Nitrogen oxide analyzer adopting chemiluminescence method

Abstract

The utility model discloses a nitrogen oxide analyzer adopting a chemiluminescence method, which relates to the technical field of chemiluminescence analyzers and comprises an analyzer equipment main body, a control panel is fixedly mounted on the surface of the analyzer equipment main body, and a sample injection pipe is movably mounted at the top of the analyzer equipment main body. The top of the sample injection pipe is in threaded connection with a sealing cover, a heat dissipation plate is fixedly mounted on the side surface of the analyzer equipment main body, and a sample gas storage chamber is fixedly mounted in the analyzer equipment main body. Through mutual cooperation of the external connection plate, the fastener, the movable ring and the rubber ring, the problem that the detection accuracy of equipment is affected due to poor sealing performance of the air inlet pipe of the equipment is solved, the bottom of the fastener is matched with the clamping plate to be clamped and installed at the top of the assembly plate, the fastener is conveniently matched with the movable ring to be fixedly installed at the top of the external connection plate, and the sealing performance of the air inlet pipe is improved. Therefore, the rubber ring and the movable ring can be conveniently and hermetically connected, and the sealing performance of the bottom of the sample injection pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemiluminescence analyzers, and particularly relates to a chemiluminescence nitrogen oxide analyzer. Background Art

[0002] The basic detection principle of a chemiluminescence nitrogen oxide analyzer is that when nitric oxide reacts chemically with ozone, excited nitrogen dioxide molecules are generated, and when the excited nitrogen dioxide molecules return to the ground state, light is emitted. The intensity of the emitted light is proportional to the concentration of nitric oxide. The concentration of nitric oxide is detected by detecting the light intensity.

[0003] In the existing technical solutions, the publication number: CN211741080U, a nitrogen oxide analyzer based on chemiluminescence method, is proposed, which includes a first gas path system, a second gas path system and a detection system. The first gas path system and the second gas path system are respectively connected to the detection system; the detection system includes a reaction chamber and a constant temperature chamber. An infrared light source is arranged at the top of the reaction chamber, and an air inlet and an air outlet are arranged on the side wall of the reaction chamber. The first gas path system and the second gas path system are respectively connected to the air inlet.

[0004] In order to solve the problem that in the current chemiluminescence method, in the reaction chamber of the analyzer, the gas travel distance is short, resulting in insufficient chemical reaction, and thus inaccurate detection of the nitrogen oxide concentration. The existing technology is to add a partition plate in the reaction chamber, and this partition plate is placed between the air inlet and the air outlet, so that the gas flow path is extended, the residence time of the gas in the reaction chamber is increased, and the gas can react fully. However, there will still be a situation where the sealing performance of the equipment inlet pipe is poor, thus affecting the detection accuracy of the equipment. Content of the Utility Model

[0005] The purpose of the utility model is to provide a chemiluminescence nitrogen oxide analyzer to solve the problems put forward in the above background art.

[0006] To solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A chemiluminescence nitrogen oxide analyzer includes an analyzer equipment main body. A control panel is fixedly installed on the surface of the analyzer equipment main body. A sample injection tube is movably installed on the top of the analyzer equipment main body. A sealing cover is threadedly connected to the top of the sample injection tube. A heat dissipation plate is fixedly installed on the side of the analyzer equipment main body.

[0008] A sample gas storage chamber is fixedly installed inside the analyzer equipment main body, and a reinforcement mechanism is arranged at the top of the sample gas storage chamber.

[0009] An activity ring is movably sleeved on the outer side of the bottom of the sample injection tube. A fastener is fixedly connected to the bottom of the activity ring, and a sealing mechanism is arranged at the bottom of the fastener.

[0010] A further improvement of the technical solution of the present utility model lies in that: the reinforcement mechanism includes an installation base, a fixing bolt is threadedly connected to the bottom of the installation base, and a support plate is fixedly connected to the outer side of the installation base.

[0011] By adopting the above technical solution, through the mutual cooperation of the installation base, the fixing bolt and the support plate, the function of strengthening the installation is achieved.

[0012] A further improvement of the technical solution of the present utility model lies in that: a fixing block is fixedly installed at the bottom of the inner cavity of the installation base, a lifting column is movably installed on the top of the fixing block, and a pushing ring is movably installed on the top of the lifting column.

[0013] By adopting the above technical solution, through the mutual cooperation of the fixing block, the lifting column and the pushing ring, the function of lifting and sleeving is achieved.

[0014] A further improvement of the technical solution of the present utility model lies in that: the top of the pushing ring is movably installed at the bottom of the sample injection tube, a sealing ring is fixedly installed on the outer side of the top of the sample injection tube, and a sealing bolt is threadedly connected to the top of the sealing ring.

[0015] By adopting the above technical solution, through the mutual cooperation of the sample injection tube, the sealing ring and the sealing bolt, the function of strengthening the seal is achieved.

[0016] A further improvement of the technical solution of the present utility model lies in that: one end of the sample gas storage chamber is fixedly connected to a gas guide pipe, and the other end of the gas guide pipe is fixedly connected to an inspection chamber.

[0017] A further improvement of the technical solution of the present utility model lies in that: the sealing mechanism includes a clamping plate, an assembly plate is movably sleeved at the bottom of the clamping plate, and an external connection plate is fixedly installed at the bottom of the assembly plate.

[0018] By adopting the above technical solution, through the mutual cooperation of the clamping plate, the assembly plate and the external connection plate, the function of sealing connection is achieved.

[0019] A further improvement of the technical solution of the present utility model lies in that: the outer side of the external connection plate is movably installed inside the installation base, and a rubber ring is fixedly installed at the top of the inner cavity of the external connection plate.

[0020] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:

[0021] 1. The utility model provides a chemiluminescence nitrogen oxide analyzer. Through the mutual cooperation of the mounting base, fixing bolts and support plates, the problem that the protection of the equipment intake pipe is relatively low, which easily causes the intake pipe to bend and result in gas leakage is solved, achieving the function of strengthening the installation. The bottom of the sample injection pipe is sleeved inside the mounting base, and fixing bolts are threadedly installed on the outside of the mounting base to increase the fixity of the bottom of the sample injection pipe. Then, the support plates are used to strengthen the installation, increasing the strength of the bottom and improving the safety of the device.

[0022] 2. The utility model provides a chemiluminescence nitrogen oxide analyzer. Through the mutual cooperation of the external connection plate, fasteners, movable rings and rubber rings, the problem that the sealing performance of the equipment intake pipe is relatively poor, thus affecting the detection accuracy of the equipment is solved. The bottom of the fastener is snap-fitted and installed on the top of the assembly plate through a clamping plate, facilitating the fastener to be fixedly installed on the top of the external connection plate in cooperation with the movable ring, thereby facilitating the sealing connection between the rubber ring and the movable ring, increasing the sealing performance at the bottom of the sample injection pipe.

[0023] 3. The utility model provides a chemiluminescence nitrogen oxide analyzer. Through the mutual cooperation of the fixed block, lifting column and pushing ring, by the telescopic movement of the lifting column, the pushing ring is driven to move up and down with the sample injection pipe, driving the top of the sample injection pipe to lift, and further protecting the intake pipe in a telescopic manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the present utility model;

[0025] Figure 2 is a schematic structural diagram of the analyzer equipment main body of the present utility model;

[0026] Figure 3 is a schematic structural diagram of the sample injection pipe of the present utility model;

[0027] Figure 4 is of the present utility model Figure 3 enlarged view of part A in;

[0028] Figure 5 is a schematic structural diagram of the fastener of the present utility model.

[0029] In the figure: 1. Analyzer equipment main body; 11. Sample gas storage chamber; 12. Gas guide pipe; 13. Inspection chamber; 2. Control panel; 3. Sample injection pipe; 31. Sealing ring; 32. Sealing bolt; 33. Mounting base; 331. Fixed block; 332. Lifting column; 333. Pushing ring; 34. Fixing bolt; 35. Support plate; 36. External connection plate; 361. Fastener; 362. Movable ring; 363. Rubber ring; 364. Clamping plate; 365. Assembly plate; 4. Sealing cover; 5. Heat dissipation plate. Detailed implementation mode

[0030] The following further describes the present utility model in detail with reference to the embodiments: Embodiment

[0031] As Figure 1 、 Figure 2 、 Figure 3 shown, this embodiment provides a chemiluminescence nitrogen oxide analyzer, which includes an analyzer device main body 1. A control panel 2 is fixedly installed on the surface of the analyzer device main body 1. A sample injection tube 3 is movably installed on the top of the analyzer device main body 1. A sealing cover 4 is threadedly connected to the top of the sample injection tube 3. A heat dissipation plate 5 is fixedly installed on the side of the analyzer device main body 1. A sample gas storage chamber 11 is fixedly installed inside the analyzer device main body 1. A reinforcement mechanism is arranged at the top of the sample gas storage chamber 11. The reinforcement mechanism includes an installation base 33. A fixing bolt 34 is threadedly connected to the bottom of the installation base 33. A support plate 35 is fixedly connected to the outside of the installation base 33. One end of the sample gas storage chamber 11 is fixedly connected to a gas guide pipe 12. The other end of the gas guide pipe 12 is fixedly connected to a test chamber 13. By sleeving the bottom of the sample injection tube 3 inside the installation base 33 and cooperating with the threaded installation of the fixing bolt 34 on the outside of the installation base 33, the fixing property of the bottom of the sample injection tube 3 is increased. Then, it is further strengthened and installed by the support plate 35, further improving the strength of the bottom of the sample injection tube 3. Embodiment

[0032] As Figure 4 shown, on the basis of Embodiment 1, this embodiment provides a technical solution: Preferably, a fixing block 331 is fixedly installed at the bottom of the inner cavity of the installation base 33. A lifting column 332 is movably installed on the top of the fixing block 331. A pushing ring 333 is movably installed on the top of the lifting column 332. The top of the pushing ring 333 is movably installed at the bottom of the sample injection tube 3. A sealing ring 31 is fixedly installed on the outside of the top of the sample injection tube 3. A sealing bolt 32 is threadedly connected to the top of the sealing ring 31. When injecting gas through the device, by using the telescopic movement of the lifting column 332 to drive the pushing ring 333 and the sample injection tube 3 to move up and down, the top of the sample injection tube 3 is driven to lift, opening the sealing cover 4 for injection detection. Then, the sealing ring 31 and the sealing bolt 32 are sleeved and installed, increasing the sealing property of the top of the sample injection tube 3, facilitating convenient injection of the device and facilitating the flow detection between the gas guide pipe 12 and the test chamber 13. Embodiment

[0033] As Figure 5As shown in the figure, on the basis of Embodiment 1, this embodiment provides a technical solution: Preferably, an activity ring 362 is movably sleeved on the outer side of the bottom of the sample injection tube 3. A fastener 361 is fixedly connected to the bottom of the activity ring 362. A sealing mechanism is arranged at the bottom of the fastener 361. The sealing mechanism includes a clamping plate 364. The bottom of the clamping plate 364 is movably sleeved with an assembly plate 365. An external connection plate 36 is fixedly installed at the bottom of the assembly plate 365. The outer side of the external connection plate 36 is movably installed inside the installation base 33. A rubber ring 363 is fixedly installed at the top of the inner cavity of the external connection plate 36. By fitting the bottom of the fastener 361 with the clamping plate 364 and clamping and installing it on the top of the assembly plate 365, it is convenient for the fastener 361 to cooperate with the activity ring 362 to be fixedly installed on the top of the external connection plate 36, so as to facilitate the sealing connection between the rubber ring 363 and the activity ring 362, increase the sealing performance at the bottom of the sample injection tube 3, and cooperate with the structure fixedly installed by the fastener 361 to facilitate the fixed installation of the sealing mechanism and increase the fixing performance at the bottom of the sample injection tube 3.

[0034] Next, the working principle of this chemiluminescence nitrogen oxide analyzer will be specifically described.

[0035] As Figures 1-5 shown in the figure, the bottom of the sample injection tube 3 is sleeved inside the installation base 33, and fixing bolts 34 are threadedly installed on the outer side of the installation base 33 to increase the fixing performance at the bottom of the sample injection tube 3. Then, it is further strengthened and installed by the support plate 35 to further improve the strength at the bottom of the sample injection tube 3. When injecting gas through the device, the lifting column 332 moves telescopically to drive the pushing ring 333 and the sample injection tube 3 to move up and down, driving the top of the sample injection tube 3 to lift, opening the sealing cover 4 for injection detection. Then, the sealing ring 31 and the sealing bolt 32 are sleeved and installed to increase the sealing performance at the top of the sample injection tube 3, facilitating convenient injection of the device. The bottom of the fastener 361 is clamped and installed on the top of the assembly plate 365 by cooperating with the clamping plate 364, which is convenient for the fastener 361 to cooperate with the activity ring 362 to be fixedly installed on the top of the external connection plate 36, so as to facilitate the sealing connection between the rubber ring 363 and the activity ring 362, increase the sealing performance at the bottom of the sample injection tube 3, and cooperate with the structure fixedly installed by the fastener 361 to facilitate the fixed installation of the sealing mechanism and increase the fixing performance at the bottom of the sample injection tube 3.

[0036] The above generally describes the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, modifications or improvements made without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A chemiluminescence nitrogen oxide analyzer, comprising an analyzer device main body (1), characterized in that: A control panel (2) is fixedly installed on the surface of the analyzer device main body (1). A sample injection tube (3) is movably installed on the top of the analyzer device main body (1). A sealing cover (4) is threadedly connected to the top of the sample injection tube (3). A heat dissipation plate (5) is fixedly installed on the side of the analyzer device main body (1). A sample gas storage chamber (11) is fixedly installed inside the analyzer device main body (1). A reinforcement mechanism is arranged on the top of the sample gas storage chamber (11). An activity ring (362) is movably sleeved on the outer side of the bottom of the sample injection tube (3). A fastener (361) is fixedly connected to the bottom of the activity ring (362). A sealing mechanism is arranged at the bottom of the fastener (361).

2. The chemiluminescence nitrogen oxide analyzer according to claim 1, wherein: The reinforcement mechanism includes a mounting base (33). A fixing bolt (34) is threadedly connected to the bottom of the mounting base (33). A support plate (35) is fixedly connected to the outer side of the mounting base (33).

3. The chemiluminescence nitrogen oxide analyzer according to claim 2, characterized in that: A fixing block (331) is fixedly installed at the bottom of the inner cavity of the mounting base (33). A lifting column (332) is movably installed on the top of the fixing block (331). A push ring (333) is movably installed on the top of the lifting column (332).

4. The chemiluminescence nitrogen oxide analyzer according to claim 3, wherein: The top of the push ring (333) is movably installed at the bottom of the sample injection tube (3). A sealing ring (31) is fixedly installed on the outer side of the top of the sample injection tube (3). A sealing bolt (32) is threadedly connected to the top of the sealing ring (31).

5. A chemiluminescence nitrogen oxide analyzer according to claim 1, characterized in that: One end of the sample gas storage chamber (11) is fixedly connected to a gas guide pipe (12). The other end of the gas guide pipe (12) is fixedly connected to an inspection chamber (13).

6. The chemiluminescence nitrogen oxide analyzer according to claim 1, characterized in that: The sealing mechanism includes a clamping plate (364). An assembly plate (365) is movably sleeved on the bottom of the clamping plate (364). An external connection plate (36) is fixedly installed at the bottom of the assembly plate (365).

7. The chemiluminescence nitrogen oxide analyzer according to claim 6, characterized in that: The outer side of the external connection plate (36) is movably installed inside the mounting base (33). A rubber ring (363) is fixedly installed at the top of the inner cavity of the external connection plate (36).

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