CN218729395U - Gas alarm calibrating device with adjustable concentration - Google Patents
Gas alarm calibrating device with adjustable concentration Download PDFInfo
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- CN218729395U CN218729395U CN202221660118.3U CN202221660118U CN218729395U CN 218729395 U CN218729395 U CN 218729395U CN 202221660118 U CN202221660118 U CN 202221660118U CN 218729395 U CN218729395 U CN 218729395U
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- gas alarm
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model relates to a combustible and gas alarm examination technical field, concretely relates to gas alarm calibrating installation of adjustable concentration. The device comprises a movable support, wherein a box body is arranged on the movable support, and the box body is an annular hollow box body; the upper part of the box body is provided with a window, the window is provided with an openable sealing door, a hanging frame is arranged in the box body corresponding to the window, and the outer side edge of a rectifier grid arranged in the box body at the front side of the hanging frame is connected with the inner side wall of the box body; the lower part of the box body is provided with a fan, and the wind direction of the fan is towards one side of the rectifying grid; the box between the air inlet and the fan is provided with an air outlet, the box above the hanging rack is provided with a gas sampling pump, the gas sampling pump is connected with a gas analyzer arranged on the box, and the box is also provided with an anemometer. The utility model discloses simple structure can adjust the gaseous concentration of monitoring.
Description
Technical Field
The utility model relates to a combustible and gas alarm examination technical field, concretely relates to gas alarm calibrating installation of adjustable concentration.
Background
In general, the gas alarm needs to be calibrated and tested in time before being used. Regardless of the instrument, careful examination and calibration should be performed before use, especially for gas detectors, and the accuracy of the instrument itself may vary before use if timely calibration and detection is not performed. Therefore, it is necessary to perform a timely calibration and inspection before the gas detector is used. Most of calibrating devices of gas alarms in the prior art are metal devices, and the phenomenon of gas concentration reduction can occur after a period of calibration, so that the calibration of the gas alarms is inaccurate. The existing gas alarm calibrating device cannot adjust the flow rate of gas in the device.
SUMMERY OF THE UTILITY MODEL
To foretell not enough, the utility model provides a gas alarm calibrating installation of adjustable concentration.
The utility model provides a technical scheme that its technical problem adopted is: a gas alarm calibrating device with adjustable concentration comprises a movable support, wherein a box body is arranged on the movable support, and the box body is an annular hollow box body;
the upper part of the box body is provided with a window, an openable sealing door is arranged on the window, a hanging frame used for placing a gas detector is arranged in the box body corresponding to the window, a rectifier grid is arranged in the box body on the front side of the hanging frame, and the outer side edge of the rectifier grid is connected with the inner side wall of the box body;
a fan is arranged at the lower part of the box body, and the wind direction of the fan is towards one side of the rectifying grid; the air inlet is arranged on the box body between the rectifier grids and the fans, the air outlet is arranged on the box body between the hanging rack and the fans, the box body above the hanging rack is provided with an air sampling pump, the air sampling pump is connected with an air analyzer arranged on the box body, and the box body is further provided with an anemometer.
Preferably, the bottom of the movable support is provided with universal wheels.
Preferably, a transparent window is arranged on the sealing door.
Preferably, the box body comprises two sections of horizontally arranged straight pipelines and four sections of bent pipelines, two ends of the two sections of straight pipelines are respectively connected with one section of bent pipeline through flanges to form a U-shaped pipeline, and the two U-shaped pipelines are connected through flanges to form an annular pipeline.
As optimization, a controller is arranged on the box body and provided with a display screen, and the fan, the anemometer and the hygrothermograph are all communicated with the controller.
The utility model has the advantages that: the utility model provides a gas alarm calibrating device with adjustable concentration, which has simple structure and reasonable design; 1. the gas sampling pump and the gas analyzer are arranged, and when the gas concentration is lower than the monitoring concentration of the gas alarm, the gas inlet is automatically filled with monitoring gas. 2. The rectifying grid is arranged, so that the air flow can be balanced; the fan is arranged to make the gas in the device flow circularly.
Drawings
Fig. 1 is a schematic structural view of the present invention;
the device comprises a movable support 1, a universal wheel 101, a box 2, a box 201, an air inlet 202, a rectification grid 203, an air outlet 3, a display screen 301, a hygrothermograph 302, an anemograph 303, a fan 4, a gas analyzer 401, a gas sampling pump 5, a transparent window 501 and a sealing door.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The calibration device for the gas alarm with the adjustable concentration, as shown in fig. 1, comprises a movable support 1, wherein a box body 2 is arranged on the movable support 1, and the box body 2 is an annular hollow box body 2; the monitoring gas is circulated in the annular hollow case 2.
A window is arranged at the upper part of the box body 2, an openable sealing door 501 is arranged on the window, a hanging rack for placing a gas detector is arranged in the box body 2 corresponding to the window, a rectifier grid 202 is arranged in the box body 2 at the front side of the hanging rack, and the outer side edge of the rectifier grid 202 is connected with the inner side wall of the box body 2;
a fan 303 is arranged at the lower part of the box body 2, and the wind direction of the operation of the fan 303 faces to one side of the flow straightener 202; an air inlet 201 is formed in the box body 2 between the rectifier grid 202 and the fan 303, an air outlet is formed in the box body 2 between the hanging rack and the fan 303, an air sampling pump 401 is arranged on the box body 2 above the hanging rack, the air sampling pump 401 is connected with an air analyzer 4 arranged on the box body 2, and an anemometer 302 is further arranged on the box body 2. The direction of the mouth of blowing is unanimous with the direction of the ring conduit of box 2 body, and air inlet 201 can set up between fan 303 and grille shutter 202, and the wind that fan 303 blew out passes through air inlet 201 department earlier, and the wind that blew out in the fan 303 drives monitoring gas and flows in box 2, blows the monitoring gas of air inlet 201 release, through grille shutter 202, and grille shutter 202 balances the air current that fan 303 blew out, and the gas alarm department is placed again, makes the velocity of flow even, and the monitoring gas that gas concentration is even passes through the gas alarm the stores pylon with be provided with gas vent 203 on the box 2 between the fan 303. After the gas alarm is verified, the gas sampling pump 401 and the gas analyzer 4 are closed, the exhaust port 203 is opened, pure gas is filled from the gas inlet 201 for a period of time, the fan 303 is closed, the sealing door 501 is opened, and the gas alarm is taken out.
In this embodiment, a transparent window 5 is provided on the sealing door 501. The gas alarm can be monitored through a transparent window 5.
In this embodiment, the box body 2 includes two sections of horizontally arranged straight pipelines and four sections of bent pipelines, two ends of the two sections of straight pipelines are respectively connected with one section of bent pipeline through flanges to form a U-shaped pipeline, and the two U-shaped pipelines are connected through flanges to form an annular pipeline.
In this embodiment, a controller is arranged on the box body 2, the controller is provided with a display screen 3, and the fan 303, the anemometer 302 and the hygrothermograph 301 are all communicated with the controller. The temperature and humidity of the environment in the box body 2 are monitored and controlled in real time, and the air speed blown out by the fan 303 is adjusted.
In this embodiment, the bottom of the movable support 1 is provided with a universal wheel 101.
The working principle is as follows: the utility model provides a pair of gas alarm calibrating installation of adjustable concentration, during the use, drag portable support 1 to appointed position, open sealing door 501, put into gas alarm, close sealing door 501, fill into gas from air inlet 201, then start fan 303, thereby according to anemograph 302's demonstration, adjustable display screen 3 carries out real-time regulation to the wind speed that fan 303 blew off. Fan 303 can blow gaseous circulation flow in box 2, because the effect of centrifugal force, the velocity of flow inequality can appear when gaseous through the gas alarm, consequently, has installed a flow straightener 202 additional in the wind gap end of box 2 inside, and the velocity of flow is even when making gaseous through the gas alarm. After the gas alarm is detected for a period of time, because the device is a metal device and cannot be completely sealed, after the monitoring gas circularly flows for a period of time, the concentration of the monitoring gas may be reduced, the gas sampling pump 401 samples the monitoring gas in the box body 2 and then transfers the sampled monitoring gas to the gas analyzer 4, and when the gas analyzer 4 monitors that the concentration of the monitoring gas is lower than the alarm concentration of the gas alarm, the monitoring gas is automatically filled from the gas inlet 201. When the gas analyzer 4 monitors that the concentration of the gas is higher than or equal to the alarm concentration of the gas alarm, the gas inlet is automatically stopped. After the gas alarm is calibrated, the gas sampling pump 401 and the gas analyzer 4 are closed, pure gas is filled into the gas inlet 201, the gas outlet 203 is opened, the fan 303 is allowed to blow for a period of time, after the monitoring gas is exhausted, the fan 303 is closed, the gas inlet 201 and the gas outlet are closed, the transparent window 5 is opened, and the gas alarm is taken out.
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.
Claims (5)
1. The utility model provides a gas alarm calibrating installation of adjustable concentration which characterized in that: the device comprises a movable support, wherein a box body is arranged on the movable support, and the box body is an annular hollow box body;
the upper part of the box body is provided with a window, an openable sealing door is arranged on the window, a hanging frame used for placing a gas detector is arranged in the box body corresponding to the window, a rectifier grid is arranged in the box body on the front side of the hanging frame, and the outer side edge of the rectifier grid is connected with the inner side wall of the box body;
a fan is arranged at the lower part of the box body, and the wind direction of the fan is towards one side of the rectifying grid; the air inlet is arranged on the box body between the rectifier grids and the fans, the air outlet is arranged on the box body between the hanging rack and the fans, the gas sampling pump is arranged on the box body above the hanging rack, the gas sampling pump is connected with a gas analyzer arranged on the box body, and the anemometer is further arranged on the box body.
2. A tunable concentration gas alarm verification device according to claim 1, wherein: the bottom of the movable support is provided with universal wheels.
3. A tunable concentration gas alarm verification device according to claim 1, wherein: and a transparent window is arranged on the sealing door.
4. A tunable concentration gas alarm verification device according to claim 1, wherein: the box body comprises two sections of straight pipelines and four sections of bent pipelines which are horizontally arranged, two ends of the two sections of straight pipelines are respectively connected with one section of bent pipeline through flanges to form a U-shaped pipeline, and the two U-shaped pipelines are connected through flanges to form an annular pipeline.
5. A tunable concentration gas alarm verification device according to claim 1, wherein: the box is provided with a controller, the controller is provided with a display screen, and the fan, the anemometer and the hygrothermograph are all communicated with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221660118.3U CN218729395U (en) | 2022-06-29 | 2022-06-29 | Gas alarm calibrating device with adjustable concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221660118.3U CN218729395U (en) | 2022-06-29 | 2022-06-29 | Gas alarm calibrating device with adjustable concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218729395U true CN218729395U (en) | 2023-03-24 |
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ID=85607510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221660118.3U Active CN218729395U (en) | 2022-06-29 | 2022-06-29 | Gas alarm calibrating device with adjustable concentration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218729395U (en) |
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2022
- 2022-06-29 CN CN202221660118.3U patent/CN218729395U/en active Active
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