CN216482831U

CN216482831U - Device for measuring flame height by using straight pipe

Info

Publication number: CN216482831U
Application number: CN202123170438.9U
Authority: CN
Inventors: 陶国景; 赵继鹏
Original assignee: Ningbo Link Microelectronics Technology Co ltd
Current assignee: Ningbo Link Microelectronics Technology Co ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-05-10
Anticipated expiration: 2031-12-14

Abstract

The utility model discloses an use straight tube to measure flame height device can conveniently measure the several milliseconds rank rapidly and send out the fire flame height in the twinkling of an eye, uses the straight tube to measure flame height device and includes: the device comprises a fire leading pipe, a fire leading hole and one or more than one collecting light channel, wherein the fire leading hole penetrates through the fire leading pipe, the one or more than one collecting light channel is communicated with the fire leading hole, and the axis of the collecting light channel is intersected with the axis of the fire leading hole. And the photoelectric device is arranged in the light collecting channel and faces the direction of the fire guiding hole. The ignition flame extends along the ignition hole, wherein the photoelectric device generates an electric signal according to the light of the flame in the ignition hole, then the ignition height of the ignition flame is determined, and the detection is flexible and high in accuracy.

Description

Device for measuring flame height by using straight pipe

Technical Field

The utility model belongs to the technical field of the component technique and specifically relates to an use straight tube to measure flame height device is related to.

Background

The electronic ignition device is a safe and reliable ignition device which is resistant to high-temperature collision and is used for replacing a conventional ignition bridge wire and ignition powder, and the ignition device forms flame when being ignited, and the flame emits bright light. The method is characterized in that the height of the ignition flame is measured as a necessary measurement index, so that whether the height of the flame emitted by the electronic ignition device meets the requirement or not is verified. Therefore, the device capable of accurately measuring the instantaneous ignition height in the order of milliseconds is an important component for measuring the ignition height.

Disclosure of Invention

The utility model aims at providing an use straight tube to measure flame height device.

The utility model discloses the technical scheme who adopts: an apparatus for measuring flame height using a straight tube, comprising:

the ignition tube is provided with a fire guide hole which penetrates through the ignition tube and one or more than one collection light channel which is communicated with the fire guide hole, and the axis of the collection light channel is intersected with the axis of the fire guide hole;

and the photoelectric device is arranged in the light collecting channel and faces the direction of the fire guiding hole.

In one embodiment, the collection light channels are two or more, and the collection light channels are distributed at intervals along the axial direction of the fire guide hole.

In one embodiment, the axes of the collection light channels are perpendicular to the axis of the fire hole, and the projections of two adjacent collection light channels on a plane perpendicular to the axis of the fire hole are mutually staggered.

In one embodiment, two or more of the light collecting channels are distributed in an equal difference mode, and the minimum distance between the central lines of two adjacent light collecting channels is set to be A, wherein A is more than or equal to 0.1mm and less than or equal to 10 mm.

In one embodiment, the minimum dimension of the center line of the first collecting light channel from the ignition end face of the squib is H, wherein H is greater than or equal to 1mm and less than or equal to 8 mm.

In one embodiment, the diameter of the fire hole is set as D, wherein D is more than or equal to 3mm and less than or equal to 10 mm.

In one embodiment, the squib includes a tubular body portion and at least one collecting channel tube partially protruding from a surface of the body portion, wherein a tube inner space of the body portion constitutes the flame guide hole, and the collecting light channel extends from an end of the collecting channel tube to the flame guide hole.

In one embodiment, the squib further comprises a fixing tube installed on the collection channel tube, and the photoelectric device is inserted into the fixing tube.

In one embodiment, the squib is made of a wear resistant, smooth, light opaque, high temperature resistant material.

In one embodiment, the optoelectronic device comprises one or more of a photocell, a photomultiplier, a photoresistor, a photodiode, a phototriode, a photovoltaic cell, and a photocoupler.

After the structure is adopted, compared with the prior art, the utility model the advantage that has is: the flame that fires extends along the fire guiding hole, and wherein, photoelectric device converts the signal of telecommunication into according to the light conversion that the flame arrived the position in the fire guiding hole, then confirms the height of firing of flame that fires, detects in a flexible way and the degree of accuracy height.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic structural view of the device for measuring flame height using a straight pipe according to the present invention.

Fig. 2 is an explosion structure diagram of the device for measuring the flame height by using a straight pipe according to the present invention.

Fig. 3 is a schematic structural view of the device for measuring flame height using a straight pipe according to the present invention.

Fig. 4 is a schematic sectional view of the flame height measuring apparatus using a straight pipe according to the present invention.

In the figure: a squib 10; a flame-guiding hole 11; a collection light channel 12; a tube body portion 13; a collection channel tube 14; an opto-electronic device 20; a photoelectric device pin 21; a protective body 22; a positioning portion 221; a light-condensing portion 222; a photosensitive medium 23; the tube 30 is fixed.

Detailed Description

The following description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention.

Embodiments, as shown in fig. 1 to 4, the utility model discloses an use straight tube to measure flame height device, this use straight tube to measure flame height device is used for detecting and the high signal that fires of induction fire control pipe to with this high signal that fires output to the control panel, can accurate measurement several milliseconds rank fire high device in the twinkling of an eye. The control panel can receive the electric signal output by the flame height measuring device using the straight pipe to determine the ignition height, and then judges whether the ignition flame meets the requirement or not according to the ignition height.

The device for measuring the height of flame by using a straight pipe comprises a fire guiding pipe 10 and a photoelectric device 20 arranged on the fire guiding pipe 10, wherein the fire guiding pipe 10 is provided with a fire guiding hole 11 penetrating through and one or more than one collection light channel 12 communicated with the fire guiding hole 11, and the axis of the collection light channel 12 is intersected with the axis of the fire guiding hole 11. The flame-guiding hole 11 extends in the longitudinal direction of the flame-guiding tube 10, wherein the diameter of the flame-guiding hole 11 is the same and is linear. The collection light path 12 is opened from the outer peripheral wall of the squib 10 or an extension wall of the outer peripheral wall of the squib 10 in the direction of the flame guide hole 11 so that the collection light path 12 and the flame guide hole 11 communicate with each other. Optionally, the squib 10 is made of a wear-resistant, light-tight, smooth, high temperature resistant material to enhance the transmission of the flame and the flame generated relationship along the cavity space and to avoid the interference of external light. Alternatively, the squib 10 is entirely made of a black material. Alternatively, the photoelectric device may be one or more of a photoelectric tube, a photomultiplier, a photoresistor, a photodiode, a phototriode, a photocell, and a photocoupler.

The photoelectric device 20 is installed in the collection light channel 12 and faces the direction of the fire guiding hole 11, and the photoelectric device 20 can detect light rays generated by the flame ignited in the corresponding collection light channel 12 from the fire guiding hole 11. The optoelectronic devices 20 are mounted to the collection light channels 12, each collection light channel 12 representing a corresponding firing height. For example, when one collecting light channel 12 is set, it indicates whether the ignition height of the ignition flame reaches or exceeds the corresponding ignition height of the collecting light channel 12.

When the collection optical channel 12 is provided with two or more than two, the corresponding ignition height of the ignition flame can be detected, so that the size of the ignition height can be accurately judged. Wherein, two or more than two collecting light channels 12 are distributed at intervals along the axial direction of the ignition hole 11 to form a step-type increasing structure to judge different light-emitting height specifications. For example, two or more of the light collecting channels 12 are distributed with equal difference, and the distance between two adjacent light collecting channels 12 is equal. Optionally, the minimum distance between the center lines of two adjacent light collecting channels 12 is set as A, wherein A is more than or equal to 0.1mm and less than or equal to 10 mm. The minimum distance between the center lines of two adjacent light collecting channels 12 can be set to 0.1mm, 0.2mm, 0.5mm, 0.8mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, etc. Different minimum distances represent different detection accuracies, and certainly, the minimum distance may be expanded or reduced according to different accuracy requirements, which is not described herein again.

It should be noted that two or more than two collecting light channels 12 are distributed at intervals along the axial direction of the fire guiding hole 11 to form a stepped increasing structure, wherein the distance between two adjacent collecting light channels 12 is gradually reduced from the first collecting light channel 12 to the collecting light channel 12 at the end, so as to improve the accuracy of detection. Wherein the first collection light channel 12 refers to the collection light channel 12 closest to the initial point of the ignition flame.

The two or more collection light passages 12 are spaced apart along the axial direction of the ignition hole 11, and may be configured to be spaced apart along a straight line to be distributed at different heights.

Optionally, the diameter of the fire hole 11 is set as D, wherein D is larger than or equal to 3mm and smaller than or equal to 15 mm. Specifically, D is set to 3mm, 4.2mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 12mm, 13mm, 15mm, or the like. The diameter of the flame-guiding hole 11 can be adjusted according to the diameter of the detected flame. For example, the flame height measuring apparatus using a straight tube has a flame size of about 5 to 8mm in width and 1 to 20mm in height. The short time of flame entering the squib 10, 1-10ms, the temperature has little influence on the pipeline, and the whole structure has stable size.

In one embodiment, two or more of the light collecting channels 12 are spaced along the axis of the fire hole 11, the axis of the light collecting channel 12 is perpendicular to the axis of the fire hole 11, and the projections of two adjacent light collecting channels 12 on the plane perpendicular to the axis of the fire hole 11 are mutually offset. In the present embodiment, two adjacent light collecting channels 12 are distributed in a staggered manner, that is, the optoelectronic device 20 is distributed in a staggered manner around the fire guiding hole 11, so that the firing height can be detected from different angles of the fire guiding tube 10, the spatial layout of the fire guiding tube 10 can be fully utilized, the size of the fire guiding tube 10 and the distance between two adjacent light collecting channels 12 are reduced, and the detection precision is improved.

The minimum size of the central line of the first light collecting channel 12 from the ignition end face of the squib 10 is H, wherein H is more than or equal to 1mm and less than or equal to 8 mm. The first collecting light channel 12 represents the minimum value at which the firing height can be detected, where H can be set to 1mm, 2mm, 2.5mm, 3mm, 3.2mm, 4mm, 4.8mm, 5mm, 6mm, 7mm, 8mm, etc.

The collection light channels 12 are spaced apart from the squib 10 and are used to mount the photoelectric device 20. The squib 10 includes a tubular body 13 and at least one collection channel tube 14 partially protruding from the surface of the body 13, the inner space of the body 13 forms a flame hole 11, and the collection light channel 12 extends from the end of the collection channel tube 14 to the flame hole 11. The outer profile of the section of the tube body part 13 is circular, rectangular or other polygonal structures, and the fire leading hole 11 is circular. Alternatively, the axis of the pilot hole 11 is located in the central region of the pipe body 13. Alternatively, the outer peripheral wall of the body portion 13 is provided with a mounting structure, for example, the outer peripheral wall of the body portion 13 is provided with a step structure, a flat surface or a groove structure to define the mounting position and angle of the body portion 13.

The collecting channel tube 14 is cantilevered and protrudes from the outer peripheral wall of the tube body 13 to reduce the wall thickness of the tube body 13 and keep the distance between the photoelectric device 20 and the axis of the fire guiding hole 11 to meet the detection requirement, thereby avoiding light interference. Optionally, four collection channel tubes 14 are provided, and the projection of two adjacent collection channel tubes 14 on a plane perpendicular to the axis of the fire hole 11 is ninety degrees, so that each photoelectric device 20 is at a different detection angle detection firing height, and the detection angle is comprehensive. Optionally, the collection channel tube 14 is integrally formed with the tube body portion 13, and both are of an integral structure. Optionally, the collection channel tube 14 is removably connected to the body portion 13, e.g., the collection channel tube 14 is plugged into the body portion 13.

It is worth mentioning that the length and aperture of the collection light channel 12 are used to adjust the sensitivity of lighting, wherein, when the collection channel tube 14 is in a slender structure, the size of the collection light channel 12 is small, and then the light entering the collection light channel 12 from the fire guiding hole 11 is concentrated and converged to the photosensitive area of the photoelectric device 20, thereby improving the detection precision. When the size of the collection light channel 12 is increased, the light entering the collection light channel 12 from the fire guide hole 11 is increased, the detection light emitting range is increased, and the sensing range can be enlarged.

Further, the squib 10 further includes a fixing tube 30 installed at the collecting channel tube 14, and the photoelectric device 20 is inserted into the fixing tube 30. The fixed tube 30 is a tubular structure, and is sleeved on the collection channel tube 14. It can prolong the size of the collection channel tube 14 and improve the installation convenience of the photoelectric device 20. Optionally, the fixing tube 30 is sleeved and connected to the collection channel tube 14 so as to fix the two into a whole. Optionally, the stationary tube 30 is helically connected to the collection channel tube 14. Optionally, the stationary tube 30 is plug-connected to the collection channel tube 14. The fixing tube 30 is used for connecting the optoelectronic device, and the structure and the size of the fixing tube can be set according to the packaging size of the optoelectronic device 20.

In one embodiment, the optoelectronic device 20 includes a photosensitive medium 23, optoelectronic device pins 21 connected to the photosensitive medium 23, and a protector 22 covering the photosensitive medium 23, wherein the protector 22 is inserted into the light collecting channel 12. The protective body 22 is made of transparent material, and the photosensitive medium 23 is positioned in the protective body 22, so that the working stability is high. The protective body 22 can guide the light to converge to the photosensitive medium 23, and the light converging effect is good. Moreover, the region of the protection body 22 exposed out of the light collecting channel 12 is coated or made of opaque material, so that the light exposure and the interference of external light are avoided, and the detection accuracy is high.

In order to facilitate the installation of the optoelectronic device 20, the protective body 22 includes a positioning portion 221 and a light-collecting portion 222 protruding the positioning portion 221, the light-collecting portion 222 is inserted into the collecting light channel 12, and the positioning portion 221 closes the opening of the collecting light channel 12. The positioning portion 221 and the light-focusing portion 222 are in a step structure, the light-focusing portion 222 is made of a transparent material, and the positioning portion 221 may be made of an opaque material or a non-opaque material. The light-gathering part 222 is inserted into the light-collecting channel 12, so that the photosensitive medium 23 can output an electric signal according to the light in the light-collecting channel 12, the ignition height is determined, and the detection accuracy is high.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the protection scope of the present application. Other structures and principles are the same as those of the prior art, and are not described in detail herein.

Claims

1. An apparatus for measuring flame height using a straight tube, comprising:

2. The apparatus according to claim 1, wherein the collection light passage is provided in two or more numbers, and the collection light passages are spaced apart from each other in the axial direction of the flame guide hole.

3. The apparatus according to claim 2, wherein the axis of the collecting light channel is perpendicular to the axis of the flame-guiding hole, and projections of two adjacent collecting light channels on a plane perpendicular to the axis of the flame-guiding hole are offset from each other.

4. The device for measuring the flame height by using the straight pipe according to claim 2, wherein the two or more of the light collecting channels are distributed equidistantly, and the minimum distance between the center lines of the two adjacent light collecting channels is A, wherein A is not less than 0.1mm and not more than 10 mm.

5. The device for measuring the height of flame by using the straight pipe as claimed in claim 2, wherein the minimum dimension of the central line of the first collecting light channel from the ignition end face of the squib is H, wherein H is more than or equal to 0.5mm and less than or equal to 8 mm.

6. The device for measuring the flame height by using the straight pipe as claimed in claim 2, wherein the diameter of the flame-guiding hole is set to D, wherein D is 3mm or more and 10mm or less.

7. The apparatus according to any one of claims 1 to 6, wherein the squib comprises a tubular body part having a tubular shape and at least one collecting channel tube partially protruding from a surface of the tubular body part, an inner space of the tubular body part constituting the pilot hole, and the collecting light channel extending from an end of the collecting channel tube to an inner edge of the pilot hole.

8. The apparatus of claim 7, wherein the squib further comprises a fixing tube installed at the collecting channel tube, and the photoelectric device is inserted into the fixing tube.

9. The apparatus of claim 1, wherein the squib is made of a wear-resistant, light-proof, smooth, high temperature-resistant material.

10. The apparatus of claim 1, wherein the optoelectronic device comprises one or more of a photocell, a photomultiplier, a photoresistor, a photodiode, a phototriode, a photocell, and a photocoupler.