveying pipeline and a gas purity analyzer, the gas purity analyzer is provided with a gas inlet, a gas outlet and a knob, the gas conveying pipeline is in butt joint with a detection pipeline, and the tail end of the detection pipeline is provided with a flange plate. The gas purity analyzer has the beneficial effects that the gas inlet pipe is arranged on the gas inlet of the gas purity analyzer, the sleeve is welded at the tail end of the gas inlet pipe, the sealing ring is arranged in the sleeve, the sleeve is rotationally connected with the internal thread sleeve, and the threaded rod is in threaded connection with the internal thread sleeve; by screwing the threaded rod, the abutting plate at the tail end of the threaded rod abuts against the position between the detection pipeline and the flange plate of the detection pipeline, so that the flange plate and the sleeve clamp the sealing ring, and the detection pipelines of any size can stretch into the sleeve and abut against and seal the detection pipelines through the threaded rod. And the butt joint between the gas inlet of the gas purity analyzer and the gas detection pipeline is more flexible.

Description

Technical Field

[0001] This utility model relates to the field of gas purity analysis technology, specifically to an online gas purity analysis device. Background Technology

[0002] The outer diameter of the inlet pipe of existing purity analyzers is fixed. When connecting to the gas pipeline detection port, the diameter of the end of the gas pipeline detection port is different. Therefore, it is often impossible to quickly connect the end of the gas pipeline detection port to the inlet pipe of the purity analyzer. An adapter is required to connect the end of the gas pipeline detection port to the inlet pipe of the purity analyzer, which affects the normal operation of the analysis and causes inconvenience to the purity analysis of pipeline gas. Utility Model Content

[0003] In view of the problems existing in a current online gas purity analysis device, this utility model is proposed.

[0004] Therefore, the purpose of this utility model is to provide an online gas purity analysis device, which solves the problem that the outer diameter of the inlet pipe of the existing purity analyzer is fixed. When connecting to the gas pipeline detection port, the diameter of the end of the gas pipeline detection port is different, so it is often impossible to quickly connect the end of the gas pipeline detection port to the inlet pipe of the purity analyzer. Moreover, an adapter is required to connect the end of the gas pipeline detection port to the inlet pipe of the purity analyzer, which affects the normal operation of the analysis and brings inconvenience to the gas purity analysis in the pipeline.

[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0006] An online gas purity analysis device includes a gas delivery pipeline and a gas purity analyzer. The gas purity analyzer has an inlet, an outlet, and a knob. A detection pipeline is connected to the gas delivery pipeline. The end of the detection pipeline has a flange. A first solenoid valve is installed on the detection pipeline. An inlet pipe is fixedly connected to the inlet of the gas purity analyzer. A sleeve is welded to the end of the inlet pipe. A sealing ring is provided in the inner cavity of the sleeve.

[0007] The sleeve is hinged with an internally threaded sleeve, and the inner wall of the internally threaded sleeve is threaded with a threaded rod, the end of which abuts against the flange.

[0008] In a preferred embodiment of the online gas purity analysis device of this utility model, the sleeve is provided with a through hole, and a rotating support pin is welded to the inner wall at both ends of the inner cavity of the through hole. The rotating support pin is rotatably connected to the internally threaded sleeve.

[0009] In a preferred embodiment of the online gas purity analysis device of this utility model, a bearing seat is fixedly installed on the outer wall of the internal threaded sleeve, and the bearing seat is rotatably connected to a rotating support pin through a bearing.

[0010] In a preferred embodiment of the online gas purity analysis device of this utility model, the gas delivery pipeline has a detection interface, and the end of the detection pipeline is connected to the detection interface.

[0011] In a preferred embodiment of the online gas purity analysis device of this utility model, a clamping plate is welded to the end of the threaded rod, the clamping plate abuts against the detection pipe and the flange, and the threaded rod is in an inclined state, and the flange and sleeve clamp the sealing ring.

[0012] In a preferred embodiment of the online gas purity analysis device of this utility model, the outlet of the gas purity analyzer is connected to a return pipe, a second solenoid valve is fixedly installed on the return pipe, the gas delivery pipeline has a gas return interface, and the end of the return pipe is connected to the gas return interface.

[0013] Compared with existing technologies:

[0014] By installing an inlet pipe at the gas purity analyzer's inlet and welding a sleeve to the end of the inlet pipe, a sealing ring is installed inside the sleeve, and an internally threaded sleeve is rotatably connected to the sleeve. A threaded rod is threadedly connected to the internally threaded sleeve. By turning the threaded rod, the clamping plate at the end of the threaded rod abuts against the detection pipe and its flange, thereby clamping the sealing ring between the flange and the sleeve. Detection pipes of any size can be inserted into the sleeve and sealed by the threaded rod, making the connection between the gas purity analyzer's inlet and the gas detection pipe more flexible. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present utility model;

[0016] Figure 2 This is a cross-sectional view of the sleeve provided in Embodiment 1 of this utility model;

[0017] Figure 3 This is a top view of the sleeve provided in Embodiment 1 of this utility model;

[0018] Figure 4 This is a system schematic diagram provided for Embodiment 1 of the present utility model;

[0019] Figure 5 This is a structural schematic diagram of Embodiment 2 of the present invention;

[0020] Figure 6 The system schematic diagram provided for Embodiment 2 of this utility model.

[0021] In the diagram: 1. Gas delivery pipeline; 2. Detection interface; 3. Detection pipeline; 31. Flange; 4. First solenoid valve; 6. Gas purity analyzer; 61. Inlet; 62. Outlet; 63. Knob; 7. Sleeve; 8. Inlet pipe; 9. Threaded rod; 10. Sealing ring; 11. Clamping plate; 12. Internal threaded sleeve; 13. Rotary support pin; 14. Bearing seat; 15. Through hole; 16. Return interface; 17. Second solenoid valve; 18. Return pipe. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0023] Example 1:

[0024] This utility model provides an online gas purity analysis device. Please refer to [link / reference]. Figure 1-4 The system includes a gas delivery pipeline 1 and a gas purity analyzer 6. The gas purity analyzer 6 can be replaced by a gas chromatograph. The gas purity analyzer 6 has an inlet 61, an outlet 62 and a knob 63. A detection pipeline 3 is connected to the gas delivery pipeline 1. The end of the detection pipeline 3 has a flange 31. A first solenoid valve 4 is installed on the detection pipeline 3. An inlet pipe 8 is fixedly connected to the inlet 61 of the gas purity analyzer 6. A sleeve 7 is welded to the end of the inlet pipe 8. A sealing ring 10 is provided in the inner cavity of the sleeve 7.

[0025] The sleeve 7 is hinged with an internally threaded sleeve 12, and the inner wall of the internally threaded sleeve 12 is threaded with a threaded rod 9, the end of which abuts against the flange 31.

[0026] The sleeve 7 has a through hole 15. Rotary support pins 13 are welded to the inner walls of both ends of the through hole 15. The rotary support pins 13 are rotatably connected to the internal threaded sleeve 12. Specifically, a bearing seat 14 is fixedly installed on the outer wall of the internal threaded sleeve 12. The bearing seat 14 is rotatably connected to the rotary support pin 13 through a bearing.

[0027] The gas delivery pipeline 1 has a detection interface 2, and the end of the detection pipeline 3 is connected to the detection interface 2.

[0028] The threaded rod 9 is welded to a clamping plate 11 at its end. The clamping plate 11 abuts against the detection pipe 3 and the flange 31. The threaded rod 9 is in an inclined state. The flange 31 and the sleeve 7 clamp the sealing ring 10. Under the action of the threaded rod 9, the flange 31 is pressed against the sealing ring 10, which can ensure the seal between the flange 31 and the sleeve 7.

[0029] The gas purity analyzer 6 is connected to a computer, which is connected to a first solenoid valve controller. The first solenoid valve controller is used to control the first solenoid valve 4. The computer has a built-in timing module and a storage module. The timing module records the detection time of the gas purity analyzer 6, and the computer is connected to the storage module through a T / O interface.

[0030] In practical use;

[0031] Insert the flange 31 of the test pipe 3 into the sleeve 7, and turn the threaded rod 9 until the clamping plate 11 is pressed against the test pipe 3 and the flange 31, so that the flange 31 and the sleeve 7 together clamp the sealing ring 10.

[0032] The first solenoid valve controller opens the first solenoid valve 4, and the gas in the gas delivery pipeline 1 enters the inlet 61 of the gas purity analyzer 6 through the detection pipeline 3. The first solenoid valve controller then closes the first solenoid valve 4, and the gas enters the gas purity analyzer 6 for concentration analysis, and the analysis results are transmitted to the computer.

[0033] Example 2:

[0034] See attached document Figure 5-6 Unlike Embodiment 1, the outlet 62 of the gas purity analyzer 6 is connected to a return pipe 18, a second solenoid valve 17 is fixedly installed on the return pipe 18, the gas delivery pipeline 1 has a gas return interface 16, and the end of the return pipe 18 is connected to the gas return interface 16.

[0035] The gas purity analyzer 6 is connected to a computer. The computer is connected to a first solenoid valve controller and a second solenoid valve controller. The second solenoid valve controller is used to control the second solenoid valve 17, and the first solenoid valve controller is used to control the first solenoid valve 4. The computer has a built-in timing module and a storage module. The timing module records the detection time of the gas purity analyzer 6, and the computer is connected to the storage module through the T / O interface.

[0036] In practical use:

[0037] Insert the flange 31 of the test pipe 3 into the sleeve 7, and turn the threaded rod 9 until the clamping plate 11 is pressed against the test pipe 3 and the flange 31, so that the flange 31 and the sleeve 7 together clamp the sealing ring 10.

[0038] The first solenoid valve controller controls the opening of the first solenoid valve 4, and the gas in the gas delivery pipeline 1 enters the gas inlet 61 of the gas purity analyzer 6 through the detection pipeline 3. The first solenoid valve controller controls the opening of the first solenoid valve 4 and then the gas enters the gas purity analyzer 6 for concentration analysis, and the analysis results are transmitted to the computer.

[0039] The second solenoid valve controller opens the second solenoid valve 17, allowing gas to flow in the gas delivery pipeline 1. As a result, the gas pressure is lower than the gas pressure in the return pipe 18, thus drawing the return pipe 18 and the detection gas entering the gas purity analyzer 6 into the gas delivery pipeline 1, preventing the detection gas from leaking out.

[0040] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An online gas purity analysis device, comprising a gas delivery pipeline (1) and a gas purity analyzer (6), the gas purity analyzer (6) having an inlet (61), an outlet (62) and a knob (63), a detection pipeline (3) being connected to the gas delivery pipeline (1), the end of the detection pipeline (3) having a flange (31), and a first solenoid valve (4) being installed on the detection pipeline (3), characterized in that: The gas purity analyzer (6) has an air inlet (61) fixedly connected to an air inlet pipe (8), and a sleeve (7) is welded to the end of the air inlet pipe (8). A sealing ring (10) is provided in the inner cavity of the sleeve (7). The sleeve (7) is hinged with an internally threaded sleeve (12), and the inner wall of the internally threaded sleeve (12) is threaded with a threaded rod (9), the end of which abuts against the flange (31).

2. The online gas purity analyzer according to claim 1, characterized in that, The sleeve (7) has a through hole (15), and a rotating support pin (13) is welded to the inner wall at both ends of the inner cavity of the through hole (15). The rotating support pin (13) is rotatably connected to the internal threaded sleeve (12).

3. The online gas purity analyzer according to claim 2, characterized in that, A bearing seat (14) is fixedly installed on the outer wall of the internal threaded sleeve (12), and the bearing seat (14) is rotatably connected to the rotating support pin (13) through the bearing.

4. The online gas purity analyzer according to claim 2, characterized in that, The gas delivery pipeline (1) has a detection interface (2), and the end of the detection pipeline (3) is connected to the detection interface (2).

5. The online gas purity analyzer according to claim 1, characterized in that, The threaded rod (9) is welded to a clamping plate (11), which abuts against the detection pipe (3) and the flange (31). The threaded rod (9) is in an inclined state, and the flange (31) and the sleeve (7) clamp the sealing ring (10).

6. The online gas purity analyzer according to claim 1, characterized in that, The outlet (62) of the gas purity analyzer (6) is connected to a return pipe (18), a second solenoid valve (17) is fixedly installed on the return pipe (18), the gas delivery pipeline (1) has a gas return interface (16), and the end of the return pipe (18) is connected to the gas return interface (16).

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