CN1273806C - Closed circuit type highly effective energy conservation flow calibration apparatus by employing standard meter method - Google Patents
Closed circuit type highly effective energy conservation flow calibration apparatus by employing standard meter method Download PDFInfo
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- CN1273806C CN1273806C CN03139721.2A CN03139721A CN1273806C CN 1273806 C CN1273806 C CN 1273806C CN 03139721 A CN03139721 A CN 03139721A CN 1273806 C CN1273806 C CN 1273806C
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Abstract
The present invention proposes a circulation loop type efficient energy saving flow calibration device for a standard meter method, which comprises a water pump (1), a pipeline (2) and a meter measuring pipe segment (3), wherein the meter measuring pipe segment (3) is provided with a standard flow meter (31) and a measured meter segment (32). The pipeline (2) is a circulation pipeline, and the water pump (1) and the meter measuring pipe segment (3) are respectively embedded into the pipeline (2) to be connected into a circulation loop. The present invention overcomes the shortcomings that the calibration device has high energy consumption and low efficiency in the prior art and realizes the purpose of collecting the dynamic energy produced by water flow in the process of the circulation. Thus, the present invention has less energy loss and low noise. Moreover, the water flow produced by the device of the present invention is far larger than the water flow produced by the current device so that the work efficiency of the flow calibration device is greatly enhanced under the same condition. Simultaneously, the present invention has advantages of compact structure and high work efficiency so that the present invention has fewer occupation areas and low manufacturing cost of equipment.
Description
Technical field
The invention belongs to the flow calibration device, belong to method of standard table flow calibration device especially.
Background technology
Method of standard table flow calibration device is a device of demarcating flowmeter accuracy to be checked with the proving flowmeter of high level of precision.
What early stage flow calibration adopted is that volumetric method is demarcated, and promptly is to allow the fluid tested flowmeter of flowing through enter in the bulk container, and the liquid volume of measuring vessel inner accumulated after a period of time calculates flow again and carries out flow calibration.This method is accurate but original, the time-consuming consumption power of calibration process.And to satisfy the flow calibration of different size flowmeter, require container that enough big capacity will be arranged, so the floor area of this kind flow calibration device is generally all very big.Be widely used comparatively advanced method of standard table flow calibration device in recent years and adopt open water-flow circuit, its generally by: reserve tank, pipeline, water pump, exhaust apparatus, proving flowmeter and inspection table platform etc. are formed.When operation device, water at first by water pump from reserve tank suction pipeline, flow back to reserve tank again through facilities such as proving flowmeter and inspection table platforms.In this water cycle process, the conversion of energy at first is electric energy changes into water by the water pump major part kinetic energy and a potential energy; Some energy changed into heat energy and noise when water flowed in the loop; When current were got back to reserve tank, the energy conversion of remainder was a heat energy and by full consumption.Energy can not get recycling in the whole calibrating procedure of water, and big portion is consumed into heat energy and noise, and its consequence is the big and inefficiency of water temperature height, noise; Can influence the stated accuracy of flowmeter simultaneously, cause the working site noise pollution serious; The high energy consumption of package unit has determined its inefficiency.
According to data, the normal stream scale method flow calibration device of the open water-flow circuit of one of fabrication and installation cover at the beginning of 2000, use through the operations in 3 years, a lot of problems and shortcomings have been found: nearly 0.478 kilowatt/cube of power consumption, water consumption is many, reach 3 tons weekly, noise can reach more than 75 decibels during work, and the staff need wear anti-noise earphone and could work; Water temperature is too high during running, and summer is indoor up to 50 ℃, influences stated accuracy; Current easily produce turbulent flow, timing signal waveform instability etc.
In addition, the structure of the open flow calibration device of prior art has determined that also its floor area is big, the defective that output investment ratio is higher; The caliberating device of common discharge remains in the problems referred to above, for the caliberating device of big flow and super-flow, how to keep low energy consumption, low noise, and takes up an area of fewly, invest for a short time, becomes the problem greatly of one in the flow calibration.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art caliberating device high energy consumption poor efficiency, and propose a kind of closed circuit formula high-efficiency and energy-saving type method of standard table flow calibration device.This method of standard table flow calibration device adopts the mode that pipeline, water pump, proving flowmeter and measuring meter range is connected to become closed circuit, and to the recovery of water flow dynamic energy, energy loss is little, noise is low in the realization cyclic process; Under the same consumption energy condition, the discharge that apparatus of the present invention produce is much larger than the discharge that prior-art devices produced, thereby improves the work efficiency of flow calibration device greatly.Simultaneously because of compact conformation of the present invention, high efficiency, so floor area is less, equipment manufacturing cost is low.
Purpose of the present invention can reach by taking following technical measures:
Design, a kind of closed circuit formula high-efficiency and energy-saving type method of standard table flow calibration device of manufacturing comprise water pump, pipeline and measuring meter range; Described measuring meter range is provided with proving flowmeter and measuring meter range again; It is characterized in that: described pipeline is a circulating line; Described water pump and measuring meter range embed described pipeline respectively, are connected to become closed circuit.
Description of drawings
Fig. 1 is a closed circuit formula high-efficiency and energy-saving type method of standard table flow calibration device of the present invention
Organigram.
Embodiment
Below in conjunction with accompanying drawing in detail embodiments of the invention are described in detail.
A kind of closed circuit formula high-efficiency and energy-saving type method of standard table flow calibration device comprises water pump 1, pipeline 2 and measuring meter range 3; Described measuring meter range is provided with proving flowmeter 31 and measuring meter range 32 again; It is characterized in that: described pipeline 2 is circulating line; Described water pump 1 and measuring meter range 3 embed described pipeline 2 respectively, are connected to become closed circuit.Drive water circulation by water pump in the working cycle process, electric energy is changed into the kinetic energy and the potential energy of water by water pump; Because in pipeline, can not return reserve tank, but directly enter next cyclic process, realize recovery to water flow dynamic energy through a water that circulates; This device energy loss reduces like this, the temperature rise of water significantly reduces, and the noise that closed conduct produces also reduces simultaneously; Because the temperature rise of water is little, because of the water temperature height, water evaporates is fast in the conventional apparatus, causes the more problem of water consumption also to be eased.Under the same consumption energy condition, the discharge that the present invention produces is much larger than the discharge that prior-art devices produced, thereby solved the demarcation problem of big flow, large diameter pipeline, significantly improved the work efficiency of flow calibration device.Such structure itself has also determined whole apparatus structure compactness, less, the reduced investment of floor area.
This device also comprises water inlet pipe 4 and the exhaust apparatus 5 that is connected with described pipeline 2.The flow calibration device requires the water in the pipeline to want cleaning, no bubble and keep certain pressure when operation, and this is very important for the dependable flow stated accuracy.Pipeline 2 is connected with water inlet pipe and can be in time the water of pipeline is replenished, pressurizes; In the time of the water inlet pipe moisturizing, exhaust apparatus carries out exhaust, can in time the bubble that produces in the water cycle process be given off pipeline.Water inlet pipe 4 and exhaust apparatus 5 have been connected on the pipeline 2, the reliable and stable staking-out work of finishing tested flowmeter accurately of assurance device better.
This device also comprises at least one rectifier 7 that is installed in the described pipeline 2.Rectifier can be eliminated the turbulent flow in the pipeline, reduces because of the harmful effect of turbulent flow to the flow stated accuracy.
Described water pump 1 is built-in axial flow submersible pump.Select built-in axial flow submersible pump to be because the selection of its installation site is more flexible.In some other embodiment, also can select the water pump of other types for use, as in-line pump or centrifugal pump etc.; Also water pump can be selected to be installed in different pipeline sections.
This device also comprises the variable-frequence governor that is connected with described water pump 1.The accurate demarcation of tested flowmeter also has certain relation with factors such as the flow velocity of current in the pipeline, flows, use variable-frequence governor can control the rotating speed of pump motor reposefully, and then the flow of control water pump, control the effective while and can also reduce the energy consumption of water pump.
Described measuring meter range 32 is provided with meter-clamping apparatus and inspection table interface.In order to adapt to the different types of traffic meter, as the calibrating needs of electromagnetic flowmeter, ultrasonic flow meter, eddy-current flowmeter etc., apparatus of the present invention are provided with calibrating facilities such as corresponding inspection table interface and special-purpose tong-test ammeter utensil at measuring meter range 32.
This device also comprises the moisturizing auxiliary pump 6 that is connected with described water inlet pipe 4.The purpose that pipeline 2 connects water inlet pipe is exactly that timely water to pipeline replenishes, pressurizes; Exhaust apparatus carries out exhaust in the time of the water inlet pipe moisturizing, can in time the bubble that produces in the water cycle process be given off pipeline.Stablize, finish reliably, accurately the staking-out work of tested flowmeter to guarantee this device.Water inlet pipe 4 is used for work such as moisturizing, pressurization, and different embodiments can be arranged, and as the reserve tank of a suitable volume can be installed above whole device, utilizes the potential energy of water in the water tank to produce hydraulic pressure; Perhaps stablize, be supplied with the place of guarantee, directly use modes such as tap water can reach desirable effect at tap water pressure.Present embodiment has used high-lift, a low power water pump to be used as the watering of moisturizing, supercharging.
Normal stream scale method flow calibrating device phase with the open water-flow circuit of aforementioned prior art Relatively, the method for standard table flow calibrating device embodiment of making designed according to this invention produces one cube The energy consumption of rice discharge only is 0.01 kilowatt, and water consumption is weekly 0.5 ton; Noise is about 50 during work Decibel, noise pollution alleviates greatly; The water temperature that can exert an influence to stated accuracy also significantly reduces, and is basic Maintain room temperature and spend in a narrow margin fluctuation in the so individual interval than room temperature high 5; This covering device compact conformation accounts for Ground area be 1/5th of ad eundem prior art flow calibrating device, cost be about its 1/3rd.
Claims (6)
1, a kind of closed circuit formula high-efficiency and energy-saving type method of standard table flow calibration device comprises water pump (1), pipeline (2) and measuring meter range (3); Described measuring meter range is provided with proving flowmeter (31) and measuring meter range (32) again; It is characterized in that:
Also comprise the water inlet pipe (4) and the exhaust apparatus (5) that are connected with described pipeline (2);
Described pipeline (2) is a circulating line; Described water pump (1) and measuring meter range (3) embed described pipeline (2) respectively, are connected to become closed circuit.
2, method of standard table flow calibration device according to claim 1 is characterized in that:
Also comprise at least one rectifier (7) that is installed in the described pipeline (2).
3, method of standard table flow calibration device according to claim 2 is characterized in that:
Described water pump (1) is built-in axial flow submersible pump.
4, method of standard table flow calibration device according to claim 3 is characterized in that:
Also comprise the variable-frequence governor that is connected with described water pump (1).
5, method of standard table flow calibration device according to claim 4 is characterized in that:
Described measuring meter range (32) is provided with meter-clamping apparatus and inspection table interface.
6, method of standard table flow calibration device according to claim 1 is characterized in that:
Also comprise the moisturizing auxiliary pump (6) that is connected with described water inlet pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03139721.2A CN1273806C (en) | 2003-07-04 | 2003-07-04 | Closed circuit type highly effective energy conservation flow calibration apparatus by employing standard meter method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03139721.2A CN1273806C (en) | 2003-07-04 | 2003-07-04 | Closed circuit type highly effective energy conservation flow calibration apparatus by employing standard meter method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1566908A CN1566908A (en) | 2005-01-19 |
| CN1273806C true CN1273806C (en) | 2006-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN03139721.2A Expired - Fee Related CN1273806C (en) | 2003-07-04 | 2003-07-04 | Closed circuit type highly effective energy conservation flow calibration apparatus by employing standard meter method |
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| Country | Link |
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| CN (1) | CN1273806C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230817A (en) * | 2011-03-18 | 2011-11-02 | 西北工业大学 | Recycled two-phase flow flowmeter calibrating platform of wet steam |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152958A (en) * | 2017-06-06 | 2017-09-12 | 重庆川仪自动化股份有限公司 | Mass flowmeter calibration detecting system and method based on multinomial algorithm |
-
2003
- 2003-07-04 CN CN03139721.2A patent/CN1273806C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230817A (en) * | 2011-03-18 | 2011-11-02 | 西北工业大学 | Recycled two-phase flow flowmeter calibrating platform of wet steam |
| CN102230817B (en) * | 2011-03-18 | 2012-09-26 | 西北工业大学 | Recycled two-phase flow flowmeter calibrating platform of wet steam |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1566908A (en) | 2005-01-19 |
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Owner name: SHENZHEN CITY JIANHENG MEASUREMENT + CONTROL CO., Free format text: FORMER NAME: SHENZHEN JIANHENG INDUSTRIAL AUTOMATION SYSTEM CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: Shenzhen Nanshan District science and Technology Park, seven South Road, T3 building, A District, 2 floor Patentee after: GENTOS MCASUREMENT & CONTROL Co.,Ltd. Address before: Guangdong city of Shenzhen province Futian District Tairan Industrial Park Tairan industrial building four floor East Patentee before: Shenzhen Jianheng Industrial Automation System Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060906 Termination date: 20170704 |
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| CF01 | Termination of patent right due to non-payment of annual fee |