CN210665591U - Air monitor with variable pressure environment - Google Patents
Air monitor with variable pressure environment Download PDFInfo
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- CN210665591U CN210665591U CN201920800041.7U CN201920800041U CN210665591U CN 210665591 U CN210665591 U CN 210665591U CN 201920800041 U CN201920800041 U CN 201920800041U CN 210665591 U CN210665591 U CN 210665591U
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Abstract
The application relates to an air monitor with a variable pressure environment. The air monitor with the variable pressure environment comprises an air monitor shell, wherein a cavity is formed in the air monitor shell; the separation plate is arranged in the air monitor shell and divides the containing cavity into a first cavity and a second cavity; an electrochemical sensor disposed within the second cavity; the pressure control system comprises an output end, and the output end extends into the second cavity; wherein the pressure control system is configured to provide gas to the second chamber to regulate the pressure within the second chamber. The air monitor with the changeable pressure environment adjusts the pressure in the second cavity by arranging the pressure control system, so that the electrochemical sensor can work under the ideal pressure environment, and the accuracy of the electrochemical sensor is guaranteed.
Description
Technical Field
The application relates to the technical field of air monitoring instruments for atmospheric detection, in particular to an air monitoring instrument with a variable pressure environment.
Background
The atmosphere detection air monitor can simultaneously monitor the concentration of gas and inhalable particles and display the concentration on the same display screen. The instrument can monitor various parameters simultaneously, the working mode of the instrument is automatic sampling and automatic analysis, the measured concentration is directly displayed on a display screen, the daily average and the monthly average are automatically calculated, and the monitoring data (including the daily average and the monthly average) of 30 days can be stored.
In practical use, the electrochemical sensor may have a measurement deviation due to the change of the external pressure, for example, in the case that the external pressure is not consistent with the pressure required by the electrochemical sensor itself, which is generally the case of low external pressure, and in this case, the accuracy of the electrochemical sensor may be greatly affected.
Therefore, in view of the above deficiencies, there is a need to provide a technical solution to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
SUMMERY OF THE UTILITY MODEL
The technical problem that this application will be solved lies in, to the defect among the prior art, provides a changeable air monitor of pressure environment.
In order to solve the technical problem, the application provides an air monitor with a variable pressure environment, which comprises an air monitor shell, a pressure sensor and a controller, wherein a cavity is formed in the air monitor shell; the separation plate is arranged in the air monitor shell and divides the containing cavity into a first cavity and a second cavity; an electrochemical sensor disposed within the second cavity; the pressure control system comprises an output end, and the output end extends into the second cavity; wherein the pressure control system is configured to regulate the pressure within the second chamber.
Optionally, the pressure environment variable air monitor pressure control system comprises: a gas source having a gas stored therein; the air pump is connected with the air source; one end of the gas pipeline is connected with the gas pump, and the other end of the gas pipeline is the output end; wherein the air pump is used for supplying the air in the air source to the second cavity.
Optionally, an air outlet is arranged on the air monitor shell, and the air outlet is communicated with the second cavity; the pressure control system further comprises a pressure relief valve, and the pressure relief valve is arranged at the air outlet. The pressure relief valve is used for opening when the pressure in the second cavity reaches a threshold value, so that the pressure is relieved for the second cavity.
Optionally, the pressure control system further comprises a pressure sensor disposed within the second cavity.
Optionally, the pressure control system further includes a pressure controller, the pressure controller is connected to the pressure sensor and the air pump respectively, and the pressure controller is configured to receive pressure information transmitted by the pressure sensor and control the air pump to operate according to the pressure information.
Optionally, the variable pressure ambient air monitor further comprises: . The gas temperature control system is arranged outside the gas source; the gas temperature control system is used for changing the temperature of the pressure gas in the gas source.
Optionally, the air monitor with a variable pressure environment further comprises a heat insulation plate, and the heat insulation plate is arranged in the first cavity and adjacent to the partition plate.
Optionally, the gas temperature control system comprises: a housing at least partially enclosing the gas source, the housing comprising an inner wall and an outer wall with a cavity therebetween; a thermally conductive liquid disposed within the cavity; and the heating device is used for heating the heat-conducting liquid.
Optionally, the gas source includes a housing made of a thermally conductive metal.
Optionally, a wind-proof block is arranged at a position, close to the air inlet, of the second cavity.
The air monitor with the changeable pressure environment adjusts the pressure in the second cavity by arranging the pressure control system, so that the electrochemical sensor can work under the ideal pressure environment, and the accuracy of the electrochemical sensor is guaranteed.
Drawings
Fig. 1 is a schematic structural view of an air monitor with a variable pressure environment according to a first embodiment of the present application.
101. An air monitor housing; 102. a partition plate; 103. a first cavity; 104. A second cavity; 105. an electrochemical sensor; 106. a heat insulation plate; 107. A particulate matter sensor; 108. a temperature and humidity sensor; 109. A gas source; 110. an air pump; 111. a gas conduit; 112. a pressure relief valve; 113. A pressure sensor; 115. and (6) wind-proof grid blocks.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a schematic structural view of an air monitor with a variable pressure environment according to a first embodiment of the present application.
The air monitor with variable pressure environment as shown in fig. 1 comprises an air monitor shell 101, a partition plate 102, an electrochemical sensor 105 and a pressure control system, wherein the air monitor shell 101 is internally provided with a cavity; the partition plate 102 is arranged in the air monitor shell 101 and divides the cavity into a first cavity 103 and a second cavity 104; an electrochemical sensor 105 is disposed within the second cavity 104; the pressure control system comprises an output end which extends into the second cavity 104; wherein the pressure control system is configured to provide gas to the second chamber to regulate the pressure within the second chamber.
The air monitor with the changeable pressure environment adjusts the pressure in the second cavity by arranging the pressure control system, so that the electrochemical sensor can work under the ideal pressure environment, and the accuracy of the electrochemical sensor is guaranteed.
In this embodiment, the pressure control system of the air monitor with variable pressure environment includes a gas source 109, a gas pump 110 and a gas pipeline 111, wherein gas is stored in the gas source 109, and it is understood that the gas may be pressure gas or standard gas; the air pump 110 is connected with the air source 109; one end of the air pipeline 111 is connected with the air pump 110, and the other end is an output end; the air pump is used for supplying air in the air source to the second cavity.
In this embodiment, the air monitor housing 101 is provided with an air outlet, and the air outlet is communicated with the second cavity 104; the pressure control system further comprises a pressure relief valve 112, the pressure relief valve 112 being arranged at the air outlet. The pressure relief valve 112 is configured to open when the pressure in the second chamber reaches a threshold value, so as to relieve the pressure in the second chamber. In this way, it is possible to prevent the electrochemical sensor from being damaged by excessive pressure in the second chamber.
Referring to fig. 1, in the present embodiment, the pressure control system further includes a pressure sensor 113, and the pressure sensor 113 is disposed in the second cavity. The pressure in the second chamber is known by means of the pressure sensor 113.
In this embodiment, the pressure control system further includes a pressure controller, the pressure controller is respectively connected to the pressure sensor 113 and the air pump 110, and the pressure controller 113 is configured to receive the pressure information transmitted by the pressure sensor and control the operation of the air pump according to the pressure information.
In one embodiment, the variable pressure ambient air monitor further comprises a gas temperature control system, the gas temperature control system being disposed outside the gas source; the gas temperature control system is used for changing the temperature of the pressure gas in the gas source. For example, the gas temperature control system is a heating device, and a heating source of the heating device is directly arranged on the outside of the gas source, so that heat is transferred to the gas source, the temperature of the gas in the gas source is increased, and when the gas enters the second cavity, the temperature of the second cavity can be adjusted. It will be appreciated that the gas temperature control system may also be a cooling device, for example an air conditioner-like cooling or warming device.
In practical application, the temperature affects the accuracy of the electrochemical sensor, so that the temperature of the gas is adjusted, and the gas directly acts on the second cavity, so that the temperature of the second cavity can be adjusted, and the electrochemical sensor can be more accurate.
In this embodiment, the variable pressure environment air monitor further comprises a heat shield 106, wherein the heat shield 106 is disposed in the first cavity 103 and adjacent to the separation plate 102. In this way, the first chamber can be prevented from being affected by a temperature change of the second chamber.
In one embodiment, the gas temperature control system comprises a housing, a heat-conducting liquid and a heating device, wherein the housing at least partially encloses the gas source, the housing comprises an inner wall and an outer wall, and a cavity is arranged between the inner wall and the outer wall; the heat-conducting liquid is arranged in the cavity; the heating device is used for heating the heat-conducting liquid.
By adopting the mode, the gas source can be directly heated, and the temperature of the gas in the gas source can reach the preset temperature.
In this embodiment, the gas source includes a housing made of a thermally conductive metal. For example, aluminum alloys, and the like.
In this embodiment, a wind-proof block 115 is disposed at a position of the second cavity 104 adjacent to the air inlet. The wind break 115 is used to redirect the gas entering the second chamber 104. By providing the wind-proof block 115, it is possible to prevent the gas in the second cavity 104 from directly blowing up the electrochemical sensor, which affects the accuracy of the electrochemical sensor.
In this embodiment, the air monitor with variable pressure environment further includes a particle sensor 107 and a temperature and humidity sensor 108, and the particle sensor 107 and the temperature and humidity sensor 108 are disposed in the first cavity.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A variable pressure environment air monitor, comprising:
the air monitor comprises an air monitor shell (101), wherein a cavity is formed in the air monitor shell (101);
the separation plate (102) is arranged in the air monitor shell (101) and divides the cavity into a first cavity (103) and a second cavity (104);
an electrochemical sensor (105), the electrochemical sensor (105) being disposed within the second cavity (104);
the pressure control system comprises an output end, and the output end extends into the second cavity; wherein the content of the first and second substances,
a pressure control system is used to provide gas to the second chamber to regulate the pressure within the second chamber.
2. A variable pressure ambient air monitor according to claim 1, wherein the variable pressure ambient air monitor pressure control system comprises:
a gas source (109), the gas source (109) having a gas stored therein;
an air pump (110), wherein the air pump (110) is connected with the air source;
one end of the gas pipeline (111) is connected with the gas pump (110), and the other end of the gas pipeline (111) is the output end; wherein the content of the first and second substances,
the air pump is used for supplying air in the air source to the second cavity.
3. The air monitor of claim 2, wherein the air monitor housing is provided with an air outlet, the air outlet being in communication with the second chamber;
the pressure control system further comprises a pressure relief valve (112), and the pressure relief valve (112) is arranged at the air outlet; wherein the content of the first and second substances,
the pressure release valve is used for opening when the pressure in the second cavity reaches a threshold value, so that the pressure is released for the second cavity.
4. The variable pressure ambient air monitor of claim 3, wherein the pressure control system further comprises a pressure sensor (113), the pressure sensor (113) being disposed within the second cavity.
5. The air monitor as claimed in claim 4, wherein the pressure control system further comprises a pressure controller, the pressure controller is connected to the pressure sensor (113) and the air pump (110), and the pressure controller is configured to receive the pressure information from the pressure sensor and control the air pump to operate according to the pressure information.
6. The variable pressure ambient air monitor of claim 5, further comprising:
the gas temperature control system is arranged outside the gas source;
the gas temperature control system is used for changing the temperature of the pressure gas in the gas source.
7. A variable pressure ambient air monitor according to claim 6, further comprising a heat shield (106), the heat shield (106) being disposed within the first cavity (103) and adjacent to the divider plate (102).
8. The variable pressure ambient air monitor of claim 7, wherein the gas temperature control system comprises:
a housing at least partially enclosing the gas source, the housing comprising an inner wall and an outer wall with a cavity therebetween;
a thermally conductive liquid disposed within the cavity;
and the heating device is used for heating the heat-conducting liquid.
9. The variable pressure ambient air monitor of claim 8, wherein the air supply comprises a housing made of a thermally conductive metal.
10. The air monitor of claim 9, wherein a wind barrier (115) is disposed in the second chamber adjacent to the air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920800041.7U CN210665591U (en) | 2019-05-30 | 2019-05-30 | Air monitor with variable pressure environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920800041.7U CN210665591U (en) | 2019-05-30 | 2019-05-30 | Air monitor with variable pressure environment |
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| Publication Number | Publication Date |
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| CN210665591U true CN210665591U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920800041.7U Active CN210665591U (en) | 2019-05-30 | 2019-05-30 | Air monitor with variable pressure environment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019116A (en) * | 2022-01-10 | 2022-02-08 | 云图启迪(南京)科技有限公司 | Gas monitoring devices is pressed in controllable control by temperature change |
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2019
- 2019-05-30 CN CN201920800041.7U patent/CN210665591U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019116A (en) * | 2022-01-10 | 2022-02-08 | 云图启迪(南京)科技有限公司 | Gas monitoring devices is pressed in controllable control by temperature change |
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