CN204165995U - A kind of Pitot tube fixator of measuring channel wind speed - Google Patents
A kind of Pitot tube fixator of measuring channel wind speed Download PDFInfo
- Publication number
- CN204165995U CN204165995U CN201420564934.3U CN201420564934U CN204165995U CN 204165995 U CN204165995 U CN 204165995U CN 201420564934 U CN201420564934 U CN 201420564934U CN 204165995 U CN204165995 U CN 204165995U
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- China
- Prior art keywords
- pitot tube
- wind speed
- measuring channel
- block
- knob
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Abstract
The Pitot tube fixator of a kind of measuring channel wind speed of the utility model, comprises fixed position and retaining part, and fixed position comprises lower fixed block and holds out against knob, holds out against knob through lower fixed block; Retaining part comprises outer fixture block, internal clamping block and clamping knob, and outer fixture block and lower fixed block are flexibly connected, and internal clamping block is between outer fixture block and lower fixed block, and clamping knob is through outer fixture block.The Pitot tube fixator of this measuring channel wind speed is by the lower fixed block of fixed position and hold out against knob and be fixed on pipeline, by inside and outside fixture block and the clamping knob clamping Pitot tube of retaining part, in measuring channel during multiple some position, mobile simple to operate, thus improve accuracy, minimizing hand labor intensity, the easy accessibility of measuring channel wind speed, be easy to carry, measure and record and carry out simultaneously, greatly saved human cost.
Description
Technical field
The utility model relates to the device of the Pitot tube of fixation measuring air velocity duct, especially a kind of Pitot tube fixator of measuring channel wind speed.
Background technology
Current in commercial production, daily life and office, adopt ventilation and air conditioning system to carry out environmental protect more and more and ensure safety in production (such as ventilation, dust pelletizing system).Ventilation and air conditioning system, after construction, must carry out the measurement of wind speed, adjustment and balancing work, to determine engineering construction quality and to guarantee that each place all can reach the technological parameter of design.In the measurement of wind speed, adjustment and balancing work, the mensuration of air velocity duct is primary work, and the method that accuracy is high and conventional in the measurement of air velocity duct is at present Pitot tube mensuration, namely in pipeline steady air current place duct wall on open instrument connection, Pitot tube measuring junction is inserted in instrument connection, in measuring channel, the wind speed of difference position on an xsect, calculates air velocity duct after averaging.
During current in-site measurement, tester must a hand-held Pitot tube, make Pitot tube vertical with duct wall and the indicator stem in Pitot tube direction must just to air-flow to, proficiency holds digital micromanometer (microbarograph is connected with Pitot tube by flexible pipe) in addition.When reading with hand keep the insertion depth of Pitot tube and direction constant, the time is slightly long, and tester's arm will be tired, and only fixes with hand and hold up steady, greatly have impact on last the accuracy surveying data.Because in-site measurement must record raw data simultaneously, a tester cannot realize carrying out record while measurement, and therefore air velocity duct is measured at least needs two testers just can carry out.Simultaneously in order to ensure the accuracy of measuring, measurement point should be evenly distributed on whole cross-section of pipeline, and the spacing of adjacent measurement points position generally can not be greater than 200mm, so just cause the measurement point number ratio on pipeline that sectional area is larger more, often be greater than 25 some positions, the workload of such tester will be very large.
In the middle of prior art, some air velocity duct measurement mechanisms carry support, but this equipment cost is higher, and installing/dismounting is comparatively complicated, are not easy to carry and execute-in-place, and cannot be applicable to the pipeline of various model.A kind of Pitot tube special stand is described in the utility model patent " the Pitot tube special stand of measuring channel wind speed " of application number CN201220646474.X, take elastic reducing-fixing band and pipeline to bundle connected mode to fix special stand, but pipeline at the construction field (site) often has external thermal insulation, therefore be unsuitable for taking to bundle the fixed form connected, and the size of this special stand is comparatively large, troublesome poeration, is therefore unsuitable for execute-in-place and carries.
Utility model content
The technical problems to be solved in the utility model be to provide a kind of measurement accuracy high, drop into that labour intensity is little, the Pitot tube fixator of the measuring channel wind speed of easy accessibility.
The technical scheme realizing the utility model object is: a kind of Pitot tube fixator of measuring channel wind speed, comprises fixed position and retaining part, and fixed position comprises lower fixed block and holds out against knob, holds out against knob through lower fixed block; Retaining part comprises outer fixture block, internal clamping block and clamping knob, and outer fixture block and lower fixed block are flexibly connected, and internal clamping block is between outer fixture block and lower fixed block, and clamping knob is through outer fixture block.
As prioritization scheme of the present utility model, lower fixed block comprises the lower holding tank on top, the chute of both sides and the back up pad of bottom, holds out against knob through back up pad.
As prioritization scheme of the present utility model, lower fixed block is provided with hook tabs.
As prioritization scheme of the present utility model, hook tabs shape is U-shaped, rectangle or triangle.
As prioritization scheme of the present utility model, outer fixture block comprises the slide rail corresponding to chute.
As prioritization scheme of the present utility model, internal clamping block comprises the upper holding tank corresponding to lower holding tank.
As prioritization scheme of the present utility model, the Pitot tube fixator of measuring channel wind speed also comprises the blinker be enclosed within Pitot tube, and blinker is close to pipeline outer wall.
The utility model has positive effect: the Pitot tube fixator of this measuring channel wind speed is by the lower fixed block of fixed position and hold out against knob and be fixed on pipeline, by inside and outside fixture block and the clamping knob clamping Pitot tube of retaining part, in measuring channel during multiple some position, mobile simple to operate, thus improve accuracy, minimizing hand labor intensity, the easy accessibility of measuring channel wind speed, be easy to carry.Digital micromanometer can be hung over by lanyard holds out against on knob simultaneously, measures and records and carry out simultaneously, saved human cost greatly.
Accompanying drawing explanation
In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail:
Fig. 1 is structural drawing of the present utility model;
Figure 2 shows that the structural drawing of fixed position;
Figure 3 shows that the structural drawing of retaining part;
Fig. 4 is enforcement illustration of the present utility model.
Wherein: 11, lower fixed block, 12, hold out against knob, 21, outer fixture block, 22, internal clamping block, 23, clamping knob, 111, lower holding tank, 112, chute, 113, back up pad, 114, hook tabs, 211, slide rail, 221, upper holding tank, 3, blinker, 4, instrument connection, 5, indicator stem, 6, Pitot tube.
Embodiment
As shown in Figure 1, the utility model is a kind of Pitot tube fixator of measuring channel wind speed, comprises fixed position and retaining part, and wherein fixed position comprises lower fixed block 11 and holds out against knob 12, holds out against knob 12 through lower fixed block 11; Retaining part comprises outer fixture block 21, internal clamping block 22 and clamping knob 23, and outer fixture block 21 and lower fixed block 11 are flexibly connected, and internal clamping block 22 is between outer fixture block 21 and lower fixed block 11, and clamping knob 23 is through outer fixture block 21.
If Fig. 2 is the structural drawing of fixed position, fixed position comprises lower fixed block 11 and holds out against knob 12, and lower fixed block 11 comprises the back up pad 113 of the lower holding tank 111 on top, the chute 112 of both sides and bottom, holds out against knob 12 through back up pad 113.Lower fixed block 11 is provided with hook tabs 114, the shape of hook tabs 114 can be rectangle, U-shaped or triangle, during measurement, pipeline is opened instrument connection 4, hook tabs 114 also catches on inner-walls of duct downwards through instrument connection 4, holding out against knob 12 by adjustment is fixed on fixator on duct wall, wherein Pitot tube 6 is placed on lower holding tank 111, lower holding tank 111 holds Pitot tube 6 through instrument connection 4, the Pitot tube fixator of measuring channel wind speed also comprises the blinker 3 be enclosed within Pitot tube 6, blinker 3 is close to pipeline outer wall, blinker 3 is between lower holding tank 111 and pipeline outer wall, opening size above blinker 3 matches with Pitot tube 6, opening inserts Pitot tube 6, blinker 3 makes to be greatly reduced by the inleakage of instrument connection 4.
Be illustrated in figure 3 the structural representation of retaining part, retaining part comprises outer fixture block 21, internal clamping block 22 and clamping knob 23, and wherein outer fixture block 21 comprises the slide rail 211 corresponding to chute 112, and slide rail 211 moves around in chute 112, is convenient to install outer fixture block 21.Internal clamping block 22 comprises the upper holding tank 221 corresponding to lower holding tank 111, and when upper holding tank 221 and lower holding tank 111 coordinate, centre is circular hole, is suitable for Pitot tube 6 and passes thus clamp Pitot tube 6, and make Pitot tube 6 outer wall uniform force, not fragile.Clamping knob 23 is through outer fixture block 21 simultaneously, acts on internal clamping block 22, makes Pitot tube 6 fixing more firmly stable.
Embodiment:
The enforcement illustration of the Pitot tube fixator of measuring channel wind speed as shown in Figure 4, when installing and measuring the Pitot tube fixator of air velocity duct, first the hook tabs 114 of lower fixed block 11 stretched into instrument connection 4 and catch on downwards, the lanyard of digital micromanometer is hung over hold out against to tighten after on knob 12 and hold out against knob 12, fixed position is fixed on duct wall, by the lower holding tank 111 being put into lower fixed block 11 by retaining part of Pitot tube 6, then the opening of blinker 3 insertion Pitot tube 6 is against duct wall to insert downwards to the end, the chute 112 slide rail 211 of the outer fixture block 21 of band clamping knob 23 being aimed at lower fixed block 11 again slips into, slip into the end always, until blinker 3 is pushed up in the end of outer fixture block 21, the upper holding tank 221 of internal clamping block 22 is made to touch Pitot tube 6 again, internal clamping block 22 is slided in the gap that outer fixture block 21 and lower fixed block 11 form, slip into the end always, until blinker 3 is pushed up in the end of internal clamping block 22, the direction of the indicator stem 5 of Pitot tube 6 is adjusted to just to air-flow in pipeline tighten clamping knob 23 backward after, namely the measuring wind speed of a some position can be carried out, when changing next some bit test, only clamping knob 23 need be unclamped, clamping knob 23 is tightened again after being moved into place by Pitot tube 6, the measuring wind speed of this some position can be carried out, after the test point position of instrument connection 4 correspondence is all measured, then according to the order contrary with installation, fixator is taken off, move on to another one instrument connection, then carry out the work of the fixing of Pitot tube 6 and measuring wind according to above-mentioned order.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. the Pitot tube fixator of a measuring channel wind speed, comprise fixed position and retaining part, it is characterized in that: described fixed position comprises lower fixed block (11) and holds out against knob (12), described in hold out against knob (12) through lower fixed block (11); Described retaining part comprises outer fixture block (21), internal clamping block (22) and clamping knob (23), described outer fixture block (21) and lower fixed block (11) are flexibly connected, described internal clamping block (22) is positioned between outer fixture block (21) and lower fixed block (11), and described clamping knob (23) is through described outer fixture block (21).
2. the Pitot tube fixator of a kind of measuring channel wind speed according to claim 1, it is characterized in that: described lower fixed block (11) comprises the back up pad (113) of the lower holding tank (111) on top, the chute (112) of both sides and bottom, described in hold out against knob (12) through back up pad (113).
3. the Pitot tube fixator of a kind of measuring channel wind speed according to claim 1 and 2, is characterized in that: described lower fixed block (11) is provided with hook tabs (114).
4. the Pitot tube fixator of a kind of measuring channel wind speed according to claim 3, is characterized in that: described hook tabs (114) shape is U-shaped, rectangle or triangle.
5. the Pitot tube fixator of a kind of measuring channel wind speed according to claim 1 and 2, is characterized in that: described outer fixture block (21) comprises the corresponding slide rail (211) with chute (112).
6. the Pitot tube fixator of a kind of measuring channel wind speed according to claim 1 and 2, is characterized in that: described internal clamping block (22) comprises goes up holding tank (221) accordingly with lower holding tank (111).
7. the Pitot tube fixator of a kind of measuring channel wind speed according to claim 1 and 2, it is characterized in that: the Pitot tube fixator of described measuring channel wind speed also comprises the blinker (3) be enclosed within Pitot tube (6), and described blinker (3) is close to pipeline outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420564934.3U CN204165995U (en) | 2014-09-28 | 2014-09-28 | A kind of Pitot tube fixator of measuring channel wind speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420564934.3U CN204165995U (en) | 2014-09-28 | 2014-09-28 | A kind of Pitot tube fixator of measuring channel wind speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204165995U true CN204165995U (en) | 2015-02-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420564934.3U Expired - Fee Related CN204165995U (en) | 2014-09-28 | 2014-09-28 | A kind of Pitot tube fixator of measuring channel wind speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204165995U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525622A (en) * | 2017-09-19 | 2017-12-29 | 中国水利水电科学研究院 | L-type Pitot tube stationary positioned device |
| CN109696558A (en) * | 2018-05-11 | 2019-04-30 | 中电华创电力技术研究有限公司 | It is a kind of for measuring the portable rack of pipeline fluid velocity inside |
-
2014
- 2014-09-28 CN CN201420564934.3U patent/CN204165995U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525622A (en) * | 2017-09-19 | 2017-12-29 | 中国水利水电科学研究院 | L-type Pitot tube stationary positioned device |
| CN109696558A (en) * | 2018-05-11 | 2019-04-30 | 中电华创电力技术研究有限公司 | It is a kind of for measuring the portable rack of pipeline fluid velocity inside |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 210046 No. 9 Yaohua Menyaojia Road, Qixia District, Nanjing City, Jiangsu Province Co-patentee after: NANJING HUAJIAN INDUSTRIAL EQUIPMENT INSTALLATION DETECTION AND DEBUGGING Co.,Ltd. Patentee after: CHINA CONSTRUCTION INDUSTRIAL & ENERGY ENGINEERING GROUP Co.,Ltd. Address before: 210046 No. 9 Yaohua Menyaojia Road, Qixia District, Nanjing City, Jiangsu Province Co-patentee before: NANJING HUAJIAN INDUSTRIAL EQUIPMENT INSTALLATION DETECTION AND DEBUGGING Co.,Ltd. Patentee before: China Construction Installation Engineering Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |