CN215865419U

CN215865419U - Standard meter method liquid flow standard device

Info

Publication number: CN215865419U
Application number: CN202122359708.4U
Authority: CN
Inventors: 赵志婵; 顾文达; 赵春龙
Original assignee: Tangshan Jingzhi Instrument Co ltd
Current assignee: Tangshan Jingzhi Instrument Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-02-18
Anticipated expiration: 2031-09-28

Abstract

The utility model relates to the technical field of liquid flow standard devices, in particular to a standard meter method liquid flow standard device. The pneumatic stop valve is connected with the inlet ends of the first pipeline assembly, the second pipeline assembly and the third pipeline assembly through the quick-assembly flange assembly, the detected flowmeter, the standard flowmeter and the meter clamping device are arranged on the first pipeline assembly, the second pipeline assembly and the third pipeline assembly, and the outlet ends of the first pipeline assembly, the second pipeline assembly and the third pipeline assembly are connected with the regulating valve through the quick-assembly flange assembly. The flange of having realized connecting tube is the fast-assembling flange, has saved the time of changing the pipeline subassembly, has improved the function of change efficiency. The problem of traditional flange be the spiral shell threaded connection, installation and dismantlement are inconvenient and waste time is solved.

Description

Standard meter method liquid flow standard device

Technical Field

The utility model relates to the technical field of liquid flow standard devices, in particular to a standard meter method liquid flow standard device.

Background

The standard liquid flow meter consists of liquid source system, standard meter and tested system. The liquid source system consists of a water storage tank, a water pump, a pressure stabilizing container and other equipment; the system to be detected is composed of a measuring pipeline, a valve and other equipment. The existing standard meter method liquid flow standard device has the problems of time and labor consumption in installation and disassembly and low replacement efficiency when a pipeline with a corresponding caliber is replaced according to detected flowmeters with different calibers.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems that: aiming at the technical defects, the standard liquid flow rate device adopting the standard meter method is characterized in that a pneumatic stop valve is connected with the inlet ends of a first pipeline assembly, a second pipeline assembly and a third pipeline assembly through a quick-mounting flange assembly, a detected flowmeter, a standard flowmeter and a meter clamping device are arranged on the first pipeline assembly, the second pipeline assembly and the third pipeline assembly, and the outlet ends of the first pipeline assembly, the second pipeline assembly and the third pipeline assembly are connected with a regulating valve through the quick-mounting flange assembly. The flange of having realized connecting tube is the fast-assembling flange, has saved the time of changing the pipeline subassembly, has improved the function of change efficiency. The problem of traditional flange be the spiral shell threaded connection, installation and dismantlement are inconvenient and waste time is solved.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a standard meter method liquid flow standard device is characterized in that the outlet end of a water storage tank is connected with a water pump, the water pump is electrically connected with a variable frequency controller, the outlet end of the water pump is connected with a check valve, the outlet end of the check valve is connected with a filter, the outlet end of the filter is connected with a pressure stabilizing container, the outlet end of the pressure stabilizing container is connected with a gas eliminator, the outlet end of the gas eliminator is respectively connected with three pipelines, each pipeline is respectively provided with a pneumatic stop valve, the outlet ends of the three pneumatic stop valves are respectively connected with a first pipeline assembly, a second pipeline assembly and a third pipeline assembly through fast-assembling flange assemblies, the first pipeline assembly, the second pipeline assembly and the third pipeline assembly are respectively and sequentially provided with a detected flowmeter, a standard flowmeter and a meter clamping device, the outlet ends of the first pipeline assembly, the second pipeline assembly and the third pipeline assembly are respectively connected with a regulating valve through the fast-assembling flange assemblies, the outlet ends of the three groups of regulating valves are connected with electric valves in a converging manner, and the outlet ends of the electric valves are connected with the water storage tank.

Further optimizing the technical scheme, the quick-mounting flange component comprises a first flange plate, a second flange plate, hinged strips, hinged shafts, hinged blocks, U-shaped fixed rods, connecting columns, stop blocks, connecting strips and sleeve holes, the two ends of each hinged strip are respectively and symmetrically provided with the hinged shafts, two groups of hinged shafts are respectively hinged with the hinged blocks, the front end of each group of hinged blocks is respectively connected with the U-shaped fixed rods, the first flange plate and the second flange plate which are oppositely arranged are respectively clamped in the two groups of U-shaped fixed rods, the front ends of the two groups of U-shaped fixed rods are respectively provided with the connecting columns, the connecting columns at the front ends of the group of U-shaped fixed rods are respectively sleeved with the connecting strips, the sleeve holes are arranged on the connecting strips, the front ends of the connecting columns sleeved with the connecting strips are respectively and fixedly provided with the stop blocks, the outlet end of the pneumatic stop valve and the inlet end of the regulating valve are both connected with the first flange plates, and the two ends of the first pipeline assembly, the second pipeline assembly and the third pipeline assembly are connected with second flange plates.

Further optimize this technical scheme, the size of connecting column matches with the size of trepanning.

Further optimize this technical scheme, standard flowmeter is electromagnetic flowmeter.

Compared with the prior art, the utility model has the beneficial effects that: through set up fast-assembling flange subassembly at the both ends of measuring pipeline, dismantlement and installation time when having reduced the corresponding pipeline of change have improved change efficiency.

Drawings

FIG. 1 is a schematic diagram of a liquid flow rate calibration device using a standard meter method.

FIG. 2 is a schematic diagram of a quick mount flange assembly for a standard meter format liquid flow calibration device.

In the figure, 1, a water storage tank; 2. a water pump; 3. a variable frequency controller; 4. a check valve; 5. a filter; 6. a pressure stabilizing container; 7. a gas eliminator; 8. a first conduit assembly; 9. a second conduit assembly; 10. a third conduit assembly; 11. a pneumatic stop valve; 12. a flow meter to be detected; 13. a standard flow meter; 14. a meter clamping device; 15. adjusting a valve; 16. an electrically operated valve; 17. a quick-mounting flange assembly; 1701. a first flange plate; 1702. a second flange plate; 1703. a hinge strip; 1704. hinging a shaft; 1705. a hinged block; 1706. a U-shaped fixing rod; 1707. connecting columns; 1708. a stopper; 1709. and (4) connecting strips.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Referring to fig. 1-2, the water storage tank has a structure in which an outlet end of a water storage tank 1 is connected with a water pump 2, the water pump 2 is electrically connected with a frequency conversion controller 3, an outlet end of the water pump 2 is connected with a check valve 4, an outlet end of the check valve 4 is connected with a filter 5, an outlet end of the filter 5 is connected with a pressure stabilizing container 6, an outlet end of the pressure stabilizing container 6 is connected with a gas eliminator 7, an outlet end of the gas eliminator 7 is connected with three pipelines, each pipeline is provided with a pneumatic stop valve 11, outlet ends of the three pneumatic stop valves 11 are respectively connected with a first pipeline assembly 8, a second pipeline assembly 9 and a third pipeline assembly 10 through a quick-mounting flange assembly 17, and the first pipeline assembly 8, the second pipeline assembly 9 and the third pipeline assembly 10 are respectively and sequentially provided with a detected flow meter 12, a standard flow meter 13, a detected flow meter 12, a standard flow meter 13, And the outlet ends of the first pipeline assembly 8, the second pipeline assembly 9 and the third pipeline assembly 10 are respectively connected with a regulating valve 15 through a quick-mounting flange assembly 17, the outlet ends of the regulating valves 15 are connected with an electric valve 16 in a converging manner, and the outlet ends of the electric valve 16 are connected with the water storage tank 1.

Preferably, the quick-mounting flange assembly 17 comprises a first flange 1701, a second flange 1702, a hinge bar 1703, a hinge shaft 1704, a hinge block 1705, a U-shaped fixing rod 1706, a connecting column 1707, a stop 1708, a connecting bar 1709 and a trepan, two ends of the hinge bar 1703 are respectively symmetrically provided with hinge shafts 1704, two groups of hinge shafts 1704 are respectively hinged with hinge blocks 1705, the front end of each group of hinge blocks 1705 is respectively connected with a U-shaped fixed rod 1706, the two groups of U-shaped fixed rods 1706 are respectively clamped with a first flange 1701 and a second flange 1702 which are oppositely arranged, the front ends of the two groups of U-shaped fixed rods 1706 are respectively provided with a connecting column 1707, wherein the connecting columns 1707 at the front ends of one group of U-shaped fixing rods 1706 are respectively sleeved with a connecting bar 1709, the connecting bar 1709 is provided with a sleeve hole, and the front end of the connecting bar 1707 sleeved with the connecting bar 1709 is respectively and fixedly provided with a stop 1708. The first flange 1701 is provided at the outlet end of the pneumatic cutoff valve 11 and the inlet end of the regulating valve 15 (i.e., the outlet end of the pneumatic cutoff valve 11 and the inlet end of the regulating valve 15 are both provided with the first flange 1701), and the second flange 1702 is provided at both ends of the first pipe assembly 8, the second pipe assembly 9, and the third pipe assembly 10.

Preferably, the size of the connecting column 1707 matches the size of the trepan, and the diameter of the stopper 1708 is larger than the diameter of the connecting column 1707. The length of the connecting column 1707 with the stop 1708 is longer than that of the connecting column 1707 without the stop 1708, so that the connecting strips 1709 can fix the two sets of U-shaped fixing rods 1706 conveniently.

Preferably, the standard flow meter 13 is an electromagnetic flow meter.

When the flowmeter is used, as shown in the combined figure 1-2, the detected flowmeter 12 is installed in a measuring pipeline according to requirements, a circulating system is started, water flows through the detected flowmeter 12 and then flows through the standard flowmeter 13, and the output value of the detected flowmeter 12 is compared with the measured value of the standard flowmeter 13, so that the metering performance of the detected flowmeter 12 can be determined. The measuring pipeline comprises three groups of pipeline assemblies, namely a first pipeline assembly 8, a second pipeline assembly 9 and a third pipeline assembly 10, wherein the three pipeline assemblies comprise a plurality of pipelines with the same flange, the first pipeline assembly 8 comprises DN100 pipelines, DN80 pipelines, DN65 pipelines, DN50 pipelines, DN40 pipelines, DN32 pipelines, DN25 pipelines, DN20 pipelines and DN15 pipelines (the diameters and the thicknesses of flange plates at two ends of each pipeline are the same so as to be connected with a first flange plate 1701), each pipeline can be disassembled and replaced, the measurement of the flow meters with all calibers smaller than the calibers of the measuring pipeline can be realized, and therefore the standard table method verification of the DN15-DN100 caliber flow meters can be met. The second pipeline assembly 9 comprises a DN200 pipeline, a DN150 pipeline and a DN125 pipeline, so that the standard table method verification of the DN125-DN200 caliber flow meter can be met; the third conduit assembly 10 comprises DN300 and DN250 conduits and thus may be qualified for a standard tabular certification for a DN250-DN300 caliber flow meter.

The specific replacement method is, as shown in fig. 2, to replace the first pipeline assembly 8, for example, assuming that it is a DN100 pipeline at the beginning, now it is necessary to detect the flowmeter of the DN80 pipeline, first pull out the right end of the connecting bar 1709 from the connecting column 1707 on the right, then break off the two sets of U-shaped fixing rods 1706 to both sides, and at this time, can detach the DN100 pipeline; then manually placing the DN80 pipeline at the position of the original DN100 pipeline, aligning a second flange 1702 at the inlet end of the DN80 pipeline with a first flange 1701 at the outlet end of the pneumatic stop valve 11 (a sealing gasket is arranged between the two flanges), aligning a second flange 1702 at the outlet end of the DN80 pipeline with a first flange 1701 at the inlet end of the regulating valve 15 (a sealing gasket is arranged between the two flanges), respectively inserting two groups of U-shaped fixing rods 1706 outside the pipeline connected with the first flange 1701 and the second flange 1702 to enable the hinge bar 1703 to be close to the flanges, then respectively holding one ends of the two groups of U-shaped fixing rods 1706 far away from the hinge bar 1703 by a worker to enable the ends of the two groups of U-shaped fixing rods 1706 to be close to each other, and respectively sleeving the two groups of connecting bars 1709 on the opposite connecting posts 1707 by the worker after the first flange 1701 and the second flange 1702 are aligned and tightly attached to complete the installation.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides a standard meter method liquid flow standard device, includes water storage tank (1), water storage tank (1) is connected with water pump (2), water pump (2) electric connection has frequency conversion controller (3), the exit end of water pump (2) is connected with check valve (4), the exit end of check valve (4) is connected with filter (5), the exit end of filter (5) is connected with steady voltage container (6), the exit end of steady voltage container (6) is connected with air eliminator (7), its characterized in that: the outlet ends of the air eliminator (7) are respectively connected with three pipelines, each pipeline is provided with a pneumatic stop valve (11), the outlet ends of the three groups of pneumatic stop valves (11) are respectively connected with a first pipeline assembly (8), a second pipeline assembly (9) and a third pipeline assembly (10) through a fast-assembling flange assembly (17), the first pipeline assembly (8), the second pipeline assembly (9) and the third pipeline assembly (10) are respectively and sequentially provided with a detected flowmeter (12), a standard flowmeter (13) and a meter clamping device (14), the outlet ends of the first pipeline assembly (8), the second pipeline assembly (9) and the third pipeline assembly (10) are connected with the regulating valve (15) through the fast-assembling flange assembly (17) respectively, the outlet ends of the regulating valve (15) are connected with the electric valve (16) in a converging mode, and the outlet end of the electric valve (16) is connected with the water storage tank (1).

2. The standard meter method liquid flow rate standard device according to claim 1, wherein: the quick-mounting flange assembly (17) comprises a first flange plate (1701), a second flange plate (1702), hinge strips (1703), hinge shafts (1704), hinge blocks (1705), U-shaped fixing rods (1706), connecting columns (1707), stop blocks (1708), connecting strips (1709) and trepanning, wherein the hinge shafts (1704) are symmetrically arranged at two ends of each hinge strip (1703), the hinge blocks (1705) are respectively hinged to two groups of hinge shafts (1704), the front end of each group of hinge blocks (1705) is respectively connected with the U-shaped fixing rods (1706), the first flange plate (1701) and the second flange plate (1702) which are oppositely arranged are respectively clamped in the two groups of U-shaped fixing rods (1706), the connecting columns (1707) are respectively arranged at the front ends of the two groups of U-shaped fixing rods (1706), and the connecting strips (1709) are respectively sleeved on the connecting columns (1707) at the front ends of the group of the U-shaped fixing rods (1706), be provided with the trepanning on connecting strip (1709), the cover is equipped with connecting strip (1709) the front end of spliced pole (1707) is fixed respectively and is provided with dog (1708), the exit end of pneumatic stop valve (11) and the entry end of governing valve (15) all are connected with first ring flange (1701), the both ends of first pipeline subassembly (8), second pipeline subassembly (9), third pipeline subassembly (10) all are connected with second ring flange (1702).

3. A standard meter method liquid flow rate standard device according to claim 2, wherein: the size of the connecting column (1707) is matched with that of the trepan, and the diameter of the stop block (1708) is larger than that of the connecting column (1707).

4. The standard meter method liquid flow rate standard device according to claim 1, wherein: the standard flowmeter (13) is an electromagnetic flowmeter.