CN213207923U - Micro-oil ignition ultraviolet flame detection light guide device for boiler of thermal power plant - Google Patents
Micro-oil ignition ultraviolet flame detection light guide device for boiler of thermal power plant Download PDFInfo
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- CN213207923U CN213207923U CN202021874726.5U CN202021874726U CN213207923U CN 213207923 U CN213207923 U CN 213207923U CN 202021874726 U CN202021874726 U CN 202021874726U CN 213207923 U CN213207923 U CN 213207923U
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- guide pipe
- cooling air
- air guide
- light guide
- ultraviolet
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Abstract
The utility model relates to a little oil of boiler of thermal power plant ignition ultraviolet flame detects leaded light device, its technical characterstic is: the ultraviolet detector connecting piece is arranged at the rear end of the cooling air guide pipe, the light guide pipe is axially arranged in the center of the cooling air guide pipe, the rear end of the light guide pipe is in butt joint with the ultraviolet detector, a gap is reserved between the guide pipe and the cooling air guide pipe, a high-temperature-resistant quartz plate is arranged at the front end of the light guide pipe and connected with the flyback air ring with the air guide groove, and the flyback air ring with the air guide groove is arranged on the inner wall of the cooling air guide pipe through a three-claw air guide support. The utility model relates to a rationally, install it at ultraviolet flame detector front end, make tiny-oil ignition ultraviolet flame detector can install outside the stove to keep away from the high temperature heat source, avoid the possibility that tiny-oil ignition ultraviolet flame detector burns out.
Description
Technical Field
The utility model belongs to the technical field of the boiler burning, especially, little oil of boiler of thermal power plant ignites ultraviolet flame and detects leaded light device.
Background
The tiny oil point of the boiler of the thermal power plant needs to detect the flame intensity, and the tiny oil ignition ultraviolet flame detection device is one of important components in a boiler combustion protection system. Under the working conditions that the boiler is ignited by using tiny oil and combustion is supported by throwing tiny oil, the detection device can effectively detect the flame combustion condition in the boiler.
The heat-resistant temperature of the tiny-oil ignition ultraviolet flame detection device is-18-105 ℃, but the installation position of the tiny-oil ignition ultraviolet flame detection device is located near the flame combustion area of a tiny-oil gun, the temperature of a detection area exceeds the tolerance temperature, and the cooling mode has some problems, so that the tiny-oil ignition ultraviolet flame detection signal is unstable, and a tiny-oil ignition ultraviolet flame detector is often burnt, so that under the working condition that a tiny-oil ignition system is put into operation, the tiny-oil ignition ultraviolet flame detection signal is unstable or the flame detector is burnt, the tiny-oil ignition failure is caused sometimes, and the safe and stable operation of a boiler of a thermal power plant is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough of prior art, provide a little oil of thermal power plant's boiler ignition ultraviolet ray flame detection leaded light device of safety and stability, accuracy reliable and convenient to use.
The utility model provides a its technical problem take following technical scheme to realize:
the ultraviolet flame detection light guide device comprises a light guide pipe, a cooling air guide pipe, an ultraviolet detector connecting piece and a flyback air ring with an air guide groove, wherein the ultraviolet detector connecting piece is installed at the rear end of the cooling air guide pipe and used for connecting an ultraviolet detector, the light guide pipe is axially installed in the center of the cooling air guide pipe, the rear end of the light guide pipe is in butt joint with the ultraviolet detector, a gap is reserved between the guide pipe and the cooling air guide pipe, a high-temperature-resistant quartz plate is installed at the front end of the light guide pipe and connected with the flyback air ring with the air guide groove, the flyback air ring with the air guide groove is installed on the inner wall of the cooling air guide pipe through a three-jaw air guide support, and a cooling air inlet guide pipe is radially arranged on the outer wall of the cooling air guide pipe and used for introducing cooling air into the cooling air guide pipe.
The ultraviolet detector connecting piece is connected with the cooling air guide pipe and the ultraviolet detector in a threaded mode.
The front end of the cooling air guide pipe is of a necking reducing structure.
The light guide pipe is made of high-temperature-resistant and bright metal materials.
The clearance between the light guide pipe and the cooling air guide pipe is 3 mm.
The utility model has the advantages that:
1. the utility model discloses install at tiny-oil ignition ultraviolet flame detector front end, with tiny-oil gun burning flame's ultraviolet flame light guide in the tiny-oil ignition ultraviolet flame detector, make tiny-oil ignition ultraviolet flame detector can install outside the stove to keep away from the high temperature heat source, under the condition of boiler normal operating, avoid the possibility that tiny-oil ignition ultraviolet flame detector burns out.
2. The utility model discloses a get into oil gas, buggy, steam etc. and cause the pollution corrosion in preventing the leaded light device, install the high temperature resistant quartz lens of visual ultraviolet light additional at the leaded light device front end, prevented that oil gas, buggy, steam etc. from causing the pollution corrosion to the leaded light device.
3. The utility model discloses do the reducing at cooling air pipe front end 10cm department and handle, make leaded light device and the little oil gun combustion flame's that is surveyed rigidity.
4. The utility model discloses at cooling air pipe reducing department assembly three-jaw wind-guiding support, make to have the 3mm clearance to strengthen the circulation of the cooling air of being convenient for between cooling air pipe and the light pipe, do benefit to leaded light lens and leaded light device's cooling.
5. The utility model discloses install the flyback wind ring that has the guide duct additional at leaded light lens front end, utilize flyback wind to carry out incessant cleaning, cooling to the lens, and have certain isolation to oil gas, buggy, steam etc..
Drawings
FIG. 1 is a block diagram of the present invention;
the system comprises a high-temperature-resistant quartz lens 1, a light guide pipe 2, a cooling air inlet pipe 3, an ultraviolet detector 4, an ultraviolet detector 5, a cooling air guide pipe 6, a flyback air ring 7 and a three-jaw air guide support 8.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
A tiny-oil ignition ultraviolet flame detection light guide device of a boiler in a thermal power plant comprises a light guide pipe 2, a cooling air guide pipe 6, an ultraviolet detector connecting piece 4 and a flyback air ring 7 with an air guide groove, wherein the flyback air ring is shown in figure 1. The ultraviolet detector connecting piece 4 is arranged at the rear end of the cooling air guide pipe 6 and is arranged together with the ultraviolet detector 5 through the ultraviolet detector connecting piece 4, and the ultraviolet detector connecting piece 4 is connected with the cooling air guide pipe 6 and the ultraviolet detector 5 in a threaded mode. The light guide pipe 2 is axially arranged at the center of the cooling air guide pipe 6, the rear end of the cooling air guide pipe is in butt joint with the ultraviolet detector 5 to realize the light guide function of the ultraviolet detector, the high-temperature-resistant quartz plate 1 is arranged at the front end of the light guide pipe 2, and the light guide pipe can be prevented from being polluted to influence the light guide effect. This high temperature resistant quartz plate 1 is connected with the flyback wind ring 7 that has the guide duct, and this flyback wind ring 7 is installed on the inner wall of the cooling air pipe 6 of leaded light 2 front end through three-jaw wind guide support 8, and this structure makes and has 3mm clearance between cooling air pipe and the leaded light pipe, and the circulation of the cooling air of being convenient for does benefit to leaded light lens and leaded light device's cooling. The front end of the cooling air duct 6 is in a necking reducing structure at the position of 10cm, so that the light guide device is fixed with the position of the flame of the tested micro-oil gun. A cooling air inlet duct 3 is formed radially on the outer wall of the cooling air duct 6 for introducing cooling air into the cooling air duct.
In this embodiment, the light pipe is made of a high temperature resistant and bright metal material.
The utility model discloses install between flame and flame signal detection device, establish a more reasonable connection and light signal conduction mode, solve the inaccurate problem that has been destroyed by high temperature with flame signal transmission detection device. The light guide device is used for extending flame signals in the hearth to a principle high-temperature area, and the signal detection equipment is prevented from being damaged by high temperature while the flame signals are prevented from being attenuated. The high-temperature resistant quartz lens is arranged on the outer side of the light guide pipe, so that the light guide pipe is prevented from being polluted to influence the light guide effect. Meanwhile, the mechanical structure design of the reducing of the cooling air guide pipe is matched with the three-jaw air guide support and the flyback air ring, so that the position of the light guide device can be fixed, and meanwhile, the light guide device and the quartz lens can be cooled, cleaned and swept by air.
The utility model discloses a use method does:
(1) after tiny oil in a boiler furnace is ignited to generate flame, light signals generated by flame combustion enter a light guide pipe through a high-temperature-resistant quartz lens. The high-temperature resistant quartz lens is fixed on one side of the light guide pipe extending into the hearth by utilizing a detachable flyback air ring with an air guide groove. The high-temperature resistant quartz lens can prevent oil gas, coal powder, steam and the like from entering the light guide pipe to influence light signal transmission or damage the flame signal detection device under the condition that light can be normally transmitted. The detachable flyback wind ring with the wind guide groove can form a flyback wind lens at the high-temperature resistant quartz lens for continuous sweeping and cooling, and has a certain isolation effect on oil gas, coal powder, steam and the like. Meanwhile, due to the detachable design, the lens can be replaced when damaged under special conditions, and the normal work of the whole light guide device is not influenced.
(2) The light signal of the flame is further transmitted through the light pipe. Light can propagate therein with minimal loss. The light pipe has certain length, can cause the light signal of flame burning outside the furnace, makes the flame detection device who keeps away from the furnace side at the light pipe keep a certain distance with the furnace of high temperature, avoids high temperature to flame detection device's influence. Meanwhile, as the gap of 3mm is formed between the light guide pipe and the cooling air guide pipe, cooling air is introduced between the light guide pipe and the cooling air guide pipe to cool the light guide cylinder and the light guide lens, and the service life of the equipment is prolonged. Meanwhile, the diameter changing treatment is carried out at the 10cm position of the front section of the outer sleeve, the flow speed of cooling air is increased while the light guide pipe is fixed, and the cooling air is matched with a flyback air ring to form back-sweeping air, so that the effect of cleaning the front section of the light guide pipe and the light guide lens is achieved.
(3) In order to ensure that light can enter the flame detection device for detection after being led out from the light guide pipe, the tail part of the light guide pipe is connected with a probe of the flame detection device by using a connecting piece. The connecting piece is connected with the cooling air guide pipe in a threaded mode, so that the cooling air can be prevented from leaking, and the connecting piece can be matched with the tail position adjusting ring of the light guide pipe to fix the position of the light guide pipe in the cooling air guide pipe. The other side of the connecting piece is connected with the probe of the flame detection device by threads, so that the optical signal led out by the light guide pipe can be ensured to completely enter the flame detection device for detection, and the accuracy of the detection signal is ensured.
It should be emphasized that the embodiments described herein are illustrative and not restrictive, and thus the present invention includes but is not limited to the embodiments described in the detailed description, as well as other embodiments derived from the technical solutions of the present invention by those skilled in the art, which also belong to the scope of the present invention.
Claims (5)
1. The utility model provides a little oil of boiler of thermal power plant ignition ultraviolet ray flame detects leaded light device which characterized in that: the ultraviolet detector connecting piece is arranged at the rear end of the cooling air guide pipe and used for being connected with an ultraviolet detector, the light guide pipe is axially arranged in the center of the cooling air guide pipe, the rear end of the light guide pipe is in butt joint with the ultraviolet detector, a gap is reserved between the guide pipe and the cooling air guide pipe, a high-temperature-resistant quartz plate is arranged at the front end of the light guide pipe and connected with the flyback air ring with the air guide groove, the flyback air ring with the air guide groove is arranged on the inner wall of the cooling air guide pipe through a three-claw air guide support, and a cooling air inlet guide pipe is radially arranged on the outer wall of the cooling air guide pipe and used for introducing cooling air into the cooling air guide pipe.
2. The micro-oil ignition ultraviolet flame detection light guide device of the boiler of the thermal power plant as claimed in claim 1, wherein: the ultraviolet detector connecting piece is connected with the cooling air guide pipe and the ultraviolet detector in a threaded mode.
3. The micro-oil ignition ultraviolet flame detection light guide device of the boiler of the thermal power plant as claimed in claim 1, wherein: the front end of the cooling air guide pipe is of a necking reducing structure.
4. The micro-oil ignition ultraviolet flame detection light guide device of the boiler of the thermal power plant as claimed in claim 1, wherein: the light guide pipe is made of high-temperature-resistant and bright metal materials.
5. The micro-oil ignition ultraviolet flame detection light guide device of the boiler of the thermal power plant as claimed in claim 1, wherein: the clearance between the light guide pipe and the cooling air guide pipe is 3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021874726.5U CN213207923U (en) | 2020-09-01 | 2020-09-01 | Micro-oil ignition ultraviolet flame detection light guide device for boiler of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021874726.5U CN213207923U (en) | 2020-09-01 | 2020-09-01 | Micro-oil ignition ultraviolet flame detection light guide device for boiler of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213207923U true CN213207923U (en) | 2021-05-14 |
Family
ID=75843158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021874726.5U Active CN213207923U (en) | 2020-09-01 | 2020-09-01 | Micro-oil ignition ultraviolet flame detection light guide device for boiler of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213207923U (en) |
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2020
- 2020-09-01 CN CN202021874726.5U patent/CN213207923U/en active Active
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