Boiler flame detection device

Abstract

The utility model discloses a boiler flame detection device which comprises a flame detector capable of penetrating into a boiler and further comprises a cleaning shell, an air injection assembly, a rotating assembly and a driving assembly, and the cleaning shell is connected with the boiler; the air injection assembly is arranged on the cleaning shell, partially extends into the cleaning shell, corresponds to the rotating assembly and is used for injecting high-pressure air into the rotating assembly; the rotating assembly is rotationally arranged in the cleaning shell and used for surrounding the flame detector so as to guide the high-pressure gas to the peripheral wall of the flame detector. The driving assembly is arranged on the cleaning shell and connected with the rotating assembly so that the rotating assembly can rotate. The boiler flame detector aims to remove dust on the surface of the flame detector and improve the detection accuracy of boiler flame.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of boiler flame detection, in particular to a boiler flame detection device. BACKGROUND

[0002] The boiler flame detector is an important safety device for monitoring the presence or absence of flame in the boiler. When the boiler flame is accidentally extinguished, the flame detector can detect it in time and send a signal to automatically cut off the fuel supply, prevent the accumulation of fuel in the furnace, and avoid safety accidents such as explosion.

[0003] At present, some boiler flame detectors detect in the boiler for a long time, and the dust and carbon black impurities in the boiler will adhere to the surface of the boiler flame detector, block and scatter the light signals emitted by the flame, weaken the light intensity reaching the photosensitive element, and affect the accuracy of the boiler flame detector in detecting the flame in the boiler. CONTENT OF THE INVENTION

[0004] The purpose of the present application is to provide a boiler flame detection device to solve the problem of reduced accuracy of the existing boiler flame detector after adhering dust on the surface.

[0005] The technical solution of the present application to solve the above technical problems is as follows:

[0006] A boiler flame detection device, comprising a flame detector capable of penetrating into the inside of the boiler, further comprising:

[0007] A cleaning shell connected to the boiler;

[0008] A jet assembly provided in the cleaning shell, the jet assembly partially extends into the cleaning shell and corresponds to the rotating assembly, and is used to spray high-pressure gas into the rotating assembly;

[0009] A rotating assembly rotatably arranged in the inside of the cleaning shell, used to surround the flame detector, and guide the high-pressure gas to the outer peripheral wall of the flame detector; and

[0010] A driving assembly provided in the cleaning shell, the driving assembly is connected to the rotating assembly, and is used to rotate the rotating assembly.

[0011] Further, the jet assembly comprises:

[0012] A pressurized gas pump fixedly connected to the outer wall of the cleaning shell;

[0013] An air passage provided in the inner wall of the cleaning shell in a ring shape, and the inner wall of the air passage is movably and sealingly connected to the rotating assembly; and

[0014] A gas conveying pipe connected to the pressurized gas pump and extending into the air passage.

[0015] Further, the rotating assembly comprises:

[0016] The rotating pipe is connected to the inner wall of the cleaning shell in a rotating manner, and is provided with a plurality of air injection holes spaced along the circumference of the rotating pipe and capable of surrounding the flame detector.

[0017] The mounting ring is fixedly sleeved on the outer circumferential wall of the rotating pipe, and is provided with a plurality of through holes corresponding to the plurality of air injection holes.

[0018] Further, the driving assembly comprises:

[0019] The accommodating pipe is embedded in the cleaning shell.

[0020] The fixed body is located in the interior of the cleaning shell and is fixedly connected to the accommodating pipe, and the fixed body is provided with an air inlet hole communicating with the accommodating pipe.

[0021] The mounting body is located outside the cleaning shell and is fixedly connected to the side of the accommodating pipe away from the fixed body, and the mounting body is provided with an air outlet hole communicating with the accommodating pipe.

[0022] The first gear is fixedly sleeved on the outer wall of the rotating pipe.

[0023] The rotating rod is rotatably embedded in the accommodating pipe, and the portion of the rotating rod located in the accommodating pipe is connected to a plurality of fan blades.

[0024] The second gear is fixedly connected to the rotating rod, and the second gear partially penetrates the outer wall of the cleaning shell and engages the first gear.

[0025] Further, the air inlet hole is funnel-shaped.

[0026] Further, the inner wall of the air outlet hole is threadedly connected to a filter cylinder.

[0027] Further, the air outlet hole is convexly arranged.

[0028] Further, the end face of each end of the cleaning shell is provided with a through hole, the end face of the cleaning shell close to the boiler is provided with a sliding groove extending in the vertical direction, the inner wall of the sliding groove is slidingly connected to a magnet, the magnet extends in the vertical direction and is fixedly connected to a sealing plate, the sealing plate abuts against the end face of the cleaning shell and can block the through hole, and the material of the cleaning shell is a ferromagnetic material.

[0029] Further, the end face of the cleaning shell away from the boiler is fixedly connected to a positioning pipe, and the positioning pipe communicates with the interior of the cleaning shell.

[0030] The outer wall of the flame detector is fixedly sleeved with a mounting cylinder, and the inner wall of the mounting cylinder is threadedly connected to the outer wall of the positioning pipe.

[0031] Compared with the prior art, the technical scheme of the present application has the following beneficial technical effects:

[0032] By running the jetting assembly, high-pressure gas can be introduced into the cleaning shell, and the rotating assembly can jet the high-pressure gas to more parts of the outer peripheral wall of the flame detector, thereby improving the jetting range. Running the driving assembly can drive the rotating assembly to rotate, and the high-pressure gas can be jetted to the outer peripheral wall of the flame detector while the rotating assembly is rotating. The high-pressure gas can be jetted to more parts of the outer peripheral wall of the flame detector, and the jetting angle of the high-pressure gas can be changed, thereby further improving the jetting range of the outer peripheral wall of the flame detector, improving the cleaning effect of dust on the flame detector, ensuring accurate detection of the flame state, ensuring the detection precision, enabling the boiler flame state to be accurately perceived, and reducing potential risks caused by inaccurate flame detection. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the boiler flame detection device of the present application.

[0035] Figure 2 It is a schematic diagram of the internal cross-sectional structure of the boiler flame detection device of the present application after the flame detector is inserted into the boiler.

[0036] Figure 3 It is a schematic diagram of the internal cross-sectional structure of the boiler flame detection device of the present application before the flame detector is inserted into the boiler.

[0037] Figure 4 It is a schematic diagram of the exploded structure of the cleaning shell and the rotating assembly of the present application.

[0038] Figure 5 It is a schematic diagram of the structure of the driving assembly of the present application.

[0039] Figure 6 It is a schematic diagram of the front view structure of the sealing plate and the magnet of the present application.

[0040] Figure 7 It is a schematic diagram of the side view structure of the cleaning shell of the present application.

[0041] Explanation of reference signs:

[0042] 1 boiler; 2 flame detector; 3 jet assembly; 4 driving assembly; 5 chute; 6 cleaning shell; 7 sealing plate; 8 mounting ring; 9 gas conveying pipe; 10 pressurized gas pump; 11 mounting cylinder; 12 positioning pipe; 13 rotating pipe; 14 second gear; 15 rotating rod; 16 mounting body; 17 containing pipe; 18 through hole; 19 jet hole; 20 fixed body; 21 first gear; 22 air passage; 23 air inlet hole; 24 fan blade; 25 air outlet hole; 26 filter cylinder; 27 magnet; 28 rotating assembly.

[0043] The implementation, functional features and advantages of the present application will be further described with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0045] Please refer to Figures 1 to 7 The present application provides a boiler 1 flame detection device, which comprises a flame detector 2 capable of penetrating into the interior of the boiler 1, and further comprises:

[0046] A cleaning shell 6 is connected to the boiler 1.

[0047] A jet assembly 3 is arranged in the cleaning shell 6, and the jet assembly 3 partially extends into the cleaning shell 6 and corresponds to the rotating assembly 28, so as to spray high-pressure gas into the rotating assembly 28.

[0048] The rotating assembly 28 is arranged to rotate in the interior of the cleaning shell 6, so as to surround the flame detector 2 and guide the high-pressure gas to the outer peripheral wall of the flame detector 2.

[0049] A driving assembly 4 is arranged in the cleaning shell 6, and the driving assembly 4 is connected to the rotating assembly 28, so as to rotate the rotating assembly 28.

[0050] When the dust attached to the flame detector 2 is to be cleaned, the part of the flame detector 2 extending into the boiler 1 can be pulled back to the inside of the cleaning shell 6 and finally to the inside of the rotating assembly 28. By operating the jetting assembly 3, high-pressure gas can be introduced into the cleaning shell 6, which can enter the cleaning shell 6 in sequence and finally enter the rotating assembly 28, and the rotating assembly 28 can guide the high-pressure gas to the outer peripheral wall of the flame detector 2, i.e., can jet the high-pressure gas to more parts of the outer peripheral wall of the flame detector 2, thereby improving the jetting range. The operation of the driving assembly 4 can drive the rotating assembly 28 to rotate, and the rotating assembly 28 can jet the high-pressure gas to the outer peripheral wall of the flame detector 2 while rotating, which can not only jet the high-pressure gas to more parts of the outer peripheral wall of the flame detector 2, but also change the jetting angle of the high-pressure gas, thereby further improving the jetting range of the outer peripheral wall of the flame detector 2, improving the cleaning effect of the dust on the flame detector 2, and more accurately detecting the state of the flame in the boiler 1.

[0051] In a preferred embodiment, the application can be further configured that the jetting assembly 3 comprises:

[0052] The pressurized gas pump 10 is fixedly connected to the outer wall of the cleaning shell 6.

[0053] The air passage 22 is annularly arranged on the inner wall of the cleaning shell 6, and the inner wall of the air passage 22 is movably and sealingly connected to the rotating assembly 28.

[0054] The gas conveying pipe 9 is connected to the pressurized gas pump 10 and extends into the air passage 22.

[0055] By starting the pressurized gas pump 10, the gas can be compressed and discharged into the air passage 22 through the gas conveying pipe 9. Since the inner wall of the air passage 22 is sealingly connected to the rotating assembly 28, the high-pressure gas can only enter the rotating assembly 28. In this way, the high-pressure gas can be prevented from entering the part of the cleaning shell 6 far away from the rotating assembly 28, so that more gas flow can quickly and accurately enter the rotating assembly 28.

[0056] In a preferred embodiment, the application can be further configured that the rotating assembly 28 comprises:

[0057] The rotating pipe 13 is rotationally connected to the inner wall of the cleaning shell 6, and a plurality of jetting holes 19 are arranged on the rotating pipe 13 in a circumferential direction and the flame detector 2 is arranged in the rotating pipe 13.

[0058] The mounting ring 8 is fixedly sleeved on the outer peripheral wall of the rotating pipe 13, a plurality of through holes 18 are arranged on the mounting ring 8 and correspondingly communicate with the plurality of jetting holes 19, and the mounting ring 8 is movably and sealingly connected to the inner wall of the air passage 22.

[0059] The high-pressure gas flow entering the ventilation groove 22 first flows into the plurality of through holes 18 on the mounting ring 8, and then is sprayed into the interior of the rotating tube 13 from the plurality of jet holes 19, and is sprayed to the outer wall of the flame detector 2 located in the rotating tube 13, so as to blow away the dust impurities attached to the flame detector 2.

[0060] The application can be further configured, in a preferred embodiment, in that the driving assembly 4 comprises:

[0061] The accommodating tube 17 is embedded in the cleaning shell 6;

[0062] The fixing body 20 is located in the interior of the cleaning shell 6 and is fixedly connected with the accommodating tube 17, and the fixing body 20 is provided with the gas inlet hole 23 communicating with the accommodating tube 17;

[0063] The mounting body 16 is located outside the cleaning shell 6 and is fixedly connected with the side of the accommodating tube 17 away from the fixing body 20, and the mounting body 16 is provided with the gas outlet hole 25 communicating with the accommodating tube 17;

[0064] The first gear 21 is fixedly sleeved on the outer wall of the rotating tube 13;

[0065] The rotating rod 15 is rotatably arranged in the accommodating tube 17, and the part of the rotating rod 15 located in the accommodating tube 17 is connected with the plurality of fan blades 24; and

[0066] The second gear 14 is fixedly connected with the rotating rod 15, and the second gear 14 partially penetrates the outer wall of the cleaning shell 6 and engages with the first gear 21.

[0067] The high-pressure gas flow sprayed into the rotating tube 13 passes through the flame detector 2 and is sprayed downward into the gas inlet hole 23 and enters the accommodating tube 17, and the high-pressure gas flow entering the accommodating tube 17 pushes the plurality of fan blades 24 to rotate, the rotating plurality of fan blades 24 cooperate with the rotating rod 15 to make the second gear 14 rotate, the second gear 14 engages to drive the first gear 21 and makes the rotating tube 13 rotate, and further makes the mounting ring 8 rotate, and the gas flow sprayed from the through holes 18 on the mounting ring 8 will spray the dust on the flame detector 2, and the dust will enter the accommodating tube 17 along with the gas flow and be discharged from the gas outlet hole 25.

[0068] The application can be further configured, in a preferred embodiment, in that the gas inlet hole 23 is funnel-shaped. The funnel-shaped structure of the gas inlet hole 23 is that the upper opening is large and the lower opening is small, so that the high-pressure gas flow entering the gas inlet hole 23 can be gradually accelerated, and the gas flow can more smoothly push the fan blades 24 to rotate, and further make the rotating rod 15 more smoothly rotate. And it can increase the possibility of making the rotating rod 15 rotate quickly, and further facilitate the mounting ring 8 to rotate more quickly, so that the gas flow quickly blows away the dust on the flame detector 2, and further improves the cleaning effect.

[0069] The application can be further configured in a preferred embodiment that the inner wall of the air outlet hole 25 is threadedly connected with a filter cylinder 26. The dust in the airflow entering the air outlet hole 25 can be collected by the filter cylinder 26, and the airflow can flow into the outside through the filter cylinder 26.

[0070] The application can be further configured in a preferred embodiment that the air outlet hole 25 is convexly arranged. The convex arrangement of the air outlet hole 25 can reduce the impact on the filter cylinder when the high-pressure airflow enters the air outlet hole 25, prevent the dust from being flushed out, and facilitate the collection of more dust.

[0071] The application can be further configured in a preferred embodiment that the end surface of the cleaning shell 6 at both ends is provided with a through hole, the end surface of the cleaning shell 6 close to the boiler 1 is provided with a sliding chute 5 extending in the vertical direction, the inner wall of the sliding chute 5 is slidingly connected with a magnet 27, the magnet 27 extends in the vertical direction and is fixedly connected with a sealing plate 7, the sealing plate 7 abuts against the end surface of the cleaning shell 6 and can block the through hole, and the material of the cleaning shell 6 is a ferromagnetic material.

[0072] The magnetic attraction force of the magnet 27 to the inner wall of the sliding chute 5 can position the sealing plate 7 at a position in the vertical direction, and the sealing plate 7 can also move in the vertical direction under the pushing of an external force. The cleaning shell 6 can be an iron product. When the part of the flame detector 2 extending into the inside of the boiler 1 is pulled back into the rotating assembly 28, the sealing plate 7 moves downward to cover the through hole, so that the airflow entering the cleaning shell 6 can only enter the rotating assembly 28, preventing the airflow from entering the boiler 1 through the through hole, and more airflow can be sprayed onto the flame detector 2. When it is needed to extend the flame detector 2 into the boiler 1, the sealing plate 7 is pulled upward, and when the sealing plate 7 moves upward to expose the through hole, the magnet 27 attracts the inner wall of the sliding chute 5 to position the sealing plate 7.

[0073] The application can be further configured in a preferred embodiment that the end surface of the cleaning shell 6 away from the boiler 1 is fixedly connected with a positioning tube 12, and the positioning tube 12 communicates with the inside of the cleaning shell 6.

[0074] The outer wall of the flame detector 2 is fixedly sleeved with a mounting cylinder 11, and the inner wall of the mounting cylinder 11 is threadedly connected with the outer wall of the positioning tube 12.

[0075] The one end of the mounting cylinder 11 has an opening, and the other end is fixedly sleeved on the flame detector 2. By rotating the mounting cylinder 11 in the forward direction, the mounting cylinder 11 can be separated from the positioning tube 12, and then the flame detector 2 can be pulled from the inside of the boiler 1 into the rotating assembly 28. By rotating the mounting cylinder 11 in the reverse direction, the flame detector 2 can gradually approach the end surface of the end of the cleaning shell 6 away from the boiler 1, and the flame detector 2 can be fixed.

[0076] Working principle: when in use, the rotating installation cylinder 11 is separated from the positioning tube 12, the flame detector 2 is pulled into the inside of the rotating tube 13, the pressurized gas pump 10 is started to make high pressure gas enter into the air passage 22 through the gas conveying tube 9 and from the air jet tube into the through hole 18 and spray to the outer circumferential wall of the flame detector 2 to spray off the dust and carbon black impurities. The sprayed gas flow enters into the containing tube 17 after passing through the flame detector 2 and pushes the plurality of fan blades 24 to make the fan blades 24 and the rotating rod 15 rotate, further make the first gear 21 rotate and cooperate with the second gear 14 to make the rotating tube 13 rotate, the rotating tube 13 rotates to further increase the spraying range of the gas flow on the outer wall of the flame detector 2 and improve the cleaning effect.

[0077] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the present application, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, only for the convenience of describing the present application and simplifying the description, and not to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation of the present patent, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0078] The above only describes the preferred embodiments of the present application and does not limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A flame detection device for a boiler (1) comprising a flame detector (2) capable of penetrating inside the boiler (1), characterized in that, Also comprising: a cleaning shell (6) connected to the boiler (1); a jet assembly (3) disposed in the cleaning shell (6), the jet assembly (3) partially extending into the cleaning shell (6) and corresponding to a rotating assembly (28), for spraying high-pressure gas into the rotating assembly (28); a rotating assembly (28) rotatably disposed in the cleaning shell (6), for surrounding the flame detector (2) and guiding the high-pressure gas to the outer wall of the flame detector (2); and a driving assembly (4) disposed in the cleaning shell (6), the driving assembly (4) being connected to the rotating assembly (28) for rotating the rotating assembly (28). The jet assembly (3) comprises:

2. Boiler (1) flame detection apparatus according to claim 1, characterised in that, a pressurized gas pump (10) fixedly connected to the outer wall of the cleaning shell (6); an air passage (22) annularly disposed on the inner wall of the cleaning shell (6), the inner wall of the air passage (22) being movably and sealingly connected to the rotating assembly (28); and a gas delivery pipe (9) connected to the pressurized gas pump (10) and extending into the air passage (22). The rotating assembly (28) comprises:

3. Boiler (1) flame detection apparatus according to claim 2, characterised in that, a rotating pipe (13) rotatably connected to the inner wall of the cleaning shell (6), the rotating pipe (13) being provided with a plurality of jet holes (19) spaced along the circumference thereof and capable of surrounding the flame detector (2); and a mounting ring (8) fixedly sleeved on the outer wall of the rotating pipe (13), the mounting ring (8) being provided with a plurality of through holes (18) corresponding to the plurality of jet holes (19) and movably and sealingly connected to the inner wall of the air passage (22). The driving assembly (4) comprises:

4. Boiler (1) flame detection apparatus according to claim 3, characterised in that, a containing pipe (17) embedded in the cleaning shell (6); a fixed body (20) located in the interior of the cleaning shell (6) and fixedly connected to the containing pipe (17), the fixed body (20) being provided with an air inlet hole (23) communicating with the containing pipe (17); a mounting body (16) located outside the cleaning shell (6) and fixedly connected to the containing pipe (17) on the side away from the fixed body (20), the mounting body (16) being provided with an air outlet hole (25) communicating with the containing pipe (17); a first gear (21) fixedly sleeved on the outer wall of the rotating pipe (13); a rotating rod (15) rotatably penetrating the containing pipe (17), the portion of the rotating rod (15) located in the containing pipe (17) being connected to a plurality of fan blades (24); and a second gear (14) fixedly connected to the rotating rod (15), the second gear (14) partially penetrating the outer wall of the cleaning shell (6) and engaging the first gear (21). The air inlet hole (23) is funnel-shaped.

5. Boiler (1) flame detection apparatus according to claim 4, characterised in that, The inner wall of the air outlet hole (25) is threadedly connected to a filter cylinder (26).

6. A boiler (1) flame detection apparatus according to claim 4, characterised in that, The air outlet hole (25) is convex.

7. Boiler (1) flame detection apparatus according to claim 6, characterised in that, ​ 8. A boiler (1) flame detection apparatus according to claim 1, characterised in that, The end face of the cleaning shell (6) is provided with a through hole, the end face of the cleaning shell (6) close to the boiler (1) is provided with a chute (5) extending along the vertical direction, the inner wall of the chute (5) is slidably connected with a magnet (27), the magnet (27) extends along the vertical direction and is fixedly connected with a sealing plate (7), the sealing plate (7) abuts against the end face of the cleaning shell (6) and can block the through hole, and the material of the cleaning shell (6) is ferromagnetic material.

9. A boiler (1) flame detection apparatus according to claim 1, characterised in that, The end face of the cleaning shell (6) is provided with a through hole, the end face of the cleaning shell (6) close to the boiler (1) is provided with a chute (5) extending along the vertical direction, the inner wall of the chute (5) is slidably connected with a magnet (27), the magnet (27) extends along the vertical direction and is fixedly connected with a sealing plate (7), the sealing plate (7) abuts against the end face of the cleaning shell (6) and can block the through hole, and the material of the cleaning shell (6) is ferromagnetic material. The outer wall of the flame detector (2) is fixedly sleeved with a mounting cylinder (11), and the inner wall of the mounting cylinder (11) is threadedly connected with the outer wall of the positioning pipe (12).

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