CN113280365A - Ignition device of combustion chamber - Google Patents
Ignition device of combustion chamber Download PDFInfo
- Publication number
- CN113280365A CN113280365A CN202110637609.XA CN202110637609A CN113280365A CN 113280365 A CN113280365 A CN 113280365A CN 202110637609 A CN202110637609 A CN 202110637609A CN 113280365 A CN113280365 A CN 113280365A
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- ignition
- sliding rod
- insulating tube
- side wall
- Prior art date
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- Pending
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 65
- 239000012212 insulator Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000010304 firing Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q3/00—Igniters using electrically-produced sparks
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Spark Plugs (AREA)
Abstract
The invention relates to a combustion chamber ignition device which comprises a combustion chamber cavity, an insulating tube and an igniter, wherein the igniter comprises an ignition end and a sliding rod, the insulating tube is sleeved on the middle section of the sliding rod, one end of the insulating tube is fixed on the side wall of the combustion chamber cavity, the ignition end positioned at the end part of the sliding rod is positioned in the combustion chamber cavity, the inner side of the side wall of the combustion chamber cavity is provided with a tabling groove matched with the shape of the ignition end, and when the sliding rod moves outwards along the insulating tube, the ignition end is embedded into the tabling groove. Compared with the prior art, the invention realizes ignition through the discharge between the ignition end and the side wall; after the ignition is finished, the ignition end is embedded into the embedded groove of the side wall, so that the igniter can be well protected, the service life of the igniter is prolonged, the ignition end can not interfere a flow field, and the experimental shooting of a combustion chamber is avoided.
Description
Technical Field
The invention relates to the field of igniters, in particular to an ignition device of a combustion chamber.
Background
In response to the ignition problem of the combustion chamber, the prior art generally installs an igniter in the combustion chamber, the igniter having two electrodes, and the energy is generated by the discharge between the electrodes to ignite the combustible in the combustion chamber. However, in the process, the electrode of the igniter is exposed in the combustion chamber for a long time, and the electrode is worn and scrapped for a long time; in addition, aiming at a combustion chamber in a laboratory, the electrode in the cavity of the combustion chamber can influence the stability of a flow field, and can emit very bright light to seriously influence the self-luminous shooting of flame, so that the market needs an automatic ignition device which has no interference to the combustion chamber.
Disclosure of Invention
It is an object of the present invention to overcome the above-mentioned deficiencies of the prior art by providing a combustion chamber ignition device.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a combustion chamber ignition, includes combustion chamber cavity, insulating tube and some firearm, some firearm includes ignition end and slide bar, insulating tube overlaps the middle section at the slide bar to the one end of insulating tube is fixed on the lateral wall of combustion chamber cavity, makes the ignition end that is located the slide bar tip be located the combustion chamber cavity, the lateral wall inboard of combustion chamber cavity is equipped with the gomphosis groove with ignition end shape adaptation, when the slide bar outwards removed along the insulating tube, in the embedding gomphosis groove of ignition end.
Further, the end face of the ignition end far away from the sliding rod and the inner side face of the side wall of the combustion chamber cavity form a coplanar surface.
Further, the edge side of the ignition end is provided with a sharp-angled convex edge facing the side wall.
Furthermore, the outer ring of the sliding rod is provided with a tail clamping sleeve and a head clamping sleeve, the tail clamping sleeve is fixed at the tail end of the sliding rod, and the head clamping sleeve is fixed at the joint of the ignition end and the sliding rod.
Furthermore, the tail clamping sleeve is provided with a tail taper angle facing the insulating tube, and the head clamping sleeve is provided with a head taper angle facing the insulating tube.
Further, the tail clamping sleeve and the head clamping sleeve are made of copper.
Furthermore, the edges of the inner rings at the two ends of the insulating tube are provided with inner chamfer angles.
Further, the insulating tube is a ceramic tube.
The side wall of the combustion chamber cavity is connected with a negative electrode of the high-voltage power supply, and the igniter is connected with a positive electrode of the high-voltage power supply.
The combustion chamber is characterized by further comprising a control system, wherein the control system comprises a driving module, a controller and a thermocouple, the thermocouple is installed on the side wall of the combustion chamber cavity, the driving module is connected with a sliding rod, the sliding rod is driven to move back and forth in the insulating sleeve, and the controller is connected with the thermocouple, the driving module and a high-voltage power supply.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention is provided with the igniter which can move in the insulating tube, and the ignition is realized through the discharge between the ignition end and the side wall; after the ignition is finished, the ignition end is embedded into the embedded groove of the side wall, so that the igniter can be well protected, the service life of the igniter is prolonged, the ignition end can not interfere a flow field, and the experimental shooting of a combustion chamber is avoided.
2. In the invention, sharp-angled convex edges are arranged on the edge sides of the ignition end; when the ignition end is away from the side wall of the combustion chamber by a certain distance, the sharp-angled convex edge and the edge of the embedding groove are easy to discharge, and the ignition efficiency of the igniter is improved. Meanwhile, the structure can improve the tightness of the embedding of the ignition end and the embedding groove.
3. Set up afterbody cutting ferrule and head cutting ferrule at the both ends of some firearm slide bar, when some firearm removed to the both ends of insulator spindle, formed seal structure, improved the security of combustion chamber.
4. The invention also comprises a control system, which realizes the full-automatic ignition and control of the igniter and is convenient to operate and use.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the control system.
Fig. 3 is a schematic view of the mounting structure of the tail ferrule.
Fig. 4 is a schematic view of the mounting structure of the head ferrule.
Reference numerals: 1. the ignition device comprises a combustion chamber cavity, 11, side walls, 12, an embedded groove, 2, an insulating tube, 21, an inner chamfer, 3, an igniter, 31, an ignition end, 31a, a sharp-angled convex edge, 32, a sliding rod, 4, a tail clamping sleeve, 41, a tail cone angle, 5, a head clamping sleeve, 51, a head cone angle, 6, a high-voltage power supply, 7, a control system, 71, a driving module, 72, a controller, 73 and a thermocouple.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, the present embodiment provides a combustion chamber ignition device including a combustion chamber cavity 1, an insulating tube 2, and an igniter 3. The igniter 3 includes an ignition end 31 and a sliding rod 32 connected to each other; the insulating tube 2 is fitted over the middle section of the sliding rod 32, and one end of the insulating tube 2 is vertically fixed to the side wall 11 of the combustion chamber body 1, thereby making the firing end 31 at the end of the sliding rod 32 in the combustion chamber body 1. The inner side of the side wall 11 of the combustion chamber 1 is provided with a fitting groove 12 having a shape matching the ignition end 31, and when the sliding rod 32 moves outward or inward along the insulating tube 2, the ignition end 31 is fitted into the fitting groove 12 or separated from the fitting groove 12 by a distance from the side wall 11 of the combustion chamber. In this embodiment, an external high voltage power supply 6 is provided, and the negative electrode of the high voltage power supply 6 is connected to the side wall 11 of the combustion chamber cavity 1 and the positive electrode is connected to the sliding rod 32 of the igniter 3. Therefore, when the ignition tip 31 is distanced from the combustion chamber side wall 11 and energized, the side wall 11 and the ignition tip 31 form an electric discharge to be able to ignite the gas inside the combustion chamber.
As shown in fig. 2, the present embodiment further includes a control system 7 for implementing an auto-ignition function. The control system 7 includes a drive module 71, a controller 72, and a thermocouple 73. A thermocouple 73 is mounted on the side wall 11 of the combustion chamber housing 1 for monitoring the temperature within the combustion chamber; the driving module 71 adopts the existing mechanical driving structure, is used for driving the sliding rod 32 of the igniter 3 to stretch, and can be an air cylinder, a motor, a screw rod structure and the like, and is not limited specifically; the controller 72 is a conventional computer or intelligent device, and the controller 72 is connected with the thermocouple 73, the driving module 71 and the high-voltage power supply 6, and the specific control process is as follows:
when in ignition, a certain distance is reserved between the ignition end 31 and the side wall 11 of the combustion chamber cavity 1, the high-voltage power supply 6 is controlled to start, and at the moment, combustion gas is introduced into the combustion chamber. The ignition end 31 and the side wall 11 of the combustion chamber generate electric spark to ignite gas, so that ignition is realized.
After ignition, the temperature in the combustion chamber rises, and the thermocouple 73 detects a high temperature signal, feeds the high temperature signal back to the controller 72, controls the high voltage power supply 6 to stop discharging, and gives a reverse signal to the driving module 71. The firing end 31 moves toward the side wall 11 until it comes into contact with the fitting groove 12. This step protects the ignition end 31 and prevents it from affecting the flame flow field and interfering with the experimental shooting.
In this embodiment, the end surface of the ignition end 31 far from the sliding rod 32 and the inner side of the side wall 11 of the combustion chamber cavity 1 form a coplanar surface, so that the influence of the ignition end 31 on the flame flow field in the combustion chamber is minimized. The edge side of the ignition end 31 is provided with a sharp-angled convex edge 31a facing the sliding rod 32, so that point discharge is facilitated, the ignition efficiency of the igniter 3 is improved, and the position of the edge side can be adjusted according to the shape of the ignition end 31; meanwhile, the structure can make the gas in the combustion chamber more difficult to escape, and improves the tightness of the embedding of the ignition end 31 and the embedding groove 12.
As shown in fig. 3 and 4, the outer ring of the sliding rod 32 is provided with a tail ferrule 4 and a head ferrule 5. The tail cutting sleeve 4 is fixed at the tail end of the sliding rod 32; the head ferrule 5 is secured at the junction of the firing end 31 and the sliding stem 32. The tail ferrule 4 is provided with a tail taper 41 towards the insulating tube 2 and the head ferrule 5 is provided with a head taper 51 towards the insulating tube 2. The inner ring edges at both ends of the insulating tube 2 are provided with an inside chamfer 21, and the angle of the inside chamfer 21 is larger than the angles of the tail cone angle 41 and the head cone angle 51. During ignition, the tail cone angle 41 is inserted into the gap between the insulating ring and the sliding rod 32, so that structural sealing is realized; after ignition, the head cone angle 51 is inserted into the gap between the insulator ring and the sliding rod 32 as the igniter 3 moves, achieving a structural seal. The undercut angle 21 provides a certain buffer to the taper angle and improves the sealing effect.
In the embodiment, the tail ferrule 4 and the head ferrule 5 are conventional copper ferrules; the insulating tube 2 is a ceramic tube, and both the service life and the strength are considered.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. The utility model provides a combustion chamber ignition, characterized in that, includes combustion chamber cavity (1), insulating tube (2) and ignition ware (3), ignition ware (3) are including ignition end (31) and slide bar (32), insulating tube (2) cover is in the middle section of slide bar (32) to the one end of insulating tube (2) is fixed on lateral wall (11) of combustion chamber cavity (1), makes ignition end (31) that are located slide bar (32) tip be located combustion chamber cavity (1), lateral wall (11) inboard of combustion chamber cavity (1) is equipped with gomphosis groove (12) with ignition end (31) shape adaptation, when slide bar (32) outwards move along insulating tube (2), in ignition end (31) gomphosis groove (12).
2. A combustion chamber ignition device according to claim 1 characterized in that the end surface of the ignition end (31) remote from the sliding rod (32) and the inner side surface of the side wall (11) of the combustion chamber cavity (1) are coplanar.
3. A combustion chamber ignition device according to claim 1, characterized in that the edge side of the ignition end (31) is provided with a pointed flange (31a) directed towards the side wall (11).
4. A combustion chamber ignition device according to claim 1, characterized in that the outer ring of the sliding rod (32) is provided with a tail ferrule (4) and a head ferrule (5), the tail ferrule (4) is fixed at the tail end of the sliding rod (32), and the head ferrule (5) is fixed at the connection of the ignition end (31) and the sliding rod (32).
5. A combustion chamber ignition device according to claim 4 characterized in that the tail sleeve (4) is provided with a tail taper (41) towards the insulator tube (2) and the head sleeve (5) is provided with a head taper (51) towards the insulator tube (2).
6. A combustion chamber ignition device according to claim 5, characterized in that the tail ferrule (4) and the head ferrule (5) are copper ferrules.
7. A combustion chamber ignition device according to claim 5, characterized in that the insulating tube (2) is provided with inside cut corners (21) at its inner circumferential edges at both ends.
8. A combustion chamber ignition device according to claim 1, characterized in that the insulating tube (2) is a ceramic tube.
9. A combustion chamber ignition device according to claim 1, characterized by further comprising a high voltage power supply (6), wherein the side wall (11) of the combustion chamber body (1) is connected with the negative pole of the high voltage power supply (6), and the igniter (3) is connected with the positive pole of the high voltage power supply (6).
10. A combustion chamber ignition device according to claim 1, characterized by further comprising a control system (7), wherein the control system (7) comprises a driving module (71), a controller (72) and a thermocouple (73), the thermocouple (73) is installed on the side wall (11) of the combustion chamber cavity (1), the driving module (71) is connected with the sliding rod (32), the sliding rod (32) is driven to move back and forth in the insulating sleeve, and the controller (72) is connected with the thermocouple (73), the driving module (71) and the high voltage power supply (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110637609.XA CN113280365A (en) | 2021-06-08 | 2021-06-08 | Ignition device of combustion chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110637609.XA CN113280365A (en) | 2021-06-08 | 2021-06-08 | Ignition device of combustion chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113280365A true CN113280365A (en) | 2021-08-20 |
Family
ID=77283869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110637609.XA Pending CN113280365A (en) | 2021-06-08 | 2021-06-08 | Ignition device of combustion chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113280365A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116293787A (en) * | 2023-04-27 | 2023-06-23 | 上海交通大学 | Combustion device combining plasma and blunt body to stabilize flame |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201014505Y (en) * | 2006-11-20 | 2008-01-30 | 艾佩克斯科技(北京)有限公司 | Telescoping mechanism of microoil gun |
| AT504891B1 (en) * | 2007-02-28 | 2008-09-15 | Guetl Karl Ing | SOLID FUEL FURNACE |
| WO2009056518A2 (en) * | 2007-10-30 | 2009-05-07 | Siemens Aktiengesellschaft | Combustion chamber for gas turbines, including an igniter |
| CN102913365A (en) * | 2012-10-08 | 2013-02-06 | 中国人民解放军空军工程大学 | Annular discharge based transient state plasma igniter |
| CN106785926A (en) * | 2017-01-13 | 2017-05-31 | 贵州大学 | A kind of novel automobile spark plug |
| CN211116278U (en) * | 2019-10-25 | 2020-07-28 | 天长市中发电子有限公司 | Igniter device |
| CN211822500U (en) * | 2020-02-27 | 2020-10-30 | 黄秋平 | Telescopic high-temperature ion igniter |
| CN217540813U (en) * | 2021-06-08 | 2022-10-04 | 上海交通大学 | Ignition device of combustion chamber |
-
2021
- 2021-06-08 CN CN202110637609.XA patent/CN113280365A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201014505Y (en) * | 2006-11-20 | 2008-01-30 | 艾佩克斯科技(北京)有限公司 | Telescoping mechanism of microoil gun |
| AT504891B1 (en) * | 2007-02-28 | 2008-09-15 | Guetl Karl Ing | SOLID FUEL FURNACE |
| WO2009056518A2 (en) * | 2007-10-30 | 2009-05-07 | Siemens Aktiengesellschaft | Combustion chamber for gas turbines, including an igniter |
| CN102913365A (en) * | 2012-10-08 | 2013-02-06 | 中国人民解放军空军工程大学 | Annular discharge based transient state plasma igniter |
| CN106785926A (en) * | 2017-01-13 | 2017-05-31 | 贵州大学 | A kind of novel automobile spark plug |
| CN211116278U (en) * | 2019-10-25 | 2020-07-28 | 天长市中发电子有限公司 | Igniter device |
| CN211822500U (en) * | 2020-02-27 | 2020-10-30 | 黄秋平 | Telescopic high-temperature ion igniter |
| CN217540813U (en) * | 2021-06-08 | 2022-10-04 | 上海交通大学 | Ignition device of combustion chamber |
Non-Patent Citations (1)
| Title |
|---|
| 蒋峰: "《一种新型点火装置在汽油机中的应用研究》", 《车用发动机》, no. 5, 30 October 2004 (2004-10-30), pages 50 - 51 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116293787A (en) * | 2023-04-27 | 2023-06-23 | 上海交通大学 | Combustion device combining plasma and blunt body to stabilize flame |
| CN116293787B (en) * | 2023-04-27 | 2024-05-03 | 上海交通大学 | Combustion device combining plasma and blunt body to stabilize flame |
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