CN106768122B - Integral movement compound water meter - Google Patents
Integral movement compound water meter Download PDFInfo
- Publication number
- CN106768122B CN106768122B CN201710049910.2A CN201710049910A CN106768122B CN 106768122 B CN106768122 B CN 106768122B CN 201710049910 A CN201710049910 A CN 201710049910A CN 106768122 B CN106768122 B CN 106768122B
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- Prior art keywords
- meter
- main
- flow channel
- integrated
- measuring mechanism
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 150000001875 compounds Chemical class 0.000 title description 4
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F7/00—Volume-flow measuring devices with two or more measuring ranges; Compound meters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
Abstract
The integrated movement duplex water meter is characterized by comprising an integrated meter shell, an integrated movement support, a main meter, an auxiliary meter and a flow control switching valve, wherein a main flow channel for metering the main meter and a branch flow channel for metering the auxiliary meter are designed on the integrated movement support, the branch flow channel is positioned at the upper left part (facing the inlet direction) of the main flow channel, a main meter measuring mechanism is arranged in the main flow channel, the flow control switching valve is arranged in the main flow channel on the water outlet side of the main meter measuring mechanism, the flow channel cross section of the water outlet end of the flow control switching valve is larger than the flow channel cross section of the front end of the flow control switching valve, a main meter metering component is arranged on the meter shell opposite to the main meter impeller component, an auxiliary meter measuring mechanism is arranged in the branch flow channel, and a metering component of the auxiliary meter is arranged on the meter shell opposite to the auxiliary meter measuring mechanism. The invention has simple structure, small pressure loss of the water meter and high measurement precision, and effectively prevents water leakage at the sealing interface. Can accurately measure under larger flow and smaller flow, and has the characteristic of long service life.
Description
Technical Field
The invention belongs to a duplex water meter, in particular to an integrated core duplex water meter.
Background
The double water meter is commonly called as primary and secondary water meter and is composed of two water meters with different diameters. Tap water flows from the minimum flow of the small-caliber water meter to the maximum flow of the large-caliber water meter through the metering range of the water meter. So it is the mechanical water meter with the largest measuring range and the lowest flow lower limit. The flow conversion control valve automatically controls water flow to flow through a bypass minor-caliber auxiliary meter or a major-caliber main meter of a major-caliber simultaneously according to the water flow, and when the water consumption is small, the flow conversion control valve is in a closed state and is metered by the auxiliary meter, and the main meter is not metered; when the flow exceeds a certain value, the flow conversion control valve is opened, and the main meter and the auxiliary meter are simultaneously metered; when the flow rate is reduced to a certain value, the flow rate conversion control valve is closed again, and the auxiliary meter measures.
The traditional duplex water meter basically adopts a split structure, and has two structures: split type casing or integral type casing and split type core, split type casing: as shown in FIG. 1, the large-caliber detachable horizontal spiral vane type water meter and the small-caliber rotary vane type water meter are connected through connecting pipes, connecting elbows and other parts, so that the assembly structure is complex, the assembly parts are numerous, the shell is always leaked due to the sealing problem during assembly, the quality and the volume are large, and the assembly and maintenance are troublesome.
The integrated shell and the split type movement are the lengthened shell and flange cover of the large-caliber detachable horizontal spiral vane type water meter as shown in figures 2 and 3, and the small-caliber water meter and the flow reversing valve are additionally arranged, so that the purpose of measuring the total water volume is achieved. The arrow direction is the water flow direction, its structure is comparatively complicated, and the cavity uniform diameter of runner, the existence of having the flow switching-over valve simultaneously leads to rivers to slow down in the twinkling of an eye, and water gauge pressure loss is great, influences measurement accuracy.
The invention comprises the following steps:
the invention mainly solves the problems of the prior art, and provides the integrated core compound water meter which has the advantages of simple structure, small pressure loss of the water meter and high measurement precision.
The invention aims to solve the technical problems by the following technical scheme, the integrated core duplex water meter is characterized by comprising an integrated meter shell, an integrated core support, a main meter, an auxiliary meter and a flow control switching valve, wherein a main flow channel for measuring the main meter and a branch flow channel for measuring the auxiliary meter are designed on the integrated core support, the branch flow channel is positioned at the left upper part (facing to the inlet direction) of the main flow channel, a main meter measuring mechanism is arranged in the main flow channel, the flow control switching valve is arranged in the main flow channel at the water outlet side of the main meter measuring mechanism, the flow channel cross section of the water outlet end of the flow control switching valve is larger than the flow channel cross section of the front end of the flow control switching valve, the meter shell opposite to the main meter impeller assembly is provided with the main meter measuring assembly, the branch flow channel is internally provided with the auxiliary meter measuring mechanism, and the meter shell opposite to the auxiliary meter measuring mechanism is provided with the auxiliary meter measuring assembly.
As is well known, after water flows through the valve body, the water flow pressure can be reduced, the water flow passage area of the existing compound water meter is basically kept unchanged at the front end and the rear end of the valve body, the instant water flow space is unchanged after the water flows through the valve body, and the pressure loss can not be compensated. The invention increases in the width direction and shortens in the length direction, the shape of the water meter well is more square, so that the invention has large movable space in the water meter well, and the water meter with the same pipe diameter can be suitable for smaller water meter wells.
The secondary meter adopts a positive displacement measuring mechanism. The small flow accuracy is higher.
The main meter measuring mechanism adopts a spiral vane type impeller measuring mechanism.
The sealing mode adopts an integrated opposite-type sealing ring, the special-shaped sealing ring is provided with two sealing end faces, one sealing end face is sealed by a flange cover and is arranged between the flange cover and the integrated watchcase, the other sealing end face is sealed by a shell end vertical to the flange cover and is arranged between the integrated movement bracket and the integrated watchcase.
The sealing system of the invention is also improved greatly, and the two water meters have more positions to be sealed due to more joint surfaces, such as: the split type sealing mechanism at least comprises an independent sealing ring at the flange, an independent sealing ring at the reversing valve and an independent sealing ring at the measuring mechanism. The sealing of split type casing is more: independent sealing rings at the two flanges, independent sealing rings at the reversing valve, independent sealing rings at the measuring mechanism, an auxiliary meter connecting pipe and the like. The more the sealing position is, the greater the possibility of water leakage is, and the invention only has one sealing ring, and simultaneously seals two end surfaces.
The flange cover end sealing ring part is designed with a rubber cylindrical pin matched with the flange cover for positioning, the flange cover is designed with a matched pin hole, the inner side of the shell end sealing ring part is designed with a dovetail wedge, and the integrated movement is designed with a dovetail groove for matching with the dovetail wedge and preventing assembly from falling off. The sealing ring is accurately positioned and firmly jointed with the sealed end surface.
The flow channel inlet is provided with a rectifying rib. The flow is stable by the rectifying ribs, and the measuring precision is high.
The auxiliary meter measuring mechanism is provided with an auxiliary meter one-way valve. The inversion of the water meter and the inversion of the counter caused by the backflow of the water are prevented, and inaccurate metering is caused.
The secondary meter counter adopts a vacuum sealing mode. The reading is always visual and clear, and the influence of weather is avoided so that the reading window generates water mist.
Compared with the traditional duplex water meter, the invention abandons the structure of the traditional split type watchcase and split type movement, adopts the integrated movement, so that the water meter has better metering performance, high measurement precision, shortened length and reduced occupied space, is more convenient for the installation and maintenance of the water meter on a water supply pipeline, has two sealing end faces, and effectively prevents water leakage at a sealing interface. The novel product has the characteristics of simple structure, small pressure loss of the water meter, novelty, reliable and stable performance, strong anti-fouling capability, capability of accurately metering under larger flow and smaller flow, long service life and the like.
Drawings
Fig. 1 is a schematic structural view of a split-shell duplex water meter
Fig. 2 is a schematic structural diagram of a duplex water meter with an integrated housing and a split movement
FIG. 3 is a side view of FIG. 2
FIG. 4 is a schematic view of the structure of the present invention
FIG. 5 is a sectional view of B-B of FIG. 4
Fig. 6 is a schematic structural view of an integrated movement holder
FIG. 7 is a schematic diagram of an integrated anisotropic seal ring structure
Wherein: 1. the rectifying rib 3, the main meter measuring mechanism 4, the dovetail groove 5, the flange cover 6, the auxiliary meter check valve 7, the flow control switching valve 9, the integral meter case 91, the main runner 92, the branch runner 10, the auxiliary counter 11, the main counter 12, the special-shaped sealing ring 121, the flange cover, the seal 122, the shell end, the seal 123 and the cylindrical pin 124 dovetail wedge.
The specific embodiment is as follows:
the invention will now be described in more detail with reference to the drawings, in which examples are illustrated which will enable a person skilled in the art to more understand the invention, but which are not intended to limit the same in any way
As shown in fig. 4-7, the integrated core duplex water meter is characterized by comprising an integrated meter shell 9, an integrated core bracket 4, a main meter 3, an auxiliary meter 7, an auxiliary meter one-way valve 6 (preventing the inversion of a counter of the water meter) and a flow control switching valve 8, wherein a main flow passage 91 for measuring the main meter and a branch flow passage 92 for measuring the auxiliary meter are designed on the integrated core bracket 4, the branch flow passage 92 is positioned at the left upper part of the main flow passage 91 (facing the inlet direction as shown in fig. 4), the arrow direction in the figure is the water flow direction, a main meter measuring mechanism 3 is arranged in the main flow passage 91, the main meter adopts a spiral vane measuring mechanism, the flow control switching valve 8 is arranged in the main flow passage at the water outlet side of the main meter measuring mechanism, the flow passage sectional area of the water outlet end of the flow control switching valve 8 is larger than the flow passage sectional area of the front end of the flow control switching valve 8, a main meter metering assembly 11 is arranged on the meter shell which is opposite to the main meter impeller assembly, an auxiliary meter measuring mechanism 7 is arranged in the branch flow passage, the auxiliary meter adopts a volumetric measuring mechanism, a metering assembly 10 of the auxiliary meter is arranged on the meter shell which is opposite to the auxiliary meter measuring mechanism, the sealing mode adopts an integral special sealing ring 12, the special sealing ring 12 has two sealing end surfaces, one is a flange cover seal 121 and is arranged between the flange cover 5 and the integral meter shell, the other is a shell end seal 122 which is vertical to the flange cover seal, and the other is arranged between the integral machine core support 4 and the integral meter shell 9. The upper end face of the flange cover seal is designed with a cylindrical pin 123 matched and positioned with the flange cover, the flange cover is designed with a matched pin hole, the inner side of the shell end seal 122 is designed with a dovetail wedge 124, and the integrated movement is designed with a dovetail groove 41 for matching with the dovetail wedge 124 and preventing assembly from falling. The flow channel inlet is provided with a rectifying rib 1, so that the water flow is stable, and the measuring precision is high. The counter of the auxiliary meter adopts a vacuum sealing mode, the reading is always visual and clear, the measuring mechanism of the auxiliary meter adopts a positive displacement structure, and the small flow precision is higher. The water flow flowing through the meter shell is rectified through the water inlet side rectifying rib, flows through the main meter measuring mechanism and then reaches the flow control switching valve, when the switching flow is not reached, the flow control valve is in a closed state, so that the water flow flows to the diversion channel of the integrated machine core bracket, flows out of the diversion channel through the volumetric auxiliary meter and the one-way valve below the auxiliary meter, and the auxiliary meter measuring mechanism is driven to rotate for counting; when the flow reaches the conversion flow, the flow control conversion valve is in an open state, at the moment, the water flow simultaneously impacts the auxiliary meter volumetric measuring mechanism and the main meter spiral vane measuring mechanism to drive the auxiliary meter volumetric measuring mechanism and the main meter spiral vane measuring mechanism to rotate, a worm is arranged on the main meter spiral vane, the worm is meshed with a gear on the bevel gear component, two magnetic steels with different polarities are arranged on the gear, a seal counter is arranged on the upper part of the magnetic steel, a pair of magnetic steels are arranged on a central gear in the seal counter and are coupled with the gear magnetic steel on the bevel gear, and the gear in the indicating mechanism is driven to rotate through mechanical transmission, so that the purpose of measuring the volume of water is achieved.
Claims (6)
1. The integrated core duplex water meter is characterized by comprising an integrated watchcase (9), an integrated core bracket (4) and a main meter; the auxiliary meter and the main meter are distributed and are radially perpendicular to the mounting pipeline, a main flow channel (91) for measuring the main meter and a branch flow channel (92) for measuring the auxiliary meter are designed on the integrated movement support (4), the branch flow channel (92) is positioned at the upper left part of the main flow channel (91) when facing the inlet direction, a main meter measuring mechanism (3) is arranged in the main flow channel (91), the flow control switching valve (8) is arranged in the main flow channel on the water outlet side of the main meter measuring mechanism, the water outlet of the auxiliary meter is converged with the water outlet of the main meter, the flow cross section of the water outlet end of the flow control switching valve (8) is larger than the flow cross section of the front end of the flow control switching valve (8), a main meter measuring component (11) is arranged on a meter shell opposite to the main meter impeller component, a auxiliary meter measuring mechanism (7) is arranged in the branch flow channel, and a meter shell (10) of the auxiliary meter measuring mechanism is arranged opposite to the meter shell;
the sealing mode adopts an integrated opposite-type sealing ring (12), the special-shaped sealing ring (12) is provided with two sealing end faces, one is a flange cover seal (121) and is arranged between the flange cover and the integrated watchcase, the other is a shell end seal (122) which is vertical to the flange cover and is arranged between the integrated movement bracket (4) and the integrated watchcase (9);
the end face of the flange cover end sealing ring part is designed with a cylindrical pin (123) matched and positioned with the flange cover, the flange cover is designed with a matched pin hole, the inner side of the shell end sealing ring part is designed with a dovetail wedge (124), and the integrated movement is designed with a dovetail groove (41) for matching with the dovetail wedge (124) and preventing assembly from falling off.
2. The integrated core duplex water meter of claim 1, wherein the secondary meter employs a positive displacement measuring mechanism.
3. The integrated core duplex water meter of claim 1, wherein the primary meter measuring mechanism is a screw-wing impeller measuring mechanism.
4. The integrated core duplex water meter according to claim 1, wherein the auxiliary meter measuring mechanism (7) is provided with an auxiliary meter check valve (6).
5. The integrated core duplex water meter according to claim 1, wherein the flow channel inlet is provided with a rectifying rib (1).
6. The integrated core duplex water meter of claim 1, wherein the secondary counter is vacuum sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710049910.2A CN106768122B (en) | 2017-01-23 | 2017-01-23 | Integral movement compound water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710049910.2A CN106768122B (en) | 2017-01-23 | 2017-01-23 | Integral movement compound water meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106768122A CN106768122A (en) | 2017-05-31 |
| CN106768122B true CN106768122B (en) | 2023-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710049910.2A Active CN106768122B (en) | 2017-01-23 | 2017-01-23 | Integral movement compound water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106768122B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314793B (en) * | 2017-06-19 | 2023-08-29 | 南京水门电子有限公司 | Detachable parallel combined large-caliber water meter |
| CN113405623B (en) * | 2021-06-29 | 2022-08-09 | 内蒙古自治区林业科学研究院 | Integrated check out test set of forest hydrology |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1203357A (en) * | 1997-04-18 | 1998-12-30 | H·迈内克有限公司 | Combined water-meter |
| CN2510833Y (en) * | 2001-12-21 | 2002-09-11 | 福州真兰水表有限公司 | Vertical spiral-wing water meter with filter screen |
| CN101298994A (en) * | 2007-05-05 | 2008-11-05 | 江西三川水表股份有限公司 | Compound water-saving type water meter |
| CN201780128U (en) * | 2010-08-10 | 2011-03-30 | 连云港连利水表有限公司 | Novel integrated compound water meter |
| CN203132655U (en) * | 2013-03-14 | 2013-08-14 | 福州真兰水表有限公司 | Adjustment device for horizontal helical-vane-type water meter |
| CN203405247U (en) * | 2013-08-16 | 2014-01-22 | 温岭甬岭水表有限公司 | Helical vane type water meter machine core |
| CN206593707U (en) * | 2017-01-23 | 2017-10-27 | 福州真兰水表有限公司 | Integrated machine core compound water metre |
-
2017
- 2017-01-23 CN CN201710049910.2A patent/CN106768122B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1203357A (en) * | 1997-04-18 | 1998-12-30 | H·迈内克有限公司 | Combined water-meter |
| US6079263A (en) * | 1997-04-18 | 2000-06-27 | H. Meinecke Ag | Compound water meter having impeller rotatably supported between main meter measuring and switch-over valve insets |
| CN2510833Y (en) * | 2001-12-21 | 2002-09-11 | 福州真兰水表有限公司 | Vertical spiral-wing water meter with filter screen |
| CN101298994A (en) * | 2007-05-05 | 2008-11-05 | 江西三川水表股份有限公司 | Compound water-saving type water meter |
| CN201780128U (en) * | 2010-08-10 | 2011-03-30 | 连云港连利水表有限公司 | Novel integrated compound water meter |
| CN203132655U (en) * | 2013-03-14 | 2013-08-14 | 福州真兰水表有限公司 | Adjustment device for horizontal helical-vane-type water meter |
| CN203405247U (en) * | 2013-08-16 | 2014-01-22 | 温岭甬岭水表有限公司 | Helical vane type water meter machine core |
| CN206593707U (en) * | 2017-01-23 | 2017-10-27 | 福州真兰水表有限公司 | Integrated machine core compound water metre |
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| CN106768122A (en) | 2017-05-31 |
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