CN214200487U - Atmospheric pressure meter detecting system - Google Patents
Atmospheric pressure meter detecting system Download PDFInfo
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- CN214200487U CN214200487U CN202120270471.XU CN202120270471U CN214200487U CN 214200487 U CN214200487 U CN 214200487U CN 202120270471 U CN202120270471 U CN 202120270471U CN 214200487 U CN214200487 U CN 214200487U
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- atmospheric pressure
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- barometric pressure
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Abstract
The utility model relates to a detect technical field, disclose an atmospheric pressure meter detecting system, including atmospheric pressure adjusting device, etalon and test room. The air pressure adjusting device is communicated with the standard device and the testing chamber through the tee joint, the air pressure adjusting device is configured to be capable of adjusting air pressure in the testing chamber, the standard device is configured to measure an air pressure value in the testing chamber, the testing chamber can contain the atmospheric pressure meter to be detected, and an indicating value of the atmospheric pressure meter to be detected can be acquired outside the testing chamber. Specifically, the atmospheric pressure adjusting device can be arranged outside the test chamber and adjust the atmospheric pressure in the test chamber, so that during detection, only the atmospheric pressure meter to be detected needs to be placed in the test chamber, and under the setting, the detection precision of the atmospheric pressure meter detection system can be ensured, the complexity of the internal structure of the test chamber can be reduced, the manufacturing cost can be reduced, the later-stage maintenance and maintenance are facilitated, the universality is strong, and the atmospheric pressure adjusting device is economical and practical.
Description
Technical Field
The utility model relates to a detect technical field, especially relate to an atmospheric pressure meter detecting system.
Background
The atmospheric pressure meter is a main instrument for measuring the change of the ambient atmospheric pressure, has the advantages of low price, high precision, good long-term stability and simple degree, and can also be used for measuring the pressure in a container sometimes. However, the barometer needs to be tested after a period of use to determine if it meets the accuracy requirements of the test.
At present, the precision detection of the atmospheric pressure meter mainly depends on a high-low temperature low-pressure test chamber and a high-precision digital barometer. When in detection, firstly, the high-precision digital barometer is communicated with a special port of the high-low temperature low-pressure test chamber through a special air pipe, the detected barometer is placed in an effective working space of the high-low temperature low-pressure test chamber, then the high-low temperature low-pressure test chamber is boosted or reduced in pressure to provide a pressure value required by detection, after the atmospheric pressure value reaches a stable state, the indication value of the high-precision digital barometer is used as a standard value, then the indication value of the detected barometer is read through an observation window of the high-low temperature low-pressure test chamber to be used as a measured value, and then the precision of the detected barometer can be evaluated by adopting the indication value and the measured value. However, the required high low temperature low pressure test chamber purchase cost of present barometer detection is high, and inner structure is complicated various, uses for a long time easily to break down and unable self-maintenance, leads to later maintenance expense higher, and this high low temperature low pressure test chamber still need place in dedicated experimental place in addition, and takes up an area of great, can't remove.
Therefore, there is a need for an atmospheric pressure meter detection system, which has high detection accuracy, reasonable structural layout, strong versatility, economy, practicality and easy maintenance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an atmospheric pressure meter detecting system not only has high detection precision and structural layout reasonable, and the commonality is strong, economical and practical, easily maintenance.
As the conception, the utility model adopts the technical proposal that:
the atmospheric pressure gauge detection system comprises an atmospheric pressure adjusting device, a standard device and a test chamber, wherein the atmospheric pressure adjusting device is communicated with the standard device and the test chamber through a tee joint, the atmospheric pressure adjusting device is configured to adjust the atmospheric pressure in the test chamber, the standard device is configured to measure the atmospheric pressure value in the test chamber, the test chamber can contain the atmospheric pressure gauge to be detected, and the indicating value of the atmospheric pressure gauge to be detected can be acquired outside the test chamber.
Further, the air pressure adjusting device comprises an air pump assembly and a first air pressure adjusting assembly, the first air pressure adjusting assembly can be communicated between the air pump assembly and the tee joint, and the first air pressure adjusting assembly and the air pump assembly are jointly used for conveying air into the test chamber.
Further, the first air pressure adjusting assembly is an adjustable air pressure gauge.
Further, the air pressure adjusting device further comprises a second air pressure adjusting assembly, the second air pressure adjusting assembly and the first air pressure adjusting assembly can be alternatively communicated with the air pump assembly and the tee joint, and the second air pressure adjusting assembly and the air pump assembly are jointly used for extracting air in the test chamber.
Further, the atmospheric pressure gauge detection system still includes first three-phase valve and second three-phase valve, the three port of first three-phase valve connect respectively in air pump subassembly first atmospheric pressure adjusting part with the second atmospheric pressure adjusting part, the three port of second three-phase valve connect respectively in first atmospheric pressure adjusting part second atmospheric pressure adjusting part with the tee bend.
Further, the second air pressure adjusting assembly comprises a silencer and an adjustable vacuum gauge which are communicated through a pipeline, the silencer is communicated with the first three-phase valve, and the adjustable vacuum gauge is communicated with the second three-phase valve.
Further, the gas pump assembly includes a gas pump and a purge separator, the purge separator being in communication between the gas pump and the first three-phase valve, the purge separator being configured to purge gas flowing therethrough.
Further, the test chamber is provided with a transparent observation window.
Further, the inner cavity of the test chamber is cylindrical.
Furthermore, a support frame is arranged in the test chamber and used for supporting the atmospheric pressure gauge to be detected.
The utility model has the advantages that:
the utility model provides an atmospheric pressure meter detecting system includes atmospheric pressure adjusting device, etalon and test chamber, and wherein atmospheric pressure adjusting device communicates in etalon and test chamber through the tee bend, and atmospheric pressure adjusting device is configured to can adjust the atmospheric pressure in the test chamber, and the etalon is configured to the atmospheric pressure value in the measurement test chamber, and the test chamber can the holding wait to detect the atmospheric pressure meter, and the indicating value of waiting to detect the atmospheric pressure meter can be acquireed at the test chamber outside. Specifically, the atmospheric pressure adjusting device can be arranged outside the test chamber and adjust the atmospheric pressure in the test chamber, so that during detection, only the atmospheric pressure meter to be detected needs to be placed in the test chamber, and under the setting, the detection precision of the atmospheric pressure meter detection system can be ensured, the complexity of the internal structure of the test chamber can be reduced, the manufacturing cost can be reduced, the later-stage maintenance and maintenance are facilitated, the universality is strong, and the atmospheric pressure adjusting device is economical and practical.
Drawings
Fig. 1 is a schematic structural diagram of an atmospheric pressure meter detection system provided by an embodiment of the present invention.
In the figure:
1. an air pump assembly; 11. an air pump; 12. a purification separator;
2. a first pneumatic pressure regulating assembly;
3. a second air pressure regulating assembly; 31. a muffler; 32. an adjustable vacuum gauge;
4. a standard device;
5. a test chamber;
6. a first three-phase valve;
7. a second three-phase valve;
8. and a tee joint.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1, the embodiment of the utility model provides an atmospheric pressure meter detecting system, including atmospheric pressure adjusting device, etalon 4 and test chamber 5, atmospheric pressure adjusting device communicates in etalon 4 and test chamber 5 through tee bend 8, and atmospheric pressure adjusting device is configured to the atmospheric pressure that can adjust in test chamber 5, and etalon 4 is configured to the atmospheric pressure value in measuring test chamber 5, and test chamber 5 can hold the atmospheric pressure meter that waits to detect, and the indicating value of the atmospheric pressure meter that waits to detect can be acquireed outside test chamber 5. Specifically, atmospheric pressure adjusting device sets up outside test chamber 5, but can adjust the atmospheric pressure in test chamber 5, consequently only need will wait to detect the atmospheric pressure meter place in test chamber 5 can, the 5 inner structure's of reduction test chamber that can be very big complexity reduces manufacturing cost, makes things convenient for the maintenance in later stage simultaneously, economical and practical.
Further, the air pressure adjusting device comprises an air pump assembly 1 and a first air pressure adjusting assembly 2, the first air pressure adjusting assembly 2 can be communicated between the air pump assembly 1 and the tee joint 8, and the first air pressure adjusting assembly 2 and the air pump assembly 1 are jointly used for conveying air into the test chamber 5. I.e. in the present embodiment by configuring the first air pressure regulating assembly 2 and the air pump assembly 1 to increase the air pressure value in the test chamber 5.
In the present embodiment, the first air pressure adjusting assembly 2 is an adjustable air pressure gauge. Specifically, the adjustable air pressure adjusting gauge is provided with a knob capable of controlling the size of the air flow, and the size of the air flow generated by the air pump assembly 1 and entering the testing chamber 5 through the adjustable air pressure gauge can be controlled by adjusting the opening degree of the knob, so that the air pressure of the testing chamber 5 is adjusted.
Furthermore, the air pressure adjusting device further comprises a second air pressure adjusting assembly 3, the second air pressure adjusting assembly 3 and the first air pressure adjusting assembly 2 can be alternatively communicated with the air pump assembly 1 and the tee joint 8, and the second air pressure adjusting assembly 3 and the air pump assembly 1 are jointly used for extracting air in the test chamber 5. It will be appreciated that the detection of the barometric pressure gauge includes a pressurization detection and a depressurization detection, according to the actual requirements, so correspondingly, the pressure regulating device should be capable of pressurizing or depressurizing the test chamber 5 to meet the detection requirements. Preferably, in the present embodiment, the pressure in the test chamber 5 is 10 to 1200 hpa.
In addition, as shown in fig. 1, the atmospheric pressure meter detection system provided in this embodiment further includes a first three-phase valve 6 and a second three-phase valve 7, three ports of the first three-phase valve 6 are respectively connected to the air pump assembly 1, the first air pressure regulating assembly 2, and the second air pressure regulating assembly 3, and three ports of the second three-phase valve 7 are respectively connected to the first air pressure regulating assembly 2, the second air pressure regulating assembly 3, and the tee joint 8. Specifically, the first pneumatic pressure regulating assembly 2 has a first input port capable of being communicated with the air pump assembly 1 through one port of the first three-phase valve 6 and a first output port capable of being communicated with the tee joint 8 through one port of the second three-phase valve 7. The second air pressure adjusting assembly 3 is provided with a second input port and a second output port, the second input port can be communicated with the air pump assembly 1 through the other port of the first three-phase valve 6, the second output port can be communicated with the tee joint 8 through the other port of the second three-phase valve 7, when the first input port is communicated with the air pump assembly 1, the first output port is communicated with the tee joint 8, and when the second input port is communicated with the air pump assembly 1, the second output port is communicated with the tee joint 8. That is, when the pressure increase detection is performed, the gas flowing out of the air pump assembly 1 can sequentially enter the test chamber 5 through the first input port and the first output port, and when the pressure decrease detection is performed, the gas flowing out of the test chamber 5 can sequentially enter the air pump assembly 1 through the second output port and the second input port.
Specifically, the second air pressure adjusting assembly 3 includes a muffler 31 and an adjustable vacuum gauge 32 which are communicated with each other through a pipeline, the muffler 31 is communicated with the first three-phase valve 6, and the adjustable vacuum gauge 32 is communicated with the second three-phase valve 7. The adjustable vacuum gauge 32 and the air pump assembly 1 are used together to adjust the air pressure in the testing chamber 5, the working principle of the adjustable vacuum gauge is similar to that of the adjustable air pressure gauge, the air pressure in the testing chamber 5 is adjusted by controlling the size of the air flow passing through the adjustable vacuum gauge through the adjusting knob, and the silencer 31 is arranged to reduce the noise generated when the air is discharged from the testing chamber 5. It can be understood that, when the air pump assembly 1 is used to decompress any enclosed space, the air pump assembly 1 will generate a small noise, so in order to improve the use feeling of the barometric pressure measurement system, a muffler 31 is disposed between the air pump assembly 1 and the adjustable vacuum gauge, specifically, one port of the muffler 31 is communicated with one port of the first three-phase valve 6, and the other port of the muffler 31 is communicated with the adjustable vacuum gauge 32. However, when the test chamber 5 is pressurized, the muffler 31 is not necessary in actual circumstances.
Further, the air pump assembly 1 includes an air pump 11 and a purification separator 12, the purification separator 12 is connected between the air pump 11 and the first three-phase valve 6, and the purification separator 12 is used for purifying the air flowing through the purification separator 12. Specifically, the purification separator 12 can perform cleaning, oil-water separation, and the like on the gas flowing through the interior thereof, and in the present embodiment, the purification separator 12 is disposed between the gas pump 11 and the first three-phase valve 6, so that the cleanliness of the gas entering from the gas pump 11 into other components of the barometer detection system can be effectively ensured, and the damage of the unclean gas to the barometer detection system can be reduced, so as to prolong the service life thereof.
Although the adjustable vacuum gauge 32 and the adjustable air pressure gauge also have the function of indicating values, in the embodiment, the adjustable vacuum gauge 32 and the adjustable air pressure gauge are only used as adjusting tools for the air pressure in the testing chamber 5, and the indicating values are also only used as reference values for adjusting the air pressure in the testing chamber 5, and cannot influence the precision of the standard 4.
In particular, in the present embodiment, the standard 4 is preferably a digital barometer, which communicates with the test chamber 5 and the second three-phase valve 7 through a tee 8. According to the working principle of the digital barometer, when the digital barometer is used, the pressure value in the test chamber 5 can be accurately measured only by communicating the measuring end of the digital barometer with the tee joint 8. In other embodiments, the standard 4 may be another pressure gauge with an accuracy one third or more higher than the accuracy of the atmospheric pressure gauge to be detected. Meanwhile, in order to ensure the measurement accuracy, when the atmospheric pressure gauge to be detected is detected, the indication value of the atmospheric pressure gauge to be detected and the indication value of the digital barometer are read after the air pressure in the test chamber 5 reaches the preset range and the air pressure in the test chamber 5 is in a stable state.
Because the atmospheric pressure meter that awaits measuring is placed in test room 5, and in order to guarantee that the indicating value of the atmospheric pressure meter that awaits measuring can be acquireed outside test room 5, test room 5 in this embodiment is equipped with transparent observation window, and operating personnel can read the indicating value of the atmospheric pressure meter that awaits measuring in test room 5 through transparent observation window, need not all the other auxiliary assembly, convenient and fast. In the present embodiment, the transparent observation window is preferably made of transparent glass, but it should be noted that, because the test chamber 5 needs to be pressurized or depressurized during the detection process, the observation window should have a certain pressure-bearing capacity so as to avoid safety accidents caused by the fracture of the observation window during the pressurization or depressurization process. In this embodiment, the viewing window is customized as a double layer of blast resistant glass as desired. The size of the test chamber 5 and the viewing window may also be customized according to actual needs. Therefore, in another embodiment, if the range of the air pressure required for detection is larger, the test chamber 5 can also meet the actual requirement well.
Meanwhile, in order to ensure the accuracy of the indication value of the atmospheric pressure meter to be detected in the test chamber 5, the inner cavity of the test chamber 5 is cylindrical, so that the balance of the air pressure at each position in the test chamber 5 is ensured to the maximum extent.
And further, for avoiding placing because of the atmospheric pressure meter that waits to detect hugs closely 5 inner chamber bottoms of test chamber, influence its measurement to 5 internal gas pressures of test chamber to the detection effect of atmospheric pressure meter that the influence was treated and is detected, be equipped with the support frame in the test chamber 5 that this embodiment provided, the atmospheric pressure meter that waits to detect can place on this support frame.
Specifically, in this embodiment, all adopt the trachea intercommunication between above-mentioned each part, and the quick interface is all adopted in being connected between each part and the trachea to guarantee when arbitrary part damages, all can change rapidly, and each part is independent each other in this atmospheric pressure meter detecting system, and the in service behavior of other parts can not influenced in the change of its part, and is economical convenient. Meanwhile, each component in the atmospheric pressure meter detection system can be independently separated and metered, so that the value tracing is easier.
Finally, it should be noted that the atmospheric pressure gauge detects the specific operation of the system in use.
1) When carrying out the decompression and detecting, the corresponding gas circuit intercommunication does: the air pump 11 → the purification separator 12 → the first three-phase valve 6 (switched to reduced pressure open) → the muffler 31 → the adjustable vacuum gauge 32 → the second three-phase valve 7 (switched to reduced pressure open) → the tee junction 8 → the digital pressure gauge and the test chamber 5, so that the air pressure adjusting device communicates with the digital pressure gauge and the test chamber 5 in terms of the whole air pressure, and at this time, the air pump 11 is set in an air extraction state, and the air pressure value is adjusted by the adjustable vacuum gauge 32. In addition, because the digital barometer as the standard 4 and the testing chamber 5 are communicated with the air pressure adjusting device through a tee joint 8, the adjustable vacuum gauge 32 can roughly adjust the air pressure value in the whole atmospheric pressure gauge detection system, and the numerical value display of the digital barometer and the indicating value of the atmospheric pressure gauge to be detected in the testing chamber 5 are read, so that the atmospheric pressure gauge testing result during pressure reduction can be obtained.
2) When carrying out the pressure boost and detecting, the corresponding gas circuit intercommunication does: the air pump 11 → the purification separator 12 → the first three-phase valve 6 (switched to pressurization open) → the adjustable barometer → the second three-phase valve 7 (switched to pressurization open) → the tee junction 8 → the digital pressure gauge and the test chamber 5, so that the whole air pressure of the air pressure adjusting device, the digital pressure gauge and the test chamber 5 is communicated, at the moment, the air pump 11 is set to be in an air-filling pressurization state, and the air pressure value is adjusted through the adjustable barometer. In addition, because the digital barometer as the standard 4 and the testing chamber 5 are communicated with the air pressure adjusting device through a tee joint 8, the adjustable barometer can roughly adjust the air pressure value in the whole atmospheric barometer detection system, and the numerical value display of the digital barometer and the indicating value of the atmospheric barometer to be detected in the testing chamber 5 are read, so that the atmospheric barometer can be used as the atmospheric barometer testing result during pressurization.
The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An atmospheric pressure meter detection system is characterized by comprising an atmospheric pressure adjusting device, an etalon (4) and a test chamber (5), wherein the atmospheric pressure adjusting device is communicated with the etalon (4) and the test chamber (5) through a tee joint (8), the atmospheric pressure adjusting device is configured to adjust the atmospheric pressure in the test chamber (5), the etalon (4) is configured to measure the atmospheric pressure value in the test chamber (5), the test chamber (5) can accommodate an atmospheric pressure meter to be detected, and the indication value of the atmospheric pressure meter to be detected can be acquired outside the test chamber (5).
2. The barometric pressure detection system according to claim 1, wherein the barometric pressure regulating device comprises an air pump assembly (1) and a first barometric pressure regulating assembly (2), the first barometric pressure regulating assembly (2) is capable of communicating between the air pump assembly (1) and the tee joint (8), and the first barometric pressure regulating assembly (2) and the air pump assembly (1) are used together for delivering air into the test chamber (5).
3. The barometric pressure measurement system according to claim 2, wherein the first barometric pressure regulating component (2) is an adjustable barometer.
4. The barometric pressure measurement system according to claim 2, wherein the barometric pressure regulation device further comprises a second barometric pressure regulation component (3), the second barometric pressure regulation component (3) and the first barometric pressure regulation component (2) can be alternatively communicated with the air pump component (1) and the tee joint (8), and the second barometric pressure regulation component (3) and the air pump component (1) are jointly used for pumping the air in the test chamber (5).
5. The barometric detection system according to claim 4, further comprising a first three-phase valve (6) and a second three-phase valve (7), wherein three ports of the first three-phase valve (6) are connected to the air pump assembly (1), the first barometric component (2), and the second barometric component (3), respectively, and three ports of the second three-phase valve (7) are connected to the first barometric component (2), the second barometric component (3), and the tee joint (8), respectively.
6. The barometric pressure measurement system according to claim 5, wherein the second barometric pressure regulation component (3) comprises a muffler (31) and an adjustable vacuum gauge (32) which are communicated with each other through a pipeline, the muffler (31) is communicated with the first three-phase valve (6), and the adjustable vacuum gauge (32) is communicated with the second three-phase valve (7).
7. The barometric pressure detection system according to claim 5, wherein the gas pump assembly (1) comprises a gas pump (11) and a purge separator (12), the purge separator (12) communicating between the gas pump (11) and the first three-phase valve (6), the purge separator (12) configured to purge gas flowing through the purge separator (12).
8. Barometric pressure measurement according to claim 1, characterized in that the test chamber (5) is provided with a transparent viewing window.
9. Barometric pressure measurement according to claim 1, characterized in that the inner cavity of the test chamber (5) is cylindrical.
10. The barometric pressure measurement system according to claim 1, wherein a support frame is provided in the test chamber (5), and the support frame is used for supporting the barometric pressure to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120270471.XU CN214200487U (en) | 2021-01-29 | 2021-01-29 | Atmospheric pressure meter detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120270471.XU CN214200487U (en) | 2021-01-29 | 2021-01-29 | Atmospheric pressure meter detecting system |
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| Publication Number | Publication Date |
|---|---|
| CN214200487U true CN214200487U (en) | 2021-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120270471.XU Active CN214200487U (en) | 2021-01-29 | 2021-01-29 | Atmospheric pressure meter detecting system |
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| CN (1) | CN214200487U (en) |
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2021
- 2021-01-29 CN CN202120270471.XU patent/CN214200487U/en active Active
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