CN103776496A - Turbofan flow sensor - Google Patents

Turbofan flow sensor Download PDF

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Publication number
CN103776496A
CN103776496A CN201410050976.XA CN201410050976A CN103776496A CN 103776496 A CN103776496 A CN 103776496A CN 201410050976 A CN201410050976 A CN 201410050976A CN 103776496 A CN103776496 A CN 103776496A
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CN
China
Prior art keywords
turbofan
axostylus axostyle
bearing
flow sensor
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410050976.XA
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Chinese (zh)
Inventor
邓高寿
王宇燕
高振涛
李培京
康忠
王剑
李振平
胡伟
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China North Vehicle Research Institute
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China North Vehicle Research Institute
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Publication date
Application filed by China North Vehicle Research Institute filed Critical China North Vehicle Research Institute
Priority to CN201410050976.XA priority Critical patent/CN103776496A/en
Publication of CN103776496A publication Critical patent/CN103776496A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a turbofan flow sensor and belongs to the technical field of flow measuring devices. The turbofan flow sensor comprises a casing (1), a Hall-effect switch (2), a turbofan rack (3), a steel ball (4), a turbofan (5), a shaft lever (6) and a bearing (7). According to the invention, the flow sensor which is designed by adopting the turbofan is determined to have a relatively stable friction coefficient and abrasive resistance at different angles within a range of 360 degrees due to the design of the structure and the parameters, and the flow measuring repeatability and consistency are ensured.

Description

Turbofan flow sensor
Technical field
The invention belongs to flow measurement device technical field, be specifically related to a kind of turbofan flow sensor.
Background technology
Vane-wheel type flowmeter mainly contains turbo flow meter, shunting rotor flowmeter and water meter etc., it is larger that but instrument is affected by the distortion of incoming flow velocity flow profile and eddy flow etc., the required straight length of sensor upstream and downstream is longer, and limited the precision that limited space condition down-off is measured, such as the application of measuring the occasions such as cooling line flow under vehicle real vehicle state.
Summary of the invention
(1) technical matters that will solve
The present invention is in order to solve in existing flow measurement technology, due to equipment or place pipeline limited space, cannot provide sufficiently long straight length for normal flow quantity sensor, and limited the problem of the accurate measurement of flow, provide a kind of simple in structure, volume is little and two ends do not need the flow sensor of straight length.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of turbofan flow sensor, comprise: housing 1, Hall switch 2, turbofan frame 3, steel ball 4, turbofan 5, axostylus axostyle 6 and bearing 7, the cylinder body shape that described housing 1 is both ends open, one end is as liquid-inlet, the other end is as liquid outlet, and described housing 1 is metal material, described turbofan 5 is carrying magnetic material, on described turbofan frame 3, be distributed with multiple through holes, described Hall switch 2 is arranged on described housing 1, and Hall switch 2 be positioned at described turbofan 5 directly over, described turbofan frame 3, steel ball 4, turbofan 5, axostylus axostyle 6 and bearing 7 are arranged in described housing 1, described turbofan 5 is fixed on axostylus axostyle 6, the quantity of described turbofan frame 3 is two, lay respectively at the both sides of described turbofan 5, the quantity of described steel ball 4 and bearing 7 is also respectively two, the two ends portion of described axostylus axostyle 6 overlaps respectively a described bearing 7, and the plane at described axostylus axostyle 6 two ends contacts with a described steel ball 4 respectively, steel ball 4 described in one of them, one end head of described bearing 7 and described axostylus axostyle 6 is positioned at a turbofan frame 3, steel ball 4 described in another, described in another, the other end head of bearing 7 and described axostylus axostyle 6 is positioned at another turbofan frame 3.
Preferably, between the head at described axostylus axostyle 6 two ends and the axle sleeve of bearing 7, there is the gap of 3~30.
Preferably, described housing 1 is stainless steel or aluminum alloy materials.
Preferably, described multiple through holes are circular port, and are uniformly distributed in by certain rule in the plane of described turbofan frame 3.
(3) beneficial effect
The present invention adopts the flow sensor of turbofan design, because its structure and parameters design has determined that turbofan flow sensor is 360.Different angles in scope all have more stable coefficient of friction and wearing quality, have guaranteed repeatability and the consistance of flow measurement.
Accompanying drawing explanation
Fig. 1 is the front elevation of turbofan flow sensor of the present invention;
Fig. 2 is the side view of turbofan frame in turbofan flow sensor of the present invention.
Embodiment
For making object of the present invention, content and advantage clearer, below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, the invention provides a kind of turbofan flow sensor, comprise: housing 1, Hall switch 2, turbofan frame 3, steel ball 4, turbofan 5, axostylus axostyle 6 and bearing 7, the cylinder body shape that described housing 1 is both ends open, one end is as liquid-inlet, the other end is as liquid outlet, and described housing 1 is metal material, described turbofan 5 is carrying magnetic material, described turbofan frame 3(is as cowling panel) on be distributed with multiple through holes, described Hall switch 2 is arranged on described housing 1, and Hall switch 2 be positioned at described turbofan 5 directly over, described turbofan frame 3, steel ball 4, turbofan 5, axostylus axostyle 6 and bearing 7 are arranged in described housing 1, described turbofan 5 is fixed on axostylus axostyle 6, the quantity of described turbofan frame 3 is two, lay respectively at the both sides of described turbofan 5, the quantity of described steel ball 4 and bearing 7 is also respectively two, the two ends portion of described axostylus axostyle 6 overlaps respectively a described bearing 7, and the plane at described axostylus axostyle 6 two ends contacts with a described steel ball 4 respectively, steel ball 4 described in one of them, one end head of described bearing 7 and described axostylus axostyle 6 is positioned at a turbofan frame 3, steel ball 4 described in another, described in another, the other end head of bearing 7 and described axostylus axostyle 6 is positioned at another turbofan frame 3.
In the present embodiment, described housing 1 is stainless steel or aluminum alloy materials.
As shown in Figure 2, in the present embodiment, described multiple through holes are circular port, and are uniformly distributed in by certain rule in the plane of described turbofan frame 3.
Turbofan flow sensor principle of work of the present invention is: medium is arrived in the chamber of housing 1 by the liquid-inlet of housing 1, through turbofan frame 3, by irregular medium formation rule stream.Promote turbofan 5 by regular flow and rotate, the plane on axostylus axostyle 6 tops contacts with steel ball 4 and forms stable friction factor.The turbofan 5 magnetic edges that rotate see through housing 1 and have an effect with Hall switch 2, produce pulse signal.Signal can be processed by outside secondary instrument.Because the fluoran stream surface of turbofan 5 of the present invention is intensive, therefore sensitivity is higher, the defaecation of low discharge MEDIA FLOW has signal to produce, and MEDIA FLOW flux is larger, rotates sooner, and the signal of generation is more.Linear compensation is completed by secondary instrument.
The front and back ends that conventional flow sensor need to be measured pipeline will have current stabilization straight length, is generally the first five, rear three, and namely needing flow development length is five times and three times of the own length of flow sensor.This require often to have limited on the equipment that there is no redundant space and place in carry out the application of flow measurement.And turbofan flow sensor of the present invention is to utilize the two ends densely covered through hole of turbofan frame 3 planes to carry out rectification, by rectification, irregular medium is rectified into regular MEDIA FLOW.Owing to will considering crushing problem, thus the long-pending diameter with turbofan frame 3 of the fluoran stream surface of flow sensor and hole count number, design according to the difference of concrete purposes and concrete technical indicator.
The advantage of turbofan be it than traditional wing wheel, turbine be subject to stream interface tight and broad, this sensitivity that has determined turbofan flow sensor improves greatly, therefore its range ratio is 3~5 times of conventional flowmeter.The design of turbofan fin inflow angle degree is determined according to medium and flow range.Guarantee the stability of turbofan coefficient of friction by the plane at axostylus axostyle 6 two ends and the design of stainless shot sphere-contact.In addition, have the gap (different and different with viscosity according to the density of medium) of 3~30 between axostylus axostyle two ends head and the axle sleeve of bearing 7, simultaneously because liquid type medium can produce liquid film, thereby Minus has lacked the wearing and tearing between axle sleeve and axostylus axostyle head extremely largely.The present invention adopts the flow sensor of turbofan design, because its structure and parameters design has determined that turbofan flow sensor is 360.Different angles in scope all have more stable coefficient of friction and wearing quality, have guaranteed repeatability and the consistance of flow measurement.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.

Claims (4)

1. a turbofan flow sensor, it is characterized in that, comprise: housing (1), Hall switch (2), turbofan frame (3), steel ball (4), turbofan (5), axostylus axostyle (6) and bearing (7), the cylinder body shape that described housing (1) is both ends open, one end is as liquid-inlet, the other end is as liquid outlet, and described housing (1) is metal material, described turbofan (5) is carrying magnetic material, on described turbofan frame (3), be distributed with multiple through holes, described Hall switch (2) is arranged on described housing (1), and Hall switch (2) be positioned at described turbofan (5) directly over, described turbofan frame (3), steel ball (4), turbofan (5), axostylus axostyle (6) and bearing (7) are arranged in described housing (1), described turbofan (5) is fixed on axostylus axostyle (6), the quantity of described turbofan frame (3) is two, lay respectively at the both sides of described turbofan (5), the quantity of described steel ball (4) and bearing (7) is also respectively two, the two ends portion of described axostylus axostyle (6) overlaps respectively a described bearing (7), and the plane at described axostylus axostyle (6) two ends contacts with a described steel ball (4) respectively, steel ball described in one of them (4), one end head of a described bearing (7) and described axostylus axostyle (6) is positioned at a turbofan frame (3), steel ball described in another (4), the other end head of bearing described in another (7) and described axostylus axostyle (6) is positioned at another turbofan frame (3).
2. turbofan flow sensor as claimed in claim 1, is characterized in that, between the head at described axostylus axostyle (6) two ends and the axle sleeve of bearing (7), has the gap of 3~30.
3. turbofan flow sensor as claimed in claim 1, is characterized in that, described housing (1) is stainless steel or aluminum alloy materials.
4. the turbofan flow sensor as described in claim 1 or 2 or 3, is characterized in that, described multiple through holes are circular port, and is uniformly distributed in by certain rule in the plane of described turbofan frame (3).
CN201410050976.XA 2014-02-14 2014-02-14 Turbofan flow sensor Pending CN103776496A (en)

Priority Applications (1)

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CN201410050976.XA CN103776496A (en) 2014-02-14 2014-02-14 Turbofan flow sensor

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104614025A (en) * 2015-02-15 2015-05-13 广州市中南机电工程有限公司 Large-diameter pipe flow monitoring device
CN108225460A (en) * 2017-12-29 2018-06-29 嘉兴乾昆工业设计有限公司 A kind of intellectual water meter that can check the number of degrees immediately

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Publication number Priority date Publication date Assignee Title
CN2241384Y (en) * 1995-02-23 1996-11-27 王若柏 Static finger contact seat of high voltage isolation switchgear
EP1450139A2 (en) * 2003-02-18 2004-08-25 ROLLS-ROYCE plc A method and apparatus for determining the mass flow through an engine
CN2694237Y (en) * 2004-04-13 2005-04-20 颜永戈 Flow sensor
CN2757099Y (en) * 2005-01-20 2006-02-08 杨西忠 Turbine flowmeter device
US20080302081A1 (en) * 2007-03-07 2008-12-11 Rolls-Royce Plc Method for detecting ice ingestion in a gas turbine engine
CN101629837A (en) * 2009-02-10 2010-01-20 中国人民解放军总后勤部油料研究所 Liquid turbine flow meter and flow measuring method thereof
CN201699507U (en) * 2010-01-26 2011-01-05 王伟青 Elastic buffering thrust end socket at top end of worm shaft of micromotor rotor
CN103470624A (en) * 2013-08-23 2013-12-25 桐乡辰宇机械有限公司 Anti-vibration bearing pedestal for transmission shaft

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2241384Y (en) * 1995-02-23 1996-11-27 王若柏 Static finger contact seat of high voltage isolation switchgear
EP1450139A2 (en) * 2003-02-18 2004-08-25 ROLLS-ROYCE plc A method and apparatus for determining the mass flow through an engine
CN2694237Y (en) * 2004-04-13 2005-04-20 颜永戈 Flow sensor
CN2757099Y (en) * 2005-01-20 2006-02-08 杨西忠 Turbine flowmeter device
US20080302081A1 (en) * 2007-03-07 2008-12-11 Rolls-Royce Plc Method for detecting ice ingestion in a gas turbine engine
CN101629837A (en) * 2009-02-10 2010-01-20 中国人民解放军总后勤部油料研究所 Liquid turbine flow meter and flow measuring method thereof
CN201699507U (en) * 2010-01-26 2011-01-05 王伟青 Elastic buffering thrust end socket at top end of worm shaft of micromotor rotor
CN103470624A (en) * 2013-08-23 2013-12-25 桐乡辰宇机械有限公司 Anti-vibration bearing pedestal for transmission shaft

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
范志华,刘枫: "涡轮流量计在流量测量中的应用", 《气象水文海洋仪器》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104614025A (en) * 2015-02-15 2015-05-13 广州市中南机电工程有限公司 Large-diameter pipe flow monitoring device
CN108225460A (en) * 2017-12-29 2018-06-29 嘉兴乾昆工业设计有限公司 A kind of intellectual water meter that can check the number of degrees immediately

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Application publication date: 20140507