CN204188206U - Mean velocity tube flowmeter is popped one's head in - Google Patents
Mean velocity tube flowmeter is popped one's head in Download PDFInfo
- Publication number
- CN204188206U CN204188206U CN201420734111.0U CN201420734111U CN204188206U CN 204188206 U CN204188206 U CN 204188206U CN 201420734111 U CN201420734111 U CN 201420734111U CN 204188206 U CN204188206 U CN 204188206U
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- low pressure
- web joint
- feeler lever
- high pressure
- mean velocity
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Abstract
The utility model discloses a kind of mean velocity tube flowmeter probe, comprise feeler lever and be located at the web joint for connecting measuring instrument on described feeler lever, described feeler lever is provided with high pressure chest, low pressure chamber, high-tension measurement hole and low pressure measurement hole, described web joint is provided with the high pressure pressure port and low pressure pressure port that are communicated with high pressure chest and low pressure chamber respectively, described probe also comprises the temperature head casing tube for placing temperature element and is set in the outer and installation sleeve for installing described temperature head casing tube of feeler lever, and described web joint is provided with the thermometer hole communicated with described installation sleeve inner chamber; Mean velocity tube flowmeter probe of the present utility model, the temperature head casing tube that temperature element is housed is positioned in installation sleeve, installation sleeve together stretches into pipe under test with feeler lever, the surveying instrument be connected with web joint can receive pressure medium and temperature information, realize flow measurement, can also temperature survey be realized simultaneously, in-site installation be measured more simple and convenient.
Description
Technical field
The utility model relates to a kind of flow measurement, and particularly a kind of mean velocity tube flowmeter is popped one's head in.
Background technology
Mean velocity tube flowmeter is simple, cheap, the energy-conservation flow measurement device of a kind of structure, and probe is the measure portion of flowmeter, generally comprises feeler lever and web joint; Feeler lever is a hollow and is split into the Metallic rod of high pressure chest and low pressure chamber, the fluoran stream surface of feeler lever is distributed with the high-tension measurement hole be connected with high pressure chest, the side (or relative back side) adjacent with fluoran stream surface is provided with one or more low pressure measurement hole be connected with low pressure chamber; In addition, feeler lever one end is closed, the other end is connected with web joint; Web joint, then for connecting feeler lever and measuring instrument, on web joint except arranging corresponding connecting hole, is also provided with the high pressure pressure port and low pressure pressure port that are communicated with high pressure chest and low pressure chamber respectively; During measurement, feeler lever stretches into pipeline, and pressure medium is drawn by high-low pressure chamber and obtained differential pressure by surveying instrument, and this differential pressure value and pipeline flow have the algebraic relation determined.Existing mean velocity tube flowmeter probe only has pressure function, can not realize temperature survey, Measurement accuracy temperature, also to need in pipe under test independent perforate with mounting temperature sensor, thus causes site operation loaded down with trivial details.
Therefore, just need a kind of mean velocity tube flowmeter to pop one's head in, make it not only have pressure function, realize flow measurement, can also temperature survey be realized simultaneously, in-site installation is measured more simple and convenient.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of mean velocity tube flowmeter to pop one's head in, and it not only has pressure function, realizes flow measurement, can also realize temperature survey simultaneously, in-site installation is measured more simple and convenient.
Mean velocity tube flowmeter probe of the present utility model, comprise feeler lever and be located at the web joint for connecting measuring instrument on described feeler lever, described feeler lever is provided with high pressure chest, low pressure chamber, high-tension measurement hole and low pressure measurement hole, described web joint is provided with the high pressure pressure port and low pressure pressure port that are communicated with high pressure chest and low pressure chamber respectively, described probe also comprises the temperature head casing tube for placing temperature element and is set in the outer and installation sleeve for installing described temperature head casing tube of feeler lever, and described web joint is provided with the thermometer hole communicated with described installation sleeve inner chamber.
Further, described temperature head casing tube one end is closed, the other end docks with thermometer hole.
Further, the top of described installation sleeve is fixedly connected with the bottom of web joint, and the bottom of described installation sleeve and the shaft of feeler lever are tightly connected.
Further, the clean-out opening I communicated with high pressure chest is also offered bottom described feeler lever and the clean-out opening II that is communicated with low pressure chamber.
Further, described probe also comprises the switch member I and switch member II that are respectively used to open or close described clean-out opening I and clean-out opening II.
Further, described clean-out opening I and clean-out opening II are screw, and described switch member I and switch member II are the trip bolt matched with described screw.
Further, be provided with high pressure duct and low pressure duct in described web joint, described high pressure pressure port is communicated with high pressure chest by high pressure duct, and described low pressure pressure port is communicated with low pressure chamber by low pressure duct; Described high pressure duct and low pressure duct are equipped with opening, and described probe also comprises the switch member III for opening or close described opening.
Further, described switch member III is coaxially stretch into the fastening bolt in described high pressure duct or low pressure duct, is also provided with sealing gasket between described switch member III and respective openings.
Further, described web joint is flat flange structure.
Further, fix with welding manner between described feeler lever and web joint, fix with welding manner between described installation sleeve and web joint, fix with welding manner between described temperature head casing tube and web joint.
The beneficial effects of the utility model: mean velocity tube flowmeter probe of the present utility model, the temperature head casing tube that temperature element is housed is positioned in installation sleeve, installation sleeve together stretches into pipe under test with feeler lever, the surveying instrument be connected with web joint can receive pressure medium and temperature information, realize flow measurement, can also temperature survey be realized simultaneously, in-site installation be measured more simple and convenient.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A-A view in Fig. 1;
Fig. 3 is B-B view in Fig. 1.
Embodiment
Fig. 1 is structural representation of the present utility model, Fig. 2 is A-A view in Fig. 1, Fig. 3 is B-B view in Fig. 1, as shown in the figure: the mean velocity tube flowmeter probe of the present embodiment, comprise feeler lever 1 and be located at the web joint 2 for connecting measuring instrument on described feeler lever 1, described feeler lever 1 is provided with high pressure chest 11, low pressure chamber 12, high-tension measurement hole 13 and low pressure measurement hole 14, described web joint 2 is provided with the high pressure pressure port 21 and low pressure pressure port 22 that are communicated with high pressure chest 11 and low pressure chamber 12 respectively, described probe also comprises the temperature head casing tube 3 for placing temperature element (not shown) and is set in the outer and installation sleeve 4 for installing described temperature head casing tube 3 of feeler lever 1, described web joint 2 is provided with the thermometer hole 23 communicated with described installation sleeve 4 inner chamber, temperature element can be temperature sensor, temperature head casing tube 3 and installation sleeve 4 all have good heat conductivility, with Measurement accuracy medium temperature, high pressure pressure port 21 and low pressure pressure port 22 all connect the surveying instruments such as pressure guiding pipe, and this part-structure can adopt prior art, does not repeat them here, installation sleeve 4 is preferably ring-type and socket-connects with feeler lever 1, is convenient to processing and manufacturing, is convenient to be drilled with measured hole in pipe under test simultaneously, the temperature head casing tube 3 that temperature element is housed is positioned in installation sleeve 4, installation sleeve 4 together stretches into pipe under test with feeler lever 1, the surveying instrument be connected with web joint 2 can receive pressure medium and temperature information, realize flow measurement, can also temperature survey be realized simultaneously, in-site installation be measured more simple and convenient.
In the present embodiment, one end of described temperature head casing tube 3 is closed, the other end docks with thermometer hole 23; Be convenient to the placement of temperature element and the connection with temperature measuring device thereof; Temperature head casing tube 3 pairs of temperature elements of this structure have preferably fixing and protective effect.
In the present embodiment, the top of described installation sleeve 4 is fixedly connected with the bottom of web joint 2, and the bottom of described installation sleeve 4 and the shaft of feeler lever 1 are tightly connected; Installation sleeve 4 has the effect of isolated testing medium, and its inner chamber only communicates with thermometer hole 23; This is fixedly connected with can be existing any fixed form, as one-body molded or welding manner; Shrouding 41 separately can be established to form sealing effectiveness in the bottom of installation sleeve 4; Certainly, also can be extend to feeler lever 1 bottom installation sleeve 4 and be tightly connected.
In the present embodiment, the clean-out opening II 16 also offering the clean-out opening I 15 communicated with high pressure chest 11 bottom described feeler lever 1 and be communicated with low pressure chamber 12; Because mean velocity tube flowmeter must realize measuring by the measured hole (comprising high-tension measurement hole 13 and low pressure measurement hole 14) on feeler lever 1, as long as containing impurity such as dust, coagulum, solid particles in testing medium, feeler lever 1 blocks and is just difficult to avoid; By arranging clean-out opening (comprising clean-out opening I 15 and clean-out opening II 16), the function this probe being had just clean, solve feeler lever 1 blockage problem, ensure that measuring accuracy and the stability of pick-up unit, be specially adapted to the occasion that the conditions such as colliery are extremely severe; In the present embodiment, described probe also comprises the switch member I 51 and switch member II 52 that are respectively used to open or close described clean-out opening I 15 and clean-out opening II 16; Described clean-out opening I 15 and clean-out opening II 16 are screw, and described switch member I 51 and switch member II 52 are the trip bolt matched with described screw; Should sealing effectiveness be had when trip bolt is connected with clean-out opening, the pressure loss and signal fluctuation when avoiding causing measurement, improve measurement accuracy.
In the present embodiment, be provided with high pressure duct 24 and low pressure duct 25 in described web joint 2, described high pressure pressure port 21 is communicated with high pressure chest 11 by high pressure duct 24, and described low pressure pressure port 22 is communicated with low pressure chamber 12 by low pressure duct 25; Described high pressure duct 24 and low pressure duct 25 are equipped with opening, and described probe also comprises the switch member III 53 for opening or close described opening; High pressure duct 24 and low pressure duct 25 are preferably radial duct, and opening is located at the side of web joint 2; Passage during pressure is not only in duct (comprising high pressure duct 24 and low pressure duct 25), and has coordinated the cleaning blowback to feeler lever 1 inner chamber with clean-out opening; Load onto switch member III 53 when measuring with closedown, sealed open, now duct is used for pressure; Pulling down switch member III 53 to open opening when cleaning, cleaning can be realized from opening part perfusion rinse water; In the present embodiment, described switch member III 53 is coaxially stretch into the fastening bolt in described high pressure duct 24 or low pressure duct 25, is also provided with sealing gasket 6 between described switch member III 53 and respective openings, and pressure release when preventing from measuring, affects the accuracy of measurement result.
In the present embodiment, described web joint 2 is flat flange structure, just with installation, dismantle and keep in repair; Fix with welding manner between described feeler lever 1 and web joint 2, fix with welding manner between described installation sleeve 4 and web joint 2, fix with welding manner between described temperature head casing tube 3 and web joint 2, make connection fastening, reliable.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (10)
1. a mean velocity tube flowmeter probe, comprise feeler lever and be located at the web joint for connecting measuring instrument on described feeler lever, described feeler lever is provided with high pressure chest, low pressure chamber, high-tension measurement hole and low pressure measurement hole, described web joint is provided with the high pressure pressure port and low pressure pressure port that are communicated with high pressure chest and low pressure chamber respectively, it is characterized in that: described probe also comprises the temperature head casing tube for placing temperature element and is set in the outer and installation sleeve for installing described temperature head casing tube of feeler lever, and described web joint is provided with the thermometer hole communicated with described installation sleeve inner chamber.
2. mean velocity tube flowmeter probe according to claim 1, is characterized in that: one end of described temperature head casing tube is closed, the other end docks with thermometer hole.
3. mean velocity tube flowmeter probe according to claim 1, it is characterized in that: the top of described installation sleeve is fixedly connected with the bottom of web joint, the bottom of described installation sleeve and the shaft of feeler lever are tightly connected.
4. mean velocity tube flowmeter probe according to claim 1, is characterized in that: also offer the clean-out opening I communicated with high pressure chest and the clean-out opening II be communicated with low pressure chamber bottom described feeler lever.
5. mean velocity tube flowmeter probe according to claim 4, is characterized in that: described probe also comprises the switch member I and switch member II that are respectively used to open or close described clean-out opening I and clean-out opening II.
6. mean velocity tube flowmeter probe according to claim 5, it is characterized in that: described clean-out opening I and clean-out opening II are screw, described switch member I and switch member II are the trip bolt matched with described screw.
7. mean velocity tube flowmeter probe according to claim 5, it is characterized in that: in described web joint, be provided with high pressure duct and low pressure duct, described high pressure pressure port is communicated with high pressure chest by high pressure duct, and described low pressure pressure port is communicated with low pressure chamber by low pressure duct; Described high pressure duct and low pressure duct are equipped with opening, and described probe also comprises the switch member III for opening or close described opening.
8. mean velocity tube flowmeter probe according to claim 7, is characterized in that: described switch member III is coaxially stretch into the fastening bolt in described high pressure duct or low pressure duct, is also provided with sealing gasket between described switch member III and respective openings.
9. mean velocity tube flowmeter probe according to claim 1, is characterized in that: described web joint is flat flange structure.
10. mean velocity tube flowmeter probe according to claim 1, it is characterized in that: fix with welding manner between described feeler lever and web joint, fix with welding manner between described installation sleeve and web joint, fix with welding manner between described temperature head casing tube and web joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420734111.0U CN204188206U (en) | 2014-11-27 | 2014-11-27 | Mean velocity tube flowmeter is popped one's head in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420734111.0U CN204188206U (en) | 2014-11-27 | 2014-11-27 | Mean velocity tube flowmeter is popped one's head in |
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| Publication Number | Publication Date |
|---|---|
| CN204188206U true CN204188206U (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420734111.0U Active CN204188206U (en) | 2014-11-27 | 2014-11-27 | Mean velocity tube flowmeter is popped one's head in |
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| CN (1) | CN204188206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457861A (en) * | 2014-11-27 | 2015-03-25 | 中煤科工集团重庆研究院有限公司 | Velocity-averaging tube flow meter probe |
-
2014
- 2014-11-27 CN CN201420734111.0U patent/CN204188206U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457861A (en) * | 2014-11-27 | 2015-03-25 | 中煤科工集团重庆研究院有限公司 | Velocity-averaging tube flow meter probe |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |