CN112050911B - Multi-meter simultaneous inspection system and control method thereof - Google Patents
Multi-meter simultaneous inspection system and control method thereof Download PDFInfo
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- CN112050911B CN112050911B CN202010828014.8A CN202010828014A CN112050911B CN 112050911 B CN112050911 B CN 112050911B CN 202010828014 A CN202010828014 A CN 202010828014A CN 112050911 B CN112050911 B CN 112050911B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/15—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters specially adapted for gas meters
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Abstract
本发明涉及一种多表同检系统及其控制方法，多表同检系统包括多个待检表工位以及具有不同流量检测范围的多条检测线，多个待检表工位之间相互并联设置，多条检测线之间相互并联设置，多个待检表工位和多条检测线均与待检表的多个流量检测点一一对应，每条检测线上均设置有标准流量检测装置和流量控制装置，流量控制装置用于控制对应的检测线上的流量检测范围，标准流量检测装置的检测范围与对应的检测线的流量检测范围匹配，每个待检表工位均通过控制阀模组分别与多条检测线连通或断开，通过多条检测线同时检测多个待检表处于不同流量检测点时的性能。本发明的多表同检系统能够同时检测多个待检表处于不同流量检测点时的性能。
The present invention relates to a multi-meter simultaneous inspection system and a control method thereof, wherein the multi-meter simultaneous inspection system comprises a plurality of meter stations to be inspected and a plurality of inspection lines with different flow detection ranges, wherein the plurality of meter stations to be inspected are arranged in parallel with each other, and the plurality of inspection lines are arranged in parallel with each other, and the plurality of meter stations to be inspected and the plurality of inspection lines correspond one-to-one to the plurality of flow detection points of the meter to be inspected, and each inspection line is provided with a standard flow detection device and a flow control device, and the flow control device is used to control the flow detection range on the corresponding inspection line, and the detection range of the standard flow detection device matches the flow detection range of the corresponding inspection line, and each meter station to be inspected is connected or disconnected with the plurality of inspection lines respectively through a control valve module, and the performance of the plurality of meters to be inspected at different flow detection points is detected simultaneously through the plurality of inspection lines. The multi-meter simultaneous inspection system of the present invention can simultaneously detect the performance of the plurality of meters to be inspected at different flow detection points.
Description
Technical Field
The invention relates to the technical field of flowmeters, in particular to a multi-meter co-detection system and a control method thereof.
Background
The existing gas meter detection system and flowmeter detection system are mostly connected with a plurality of meters to be detected or a plurality of flowmeters in series on the same meter detection table in a series mode, so that the purpose of detecting a plurality of meters to be detected or a plurality of flowmeters simultaneously is achieved. However, the existing gas meter detection system and flow meter detection system have the defects in the actual use process:
1) The to-be-detected meter can cause the detection system to form pressure loss in the detection process, and the pressure loss of the detection system can be increased when a plurality of to-be-detected meters are subjected to serial detection, so that the detection system cannot be suitable for a small-flow detection environment;
2) When the airflow in the detection system passes through the front-end to-be-detected meter, pulse and vortex are generated, so that the phenomenon of unstable air inlet of the rear-end to-be-detected meter is caused, and the detection accuracy of the detection system on the rear-end to-be-detected meter is affected;
3) When one or more tables to be checked in the table group to be checked are unqualified, the detection data of the rest tables to be checked are affected.
Disclosure of Invention
The present invention aims to solve at least one of the above technical problems to a certain extent.
The first aspect of the invention provides a multi-meter simultaneous inspection system, which comprises a plurality of meter stations to be inspected and a plurality of detection lines with different flow detection ranges, wherein the meter stations to be inspected are mutually connected in parallel, the detection lines are mutually connected in parallel, the meter stations to be inspected and the detection lines are in one-to-one correspondence with the flow detection points of the meter to be inspected, each detection line is provided with a standard flow detection device and a flow control device, the flow control device is used for controlling the flow detection range of the corresponding detection line, the detection range of the standard flow detection device is matched with the flow detection range of the corresponding detection line, each meter station to be inspected is respectively communicated with or disconnected from the detection lines through a control valve module, and the performance of the meter to be inspected when the multiple meters to be inspected are in the different flow detection points is detected through the detection lines.
According to one embodiment of the invention, the multi-meter co-inspection system comprises a first inspection line and an N-th inspection line which are arranged in parallel, and a first to-be-inspected meter station and an N-th to-be-inspected meter station, wherein the first inspection line is suitable for the environment of a first flow inspection point, the N-th inspection line is suitable for the environment of an N-th flow inspection point, the first to-be-inspected meter station is respectively connected with the first inspection line and the N-th inspection line through a first control valve module, the N-th to-be-inspected meter station is respectively connected with the first inspection line and the N-th inspection line through an N-th control valve module,。
According to one embodiment of the invention, when the multi-meter co-detection system is in a first detection state, the first meter to be detected station is communicated with the first detection line through the first control valve module, the nth meter to be detected station is communicated with the fluid of the nth flow detection point through the nth control valve module, and the nth meter to be detected station is communicated with the nth detection line.
According to one embodiment of the invention, when the multi-meter simultaneous inspection system is in an Nth inspection state, the first meter station to be inspected is communicated with the Nth inspection line through the first control valve module, the Nth meter station to be inspected is communicated with the first inspection line through the Nth control valve module, and the first meter station to be inspected is communicated with the first inspection line through the first control valve module.
According to one embodiment of the present invention, in the case of n=3, the multi-meter co-checking system includes three meter stations to be checked and three detection lines having different flow detection ranges, the three flow detection points to which the three detection lines are applied include a lower flow limit Qmin, a 20% upper flow limit Qmax, and an upper flow limit Qmax of the meter to be checked, respectively, and in the case of n=4, the multi-meter co-checking system includes four meter stations to be checked and four detection lines having different flow detection points, the four flow detection points to which the four detection lines are applied include a lower flow limit Qmin, a 20% upper flow limit Qmax, a 50% upper flow limit Qmax, and an upper flow limit Qmax of the meter to be checked, respectively.
According to one embodiment of the invention, the multi-meter simultaneous inspection system further comprises an air source, wherein the air source is respectively communicated with the plurality of meter stations to be inspected and respectively introduces air into each meter station to be inspected, and the air at each meter station to be inspected flows to a corresponding detection line through the control valve module.
According to one embodiment of the invention, each control valve module comprises N control valves, and the N control valves are respectively connected with the N detection lines one by one.
According to one embodiment of the invention, each meter station to be inspected comprises a reducing sleeve matched with the caliber of the meter to be inspected, and a first pressure transmitter and a first temperature transmitter arranged at two ends of the meter to be inspected.
According to one embodiment of the invention, a second pressure transmitter and a second temperature transmitter are provided at both ends of each standard flow detection device.
The second aspect of the invention also provides a control method of the multi-meter co-checking system, which is executed by the multi-meter co-checking system of the first aspect of the invention, and comprises the steps of determining a plurality of different flow detection points for checking a to-be-checked meter by the multi-meter co-checking system, controlling a plurality of flow control devices on a plurality of detection lines to enable a plurality of flow detection ranges of the plurality of detection lines to correspond to the plurality of different flow detection points, and controlling a plurality of to-be-checked meter stations to be sequentially and alternately communicated with the plurality of detection lines one by one.
The multi-meter simultaneous detection system has the beneficial effects that the aim of simultaneously detecting a plurality of to-be-detected meters can be fulfilled, the aim of detecting the performance of the to-be-detected meters in different flow detection points can be fulfilled, and meanwhile, the interference of the plurality of detection lines on detection data of a plurality of to-be-detected meter stations can be reduced due to the parallel arrangement of the plurality of detection lines. The control method of the multi-meter simultaneous detection system not only can improve the detection efficiency of a plurality of to-be-detected meters, but also can improve the detection range of the to-be-detected meters, improve the detection accuracy of the to-be-detected meters, and can reduce the mutual influence of the to-be-detected meters and improve the stability of the detection process of the to-be-detected meters in the process of simultaneously detecting the to-be-detected meters.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic diagram of a multi-table co-checking system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the multi-table co-detection system of FIG. 1 in a first detection state;
FIG. 3 is a schematic diagram of the multi-table co-detection system of FIG. 1 in a second detection state;
FIG. 4 is a schematic diagram of the multi-table co-detection system of FIG. 1 in a third detection state.
Wherein, the reference numerals are as follows:
100. The device comprises a first detection line, a second detection line, a third detection line and a third detection line, wherein the first detection line is 200;
10. A first pressure transmitter;
21. A first station to be inspected; the second meter waiting station is 22, the third meter waiting station is 23;
30. A first temperature transmitter;
41. First control valve, 42, second control valve, 43, third control valve, 44, fourth control valve, 45, fifth control valve, 46, sixth control valve, 47, seventh control valve, 48, eighth control valve, 49, ninth control valve;
50. a second pressure transmitter;
61. a first standard flow rate detection device; 62, a second standard flow detection device, 63, a third standard flow detection device;
70. A second temperature transmitter;
80. A flow control device.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the multi-meter co-detection system of the present invention may be used for detecting flow meters of petroleum, organic liquid, inorganic liquid, liquefied gas, natural gas and low-temperature fluid, which all belong to the protection scope of the multi-meter co-detection system of the present invention.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" are inclusive and therefore specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "disposed" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, or may be directly connected or indirectly connected via an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first," "second," and "third" may explicitly or implicitly include one or more such features. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
For ease of description, spatially relative terms, such as "upper," "lower," "end," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the mechanism in use or operation in addition to the orientation depicted in the figures. For example, if the mechanism in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below" may include both upper and lower orientations. The mechanism may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.
As shown in fig. 1, the first aspect of the present invention provides a multi-meter co-detection system, the multi-meter co-detection system includes a plurality of stations to be detected (described in detail below) and a plurality of detection lines (described in detail below) having different flow detection ranges, the plurality of stations to be detected are arranged in parallel with each other, the plurality of stations to be detected and the plurality of detection lines are in one-to-one correspondence with a plurality of flow detection points of a meter to be detected, a standard flow detection device (described in detail below) and a flow control device 80 are arranged on each detection line, the flow control device 80 is used for controlling the flow detection range on the corresponding detection line, the flow control device 80 can be a variable frequency fan or a float flowmeter, the purpose of controlling the flow of fluid on the detection line is achieved through the variable frequency fan or the float, the detection range of the standard flow detection device is matched with the flow detection range of the corresponding detection line, each station to be detected is respectively communicated with the plurality of detection lines or disconnected through a control valve module, when the multi-meter co-detection system works, a controller of the multi-meter co-detection system is provided with the plurality of flow detection lines, and the multi-meter co-detection system is enabled to be detected to be simultaneously in turn in correspondence with the flow detection lines to the plurality of detection lines to be detected to the detection lines to be detected and the flow detection lines, and the flow control valve module is enabled to be alternately and the flow detection line to be detected to be connected with the detection lines.
In this embodiment, the multi-meter simultaneous inspection system of the present invention not only can achieve the purpose of simultaneously inspecting a plurality of meters to be inspected, but also can achieve the purpose of inspecting performance of the meters to be inspected when the meters to be inspected are at different flow inspection points, and meanwhile, as a plurality of inspection lines are arranged in parallel, interference of the plurality of inspection lines on inspection data of a plurality of stations of the meters to be inspected can be reduced. Specifically, the number of the stations of the multiple to-be-detected meters and the number of the detection lines are the same as the number of the flow detection points of the multiple to-be-detected meters, the multiple to-be-detected meters and the multiple detection lines are in one-to-one correspondence with the multiple flow detection points of the multiple to-be-detected meters, in the process that the multiple to-be-detected meters and the detection lines work together, one detection line can always be ensured to detect the multiple to-be-detected meters at one station of the multiple to-be-detected meters, the number of the stations of the multiple to-be-detected meters and the number of the multiple detection lines are determined by the number of different flow detection points needed by the multiple to-be-detected meters, specifically, when the number of the multiple flow detection points of the multiple to-be-detected meters is N, the number of the multiple to-be-detected meters and the number of the multiple detection lines are N,For example, when the performance of the meter to be inspected in the lower limit flow Qmin and the upper limit flow Qmax needs to be detected, the performance can be realized only by two meter stations to be inspected and two detection lines, at this time,The two standard flow detection devices on the two detection lines correspond to the lower flow limit amount Qmin and the upper flow limit amount Qmax of the to-be-detected meter respectively, when the performance of the to-be-detected meter in the lower flow limit amount Qmin, the upper flow limit amount Qmax and the 20% upper flow limit amount Qmax needs to be detected, the detection can be realized only by three stations of the to-be-detected meter and three detection lines,The three standard flow detection devices on the three detection lines respectively correspond to the lower current limit amount Qmin, the upper current limit amount Qmax and the 20% upper current limit amount Qmax of the to-be-detected meter, when the performance of the to-be-detected meter in the lower current limit amount Qmin, the upper current limit amount Qmax, the 20% upper current limit amount Qmax and the 50% upper current limit amount Qmax is required to be detected, the three standard flow detection devices can be realized only by four stations of the to-be-detected meter and four detection lines,The four standard flow detection devices on the four detection lines respectively correspond to a lower flow limit value Qmin, an upper flow limit value Qmax, a 20% upper flow limit value Qmax and a 50% upper flow limit value Qmax of the to-be-detected meter. Furthermore, the flow rate range of the standard flow rate detection device and the effective verification flow rate range of each detection line cover the flow rate of most types and calibers of to-be-detected meters at the flow rate detection point, so that the applicability of the standard flow rate detection device and each detection line to different types of to-be-detected meters is improved, and the standard flow rate detection device can be a turbine flowmeter or a Roots flowmeter.
It should be noted that, the detection mode of each detection line to-be-detected table is to sequentially introduce air flow into the to-be-detected table and the standard flow detection device, then compare the air flow detected by the to-be-detected table with the air flow detected by the standard flow detection device, and determine the performance of the to-be-detected table according to the difference value between the air flow detected by the to-be-detected table and the air flow detected by the standard flow detection device, for example, whether the to-be-detected table has blocking damage phenomenon or not. Specifically, the multi-meter simultaneous detection system is used for introducing air flow to the meter to be detected through an air source, the air source is respectively communicated with a plurality of meter stations to be detected and is used for introducing air to each meter station to be detected, the air at each meter station to be detected flows to a corresponding detection line through a control valve module, each control valve module comprises a plurality of control valves, and the control valves are respectively connected with the detection lines one by one. Further, each station of the to-be-detected meter comprises a reducing sleeve matched with the caliber of the to-be-detected meter, a first pressure transmitter 10 and a first temperature transmitter 30 which are arranged at two ends of the to-be-detected meter, a second pressure transmitter 50 and a second temperature transmitter 70 are arranged at two ends of each standard flow detection device, the reducing sleeve can be suitable for the to-be-detected meters with different calibers, so that the applicability of the station of the to-be-detected meter to different to-be-detected meters is improved, the first pressure transmitter 10 and the second temperature transmitter 30 which are arranged at two ends of the to-be-detected meter can collect temperature and pressure of gas flowing to the to-be-detected meter, the second pressure transmitter 50 and the second temperature transmitter 70 which are arranged at two ends of the standard flow detection device can collect temperature and pressure of gas flowing to the standard flow detection device, and the acquired data are calculated to correct the actual flow of the to-be-detected meter and the standard flow detection device, the temperature and the air pressure in the standard flow detection device are improved, and the temperature and air pressure consistency in the standard flow detection device are improved.
Below toWhen the multi-meter co-checking system detects that the to-be-checked meter is in the performance of the lower current limit amount Qmin, the upper current limit amount Qmax and 20% Qmax, the multi-meter co-checking system of the embodiment of the invention is illustrated as an example.
With continued reference to fig. 1, according to one embodiment of the present invention, when the multi-meter co-checking system detects that the meter to be checked is in the performance of the lower flow limit Qmin, the upper flow limit Qmax and the 20% Qmax, the multi-meter co-checking system includes a first detection line 100, a second detection line 200 and a third detection line 300 which are disposed in parallel, and a first meter to be checked station 21, a second meter to be checked station 22 and a third meter to be checked station 23, the first detection line 100 is suitable for the environment of the first flow rate detection range, the second detection line 200 is suitable for the environment of the second flow rate detection range, the third detection line 300 is suitable for the environment of the third flow rate detection range, the first meter to be checked station 21 is connected with the three detection lines respectively through the first control valve module, the second meter to be checked station 22 is connected with the three detection lines respectively through the second control valve module, the third meter to be checked station 23 is connected with the three detection lines respectively through the third control valve module, each control valve module includes three control valves, and the three control valves are connected with the three detection lines respectively.
The multi-meter simultaneous detection system implements three detection states through the first detection line 100, the second detection line 200 and the third detection line 300, wherein the three detection states comprise a first detection state, a performance when the meter to be detected at the first meter to be detected station 21 is at the lower limit flow Qmin, a performance when the meter to be detected at the second meter to be detected station 22 is at the upper limit flow Qmin of 20%, a performance when the meter to be detected at the third meter to be detected station 23 is at the upper limit flow Qmin, a second detection state, a performance when the meter to be detected at the first meter to be detected station 21 is at the upper limit flow Qmin, a performance when the meter to be detected at the second meter to be detected station 22 is at the upper limit flow Qmin, a performance when the meter to be detected at the third meter to be detected station 22 is at the lower limit flow Qmin, and a performance when the meter to be detected at the third meter to be detected station 23 is at the upper limit flow Qmin, and a performance when the meter to be detected at the third meter to be detected at the station 23 is at the upper limit flow Qmin of 20%.
Under the condition that the multi-meter co-detection system is in a first detection state, as shown in fig. 2, the first meter to be detected 21 is filled with fluid at a first flow detection point, the first meter to be detected 21 is communicated with the first detection line 100 through a first control valve module, specifically, the first control valve module comprises a first control valve 41, a second control valve 42 and a third control valve 43, the second control valve 42 and the third control valve 43 are closed, the third meter to be detected 21 is communicated with a first standard flow detection device 61 on the first detection line 100 through the first control valve 41, the second meter to be detected 22 is filled with fluid at a second flow detection point, the second meter to be detected 22 is communicated with the second detection line 200 through a second control valve module, specifically, the third control valve module comprises a fourth control valve 44, a fifth control valve 45 and a sixth control valve 46, the fifth meter to be detected 45 is closed with a second standard flow detection device 62 on the second detection line 200 through the fourth control valve 44, the third meter to be detected 22 is communicated with a third standard flow detection point 23 on the third detection line 300 through the third control valve 45, the third meter to be detected 23 is communicated with the eighth detection point through the third control valve 48, and the third meter to be detected 48 is communicated with the eighth detection point through the third control valve module 48, and the third standard flow detection point is communicated with the third detection point through the third control valve 45 and the eighth detection point is communicated with the third detection point through the third control valve 45.
In the case that the multi-meter co-checking system is in the second checking state, as shown in fig. 3, the first meter to be checked 21 is put into the fluid at the second flow checking point, the first meter to be checked 21 is put into communication with the second checking line 200 through the first control valve module, specifically, the first control valve 41 and the third control valve 43 are closed, the first meter to be checked 21 is put into communication with the second standard flow checking device 62 on the second checking line 200 through the second control valve 42, the second meter to be checked 22 is put into the fluid at the third flow checking point, the second meter to be checked 22 is put into communication with the third checking line 300 through the second control valve module, specifically, the fifth control valve 45 and the fourth control valve 44 are closed, the second meter to be checked 22 is put into communication with the third standard flow checking device 63 on the third checking line 300 through the sixth control valve 46, the third meter to be checked 23 is put into the fluid at the first checking line 100 through the third control valve module, specifically, the seventh control valve 47 and the ninth control valve 49 is put into communication with the first standard flow checking line 61 on the eighth meter to be checked 23.
In the case that the multi-meter co-inspection system is in the third inspection state, as shown in fig. 4, the first meter to be inspected 21 is in fluid communication with the third inspection line 300 through the first control valve module, specifically, the first control valve 41 and the second control valve 42 are closed, the first meter to be inspected 21 is in fluid communication with the third standard flow detection device 63 on the third inspection line 300 through the third control valve 43, the second meter to be inspected 22 is in fluid communication with the first inspection line 100 through the second control valve module, specifically, the fourth control valve 44 and the sixth control valve 46 are closed, the second meter to be inspected 22 is in fluid communication with the first standard flow detection device 61 on the first inspection line 100 through the fifth control valve 45, the third meter to be inspected 23 is in fluid communication with the second inspection line 200 through the third control valve module, specifically, the seventh control valve 47 and the eighth control valve 48 are closed, and the third meter to be inspected 23 is in fluid communication with the third standard flow detection device 200 on the ninth inspection line 200 through the third control valve module 45.
The second aspect of the present invention also provides a control method of the multi-table co-checking system, where the control method of the multi-table co-checking system is implemented by the multi-table co-checking system according to the first aspect of the present invention, and the control method of the multi-table co-checking system includes determining a plurality of different flow detection points for checking a to-be-checked table by the multi-table co-checking system, controlling outputs of a plurality of flow control devices 80 on a plurality of check lines so that a plurality of flow detection ranges of the plurality of check lines correspond to the plurality of different flow detection points, and controlling stations of the to-be-checked table to be sequentially and alternately communicated with the plurality of check lines one by one.
In this embodiment, the control method of the multi-table simultaneous detection system of the present invention not only can improve the detection efficiency of the multiple tables to be detected, but also can improve the detection range of the tables to be detected, improve the detection accuracy of the tables to be detected, and can also reduce the mutual influence between the multiple tables to be detected and improve the stability of the detection process of the multiple tables to be detected in the process of simultaneously detecting the multiple tables to be detected.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The multi-meter simultaneous detection system is characterized by comprising a plurality of meter stations to be detected and a plurality of detection lines with different flow detection ranges, wherein the meter stations to be detected are mutually connected in parallel, the detection lines are mutually connected in parallel, the meter stations to be detected and the detection lines are in one-to-one correspondence with the flow detection points of the meter to be detected, each detection line is provided with a standard flow detection device and a flow control device, the flow control device is used for controlling the flow detection range of the corresponding detection line, the detection range of the standard flow detection device is matched with the flow detection range of the corresponding detection line, each meter station to be detected is respectively communicated with or disconnected from the detection lines through a control valve module, and the performance of the meter to be detected when the multiple meters to be detected are in the different flow detection points is detected through the detection lines.
2. The multi-meter co-inspection system according to claim 1, comprising a first inspection line and an nth inspection line arranged in parallel, and a first inspection station and an nth inspection station, the first inspection line being adapted to an environment of a first flow inspection point, the nth inspection line being adapted to an environment of an nth flow inspection point, the first inspection station being respectively connected to the first inspection line and the nth inspection line through a first control valve module, the nth inspection station being respectively connected to the first inspection line and the nth inspection line through an nth control valve module, wherein,。
3. The multi-meter co-checking system according to claim 2, wherein, in a case that the multi-meter co-checking system is in a first detection state, the first meter station to be checked is communicated with the first detection line through the first control valve module, the nth meter station to be checked is communicated with the fluid of the nth flow detection point through the nth control valve module.
4. The multi-meter co-checking system according to claim 2, wherein, in a case that the multi-meter co-checking system is in an nth detection state, the first meter station to be checked is communicated with the nth detection line through the first control valve module, the nth meter station to be checked is communicated with the first detection line through the nth control valve module.
5. The multi-meter co-checking system according to claim 2, wherein in case of n=3, the multi-meter co-checking system comprises three meter stations to be checked and three detection lines having different flow detection ranges, the three flow detection points to which the three detection lines are applied respectively comprise a lower flow limit Qmin, a 20% upper flow limit Qmax and an upper flow limit Qmax of the meter to be checked, and in case of n=4, the multi-meter co-checking system comprises four meter stations to be checked and four detection lines having different flow detection points, the four flow detection points to which the four detection lines are applied respectively comprise a lower flow limit Qmin, a 20% upper flow limit Qmax, a 50% upper flow limit Qmax and an upper flow limit Qmax of the meter to be checked.
6. The multi-meter co-checking system according to claim 1, further comprising a gas source, wherein the gas source is respectively communicated with the plurality of meter stations to be checked and respectively introduces gas into each meter station to be checked, and the gas at each meter station to be checked flows to a corresponding detection line through the control valve module.
7. The multi-meter co-detection system of claim 2, wherein each control valve module comprises N control valves, the N control valves being respectively in one-to-one connection with the N detection lines.
8. The multi-meter co-checking system according to claim 1, wherein each meter station to be checked comprises a reducing sleeve matched with the caliber of the meter to be checked, and a first pressure transmitter and a first temperature transmitter arranged at two ends of the meter to be checked.
9. The multi-meter co-detection system of claim 1, wherein a second pressure transmitter and a second temperature transmitter are provided at both ends of each of the standard flow detection devices.
10. A control method of a multi-table co-checking system, characterized in that the control method of the multi-table co-checking system is performed by the multi-table co-checking system according to any one of claims 1 to 9, the control method of the multi-table co-checking system comprising:
determining a plurality of different flow detection points for detecting the to-be-detected table by the multi-table concurrent detection system;
controlling the output of a plurality of flow control devices on the plurality of detection lines so that a plurality of flow detection ranges of the plurality of detection lines correspond to the plurality of different flow detection points;
And controlling the plurality of meter stations to be checked to be communicated with the plurality of detection lines alternately one by one.
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