CN102840357B - Flow measurement and control integrated device - Google Patents
Flow measurement and control integrated device Download PDFInfo
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- CN102840357B CN102840357B CN2012103017503A CN201210301750A CN102840357B CN 102840357 B CN102840357 B CN 102840357B CN 2012103017503 A CN2012103017503 A CN 2012103017503A CN 201210301750 A CN201210301750 A CN 201210301750A CN 102840357 B CN102840357 B CN 102840357B
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Abstract
The invention discloses a flow measurement and control integrated device. The flow measurement and control integrated device comprises a valve body, a valve core and a valve rod. The valve body comprises a water inlet pipe, a valve cavity body, a water outlet pipe and a valve cavity cover, wherein the valve cavity body is arranged between the water inlet pipe and the water outlet pipe. The valve cavity body and the valve cavity cover form a valve cavity with an opening on the top, and the valve core is arranged inside the valve cavity. The valve core is provided with a through hole connected with the water inlet pipe and the water outlet pipe and comprises a coil, a first electrode, a second electrode and a lead, while the first electrode and the second electrode are arranged on two ends of the through hole symmetrically. The lead is of a reversed-fork shape, two ends of a fork head of the lead are respectively connected with the first electrode and the second electrode, and a fork rod of the lead is extended out from the valve rod. The valve rod is arranged on the top of the valve core and extends out from the valve cavity which is provided with the opening on the top and composed of the valve cavity body and the valve cavity cover, and a seal ring is arranged between the valve rod and the valve cavity cover. The flow measurement and control integrated device integrates a flow sensor and a control valve, and has the advantages of being simple and compact in structure, small in size, low in cost, convenient to install and the like.
Description
Technical field
The present invention relates to flowmeter and control valve field, the fields such as particularly heat metering, water metering, Sewage metering, heating energy-saving, room temperature control.The present invention is applicable to family with flow measurement and control fields such as calorimeter, cold meter, water meter, sewage tables, is specially adapted to the products such as family balance sheet, balance calorimeter, and method for arranging provided by the present invention also is applicable to the general field of other flow controls.
Background technique
Flowmeter is a class flow measurement instrument,, by the principle of measurement classification, has: electromagnetic flowmeter, ultrasonic flowmeter, vortex-shedding meter, rotameter, thermal mass flow meter, Coriolis mass flowmeter etc.
Electromagnetic flowmeter is a kind of flow measurement instrument based on the Faradic electricity magnetic induction principle, its basic principle is: when the fluid with conducting medium passes through magnetic field, the fluid cutting magnetic line, produce induced potential on the Vertical direction in magnetic field, the amplitude of induced potential and the flow velocity of fluid are directly proportional, thereby obtain the flow velocity of fluid, and then obtain the flow of fluid.In order to produce magnetic field, around sounding pipe, field coil is installed, fluid is passed in the magnetic field that produces, thereby produces induced potential in fluid,, in the both positive and negative polarity position of induced potential installing electrodes, can measure the size of induced potential.Electromagnetic flowmeter is widely used in flow measurement, have the advantages such as measuring accuracy is high, the linearity good, the interior nothing structure of sounding pipe part, antipollution thing.
Control valve is a class flow control device, mainly parts such as valve body, spool and valve rods, consists of, and valve rod promotes valve core movement, changes the circulation area size of runner, thereby controls flow.Control valve is pressed textural classification, has: ball valve, butterfly valve, gate valve etc.Ball valve is a kind of control valve of controlling flow to rotatablely move, and spool is spherical, and a through hole is arranged, and when Spool rotating, lead to the hole site changes thereupon, thereby changes the circulation area of runner, realizes flow control.
The realization of flow measurement and control in prior art, generally, by independently flowmeter and control valve form.Such as, flowmeter and control valve are connected on same pipeline, the flux signal that control valve records according to flowmeter, adjust the aperture of valve, thereby control flow.This independently collocation method, flowmeter and control valve will be installed respectively, complexity is installed in existence, large problem takes up room, in the narrow occasion in the spaces such as cabinet and hoistway, the method enforcement difficulty is large, cost is high, especially, in the application that needs meterage, easily by artificial destruction, thereby do not have anti-theft capability.This scheme is usually used in general occasions such as industry, and in specific occasion, with balance sheet, balance calorimeter etc., the method exists installs complicated, large, the problem such as cost is high, non-anti-theft that takes up room, so and inapplicable as the family of city central heating.
In order to solve the problem of heating field flow control, the method that flowmeter and control valve is installed on same housing is arranged also., because flowmeter and control valve are discrete in housing,, so this method has just solved installation question simply, still there is no to solve the problem large, that cost is high that takes up room.
Development along with the city central heating, invent a kind of instrument that can control in real time for heat flow, seem in heating energy-saving more and more important, the integrated heat supply flow control instrument that particularly provide a kind of and be convenient to install, volume is little, cost is low, meet the usage requirement in this field, become and solve one of energy-conservation important aspect of central heating system.In prior art, yet there are no the integrated arrangement method of flowmeter and the complete combination of control valve.
In sum, mainly there are following two problems in the flow measurement of prior art and control gear:
1) method no matter independently, or discrete method, volume is large and cost is high;
2) method independently, need to install two parts, installs complicated and can't be effectively antitheft.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of flow measurement is provided and controls integrated device.
Flow measurement and control integrated device comprise valve body, spool and valve rod; Valve body comprises intake pipe, valve chamber, outlet pipe, valve pocket lid, and valve chamber is between intake pipe and outlet pipe, and valve chamber and valve pocket lid form an open-topped valve pocket, and spool is arranged in valve pocket; Spool is provided with the through hole that connects intake pipe and outlet pipe, and spool comprises coil, the first electrode, the second electrode, lead-in wire; The first electrode, the second electrode are symmetrically distributed in the both sides inwall of through hole, go between as falling fork-shaped, and the jaw two ends of lead-in wire are connected with the first electrode, the second electrode respectively, and the fork arm of lead-in wire stretches out from valve rod; Valve rod is positioned at the spool top, from valve chamber and open-topped valve pocket of valve pocket lid composition, stretches out, and is provided with seal ring between valve rod and valve pocket lid.
Described coil comprises coil, lower coil, and upper coil is positioned at the top of valve core through hole, the below that lower coil is positioned at through hole.
Described spool also comprises magnetic core, and coil comprises coil, lower coil, and magnetic core is lower magnetic core, and upper coil is positioned at the top of valve core through hole, the below that lower coil is positioned at through hole, and lower coil is surrounded lower magnetic core.
Described spool also comprises magnetic core, and coil is upper coil, and magnetic core comprises magnetic core, lower magnetic core, and upper coil is positioned at the top of valve core through hole, and upper coil surrounds upper magnetic core, and lower magnetic core is positioned at the below of through hole.
Described spool (2) also comprises magnetic core, coil comprises coil (3), lower coil (4), magnetic core comprises magnetic core (5), lower magnetic core (6), upper coil (3) is positioned at the top of spool (2) through hole, the below that lower coil (4) is positioned at through hole, magnetic core (5) in upper coil (3) encirclement, lower coil (4) surround lower magnetic core (6).
The Vertical direction size in the through hole cross section of described spool is less than the substantially horizontal size.
Described valve rod be positioned at spool above or below, and and the spool one, spool and valve rod are same vertical rotary axle center, can horizontally rotate.
The manufactured materials of described valve body is plastics, copper, stainless steel, aluminum alloy or composite material; Described plastics are conductive plastic.
Described valve body is lined with metal screen layer;
The jaw of described lead-in wire is provided with temperature transducer.
The invention solves the problem that volume is large, cost is high, installation is complicated that prior art exists, improved simultaneously anti-theft capability.In prior art, mean of access is that flow measuring device and control gear are split in a housing, there are no with flow measuring device and the integrated device of control gear.The present invention is built in flow transducer in the spool of control valve, has increased simultaneously the length of intake pipe and the outlet pipe of control valve, so as the flow field of stabilized fluid, the measuring accuracy of raising flow transducer.The present invention, according to the characteristics of urban heat supplying pipe network, adopts electromagnetic induction principle to measure the flow velocity of fluid, has the advantages such as measuring accuracy is high, the linearity good, the interior nothing structure of sounding pipe part, antipollution thing.Control valve adopts the arrangement of similar ball valve, and spool is with through hole, and for the ease of the layout of sensor, spool design one-tenth of the present invention is cylindrical with through hole.Select suitable spool shape, sensor is arranged in spool, realize the integrated arrangement of flow measurement and control.The flow transducer of the present invention's electromagnetic induction principle of measurement used, be comprised of coil and electrode.Coil is arranged in the through hole above and below, and the electrode horizontal arrangement is in the both sides of through-hole wall, and its coil can further include magnetic core, in order to improve the intensity in magnetic field.For the ease of the layout of coil, the cross section of through hole is arranged to long-round-shape,, to dwindle the spacing of up and down, improves the intensity in magnetic field, reduces simultaneously the overall dimension of spool.
According to a further aspect in the invention, provide a kind of device of measuring bidirectional traffics, facilitated installation.Intake pipe of the present invention and outlet pipe adopt and are arranged symmetrically with, and spool and inner flow transducer also adopt and are arranged symmetrically with, and realize the bidirectional measurement of flow.Device provided by the present invention, water inlet and the direction of water outlet can be selected arbitrarily, with respect to prior art, the direction with water outlet of need not during installation to consider to intake, thus simplified installation.
According to a further aspect in the invention, provide a kind of measurement of heat flow to arrange, reduced heat flow and measured cost.The present invention in spool, further includes temperature transducer, and sensor signal is extremely outside by wire transmission, thereby records the temperature of fluid, and then obtains the heat of fluid.The present invention is built in temperature transducer and flow transducer in spool, and existing is that temperature transducer is independently split for prior art, has characteristics simple in structure, that cost is low.
Compared with prior art, the present invention has following beneficial effect:
1) flow measurement and control are integrated, and volume is little, and cost is low, is convenient to install;
2) flow measurement and control are integrated, are not easy by artificial destruction, and anti-theft capability is strong;
3) the spool built-in temperature sensor, realize calorimetric measurement, and is simple in structure, cost is low.
Certainly, arbitrary technological scheme of the present invention differs and all realizes surely above beneficial effect.
Description of drawings
Fig. 1 is flow measurement and the structural profile view of controlling integrated device;
Fig. 2 is flow measurement and the A-A face cross section view of controlling integrated device;
Fig. 3 is the described spool cross section view of embodiment 2;
Fig. 4 is the described spool cross section view of embodiment 3;
Fig. 5 is the described spool cross section view of embodiment 4;
In figure, intake pipe 1a, valve chamber 1b, outlet pipe 1c, body cap 1d, metal screen layer 1e, spool 2, upper coil 3, lower coil 4, upper magnetic core 5, lower magnetic core 6, the first electrode 7a, the second electrode 7b, valve rod 8, lead-in wire 9, seal ring 10, temperature transducer 11.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
Embodiment 1
Referring to Fig. 1 and Fig. 2, flow measurement and control integrated device comprise valve body, spool 2 and valve rod 8; Valve body comprises intake pipe 1a, valve chamber 1b, outlet pipe 1c, valve pocket lid 1d, and valve chamber 1b is between intake pipe 1a and outlet pipe 1c, and valve chamber 1b and valve pocket lid 1d form an open-topped valve pocket, and spool 2 is arranged in valve pocket; Spool 2 is provided with the through hole that connects intake pipe 1a and outlet pipe 1c, and spool 2 comprises coil, the first electrode 7a, the second electrode 7b, lead-in wire 9; The first electrode 7a, the second electrode 7b are symmetrically distributed in the both sides inwall of through hole, and lead-in wire 9 is for falling fork-shaped, and the jaw two ends of lead-in wire 9 are connected with the first electrode 7a, the second electrode 7b respectively, and the fork arm of lead-in wire 9 stretches out from valve rod 8; Valve rod 8 is positioned at spool 2 tops, from valve chamber 1b and open-topped valve pocket of valve pocket lid 1d composition, stretches out, and is provided with seal ring 10 between valve rod 8 and valve pocket lid 1d.Described spool 2 also comprises magnetic core, coil comprises coil 3, lower coil 4, and magnetic core comprises magnetic core 5, lower magnetic core 6, and upper coil (3) is positioned at the top of spool (2) through hole, the below that lower coil (4) is positioned at through hole, upper coil 3 surrounds upper magnetic core 5, and lower coil 4 is surrounded lower magnetic core 6.Intake pipe 1a and outlet pipe 1c can be circular pipe, include the standard thread that connects external pipe, in order to external pipe, be connected.Intake pipe 1a and outlet pipe 1c adopt symmetric design, and the direction of water inlet and water outlet can be selected arbitrarily, in order to install.Cylindrical valve pocket is arranged in valve body 1, and valve pocket communicates with the pipeline of intake pipe 1a and outlet pipe 1c.During assembling, spool 2 is installed first in valve pocket, then valve pocket lid 1d is installed, fixing with the sealing material sealing between valve pocket lid 1d and valve chamber 1b, sealing material can be selected glue, rubber, teflon etc.The Vertical direction size in the through hole cross section of described spool 2 is less than the substantially horizontal size.Described valve rod 8 be positioned at spool 2 above or below, and and spool 2 one, spool 2 and valve rod 8 are same vertical rotary axle center, can horizontally rotate.The manufactured materials of described valve body is plastics, copper, stainless steel, aluminum alloy or composite material; Described plastics are conductive plastic.Described valve body is lined with metal screen layer 1e; The jaw of described lead-in wire 9 is provided with temperature transducer 11.Spool 2 can adopt the manufacturing of plastic materials injection molding process, is shaped as cylindrical body, and medium position has the long-round-shape through hole (referring to Fig. 2) of substantially horizontal.When spool 2 was in as shown in Figure 1 conduction position, the pipeline of the through hole of spool 2 and intake pipe 1a and outlet pipe 1b had formed complete runner, in order to realize the measurement of flow.Spool 2 is at the position of conducting 90-degree rotation, and is namely in the closed position.Spool 2 inside include the flow transducer that coil (upper coil 3, lower coil 4), magnetic core (upper magnetic core 5, lower magnetic core 6) and electrode (the first electrode 7a, the second electrode 7b) form, and coil and magnetic core adopt injection molding process to be fixed in spool 2.Described coil is the substantially horizontal coiling, produces the magnetic field of Vertical direction in through hole, and illustrated in figures 1 and 2 is the section of coil, and according to the Faradic electricity magnetic induction principle, the fluid in through hole is passed in magnetic field, thereby produces induced potential in fluid.Upper magnetic core 5 is positioned at the middle part of coil 3, and lower magnetic core 6 is positioned at the middle part of lower coil 4, and the center of upper magnetic core 5 further includes the hole of Vertical direction, in order to place lead-in wire 9.Symmetrical in order to guarantee magnetic field, upper magnetic core 5 and lower magnetic core 6 are of similar shape and size, to improve the flow measurement precision.
Electrode is conductive plastic, and adopts injection molding process to be fixed on through-hole wall.Valve rod 8 and spool 2 can adopt injection molding process integrally manufactured, and valve rod 8 and spool 2 are done and horizontally rotated around same vertical rotary axle center, in order to realize the conducting of spool and close.Be arranged on the seal ring 10 between valve rod 8 and valve pocket lid 1d, can adopt the sealing means such as o type rubber ring, oil sealing or stuffing box packing.Spool 2 also further includes lead-in wire 9, and lead-in wire 9 passes valve rod 8, and lead-in wire 9 can adopt the printed circuit board (PCB) manufacturing, and the outside that is used for electrode (the first electrode 7a, the second electrode 7b), coil (upper coil 3, lower coil 4) is electrically connected to (referring to Fig. 2).Lead-in wire 9 and interlock circuit adopt technology well-known to those skilled in the art, no longer deeply explain here.Spool 2 also further includes temperature transducer 11, in order to measure the temperature of fluid, and then obtains the heat of fluid, and temperature transducer 11 is arranged on the printed circuit board (PCB) of lead-in wire 9, near the through-hole wall of spool 2.Spool 2 adopts symmetric design, and the direction of water inlet and water outlet can be selected arbitrarily, the convenient installation.
See Fig. 1 and Fig. 3, described coil comprises coil 3, lower coil 4, but with embodiment 1, compare, lacks upper magnetic core 5, lower magnetic core 6.
See Fig. 1 and Fig. 4, described spool 2 comprises magnetic core, and coil comprises coil 3, lower coil 4, and magnetic core is lower magnetic core 6, and lower coil 4 is surrounded lower magnetic core 6, but with embodiment 1, compare, lacks upper magnetic core 5.
See Fig. 1 and Fig. 5, described spool 2 comprises magnetic core, and coil is upper coil 3, and magnetic core comprises magnetic core 5, lower magnetic core 6, and upper coil 3 surrounds upper magnetic core 5, but with embodiment 1, compares and lack lower coil 4.
Flow measurement of the present invention and control integrated device, it is cylindrical that spool can be the band through hole, or other shapes, as spherical etc.; Through hole in spool 2 is long-round-shape, can adopt the shapes such as rectangular, circle, ellipse in addition, all in the protection domain of this patent.Based on technological scheme modification of the present invention, such as adopting various possible shapes and parts, and possible enforcement order and step,, as the upper down conversion of coil and magnetic core position, all should think within protection scope of the present invention.
Claims (10)
1. a flow measurement and control integrated device, it comprises valve body, spool (2) and valve rod (8); Valve body comprises intake pipe (1a), valve chamber (1b), outlet pipe (1c), valve pocket lid (1d), valve chamber (1b) is positioned between intake pipe (1a) and outlet pipe (1c), valve chamber (1b) and valve pocket lid (1d) form an open-topped valve pocket, and spool (2) is arranged in valve pocket; Spool (2) is provided with the through hole that connects intake pipe (1a) and outlet pipe (1c), valve rod (8) is positioned at spool (2) top, stretch out from valve chamber (1b) and open-topped valve pocket of valve pocket lid (1d) composition, be provided with seal ring (10) between valve rod (8) and valve pocket lid (1d); It is characterized in that: described spool (2) comprises coil, the first electrode (7a), the second electrode (7b), lead-in wire (9); The first electrode (7a), the second electrode (7b) are symmetrically distributed in the both sides inwall of through hole, lead-in wire (9) is for falling fork-shaped, the jaw two ends of lead-in wire (9) are connected with the first electrode (7a), the second electrode (7b) respectively, and the fork arm of lead-in wire (9) stretches out from valve rod (8).
2. a kind of flow measurement as claimed in claim 1 and control integrated device, it is characterized in that: described coil comprises coil (3), lower coil (4), upper coil (3) is positioned at the top of spool (2) through hole, and lower coil (4) is positioned at the below of through hole.
3. a kind of flow measurement as claimed in claim 1 and control integrated device, it is characterized in that: described spool (2) also comprises magnetic core, coil comprises coil (3), lower coil (4), magnetic core is lower magnetic core (6), upper coil (3) is positioned at the top of spool (2) through hole, lower coil (4) is positioned at the below of through hole, and lower coil (4) is surrounded lower magnetic core (6).
4. a kind of flow measurement as claimed in claim 1 and control integrated device, it is characterized in that: described spool (2) also comprises magnetic core, coil is upper coil (3), magnetic core comprises magnetic core (5), lower magnetic core (6), upper coil (3) is positioned at the top of spool (2) through hole, magnetic core (5) in upper coil (3) encirclement, lower magnetic core (6) is positioned at the below of through hole.
5. a kind of flow measurement as claimed in claim 1 and control integrated device, it is characterized in that: described spool (2) also comprises magnetic core, coil comprises coil (3), lower coil (4), magnetic core comprises magnetic core (5), lower magnetic core (6), upper coil (3) is positioned at the top of spool (2) through hole, lower coil (4) is positioned at the below of through hole, magnetic core (5) in upper coil (3) encirclement, and lower coil (4) is surrounded lower magnetic core (6).
6. a kind of flow measurement as claimed in claim 1 and control integrated device, it is characterized in that: the Vertical direction size in the through hole cross section of described spool (2) is less than the substantially horizontal size.
7. a kind of flow measurement as claimed in claim 1 and control integrated device, it is characterized in that: described valve rod (8) be positioned at spool (2) above or below, and and spool (2) one, spool (2) and valve rod (8) are same vertical rotary axle center, can horizontally rotate.
8. a kind of flow measurement as claimed in claim 1 and control integrated device, it is characterized in that: the manufactured materials of described valve body is plastics, copper, stainless steel, aluminum alloy or composite material; Described plastics are conductive plastic.
9. flow measurement and control integrated device as claimed in claim 1, it is characterized in that: described valve body is lined with metal screen layer (1e).
10. flow measurement and control integrated device as claimed in claim 1, it is characterized in that: the jaw of described lead-in wire (9) is provided with temperature transducer (11).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103017503A CN102840357B (en) | 2012-08-23 | 2012-08-23 | Flow measurement and control integrated device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103017503A CN102840357B (en) | 2012-08-23 | 2012-08-23 | Flow measurement and control integrated device |
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| CN102840357A CN102840357A (en) | 2012-12-26 |
| CN102840357B true CN102840357B (en) | 2013-11-13 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103278201B (en) * | 2013-05-24 | 2016-12-28 | 杭州云谷科技股份有限公司 | A kind of flow sensor and application thereof |
| CN103267552B (en) * | 2013-05-24 | 2016-08-31 | 杭州云谷科技股份有限公司 | Valve and electromagnetic flowmeter integrated apparatus and application thereof |
| CN103256957B (en) * | 2013-05-24 | 2016-05-04 | 杭州云谷科技有限公司 | A kind of spool and electrode integrated apparatus, electromagnetic flowmeter and application thereof |
| DE102014113408A1 (en) | 2014-09-17 | 2016-03-17 | Endress + Hauser Flowtec Ag | Method for producing a magneto-inductive flowmeter with a partially reduced cross-section |
| EP3517899A4 (en) * | 2017-04-28 | 2019-08-28 | Aichi Tokei Denki Co., Ltd. | Electromagnetic flowmeter |
| EP3591269A1 (en) * | 2018-07-05 | 2020-01-08 | Kamstrup A/S | Integrated flow meter and control valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3200587C2 (en) * | 1982-01-12 | 1989-10-12 | Rötelmann & Co, 5980 Werdohl | Device for determining measured variables in pipeline systems |
| EP0154960A1 (en) * | 1984-03-15 | 1985-09-18 | SPANNER-POLLUX GmbH | Measuring device for measuring the temperature in a conduit |
| GB8511399D0 (en) * | 1985-05-03 | 1985-06-12 | Weir R J | Process line valve |
| US5588462A (en) * | 1986-06-16 | 1996-12-31 | Agf Manufacturing, Inc. | Valve and sensor arrangement |
| CN2554601Y (en) * | 2002-08-01 | 2003-06-04 | 谭文胜 | Electric vortex runer type flowmeter |
| CN2569108Y (en) * | 2002-09-20 | 2003-08-27 | 北京融洋技术研究所 | Integrated water meterand valve assembly |
| CN100449185C (en) * | 2007-03-15 | 2009-01-07 | 上海交通大学 | Detectable flow electromagnetic valve |
| CN101339060B (en) * | 2007-07-03 | 2010-06-23 | 上海星空自动化仪表有限公司 | Heavy caliber electrical flow meter for user to send it to be checked |
| CN201382792Y (en) * | 2009-01-19 | 2010-01-13 | 湛江中信电磁阀有限公司 | Water flow sensor impeller assembly and water flow sensor employing same |
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