CN100381793C - Water meter with micro starting flow - Google Patents
Water meter with micro starting flow Download PDFInfo
- Publication number
- CN100381793C CN100381793C CNB200510017921XA CN200510017921A CN100381793C CN 100381793 C CN100381793 C CN 100381793C CN B200510017921X A CNB200510017921X A CN B200510017921XA CN 200510017921 A CN200510017921 A CN 200510017921A CN 100381793 C CN100381793 C CN 100381793C
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- Prior art keywords
- water meter
- water
- valve body
- tube
- cavity
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 132
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- 239000011324 bead Substances 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 238000007789 sealing Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
- 239000008399 tap water Substances 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Measuring Volume Flow (AREA)
Abstract
The present invention relates to a microflow pickup running water meter, which comprises a water meter body. The present invention is characterized in that a flow rotating device is arranged in a tube cavity of a water inlet tube port (6). The flow rotating device comprises a tubular casing (5) which is combined with the inner wall of the water inlet tube port of the water meter in a stationary fit model; a tube cavity of the tubular casing is divided into a front tube cavity and a back tube cavity through an annular circular bead which is processed in the tube cavity, and the tube wall of the back tube cavity is provided with a water outlet hole (4) communicated with an inner cavity of the water meter. A piston type valve body (14), a pressure spring sheathed outside the valve body, and a valve core (17) installed in an inner cavity of the valve body in a penetrating way are arranged in the back tube cavity. The water end face of the valve body (14) is provided with a plurality of microflow water inlet holes (15) communicated with the inner cavity of the valve body. An axial flow channel is arranged in the valve core, the tail end of the flow channel is communicated with an inner cavity of a flow guide barrel (2) of the water meter via a microflow guide tube (8), and the front end of the flow channel is provided with a flow control valve.
Description
Technical field
The present invention relates to a kind of tap water water meter, particularly a kind of water meter with micro starting flow that is used for the commerce and trade clearing.
Background technology
The common water meter of widespread use at present all is to manufacture according to the regulation of standard GB 778-1984, because of its initiating flow excessive, not only exist the requirement that to satisfy counting cost by gas meter, commerce and trade clearing in actual use, can not adapt to simultaneously and prevent pipe leakage, prevent the premeditated needs of work such as water and using water wisely of stealing of a few peoples.For these reasons, many in recent years units begin to develop the less water meter product of initiating flow various in style, be called " anti-leakage water meter " traditionally, as the patent No. be: 200420010580.4, name is called " micro starting flow water meter " and is in this type of water meter more representative a kind of.All have tangible antidrip effect though this type of anti-leakage water meter is compared with conventional water meter,, cause the majority in this type of technology can not apply more because of it exists such as complex structure, problem such as cost is higher, maintenance difficulty is bigger.
Summary of the invention
Purpose of the present invention provides at existing weak point in the above-mentioned prior art just that a kind of structure is more simple, reasonable, antidrip is effective, and is convenient to the water meter with micro starting flow checking, install and keep in repair.
Purpose of the present invention can realize by following technique measures:
Water meter with micro starting flow of the present invention comprises common standard water meter integral body, a turn of tidal stream device is installed in the tube chamber of the water inlet pipe mouth of common standard water meter, described turn of tidal stream device comprise and common standard water meter water inlet pipe mouth inwall between the tubular shell that combines in the stationary fit mode, two chambeies before and after the tube chamber of this tubular shell is separated into by the annular shoulder that processes in its tube chamber, and offer the normal apopore that is communicated with the water meter inner chamber on the tube wall of its back segment tube chamber; In its back segment tube chamber, the piston type valve body is installed; Be sleeved on outer pressure spring of valve body and the spool that is installed in the body cavity; Be processed with a plurality of miniflow inlet openings that are connected with body cavity on the end face that meets water of described valve body; Be provided with a shaft orientation flowing channel in the described spool, the end of runner is by the intracavity inter-connection of miniflow mozzle and water meter guide shell, and the front end of runner is provided with flowrate control valve.
Sealing surface between the annular shoulder that is provided with in valve body end facing water of piston type described in the present invention and the tubular shell tube chamber is the conical ring structure that cooperatively interacts, and the sealing mating surface also can be spherical structure; Described pressure spring is fitted between the external ring edge of establishing shoulder and spool end of plunger valve, the connecting thread spinning that processes on the ring edge periphery of spool by its end is in the tubular shell rear end, and the piston type valve body is fitted in the annular shoulder place that processes in the tubular shell tube chamber by pressure spring.
Flowrate control valve described in the present invention comprises the taper mouth of pipe that is arranged on runner inflow point, the closure plate that is arranged in the valve ball of spool chamber and is encapsulated in the spool chamber water inlet, is processed with the miniflow inlet opening of aperture less than the valve ball diameter on this closure plate.
Principle of work of the present invention is as follows:
When current are very little (water swivel is in when dripping opening), because its flow is minimum, can't open the piston type valve body, can only enter spool chamber by the miniflow inlet opening that processes on the spool water inlet end closure plate, pass the crescent space on valve ball and cylinder bodily form spool chamber top and enter the spool runner, flow into water meter guide shell inner chamber via the miniflow mozzle, because this miniflow mozzle is the minimum mozzle of diameter; The small current that the enter mode with high-speed jet can be injected directly in the water meter turbine chamber, and then the drive impeller rotation, reach the purpose of " micro starting flow, effectively metering ".When current are big when using water state (water swivel be in normal), along with the surge that enters flow in the valve pocket, valve ball enters the taper mouth of pipe place of spool runner rapidly under the impact force of water flow effect, and rapidly with the shutoff of spool runner water inlet, current can't be passed through.Increasing along with flow of inlet water, under the effect of pressure reduction, current overcome the resistance of pressure spring, promote the piston type valve body and do horizontal shift backward, the sealing surface of itself and annular shoulder is broken away from, current just can enter the water meter inner chamber by the apopore (the normal apopore of turn of tidal stream device) that is provided with on annular channel between piston type valve body and annular shoulder and the tubular shell tube wall, make water meter enter the routine work state.
When the flow of water meter is reduced to small numerical value, under the effect of pressure reduction, the piston type valve body under the effect of pressure spring with rapid return, and shutoff breaks away from the taper mouth of pipe under the effect of valve ball at gravity at the taper mouth of pipe place of spool runner, and the bottom of falling back to valve pocket, when this moment, service pipe was in the water clock state, water meter will be in the micro starting flow state, and measures.
The present invention and the most frequently used D
NTechnical indicator between the 15 rotary wind type cold-water meters (B level, new table) is compared as follows table (Q is the actual flow of water meter, flux unit L/h):
Water meter of the present invention not only can begin to carry out effective water consumption measurement under the situation of very little at actual flow (being far smaller than the initiating flow of common water meter), and can be conventional flow at the actual flow of water meter the time, be converted to the normal water supply state rapidly, can guarantee that the resistance of water meter does not exceed the national Specification value.
In specific design, the water meter micro starting flow is the micrometeor (the concrete setting value in mozzle aperture) of metering effectively, can determine according to the actual conditions of different size water meter.But must guarantee: when minute water stream passes through the turn of tidal stream device, valve body must be in sealing state, promptly close the normal water delivering orifice of turn of tidal stream device, that is to say that pressure spring must have certain decrement in advance (force of compression), determining of its concrete data, should rely on the pressure difference of practical measurement corresponding to flow QK in parallel, this numerical value should accurately be measured, otherwise may increase the water meter resistance, and when water pipe pressure is low, influence the normal water of resident.
Selecting for use of valve ball material is preferably pottery among the present invention, can be such as following conventional ceramic, zirconia ZrO
2, silicon nitride Si
3N
4, silit SiC, aluminium oxide Al
2O
3Etc. in the several materials any one.Its Corrosion Protection is good, polluted water never, and technical specification is complete, and precision is enough, and is cheap.
Description of drawings
Fig. 1 is that master of the present invention cuts open figure.
Fig. 2 is the A-A cut-open view of Fig. 1.
Fig. 3 is that the master of Fig. 1 turn of tidal stream device cuts open figure (enlarged drawing).
1 is the common standard watermeter shell among the figure, the 2nd, the guide shell of common standard water meter, the 3rd, original normal inlet opening on the guide shell, the 4th, the normal apopore of turn of tidal stream device, the 5th, the tubular shell of turn of tidal stream device, the 6th, the water inlet (being turn of tidal stream device water inlet) after the repacking of common standard water meter, the 7th, common standard water meter turbine, the 8th, turn of tidal stream device miniflow mozzle, the 9th, the miniflow jetting hole that increases newly on the guide shell, the 10th, common standard water meter water delivering orifice, the 11st, common standard water meter air deflector apopore, the 12nd, the counting mechanism of common standard water meter and display device, the 13rd, the seal glass of common standard water meter and housing, the 14th, the piston type valve body of turn of tidal stream device, the 15th, the miniflow inlet opening on the piston valve body, the 16th, pressure spring, the 17th, the spool of turn of tidal stream device, the 18th, the mounting hole of spool (insert claw and make the spool rotation), the 19th, the taper mouth of pipe of spool, the 20th, the miniflow inlet opening on the spool closure plate, the 21st, the closure plate of spool, the 22nd, valve ball, the 23rd, the miniflow Discharging bent-tube of turn of tidal stream device, the 24th, spool chamber.
Embodiment
The present invention describes in further detail below with reference to embodiment (accompanying drawing):
As shown in Figure 1, 2, 3, water meter with micro starting flow of the present invention comprises common standard water meter integral body, in the tube chamber of the water inlet pipe mouth 6 of common standard water meter, a turn of tidal stream device is installed, described turn of tidal stream device comprise and common standard water meter water inlet pipe mouth inwall between the tubular shell 5 that combines in the stationary fit mode, two chambeies before and after the tube chamber of this tubular shell 5 is separated into by the annular shoulder that processes in its tube chamber, and offer the normal apopore 4 that is communicated with the water meter inner chamber on the tube wall of its back segment tube chamber; In its back segment tube chamber, piston type valve body 14 is installed, is sleeved on the pressure spring 16 outside the valve body and is installed on spool 17 in the body cavity; Be processed with a plurality of miniflow inlet openings 15 that are connected with body cavity on the end face that meets water of described valve body 14; Be provided with one in the described spool 17 and ask runner, the end of runner is by the intracavity inter-connection of the miniflow jetting hole that processes in miniflow mozzle 8 and the water meter water conservancy diversion letter 29 with the water meter guide shell, and the front end of runner is provided with flowrate control valve; Described pressure spring 16 is contained between the ring edge of piston type valve body 14 peripheral hardware shoulders and spool 17 ends, the connecting thread spinning that processes on the ring edge periphery of spool 17 by its end is in tubular shell 5 rear ends, and piston type valve body 14 is fitted in the annular shoulder place that processes in the tubular shell tube chamber by pressure spring 16; Sealing surface between the annular shoulder that is provided with in described piston type valve body 14 end facing waters and the tubular shell tube chamber is the conical ring structure that cooperatively interacts; Flowrate control valve described in the present invention comprises the taper mouth of pipe 19 that is arranged on runner inflow point, the valve ball 22 that is arranged in spool chamber 24 and the closure plate 21 that is encapsulated in the spool chamber water inlet, is processed with the miniflow inlet opening 20 of aperture less than the valve ball diameter on the nuclear closure plate 21.
The present invention does not almost completely change the physical dimension of common standard water meter, only sets up one " turn of tidal stream device " in the tube chamber of the water inlet pipe mouth of water meter, and processes a miniflow jetting hole 9 that is used to connect miniflow mozzle 8 at water meter guide shell 2 and get final product.
Out-of-date (promptly table back pipeline is very tight in the anhydrous circulation of water meter for water meter of the present invention, and whole water valve closings), as shown in Figure 3, valve ball 22 is in the bottom of spool chamber 24 in action of gravity, and piston type valve body 14 is being pressed on the sealing surface of annular shoulder under the effect of pressure spring 16.
When water meter have less than the circulation of the minute water of Qw out-of-date; 14 is motionless, and 22 is also motionless, and current are through 6 → 15 → 20 → 24 → 19 → 23 → 8 → 9 → 7 → 11 → 10 by water meter, and the impeller 7 of water meter does not rotate, and the counting mechanism and the indication mechanism of water meter do not have information.
When the water meter actual flow more than or equal to Qw during, that is: during QK＞Q 〉=Qw, (for D less than QK
NWhen 15 water meters, 3L/h＞Q 〉=0.5L/h), 14 is motionless, and 22 is also motionless, and current are still through 6 → 15 → 20 → 24 → 19 → 23 → 8 → 9 → 7 → 11 → 10 by water meter, but this moment water meter impeller 7 begin rotation, 12 begin action.Root root GB of the present invention regulation is to promote consciousness of saving water, with this moment the water meter error adjust into bigger on the occasion of, urge the water user in time to repair leakage, be sure not water steathily, otherwise the water user can suffer extra loss economically.
When the actual tap water flow of water meter more than or equal to QK during less than Qs, promptly during Qs＞Q 〉=QK, 14 begin to ask and move right, 4 beginning water flowings, but 22 still do not move.The current situation of this moment is:
The miniflow mozzle that is the turn of tidal stream device is in state in parallel with normal water delivering orifice.Set this mechanism and be when reducing that hydraulic pressure is very low before error in dipping and the assurance table, reduce the resistance of water meter as far as possible, the water user can use tap water as much as possible.
When the actual flow of water meter more than or equal to Qs (to D
NWhen 15 water meters, Q 〉=9L/h), 22 are dashed by current, enter 19, and because of differential water pressures before and after it blocks 19 greatly, current are blocked.At this moment, 14 by the promotion of the differential water pressures before and after it, and 16 are compressed, and continue to ask right motion, further open normal apopore 4.The current of this moment are through 6 → 4 → 3 → 7 → 11 → 10 and by water meter, 7 normal rotation, 12 operate as normal, the normal operating conditions of promptly getting back to the common standard water meter.Because spring 16 is soft types, so 14 to the right amount of movements will suitably change with the size of current, make 4 open degree adapt to the water requirement automatically, can not impact the tap water user.
The present invention is the strong instrument that water user and water undertaking carry out fair commerce and trade clearing, to the conserve water resource, impels the work such as the premeditated water steathily of some people of in time repairing with Louing and prevent of pipeline, valve also can play a role.
The present invention is mainly used in D
N15, D
N20, D
N25, D
N40, D
NSpecifications such as 50 from last water water meter, also can be applicable to other similar applications.
Claims (1)
1. water meter with micro starting flow, it comprises common standard water meter integral body, it is characterized in that: a turn of tidal stream device is installed in the tube chamber of the water inlet pipe mouth (6) of common standard water meter, described turn of tidal stream device comprise and common standard water meter water inlet pipe mouth inwall between the tubular shell (5) that combines in the stationary fit mode, two chambeies before and after the tube chamber of this tubular shell is separated into by the annular shoulder that processes in its tube chamber, and offer the normal apopore (4) that is communicated with the water meter inner chamber on the tube wall of its back segment tube chamber; Piston type valve body (14) is installed in its back segment tube chamber, is sleeved on the pressure spring (16) outside the valve body and is installed on spool (17) in the body cavity; Be processed with a plurality of miniflow inlet openings (15) that are connected with body cavity on the end face that meets water of described valve body (14); Be provided with a shaft orientation flowing channel in the described spool, the end of runner links by the inner chamber of miniflow mozzle (8) with water meter guide shell (2), and the front end of runner is provided with flowrate control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510017921XA CN100381793C (en) | 2005-08-25 | 2005-08-25 | Water meter with micro starting flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510017921XA CN100381793C (en) | 2005-08-25 | 2005-08-25 | Water meter with micro starting flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1731104A CN1731104A (en) | 2006-02-08 |
| CN100381793C true CN100381793C (en) | 2008-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510017921XA Expired - Fee Related CN100381793C (en) | 2005-08-25 | 2005-08-25 | Water meter with micro starting flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100381793C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848903A (en) * | 2014-02-18 | 2015-08-19 | 伊利诺斯工具制品有限公司 | Water flow sensing component, water flow sensor and water heater equipped with water flow sensor |
| CN106679754B (en) * | 2017-01-10 | 2019-06-28 | 付士宏 | Vapour-pressure type water meter |
| CN107551646A (en) * | 2017-10-19 | 2018-01-09 | 陈英傲 | Anti-leakage type intelligence backwash filter and control method |
| CN111653956B (en) * | 2020-05-27 | 2021-11-26 | 国网甘肃省电力公司白银供电公司 | High-efficient cooling heat abstractor of cladding type electric power cabinet |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2650075Y (en) * | 2003-09-15 | 2004-10-20 | 北京慧怡工贸有限责任公司 | Drip-proof water meter with regulating function |
| CN2663935Y (en) * | 2003-12-17 | 2004-12-15 | 李英涛 | High-precision water meter |
| CN2687618Y (en) * | 2004-04-09 | 2005-03-23 | 刘宪武 | Micro flow pickup water meter |
| CN2819180Y (en) * | 2005-08-25 | 2006-09-20 | 刘宪武 | Microflow pickup watermeter |
-
2005
- 2005-08-25 CN CNB200510017921XA patent/CN100381793C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2650075Y (en) * | 2003-09-15 | 2004-10-20 | 北京慧怡工贸有限责任公司 | Drip-proof water meter with regulating function |
| CN2663935Y (en) * | 2003-12-17 | 2004-12-15 | 李英涛 | High-precision water meter |
| CN2687618Y (en) * | 2004-04-09 | 2005-03-23 | 刘宪武 | Micro flow pickup water meter |
| CN2819180Y (en) * | 2005-08-25 | 2006-09-20 | 刘宪武 | Microflow pickup watermeter |
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| Publication number | Publication date |
|---|---|
| CN1731104A (en) | 2006-02-08 |
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