CN219223880U - Real flow calibration device for loop - Google Patents

Real flow calibration device for loop Download PDF

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Publication number
CN219223880U
CN219223880U CN202320028713.3U CN202320028713U CN219223880U CN 219223880 U CN219223880 U CN 219223880U CN 202320028713 U CN202320028713 U CN 202320028713U CN 219223880 U CN219223880 U CN 219223880U
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China
Prior art keywords
pipeline
standard
calibration device
flow
meter
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CN202320028713.3U
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Chinese (zh)
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蒋向军
兰范勇
向勇
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Chengdu Lunci Instrument Co ltd
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Chengdu Lunci Instrument Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

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Abstract

The utility model provides a loop real-flow calibration device, which aims to solve the technical problems that the real-flow calibration station in the prior art has small range for calibrating and calibrating a gas flow instrument, and the requirement of gas company trade metering is difficult to meet. The device comprises: one end of the pipeline is an air inlet end, and the other end of the pipeline is an air outlet end; the inlet end to the outlet end of the pipeline are sequentially provided with: the front part of the standard meter group is provided with a valve; a flow regulating valve; and the to-be-measured meter is detachably arranged on the pipeline. When the device is used for verifying and calibrating the to-be-tested meter, air flow is input from the air inlet end of the pipeline, then the valve is opened, the flow of the air in the pipeline is regulated through the flow regulating valve, and finally the to-be-tested meter and the standard meter group are compared to obtain a result.

Description

Real flow calibration device for loop
Technical Field
The utility model relates to a calibration device of a gas flow meter, in particular to a loop real-flow calibration device.
Background
At present, the market of the actual flow verification of the gas flowmeter in China is obviously in short supply, and the requirements of gas companies or other inspection clients cannot be met.
At present, high-pressure natural gas real-flow verification stations are mastered in a few enterprises, can only verify and calibrate gas flow meters at about 4MPa and 7MPa, cannot meet verification and calibration requirements of gas companies for using a large amount of gas flow meters at 1MPa-4 MPa and higher pressure, bring inconvenience to detection of the gas companies and flowmeters of using customers, bring great difficulty in production, and cannot meet trade metering requirements of the gas companies.
Disclosure of Invention
Aiming at the technical problems that the real-flow verification station in the prior art has small verification and calibration range of the gas flow instrument and is difficult to meet the trade metering requirement of a gas company, the utility model provides the loop real-flow calibration device which has the advantages of verification and calibration of the large-range gas flow instrument.
The technical scheme of the utility model is as follows:
an annular real-flow calibration device, comprising:
one end of the pipeline is an air inlet end, and the other end of the pipeline is an air outlet end;
the inlet end to the outlet end of the pipeline are sequentially provided with:
the front part of the standard meter group is provided with a valve;
a flow regulating valve;
and the to-be-measured meter is detachably arranged on the pipeline.
Optionally, the standard table group includes a plurality of standard tables, each standard table corresponds to a valve, and all the standard tables are connected in parallel to the pipeline.
Optionally, the standard table with several models is provided, and one standard table corresponds to one model.
Optionally, two ends of each standard meter are respectively provided with a valve.
Optionally, all the standard tables are distributed on the pipeline in a matrix.
Alternatively, the different specifications are that the standard tables are arranged in order.
Optionally, an axial flow fan and a heat exchanger are further arranged between the air inlet end of the pipeline and the standard meter group.
Optionally, the air flow passing through the axial flow fan flows from the air inlet end to the air outlet end.
Optionally, the heat exchanger is a cold water thermostatic unit.
Compared with the prior art, the utility model has the beneficial effects that:
and inputting gas into the pipeline through a gas inlet end on the pipeline, enabling the gas to sequentially flow through the standard meter group, the flow regulating valve and the meter to be tested, and finally outputting from a gas outlet end.
When the to-be-measured meter is calibrated, air flow is input from the air inlet end of the pipeline, then the valve is opened, the flow of the air in the pipeline is regulated through the flow regulating valve, and finally the to-be-measured meter and the standard meter group are compared to obtain a result.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of the present utility model.
Reference numerals:
1. an air outlet end; 2. an air inlet end; 3. a heat exchanger; 4. a valve; 5. a branch pipe; 6. a standard table set; 7. a flow regulating valve; 8. a pipe; 9. and (5) measuring a meter.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships conventionally placed in use of the product of the present utility model, or orientations or positional relationships conventionally understood by those skilled in the art, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Example 1:
referring to fig. 1, the loop real-flow calibration device comprises a pipeline 8, a standard meter group 6, a valve 4, a flow regulating valve 7 and a meter to be measured 9. Specific:
the pipeline 8 is annular, and one end of pipeline 8 sets up to be gone into gas end 2, and the other end sets up to be out gas end 1. The air inlet end 2 can be connected with an upstream pipeline 8 or a storage tank, and air is supplied into the pipeline 8 after being decompressed by a decompression device in the air supply recovery system according to the pressure level of the to-be-measured meter 9.
The valve 4, the standard meter group 6, the flow regulating valve 7 and the meter to be measured 9 are sequentially arranged along the air inlet end 2 to the air outlet end 1 of the pipeline 8. Wherein the meter 9 to be measured is detachably mounted on the pipe 8.
The working principle of the embodiment is as follows:
when the to-be-detected meter 9 is calibrated, air flow is input from the air inlet end 2 of the pipeline 8, then the valve 4 is opened, the flow of the air in the pipeline 8 is regulated through the flow regulating valve 7, and finally the to-be-detected meter 9 and the standard meter group 6 are compared to obtain a result.
In this embodiment, the test meter 9 can be calibrated and calibrated according to the accuracy of the standard meter group 6, thereby effectively expanding the calibration and calibration range.
In one particular embodiment:
the standard table group 6 comprises a plurality of standard tables, the specification and the model of each standard table are different, all the standard tables are connected in parallel on the pipeline 8 through a branch pipe 5, and a valve 4 is arranged on the branch pipe 5 corresponding to each standard table. All valves 4 can only be in an open state at the same time.
In one embodiment, all of the criteria tables are connected in parallel in a matrix on the pipeline 8. A plurality of layers of standard tables are arranged from bottom to top, and each layer is provided with at least two standard tables, so that the occupied space of the device is reduced.
In another specific embodiment, in order to avoid the occurrence of the air-crossing phenomenon between different standard meters, two valves 4 are respectively disposed on the branch pipes 5 corresponding to each standard meter, and the two valves 4 are respectively disposed at two ends of the standard meter. In addition, for the convenience of operation, standard tables of different specifications are sequentially arranged, such as pressure of 1MPa-4 MPa and the like from bottom to top.
In this embodiment, the number of standard tables is increased, thereby increasing the range over which the device can be calibrated and calibrated.
Example 2:
on the basis of embodiment 1, the following is included:
an axial flow fan and a heat exchanger 3 are further arranged on the pipeline 8, wherein the axial flow fan and the heat exchanger 3 are sequentially arranged from the air inlet end 2 of the pipeline 8 to the standard meter group 6.
And, pipeline 8 is annular, is provided with a passageway between the income gas end 2 of pipeline 8 and the end of giving vent to anger 1, forms two T shape structures through this passageway in the income gas end 2 of pipeline 8 and the end of giving vent to anger 1 department to, go into gas end 2 and the end of giving vent to anger 1 can both be closed.
Wherein the heat exchanger 3 is a cold water constant temperature unit.
In this embodiment, the axial flow fan provides power for the air flow entering from the air inlet end 2 in the pipeline 8, so that the air flow sequentially passes through the heat exchanger 3, the standard meter group 6, the flow control valve and the meter 9 to be tested.
Then, under the action of the heat exchanger 3, the temperature of the gas is kept in a constant and controllable range through the cold water thermostatic unit, so that the influence of the temperature on the standard meter group 6 and the meter 9 to be tested is avoided.
The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims (9)

1. The utility model provides a real stream calibration device of circuit which characterized in that includes:
one end of the pipeline is an air inlet end, and the other end of the pipeline is an air outlet end;
the inlet end to the outlet end of the pipeline are sequentially provided with:
the front part of the standard meter group is provided with a valve;
a flow regulating valve;
and the to-be-measured meter is detachably arranged on the pipeline.
2. The annular real flow calibration device according to claim 1, wherein,
the standard table group comprises a plurality of standard tables, each standard table corresponds to one valve, and all the standard tables are connected in parallel on the pipeline.
3. The annular real flow calibration device according to claim 2, wherein,
the standard table is provided with a plurality of types, and one standard table corresponds to one type.
4. The annular real flow calibration device according to claim 3, wherein,
and two ends of each standard meter are respectively provided with a valve.
5. The annular real flow calibration device according to claim 3, wherein,
all the standard tables are distributed on the pipeline in a matrix mode.
6. The real flow calibration device of claim 5, wherein,
the standard tables are arranged in sequence.
7. The annular real flow calibration device according to claim 1, wherein,
an axial flow fan and a heat exchanger are further arranged between the air inlet end of the pipeline and the standard meter group.
8. The loop real flow calibration device according to claim 7, wherein,
and the air flow passing through the axial flow fan flows from the air inlet end to the air outlet end.
9. The loop real flow calibration device according to claim 7, wherein,
the heat exchanger is a cold water constant temperature unit.
CN202320028713.3U 2023-01-06 2023-01-06 Real flow calibration device for loop Active CN219223880U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320028713.3U CN219223880U (en) 2023-01-06 2023-01-06 Real flow calibration device for loop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320028713.3U CN219223880U (en) 2023-01-06 2023-01-06 Real flow calibration device for loop

Publications (1)

Publication Number Publication Date
CN219223880U true CN219223880U (en) 2023-06-20

Family

ID=86738128

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320028713.3U Active CN219223880U (en) 2023-01-06 2023-01-06 Real flow calibration device for loop

Country Status (1)

Country Link
CN (1) CN219223880U (en)

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