CN2697624Y - Penetrating type flame temp sensor - Google Patents
Penetrating type flame temp sensor Download PDFInfo
- Publication number
- CN2697624Y CN2697624Y CN 200420041475 CN200420041475U CN2697624Y CN 2697624 Y CN2697624 Y CN 2697624Y CN 200420041475 CN200420041475 CN 200420041475 CN 200420041475 U CN200420041475 U CN 200420041475U CN 2697624 Y CN2697624 Y CN 2697624Y
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- guide pole
- micro
- sensor
- eyeglass
- utility
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Abstract
A flame temp sensor is a penetrating type sensor which can measure the flame temp movably, and the utility model is manufactured according to the principle of the optical dichromatism method, comprising a sensing device 1, a guiding device 2 and a micro-regulating mechanism 3. Wherein, the sensing device 2 is connected with the micro-regulating mechanism 3 by the guiding device 1. The micro-regulating mechanism 3 can make the sensor moved along the normal direction of the wall surface. A sapphire window which is arranged on the front end of the sensor can isolate the heat convection, and the light illuminates on optical fibres 9 in a guiding rod 4 penetrating through the sapphire window. Optical signals are formed, and the optical signals are converted into electrical signals through a measuring system. The purpose of measuring the flame temps on the normal different position points along the wall is reached finally. The utility model has the characteristics of modern design, simple structure and convenient utility. The penetrating type flame temp sensor can be applied to measure the flame temps on the different position points along the normal direction of the wall surface.
Description
Technical field
The utility model relates to a kind of sensor, especially a kind of traversing type of combustion flame sensor that is used to measure cylinder and other heating power container flame temperatures.
Background technology
Heat transfer in the cylinder is an importance in internal combustion engine development and the research, so far it is gone back the complete understanding clearly of neither one, the interior heat transfer phenomenon of some cylinders also can't be set forth clear, and this mainly is the heat transfer that does not relate to during the conventional interior heat transfer of cylinder is studied in the inside wall of cylinder face boundary layer.But the heat transfer in the boundary layer but plays crucial influence to conducting heat in the cylinder.
In having now to the heat transfer measuring technique in the cylinder, for the report of flame temperature measurement aspect seldom, only data shows that in the existing abroad survey sensor, surface thermocouple (as: sensor that the MEDTHEM of the U.S. produces) can be measured transient temperature; Penetration type thermopair (as: Britain Ricardo company produce sensor) can be measured temperature movably, but their energy measurement flame temperatures not; Existing Fibre Optical Sensor can be measured flame temperature, but but can not measure movably.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that above survey sensor occurs in carrying out temperature survey, design a kind of sensor that not only can move but also can carry out flame temperature measurement, promptly can measure in the cylinder or the traversing type of combustion flame sensor of the flame temperature in other heating power containers.
In order to reach this purpose, the utility model has selected to utilize optics two color method principles to make Fibre Optical Sensor, the fiber sensor measuring technology is fairly simple, use more convenient, and it does not lag behind when measuring flame temperature, can make things convenient for, compactly by measuring the flame temperature of cylinder along wall normal orientation diverse location place.
The purpose of this utility model is achieved by the following technical programs: the utility model includes sensing device and micro-adjusting mechanism, and wherein sensing device includes optical fiber; One of its characteristics are that the movable scale of micro-adjusting mechanism is sleeved on the nonadjustable signal, and clearance fit with it, and nut places the top of movable scale, communicates with the hole of movable scale; Another characteristics of the present utility model are that this sensor also includes guide piece, guide piece is made up of guide pole and abutment sleeve, the upper end of guide pole and micro-adjusting mechanism are fixed together by nut and movable scale, the stage casing of guide pole links together by screw thread and nonadjustable signal, and abutment sleeve links to each other by screw thread with nonadjustable signal; Sensing device also comprises eyeglass, fastening nut and pad, and fastening nut will be contained in the pad of guide pole bottom and eyeglass is fixed on guide pole by screw thread lower end; Having a Kong Bingyu guide pole less than eyeglass in the bottom of fastening nut communicates; Optical fiber is concordant with the lower end of guide pole and stretch out from the upper end of guide pole, and its extension is divided into two strands equably; Eyeglass is sapphire eyeglass or the good eyeglass of other light transmission.
When sensor is worked in engine cylinder, can be sent to outside the cylinder in order to make light signal, used hollow guide pole, optical fiber can be introduced to outside the cylinder by guide pole.In measurement to cylinder of diesel engine internal combustion flame temperature, the utility model has used micro-adjusting mechanism, the movable scale of this micro-adjusting mechanism tightens together by nut and guide pole, and nonadjustable signal is connected with abutment sleeve by screw thread, and nonadjustable signal inside and guide pole are with being threaded simultaneously; When the rotary moveable scale, guide pole moves along its axial direction, drives sensor simultaneously and moves along the wall normal orientation.
The utility model can be measured in cylinder and other heating power containers nearly solid wall surface easily along the flame temperature at wall normal orientation diverse location place, its have simple in structure, easy to use, not have hysteresis, characteristics that accuracy of measurement is high.
Description of drawings
Fig. 1 is a whole mechanism map of the present utility model;
Fig. 2 is the inner structure cut-open view of sensing device 1 of the present utility model;
Fig. 3 is the inner structure cut-open view of the guide pole 4 of guide piece 2 of the present utility model;
Fig. 4 is the inner structure cut-open view of the abutment sleeve 5 of guide piece 2 of the present utility model;
Fig. 5 is the internal view of micro-adjusting mechanism 3 of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in more detail.
Referring to Fig. 1, the utility model includes sensing device 1, guide piece 2 and micro-adjusting mechanism 3 three parts; The lower end of the upper end of sensing device 1 and guide piece 2 is by being threaded, the upper end of guide pole 4 tightens together by the movable scale 7 of nut 8 and micro-adjusting mechanism 3, one end of abutment sleeve 5 is connected by the nonadjustable signal 6 of screw thread and micro-adjusting mechanism 3, the other end is connected with measured parts by screw thread, and optical fiber 9 is contained in the guide pole 4 and by guide pole 4 and draws.
Referring to Fig. 2, heat transfer at the engine gas in the jar is very complicated, existing convection heat transfer, radiation heat transfer is arranged again, wherein radiation comprises gas radiation and Fire Radiation again, for isolated convection heat transfer, the utility model has added sapphire eyeglass 11 at the front end of guide pole 4, because sapphire eyeglass transmitted light well; Optical fiber 9 in the middle of the guide pole 4 sticks on the inside of guide pole 4 by high-temp glue, at the exit of optical fiber 9, optical fiber 9 is divided into two strands equably, plays the effect of beam split well.The fastening nut 10 of sensing device 1 front end is connected with pad 12 sapphire eyeglass 11 with guide pole 4; The bottom of fastening nut 10 has a hole less than sapphire eyeglass 11 and forms a window, and this window can completely cut off convection heat transfer, and the light transmission sapphire window is radiated on the optical fiber 9 in the guide pole 4, forms light signal, is converted to electric signal by measuring system again.
Referring to Fig. 3, the guide pole 4 of the utility model targeting part 2 is a hollow metal material round bar, its upper end is processed with boss and screw thread, can tighten together by the movable scale 7 of nut 8 with micro-adjusting mechanism 3, its lower end also is processed with boss and screw thread, can tighten together with metal fastening nut 10, the middle and upper part of guide pole 4 is processed with screw thread and can links together with the nonadjustable signal 6 of micro-adjusting mechanism 3.
Referring to Fig. 4, the abutment sleeve 5 of guide piece 2 of the present utility model is metal material hollow cylinders, its inner upper end and lower end all are processed with screw thread, and the upper end can be connected by the nonadjustable signal 6 of screw thread and micro-adjusting mechanism 3, and the lower end can be connected with measured parts by screw thread.
Referring to Fig. 5, micro-adjusting mechanism 3 is made up of nonadjustable signal 6, movable scale 7 and nut 8.Nonadjustable signal 6 is metal material hollow cylinders, inwall at nonadjustable signal 6 is processed with screw thread, can with the threaded engagement on guide pole 4 tops of guide piece 2, the lower end of nonadjustable signal 6 is processed with boss and screw thread, tighten together with abutment sleeve 5 in use, movable scale 7 is sleeved on nonadjustable signal 6, cooperation between them is a clearance fit, the top of movable scale 7 by nut 8 and guide pole 4 tops boss and be threaded togather, movable scale 7 and guide pole 4 and nut 8 are tightened together.
The course of work of the present utility model is: the utility model is inserted cylinder cap from the engine cylinder cap outside, the front end face of sensing device 1 is in the interior near wall fluid layer of engine cylinder, output terminal with optical fiber 9 is divided into two bifurcateds then, receives the input end of data collecting instrument respectively through interference filter, photomultiplier; During the engine operation, the light of in-cylinder combustion flame incides on the incident end of optical fiber 9 through the sapphire eyeglass 11 of sensor 9, the other end from optical fiber 9 after total reflection penetrates, enter photomultiplier through interference filter, be converted to voltage signal, this signal utilizes data collecting instrument collection and demonstration.Owing to adopting optical principle, this sensor response is very fast, does not have hysteresis substantially, and therefore output is a transient signal that does not have hysteresis.When measuring the signal of a position, the movable scale 7 of rotary fine adjustment mechanism 3 can be regulated the position of sensing device 1, sensing device 1 is moved along the axis direction of sensing device 1, reach installation and once can gather and the purpose that measures different fluid layer flame temperatures.
The utility model is simple in structure, easy to use, do not lag behind when measuring flame temperature, can make things convenient for,, satisfied the requirement of two aspects: 1) compactly by measuring the flame temperature of cylinder along wall normal orientation diverse location place. can measure the flame temperature in the cylinder; 2). installation once can record along the flame temperature at wall diverse location place by the movable scale mobile sensor device of rotary fine adjustment mechanism.
Claims (4)
1, a kind of traversing type of combustion flame sensor, include sensing device (1) and micro-adjusting mechanism (3), wherein sensing device (1) comprises optical fiber (9), the movable scale (7) that it is characterized in that micro-adjusting mechanism (3) is sleeved on the nonadjustable signal (6), and clearance fit with it, nut (8) places the top of movable scale (7); This sensor also includes guide piece (2), guide piece (2) is made up of guide pole (4) and abutment sleeve (5), the upper end of guide pole (4) and micro-adjusting mechanism (3) are fixed together by nut (8) and movable scale (7), the stage casing of guide pole (4) links together by screw thread and nonadjustable signal (6), and abutment sleeve (5) links to each other by screw thread with nonadjustable signal (6); This sensing device (1) also comprises eyeglass (11), fastening nut (10) and pad (12), and fastening nut (10) will be contained in the pad (12) of guide pole (4) bottom and eyeglass (11) is fixed on guide pole (4) by screw thread lower end.
2, traversing type of combustion flame sensor according to claim 1 is characterized in that having a Kong Bingyu guide pole (4) less than eyeglass (11) in the bottom of fastening nut (10) communicates.
3, traversing type of combustion flame sensor according to claim 1 is characterized in that optical fiber (9) is concordant with the lower end of guide pole (4) and stretches out from the upper end of guide pole (4) that its extension is divided into two strands equably.
4, traversing type of combustion flame sensor according to claim 1 is characterized in that said eyeglass (11) is sapphire eyeglass or the good eyeglass of other light transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041475 CN2697624Y (en) | 2004-01-30 | 2004-01-30 | Penetrating type flame temp sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041475 CN2697624Y (en) | 2004-01-30 | 2004-01-30 | Penetrating type flame temp sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2697624Y true CN2697624Y (en) | 2005-05-04 |
Family
ID=34774599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420041475 Expired - Fee Related CN2697624Y (en) | 2004-01-30 | 2004-01-30 | Penetrating type flame temp sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2697624Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048750A (en) * | 2014-06-30 | 2014-09-17 | 四川天微电子有限责任公司 | Flame detection device |
| CN110836778A (en) * | 2019-10-14 | 2020-02-25 | 中国北方发动机研究所(天津) | Non-contact real-time measuring system for temperature in diesel engine cylinder |
-
2004
- 2004-01-30 CN CN 200420041475 patent/CN2697624Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048750A (en) * | 2014-06-30 | 2014-09-17 | 四川天微电子有限责任公司 | Flame detection device |
| CN110836778A (en) * | 2019-10-14 | 2020-02-25 | 中国北方发动机研究所(天津) | Non-contact real-time measuring system for temperature in diesel engine cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |