High-sensitivity flame detection device

Abstract

The invention relates to the field of flame detection, and discloses a high-sensitivity flame detection device which is characterized in that a quartz glass cover is rotationally connected to a shell, a driving part is arranged at the end, close to the shell, of the quartz glass cover, the driving part is in linkage with an air guide fan, the air guide fan is used for driving the driving part to rotate, and the driving part rotates to drive the quartz glass cover to rotate; the shell is provided with a removing part tangent to the quartz glass cover, the quartz glass cover rotates relative to the removing part, and the removing part is used for adsorbing and collecting dust particles on the quartz glass cover; the quartz glass cover is rotationally connected to the end of the shell, the driving part rotates to drive the quartz glass cover to rotate, the quartz glass cover makes full contact with the removing part and rubs against the removing part in the rotating process, static electricity is generated on the surface of the removing part in the friction process, and dust particles on the surface of the quartz glass cover can be adsorbed by the static electricity; therefore, the purpose of removing dust particles on the surface of the quartz cover can be achieved, and the sensing sensitivity of the quartz lens and the flame sensor to flame is not affected.

Description

Technical Field

[0001] The present invention relates to the field of flame detection, and particularly to a highly sensitive flame detection device. Background Art

[0002] A flame detection device is a device used to detect flames, which is widely used in fire alarm systems, industrial safety monitoring, and fire prevention in specific places. According to different technical principles and application scenarios, flame detection devices can be divided into various types, including ultraviolet flame detectors, infrared flame detectors, ultraviolet / infrared hybrid detectors, etc.

[0003] The Chinese invention patent with the authorization announcement number CN119436203A discloses a flame detector, which includes a housing. Inside the housing, there are a flame sensor, a power supply component, and a circuit board. At the end of the housing, there is a quartz glass cover, and inside the quartz glass cover, there is a quartz lens. The flame is photographed by the quartz lens through the quartz glass cover, and then detected by the flame sensor and converted into an electrical signal and transmitted to the circuit board. The circuit board gives feedback according to the set program. A cooling cavity and an induction component are provided on the outer circle of the housing. The housing is also equipped with a blower, and the blower is connected to the cooling cavity. The induction component senses according to the change of temperature and cools through the cooling cavity.

[0004] However, during the process of flame combustion, a large amount of dust will adhere to the quartz glass cover and is difficult to remove, which affects the detection sensitivity of the quartz lens and the flame sensor. In addition, when a large amount of dust adheres to the surface of the quartz glass cover, the dust will absorb and store heat, resulting in a sharp increase in the surface temperature of the glass cover, further causing a sharp increase in the internal temperature of the device, and easily damaging the circuit board and power supply component inside the device. Summary of the Invention

[0005] The present invention aims to provide a highly sensitive flame detection device to solve the problem that the glass cover adsorbs dust and blocks the quartz lens, thereby reducing the flame detection sensitivity.

[0006] To achieve the above object, the present invention adopts the following technical solution: A highly sensitive flame detection device, wherein the quartz glass cover is rotationally connected to the housing. A driving member is provided at the end of the quartz glass cover close to the housing, and the driving member is linked with the blower. The blower is used to rotate the driving member, and the rotation of the driving member drives the quartz glass cover to rotate. A cleaning member tangent to the quartz glass cover is installed on the housing, and the quartz glass cover rotates relative to the cleaning member. The cleaning member is used to adsorb and collect dust particles on the quartz glass cover.

[0007] The beneficial effects of this solution are as follows: The driving component is a component that rotates by wind power. Since the quartz glass cover is rotatably connected to the end of the housing, the air blower pumps air into the cooling cavity and blows it towards the driving component through the air outlet. The driving component rotates to drive the quartz glass cover to rotate. During the rotation of the quartz glass cover, it comes into full contact with the cleaning component and rubs against each other. Static electricity is generated on the surface of the cleaning component during the friction process, and the static electricity will adsorb the dust particles on the surface of the quartz glass cover. Therefore, the purpose of removing the dust particles on the surface of the quartz cover can be achieved, so as not to affect the sensitivity of the quartz lens and the flame sensor to the flame.

[0008] Furthermore, a driving disk is fixed to the end of the quartz glass cover close to the housing. The driving disk includes a connecting ring fixedly connected to the quartz glass cover and a driving ring rotatably connected to the housing. A driving groove is formed between the connecting ring and the driving ring of the driving disk, and the driving component is fixedly arranged in the driving groove, and the air outlet is opened towards the driving groove.

[0009] The beneficial effects of this solution are as follows: Both ends of the driving disk are connected to the housing and the quartz glass cover respectively, and the driving ring is rotatably connected to the end of the housing, so that the quartz glass cover is rotatably connected to the housing. By setting the driving groove and arranging the driving component in the driving groove, the wind divergence can be effectively prevented, and the driving component can efficiently rotate by means of wind power.

[0010] Furthermore, an installation ring is fixed to the end of the housing, and the driving ring is rotatably connected to the installation ring.

[0011] The beneficial effects of this solution are as follows: By setting the installation ring and rotatably connecting the driving ring to the installation ring, the purpose of rotatably connecting the quartz glass cover to the housing can be achieved.

[0012] Furthermore, the cleaning component is movably connected to the installation ring, and the end of the cleaning component extends into the cooling cavity.

[0013] The beneficial effects of this solution are as follows: The end of the cleaning component extends into the cooling cavity, and the air blower pumps external air into the cooling cavity. The gas flow rate in the cooling cavity is relatively large, and the end of the cleaning component vibrates continuously under the action of the wind, which can drive the entire cleaning component to vibrate, so that the dust particles adsorbed on the cleaning component can fall better under the effective vibration, enabling the cleaning component to be used for a long time without replacement, saving costs at the same time, and eliminating the need for manual frequent cleaning of the dust adsorbed on the cleaning component.

[0014] Furthermore, the installation ring is provided with a swinging opening for the cleaning component to swing, the cleaning component is hinged to the swinging opening, and an elastic member is connected between the cleaning component and the swinging opening.

[0015] The beneficial effects of this solution are as follows: The cleaning member passes through the swinging opening and is hinged at the swinging opening by the flowing air in the cooling cavity. When the cleaning member is affected by wind force and vibrates, it will rotate slightly at the swinging opening. Under the action of the elastic member, the cleaning member can achieve a reciprocating swinging motion, so as to achieve the purpose of continuous vibration of the cleaning member on the mounting ring.

[0016] Furthermore, the cleaning member includes an adsorbing part tangent to the quartz glass cover and a collecting shell for collecting dust particles. The adsorbing part is detachably connected to the collecting shell.

[0017] Furthermore, the adsorbing part is provided with a number of through holes for dust particles to pass through, and the through holes are communicated with the inner cavity of the collecting shell.

[0018] The beneficial effects of this solution are as follows: By setting through holes on the adsorbing part, dust particles pass through the through holes on the adsorbing part under the overall vibration of the cleaning member and enter the inner cavity of the collecting shell to be collected, so that the surface of the adsorbing part is automatically cleaned. Since there is no relative rotation between the quartz glass cover and the cleaning member after the quartz glass cover stops rotating, there is also no relative rotation between the adsorbing part and the quartz glass cover, and there is no frictional force between the adsorbing part and the quartz glass cover. Therefore, the static electricity on the surface of the adsorbing part disappears, resulting in the free falling of the dust electrostatically adsorbed on the surface of the adsorbing part into the air, and being blown by the hot air of the external flame and adhering to the quartz glass cover again, which further affects the detection sensitivity of the flame sensor and the quartz lens to the flame. Therefore, after setting the collecting shell and vibrating it, this phenomenon can be effectively prevented.

[0019] In addition, after vibration, the cleaning member can avoid continuous friction with the surface of the quartz glass cover, thereby slowing down the speed of change of the surface roughness of the quartz glass cover, prolonging the service life of the quartz glass cover, further saving the investment funds, and achieving economy. During the vibration of the cleaning member, the adsorbing part and the quartz glass cover are indirectly friction and vibrate. The intermittent friction will make the surface of the adsorbing part continuously carry static electricity. Therefore, during the rotation of the quartz glass cover, even if the adsorbing part is not in contact with the quartz glass cover, it will electrostatically adsorb the dust particles on its surface, and further collect them in the inner cavity of the collecting shell during the vibration process.

[0020] Furthermore, a photovoltaic panel and a light inlet are arranged in the collecting shell, and a dust collecting plate is also arranged. The dust collecting plate is electrically connected to the photovoltaic panel.

[0021] The beneficial effects of this solution are as follows: During the process of flame combustion, the photovoltaic panel charges through the light inlet and charges the dust collecting plate. The dust collecting plate is connected to the photovoltaic panel and is charged with high-voltage static electricity. During the vibration of the cleaning component, dust particles enter the inner cavity of the collecting shell through the through holes, and are positively charged under the magnetic field in the inner cavity of the collecting shell, so that they are quickly adsorbed onto the dust collecting plate, which can ensure that the dust is completely adsorbed from the adsorbing component onto the dust collecting plate, thereby effectively preventing the dust from being shaken off.

[0022] Furthermore, the outer surface of the quartz glass cover is set to be smooth, and the adsorbing component is made of a high-temperature-resistant electrostatic adsorption material.

[0023] The beneficial effects of this solution are as follows: By setting the surface of the quartz glass cover to be smooth, the static electricity characteristics of the quartz glass cover itself can be effectively reduced. Then, by using a high-temperature-resistant electrostatic adsorption material for the adsorbing component, when the quartz glass cover and the adsorbing component rub against each other, it is ensured that the electrostatic adsorption characteristics on the surface of the adsorbing component are greater than the electrostatic adsorption characteristics on the surface of the quartz glass cover, so as to ensure that the dust on the quartz glass cover can be effectively adsorbed by the adsorbing component and completely removed from the quartz glass cover, increasing the detection sensitivity of the quartz lens and the flame sensor to the flame.

[0024] Furthermore, the driving component is set as a number of fan blades fixed in the driving groove.

[0025] The beneficial effects of this solution are as follows: A number of fan blades are fixed in the driving groove at a specific angle. The air in the cooling cavity is blown out from the air outlet by the blower and is directed at a number of fan blades in the driving groove. Through the interaction with the fan blades, the wind force makes the fan blades rotate. When the fan blades rotate, the entire quartz glass cover is driven to rotate on the housing, thereby achieving the purpose of the linkage between the air guide fan and the driving component. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0027] Figure 2 is a schematic diagram of the sectional structure of the overall structure of an embodiment of the present invention;

[0028] Figure 3 is a schematic diagram of the overall mechanism of the quartz glass cover of an embodiment of the present invention;

[0029] Figure 4 is an embodiment of the present invention Figure 3 is a schematic diagram of the local structure where the cleaning component is connected to the driving ring at the swinging port in the embodiment;

[0030] Figure 5 is an embodiment of the present invention Figure 3 is a schematic diagram of the sectional structure of the local structure of the interior of the collecting shell of the cleaning component and the adsorbing component connected thereto in the embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following is a further detailed description through specific embodiments:

[0032] The reference numerals in the accompanying drawings of the specification include: housing 1, cooling chamber 11, air outlet 111, air guiding fan 12, detection assembly 13, mounting ring 14, swinging opening 141, torsion spring 142, quartz glass cover 2, driving disk 21, driving ring 211, connecting ring 212, driving groove 213, fan blades 2131, cleaning member 3, adsorbing member 31, through hole 311, collecting housing 32, photovoltaic panel 321, light inlet 322, dust collecting plate 323.

[0033] Embodiment

[0034] A highly sensitive flame detection device, as Figures 1 - 5 shown, includes a housing 1. The housing 1 is arranged in a cylindrical shape. A cooling chamber 11 for cooling the interior of the housing 1 is provided on the outer circle of the housing 1. An air guiding fan 12 is installed at the bottom end of the housing 1. The input end of the air guiding fan 12 is connected to the outside, and the output end of the air guiding fan 12 is communicated with the cooling chamber 11. A battery panel is arranged inside the housing 1, and a detection assembly 13 is also provided. The detection assembly 13 includes a quartz lens and a flame sensor for detecting flames. The flame sensor is connected to the battery panel. A mounting ring 14 is fixedly connected to the end of the housing 1. The mounting ring 14 is provided with a swinging opening 141. A hinge shaft is fixed at the mounting ring 14 at the swinging opening 141. A cleaning member 3 is rotatably connected to the mounting ring 14 at the hinge shaft. An elastic member is connected between the cleaning member 3 and the mounting ring 14. The elastic member is set as a torsion spring 142. A right-angled folding edge is fixedly provided at the end of the cleaning member 3 close to the housing 1. A connecting hole is provided at the housing 1 at the right-angled folding edge. The right-angled folding edge passes through the connecting hole and extends into the cooling chamber 11.

[0035] As Figures 1 - 5 shown, it further includes a quartz glass cover 2. The outer surface of the quartz glass cover 2 is smoothly arranged. A driving disk 21 is provided at the end of the quartz glass cover 2 close to the housing 1. The driving disk 21 includes a driving ring 211 at one end close to the housing 1. The outer circle of the driving ring 211 is rotatably connected to the inner circle of the mounting ring 14. A sealing bearing is connected between the outer circle of the driving ring 211 and the inner circle of the mounting ring 14. A connecting ring 212 is fixedly connected to the end of the driving disk 21 away from the housing 1. The connecting ring 212 is fixedly connected to the quartz glass cover 2. An annular driving groove 213 is fixedly provided between the connecting ring 212 and the driving ring 211. A driving member is fixedly connected in the driving groove 213. The driving member is set as a plurality of fan blades 2131 fixedly connected in the driving groove 213. The fan blades 2131 are arranged at a fixed angle along the tangent circle of the driving groove 213 in the driving groove 213. The opening direction of the air outlet 111 of the cooling chamber 11 faces the driving groove 213 and is inclined with respect to the driving groove 213.

[0036] As Figures 1 - 5As shown, one end of the cleaning member 3 away from the right-angled fold is L-shaped. The cleaning member 3 is tangent to both the cylindrical surface and the end face of the quartz glass cover 2. The cleaning member 3 includes a collection shell 32 and an adsorption member 31. The adsorption member 31 is arranged in a plate shape and is provided with a number of through holes 311. The adsorption member 31 is tangent to both the cylindrical surface and the end face of the quartz glass cover 2. Clamping plates are fixed on both sides of the adsorption member 31. Corresponding slots are provided on both sides of the collection shell 32 for the clamping plates of the adsorption member 31. During installation, the clamping plates are snapped into the slots to achieve the fixed connection between the adsorption member 31 and the collection shell 32. During disassembly, only the clamping plates need to be pulled out of the slots. The through holes 311 are communicated with the inner cavity of the collection shell 32. The material of the adsorption member 31 is a high-temperature electrostatic adsorption material, preferably quartz glass fiber material. A photovoltaic panel 321 and a dust collection plate 323 are installed in the collection shell 32. The collection shell 32 is provided with a light inlet 322. The flame combustion passes through the light inlet 322 to charge the photovoltaic panel 321. The photovoltaic panel 321 is electrically connected to the dust collection plate 323. The dust collection plate 323 is charged with high-voltage static electricity under the action of the photovoltaic panel 321. There is a high-voltage static electromagnetic field in the inner cavity of the collection shell 32.

[0037] Its working principle is as follows: During the flame combustion process, the temperature inside the housing 1 continuously increases and triggers the induction switch. The induction switch controls the operation of the air blower 12 through the circuit board. The air blower 12 pumps air into the cooling chamber 11 and blows it through the air outlet 111 towards a number of fan blades 2131 located in the driving groove 213. The air outlet 111 of the cooling chamber 11 is arranged facing the opening of the driving groove 213, and the air in the cooling chamber 11 is blown into the driving groove 213, which can effectively prevent the wind from spreading. Thus, the fan blades 2131 can effectively rotate by means of the wind force. The rotation of the driving member drives the quartz glass cover 2 to rotate. During the rotation of the quartz glass cover 2, it comes into full contact with the cleaning member 3 and rubs against each other. During the rubbing process, static electricity is generated on the surface of the cleaning member 3, and the static electricity will adsorb the dust particles on the surface of the quartz glass cover 2. Therefore, the purpose of removing the dust particles on the surface of the quartz cover can be achieved, so as not to affect the sensitivity of the quartz lens and the flame sensor to the perception of the flame.

[0038] The end of the cleaning member 3 extends into the cooling chamber 11. The air guiding fan 12 sucks external air into the cooling chamber 11. The gas flow rate in the cooling chamber 11 is relatively large. The right-angled fold of the cleaning member 3 swings under the action of the wind in the cooling chamber 11. The right-angled fold drives the entire cleaning member 3 to rotate at the swinging port 141, and under the action of the torsion spring 142, the cleaning member 3 continuously swings at the swinging port 141. During the continuous swinging of the cleaning member 3, it repeatedly collides slightly between the housing 1 and the quartz glass cover 2, achieving a vibration effect during the collision, so that the dust particles adsorbed on the cleaning member 3 fall better under the effective vibration. The dust enters the inner cavity of the collection shell 32 through the through hole 311 on the adsorbing member 31. Since the light inlet 322 is provided on the collection shell 32, the light of the flame combustion enters the inside of the collection shell 32 through the light inlet 322 and acts on the photovoltaic panel 321 to charge the photovoltaic panel 321. Since the photovoltaic panel 321 is electrically connected to the dust collection plate 323, the charged photovoltaic panel 321 supplies power to the dust collection plate 323 to make the dust collection plate 323 carry high-voltage static electricity. Therefore, after the dust enters the inner cavity of the collection shell 32, it is positively charged under the action of the electric field and is quickly adsorbed by the dust collection plate 323, automatically cleaning the surface of the adsorbing member 31.

[0039] Since there is no relative rotation between the quartz glass cover 2 and the cleaning member 3 after the quartz glass cover 2 stops rotating, there is also no relative rotation between the adsorbing member 31 and the quartz glass cover 2, and there is no frictional force between the adsorbing member 31 and the quartz glass cover 2. Therefore, the static electricity on the surface of the adsorbing member 31 disappears, resulting in the free fall of the dust electrostatically adsorbed on the surface of the adsorbing member 31, thus entering the air and being blown by the hot air of the external flame and adhering to the quartz glass cover 2 again, further affecting the detection sensitivity of the flame sensor and the quartz lens to the flame. Therefore, after setting the collection shell 32 and vibrating it, this phenomenon can be effectively prevented. At the same time, it also enables the cleaning member 3 to be used for a long time without replacement, saves costs, and does not require manual cleaning of the dust adsorbed on the cleaning member 3 frequently.

[0040] After vibration, the cleaning member 3 can avoid continuous friction with the surface of the quartz glass cover 2, thereby slowing down the speed of change of the surface roughness of the quartz glass cover 2, extending the service life of the quartz glass cover 2, further saving investment funds, and realizing economy. During the vibration of the cleaning member 3, the adsorbing member 31 and the quartz glass cover 2 are intermittently rubbed and vibrated. The intermittent friction will make the surface of the adsorbing member 31 continuously carry static electricity. Therefore, during the rotation of the quartz glass cover 2, even if the adsorbing member 31 does not contact the quartz glass cover 2, it will electrostatically adsorb the dust particles on its surface and further collect them in the inner cavity of the collection shell 32 during the vibration process.

[0041] By setting the surface of the quartz glass cover 2 to be smooth, the electrostatic characteristics of the quartz glass cover 2 itself can be effectively reduced. Then, by using a high-temperature resistant electrostatic adsorption material for the adsorbent 31, when the quartz glass cover 2 and the adsorbent 31 rub against each other, it is ensured that the electrostatic adsorption characteristics on the surface of the adsorbent 31 are greater than those on the surface of the quartz glass cover 2, so as to ensure that the dust on the quartz glass cover 2 can be effectively adsorbed by the adsorbent 31 and completely removed from the quartz glass cover 2, increasing the detection sensitivity of the quartz lens and the flame sensor to the flame.

[0042] The above are only embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can still be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A highly sensitive flame detection device, characterized in that: The quartz glass cover is rotatably connected to the housing. A driving member is provided at the end of the quartz glass cover close to the housing. The driving member is linked with the air blower. The air blower is used to rotate the driving member, and the rotation of the driving member drives the quartz glass cover to rotate. A cleaning member tangent to the quartz glass cover is installed on the housing. The quartz glass cover rotates relative to the cleaning member. The cleaning member is used to adsorb and collect dust particles on the quartz glass cover.

2. The flame detection device according to claim 1, wherein: A driving disk is fixed at the end of the quartz glass cover close to the housing. The driving disk includes a connecting ring fixedly connected to the quartz glass cover and a driving ring rotatably connected to the housing. A driving groove is formed between the connecting ring and the driving ring of the driving disk. The driving member is fixedly arranged in the driving groove, and the air outlet is opened towards the driving groove.

3. The flame detection device according to claim 2, wherein: An installation ring is fixed at the end of the housing, and the driving ring is rotatably connected to the installation ring.

4. The flame detection device according to claim 3, characterized in that: The cleaning member is movably connected to the installation ring, and the end of the cleaning member extends into the cooling chamber.

5. The flame detection device according to claim 4, characterized in that: The installation ring is provided with a swinging opening for the cleaning member to swing. The cleaning member is hinged to the swinging opening, and an elastic member is connected between the cleaning member and the swinging opening.

6. The flame detection device according to claim 1, characterized in that: The cleaning member includes an adsorbing member tangent to the quartz glass cover and a collecting shell for collecting dust particles. The adsorbing member is detachably connected to the collecting shell.

7. The flame detection device according to claim 6, characterized in that: The adsorbing member is provided with a number of through holes for dust particles to pass through, and the through holes are communicated with the inner cavity of the collecting shell.

8. The flame detection device according to claim 7, characterized in that: A photovoltaic panel and a light inlet are arranged in the collecting shell, and a dust collecting plate is also arranged. The dust collecting plate is electrically connected to the photovoltaic panel.

9. The flame detection device according to claim 6, wherein: The outer surface of the quartz glass cover is smoothly arranged, and the adsorbing member is made of a high-temperature resistant electrostatic adsorption material.

10. The flame detection device according to claim 2, characterized in that: The driving member is set as a number of fan blades fixed in the driving groove.

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