CN103675331A - Combined type S-shaped pitot tube - Google Patents
Combined type S-shaped pitot tube Download PDFInfo
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- CN103675331A CN103675331A CN201310714268.7A CN201310714268A CN103675331A CN 103675331 A CN103675331 A CN 103675331A CN 201310714268 A CN201310714268 A CN 201310714268A CN 103675331 A CN103675331 A CN 103675331A
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- pitot tube
- tube body
- pipeline section
- fixed pin
- end pipeline
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Abstract
The invention discloses a combined type S-shaped pitot tube. The combined type S-shaped pitot tube comprises a pitot tube body head-end tube section and a pitot tube body tail-end tube section, wherein the pitot tube body head-end tube section and the pitot tube body tail-end tube section are in plug connection through a sub-master joint to form a pitot tube body; a high temperature resistant rubber tube is sleeved at the sub-master joint in plug connection; a head-end outer sleeve is fixedly sleeved on the pitot tube body head-end tube section; a tail-end outer sleeve is fixedly sleeved on the pitot tube body tail-end tube section; the head-end outer sleeve and the tail-end outer sleeve are mutually connected through a fixed pin and a fixed pin slot structure to form an integral cylinder and are mutually hinged together; the diameters of tube cores at the interior of the pitot tube body are the same; nut and screw structures capable of threaded connection are sleeved outside the fixed pin and the fixed pin slot structure. The structure can be combined into any length, is convenient to carry and operate for field connection/disassembling, thus being capable of greatly improving the work efficiency and measuring accuracy.
Description
Technical field
The present invention relates to a kind ofly for measuring the S type pitot tube of gas flow rate in flue or other gas exhaust ducts, be specially adapted to the measurement that interior diameter or the length of side are greater than gas flow rate in the ultra-large type flue of 3 meters or other gas exhaust ducts.
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 the measurement of gas flow rate in flue or other gas exhaust ducts, and according to the requirement of the relevant criterion such as < < waste gas in fixed source Specifications of Monitoring Technology HJ/T397-2007 > >, in gas flow rate measuring process, need according to sample point flue or other gas exhaust duct cross sectional shape (circles, rectangle or square) and the difference of diameter or size dimension, 1～20 monitoring site is set, by the measured gas flow rate in difference position on same cross section is got to its arithmetic mean value, calculate the mean flow rate of this section gas.
In actual monitoring process, can often run into ultra-large type flue or other gas exhaust ducts that interior diameter or the length of side are greater than 3 meters (even reaching 6～7 meters of left and right) at the scene.Now the monitoring site of farthest will be much larger than 3 meters (the length sum of flue wall thickness and sampling flange be generally 0.5～0.9 meter of left and right) at a distance of the distance of thief hatch, the length of common S type pitot tube is difficult to meet request for utilization, if S type pitot tube is made into 3 meters of even length of 6～7 meters, depositing at ordinary times, in transportation and use procedure, can bring very large difficulty.
Denomination of invention is " combined type pitot tube ", the patent No. is the disclosed combined type pitot tube of the Chinese patent of CN201310246360.5, it comprises backrest type pitot tube and the fairlead being attached thereto, backrest type pitot tube is stuck in head connector, stretch out at two ends, head connector two-port is offered external thread, one end is connected with protective cover, by backrest type pitot tube head cover in the inner, the other end is connected with extension tube, by backrest type pitot tube afterbody cover in the inner, in extension tube another end, be connected with end cap, in end cap, card has fairlead, fairlead is connected by silicone tube with backrest type pitot tube.But this pipe connected mode and method of operating are unreasonable, adopt the way that connects rubber hose in hollow tubular, need to prepare many groups rubber hose different in size, to meet the needs of various combination length; And very inconvenience of operation, causes adverse effect to the actual use in the monitoring field finite space when pattern length is longer.
Summary of the invention
The object of the invention is to solve the problem that existing S type pitot tube is difficult to measure different monitoring points position gas flow rate in ultra-large type flue or other gas exhaust ducts accurately, comprehensively, provide a kind of and both can so that deposit, transport, also can be applicable to measure easily and efficiently the combined type S type pitot tube of all monitoring sites place gas flow rate in limited monitoring space.
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 tail end pipeline section, between described pitot tube body head end pipeline section and pitot tube body tail end pipeline section, by primary and secondary joint, peg graft and be connected to form pitot tube body, at the described primary and secondary joint cover being connected of pegging graft, there is high-temperature resistant rubber pipe, on described pitot tube body head end pipeline section, be fixed with head end outer sleeve, on described pitot tube body tail end pipeline section, be fixed with tail end outer sleeve, described head end, between tail end outer sleeve, by fixed pin and fixed pin inserting slot construction, interconnect complete right cylinder of rear formation and be mutually interlocked, described pitot tube body interior tube core diameter is identical, at described fixed pin and fixed pin inserting slot construction overcoat, there is nut and the screw-rod structure that can be threaded each other.
Beneficial effect of the present invention: (1) by the combined type S type pitot tube that adopts special material to be made, is guaranteeing beyond due rigidity and the performance such as high temperature resistant, can significantly to alleviate pitot tube weight.(2) adopt primary and secondary joint directly connect (outside by the high-temperature resistant rubber seal of tube) and coordinate cover special barrel bolt, the tight interlock of groove, by movable whorl snap close, lock, rational in infrastructure, be convenient to execute-in-place, can significantly increase work efficiency and 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 can be combined into the measurement mechanism that is applicable to various diameters or the interior gas flow rate of length of side flue (or other gas exhaust ducts).
Accompanying drawing explanation
Fig. 1 is the structural representation of combined type S type pitot tube of the present invention;
Fig. 2 is 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.
Embodiment
Combined type S type pitot tube of the present invention as shown in drawings, it comprises pitot tube body head end pipeline section 1-1 and pitot tube body tail end pipeline section 1-3, between described pitot tube body head end pipeline section and pitot tube body tail end pipeline section, by primary and secondary joint 4, peg graft and be connected to form pitot tube body, at the described primary and secondary joint 4 place's covers that are connected of pegging graft, there is high-temperature resistant rubber pipe 5, on described pitot tube body head end pipeline section, be fixed with head end outer sleeve 2-1, on described pitot tube body tail end pipeline section, be fixed with tail end outer sleeve 2-3, described head end, between tail end outer sleeve, by fixed pin and fixed pin inserting slot construction 6, interconnect complete right cylinder of rear formation and be mutually interlocked, described pitot tube body interior tube core diameter is identical, at described fixed pin and fixed pin inserting slot construction 6 overcoats, there is nut and the screw-rod structure 3 that can be threaded each other, after mutually screwing, the fixed pin of two sections of described outer sleeve front ends tightly can be locked together.
According to the requirement of using length, between described pitot tube body head end pipeline section and pitot tube body tail end pipeline section, be connected with at least one middle pipeline section 1-2, the two ends of described middle pipeline section are first by primary and secondary joint 4 and pitot tube body respectively, tail end pipeline section is pegged graft and is connected to form pitot tube body, at each described primary and secondary joint 4 place's cover that are connected of pegging graft, there is high-temperature resistant rubber pipe 5, at described middle pipeline section, be fixed with intermediary outside sleeve pipe 2-2 outward, described intermediary outside sleeve pipe 2-2 two ends are interconnected the complete right cylinder of rear formation and are mutually interlocked by fixed pin and fixed pin inserting slot construction 6 with pitot tube body head end pipeline section and pitot tube body tail end pipeline section respectively, described pitot tube body interior tube core diameter is identical, the outer all covers of fixed pin inserting slot construction 6 described in each have nut and the screw-rod structure that can be threaded each other, after mutually screwing, the fixed pin of two sections of outer sleeve front ends tightly can be locked 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 connect two sections of pitot tube pipeline sections, at high-temperature resistant rubber pipe of interconnective while of primary and secondary joint 45, be connected to the other end of primary and secondary joint 4 and outer sleeve fixed pin and fixed pin inserting slot construction 6 and be also mutually interlocked;
2. the movable whorl snap close 3 of the fixed pin being interlocked and fixed pin inserting slot construction 6 outsides is screwed to the connection that just can complete two sections of pitot tube pipeline sections;
3. repeat above 1,2 liang of step, be connected to applicable length;
4., if the interior diameter/length of side of tested flue or other gas exhaust ducts is smaller, can use separately pitot tube head end first paragraph to measure;
5. concrete flow-speed measurement method is referring to relevant criterion such as < < waste gas in fixed source Specifications of Monitoring Technology HJ/T397-2007 > >.
Claims (2)
1. combined type S type pitot tube, it is characterized in that: it comprises pitot tube body head end pipeline section and pitot tube body tail end pipeline section, between described pitot tube body head end pipeline section and pitot tube body tail end pipeline section, by primary and secondary joint, peg graft and be connected to form pitot tube body, at the described primary and secondary joint cover being connected of pegging graft, there is high-temperature resistant rubber pipe, on described pitot tube body head end pipeline section, be fixed with head end outer sleeve, on described pitot tube body tail end pipeline section, be fixed with tail end outer sleeve, described head end, between tail end outer sleeve, by fixed pin and fixed pin inserting slot construction, interconnect complete right cylinder of rear formation and be mutually interlocked, described pitot tube body interior tube core diameter is identical, at described fixed pin and fixed pin inserting slot construction overcoat, there is nut and the screw-rod structure that can be threaded each other.
2. combined type S type pitot tube according to claim 1, it is characterized in that: between described pitot tube body head end pipeline 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 first by primary and secondary joint and pitot tube body respectively, tail end pipeline section is pegged graft and is connected to form pitot tube body, at each described primary and secondary joint cover being connected of pegging graft, there is high-temperature resistant rubber pipe, at described middle pipeline section, be fixed with intermediary outside sleeve pipe outward, described intermediary outside sleeve pipe two ends are interconnected the complete right cylinder of rear formation and are mutually interlocked by fixed pin and fixed pin inserting slot construction with pitot tube body head end pipeline section and pitot tube body tail end pipeline section respectively, described pitot tube body interior tube core diameter is identical, the outer all covers of fixed 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 true CN103675331A (en) | 2014-03-26 |
| CN103675331B CN103675331B (en) | 2016-05-04 |
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| 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982906A (en) * | 2017-06-02 | 2018-12-11 | 北京京东尚科信息技术有限公司 | Pitot-static tube |
| CN111505335A (en) * | 2020-04-26 | 2020-08-07 | 上海应用技术大学 | Telescopic S-shaped pitot tube |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344781A (en) * | 2013-06-20 | 2013-10-09 | 国家电网公司 | Combined pitot tube |
| CN203275006U (en) * | 2013-06-03 | 2013-11-06 | 杭州禾风环境科技有限公司 | Sectional type pitot tube |
| CN203672907U (en) * | 2013-12-20 | 2014-06-25 | 中国海洋石油总公司 | Combined S-shaped pitot tube |
-
2013
- 2013-12-20 CN CN201310714268.7A patent/CN103675331B/en active Active
Patent Citations (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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982906A (en) * | 2017-06-02 | 2018-12-11 | 北京京东尚科信息技术有限公司 | Pitot-static tube |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103675331B (en) | 2016-05-04 |
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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 |