Open fire furnace with flame detection function

Abstract

The utility model relates to an open fire furnace with a flame detection function, which belongs to the technical field of open fire furnaces and comprises an open fire gas-fired boiler, a quartz cover, a high-temperature-resistant ceramic substrate, a UV (ultraviolet) sensor, an IR (infrared) sensor, a water-cooled radiator and a cooling-water machine, the high-temperature-resistant ceramic substrate is mounted in the open fire gas-fired boiler, and the quartz cover is mounted at the high-temperature-resistant ceramic substrate. The UV sensor, the IR sensor and the water cooling radiator are installed on the high-temperature-resistant ceramic substrate, and the open fire gas-fired boiler is fixedly provided with an equipment box. According to the utility model, the quartz cover is arranged for protecting the sensor, and a circulating water cooling structure is arranged in the quartz cover, so that the stable operation of the sensor can be ensured, the detection effect of the sensor is prevented from being influenced by high temperature, the overall structure is compact, and the air blowing assembly is arranged for self-cleaning the surface of the quartz cover; smoke dust generated by open fire combustion is prevented, unburned particles are possibly attached to the surface of the quartz cover to form a carbon deposition layer, and the detection effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to open fire stove technical field, in particular to a kind of open fire stove with flame detection function. BACKGROUND

[0002] At present, the flame detection of open fire stove (such as industrial burner, gas boiler) mainly relies on single sensor (such as ultraviolet, ionization or infrared sensor), and the following problems exist in actual use process: 1, poor anti-interference ability: high temperature is prone to misjudgment; 2, high maintenance cost: the carbon deposition of sensor protective cover needs frequent cleaning; 3, response delay: single sensor is difficult to quickly identify flame anomaly.

[0003] Through retrieval, the Chinese patent with publication number CN201220346393.8 discloses an external-viewing type furnace flame monitoring structure, which adopts external-viewing type monitoring, has small installation volume, saves space, has low maintenance cost and small use cost, and has simple structure and low failure rate compared with internal-viewing type monitoring.

[0004] The above technical scheme has the following defects: such open fire stove structure can detect video in stove through camera and can be protected through glass cover, but is prone to misjudgment under the influence of high temperature in actual use process, and single sensor is difficult to quickly identify flame anomaly, in order to further improve the flame detection effect, the present application provides an open fire stove with flame detection function, which is provided with two kinds of flame detection sensors, UV sensor and IR sensor, the UV sensor detects 185-260nm ultraviolet rays of the flame, the IR sensor is arranged at an angle of 60° with the UV sensor and detects 4.3μm infrared radiation, a quartz cover is arranged for protecting the sensor, a circulating water cooling structure is arranged in the quartz cover, so that the operation stability of the sensor can be ensured, the detection effect of the sensor is prevented from being affected by high temperature, the overall structure is compact, an air blowing assembly is arranged, the surface of the quartz cover can be self-cleaned, the smoke and unburned particles generated by open fire combustion can be prevented from adhering to the surface of the quartz cover to form a carbon deposition layer, and the detection effect is ensured.

[0005] Therefore, the present application improves the above problems and solves them through deep research and application of theory.

[0006] The information disclosed in the background section of this document is only intended to deepen the understanding of the overall background of the utility model, and should not be regarded as acknowledging or implying in any form that the information constitutes prior art known to those skilled in the art. UTILITY MODEL CONTENT

[0007] The utility model provides a kind of open fire stove with flame detection function, solve the problem raised in the above background, quartz cover is provided for protecting sensor, circulation water cooling structure is configured in quartz cover, to ensure the operating environment of sensor, prevent high temperature from affecting the detection effect of sensor, it is provided with UV sensor and IR sensor two kinds of flame detection sensor can recheck detection to flame, it is provided with air blowing assembly, quartz cover surface can be self-cleaning treatment, ensure detection effect.

[0008] The utility model discloses a kind of open fire stove with flame detection function, including open fire gas boiler, quartz cover, high-temperature-resistant ceramic substrate, UV sensor, IR sensor, water-cooled radiator, water chiller, the high-temperature-resistant ceramic substrate is installed in open fire gas boiler, the quartz cover is installed at high-temperature-resistant ceramic substrate, the UV sensor, IR sensor and water-cooled radiator are installed at high-temperature-resistant ceramic substrate, the open fire gas boiler is fixedly installed with equipment box, the equipment box is fixedly installed with No.

[0009] On the basis of the above technical solution, the utility model can also be improved as follows.

[0010] Further, the high-temperature-resistant ceramic substrate is installed with temperature detector, to detect the temperature in quartz cover.

[0011] Further, the open fire gas boiler is installed with load-bearing support, the load-bearing support is installed with No.

[0012] Further, the open fire gas boiler is provided with inlet and outlet, and the inlet and outlet are provided with sealing groove corresponding to the sealing door.

[0013] Further, the cleaning air pipe is provided as arc structure matched with quartz cover, and the cleaning air pipe is uniformly fixedly connected with cleaning nozzle.

[0014] Further, the circulation water pipe is laid in water-cooled radiator, one end of the circulation water pipe is communicated with circulation water pump, and the other end is communicated with water chiller.

[0015] Further, the water-cooled radiator is uniformly provided with radiating fins, which can further improve the heat dissipation effect.

[0016] Further, the UV sensor and the IR sensor are arranged at an angle of 60 degrees to avoid spectral cross interference, and the UV sensor and the IR sensor are arranged at the flame root of the open fire gas boiler.

[0017] The utility model provides a kind of open fire furnace with flame detection function, with the following advantages:

[0018] 1, quartz cover can isolate protection UV sensor and IR sensor, can be based on the time synchronization threshold of double sensor signal of UV sensor and IR sensor ±5ms to judge flame state, start circulating water pump to ensure that UV sensor and IR sensor are detected at suitable temperature;

[0019] 2, if UV and IR signal continuously deviate threshold or reach timing cleaning time, open fire gas boiler can be closed, start blocking door to open from import and export, start No.

[0020] 3, such open fire furnace structure is provided with two kinds of flame detection sensors of UV sensor and IR sensor, UV sensor detects 185-260nm ultraviolet of flame, IR sensor is arranged at an angle of 60 degrees with UV sensor, and detects 4.3 μm infrared radiation;

[0021] 4, quartz cover is arranged for protecting sensor, and circulating water cooling structure is configured in quartz cover, so that the stable operation of sensor can be ensured, the detection effect of sensor is prevented from being influenced by high temperature, the overall structure is compact, air blowing assembly is arranged, quartz cover surface can be self-cleaning, prevent smoke and unburnt particles generated by open fire from possibly adhering to quartz cover surface, form carbon layer, and ensure detection effect.

[0022] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following is the preferred embodiment of the utility model and the detailed description of the drawings as follows.The specific embodiment of the utility model is given in detail by the following examples and their drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0024] Fig. 1 A schematic diagram of the structure of an open flame furnace with flame detection function provided in an embodiment of this utility model;

[0025] Fig. 2 A front view of an open-flame gas boiler with flame detection function provided in an embodiment of this utility model;

[0026] Fig. 3 A schematic diagram of the structure of a quartz cover with flame detection function in an open flame furnace, as shown in frontal view, according to an embodiment of this utility model;

[0027] Fig. 4 A top-view structural diagram of a quartz shroud in an open-flame furnace with flame detection function, provided as an embodiment of this utility model;

[0028] Fig. 5 This is a schematic diagram of the structure of a cleaning duct in an open-flame furnace with flame detection function, provided in one embodiment of the present invention.

[0029] Fig. 6 This is a schematic diagram of the structure of an equipment box in an open flame furnace with flame detection function, provided as an embodiment of the present invention.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Open flame gas boiler; 2. Quartz cover; 3. High temperature resistant ceramic substrate; 4. UV sensor; 5. IR sensor; 6. Water-cooled radiator; 7. Temperature detector; 8. Inlet and outlet; 9. Load-bearing bracket; 10. No. 1 hydraulic cylinder; 11. Sealing door; 12. Equipment box; 13. No. 2 hydraulic cylinder; 14. Equipment bracket; 15. Drive motor; 16. Cleaning duct; 17. Cleaning nozzle; 18. Air pump; 19. Chiller; 20. Circulating water pump; 21. Circulating water pipe. Detailed Implementation

[0032] The following is in conjunction with the appendix Figs. 1-6 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0033] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] like Figs. 1-6 As shown, an open-flame furnace with flame detection function includes an open-flame gas boiler 1, a quartz cover 2, a high-temperature resistant ceramic substrate 3, a UV sensor 4, an IR sensor 5, a water-cooled radiator 6, and a chiller 19. The high-temperature resistant ceramic substrate 3 is installed inside the open-flame gas boiler 1, the quartz cover 2 is installed on the high-temperature resistant ceramic substrate 3, and the UV sensor 4, IR sensor 5, and water-cooled radiator 6 are installed on the high-temperature resistant ceramic substrate 3. An equipment box 12 is fixedly installed in the open-flame gas boiler 1. A second hydraulic cylinder 13 is fixedly installed in the equipment box 12. An equipment bracket 14 is fixedly installed in the second hydraulic cylinder 13. A drive motor 15 is fixedly installed in the equipment bracket 14. A cleaning air duct 16 is rotatably connected to the equipment bracket 14. The drive end of the drive motor 15 is fixedly connected to the cleaning air duct 16. An air pump 18 is fixedly installed in the equipment box 12. The air pump 18 is connected to the cleaning air duct 16 through a pipe. A circulating water pump 20 is fixedly connected to the chiller 19, and a circulating water pipe 21 is provided on the water-cooled radiator 6.

[0036] Preferably, the high-temperature resistant ceramic substrate 3 is equipped with a temperature detector 7, which can detect the temperature inside the quartz cover 2.

[0037] Preferably, the open flame gas boiler 1 is equipped with a load-bearing bracket 9, and the load-bearing bracket 9 is equipped with a first hydraulic cylinder 10. The drive end of the first hydraulic cylinder 10 is equipped with a blocking door 11, which can be driven by the first hydraulic cylinder 10 to block the inlet and outlet 8.

[0038] Preferably, the open flame gas boiler 1 is provided with inlet and outlet 8, and the inlet and outlet 8 are provided with sealing door grooves corresponding to the sealing door 11.

[0039] Preferably, the cleaning air pipe 16 is arranged in an arc shape matching the quartz cover 2, and the cleaning air pipe 16 is uniformly fixed and communicated with the cleaning nozzles 17, and the cleaning air pipe 16 can clean the surface of the quartz cover 2 through the cleaning nozzles 17.

[0040] Preferably, the circulating water pipe 21 is arranged in the water-cooled radiator 6, one end of the circulating water pipe 21 is communicated with the circulating water pump 20, and the other end is communicated with the water chiller 19, and the water chiller 19 can pump cold water into the circulating water pipe 21, so as to exchange heat with the water-cooled radiator 6.

[0041] Preferably, the water-cooled radiator 6 is uniformly provided with heat dissipation fins, which can preferably improve the heat dissipation effect.

[0042] Preferably, the UV sensor 4 and the IR sensor 5 are arranged at an angle of 60 degrees to avoid spectral cross interference, and the UV sensor 4 and the IR sensor 5 control the flame root of the lighting fire gas boiler 1.

[0043] The specific working principle and use method of the utility model are as follows: the UV sensor 4 and the IR sensor 5 can detect the flame root in the lighting fire gas boiler 1, the UV sensor 4 can detect the 185-260nm ultraviolet of the flame, the IR sensor 5 can detect 4.3mu infrared radiation, the quartz cover 2 can isolate and protect the UV sensor 4 and the IR sensor 5, the flame state can be judged based on the time synchronization threshold of the double sensor signals of the UV sensor 4 and the IR sensor 5±5ms, the circulating water pump 20 is started to pump cold water from the water chiller 19 into the circulating water pipe 21, so that the water-cooled radiator 6 can be water-cooled in the quartz cover 2, and the temperature detector 7 can stably detect the quartz cover 2, so as to ensure that the UV sensor 4 and the IR sensor 5 detect at an appropriate temperature, if the UV and IR signals continuously deviate from the threshold or reach the timing cleaning time, the lighting fire gas boiler 1 can be closed, the first hydraulic cylinder 10 at the load-bearing support 9 is started to drive the sealing door 11 to open from the inlet and outlet 8, the second hydraulic cylinder 13 is started to drive the equipment support 14 to press down, so that the cleaning air pipe 16 can approach the quartz cover 2, the driving motor 15 is started to drive the cleaning air pipe 16 to rotate around the quartz cover 2, the air pump 18 is started to pump the air outside the wall into the cleaning air pipe 16, the air can be sprayed from the cleaning nozzles 17 to clean the surface of the quartz cover 2 by air power, so that the soot and unburned particles generated by the open fire on the surface of the quartz cover 2 are cleaned, which prevents the accumulation of carbon layer and blocks the UV / IR signal, resulting in the decrease of the sensitivity of the sensor.

[0044] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form; any person skilled in the art can smoothly implement the present application according to the drawings shown in the specification and the above description; however, any person skilled in the art can make slight changes, modifications and equivalent changes of the present application within the scope of the technical scheme of the present application, and the equivalent embodiments of the present application are still within the protection scope of the technical scheme of the present application.

Claims

1. A flame-fired furnace with flame detection function, comprising a flame-fired gas boiler (1), a quartz cover (2), a high-temperature resistant ceramic substrate (3), a UV sensor (4), an IR sensor (5), a water-cooled radiator (6), and a chiller (19), characterized in that: The high-temperature resistant ceramic substrate (3) is installed inside the open-flame gas boiler (1). The quartz cover (2) is installed on the high-temperature resistant ceramic substrate (3). The UV sensor (4), IR sensor (5), and water-cooled radiator (6) are installed on the high-temperature resistant ceramic substrate (3). The open-flame gas boiler (1) is fixedly equipped with an equipment box (12). The equipment box (12) is fixedly equipped with a second hydraulic cylinder (13). The second hydraulic cylinder (13) is fixedly equipped with an equipment bracket (14). The equipment bracket (14) is fixedly equipped with a drive motor (15), the equipment bracket (14) is rotatably connected to a cleaning air duct (16), the drive end of the drive motor (15) is fixedly connected to the cleaning air duct (16), the equipment box (12) is fixedly equipped with an air pump (18), the air pump (18) is connected to the cleaning air duct (16) through a pipe, the chiller (19) is fixedly connected to a circulating water pump (20), and the water-cooled radiator (6) is equipped with a circulating water pipe (21).

2. The open flame stove with flame detection function according to claim 1, characterized in that, The high-temperature resistant ceramic substrate (3) is equipped with a temperature detector (7).

3. The open flame stove with flame detection function according to claim 1, characterized in that, The open flame gas boiler (1) is equipped with a load-bearing bracket (9), and the load-bearing bracket (9) is equipped with a first hydraulic cylinder (10). The drive end of the first hydraulic cylinder (10) is equipped with a sealing door (11).

4. The open flame stove with flame detection function according to claim 1, characterized in that, The open flame gas boiler (1) is provided with an inlet and outlet (8), and the inlet and outlet (8) are provided with a sealing door groove corresponding to the sealing door (11).

5. A flame-detecting stove according to claim 1, characterized in that, The cleaning duct (16) is configured with an arc-shaped structure that is compatible with the quartz cover (2), and the cleaning duct (16) is uniformly and fixedly connected to the cleaning nozzles (17).

6. The open flame stove with flame detection function according to claim 1, characterized in that, The circulating water pipe (21) is laid inside the water-cooled radiator (6). One end of the circulating water pipe (21) is connected to the circulating water pump (20), and the other end is connected to the chiller (19).

7. A flame-emitting stove with flame detection function according to claim 1, characterized in that, The water-cooled radiator (6) is uniformly provided with heat dissipation fins.

8. A flame-detecting stove according to claim 1, characterized in that, The UV sensor (4) and IR sensor (5) are set at a 60-degree angle, and the UV sensor (4) and IR sensor (5) are positioned at the root of the flame of the lighting gas boiler (1).

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