CN208833343U - A kind of flow capacity checking device - Google Patents
A kind of flow capacity checking device Download PDFInfo
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- CN208833343U CN208833343U CN201821306481.9U CN201821306481U CN208833343U CN 208833343 U CN208833343 U CN 208833343U CN 201821306481 U CN201821306481 U CN 201821306481U CN 208833343 U CN208833343 U CN 208833343U
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- flow
- flowmeter
- capacity checking
- checking device
- flow capacity
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Abstract
The utility model provides a kind of flow capacity checking device, and the flow capacity checking device is connect with flowmeter to be measured, and the flow capacity checking device includes enforcement division, electric control part, and the electric control part is connect with enforcement division, and the enforcement division is connect with flowmeter to be measured；The enforcement division includes sequentially connected pump, pressure regulator valve, reference flowmeter；The pressure regulator valve is connect with pump, reference flowmeter respectively, and the reference flowmeter is connect by infusion pipeline with flowmeter to be measured；Flow capacity checking device described in the utility model, structure is simple, is conducive to simplify the relevant operation during flow capacity checking, reduces the manufacturing cost of flow capacity checking device；In addition, the flow capacity checking device utilizes reference flowmeter, and treat flow measurement meter after stability of flow by regulating flow and checked, it is advantageously ensured that the accuracy of flow capacity checking.
Description
Technical field
The utility model relates to a kind of flow capacity checking devices.
Background technique
With the development of fluid transfer technology practical, the device that flowmeter is detected as fluid flow is answered extensively
With.
Most of fluid delivery tube roads are provided with flowmeter at present, are with agent dispenser with the washing in washing machine
Example, liquid scrubbing is conveyed with agent；In the prior art, in order to control the injected volume of washing agent, often lead to
It crosses and corresponding flowmeter is set in associated pipe, for obtaining the dispensing flow of washing agent；Correspondingly, in other areas
It also tends to that corresponding flowmeter is arranged in pipeline, for detecting the flow of fluid, in order to control the actual flow of fluid；
For the associated production manufacturer of flowmeter, before flowmeter factory, need to flow flowmeter accordingly
Amount is checked, but since the flow capacity checking method of each production firm is different, corresponding flow capacity checking device is also not quite similar；And its
In often to there is a situation where the structure of flow capacity checking device and check method excessively complicated, while when can not ensure flow capacity checking
Accuracy.
Therefore, the utility model proposes a kind of flow capacity checking devices.
Utility model content
In view of this, the utility model is directed to a kind of flow capacity checking device, to solve flow capacity checking in the prior art
The structure of device is complex, the poor problem of the accuracy of flow capacity checking.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of flow capacity checking device, the flow capacity checking device are connect with flowmeter to be measured, the flow capacity checking device packet
Enforcement division, electric control part are included, the electric control part is connect with enforcement division, and the enforcement division is connect with flowmeter to be measured；
The enforcement division includes sequentially connected pump, pressure regulator valve, reference flowmeter；The pressure regulator valve respectively with pump, benchmark
Flowmeter connection, the reference flowmeter are connect by infusion pipeline with flowmeter to be measured.
Further, the standard flow is calculated as flowmeter or flow sensor.
Further, the enforcement division includes water tank, and the water tank and pump connect, and the water outlet and water of flowmeter to be measured
Case connection.
Further, the enforcement division includes flow control valve, and the flow control valve is arranged in pressure regulator valve and reference flow
On pipeline between meter, and flow control valve is connect with pressure regulator valve, reference flowmeter respectively.
Further, the enforcement division includes water pressure gauge, and the water pressure gauge is arranged between pressure regulator valve and flow control valve
Pipeline on.
Further, the enforcement division includes at least one flow control valve, any one flow control valve respectively with tune
Pressure valve, reference flowmeter connection, and be to be arranged in parallel between flow control valve.
Further, the enforcement division includes at least one reference flowmeter, the flow control valve and reference flowmeter
It corresponds, and reference flowmeter is connected with corresponding flow control valve；Any reference flowmeter is connect with infusion pipeline.
Further, the enforcement division includes point inspection branch, between point inspection branch and water pressure gauge, the flow control valve
Pipeline connection, point inspection branch road are provided with an inspection valve.
Further, the electric control part includes central processing unit, man-machine interactive system, power switch, the central processing
Device is connect with man-machine interactive system, power switch respectively；The central processing unit is at least connected with pump.
Preferably, the man-machine interactive system is touch screen.
Compared with the existing technology, a kind of flow capacity checking device described in the utility model, has the advantage that
A kind of flow capacity checking device described in the utility model, the structure of the flow capacity checking device is simple, is conducive to letter
Change the relevant operation during flow capacity checking, reduces the manufacturing cost of flow capacity checking device；In addition, the flow capacity checking device benefit
It treats flow measurement meter after stability of flow with reference flowmeter, and by regulating flow and is checked, it is advantageously ensured that flow
The accuracy of check.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is a kind of schematic diagram of flow capacity checking device described in the utility model embodiment；
Fig. 2 is a kind of a kind of schematic diagram of flow capacity checking device described in the utility model embodiment；
Fig. 3 is a kind of another schematic diagram of flow capacity checking device described in the utility model embodiment；
Fig. 4 is a kind of structural schematic diagram of flow capacity checking device described in the utility model embodiment.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.It should be noted that not carrying out
In the case where any specific explanation explanation, during arrow direction of the utility model in reference attached drawing is flow capacity checking
Water (flow) direction.
Embodiment 1
As shown in Fig. 1, the utility model provides a kind of flow capacity checking device, the flow capacity checking device with to measurement of discharge
Meter connection, the flow capacity checking device includes enforcement division, electric control part, and the electric control part is connect with enforcement division, the enforcement division and
Flowmeter connection to be measured；
The enforcement division includes sequentially connected pump, pressure regulator valve, reference flowmeter；The pressure regulator valve respectively with pump, benchmark
Flowmeter connection, the reference flowmeter are connect by infusion pipeline with flowmeter to be measured.
Wherein, pump, pressure regulator valve, reference flowmeter, infusion pipeline, flowmeter to be measured are sequentially connected, and pump, pressure regulator valve, base
It is connected by water pipeline between quasi- flowmeter；The flow capacity checking device is opened, provides flowing to check water by pump
Power, check passes through pressure regulation valve regulation hydraulic pressure with water, while pressure regulator valve controls water flow to a certain extent, passes through base
Quasi- flow flowmeter detects the water flow in water pipeline；In order to ensure the accuracy of flow capacity checking, the reference flow
Amount is calculated as flowmeter or flow sensor, and in legal metering validation activity by measurement verification, calibration.
The flowmeter to be measured is connect by infusion pipeline with flow capacity checking device, and flow to be measured is calculated as in the prior art often
The flowmeter of rule, specific structure, working principle and the prior art are all the same, herein without repeating.Check passes through base with water
Quasi- flowmeter flows into infusion pipeline, and passes through flowmeter to be measured, then flows out from the water outlet of flowmeter to be measured；To water flow
After amount reaches preset flow value, and flow shown by reference flowmeter and flowmeter to be measured is stable, standard flow is judged
The difference of flow value shown by meter shown flow value and flowmeter to be measured, if meet flow threshold；It is, then to measurement of discharge
The flow capacity checking of meter is qualified；No, then the flow capacity checking of flowmeter to be measured is unqualified.
The flow capacity checking device structure proposed in the present embodiment is simple, is conducive to simplify the related behaviour during flow capacity checking
Make, reduces the manufacturing cost of flow capacity checking device；In addition, the flow capacity checking device utilizes reference flowmeter, and pass through regulation
Flow is treated flow measurement meter and is checked after stability of flow, it is advantageously ensured that the accuracy of flow capacity checking.
Embodiment 2
In order to avoid the waste of water resource, the present embodiment carries out circulation benefit with water on the basis of embodiment 1, to check
With specifically:
The enforcement division includes water tank, and the water tank and pump connect, and the water outlet of flowmeter to be measured is connected to water tank.School
Core water flows out after flowmeter to be measured from the water outlet of flowmeter to be measured, flows into water tank via related water route, Huo Zheshui
The lower section of the water outlet of flowmeter to be measured is arranged in case, and check water is fallen directly into after the outflow of the water outlet of flowmeter to be measured
In water tank.
Pump extracts the water in water tank simultaneously, to realize during carrying out flow capacity checking to check water
It recycles.
Embodiment 3
The present embodiment is further improved flow capacity checking device on the basis of embodiment 1 or embodiment 2, tool
Body:
The enforcement division further includes blowing pipe, and the blowing pipe is connect with infusion pipeline；Or the blowing pipe
Water pipeline between reference flowmeter, pressure regulator valve is connect.
After treating flow measurement meter progress flow capacity checking, in order to remove the residual in flowmeter to be measured and associated pipe
Water, by the way that blowing pipe is connect with external air source, and closing pressure-regulating valve, make air from blowing pipe enter infusion pipeline or
In water pipeline between reference flowmeter, pressure regulator valve, the residual water in flowmeter to be measured and associated pipe is blown out；The outside
Gas source can be the conventional feeder in the prior art such as air bag, air pump.
In addition, gas circuit valve is provided in the blowing pipe, in flow capacity checking in order to not influence the progress of flow capacity checking
During progress, external air source and gas circuit valve remain closing；After flow capacity checking, external air source and gas circuit are opened
Valve is removed residual water.
Embodiment 4
As shown in Fig. 2, the present embodiment carries out into one flow capacity checking device on the basis of embodiment 1 or embodiment 2
The improvement of step, specific:
The enforcement division includes flow control valve, and the flow control valve is arranged between pressure regulator valve and reference flowmeter
On pipeline, and flow control valve is connect with pressure regulator valve, reference flowmeter respectively.
Due to only being regulated and controled by pressure regulator valve to flow, being easy to appear in the technical solution of embodiment 1 or embodiment 2
The case where flowed fluctuation, occurs, and is unfavorable for accurately controlling flow, influences the stabilization that reference flowmeter reads flow value
Property, to influence check result；Therefore, flow control valve is arranged in the present embodiment between pressure regulator valve, reference flowmeter, to flowing through
Water flow after pressure regulator valve is further controlled, and can effectively ensure that the stability of water flow, can be effectively to base
The flow detection precision of quasi- flowmeter is ensured, the accuracy for improving flow capacity checking is conducive to.
Embodiment 5
As shown in Fig. 3, in order to further increase the accuracy of flow capacity checking, water flow is avoided to press after pressure regulator valve
Situations such as fluctuation, impacts flow capacity checking, and the present embodiment carries out flow capacity checking device on the basis of embodiment 4
It is further to improve, specific:
The enforcement division includes water pressure gauge, and the water pressure gauge is arranged on the pipeline between pressure regulator valve and flow control valve.
In water flow after pressure regulator valve, by the way that water pressure gauge is arranged, hydraulic pressure is read using water pressure gauge, verification personnel can pass through
The hydraulic pressure that water pressure gauge is read can avoid stream caused by water pressure fluctuations to regulate and control to flow control valve to the full extent
It measures unstable situation to occur, makes the reference flowmeter positioned at pipe line downstream, flowmeter to be measured that can be in hydraulic pressure, a flow
In metastable environment, be conducive to the accuracy for improving flow capacity checking.
Embodiment 6
As shown in Fig. 4, for the ease of being checked to the traffic conditions under different liquids flow status, it is ensured that check
Accuracy, the present embodiment are further improved flow capacity checking device on the basis of embodiment 4, specific:
The enforcement division includes at least one flow control valve, any one flow control valve respectively with pressure regulator valve, benchmark
Flowmeter connection, and be to be arranged in parallel between flow control valve；
The flow capacity checking device further includes at least one reference flowmeter, the flow control valve and reference flowmeter one
One is corresponding, and reference flowmeter is connected with corresponding flow control valve；Any reference flowmeter is connect with infusion pipeline.
By flow control valve and corresponding standard flow that multiple parallel connections are arranged between pressure regulator valve, reference flowmeter
Meter is avoided according to different traffic conditions using different ranges or the reference flowmeter of precision because unity reference flowmeter exists
The detection error occurred under individual special traffic conditions (such as minimum flow), not only contributes to meet in the case of different flow
Check demand, and ensure to the check accuracy in the case of different flow.
In addition, it is contemplated that the influence that water pressure fluctuations carry out flow control valve control strip, is arranged in the water outlet of pressure regulator valve
Water pressure gauge, for obtaining the pressure of the water after pressure regulator valve, and after water pressure gauge reads hydraulic pressure, water pipeline is divided into parallel transistor
Net；As the preferred embodiment of the present embodiment, parallel pipeline includes two parallel pipelines, wherein according to water (flow) direction, a parallel connection
First flow control valve, the first reference flowmeter are set gradually on pipeline, for carrying out checking procedure under small traffic conditions；Separately
Second flow control valve, the second reference flowmeter are set gradually on one parallel pipeline, for carrying out school under heavy traffic condition
Test process.
The enforcement division further includes an inspection branch, and the pipeline between the point inspection branch and water pressure gauge, flow control valve connects
It is logical, inspection branch can also be considered as to the Article 3 parallel pipeline in parallel pipeline, point inspection branch road is provided with an inspection valve.
When carrying out flow verification under small traffic conditions, first flow control valve is kept to open, closes second flow control
Valve, point inspection valve；When carrying out flow verification under heavy traffic condition, second flow control valve is kept to open, closes first flow
Control valve, point inspection valve；When carrying out inspection to flow calibration itself, opening point inspection valve examines needs according to actual point
To control the open/close states of first flow control valve, second flow control valve.
Embodiment 7
In order to improve the degree of automation of the flow capacity checking device in actual use, the flow capacity checking device
It further include electric control part, the electric control part is connect with enforcement division；The electric control part includes central processing unit, man-machine interactive system, electricity
Source switch, the central processing unit are connect with man-machine interactive system, power switch respectively；The central processing unit also at least with pump
Connection；Further, central processing unit is also connect with flow control valve, reference flowmeter, flowmeter to be measured, wherein flow control
Valve is solenoid valve, and reference flowmeter and flowmeter to be measured are flow sensor；
Flow capacity checking device it is specifically used during, personnel are by flowmeter and flow capacity checking to be measured to be verified for verification
Device connection touches power switch, and inputs check data information, such as flow, time, number etc. by man-machine interactive system
Check data, central processing unit obtain check data information, and according to check data information, control the operation or flow control of pump
Valve opening and closing situation of valve etc.；Central processing unit obtains traffic conditions by reference flowmeter, flowmeter to be measured in real time simultaneously, to
The flow that reference flowmeter is read reaches preset flow value, and the flow measured by reference flowmeter with by flowmeter to be measured
After the flow measured is stable, central processing unit judges shown by flow value shown by reference flowmeter and flowmeter to be measured
Flow value difference, if meet flow threshold；It is then to control man-machine interactive system to show that the flow capacity checking of flowmeter to be measured closes
Lattice；It is no, then it controls man-machine interactive system and shows that the flow capacity checking of flowmeter to be measured is unqualified.
As the preferred embodiment of the present embodiment, the man-machine interactive system can be touch screen, also may include display screen
With input key, user inputs relevant information to flow calibration by touch screen or input key；Flow calibration is logical
Touch screen or display screen are crossed, shows corresponding check information to user.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of flow capacity checking device, the flow capacity checking device is connect with flowmeter to be measured, which is characterized in that the flow school
Nuclear device includes enforcement division, electric control part, and the electric control part is connect with enforcement division, and the enforcement division is connect with flowmeter to be measured；
The enforcement division includes sequentially connected pump, pressure regulator valve, reference flowmeter；The pressure regulator valve respectively with pump, standard flow
Meter connection, the reference flowmeter are connect by infusion pipeline with flowmeter to be measured.
2. a kind of flow capacity checking device as described in claim 1, which is characterized in that the standard flow is calculated as flowmeter or stream
Quantity sensor.
3. a kind of flow capacity checking device as described in claim 1, which is characterized in that the enforcement division includes water tank, the water
Case and pump connect, and the water outlet of flowmeter to be measured is connected to water tank.
4. a kind of flow capacity checking device as described in claim 1, which is characterized in that the enforcement division includes flow control valve,
The flow control valve is arranged on the pipeline between pressure regulator valve and reference flowmeter, and flow control valve respectively with pressure regulator valve,
Reference flowmeter connection.
5. a kind of flow capacity checking device as claimed in claim 4, which is characterized in that the enforcement division includes water pressure gauge, described
Water pressure gauge is arranged on the pipeline between pressure regulator valve and flow control valve.
6. a kind of flow capacity checking device as claimed in claim 4, which is characterized in that the enforcement division includes at least one flow
Control valve, any one flow control valve are connect with pressure regulator valve, reference flowmeter respectively, and are that parallel connection is set between flow control valve
It sets.
7. a kind of flow capacity checking device as claimed in claim 6, which is characterized in that the enforcement division includes at least one benchmark
Flowmeter, the flow control valve and reference flowmeter correspond, and reference flowmeter is connected with corresponding flow control valve；
Any reference flowmeter is connect with infusion pipeline.
8. a kind of flow capacity checking device as claimed in claim 6, which is characterized in that the enforcement division includes point inspection branch, institute
The pipeline connection between inspection branch and water pressure gauge, flow control valve is stated, point inspection branch road is provided with an inspection valve.
9. a kind of flow capacity checking device as described in claim 1, which is characterized in that the electric control part include central processing unit,
Man-machine interactive system, power switch, the central processing unit are connect with man-machine interactive system, power switch respectively；The center
Processor is at least connected with pump.
10. a kind of flow capacity checking device as claimed in claim 9, which is characterized in that the man-machine interactive system is touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821306481.9U CN208833343U (en) | 2018-08-14 | 2018-08-14 | A kind of flow capacity checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821306481.9U CN208833343U (en) | 2018-08-14 | 2018-08-14 | A kind of flow capacity checking device |
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| Publication Number | Publication Date |
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| CN208833343U true CN208833343U (en) | 2019-05-07 |
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ID=66309173
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| CN201821306481.9U Active CN208833343U (en) | 2018-08-14 | 2018-08-14 | A kind of flow capacity checking device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758546A (en) * | 2021-09-23 | 2021-12-07 | 深圳市质量安全检验检测研究院 | Flowmeter calibrating device and method and flowmeter assembly to be measured |
-
2018
- 2018-08-14 CN CN201821306481.9U patent/CN208833343U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758546A (en) * | 2021-09-23 | 2021-12-07 | 深圳市质量安全检验检测研究院 | Flowmeter calibrating device and method and flowmeter assembly to be measured |
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