CN207197607U - A kind of high accuracy measuring system for chilled water high-low flow great fluctuation process - Google Patents
A kind of high accuracy measuring system for chilled water high-low flow great fluctuation process Download PDFInfo
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- CN207197607U CN207197607U CN201721267676.2U CN201721267676U CN207197607U CN 207197607 U CN207197607 U CN 207197607U CN 201721267676 U CN201721267676 U CN 201721267676U CN 207197607 U CN207197607 U CN 207197607U
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- Prior art keywords
- flowmeter
- motor
- bypass pipe
- driven valve
- measuring system
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Abstract
The utility model discloses a kind of high accuracy measuring system for chilled water high-low flow great fluctuation process, and it includes being used for the main pipeline for conveying cold water, and a bypass pipe has been arranged in parallel on the main pipeline；The bypass pipe caliber is less than main pipeline；The bypass pipe water inlet end is provided with the first motor-driven valve；The bypass pipe mountain is provided with first flowmeter；The second motor-driven valve and second flowmeter are provided with the main pipeline；Second motor-driven valve is between bypass pipe two-port；First motor-driven valve, first flowmeter, the second motor-driven valve, second flowmeter are all connected with controller.When solving big-diameter pipeline conveying cold water low discharge, the influence to caused by the flowmeter accuracy of measuring；While ensureing measurement instrument measuring accuracy, pipeline pressure is not lost.
Description
Technical field
The utility model belongs to energy source technical field, specially a kind of height for chilled water high-low flow great fluctuation process
Accuracy measurement system.
Background technology
In energy supply industry, the pipe design of cold water is for the consideration to the resistance of ducting, the reference flow of selection
Maximum stream flow, often caliber is larger for the pipeline designed, and in actual cold feed, larger stream will not be kept for a long time
Amount.When low discharge is supplied, because pipeline is larger, flow velocity is relatively low, and flowmeter is difficult often to detect flow of fluid, and then to flowmeter
Measuring accuracy cause large effect, be unfavorable for the quantitative statisticses of the energy.Pipe with small pipe diameter big flow is also easy to produce existing for tradition
Larger duct pressure loss, and Large Diameter Pipeline low discharge easily reduces flow measurement precision.
Utility model content
The purpose of this utility model is to be directed to problem above, there is provided a kind of Gao Zhun for chilled water high-low flow great fluctuation process
Exactness measuring system, when conveying cold water low discharge to solve big-diameter pipeline, the influence to caused by the flowmeter accuracy of measuring；Protect
While demonstrate,proving measurement instrument measuring accuracy, pipeline pressure is not lost.
To realize object above, the technical solution adopted in the utility model is：One kind is used for the big ripple of chilled water high-low flow
Dynamic high accuracy measuring system, it includes being used for the main pipeline 1 for conveying cold water, and one has been arranged in parallel on the main pipeline 1
Bypass pipe 2；The caliber of bypass pipe 2 is less than main pipeline 1；The water inlet end of bypass pipe 2 is provided with the first motor-driven valve 4；The side
The mountain of siphunculus 2 is provided with first flowmeter 5；The second motor-driven valve 6 and second flowmeter 7 are provided with the main pipeline 1；Described second
Motor-driven valve 6 is located between the two-port of bypass pipe 2；First motor-driven valve 4, first flowmeter 5, the second motor-driven valve 6, second flow
Meter 7 is all connected with controller 8.
Further, the second flowmeter 7 is located on the outside of the water side of bypass pipe 2.
Further, the water side of bypass pipe 2 is also equipped with hand-operated valve 3；The first flowmeter 5 is apart from water inlet end hand
The distance of dynamic valve 3 is more than 10 times of internal diameters of bypass pipe 2, and the distance apart from water side hand-operated valve 3 is more than 5 times of internal diameters of bypass pipe 2.
Further, the hand-operated valve 3 is Hand-operated butterfly valve.
Further, first motor-driven valve 4, the second motor-driven valve 6 are electric butterfly valve.
Further, the first flowmeter 5, second flowmeter 7 are electromagnetic flowmeter.
Further, button and display screen are provided with the controller 8.
The beneficial effects of the utility model：
The utility model can be realized in the case where not losing pipeline pressure, greatly improve Large Diameter Pipeline low flow condition
Under measuring accuracy, there is provided energize the accuracy rate of statistics.
Low discharge predetermined value can be adjusted by the button on controller in the utility model, be made a reservation for by the low discharge of setting
Value sets the opening/closing time of the first motor-driven valve 4 and the second motor-driven valve 6 to realize, flexible and convenient to use.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram.
In figure：1st, main pipeline；2nd, bypass pipe；3rd, hand-operated valve；4th, the first motor-driven valve；5th, first flowmeter；6th, second is electronic
Valve；7th, second flowmeter；8th, controller.
Embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings to this reality
Be described in detail with new, the description of this part be only it is exemplary and explanatory, should not be to the scope of protection of the utility model
There is any restriction effect.
As shown in figure 1, concrete structure of the present utility model is：A kind of high precision for chilled water high-low flow great fluctuation process
Measuring system is spent, it includes being used for the main pipeline 1 for conveying cold water, and a bypass pipe 2 has been arranged in parallel on the main pipeline 1；Institute
State the caliber of bypass pipe 2 and be less than main pipeline 1；The water inlet end of bypass pipe 2 is provided with the first motor-driven valve 4；The mountain of bypass pipe 2 is set
There is first flowmeter 5；The second motor-driven valve 6 and second flowmeter 7 are provided with the main pipeline 1；Second motor-driven valve 6 is located at
Between the two-port of bypass pipe 2；First motor-driven valve 4, first flowmeter 5, the second motor-driven valve 6, second flowmeter 7 are all connected with controlling
Device 8 processed.
Preferably, the second flowmeter 7 is located on the outside of the water side of bypass pipe 2.It can effectively ensure that and damaged in first flowmeter 5
Bad when, moreover it is possible to which flow detection is carried out by second flowmeter 7.
Preferably, the water side of bypass pipe 2 is also equipped with hand-operated valve 3；The first flowmeter 5 is manual apart from water inlet end
The distance of valve 3 is more than 10 times of internal diameters of bypass pipe 2, and the distance apart from water side hand-operated valve 3 is more than 5 times of internal diameters of bypass pipe 2.Can be effective
Ensure that the flow for flowing through first flowmeter 5 belongs to current stabilization state, improve the measurement data degree of accuracy of first flowmeter 5.
Preferably, the hand-operated valve 3 is Hand-operated butterfly valve, and Hand-operated butterfly valve is easy to operate, and control is reliable and stable.
Preferably, first motor-driven valve 4, the second motor-driven valve 6 are electric butterfly valve.
Preferably, the first flowmeter 5, second flowmeter 7 are electromagnetic flowmeter.Electromagnetic flowmeter controls reaction speed
It hurry up, accurate measurement is stable.
Preferably, button and display screen are provided with the controller 8.Button can be used for setting low discharge threshold values；Display
Screen can show the low discharge threshold values of setting, current traffic data, using the flowmeter of counting be the parameter such as which.
The utility model principle：
When specifically used, hand-operated valve 3 is in normally open, when second flowmeter 7 detects that present flow rate is relatively low, will flow
Amount signal is transferred to the circuit board in controller, and circuit board control opens the first motor-driven valve 4, closes the second motor-driven valve 6, use side
Siphunculus 2 carries out cold feed, and present flow rate is detected using first flowmeter 5；When first flowmeter 5 detects that present flow rate is higher
When, the first motor-driven valve 4 is closed in circuit board control, opens the second motor-driven valve 6, and cold feed is carried out using main pipeline.
By the low discharge threshold values of setting, controller automatically controls first flowmeter 5, second flowmeter 7 and alternately counted, the
One motor-driven valve 4, the second motor-driven valve 6 are alternately opened and closed.
When need when equipment is overhauled on bypass pipe 1, close hand-operated valve 3, supplied using main pipeline, ensure end
End energy.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or equipment including a series of elements not only include those key elements, and
And also include the other element being not expressly set out, or also include for this process, method, article or equipment institute inherently
Key element.
Specific case used herein is set forth to principle of the present utility model and embodiment, above example
Illustrate that being only intended to help understands method and its core concept of the present utility model.Described above is only of the present utility model preferred
Embodiment, it is noted that due to the finiteness of literal expression, and unlimited concrete structure objectively be present, for this technology
For the those of ordinary skill in field, on the premise of the utility model principle is not departed from, some improvement, retouching can also be made
Or change, above-mentioned technical characteristic can also be combined by rights；These improve retouching, change or combination, or not
It is improved that the design of utility model and technical scheme are directly applied into other occasions, it is regarded as protection of the present utility model
Scope.
Claims (7)
1. a kind of high accuracy measuring system for chilled water high-low flow great fluctuation process, it includes being used for the supervisor for conveying cold water
Road（1）, it is characterised in that the main pipeline（1）On be arranged in parallel a bypass pipe（2）；The bypass pipe（2）Caliber is less than
Main pipeline（1）；The bypass pipe（2）Water inlet end is provided with the first motor-driven valve（4）；The bypass pipe（2）Mountain is provided with first-class
Gauge（5）；The main pipeline（1）On be provided with the second motor-driven valve（6）And second flowmeter（7）；Second motor-driven valve（6）Position
In bypass pipe（2）Between two-port；First motor-driven valve（4）, first flowmeter（5）, the second motor-driven valve（6）, second flow
Meter（7）It is all connected with controller（8）.
2. a kind of high accuracy measuring system for chilled water high-low flow great fluctuation process according to claim 1, it is special
Sign is, the second flowmeter（7）Positioned at bypass pipe（2）On the outside of water side.
3. a kind of high accuracy measuring system for chilled water high-low flow great fluctuation process according to claim 1, it is special
Sign is, the bypass pipe（2）Water side is also equipped with hand-operated valve（3）；The first flowmeter（5）Apart from water inlet end hand-operated valve
（3）Distance be more than 10 times of bypass pipes（2）Internal diameter, apart from water side hand-operated valve（3）Distance be more than 5 times of bypass pipes（2）Internal diameter.
4. a kind of high accuracy measuring system for chilled water high-low flow great fluctuation process according to claim 3, it is special
Sign is, the hand-operated valve（3）For Hand-operated butterfly valve.
5. a kind of high accuracy measuring system for chilled water high-low flow great fluctuation process according to claim 1, it is special
Sign is, first motor-driven valve（4）, the second motor-driven valve（6）For electric butterfly valve.
6. a kind of high accuracy measuring system for chilled water high-low flow great fluctuation process according to claim 1, it is special
Sign is, the first flowmeter（5）, second flowmeter（7）For electromagnetic flowmeter.
7. a kind of high accuracy measuring system for chilled water high-low flow great fluctuation process according to claim 1, it is special
Sign is, the controller（8）On be provided with button and display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721267676.2U CN207197607U (en) | 2017-09-29 | 2017-09-29 | A kind of high accuracy measuring system for chilled water high-low flow great fluctuation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721267676.2U CN207197607U (en) | 2017-09-29 | 2017-09-29 | A kind of high accuracy measuring system for chilled water high-low flow great fluctuation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207197607U true CN207197607U (en) | 2018-04-06 |
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ID=61787366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721267676.2U Expired - Fee Related CN207197607U (en) | 2017-09-29 | 2017-09-29 | A kind of high accuracy measuring system for chilled water high-low flow great fluctuation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207197607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358171A (en) * | 2021-06-01 | 2021-09-07 | 泰州建源仪表有限公司 | NB-IOT intelligent water meter with sensitive water quantity counting |
-
2017
- 2017-09-29 CN CN201721267676.2U patent/CN207197607U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358171A (en) * | 2021-06-01 | 2021-09-07 | 泰州建源仪表有限公司 | NB-IOT intelligent water meter with sensitive water quantity counting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180406 |