阅读说明：本技术 一种基于化学检测的安全性高的氧氮氢分析装置 (High oxygen nitrogen hydrogen analytical equipment of security based on chemistry detects ) 是由 李文丽 杨兵 江志勇 夏子乔 于 2021-09-16 设计创作，主要内容包括：本发明涉及化学检测技术领域,且公开了一种基于化学检测的安全性高的氧氮氢分析装置,包括分析仪主体,分析仪主体的下端外表面固定连接有连接杆,连接杆的下端外表面固定连接有支撑座,连接杆的前端内表面活动连接有固定板,固定板的下端外表面固定连接有滑板,滑板的下端外表面活动连接有底板。该一种基于化学检测的安全性高的氧氮氢分析装置,方便移动和固定,且方便更换和清洁粉尘过滤网,在设备的支撑座中连接有可以活动的滑轮,在需要移动设备,可以将滑轮移动至支撑座外部并固定起来,通过滑轮可以很方便的移动设备,在需要固定住设备时,将滑轮收纳在支撑座中,使用支撑座对设备进行支撑,就可以将设备固定住。(The invention relates to the technical field of chemical detection, and discloses a high-safety oxygen, nitrogen and hydrogen analysis device based on chemical detection. This high oxygen nitrogen hydrogen analytical equipment of security based on chemistry detects, the convenient removal is with fixed, and conveniently changes and clean dust filter screen, is connected with the pulley that can move about in the supporting seat of equipment, needs mobile device, can remove the pulley to the supporting seat outside and fix, through the pulley can be very convenient mobile device, when needs fix equipment, accomodate the pulley in the supporting seat, use the supporting seat to support equipment, just can fix equipment.)

1. The utility model provides a high oxygen nitrogen hydrogen analytical equipment of security based on chemistry detects, includes analysis appearance main part (1), its characterized in that: the outer fixed surface of the lower end of the analyzer body (1) is connected with a connecting rod (3), the outer fixed surface of the lower end of the connecting rod (3) is connected with a supporting seat (5), the inner surface of the front end of the connecting rod (3) is movably connected with a fixing plate (13), the outer surface of the lower end of the fixing plate (13) is fixedly connected with a sliding plate (17), the outer surface of the lower end of the sliding plate (17) is movably connected with a bottom plate (12), the outer surface of the upper end of the bottom plate (12) is provided with a sliding groove (18), the outer surface of the lower end of the bottom plate (12) is fixedly connected with a connecting column (4), the outer surface of the lower end of the connecting column (4) is fixedly connected with a rotating disc (20), the outer wall of the rotating disc (20) is movably connected with a chassis (21), the outer surface of the lower end of the chassis (21) is fixedly connected with a connecting plate (15), and the inner surface of the left side of the connecting plate (15) is fixedly connected with a clamping column (33), the outer wall of the clamping column (33) is movably connected with a pulley (16), the outer surface of the right side of the fixed plate (13) is fixedly connected with a pulling block (14), the outer surface of the front end of the fixed plate (13) is fixedly connected with a magnet (19), the outer surface of the left side of the analyzer main body (1) is provided with a feeding hole (6), the inner surface of the lower end of the analyzer main body (1) is fixedly connected with an electrode furnace (7), the inner surface of the lower end of the electrode furnace (7) is fixedly connected with a graphite crucible (8), the inner surface of the lower end of the graphite crucible (8) is fixedly connected with a converter (9), the inner surface of the upper end of the analyzer main body (1) is fixedly connected with an infrared detector (10), the right inner surface of the analyzer main body (1) is fixedly connected with a thermal conductivity detector (11), the outer surface of the upper end of the analyzer body (1) is fixedly connected with a handle (2).

2. The high-safety oxynitrides analysis apparatus based on chemical detection according to claim 1, characterized in that: a movable groove (22) is formed in the inner surface of the front end of the reforming furnace (9), a first movable frame (23) is movably connected to the inner surface of the front end of the reforming furnace (9), a movable block (24) is fixedly connected to the outer surface of the front end of the first movable frame (23), a second movable frame (25) is movably connected to the inner surface of the front end of the first movable frame (23), a movable block (28) is movably connected to the outer surface of the upper end of the second movable frame (25), a movable rod (30) is fixedly connected to the outer surface of the lower end of the movable block (28), a cross rod (31) is fixedly connected to the outer surface of the lower end of the movable rod (30), an elastic block (32) is fixedly connected to the outer surface of the rear end of the cross rod (31), a fixed block (29) is fixedly connected to the outer surface of the front end of the cross rod (31), and a fixed inner surface groove (26) is formed in the left side of the first movable frame (23), and a filter screen (27) is fixedly connected to the inner surface of the front end of the second movable frame (25).

3. The high-safety oxynitrides analysis apparatus based on chemical detection according to claim 1, characterized in that: the outer surface of the lower end of the fixing plate (13) is provided with a screw, the outer surface of the upper end of the sliding plate (17) is fixedly connected with the outer surface of the lower end of the fixing plate (13) through the screw, the outer surface of the upper end of the bottom plate (12) is provided with a sliding groove (18), and the sliding plate (17) is matched with the sliding groove (18).

4. The high-safety oxynitrides analysis apparatus based on chemical detection according to claim 1, characterized in that: the outer surface of the lower end of the bottom plate (12) is provided with a second screw, the outer surface of the upper end of the connecting column (4) is fixedly connected with the outer surface of the lower end of the bottom plate (12) through the second screw, the outer surface of the lower end of the connecting column (4) is provided with a third screw, and the outer surface of the upper end of the rotating disc (20) is fixedly connected with the outer surface of the lower end of the connecting column (4) through the third screw.

5. The high-safety oxynitrides analysis apparatus based on chemical detection according to claim 1, characterized in that: the outer surface of the upper end of the chassis (21) is provided with a rotating groove, the rotating disc (20) is matched with the rotating groove, the outer surface of the lower end of the chassis (21) is provided with a fourth screw, and the outer surface of the upper end of the connecting plate (15) is fixedly connected with the outer surface of the lower end of the chassis (21) through the fourth screw.

6. The high-safety oxynitrides analysis apparatus based on chemical detection according to claim 1, characterized in that: the left side surface of connecting plate (15) is equipped with the screw five, the right side surface of card post (33) passes through the left side fixed surface connection of screw five and connecting plate (15), the right side surface of pulley (16) is equipped with the draw-in groove, card post (33) and draw-in groove looks adaptation.

7. The high-safety oxynitrides analysis apparatus based on chemical detection according to claim 2, characterized in that: the outer surface of the front end of the first movable frame (23) is provided with a six-number screw, the outer surface of the rear end of the movable block (24) is fixedly connected with the outer surface of the front end of the first movable frame (23) through the six-number screw, the inner surface of the front end of the converter (9) is provided with a movable groove (22), and the movable block (24) is matched with the movable groove (22).

8. The high-safety oxynitrides analysis apparatus based on chemical detection according to claim 2, characterized in that: seven screws are arranged on the outer surface of the lower end of the moving block (28), the outer surface of the upper end of the movable rod (30) is fixedly connected with the outer surface of the lower end of the moving block (28) through the seven screws, eight screws are arranged on the outer surface of the lower end of the movable rod (30), and the outer surface of the upper end of the cross rod (31) is fixedly connected with the outer surface of the lower end of the movable rod (30) through the eight screws.

9. The high-safety oxynitrides analysis apparatus based on chemical detection according to claim 2, characterized in that: the front end surface of movable rod (30) is equipped with nine screws, the rear end surface of fixed block (29) passes through the front end surface fixed connection of nine screws and movable rod (30), fixed slot (26) have been seted up to the left side internal surface of a movable frame (23), fixed block (29) and fixed slot (26) looks adaptation, the front end internal surface of No. two movable frames (25) is equipped with glue, the front end internal surface fixed connection of glue and No. two movable frames (25) is passed through to the front end surface of filter screen (27).

Technical Field

The invention relates to the technical field of chemical detection, in particular to a high-safety oxygen, nitrogen and hydrogen analysis device based on chemical detection.

Background

The oxyhydrogen nitrogen analyzer is an analyzer used in the field of material science, is a high-performance instrument for rapidly and accurately analyzing oxygen, nitrogen and hydrogen elements, and adopts an integrated design, namely a main machine consists of six independent hardware module units, namely a reliable pulse electrode furnace, a high-sensitivity high-precision detection system, a gas path system with reasonable layout and good air tightness, a reliable and durable power supply system, a stable circuit system, an energy-saving water circulation heat dissipation system and the like;

current oxygen nitrogen analyzer, inconvenient removal and fixed, and inconvenient change and clean dust filter screen, these all exist and promote the space, solve these problems and just become when hot, for this reason, we have released the high oxygen nitrogen hydrogen analytical equipment of security based on chemical detection.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the high-safety oxygen, nitrogen and hydrogen analysis device based on chemical detection, which has the advantages of convenience in moving and fixing and solves the problem of inconvenience in moving and fixing.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a high oxygen nitrogen hydrogen analytical equipment based on chemistry detection, including the analyzer body, the lower extreme surface of the analyzer body is fixedly connected with the connecting rod, the lower extreme surface of the connecting rod is fixedly connected with the supporting seat, the front end inner surface of the connecting rod is movably connected with the fixed plate, the lower extreme surface of the fixed plate is fixedly connected with the slide plate, the lower extreme surface of the slide plate is movably connected with the bottom plate, the upper end outer surface of the bottom plate is provided with the chute, the lower extreme surface of the bottom plate is fixedly connected with the connecting post, the lower extreme surface of the connecting post is fixedly connected with the rotating disk, the outer wall of the rotating disk is movably connected with the chassis, the lower extreme surface of the chassis is fixedly connected with the connecting plate, the left side inner surface of the connecting plate is fixedly connected with the clamping post, the outer wall of the clamping post is movably connected with the pulley, the right side outer surface of the fixed plate is fixedly connected with the pull block, the front end outer surface of the fixed plate is fixedly connected with the magnet, the feed inlet has been seted up to the left side surface of analysis appearance main part, the lower extreme internal surface fixedly connected with electrode stove of analysis appearance main part, the lower extreme internal surface fixedly connected with graphite crucible of electrode stove, the lower extreme internal surface fixedly connected with reborner of graphite crucible, the upper end internal surface fixedly connected with infrared detector of analysis appearance main part, the right side internal surface fixedly connected with thermal conductivity detector of analysis appearance main part, the upper end external surface fixedly connected with handle of analysis appearance main part.

Preferably, the activity groove has been seted up to the front end internal surface of reborner, the front end internal surface swing joint of reborner has the movable frame No. one, the front end external surface fixedly connected with movable block of movable frame No. one, the front end internal surface swing joint of movable frame has the movable frame No. two, the upper end external surface swing joint of No. two movable frames has the movable block, the lower extreme external surface fixedly connected with movable rod of movable block, the lower extreme external surface fixedly connected with horizontal pole of movable rod, the rear end external surface fixedly connected with elasticity piece of horizontal pole, the front end external surface fixedly connected with fixed block of horizontal pole, the fixed slot has been seted up to the left side internal surface of movable frame, the front end internal surface fixedly connected with filter screen of No. two movable frames, the fixed block is equipped with four, be used for dismantling the filter screen.

Preferably, the lower extreme surface of fixed plate is equipped with a screw, and the upper end surface of slide is connected with the lower extreme surface fixed connection of fixed plate through a screw, and the spout has been seted up to the upper end surface of bottom plate, slide and spout looks adaptation, and the fixed disk is used for removing the pulley.

Preferably, the outer surface of the lower end of the bottom plate is provided with a second screw, the outer surface of the upper end of the connecting column is fixedly connected with the outer surface of the lower end of the bottom plate through the second screw, the outer surface of the lower end of the connecting column is provided with a third screw, the outer surface of the upper end of the rotating disc is fixedly connected with the outer surface of the lower end of the connecting column through the third screw, and the bottom plate is used for connecting the pulley on the analyzer.

Preferably, the outer surface of the upper end of the chassis is provided with a rotating groove, the rotating disc is matched with the rotating groove, the outer surface of the lower end of the chassis is provided with a fourth screw, the outer surface of the upper end of the connecting plate is fixedly connected with the outer surface of the lower end of the chassis through the fourth screw, and the rotating disc enables the pulley to rotate at any angle.

Preferably, the left side surface of connecting plate is equipped with the screw five, and the right side surface of card post is through the fixed connection of the left side surface of screw five and connecting plate, and the right side surface of pulley is equipped with the draw-in groove, card post and draw-in groove looks adaptation, card post is used for connecting the pulley.

Preferably, the outer surface of the front end of the first movable frame is provided with a six-screw, the outer surface of the rear end of the movable block is fixedly connected with the outer surface of the front end of the first movable frame through the six-screw, the inner surface of the front end of the reforming furnace is provided with a movable groove, the movable block is matched with the movable groove, and the first movable frame is used for moving the whole filtering device.

Preferably, the outer surface of the lower end of the moving block is provided with seven screws, the outer surface of the upper end of the movable rod is fixedly connected with the outer surface of the lower end of the moving block through the seven screws, the outer surface of the lower end of the movable rod is provided with eight screws, the outer surface of the upper end of the cross rod is fixedly connected with the outer surface of the lower end of the movable rod through the eight screws, and the four moving blocks are used for moving the four fixed blocks.

Preferably, the front end surface of movable rod is equipped with nine screws, and the rear end surface of fixed block passes through nine screws and is connected with the front end surface fixed surface of movable rod, and the fixed slot has been seted up to the left side internal surface of a movable frame, fixed block and fixed slot looks adaptation, and the front end internal surface of No. two movable frames is equipped with glue, and the front end surface of filter screen passes through glue and is connected with the front end internal surface fixed surface of No. two movable frames, is stained with the active carbon above the filter screen for adsorb the dust.

(III) advantageous effects

Compared with the prior art, the invention provides a high-safety oxygen, nitrogen and hydrogen analysis device based on chemical detection, which has the following beneficial effects:

1. this high oxygen nitrogen hydrogen analytical equipment of security based on chemistry detects, the convenient removal is with fixed, and conveniently changes and clean dust filter screen, is connected with the pulley that can move about in the supporting seat of equipment, needs mobile device, can remove the pulley to the supporting seat outside and fix, through the pulley can be very convenient mobile device, when needs fix equipment, accomodate the pulley in the supporting seat, use the supporting seat to support equipment, just can fix equipment.

2. This high oxygen nitrogen hydrogen analytical equipment of security based on chemistry detects, the reborner in-connection of equipment has the filter screen that can move about for the dust filters, and the filter screen has used a latch device to fix it on the reborner, and the installation is dismantled to the filter screen that can be very light, makes things convenient for the change or the cleanness of later stage to the filter screen.

Drawings

FIG. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic view of the internal plan structure of the present invention;

FIG. 3 is a schematic view of a supporting seat structure according to the present invention;

FIG. 4 is a schematic view of the pulley of the present invention in use;

FIG. 5 is a schematic view of the pulley configuration of the present invention;

FIG. 6 is a schematic view of a reformer according to the present invention;

FIG. 7 is a schematic view of a movable frame structure according to the present invention;

fig. 8 is a schematic structural diagram of a moving block according to the present invention.

In the figure: 1. an analyzer body; 2. a handle; 3. a connecting rod; 4. connecting columns; 5. a supporting seat; 6. a feed inlet; 7. an electrode furnace; 8. a graphite crucible; 9. a reformer; 10. an infrared detector; 11. a thermal conductivity detector; 12. a base plate; 13. a fixing plate; 14. pulling the block; 15. a connecting plate; 16. a pulley; 17. A slide plate; 18. a chute; 19. a magnet; 20. rotating the disc; 21. a chassis; 22. a movable groove; 23. a first movable frame; 24. a movable block; 25. a second movable frame; 26. fixing grooves; 27. a filter screen; 28. a moving block; 29. a fixed block; 30. a movable rod; 31. a cross bar; 32. an elastic block; 33. and (5) clamping the column.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-5, the present invention provides a high-safety oxygen, nitrogen and hydrogen analyzer based on chemical detection, comprising an analyzer body 1, wherein a connecting rod 3 is fixedly connected to the outer surface of the lower end of the analyzer body 1, a supporting seat 5 is fixedly connected to the outer surface of the lower end of the connecting rod 3, a fixed plate 13 is movably connected to the inner surface of the front end of the connecting rod 3, a sliding plate 17 is fixedly connected to the outer surface of the lower end of the fixed plate 13, a bottom plate 12 is movably connected to the outer surface of the lower end of the sliding plate 17, a sliding groove 18 is formed on the outer surface of the upper end of the bottom plate 12, a connecting column 4 is fixedly connected to the outer surface of the lower end of the bottom plate 12, a rotating disc 20 is fixedly connected to the outer surface of the lower end of the connecting column 4, a chassis 21 is movably connected to the outer wall of the rotating disc 20, and a connecting plate 15 is fixedly connected to the outer surface of the lower end of the chassis 21, a clamping column 33 is fixedly connected to the inner surface of the left side of the connecting plate 15, a pulley 16 is movably connected to the outer wall of the clamping column 33, a pull block 14 is fixedly connected to the outer surface of the right side of the fixing plate 13, a magnet 19 is fixedly connected to the outer surface of the front end of the fixing plate 13, a feed inlet 6 is formed in the outer surface of the left side of the analyzer body 1, an electrode furnace 7 is fixedly connected to the inner surface of the lower end of the analyzer body 1, a graphite crucible 8 is fixedly connected to the inner surface of the lower end of the electrode furnace 7, a conversion furnace 9 is fixedly connected to the inner surface of the lower end of the graphite crucible 8, an infrared detector 10 is fixedly connected to the inner surface of the upper end of the analyzer body 1, a thermal conductivity detector 11 is fixedly connected to the inner surface of the right side of the analyzer body 1, a handle 2 is fixedly connected to the outer surface of the upper end of the analyzer body 1, and when equipment is needed, a material sample is placed in the electrode furnace 7 for pyrolysis, oxygen in the sample reacts with carbon in a graphite crucible 8 to generate carbon monoxide, nitrogen and hydrogen respectively escape in the form of nitrogen and hydrogen, a carrier gas sends the mixed gas into a conversion furnace 9, the carbon monoxide is converted into carbon dioxide, the mixed gas passing through the conversion furnace 9 is sent to an infrared detector 10 for detection, the mixed gas containing the nitrogen and the hydrogen after components such as the carbon dioxide are removed is sent to a thermal conductivity detector 11 for detection, the infrared detector 10 and the thermal conductivity detector 11 amplify, A/D convert and the like the detected signals and send the signals to a computer for data processing, thereby calculating the content of elements such as oxygen, nitrogen and hydrogen in the sample, when equipment needs to be fixed, a pulley 16 is accommodated in a supporting seat 5 in the above way, the equipment can be fixed on a plane through the supporting seat 5, the outer surface of the lower end of a fixing plate 13 is provided with a screw, the outer surface of the upper end of the sliding plate 17 is fixedly connected with the outer surface of the lower end of the fixed plate 13 through a first screw, the outer surface of the upper end of the bottom plate 12 is provided with a sliding groove 18, the sliding plate 17 is matched with the sliding groove 18, when equipment needs to be moved, the pulling block 14 is pulled, the pulling block 14 can drive the fixed plate 13 to move forwards along the sliding groove 18 through the sliding plate 17 while moving, the outer surface of the lower end of the bottom plate 12 is provided with a second screw, the outer surface of the upper end of the connecting column 4 is fixedly connected with the outer surface of the lower end of the bottom plate 12 through the second screw, the outer surface of the lower end of the connecting column 4 is provided with a third screw, the outer surface of the upper end of the rotating disc 20 is fixedly connected with the outer surface of the lower end of the connecting column 4 through the third screw, the fixed plate 13 is moved downwards until the bottom plate 12 is contacted with the inner surface of the lower end of the connecting column 3, and when the bottom plate 12 moves downwards, the connecting column 4 is driven to move downwards together, thereby release supporting seat 5 with pulley 16, push fixed plate 13 into connecting rod 3 again through slide 17 along spout 18, just can fix pulley 16 outside supporting seat 5, the upper end surface of chassis 21 has seted up the swivelling chute, rotary disk 20 and swivelling chute looks adaptation, the lower extreme surface of chassis 21 is equipped with No. four screws, the upper end surface of connecting plate 15 is connected with the lower extreme surface fixed connection of chassis 21 through No. four screws, the left side surface of connecting plate 15 is equipped with No. five screws, the right side surface of card post 33 is connected with the left side surface fixed connection of connecting plate 15 through No. five screws, the right side surface of pulley 16 is equipped with the draw-in groove, card post 33 and draw-in groove looks adaptation, move the equipment through pulley 16 very convenient.

Example two

Referring to fig. 1 and 6-8, a movable groove 22 is formed in the front end inner surface of the reformer 9, a first movable frame 23 is movably connected to the front end inner surface of the reformer 9, a movable block 24 is fixedly connected to the front end outer surface of the first movable frame 23, a second movable frame 25 is movably connected to the front end inner surface of the first movable frame 23, a movable block 28 is movably connected to the upper end outer surface of the second movable frame 25, a movable rod 30 is fixedly connected to the lower end outer surface of the movable block 28, a cross rod 31 is fixedly connected to the lower end outer surface of the movable rod 30, an elastic block 32 is fixedly connected to the rear end outer surface of the cross rod 31, a fixed block 29 is fixedly connected to the front end outer surface of the cross rod 31, a left side inner surface of the first movable frame 23 is formed with a fixed block 26, and a filter screen 27 is fixedly connected to the front end inner surface of the second movable frame 25, with the movement of the cross bar 31, the fixed block 29 will gradually move out of the corresponding fixed groove 26, and the other three fixed blocks 29 can be separated from the corresponding fixed grooves 26 in the above manner, so that the second movable frame 25 and the first movable frame 23 are loosened, the filter screen 27 can be easily taken out for replacement or cleaning, the outer surface of the front end of the first movable frame 23 is provided with six screws, the outer surface of the rear end of the movable block 24 is fixedly connected with the outer surface of the front end of the first movable frame 23 through the six screws, the inner surface of the front end of the reformer 9 is provided with the movable groove 22, the movable block 24 is adapted to the movable groove 22, when the filter screen 27 needs to be cleaned or replaced after long-term use, the first movable frame 23 moves upwards through the movable block 24 along the movable groove 22, so that the whole filter device is taken out of the reformer 9, the outer surface of the lower end of the movable block 28 is provided with seven screws, the outer surface of the upper end of the movable rod 30 is fixedly connected with the outer surface of the lower end of the movable block 28 through a seventh screw, the outer surface of the lower end of the movable rod 30 is provided with an eighth screw, the outer surface of the upper end of the cross rod 31 is fixedly connected with the outer surface of the lower end of the movable rod 30 through the eighth screw, the movable block 28 is pulled, the movable rod 30 drives the cross rod 31 to move together and extrude the elastic block 32 while the movable block 28 moves, the outer surface of the front end of the movable rod 30 is provided with a ninth screw, the outer surface of the rear end of the fixed block 29 is fixedly connected with the outer surface of the front end of the movable rod 30 through the ninth screw, the inner surface of the left side of the first movable frame 23 is provided with a fixed groove 26, the fixed block 29 is matched with the fixed groove 26, the inner surface of the front end of the second movable frame 25 is provided with glue, the outer surface of the front end of the filter screen 27 is fixedly connected with the inner surface of the front end of the second movable frame 25 through the glue, the lower part of the reformer 9 is provided with a filter screen 27 for filtering out dust in the carrier gas and the sample gas to prevent the dust from entering the reformer 9.

The working principle is as follows: when the device is needed to be used, a material sample is put into the electrode furnace 7 for high-temperature thermal decomposition, oxygen in the sample reacts with carbon in the graphite crucible 8 to generate carbon monoxide, nitrogen and hydrogen respectively escape in the form of nitrogen and hydrogen, the carrier gas sends the mixed gas into the conversion furnace 9, the carbon monoxide is converted into carbon dioxide, the mixed gas passing through the conversion furnace 9 is sent to the infrared detector 10 for detection, the mixed gas containing the nitrogen and the hydrogen after the components such as the carbon dioxide are removed is sent to the thermal conductivity detector 11 for detection, the infrared detector 10 and the thermal conductivity detector 11 send the detected signals into the computer for data processing after amplification, A/D conversion and other processing, thereby calculating the content of oxygen, nitrogen and hydrogen elements in the sample, a filter screen 27 is arranged at the lower part of the conversion furnace 9 and used for filtering out the carrier gas and the dust in the sample gas to prevent the dust from entering the conversion furnace 9, when the filter screen 27 needs to be cleaned or replaced after long-term use, the first movable frame 23 is moved upwards, the first movable frame 23 moves upwards along the movable groove 22 through the movable block 24, so that the whole filter device is taken out of the converter 9, the movable block 28 is pulled after being taken out, the movable block 28 moves and simultaneously drives the cross rod 31 to move together through the movable rod 30 and extrude the elastic block 32, the fixed block 29 gradually moves out of the corresponding fixed groove 26 along with the movement of the cross rod 31, the other three fixed blocks 29 can be separated from the corresponding fixed grooves 26 through the above way, so that the second movable frame 25 and the first movable frame 23 are loosened, the filter screen 27 can be easily taken out for replacement or cleaning, when the device needs to be moved, the pull block 14 is pulled, and the fixed plate 13 is driven to move forwards along the sliding groove 18 through the sliding plate 17 while the pull block 14 moves, when the fixing plate 13 is completely pulled out of the connecting rod 3, the fixing plate 13 is moved downwards until the bottom plate 12 stops contacting with the inner surface of the lower end of the connecting rod 3, when the bottom plate 12 moves downwards, the connecting column 4 can be driven to move downwards together, the pulley 16 is pushed out of the supporting seat 5, then the fixing plate 13 is pushed into the connecting rod 3 again along the sliding groove 18 through the sliding plate 17, the pulley 16 can be fixed outside the supporting seat 5, the other three pulleys 16 are fixed outside the supporting seat 5 in the mode, the equipment can be conveniently moved through the pulley 16, when the equipment needs to be fixed, the pulley 16 is stored inside the supporting seat 5 in the mode, and the equipment can be fixed on a plane through the supporting seat 5.

To sum up, a high oxygen nitrogen hydrogen analytical equipment of security based on chemistry detects, conveniently removes and fixes, and conveniently changes and clean dust filter screen.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.