CN217483634U - Indicating error and leakproofness integrated multi-station gas meter calibrating device - Google Patents
Indicating error and leakproofness integrated multi-station gas meter calibrating device Download PDFInfo
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- CN217483634U CN217483634U CN202220228341.4U CN202220228341U CN217483634U CN 217483634 U CN217483634 U CN 217483634U CN 202220228341 U CN202220228341 U CN 202220228341U CN 217483634 U CN217483634 U CN 217483634U
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Abstract
The utility model discloses a many positions gas table calibrating installation of indicating value error and leakproofness integration includes: the detection platform comprises a first pipeline, a first ball valve and a second ball valve, and the first ball valve and the second ball valve are connected with two ends of the first pipeline; the sealing verification module is connected to the other ends of the first ball valve and the second ball valve through pipelines; and the indication error calibration module is connected to the first pipeline through a pipeline. The utility model discloses many positions gas table calibrating installation of indicating value error and leakproofness integration makes indicating value error and leakproofness test use a verification platform, avoids the secondary clamping to the gas table, realizes that measurement performance (indicating value error), leakproofness detect once accomplishes, under the prerequisite of guaranteeing the examination regulation requirement, has improved detection efficiency greatly, has avoided the repeat labor.
Description
Technical Field
The utility model relates to a gas table examination technical field specifically is a many positions gas table calibrating installation of indicating value error and leakproofness integration.
Background
The verification items of the gas meter mainly comprise appearance, tightness, pressure loss, indication errors and the like, wherein the indication errors are directly related to trade settlement, and the tightness relates to operation safety, so the metering characteristics and the tightness of the gas meter are the most concerned indexes of a gas company and a user. At present, because a medium passed by a household gas meter is generally natural gas and belongs to flammable and explosive products, the most important guarantee of the gas meter is the safety (leakage cannot occur) of the gas meter except for meeting the qualified indication error. The JJG577-2012 diaphragm gas meter verification specification strictly regulates the tightness of the gas meter. However, in the actual verification process, the tightness test device and the indication error verification device are two sets of independent devices, the tightness test and the indication error verification of the gas meter are carried out separately, and for a large number of wide gas meters, the gas meter needs to be verified by twice clamping operation, the gas meter verification efficiency is difficult to meet the market demand, the working strength of testers is increased, time and labor are wasted, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.
In view of the above-mentioned problems, the present invention has been made.
Therefore, the utility model provides a technical problem be: the current tightness test device and indication error calibrating device are two sets of independent devices, and for a large number of wide gas meters, the gas meters need to be calibrated by twice clamping operation, so that the working strength of testers is increased, time and labor are wasted, and the efficiency is low.
In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a show value error and many position gas table calibrating installation of leakproofness integration, includes: the detection platform comprises a first pipeline, a first ball valve and a second ball valve, and the first ball valve and the second ball valve are connected with two ends of the first pipeline;
the sealing verification module is connected to the first pipeline through a pipeline;
and the indication error calibration module is connected with the other ends of the first ball valve and the second ball valve through a pipeline.
As an indication error and many positions gas table calibrating installation of leakproofness integration an preferred scheme, wherein: the first pipeline is provided with at least one standby gas meter.
As an indication error and many positions gas table calibrating installation of leakproofness integration an preferred scheme, wherein: the leakproofness verification module comprises an air compressor, an electromagnetic valve, an air storage tank and a valve assembly, wherein the air compressor, the electromagnetic valve, the air storage tank and the valve assembly are sequentially connected through pipelines.
As an indication error and many positions gas table calibrating installation of leakproofness integration an preferred scheme, wherein: the valve assembly comprises a third valve, an exhaust valve, a fourth valve and a second pressure transmitter, the third valve is connected with the gas storage tank through a pipeline, and the fourth valve is connected with the first pipeline through a pipeline.
As an indication error and many positions gas table calibrating installation of leakproofness integration an optimal selection scheme, wherein: the emptying valve is connected between the third valve and the fourth valve in parallel, and the second pressure transmitter is connected between the fourth valve and the first pipeline in parallel.
As an indication error and many positions gas table calibrating installation of leakproofness integration an preferred scheme, wherein: the indicating value error verification module comprises a filter screen, a left air inlet switching valve component, a right air inlet switching valve component, a stagnation container, a recovery container and a vacuum pump, wherein the filter screen, the left air inlet switching valve component, the right air inlet switching valve component, the stagnation container, the recovery container and the vacuum pump are sequentially connected through pipelines.
As an indication error and many positions gas table calibrating installation of leakproofness integration an preferred scheme, wherein: the left and right air inlet switching valve assembly comprises a first switching valve and a second switching valve which are connected in parallel through a pipeline.
As an indication error and many positions gas table calibrating installation of leakproofness integration an preferred scheme, wherein: the first switching valve is connected to the first ball valve, and the second switching valve is connected to the second ball valve.
As an indication error and many positions gas table calibrating installation of leakproofness integration an preferred scheme, wherein: the stagnation container is provided with a plurality of sonic nozzles.
As an indication error and many positions gas table calibrating installation of leakproofness integration an preferred scheme, wherein: and the stagnation container is also provided with a first pressure transmitter and a temperature device.
The utility model has the advantages that: the utility model discloses many positions gas table calibrating installation of indicating value error and leakproofness integration makes indicating value error and leakproofness test use a verification platform, avoids the secondary clamping to the gas table, realizes that measurement performance (indicating value error), leakproofness detect once accomplishes, under the prerequisite of guaranteeing the examination regulation requirement, has improved detection efficiency greatly, has avoided the repeat labor.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor. Wherein:
fig. 1 is a schematic diagram of an overall module structure of a multi-position gas meter calibration apparatus with integrated indication error and sealing performance according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an overall detailed structure of a multi-position gas meter calibrating apparatus with integrated indicating error and sealing performance according to an embodiment of the present invention;
fig. 3 is a schematic view of an overall operation mode of a multi-station gas meter calibration device with integrated indication error and sealing performance according to an embodiment of the present invention;
fig. 4 is another schematic diagram of the whole operation mode of the multi-station gas meter calibrating apparatus with integrated indication error and sealing performance provided by an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person having ordinary skill in the art without creative efforts shall belong to the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
The present invention will be described in detail with reference to the drawings, and in order to describe the embodiments of the present invention in detail, the cross-sectional view showing the structure of the device will not be enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Meanwhile, in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper, lower, inner and outer" and the like are based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms first, second, or third are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The terms "mounted, connected and connected" in the present application are to be understood broadly, unless otherwise explicitly stated or limited, for example: can be fixedly connected, detachably connected or integrally connected; they may be mechanically, electrically, or directly connected, or indirectly connected through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
Example 1
Referring to fig. 1-2, for an embodiment of the present invention, a multi-station gas meter calibrating apparatus with indication error and sealing integrated is provided, including:
the detection platform 100 comprises a first pipeline 101, a first ball valve 102 and a second ball valve 103, wherein the first ball valve 102 and the second ball valve 103 are connected with two ends of the first pipeline 101;
the indication error calibration module 300 is connected to the other ends of the first ball valve 102 and the second ball valve 103 through pipelines;
and the sealing verification module 200, wherein the sealing verification module 200 is connected to the first pipeline 101 through a pipeline.
Furthermore, the first pipeline 101 is provided with at least one standby gas meter 101a, and the standby gas meters 101a are arranged.
It should be noted that, at least one gas meter to be tested 101a is connected in series to the first pipeline 101, and preferably, 6 or 8 gas meters can be set; the gas meter to be tested 101a is fixed through the existing clamping device.
Further, the tightness verification module 200 includes an air compressor 201, a solenoid valve 202, an air tank 203 and a valve assembly 204, and the air compressor 201, the solenoid valve 202, the air tank 203 and the valve assembly 204 are connected in sequence by pipes.
It should be noted that, the gas flows from the air compressor 201 to the electromagnetic valve 202 to the gas storage tank 203, and the gas storage tank 203 stores the air compressed by the air compressor 201 therein, and then flows to the first pipeline 101 and the gas meter to be tested 101a arranged thereon through the valve assembly 204; the electromagnetic valve 202 is used for controlling the operation of the air compressor 201, when a certain pressure value is reached, the air compressor 201 is automatically closed, and the operation of the air compressor 201 is suspended.
Further, the valve assembly 204 comprises a third valve 204a, an exhaust valve 204b, a fourth valve 204c and a second pressure transmitter 204d, wherein the third valve 204a is connected to the gas tank 203 via a pipe, and the fourth valve 204c is connected to the first pipeline 101 via a pipe.
Furthermore, an exhaust valve 204b is connected in parallel between the third valve 204a and the fourth valve 204c, and a second pressure transmitter 204d is connected in parallel between the fourth valve 204c and the first pipeline 101.
It should be noted that the third valve 204a and the fourth valve 204c are used for controlling gas to enter the first pipeline 101, the evacuation valve 204b is used for pressure relief, and the second pressure transmitter 204d is used for monitoring and displaying a pressure variation value.
When the device is used specifically, firstly, a sealing test is carried out, and the first ball valve 102 and the second ball valve 103 are closed, so that the detection platform 100 and the sealing verification module 200 form a closed loop; the evacuation valve 204b is closed, the third valve 204a and the fourth valve 204c are opened, the air compressor 201 is opened, and after the air compressor 201 compresses the gas, the gas flows into the first pipeline 101 through the third valve 204a and the fourth valve 204c once and then flows into the standby gas meter 101 a. When the pressure in the gas meter to be tested 101a reaches the set pressure, the third valve 204a and the fourth valve 204c are closed, meanwhile, the second pressure transmitter 204d displays the pressure value in real time, after the pressure is stably maintained for 3 minutes, the value of the second pressure transmitter 204d is not reduced, which means that no leakage exists, the sealing performance is qualified, and after the pressure is judged to be qualified, the fourth valve 204c and the exhaust valve 204b are opened to realize pressure relief and exhaust.
Example 2
Referring to fig. 3-4, for another embodiment of the present invention, a multi-station gas meter calibrating apparatus with indication error and sealing integrated is provided, including:
the detection platform 100 comprises a first pipeline 101, a first ball valve 102 and a second ball valve 103, wherein the first ball valve 102 and the second ball valve 103 are connected with two ends of the first pipeline 101;
the indication error calibration module 300 is connected to the other ends of the first ball valve 102 and the second ball valve 103 through pipelines;
and the sealing verification module 200, wherein the sealing verification module 200 is connected to the first pipeline 101 through a pipeline.
Furthermore, the first pipeline 101 is provided with at least one standby gas meter 101a, and the standby gas meters 101a are arranged.
Further, the indication error verification module 300 includes a filter screen 301, left and right air inlet switching valve assemblies 302, a stagnation container 303, a recovery container 304, and a vacuum pump 305, wherein the filter screen 301, the left and right air inlet switching valve assemblies 302, the stagnation container 303, the recovery container 304, and the vacuum pump 305 are sequentially connected through pipes.
The gas flows in the direction of flow, flows into the filter 301 through the gas inlet, flows into the left and right gas inlet switching valve assemblies 302, flows through the backup gas meter 101a, the stagnation container 303, the recovery container 304, and the vacuum pump 305, and is discharged to the atmosphere.
Further, the left and right intake switching valve assembly 302 includes a first switching valve 302a and a second switching valve 302b, and the first switching valve 302a and the second switching valve 302b are connected in parallel by a pipe.
It should be noted that the first switching valve 302a and the second switching valve 302b are used to switch the intake direction, and may be left intake air or right intake air.
Further, the first switching valve 302a is connected to the first ball valve 102, and the second switching valve 302b is connected to the second ball valve 103.
It should be noted that, specifically, the first switching valve 302a is connected to the first ball valve 102 through a pipeline, and the second switching valve 302b is connected to the second ball valve 103 through a pipeline, so as to form a closed loop detection.
Specifically, when the gas meter to be checked 101a is right intake air, the first switching valve 302a performs valve switching, the air flow direction is a dotted arrow in fig. 3, and after passing through the filter screen 301, the air flow passes through the second switching valve 302b, flows to the second ball valve 103, passes through the gas meter to be checked 101a and the first ball valve 102 from the right, passes through the first switching valve 302a, enters the stagnation container 303, and is discharged.
Specifically, when the standby gas meter 101a is left intake air, the second switching valve 302b performs valve switching, and the air flow direction is a solid arrow in fig. 4, passes through the filter screen 301, passes through the first switching valve 302a, flows to the first ball valve 102, passes through the standby gas meter 101a and the second ball valve 103 from the left, passes through the second switching valve 302b, enters the stagnation container 303, and is discharged.
Furthermore, the stagnation container 303 is provided with a plurality of sonic nozzles 303a, and the sonic nozzles 303a are provided.
It should be noted that the gas stream may exit through one or more sonic nozzles 303 a.
Further, a first pressure transmitter 303c and a temperature sensor 303b are provided on the stagnation container 303.
It should be noted that the first pressure transducer 303c and the temperature gauge 303b are used to display the pressure and temperature changes of the stagnation vessel 303.
When the device is used specifically, after the tightness detection is carried out, indication error detection is carried out. The vacuum pump 305 is started, the left and right intake switching valve assembly 302 is opened, and the air in the atmosphere flows through the standby gas meter 101a via the intake port and the left and right intake switching valve assembly 302, then flows through one or more sonic nozzles 303a in the stagnation container 303, passes through the recovery container 304 and the vacuum pump 305, and is discharged to the atmosphere. And meanwhile, the temperature and pressure values of the first pressure transmitter 303c, the temperature sensor 303b and other parts are collected, and the verification result is displayed after the temperature and pressure values are processed by a computer. The tightness test and indication error detection of a plurality of gas meters can be realized through one clamping.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a show value error and many position gas table calibrating installation of leakproofness integration which characterized in that includes:
the detection platform (100) comprises a first pipeline (101), a first ball valve (102) and a second ball valve (103), wherein the first ball valve (102) and the second ball valve (103) are connected with two ends of the first pipeline (101);
the sealing verification module (200), wherein the sealing verification module (200) is connected to the first pipeline (101) through a pipeline;
and the indication error verification module (300) is connected to the other ends of the first ball valve (102) and the second ball valve (103) through pipelines.
2. The calibrating device for the multi-position gas meter integrating indication error and tightness as claimed in claim 1, wherein: and the first pipeline (101) is provided with standby gas meters (101a), and at least one standby gas meter (101a) is arranged.
3. The calibrating device for the multi-position gas meter integrating indication error and tightness as claimed in claim 1 or 2, wherein: the tightness verification module (200) comprises an air compressor (201), an electromagnetic valve (202), an air storage tank (203) and a valve assembly (204), wherein the air compressor (201), the electromagnetic valve (202), the air storage tank (203) and the valve assembly (204) are sequentially connected through pipelines.
4. The calibrating device for the multi-position gas meter integrating indication error and tightness as claimed in claim 3, wherein: the valve assembly (204) comprises a third valve (204a), an exhaust valve (204b), a fourth valve (204c) and a second pressure transmitter (204d), the third valve (204a) is connected with the gas storage tank (203) through a pipeline, and the fourth valve (204c) is connected with the first pipeline (101) through a pipeline.
5. The calibrating apparatus for multi-position gas meter with integrated indication error and tightness as claimed in claim 4, wherein: the evacuation valve (204b) is connected in parallel between the third valve (204a) and a fourth valve (204c), and the second pressure transmitter (204d) is connected in parallel between the fourth valve (204c) and the first pipeline (101).
6. The calibrating device for the multi-position gas meter integrating indication error and tightness as claimed in claim 4 or 5, wherein: the indication error verification module (300) comprises a filter screen (301), a left and right air inlet switching valve assembly (302), a stagnation container (303), a recovery container (304) and a vacuum pump (305), wherein the filter screen (301), the left and right air inlet switching valve assembly (302), the stagnation container (303), the recovery container (304) and the vacuum pump (305) are sequentially connected through pipelines.
7. The calibrating apparatus for a multi-position gas meter integrating indication error and tightness as claimed in claim 6, wherein: the left and right intake switching valve assembly (302) includes a first switching valve (302a) and a second switching valve (302b), and the first switching valve (302a) and the second switching valve (302b) are connected in parallel by a pipe.
8. The calibrating apparatus for a multi-position gas meter integrating indication error and tightness as claimed in claim 7, wherein: the first switching valve (302a) is connected to a first ball valve (102), and the second switching valve (302b) is connected to a second ball valve (103).
9. The calibrating apparatus for a multi-position gas meter integrating indication error and tightness as claimed in claim 7 or 8, wherein: the stagnation container (303) is provided with a plurality of sonic nozzles (303a), and the plurality of sonic nozzles (303a) are arranged.
10. The calibrating apparatus for a multi-position gas meter integrating indication error and tightness as claimed in claim 9, wherein: the stagnation container (303) is also provided with a first pressure transmitter (303c) and a temperature device (303 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202220228341.4U CN217483634U (en) | 2022-01-27 | 2022-01-27 | Indicating error and leakproofness integrated multi-station gas meter calibrating device |
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| CN202220228341.4U CN217483634U (en) | 2022-01-27 | 2022-01-27 | Indicating error and leakproofness integrated multi-station gas meter calibrating device |
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| CN217483634U true CN217483634U (en) | 2022-09-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116242460A (en) * | 2023-05-11 | 2023-06-09 | 莒南县计量测试所 | Error calibrating device for gas meter |
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2022
- 2022-01-27 CN CN202220228341.4U patent/CN217483634U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116242460A (en) * | 2023-05-11 | 2023-06-09 | 莒南县计量测试所 | Error calibrating device for gas meter |
| CN116242460B (en) * | 2023-05-11 | 2023-09-19 | 莒南县计量测试所 | Error calibrating device for gas meter |
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