CN205374505U - Can tear pitot tube device that trades fast open - Google Patents

Can tear pitot tube device that trades fast open Download PDF

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Publication number
CN205374505U
CN205374505U CN201521111930.0U CN201521111930U CN205374505U CN 205374505 U CN205374505 U CN 205374505U CN 201521111930 U CN201521111930 U CN 201521111930U CN 205374505 U CN205374505 U CN 205374505U
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China
Prior art keywords
sampling probe
pitot tube
sampling
hole
alignment pin
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Application number
CN201521111930.0U
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Chinese (zh)
Inventor
刘世胜
尹宏清
尹宏彦
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JIANGYIN GRASUN OPTOELECTRONICS TECHNOLOGY Co Ltd
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JIANGYIN GRASUN OPTOELECTRONICS TECHNOLOGY Co Ltd
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Priority to CN201521111930.0U priority Critical patent/CN205374505U/en
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Abstract

The utility model discloses a can tear pitot tube device that trades fast open, including sampling probe, seal ring, sampling probe rod with to the dress flange, sampling probe detachable connects in sampling probe rod one end, seal through seal ring between this sampling probe and the sampling probe rod, the sampling probe rod other end with to dress flange fixed connection. The utility model discloses the difficult jam, overall structure is single, and the clearance maintenance after in the future using is more convenient, convenient, through the locating pin location, guarantee graphite seal ring, the pitot tube sampling probe uniformity of dismouting at every turn, pitot tube sampling probe passes through seal ring flexible sealing with the sampling probe rod, has both guaranteed the leakproofness of pitot tube pipeline, does not also receive the corruption to locating pin and external isolation, guarantees the positioning accuracy of locating pin.

Description

A kind of Pitot tube arrangement of fast changable
Technical field
This utility model belongs to the pitot tube sampling probe of the pitot tube, particularly a kind of fast changable that measure flow velocity.
Background technology
In China's scientific research, production, teaching, environmental conservation and clean room, tunnel, mine ventilation, energy conservation department; the air velocity in ventilation shaft, industrial pipeline, stove flue measured by conventional pitot tube; flow is determined, it is also possible to measure the pressure of the water velocity in pipeline and fluid through conversion.Test the speed with pitot tube and determine flow, easy to use, accurate, it is the measurement technology widely of a kind of classics.
In at present fume emission being monitored pitot tube mainly have the Pitot tube arrangement (200920041990.8) suitable in short flue gas flow-speed measurement, for the pitot tube (200920041991.2) of fixing continuous and automatic monitoring system of pollution source fume with detect the technology such as Pitot tube arrangement (201310303385.4) that a flue gas flow rate measures more, solve the technical problem that and mainly prevent in flue gas corrosive gas and particulate matter to pitot tube generation corrosion, wear and blocking.But have the disadvantage that one is measure in environment for high temperature, high dust, high humidity, the severe of high corrosion in flue, pitot tube sampling probe part or easily blocking, and perishable, must integral replacing after sampling probe deformation.Two is that the environment of some test site is relatively severe, and in order to ensure the accuracy to its parameter detecting, pitot tube is accomplished by cleaning after a period of time after using, when cleaning, and complex operation;Must integral replacing when cannot clear up.
Therefore, no matter the continuous on-line monitoring pitot tube of existing fume emission is S type, L-type or back type, if corroded at pitot tube sampling probe, or in the non-serviceable situation of blocking, together with the sampling probe of pitot tube is stationarily connected to sampling feeler lever structure, it is difficult to change sampling probe, so necessary integral replacing, causes cost to improve the waste very big with resource significantly.
Utility model content
The purpose of this utility model is in that to provide the Pitot tube arrangement of a kind of fast changable, and not only the sampling probe of pitot tube is not easily blocked, corrodes, it is easier to cleaning, and it is convenient to change.
The technical solution realizing this utility model purpose is: the Pitot tube arrangement of a kind of fast changable, including sampling probe, seal washer, sampling feeler lever and to dress flange, sampling probe is removably attachable to sampling feeler lever one end, being sealed by seal washer between this sampling probe and sampling feeler lever, the described sampling feeler lever other end is connected with to dress flange is fixing.
This utility model is compared with prior art, its remarkable advantage: (1) selects 316L rustless steel to make sampling probe and sampling feeler lever, sampling probe inner-wall spraying anti-corrosion material, there is the feature of anticorrosion heatproof, because of inner-wall spraying anti-corrosion material, surface can be very smooth, has the advantages that to be not easily blocked.(2) overall structure is single, and the sampling probe of pitot tube is detachable, different according to the degree damaged, and flimsy sampling probe is replaced, and therefore the cleaning after in the future using is safeguarded more convenient, convenient, and reduces maintenance cost.(3) sampling probe of pitot tube can be changeable, it is possible to uses environment according to different and require to change different sampling probes, it is achieved the advantage of many sampling probes joined by a feeler lever, and reduces use cost.(4) positioned by alignment pin, it is ensured that the concordance that seal washer, pitot tube sampling probe dismount every time.(5) sampling probe and sampling feeler lever are by seal washer flexible sealing, both ensure that the sealing of pitot tube pipeline, and also alignment pin have been isolated from the outside and are not corroded, it is ensured that the positioning precision of alignment pin.
Below in conjunction with accompanying drawing, this utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Pitot tube arrangement of this utility model fast changable.
Fig. 2 is sampling feeler lever front-end architecture schematic diagram of the present utility model: (a) front view;(b) A-A sectional view.
Fig. 3 is graphite grazing gasket construction schematic diagram of the present utility model: (a) front view;(b) B-B sectional view.
Fig. 4 is sampling probe structural representation of the present utility model: the front view of (a) L-type sampling probe structure;The C1-C1 sectional view of (b) L-type sampling probe structure;The front view of (c) backrest type sampling probe structure;The C2-C2 sectional view of (d) backrest type sampling probe structure;The front view of (e) S type sampling probe structure;The C3-C3 sectional view of (f) S type sampling probe structure.
Detailed description of the invention
In conjunction with Fig. 1, the Pitot tube arrangement of this utility model fast changable, including sampling probe, seal washer 4, sampling feeler lever 5 and to dress flange 12, sampling probe is removably attachable to sampling feeler lever 5 one end, sealed by seal washer 4 between this sampling probe and sampling feeler lever 5, good seal performance, certainty of measurement is high.Described sampling feeler lever 5 other end is connected with to dress flange 12 is fixing, and dress flange 12 is fixed on flue outer wall on dress flange by plain bolt 11 by this.
In conjunction with Fig. 2, sampling feeler lever 5 front end of the present utility model be respectively provided with install alignment pin 68, two pitot tube holes 1 of dowel hole, to dress screw 10.Of the present utility model to dress screw 10, alignment pin 6 and dowel hole 8 respectively two or more, each arrange along the centrosymmetry of sampling feeler lever 5 front end.
In conjunction with Fig. 3, seal washer 4 is respectively provided with alignment pin through hole 811, packing ring pitot tube through hole 111, packing ring to dress bolt hole 1011, wherein the position of alignment pin through hole 811 is corresponding with alignment pin 6 and dowel hole 8, the position of packing ring pitot tube through hole 111 is corresponding with two pitot tube holes 1, and packing ring is corresponding with to dress screw 10 to the position of dress bolt hole 1011.The material of seal washer 4 can be graphite or rubber.
In conjunction with Fig. 4, sampling probe is respectively provided with alignment pin blind hole 7, sampling probe pitot tube through hole 112, sampling probe to dress bolt hole 1012, the position of alignment pin blind hole 7 is corresponding with alignment pin 6 and dowel hole 8, the position of sampling probe pitot tube through hole 112 is corresponding with two pitot tube holes 1, sampling probe to dress bolt hole 1012 with position with to fill screw 10 corresponding.Sampling probe is the S type of routine, L-type or backrest type sampling probe, as need to be cleared up or change, directly can be taken off by sampling probe, carry out clearing up or changing, and solves an intrinsic sampling feeler lever of existing pitot tube and joins a kind of sampling probe structure.In addition can also according to sampling location and the purpose difference installing the difference of equipment, sampling, different sampling probes can be changed according to special circumstances, simultaneously work as that feeler lever is multiplex and the effect of several the feeler levers in a feeler lever top, achieve a sampling feeler lever and join the structure of many sampling probes, maintain cost and saved resource.
Described alignment pin 6 coordinates through dowel hole 8, alignment pin through hole 811 with alignment pin blind hole 7, by seal washer 4, sampling probe location and installation to sampling feeler lever 5 front end, bolt 2 sequentially passes through sampling probe and dress bolt hole 1011 is screwed in dress screw 10 by dress bolt hole 1012, packing ring, and sampling probe, seal washer 4 and sampling feeler lever 5 are connected into entirety.Positioned by alignment pin 6, it is ensured that the concordance of dismounting every time;Sampling probe and sampling feeler lever 5 are by seal washer 4 flexible sealing, it is ensured that the sealing of pitot tube pipeline, alignment pin 6 are isolated from the outside simultaneously and are not corroded, it is ensured that the accuracy of location.Sampling probe and sampling feeler lever 5 are used that 316L rustless steel is made, sampling probe inner-wall spraying anti-corrosion material.

Claims (6)

1. the Pitot tube arrangement of a fast changable, it is characterized in that including sampling probe, seal washer (4), sampling feeler lever (5) and to dress flange (12), sampling probe is removably attachable to sampling feeler lever (5) one end, being sealed by seal washer (4) between this sampling probe and sampling feeler lever (5), described sampling feeler lever (5) other end is connected with to dress flange (12) is fixing.
2. the Pitot tube arrangement of fast changable according to claim 1, it is characterised in that sampling feeler lever (5) front end be respectively provided with install the dowel hole (8) of alignment pin (6), two pitot tube holes (1), to dress screw (10);
Seal washer (4) is respectively provided with alignment pin through hole (811), packing ring pitot tube through hole (111), packing ring to dress bolt hole (1011), wherein the position of alignment pin through hole (811) is corresponding with alignment pin (6) and dowel hole (8), the position of packing ring pitot tube through hole (111) is corresponding with two pitot tube holes (1), and packing ring is corresponding with to dress screw (10) to the position of dress bolt hole (1011);
Sampling probe is respectively provided with alignment pin blind hole (7), sampling probe pitot tube through hole (112), sampling probe to dress bolt hole (1012), the position of alignment pin blind hole (7) is corresponding with alignment pin (6) and dowel hole (8), the position of sampling probe pitot tube through hole (112) is corresponding with two pitot tube holes (1), sampling probe to dress bolt hole (1012) with position with to fill screw (10) corresponding;
Described alignment pin (6) coordinates through dowel hole (8), alignment pin through hole (811) with alignment pin blind hole (7), by seal washer (4), sampling probe location and installation to sampling feeler lever (5) front end, bolt (2) sequentially passes through sampling probe and dress bolt hole (1011) is screwed in dress screw (10) by dress bolt hole (1012), packing ring, and sampling probe, seal washer (4) and sampling feeler lever (5) are connected into entirety.
3. the Pitot tube arrangement of fast changable according to claim 2, it is characterized in that, to dress screw (10), alignment pin (6) and dowel hole (8) respectively two or more, each arranging along the centrosymmetry of sampling feeler lever (5) front end.
4. the Pitot tube arrangement of the fast changable according to claim 1,2 or 3, it is characterised in that sampling probe and sampling feeler lever (5) are used that 316L rustless steel is made, sampling probe inner-wall spraying anti-corrosion material.
5. the Pitot tube arrangement of fast changable according to claim 1 and 2, it is characterised in that the material of seal washer (4) is graphite or rubber.
6. the Pitot tube arrangement of the fast changable according to claim 1,2 or 3, it is characterised in that sampling probe is S type, L-type or backrest type sampling probe.
CN201521111930.0U 2015-12-28 2015-12-28 Can tear pitot tube device that trades fast open Active CN205374505U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521111930.0U CN205374505U (en) 2015-12-28 2015-12-28 Can tear pitot tube device that trades fast open

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
CN205374505U true CN205374505U (en) 2016-07-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106018866A (en) * 2016-08-05 2016-10-12 北京奇正数元科技股份有限公司 Integrated quick-disassembling airspeed meter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106018866A (en) * 2016-08-05 2016-10-12 北京奇正数元科技股份有限公司 Integrated quick-disassembling airspeed meter

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