CN202372299U - Pressure detector - Google Patents
Pressure detector Download PDFInfo
- Publication number
- CN202372299U CN202372299U CN 201120493023 CN201120493023U CN202372299U CN 202372299 U CN202372299 U CN 202372299U CN 201120493023 CN201120493023 CN 201120493023 CN 201120493023 U CN201120493023 U CN 201120493023U CN 202372299 U CN202372299 U CN 202372299U
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- pressure
- probe
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- measuring probe
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Abstract
The utility model relates to a pressure detector which comprises at least one pressure detecting probe, an external connecting part correspondingly connected with the pressure detecting probes, and a pressure transmitter connected with the external connecting part. The pressure detector is characterized in that if the pressure detecting probes are mutually arranged at intervals, the end faces of probe pipe openings of the pressure detecting probes are aligned with one another up and down to be arranged on the same straight line, and the straight line is perpendicular to the airflow direction of gas to be detected. The external connecting part comprises at least one hose joint sleeve provided with through holes, the pressure detecting probes are fixed in the through holes of the hose joint sleeves, the hose joint sleeves are fixed in a joint installing disc, the pressure detector is compact in whole structure, and the joint installing disc has the shape of a fan-shaped ring, so that due to the structure, the pressure detector is light in weight, delicate in appearance, attractive in appearance, and convenient for batch production. Meanwhile, due to the structure that the pressure detecting probes are arranged with one another at intervals, the total pressure which is perpendicular to the different positions on some cross section of the airflow can be measured at the same time, so that the mean total pressure of the cross section can be exactly measured.
Description
Technical field
The utility model relates to the PMU field, especially, relates to a kind of PMU that is installed on pipeline or the equipment.
Background technology
In the use of pipeline and equipment, the user usually need monitor and utilizes the pressure at diverse location place in pipeline or the equipment.According to the regularity of distribution of stream pressure in pipeline or equipment, need getting a pressure measurement perpendicular to the many places in the cross section of air-flow.Existing PMU mainly contains two kinds: one, the average stagnation pressure of a certain section of measuring vertical airflow direction; Its principle is: pressure instrumentataion perpendicular to the direction of tested air-flow on offer many apertures according to the pressure measurement standard; The forced draft of gathering from different aperture pools one air-flow and is sent to pressure transducer; What this kind method was measured is average stagnation pressure, and can't measure in pipeline or the equipment stagnation pressure perpendicular to the diverse location place, a certain cross section of air-flow accurately.Two, perforate on equipment or pipeline directly is connected with measuring cell after the perforate, is the static pressure at this place but this kind method measures, rather than the dynamic pressure of air-flow in operational process.
The utility model content
The utility model purpose is to provide a kind of PMU that can accurately measure a certain stagnation pressure perpendicular to flow area diverse location place, to solve the technical matters of the PMU that can't accurately measure a certain stagnation pressure perpendicular to flow area difference place.
For realizing above-mentioned purpose; An aspect according to the utility model provides a kind of PMU, comprises that at least one pressure-measuring probe, corresponding external of connecting with pressure-measuring probe reach and external pressure unit that is connected; It is characterized in that; The arrangement of some pressure-measuring probes space, and the end face consistency from top to bottom of the probe mouth of pipe of each pressure-measuring probe to be to be arranged on same the straight line, and this straight line is vertical with the airflow direction of gas to be measured.
Further, external comprises at least one hose adapter cover, and each hose adapter is arranged with through hole, and pressure-measuring probe is fixed in the through hole of hose adapter cover, and the hose adapter cover is connected with pressure unit.
Further, external also comprises the joint mounting disc, and hose adapter cover peace is solid in the through hole of joint mounting disc, and pressure-measuring probe passes the through hole that is fixed on the hose adapter cover behind the through hole of joint mounting disc.
Further, also comprise transition part, second end of transition part is fixed in the joint mounting disc, and transition part is provided with and is convenient to the through hole that pressure-measuring probe passes.
Further, also comprise a probe mount pad, first end of transition part is fixed on the probe mount pad, and the probe mount pad is provided with and is convenient to the shoulder hole that pressure-measuring probe passes through.
Further; The probe mount pad comprises T-socket and the protruding tube that extends upward out along T-socket; Greater than in the aperture of T-socket part, first end of transition part is fixed in the shoulder hole and is positioned at the same side of T-socket together with protruding tube shoulder hole in the aperture of protruding tube part.
Further, a side that deviates from protruding tube of T-socket the junction of end face and some pressure-measuring probes seal.
Further, also be provided with on the both wings of T-socket and be convenient to the solid mounting hole on pipeline or equipment of PMU peace.
Further, the diameter of the probe mouth of pipe of each pressure-measuring probe is D1.2 * 0.25.
The utlity model has following beneficial effect: a plurality of pressure-measuring probes stagnation pressure at measuring vertical diverse location place on a certain cross section of air-flow simultaneously is set at interval, so that accurately measure the average stagnation pressure in this cross section; A plurality of hose adapter covers corresponding with these pressure-measuring probes are installed in the joint mounting disc, compact overall structure, and be set to fan-shaped ring-type in the joint mounting disc, this kind structure not only weight is light, and delicate appearance, has aesthetic feeling, is convenient to produce in batches.
Except top described purpose, feature and advantage, the utility model also has other purpose, feature and advantage.To do further detailed explanation to the utility model with reference to figure below.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the schematic top plan view of the PMU of the utility model preferred embodiment; And
Fig. 2 is the schematic side view of the PMU of the utility model preferred embodiment.
Embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Referring to Fig. 1 and Fig. 2, the PMU of the utility model is installed on pipeline or the equipment, can be used for accurately measuring a certain stagnation pressure perpendicular to flow area diverse location place in pipeline or the equipment.Can calculate the average stagnation pressure in this cross section accurately through the stagnation pressure at this diverse location place, cross section.The stagnation pressure here is static pressure and dynamic pressure sum.
The PMU of the utility model comprises at least one pressure-measuring probe 1, adapt with pressure-measuring probe 1 external 2, probe mount pad 3 and transition part 4.Pressure-measuring probe 1 is prepared by stainless-steel tube.Pressure-measuring probe 1 peace is solid in probe mount pad 3, and is connected with external 2 through transition part 4, and is last, external 2 external pressure unit.
See Fig. 2 for details, each external 2 joint mounting disc 21 that comprises the solid hose adapter cover 20 of hose adapter cover 20, peace that is sheathed on the corresponding pressure-measuring probe 1.First end of joint mounting disc 21 is set on second end of transition part 4, and welds.Joint mounting disc 21 is provided with the through hole with pressure-measuring probe 1 respective numbers, and hose adapter cover 20 is interference fitted in the through hole of joint mounting disc 21.In the hose adapter cover 20 through hole that adapts with pressure-measuring probe 1 is arranged.Preferably, joint mounting disc 21 is set to fan-shaped ring-type, and this kind structure not only weight is light, and delicate appearance, has aesthetic feeling, is convenient to produce in batches.
Status of equipment according to the size of carrying the gas caliber and the situation of air current flow etc.; A plurality of pressure-measuring probes 1 are set in the PMU of the utility model simultaneously at interval overlap 20 with these pressure-measuring probe 1 corresponding hose adapters, so that the general pressure at while measuring vertical diverse location place on a certain cross section of air-flow with a plurality of.Be arranged in pipeline or the equipment to these pressure-measuring probe 1 parallel interval, and the end face consistency from top to bottom of the mouth of pipe of these pressure-measuring probes 1 to be being arranged on same the straight line, and this straight line is vertical with airflow direction in pipeline or the equipment.After these pressure-measuring probes 1 pass the through hole 41 of shoulder hole 31 and transition part 4 of probe mount pad 3 successively, pass again be fixed on behind external 2 the corresponding through hole of joint mounting disc 21 external 2 the correspondence of hose adapter cover 20 logical in.
When measuring, the PMU of the utility model is fixed on pipeline or the equipment through probe mount pad 3, and hose adapter cover 20 is connected on the pressure unit.At this moment; Each pressure-measuring probe 1 extend in pipeline or the equipment; And the plane at pressure-measuring probe 1 place is the cross section perpendicular to airflow direction of pipeline or equipment; Through adjustment pressure-measuring probe 1, so that the stainless steel mouth of pipe of pressure-measuring probe 1 head-on is arranged on the direction of parallel alignment gas flow to be measured, what each pressure-measuring probe 1 was measured like this promptly is a certain stagnation pressure perpendicular to flow area diverse location place.The gas free-stream flow is when each pressure-measuring probe 1; Air-flow flows into respectively in each pressure-measuring probe 1; Be sent in the pressure unit through hose adapter cover 20 air-flows again and be correspondingly processed collection; The physical parameters such as pressure of air-flow are transformed into electric signal and show the most at last, the pressure at difference place in pipeline or the equipment is monitored and utilized for the user, especially can come to calculate accurately the average stagnation pressure of measured section through the stagnation pressure of measuring each point accurately.In the detection process that carries out air-flow; The size of the caliber of pressure-measuring probe 1 is accurately influential to pressure measurement: if the caliber size of pressure-measuring probe 1 is bigger; When measuring; The caliber of pressure-measuring probe 1 is corresponding bigger in occupation of the area in gas to be measured cross section, thereby has reduced the total flow of air-flow through this cross section, and bigger deviation can appear in the pressure that causes pressure-measuring probe 1 to be measured coming out and the pressure of actual distribution.Thereby under perfect condition, the size of pressure-measuring probe 1 is more little good more, its mouth of pipe sectional area even preferably little to negligible degree, and at this moment, its gaging pressure and actual distribution pressure will be infinitely approaching.But in the measurement of reality, the air-flow that forms in the gas operational process can apply certain external force to pressure-measuring probe 1, if pressure-measuring probe 1 is undersized, then pressure-measuring probe 1 is prone to phenomenons such as swing or shake in air-flow, occur, can badly influence the precision of measurement.Preferably, pressure-measuring probe 1 is by the stainless-steel tube preparation of D1.2 * 0.25, and the pressure-measuring probe 1 of this moderate size size can not only satisfy request for utilization, and processing cost is low.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (9)
1. PMU; External (2) comprising at least one pressure-measuring probe (1), corresponding connection with said pressure-measuring probe (1) reach and said external the pressure unit that (2) are connected; It is characterized in that; The arrangement of said some pressure-measuring probes (1) space, and the end face consistency from top to bottom of the probe mouth of pipe of each described pressure-measuring probe (1) is to be arranged on same the straight line; Said straight line is vertical with the airflow direction of said gas to be measured.
2. PMU according to claim 1; It is characterized in that; Said external (2) comprise at least one hose adapter cover (20); Each said hose adapter cover (20) is provided with through hole, and said pressure-measuring probe (1) is fixed in the through hole of said hose adapter cover (20), and said hose adapter cover (20) is connected with said pressure unit.
3. PMU according to claim 2; It is characterized in that; Said external (2) also comprise joint mounting disc (21); Said hose adapter cover (20) peace is solid in the through hole of said joint mounting disc (21), and said pressure-measuring probe (1) passes the through hole that is fixed on said hose adapter cover (20) behind the through hole of said joint mounting disc (21).
4. PMU according to claim 3 is characterized in that, also comprises transition part (4), and second end of transition part (4) is fixed in said joint mounting disc (21), and said transition part is provided with and is convenient to the through hole that said pressure-measuring probe (1) passes.
5. PMU according to claim 4; It is characterized in that; Also comprise a probe mount pad, first end of said transition part (4) is fixed on said probe mount pad, and said probe mount pad (3) is provided with and is convenient to the shoulder hole (31) that said pressure-measuring probe (1) passes through.
6. PMU according to claim 5; It is characterized in that; Said probe mount pad comprises T-socket (32) and the protruding tube (33) that extends upward out along said T-socket (32); Greater than in the aperture of said T-socket (32) part, first end of said transition part (4) is fixed in the said shoulder hole (31) and is positioned at the same sides of said T-socket (32) together with said protruding tube (33) said shoulder hole (31) in aperture of said protruding tube (33) part.
7. PMU according to claim 6 is characterized in that, a side that deviates from said protruding tube (33) of said T-socket (32) the junction sealing of end face (34) and said some pressure-measuring probes (1).
8. PMU according to claim 6 is characterized in that, also is provided with on the both wings of said T-socket (32) to be convenient to the solid mounting hole (35) on pipeline or equipment of said PMU peace.
9. PMU according to claim 1 is characterized in that, the diameter of the probe mouth of pipe of each said pressure-measuring probe (1) is D1.2 * 0.25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120493023 CN202372299U (en) | 2011-12-01 | 2011-12-01 | Pressure detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120493023 CN202372299U (en) | 2011-12-01 | 2011-12-01 | Pressure detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202372299U true CN202372299U (en) | 2012-08-08 |
Family
ID=46595996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120493023 Expired - Fee Related CN202372299U (en) | 2011-12-01 | 2011-12-01 | Pressure detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202372299U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280183A (en) * | 2014-09-29 | 2015-01-14 | 南京航空航天大学 | Flow collection type comb-shaped total pressure probe |
| CN105258724A (en) * | 2015-09-30 | 2016-01-20 | 中国航空工业集团公司沈阳发动机设计研究所 | Composite armored sensor and manufacturing method thereof |
| CN106768598A (en) * | 2017-03-10 | 2017-05-31 | 北京航空航天大学 | It is a kind of measure blade arrange between stagnation pressure along leaf distribution high the porous total pressure probe of cylinder |
| CN111120990A (en) * | 2020-01-09 | 2020-05-08 | 张化机（苏州）重装有限公司 | Pressure measuring port structure |
| CN114136531A (en) * | 2021-11-26 | 2022-03-04 | 辽宁科技大学 | Multifunctional aviation pipeline detection device |
-
2011
- 2011-12-01 CN CN 201120493023 patent/CN202372299U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280183A (en) * | 2014-09-29 | 2015-01-14 | 南京航空航天大学 | Flow collection type comb-shaped total pressure probe |
| CN105258724A (en) * | 2015-09-30 | 2016-01-20 | 中国航空工业集团公司沈阳发动机设计研究所 | Composite armored sensor and manufacturing method thereof |
| CN105258724B (en) * | 2015-09-30 | 2018-07-13 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of production method of compound armouring sensor |
| CN106768598A (en) * | 2017-03-10 | 2017-05-31 | 北京航空航天大学 | It is a kind of measure blade arrange between stagnation pressure along leaf distribution high the porous total pressure probe of cylinder |
| CN111120990A (en) * | 2020-01-09 | 2020-05-08 | 张化机（苏州）重装有限公司 | Pressure measuring port structure |
| CN114136531A (en) * | 2021-11-26 | 2022-03-04 | 辽宁科技大学 | Multifunctional aviation pipeline detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20171201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |