Hydrogen detection device with self-calibration function

Abstract

The hydrogen detection device with the self-calibration function comprises a fixed shell, a detection sensor, a controller, a processor and an electric power storage unit are arranged in the fixed shell, a fixed box body is arranged on the inner wall of one side of the fixed shell, an air guide pipe is arranged on the wall body of one side of the fixed shell in a communicated mode, and the air guide pipe is connected with a power source. A sliding mounting plate is slidably arranged in the fixed shell, a mounting groove is formed in the top surface of the sliding mounting plate, a dismounting plate is arranged in the mounting groove, the detection sensor is located on the top surface of the dismounting plate, and a voltage reference source cooperatively connected with the detection sensor is arranged on the top surface of the dismounting plate. Compared with the prior art, the automatic calibration circuit has the advantages that the detection sensor is matched with the voltage reference source, whether the output voltage of the detection sensor is accurate or not can be determined by comparing the output voltage of the detection sensor with the reference voltage of the voltage reference source, and automatic calibration work of the detection sensor is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen detection technical field, specifically point to a kind of hydrogen detection device with self-calibration function. BACKGROUND

[0002] In industrial production, hydrogen is a common dangerous gas, which needs to be monitored and controlled in real time.

[0003] The traditional hydrogen detection device usually needs to be calibrated and maintained manually to ensure its accuracy, which is tedious and time-consuming. Moreover, due to environmental factors, there may be some errors in the calibration process, resulting in inaccurate detection results, which requires a hydrogen detection device with self-calibration function. SUMMARY

[0004] The technical problem to be solved by the utility model is low efficiency of manual maintenance, and it is not easy to do so. A hydrogen detection device with self-calibration function is provided.

[0005] To solve the above technical problems, the utility model provides a technical scheme: a hydrogen detection device with self-calibration function, comprising a fixed shell, a detection sensor, a controller, a processor and a power storage unit are arranged in the fixed shell, a display screen cooperating with the detection sensor is arranged on the outer wall of the fixed shell, a fixed box is arranged on the inner wall of one side of the fixed shell, a wind guide pipe is communicated with the side wall of the fixed shell, the wind guide pipe is communicated with the inside of the fixed box, a sliding mounting plate is slidably arranged in the fixed shell, an installation groove is arranged on the top surface of the sliding mounting plate, a dismounting plate is arranged in the installation groove, the detection sensor is arranged on the top surface of the dismounting plate, a voltage reference source cooperating with the detection sensor is arranged on the top surface of the dismounting plate, a set of limiting mechanisms is symmetrically arranged in the installation groove on both sides of the dismounting plate.

[0006] As an improvement, an opening is communicated with the side wall of the fixed shell away from the display screen, a slot cooperating with the opening is arranged on the fixed shell, a cover plate cooperating with the opening is slidably arranged in the slot, a sealing plate cooperating with the opening is arranged at the bottom end of the cover plate, an anti-slip strip is fixedly arranged on the outer wall of the cover plate, which facilitates the maintenance work in the equipment, thereby facilitating the installation of the calibration unit.

[0007] As an improvement, a plurality of limiting holes are arranged through the fixed shell, and a bolt is arranged through the limiting hole and screwed with the cover plate to limit the installation of the cover plate and improve the sealing performance of the fixed shell.

[0008] As an improvement, an annular groove is arranged at one end of the wind guide pipe away from the fixed shell, and a filter cover cylinder extending into the wind guide pipe is fitted and placed in the annular groove, which facilitates the screening of the gas to be detected, removes impurities and avoids affecting the detection assembly.

[0009] As the improvement, the fixing box is internally provided with a clamping groove between the air duct and the sliding mounting plate, the clamping groove penetrates through the front side wall of the fixing box, and a drying plate is matched and clamped in the clamping groove, so that the dehumidification function is realized, and the damage risk of the detection sensor is reduced.

[0010] As the improvement, the limiting mechanism comprises a round rod fixed in the mounting groove, a swing sleeve is rotationally arranged at the center of the round rod, an extension plate extending above the dismounting plate is fixedly arranged on the swing sleeve, a limiting plate abutting against the top surface of the dismounting plate is fixedly arranged on the extension plate, and reset springs located around the round rod are connected between the two sides of the swing sleeve and the inner wall of the mounting groove, so that the detection sensor and the voltage reference source can be quickly dismounted and mounted, thereby facilitating smooth maintenance work and ensuring the calibration accuracy.

[0011] Compared with the prior art, the detection sensor cooperates with the voltage reference source, the output voltage of the detection sensor is compared with the reference voltage of the voltage reference source, whether the output voltage of the detection sensor is accurate can be determined, and the automatic calibration work of the detection sensor is realized.

[0012] The fixing box is arranged, the sliding mounting plate is arranged in the fixing box, the installation operation of the voltage reference source can be quickly realized through the limiting mechanism on the sliding mounting plate, maintenance is facilitated, and the accuracy of the detection result is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the first perspective view of the hydrogen detection device with the self-calibration function.

[0014] Figure 2 is the second perspective view of the hydrogen detection device with the self-calibration function.

[0015] Figure 3 is the first sectional perspective view of the hydrogen detection device with the self-calibration function.

[0016] Figure 4 is the second sectional perspective view of the hydrogen detection device with the self-calibration function.

[0017] Figure 5 is the perspective view of the fixing box of the hydrogen detection device with the self-calibration function.

[0018] Figure 6 is Figure 5 the structural schematic view of part A.

[0019] As shown in the figure: 1, fixed shell; 2, detection sensor; 3, controller; 4, processor; 5, power storage unit; 6, display screen; 7, fixed box; 8, air duct; 9, sliding mounting plate; 10, mounting groove; 11, dismounting plate; 12, voltage reference source; 13, limiting mechanism; 14, opening; 15, slot; 16, cover plate; 17, sealing plate; 18, anti-skid strip; 19, limiting hole; 20, annular groove; 21, filter cover cylinder; 22, clamping groove; 23, drying plate; 24, round rod; 25, swing sleeve; 26, extension plate; 27, limiting plate; 28, return spring. DETAILED DESCRIPTION

[0020] The utility model will be made further detailed explanation in combination with the drawings below.

[0021] Example one

[0022] In combination with Figures 1-3 And 5-6 show, a hydrogen detection device with self-calibration function, including fixed shell 1, be equipped with detection sensor 2, controller 3, processor 4 and power storage unit 5 in fixed shell 1, the fixed shell 1 outer wall is equipped with the display screen 6 that cooperates with detection sensor 2, the fixed shell 1 one side inner wall is equipped with fixed box 7, the fixed shell 1 one side wall body is equipped with air duct 8, and the air duct 8 is communicated with the inside of fixed box 7, and the detection sensor 2 is arranged in the fixed shell 1, and the fixed shell 1 is equipped with the voltage reference source 12 that is connected with detection sensor 2, and the air duct 8 is equipped with annular groove 20 away from the one end of fixed shell 1, and the annular groove 20 is equipped with filter cover cylinder 21 that is placed in cooperation and extends into the air duct 8, and the fixed box 7 is equipped with clamping groove 22 between air duct 8 and sliding mounting plate 9, and the clamping groove 22 penetrates the front side wall body of fixed box 7, and the clamping groove 22 is equipped with drying plate 23 in cooperation and is placed,;

[0023] Through the above structure, in use, the gas to be detected is sucked into the fixed shell 1 through the air duct 8, the impurities in the air are filtered by the filter cover cylinder 21 during the sucking process, the moisture in the air is removed by the drying plate 23, then the detection sensor 2 works to detect the hydrogen concentration in the air, the detected hydrogen concentration is displayed on the display screen 6 after being processed by the processor 4, and the processor 4 receives the output voltage during the working process of the detection sensor 2, and the processor 4 compares the output voltage with the reference voltage of the voltage reference source 12, and when there is a difference, the controller 3 automatically adjusts the parameters of the detection sensor 2.

[0024] Example two

[0025] On the basis of example one in combination with the drawings Figure 4As shown, the fixed shell 1 is provided with a sliding mounting plate 9 inside, the top surface of the sliding mounting plate 9 is provided with a mounting groove 10, the mounting groove 10 is provided with a dismounting plate 11, the voltage reference source 12 and the detection sensor 2 are arranged on the top surface of the dismounting plate 11, the fixed shell 1 is provided with an opening 14 on the side wall away from the display screen 6, the fixed shell 1 is provided with a slot 15 matched with the opening 14, the slot 15 is provided with a cover plate 16 matched with the opening 14, the bottom end of the cover plate 16 is provided with a sealing plate 17 matched with the opening 14, the outer wall of the cover plate 16 is fixedly provided with an anti-skid strip 18, a plurality of limiting holes 19 are provided through the fixed shell 1, bolts are provided through the limiting holes 19 and are screwed with the cover plate 16, a set of limiting mechanisms 13 are symmetrically arranged in the mounting groove 10 and are located on both sides of the dismounting plate 11, the limiting mechanism 13 comprises a round rod 24 fixed in the mounting groove 10, the round rod 24 is rotatably provided with a swing sleeve 25 in the center, the swing sleeve 25 is fixedly provided with an extension plate 26 extending above the dismounting plate 11, the extension plate 26 is fixedly provided with a limiting plate 27 abutting against the top surface of the dismounting plate 11, the swing sleeve 25 is connected with the inner wall of the mounting groove 10 on both sides and is provided with a reset spring 28 around the round rod 24.

[0026] Through the above structure, the bolts in the limiting holes 19 are removed before use, the cover plate 16 is pushed out of the slot 15 through the anti-skid strip 18, the opening 14 is opened, then the components in the fixed shell 1 can be repaired, the sliding mounting plate 9 can be pulled out of the fixed box 7, the limiting plate 27 is away from the dismounting plate 11 by rotating the swing sleeve 25, the dismounting plate 11 can be taken out of the mounting groove 10, the voltage reference source 12 and the detection sensor 2 on the dismounting plate 11 are repaired, the normal work of the voltage reference source 12 is ensured, then the dismounting plate 11 is put back into the mounting groove 10, the swing sleeve 25 is released to push the limiting plate 27 abutting against the dismounting plate 11 under the action of the reset spring 28, the repair and installation of the automatic calibration mechanism are completed, the sliding mounting plate 9 is pushed into the fixed box 7, and the door plate of the fixed box 7 is closed, the drying plate 23 can be replaced at the same time, finally the cover plate 16 is pushed back into the slot 15, the sealing plate 17 abuts against the fixed shell 1, the bolts are screwed with the cover plate 16 through the limiting holes 19, the repair and assembly of the fixed shell 1 are completed, and the accuracy of automatic calibration during detection is ensured.

[0027] The utility model discloses in the specific implementation, the bolt on the limiting hole 19 is taken off before use, pushes out the groove 15 through the antiskid strip 18 sliding cover plate 16, realizes the opening of opening 14, after pulling the sliding mounting plate 9, can push out fixed box 7, rotates swing sleeve 25 to make that limiting plate 27 is far from dismounting plate 11, can take out dismounting plate 11 from mounting groove 10, installs voltage reference source 12 and detection sensor 2 on dismounting plate 11, after putting back dismounting plate 11 in mounting groove 10, release swing sleeve 25 makes it push limiting plate 27 close dismounting plate 11 under the action of reset spring 28, ensure the normal work of voltage reference source 12, complete the installation of automatic calibration mechanism, push sliding mounting plate 9 into fixed box 7, and close the door plate of fixed box 7, finally push cover plate 16 back into the groove 15, make that sealing plate 17 close fixed shell 1, use bolt to pass through limiting hole 19 and the screw joint of cover plate 16;

[0028] When using, the gas to be detected is sucked into fixed shell 1 through air guide pipe 8, in the process of sucking, filter cover cylinder 21 filters the impurities in the air, drying plate 23 removes the moisture in the air, then detection sensor 2 works to detect the hydrogen concentration in the air, the detected hydrogen concentration is displayed on display screen 6 after being processed by processor 4, and processor 4 receives the output voltage during the working process of detection sensor 2, and processor 4 compares the output voltage with the reference voltage of voltage reference source 12, and when there is a difference, controller 3 automatically adjusts the parameters of detection sensor 2;

[0029] The bolt on the limiting hole 19 is taken out periodically, the cover plate 16 is pushed out of the groove 15 through the antiskid strip 18 sliding, the opening 14 is opened, then the components in the fixed shell 1 can be overhauled, the sliding mounting plate 9 can be pulled out of the fixed box 7, the limiting plate 27 is away from the dismounting plate 11 by rotating the swing sleeve 25, the dismounting plate 11 can be taken out from the mounting groove 10, the voltage reference source 12 and the detection sensor 2 on the dismounting plate 11 are overhauled, the normal work of the voltage reference source 12 is ensured, then the dismounting plate 11 is put back into the mounting groove 10, the swing sleeve 25 is released, the limiting plate 27 is pushed close to the dismounting plate 11 under the action of the reset spring 28, the overhauling and installation of the automatic calibration mechanism are completed, the sliding mounting plate 9 is pushed into the fixed box 7, and the door plate of the fixed box 7 is closed, the drying plate 23 can be replaced at the same time, finally the cover plate 16 is pushed back into the groove 15, the sealing plate 17 is close to the fixed shell 1, the bolt is used to pass through the limiting hole 19 and the screw joint of the cover plate 16, the overhauling and assembling operation of the fixed shell 1 are completed, and the accuracy of automatic calibration during detection is ensured.

[0030] The above has described the utility model and its implementation mode, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A hydrogen detection device with self-calibration function, comprising a fixed shell (1), a detection sensor (2), a controller (3), a processor (4) and a power storage unit (5) are arranged in the fixed shell (1), and a display screen (6) matched with the detection sensor (2) is arranged on the outer wall of the fixed shell (1), characterized in that: a fixed box (7) is arranged on the inner wall of one side of the fixed shell (1), a wind guide pipe (8) is arranged in communication with the fixed box (7), the wind guide pipe (8) is in communication with the inside of the fixed box (7), a sliding mounting plate (9) is slidingly arranged in the fixed shell (1), an installation groove (10) is arranged on the top surface of the sliding mounting plate (9), a dismounting plate (11) is arranged in the installation groove (10), the detection sensor (2) is arranged on the top surface of the dismounting plate (11), a voltage reference source (12) matched with the detection sensor (2) is arranged on the top surface of the dismounting plate (11), and a set of limiting mechanisms (13) are symmetrically arranged in the installation groove (10) and located on both sides of the dismounting plate (11).

2. The hydrogen detection device with self-calibration function according to claim 1, characterized in that: An opening (14) is arranged in communication with the wall of the side of the fixed shell (1) away from the display screen (6), a slot (15) matched with the opening (14) is arranged on the fixed shell (1), a cover plate (16) matched with the opening (14) is slidingly arranged in the slot (15), a sealing plate (17) matched with the opening (14) is arranged at the bottom end of the cover plate (16), and an anti-skid strip (18) is fixedly arranged on the outer wall of the cover plate (16).

3. The hydrogen detection device with self-calibration function according to claim 2, characterized in that: A plurality of limiting holes (19) are arranged in penetration through the fixed shell (1), and bolts are arranged in penetration through the limiting holes (19) and are screwed with the cover plate (16).

4. The hydrogen detection device with self-calibration function according to claim 1, characterized in that: An annular groove (20) is arranged at the end of the wind guide pipe (8) away from the fixed shell (1), and a filter cover cylinder (21) extending into the wind guide pipe (8) is arranged in the annular groove (20) in a matched manner.

5. The hydrogen detection device with self-calibration function according to claim 1, characterized in that: A clamping groove (22) is arranged in the fixed box (7) between the wind guide pipe (8) and the sliding mounting plate (9), the clamping groove (22) penetrates through the front wall of the fixed box (7), and a drying plate (23) is arranged in the clamping groove (22) in a matched manner.

6. The hydrogen detection device with self-calibration function according to claim 1, characterized in that: The limiting mechanism (13) comprises a round rod (24) fixed in the installation groove (10), an oscillating sleeve (25) is rotatably arranged at the center of the round rod (24), an extension plate (26) extending above the dismounting plate (11) is fixedly arranged on the oscillating sleeve (25), a limiting plate (27) abutting against the top surface of the dismounting plate (11) is fixedly arranged on the extension plate (26), and a reset spring (28) located around the round rod (24) is connected between the oscillating sleeve (25) and the inner wall of the installation groove (10).

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