CN2684169Y - Water flow integrated standard apparatus - Google Patents
Water flow integrated standard apparatus Download PDFInfo
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- CN2684169Y CN2684169Y CN 200420007232 CN200420007232U CN2684169Y CN 2684169 Y CN2684169 Y CN 2684169Y CN 200420007232 CN200420007232 CN 200420007232 CN 200420007232 U CN200420007232 U CN 200420007232U CN 2684169 Y CN2684169 Y CN 2684169Y
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Abstract
The utility model relates to a synthetical standard apparatus for water flow capacity. The utility model is mainly composed of a working measuring vessel set, a water supply system, a pipe passage system, a control console and a commutator set and belongs to two professional metering fields of flow capacity for heat engineering and mechanics capacitance. The utility model integrates the advantages of four sets of apparatuses, such as the standard device for water flow capacity, etc. through the technical measures that work measuring vessels are combined in different methods, stop valves of the measuring vessels are connected in series, commutators are combined for use, a metering neck is changed to a double scale, a liquid discharging valve is changed to a three-way valve, an outlet of a testing pipeline is improved, etc. The utility model realizes that metering testing and calibrating work can be done for various metering apparatuses, such as an oil tank vehicle of an automobile, a water flowmeter, a metallic measuring vessel with a water gage lower than the second class and capacity more than 10L, other special tank bodies, etc. by one set of apparatuses. Through the design that the four apparatuses are combined into a whole, the utility model simplifies the bid building work of a plurality of metering projects, and the uncertainty of measurement of a testing result is raised.
Description
Affiliated technical field
The utility model belongs to thermal technology's flow and mechanics capacity two big professional metering fields, adopts volumetric method, is that medium can be carried out measurement verification, calibration operation to multiple measurement instrument with water.These measurement instruments comprise: automobile oil truck, water ga(u)ge, the above metal tank of second-class following 10L and other special tank bodies etc.Wherein discharge is in respect of water meter, volumeter (comprising elliptic gear, waist wheel, rotary-piston type etc.), velocity flowmeter (comprising turbine, electromagnetism, vortex street, ultrasound wave etc.), differential pressure flowmeter (comprising standard orifice plate, glass rotors, target formula etc.) and mass flowmeter (Coriolis-type) etc.
Background technology
At present, the water flow standard apparatus of widespread use (Static Volumetric Method), water meter calibration device, automobile jar calibrating installation, metal tank standard set-up, what the above two were related is thermal technology's flow metering specialty, both are mechanics capacity measurement specialties for the backs.They all are independent use, standard set-up with strong points basically.Just there is the situation that water flow standard apparatus and water meter calibration device two big standard set-ups are used in combination in the flow field when special requirement.
Adopt the water flow standard apparatus of Static Volumetric Method, the measurement verification regulations of its foundation are JJG164-2000, mainly are made up of work measuring instrument group, water system, pipe system, control desk, commutator etc.The work measuring instrument group generally is made up of two separate metal tanks; The measuring device scale is a single scale; Tapping valve is to utilize hydraulic pressure or compressed-air actuated pressure to finish, and valve port is bigger, should not water cycle be used by pipeline; Commutator uses single commutator; Preceding straight length generally satisfies 20D (D is the nominal bore diameter of flowmeter), and back straight length satisfies the requirement of 10D.Can carry out measurement verification work to water ga(u)ge.
The work measuring instrument group of water meter calibration device is similar with relevant support equipment and water flow standard apparatus, and difference is because the difference of calibrating project demand causes the work measuring instrument group different with pipe system.The measurement verification regulations of its foundation are JJG164-2000, divide large and small bore two cover calibrating installations.The work measuring instrument group generally is made up of two Pear-Shaped metal tanks respectively, and the measuring device scale provides with volumetric values, and tapping valve, commutator etc. are consistent with water flow standard apparatus, and the front and back straight length satisfies the requirement of 15D.Can carry out work such as measurement verification, arbitration calibrating to water meter.
The measurement verification regulations of automobile jar calibrating installation foundation are JJG133-1987, are the primary standard device with one group of metal tank, and relevant support equipment such as thermometer, special-purpose T-square, stopwatch is formed.The scale of metal tank is a vernier scale, and tapping valve is a ball valve, does not have the requirement of commutator and front and back straight length.Can carry out measurement verification work to automobile oil truck by the calibrating pipeline.
Measurement range is that the measurement verification regulations of the above second-class metal tank standard set-up foundation of 10L are JJG259-1989, is the primary standard device with one group of metal tank, the cover volumetric standards device that relevant support equipments such as thermometer and stopwatch are formed.It is consistent that metal tank scale, tapping valve, commutator, front and back straight length and automobile jar calibrating installation require, and do not need pipe system to finish calibration operation.Can carry out measurement verification to second-class following metal tank more than the 10L by mode direct or combination.
According to prior art, measurement technology mechanism must set up above quadruplet standard set-up respectively and carry out corresponding measurement verification work.And the infusion of financial resources of each standard set-up (not comprising space expenses) is on average up to hundreds of thousands unit, and the reason in expense and place has seriously hindered the fast development of metering cause.
Summary of the invention
Build mark contradiction in order to alleviate, overcome the specialty restriction of four big standard set-ups, the utility model is through being bold in innovation, maximize favourable factors and minimize unfavourable ones, analyse in depth projects to the work measuring instrument grade, the amount limit, scale, valve, the difference that purposes and pipe system etc. require, the advantage of comprehensive each device, when satisfying the requirement of corresponding measurement vertification regulation, by work measuring instrument is carried out different combinations, the series connection of stop valve between the measuring device, being used in combination of commutator, the double scale that metering neck place is provided with, tapping valve changes T-valve into, and to examining and determine the technical measures such as improvement of pipeline exit, former quadruplet standard set-up is transformed into a cover comprehensive standard device uses, be called for short " four device unifications " design.This design also can be transformed on the basis of existing device.
The technical scheme that its technical matters that solves the utility model adopts is:
The first, on the basis of satisfying the measurement verification regulations requirement, work measuring instrument group or primary standard device that each device is adopted make up adjustment, according to actual needs by a cover second-class or two, third-class work measuring instrument forms.By the stop valve series connection, the horizontal level of going up metering neck lowest part of measuring device reduces successively one by one by the order from the high capacity to the low capacity, and measuring device both can separately be used, and can be used as whole the use again between the work measuring instrument.The centre position of stop valve connecting pipe between two measuring devices.Measuring device is carrying out the nominal value timing signal, should carry out closing under the stop valve situation.When using as a whole, measuring device (supposes two measuring device series connection of A, B, and the horizontal level of metering neck lowest part is higher than the B measuring device on the A measuring device), stop valve is opened, when liquid level arrives B measuring device metering neck place, close stop valve, when A measuring device liquid level arrives metering neck place subsequently, commutator switched or close flow control valve, read the level value of A, B measuring device after steadily respectively Deng liquid level, be the actual volume of tested measurement instrument by temperature correction and the formula resulting measuring device volumetric values sum in back that converts.Device increases work measuring instrument in the finite space use volume is satisfied in this design, enlarges the sensing range of measurement instrument and improves its detection speed.
Secondly, the single commutator of measuring device top changes by two commutators and connecting tube to be formed, and wherein by nozzle the last commutator that water injects is left an open leakage fluid dram.When commutator is used between two measuring devices water (flow) direction and switches, will go up commutator and keep flowing to the measuring device direction, only operation down commutator get final product; When as a whole uses done in two measuring devices series connection, commutator is down switched to the higher measuring device direction of metering neck lowest part horizontal level and keeps, only operation upward commutator get final product.This design solves two measuring devices series connection when doing as a whole use, how to switch the problem of water (flow) direction, the accuracy of assurance device.
Three, measuring device metering neck place single scale changes double scale into.Wherein a scale is a vernier scale, is made up of major and minor scale, is used for the calibrating to high water ga(u)ge, second-class following standard capacity measure and special tank body of automobile oil truck, accuracy; Another scale is the definite value scale, and its main groove provides with volumetric values, and is carved with corresponding upper and lower franchise line, is used for the low water ga(u)ge measurement verification of accuracy.
The 4th, the tapping valve of measuring device changes T-valve into.The valve upper end connects the measuring device bottom outlet; One side connects the calibrating pipeline; Another side opening is in order to observe drip state or the definite zero value or the discharge opeing of measuring device.
The 5th, make full use of the calibrating pipeline of device.Exit at the calibrating pipeline changes three-way pipeline into, is controlled by stop valve, makes pipeline both can do calibrating and uses, and also can make recovery channel and use.When carrying out automobile oil truck, second-class following metal tank or special tank body measurement verification, direction pipe break valve is down opened, close side pipe road stop valve; When using, two above stop valve on off states are put upside down get final product as recovery channel.
The beneficial effects of the utility model are: with the water flow standard apparatus in flow, capacity field, water meter calibration device, automobile jar calibrating installation and second-class metal tank standard set-up originally independently the quadruplet standard set-up be transformed into a comprehensive water flow standard apparatus, simplify the mark work of building, save ample resources.This device can increase the use volume of work measuring instrument in the finite space, enlarge the sensing range of measurement instrument, improves the work efficiency of calibrating and respective detection result's uncertainty of measurement.
Description of drawings
Fig. 1 is the utility model process flow diagram.
Fig. 2 is the structural drawing of composite water flow calibration facility embodiment.
Fig. 3 is the structural drawing of measuring device metering neck double scale embodiment.
Fig. 4 is the structural drawing of measuring device tapping valve embodiment.
Among the figure 1, the work measuring instrument group, 2, water system, 3, pipe system, 4, control desk, 5, the commutator group, 6, Drainage pipe, 7, water ga(u)ge, 8, one group of flow regulation indicator, 9,10,11 stop valves, 12, the definite value scale, 13, the vernier scale complementary scale, 14, glass tube, 15, measuring device metering neck, 16, metering neck lowest part horizontal level on the measuring device, 17, the pond, 18, water tower, 19, water pump, 20, upper hose, 21, run-down pipe, 22, stop valve, 23, T-valve, 24, thermometer, 25, heavy caliber water ga(u)ge calibrating section, 26, recovery channel, 27, rectifier, 28, filtrator, 29, the tong-test ammeter platform, 30, pressure gauge, 31, thermometer, 32, pressure port, 33, the calibrating pipeline, 34, small-bore water ga(u)ge calibrating section, 35, stop valve, 36, the water inlet bend pipe, 37, nozzle, 38, reversing lever, 39, the vernier scale main scale
Embodiment
In Fig. 1, the utility model is made up of work measuring instrument group (1), water system (2), pipe system (3), control desk (4) and commutator group (5).Work measuring instrument group (1) can select to make up a cover two, third-class metal tank arbitrarily on the basis that guarantees the capability value that realization needs.Principle of work division of the present utility model is as follows:
When automobile oil truck, metal tank or special tank body are carried out in calibrating, close stop valve (11), open stop valve (9) water inlet,, inject measuring device group (1) through water ga(u)ge (7), one group of flow regulation indicator (8), water inlet bend pipe (36).Water level is closed stop valve (9) during to nominal value, and the water of known quantity enters in the tested utensil by calibrating pipeline (33) and stop valve (10) in the measuring device.
During calibrating heavy caliber water ga(u)ge, water ga(u)ge (7) is tested utensil.Open stop valve (9), by heavy caliber water ga(u)ge calibrating section (25) water inlet, Control Flow is regulated indicator (8), the water of the water ga(u)ge certain flow of flowing through is injected in the measuring device, by switching commutator group (5) or closing flow regulation indicator (8) shut-down operation.Measuring device actual volume after calculating is compared with water ga(u)ge (7) indicating value, at last the water in the measuring device passed through by Drainage pipe (6) or T-valve (23), calibrating pipeline (33), control stop valve (11), reclaim through recovery channel (26) again, recycle.
When carrying out the calibrating of water meter or small-bore water ga(u)ge, then replace heavy caliber water ga(u)ge calibrating section (25), carry out associative operation and finish with small-bore water ga(u)ge calibrating section (34).
Fig. 2 provides a specific embodiment that is applicable to narrower and small place, can be used for the measurement verification work of water ga(u)ge, the above second-class following metal tank of 10L and the special tank body of (15～150) mm bore.。Wherein, work measuring instrument group (1) is selected each one in third-class 2000L and second-class 1000L, 500L (300L), 100L (50L), 20L (10L) measuring device from left to right successively for use, and wherein the above two metering neck is designed to offset, and back three is designed to Pear-Shaped.Connect by stop valve (35) etc. between each measuring device, measuring device both can separately have been used, can use as integral body again; The commutator group (5) of measuring device top is made up of two commutators.One commutator is used for the switching of current different directions between two measuring devices, and another commutator is used for when whole a use done in the series connection of two measuring devices, and switching liquid stream injects measuring device with water or gives off outside the tank body; Each measuring device metering neck is provided with double scale; Each tank body is equipped with surveys jar thermometer (24) of interior temperature; Tapping valve (23) is a T-valve, is used for connecting the calibrating pipeline, or observes the drip state of measuring device or the zero value or the discharge opeing of definite measuring device.
Water system (2) is squeezed into the water in pond (17) in the water tower (18) by upper hose (20) by water pump (19), and the water of overflow is flow back in the pond (17) by run-down pipe (21).Water tower has overflow situation in the whole process, to guarantee the water pressure invariableness of system.
Pipe system (3) is made up of big small-bore water ga(u)ge calibrating section (25) or (34), recovery channel (26), calibrating pipeline (33) and filtrator (28).The corresponding pipeline section of heavy caliber water ga(u)ge calibrating section (25) straight length by stop valve (9), rectifier (27), tong-test ammeter platform (29), pressure gauge (30), thermometer (31), water ga(u)ge (7), pressure port (32), one group of flow regulation indicator (8), water inlet bend pipe (36), nozzle (37) and before and after comprising is formed, and it uses 2000L, 1000L, 500L (300L) measuring device as the work measuring instrument group.Small-bore discharge calibrating section (34) uses 500L (300L), 100L (50L), 20L (10L) measuring device as the work measuring instrument group.The instrument and equipment title that two calibrating sections adopt is identical, model specification difference, the requirement of straight length 20D, back straight length 15D before all satisfying.Recovery channel (26) is done the pipeline two parts that reclaim use by Drainage pipe (6) and calibrating pipeline (33) and is formed.The water that overflows when the water that Drainage pipe (6) is mainly discharged measuring device by T-valve (23) water, commutator group are discharged, measuring device canful or the water of other purposes are collected and are recycled.One group of flow regulation indicator (8) is made up of the flowmeter of different flow scope.In order to guarantee to examine and determine the accuracy of automobile test tank, calibrating pipeline (33) should be arranged to skewed until stop valve (11), and an end that makes it connect stop valve (10) is lower slightly than the other end.
Control desk (4) contains timer, counter, gauge tap and button, is used to control the switching of commutator, the calendar scheduling in the commutation process.
Fig. 3 provides an embodiment of measuring device metering neck double scale structure.Among the figure, vernier scale is made up of main scale (39) and complementary scale (13).
Fig. 4 provides an embodiment of measuring device T-valve structure.Among the figure, the valve upper end is used to connect the measuring device bottom outlet, and two side ends one end of valve is used for connecting the calibrating pipeline, and an end opening is in order to observe drip state or the definite zero value or the discharge opeing of measuring device.Two side ends is controlled by reversing lever, and which side reversing lever is pulled to, and which side valve port is open; When handle was positioned at the centre position, two side valve ports all were in closed condition.
Claims (4)
1, composite water flow calibration facility, mainly form by work measuring instrument group (1), water system (2), pipe system (3), control desk (4) and commutator group (5), it is characterized in that: pass through stop valve series connection such as (35) between one group of work measuring instrument, the horizontal level (16) of going up metering neck lowest part of measuring device reduces successively one by one by the order from amount of capacity, makes and realizes between measuring device being used in combination.
2, composite water flow calibration facility according to claim 1 is characterized in that: the scale at measuring device metering neck place is a double scale, and wherein a scale is vernier scale (13), is made up of main scale (39) and complementary scale (13); Another scale is definite value scale (12), and the main groove of definite value scale provides with volumetric values, and is carved with corresponding upper and lower franchise line.
3, composite water flow calibration facility according to claim 1, it is characterized in that: the tapping valve of measuring device is T-valve (23), the valve upper end connects the measuring device bottom, and a side connects the calibrating pipeline, and another side opening is in order to observe drip state or the definite zero value or the discharge opeing of measuring device.
4, composite water flow calibration facility according to claim 1, it is characterized in that: calibrating pipeline (33) exit in its pipe system (3) is a three-way pipeline, control by stop valve (10) (11), its another branch that can do recovery channel (26) is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420007232 CN2684169Y (en) | 2004-03-18 | 2004-03-18 | Water flow integrated standard apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420007232 CN2684169Y (en) | 2004-03-18 | 2004-03-18 | Water flow integrated standard apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2684169Y true CN2684169Y (en) | 2005-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420007232 Expired - Lifetime CN2684169Y (en) | 2004-03-18 | 2004-03-18 | Water flow integrated standard apparatus |
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| Country | Link |
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| CN (1) | CN2684169Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106698A (en) * | 2018-02-09 | 2018-06-01 | 中国计量大学 | A kind of vehicle-mounted single water tank type oil field water meter field calibration device and calibration method |
| CN111879377A (en) * | 2020-07-24 | 2020-11-03 | 广州能源检测研究院 | Standard metal measuring device capacity calibration result compensation method considering bubble discharge capacity |
| CN112304397A (en) * | 2019-07-31 | 2021-02-02 | 北京振兴计量测试研究所 | Micro flow reversing and volume measuring device |
-
2004
- 2004-03-18 CN CN 200420007232 patent/CN2684169Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106698A (en) * | 2018-02-09 | 2018-06-01 | 中国计量大学 | A kind of vehicle-mounted single water tank type oil field water meter field calibration device and calibration method |
| CN112304397A (en) * | 2019-07-31 | 2021-02-02 | 北京振兴计量测试研究所 | Micro flow reversing and volume measuring device |
| CN111879377A (en) * | 2020-07-24 | 2020-11-03 | 广州能源检测研究院 | Standard metal measuring device capacity calibration result compensation method considering bubble discharge capacity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140318 Granted publication date: 20050309 |
|
| DD01 | Delivery of document by public notice |
Addressee: Fu Chuanwei Document name: Notification of Expiration of Patent Right Duration |