CN203572614U - Leading-out device for high-temperature high-pressure combustion gas pressure measurement - Google Patents
Leading-out device for high-temperature high-pressure combustion gas pressure measurement Download PDFInfo
- Publication number
- CN203572614U CN203572614U CN201320666706.2U CN201320666706U CN203572614U CN 203572614 U CN203572614 U CN 203572614U CN 201320666706 U CN201320666706 U CN 201320666706U CN 203572614 U CN203572614 U CN 203572614U
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- Prior art keywords
- pressure
- pressure measurement
- measuring
- fuel gas
- measurement
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- Expired - Lifetime
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- 238000009530 blood pressure measurement Methods 0.000 title claims abstract description 51
- 239000000567 combustion gas Substances 0.000 title abstract description 8
- 238000005259 measurement Methods 0.000 claims abstract description 15
- 239000002737 fuel gas Substances 0.000 claims description 26
- 238000010304 firing Methods 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 10
- 238000002347 injection Methods 0.000 abstract 3
- 239000007924 injection Substances 0.000 abstract 3
- 238000005507 spraying Methods 0.000 abstract 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002679 ablation Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Abstract
The utility model belongs to the technical field of high-temperature high-pressure combustion gas pressure measurement, and particularly to a leading-out device for high-temperature high-pressure combustion gas pressure measurement. The leading-out device comprises a pressure measuring bent pipe and a pressure measuring straight pipe, wherein the lower end of the pressure measuring straight pipe penetrates through a spraying injection panel and is communicated with a combustion chamber below the spraying injection panel. The straight pipe segment at the lower end of the pressure measuring bent pipe is hermetically fixed with the upper end of the pressure measuring straight pipe. The bent pipe segment at the upper end of the pressure measuring bent pipe extends out of a second bottom plate above the combustion chamber. Furthermore a measuring pipe nozzle is fixed at the position where the pressure measuring bent pipe extends out of the second bottom plate, wherein the lower end of the second bottom plate is hermetically fixed with the spraying injection panel. Communication between the combustion chamber and the measuring pipe nozzle is realized through the pressure measuring straight pipe and the pressure measuring bent pipe. According to the leading-out device for high-temperature high-pressure combustion gas pressure measurement provided by the utility model, a common pressure sensor can be adopted for accurately measuring steady-state chamber pressure of the high-temperature high-pressure combustion chamber. The leading-out device further has advantages of high safety and high reliability. Through comparing with the result which is acquired in a direct measuring manner, the relative error between the result acquired by the leading-out device and the result acquired in the direct measuring manner does not exceed +/-0.5%. High measurement accuracy is realized.
Description
Technical field
The utility model belongs to high-temperature high-pressure fuel gas pressure measurement technology field, is specifically related to a kind of high-temperature high-pressure fuel gas pressure survey ejector.
Background technology
Combustion technology is widely used in the power system of Aero-Space, automobile, boats and ships, and the various fields such as civil boiler, combustion furnace.Utilize the device of fuel and the burning of oxygenant tissue to be commonly referred to as firing chamber.Chamber pressure is whether measurement burning is abundant, the very important parameter whether characterization device is working properly, and therefore no matter in the product development stage, or the commencement of commercial operation stage of product, the equal tool of measurement of chamber pressure is of great significance.
Gas in firing chamber generally has the feature of high temperature, high pressure, as the fuel gas temperature in high thrust hydrogen-oxygen Liquid Rocket Engine Combustion Chambers can reach 3500K, pressure can surpass 12MPa, and so severe working environment has brought very large difficulty to the measurement of chamber pressure.The metering system of chamber pressure can be divided into two kinds conventionally, and a kind of is that pressure transducer is directly contained on firing chamber, and sensor directly contacts combustion gas and measures, another kind be after medium being drawn by piezometric tube again with the sensor measurement of joining.The first metering system is subject to the restriction of size sensor and product structure conventionally, more difficult realization, and easily cause ablation and the damage of sensor.If adopt the second metering system, need take measures to prevent the ablation of piezometric tube, prevent that some composition in combustion gas from stopping up piezometric tube as the compositions such as solid particle or water vapour freeze and causing measurement result distortion.Freeze and likely occur in the situation of the cryogenic propellant firing chambers such as hydrogen-oxygen, spray head cavity and Shen Budeng position, firing chamber are generally ultralow temperature, and when combustion gas being drawn by these positions, as easy as rolling off a log the freezing of water vapour in combustion gas causes piezometric tube to stop up.
Summary of the invention
The purpose of this utility model is to provide a kind of high-temperature high-pressure fuel gas pressure survey ejector, can accurately measure by common pressure transducer the steady state pressure of high temperature, high compression combustion chamber.
The technical solution of the utility model is as follows: a kind of high-temperature high-pressure fuel gas pressure survey ejector, and this ejector comprises pressure measurement bend pipe and pressure measurement straight tube, wherein, pressure measurement straight tube lower end, through spray panel, is communicated with the firing chamber that is positioned at spray panel below; The straight length of pressure measurement bend pipe lower end and the sealing of the upper end of pressure measurement straight tube are fixing, the bend loss of pressure measurement bend pipe upper end stretches out two ends that are positioned at top, firing chamber, and at pressure measurement bend pipe, stretch out the position at two ends and be fixed with measurement ozzle, wherein, under two, end is fixed with spray panel sealing, by pressure measurement straight tube and pressure measurement bend pipe, is realized firing chamber and is measured being communicated with of ozzle.
Between the two described ends and spray panel, be fuel gas chamber, described pressure measurement bend pipe and pressure measurement straight tube are arranged in fuel gas chamber.
Described pressure measurement bend pipe and pressure measurement straight tube internal diameter are 2mm.
On described measurement straight tube, have aperture.
On described measurement straight tube, have the aperture that two diameters are 0.3mm.
Described measurement ozzle is 60 ° of pressure inlets of standard, can conveniently be connected with standard pipe fitting and load cell.
Two described tops, the end are oxidant cavity.
Remarkable result of the present utility model is: a kind of high-temperature high-pressure fuel gas pressure survey ejector described in the utility model, can adopt common pressure transducer accurately to measure the stable state constant pressure of high temperature, high compression combustion chamber, this equipment safety is reliable, through comparing with the mode of direct measurement, the two relative error is no more than ± and 0.5%, measure accurately.
Accompanying drawing explanation
Fig. 1 is a kind of high-temperature high-pressure fuel gas pressure survey ejector structural representation described in the utility model;
In figure: 1, pressure measurement bend pipe; 2, pressure measurement straight tube; 3, spray panel; 4, two ends; 5, measure ozzle; 6, fuel gas chamber; 7, aperture; 8, firing chamber; 9, oxidant cavity.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of high-temperature high-pressure fuel gas pressure survey ejector, comprises pressure measurement bend pipe 1 and pressure measurement straight tube 2, and wherein, pressure measurement straight tube 2 lower ends, through spray panel 3, are connected with firing chamber 8, the upper end of pressure measurement straight tube 2 and pressure measurement bend pipe 1 lower end are welded and fixed, pressure measurement bend pipe 1 upper end bend loss stretches out two ends 4 that are positioned at 8 tops, firing chamber, and be fixed with and measure ozzle 5 in the position that pressure measurement bend pipe 1 stretched out for two ends 4, wherein, two lower end, the ends 4 and spray panel 3 are fixing, above two ends 4, it is oxidant cavity 9, between two ends 4 and spray panel 3, it is fuel gas chamber 6, by being arranged in pressure measurement straight tube 2 and the pressure measurement bend pipe 1 in fuel gas chamber 6, realizing firing chamber 8 and measure being communicated with of ozzle 5, wherein, measuring ozzle 5 is 60 ° of pressure inlets of standard, can conveniently be connected with standard pipe fitting and load cell, pressure measurement bend pipe 1 and pressure measurement straight tube 2 internal diameters are 2mm, and on the measurement straight tube 2 in fuel gas chamber 6, have the aperture 7 that two diameters are 0.3mm being arranged in, pressure reduction between fuel cavity 6 and firing chamber 8 is about firing chamber 8 pressure 20%, under the effect of pressure reduction, the fuel gas of small part can pass through aperture 7 and pressure measurement straight tube 4 flowing in combustion chambers 8 of two diameter 0.3mm, forms sealing gland effect.
The concrete assembling process of a kind of high-temperature high-pressure fuel gas pressure survey ejector described in the utility model is: pressure measurement bend pipe 1, pressure measurement straight tube 2 are welded into an integral body, pack the integral body after welding into two ends 4, then spray panel 3 is inserted in to pressure measurement straight tube 2, the flange riveted joint of pressure measurement straight tube 2 outlets is fixing, and the part that two ends 4 and pressure measurement bend pipe 1 are exposed is by being welded and fixed and sealing.Spray panel 3 and two ends 4, are welded and fixed.Finally pressure measurement ozzle 5 and two ends 4 are welded and fixed.
Claims (7)
1. a high-temperature high-pressure fuel gas pressure survey ejector, it is characterized in that: this ejector comprises pressure measurement bend pipe (1) and pressure measurement straight tube (2), wherein, pressure measurement straight tube (2) lower end, through spray panel (3), is communicated with the firing chamber (8) that is positioned at spray panel (3) below; The straight length of pressure measurement bend pipe (1) lower end and the sealing of the upper end of pressure measurement straight tube (2) are fixing, the bend loss of pressure measurement bend pipe (1) upper end stretches out two ends (4) that are positioned at top, firing chamber (8), and be fixed with and measure ozzle (5) in the position that pressure measurement bend pipe (1) stretches out two ends (4), wherein, (4) lower end, two ends and spray panel (3) sealing are fixing, by pressure measurement straight tube (2) and pressure measurement bend pipe (1), are realized firing chamber (8) and are measured being communicated with of ozzle (5).
2. a kind of high-temperature high-pressure fuel gas pressure survey ejector according to claim 1, it is characterized in that: between described two ends (4) and spray panel (3), be fuel gas chamber (6), described pressure measurement bend pipe (1) and pressure measurement straight tube (2) are arranged in fuel gas chamber (6).
3. a kind of high-temperature high-pressure fuel gas pressure survey ejector according to claim 1, is characterized in that: described pressure measurement bend pipe (1) and pressure measurement straight tube (2) internal diameter are 2mm.
4. according to a kind of high-temperature high-pressure fuel gas pressure survey ejector described in claim 1～3 any one, it is characterized in that: on described measurement straight tube (2), have aperture (7).
5. a kind of high-temperature high-pressure fuel gas pressure survey ejector according to claim 4, is characterized in that: on described measurement straight tube (2), have the aperture that two diameters are 0.3mm (7).
6. a kind of high-temperature high-pressure fuel gas pressure survey ejector according to claim 1, is characterized in that: described measurement ozzle (5) is 60 ° of pressure inlets of standard, can conveniently be connected with standard pipe fitting and load cell.
7. a kind of high-temperature high-pressure fuel gas pressure survey ejector according to claim 1, is characterized in that: described top, two ends (4) is oxidant cavity (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320666706.2U CN203572614U (en) | 2013-10-28 | 2013-10-28 | Leading-out device for high-temperature high-pressure combustion gas pressure measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320666706.2U CN203572614U (en) | 2013-10-28 | 2013-10-28 | Leading-out device for high-temperature high-pressure combustion gas pressure measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203572614U true CN203572614U (en) | 2014-04-30 |
Family
ID=50540341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320666706.2U Expired - Lifetime CN203572614U (en) | 2013-10-28 | 2013-10-28 | Leading-out device for high-temperature high-pressure combustion gas pressure measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203572614U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547578A (en) * | 2016-02-15 | 2016-05-04 | 中国船舶重工集团公司第七〇五研究所 | High-temperature fuel gas dynamic pressure guiding-out device with cooling water jacket |
| CN106762229A (en) * | 2016-11-04 | 2017-05-31 | 上海新力动力设备研究所 | A kind of dipulse missile propulsive plant anti-clogging pressure measurement structure |
| CN109443780A (en) * | 2018-10-21 | 2019-03-08 | 西安航天动力测控技术研究所 | A method of engine is detected by echo test method and inflates pressure |
-
2013
- 2013-10-28 CN CN201320666706.2U patent/CN203572614U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547578A (en) * | 2016-02-15 | 2016-05-04 | 中国船舶重工集团公司第七〇五研究所 | High-temperature fuel gas dynamic pressure guiding-out device with cooling water jacket |
| CN106762229A (en) * | 2016-11-04 | 2017-05-31 | 上海新力动力设备研究所 | A kind of dipulse missile propulsive plant anti-clogging pressure measurement structure |
| CN109443780A (en) * | 2018-10-21 | 2019-03-08 | 西安航天动力测控技术研究所 | A method of engine is detected by echo test method and inflates pressure |
| CN109443780B (en) * | 2018-10-21 | 2020-12-04 | 西安航天动力测控技术研究所 | Method for detecting engine inflation pressure through echo test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Jiguo Inventor after: Li Danlin Inventor after: Liu Hongzhen Inventor after: Yan Yong Inventor after: Wang Zhao Inventor after: Cheng Peng Inventor after: Xu Xiaoyong Inventor after: Gao Xiangyu Inventor after: Zhao Shihong Inventor after: Wang Weibin Inventor after: Qiao Guiyu Inventor after: Tao Ruifeng Inventor after: Tian Yuan Inventor after: Ding Zhaobo Inventor before: Sun Jiguo Inventor before: Xu Xiaoyong Inventor before: Gao Xiangyu |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SUN JIGUO XU XIAOYONG GAO XIANGYU TO: SUN JIGUO XU XIAOYONG GAO XIANGYU ZHAO SHIHONG WANG WEIBIN QIAO GUIYU TAO RUIFENG TIAN YUAN DING ZHAOBO LI DANLIN LIU HONGZHEN YAN YONG WANG ZHAO CHENG PENG |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |
|
| CX01 | Expiry of patent term |