Online real-time leakage detection device for bag-type dust collector of waste incineration power plant

Abstract

The utility model relates to the field of waste incineration power generation, in particular to an online real-time leakage detection device for a bag-type dust collector of a waste incineration power plant. Comprising a bag-type dust collector and a controller. An observation window is arranged on the side edge or the top of the upper box body of the bag-type dust collector, and a camera and a searchlight connected to the controller are arranged above the observation window. An observation window is provided with a transparent upper cover plate, a sleeve and the like, and a protective cylinder protects a camera, a searchlight, an air branch pipe, a header pipe and related valves. The device realizes on-line real-time leakage detection in the bag-type dust collector, and has the beneficial effects of improving the stability and reliability of equipment operation, ensuring normal work, prolonging the service life of the equipment, reducing dust influence, enhancing controllability and adaptability, reducing the operation and maintenance cost, improving the observation safety and definition, ensuring the operation safety and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of garbage incineration, especially to a real-time leakage detection device for bag filter of garbage incineration power plant. BACKGROUND

[0002] At present, garbage incineration plants generally adopt the flue gas treatment process of "SNCR denitration + semi-dry reaction tower deacidification + activated carbon adsorption + dry deacidification + bag filter + SCR denitration". The bag filter is a core equipment for removing particulate matter in the process, which is important not only for dust removal but also for the removal of acid gases, heavy metals and dioxins in the original flue gas by forming a filter layer on the outer wall of the filter bag with the pre-end of the flue gas. Therefore, the bag filter is directly related to the legal and compliant emission of garbage incineration flue gas, and the maintenance of the bag is a key work in daily maintenance.

[0003] In daily operation, high dust and white smoke from the chimney may suspect that the filter bag leaks, and it is necessary to close and isolate the chamber by closing the inlet and outlet valves of each chamber one by one, open the manhole door or the upper box cover to check the inside of the upper box, and observe the dust accumulation on the perforated plate or nozzle to determine whether the filter bag leaks. The work load is huge, and in the process of inspection, the manhole door is always open, cold air is continuously sucked into the box from the manhole door, and the alternating cold and hot causes the corrosion of the box plate, shortening the service life of the bag filter. SUMMARY

[0004] The utility model aims at solving the technical problem that the prior art cannot check the leakage of the filter bag of the bag filter, and proposes a real-time leakage detection device for the bag filter of the garbage incineration power plant.

[0005] The technical problem of the utility model is solved by the following technical scheme:

[0006] A real-time leakage detection device for the bag filter of the garbage incineration power plant, comprising a bag filter and a controller, an observation window is arranged on the side edge or top of the upper box of the bag filter, a camera and a searchlight are arranged above the observation window, the camera and the searchlight are used to observe the inside of the bag filter, and the camera and the searchlight are connected to the controller.

[0007] In some embodiments, the following technical features are further included:

[0008] The protection cylinder is fixedly connected with the pre-process, one end of the protection cylinder is open, the camera and the searchlight are located in the protection cylinder, the camera and the searchlight face the opening direction of the protection cylinder, the opening direction of the protection cylinder faces the observation window, and the other end of the protection cylinder is communicated with a first air branch pipe.

[0009] In some embodiments, the observation window comprises a transparent upper cover plate, a sleeve, the sleeve is provided with a sealing ring, and the transparent upper cover plate is hinged to the sleeve through a hinge.

[0010] In some embodiments, the transparent upper cover plate is provided with a handle, and the upper cover plate is made of tempered borosilicate glass.

[0011] In some embodiments, the sleeve is fixedly connected to the upper box body of the bag-type dust collector, a plurality of lifting ring locking nuts and lifting ring locking screws are arranged on the outer wall of the sleeve, and the lifting ring locking nuts and the lifting ring locking screws are used for fixing the transparent upper cover plate on the sleeve.

[0012] In some embodiments, the air inlet end of the first air branch pipe is communicated with the air outlet end of the air main pipe, the air inlet end of the air main pipe is communicated with the pre-process, the air outlet end of the air main pipe is also communicated with the air inlet end of the second air branch pipe, and the air outlet end of the second air branch pipe is communicated with the inner wall of the sleeve.

[0013] In some embodiments, the air main pipe is provided with a compressed air main valve, the first air branch pipe is provided with a compressed air to camera ball valve, and the second air branch pipe is provided with a compressed air to observation window ball valve.

[0014] The beneficial effects of the present application compared with the prior art include:

[0015] The online real-time leakage detection device for the bag-type dust collector of the waste incineration power plant provided by the present application can monitor the internal condition of the upper box body of the bag-type dust collector during normal operation of the bag-type dust collector, can check in real time whether the filter bag of the bag-type dust collector is detached, whether the filter bag and the filter bag are leaked, whether the pulse pipe is dropped and the like, so that the workload of opening the bag-type dust collector for inspection is reduced, and the corrosion of the bag-type dust collector caused by cold and hot alternation during opening is reduced, and the service life of the bag-type dust collector is prolonged.

[0016] Other beneficial effects of the embodiments of the present application will be further described below. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A schematic view of the online real-time leakage detection device for the bag-type dust collector of the waste incineration power plant in the embodiments of the present application.

[0018] Figure 2 A schematic view of the observation window of the online real-time leakage detection device for the bag-type dust collector of the waste incineration power plant in the embodiments of the present application.

[0019] In the figure: 1, upper box body; 2, observation window; 21, sleeve; 22, transparent upper cover plate; 23, hinge; 24, lifting ring locking nut and its lifting ring locking screw; 25, sealing ring; 26, handle; 3, camera and searchlight; 4, compressed air main valve; 5, compressed air to observation window ball valve; 6, compressed air to camera ball valve; 7, air main pipe; 8, first air branch pipe; 9, second air branch pipe; 10, protection cylinder. DETAILED DESCRIPTION

[0020] The following detailed description of the embodiments of the present application is provided. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope of the present application and its applications.

[0021] It should be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the connection can be for fixing or for coupling or for communication.

[0022] It should be understood that the terms "upper", "front", "top", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0023] In addition, the terms "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0024] In order to solve the technical problem that in daily operation, if it is suspected that the filter bag of the cloth bag dust collector leaks, the inlet and outlet valves of the bin need to be closed one by one to isolate the bin chamber and check, which is a huge workload, and the opening of the manhole door during the inspection causes cold and hot alternation, resulting in corrosion of the box plate of the box body and shortening the service life of the cloth bag dust collector, the embodiments of the present application provide an online real-time leak detection device for a cloth bag dust collector of a waste incineration power plant, as shown in the figure, comprising a cloth bag dust collector and a controller, an observation window 2 is arranged on the side edge or top of the upper box body 1 of the cloth bag dust collector, a camera and a searchlight 3 are arranged above the observation window 2, the camera and the searchlight 3 are used for observing the inside of the cloth bag dust collector through the observation window 2, and the camera and the searchlight 3 are connected to the controller. Figure 1

[0025] In the preferred embodiments, as shown in the figure,​Figure 2 As shown, the observation window 2 comprises a transparent upper cover plate 22, a sleeve 21, the sleeve 21 is provided with a sealing ring 25, and the transparent upper cover plate 22 is hinged to the sleeve 21 through a hinge 23. The transparent upper cover plate 22 is provided with a handle 26, and the upper cover plate is made of tempered borosilicate glass. The sleeve 21 is fixedly connected with the upper box body 1 of the cloth bag dust collector, and the outer wall of the sleeve 21 is provided with a plurality of lifting ring locking nuts and lifting ring locking screws 24, which are used for fixing the transparent upper cover plate 22 on the sleeve 21.

[0026] The protection cylinder 10 is fixedly connected with the preceding process, one end of the protection cylinder 10 is open, the camera and the searchlight 3 are located in the protection cylinder 10, the camera and the searchlight 3 are directed to the opening direction of the protection cylinder 10, and the opening direction of the protection cylinder 10 is directed to the observation window, and the other end of the protection cylinder 10 is communicated with the first air branch pipe 8.

[0027] The air inlet end of the first air branch pipe 8 is communicated with the air outlet end of the air main pipe 7, the air inlet end of the air main pipe 7 is communicated with the preceding process, the air outlet end of the air main pipe 7 is also communicated with the air inlet end of the second air branch pipe 9, and the air outlet end of the second air branch pipe 9 is communicated with the inner wall of the sleeve 21. The air main pipe 7 is provided with a compressed air total valve 4, the first air branch pipe 8 is provided with a compressed air to camera ball valve 6, and the second air branch pipe 9 is provided with a compressed air to observation window ball valve 5.

[0028] In the embodiment of the utility model, the observation window 2 is installed on the side edge or the top of the cloth bag dust collector upper box body 1, and the camera and the searchlight 3 are arranged beside the observation window 2, whether the operation of the cloth bag upper box body 1 (clean gas chamber) is normal, whether there is dust leakage, whether the pulse tube falls and other faults are observed in real time through the observation window 2 and the camera, and then the faults are treated according to the needs.

[0029] In the preferred embodiment, the observation window 2 is installed on the side edge or the top of the cloth bag dust collector, the main body of the observation window 2 is transparent tempered borosilicate glass embedded in a circular ring carbon steel, the sleeve 21 is connected to the cloth bag upper box body 1 through welding, the sleeve 21 and the circular ring carbon steel are connected through a hinge, the transparent upper cover plate 22 is locked to the sleeve through a lifting ring locking nut, a sealing ring 25 is arranged on the contact surface of the transparent upper cover plate 22 and the sleeve 21 to ensure close contact and air tightness. A handle 26 is arranged on the transparent upper cover plate 22 of the observation window 2 to facilitate the regular opening of the transparent upper cover plate 22 for cleaning the inner glass. A compressed air total valve 4 is arranged on the side of the sleeve 21, and a compressed air to observation window ball valve 5 is arranged, compressed air is used to blow the glass, the glass surface is kept clean in real time, and the visual effect is good.

[0030] A protection cylinder 10 is arranged beside the observation window 2, the camera and the searchlight 3 are installed in the protection cylinder 10, and compressed air is introduced into the protection cylinder 10 to play a cooling and blowing role.

[0031] In the operation process of the cloth bag dust collector in the embodiment of the utility model, the compressed air total valve 4 is opened, the compressed air reaches the observation window ball valve 5, the compressed air reaches the camera ball valve 6, the compressed air is introduced into the observation window 2 and the camera and the searchlight 3, which are used for cooling and protecting the camera, and the camera lens and the observation window glass can be swept in real time, so that the visibility is ensured. The camera and the searchlight 3 are opened, the camera image is collected and transmitted to the control room screen, the situation in the cloth bag upper box 1 can be observed through the camera image, whether there is dust leakage, pulse pipe leakage and other defects can be judged, whether there is a defect in the cloth bag upper box 1 can be evaluated in real time, and whether the cloth bag dust removal efficiency is normal.

[0032] When abnormal conditions such as high dust concentration, large cloth bag pressure difference or white smoke from the chimney occur, on the one hand, the situation of each chamber can be observed through the camera, and on the other hand, the situation inside the cloth bag upper box can be confirmed through the observation window 2 transparent upper cover plate by manually holding a flashlight, so that the defects can be accurately judged and the specific isolation chamber can be handled.

[0033] The hanging ring locking nut is loosened periodically, the transparent upper cover plate 22 is opened through the handle, the transparent glass is cleaned and wiped, the visibility is ensured, the sealing ring 25 needs to be checked and replaced periodically, and the observation window is ensured not to leak air.

[0034] In the embodiment of the utility model, the inside situation of the cloth bag dust collector can be observed in real time through the camera and the observation window, the cloth bag can be maintained more conveniently and quickly, the cloth bag dust collector which room has a fault can be judged quickly, the specific reasons are that the filter bag falls off, the filter bag leaks, the pulse pipe falls off and the like, the defects can be accurately and quickly judged, the defect handling efficiency is greatly improved, the manual labor is saved, and the corrosion hazard of the cloth bag box caused by a large number of opening and checking of cold air suction is reduced.

[0035] Compared with the prior art, the embodiment of the utility model has the following advantages:

[0036] 1、The embodiment of the utility model realizes online real-time leakage detection of the inside of the cloth bag dust collector, can timely find cloth bag leakage problems, and improves the stability and reliability of equipment operation.

[0037] 2、The embodiment of the utility model is convenient to observe and has good sealing property through the design of the observation window, including the transparent upper cover plate, the sleeve and the hinge and the like, and guarantees the normal work of the dust collector.

[0038] 3、The embodiment of the utility model protects the camera and the searchlight through the protection cylinder, prolongs the service life of the equipment, and guarantees clear observation of the inside situation.

[0039] 4、The embodiment of the utility model provides a clean air environment for the camera, the observation window and the like through the setting of the air branch pipe and the main pipe, and reduces the influence of dust on the observation effect.

[0040] 5. The embodiment of the utility model discloses through the setting of relevant valve, it is convenient to control and adjust air flow, has strengthened the controllability and adaptability of system.

[0041] 6. The embodiment of the utility model discloses whole set device structure is reasonable, and installation and maintenance are more convenient, help to reduce the operation and maintenance cost of equipment.

[0042] 7. The embodiment of the utility model discloses the toughened borosilicate glass as the upper cover plate, has good strength and transparency, has improved the safety and definition of observation.

[0043] 8. The embodiment of the utility model discloses through the design of lifting ring locking nut and its screw, make the fixing of transparent upper cover plate firm and reliable, guarantee the safety in the operation of equipment.

[0044] The above content is further detailed description of the utility model in combination with specific / preferred embodiment, and cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary skilled person in the art to which the utility model belongs, on the premise of not departing from the concept of the utility model, it can make several substitutions or modifications to these described embodiments, and these substitution or modification manners should be regarded as belonging to the protection scope of the utility model. In the description of the specification, the description of reference terms "an embodiment", "some embodiments", "preferred embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way. In the case of not mutually contradictory, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the characteristics of different embodiments or examples. Although the embodiments of the utility model and its advantages have been described in detail, it should be understood that various changes, substitutions and modifications can be made in this paper without departing from the protection scope of the patent application.

Claims

1. A bag filter on-line real-time leak detection device for waste incineration power plants, comprising a bag filter and a controller, characterized in that, The observation window is arranged on the side or top of the upper box of the bag dust collector, a camera and a searchlight are arranged above the observation window, the camera and the searchlight are used for observing the inside of the bag dust collector, and the camera and the searchlight are connected to a controller.

2. The online real-time leak detection device for bag-type dust collectors in waste incineration power plants according to claim 1, characterized in that, The protection cylinder is fixedly connected with the preceding process, one end of the protection cylinder is open, the camera and the searchlight are located in the protection cylinder, the camera and the searchlight face the open direction of the protection cylinder, the open direction of the protection cylinder faces the observation window, and the other end of the protection cylinder is communicated with the first air branch pipe.

3. The online real-time leak detection device for bag-type dust collectors in waste incineration power plants according to claim 1, characterized in that, The observation window comprises a transparent upper cover plate and a sleeve, the sleeve is provided with a sealing ring, and the transparent upper cover plate is hinged to the sleeve through a hinge.

4. The online real-time leak detection device for bag-type dust collectors in waste incineration power plants according to claim 3, characterized in that, The transparent upper cover plate is provided with a handle, and the upper cover plate is made of tempered borosilicate glass.

5. The online real-time leak detection device for bag-type dust collectors in waste incineration power plants according to claim 3, characterized in that, The sleeve is fixedly connected with the upper box of the bag dust collector, a plurality of lifting ring locking nuts and lifting ring locking screws are arranged on the outer wall of the sleeve, and the lifting ring locking nuts and the lifting ring locking screws are used for fixing the transparent upper cover plate on the sleeve.

6. The online real-time leak detection device for bag-type dust collectors in waste incineration power plants according to claim 2, characterized in that, The air inlet end of the first air branch pipe is communicated with the air outlet end of an air main pipe, the air inlet end of the air main pipe is communicated with the preceding process, the air outlet end of the air main pipe is also communicated with the air inlet end of a second air branch pipe, and the air outlet end of the second air branch pipe is communicated with the inner wall of the sleeve.

7. The online real-time leak detection device for bag-type dust collectors in waste incineration power plants according to claim 6, characterized in that, The air main pipe is provided with a compressed air main valve, the first air branch pipe is provided with a compressed air to camera ball valve, and the second air branch pipe is provided with a compressed air to observation window ball valve.

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