CN1510401A - Assembled flow sensor with wider measurement range - Google Patents
Assembled flow sensor with wider measurement range Download PDFInfo
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- CN1510401A CN1510401A CNA021577447A CN02157744A CN1510401A CN 1510401 A CN1510401 A CN 1510401A CN A021577447 A CNA021577447 A CN A021577447A CN 02157744 A CN02157744 A CN 02157744A CN 1510401 A CN1510401 A CN 1510401A
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- flow sensor
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Abstract
A transducer which is assembled in integration of heavy flow measurement assembly and light flow measurement assembly can carry on light flow measurement with minimum flow of 5 litre/hour as initial flow of 3 litre/hour and flow range width of 500:1. The heavy flow measurement assembly is wide-range flow transducer in orifice plate type and the light flow measurement assembly is wide-range flow measurement transducer in floater type. The present invention is specially suitable to be used as a water gauge at family house.
Description
Technical field
The present invention relates to a kind of surveying instrument, relate in particular to a kind of combined type wide-range flow sensor.
Background technology
In view of the fast development that modern dwelling is built, the corresponding utility object of giving priority to that develops into country.Must adapt to the technical development of information age as utility tap water gauge table, adapt to very austere requirement because of water saving situation.Should accomplish accurate metering,, the side of water supply and user side be formed the optimum situation of justice, mutual trust again from ensureing that economically the resident has enthusiasm and the initiative that in time prevents water clock.At present, the B level water meter of family expenses, the measuring accuracy in minimum flow and the boundary flow range is 5%.With 2.5 tons/hour of rated flows is example, the minimum flow of family expenses B level water meter is 50 liters/hour, below 50 liters/hour, initial flow up to the Spiralism type domestic meter, no longer till the rotation, measuring accuracy worse and worse, relative error will soon surpass 50% up to 100%, below the initial flow, relative error all is 100%.Band mechanical counter person, initial flow is about 15 liters/hour, the person that is not with the mechanical counter, initial flow is about 6 liters/hour.All can't measure low discharge.This is undoubtedly a kind of loss to the meterage of water utilities department.In addition, after existing Spiralism type domestic meter uses a period of time,, be difficult to guarantee measuring accuracy, can cause economically loss to the user again because the wearing and tearing of its bearing make the table tool more and more too sensitive.Therefore, for domestic water meter, should keep a grip on and drip, satisfy the metering of low discharge, the instantaneous water consumption that adapts to the resident again is bigger, satisfies the metering of big flow.And take into account water utilities department and user both sides' interests, promote the raising of resident's consciousness of saving water.
Summary of the invention
Purpose of the present invention is to provide a kind of metering that can satisfy low discharge, can satisfy the metering of big flow again, measuring accuracy height, the combined type wide-range flow sensor that measuring error is little.
The object of the present invention is achieved like this, and a kind of combined type wide-range flow sensor is characterized in, measures combination of components by big flow measurement assembly and low discharge and be assembled; Described big flow measurement assembly is an orifice-plate type wide-range flow sensor; It is float-type wide-range flow sensor that described low discharge is measured assembly;
Described big flow measurement assembly comprises: be provided with medium runner and adapter housing, with housing from being arranged on throttling orifice plate on the housing inner flow passage, being connected elasticity measurement element on the throttling orifice plate, being connected support plate on the housing, being arranged at least one adjustable support on the support plate, being arranged in pairs in the detecting element on support plate or the housing; The free end of elasticity measurement element is connected on the throttling orifice plate, and the stiff end of elasticity measurement element is connected on the housing;
Described low discharge is measured assembly and is comprised: the following guide frame of straight tube shape housing, the orifice plate that is fixed on the band center taper hole in the middle of the housing and band center pit, be nested in float in orifice plate center taper hole and the following guide frame center pit, be connected last guide frame on the float, be connected the float lower end spring base, be connected the spring that is enclosed within the float bottom on the spring base, winding at the inductive coil of hull outside and be enclosed within protection tube outside the inductive coil.
Also comprise a square connecting pipe; Described big flow measurement assembly can be measured assembly with described low discharge and directly be connected and be combined into through-type combined type wide-range flow sensor, also can connect in succession by square connecting pipe and described low discharge measurement inter-module and be combined into perpendicular type combined type wide-range flow sensor.
Described adjustable support is a set screw.
Described elasticity measurement element is elasticity measurement sheet or elasticity measurement pipe and the combination of being out of shape the amplification bar.
Described elasticity measurement element is with the adjacent part of detecting element, and applying (or bonding, connect) has metal material or ferrimagnets such as copper, aluminium, zinc, titanium, gold, silver, perhaps itself is exactly steel material.
Described float is hollow float or solid float, the top of float is cone, and this cone is nested in the center taper hole of orifice plate, and the bottom of float is a column, this column is nested in down in the center pit of guide frame and can slides up and down in the hole, and described spring housing is contained on this column.
The housing of described big flow measurement assembly is straight shape or dihedral, and medium runner on the housing and adapter are arranged on the end or the middle part of housing.
Described distortion is amplified bar and is arranged in the pipe of elasticity measurement pipe, and the free end of its stiff end and elasticity measurement pipe links together and is fixed on the throttling orifice plate, and its free end stretches out outside housing.
Described set screw is three.
Combined type wide-range flow sensor of the present invention makes it compared with prior art owing to adopted above technical scheme, has following tangible advantage and characteristics:
1, can carry out low discharge measures
Because adopted low discharge to measure assembly float-type wide-range flow sensor, its minimum flow can be designed to 5 liters/hour, initial flow is better than existing water meter greatly then below 3 liters/hour.
2, broad quantum
Because minimum flow reduces, rated flow is constant.Its range width increases greatly, can reach 500 to 1.
3, there are not wearing and tearing
Because low discharge is measured assembly and big flow measurement assembly does not all have rotating element, thereby can not produce wear problem.
4, the pressure loss is little
Because it is little that float that combined type wide-range flow sensor of the present invention is adopted and throttling orifice plate all have the less pressure loss, only be equivalent to 80% of existing water meter.
Description of drawings
By the description of following examples in conjunction with its accompanying drawing, can further understand purpose of the present invention, concrete structure characteristics and advantage, wherein, accompanying drawing is:
Fig. 1 is the structural representation of the embodiment one of combined type wide-range flow sensor of the present invention;
Fig. 2 is the inner structure synoptic diagram of the big flow measurement assembly of embodiment one;
Fig. 3 is the shell structure synoptic diagram of the big flow measurement assembly of embodiment one;
Fig. 4 is the structural representation that the low discharge of combined type wide-range flow sensor of the present invention is measured assembly;
Fig. 5 is the structural representation of the embodiment two of combined type wide-range flow sensor of the present invention;
Fig. 6 is the structural representation of the big flow measurement assembly of embodiment two;
Fig. 7 is the structural representation of the square connecting pipe of embodiment two;
Fig. 8 is the structural representation of the embodiment three of combined type wide-range flow sensor of the present invention;
Fig. 9 is the inner structure synoptic diagram of the big flow measurement assembly of embodiment three;
Figure 10 is the shell structure synoptic diagram of the big flow measurement assembly of embodiment three;
Figure 11 is the structural representation of the embodiment four of combined type wide-range flow sensor of the present invention;
Figure 12 is the partial structurtes synoptic diagram of the big flow measurement assembly of embodiment four;
Figure 13 is the local shell structure synoptic diagram of the big flow measurement assembly of embodiment four;
Figure 14 is the structural representation of the embodiment five of combined type wide-range flow sensor of the present invention;
Figure 15 is the partial structurtes synoptic diagram of the big flow measurement assembly of embodiment five;
Figure 16 is the local shell structure synoptic diagram of the big flow measurement assembly of embodiment five;
Figure 17 is the structural representation of the embodiment six of combined type wide-range flow sensor of the present invention;
Figure 18 is the structural representation of the big flow measurement assembly of embodiment six.
Embodiment
See also Fig. 1, cooperate referring to Fig. 5, Fig. 8, Figure 11, Figure 14, Figure 17, combined type wide-range flow sensor of the present invention is measured assembly 2 combine and assemble by big flow measurement assembly 1 and low discharge and is formed; Or measure assembly 2 and square connecting pipe 3 combine and assemble form by big flow measurement assembly 1, low discharge; When big flow measurement assembly 1 directly is connected with low discharge measurement assembly 2, be combined into through-type combined type wide-range flow sensor (referring to Fig. 1, Fig. 8, Figure 11, Figure 14), big flow measurement assembly 1 is measured assembly during 2 indirect connections by square connecting pipe 3 and low discharge, is combined into perpendicular type combined type wide-range flow sensor (referring to Fig. 5, Figure 17).Big flow measurement assembly 1 is an orifice-plate type wide-range flow sensor; It is float-type wide-range flow sensor that low discharge is measured assembly 2.
Please continue referring to Fig. 1, cooperation is referring to Fig. 5, Fig. 8, Figure 11, Figure 14, Figure 17, and the big flow measurement assembly 1 of combined type wide-range flow sensor of the present invention comprises: housing 11, throttling orifice plate 12, elasticity measurement element 13, support plate 14, detecting element 15 and adjustable support 16.
On housing 11, be provided with medium runner 111, upper connecting tube 112, lower linking tube 113 and can be used as fixed supported end cap 114, housing can be straight shape (referring to Fig. 1, Fig. 5, Fig. 8, Figure 17), also can be dihedral (referring to Figure 11, Figure 14), medium runner on the housing and adapter can be arranged on the end (referring to Fig. 5, Fig. 8, Figure 11, Figure 14, Figure 17) of housing, also can be arranged on the middle part (referring to Fig. 1) of housing.
Throttling orifice plate 12 and housing 11 are in the runner 111 that is arranged on housing 11.
The free end of elasticity measurement element 13 is connected on the throttling orifice plate 12, its stiff end is connected on the housing 11, elasticity measurement element 13 can be that elasticity measurement sheet 131 is (referring to Fig. 1, Figure 14, Figure 17), also can be that elasticity measurement pipe 132 amplifies the combination of bar 133 (referring to Fig. 5 with distortion, Fig. 8, Figure 11), when adopting elasticity measurement pipe 132 and distortion to amplify bar 133 combinations, distortion is amplified bar 133 and is arranged in the pipe of elasticity measurement pipe 132, the free end of its stiff end and elasticity measurement pipe 132 links together and is fixed on an end of throttling orifice plate 12, and its free end stretches out outside housing 11 (referring to Fig. 5, Fig. 8, Figure 11,).
Detecting element 15 can be arranged on (referring to Fig. 1, Figure 17) on the support plate, also can be arranged on the housing upper end cover be out of shape outward the both sides of amplifying bar (referring to Fig. 5, Fig. 8, Figure 11), also can be embedded on housing (referring to Figure 14).
See also Fig. 4; cooperation is referring to Fig. 1, Fig. 5, Fig. 8, Figure 11, Figure 14, Figure 17; it is identical that the low discharge of each embodiment of combined type wide-range flow sensor of the present invention is measured assembly 2; comprise: the orifice plate 22 of straight tube shape housing 21, band center taper hole, following guide frame 23, float 24, last guide frame 25, spring base 26, spring 27, inductive coil 28 and the protection tube 29 of band center pit; between inductive coil 28 and protection tube 29, be filled with fluid sealant 20.
Float 24 is hollow float or solid float.The top of float 24 is cone 241, and this cone 241 is nested in the center taper hole of orifice plate 22; The bottom of float 24 is a column 242, and this column is nested in down in the center pit of guide frame 23 and can slides up and down in the hole.
See also Fig. 1, cooperation is referring to Fig. 2, Fig. 3, Fig. 4, the embodiment one of combined type wide-range flow sensor of the present invention is through-type combined type wide-range flow sensor, the lower linking tube 212 of being measured assembly 2 by low discharge is threaded with the upper connecting tube 112 of big flow measurement assembly 1 and combines, be provided with sealing gasket 41 in the junction to guarantee sealing, fluid advances out under vertical direction.In the present embodiment, the runner 111 of big flow measurement assembly 1 and the middle part that last lower linking tube 112,113 is arranged on housing; End cap 114 is connected with housing by attachment bolt, and seals with O-ring seal 44; Measuring sensor 13 is an elasticity measurement sheet 131; The elasticity measurement sheet was located at the two ends of throttling orifice plate 12 in 131 minutes, and its free end is near housing end plug 114 1 sides; Support plate 14 has two, comprises upper bearing plate 141 and lower support plate 142; Upper bearing plate 141 and lower support plate 142 are crossed over throttling orifice plate 12 and are connected on the end cap 114 of housing; With the junction of end cap 114, upper bearing plate 141 and lower support plate 142 link into an integrated entity by two screws 43 of a clamp 42 usefulness, and are respectively equipped with fairlead 1411,1421, and the lead of detecting element is drawn; On end cap 114, also be provided with corresponding fairlead 1141,1142, be used for lead is drawn housing; Upper bearing plate 141 and lower support plate 142 grip elasticity measurement sheet 131 therein by fixture 17; Detecting element 15 is arranged on the upper and lower support plate of elasticity measurement sheet 131 both sides, is provided with upper cover plate 151 and lower cover 152 in the upper and lower both sides of detecting element 15; Adjustable support 16 is three expansion screws, is separately positioned on the upper bearing plate 141 in the corresponding hole.
See also Fig. 5, cooperation is referring to Fig. 4, Fig. 6, Fig. 7, the embodiment two of combined type wide-range flow sensor of the present invention is a perpendicular type combined type wide-range flow sensor, the lower linking tube 212 of being measured assembly 2 by low discharge is connected with the threaded one end of dihedral connecting pipe 3, and the other end of dihedral connecting pipe is threaded with the upper connecting tube 112 of big flow measurement assembly 1 and combines.Be provided with sealing gasket 41 in the junction to guarantee sealing.Fluid advances from horizontal direction, goes out vertically upward.In the present embodiment, the runner 111 of big flow measurement assembly 1 and the end that last lower linking tube 112,113 is arranged on housing, its measuring sensor 13 is the combination that bar 133 is amplified in elasticity measurement pipe 132 and distortion.The free end of elasticity measurement pipe 132 is fixed on the restricting element 12, and its stiff end is connected on the end cap 114 of housing; Distortion is amplified bar 133 and is arranged in the pipe of elasticity measurement pipe 132, and the free end of its stiff end and elasticity measurement pipe 132 links together and is fixed on the throttling orifice plate 12, and its free end stretches out outside housing 11; One end of support plate 14 is fixed on the housing end plug 114; The both sides of bar 133 are amplified in distortion outside housing 11, are provided with detecting element 15, between detecting element 15 and housing end plug 114, are provided with support 45, on support 45, are provided with case 46, with detecting element 15 sealing covers therein; Adjustable support 16 is three expansion screws, is separately positioned on the support plate 14 in the corresponding hole.
See also Fig. 8, cooperation is referring to Fig. 4, Fig. 9, Figure 10, the embodiment three of combined type wide-range flow sensor of the present invention is through-type combined type wide-range flow sensor, the lower linking tube 212 of being measured assembly 2 by low discharge is threaded with the upper connecting tube 112 of big flow measurement assembly 1 and combines, be provided with sealing gasket 41 in the junction to guarantee sealing, fluid advances out under vertical direction.The structure of the big flow measurement assembly 1 of present embodiment is identical with embodiment two.
See also Figure 11, cooperation is referring to Fig. 4, Figure 12, Figure 13, the embodiment four of combined type wide-range flow sensor of the present invention is through-type combined type wide-range flow sensor, the lower linking tube 212 of being measured assembly 2 by low discharge is threaded with the upper connecting tube 112 of big flow measurement assembly 1 and combines, be provided with sealing gasket 41 in the junction to guarantee sealing, fluid advances out under vertical direction.The structure of the big flow measurement assembly 1 of present embodiment and embodiment two, embodiment three are basic identical, difference is: in the present embodiment, the housing of big flow measurement assembly 1 is a dihedral, its runner and upper and lower adapter partly form independent parts, connect into an integral body by a connection short tube 47 and a dihedral arm, remove restricting element 12 and be arranged on the runner China and foreign countries, all the other each parts all are arranged on the vertical section of dihedral arm, and its elasticity measurement pipe 132 amplifies bar 133 with distortion and links to each other with restricting element 12 with connecting link 135 by a contiguous block 134.
See also Figure 14, cooperation is referring to Fig. 4, Figure 15, Figure 16, the embodiment five of combined type wide-range flow sensor of the present invention is through-type combined type wide-range flow sensor, the lower linking tube 212 of being measured assembly 2 by low discharge is threaded with the upper connecting tube 112 of big flow measurement assembly 1 and combines, be provided with sealing gasket 41 in the junction to guarantee sealing, fluid advances out under vertical direction.The shell structure of the big flow measurement assembly 1 of present embodiment is a dihedral, basic identical with embodiment four, its runner and upper and lower adapter partly form independent parts, connect into an integral body by the flange connection with a dihedral arm, remove restricting element 12 and be arranged on the runner China and foreign countries, all the other each parts all are arranged on the vertical section of dihedral arm.Its inner structure and embodiment one are similar, support plate 14 and elasticity measurement sheet 131 are fixed on the housing by a fixture 17, elasticity measurement sheet 131 links to each other with restricting element 12 with connecting link 135 by a contiguous block 134, is provided with three expansion screws as adjustable support 16 on support plate 14.Difference is, the detecting element of present embodiment is arranged on the two ends of dihedral housing horizontal segment, be provided with a magnetic fangs 48 at a end near contiguous block 134, place a magnetic jar 15 in jar as detecting element, the other end also is provided with a detecting element 15 and is embedded in housing, and detecting element 15 outsides are provided with a cover plate 153 with its capping.
See also Figure 17, cooperation is referring to Fig. 4, Figure 18, Fig. 7, the embodiment six of combined type wide-range flow sensor of the present invention is a perpendicular type combined type wide-range flow sensor, the lower linking tube 212 of being measured assembly 2 by low discharge is connected with the threaded one end of dihedral connecting pipe 3, and the other end of dihedral connecting pipe is threaded with the upper connecting tube 112 of big flow measurement assembly 1 and combines; Be provided with sealing gasket 41 in the junction to guarantee sealing; Fluid advances from horizontal direction, goes out vertically upward; The runner 111 of big flow measurement assembly 1 and the end that last lower linking tube 112,113 is arranged on housing.Measuring sensor 13 is an elasticity measurement sheet 131, the support plate 14 that is fixed on the end cap 114 of housing has two, comprise upper bearing plate 141 and lower support plate 142, elasticity measurement sheet 131 and upper bearing plate 141 and lower support plate 142 are fixed on by a fixture 17 on the end cap 114 of housing, and three expansion screws as adjustable support 16 are arranged on the upper bearing plate 141; Detecting element was located at the free end of upper and lower support plate in 15 minutes, was respectively equipped with cover plate 151,152 in the outside of detecting element 15, respectively was provided with fairlead 1411,1421 on last lower support plate, was used for the lead of detecting element is drawn housing.
Claims (9)
1, a kind of combined type wide-range flow sensor is characterized in that: measure combination of components by big flow measurement assembly and low discharge and be assembled; Described big flow measurement assembly is an orifice-plate type wide-range flow sensor; It is float-type wide-range flow sensor that described low discharge is measured assembly;
Described big flow measurement assembly comprises: be provided with medium runner and adapter housing, with housing from being arranged on throttling orifice plate on the housing inner flow passage, being connected elasticity measurement element on the throttling orifice plate, being connected support plate on the housing, being arranged at least one adjustable support on the support plate, being arranged in pairs in the detecting element on support plate or the housing; The free end of elasticity measurement element is connected on the throttling orifice plate, and the stiff end of elasticity measurement element is connected on the housing;
Described low discharge is measured assembly and is comprised: the following guide frame of straight tube shape housing, the orifice plate that is fixed on the band center taper hole in the middle of the housing and band center pit, be nested in float in orifice plate center taper hole and the following guide frame center pit, be connected last guide frame on the float, be connected the float lower end spring base, be connected the spring that is enclosed within the float bottom on the spring base, winding at the inductive coil of hull outside and be enclosed within protection tube outside the inductive coil.
2, combined type wide-range flow sensor according to claim 1 is characterized in that: also comprise a square connecting pipe; Described big flow measurement assembly can be measured assembly with described low discharge and directly be connected and be combined into through-type combined type wide-range flow sensor, also can connect in succession by square connecting pipe and described low discharge measurement inter-module and be combined into perpendicular type combined type wide-range flow sensor.
3, combined type wide-range flow sensor according to claim 1, it is characterized in that: described adjustable support is a set screw.
4, combined type wide-range flow sensor according to claim 1 is characterized in that: described elasticity measurement element is elasticity measurement sheet or elasticity measurement pipe and the combination of being out of shape the amplification bar.
5, combined type wide-range flow sensor according to claim 1, it is characterized in that: described elasticity measurement element is with the adjacent part of detecting element, applying (or bond, connect) has metal material or ferrimagnets such as copper, aluminium, zinc, titanium, gold, silver, perhaps itself is exactly steel material.
6, combined type wide-range flow sensor according to claim 1, it is characterized in that: described float is hollow float or solid float, the top of float is cone, this cone is nested in the center taper hole of orifice plate, the bottom of float is a column, this column is nested in down in the center pit of guide frame and can slides up and down in the hole, and described spring housing is contained on this column.
7, combined type wide-range flow sensor according to claim 1, it is characterized in that: the housing of described big flow measurement assembly is straight shape or dihedral, medium runner on the housing and adapter are arranged on the end or the middle part of housing.
8, combined type wide-range flow sensor according to claim 7, it is characterized in that: described distortion is amplified bar and is arranged in the pipe of elasticity measurement pipe, the free end of its stiff end and elasticity measurement pipe links together and is fixed on the throttling orifice plate, and its free end stretches out outside housing.
9, combined type wide-range flow sensor according to claim 3, it is characterized in that: described set screw is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02157744 CN1257391C (en) | 2002-12-25 | 2002-12-25 | Assembled flow sensor with wider measurement range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02157744 CN1257391C (en) | 2002-12-25 | 2002-12-25 | Assembled flow sensor with wider measurement range |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1510401A true CN1510401A (en) | 2004-07-07 |
| CN1257391C CN1257391C (en) | 2006-05-24 |
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ID=34236676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02157744 Expired - Fee Related CN1257391C (en) | 2002-12-25 | 2002-12-25 | Assembled flow sensor with wider measurement range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1257391C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425954C (en) * | 2006-11-24 | 2008-10-15 | 浙江大学 | A differential pressure type flow measuring method and flow apparatus thereof |
| CN103644945A (en) * | 2013-11-01 | 2014-03-19 | 曹佩森 | Multifunctional water meter |
| CN112461435A (en) * | 2020-09-27 | 2021-03-09 | 山东大学 | Interlocking device and multi-order nested high-precision self-adaptive sensor applying same |
-
2002
- 2002-12-25 CN CN 02157744 patent/CN1257391C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425954C (en) * | 2006-11-24 | 2008-10-15 | 浙江大学 | A differential pressure type flow measuring method and flow apparatus thereof |
| CN103644945A (en) * | 2013-11-01 | 2014-03-19 | 曹佩森 | Multifunctional water meter |
| CN103644945B (en) * | 2013-11-01 | 2016-08-17 | 曹佩森 | A kind of multifunctional watermeter |
| CN112461435A (en) * | 2020-09-27 | 2021-03-09 | 山东大学 | Interlocking device and multi-order nested high-precision self-adaptive sensor applying same |
| CN112461435B (en) * | 2020-09-27 | 2021-12-24 | 山东大学 | Interlocking device and multi-order nested high-precision self-adaptive sensor applying same |
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| Publication number | Publication date |
|---|---|
| CN1257391C (en) | 2006-05-24 |
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Granted publication date: 20060524 Termination date: 20091225 |