CN1300557C - Rotary wing flow sensor - Google Patents
Rotary wing flow sensor Download PDFInfo
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- CN1300557C CN1300557C CNB2004101024974A CN200410102497A CN1300557C CN 1300557 C CN1300557 C CN 1300557C CN B2004101024974 A CNB2004101024974 A CN B2004101024974A CN 200410102497 A CN200410102497 A CN 200410102497A CN 1300557 C CN1300557 C CN 1300557C
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- flow sensor
- impeller
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- rotary wing
- water
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Abstract
The present invention relates to a rotary wing type flow sensor. The present invention is characterized in that the flow sensor is composed of an upper cover of the flow sensor and a detachable meter core of the flow sensor, wherein the upper cover of the flow sensor is connected with the shell body of the flow sensor; the detachable meter core of the flow sensor comprises an impeller, an impeller cover, an impeller shell and a jewel bearing component; the detachable meter core of the flow sensor is detachably connected with the upper cover of the flow sensor; the meter core of the flow sensor, the upper cover of the flow sensor and the shell body of the flow sensor are respectively and hermetically connected by sealing rings to form a double sealing structure; the sealing rings can be sealed on a water outlet of the detachable meter core of the flow sensor. The present invention has the advantage that the metering precision of a calorimeter is stable and reliable; the present invention resists high pressure which is equal to or smaller than 3.5MPa, and resists the temperature of 95 DEG C; the present invention has high metering precision, achieves the precision index of a two-stage meter of the calorimeter of national standard (CJ128-2000), and can reliably and stably work under high temperature and high pressure environments.
Description
(1) technical field:
The present invention relates to a kind of heat quantity flow sensor, particularly a kind of rotary wing flow sensor that is applicable under High Temperature High Pressure and the abominable water quality of continuous flow.
(2) background technology:
China's central heating heating charge gage work is started late, and the application of calorimeter is scarcely out of swaddling-clothes.Domestic manufacturer produce the flow sensor of calorimeter all adopt the ordinary hot water ga(u)ge, because the heating network overwhelming majority or legacy system, even the heating network of newly-built dwelling house though there are a considerable amount of systems to adopt two-tube heat supply in parallel, does not use the segmentation heat supply yet.The calorimeter of low like this floor not only bears gauge pressure, bears the head of entire building simultaneously again; Water hammer effect when adding the heating system start and stop can cause flow sensor superpressure seepage, and serious meeting causes the flow sensor explosion, causes heavy losses to the user.
As everyone knows, with the implementation of national central heating meterage system, calorimeter is confirmed to be a kind of legal instrument of central heating metering of necessity.For the critical component flow sensor of forming calorimeter, because of it is operated under 60 ℃～95 ℃ high temperature (the high temperature modification working temperature can reach 150 ℃) and the 1.6MPa high pressure (high temperature modification calorimeter working pressure reaches 2.5MPa), so the requirement of the material of flow sensor, technology, processing is very high.The calorimeter of domestic production at present, flow sensor is to use the ordinary hot water ga(u)ge basically, and the needs of calorimeter can not be satisfied in its performance source, have caused defectives such as metering is inaccurate, seepage, obstruction.
(3) summary of the invention:
The objective of the invention is to design a kind of rotary wing flow sensor, it is overcome the shortcoming of above-mentioned existing flow sensor, is a kind of flow sensor that is applicable to High Temperature High Pressure and the abominable water quality of continuous flow.
Technical scheme of the present invention: a kind of rotary wing flow sensor, comprise that the flow sensor housing that has water inlet and water delivering orifice that is connected with pipeline, the flow sensor loam cake that is connected with the flow sensor housing and dismountable flow sensor watch core constitute, said dismountable flow sensor watch core comprises impeller, impeller shaft, impeller cover, impeller housing and jewel bearing assembly, impeller places between impeller cover and the impeller housing according to jewel bearing assembly up and down, between dismountable flow sensor watch core and flow sensor loam cake also for removably connecting; Between flow sensor watch core and flow sensor loam cake and flow sensor housing respectively according to the O-ring seal formation double sealing structure that is tightly connected, O-ring seal is packaged in the water delivering orifice of dismountable flow sensor watch core, it is characterized in that dismountable flow sensor watch core according to the limited water inlet that is assemblied in the flow sensor housing of centring ring, its water inlet front end is equipped with filter screen.
The water inlet of above-mentioned said impeller housing by two trapezoidal water inlets with constitute, two trapezoidal water inlets and between divide the water plate for wedge shape.
The impeller housing place water delivering orifice of above-mentioned said dismountable flow sensor watch core is for geometrical curve and prolong the two sides that the curved surface that comes out with the angled hypothetical axis direction sports envelope of water delivering orifice is done water delivering orifice, and there is the special-shaped groove of asymmetric placement O-ring seal at the water delivering orifice place.
Above-mentioned said flow sensor loam cake is made by metal material, and said metal material can be got copper material.
The O-ring seal that above-mentioned said O-ring seal is made by teflon and silicon rubber.
The above-mentioned said impeller shaft that is contained on the impeller is made by high rigidity unoxidizable alloy steel.
Above-mentioned said flow sensor housing and flow sensor loam cake, chromium plating or Nickel Plating Treatment are done in its surface, are forged by contour forging technique and make.
Above-mentioned said impeller, impeller cover, impeller housing and filter screen are made by high performance plastics PP or PPE.
Superiority of the present invention is: 1, the related calorimeter measuring accuracy of the present invention is reliable and stable, high pressure resistant at≤3.5MPa (the withstand voltage 1.6MPa of general homemade hot water flow meter, part import calorimeter with flow sensor can anti-2.5Mpa high pressure) and high temperature (95 ℃), has higher measuring accuracy, reached the precision index of calorimeter national standard (CJ128-2000) secondary table, can be under high temperature and high pressure environment reliable and stable work; 2, relatively poor at heat supply heating hot water water quality, result in blockage easily, disadvantage such as fouling, the present invention's disassembly, cleaning easily do not influence flow metering after reinstalling, need not carry out flow accuracy verification adjustment, greatly facilitate the user; 3, volume is small and exquisite, and the length of DN20 specification only is 110mm, than the short 20～85mm of ordinary hot water ga(u)ge; 4, the present invention's science of drawing materials uses metal material to do flow sensor housing 1 and flow sensor loam cake 2, adds the O-ring seal of being made by teflon and silicon rubber, makes flow sensor non-leakage under the high pressure of 3.5MPa; 5, structure is ingenious rationally, the flow through turbulent flow of flow sensor current and the probability of laminar flow that reduce and reduce, improved the flow metering precision of flow sensor so largely, also improve simultaneously repeatability, repeatability and the stability of measuring accuracy, fully guaranteed the pinpoint accuracy of flow sensor metering.
(4) description of drawings:
Accompanying drawing 1 is the one-piece construction synoptic diagram of the related a kind of rotary wing flow sensor of the present invention.
Accompanying drawing 2 is an A portion enlarged diagram among Fig. 1.
Accompanying drawing 3 is the impeller housing 5 place's water inlet plan structure synoptic diagram in the related a kind of rotary wing flow sensor of the present invention.
Accompanying drawing 4 is the impeller housing 5 places water delivering orifice side-looking structural representation in the related a kind of rotary wing flow sensor of the present invention.
Accompanying drawing 5 is the impeller housing 5 fuisw rib 5b of the place cross section structure synoptic diagram in the related a kind of rotary wing flow sensor of the present invention.
Accompanying drawing 6 is the user mode structural representation after the magneto-dependent sensor assembly 18 at related a kind of rotary wing flow sensor of the present invention and flow sensor top makes up.
Wherein: 1 is the flow sensor housing, 2 is the flow sensor loam cake, 2a is the ring-shaped groove that has on the flow sensor loam cake 2, and 3 is impeller, and 4 is impeller cover, 5 is impeller housing, 5a is a circumferential claw on the impeller housing 5, and 5b is the fuisw rib on the impeller housing 5, and 6 is O-ring seal, 7 is O-ring seal, 8 is the water delivering orifice place O-ring seal of impeller housing 5, and 9a is the jewel in the bearing assembly, and 9b is a bearing, 10 is filter screen, 11 is centring ring, and 12 is the trapezoidal water inlet of impeller housing 5, and 13 is another trapezoidal water inlet of impeller housing 5,14 is that wedge shape between two trapezoidal water inlets 12 and 13 is divided the water plate, 15 is holding screw, and 16 is the water delivering orifice of impeller housing 5, and 18 is the magneto-dependent sensor assembly, 19 is the water inlet that is connected with pipeline, and 20 is the water delivering orifice that is connected with pipeline.
(5) embodiment:
Embodiment: a kind of rotary wing flow sensor (seeing Fig. 1-6), comprise that the flow sensor housing 1 that has water inlet 19 and water delivering orifice 20 that is connected with pipeline, the flow sensor loam cake 2 that is connected with flow sensor housing 1 and dismountable flow sensor watch core constitute, said dismountable flow sensor watch core comprises impeller 3, impeller cover 4, impeller housing 5 and jewel bearing assembly 9, impeller 3 places between impeller cover 4 and the impeller housing 5 according to jewel bearing assembly 9 up and down, and 2 of dismountable flow sensor watch core and flow sensor loam cakes are also for removably connecting; 1 of flow sensor watch core and flow sensor loam cake 2 and flow sensor housing are respectively according to O-ring seal 6, the O-ring seal 7 formation double sealing structure that is tightly connected, O-ring seal 8 is packaged in the water delivering orifice of dismountable flow sensor watch core, it is characterized in that dismountable flow sensor watch core according to the centring ring 11 limited water inlets that are assemblied in flow sensor housing 1, its water inlet front end is equipped with filter screen 10 (see figure 1)s.
Above-mentioned said dismountable flow sensor watch core shell body is to constitute according to impeller cover 4 and impeller housing 5, have flap on the impeller cover 4, the flap normal section is a right-angle triangle, the stream interface that meets water is the inclined-plane, and the bus of flap and flow sensor horizontal axis have a certain degree, have fuisw rib 5b (see figure 5) on the impeller housing 5, the impeller housing 5 that has a fuisw rib 5b and the impeller cover 4 that the band flap is arranged are according to location lug corresponding on it and the locating slot watch core shell body (see figure 1) that is assembled.
Removably connecting of 2 of above-mentioned said dismountable flow sensor watch core and flow sensor loam cakes is circumferentially to have the claw 5a (see figure 2) that is assembled on ring-shaped groove 2a and the impeller housing 5 by having on the flow sensor loam cake 2.
The water inlet of above-mentioned said impeller housing 5 is made of two trapezoidal water inlets 12 and 13, divides water plate 14 for wedge shape between the two trapezoidal water inlets 12 and 13, can change the water inlet 12 bottom (see figure 3)s that holding screw 15 highly is installed on impeller housing 5 according to rotation.
The holding screw 15 that above-mentioned said Yi the rotation that is installed on water inlet 12 bottoms of impeller housing 5 changes height is hexagonal rotary screws in the stainless steel.
The fuisw rib 5b that has on the above-mentioned said impeller housing 5 can have 4, and the normal section of its fuisw rib 5b is a right-angle triangle, and the stream interface that meets water is the inclined-plane (see figure 5).
Jewel bearing assembly 9 in above-mentioned said dismountable flow sensor watch core is made up of ruby bearing 9a and plastic sleeve 9b, and mounted in pairs is on impeller cover 4 and impeller housing 5 respectively.
Above-mentioned said flow sensor loam cake 2 is made by metal material, and said metal material can be got copper material.
The O-ring seal that above-mentioned said O-ring seal 6 and O-ring seal 7 are made by teflon and silicon rubber,
The above-mentioned said impeller shaft that is contained on the impeller 3 is made by high rigidity unoxidizable alloy steel.
Above-mentioned said flow sensor housing 1 and flow sensor loam cake 2, chromium plating or Nickel Plating Treatment are done in its surface, are forged by contour forging technique and make.
Above-mentioned said impeller 3, impeller cover 4, impeller housing 5 and filter screen 10 are made by high performance plastics PP or PPE.
The above-mentioned said flow sensor loam cake 2 of being with branch flanges such as circumference that has, its cover flange place is drilled with seal and uses the hole, and 45 ° of diagonal bars are arranged on the flow sensor housing 1, is drilled with seal on the diagonal bar and uses the hole.
The principle of work of the present invention and the course of work are: the novel metering calorimeter that is mainly used in the heating central heating of the present invention also can be used for the measurement of hot water system.Fig. 6 as can be known, characterize the mechanical rotation of the impeller 3 of flow signal, by the magnet ring at impeller top and the magneto-dependent sensor assembly 18 coupling outputs at flow sensor top, through the flow signal change-over circuit, changes of magnetic field with magnet ring coupling rotation, change the electric signal of digital quantity into, export the calorimeter integrator to, simultaneously the temperature sensor of being made up of PT1000 exports the water temperature of heating pipeline import and export to the calorimeter integrator.The calorimeter integrator carries out integral operation to input flow rate signal and temperature signal, calculates the heat (using heat) that the user consumes after the correction.The calorimeter integrator is also finished functions such as demonstration, warning, fault, diagnosis simultaneously.Because of the flow sensor watch core is a demountable structure, can integrally the flow sensor watch core be separated with flow sensor housing 1, carry out watch core cleaning, adjustment and replacing, after ressembling, do not influence the measuring accuracy of flow sensor.
Wherein: be installed on the holding screw 15 of water inlet 12 bottoms of impeller housing 5, rotary screw can change the height (adjusting flow) that screw screws out water inlet 12 end faces, and its throttling action is adjusted the flow accuracy of flow sensor and the slope of rating curve.
Conventional filter screen 10 places water inlet 19 places.Filter screen 10 plays filtering and stops the effect of the impurity in the heat supply pipeline, and the dependable flow sensor can operate as normal under abominable water quality.
Centring ring 11 restriction impeller housing 5 have guaranteed that along its axial rotation the flow accuracy of reinstalling after the dismounting of flow sensor watch core is constant.
The O-ring seal 8 that is installed in the watch core water delivering orifice place of impeller cover 4, impeller housing 5 compositions places in the special-shaped groove of asymmetric O-ring seal, makes solid flooding can not leak into water delivering orifice from the passage beyond the watch core, has guaranteed metering precision.
Jewel bearing assembly 9a and 9b have guaranteed the sensitivity of impeller 3 and the stability under the High Temperature High Pressure, reliability, have also improved serviceable life simultaneously.
The double sealing structure that 1 O-ring seal that has respectively 6 of flow sensor watch core and flow sensor loam cake 2 and flow sensor housing, O-ring seal 7 constitute can make flow sensor non-leakage under the high pressure of 3.5MPa.
Flow sensor loam cake and flow sensor housing can carry out seal after being assembled into flow sensor and debugging.With prevent arbitrarily dismounting cause mishap.
Claims (9)
1, a kind of rotary wing flow sensor, comprise that the flow sensor housing that has water inlet and water delivering orifice that is connected with pipeline, the flow sensor loam cake that is connected with the flow sensor housing and dismountable flow sensor watch core constitute, described dismountable flow sensor watch core comprises impeller, impeller shaft, impeller cover, impeller housing and jewel bearing assembly, impeller places between impeller cover and the impeller housing according to jewel bearing assembly up and down, between dismountable flow sensor watch core and flow sensor loam cake also for removably connecting; Between flow sensor watch core and flow sensor loam cake and flow sensor housing respectively according to the O-ring seal formation double sealing structure that is tightly connected, O-ring seal is packaged in the water delivering orifice of dismountable flow sensor watch core, it is characterized in that dismountable flow sensor watch core according to the limited water inlet that is assemblied in the flow sensor housing of centring ring, its water inlet front end is equipped with filter screen.
2, a kind of rotary wing flow sensor according to claim 1 is characterized in that the water inlet of described impeller housing is made of two trapezoidal water inlets, divides the water plate for wedge shape between the two trapezoidal water inlets.
3, a kind of rotary wing flow sensor according to claim 1, the two sides that the impeller housing place water delivering orifice that it is characterized in that described dismountable flow sensor watch core is done water delivering orifice for the curved surface that comes out with the angled hypothetical axis direction sports envelope of geometrical curve and edge and water delivering orifice, there is the special-shaped groove of asymmetric placement O-ring seal at the water delivering orifice place.
4, a kind of rotary wing flow sensor according to claim 1 is characterized in that described flow sensor loam cake made by metal material.
5, a kind of rotary wing flow sensor according to claim 4 is characterized in that described metal material gets copper material.
6, a kind of rotary wing flow sensor according to claim 1 is characterized in that the O-ring seal that described O-ring seal is made by teflon and silicon rubber.
7, a kind of rotary wing flow sensor according to claim 1 is characterized in that the described impeller shaft that is contained on the impeller made by high rigidity unoxidizable alloy steel.
8, a kind of rotary wing flow sensor according to claim 1 is characterized in that described flow sensor housing and flow sensor loam cake, and chromium plating or Nickel Plating Treatment are done in its surface, is forged by contour forging technique and makes.
9, a kind of rotary wing flow sensor according to claim 1 is characterized in that described impeller, impeller cover, impeller housing and filter screen made by high performance plastics PP or PPE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101024974A CN1300557C (en) | 2004-12-28 | 2004-12-28 | Rotary wing flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101024974A CN1300557C (en) | 2004-12-28 | 2004-12-28 | Rotary wing flow sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1632472A CN1632472A (en) | 2005-06-29 |
| CN1300557C true CN1300557C (en) | 2007-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004101024974A Expired - Fee Related CN1300557C (en) | 2004-12-28 | 2004-12-28 | Rotary wing flow sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN1300557C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650541A (en) * | 2011-02-28 | 2012-08-29 | 深圳威胜科技有限公司 | Signal transmission and metering algorithm for impeller magnetic inductive basic water and heat meter |
| CN102506946B (en) * | 2011-10-28 | 2014-07-02 | 睿能太宇（沈阳）能源技术有限公司 | Novel mechanical anti-blocking type flow meter |
| CN104296893A (en) * | 2014-11-04 | 2015-01-21 | 林允杜 | Heat meter resistant to high voltage and fast in measuring progress |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19900774A1 (en) * | 1999-01-12 | 2000-07-13 | Abb Patent Gmbh | Heat meter with volume measurement unit has temperature sensor and back-flow sensing device as well as cable connection arranged in a measurement chamber of volume measurement unit within heat meter |
| CN2563553Y (en) * | 2002-08-28 | 2003-07-30 | 长春热华科技开发有限公司 | Civil heat flowmeter sensor |
| CN2645062Y (en) * | 2003-09-24 | 2004-09-29 | 蒋韵坚 | Special flow sensor for heat meter |
-
2004
- 2004-12-28 CN CNB2004101024974A patent/CN1300557C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19900774A1 (en) * | 1999-01-12 | 2000-07-13 | Abb Patent Gmbh | Heat meter with volume measurement unit has temperature sensor and back-flow sensing device as well as cable connection arranged in a measurement chamber of volume measurement unit within heat meter |
| CN2563553Y (en) * | 2002-08-28 | 2003-07-30 | 长春热华科技开发有限公司 | Civil heat flowmeter sensor |
| CN2645062Y (en) * | 2003-09-24 | 2004-09-29 | 蒋韵坚 | Special flow sensor for heat meter |
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| Publication number | Publication date |
|---|---|
| CN1632472A (en) | 2005-06-29 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Quanzhou Chiyoung Instrument Co., Ltd. Assignor: Jiang Yunjian Contract fulfillment period: 2009.8.26 to 2014.9.23 contract change Contract record no.: 2009350000200 Denomination of invention: Rotary wing flow sensor Granted publication date: 20070214 License type: Exclusive license Record date: 2009.9.1 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.8.26 TO 2014.9.23; CHANGE OF CONTRACT Name of requester: QUANZHOU CHIYOUNG ELECTROMECHANICAL CO., LTD. Effective date: 20090901 |
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| DD01 | Delivery of document by public notice |
Addressee: Lu Feng Document name: Notification of Passing Examination on Formalities |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070214 Termination date: 20131228 |