CN102840357A - Flow measurement and control integrated device - Google Patents
Flow measurement and control integrated device Download PDFInfo
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- CN102840357A CN102840357A CN2012103017503A CN201210301750A CN102840357A CN 102840357 A CN102840357 A CN 102840357A CN 2012103017503 A CN2012103017503 A CN 2012103017503A CN 201210301750 A CN201210301750 A CN 201210301750A CN 102840357 A CN102840357 A CN 102840357A
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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, fields such as particularly heat metering, water metering, Sewage metering, heating energy-saving, room temperature control.The present invention is applicable to that the family with flow measurement and control fields such as calorimeter, cold table, water meter, sewage tables, is specially adapted to the family with products such as balance sheet, balance calorimeters, and method for arranging provided by the present invention also is applicable to the general field of other flow controls.
Background technique
Flowmeter is one type of 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 that has conducting medium passes through magnetic field; The fluid cutting magnetic line produces induced potential on the Vertical direction in magnetic field, the amplitude and the flow rate of fluid of induced potential are directly proportional; Thereby acquisition flow rate of fluid, and then the flow of acquisition fluid.In order to produce magnetic field, around sounding pipe, field coil is installed, fluid is passed in the magnetic field that is produced, thereby in fluid, produces induced potential, and the installing electrodes in the both positive and negative polarity position of induced potential can be measured the size of induced potential.Electromagnetic flowmeter is widely used in flow measurement, has that measuring accuracy height, the linearity are good, does not have advantages such as structure part, antipollution thing in the sounding pipe.
Control valve is one type of flow control device, mainly is made up of parts such as valve body, spool and valve rods, and valve rod promotes valve core movement, changes the circulation area size of runner, thus control flow rate.Control valve is pressed textural classification, has: ball valve, butterfly valve, gate valve etc.Ball valve is a kind of control valve with the control flow rate that rotatablely moves, and spool is spherical, and a through hole is arranged, and when spool rotated, lead to the hole site changed thereupon, thereby changes the circulation area of runner, realizes flow control.
The realization of flow measurement and control in the existing technology, generally, by independently flowmeter and control valve are formed.Such as, flowmeter and control valve are connected on the same pipeline flux signal that control valve records according to flowmeter, the aperture of adjustment valve, thereby control flow rate.This independently collocation method; Flowmeter and control valve will be installed respectively, exist complicated, the big problem that takes up room, the narrow occasion in spaces such as cabinet and hoistways are installed; This method enforcement difficulty is big, cost is high; Especially in the application that needs meterage,, thereby do not have anti-theft capability easily by artificial destruction.This scheme is usually used in general occasions such as industry, and in the specific occasion, with balance sheet, balance calorimeter etc., this method exists installs complicated, big, the problem such as cost is high, non-anti-theft that takes up room, so also inapplicable like the family of city central heating.
In order to solve the problem of heat supply 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,, still there is not to solve the problem big, that cost is high that takes up room so this method has just solved installation question simply in housing.
Development along with the city central heating; Invent a kind of instrument that can control the heat supply flow in real time; It is more and more important in heating energy-saving, to seem; The integrated heat supply flow control instrument that particularly provide a kind of and be convenient to install, volume is little, cost is low satisfies the usage requirement in this field, becomes to solve one of energy-conservation important aspect of central heating system.In the existing technology, also not seeing has the integrated arrangement method that flowmeter and control valve are combined fully.
In sum, mainly there are following two problems in the flow measurement of existing technology and control gear:
1) method no matter independently, still discrete method, volume is big and cost is high;
2) method independently needs to install two parts, installs complicated and can't effectively guard against theft.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing technology, a kind of flow measurement and control integrated device are provided.
Flow measurement comprises valve body, spool and valve rod with the control integrated device; 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 are formed an open-topped valve pocket, and spool is installed in the valve pocket; Spool is provided with the through hole that connects intake pipe and outlet pipe, and spool comprises coil, first electrode, second electrode, lead-in wire; First electrode, second electrode are symmetrically distributed in the both sides inwall of through hole, go between to falling fork-shaped, and the jaw two ends of lead-in wire link to each other with first electrode, second electrode respectively, and the fork arm of lead-in wire stretches out from valve rod; Valve rod is positioned at the spool top, stretches out from valve chamber and open-topped valve pocket of valve pocket lid composition, is provided with seal ring between valve rod and the valve pocket lid.
Described coil comprises coil, lower coil, and last 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 following magnetic core, and last 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 magnetic core down.
Described spool also comprises magnetic core, and coil is last coil, and magnetic core comprises magnetic core, following magnetic core, and last coil is positioned at the top of valve core through hole, and last coil surrounds goes up magnetic core, and following 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), following magnetic core (6); Last 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 last coil (3) encirclement, and lower coil (4) is surrounded magnetic core (6) down.
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 with the spool one, spool and valve rod are the same vertical rotating shaft heart, 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 volume that the invention solves the existing technology existence is big, cost is high, complicated problems is installed, and has improved anti-theft capability simultaneously.In the existing technology, mean of access is that flow measuring device and control gear are split in a housing, and not seeing has flow measuring device and the incorporate device of control gear.The present invention is built in flow transducer in the spool of control valve, has increased the length of the intake pipe and the outlet pipe of control valve simultaneously, so as the flow field of stabilized fluid, the measuring accuracy of raising flow transducer.The present invention is according to the characteristics of urban heat supplying pipe network, adopts electromagnetic induction principle to measure flow rate of fluid, has that measuring accuracy height, the linearity are good, do not have advantages such as structure part, antipollution thing in the sounding pipe.Control valve adopts the arrangement of similar ball valve, and spool has through hole, and for the ease of the layout of sensor, spool design of the present invention becomes the cylindrical of band through hole.Select suitable spool shape, transducer arrangements in spool, is realized the integrated arrangement of flow measurement and control.The flow transducer of the used electromagnetic induction principle of measurement of the present invention is made up of coil and electrode.Coil arrangement is in the through hole above and below, and the electrode horizontal arrangement is in the both sides of through-hole wall, and wherein coil can further include magnetic core, so that 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 spacing up and down, improves the intensity in magnetic field, reduces the overall dimension of spool simultaneously.
According to a further aspect in the invention, a kind of device of measuring bidirectional traffics is provided, has made things convenient for installation.Intake pipe of the present invention and outlet pipe adopt symmetric arrangement, and spool also adopts symmetric arrangement with inner flow transducer, realizes the bidirectional measurement of flow.Device provided by the present invention, water inlet can be selected arbitrarily with the direction of water outlet, with respect to existing technology, need not during installation to consider to intake and the direction of water outlet, thereby has 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 further includes temperature transducer in spool, sensor signal transfers to the outside through lead, 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 the spool, and existing is that temperature transducer is independently split for existing technology, has characteristics simple in structure, that cost is low.
Compared with prior art, the present invention has following beneficial effect:
1) flow measurement is integrated with control, and volume is little, and cost is low, is convenient to install;
2) flow measurement is integrated with control, is not easy by artificial destruction, and anti-theft capability is strong;
3) spool built-in temperature sensor is realized calorimetric measurement, and is simple in structure, cost is low.
Certainly, arbitrary technological scheme of the present invention differs and all realizes above beneficial effects surely.
Description of drawings
Fig. 1 is the structural profile view of flow measurement and control integrated device;
Fig. 2 is the A-A face cross section view of flow measurement and control integrated device;
Fig. 3 is embodiment's 2 described spool cross section views;
Fig. 4 is embodiment's 3 described spool cross section views;
Fig. 5 is embodiment's 4 described spool cross section views;
Among the figure, intake pipe 1a, valve chamber 1b, outlet pipe 1c, body cap 1d, metal screen layer 1e, spool 2, go up coil 3, lower coil 4, go up magnetic core 5, magnetic core 6, the first electrode 7a, the second electrode 7b, valve rod 8, lead-in wire 9, seal ring 10, temperature transducer 11 down.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Embodiment 1
Referring to Fig. 1 and Fig. 2, flow measurement comprises valve body, spool 2 and valve rod 8 with the control integrated device; 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 installed in the 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 link to each other 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, stretches out from valve chamber 1b and open-topped valve pocket of valve pocket lid 1d composition, is provided with seal ring 10 between valve rod 8 and the 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, following magnetic core 6, and last coil (3) is positioned at the top of spool (2) through hole, the below that lower coil (4) is positioned at through hole; Last coil 3 surrounds goes up magnetic core 5, and lower coil 4 is surrounded magnetic core 6 down.Intake pipe 1a and outlet pipe 1c can be circular pipe, include the standard thread that connects external pipe, so that be connected with external pipe.Intake pipe 1a and outlet pipe 1c adopt symmetric design, and the direction of water inlet and water outlet can be selected arbitrarily, so that install.Cylindrical valve pocket is arranged in the valve body 1, and valve pocket communicates with the pipeline of intake pipe 1a and outlet pipe 1c.During assembling, spool 2 is installed earlier in the valve pocket, valve pocket lid 1d is installed again, use the sealing material sealing and fixing between valve pocket lid 1d and the 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 with spool 2 one, spool 2 is the same vertical rotating shaft heart with valve rod 8, 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 conduction position as shown in Figure 1, the pipeline of the through hole of spool 2 and intake pipe 1a and outlet pipe 1b had constituted complete runner, so that realize the measurement of flow.Spool 2 revolves in the position of conducting and turn 90 degrees, and is promptly in the closed position.Spool 2 inner packet contain the flow transducer that coil (going up coil 3, lower coil 4), magnetic core (going up magnetic core 5, following magnetic core 6) and electrode (the first electrode 7a, the second electrode 7b) are formed, and coil and magnetic core adopt injection molding process to be fixed in the spool 2.Said coil is the substantially horizontal coiling, in through hole, produces the magnetic field of Vertical direction, and illustrated in figures 1 and 2 is the section of coil, and according to the Faradic electricity magnetic induction principle, the fluid in the through hole is passed in magnetic field, thereby in fluid, produces induced potential.Last magnetic core 5 is positioned at the middle part of coil 3, and following magnetic core 6 is positioned at the middle part of lower coil 4, and the center of last magnetic core 5 further includes the hole of Vertical direction, so that place lead-in wire 9.In order to guarantee the magnetic field symmetry, last magnetic core 5 is of similar shape and size with following magnetic core 6, to improve the flow measurement precision.
Electrode is a conductive plastic, and adopts injection molding process to be fixed on the through-hole wall.Valve rod 8 can adopt the manufacturing of injection molding process one with spool 2, and valve rod 8 is done around the same vertical rotating shaft heart with spool 2 and horizontally rotated, so that realize the conducting of spool and close.Be arranged on the seal ring 10 between valve rod 8 and the valve pocket lid 1d, can adopt 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 external electric that is used for electrode (the first electrode 7a, the second electrode 7b), coil (going up coil 3, lower coil 4) connects (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, so that measure the temperature of fluid, and then obtains the heat of fluid, and temperature transducer 11 is installed 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, still compares with embodiment 1 to lack magnetic core 5, following 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 following magnetic core 6, and lower coil 4 is surrounded magnetic core 6 down, lacks magnetic core 5 but compare with embodiment 1.
See Fig. 1 and Fig. 5, described spool 2 comprises magnetic core, and coil is last coil 3, and magnetic core comprises magnetic core 5, following magnetic core 6, and last coil 3 surrounds goes up magnetic core 5, still compares with embodiment 1 to 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 are like sphere etc.; Through hole in the spool 2 is a long-round-shape, can adopt 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 various possible shapes of employing and parts, and possible enforcement order and step, like the last down conversion of coil and magnetic core position, all should think within protection scope of the present invention.
Claims (10)
1. flow measurement and control integrated device, it is characterized in that: 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 the outlet pipe (1c); Valve chamber (1b) and valve pocket lid (1d) are formed an open-topped valve pocket, and spool (2) is installed in the valve pocket; Spool (2) is provided with the through hole that connects intake pipe (1a) and outlet pipe (1c), and spool (2) comprises coil, first electrode (7a), second electrode (7b), lead-in wire (9); First electrode (7a), 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) link to each other with first electrode (7a), 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) top, stretches out from valve chamber (1b) and open-topped valve pocket of valve pocket lid (1d) composition, is provided with seal ring (10) between valve rod (8) and the valve pocket lid (1d).
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); Last 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), and magnetic core is following magnetic core (6), and last 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 magnetic core (6) down.
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 last coil (3), and magnetic core comprises magnetic core (5), following magnetic core (6), and last coil (3) is positioned at the top of spool (2) through hole; Magnetic core (5) in last coil (3) encirclement, following 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, and coil comprises coil (3), lower coil (4), and magnetic core comprises magnetic core (5), following magnetic core (6); Last 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 last coil (3) encirclement, and lower coil (4) is surrounded magnetic core (6) down.
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 the same vertical rotating shaft heart, 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 according to claim 1, it is characterized in that: described valve body is lined with metal screen layer (1e).
10. flow measurement and control integrated device according to 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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| CN2012103017503A CN102840357B (en) | 2012-08-23 | 2012-08-23 | Flow measurement and control integrated device |
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| CN2012103017503A CN102840357B (en) | 2012-08-23 | 2012-08-23 | Flow measurement and control integrated device |
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| CN102840357A true CN102840357A (en) | 2012-12-26 |
| CN102840357B CN102840357B (en) | 2013-11-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103256957A (en) * | 2013-05-24 | 2013-08-21 | 杭州云谷科技有限公司 | Valve element and electrode integrated device, electromagnetic flowmeter and application thereof |
| CN103267552A (en) * | 2013-05-24 | 2013-08-28 | 杭州云谷科技有限公司 | Valve and electromagnetic flowmeter integrated device and application thereof |
| CN103278201A (en) * | 2013-05-24 | 2013-09-04 | 杭州云谷科技有限公司 | Flow sensing device and application thereof |
| CN106796131A (en) * | 2014-09-17 | 2017-05-31 | 恩德斯+豪斯流量技术股份有限公司 | Method for manufacturing the magnetic-inductive flow measuring apparatus in the section that there is part to reduce |
| CN109891200A (en) * | 2017-04-28 | 2019-06-14 | 爱知时计电机株式会社 | Electromagnetic flowmeter |
| CN106796131B (en) * | 2014-09-17 | 2019-07-16 | 恩德斯+豪斯流量技术股份有限公司 | Method for manufacturing the magnetic-inductive flow measuring apparatus in the section that there is part to reduce |
| CN112292551A (en) * | 2018-07-05 | 2021-01-29 | 卡姆鲁普股份有限公司 | Integrated flow meter and control valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103256957A (en) * | 2013-05-24 | 2013-08-21 | 杭州云谷科技有限公司 | Valve element and electrode integrated device, electromagnetic flowmeter and application thereof |
| CN103267552A (en) * | 2013-05-24 | 2013-08-28 | 杭州云谷科技有限公司 | Valve and electromagnetic flowmeter integrated device and application thereof |
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| CN106796131B (en) * | 2014-09-17 | 2019-07-16 | 恩德斯+豪斯流量技术股份有限公司 | Method for manufacturing the magnetic-inductive flow measuring apparatus in the section that there is part to reduce |
| US10551228B2 (en) | 2014-09-17 | 2020-02-04 | Endress + Hauser Flowtex Ag | Method for manufacturing a magneto-inductive flow measuring device with partially reduced cross section |
| CN109891200A (en) * | 2017-04-28 | 2019-06-14 | 爱知时计电机株式会社 | Electromagnetic flowmeter |
| CN112292551A (en) * | 2018-07-05 | 2021-01-29 | 卡姆鲁普股份有限公司 | Integrated flow meter and control valve |
| CN112292551B (en) * | 2018-07-05 | 2022-09-13 | 卡姆鲁普股份有限公司 | Integrated equipment of flow meter and control valve |
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| CN102840357B (en) | 2013-11-13 |
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