CN209979033U - High-efficiency gas flow standard device capable of simultaneously detecting multiple flowmeters - Google Patents
High-efficiency gas flow standard device capable of simultaneously detecting multiple flowmeters Download PDFInfo
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- CN209979033U CN209979033U CN201921179448.9U CN201921179448U CN209979033U CN 209979033 U CN209979033 U CN 209979033U CN 201921179448 U CN201921179448 U CN 201921179448U CN 209979033 U CN209979033 U CN 209979033U
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Abstract
The utility model relates to the technical field of gas flow verification, in particular to a high-efficiency gas flow standard device capable of simultaneously verifying a plurality of flowmeters, which comprises a verification platform component, a standard device component, a power system, a signal acquisition and control system and a verification software system, and can simultaneously verify a plurality of flowmeters, thereby effectively improving the efficiency; the device has compact structure and small occupied space; the design of a plurality of stagnation containers is adopted, and the stagnation containers are installed in parallel, so that the miniaturization of the device and the rapidness and stability after the flow is switched are realized; a honeycomb rectifier is arranged between the flowmeters, so that the interference of pulse, vortex and the like generated when a medium passes through the flowmeters is eliminated, and the stability of the medium flow state between the flowmeters is ensured; each detected flowmeter is provided with an independent pressure transmitter and a pulse time counter channel, so that signal crosstalk among flowmeters is eliminated, and the truth and reliability of data are ensured; the device is arranged in a modularized manner, and convenience is brought to maintenance, fault judgment and repair.
Description
Technical Field
The utility model relates to a gas flow examination technical field specifically is a can examine and determine high-efficient gas flow standard device of many flowmeters simultaneously.
Background
With the rapid increase of natural gas production and sales and users, the number of natural gas metering appliances is increased dramatically. The natural gas flow meters must perform mandatory periodic certification, and therefore, there is a strong real need for advanced flow meter certification standards.
The existing gas flow standard device can only detect one flowmeter at a time, and because the standard component adopts a structure of a multi-standard-device single stagnation container (namely, all the standard devices with different flow rates are arranged on the same stagnation container), the stagnation container has larger volume in order to meet the characteristic requirements of the device, so that the device has larger volume and needs long stabilization time when the flow rate is switched, thereby influencing the efficiency and the production progress, and for this reason, the high-efficiency gas flow standard device capable of detecting a plurality of flowmeters simultaneously is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can examine and determine many flowmeters's high-efficient gas flow standard device simultaneously to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a high-efficiency gas flow standard device capable of simultaneously calibrating a plurality of flowmeters comprises a calibration platform assembly, a standard device assembly, a power system, a signal acquisition and control system and a calibration software system;
the calibration platform assembly consists of a front straight pipe section with a silencer, a to-be-tested flow meter group, an electric lifter group, a honeycomb rectifier group and a rear straight pipe section;
the standard device component consists of a stagnation container group, a critical flow Venturi nozzle switch valve group, a gas collection header, a transmitter component interface and an electrical appliance control cabinet;
the power system consists of a vacuum buffer container, a water circulation vacuum pump set, a water-gas separation container and a water supply tank of a water circulation vacuum pump;
the signal acquisition and control system consists of a temperature and humidity transmitter, a multipath pulse time counter, a plurality of temperature transmitters, a plurality of pressure transmitters and a signal input and output module, wherein each flowmeter and the stagnation container group on the detected flowmeter group are provided with the independent temperature transmitter and pressure transmitter, the temperature transmitter and the pressure transmitter are connected with the stagnation container group through a transmitter component interface to realize accurate acquisition of analog signals, the multipath pulse time counter distributes an independent signal channel for each flowmeter to realize accurate acquisition of flow pulse signals, and the signal output module realizes control of each valve;
the verification software system realizes control, detection and data processing of a verification process and automatically completes verification operation;
the stagnation container group is communicated with the rear straight pipe section through a connecting pipe section, and a stagnation container switching valve is installed on the connecting pipe section.
Preferably, the calibration platform assembly further comprises a platform for supporting, a straight pipe section support frame for supporting the rear straight pipe section, the straight pipe section support frame is mounted on the platform, a honeycomb rectifier is communicated among a plurality of flowmeters on the flow meter group to be tested, the lower end of each flowmeter is connected with a flowmeter mounting table, the flowmeter mounting table is movably mounted on the platform, the honeycomb rectifier group is composed of a plurality of honeycomb rectifiers, a honeycomb rectifier positioning support is mounted at the lower end of each honeycomb rectifier, the honeycomb rectifier positioning support is mounted on the platform, an electric lifter mounted at the lower end of the platform is arranged at the lower end of each flowmeter mounting table, the electric lifters form an electric lifter group, a double-push cylinder is mounted on the front straight pipe section, the lower end of the double-push cylinder is connected with a cylinder positioning support mounted on the platform, and the front side wall of the platform is connected with a cylinder air source switch for opening and closing the double-push, the front side wall of the platform is connected with an electric lifter power switch for opening and closing the electric lifter.
Preferably, the electrical control cabinet is of a cabinet type structure, and a partition plate is additionally arranged inside the electrical control cabinet to divide the electrical control cabinet into two independent chambers which are respectively used for installing the control system module and the transmitter assembly.
Preferably, the flowmeter mounting table is of a V-shaped sizing block structure.
Compared with the prior art, the beneficial effects of the utility model are that:
1. a plurality of flowmeters can be simultaneously detected, and the efficiency is effectively improved;
2. the device has compact structure and small occupied space;
3. the design of a plurality of stagnation containers is adopted, and the stagnation containers are installed in parallel, so that the miniaturization of the device and the rapidness and stability after the flow is switched are realized;
4. a honeycomb rectifier is arranged between the flowmeters, so that the interference of pulse, vortex and the like generated when a medium passes through the flowmeters is eliminated, and the stability of the medium flow state between the flowmeters is ensured;
5. the electric lifter and the flowmeter mounting table with the V-shaped sizing block structure realize the quick concentric mounting of a plurality of flowmeters;
6. each detected flowmeter is provided with an independent pressure transmitter and a pulse time counter channel, so that signal crosstalk among flowmeters is eliminated, and the truth and reliability of data are ensured;
7. the device is arranged in a modularized manner, and convenience is brought to maintenance, fault judgment and repair.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the structure of the verification platform of the present invention;
fig. 3 is a schematic diagram of the structure of the etalon assembly of the present invention.
In the figure: the device comprises a front straight pipe section 1, a detected flowmeter group 2, a honeycomb rectifier group 3, a rear straight pipe section 4, a connecting pipe section 5, a stagnation container switching valve 6, a stagnation container group 7, a critical flow venturi nozzle group 8, a critical flow venturi nozzle switch valve group 9, a gas collection manifold 10, a transmitter assembly interface 11, an electrical appliance control cabinet 12, a vacuum buffer container 13, a water circulation vacuum pump group 14, a water-gas separation container 15, a water circulation vacuum pump water supply tank 16, a double-push cylinder 17, a cylinder positioning support 18, a platform 19, a cylinder gas source switch 20, an electric lifter power switch 21, a honeycomb rectifier positioning support 22, a flowmeter installation platform 23, a straight pipe section support 24 and an electric lifter 25.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
a high-efficiency gas flow standard device capable of simultaneously calibrating a plurality of flowmeters comprises a calibration platform assembly, a standard device assembly, a power system, a signal acquisition and control system and a calibration software system;
the calibration platform assembly consists of a front straight pipe section 1 with a silencer, a to-be-tested flow meter group 2, an electric lifter group, a honeycomb rectifier group 3 and a rear straight pipe section 4;
the standard component consists of a stagnation container group 7, a critical flow Venturi nozzle group 8, a critical flow Venturi nozzle switch valve group 9, a gas collecting header 10, a transmitter component interface 11 and an electrical control cabinet 12, wherein the electrical control cabinet 12 is of a cabinet structure, a partition plate is additionally arranged inside the electrical control cabinet 12 to be divided into two independent chambers which are respectively used for installing a control system module and a transmitter component, and the upper surface of the electrical control cabinet 12 is used for installing the stagnation container group 7, the critical flow Venturi nozzle group 8, the critical flow Venturi nozzle switch valve group 9 and the gas collecting header 10;
the power system consists of a vacuum buffer container 13, a water circulation vacuum pump set 14, a water-gas separation container 15 and a water supply tank 16 of a water circulation vacuum pump;
the signal acquisition and control system is composed of a temperature and humidity transmitter, a multipath pulse time counter, a plurality of temperature transmitters, a plurality of pressure transmitters and a signal input and output module, each flowmeter and the stagnation container group 7 on the detected flowmeter group 2 are provided with the independent temperature transmitter and pressure transmitter, the temperature transmitter and the pressure transmitter are connected with the stagnation container group 7 through a transmitter component interface 11 to realize accurate acquisition of analog signals, the multipath pulse time counter distributes an independent signal channel for each flowmeter to realize accurate acquisition of flow pulse signals, and the signal output module realizes control of each valve;
the verification software system realizes control, detection and data processing of the verification process and automatically completes verification operation;
the stagnation container group 7 is communicated with the rear straight pipe section 4 through a connecting pipe section 5, and a stagnation container switching valve 6 is installed on the connecting pipe section 5.
The verification platform assembly further comprises a platform 19 with a supporting function, a straight pipe section supporting frame 24 for supporting the rear straight pipe section 4, the straight pipe section supporting frame 24 is installed on the platform 19, honeycomb rectifiers are communicated among a plurality of flowmeters on the detected flowmeter group 2, the lower end of each flowmeter is connected with a flowmeter installation platform 23, the flowmeter installation platforms 23 are movably installed on the platform 19, the honeycomb rectifiers form a honeycomb rectifier group 3, a honeycomb rectifier positioning support 22 is installed at the lower end of each honeycomb rectifier, the honeycomb rectifier positioning support 22 is installed on the platform 19, an electric lifter 25 installed at the lower end of the platform 19 is arranged at the lower end of each flowmeter installation platform 23, the electric lifters 25 form an electric lifter group, the flowmeter installation platform 23 is of a V-shaped sizing block structure, a double-push air cylinder 17 is installed on the front straight pipe section 1, the lower end of the double-push air cylinder 17 is connected with an air cylinder positioning support 18 installed on the platform, the front side wall of the platform 19 is connected with a cylinder air source switch 20 for opening and closing the double-push cylinder 17, and the front side wall of the platform 19 is connected with an electric lifter power switch 21 for opening and closing an electric lifter 25.
During operation, a detection medium enters from the front straight pipe section 1, passes through the detected flowmeter group 2, the honeycomb rectifier group 3, the rear straight pipe section 4, the connecting pipe section 5 and the stagnation container switching valve 6, then enters the stagnation container group 7, enters the vacuum buffer container 13 through the critical flow venturi nozzle group 8, the critical flow venturi nozzle switch valve group 9 and the gas collection collecting pipe 10, and finally is discharged into the atmosphere after being subjected to water-gas separation through the water circulation vacuum pump group 14 and the water-gas separation container 15.
A plurality of flowmeters can be simultaneously detected, and the efficiency is effectively improved; the device has compact structure and small occupied space; the design of a plurality of stagnation containers is adopted, and the stagnation containers are installed in parallel, so that the miniaturization of the device and the rapidness and stability after the flow is switched are realized; a honeycomb rectifier is arranged between the flowmeters, so that the interference of pulse, vortex and the like generated when a medium passes through the flowmeters is eliminated, and the stability of the medium flow state between the flowmeters is ensured; the electric lifter 25 and the flowmeter mounting table 23 with the V-shaped sizing block structure realize the quick concentric mounting of a plurality of flowmeters; each detected flowmeter is provided with an independent pressure transmitter and a pulse time counter channel, so that signal crosstalk among flowmeters is eliminated, and the truth and reliability of data are ensured; the device is arranged in a modularized manner, and convenience is brought to maintenance, fault judgment and repair.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a can examine and determine high-efficient gas flow standard device of many flowmeters simultaneously, includes examination platform subassembly, etalon subassembly, driving system, signal acquisition and control system and examination software system, its characterized in that:
the calibration platform assembly consists of a front straight pipe section (1) with a silencer, a to-be-tested flow meter group (2), an electric lifter group, a honeycomb rectifier group (3) and a rear straight pipe section (4);
the standard device component consists of a stagnation container group (7), a critical flow Venturi nozzle group (8), a critical flow Venturi nozzle switch valve group (9), a gas collection header (10), a transmitter component interface (11) and an electrical appliance control cabinet (12);
the power system consists of a vacuum buffer container (13), a water circulation vacuum pump set (14), a water-gas separation container (15) and a water supply tank (16) of a water circulation vacuum pump;
the signal acquisition and control system consists of a temperature and humidity transmitter, a multipath pulse time counter, a plurality of temperature transmitters, a plurality of pressure transmitters and a signal input and output module, each flowmeter and stagnation container group (7) on the detected flowmeter group (2) is provided with the independent temperature transmitter and pressure transmitter, the temperature transmitter and the pressure transmitter are connected with the stagnation container group (7) through a transmitter component interface (11) to realize accurate acquisition of analog signals, the multipath pulse time counter distributes an independent signal channel for each flowmeter to realize accurate acquisition of flow pulse signals, and the signal output module realizes control of each valve;
the verification software system realizes control, detection and data processing of a verification process and automatically completes verification operation;
the stagnation container set (7) is communicated with the rear straight pipe section (4) through a connecting pipe section (5), and a stagnation container switching valve (6) is installed on the connecting pipe section (5).
2. The high efficiency gas flow calibration apparatus for simultaneously calibrating a plurality of flowmeters as claimed in claim 1, wherein: the detection platform assembly further comprises a platform (19) for supporting, a straight pipe section support frame (24) for supporting a rear straight pipe section (4), the straight pipe section support frame (24) is installed on the platform (19), honeycomb rectifiers are communicated among a plurality of flowmeters on the detected flowmeter group (2), the lower end of each flowmeter is connected with a flowmeter installation platform (23), the flowmeter installation platform (23) is movably installed on the platform (19), the honeycomb rectifier group (3) is formed by the honeycomb rectifiers, a honeycomb rectifier positioning support (22) is installed at the lower end of each honeycomb rectifier, the honeycomb rectifier positioning support (22) is installed on the platform (19), an electric lifter (25) installed at the lower end of the platform (19) is arranged at the lower end of each flowmeter installation platform (23), and the electric lifters (25) form an electric lifter group, install two cylinders (17) that push away on preceding straight tube section (1), the lower extreme that pushes away two cylinders (17) is connected with cylinder locating support (18) of installing on platform (19), the preceding lateral wall of platform (19) is connected with cylinder air supply switch (20) that are used for opening and close two cylinders (17) that push away, the preceding lateral wall of platform (19) is connected with electric lift switch (21) that are used for opening and close electric lift (25).
3. The high efficiency gas flow calibration apparatus for simultaneously calibrating a plurality of flowmeters as claimed in claim 1, wherein: the electric appliance control cabinet (12) is of a cabinet type structure, and a partition board is additionally arranged inside the electric appliance control cabinet (12) to divide the electric appliance control cabinet into two independent chambers which are respectively used for installing a control system module and a transmitter assembly.
4. The high-efficiency gas flow standard device capable of simultaneously verifying a plurality of flowmeters as claimed in claim 2, wherein: the flowmeter mounting table (23) is of a V-shaped sizing block structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921179448.9U CN209979033U (en) | 2019-07-25 | 2019-07-25 | High-efficiency gas flow standard device capable of simultaneously detecting multiple flowmeters |
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| CN201921179448.9U CN209979033U (en) | 2019-07-25 | 2019-07-25 | High-efficiency gas flow standard device capable of simultaneously detecting multiple flowmeters |
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| CN209979033U true CN209979033U (en) | 2020-01-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220576A (en) * | 2019-07-25 | 2019-09-10 | 浙江裕顺仪表有限公司 | A kind of efficient gas flow standard device that can examine and determine more flowmeters simultaneously |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220576A (en) * | 2019-07-25 | 2019-09-10 | 浙江裕顺仪表有限公司 | A kind of efficient gas flow standard device that can examine and determine more flowmeters simultaneously |
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