CN103675331B - Combined type S type Pitot tube - Google Patents
Combined type S type Pitot tube Download PDFInfo
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- CN103675331B CN103675331B CN201310714268.7A CN201310714268A CN103675331B CN 103675331 B CN103675331 B CN 103675331B CN 201310714268 A CN201310714268 A CN 201310714268A CN 103675331 B CN103675331 B CN 103675331B
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- pitot tube
- tube body
- pipeline section
- steady pin
- head end
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Abstract
The invention discloses combined type S type Pitot tube, it comprises Pitot tube body head end pipeline section and Pitot tube body tail end pipeline section, between Pitot tube body head end pipeline section and Pitot tube body tail end pipeline section, peg graft and be connected to form Pitot tube body by primary and secondary joint, there is high-temperature resistant rubber pipe at the primary and secondary joint cover of pegging graft connected, on Pitot tube body head end pipeline section, be fixed with head end outer sleeve, on Pitot tube body tail end pipeline section, be fixed with tail end outer sleeve, head end, between tail end outer sleeve, interconnect complete cylinder of rear formation and be mutually interlocked by steady pin and steady pin inserting slot construction, Pitot tube body interior tube core diameter is identical, there are nut and the screw-rod structure that can be threaded each other at steady pin and steady pin inserting slot construction overcoat. this structure can be combined length, is easy to carry and joint connection in site/disassembling section, can increase substantially operating efficiency and accuracy of measurement.
Description
Technical field
The present invention relates to a kind of for measuring the S type Pitot tube of gas flow rate in flue or other discharge ducts, spyBe not applicable to the survey that interior diameter or the length of side are greater than ultra-large type flue or the interior gas flow rate of other discharge ducts of 3 metersAmount.
Background technology
Environmental monitoring field is often used S type Pitot tube (length is generally 0.5～2.5 meter of left and right) to carry out flueOr the measurement of the interior gas flow rate of other discharge ducts, and according to " waste gas in fixed source Specifications of Monitoring Technology HJ/T397-2007 " etc. the requirement of relevant criterion, in gas flow rate measuring process, need according to sample point flue or itsThe difference of his discharge duct cross sectional shape (circular, rectangle or square) and diameter or size dimension, arranges1～20 monitoring site, by getting its arithmetic mean to the measured gas flow rate in difference position on same cross sectionBe worth, calculate the mean flow rate of this section gas.
At the scene in actual monitoring process, can often run into interior diameter or the length of side and be greater than 3 meters and (even reach 6～7About rice) ultra-large type flue or other discharge ducts. Now the monitoring site of farthest is at a distance of the distance of thief hatchFrom will much larger than 3 meters (flue wall thickness and sampling flange length sum generally 0.5～0.9 meter of left and right),The length of common S type Pitot tube is difficult to meet instructions for use, if S type Pitot tube is made into 3 meters evenThe length of 6～7 meters, can bring very large difficulty depositing at ordinary times, in transport and use procedure.
Denomination of invention is " combined type Pitot tube ", the Chinese patent that the patent No. is CN201310246360.5Disclosed combined type Pitot tube, it comprises backrest type pitot tube and the fairlead being attached thereto, backrest type tests the speedPipe clamp is in head connector, and stretch out at two ends, and head connector two-port is offered external screw thread, and one end is connected with guarantorGuard shield, by backrest type pitot tube head cover in the inner, the other end is connected with extension tube, by backrest type pitot tube tailPortion covers in the inner, is connected with end cap in extension tube another end, and in end cap, card has fairlead, and fairlead and backrest type are surveyedSpeed pipe is connected by silicone tube. But this pipe connected mode and method of operating are unreasonable, adopt in hollow pipe and connectThe way of rubber hose, need to prepare many groups rubber hose different in size, to meet the need of various combination lengthWant; And very inconvenience of operation in the time that pattern length is longer, to the actual use in the monitoring field confined spaceCause adverse effect.
Summary of the invention
The object of the invention is to solve existing S type Pitot tube and be difficult to measure ultra-large type flue or its accurately, comprehensivelyThe problem of different monitoring points position gas flow rate in his discharge duct, provides the one both can be so that deposited, transported,Also can be applicable to measure easily and efficiently all monitoring sites place gas flow rate in limited monitoring spaceCombined type S type Pitot tube.
For achieving the above object, the technical solution adopted in the present invention is:
Combined type S type Pitot tube of the present invention, it comprises Pitot tube body head end pipeline section and Pitot tube body tailEnd tube section, inserts by primary and secondary joint between described Pitot tube body head end pipeline section and Pitot tube body tail end pipeline sectionConnect and be connected to form Pitot tube body, have high-temperature resistant rubber pipe at the described primary and secondary joint cover being connected of pegging graft,On described Pitot tube body head end pipeline section, be fixed with head end outer sleeve, at described Pitot tube body tail endOn pipeline section, be fixed with tail end outer sleeve, between described head end, tail end outer sleeve by steady pin and solidRationed marketing inserting slot construction interconnects complete cylinder of rear formation and is mutually interlocked, described skin holderTube body internal die diameter is identical, has and each other can at described steady pin and steady pin inserting slot construction overcoatThe nut being enough threaded and screw-rod structure.
Beneficial effect of the present invention: the combined type S type Pitot tube that (1) is made by employing special material,Ensureing beyond due rigidity and the performance such as high temperature resistant, can significantly to alleviate Pitot tube weight. (2) adoptDirectly connect (outside by the high-temperature resistant rubber seal of tube) and coordinate cover special barrel bolt, groove closely to sting with primary and secondary jointClose, lock by movable whorl snap close, rational in infrastructure, be convenient to execute-in-place, can significantly increase work efficiencyAnd accuracy of measurement. (3) be designed to detachable combined connection, be convenient to deposit, transport and use. (4)Because first paragraph can be connected use separately or with other several sections, only need a set of combined type S type Pitot tube just passableBe combined into the measurement mechanism that is applicable to various diameters or the interior gas flow rate of length of side flue (or other discharge ducts).
Brief description of the drawings
Fig. 1 is the structural representation of combined type S type Pitot tube of the present invention;
Fig. 2 is the each parts connection diagram of combined type S type Pitot tube shown in Fig. 1;
Fig. 3 is the final connection diagram of combined type S type Pitot tube shown in Fig. 1;
Fig. 4 is the combined type S type Pitot tube body exterior sleeve pipe schematic diagram shown in Fig. 1;
Fig. 5 is the sub-joint schematic diagram of combined type S type Pitot tube shown in Fig. 1;
Fig. 6 is the combined type S type Pitot tube female joint schematic diagram shown in Fig. 1.
Detailed description of the invention
Combined type S type Pitot tube of the present invention as shown in drawings, it comprises Pitot tube body head end pipeline section 1-1And Pitot tube body tail end pipeline section 1-3, described Pitot tube body head end pipeline section and Pitot tube body tail end pipeBetween section, peg graft and be connected to form Pitot tube body by primary and secondary joint 4, at the described primary and secondary joint of pegging graft and being connected4 place's covers have high-temperature resistant rubber pipe 5, on described Pitot tube body head end pipeline section, are fixed with head end outer coverPipe 2-1 is fixed with tail end outer sleeve 2-3, described head on described Pitot tube body tail end pipeline sectionBetween end, tail end outer sleeve, interconnect one of rear formation by steady pin and steady pin inserting slot construction 6 completeCylinder and be mutually interlocked, described Pitot tube body interior tube core diameter is identical, described consolidatingRationed marketing and steady pin inserting slot construction 6 overcoats have nut and the screw-rod structure 3 that can be threaded each other, phaseAfter screwing mutually, the steady pin of two sections of described outer sleeve front ends tightly can be locked together.
According to the requirement, described Pitot tube body head end pipeline section and the Pitot tube body tail end pipeline section that use lengthBetween be connected with pipeline section 1-2 in the middle of at least one, primary and secondary joint 4 is passed through respectively at the two ends of described middle pipeline sectionPeg graft and be connected to form Pitot tube body with Pitot tube body initial and end end tube section, described in being connected in each graftingPrimary and secondary joint 4 places covers have high-temperature resistant rubber pipe 5, be fixed with intermediary outside cover outward at described middle pipeline sectionPipe 2-2, described intermediary outside sleeve pipe 2-2 two ends are logical with head end outer sleeve and tail end outer sleeve respectivelyCross steady pin and steady pin inserting slot construction 6 and interconnect the complete cylinder of rear formation and be mutually interlocked,Described Pitot tube body interior tube core diameter is identical, the outer all covers of steady pin inserting slot construction 6 described in eachThere are nut and the screw-rod structure that can be threaded each other, can be by before two sections of outer sleeves after mutually screwingThe steady pin of end tightly locks together.
The use procedure of this combined type S type Pitot tube is as follows:
1. high-temperature resistant rubber pipe 5 is enclosed within to one end of primary and secondary joint 4, then connects two sections of Pitot tube pipeline sections,High-temperature resistant rubber pipe of interconnective while of primary and secondary joint 45 is connected to the other end and the outside of primary and secondary joint 4Sleeve pipe steady pin and steady pin inserting slot construction 6 are also interlocked mutually;
2. the movable whorl snap close 3 of the steady pin being interlocked and steady pin inserting slot construction 6 outsides is screwed justCan complete the connection of two sections of Pitot tube pipeline sections;
3. repeat above 1,2 liang of step, be connected to applicable length;
If 4. interior diameter/the length of side of tested flue or other discharge ducts is smaller, can use separately skin holderPipe head end first paragraph is measured;
5. concrete flow-speed measurement method is referring to phases such as " waste gas in fixed source Specifications of Monitoring Technology HJ/T397-2007 "Pass standard.
Claims (2)
1. combined type S type Pitot tube, is characterized in that: it comprises Pitot tube body head end pipeline section and Pitot tube body tail endPipeline section, is pegged graft and is connected to form by primary and secondary joint between described Pitot tube body head end pipeline section and Pitot tube body tail end pipeline sectionPitot tube body, has high-temperature resistant rubber pipe at the described primary and secondary joint cover being connected of pegging graft, at described Pitot tube body headOn end tube section, be fixed with head end outer sleeve, on described Pitot tube body tail end pipeline section, be fixed with tail end outer coverPipe, interconnects one of rear formation by steady pin and steady pin inserting slot construction between described head end, tail end outer sleeve completeWhole cylinder and being mutually interlocked, described Pitot tube body interior tube core diameter is identical, described fixingPin and steady pin inserting slot construction overcoat have nut and the screw-rod structure that can be threaded each other.
2. combined type S type Pitot tube according to claim 1, is characterized in that: described Pitot tube body head end pipeBetween section and Pitot tube body tail end pipeline section, be connected with at least one middle pipeline section, the two ends of described middle pipeline section are logical respectivelyCross primary and secondary joint and Pitot tube body initial and end end tube section and peg graft and be connected to form Pitot tube body, in each connected institute of pegging graftThe primary and secondary joint cover of stating has high-temperature resistant rubber pipe, is fixed with intermediary outside sleeve pipe outward at described middle pipeline section, describedIntermediary outside sleeve pipe two ends respectively with head end outer sleeve and tail end outer sleeve by steady pin and steady pin inserting slot constructionInterconnect the complete cylinder of rear formation and be mutually interlocked, the described complete phase of Pitot tube body interior tube core diameterWith, the outer all covers of steady pin inserting slot construction described in each have nut and the screw-rod structure that can be threaded each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310714268.7A CN103675331B (en) | 2013-12-20 | 2013-12-20 | Combined type S type Pitot tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310714268.7A CN103675331B (en) | 2013-12-20 | 2013-12-20 | Combined type S type Pitot tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103675331A CN103675331A (en) | 2014-03-26 |
| CN103675331B true CN103675331B (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310714268.7A Active CN103675331B (en) | 2013-12-20 | 2013-12-20 | Combined type S type Pitot tube |
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| Country | Link |
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| CN (1) | CN103675331B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982906B (en) * | 2017-06-02 | 2024-01-12 | 北京京东尚科信息技术有限公司 | Wind speed pipe |
| CN111505335A (en) * | 2020-04-26 | 2020-08-07 | 上海应用技术大学 | Telescopic S-shaped pitot tube |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203275006U (en) * | 2013-06-03 | 2013-11-06 | 杭州禾风环境科技有限公司 | Sectional type pitot tube |
| CN103344781A (en) * | 2013-06-20 | 2013-10-09 | 国家电网公司 | Combined pitot tube |
| CN203672907U (en) * | 2013-12-20 | 2014-06-25 | 中国海洋石油总公司 | Combined S-shaped pitot tube |
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2013
- 2013-12-20 CN CN201310714268.7A patent/CN103675331B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103675331A (en) | 2014-03-26 |
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Effective date of registration: 20170302 Address after: 100027 Beijing city Dongcheng District Dongzhimen Street No. 6 Patentee after: CNOOC Energy Development Co., Ltd. Patentee after: Company limited of Hai Youzong energy-saving and emission-reduction monitoring center Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, CNOOC building, No. 4705, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Energy Development Co., Ltd. Patentee before: Company limited of Hai Youzong energy-saving and emission-reduction monitoring center |