CN220188472U - Device for measuring concentration under low air pressure condition - Google Patents
Device for measuring concentration under low air pressure condition Download PDFInfo
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- CN220188472U CN220188472U CN202321455495.8U CN202321455495U CN220188472U CN 220188472 U CN220188472 U CN 220188472U CN 202321455495 U CN202321455495 U CN 202321455495U CN 220188472 U CN220188472 U CN 220188472U
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- cabin
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- 238000005259 measurement Methods 0.000 claims abstract description 18
- 238000000605 extraction Methods 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 238000012544 monitoring process Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 5
- 239000000523 sample Substances 0.000 claims description 4
- 108010066114 cabin-2 Proteins 0.000 description 25
- 108010066057 cabin-1 Proteins 0.000 description 9
- 238000005457 optimization Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model discloses a device for measuring concentration under a low-pressure condition, which comprises a low-pressure cabin, a measuring cabin, a one-way exhaust component, a gas concentration measuring sensor and a control element, wherein the measuring cabin is provided with a first air inlet and a second air outlet; the low-pressure cabin is communicated with the measuring cabin through an air extraction component; the unidirectional exhaust assembly is mounted on the measurement cabin; the gas concentration measuring sensor is arranged on the measuring cabin, and the detection end of the gas concentration measuring sensor extends into the inner cavity of the measuring cabin; the control element is mounted on the measuring chamber; and the low-pressure cabin and the measuring cabin are respectively provided with a pressure gauge, and the pressure gauge, the air extraction assembly, the one-way exhaust assembly and the gas concentration measuring sensor are electrically connected with the control element. The utility model has simple structure and convenient operation; the accuracy of the gas detection result can be effectively improved.
Description
Technical Field
The utility model relates to the technical field of concentration measuring equipment, in particular to a device for measuring concentration under the condition of low air pressure.
Background
Use of currently mainstream gas concentration sensors or transmittersThe pressure of the detected environment is strictly limited, and is about the normal atmospheric pressure. But in many experimental cabins simulating low pressure environments, the detection of O is carried out 2 、CO 2 And the accuracy of the detection result obtained by directly adopting the traditional gas sensor is poor due to the requirement of the concentration of the gas.
For this purpose, a device for measuring concentration under low-pressure conditions is proposed.
Disclosure of Invention
The utility model aims to provide a device for measuring concentration under the condition of low air pressure, which aims to solve or improve at least one of the technical problems.
In order to achieve the above object, the present utility model provides the following solutions: the utility model provides a device for measuring concentration under low pressure condition, comprising:
a low pressure compartment;
the low-pressure cabin is communicated with the measuring cabin through an air extraction assembly;
a one-way exhaust assembly mounted on the measurement chamber;
a gas concentration measurement sensor mounted on the measurement chamber with a detection end of the gas concentration measurement sensor extending into the measurement chamber interior;
a control element mounted on the measurement chamber;
and the low-pressure cabin and the measuring cabin are respectively provided with a pressure gauge, and the pressure gauge, the air extraction assembly, the one-way exhaust assembly and the gas concentration measuring sensor are electrically connected with the control element.
According to the present utility model there is provided an apparatus for measuring concentration under low pressure conditions, the pumping assembly comprising:
the two ends of the communicating pipe are fixedly connected with the low-pressure cabin and the measuring cabin respectively, and the inner cavity of the measuring cabin is communicated with the inner cavity of the low-pressure cabin through the communicating pipe;
the air pump is arranged on the communicating pipe and is electrically connected with the control element;
the first check valve is arranged on the communicating pipe.
According to the present utility model there is provided an apparatus for measuring concentration under low pressure conditions, the one-way exhaust assembly comprising:
the first exhaust pipe is fixedly arranged on the measuring cabin and is communicated with the inner cavity of the measuring cabin;
a first electromagnetic valve mounted on the first exhaust pipe; the first electromagnetic valve is electrically connected with the control element;
and the second one-way valve is arranged on the first exhaust pipe.
According to the device for measuring the concentration under the low-pressure condition, the second exhaust pipe is arranged on the low-pressure cabin and is communicated with the inner cavity of the low-pressure cabin, and the second electromagnetic valve and the third one-way valve are arranged on the second exhaust pipe; the second electromagnetic valve is electrically connected with the control element.
According to the device for measuring the concentration under the low-pressure condition, provided by the utility model, the bottoms of the low-pressure cabin and the measuring cabin are respectively provided with the base, and the bottoms of the bases are provided with the supporting legs.
According to the device for measuring the concentration under the low-pressure condition, the gas concentration measuring sensor comprises a monitoring body and a detecting head, wherein the monitoring body is arranged on the outer wall of the measuring cabin, the detecting head is electrically connected with the monitoring body, and the monitoring body is electrically connected with the control element; the probe extends into the measurement chamber.
According to the device for measuring the concentration under the low-pressure condition, the sealing gasket is arranged between the detection head and the measuring cabin.
According to the device for measuring the concentration under the low-pressure condition, the control element is a singlechip.
The utility model discloses the following technical effects:
according to the utility model, the gas in the low-pressure cabin is extracted into the measuring cabin through the air extraction component, the gas concentration in the measuring cabin is monitored through the gas concentration measuring sensor, and the gas concentration measuring sensor is fixedly arranged with the measuring cabin, so that the tightness is improved, and the accuracy of gas concentration detection is further improved; the utility model has simple structure and convenient operation, can discharge the gas in the measurement cabin after the measurement is finished through the one-way exhaust component, and improves the use convenience;
according to the utility model, the pressures of the inner cavities of the measuring cabin and the low-pressure cabin are respectively monitored in real time through the two pressure gauges, the pressure output is transmitted to the control element, and the control element regulates and controls the output power of the air extraction assembly according to the pressure value, so that the pressure of the inner cavity of the measuring cabin is regulated, the pressure of the inner cavity of the measuring cabin is higher than the atmospheric pressure, the control of the outside of the measuring cabin is prevented from polluting the gas to be measured, and the accuracy of the gas detection result is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of an apparatus for measuring concentration under low pressure according to the present utility model;
wherein, 1, a low-pressure cabin; 2. a measuring chamber; 3. a gas concentration measurement sensor; 4. a control element; 5. a pressure gauge; 6. a communicating pipe; 7. an air extracting pump; 8. a first one-way valve; 9. a first exhaust pipe; 10. a first electromagnetic valve; 11. a second one-way valve; 12. a second exhaust pipe; 13. a second electromagnetic valve; 14. a third one-way valve; 15. a base; 16. a support leg; 17. and a sealing gasket.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1, the present utility model provides an apparatus for measuring a concentration under a low pressure condition, comprising:
a low pressure compartment 1;
a measuring cabin 2, wherein the low-pressure cabin 1 is communicated with the measuring cabin 2 through an air extraction component;
the unidirectional exhaust assembly is arranged on the measuring cabin 2;
a gas concentration measuring sensor 3, wherein the gas concentration measuring sensor 3 is arranged on the measuring cabin 2, and the detection end of the gas concentration measuring sensor 3 extends into the inner cavity of the measuring cabin 2;
a control element 4, the control element 4 being mounted on the measuring chamber 2;
the low-pressure cabin 1 and the measuring cabin 2 are respectively provided with a pressure gauge 5, and the pressure gauge 5, the air extraction component, the one-way exhaust component and the gas concentration measuring sensor 3 are electrically connected with the control element 4;
the utility model extracts the gas in the low-pressure cabin 1 into the measuring cabin 2 through the air extraction component, monitors the gas concentration in the measuring cabin 2 through the gas concentration measuring sensor 3, and improves the tightness and the accuracy of gas concentration detection by fixedly installing the gas concentration measuring sensor 3 and the measuring cabin 2; the utility model has simple structure and convenient operation, can exhaust the gas in the measuring cabin 2 after the measurement is finished through the one-way exhaust component, and improves the use convenience;
according to the utility model, the pressure in the inner cavity of the measuring cabin 2 and the pressure in the inner cavity of the low-pressure cabin 1 are respectively monitored in real time through the two pressure gauges 5, the pressure output is transmitted to the control element 4, and the control element 4 regulates the output power of the air extraction component according to the pressure value, so that the regulation of the pressure in the inner cavity of the measuring cabin 2 is realized, the pressure in the inner cavity of the measuring cabin 2 is higher than the atmospheric pressure, the control of the outside of the measuring cabin 2 is avoided from polluting the gas to be measured, and the accuracy of the gas detection result is further improved.
Further optimizing scheme, bleed subassembly includes:
the two ends of the communicating pipe 6 are fixedly connected with the low-pressure cabin 1 and the measuring cabin 2 respectively, and the inner cavity of the measuring cabin 2 is communicated with the inner cavity of the low-pressure cabin 1 through the communicating pipe 6;
the air pump 7, the air pump 7 is installed on communicating tube 6, and the air pump 7 is connected with electrical behavior of the control element 4;
a first check valve 8, the first check valve 8 being mounted on the communication pipe 6;
by means of the arrangement, the output power of the air pump 7 is controlled through the control element 4, the air in the low-pressure chamber 1 is pumped into the measuring cabin 2, the unidirectional flow of the air is achieved through the first one-way valve 8, and the measuring accuracy is improved.
Further preferably, the one-way exhaust assembly comprises:
the first exhaust pipe 9 is fixedly arranged on the measuring cabin 2 and is communicated with the inner cavity of the measuring cabin 2;
a first electromagnetic valve 10, the first electromagnetic valve 10 being mounted on the first exhaust pipe 9; the first electromagnetic valve 10 is electrically connected with the control element 4;
a second check valve 11, the second check valve 11 being mounted on the first exhaust pipe 9;
so set up, during the measurement, control element 4 control first solenoid valve 10 closes, seals measuring cabin 2 inner chamber, and control first solenoid valve 10 opens after the measurement finishes, discharges the gas in the measuring cabin 2 along first blast pipe 9, avoids outside air to reverse entering measuring cabin 2 through second check valve 11.
In a further optimization scheme, a second exhaust pipe 12 is arranged on the low-pressure cabin 1, the second exhaust pipe 12 is communicated with the inner cavity of the low-pressure cabin 1, and a second electromagnetic valve 13 and a third one-way valve 14 are arranged on the second exhaust pipe 12; the second electromagnetic valve 13 is electrically connected with the control element 4; the control element 4 controls the opening of the second electromagnetic valve 13 to realize the discharge of the gas in the low-pressure chamber 1, and the third one-way valve 14 prevents the external control from entering the low-pressure chamber 1.
Further optimizing scheme, base 15 is all installed to low pressure cabin 1 and measurement cabin 2 bottom, and landing leg 16 is installed to the bottom of base 15, and anti-skidding gasket is installed to the bottom of landing leg 16, improves the stability that the device was placed.
In a further optimized scheme, the gas concentration measuring sensor 3 comprises a monitoring body and a detecting head, wherein the monitoring body is arranged on the outer wall of the measuring cabin 2, the detecting head is electrically connected with the monitoring body, and the monitoring body is electrically connected with the control element 4; the probe extends into the measuring chamber 2.
Further optimizing scheme installs sealing washer 17 between detecting head and the measurement cabin 2, improves the sealing performance of junction, and then promotes concentration measurement's accuracy.
In a further optimization scheme, the control element 4 is a singlechip, and the control element 4, the gas concentration measuring sensor 3, the pressure gauge 5, the air pump 7, the first electromagnetic valve 10 and the second electromagnetic valve 13 are all powered by an external power supply.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (8)
1. An apparatus for measuring concentration under low pressure conditions, comprising:
a low pressure compartment (1);
a measuring cabin (2), wherein the low-pressure cabin (1) is communicated with the measuring cabin (2) through an air extraction component;
a unidirectional exhaust assembly mounted on the measurement cabin (2);
a gas concentration measuring sensor (3), wherein the gas concentration measuring sensor (3) is arranged on the measuring cabin (2), and a detection end of the gas concentration measuring sensor (3) extends into an inner cavity of the measuring cabin (2);
-a control element (4), said control element (4) being mounted on said measuring chamber (2);
the low-pressure cabin (1) and the measuring cabin (2) are provided with pressure gauges (5), and the pressure gauges (5), the air extraction assembly, the one-way exhaust assembly and the gas concentration measuring sensor (3) are electrically connected with the control element (4).
2. The apparatus for measuring concentration under low pressure conditions according to claim 1, wherein: the air extraction assembly includes:
the two ends of the communicating pipe (6) are fixedly connected with the low-pressure cabin (1) and the measuring cabin (2) respectively, and the inner cavity of the measuring cabin (2) is communicated with the inner cavity of the low-pressure cabin (1) through the communicating pipe (6);
the air pump (7), the said air pump (7) is installed on said communicating tube (6), and the said air pump (7) is connected with said control element (4) electrically;
the first one-way valve (8), the first one-way valve (8) is installed on the communicating pipe (6).
3. The apparatus for measuring concentration under low pressure conditions according to claim 1, wherein: the one-way exhaust assembly includes:
the first exhaust pipe (9) is fixedly arranged on the measuring cabin (2) and is communicated with the inner cavity of the measuring cabin (2);
a first electromagnetic valve (10), the first electromagnetic valve (10) being mounted on the first exhaust pipe (9); the first electromagnetic valve (10) is electrically connected with the control element (4);
-a second non-return valve (11), said second non-return valve (11) being mounted on said first exhaust pipe (9).
4. The apparatus for measuring concentration under low pressure conditions according to claim 1, wherein: a second exhaust pipe (12) is arranged on the low-pressure chamber (1), the second exhaust pipe (12) is communicated with the inner cavity of the low-pressure chamber (1), and a second electromagnetic valve (13) and a third one-way valve (14) are arranged on the second exhaust pipe (12); the second electromagnetic valve (13) is electrically connected with the control element (4).
5. The apparatus for measuring concentration under low pressure conditions according to claim 1, wherein: the low-pressure cabin (1) and the bottom of the measuring cabin (2) are both provided with a base (15), and the bottom of the base (15) is provided with supporting legs (16).
6. The apparatus for measuring concentration under low pressure conditions according to claim 1, wherein: the gas concentration measuring sensor (3) comprises a monitoring body and a detecting head, the monitoring body is arranged on the outer wall of the measuring cabin (2), the detecting head is electrically connected with the monitoring body, and the monitoring body is electrically connected with the control element (4); the probe head protrudes into the measuring chamber (2).
7. The apparatus for measuring concentration under low pressure according to claim 6, wherein: a sealing washer (17) is arranged between the probe and the measuring cabin (2).
8. The apparatus for measuring concentration under low pressure conditions according to claim 1, wherein: the control element (4) is a singlechip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321455495.8U CN220188472U (en) | 2023-06-08 | 2023-06-08 | Device for measuring concentration under low air pressure condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321455495.8U CN220188472U (en) | 2023-06-08 | 2023-06-08 | Device for measuring concentration under low air pressure condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220188472U true CN220188472U (en) | 2023-12-15 |
Family
ID=89113313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321455495.8U Active CN220188472U (en) | 2023-06-08 | 2023-06-08 | Device for measuring concentration under low air pressure condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220188472U (en) |
-
2023
- 2023-06-08 CN CN202321455495.8U patent/CN220188472U/en active Active
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