CN103148978A - Even pressure sleeve for measurement of static pressure of pipeline fracture surface - Google Patents
Even pressure sleeve for measurement of static pressure of pipeline fracture surface Download PDFInfo
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- CN103148978A CN103148978A CN2013100431116A CN201310043111A CN103148978A CN 103148978 A CN103148978 A CN 103148978A CN 2013100431116 A CN2013100431116 A CN 2013100431116A CN 201310043111 A CN201310043111 A CN 201310043111A CN 103148978 A CN103148978 A CN 103148978A
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- static pressure
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- pressure sleeve
- measurement
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Abstract
The invention provides an even pressure sleeve for measurement of static pressure of a pipeline fracture surface, and belongs to the technical field of engineering fluid mechanics measurement. The even pressure sleeve is composed of a round-ring-shaped top plate, a bottom plate and an outer side plate in an encircling mode on the outer wall of a to-be-measured pipeline, the top plate and the bottom plate are made of transparent materials, the outer side plate is connected with the outer round edge of the top plate and the outer round edge of the bottom plate, the inner round edge of the top plate and the inner round edge of the bottom plate are connected on the outer wall of the to-be-measured pipeline in a tightly abutting mode, eight pressure taking hoes are evenly formed in the same fracture surface, corresponding to the even pressure sleeve, of the wall of the to-be-measured pipeline, and an inner cavity of the even pressure sleeve is communicated with a to-be-measured fracture surface of the to-be-measured pipeline through the pressure taking holes. An exhaust vent with an exhaust valve is formed in the top plate of the even pressure sleeve, and a static pressure exporting hole is formed in the bottom plate of the even pressure sleeve. The even pressure sleeve for measurement of the static pressure of the pipeline fracture surface is reasonable and simple in structure, novel and exquisite in conception, and easy to achieve. Compared with a common pressure measurement device, reliability and accuracy of pipeline static pressure measurement are obviously improved. Due to the fact that the even pressure sleeve is made of the transparent materials, air exhaust conditions in the even pressure sleeve can be conveniently observed.
Description
Technical field
The present invention relates to a kind of flow characteristics measurement mechanism, relate in particular to the section static pressure measurement of pipeline in pumping unit, belong to the engineering fluid mechanics field of measuring technique.
Background technology
In pumping unit model pipeline system is carried out the work of hydraulic performance research, need the static pressure of measuring channel section, the accuracy of its measurement is very large on the result of study impact.Because the static pressure distribution of tested section is also inhomogeneous, be to improve the accuracy of measuring, traditional way is: 1 circular even pressure ring of being made by thin metal circular tube is set in the outside of tested section; Along 90 ° of the clear widths of this even pressure ring, 4 pressure pipes being set evenly is communicated with tested section; Offer again 1 static pressure leadout hole on this even pressure ring, and the static pressure of hole derivation thus is as the average static pressure of tested section.Because even pressure ring is elongated shape, apart from each other between each pressure port, a little less than even pressure effect, even pressure effect is relatively poor.Simultaneously, due to even pressure ring horizontal positioned, there is no peak, the air that even pressure ring contains is difficult to whole discharges.The problems referred to above cause the accuracy of conduit section static pressure measurement to be greatly affected.
Summary of the invention
Purpose of the present invention is exactly the defective for above-mentioned prior art, has designed a kind of even gland for the conduit section static pressure measurement, and even pressure effect is better, has improved the accuracy of measuring.
The object of the present invention is achieved like this, the even gland that is used for the conduit section static pressure measurement, it is characterized in that, be provided with outer panel, top board and the base plate of annular, consist of on the outer wall that described even gland is enclosed in tested pipeline by top board and the base plate of outer panel and annular, described outer panel is connected with the outer circumferential edge of top board and base plate, the internal circle of top board and base plate is close on the outer wall that is connected to tested pipeline, the tested pipeline wall of corresponding even gland is provided with equally distributed 8 pressure ports, and the inner chamber of even gland is communicated with the tested section of tested pipeline by pressure port; The top board of described even gland is provided with the vent port with vent valve, and the base plate of even gland is provided with the static pressure leadout hole that is connected with the tube of pressure-stabilizing of measuring static pressure.
On described tested pipeline wall, equally distributed 8 pressure ports are in the same section of tested pipeline.
The outer panel of described annular, top board and base plate are made by transparent material.
The present invention is rational in infrastructure simple, novel ingenious, is easy to realize.Compare with conventional pressure tester, reliability and accuracy that duct static pressure is measured are improved significantly.1 vent port and vent valve are set on the top board of even gland, in the bottom surface of even gland, the static pressure leadout hole are set, the vent valve of even gland end face (top board) can all be got rid of the gas in even gland, avoids the accuracy of gases affect static pressure measurement.Because even gland section is large and each pressure port is nearer apart, therefore the even pressure effect of section static pressure is improved greatly.Even gland adopts transparent material to make, and the gas of being convenient to observe in even gland is discharged situation.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is A-A sectional structure schematic diagram in Fig. 1.
Fig. 3 is the schematic diagram that the present invention is used for the conduit section static pressure measurement.
In figure: 1 water inlet flow channel, 2 tested pipelines, 3 even glands, 4 pressure ports, 5 vent valves, 6 static pressure leadout holes, 7 static pressure test tubes, 8 pressure taps, 9 tube of pressure-stabilizing, 10 steel rulers.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, be used for the even gland of conduit section static pressure measurement, be enclosed on the tested pipeline wall by the top board of outer panel and annular and base plate and consist of, the top board of annular and base plate and outer panel are made by transparent material.Outer panel is connected with the outer circumferential edge of top board and base plate, and the internal circle of top board and base plate is close to and is connected on the tested pipeline wall, and the tested pipeline wall of corresponding even gland is provided with equally distributed 8 pressure ports, and 8 pressure ports are in the same section of tested pipeline.The inner chamber of even gland is communicated with the tested section of tested pipeline by pressure port, vent port with vent valve is set on the top board of even gland, the static pressure leadout hole 6 that is connected with the tube of pressure-stabilizing of measuring static pressure is set on the base plate of even gland, be connected with pressure tap on tube of pressure-stabilizing by static pressure test tube 7, read static pressure from the steel ruler that is arranged on tube of pressure-stabilizing.
Claims (3)
1. even gland that is used for the conduit section static pressure measurement, it is characterized in that, be provided with top board and base plate and the outer panel of annular, described even gland is enclosed on the tested pipeline wall by the top board of annular and base plate and outer panel and consists of, described outer panel is connected with the outer circumferential edge of top board and base plate, the internal circle of top board and base plate is close to and is connected on the tested pipeline wall, the tested pipeline wall of corresponding even gland is provided with equally distributed 8 pressure ports, and the inner chamber of even gland is communicated with the tested section of tested pipeline by pressure port; The top board of described even gland is provided with the vent port with vent valve, and the base plate of even gland is provided with the static pressure leadout hole that is connected with the tube of pressure-stabilizing of measuring static pressure.
2. the even gland for the conduit section static pressure measurement according to claim 1, is characterized in that, on described tested pipeline wall, equally distributed 8 pressure ports are in the same section of tested pipeline.
3. the even gland for the conduit section static pressure measurement according to claim 1, is characterized in that, the outer panel of described annular, top board and base plate are made by transparent material.
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CN2013100431116A CN103148978A (en) | 2013-02-04 | 2013-02-04 | Even pressure sleeve for measurement of static pressure of pipeline fracture surface |
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CN2013100431116A CN103148978A (en) | 2013-02-04 | 2013-02-04 | Even pressure sleeve for measurement of static pressure of pipeline fracture surface |
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CN103148978A true CN103148978A (en) | 2013-06-12 |
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CN2013100431116A Pending CN103148978A (en) | 2013-02-04 | 2013-02-04 | Even pressure sleeve for measurement of static pressure of pipeline fracture surface |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103759884A (en) * | 2014-01-29 | 2014-04-30 | 中国商用飞机有限责任公司 | Device and method for measuring static pressure of high-speed fluid in high-pressure pipeline |
WO2018120747A1 (en) * | 2016-12-30 | 2018-07-05 | 北京金风科创风电设备有限公司 | Electrical connector, fluid state test device, and fluid heat exchange system |
CN108267261A (en) * | 2016-12-30 | 2018-07-10 | 北京金风科创风电设备有限公司 | Electrical connector, fluid state test device and fluid heat transfer system |
CN108267260A (en) * | 2016-12-30 | 2018-07-10 | 北京金风科创风电设备有限公司 | Electrical connector, fluid state test device and fluid heat transfer system |
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CN2354112Y (en) * | 1998-11-30 | 1999-12-15 | 邵朋诚 | Annular perforated-plate throttling device |
US6670761B1 (en) * | 1999-09-22 | 2003-12-30 | Lg Electronics Inc. | Magnetron having straps of different materials to enhance structural stability |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103759884A (en) * | 2014-01-29 | 2014-04-30 | 中国商用飞机有限责任公司 | Device and method for measuring static pressure of high-speed fluid in high-pressure pipeline |
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WO2018120747A1 (en) * | 2016-12-30 | 2018-07-05 | 北京金风科创风电设备有限公司 | Electrical connector, fluid state test device, and fluid heat exchange system |
CN108267261A (en) * | 2016-12-30 | 2018-07-10 | 北京金风科创风电设备有限公司 | Electrical connector, fluid state test device and fluid heat transfer system |
CN108267260A (en) * | 2016-12-30 | 2018-07-10 | 北京金风科创风电设备有限公司 | Electrical connector, fluid state test device and fluid heat transfer system |
CN108267260B (en) * | 2016-12-30 | 2019-05-17 | 北京金风科创风电设备有限公司 | Electrical connector, fluid state test device and fluid heat transfer system |
CN108267261B (en) * | 2016-12-30 | 2019-12-13 | 北京金风科创风电设备有限公司 | Electric connector, fluid state testing device and fluid heat exchange system |
US10641786B2 (en) | 2016-12-30 | 2020-05-05 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Fluid test device with electrical connector having electric heating tube for heat exchange process |
US11421916B2 (en) | 2016-12-30 | 2022-08-23 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Electrical connector, fluid state test device and fluid heat exchange system |
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Application publication date: 20130612 |