Glowing filament tester integrating linkage of gas purification and gas monitoring

Abstract

The utility model provides a glowing filament tester integrating linkage of gas purification and gas monitoring, which relates to the technical field of glowing filament testers and comprises a main board, a test box is arranged at the top end of the main board, a negative pressure suction device is mounted on the inner wall of the test box, an exhaust pipe is mounted at one end of the negative pressure suction device, and a gas outlet pipe is mounted at the other end of the negative pressure suction device. One end, far away from the negative pressure suction device, of the exhaust pipe penetrates through the test box and is fixedly provided with a treatment box. A double-layer high-temperature-resistant glass observation door and a silica gel sealing ring are adopted, a closed test environment is formed, gas leakage is prevented, a negative pressure suction device is arranged in the test box, and the test box is connected with an external treatment box through an exhaust pipe and then connected with an external chemical adsorption tower through a first communicating pipe and a second communicating pipe. The activated carbon plate installed in the treatment box is used for adsorbing benzene and particulate matter to achieve primary purification, gas obtained after primary purification enters the chemical adsorption tower, acid gas is neutralized through a NaOH solution in the chemical adsorption tower, and the secondary purification effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a burning filament tester technology field especially relates to a kind of burning filament tester of integrated gas purification and gas monitoring linkage. BACKGROUND

[0002] Local environmental protection regulations, occupational health and safety regulations are more stringent requirements for laboratory exhaust gas emission and personnel protection. If enterprises do not take measures to deal with harmful gas generated by test, they may face legal risks and administrative penalties, which prompts enterprises to improve the burning filament tester, integrates gas purification and monitoring function.

[0003] A kind of burning filament tester of integrated gas purification and gas monitoring linkage in prior art currently, there is gas diffusion risk when doing product test, traditional equipment lacks the design of sealed environment, and toxic gases containing benzene, sulfide and other toxic gases released in test are easy to diffuse, which threatens the health of operating personnel. The purification capacity is insufficient, and some equipment only relies on fume hood to discharge gas, without integrated chemical adsorption or filtering device, leading to non-compliance of pollution control. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems of prior art, such as gas diffusion risk when doing product test, traditional equipment lacking the design of sealed environment, toxic gases containing benzene, sulfide and other toxic gases released in test being easy to diffuse, which threatens the health of operating personnel. The purification capacity is insufficient, and some equipment only relies on fume hood to discharge gas, without integrated chemical adsorption or filtering device, leading to non-compliance of pollution control, and proposes a kind of burning filament tester of integrated gas purification and gas monitoring linkage.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a kind of burning filament tester of integrated gas purification and gas monitoring linkage, including mainboard, test box is placed at the top of the mainboard, negative pressure suction device is installed on the inner wall of the test box, one end of the negative pressure suction device is equipped with exhaust pipe, the end of the exhaust pipe away from the negative pressure suction device penetrates test box and is fixed with processing box, activated carbon plate is inserted in the processing box, one end of the processing box is fixed with first communication pipe, the second communication pipe is installed at the end of the first communication pipe away from the processing box, chemical adsorption tower is installed at the end of the second communication pipe away from the first communication pipe, integrated electrochemical sensor is installed in the test box and chemical adsorption tower, double-layer high-temperature-resistant glass observation door is clamped at one end of the test box, silica gel sealing ring is installed at the outer side of double-layer high-temperature-resistant glass observation door at one end of the test box, buckle structure for clamping and limiting the position of double-layer high-temperature-resistant glass observation door is arranged on the outer wall of the test box, operation panel is installed on the outer wall of the test box.

[0006] Preferably, the buckle structure comprises a limiting block fixed on the outer wall of the double-layer high-temperature-resistant glass observation door, a fixing block is fixed on the outer wall of the test box, a clamping column is slidably connected in the fixing block, the bottom end of the clamping column penetrates through the limiting block, a pull plate is fixed at the top end of the clamping column, and a spring is fixed between the pull plate and the fixing block and located outside the clamping column.

[0007] Preferably, the top end of the test box is provided with an audible and visual alarm.

[0008] Preferably, the two ends of the pull plate are fixed with limiting plates, limiting columns are slidably connected in the two limiting plates, the bottom ends of the two limiting columns are fixed with the fixing block, and the top ends of the two limiting columns are fixed with stop blocks.

[0009] Preferably, the end of the active carbon plate outside the treatment box is fixed with a sealing plate, and the top end of the sealing plate is fixed with a connecting block.

[0010] Preferably, the top end of the treatment box is fixed with support plates on both sides, and a latch nut is arranged in the two support plates.

[0011] Preferably, the end of the active carbon plate facing the test box is provided with an opening, and the first communication pipe and the second communication pipe are fixed through flange bolts.

[0012] Preferably, the bottom end of the test box and the bottom end of the chemical adsorption tower are fixed with mounting plates, and the two mounting plates are respectively fixed with the main plate through bolt bodies.

[0013] Preferably, the four corners of the main plate are provided with mounting holes.

[0014] Preferably, the two ends of the double-layer high-temperature-resistant glass observation door are fixed with connecting plates, and the two sides of one end of the connecting plate are fixed with handles.

[0015] Compared with the prior art, the utility model has the advantages and positive effects that;

[0016] The utility model discloses a double -deck high temperature -resistant glass observation door (temperature resistance is greater than 1000 DEG C) and silica gel sealing ring are used, form closed test environment, prevent gas to leak, set up negative pressure suction device (air volume is greater than and equal to 50L / min) in test box, connect the processing box of outside through the exhaust pipe, then connect the chemical adsorption tower of outside through first communicating pipe and second communicating pipe, through the activated carbon plate adsorption benzene class, particulate matter that processing box installs, reach primary purification, and the gas of primary purification will enter chemical adsorption tower, and the NaOH solution in chemical adsorption tower neutralizes acid gas, reaches secondary purification effect, and the effect of purification is better, and through the setting of two integrated electrochemical sensors, can real -time monitoring the gas concentration in test box and the gas concentration when chemical adsorption tower discharges, and the practicality is stronger. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A perspective view of the incandescent wire tester integrated with gas purification and gas monitoring linkage is provided for the utility model;

[0018] Figure 2 A rear perspective view of the incandescent wire tester integrated with gas purification and gas monitoring linkage is provided for the utility model;

[0019] Figure 3 A sectional view of the incandescent wire tester integrated with gas purification and gas monitoring linkage is provided for the utility model;

[0020] Figure 4 An external structure diagram of the activated carbon plate of the incandescent wire tester integrated with gas purification and gas monitoring linkage is provided for the utility model;

[0021] Figure 5 A buckle structure diagram of the incandescent wire tester integrated with gas purification and gas monitoring linkage is provided for the utility model.

[0022] Legend: 1, mainboard; 2, test box; 3, double -deck high temperature -resistant glass observation door; 4, silica gel sealing ring; 5, connecting plate; 6, handle; 7, buckle structure; 701, limit block; 702, fixed block; 703, card column; 704, pull plate; 705, spring; 8, limit plate; 9, limit column; 10, stop block; 11, negative pressure suction device; 12, exhaust pipe; 13, processing box; 14, first communicating pipe; 15, second communicating pipe; 16, chemical adsorption tower; 17, flange bolt; 18, activated carbon plate; 19, sealing plate; 20, connecting block; 21, support plate; 22, bolt nut; 23, integrated electrochemical sensor; 24, audible and visual alarm; 25, operation panel; 26, mounting plate; 27, bolt main body; 28, mounting hole. DETAILED DESCRIPTION

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1, as Figures 1-5 As shown, this utility model provides a glow wire tester that integrates gas purification and gas monitoring. It includes a main board 1, a test chamber 2 placed at the top of the main board 1, a negative pressure suction device 11 installed on the inner wall of the test chamber 2, an exhaust pipe 12 installed at one end of the negative pressure suction device 11, and a treatment box 13 fixed to the end of the exhaust pipe 12 away from the negative pressure suction device 11. An activated carbon plate 18 is inserted into the treatment box 13, and a first connecting pipe 14 is fixed to one end of the treatment box 13. An activated carbon plate 18 is installed at the end of the first connecting pipe 14 away from the treatment box 13. The test chamber 2 is equipped with a second connecting pipe 15. A chemical adsorption tower 16 is installed at the end of the second connecting pipe 15 away from the first connecting pipe 14. An integrated electrochemical sensor 23 is installed in both the test chamber 2 and the chemical adsorption tower 16. A double-layer high-temperature resistant glass observation door 3 is snapped onto one end of the test chamber 2. A silicone sealing ring 4 is installed on the outside of the double-layer high-temperature resistant glass observation door 3 at one end of the test chamber 2. A snap-fit ​​structure 7 is provided on the outer wall of the test chamber 2 for snapping and limiting the position of the double-layer high-temperature resistant glass observation door 3. An operation panel 25 is installed on the outer wall of the test chamber 2.

[0026] The overall effect of Embodiment 1 is as follows: a closed testing environment is formed by using a double-layer high-temperature resistant glass observation door 3 (temperature resistance greater than 1000℃) and a silicone sealing ring 4 to prevent gas leakage. A negative pressure suction device 11 (air volume greater than or equal to 50L / min) is installed in the test chamber 2, which is connected to the external treatment chamber 13 through the exhaust pipe 12, and then connected to the external chemical adsorption tower 16 through the first connecting pipe 14 and the second connecting pipe 15. Benzene and particulate matter are adsorbed by the activated carbon plate 18 installed in the treatment chamber 13 to achieve primary purification. The gas after primary purification enters the chemical adsorption tower 16, where the acidic gas is neutralized by the NaOH solution, achieving secondary purification. The purification effect is better. Furthermore, the setting of two integrated electrochemical sensors 23 can monitor the gas concentration in the test chamber 2 and the gas concentration emitted by the chemical adsorption tower 16 in real time, making it more practical. The setting of the snap-fit ​​structure 7 can lock and limit the position of the double-layer high-temperature resistant glass observation door 3, achieving the effect of installing and removing the double-layer high-temperature resistant glass observation door 3.

[0027] Example 2, as Figures 1-5 As shown, the snap-fit ​​structure 7 includes a limiting block 701 fixed to the outer wall of the double-layer high-temperature resistant glass observation door 3, a fixing block 702 fixed to the outer wall of the test chamber 2, a locking post 703 slidably connected inside the fixing block 702, the bottom end of the locking post 703 penetrating through the limiting block 701, a pull plate 704 fixed to the top of the locking post 703, a spring 705 fixed between the pull plate 704 and the fixing block 702 on the outside of the locking post 703, an audible and visual alarm 24 installed at the top of the test chamber 2, limit plates 8 fixed to both ends of the pull plate 704, limit posts 9 slidably connected inside the two limit plates 8, the bottom ends of the two limit posts 9 fixed to the fixing block 702, and a stop block 10 fixed to the top of the two limit posts 9. The activated carbon plate 18 is located in the treatment chamber. A sealing plate 19 is fixed to one end of the outer side of the treatment box 13. A connecting block 20 is fixed to the top of the sealing plate 19. Support plates 21 are fixed to both sides of the top of the treatment box 13. A pin nut 22 is provided in both support plates 21. The pin nut 22 passes through the connecting block 20. An opening is provided at the end of the activated carbon plate 18 facing the test chamber 2. The first connecting pipe 14 and the second connecting pipe 15 are fixed together by flange bolts 17. Mounting plates 26 are fixed to the bottom outer walls of the test chamber 2 and the chemical adsorption tower 16. The two mounting plates 26 are fixed to the main board 1 by bolt bodies 27. Mounting holes 28 are provided at the four corners of the main board 1. A connecting plate 5 is fixed to both ends of the double-layer high-temperature resistant glass observation door 3. A handle 6 is fixed to both sides of one end of the connecting plate 5.

[0028] The effect achieved by the entire embodiment 2 is as follows: when it is necessary to install the double-layer high-temperature resistant glass observation door 3, the user only needs to pull the pull plate 704 upward, causing the locking post 703 to move upward. At this time, the double-layer high-temperature resistant glass observation door 3 is placed through the opening of the test chamber 2. After placement, the pull plate 704 is released, causing the locking post 703 to move downward under the reset thrust of the spring 705, thereby causing the locking post 703 to pass through the limiting block 701, thus limiting the position of the double-layer high-temperature resistant glass observation door 3 and achieving the installation effect. When disassembling, simply pull the locking post 703 upward, causing it to move out of the limiting block 701 and be located above the connecting plate 5, and the double-layer high-temperature resistant glass observation door 3 can be directly removed. The device can be disassembled and reassembled using the mounting plate 26 and bolt body 27. The entire test chamber 2 and chemical adsorption tower 16 can be installed and disassembled using the sealing plate 19. The gap between the activated carbon plate 18 and the treatment box 13 is sealed using the sealing plate 19. The position of the connecting block 20 can be limited by the pin nut 22 and the support plate 21, thereby limiting the position of the activated carbon plate 18 and the sealing plate 19, achieving the effect of installing the activated carbon plate 18. During disassembly, simply remove the pin nut 22. The operation panel 25 of this device can control the operation of the negative pressure suction device 11, the integrated electrochemical sensor 23, and the audible and visual alarm 24.

[0029] Working principle: when the device is used, before the test is started, the double-layer high-temperature-resistant glass observation door 3 is closed and the negative pressure suction device 11 is opened, a negative pressure environment (the pressure difference is greater than or equal to 50 Pa) is formed in the test box 2, the hot wire outside the test box 2 is heated to the target temperature (such as 850 DEG C), and the gas generated after the sample contacts is treated through the activated carbon plate 18 and the chemical adsorption tower 16, and the gas is detected through the integrated electrochemical sensor 23; when the concentration of the purified gas is less than 1 ppm, the gas is discharged into the atmosphere, and if the concentration exceeds the standard, the audible and light alarm 24 is triggered; when the double-layer high-temperature-resistant glass observation door 3 needs to be installed, the user only needs to pull the pull plate 704 upwards to drive the clamping column 703 to move upwards; at this time, the double-layer high-temperature-resistant glass observation door 3 is placed through the opening of the test box 2; after being placed, the pull plate 704 is loosened, so that the clamping column 703 moves downwards under the reset thrust of the spring 705, thereby driving the clamping column 703 to penetrate the limiting block 701, thereby limiting the position of the double-layer high-temperature-resistant glass observation door 3, achieving the effect of installation; when disassembling, the clamping column 703 is pulled up to move out of the limiting block 701 and be located above the connecting plate 5, so that the double-layer high-temperature-resistant glass observation door 3 can be directly removed and disassembled; through the installation of the mounting plate 26 and the bolt body 27, the test box 2 and the chemical adsorption tower 16 can be disassembled; through the sealing plate 19, the gap between the activated carbon plate 18 and the treatment box 13 is sealed; through the setting of the pin nut 22 and the supporting plate 21, the position of the connecting block 20 can be limited, thereby limiting the position of the activated carbon plate 18 and the sealing plate 19, achieving the effect of installing the activated carbon plate 18; when disassembling, the pin nut 22 is only removed.

[0030] The wiring diagram of the operation panel 25, the negative pressure suction device 11, the integrated electrochemical sensor 23 and the audible and light alarm 24 in the utility model belongs to the common knowledge in the field, and its working principle is a known technology, and the model is selected according to actual use, so the control mode and wiring arrangement of the operation panel 25, the negative pressure suction device 11, the integrated electrochemical sensor 23 and the audible and light alarm 24 are not explained in detail.

[0031] The above is only a preferred embodiment of the utility model, and does not limit other forms of the utility model, and any skilled person in the art can change or modify the above disclosed technology content into equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model still belongs to the protection scope of the utility model technical scheme.

Claims

1. A glow wire tester integrating gas purification and gas monitoring, comprising a main board (1), characterized in that: A test chamber (2) is placed on the top of the main board (1). A negative pressure suction device (11) is installed on the inner wall of the test chamber (2). An exhaust pipe (12) is installed at one end of the negative pressure suction device (11). The end of the exhaust pipe (12) away from the negative pressure suction device (11) passes through the test chamber (2) and is fixed with a treatment box (13). An activated carbon plate (18) is inserted into the treatment box (13). A first connecting pipe (14) is fixed at one end of the treatment box (13). A second connecting pipe (15) is installed at the end of the first connecting pipe (14) away from the treatment box (13). 15) A chemical adsorption tower (16) is installed at the end away from the first connecting pipe (14). An integrated electrochemical sensor (23) is installed in both the test chamber (2) and the chemical adsorption tower (16). A double-layer high-temperature resistant glass observation door (3) is snapped onto one end of the test chamber (2). A silicone sealing ring (4) is installed on the outside of the double-layer high-temperature resistant glass observation door (3) at one end of the test chamber (2). A buckle structure (7) for snapping and limiting the position of the double-layer high-temperature resistant glass observation door (3) is provided on the outer wall of the test chamber (2). An operation panel (25) is installed on the outer wall of the test chamber (2).

2. The glow wire test apparatus integrating gas purification and gas monitoring as described in claim 1, characterized in that: The buckle structure (7) includes a limiting block (701) fixed on the outer wall of the double-layer high-temperature resistant glass observation door (3), a fixing block (702) fixed on the outer wall of the test chamber (2), a locking post (703) slidably connected inside the fixing block (702), the bottom end of the locking post (703) penetrating through the limiting block (701), a pull plate (704) fixed on the top end of the locking post (703), and a spring (705) fixed between the pull plate (704) and the fixing block (702) on the outside of the locking post (703).

3. The glow wire test apparatus integrating gas purification and gas monitoring as described in claim 1, characterized in that: The test chamber (2) is equipped with an audible and visual alarm (24) on its top.

4. The glow wire test apparatus integrating gas purification and gas monitoring according to claim 2, characterized in that: Both ends of the pull plate (704) are fixed with limit plates (8), and both limit plates (8) are slidably connected with limit posts (9). The bottom ends of both limit posts (9) are fixed with the fixing block (702), and the top ends of both limit posts (9) are fixed with stop blocks (10).

5. The glow wire test apparatus integrating gas purification and gas monitoring according to claim 1, characterized in that: The activated carbon plate (18) is fixed with a sealing plate (19) at one end outside the treatment box (13), and a connecting block (20) is fixed at the top of the sealing plate (19).

6. The glow wire test apparatus integrating gas purification and gas monitoring according to claim 5, characterized in that: The top two sides of the processing box (13) are fixed with support plates (21), and the two support plates (21) are provided with a pin nut (22), which passes through the connecting block (20).

7. The glow wire test apparatus integrating gas purification and gas monitoring according to claim 1, characterized in that: The activated carbon plate (18) has an opening at one end facing the test chamber (2), and the first connecting pipe (14) and the second connecting pipe (15) are fixed together by flange bolts (17).

8. The glow wire test apparatus integrating gas purification and gas monitoring according to claim 1, characterized in that: The bottom outer walls of the test chamber (2) and the chemical adsorption tower (16) are both fixed with mounting plates (26), and the two mounting plates (26) are respectively fixed to the main board (1) by bolt bodies (27).

9. The glow wire test apparatus integrating gas purification and gas monitoring according to claim 1, characterized in that: Mounting holes (28) are provided at all four corners of the motherboard (1).

10. The glow wire test apparatus integrating gas purification and gas monitoring according to claim 1, characterized in that: Both ends of the double-layer high-temperature resistant glass observation door (3) are fixed with connecting plates (5), and both sides of one end of the connecting plate (5) are fixed with handles (6).

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