Gas calibration device
By designing a simple gas calibration device, utilizing the push rod and housing structure to form a calibration chamber, and combining real-time monitoring of temperature, humidity, and pressure sensors, the problem of complex operation of existing gas detector calibration devices is solved, achieving an efficient and low-cost calibration process.
Patent Information
- Application Number
- CN202422967123.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-03
AI Technical Summary
Existing gas detector calibration devices are complex in structure and cumbersome in operation, resulting in low calibration efficiency and high cost.
A gas calibration device comprising a housing structure, a push rod, and a gas storage structure was designed. A calibration chamber is formed by the sealed sliding connection between the push rod and the housing structure. Calibration gas is introduced into the calibration chamber using the gas storage structure. Real-time monitoring is achieved using temperature, humidity, and pressure sensors, thus realizing a simple and efficient calibration process.
It simplifies the operation process, reduces costs, improves calibration efficiency, and ensures the accuracy and stability of the calibration process.
Smart Images
Figure CN223581895U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a gas detector calibration technical field especially relates to a gas calibration device. BACKGROUND
[0002] In today's industrial production, environmental monitoring, public safety and many other fields, gas detector plays a vital role. Accurate gas detection can avoid industrial explosion, timely warning of harmful gas leakage in the environment, and ensure the safety of personnel-intensive places.
[0003] However, the accuracy of the gas detector depends on regular and accurate calibration. The existing calibration device structure and operation process are complex, which requires professional personnel to operate for a long time, resulting in low calibration efficiency and high cost. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of gas calibration device to solve the problems existing in the prior art, simple structure, easy operation.
[0005] To achieve the above object, the utility model provides the following scheme:
[0006] The utility model provides a kind of gas calibration device, comprising: shell structure, push rod and gas storage structure, the detector to be calibrated is set on the push rod, the push rod is inserted into the shell structure and is sealed sliding connection with the shell structure, the shell structure and the push rod form calibration cavity, the gas storage structure is used to store calibration gas, the gas storage structure can be communicated with the calibration cavity.
[0007] Preferably, the shell structure includes plug and shell, the plug is set in one end of the shell, and the plug and the shell are detachably connected, and the push rod can be stretched out from the other end of the shell.
[0008] Preferably, a first sealing ring is arranged between the plug and the shell.
[0009] Preferably, it further includes driving structure, and the driving structure is used to drive the push rod to slide relative to the shell structure.
[0010] Preferably, it further includes temperature and humidity sensor and pressure sensor, the temperature and humidity sensor is used to detect the temperature and humidity in the calibration cavity, and the pressure sensor is used to detect the pressure in the calibration cavity.
[0011] Preferably, a first stop valve is arranged between the gas storage structure and the calibration cavity.
[0012] Preferably, it further includes gas recovery structure, and the gas recovery structure can be communicated with the calibration cavity.
[0013] Preferably, a second stop valve is arranged between the gas recovery structure and the calibration cavity.
[0014] Preferably, a second sealing ring is arranged between the push rod and the detector to be calibrated, and a third sealing ring is arranged between the push rod and the shell structure.
[0015] The utility model discloses the following technical effects are obtained relative to the prior art:
[0016] The utility model discloses a shell structure and push rod form calibration cavity, set up the detector to be calibrated on the push rod, and the detector to be calibrated slides with the push rod relative to the shell structure, and the gas storage structure passes into the calibration gas into calibration cavity, realizes the calibration of detector. The utility model discloses simple structure, and the operation process is simple, reduces the cost, and improves the calibration efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment, and obviously, the drawing in the following description is only some embodiments of the utility model, and for the ordinary skilled person in the art, other drawings can also be obtained according to these drawings without paying creative labor.
[0018] Figure 1 For the gas calibration device of the utility model Figure 1 ;
[0019] Figure 2 For the gas calibration device of the utility model Figure 2 ;
[0020] Figure 3 For the gas calibration device of the utility model, it is a top view;
[0021] Figure 4 For Figure 3 A-A sectional view of;
[0022] Figure 5 For Figure 3 B-B sectional view of;
[0023] In the drawing: 100-gas calibration device, 1-push rod, 2-outer shell, 3-detector to be calibrated, 4-first sealing ring, 5-second sealing ring, 6-third sealing ring, 7-plug, 8-gas storage structure, 9-temperature and humidity sensor, 10-first stop valve, 11-second stop valve, 12-gas recovery structure, 13-pressure sensor. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.
[0025] The utility model discloses a gas calibration device, to solve the above prior art problem, simple structure, easy operation.
[0026] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, obvious, the utility model will be further detailed below with reference to the drawings and specific embodiment.
[0027] As Figures 1 to 5 The utility model discloses a gas calibration device 100, including: casing structure, push rod 1, gas storage structure 8 and gas recovery structure 12, casing structure plays the role of fixed support, the detector 3 of waiting for calibration is set up on push rod 1, and push rod 1 is sealed sliding connection with casing structure and is inserted into casing structure, and push rod 1 is along casing structure and slides and realizes the process of inhaling and exhaling, and casing structure and push rod 1 form calibration cavity, and gas storage structure 8 is used for storing calibration gas, and gas storage structure 8 is preferably gas bag, and gas storage structure 8 can communicate with calibration cavity, and first stop valve 10 is arranged between gas storage structure 8 and calibration cavity, and gas recovery structure 12 is preferably gas bag, and gas recovery structure 12 can communicate with calibration cavity, and second stop valve 11 is arranged between gas recovery structure 12 and calibration cavity.
[0028] Specifically, in the embodiment, the casing structure includes a plug 7 and an outer shell 2, the plug 7 is arranged at one end of the outer shell 2, a first sealing ring 4 is arranged between the plug 7 and the outer shell 2, and the plug 7 and the outer shell 2 are detachably connected, the push rod 1 can be extended from the other end of the outer shell 2, a second sealing ring 5 is arranged between the push rod 1 and the detector 3 to be calibrated, so that the push rod 1 and the detector 3 to be calibrated are tightly connected, and a third sealing ring 6 is arranged between the push rod 1 and the outer shell 2. The first sealing ring 4 and the third sealing ring 6 ensure that the calibration cavity is airtight.
[0029] The embodiment further includes a driving structure for driving the push rod 1 to slide relative to the casing structure, and the driving structure is a gas cylinder, a hydraulic cylinder, an electric push rod, or a ball screw structure.
[0030] The embodiment further includes a temperature and humidity sensor 9 and a pressure sensor 13, the temperature and humidity sensor 9 is used for detecting the temperature and humidity in the calibration cavity in real time during the calibration process, and the pressure sensor 13 is used for detecting the pressure in the calibration cavity in real time during the calibration process, so as to provide a good foundation condition for the calibration of the detector.
[0031] In this embodiment, the push rod 1 can move forward and backward, and realize air suction and exhaust during movement. The push rod 1 can fix the detector 3 to be calibrated, and is a key driving component of the air suction and exhaust function, drives the detector 3 to be calibrated to move, realizes the detection of the calibration gas in the calibration cavity and the calibration of the detector 3 to be calibrated; the shell 2 is a fixed supporting structure of the whole device, provides a stable mounting basis for other components, and ensures the stability of the device during operation; the detector 3 to be calibrated is detachably connected with the push rod 1, which is convenient for installation and disassembly after calibration; the second sealing ring 5 is used to fix the detector 3 to be calibrated when the push rod 1 moves axially, prevent it from falling off, and ensure the sealing between the push rod 1 and the detector 3 to be calibrated, so as to avoid the influence of gas leakage on the calibration result; the first sealing ring 4 and the third sealing ring 6 are used to seal the calibration gas, seal the calibration gas in the calibration cavity, ensure the stability of the gas environment during calibration, and thus improve the accuracy of calibration; the plug 7 plays a role of fixing and supporting, and has a stable pneumatic sealing effect on the internal structure of the device; the gas storage structure 8 is a component for storing calibration gas, can inject the calibrated calibration gas therein, and through opening the first stop valve 10 and pulling the push rod 1, the calibration gas in the gas storage structure 8 is drawn into the calibration cavity, so as to provide a standard gas source for the calibration of the detector 3 to be calibrated; during the calibration process, the temperature and humidity sensor 9 can monitor the temperature and humidity of the calibration gas in real time, and the pressure sensor 13 can monitor the pressure and sealing condition of the calibration cavity, which are very important for accurate calibration of the detector, can timely feedback the state of the gas, give a digital quantity early warning, and adjust the accuracy of the calibration detector; the first stop valve 10 plays a role when the push rod 1 drives the detector 3 to be calibrated to move outward, can inject the calibration gas in the gas storage structure 8 into the calibration cavity, and has a shutdown function, and accurately controls the injection of the calibration gas; the second stop valve 11 can be opened after the detector 3 to be calibrated is detected, so that the gas in the calibration cavity is uniformly pressed into the gas recycling structure 12 through the push rod 1, and the gas is recycled.
[0032] The embodiment provides a gas calibration method using the gas calibration device 100, installs the detector 3 to be calibrated on the push rod 1, and installs the second sealing ring 5, introduces the calibration gas into the calibration cavity, discharges the air in the calibration cavity, after the air in the calibration cavity is discharged, opens the first stop valve 10, drives the push rod 1 by the driving structure, the push rod 1 drives the detector to move, and the calibration gas in the gas storage structure 8 enters the calibration cavity at a constant speed, in the process, the temperature and humidity in the calibration cavity are monitored by the temperature and humidity sensor 9 and the pressure in the calibration cavity is monitored by the pressure sensor 13, the speed of the push rod 1 driven by the driving structure is controlled by the monitored parameters, the temperature and humidity and the pressure in the calibration cavity are ensured to be kept in a certain range, the pressure is preferably not more than 1MPa, after calibration is completed, the first stop valve 10 is closed, the second stop valve 11 is opened, and the push rod 1 moves in the opposite direction, and the calibration gas in the calibration cavity is discharged to the gas recovery structure 12 at a constant speed.
[0033] The principle and implementation mode of the specific examples are described in the utility model, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, according to the idea of the utility model, the specific implementation mode and application range will be changed for the general technical personnel in the field. In conclusion, the content of the specification should not be understood as the limitation of the utility model.
Claims
1. A gas calibration device, characterized by: The application relates to a calibration device for a detector, comprising: a shell structure, a push rod and a gas storage structure, wherein the detector to be calibrated is arranged on the push rod, the push rod extends into the shell structure and is in sealed sliding connection with the shell structure, the shell structure and the push rod form a calibration cavity, and the gas storage structure is used for storing calibration gas and can be in communication with the calibration cavity.
2. The gas calibration device of claim 1, wherein: The shell structure comprises a plug and a shell, the plug is arranged at one end of the shell, and the plug is detachably connected with the shell, and the push rod can extend out of the other end of the shell.
3. The gas calibration device of claim 2, wherein: A first sealing ring is arranged between the plug and the shell.
4. The gas calibration device of claim 1, wherein: A driving structure is further arranged, which is used for driving the push rod to slide relative to the shell structure.
5. The gas calibration device of claim 1, wherein: A temperature and humidity sensor and a pressure sensor are further arranged, the temperature and humidity sensor is used for detecting the temperature and humidity in the calibration cavity, and the pressure sensor is used for detecting the pressure in the calibration cavity.
6. The gas calibration device of claim 1, wherein: A first stop valve is arranged between the gas storage structure and the calibration cavity.
7. The gas calibration device of claim 1, wherein: A gas recovery structure is further arranged, which can be in communication with the calibration cavity.
8. The gas calibration device of claim 7, wherein: A second stop valve is arranged between the gas recovery structure and the calibration cavity.
9. The gas calibration device of claim 1, wherein: A second sealing ring is arranged between the push rod and the detector to be calibrated, and a third sealing ring is arranged between the push rod and the shell structure.