CN201653455U - Rotary wing dry-type multi-streaming water meter - Google Patents
Rotary wing dry-type multi-streaming water meter Download PDFInfo
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- CN201653455U CN201653455U CN2010201093049U CN201020109304U CN201653455U CN 201653455 U CN201653455 U CN 201653455U CN 2010201093049 U CN2010201093049 U CN 2010201093049U CN 201020109304 U CN201020109304 U CN 201020109304U CN 201653455 U CN201653455 U CN 201653455U
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Abstract
The utility model relates to a rotary wing dry-type multi-streaming water meter which is designed to solve the technical problems of poor filter screen structure and poor low-zone flow auxiliary structure of the traditional rotary-wing water meter. The water meter adopts a shunting water inlet method, and a low-zone flow auxiliary structure is arranged in the casing of the water meter; and the water meter is characterized in that a water filtering screen sheet in the low-zone flow auxiliary structure takes the shaped of a boat-shaped strip and is provided with a filter hole and a support rib, two ends of the water filtering screen sheet are tilted and are connected with a water filtering valve, and the support rib on a middle horizontal plane is propped against the bottom of the water filtering valve. The diameter of the water filtering net sheet is larger than that of a water inlet hole of the water filtering valve; and the diameter of a protrusion of a water sealing valve is smaller than that of the water inlet hole of the water filtering valve. The water meter can be mounted indoors or outdoors to meet water supply requirements, is used for measuring the amount of drinking cold water flowing through a tap water pipeline, and belongs to an ideal civilian metering device with the functions of multiple flows, dry type, magnetic gearing and magnet prevention.
Description
Technical field
The utility model relates to high-precision water meter, is a kind of rotor dry type multithread water meter.
Background technology
At present, the water yield of most of water meters is calculated principle and is: housing and enclosure interior volume are fixed, and current promote the impeller rotation, and impeller whenever revolves and turns around, and flows through with regard to the water that a constant volume is arranged; The number of turns of impeller rotation adds up, and multiply by the enclosure interior volume, obtains the Total Water that water flows through.Be divided into by the metering grade according to former national Specification water meter: A, B, four grades of C, D, the metering grade has reflected the metering performance under working flow scope, the especially tiny flow quantity of water meter.With the high water meter of metering grade water meter is worked in comprising the bigger flow range of tiny flow quantity, also fundamentally really improve water meter sensitivity and metering ability.The limits of error: 1, from comprising that minimum flow is ± 5% to the limits of error the low district that does not comprise the flow of demarcating; 2, from comprising that the boundary flow is ± 2% to the limits of error the height district that comprised current-carrying capacity.
But most of rotor water gauges are subjected to the interior central gear magnet steel of housing and the influence of impeller magnet steel suction, flow is generally more than 10L/h, class of accuracy or metering grade can only reach 2 grades (R40) or A level or 2 grades (R80) or B level, can't satisfy the traffic requirement of 2 grades (R160) or C level water meter.For solving above-mentioned technical barrier, as the ZL patent No. 200420021905.9 that discloses in the Chinese patent literature, May 25 2005 Granted publication day, utility model title " high precision water flow measurement device ", the water meter turbine that one water intaking valve piece and tiny flow quantity pilot hole drive is set in this water meter case, described impeller is connected with described metering indicator, one center screen pack is set in the water meter case, screen pack top, center is provided with the impeller box of a band impeller, the baseplane of described impeller box connects a valve piece, the baseplane of valve piece is provided with a circular conical surface, the central inner of screen pack is provided with an inner conical surface that matches with circular conical surface, and the cylindrical anchor ring wringing fit of the interior anchor ring of screen pack and impeller box forms the tiny flow quantity intake antrum; Its advantage is the metering precision height, can reach tiny flow quantity metering effect, meets the requirement of 2 grades of (R160) watermeter flowing rates.But screen pack is provided with the valve piece in the water flow measurement apparatus structure of above-mentioned water meter, and structure is comparatively complicated, and the not good enough degree of accuracy of water meter when small or big flow that cause of filter screen structure is relatively poor simultaneously.
Summary of the invention
For overcoming the deficiency of above-mentioned existence, the utility model purpose is to provide a kind of rotor dry type multithread water meter that 2 grades (R160) requires that satisfies to this area, make it solve low district's flow supplementary structure and the not good enough technical matters of filter screen structure in the existing rotor water gauge, its objective is to be achieved through the following technical solutions.
A kind of rotor dry type multithread water meter, adopt the shunting inlet method, be provided with low district flow supplementary structure in the housing of water meter, the impeller box of this structure is connected with trap, be provided with impeller in impeller box and the cavity that trap is connected, support pinnacle, bottom valve, the axis of guide, supporting seat, magnet steel, the bottom of trap is provided with the water strainer sheet, and two sides are arranged with the lateral inflow hole; Described magnet steel is connected with the indicating mechanism of this water meter, and trap is provided with the axis of guide, and the axis of guide is provided with bottom valve, and impeller box is provided with and supports the pinnacle, supports the supporting seat on the pinnacle insertion impeller.Low district flow supplementary structure critical piece is bottom valve and water strainer sheet, and the shunting inlet method is to utilize water flow impact pressure to make bottom valve automatic shutter distributing inlet.Promptly when big flow, open simultaneously in bottom valve and lateral inflow hole, and impeller is impacted in bottom valve and the water inlet of lateral inflow hole; When low discharge, bottom valve cuts out automatically, and the lateral inflow hole is continued water inlet and impacted impeller, finishes metering.
It is characterized in that described water strainer sheet is the ship shape sheet, the water strainer sheet is provided with filter opening and brace rod, and the two ends perk of water strainer sheet is connected with trap, and the brace rod on middle section water plane and the bottom of trap offset.The water strainer sheet of ship shape sheet has the higher elasticity of induction sensitivity, and the brace rod of water strainer sheet and trap keep certain distance to improve the induction sensitivity of water strainer sheet further.Small water flow impact pressure makes bottom valve close into water automatically, and the water strainer sheet is to small water flow impact pressure induction sensitivity height, and the good airproof performance between bottom valve and the trap is difficult for causing phenomenon generations such as backflow.The requirement of 2 grades of (R160) watermeter flowing rates of its on-the-job satisfaction process, the accurate measurement requirement when realizing small current initiating has improved the impulsive force of current to impeller, reaches the water saving purpose.Simultaneously, consider the pressure loss requirement of water meter, the water strainer sheet has satisfied water meter at Q in conjunction with the housing of general water meter
3=2.5m
3Pressure loss Δ P≤0.063MPa during/h.
Described water strainer sheet diameter is greater than the inlet opening diameter of trap, and the protrusion diameter of bottom valve is less than the inlet opening diameter of trap.Difference between above-mentioned diameter, when the minute water flow, the projection of bottom valve seals the inlet opening of trap better by the pressure under the current direction; When big discharge, the water strainer sheet upwards pressure by current and pushes bottom valve better open.
Described indicating mechanism is provided with the counting mechanism of pointer and character wheel combination, and counting mechanism and measuring mechanism are by the direct magnetic transmission of magnet steel.The mode of above-mentioned direct magnetic transmission has overcome the magnetic phenomenon of taking off of indicating mechanism in the existing dry-type meter, has advanced application technology, and resistance to frost is good, reading, checks meter conveniently, can keep clear reading for a long time, the characteristics of long service life.
The utility model adopts quality matetrial to make, and is stable and reliable for performance, and compact conformation is easy for installation, pollution-free; Counter adopts vacuum seal, and isolates with water, can prevent the condensation atomizing.Be installed on indoor or outdoors and all can satisfy the supply of the water yield, be used to measure the total amount of water supply pipe Chilled Drinking Water of flowing through, belong to the desirable civilian measuring instrument of multithread bundle, dry type, magnetic transmission, antimagnetic function.
Description of drawings
Fig. 1 is a low district of the present utility model flow supplementary structure synoptic diagram, the water (flow) direction when arrow is low discharge among the figure.
Fig. 2 is a high district of the present utility model flow supplementary structure synoptic diagram, the water (flow) direction when arrow is big flow among the figure.
Fig. 3 is structural representation of the present utility model, and arrow is a water (flow) direction among the figure.
Above figure number and title: 1, impeller box, 2, impeller, 3, the water strainer sheet, 301, filter opening, 302, brace rod, 4, support the pinnacle, 5, bottom valve, 501, projection, 6, the axis of guide, 7, trap, 701, the inlet opening, 8, supporting seat.
Embodiment
Embodiment is in conjunction with the accompanying drawings to structure of the present utility model, production technology, important technological parameters with install and use and be further described.As shown in Figure 1 and Figure 2, be provided with low district flow supplementary structure in the housing of this water meter, low district flow supplementary structure is made up of impeller box 1, impeller 2, water strainer sheet 3, support pinnacle 4, bottom valve 5, the axis of guide 6, trap 7, supporting seat 8, magnet steel.Be provided with impeller in impeller box and the cavity that trap is connected, support pinnacle, bottom valve, the axis of guide, supporting seat, magnet steel.The water strainer sheet is the ship shape sheet, and the two ends perk of water strainer sheet is connected with the bottom of trap, and the middle section water plane is provided with filter opening 301 and brace rod 302, and the bottom of brace rod and trap offsets.The two sides of trap are arranged with the lateral inflow hole, and magnet steel is connected with the indicating mechanism of this water meter, and the axis of guide of trap is provided with bottom valve, and the projection 501 of bottom valve is inserted in the inlet opening 701 of trap, and the supporting seat on the impeller is inserted on the support pinnacle of impeller box.This water meter adopts the shunting inlet method: utilize water flow impact pressure to make bottom valve automatic shutter distributing inlet.As shown in Figure 1, when small water flow impact pressure makes bottom valve close into water automatically for a short time, the water strainer sheet of ship shape sheet has the higher elasticity of induction sensitivity, the water strainer sheet is to small water flow impact pressure induction sensitivity height, good airproof performance between bottom valve and the trap is difficult for causing phenomenon generations such as backflow.As shown in Figure 2, when water flow impact pressure ambassador bottom valve was opened distributing inlet automatically, the brace rod of water strainer sheet and trap kept certain distance, and current are more accurate to the water flow impact pressure effect of water strainer sheet.
The case material of this water meter is a copper, and the parts of enclosure interior are based on plastics.Plastic items adopts the engineering plastics injection mo(u)lding, and the moulding after the injection mo(u)lding is up to the standards and assembles through processing, the calibration check, and qualified back packing is dispatched from the factory.
One, technical parameter can reach the standard GB/T778-2007 of new nation requirement:
R160 can cover R125, R100, R80, R63, R50 and R40, and satisfies the limits of error: 1, from comprising that minimum flow limits of error to the low district that does not comprise the flow of demarcating are ± 5%; 2, from comprising that boundary flow limits of error to the height district that comprised current-carrying capacity are ± 2%.
Two, installation and use:
1, should not and the liquid of corrosion be arranged with hot water, water temperature≤50 ℃, hydraulic pressure≤1MPa.
2, strong magnetic influence will be avoided in the installation site, avoids being exposed to the sun, pollution and water logging.
3, the new clothes pipeline must be rinsed foreign material such as stone, silt, flax silk in the pipe well, installs again.
4, must level install, up literal, watchcase upward arrow direction must be consistent with water (flow) direction.
Should have 〉=10D before when 5, installing, after should have 〉=straight length or the fluid aligner of 5D (D is the water meter bore), front end should be adorned valve, so that cut off the water supply dismounting; As be installed in the boiler water inlet pipe place, should prevent that the hot water backflow from scorching.
6, the outmoded place of water quality inferiority, pipeline is used, please at preceding installation screen pack, in order to avoid foreign material card jail internal works causes fault.
Get final product direct reading as long as open the table lid when checking meter, very easy to use, and can increase anti-outer magnetic interference and teletransmission pulse output function according to customer requirements.
Claims (3)
1. rotor dry type multithread water meter, adopt the shunting inlet method, be provided with low district flow supplementary structure in the housing of water meter, the impeller box of this structure (1) is connected with trap (7), be provided with impeller (2) in impeller box and the cavity that trap is connected, support pinnacle (4), seal water valve (5), the axis of guide (6), supporting seat (8), magnet steel, the bottom of trap is provided with water strainer sheet (3), and two sides are arranged with the lateral inflow hole; Described magnet steel is connected with the indicating mechanism of this water meter, and trap is provided with the axis of guide, and the axis of guide is provided with seal water valve, and impeller box is provided with and supports the pinnacle, supports the supporting seat on the pinnacle insertion impeller; It is characterized in that described water strainer sheet (3) is the ship shape sheet, the water strainer sheet is provided with filter opening (301) and brace rod (302), and the two ends perk of water strainer sheet is connected with trap (7), and the bottom of the brace rod on middle section water plane and trap (7) offsets.
2. according to the described rotor dry type of claim 1 multithread water meter, it is characterized in that inlet opening (701) diameter of described water strainer sheet (3) diameter greater than trap (7), projection (501) diameter of seal water valve (5) is less than the inlet opening diameter of trap.
3. according to the described rotor dry type of claim 1 multithread water meter, it is characterized in that described indicating mechanism is provided with the counting mechanism of pointer and character wheel combination, counting mechanism and measuring mechanism are by the direct magnetic transmission of magnet steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201093049U CN201653455U (en) | 2010-01-29 | 2010-01-29 | Rotary wing dry-type multi-streaming water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201093049U CN201653455U (en) | 2010-01-29 | 2010-01-29 | Rotary wing dry-type multi-streaming water meter |
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| Publication Number | Publication Date |
|---|---|
| CN201653455U true CN201653455U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201093049U Expired - Fee Related CN201653455U (en) | 2010-01-29 | 2010-01-29 | Rotary wing dry-type multi-streaming water meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3889551B1 (en) * | 2020-03-31 | 2023-10-11 | Apator Powogaz Spolka Akcyjna | A double sided integrated bearing sleeve |
-
2010
- 2010-01-29 CN CN2010201093049U patent/CN201653455U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3889551B1 (en) * | 2020-03-31 | 2023-10-11 | Apator Powogaz Spolka Akcyjna | A double sided integrated bearing sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20140129 |