CN202793472U - Single phase liquid microscale flowmeter - Google Patents

Single phase liquid microscale flowmeter Download PDF

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Publication number
CN202793472U
CN202793472U CN 201220331371 CN201220331371U CN202793472U CN 202793472 U CN202793472 U CN 202793472U CN 201220331371 CN201220331371 CN 201220331371 CN 201220331371 U CN201220331371 U CN 201220331371U CN 202793472 U CN202793472 U CN 202793472U
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China
Prior art keywords
liquid
pipe
flowmeter
opening
phase liquid
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CN 201220331371
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Chinese (zh)
Inventor
林光荣
刘学刚
刘秋兰
高春宁
屈雪峰
王东旭
高微
韩翼云
荣春龙
于忠平
任肇才
尹鹏
杜朝峰
周波
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Petrochina Co Ltd
China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
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Priority to CN 201220331371 priority Critical patent/CN202793472U/en
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Abstract

The utility model provides a single phase liquid microscale flowmeter comprising a liquid temporary storage tube, a metering pump and a collecting control device. The liquid temporary storage tube is of a U shape. A liquid level detector is arranged on a first opening of the upper end of the liquid temporary storage tube. A liquid inlet port is arranged on the lateral wall of the liquid temporary storage tube. The inlet end of the metering pump is connected with a second opening of the upper end of the liquid temporary storage tube through a hose. The outlet end of the metering pump is connected to a liquid storage cylinder through a liquid drainage tube. An optical-electricity encoder is arranged on a motor shaft of the metering pump. The collecting control device is electrically connected with the liquid level detector, the metering pump and the optical-electricity encoder. According to the single phase liquid microscale flowmeter, instant and cumulative flow can be metered when cores are displaced, metering accuracy is improved and defects of the prior art are overcome.

Description

A kind of single-phase liquid trace flowmeter
Technical field
The utility model relates to a kind of rock core physical property proving installation, especially a kind of a kind of single-phase liquid trace flowmeter of the instantaneous and integrated flow can measure rock core displacement the time.
Background technology
At present, use for laboratory is in the rock core displacement flow rate test, and metering method adopts the artificial stopwatch of pinching to read graduated cylinder or then be converted into volume with electronic balance weighing mostly.
Wherein, the graduated cylinder measuring accuracy is not high, and human factor is many, and error is large, need to wait for for a long time during measurement, and labour intensity is very large; Although the electronic balance metering can realize online automatic gauge, but it needs accurately to measure stabilization time, and static measurement guarantee precision, this method only is suitable for static measurement, because the experimental liquid in this field mostly is continuous flow, in the situation of continuous or lasting feed liquor, liquid flows always and is in unsteady state, measuring accuracy just can not well guarantee, particularly for the sample of hyposmosis, because flow velocity is little, the liquid that container takes up is volatile, also causes easily larger error in dipping.In addition, electronic balance has limit of range, and needs open-top receptacle access fluid, has limited the electronic balance metering, makes it can not realize unconfined continuous on-line metering.
Because the defective that above-mentioned known technology exists, the design people develops a kind of single-phase liquid trace flowmeter of the present utility model according to the Production design experience of being engaged in for many years this area and association area.
The utility model content
The purpose of this utility model is to be to provide a kind of single-phase liquid trace flowmeter, and the instantaneous and integrated flow in the time of measuring rock core displacement improves measuring accuracy, to overcome the defective of prior art.
For this reason, the utility model proposes a kind of single-phase liquid trace flowmeter, it includes: the temporary pipe of a liquid, and it is a U-shaped pipe, the first opening of the temporary pipe of described liquid upper end is inserted with a level sensor, then offers a feed liquor interface on its sidewall; One volume pump, its inlet end is connected in temporary the second opening of managing the upper end of described liquid by a flexible pipe, and its endpiece then is connected to a liquid container by a drain connection, is provided with a photoelectric encoder on the motor shaft of described volume pump; One acquisition control device is electrically connected with described level sensor, volume pump and photoelectric encoder.
Aforesaid single-phase liquid trace flowmeter, wherein, the second opening of the temporary pipe of described liquid further is provided with one and injects adapter, and the end that described injection is taken over is arranged in the temporary pipe of described liquid, its other end then protrudes out described the second opening, and is connected with described flexible pipe.
Aforesaid single-phase liquid trace flowmeter wherein, is respectively equipped with a rubber plug on the first opening of the temporary pipe of described liquid and the second opening, and described level sensor and described injection adapter correspondence wear and be fixed on the two described rubber plugs.
Aforesaid single-phase liquid trace flowmeter, wherein, it is T shape pipe that described injection is taken over, it includes a horizontal pipeline section and a vertical pipeline section, and an end of described horizontal pipeline section is openend, and is connected with described flexible pipe, its other end is blind end, one end of described vertical pipeline section is connected in the middle section of described horizontal pipeline section, and its other end is the corresponding rubber plug that wears described the second opening part then, and is arranged in the temporary pipe of described liquid.
Aforesaid single-phase liquid trace flowmeter, wherein, described single-phase liquid trace flowmeter further includes housing, and described liquid is kept in pipe, volume pump and acquisition control device and is placed in the described housing, and described liquid container is positioned at outside the described housing.
Aforesaid single-phase liquid trace flowmeter, wherein, described acquisition control device is a single-chip microcomputer.
The single-phase liquid trace flowmeter that the utility model proposes, by being connected with rock core evaluation test driving device, can overcome the drawback of prior art, make collection and quantifier integrated, further improved measuring accuracy, realize instantaneous metering and the cumulative measurement of rock core displacement flow rate test, reach the purpose of continuous on-line metering, can be widely used in the experiment measuring in oil scientific research institutions and each laboratory, oil field.
In addition, the single-phase liquid trace flowmeter that the utility model proposes in use can also be connected with computer system, thereby calculates the Test Liquid Permeability of Core of rock, further enlarged the scope of application, the full-automation that is implemented in the operation of rock core displacement flow rate test is processed.
Description of drawings
Fig. 1 is the structural representation of single-phase liquid of the present utility model trace flowmeter, demonstration be annexation between liquid temporary pipe, volume pump and the liquid container;
Fig. 2 is the fundamental diagram of single-phase liquid trace flowmeter of the present utility model.
The main element label declaration:
Embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast description of drawings embodiment of the present utility model:
Fig. 1 is the syndeton synoptic diagram of single-phase liquid of the present utility model trace flowmeter, being the temporary pipe of liquid, volume pump and storing annexation between the cylinder of demonstration; Fig. 2 is the fundamental diagram of single-phase liquid trace flowmeter of the present utility model.
Referring to Fig. 1, Fig. 2, a kind of single-phase liquid trace flowmeter that the utility model proposes, it includes a liquid temporary pipe 1, one volume pump 2 and an acquisition control device 3.Wherein, the temporary pipe 1 of described liquid is a U-shaped pipe, and the first opening 11 of its upper end is inserted with a level sensor 4, then offers a feed liquor interface 12 on its sidewall; The inlet end 21 of described volume pump 2 is connected in the second opening 13 of the temporary pipe of described liquid 1 upper end by a flexible pipe 22,23 of its endpiece are connected to a liquid container 5 by a drain connection 24, are provided with a photoelectric encoder (not shown) on the motor shaft of described volume pump 2; Described acquisition control device 3, can be a single-chip microcomputer, with described volume pump 2, level sensor 4 and photoelectric encoder are electrically connected, high liquid level or low liquid level signal that it transmits according to level sensor 4, can send suction or termination of pumping instruction to volume pump 2, duty with control volume pump 2, photoelectric encoder then passes through the tach signal of the motor shaft of collection volume pump, detect instantaneous delivery and the integrated flow of volume pump, and the numerical value of its measurement is sent to acquisition control device with Output rusults, the principle of work of this collection control technology and photoelectric encoder is prior art, and therefore not to repeat here.Wherein, this volume pump in use, preferable flow rate is the volume pump of 0.01~10ml/min.
Wherein, the second opening 13 of the temporary pipe 1 of described liquid further is provided with one and injects adapter 14, and an end of described injection adapter 14 is arranged in the temporary pipe 1 of described liquid, and its other end then protrudes out described the second opening 13, and is connected with described flexible pipe 22.
Further, be respectively equipped with a rubber plug 15,16 on the first opening 11 of the temporary pipe 1 of described liquid and the second opening 13, described level sensor 4 and described injection are taken over 14 correspondences and are worn and be fixed on the two described rubber plugs 15,16.
Preferred embodiment be, it is T shape pipe that described injection takes over 14, it includes a horizontal pipeline section 141 and a vertical pipeline section 142, one end of described horizontal pipeline section 141 is openend, and be connected with described flexible pipe 22, its other end is blind end, an end of described vertical pipeline section 142 is connected in the middle section of described horizontal pipeline section 141, its other end is the corresponding rubber plug 16 that wears described the second opening 13 places then, and is arranged in the temporary pipe 1 of described liquid.
In order further to protect each parts; prevent from occurring at work damaging; described single-phase liquid trace flowmeter further includes housing 6, and the temporary pipe 1 of described liquid, volume pump 2 and acquisition control device 3 are placed in the described housing 6, and described liquid container 5 is positioned at outside the described housing 6.In use, the temporary pipe of this liquid and volume pump can be placed in the housing by known manner such as support, holder or chucks, holding position in use to fix.
Please in the lump referring to Fig. 2, the single-phase liquid trace flowmeter that the utility model proposes, when specific works, in advance at a certain amount of liquid of liquid temporary pipe 1 interior placement, and adjust level sensor 4 and inject the height of adapter 14 in pipe, make the bottom (trigger end) of level sensor 4 be positioned at the temporary liquid level place of managing 1 liquid of liquid, with as at the critical localisation that triggers level sensor work, and the other end (lower end) that injects the vertical pipeline section 142 of adapter 14 places below the liquid level, simultaneously the feed liquor interface of the temporary pipe 1 of liquid is connected to the liquid outlet of rock core evaluation test driving device by pipe joint; When rock core generation displacement is reacted, the liquid that its displacement goes out enters in the temporary pipe 1 of liquid by pipe joint, then cause liquid level in the temporary pipe 1 of liquid change (liquid level rising), and flood the lower end of level sensor 4, send the high signal of liquid level to trigger level sensor 4 to acquisition control device 3, acquisition control device 3 is after receiving the high signal of this liquid level, then send the suction instruction to volume pump 2, liquid with rock core displacement injection in the temporary pipe 1 of extracting liquid, and enter in the liquid container, when the liquid level in the temporary pipe 1 of liquid is got back to this critical localisation, 4 of level sensors send one to acquisition control device 3 and hang down liquid level signal, acquisition control device 3 is after receiving low liquid level signal, can send the termination of pumping instruction to volume pump 2, so repeatedly, the liquid that goes out with continuous suction rock core displacement, in addition, in volume pump 2 courses of work, photoelectric encoder then passes through the tach signal of the motor shaft of collection volume pump 2, detect instantaneous delivery and the integrated flow of volume pump, and pass to acquisition control device 3 outputs during with fructufy, thus accurately calculate the transient liquid flowmeter integrated flow that rock core displacement goes out, finish the measurement to rock core displacement liquid.
The single-phase liquid trace flowmeter that the utility model proposes, adopt the method for liquid level in the temporary pipe of control liquid, the amount of liquid that rock core displacement is gone out measures, this displacement liquid can be oil or water, level sensor can both reliable detection, so the utility model can be used for the metering of the rock core displacement of reservoir oil or expelling water test; Inlet end by volume pump is connected with the second interface of the temporary pipe of liquid, and its endpiece directly links the mode of liquid container, and compared with prior art, the utility model can be realized continuous on-line metering; Acquisition control device adopts single-chip microcomputer as core observing and controlling element, and observing and controlling is accurate, for accurate measurement provides technical assurance.
It is to be noted, for the utility model, because it adopts the scm observe and control technology, therefore, the utility model can work alone, and can connect computer work again, and it carries out exchanges data by RS232 communications protocol and computer, and in conjunction with computer software, also can be used for the accurate on-line metering of the widely core analysis tests such as Test Liquid Permeability of Core.
The above only is the schematic embodiment of the utility model, is not to limit scope of the present utility model.Any those skilled in the art, the equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.

Claims (7)

1. a single-phase liquid trace flowmeter is characterized in that, described single-phase liquid trace flowmeter includes:
The temporary pipe of one liquid, it is a U-shaped pipe, the first opening of the temporary pipe of described liquid upper end is inserted with a level sensor, then offers a feed liquor interface on its sidewall;
One volume pump, its inlet end is connected in temporary the second opening of managing the upper end of described liquid by a flexible pipe, and its endpiece then is connected to a liquid container by a drain connection, is provided with a photoelectric encoder on the motor shaft of described volume pump;
One acquisition control device is electrically connected with described level sensor, volume pump and photoelectric encoder.
2. single-phase liquid as claimed in claim 1 trace flowmeter, it is characterized in that, the second opening of the temporary pipe of described liquid further is provided with one and injects adapter, the end that described injection is taken over is arranged in the temporary pipe of described liquid, its other end then protrudes out described the second opening, and is connected with described flexible pipe.
3. single-phase liquid as claimed in claim 2 trace flowmeter, it is characterized in that, be respectively equipped with a rubber plug on the first opening of the temporary pipe of described liquid and the second opening, described level sensor and described injection adapter correspondence wear and are fixed on the two described rubber plugs.
4. single-phase liquid as claimed in claim 3 trace flowmeter, it is characterized in that, it is T shape pipe that described injection is taken over, it includes a horizontal pipeline section and a vertical pipeline section, and an end of described horizontal pipeline section is openend, and is connected with described flexible pipe, its other end is blind end, one end of described vertical pipeline section is connected in the middle section of described horizontal pipeline section, and its other end is the corresponding rubber plug that wears described the second opening part then, and is arranged in the temporary pipe of described liquid.
5. such as each described single-phase liquid trace flowmeter of claim 1 to 4, it is characterized in that, described single-phase liquid trace flowmeter further includes housing, described liquid is kept in pipe, volume pump and acquisition control device and is placed in the described housing, and described liquid container is positioned at outside the described housing.
6. single-phase liquid trace flowmeter as claimed in claim 5 is characterized in that described acquisition control device is a single-chip microcomputer.
7. such as each described single-phase liquid trace flowmeter of claim 1 to 4, it is characterized in that described acquisition control device is a single-chip microcomputer.
CN 201220331371 2012-07-09 2012-07-09 Single phase liquid microscale flowmeter Active CN202793472U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220331371 CN202793472U (en) 2012-07-09 2012-07-09 Single phase liquid microscale flowmeter

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Application Number Priority Date Filing Date Title
CN 201220331371 CN202793472U (en) 2012-07-09 2012-07-09 Single phase liquid microscale flowmeter

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104929613A (en) * 2014-03-21 2015-09-23 韩文峰 Pressure-variable-free flowmeter
CN105424149A (en) * 2015-11-12 2016-03-23 中国石油集团西部钻探工程有限公司 Weighing meter used for semipermeable separating plate core displacing fluid
CN105510388A (en) * 2015-11-25 2016-04-20 中国科学院电工研究所 Wearable apparatus for detecting pH value of sweat

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104929613A (en) * 2014-03-21 2015-09-23 韩文峰 Pressure-variable-free flowmeter
CN105424149A (en) * 2015-11-12 2016-03-23 中国石油集团西部钻探工程有限公司 Weighing meter used for semipermeable separating plate core displacing fluid
CN105510388A (en) * 2015-11-25 2016-04-20 中国科学院电工研究所 Wearable apparatus for detecting pH value of sweat
CN105510388B (en) * 2015-11-25 2019-01-08 中国科学院电工研究所 Wearable sweat pH value detection device

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