Safe lifting device for detecting high water cooling wall in boiler

Abstract

The utility model discloses a safe lifting device for detecting a high water cooling wall in a boiler, and relates to the technical field of incinerators of waste incineration power plants. A safe lifting device for detecting a high water cooling wall in a boiler comprises a hanging basket, an H-shaped steel beam, a lead screw, a motor, a winch, an adjusting block and a movable limiting mechanism. The H-shaped steel beam is fixed to the outer side of the top of the incineration boiler, and the tail end of the H-shaped steel beam penetrates through an access hole in a flue and extends into the flue of the incineration boiler. The H-shaped steel beam comprises a web and wing plates fixed to the upper side and the lower side of the web. A first fixing plate and a second fixing plate are fixed to the two sides of the bottom of the H-shaped steel beam. The two ends of the lead screw are in threaded connection with the first fixing plate and the second fixing plate. The utility model designs the safety lifting device for detecting the water-cooled wall at the high position in the boiler, so that the risk caused by erecting and disassembling a scaffold when the boiler is shut down for overhauling is solved, the construction cost is reduced, the maintenance period is shortened, and the economic benefit is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of incinerators in waste incineration power plants, and particularly relates to a safety lifting device for detecting the water-cooled wall at a high position inside a boiler. Background Art

[0002] The first flue of the incinerator in China's waste incineration power plants is vertically arranged, and the tonnage of the incinerator ranges from the smallest single unit of 150 tons to 1000 tons. The first flue within this range is vertically arranged, and the height ranges from 25 meters to 60 meters.

[0003] After the incinerator has been in long-term operation, it needs to be shut down for maintenance. During the maintenance period, the key inspection parts are the corrosion and thinning conditions of the water-cooled wall inside the first flue of the incinerator, and the thickness measurement of the top water-cooled wall is carried out. The conventional inspection method for this work is to build a scaffold inside the furnace, which requires manual handling during the building process. However, due to the poor working environment inside the waste incinerator, there are many toxic and harmful gases, and it is a confined space. The construction process is relatively dangerous, and the shutdown maintenance period of the incinerator is tight. It takes a long time to build and dismantle the scaffold, wasting a large amount of labor costs, maintenance period, and unable to ensure the safety of personnel.

[0004] Therefore, how to solve the problems of inspection and maintenance of the top water-cooled wall inside the first flue of the incinerator in the waste incineration power plant and reduce the labor cost and maintenance period is an urgent technical problem that needs to be solved by the technical personnel in this field at present.

[0005] The information disclosed in this background art section is only intended to enhance the overall understanding of the utility model and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0006] In view of the above technical problems, an embodiment of the utility model provides a safety lifting device for detecting the water-cooled wall at a high position inside a boiler to solve the problems raised in the above background art.

[0007] The utility model provides the following technical solutions:

[0008] A safety lifting device for detecting the water-cooled wall at a high position inside a boiler includes a hanging basket, an H-shaped steel beam, a lead screw, a motor, a hoist, an adjusting block, and a moving limit mechanism;

[0009] The H-shaped steel beam is fixed on the outer side of the top of the incineration boiler, and the end of the H-shaped steel beam passes through the inspection opening on the first flue and extends into the first flue of the incinerator;

[0010] The H-shaped steel beam includes a web and flange plates fixed on both the upper and lower sides of the web;

[0011] The first fixed plate and the second fixed plate are fixed on both sides of the bottom of the H-shaped steel beam; both ends of the lead screw are threadedly connected to the first fixed plate and the second fixed plate;

[0012] The motor is fixed on the outside of the second fixed plate, and the main shaft of the motor is fixedly connected to one end of the lead screw;

[0013] The moving limit mechanism includes side plates, rollers, main bolts, and auxiliary bolts;

[0014] The side plates include two pieces, and the two side plates are located on the left and right sides of the web on the H-shaped steel beam;

[0015] The bottom between the two side plates is locked and connected by the main bolt, and the two sides between the two side plates are locked and connected by the auxiliary bolt;

[0016] Rollers are arranged at the top position on the inner side of the side plates, and the rollers are erected and limited on the flange on the H-shaped steel beam;

[0017] The adjusting block is fixed on the main bolt, and the adjusting block is threadedly penetrated and connected with the lead screw;

[0018] The winch is fixed at the bottom of the adjusting block, and the lower end of the steel wire rope of the winch is fixedly connected to the hanging basket.

[0019] Preferably, a U-shaped hanging rod is hinged on the hanging basket, and the U-shaped hanging rod is fixedly connected to the lower end of the steel wire rope of the winch.

[0020] Preferably, the hanging basket is welded by pipe fittings.

[0021] A safety lifting device for high-altitude water-cooled wall detection inside a boiler provided by an embodiment of the present invention has the following beneficial effects: The present invention designs a safety lifting device for high-altitude water-cooled wall detection inside a boiler, which solves the risks brought by the erection and dismantling of scaffolding during furnace shutdown maintenance, reduces construction costs, shortens the maintenance period, and saves economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a structural schematic diagram of the first angle of the present invention;

[0023] Figure 2 is a structural schematic diagram of the second angle of the present invention;

[0024] Figure 3 is a structural schematic diagram of the third angle of the present invention;

[0025] Figure 4 is the present invention Figure 2 Partial enlarged view of A in;

[0026] Figure 5 is the present invention Figure 3 Partial enlarged view of B in;

[0027] Figure 6 This is a demonstration diagram of the equipment of the present utility model installed on the outer side of the top of an incineration boiler. Specific implementation manners

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present utility model.

[0029] Refer to Figures 1 - 6 。

[0030] In view of the problems mentioned in the above background technology, the embodiments of the present utility model provide a safety lifting device for detecting the high-place water-cooled wall inside a boiler to solve the above technical problems. The technical solutions are as follows:

[0031] A safety lifting device for detecting the high-place water-cooled wall inside a boiler includes a hanging basket 110, an H-shaped steel beam 120, a lead screw 130, a motor 180, a hoist 150, an adjusting block 160, and a moving limit mechanism;

[0032] The H-shaped steel beam 120 is fixed on the outer side of the top of the incineration boiler. The end of the H-shaped steel beam 120 passes through an inspection opening on a flue and extends into the interior of a flue of the incinerator; the inspection opening is in a closed state when not in the inspection state; a notch is adaptively opened at the top of the door panel of the inspection opening for the H-shaped steel beam 120 to pass through;

[0033] The H-shaped steel beam 120 includes a web 121 and flange plates 122 fixed on the upper and lower sides of the web 121;

[0034] First fixing plates 141 and second fixing plates 142 are fixed on both sides of the bottom of the H-shaped steel beam 120; both ends of the lead screw 130 are threadedly connected to the first fixing plate 141 and the second fixing plate 142; the second fixing plate 142 is located on the outer side of the top of the incineration boiler;

[0035] The motor 180 is fixed on the outer side of the second fixing plate 142, and the main shaft of the motor 180 is fixedly connected to one end of the lead screw 130;

[0036] The moving limit mechanism includes side plates 171, rollers 172, main bolts 174, and auxiliary bolts 173;

[0037] The side plates 171 include two pieces, and the two side plates 171 are located on the left and right sides of the web 121 on the H-shaped steel beam 120;

[0038] The bottom between the two side plates 171 is tightly connected by the main bolts 174, and the two sides between the two side plates 171 are tightly connected by the auxiliary bolts 173;

[0039] At the inner top position of the side plate 171, a roller 172 is provided, and the roller 172 is placed and limited on the wing plate 122 of the H-shaped steel beam 120;

[0040] The adjusting block 160 is fixed on the main bolt 174, and the adjusting block 160 is threadedly penetrated and connected with the lead screw 130;

[0041] The winch 150 is fixed at the bottom of the adjusting block 160, and the lower end of the steel wire rope 151 of the winch 150 is fixedly connected to the hanging basket 110; The winch is grounded and a leakage protector is installed.

[0042] In this embodiment, a U-shaped hanging rod 111 is hinged on the hanging basket 110, and the U-shaped hanging rod 111 is fixedly connected to the lower end of the steel wire rope 151 of the winch 150.

[0043] The working method of a safety lifting device for high-altitude water-cooled wall detection inside a boiler provided by the embodiment of the present utility model is as follows:

[0044] 1. The staff enters the hanging basket 110; At the same time, in order to improve safety, the position of the steel wire rope of the hanging basket and the winch is tied with a cat's paw buckle, and it is ensured that the staff wears a five-point safety belt. One hook of the safety belt is hung on the anti-falling device to prevent personnel from falling, and the other hook of the safety belt is hung on the steel wire rope;

[0045] 2. The winch 150 works to lift the hanging basket 110, and then the motor 180 works to control the adjusting block 160 and the hanging basket 110 to move towards the incineration boiler, and passes through the flue inspection port to send the staff into a flue, completing the lifting and moving operations of the hanging basket 110.

[0046] It should be noted that in the present utility model, the winch adopts: the lift height can be 50 meters, the lifting weight is 3 tons, and the diameter of the steel wire rope is 8MM; The pulley weighs 3 tons and is equipped with a U-shaped anti-detaching rope protection device.

[0047] A safety lifting device for high-altitude water-cooled wall detection inside a boiler provided by the embodiment of the present utility model has the following beneficial effects: In the present utility model, a safety lifting device for high-altitude water-cooled wall detection inside a boiler is designed, which solves the risks brought by the erection and dismantling of the scaffolding during shutdown maintenance, reduces the construction cost, shortens the maintenance period, and saves economic benefits.

[0048] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units. They may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0049] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. It may be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0050] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solution of the present utility model and the concept of the present utility model, and all such changes or substitutions should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A safety lifting device for detecting the high-position water-cooled wall inside a boiler, characterized in that, It includes a hanging basket, an H-shaped steel beam, a lead screw, a motor, a hoist, an adjustment block and a moving limit mechanism; The H-shaped steel beam is fixed on the outer side of the top of the incineration boiler, and the end of the H-shaped steel beam extends through an inspection opening on a flue to the inside of a flue of the incinerator; The H-shaped steel beam includes a web and flange plates fixed on both the upper and lower sides of the web; First fixing plates and second fixing plates are fixed on both sides of the bottom of the H-shaped steel beam; both ends of the lead screw are threadedly connected to the first fixing plate and the second fixing plate; The motor is fixed on the outer side of the second fixing plate, and the main shaft of the motor is fixedly connected to one end of the lead screw; The moving limit mechanism includes side plates, rollers, main bolts and auxiliary bolts; There are two side plates, and the two side plates are located on the left and right sides of the web on the H-shaped steel beam; The bottoms between the two side plates are locked and connected by main bolts, and the two sides between the two side plates are locked and connected by auxiliary bolts; Rollers are arranged at the top inner side positions of the side plates, and the rollers are placed and limited on the flange plates on the H-shaped steel beam; The adjustment block is fixed on the main bolt, and the adjustment block is threadedly penetrated and connected with the lead screw; The hoist is fixed at the bottom of the adjustment block, and the lower end of the steel wire rope of the hoist is fixedly connected to the hanging basket.

2. The safety lifting device for high-altitude water-cooled wall inspection inside the boiler according to claim 1, characterized in that, A U-shaped hanging rod is hinged on the hanging basket, and the U-shaped hanging rod is fixedly connected to the lower end of the steel wire rope of the hoist.

3. The safety lifting device for high-altitude water-cooled wall inspection inside the boiler according to claim 1, characterized in that, The hanging basket is welded by pipe fittings.

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