CN210343324U - Ultrasonic flowmeter - Google Patents
Ultrasonic flowmeter Download PDFInfo
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- CN210343324U CN210343324U CN201920115070.XU CN201920115070U CN210343324U CN 210343324 U CN210343324 U CN 210343324U CN 201920115070 U CN201920115070 U CN 201920115070U CN 210343324 U CN210343324 U CN 210343324U
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Abstract
The utility model relates to an ultrasonic flowmeter, which comprises a rope cap, a first centralizer, a circuit testing short section, a pressure sensor short section, a flow sensor short section, a second centralizer and a lower protective cap which are connected in sequence; the flow sensor short section comprises a first ultrasonic probe and a second ultrasonic probe. The problems of low precision, short measuring time and low reliability of the conventional flowmeter are mainly solved.
Description
Technical Field
The utility model relates to a measuring instrument field especially relates to an ultrasonic flowmeter.
Background
Oilfield flooding is an important means for supplementing energy to the stratum, maintaining the pressure of the stratum, improving the recovery ratio of the oilfield and maintaining the stable yield and high yield of the oilfield in the oilfield development process. At present, most oil fields in China are developed by adopting a water flooding mode, and the water flooding development is still the main mode for oil field development even for a long time in the future. Therefore, the excellent water injection effect has very important significance for scientific exploitation of oil fields. In the water injection operation process, the underground water injection flow and the water injection pressure are two parameters which are mainly referred to the water injection effect, and the accurate measurement of the two data is an important step for researching the dynamic characteristics in the water injection process and checking the ground water injection process flow, and has important significance for analyzing whether the water injection achieves the expected effect.
There are many testing methods and measuring devices for measuring the flow and pressure of water injection process, among which, the flowmeter is the main measuring instrument. The conventional flowmeter often has the condition that the actual operation process is greatly different from or inconsistent with the operation plan when measuring the downhole flow, and the process of water injection flow change cannot be completely presented when the downhole measurement time is too short, namely a few hours is less and a dozen hours is more. In addition, the stratum in the water injection process is complex and changeable, and underground water injection can be influenced by various conditions such as impurities, mineralization, salinity, high-pressure impact and the like, and the reliability and the precision of the flowmeter are influenced.
Disclosure of Invention
In order to solve the above-mentioned problem that exists among the prior art, the utility model provides an ultrasonic flowmeter. The to-be-solved technical problem of the utility model is realized through following technical scheme:
an ultrasonic flowmeter comprises a rope cap, a first centralizer, a circuit testing short section, a pressure sensor short section, a flow sensor short section, a second centralizer and a lower protective cap which are sequentially connected;
the flow sensor short section comprises a first ultrasonic probe and a second ultrasonic probe.
In a specific embodiment, the rope cap, the first centralizer, the circuit testing nipple, the pressure sensor nipple, the flow sensor nipple, the second centralizer and the lower protection cap are in threaded connection, and a sealing rubber ring is arranged at the joint.
In one embodiment, the first centralizer comprises,
the battery cathode is arranged at one end, close to the rope cap, in the first centralizer;
the battery plug is arranged at one end, close to the circuit testing short section, in the first centralizer;
a battery casing;
and a battery accommodating cavity is formed among the battery cathode, the battery plug and the battery protective barrel and used for accommodating a battery.
And the first righting plate spring is arranged on the outer side of the battery protective cylinder.
In one embodiment, the circuit test sub comprises:
a circuit protection cylinder;
the battery socket, the circuit board and the circuit framework are arranged in the circuit protection cylinder;
one end of the battery socket is connected with the battery plug, the other end of the battery socket is connected with the circuit board, and the circuit board is arranged on the circuit framework.
In one embodiment, the circuit board includes a single chip and a memory.
In one embodiment, the pressure sensor sub comprises:
the pressure sensor is connected with the single chip microcomputer;
and the pressure guide sealing plug is fixedly arranged on the outer side of the pressure sensor.
In a specific embodiment, the flow sensor sub further comprises:
the first ultrasonic probe and the second ultrasonic probe are correspondingly arranged at two ends of the measuring pipe of the water inlet pool;
the first ultrasonic probe and the second ultrasonic probe are both connected with the single chip microcomputer.
In one embodiment the second centralizer comprises:
a weight bar;
and the second righting plate spring is arranged on the outer side of the weighting rod.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model provides an ultrasonic flowmeter adopts integrated configuration, reasonable in design, and simple structure is exquisite, does not have mechanical transmission part, antidetonation, resistance to compression, and is not fragile, and used material is high temperature resistant, corrosion-resistant, and battery pack is located first centralizer, and it is convenient to change, easy to maintain, instrument long service life.
2. The utility model provides an ultrasonic flowmeter adopts the multi-functional singlechip of high accuracy, when guaranteeing accurate conversion flow, pressure, has reduced the use of external circuit component by a wide margin, has reached the purpose of simplifying circuit structure, reducing consumption and reinforcing instrument operational reliability. In addition, the instrument hardware adopts a power supply monitor and a watchdog technology, and the software adopts multi-stage safety protection measures, so that the working stability and reliability of the flowmeter are ensured.
3. The utility model provides an ultrasonic flowmeter adopts the ultrasonic wave principle of testing the speed, does not receive liquid impurity and high-pressure impact environment influence in the pit, and the stable performance is reliable, and ultrasonic transducer all adopts high sensitivity piezoceramics ultrasonic transducer, and the interference killing feature is strong, measures more accurately.
4. The ultrasonic flowmeter provided by the utility model adopts the high-energy high-temperature lithium sulfurous battery, and the battery does not need to be activated and can be used for a long time; in addition, the expanded mass storage can be repeatedly erased and written, the data has an encryption function, the storage is safe and reliable, the measurement and storage of single-layer and multi-layer flow and pressure data are met, and the device can continuously work and use for a long time.
Drawings
Fig. 1 is a schematic structural diagram of an ultrasonic flow meter according to an embodiment of the present invention;
fig. 2 is a basic schematic block diagram of an ultrasonic flow meter according to an embodiment of the present invention.
The reference numbers illustrate: 1-rope socket, 2-battery negative pole, 3-battery protects a section of thick bamboo, 4-right leaf spring, 5-battery, 6-battery plug, 7-battery socket, 8-circuit skeleton, 9-circuit board, 10-circuit protects a section of thick bamboo, 11-pressure sensor, 12-pressure guide sealing plug, 13-first ultrasonic probe, 14-the survey buret of intaking, 15-second ultrasonic probe, 16-right leaf spring, 17-the weight pole, 18-lower protect the cap, 19-first centralizer, 20-circuit test nipple joint, 21-pressure sensor nipple joint, 22-flow sensor nipple joint, 23-second centralizer.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the present invention is not limited thereto.
The utility model provides an ultrasonic flowmeter, mainly by cap with a rope 1, first centralizer 19, circuit test nipple joint 20, pressure sensor nipple joint 21, flow sensor nipple joint 22, second centralizer 23 and lower helmet 18 connect gradually through the thread sealing connected mode and constitute, 1 screw thread of cap with a rope of fixed steel wire that the instrument was used is connected with first centralizer 19 when connecting and transferring, the other end of first centralizer 19 links to each other with circuit test end nipple joint 20, pressure sensor nipple joint 21 is connected to circuit test nipple joint 20 other end, the pressure sensor nipple joint 21 other end links to each other with flow sensor nipple joint 22, the flow sensor nipple joint is connected with second centralizer 23 again, will protect cap 18 to connect at the back at second centralizer nipple joint 23 at last, each junction all is equipped with O type fluorine rubber sealing rubber ring, the flowmeter that prevents that can be fine is intake. The schematic diagram of the instrument is shown in fig. 1.
The first centralizer 19 is mainly composed of a battery protective cylinder 3, a battery cathode 2 and a battery plug 6 which are arranged at two ends of the battery protective cylinder 3, and a centralizing plate spring 4 in a sealing way, wherein the battery cathode 2 is arranged at one end, close to the rope cap 1, in the first centralizer 19; the battery plug 6 is arranged at one end of the first centralizer 19 close to the circuit testing short section 20, and adopts an aviation plug; a battery accommodating cavity is formed among the battery cathode 2, the battery plug 6 and the battery protective barrel 3 and used for accommodating the battery 5. The battery 5 adopts a specific high-energy high-temperature lithium sulfur battery, can meet the long-time measurement requirement, does not need to be activated, can be directly used, and is convenient to replace and easy to maintain. The battery protective cylinder 3 is made of stainless steel materials, so that the battery can be effectively protected; the righting leaf spring 4 can keep the instrument centered.
The circuit testing short section 20 comprises a circuit protection cylinder 10, and a battery socket 7, a circuit board 9 and a circuit framework 8 which are arranged in the circuit protection cylinder 10; the battery socket 7 is a navigation socket matched with the battery plug 6 in the first centralizer 19, one end of the battery socket is butted with the battery plug 6, and the other end of the battery socket is connected with the circuit board 9. The circuit board 9 is installed on the circuit framework 8 and comprises a single chip microcomputer and a memory. The single chip microcomputer adopts a multifunctional single chip microcomputer ADUC847 with a multi-channel 24-bit high-precision AD, the use of external circuit elements is greatly reduced while the accurate flow and pressure conversion is ensured, and the purposes of simplifying a circuit structure, reducing power consumption and enhancing the working reliability of an instrument are achieved. The memory adopts a nonvolatile 1MB memory chip 24LC1025 which can be repeatedly erased and written for more than 10 ten thousand times, the number of measurement points reaches more than 1 ten thousand, the data can be safely and reliably stored, the measurement and storage of single-layer and multi-layer flow and pressure data are met, and the memory can be continuously operated and used for a long time. In addition, a power supply monitor and a watchdog technology are adopted on instrument hardware, and multi-stage safety protection measures are adopted on software, so that the working stability of the flowmeter is also ensured. The whole PCB can normally and continuously work at the high temperature of 150 ℃, the circuit protection cylinder 10 can bear the pressure of 80MPa in the process of going into the well, and the joints of the two ends of the circuit test pup joint 20 are respectively provided with two O-shaped fluororubber sealing rubber rings, so that the circuit is well protected.
The pressure sensor nipple 21 is internally provided with a pressure sensor 11 and a pressure taking port, and the outer side of the pressure sensor nipple is fixedly provided with a pressure guide sealing plug 12. The pressure sensor 11 is connected with the single chip microcomputer, and the measured pressure information is transmitted to the single chip microcomputer, processed and stored in the memory.
The flow sensor short section 22 comprises a water inlet measuring pipe 14, and a first ultrasonic probe 13 and a second ultrasonic probe 15 which are correspondingly arranged at two ends of the water inlet measuring pipe 14, and the two probes are connected with the single chip microcomputer. The ultrasonic probe adopts a piezoelectric ceramic ultrasonic probe CSTT-200, and the sensitivity is as high as 2.5mV/m3Has good stability, small volume, high precision,The flowmeter has the advantages of long service life, strong anti-interference performance and the like, greatly improves the precision and the service life of the flowmeter, and can ensure that the precision of the flowmeter reaches 1 percent.
The second centralizer 23 comprises a weighted rod 17 to ensure smooth instrument lowering and a centralizing leaf spring 16 to keep the instrument centered and stabilize the water flow in the intake measuring tube 14.
When the ultrasonic flowmeter is used, a user can set various parameters such as the testing sampling time of the flowmeter before water injection construction according to the actual working condition environment, and then the user connects a steel wire and goes down to an underground designated position. And after the water injection construction is started, the ultrasonic flowmeter starts to work. Under the drive of the circuit, the pressure sensor and the flow sensor respectively measure the water injection pressure and the water injection flow, transmit signals to the single chip microcomputer, and store the signals in the memory after processing. In the water injection construction process, the ultrasonic flowmeter continuously measures, processes and stores pressure and flow data according to set parameters, and realizes continuous dynamic monitoring and real-time sampling in the construction process; and after the water injection construction is finished, taking out the ultrasonic flowmeter from the water injection pipe column, directly connecting the ultrasonic flowmeter with a computer through playback equipment, playing back the acquired flow and pressure data to the computer, drawing a curve, processing the curve, printing a result and the like.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (5)
1. An ultrasonic flow meter, comprising: the device comprises a rope cap (1), a first centralizer (19), a circuit testing short section (20), a pressure sensor short section (21), a flow sensor short section (22), a second centralizer (23) and a lower protective cap (18) which are connected in sequence; wherein the first centralizer (19) comprises:
the battery cathode (2) is arranged at one end, close to the rope cap (1), in the first centralizer (19);
the battery plug (6) is arranged at one end, close to the circuit testing short section (20), in the first centralizer (19);
a battery casing (3); and a righting plate spring (4) arranged outside the battery protective cylinder (3); a battery accommodating cavity is formed among the battery cathode (2), the battery plug (6) and the battery protective barrel (3) and is used for accommodating a battery (5); the battery (5) is a high-energy high-temperature lithium sulfur battery;
the circuit testing sub (20) comprises:
a circuit protection tube (10); the battery socket (7), the circuit board (9) and the circuit framework (8) are arranged in the circuit protection cylinder (10); the circuit board (9) comprises a singlechip and a memory;
one end of the battery socket (7) is connected with the battery plug (6), the other end of the battery socket is connected with the circuit board (9), and the circuit board (9) is arranged on the circuit framework (8);
the flow sensor short joint (22) comprises a first ultrasonic probe (13) and a second ultrasonic probe (15); the first ultrasonic probe (13) and the second ultrasonic probe (15) are both connected with the single chip microcomputer; the first ultrasonic probe (13) and the second ultrasonic probe (15) are both piezoelectric ceramic ultrasonic probes.
2. An ultrasonic flow meter according to claim 1, characterised in that the rope cap (1), the first centralizer (19), the circuit testing sub (20), the pressure sensor sub (21), the flow sensor sub (22), the second centralizer (23) and the lower protection cap (18) are in threaded connection, and a sealing rubber ring is arranged at the connection.
3. An ultrasonic flow meter according to claim 1, wherein the pressure sensor sub (21) comprises:
the pressure sensor (11) is connected with the single chip microcomputer;
and the pressure guide sealing plug (12) is fixedly arranged on the outer side of the pressure sensor.
4. An ultrasonic flow meter according to claim 1, wherein the flow sensor sub (22) further comprises:
intake survey buret (14), first ultrasonic transducer (13) with second ultrasonic transducer (15) correspond and install intake survey buret (14) pipe both ends.
5. An ultrasonic flow meter according to claim 1, wherein the second centralizer (23) comprises:
a weight lever (17);
and the righting plate spring (16) is arranged on the outer side of the weighting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920115070.XU CN210343324U (en) | 2019-01-23 | 2019-01-23 | Ultrasonic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920115070.XU CN210343324U (en) | 2019-01-23 | 2019-01-23 | Ultrasonic flowmeter |
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| Publication Number | Publication Date |
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| CN210343324U true CN210343324U (en) | 2020-04-17 |
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| CN201920115070.XU Active CN210343324U (en) | 2019-01-23 | 2019-01-23 | Ultrasonic flowmeter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585982A (en) * | 2021-08-27 | 2021-11-02 | 重庆力劲机械有限公司 | Oil pipe with pressure flow and temperature detection functions |
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2019
- 2019-01-23 CN CN201920115070.XU patent/CN210343324U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585982A (en) * | 2021-08-27 | 2021-11-02 | 重庆力劲机械有限公司 | Oil pipe with pressure flow and temperature detection functions |
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