CN203148481U - Omega-shaped ultrasonic flowmeter for measuring small flow and micro flow - Google Patents
Omega-shaped ultrasonic flowmeter for measuring small flow and micro flow Download PDFInfo
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- CN203148481U CN203148481U CN 201320129773 CN201320129773U CN203148481U CN 203148481 U CN203148481 U CN 203148481U CN 201320129773 CN201320129773 CN 201320129773 CN 201320129773 U CN201320129773 U CN 201320129773U CN 203148481 U CN203148481 U CN 203148481U
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Abstract
The utility model discloses an omega-shaped ultrasonic flowmeter for measuring small flow and micro flow. The omega-shaped ultrasonic flowmeter for measuring the small flow and the micro flow comprises an entry end and an exit end, and further comprises a first inclined straight pipe section, a second inclined straight pipe section and a measuring straight pipe section, the entry end and the exit end both extend inwards in an opposite direction, the entry end is connected with the first inclined straight pipe section through a first elbow section, the exit end is connected with the second inclined straight pipe section through a second elbow section, the first inclined straight pipe section is connected with the second inclined straight pipe section through the measuring straight pipe section, a first ultrasonic transducer is arranged on the end portion, connected with the first inclined straight pipe section, of the measuring straight pipe section, and a second ultrasonic transducer is arranged on the end portion, connected with the second inclined straight pipe section, of the measuring straight pipe section. The omega-shaped ultrasonic flowmeter for measuring the small flow and the micro flow has the advantages that ultrasonic waves are directly emitted oppositely, no built-in measuring component is arranged in the measuring pipe section, the flowing clearance of fluid is large, the length of a sonic path distance is not limited by a mounting dimension, and the transducer can be dismounted and cleaned.
Description
Technical field
The utility model relates to a kind of for the Ω type ultrasonic flowmeter of measuring low discharge and tiny flow quantity.
Background technology
In existing pipeline liquid and gas flow measurement, the low discharge and the small amount of flow measuring that are used for little caliber, because rate of flow of fluid is low, thereby it is less to exist available instrument kind, and measure sensing element and mostly be movable structure, these measurement instruments also exist the sensor crushing big and problems such as lack serviceable life.Ultrasonic measurement pipeline section in the existing flowmeter is generally taked forms such as bronze mirror reflection, U-shaped structure, built-in sensors in the market, all exists to varying degree following shortcoming: measuring tube is built-in with measuring element and causes fluid to flow to be subjected to more obstruction; The little fluid in measurement pipeline section circulation gap easily stops up when dirtier; Thereby cause the too short measuring accuracy etc. that influences of sound path because sensor length is size-constrained.
The utility model content
For this reason, technical problem to be solved in the utility model provides the direct correlation of a kind of ultrasound wave, the interior no built-in measuring element of measurement pipeline section, fluid circulates, and the gap is big, sound path length is not subjected to installation dimension restriction, transducer can dismantle the Ω type ultrasonic flowmeter for measurement low discharge and tiny flow quantity of cleaning, to overcome the deficiency that prior art exists.
Solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of for the Ω type ultrasonic flowmeter of measuring low discharge and tiny flow quantity, comprise inlet end and endpiece, it is characterized in that: also comprise the first oblique straight length, the second oblique straight length and measurement straight length, described inlet end and described endpiece all extend inwardly in opposite directions, described inlet end is connected with the described first oblique straight length by the first elbow section, described endpiece is connected with the described second oblique straight length by the second elbow section, the described first oblique straight length and described second all oblique extensions outwardly of oblique straight length, the described first oblique straight length is connected by described measurement straight length with the described second oblique straight length, described measurement straight length is equipped with first ultrasonic transducer with the end that the described first oblique straight length is connected, and described measurement straight length is equipped with second ultrasonic transducer with the end that the described second oblique straight length is connected.
Further, the two ends of described measurement straight length are equipped with threaded opening, and described first ultrasonic transducer is with described second ultrasonic transducer is installed in described measurement straight length openings at two ends respectively by being threaded in.
Further, described first ultrasonic transducer and described second ultrasonic transducer are the contact structure.
Further, described first ultrasonic transducer and described second ultrasonic transducer are contactless structure.
Further, described inlet end and described endpiece, the described first elbow section and the described second elbow section, the described first oblique straight length and the described second oblique straight length are symmetrical structure respectively.
Adopt technique scheme, when fluid passes through, no any blocking device in the whole path, so the fluid crushing is minimum, the negotiability of flowmeter is big.
Described first ultrasonic transducer adopts detachable the connection with described second ultrasonic transducer with described measurement straight length, therefore, during the surface attachment foul, can pull down transducer from described measurement straight length easily and clear up outside.In addition, can also clear up mediation to described measurement straight length inwall after pulling down transducer, thereby make prolong greatly the serviceable life of flowmeter.
Described first ultrasonic transducer and described second ultrasonic transducer can adopt contact structure or contactless structure, can realize the flow measurement to gas and liquid, make purposes of the present utility model very wide.
The installation dimension of flowmeter of the present utility model, namely the distance of described inlet end and described endpiece is irrelevant with the ultrasound wave sound path.Because, as long as pass through to change the length of the described first oblique straight length and the described second oblique straight length, thereby change the length of described measurement straight length, just can reach the adjustment to ultrasound wave sound path length, irrelevant with the installation dimension of flowmeter.Therefore, the utility model both can satisfy in the correlative flow instrument standard requirement about installation dimension, again can be at the sound path that does not change installation dimension prerequisite downward modulation rectification flow meter, sound path can only changeless shortcoming fixedly the time in the flowmeter installation dimension to have overcome other like product.The utility model can prolong the measurement sound path effectively, thereby has improved the measuring accuracy to low discharge and tiny flow quantity.
Flowmeter of the present utility model can be taked different mounting meanss according to the difference of detected fluid.When gas flow is measured, can adopt positive Ω type to install, when fluid flow is measured, can adopt the type of falling Ω to install, therefore, on-the-spot installing and using is all very convenient.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is elaborated:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is direction of flow path synoptic diagram when using the utility model.
Among the figure:
The 1-inlet end, the 2-endpiece, the 3-first elbow section, the 4-second elbow section, the 5-first oblique straight length, the 6-second oblique straight length, 7-measures straight length, 8-first ultrasonic transducer, 9-second ultrasonic transducer.
Embodiment
As shown in Figure 1, the Ω type ultrasonic flowmeter for measurement low discharge and tiny flow quantity of the present utility model comprises inlet end 1 and endpiece 2, also comprises the first oblique straight length 5, the second oblique straight length 6 and measures straight length 7.Inlet end 1 all extends inwardly in opposite directions with endpiece 2, inlet end 1 is connected with the first oblique straight length 5 by the first elbow section 3, endpiece 2 is connected with the second oblique straight length 6 by the second elbow section 4, the first oblique straight length 5 and described second all oblique extensions outwardly of oblique straight length 6, the first oblique straight length 5 is connected by measuring straight length 7 with the second oblique straight length 6.Measure straight length 7 and with the end that the first oblique straight length 5 is connected first ultrasonic transducer 8 is housed, measure straight length 7 and with the end that the second oblique straight length 6 is connected second ultrasonic transducer 9 is housed.
The two ends of measuring straight length 7 are equipped with threaded opening, and first ultrasonic transducer 8 is installed in respectively by being threaded with second ultrasonic transducer 9 and measures in straight length 7 openings at two ends.First ultrasonic transducer 8 and second ultrasonic transducer 9 can adopt contact structure or contactless structure.
Inlet end 1 and endpiece 2, the first elbow section 3 and the second elbow section 4, the first oblique straight length 5 and the second oblique straight length 6 are symmetrical structure respectively, and therefore, flowmeter integral body is positive Ω type or the type of falling Ω, are line of symmetry with the median vertical line of measuring straight length 7.
As shown in Figure 2, fluid enters the inlet end 1 of flowmeter, successively through behind the first elbow section 3 and the first oblique straight length 5, enter and measure straight length 7, after successively through the second oblique straight length 6, the second elbow section 4, from endpiece 2 outflows.Fluid is in measuring straight length 7 processes, be installed in first ultrasonic transducer, 8 following currents of measuring straight length 7 ends and send ultrasonic signal, be installed in second ultrasonic transducer 9 of measuring straight length 7 the other end and receive this following current ultrasonic signal, then, second ultrasonic transducer, 9 adverse currents are sent ultrasonic signal, and first ultrasonic transducer 8 receives this adverse current ultrasonic signal.The ultrasonic signal of following current and adverse current obtains the measurement numerical value of fluid flow after the main frame computing.
When fluid is flowed through the utility model flowmeter, no any blocking device in the whole path, so the fluid crushing is minimum, the negotiability of flowmeter is big.
Therefore first ultrasonic transducer 8 and second ultrasonic transducer 9 and measure straight length 7 and adopt detachable connections, outside during the surface attachment foul, can be easily be pulled down transducer and clear up from measuring straight length 7.In addition, pull down behind the transducer and can also clear up mediation to measuring straight length 7 inwalls, thereby make prolong greatly the serviceable life of flowmeter.
First ultrasonic transducer 8 and second ultrasonic transducer 9 can adopt contact structure or contactless structure, can realize the flow measurement to gas and liquid, make purposes of the present utility model very wide.
The installation dimension of flowmeter of the present utility model, namely the distance of inlet end 1 and endpiece 2 is irrelevant with the ultrasound wave sound path.Because, as long as pass through to change the length of the first oblique straight length 5 and the second oblique straight length 6, thereby change the length of measuring straight length 7, just can reach the adjustment to ultrasound wave sound path length, irrelevant with the installation dimension of flowmeter.Therefore, the utility model both can satisfy in the correlative flow instrument standard requirement about installation dimension, again can be at the sound path that does not change installation dimension prerequisite downward modulation rectification flow meter, sound path can only changeless shortcoming fixedly the time in the flowmeter installation dimension to have overcome other like product.The utility model can prolong the measurement sound path effectively, thereby has improved the measuring accuracy to low discharge and tiny flow quantity.
Flowmeter of the present utility model when gas flow is measured, can adopt positive Ω type to install, and when fluid flow is measured, can adopt the type of falling Ω to install, and therefore, on-the-spot installing and using is all very convenient.
Claims (5)
1. Ω type ultrasonic flowmeter of be used for measuring low discharge and tiny flow quantity, comprise inlet end and endpiece, it is characterized in that: also comprise the first oblique straight length, the second oblique straight length and measurement straight length, described inlet end and described endpiece all extend inwardly in opposite directions, described inlet end is connected with the described first oblique straight length by the first elbow section, described endpiece is connected with the described second oblique straight length by the second elbow section, the described first oblique straight length and described second all oblique extensions outwardly of oblique straight length, the described first oblique straight length is connected by described measurement straight length with the described second oblique straight length, described measurement straight length is equipped with first ultrasonic transducer with the end that the described first oblique straight length is connected, and described measurement straight length is equipped with second ultrasonic transducer with the end that the described second oblique straight length is connected.
2. according to claim 1 for the Ω type ultrasonic flowmeter of measuring low discharge and tiny flow quantity, it is characterized in that: the two ends of described measurement straight length are equipped with threaded opening, and described first ultrasonic transducer is with described second ultrasonic transducer is installed in described measurement straight length openings at two ends respectively by being threaded in.
3. according to claim 1 for the Ω type ultrasonic flowmeter of measuring low discharge and tiny flow quantity, it is characterized in that: described first ultrasonic transducer and described second ultrasonic transducer are the contact structure.
4. according to claim 1 for the Ω type ultrasonic flowmeter of measuring low discharge and tiny flow quantity, it is characterized in that: described first ultrasonic transducer and described second ultrasonic transducer are contactless structure.
5. according to claim 1 for the Ω type ultrasonic flowmeter of measuring low discharge and tiny flow quantity, it is characterized in that: described inlet end and described endpiece, the described first elbow section and the described second elbow section, the described first oblique straight length and the described second oblique straight length are symmetrical structure respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320129773 CN203148481U (en) | 2013-03-20 | 2013-03-20 | Omega-shaped ultrasonic flowmeter for measuring small flow and micro flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320129773 CN203148481U (en) | 2013-03-20 | 2013-03-20 | Omega-shaped ultrasonic flowmeter for measuring small flow and micro flow |
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| Publication Number | Publication Date |
|---|---|
| CN203148481U true CN203148481U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320129773 Expired - Lifetime CN203148481U (en) | 2013-03-20 | 2013-03-20 | Omega-shaped ultrasonic flowmeter for measuring small flow and micro flow |
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| CN (1) | CN203148481U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300462A (en) * | 2015-10-30 | 2016-02-03 | 北京控制工程研究所 | Ultrasonic transducer mounting structure and ultrasonic flowmeter |
| CN106092232A (en) * | 2016-06-20 | 2016-11-09 | 浙江圣地物联科技有限公司 | A kind of bypass correlation acoustic wave flow meter |
| CN106092230A (en) * | 2016-06-17 | 2016-11-09 | 济南新盛电子科技有限公司 | A kind of alliteration journey transducer ultrasonic ripple gas meter, flow meter |
| WO2019024510A1 (en) * | 2017-08-01 | 2019-02-07 | 青岛积成电子股份有限公司 | Axial bi-injection ultrasonic gas flow measuring gas line |
| CN110487342A (en) * | 2019-07-23 | 2019-11-22 | 广东美的白色家电技术创新中心有限公司 | Flowmeter pipeline and flowermeter with it |
| CN113280873A (en) * | 2021-06-17 | 2021-08-20 | 北京北方华创微电子装备有限公司 | Semiconductor cleaning equipment and solution flow monitoring device thereof |
| CN113701834A (en) * | 2021-07-29 | 2021-11-26 | 上海中核维思仪器仪表有限公司 | Gas ultrasonic flowmeter |
-
2013
- 2013-03-20 CN CN 201320129773 patent/CN203148481U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300462A (en) * | 2015-10-30 | 2016-02-03 | 北京控制工程研究所 | Ultrasonic transducer mounting structure and ultrasonic flowmeter |
| CN105300462B (en) * | 2015-10-30 | 2018-12-21 | 北京控制工程研究所 | Ultrasonic transducer mounting structure and ultrasonic flowmeter |
| CN106092230A (en) * | 2016-06-17 | 2016-11-09 | 济南新盛电子科技有限公司 | A kind of alliteration journey transducer ultrasonic ripple gas meter, flow meter |
| CN106092230B (en) * | 2016-06-17 | 2022-04-08 | 济南新盛电子科技有限公司 | Ultrasonic gas meter with double acoustic path transducers |
| CN106092232A (en) * | 2016-06-20 | 2016-11-09 | 浙江圣地物联科技有限公司 | A kind of bypass correlation acoustic wave flow meter |
| WO2019024510A1 (en) * | 2017-08-01 | 2019-02-07 | 青岛积成电子股份有限公司 | Axial bi-injection ultrasonic gas flow measuring gas line |
| CN110487342A (en) * | 2019-07-23 | 2019-11-22 | 广东美的白色家电技术创新中心有限公司 | Flowmeter pipeline and flowermeter with it |
| CN113280873A (en) * | 2021-06-17 | 2021-08-20 | 北京北方华创微电子装备有限公司 | Semiconductor cleaning equipment and solution flow monitoring device thereof |
| CN113701834A (en) * | 2021-07-29 | 2021-11-26 | 上海中核维思仪器仪表有限公司 | Gas ultrasonic flowmeter |
| CN113701834B (en) * | 2021-07-29 | 2023-04-07 | 上海中核维思仪器仪表股份有限公司 | Gas ultrasonic flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |