Oil gun feeding device based on boiler operation state monitoring

Abstract

The utility model provides an oil gun input device based on boiler operation state monitoring, which comprises a boiler body, a flame detection sensor, an ignition oil gun, a counter and a controller, the flame detection sensor can monitor the flame combustion condition in a hearth through a glass plate, when the flame combustion condition becomes worse, the flame detection sensor can generate a primary signal, and when the flame combustion condition becomes worse, the ignition oil gun is put into the boiler. When the number of times of signals received by the counter within unit time reaches a preset value, the controller can control the ignition oil gun to ignite, and combustion supporting is conducted on flames in the hearth. The fire detection sensor, the counter, the ignition oil gun and the controller act together, the combustion condition of flames in a hearth can be monitored in real time in the operation process of the boiler, the ignition oil gun is put into operation in time through the counter and the controller, safe and stable operation of the boiler is guaranteed, and the service life of the boiler is prolonged. Risks and defects caused by the fact that traditional manual monitoring cannot be achieved or oil is not fed in time are overcome, and stability and heat efficiency of boiler operation are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the boiler flame detection technical field, concretely relates to an oil gun input device based on the boiler operation state monitoring. BACKGROUND

[0002] The boiler is the important equipment of the thermal power plant, and the real-time parameter of the boiler needs to be monitored, when the flame is unstable or extinguished, the FSSS (boiler furnace safety monitoring system) fire extinguishing protection can be triggered, the boiler is shut down, and the boiler furnace safety and power generation efficiency are affected. The boiler combustion is a complex physical and chemical process, and multiple key factors are involved, which jointly determine the efficiency and quality of the combustion. Among them, the main factors include fuel quality, coal powder fineness, air and fuel ratio, boiler load, and air intake. In order to realize the control of the boiler combustion, in the existing technology, the flame state is monitored through the fire detection sensor in the boiler operation stage, when the number of flame flickering increases, the flame combustion is unstable, and the oil gun combustion is assisted. In the prior art, there is no means for timely monitoring the flame state in the boiler, and the oil gun is not input in time, which affects the stability and thermal efficiency of the boiler operation. SUMMARY

[0003] The utility model provides a kind of oil gun input device based on the boiler operation state monitoring, to solve the problem of lacking means for timely monitoring the flame state in the boiler in the prior art, and the problem of oil gun not being input in time.

[0004] To achieve the above object, the technical scheme adopted by the utility model is as follows: an oil gun input device based on the boiler operation state monitoring is provided, comprising:

[0005] A boiler body, an observation port and an oil gun mounting port are formed in the side wall of the boiler body, the observation port and the oil gun mounting port are respectively communicated with the furnace of the boiler body, and the observation port is provided with a glass plate;

[0006] A fire detection sensor is arranged on the side of the glass plate away from the furnace and faces the inside of the furnace;

[0007] An ignition oil gun is arranged in the oil gun mounting hole;

[0008] A counter is communicatively connected with the fire detection sensor and is used for recording the number of signals of the fire detection sensor per unit time; and

[0009] A controller is communicatively connected with the counter and the ignition oil gun respectively.

[0010] In a possible implementation, the opposite two side walls of the boiler body are respectively provided with a plurality of observation openings, and the observation openings on each side are arranged in a horizontal direction.

[0011] In a possible implementation, the opposite two side walls of the boiler body are respectively provided with a plurality of oil gun mounting openings, and the oil gun mounting openings on each side are arranged in a horizontal direction.

[0012] In a possible implementation, the ignition oil guns are arranged in multiple rows below the injury.

[0013] In a possible implementation, the observation opening is arranged above the oil gun mounting opening, and one end of the observation opening, which is communicated with the furnace, is arranged in a downward inclined manner.

[0014] In a possible implementation, the observation opening is provided with an annular fixing sleeve, the glass plate is arranged in the inner hole of the fixing sleeve, and the boiler body further comprises a soot scraping mechanism.

[0015] The rotating ring is arranged on the side of the glass plate adjacent to the furnace and is coaxially rotatably connected with the fixing sleeve.

[0016] The scraping plate is connected to the inner wall of the rotating ring and abuts against the glass plate.

[0017] The transmission wheel is rotatably connected with the fixing sleeve and is drivingly connected with the rotating ring, the transmission wheel is coaxially connected with a transmission shaft, and the transmission shaft extends to the outside of the boiler body along the opening direction of the observation opening.

[0018] In a possible implementation, the rotating ring has an outer gear ring, and the transmission wheel is a gear that is in meshing transmission with the outer gear ring.

[0019] In a possible implementation, the transmission shaft is connected with a handle at one end extending out of the boiler body.

[0020] In a possible implementation, the fixing sleeve is provided with a guide sleeve, the guide sleeve has a guide hole, and the transmission shaft is arranged in the guide hole.

[0021] In a possible implementation, the observation opening is circular.

[0022] Compared with the prior art, the oil gun feeding device based on the boiler operation state monitoring has the following advantages:

[0023] The oil gun input device based on boiler operation state monitoring provided by the utility model comprises a boiler body, a fire detection sensor, an ignition oil gun, a counter and a controller, the fire detection sensor is installed at an observation port, the flame burning condition in a hearth can be monitored through a glass plate, when the flame burning condition is poor (such as the flame flickers), the fire detection sensor can generate a signal, and the signal is fed back to the counter, when the number of signals received by the counter in a unit time reaches a preset value, the controller can control the ignition oil gun to ignite and assist the combustion of the flame in the hearth.

[0024] The fire detection sensor, the counter, the ignition oil gun and the controller jointly act in the utility model, the combustion condition of the flame in the hearth can be monitored in real time during the operation of the boiler, the ignition oil gun is put into operation in time through the counter and the controller, the safety and stable operation of the boiler are ensured, the risks and disadvantages caused by the traditional manual monitoring and the untimely oil injection are solved, and the stability and thermal efficiency of the boiler operation are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The working principle diagram of the oil gun input device based on boiler operation state monitoring provided by the utility model embodiment is provided.

[0026] Figure 2 The structure diagram of the oil gun input device based on boiler operation state monitoring provided by the utility model embodiment is provided. Figure 1 ;

[0027] Figure 3 The structure diagram of the oil gun input device based on boiler operation state monitoring provided by the utility model embodiment is provided. Figure 2 ;

[0028] Figure 4 The structure diagram of the fixed sleeve, the glass plate and the ash scraping mechanism in the utility model embodiment is provided. Figure 1 ;

[0029] Figure 2 The structure diagram of the fixed sleeve, the glass plate and the ash scraping mechanism in the utility model embodiment is provided. Figure 1 to Figure 5 ;

[0030] BRIEF DESCRIPTION OF DRAWINGS

[0031] 10, boiler body;11, glass plate;12, fixed sleeve;13, rotating ring;14, scraper;15, transmission wheel;16, handle;17, guide sleeve;20, fire detection sensor;30, ignition oil gun; DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer, the utility model will be described in further detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0033] It should be noted that when an element is referred to as being "fixed to", "fixed", "secured to" another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected to", "connected" another element, it can be directly connected to the other element or there can be an intervening element. When an element is referred to as being "disposed on", "disposed to" another element, it can be directly on the other element or there can be an intervening element. "Plural" means two or more. "At least one" means one or more. "Several" means one or more.

[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 the utility model belongs.

[0035] Please refer to Figure 1 , the oil gun input device based on the boiler operation state monitoring provided by the utility model embodiment will be described below.

[0036] Please refer to Figure 2 , Figure 3 and Figure 2 , the oil gun input device based on the boiler operation state monitoring provided by the utility model embodiment, including boiler body 10, fire detection sensor 20, ignition oil tank, counter and controller. The boiler body 10 has a hearth, the side wall of the boiler body 10 is provided with an observation port and an oil gun mounting hole, the observation port and the oil gun mounting hole are respectively communicated with the hearth of the boiler body 10, and the observation port is provided with a glass plate 11; the fire detection sensor 20 is used for detecting the flame state, the fire detection sensor 20 is arranged on the side of the glass plate 11 away from the hearth and faces the inside of the hearth; the ignition oil gun 30 is used for combustion support when the flame burns poorly, and the ignition oil gun 30 is arranged in the oil gun mounting hole; the counter is in communication connection with the fire detection sensor 20, and is used for recording the signal frequency of the fire detection sensor 20 in unit time; the controller is in communication connection with the counter and the ignition oil gun 30 respectively, and is used for controlling the ignition oil gun 30 to spray oil for combustion support when the flame burning state in the hearth is poor according to the signal frequency of the fire detection sensor 20 recorded by the counter.

[0037] Compared with the prior art, the oil gun input device based on the boiler operation state monitoring provided by the utility model embodiment has the beneficial effects that:

[0038] The oil gun input device based on boiler operation state monitoring provided by the embodiment of the utility model includes boiler body 10, fire detection sensor 20, ignition oil gun 30, counter and controller, fire detection sensor 20 is installed at the observation port, and the flame burning condition in the hearth can be monitored through the glass plate 11; when the flame burning condition is poor (such as the flame flickers), the fire detection sensor 20 can generate a signal, and the signal is fed back to the counter; when the number of signals received by the counter in a unit time reaches a preset value, the controller can control the ignition oil gun 30 to ignite and assist the combustion of the flame in the hearth.

[0039] In the embodiment of the utility model, the fire detection sensor 20, the counter, the ignition oil gun 30 and the controller jointly act, the burning condition of the flame in the hearth can be monitored in real time during the operation of the boiler, the ignition oil gun 30 is put into operation in time through the counter and the controller, the safety and stable operation of the boiler are ensured, the risks and disadvantages caused by the traditional manual monitoring and the delayed oil injection are solved, and the stability and thermal efficiency of the boiler operation are ensured.

[0040] In the embodiment of the utility model, the boiler body 10 can be a coal-fired boiler structure in the prior art, the side wall of the boiler body 10 is provided with an observation port, the observation port can be circular, rectangular, regular hexagonal or the like, and the glass plate 11 is heat-resistant transparent glass which is adapted in shape and size to the observation port.

[0041] The fire detection sensor 20 is used for detecting the flame burning condition in the hearth, and when the flame state is poor, a first electric signal can be generated and transmitted to the counter, the counter is connected with a timer, the number of signals of the fire detection sensor 20 in a unit time can be detected, when the number of signals in a unit time reaches a preset value, the controller starts the ignition oil gun 30, the ignition oil gun 30 is put into operation, and the smooth combustion of the flame in the hearth is ensured. The fire detection sensor 20 can directly select a product with appropriate specifications and models on the market, and the use requirement can be met.

[0042] According to the requirement, the fire detection sensor 20 can be provided with multiple rows in up and down directions, and each row can be provided with multiple (such as four) fire detection sensors 20. When any one of the fire detection sensors 20 senses a signal more than three times in one minute, the controller automatically puts the corresponding single ignition oil gun 30 into operation. When more than two of the fire detection sensors 20 in each row sense a signal more than three times in one minute, the controller automatically puts the whole row of ignition oil guns 30 into operation.

[0043] It should be noted that when the ignition oil guns 30 are arranged in opposition and provided with multiple rows, usually only the ignition oil guns 30 in the lowermost row are put into operation. After the flame in the hearth gradually recovers and stabilizes, the system can automatically judge and gradually reduce the input of the ignition oil guns 30 according to the fire detection signal, so that the excessive consumption of fuel oil is avoided.

[0044] The oil gun input device based on boiler operation state monitoring provided by the utility model relates to the automatic control technology of coal-fired power plants and can be widely applied to the boiler control system of coal-fired power plants and is especially suitable for combustion control scenes requiring high automation and high stability. The oil gun input device based on boiler operation state monitoring provided by the utility model not only can improve the efficiency and safety of coal-fired power generation but also can reduce manual operation and improve the intelligent level of the overall control system.

[0045] In application, through the automatic linkage of the flame detection sensor 20, the counter, the timer and the controller, the system can automatically control the input of the oil gun according to the flame state, and the dependence on manual operation is reduced. Since the traditional oil gun input mode often depends on manual judgment of the flame condition, there is a problem of untimely response. The utility model can input the oil gun at the moment when the number of flame flickers exceeds the preset value through automatic monitoring of the flame state, so that the shutdown of the boiler caused by delayed response is avoided. The system monitors the flame state in the furnace in real time through the flame detection sensor 20, ensures the stability of the flame, avoids dangerous conditions such as flame extinction that may occur in the combustion process, and improves the safe operation level of the boiler.

[0046] Please refer to Figure 3 and Figure 2 In some possible embodiments, for most coal-fired boilers, a plurality of observation openings are formed in the opposite two side walls of the boiler body 10, and the observation openings on each side are arranged in the horizontal direction, and the flame detection sensor 20 is provided with a plurality of flame detection sensors 20, and the plurality of flame detection sensors 20 correspond one-to-one to the observation openings.

[0047] Please refer to Figure 3 and Figure 2 In some possible embodiments, a plurality of oil gun mounting openings are formed in the opposite two side walls of the boiler body 10, and the oil gun mounting openings on each side are arranged in the horizontal direction, and the ignition oil gun 30 is provided with a plurality of ignition oil guns 30, and the plurality of ignition oil guns 30 correspond one-to-one to the oil gun mounting openings.

[0048] Please refer to Figure 3 and Figure 2 In some possible embodiments, the ignition oil gun 30 is provided with a plurality of rows from below, and the controller can control the operation of a single ignition oil gun 30 or the simultaneous operation of a single row of multiple ignition oil guns 30.

[0049] Please refer to Figure 3 and Figure 4 In some possible embodiments, the observation opening is arranged above the oil gun mounting opening, and one end of the observation opening connected to the furnace is arranged obliquely downward, so that the detection end of the flame detection sensor 20 directly faces the inside of the furnace.

[0050] Please refer to Figure 5 and Figure 4In some possible embodiments, the observation port is provided with an annular fixing sleeve 12, the glass plate 11 is arranged in the inner hole of the fixing sleeve 12, the boiler body 10 further comprises a soot scraping mechanism for scraping the soot adhered to the glass plate 11, and the fire detection sensor 20 can detect the flame burning condition in the hearth through the glass plate 11. The soot scraping mechanism specifically comprises a rotating ring 13, a scraping plate 14 and a transmission wheel 15. The rotating ring 13 is arranged at one side of the glass plate 11 adjacent to the hearth and coaxially rotates with the fixing sleeve 12; the scraping plate 14 is connected to the inner wall of the rotating ring 13 and abuts against the glass plate 11; the transmission wheel 15 rotates with the fixing sleeve 12 and is in transmission connection with the rotating ring 13, and the transmission wheel 15 is coaxially connected with a transmission shaft which extends to the outside of the boiler body 10 along the opening direction of the observation port.

[0051] In the embodiment, the soot scraping mechanism is used to scrape the soot adhered to the glass plate 11, so as to ensure the light transmittance of the glass plate 11 and enable the fire detection sensor 20 to accurately detect the flame burning condition. The soot scraping mechanism adopts a mechanical transmission mode, and when working, the transmission shaft drives the transmission wheel 15 to rotate, the transmission wheel 15 drives the rotating ring 13 to rotate, and the rotating ring 13 drives the scraping plate 14 to clean the surface of the glass plate 11.

[0052] Referring to Figure 5 and Figure 4 In some possible embodiments, the rotating ring 13 has an outer gear ring, and the transmission wheel 15 is a gear in meshing transmission with the outer gear ring.

[0053] Referring to Figure 5 and Figure 4 In some possible embodiments, one end of the transmission shaft extending to the outside of the boiler body 10 is connected with a handle 16, the handle 16 can be manually rotated to drive the scraping plate 14 to rotate.

[0054] Referring to Figure 5 and ​ In some possible embodiments, the fixing sleeve 12 is provided with a guide sleeve 17 having a guide hole, and the transmission shaft is arranged in the guide hole to guide the transmission shaft and prevent the transmission shaft from moving or deflecting.

[0055] It can be understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments, and the specific content of each combined embodiment will not be described herein. After the description, it can be considered that the utility model specification has recorded each combined embodiment and can support different combined embodiments.

[0056] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fuel gun injection device based on boiler operation state monitoring, characterized by, The utility model relates to a boiler, which comprises: a boiler body having side walls with observation openings and oil gun mounting openings, the observation openings and the oil gun mounting openings being in communication with a hearth of the boiler body, the observation openings being provided with glass plates; a fire detection sensor arranged on a side of the glass plate away from the hearth and facing the inside of the hearth; an ignition oil gun arranged in the oil gun mounting hole; a counter in communication with the fire detection sensor for recording the number of signals of the fire detection sensor per unit time; and a controller in communication with the counter and the ignition oil gun. The opposite side walls of the boiler body are respectively provided with a plurality of observation openings, and the observation openings on each side are arranged in a horizontal direction, the fire detection sensor is provided with a plurality of fire detection sensors corresponding to the observation openings.

2. The oil gun injection device based on boiler operation state monitoring according to claim 1, characterized in that, The opposite side walls of the boiler body are respectively provided with a plurality of oil gun mounting openings, and the oil gun mounting openings on each side are arranged in a horizontal direction, the ignition oil gun is provided with a plurality of ignition oil guns corresponding to the oil gun mounting openings.

3. The oil gun injection device based on boiler operation state monitoring according to claim 1, characterized in that, The ignition oil gun is provided with a plurality of rows from below.

4. The oil gun injection device based on boiler operation state monitoring according to claim 3, characterized in that, The observation openings are arranged above the oil gun mounting openings, and one end of the observation openings in communication with the hearth is arranged obliquely downward.

5. The oil gun application device based on boiler operation state monitoring according to claim 1, characterized in that, The observation openings are provided with an annular fixing sleeve, the glass plate is arranged in the inner hole of the fixing sleeve, and the boiler body further comprises a dust scraping mechanism, the dust scraping mechanism comprising:

6. The oil gun application device based on boiler operation state monitoring according to claim 1, characterized in that, a rotating ring arranged on a side of the glass plate adjacent to the hearth and coaxially rotating with the fixing sleeve; a scraper connected to the inner wall of the rotating ring and abutting against the glass plate; and a transmission wheel rotating with the fixing sleeve and in transmission connection with the rotating ring, the transmission wheel is coaxially connected with a transmission shaft, and the transmission shaft extends to the outside of the boiler body along the opening direction of the observation opening. The rotating ring has an outer gear ring, and the transmission wheel is a gear in meshing transmission with the outer gear ring.

7. The oil gun admission device based on boiler operation state monitoring according to claim 6, characterized in that, One end of the transmission shaft extending out of the boiler body is connected with a handle.

8. The oil gun admission device based on boiler operation state monitoring according to claim 7, characterized in that, The fixing sleeve is provided with a guide sleeve having a guide hole, and the transmission shaft is arranged in the guide hole.

9. The oil gun admission device based on boiler operation state monitoring according to claim 7, characterized in that, The observation opening is circular.

10. The oil gun admission device based on boiler operation state monitoring according to claim 1, characterized in that, ​

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