CN106939868A - Heater and its igniter are studied in detonating combustion - Google Patents
Heater and its igniter are studied in detonating combustion Download PDFInfo
- Publication number
- CN106939868A CN106939868A CN201710169142.4A CN201710169142A CN106939868A CN 106939868 A CN106939868 A CN 106939868A CN 201710169142 A CN201710169142 A CN 201710169142A CN 106939868 A CN106939868 A CN 106939868A
- Authority
- CN
- China
- Prior art keywords
- pressure measurement
- post
- groove
- hole
- spark plug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
- F02P17/12—Testing characteristics of the spark, ignition voltage or current
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/152—Digital data processing dependent on pinking
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
- F02P17/12—Testing characteristics of the spark, ignition voltage or current
- F02P2017/125—Measuring ionisation of combustion gas, e.g. by using ignition circuits
- F02P2017/128—Measuring ionisation of combustion gas, e.g. by using ignition circuits for knock detection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The invention discloses the igniter that heater is studied in a kind of detonating combustion, including spark plug, the middle jack-post being sheathed on outside the stopper rod of spark plug and the pressure measurement overcoat being sheathed on outside middle jack-post；Thermometric pressure measurement groove is offered on the inwall of pressure measurement overcoat, the thermometric through hole offered respectively for setting temperature measuring equipment connected with thermometric pressure measurement groove and the pressure measurement through hole for being connected pressure tester；Offer the middle shaft through-hole connected with thermometric pressure measurement groove on middle jack-post, and the combustion chamber of the axis groove that is connected with middle shaft through-hole, axis groove and heater is offered along the inwall of middle jack-post.The igniter that the present invention is provided carries out direct-fire using spark plug, improves the reliability of igniting, simplifies the sequential of igniting.The perforate grooving on jack-post in air collecting chamber, can effectively measurement temperature and pressure, and simple and reliable for structure while igniting.Heater is studied the invention also discloses a kind of detonating combustion including above-mentioned igniter.
Description
Technical field
The present invention relates to detonation engine technical field, heater is studied more specifically to a kind of detonating combustion
Igniter, further relates to a kind of detonating combustion research heater including above-mentioned igniter.
Background technology
Detonating combustion efficiency of thermal cycle is high, energy release is fast, is the alternative of raising supersonic speed propulsion system combustion system
Scheme.Based on detonating combustion, oblique detonation engine, supersonic speed pulse-knocking engine etc. are currently suggested, detonating combustion is mesh
One of preceding hypersonic propulsion system study hotspot.Continuous high enthalpy premix supersonic flow heater is oblique detonation engine, surpassed
The key equipment of the ground experiments such as velocity of sound pulse-knocking engine research.Pinking detonation and hair are carried out in supersonic speed premixed flow
The study mechanism of exhibition requires that high enthalpy heater can be in high stagnation pressure (being more than 1MPa), wide stagnation temperature scope (1000~2800K), big sky
Safely and reliably lighted a fire under conditions of throughput (more than 1kg) so that heater is burnt steadily.
In the prior art, ignited more than the heater device for being commonly used in ground experiment using torch ignition, equipment component
Using plug ignition.However, torch ignition ignites, SECO is complicated, empirical strong, and dangerous big, plug ignition can not
Carry out temperature, pressure measurement simultaneously.But without being capable of the effectively design of HEATER FOR MEASURING pressure and temp simultaneously.
In summary, the heater ignition device studied for detonating combustion how is efficiently solved to ignite sequential control
System is complicated, can not effectively HEATER FOR MEASURING pressure and temp the problems such as, be current those skilled in the art's urgent problem.
The content of the invention
In view of this, first purpose of the invention is to provide the igniter that heater is studied in a kind of detonating combustion,
The structure design of the igniter can efficiently solve igniting ignite SECO it is complicated, can not effective HEATER FOR MEASURING pressure
The problem of temperature, second object of the present invention is to provide a kind of detonating combustion research heater including above-mentioned igniter.
In order to reach above-mentioned first purpose, the present invention provides following technical scheme：
The igniter of heater is studied in a kind of detonating combustion, including spark plug, is sheathed on outside the stopper rod of the spark plug
Middle jack-post and the pressure measurement overcoat that is sheathed on outside the middle jack-post；
Thermometric pressure measurement groove is offered on the inwall of the pressure measurement overcoat, is opened respectively with what the thermometric pressure measurement groove was connected
Provided with for setting the thermometric through hole of temperature measuring equipment and pressure measurement through hole for connecting pressure tester；
The middle shaft through-hole connected with the thermometric pressure measurement groove is offered on the middle jack-post, and along along the middle jack-post
Wall offers the axis groove connected with the middle shaft through-hole, the combustion chamber of the axis groove and heater.
Preferably, in above-mentioned igniter, the middle jack-post include first in shaft part in shaft part and second, in described first
The tail end of shaft part is tightly connected with the spark plug, and head end is fixedly connected with the tail end of shaft part in described second.
Preferably, in above-mentioned igniter, in described first in the head end of shaft part and described second in the tail end of shaft part
One is provided with boss, and another one is provided with the groove coordinated with the boss.
Preferably, in above-mentioned igniter, the spark plug is fixedly connected with the middle jack-post.
Preferably, in above-mentioned igniter, the tail end of the stopper rod is disposed with the igniting for being connected with igniter
Device connecting portion, nut and the screw thread for being connected with middle jack-post, the end face seal of the end face of the nut and the pressure measurement overcoat
Connection.
Preferably, in above-mentioned igniter, the internal diameter of the middle jack-post is more than the external diameter of the stopper rod, and the middle jack-post
On offer the cooling through hole connected with the air collecting chamber.
Preferably, in above-mentioned igniter, including multiple cooling through holes, and multiple cooling through holes are along in described
The circumference of jack-post is uniformly distributed, and is staggered with the axis groove.
Preferably, in above-mentioned igniter, one end and the spark plug of the pressure measurement overcoat are tightly connected, other end energy
It is enough to be connected with the spray column head seal of heater.
Preferably, in above-mentioned igniter, the end face that the pressure measurement overcoat coordinates with the spark plug is offered for putting
The first sealed groove of sealing ring is put, the inwall of the pressure measurement overcoat offers the second sealed groove for placing sealing ring,
The thermometric pressure measurement groove is located at second sealed groove close to the side of the spark plug tail end.
The igniter that the present invention is provided includes spark plug, middle jack-post and pressure measurement overcoat.Wherein, axis column sleeve is located at spark
Outside the stopper rod of plug, pressure measurement overcoat is sheathed on outside middle jack-post.Thermometric pressure measurement groove is offered on the inwall of pressure measurement overcoat, is surveyed with thermometric
Press the thermometric through hole offered respectively for setting temperature measuring equipment of groove connection and the pressure measurement through hole for connecting pressure tester；
The middle shaft through-hole connected with thermometric pressure measurement groove is offered on middle jack-post, and is offered and middle shaft through-hole company along the inwall of middle jack-post
The combustion chamber of logical axis groove, axis groove and heater.
The igniter provided using the present invention, thermometric through hole and pressure measurement through hole are provided with due to being put outside pressure measurement, and are surveyed
Warm through hole and pressure measurement through hole are connected with thermometric pressure measurement groove, and thermometric pressure measurement groove is further through the middle shaft through-hole on middle jack-post with
Axle groove and combustion chamber, thus the temperature measuring equipments such as thermocouple deeply can be measured combustion to combustion chamber by thermometric through hole
Burn the temperature of room.Simultaneously as pressure measurement through hole and combustion chamber, thus the pressure of combustion chamber can pass to pressure measurement through hole, therefore
By the way that pressure measurement through hole is connected with pressure tester, you can the pressure of measurement combustion chamber.To sum up, the igniter that the present invention is provided is adopted
Direct-fire is carried out with spark plug, the reliability of igniting is improved, the sequential of igniting is simplified.The perforate on jack-post in air collecting chamber
Grooving, can effectively measurement temperature and pressure, and simple and reliable for structure while igniting.
In order to reach above-mentioned second purpose, heater, pinking combustion are studied present invention also offers a kind of detonating combustion
Burning research heater includes any of the above-described kind of igniter.Because above-mentioned igniter has above-mentioned technique effect, with this
The detonating combustion research heater of igniter should also have corresponding technique effect.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the assembling structure schematic diagram of the igniter of a specific embodiment of the invention；
Fig. 2 is the three dimensional structure diagram of spark plug in Fig. 1；
Fig. 3 is Fig. 2 profile；
Fig. 4 is the three dimensional structure diagram of pressure measurement overcoat in Fig. 1；
Fig. 5 is Fig. 4 cross-sectional view；
Fig. 6 is the three dimensional structure diagram of shaft part in first in Fig. 1；
Fig. 7 is Fig. 6 cross-sectional view；
Fig. 8 is the end face structure schematic diagram of shaft part in second in Fig. 1；
Fig. 9 is Fig. 8 F-F sectional views.
Marked in accompanying drawing as follows：
Spark plug 1, stopper rod 11, screw thread 12, round platform 13, nut 14, igniter connecting portion 15；Pressure measurement overcoat 2, thermometric pressure measurement
Groove 21, thermometric through hole 22, pressure measurement through hole 23, the first o-ring groove 24, the second o-ring groove 25, end face 26；In first
Axle portion 31, the second middle shaft part 32, middle shaft through-hole 33, axis groove 34 cools down through hole 35, middle axle thread 311.
Embodiment
The embodiment of the invention discloses the igniter that heater is studied in a kind of detonating combustion, with effective HEATER FOR MEASURING pressure
Power temperature.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1-Fig. 9 is referred to, Fig. 1 is the assembling structure schematic diagram of the igniter of a specific embodiment of the invention；Fig. 2
For the three dimensional structure diagram of spark plug in Fig. 1；Fig. 3 is Fig. 2 profile；Fig. 4 is that the three-dimensional structure of pressure measurement overcoat in Fig. 1 is shown
It is intended to；Fig. 5 is Fig. 4 cross-sectional view；Fig. 6 is the three dimensional structure diagram of shaft part in first in Fig. 1；Fig. 7 is Fig. 6's
Cross-sectional view；Fig. 8 is the end face structure schematic diagram of shaft part in second in Fig. 1；Fig. 9 is Fig. 8 F-F sectional views.
In one embodiment, the igniter that the present invention is provided includes spark plug 1, middle jack-post and pressure measurement overcoat 2.
Wherein, middle jack-post is the middle jack-post on spray column head, is sheathed on outside the stopper rod 11 of spark plug 1, and pressure measurement overcoat 2 is sheathed on
In at least part outside jack-post.Under confined state, spark plug 1 is fixed with respect to spray column head, and middle jack-post and pressure measurement overcoat 2 are relative
Fixed, being specifically fixedly connected relation can be arranged as required to, and can be not especially limited herein.
Thermometric pressure measurement groove 21 is offered on the inwall of pressure measurement overcoat 2, is opened up respectively with what thermometric pressure measurement groove 21 was connected
There are the thermometric through hole 22 for setting temperature measuring equipment and the pressure measurement through hole 23 for connecting pressure tester.Namely thermometric through hole 22
Thermometric pressure measurement groove 21 is communicated to one end of pressure measurement through hole 23, the other end is communicated to the outer wall of pressure measurement overcoat 2, consequently facilitating
The setting of corresponding temperature measuring equipment and pressure tester.Certainly, can be by screw and pad when thermometric and pressure measurement need not be carried out
Blocked Deng by thermometric through hole 22 with pressure measurement through hole 23.It is preferred that, thermometric pressure measurement groove 21 is opened up along the circumference of pressure measurement overcoat 2, tool
Body can open up a circle.
The middle shaft through-hole 33 connected with thermometric pressure measurement groove 21 is offered on middle jack-post, and is offered along the inwall of middle jack-post
The axis groove 34 connected with middle shaft through-hole 33, the combustion chamber of axis groove 34 and heater.Thus the gas of combustion chamber
Thermometric pressure measurement groove 21 can be entered by shaft through-hole 33 by axis groove 34, in, then by pressure measurement through hole 23, thus passed through
Pressure detecting can be carried out in the connection pressure tester of pressure measurement through hole 23.It is preferred that, middle shaft through-hole 33 is disposed radially.Certainly, by
In pressure measurement through hole 23 be used for pressure test, those skilled in the art expect naturally spark plug 1, middle jack-post, pressure measurement overcoat 2 and with spray
The connection of post head should ensure that pressure measurement through hole 23 to the sealing of axis groove 34, that is, spark plug 1, middle jack-post, outside pressure measurement
It is tightly connected between set 2 and spray column head in addition to by the path of combustion chamber to pressure measurement through hole 23 and thermometric through hole 22.
The igniter provided using the present invention, due to being provided with thermometric through hole 22 and pressure measurement through hole 23 on pressure measurement overcoat 2,
And thermometric pressure measurement groove 21 is communicated with thermometric through hole 22 and pressure measurement through hole 23, thermometric pressure measurement groove 21 is further through on middle jack-post
Middle shaft through-hole 33 and axis groove 34 and combustion chamber, thus can be deep by thermometric through hole 22 by temperature measuring equipments such as thermocouples
Enter to combustion chamber to measure the temperature of combustion chamber.Simultaneously as pressure measurement through hole 23 and combustion chamber, thus the pressure of combustion chamber
Pressure measurement through hole 23 can be passed to, therefore by the way that pressure measurement through hole 23 is connected with pressure tester, you can the pressure of measurement combustion chamber.It is comprehensive
On, the igniter that the present invention is provided carries out direct-fire using spark plug 1, improves the reliability of igniting, simplifies igniting
Sequential.The perforate grooving on jack-post in air collecting chamber, while igniting can effectively measurement temperature and pressure, and it is simple in construction can
Lean on.
Specifically, middle jack-post include first in shaft part 32 in shaft part 31 and second, the tail end and spark of shaft part 31 in first
Plug 1 is tightly connected, and head end is fixedly connected with the tail end of shaft part in second 32.Axis column sectional formula set, be easily installed, and with survey
Press the cooperation of the grade of overcoat 2.In middle jack-post includes first in shaft part 31 and second in the case of shaft part 32, in first shaft part 31 with
Axis groove 34 is opened up in second on shaft part 32, and the axis groove 34 of the two is connected.Pressure measurement overcoat 2 is sheathed on the first axis
Outside section 31, therefore middle shaft through-hole 33 is opened up in first on shaft part 31.Middle jack-post and the annexation on spray column head etc. refer to existing
Technology, here is omitted.It should be noted that herein and the head end of each part for being mentioned below, tail end refer to corresponding component phase
To two ends.Wherein, tail end refers both to one end that spark plug 1 stretches out in spray column head, that is, the left end in Fig. 1, then head end refers to
I.e. the right-hand member shown in relative other end Fig. 1.
Further, one of tail end of shaft part 32 is provided with boss in the head end and second of shaft part 31 in first, separately
One is provided with the groove coordinated with boss.For example in first the head end of shaft part 31 sets the tail end of shaft part 32 in boss, second
Corresponding groove is set, thus boss is intercalated in groove during assembling, and with shaft part 32 in shaft part in first 31 and second
Positioning, consequently facilitating accurate install.
Specifically, shaft part 31 can be welded with shaft part in second 32 in first.As needed also can be by above-mentioned boss and recessed
The end that groove coordinates is disposed as inclined plane, thus boss and groove intercalation form V-notch between the latter two, and then can pass through
The two is welded in the seam crossing of V-notch.It is preferred that, welding quality can be ensured with allowance weld.
It is preferred that, spark plug 1 is fixedly connected with middle jack-post in above-described embodiment., will for the ease of the installation of igniter
Spark plug 1 is fixedly connected with middle jack-post, preferably can be removably to be fixedly connected, thus be easy to needing to change or maintenance
When dismounting to the two, so as to reduce later maintenance cost.Certainly, spark plug 1 and pressure measurement overcoat 2 can also be passed through as needed
It is fixedly connected, pressure measurement overcoat 2 is fixedly connected with middle jack-post etc., and mode fixes spark plug 1.
Further, the tail end of stopper rod 11 be disposed with for be connected with igniter igniter connecting portion 15, nut
14 and the screw thread 12 for being connected with middle jack-post, the end face of nut 14 is tightly connected with the end face 26 of pressure measurement overcoat 2.Igniter connects
Socket part 15 can be specifically connected by being threaded by screw thread with the output cord of the igniter of spark plug 1.Set on stopper rod 11
Internal thread is set on external screw thread, corresponding middle jack-post, i.e., middle axle thread 311, so that stopper rod 11 be screwed with middle jack-post.Nut 14
The end face 26 of end face and pressure measurement overcoat 2 be tightly connected so that the sealing between ensureing the two.Meanwhile, stopper rod 11 and middle jack-post
When screwing, pressure measurement overcoat 2 is pressed between the end face on nut 14 and spray column head by nut 14, realizes consolidating for pressure measurement overcoat 2
It is fixed.It is simple and compact for structure by the structure without individually fixing pressure measurement overcoat 2, and be easily installed.
On the basis of the various embodiments described above, the internal diameter of middle jack-post is more than the external diameter of stopper rod 11, and is offered on middle jack-post
The cooling through hole 35 connected with air collecting chamber.There is gap after thus spark plug 1 is installed with axis intercolumniation, the circumferential weld in gap is used to collect
Air cavity cooling air-flow enters rear cooling protection spark plug 1.It is preferred that, cooling through hole 35 is opened in the head of middle jack-post, thus cold
But air-flow can by correspondence axis post head position, along middle jack-post flow to along jack-post afterbody, fully carry out heat with stopper rod 11
Amount is exchanged, to reduce the temperature of stopper rod 11.
It is possible to further cool down through holes 35 including multiple, and multiple cooling through holes 35 are along circumferential uniform point of middle jack-post
Cloth, and be staggered with axis groove 34.Such as circumferentially be uniformly arranged six cooling through holes 35 on middle jack-post, each cooling through hole 35 it
Between 60 degree distribution.It is preferred that, cooling through hole 35 can be in 45 degree with the axis of middle jack-post.
In order to ensure spark plug 1, middle jack-post, pressure measurement overcoat 2 and sealing with spray column head, preferably in above-mentioned each reality
Apply in example, one end and the spark plug 1 of pressure measurement overcoat 2 are tightly connected, the other end can be connected with the spray column head seal of heater.
Above-mentioned sealing structure is simple, and ensure that the pressure of combustion chamber is transmitted by axis groove 34 and thermometric pressure measurement groove 21, improves
The precision of pressure test.
Specifically, the end face that pressure measurement overcoat 2 coordinates with spark plug 1 offers the first sealed groove for placing sealing ring
24, the end face surface of pressure measurement overcoat 2 preferably is smooth, digs the first sealed groove 24 for having annular, for mounting O-shaped rings, specifically
Designed according to the installation seal standard of O-ring.Accordingly, the end face on spray column head can also open up the head for placing sealing ring
The end face 26 of pressure measurement overcoat 2 compresses sealing ring under portion's sealed groove, installment state, will be close between outside pressure measurement and spray column head
Envelope.
Further, the inwall of pressure measurement overcoat 2 offers the second sealed groove 25 for placing the second sealing ring, thermometric
Pressure measurement groove 21 is located at the second sealed groove 25 close to the side of the tail end of spark plug 1.Namely by the second sealed groove 25,
I.e. axis sealed groove seals pressure measurement overcoat 2 and axis intercolumniation.It is close that specific second sealed groove 25 can be used for dress O-ring
Envelope, its depth is designed according to the installation standard of O-ring.Fastened and sealed simultaneously with O-ring by the screw thread 12 of spark plug 1, it is ensured that
The convenience that uses of security.
Below by one preferred embodiment exemplified by explanation：
In one preferred embodiment, igniter includes spark plug 1, middle jack-post and pressure measurement overcoat 2.
The output cord of the preferably semiconductor spark plug of spark plug 1, its top and spark plug igniter is revolved by nut 14
It is tight to be connected.The diameter of stopper rod 11 is specifically as follows 12mm, and the screw thread 12 of M14 × 1.25 is processed at the top of bar, and according to processing
Need to be threaded escape, rod end sets off-gauge M30 nuts 14, and the bottom surface of nut 14 is slightly larger thick 5mm circle
Platform 13, the bottom of round platform 13 is smooth, so that when ensureing that contact surface is sealed, sealed reliable.The bar design of the top of spark plug 1
The screw thread of M16 × 1 simultaneously opens up groove vertically, to connect the output cable of igniter.
Pressure measurement overcoat 2 has connection, sealing, pressure measurement, the function of thermometric concurrently.The outside of pressure measurement overcoat 2 can be for length of side 24mm's
Step up to fix Deng hexagon, when being easily installed.Inner side is diameter 26mm through hole.The tail end end face of pressure measurement overcoat 2 is smooth, and digging has
First sealed groove 24, i.e. annular groove, for mounting O-shaped rings, groove is designed according to the installation seal standard of O-ring.
Inwall opens up thermometric pressure measurement groove 21, and outer surface is equipped with thermometric through hole 22 and pressure measurement through hole 23, with the phase of thermometric pressure measurement groove 21
It is logical.The side of the close head end of thermometric pressure measurement groove 21 opens up the second sealed groove 25, i.e. axis sealed groove, O-shaped for filling
Circle sealing, the depth of groove is designed according to the installation standard of O-ring.The end face 26 of head end is mounting plane, and contact surface position is used for
O-ring is compressed, therefore design surface is relatively smooth.Thermometric through hole 22 installs thermocouple, without using when with M4 spiral shells as depicted
Nail and red copper gasket seal are blocked.Second through hole can weld pressure measurement nozzle, and then connect load cell, for measuring burning
The pressure of room.
Middle jack-post include first in shaft part 32 in shaft part 31 and second, the internal diameter of the two is 14mm so that stopper rod 11 is pacified
There is the circumferential weld in 1mm gaps after dress is used for air collecting chamber cooling air-flow into rear cooling protection spark plug 1.Shaft part 31 and in first
The junction of shaft part 32 is respectively designed to boss and groove in two, and the two installs connection, is connect in oblique allowance weld slot welding so that two
Person forms an entirety.Shaft part 31 just forms groove with the axis groove 34 of shaft part in second 32 to together with first.Gas collection
Chamber leads to middle jack-post endoporus and opens up 6 equally distributed cooling through holes 35, and cooling through hole 35 and thermocouple groove stagger, and each cooling is logical
60 degree of distributions between hole 35.Through hole 35 is cooled down in air collecting chamber bottom, in 45 degree.
During assembling, shaft part 32 in shaft part 31 and second in the first of spray head axis post after the completion of above-mentioned each component processing
It is welded into an entirety.O-ring is loaded onto at the top of air collecting chamber, each position of pressure measurement overcoat 2 loads onto O-ring, is then charged into spark plug 1,
Screw.Spark plug 1 has compressed each contact surface at O-ring, it is ensured that air-tightness.Meanwhile, air collecting chamber is sprayed by cooling down through hole 35
Enter cold air, cooling spark plug 1 head so that be unlikely to that temperature is too high during ignition operation, can be with the use longevity of extending plug 1
Life.During installation, thermocouple can extend into the head of spark plug 1 by thermocouple hole slot, measure the temperature of combustion chamber
Degree.The pressure of combustion chamber passes to pressure measurement nozzle by the thermometric pressure measurement groove 21 where thermocouple hole slot gap and thermocouple hole, surveys
Obtain the pressure of combustion chamber.
Above-mentioned igniter installs fixation, sealing, cooling, thermometric, pressure measurement progress integrated design by spark plug 1,
In limited tight space, the good ignition schemes mentality of designing of spray head spark plug 1 and method is obtained.Using in spark plug
Screw thread is processed on 1 head design nut 14, the bar of spark plug 1, is directly tightened.Spark plug 1 steps up to survey while being tightened
Means of press seals overcoat so that overcoat results in good sealing.Hermetically sealed case uses multiple O-ring diverse location sealing means
Sealed.Hermetically sealed case is convenient for measuring pressure by digging ring shaped slot so that combustion chamber air pressure passes to pressure tap by thermometric groove.
Thermometric and pressure measurement are on same passage.By way of logical cooling aperture stays seam, a part of gas of air collecting chamber can be led to
Spark plug 1 is crossed, the air cooling of spark plug 1 protection is given.The namely gas of air collecting chamber leads on the basis of oxidant etc. is mainly used in
A part is cooled down to cooling through hole 35 to spark plug 1.
Based on the igniter provided in above-described embodiment, heater is studied present invention also offers a kind of detonating combustion,
Detonating combustion research heater includes any one igniter in above-described embodiment.The spray column of heater is studied in detonating combustion
The structures such as head are not especially limited herein, refer to prior art, and here is omitted.Studied and heated due to the detonating combustion
Device employs the igniter in above-described embodiment, so the beneficial effect of detonating combustion research heater refer to above-mentioned reality
Apply example.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. the igniter of heater is studied in a kind of detonating combustion, it is characterised in that including spark plug, be sheathed on the spark plug
Stopper rod outside middle jack-post and the pressure measurement overcoat that is sheathed on outside the middle jack-post；
Thermometric pressure measurement groove is offered on the inwall of the pressure measurement overcoat, is offered respectively with what the thermometric pressure measurement groove was connected
For setting the thermometric through hole of temperature measuring equipment and pressure measurement through hole for connecting pressure tester；
The middle shaft through-hole connected with the thermometric pressure measurement groove is offered on the middle jack-post, and is opened along the inwall of the middle jack-post
Provided with the axis groove connected with the middle shaft through-hole, the combustion chamber of the axis groove and heater.
2. igniter according to claim 1, it is characterised in that the middle jack-post include first in shaft part and second
Shaft part, the tail end of shaft part is tightly connected with the spark plug in described first, and the tail end of head end and shaft part in described second is fixed
Connection.
3. igniter according to claim 2, it is characterised in that in described first in the head end of shaft part and described second
One of tail end of shaft part is provided with boss, and another one is provided with the groove coordinated with the boss.
4. igniter according to claim 1, it is characterised in that the spark plug is fixedly connected with the middle jack-post.
5. igniter according to claim 4, it is characterised in that the tail end of the stopper rod, which is disposed with, to be used for and point
Igniter connecting portion, nut and the screw thread for being connected with middle jack-post of firearm connection, the end face of the nut and the pressure measurement
The end face seal connection of overcoat.
6. the igniter according to claim any one of 1-5, it is characterised in that the internal diameter of the middle jack-post is more than described
The cooling through hole connected with air collecting chamber is offered on the external diameter of stopper rod, and the middle jack-post.
7. igniter according to claim 6, it is characterised in that including multiple cooling through holes, and it is multiple described
Cool down circumference of the through hole along the middle jack-post to be uniformly distributed, and be staggered with the axis groove.
8. the igniter according to claim any one of 1-5, it is characterised in that one end of the pressure measurement overcoat with it is described
Spark plug is tightly connected, and the other end can be connected with the spray column head seal of heater.
9. igniter according to claim 8, it is characterised in that the end that the pressure measurement overcoat coordinates with the spark plug
Face offers the first sealed groove for placing sealing ring, and the inwall of the pressure measurement overcoat is offered for placing sealing ring
Second sealed groove, the thermometric pressure measurement groove is located at second sealed groove close to the side of the spark plug tail end.
10. heater is studied in a kind of detonating combustion, it is characterised in that including the igniting dress as described in claim any one of 1-9
Put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710169142.4A CN106939868B (en) | 2017-03-21 | 2017-03-21 | A kind of heater and its igniter for detonating combustion research |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710169142.4A CN106939868B (en) | 2017-03-21 | 2017-03-21 | A kind of heater and its igniter for detonating combustion research |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106939868A true CN106939868A (en) | 2017-07-11 |
| CN106939868B CN106939868B (en) | 2019-01-08 |
Family
ID=59463377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710169142.4A Active CN106939868B (en) | 2017-03-21 | 2017-03-21 | A kind of heater and its igniter for detonating combustion research |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106939868B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336814A (en) * | 2020-03-10 | 2020-06-26 | 株洲瑞德尔冶金设备制造有限公司 | Joint for low-temperature test of sintering furnace |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6138654A (en) * | 1998-10-15 | 2000-10-31 | Mide Technology Corporation | Piezoelectric ignition and sensing device |
| JP2004349133A (en) * | 2003-05-22 | 2004-12-09 | Denso Corp | Ignition device for combustion engine and mounting structure of same |
| CN101825042A (en) * | 2010-03-25 | 2010-09-08 | 北京大学 | Pulse detonation engine (PDE) magnetic valve high frequency oil supply and ignition system |
| CN102865157A (en) * | 2011-07-05 | 2013-01-09 | 陈明 | Main component device of micro-emission high-energy-saving multiplied tremendous-power pulse knocking engine |
| CN103808450A (en) * | 2012-11-12 | 2014-05-21 | 森萨塔科技公司 | Pressure-measuring plug for a combustion engine |
| CN204064550U (en) * | 2014-07-15 | 2014-12-31 | 清华大学 | Supercharging gasoline engine super detonation test unit |
-
2017
- 2017-03-21 CN CN201710169142.4A patent/CN106939868B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6138654A (en) * | 1998-10-15 | 2000-10-31 | Mide Technology Corporation | Piezoelectric ignition and sensing device |
| JP2004349133A (en) * | 2003-05-22 | 2004-12-09 | Denso Corp | Ignition device for combustion engine and mounting structure of same |
| CN101825042A (en) * | 2010-03-25 | 2010-09-08 | 北京大学 | Pulse detonation engine (PDE) magnetic valve high frequency oil supply and ignition system |
| CN102865157A (en) * | 2011-07-05 | 2013-01-09 | 陈明 | Main component device of micro-emission high-energy-saving multiplied tremendous-power pulse knocking engine |
| CN103808450A (en) * | 2012-11-12 | 2014-05-21 | 森萨塔科技公司 | Pressure-measuring plug for a combustion engine |
| CN204064550U (en) * | 2014-07-15 | 2014-12-31 | 清华大学 | Supercharging gasoline engine super detonation test unit |
Non-Patent Citations (1)
| Title |
|---|
| 陈伟强: "超声速预混气扩张流道射流起爆研究", 《超声速预混气扩张流道射流起爆研究》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336814A (en) * | 2020-03-10 | 2020-06-26 | 株洲瑞德尔冶金设备制造有限公司 | Joint for low-temperature test of sintering furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106939868B (en) | 2019-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105761767B (en) | Nuclear power station pipeline outside wall surface temperature measuring equipment | |
| CN104895699B (en) | Small-sized gas gas blowout note optical clear burner | |
| CN108535320A (en) | The experimental system that goaf coal spontaneous combustion induces gas and coal dust list, repeatedly explodes | |
| CN103471712A (en) | Ultra-violet flame detector with high temperature remote sensing element | |
| US2538642A (en) | Thermopile flame detector for combustion devices | |
| CN108008062A (en) | Laser ignition combustion chamber is used in a kind of titanium fire experiment | |
| CN104976614A (en) | Multifunctional integrated combustor | |
| CN111457585A (en) | High-temperature pure air heater | |
| CN109708145B (en) | Visual high-pressure combustor for measuring propellant burning speed under multiple swinging angles | |
| CN106939868A (en) | Heater and its igniter are studied in detonating combustion | |
| CN113776842A (en) | High-pressure combustor with pressure measurement and solid particle collection functions | |
| CN107030372A (en) | Safety-type remote control is ignited rod | |
| CN203587242U (en) | Temperature sensor for gasification furnace in coal chemical industry | |
| CN205427163U (en) | Battery test device | |
| CN109855982A (en) | A kind of liquefied petroleum gas cylinder explosion test device and test method | |
| CN104154832A (en) | Blasting method for high-temperature sealed fire areas | |
| CN206431077U (en) | A kind of large scale pipeline powder coal weak ignition explosive test system | |
| CN205538771U (en) | Monitoring system of power plant boiler water cold wall pipe heat -transfer character | |
| US3212556A (en) | Oil vaporizing device for oil burners | |
| CN104062022A (en) | Full-blast-hole temperature monitoring device | |
| CN104390716B (en) | A kind of solid engines inflatable temp measuring system | |
| CN106761639B (en) | Combustion in situ electric igniter and monitoring system | |
| CN206430187U (en) | The air cooling equipment of uphole steam generator flame monitor | |
| CN207757053U (en) | Deburring machine by gas heat energy | |
| CN109443681B (en) | Test connector suitable for high vacuum and high temperature and high pressure conditions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |