CN221099843U - Standard meter measuring and identifying device - Google Patents
Standard meter measuring and identifying device Download PDFInfo
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- CN221099843U CN221099843U CN202322359712.XU CN202322359712U CN221099843U CN 221099843 U CN221099843 U CN 221099843U CN 202322359712 U CN202322359712 U CN 202322359712U CN 221099843 U CN221099843 U CN 221099843U
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- 238000005259 measurement Methods 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 25
- 238000012360 testing method Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012031 short term test Methods 0.000 description 1
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Abstract
The utility model discloses a gas meter measuring and identifying device which comprises a vacuum pump, a filter, an air inlet main pipe, a plurality of first air inlet branch pipes and a plurality of second air inlet branch pipes, wherein the filter is arranged on the air inlet main pipe; the identification device is characterized in that a plurality of first air inlet branch pipes and a plurality of second air inlet branch pipes are arranged, a to-be-detected table and a first switch valve are arranged on each first air inlet branch pipe, a reference table and a second switch valve are arranged on each second air inlet branch pipe, then a vacuum pump is arranged to suck air in the first air inlet branch pipes and the second air inlet branch pipes, so that pressure difference is formed in the first air inlet branch pipes and the second air inlet branch pipes, stable air flow is formed, the to-be-detected table and the reference table can be stably penetrated, effective data are formed, the to-be-detected table and the reference table are matched and compared, whether the to-be-detected table is qualified or not is realized, the whole process is simple and practical, the detection process is rapid, and the detection precision is high.
Description
Technical Field
The utility model relates to the technical field of fuel gas, in particular to a standard meter measuring and identifying device.
Background
The gas meter is one of the necessary components in the gas pipe network system, is used for measuring the gas flow, the pressure and the like of the gas pipeline, has a gas interruption protection function, but before the gas meter is installed, the gas meter needs to be measured and identified for ensuring the quality of the gas meter, the existing gas meter measurement usually adopts a mode of inputting pressurized air, wherein the input high-pressure air can have a certain influence on the measurement of the gas meter, the detection precision is not high easily, the detection time is long, and the number of the used reference meters is large. The publication number is CN104198018A, which shows a gas meter detection device, the gas meter detection device comprises a blower, a detection pipeline, a pressure meter and a pressure release mechanism, the pressure meter and the pressure release mechanism are arranged on the detection pipeline, the blower is arranged at the end part of the detection pipeline, the other end of the detection pipeline is connected with the gas meter, the detection pipeline is provided with a main pipeline and two branch pipes connected with the main pipeline, the main pipeline is connected with the blower, the two branch pipes are respectively connected with an air inlet and an air outlet of the gas meter, and the two branch pipes are respectively provided with a control valve. By applying the detection device, the detection device for detecting the gas flow metering of the gas meter is newly provided, and the counting function of the gas meter is detected by adjusting the gas pressure, so that the counting function of the gas meter within a specified pressure range is ensured to meet the detection standard; the counting function of the gas meter can be reversely tested by adopting two branch pipes which are respectively connected with the gas inlet and the gas outlet of the gas meter; the flow meter is increased, and the accuracy of the measurement of the gas meter can be detected. The device adopts the pressurization mode to detect, and the precision is not high.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model aims to provide a practical standard meter measuring and identifying device with high detection precision.
In order to achieve the above purpose, the present utility model provides the following solutions: the standard meter measuring and identifying device comprises a vacuum pump, a filter, an air inlet main pipe, a plurality of first air inlet branch pipes and a plurality of second air inlet branch pipes, wherein the filter is arranged on the air inlet main pipe;
The plurality of first air inlet branch pipes are respectively connected with an air duct, the air duct is connected with a plurality of second air inlet branch pipes, each second air inlet branch pipe is provided with a reference meter and a second switching valve, the second switching valve is positioned at the downstream of the reference meter, the second air inlet branch pipes are respectively connected with an air outlet pipe, and the air outlet pipe is connected with the vacuum pump.
The beneficial effects of the utility model are as follows: realize the short-term test and wait to examine the table, this identification device is through setting up many first air inlet branch pipes, many second air inlet branch pipes, and set up a table and a first ooff valve of waiting to examine on every first air inlet branch pipe, and set up a benchmark table and a second ooff valve on every second air inlet branch pipe, then through setting up the vacuum pump, with the air in sucking first air inlet branch pipe, second air inlet branch pipe, make the pressure differential of formation in first air inlet branch pipe, the second air inlet branch pipe, form stable air current, can pass table and benchmark table of waiting to examine steadily, form effectual data, cooperate comparison table and benchmark table of waiting to examine, realize that negative pressure detection wait to examine whether the table is qualified, whole simple and practical, and the testing process is fast, the detection precision is high.
Further, each first air inlet branch pipe is provided with a third switch valve, and the third switch valves are located at the upstream of the to-be-detected meter. After the structure is adopted, the to-be-detected meter can be detached and replaced by closing the third switch valve and the first switch valve before and after the to-be-detected meter, so that the to-be-detected meter can be replaced without stopping.
Further, a thermometer is arranged on the air outlet pipe. By adopting the structure, the temperature can be detected in real time.
Further, pressure gauges are respectively arranged on the air inlet main pipe and the air outlet pipe. By adopting the structure, the pressure can be detected in real time.
Further, the filter comprises a filter shell and a filter element, wherein an air inlet and an air outlet are formed in the outer side wall of the filter shell, the air outlet is connected with an air inlet main pipe, a filter pipe is arranged in the filter shell, one end of the filter pipe is connected with the air outlet, and the other end of the filter pipe is connected with the filter element. By adopting the structure, the utility model can filter impurities in the air entering the first air inlet branch pipe and the second air inlet branch pipe.
Further, a filter screen is arranged at the air inlet. By adopting the structure, the utility model can filter the air moisture entering the filter.
Further, open filter tube one end has up, this port of filter takes shape and has a limit flange, limit flange is used for placing the filter core, wherein the filter core lateral wall takes shape and has first stopper, limit flange takes shape and has the second stopper, first stopper and the mutual block of second stopper realize fixed filter core. After the structure is adopted, the first limiting block and the second limiting block are staggered by rotating the filter element, so that the filter element can be quickly disassembled and replaced.
Further, the filter further comprises a top cover, an opening is formed in the top of the filter shell, and the top cover is detachably arranged at the opening of the filter. After the structure is adopted, the top cover is arranged, so that the filter element can be replaced later.
Drawings
Fig. 1 is an overall construction diagram of the present utility model.
Fig. 2 is a view showing the internal structure of the filter according to the present utility model.
Fig. 3 is an enlarged view at a in fig. 2.
Fig. 4 is a top view of a filter element of the present utility model.
Wherein, 1 is the vacuum pump, 2 is the filter, 21 is the filtration casing, 211 is the air inlet, 212 is the gas outlet, 22 is the filter core, 211 is first stopper, 23 is the filter tube, 231 is the limit flange, 232 is the second stopper, 24 is the filter screen, 25 is the top cap, 3 is the main air inlet pipe, 41 is first air inlet branch pipe, 42 is second air inlet branch pipe, 43 is the table of waiting to examine, 44 is the reference table, 51 is first ooff valve, 52 is the second ooff valve, 53 is the third ooff valve, 61 is the air duct, 62 is the outlet duct, 71 is the thermometer, 72 is the manometer.
Detailed Description
The following description of the embodiments of the present utility model will be made more complete and less obvious to those skilled in the art, based on the embodiments of the present utility model, for a part, but not all of the embodiments of the present utility model, without making any inventive effort.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 to 4, a standard meter measuring and identifying device comprises a vacuum pump 1, a filter 2, an air inlet main pipe 3, a plurality of first air inlet branch pipes 41 and a plurality of second air inlet branch pipes 42, wherein the filter 2 is arranged on the air inlet main pipe 3, the air inlet main pipe 3 is respectively connected with the plurality of first air inlet branch pipes 41, each first air inlet branch pipe 41 is provided with a meter 43 to be detected and a first switch valve 31, and the first switch valve 31 is positioned at the downstream of the meter 43 to be detected.
The first air inlet branch pipes 41 are respectively connected with an air duct 61, the air duct 61 is connected with the second air inlet branch pipes 42, a reference meter 44 and a second switch valve 32 are arranged on each second air inlet branch pipe 42, the second switch valve 32 is positioned at the downstream of the reference meter 44, the second air inlet branch pipes 42 are respectively connected with an air outlet pipe 62, and the air outlet pipe 62 is connected with the vacuum pump 1.
In the present embodiment, a third switching valve 33 is provided on each of the first intake branch pipes 41, and the third switching valve 33 is located upstream of the table to be inspected 43; the air outlet pipe 62 is provided with a thermometer 71; the air inlet main pipe 3 and the air outlet pipe 62 are respectively provided with a pressure gauge 72.
In the embodiment, the filter 2 comprises a filter shell 21, a filter core 22 and a top cover 25, wherein an air inlet 211 and an air outlet 212 are formed in the outer side wall of the filter shell 21, the air outlet 212 is connected with an air inlet main pipe 3, a filter pipe 23 is arranged in the filter shell 21, one end of the filter pipe 23 is connected with the air outlet 212, and the other end of the filter pipe 23 is connected with the filter core 22; the air inlet 211 is provided with a filter screen 24, and a sponge layer is arranged in the filter screen 24 and is used for absorbing moisture entering the filter 2.
In this embodiment, one end of the filter tube 23 is opened upwards, a limit flange 231 is formed at the end of the filter 2, the limit flange 231 is used for placing the filter element 22, a first limit block 221 is formed on the outer side wall of the filter element 22, a second limit block 232 is formed on the limit flange 231, and the first limit block 221 and the second limit block 232 are blocked mutually to fix the filter element 22.
In this embodiment, the top of the filter housing 21 is provided with an opening, and the top cover 25 is detachably mounted at the opening of the filter 2, wherein the top cover 25 can be detachably fixed by screws.
In this embodiment, the caliber specification is different between the reference tables 44.
In this embodiment, the specific measurement and identification process is: firstly, the first air inlet branch pipes 41 and the to-be-detected tables 43 with the same number and the second air inlet branch pipes 42 and the reference tables 44 with the same number are arranged, wherein the number of the to-be-detected tables 43 can be more than twice the number of the reference tables 44;
Then starting to test, sequentially opening the first switch valve 31 and the third switch valve 33 which correspond to the front and the back of the to-be-detected meter 43 and opening the second switch valve 32 of the reference meter 44 which corresponds to the same caliber specification as the to-be-detected meter 43, and starting the vacuum pump 1 to enable the vacuum pump 1 to suck the outside air into the corresponding first air inlet pipe branch pipe 41 and second air inlet branch pipe 42 through the filter 2, wherein the filter 2 sucks the outside air through the air inlet 211, then filters the moisture in the air through the filter screen 24, filters the impurities in the air through the filter core 22, and finally conveys the air into the air inlet main pipe 3 through the filter pipe 23 and the air outlet 212;
After the vacuum pump 1 sucks the set time, ensuring that the air in the first air inlet pipe branch pipe 41 and the second air inlet pipe branch pipe 42 is dry air, enabling the vacuum pump 1 to suck air from the opened first air inlet pipe branch pipe 41 and second air inlet pipe branch pipe 42, enabling pressure difference to be formed in the first air inlet pipe branch pipe 41 and the second air inlet pipe branch pipe 42 to form stable air flow, enabling the air to stably pass through the to-be-detected table 43 and the reference table 44, forming effective data, and matching the pressure gauge 72 and the thermometer 71 to test the pressure and the temperature of the air outlet pipe 62 until the pressure reaches the set value;
Comparing the corresponding reference table 44 with the table 43 to be inspected, and if the reference table 44 is consistent with the table 43 to be inspected, the table 43 to be inspected is qualified; if the values of the reference table 44 and the table 43 to be checked are inconsistent, the table 43 to be checked is not qualified;
In the process of detecting one to-be-detected table 43, the to-be-detected table 43 to be detected later can be installed in advance, wherein the corresponding to-be-detected table 43 is installed on the corresponding first air inlet branch pipe 41, and the first switch valve 31 and the third switch valve 33 of the first air inlet branch pipe 41 are kept closed; after the last to-be-detected table 43 is detected, the first switch valve 31 and the third switch valve 33 of the first air inlet branch pipe 41 corresponding to the to-be-detected table 43 after the detection is completed are closed, the second switch valve 32 of the corresponding reference table 44 is closed, the first switch valve 31 and the third switch valve 33 of the first air inlet branch pipe 41 corresponding to the next to-be-detected table 43 are opened, the second switch valve 32 of the reference table 44 corresponding to the caliber specification is opened, the next to-be-detected table 43 is detected, and the to-be-detected table 43 is detected without stopping the machine.
When the filter element 22 in the filter 2 needs to be replaced, the top cover 25 is removed, and then the filter element 22 is rotated to make the first limiting block 221 of the filter element 22 and the second limiting block 232 of the limiting flange 231 staggered with each other, at this time, the filter element 22 can be lifted up, and a new filter element 22 can be replaced.
The above-described embodiments are merely preferred embodiments of the present utility model, and are not intended to limit the present utility model in any way. Any person skilled in the art can make many more possible variations and modifications of the technical solution of the present utility model or modify equivalent embodiments without departing from the scope of the technical solution of the present utility model by using the technical content disclosed above. Therefore, all equivalent changes according to the inventive concept are covered by the protection scope of the utility model without departing from the technical scheme of the utility model.
Claims (8)
1. The utility model provides a standard table measures identification device, includes vacuum pump (1), filter (2), air inlet main pipe (3), many first air inlet branch pipe (41), many second air inlet branch pipe (42), its characterized in that: the filter (2) is arranged on the air inlet main pipe (3), the air inlet main pipe (3) is respectively connected with a plurality of first air inlet branch pipes (41), each first air inlet branch pipe (41) is provided with a to-be-detected meter (43) and a first switch valve (31), and the first switch valve (31) is positioned at the downstream of the to-be-detected meter (43);
A plurality of first air inlet branch pipe (41) are connected with air duct (61) respectively, air duct (61) connect many second air inlet branch pipe (42), every all be provided with a benchmark table (44) and a second ooff valve (32) on second air inlet branch pipe (42), second ooff valve (32) are located benchmark table (44) low reaches, second air inlet branch pipe (42) are connected with outlet duct (62) respectively, outlet duct (62) are connected vacuum pump (1).
2. A standard meter measuring and authenticating device as set forth in claim 1, wherein: a third switch valve (33) is arranged on each first air inlet branch pipe (41), and the third switch valve (33) is positioned at the upstream of the to-be-detected meter (43).
3. A standard meter measuring and authenticating device as set forth in claim 2, wherein: a thermometer (71) is arranged on the air outlet pipe (62).
4. A standard meter measuring and authenticating device as set forth in claim 3, wherein: pressure gauges (72) are respectively arranged on the air inlet main pipe (3) and the air outlet pipe (62).
5. The standard meter measurement and identification device of claim 4, wherein: the filter (2) comprises a filter shell (21) and a filter core (22), an air inlet (211) and an air outlet (212) are formed in the outer side wall of the filter shell (21), the air outlet (212) is connected with an air inlet main pipe (3), a filter pipe (23) is arranged in the filter shell (21), one end of the filter pipe (23) is connected with the air outlet (212), and the other end of the filter pipe is connected with the filter core (22).
6. A standard meter measuring and authenticating device as set forth in claim 5, wherein: a filter screen (24) is arranged at the air inlet (211).
7. A standard meter measuring and authenticating device as set forth in claim 6, wherein: the filter is characterized in that one end of the filter tube (23) is provided with an upward direction, the port of the filter (2) is provided with a limiting flange (231), the limiting flange (231) is used for placing the filter element (22), a first limiting block (221) is formed on the outer side wall of the filter element (22), a second limiting block (232) is formed on the limiting flange (231), and the first limiting block (221) and the second limiting block (232) are blocked mutually to fix the filter element (22).
8. A standard meter measuring and authenticating device as set forth in claim 7, wherein: the filter (2) further comprises a top cover (25), an opening is formed in the top of the filter shell (21), and the top cover (25) is detachably arranged at the opening of the filter (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322359712.XU CN221099843U (en) | 2023-08-31 | 2023-08-31 | Standard meter measuring and identifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322359712.XU CN221099843U (en) | 2023-08-31 | 2023-08-31 | Standard meter measuring and identifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221099843U true CN221099843U (en) | 2024-06-07 |
Family
ID=91316930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322359712.XU Active CN221099843U (en) | 2023-08-31 | 2023-08-31 | Standard meter measuring and identifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221099843U (en) |
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2023
- 2023-08-31 CN CN202322359712.XU patent/CN221099843U/en active Active
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