A kind of sulfur dioxide gas detector measuring device

Abstract

The utility model discloses a kind of sulfur dioxide gas detector measurement and verification device, it is related to gas detector verification technical field, comprising: roof;Gas measurement component is set in the upper end of the roof, the gas measurement component includes the measuring cylinder being passed through and being arranged on the upper end of roof, and measuring cylinder is fixedly connected with roof, the upper end of the measuring cylinder is fixed with cylinder cover, piston rod is slidably arranged in the inside of the measuring cylinder, the piston rod is passed through cylinder cover, and piston rod is slidably connected with cylinder cover, and the lateral wall of the measuring cylinder is equipped with verification connection port;Driving component is set in the upper end of the roof, and the driving component is connected with piston rod.The utility model has the advantage of multiple concentration gas adaptation, can satisfy modern verification work to the requirement of fast, efficient.

Description

Technical Field

[0001] This utility model relates to the field of gas detector calibration technology, and in particular to a metrological calibration device for a sulfur dioxide gas detector. Background Technology

[0002] In numerous fields such as industrial production, environmental monitoring, and safety protection, the accurate detection of sulfur dioxide (SO2) concentration is crucial as it is a common and highly hazardous pollutant. As a key device for monitoring sulfur dioxide concentration, the accuracy and reliability of sulfur dioxide gas detectors directly impact the control of sulfur dioxide emissions and the assessment of environmental quality. Therefore, ensuring that the metrological performance of sulfur dioxide gas detectors meets standard requirements is fundamental to guaranteeing the safe and efficient operation of related fields.

[0003] Traditional sulfur dioxide gas detector calibration devices have many limitations in adapting to multiple gas concentrations, severely restricting the efficiency and quality of calibration work. Currently, most traditional calibration devices are typically equipped with only a single-concentration standard gas cylinder. When calibrating sulfur dioxide gas detectors of different specifications and ranges, the use of a single-concentration cylinder often fails to meet diverse calibration needs because different detectors are applicable to different standard gas concentration ranges.

[0004] Traditional methods for injecting standard gases of varying concentrations typically require frequent cylinder replacements. This is not only cumbersome and time-consuming to disassemble and install the cylinders, but also poses safety hazards such as gas leaks during the replacement process. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a metrological verification device for a sulfur dioxide gas detector.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A calibration device for a sulfur dioxide gas detector, comprising:

[0008] roof;

[0009] A gas measuring assembly is disposed at the upper end of the top plate. The gas measuring assembly includes a measuring cylinder that passes through the upper end of the top plate and is fixedly connected to the top plate. A cylinder cover is fixed at the upper end of the measuring cylinder. A piston rod is slidably disposed inside the measuring cylinder. The piston rod passes through the cylinder cover and is slidably connected to the cylinder cover. A calibration connection port is provided on the side wall of the measuring cylinder.

[0010] A drive assembly is disposed at the upper end of the top plate, and the drive assembly is connected to the piston rod.

[0011] As a further improvement of this utility model, it also includes multiple gas storage components, each including a gas tank, with a connecting cover connected to the upper end of the gas tank, and a gas delivery pipe fixedly connected to the upper end of the connecting cover. The end of the gas delivery pipe away from the connecting cover is connected to the side wall of the measuring cylinder, and a first electromagnetic one-way valve is provided on the gas delivery pipe.

[0012] As a further improvement of this utility model, it also includes a waste discharge pipe connected to the lower end of the measuring cylinder, and the waste discharge pipe is provided with a second electromagnetic one-way valve.

[0013] As a further improvement of this utility model, the drive assembly includes a fixed frame fixed to the upper end of the top plate, an electric telescopic rod fixedly installed on the top of the fixed frame, and the telescopic end of the electric telescopic rod passing downward through the fixed frame and fixedly connected to the upper end of the piston rod.

[0014] As a further improvement of this utility model, the connecting cover is screwed onto the upper end of the gas tank.

[0015] As a further improvement of this utility model, a bottom plate is provided below the top plate, and four support columns are connected between the bottom plate and the top plate.

[0016] The beneficial effects of this utility model are:

[0017] The multi-concentration gas adaptability advantage is achieved through multiple gas storage components. Each gas storage component's gas tank is sealed by an independent connecting cap screwed together, and the first electromagnetic check valve on each gas delivery pipe is independently controlled. During calibration, the first electromagnetic check valve corresponding to the target concentration can be opened as needed. Without replacing the gas tank or reconnecting the pipeline, the injection of standard gases of different concentrations can be quickly achieved, which greatly shortens the calibration preparation time of different specifications of detectors and significantly improves the versatility and working efficiency of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a sulfur dioxide gas detector calibration device proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the gas measuring component, gas storage component, and electric telescopic rod of a sulfur dioxide gas detector calibration device proposed in this utility model.

[0020] In the diagram: 1. Base plate, 2. Support column, 3. Top plate, 4. Drive assembly, 401. Fixing frame, 402. Electric telescopic rod, 5. Gas measuring assembly, 501. Measuring cylinder, 502. Calibration connection port, 503. Piston rod, 504. Cylinder cover, 6. Gas storage assembly, 601. Gas delivery pipe, 602. First electromagnetic check valve, 603. Connecting cover, 604. Gas tank, 7. Waste discharge pipe, 8. Second electromagnetic check valve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] See Figures 1-2 A sulfur dioxide gas detector calibration device includes: a top plate 3, a bottom plate 1 below the top plate 3, and four support columns 2 connecting the bottom plate 1 and the top plate 3.

[0023] Gas measuring component 5 is disposed at the upper end of top plate 3. Gas measuring component 5 includes measuring cylinder 501 that passes through the upper end of top plate 3 and is fixedly connected to top plate 3. A cylinder cover 504 is fixedly disposed at the upper end of measuring cylinder 501. A piston rod 503 is slidably disposed inside measuring cylinder 501. The piston rod 503 passes through cylinder cover 504 and is slidably connected to cylinder cover 504. A calibration connection port 502 is provided on the side wall of measuring cylinder 501.

[0024] The drive assembly 4 is located at the upper end of the top plate 3. The drive assembly 4 is connected to the piston rod 503. The drive assembly 4 includes a fixed frame 401 fixed at the upper end of the top plate 3. An electric telescopic rod 402 is fixedly installed on the top of the fixed frame 401. The telescopic end of the electric telescopic rod 402 passes through the fixed frame 401 downward and is fixedly connected to the upper end of the piston rod 503.

[0025] It also includes multiple gas storage components 6, each including a gas tank 604. The sulfur dioxide gas inside the multiple gas tanks 604 is different, forming sulfur dioxide gas of various concentrations, thereby enabling the sulfur dioxide gas detector to be tested under different concentrations of sulfur dioxide. A connecting cover 603 is connected to the upper end of the gas tank 604. The connecting cover 603 is screwed to the upper end of the gas tank 604. A gas supply pipe 601 is fixedly connected to the upper end of the connecting cover 603. The end of the gas supply pipe 601 away from the connecting cover 603 is connected to the side wall of the measuring cylinder 501. A first electromagnetic one-way valve 602 is provided on the gas supply pipe 601. One end of the gas supply pipe 601 fixed to the upper end of the connecting cover 603 is connected to the side wall of the measuring cylinder 501, and the other end is connected to the inside of the gas tank 604. The first electromagnetic one-way valve 602 on the gas supply pipe 601 is used to control the gas flow direction.

[0026] It also includes a waste discharge pipe 7 connected to the lower end of the measuring cylinder 501. The waste discharge pipe 7 is equipped with a second electromagnetic check valve 8. The waste discharge pipe 7 connected to the lower end of the measuring cylinder 501 is equipped with a second electromagnetic check valve 8 for discharging waste gas.

[0027] In use, the sulfur dioxide gas detector to be tested is connected to the measuring cylinder 501 through the testing connection port 502. Then, the first electromagnetic check valve 602 corresponding to the target concentration of sulfur dioxide gas to be tested is opened. The electric telescopic rod 402 of the drive assembly 4 is activated to retract, causing the piston rod 503 to slide upward. The internal space of the measuring cylinder 501 increases, forming a negative pressure. Standard sulfur dioxide gas flows into the measuring cylinder 501 through the gas supply pipe 601 and the first electromagnetic check valve 602 until it is full. The first electromagnetic check valve 602 is closed to stop the gas filling. Then, the concentration of sulfur dioxide gas can be detected by the sulfur dioxide gas detector, and the sulfur dioxide gas detector can be calibrated.

[0028] Then, after the verification is completed, the second electromagnetic check valve 8 is opened, and the electric telescopic rod 402 is activated again to extend and push the piston rod 503 to slide downward. The internal pressure of the measuring cylinder 501 increases, and the sulfur dioxide gas is discharged through the exhaust pipe 7, preparing for the next verification.

[0029] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A calibration device for a sulfur dioxide gas detector, characterized in that, include: Top plate (3); A gas measuring component (5) is disposed at the upper end of the top plate (3). The gas measuring component (5) includes a measuring cylinder (501) that passes through the upper end of the top plate (3) and is fixedly connected to the top plate (3). A cylinder cover (504) is fixedly disposed at the upper end of the measuring cylinder (501). A piston rod (503) is slidably disposed inside the measuring cylinder (501). The piston rod (503) passes through the cylinder cover (504) and is slidably connected to the cylinder cover (504). A calibration connection port (502) is provided on the side wall of the measuring cylinder (501). A drive assembly (4) is disposed at the upper end of the top plate (3), and the drive assembly (4) is connected to the piston rod (503); It also includes multiple gas storage components (6), each of which includes a gas tank (604), the upper end of which is connected to a connecting cover (603), the upper end of which is fixedly connected to a gas supply pipe (601), the end of which is away from the connecting cover (603) is connected to the side wall of the measuring cylinder (501), and the gas supply pipe (601) is provided with a first electromagnetic one-way valve (602). It also includes a waste discharge pipe (7) connected to the lower end of the measuring cylinder (501), and a second electromagnetic check valve (8) is provided on the waste discharge pipe (7); The drive assembly (4) includes a fixed frame (401) fixed to the upper end of the top plate (3). An electric telescopic rod (402) is fixedly installed on the top of the fixed frame (401). The telescopic end of the electric telescopic rod (402) passes through the fixed frame (401) downward and is fixedly connected to the upper end of the piston rod (503).

2. The sulfur dioxide gas detector calibration device according to claim 1, characterized in that, The connecting cover (603) is screwed onto the upper end of the gas tank (604).

3. The sulfur dioxide gas detector calibration device according to claim 1, characterized in that, A bottom plate (1) is provided below the top plate (3), and four support columns (2) are connected between the bottom plate (1) and the top plate (3).

Images