Waste heat boiler convenient to clean

Abstract

The utility model discloses a waste heat boiler convenient to clean, which belongs to the technical field of waste heat boilers convenient to clean and comprises a boiler body, cleaning cavity frames are distributed on two sides of the boiler body, one end of the boiler body is connected with a laminated chimney, and each cleaning cavity frame comprises a boiler cavity, a heat insulation groove, a loop pipe, a condensation pipe, a rotating shaft, a boiler cover plate and a pull rod. Heat insulation grooves are formed in the inner walls of the two ends of the furnace cavity, and loop pipes are distributed at the middle end of the furnace cavity. According to the waste heat boiler convenient to clean, an internal extension structure is formed through the furnace cover plates capable of being unfolded on the two sides, the furnace cover plates are more convenient to unfold in cooperation with a pull rod, the internal structure of the furnace cavity is exposed through the unfolding structure, and therefore a user can conveniently clean the inner wall of the internal boiler and a distributed loop pipe assembly; and each group of loop pipes adopts an integrated design and is assembled and disassembled by matching with screws, so that the multiple groups of loop pipes can be independently disassembled, overhauled, maintained and cleaned, and the whole structure is transparent and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat boilers, in particular to a waste heat boiler that is convenient for cleaning. Background Technique

[0002] A waste heat boiler refers to a boiler that heats water to a certain temperature by using the waste heat in various industrial processes, waste gas, waste materials or waste liquid, and the heat generated after the combustion of combustible substances therein. A fuel boiler, a gas boiler, and a coal-fired boiler with waste heat recovery in the smoke box and flue are also called waste heat boilers. The waste heat boiler can produce hot water or steam through waste heat recovery for use in other sections.

[0003] The structure of a traditional waste heat boiler consists of a drum, a movable smoke hood, a furnace inlet section flue, an inclined 1 section flue, an inclined 2 section flue, a final 1 section flue, a final 2 section flue, a feeding pipe or trough, an oxygen lance port, a nitrogen sealing device and a nitrogen sealing plug, a manhole, a differential pressure tapping device, supports and hangers of the flue, etc. It is divided into six circulation loops, and each circulation loop consists of a downcomer and a riser. The feed water of each section of the flue is introduced from the drum through the downcomer into the lower header of each flue and then enters each heating surface. After the water passes through the heating surface, steam is generated and enters the inlet header, and then is introduced into the drum by the riser. The flues are all connected by flanges.

[0004] The internal structure of the above waste heat boiler has more loops and is divided into three sections of high, medium and low pressure. The downcomers and risers of each loop structure are all in a connected state with the waste heat boiler structure itself. When it is necessary to clean the impurities attached to the preheated flue gas on the inner wall of the boiler during long-term use, it is necessary to remove each loop one by one, and the boiler body is mostly a sealed integral structure, which is not easy to disassemble and clean. Therefore, we propose a waste heat boiler that is convenient for cleaning. Content of the Utility Model

[0005] This part of the content of the present application is used to briefly introduce the concepts, which will be described in detail in the subsequent detailed implementation part. This part of the content of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0006] The purpose of the utility model is to provide a waste heat boiler that is convenient for cleaning, so as to solve the problems raised in the above background technique.

[0007] To achieve the above object, the utility model provides the following technical solutions: a waste heat boiler facilitating cleaning, comprising a furnace body, cleaning cavity frames are distributed on both sides of the furnace body, and a laminated chimney is connected to one end of the furnace body. The cleaning cavity frame includes a furnace cavity, a heat insulation groove, a return pipe, a condensing pipe, a rotating shaft, a furnace cover plate and a pull rod. Heat insulation grooves are opened on the inner walls at both ends of the furnace cavity. A return pipe is distributed in the middle of the furnace cavity, and a condensing pipe is connected to the bottom end of the return pipe. Rotating shafts are distributed on both sides of the furnace cavity, and a furnace cover plate is connected to one side of the rotating shaft. A pull rod is connected to the outer wall of the furnace cover plate.

[0008] Further, the furnace cover plate forms a rotating structure with the furnace cavity through the rotating shaft, and the furnace cover plate is engaged with both sides of the furnace cavity.

[0009] Further, the return pipes are equidistantly distributed along the middle of the furnace cavity, and the return pipes are threadedly connected to the top of the furnace cavity.

[0010] Further, the furnace body includes a main frame, a smoke inlet, an exhaust pipe and a bracket. A smoke inlet is opened at one end of the main frame. An exhaust pipe is connected to the other end of the main frame, and brackets are distributed at the bottom end of the main frame.

[0011] Further, the main frame and the bracket are fixedly connected, and the smoke inlet and the exhaust pipe are communicated with the main frame.

[0012] Further, the laminated chimney includes a chimney pipe, a smoke inlet, laminated pipes, rubber rings and snap rings. A smoke inlet is opened on one side of the chimney pipe. Laminated pipes are arranged at the top of the chimney pipe, rubber rings are arranged at the bottom ends of the laminated pipes, and snap rings are arranged at the top ends of the laminated pipes.

[0013] Further, the laminated pipes are engaged with the chimney pipe through the snap rings, and the laminated pipes are equidistantly distributed along the middle of the chimney pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] For this waste heat boiler facilitating cleaning, an internal extension structure is formed by the furnace cover plates that can be unfolded on both sides, and the pull rod is used to make the unfolding operation of the furnace cover plates more convenient. The internal structure of the furnace cavity is exposed through the unfolding structure, so that it is convenient for users to clean the inner wall of the internal boiler and the distributed return pipe assemblies. Each group of return pipes adopts an integrated design and is disassembled and installed with screws, so that multiple groups of return pipes can be separately disassembled, repaired, maintained and cleaned. The overall structure is transparent and convenient;

[0016] In order to improve the stability of the overall boiler during the waste heat recovery process, during the use of this furnace body, it can be composed of the smoke inlets and the exhaust pipes at both ends to form an overall preheating and stable treatment process, and cooperate with the brackets on both sides at the bottom end to form a stable support, further improving the use stability of the overall boiler;

[0017] Finally, in order to improve the cleanliness and convenience of the boiler flue gas exhaust process, during the boiler flue gas exhaust process, the flue gas can be exhausted through the smoke inlet opened on one side of the chimney pipe, and the height of the chimney pipe can be adjusted by a combination of multiple sets of laminated pipes, which is convenient for adjusting the height. Moreover, each set of laminated pipes is combined by snap rings, which is convenient for disassembly, assembly and subsequent cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the furnace body of the present utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the unfolded cleaning cavity frame of the present utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the laminated chimney of the present utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the laminated pipe in the laminated chimney of the present utility model.

[0022] In the figure: 1. Furnace body; 101. Main frame; 102. Smoke inlet; 103. Exhaust pipe; 104. Support; 2. Cleaning cavity frame; 201. Furnace cavity; 202. Heat insulation groove; 203. Return pipe; 204. Condensing pipe; 205. Rotating shaft; 206. Furnace cover plate; 207. Pull rod; 3. Laminated chimney; 301. Chimney pipe; 302. Chimney opening; 303. Laminated pipe; 304. Rubber ring; 305. Snap ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Hereinafter, embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0024] In addition, it should be noted that for the sake of convenience of description, only parts related to the relevant invention are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0025] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependent relationships.

[0026] It should be noted that the modifications of "one" and "multiple" mentioned in this disclosure are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0027] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0028] The present utility model provides a waste heat boiler that is convenient for cleaning as Figures 1-4 shown, including a furnace body 1. Cleaning cavity frames 2 are distributed on both sides of the furnace body 1, and a laminated chimney 3 is connected to one end of the furnace body 1. The cleaning cavity frame 2 includes a furnace cavity 201, a heat insulation groove 202, a return pipe 203, a condensation pipe 204, a rotating shaft 205, a furnace cover plate 206, and a pull rod 207. Heat insulation grooves 202 are provided on the inner walls at both ends of the furnace cavity 201, a return pipe 203 is distributed in the middle of the furnace cavity 201, and a condensation pipe 204 is connected to the bottom end of the return pipe 203. Rotating shafts 205 are distributed on both sides of the furnace cavity 201, and a furnace cover plate 206 is connected to one side of the rotating shaft 205. A pull rod 207 is connected to the outer wall of the furnace cover plate 206;

[0029] To improve the cleaning convenience of the overall boiler, as Figure 2 shown, this waste heat boiler forms an internal extension structure through the furnace cover plates 206 that can be unfolded on both sides, and the cooperation with the pull rod 207 makes the unfolding operation of the furnace cover plates 206 more convenient. Through the unfolding structure, the internal structure of the furnace cavity 201 is exposed, so that it is convenient for users to clean the inner wall of the internal boiler and the distributed return pipe 203 components. Each group of return pipes 203 adopts an integrated design and is disassembled and installed with screws, so that multiple groups of return pipes 203 can be separately detached for maintenance and cleaning, and the overall structure is transparent and convenient.

[0030] As Figure 1 shown, the furnace body 1 includes a main frame 101, a smoke inlet 102, an exhaust pipe 103, and a support 104. A smoke inlet 102 is provided at one end of the main frame 101, an exhaust pipe 103 is connected to the other end of the main frame 101, and supports 104 are distributed at the bottom end of the main frame 101;

[0031] To improve the stability of the overall boiler during the waste heat recovery process, as Figure 1 shown, the main frame 101 and the support 104 are fixedly connected, and the smoke inlet 102 and the exhaust pipe 103 are communicated with the main frame 101. During the use of this furnace body 1, it can be composed of the smoke inlet 102 and the exhaust pipe 103 at both ends to form an overall preheating and stable treatment process, and cooperate with the supports 104 on both sides of the bottom end to form a stable support, further improving the use stability of the overall boiler.

[0032] As Figures 3-4As shown in the figure, the laminated chimney 3 includes a chimney pipe 301, a chimney opening 302, a laminated pipe 303, a rubber ring 304 and a snap ring 305. A chimney opening 302 is provided on one side of the chimney pipe 301. A laminated pipe 303 is provided at the top of the chimney pipe 301. A rubber ring 304 is provided at the bottom of the laminated pipe 303. A snap ring 305 is provided at the top of the laminated pipe 303;

[0033] Finally, in order to improve the cleanliness and convenience of the boiler flue gas exhaust process, as Figures 3-4 shown in the figure, the laminated pipe 303 is engaged with the chimney pipe 301 through the snap ring 305, and the laminated pipes 303 are equidistantly distributed along the middle end of the chimney pipe 301. During the boiler flue gas exhaust process, the flue gas can be exhausted through the chimney opening 302 provided on one side of the chimney pipe 301. The height of the chimney pipe 301 can be adjusted by combining multiple groups of laminated laminated pipes 303, which is convenient for adjusting the height. Each group of laminated pipes 303 is combined by the snap ring 305, which is convenient for disassembly, assembly and subsequent cleaning.

[0034] In summary, when the easy-to-clean waste heat boiler is in use, first, when using this boiler for preheating recovery treatment, connect the smoke inlet 102 at one end of the main frame 101 to the gas turbine, and then connect the condensate pipe 204 at the bottom to the condenser part of the low-pressure steam turbine unit of the gas turbine, so as to form a connection for recycling waste heat. After long-term use, the user can first unscrew the screws on the surface of the furnace cover plate 206, unfold the two side furnace cover plates 206 through the pull rod 207, expose the internal structure of the furnace cavity 201 through the unfolding structure, and then the user can clean the inner wall of the internal boiler and the distributed loop pipe 203 components. Each group of loop pipes 203 adopts an integrated design, and the screws of the loop pipes 203 can be disassembled at the same time for individual cleaning to complete the treatment process.

[0035] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A waste heat boiler facilitating cleaning, comprising a furnace body (1), characterized in that: On both sides of the furnace body (1), cleaning chamber frames (2) are distributed, and a laminated chimney (3) is connected to one end of the furnace body (1). The cleaning chamber frame (2) includes a furnace chamber (201), a heat insulation groove (202), a return pipe (203), a condensation pipe (204), a rotating shaft (205), a furnace cover plate (206), and a pull rod (207). Heat insulation grooves (202) are provided on the inner walls at both ends of the furnace chamber (201). The return pipe (203) is distributed in the middle of the furnace chamber (201), and the condensation pipe (204) is connected to the bottom end of the return pipe (203). The rotating shafts (205) are distributed on both sides of the furnace chamber (201), and the furnace cover plate (206) is connected to one side of the rotating shaft (205). The pull rod (207) is connected to the outer wall of the furnace cover plate (206).

2. The waste heat boiler convenient for cleaning according to claim 1, wherein: The furnace cover plate (206) forms a rotating structure with the furnace chamber (201) through the rotating shaft (205), and the furnace cover plate (206) is clamped with both sides of the furnace chamber (201).

3. The waste heat boiler facilitating cleaning according to claim 1, wherein: The return pipes (203) are equidistantly distributed along the middle of the furnace chamber (201), and the return pipes (203) are threadedly connected to the top end of the furnace chamber (201).

4. The waste heat boiler convenient for cleaning according to claim 1, wherein: The furnace body (1) includes a main frame (101), a smoke inlet (102), an exhaust pipe (103), and a support (104). The smoke inlet (102) is provided at one end of the main frame (101). The exhaust pipe (103) is connected to the other end of the main frame (101), and the supports (104) are distributed at the bottom end of the main frame (101).

5. The waste heat boiler convenient for cleaning according to claim 4, wherein: A fixed connection is formed between the main frame (101) and the support (104), and the smoke inlet (102) and the exhaust pipe (103) are communicated with the main frame (101).

6. The waste heat boiler convenient for cleaning according to claim 1, wherein: The laminated chimney (3) includes a chimney pipe (301), a chimney opening (302), a laminated pipe (303), a rubber ring (304), and a snap ring (305). The chimney opening (302) is provided on one side of the chimney pipe (301). The laminated pipe (303) is provided at the top end of the chimney pipe (301), and the rubber ring (304) is provided at the bottom end of the laminated pipe (303). The snap ring (305) is provided at the top end of the laminated pipe (303).

7. The waste heat boiler facilitating cleaning according to claim 6, wherein: The laminated pipe (303) is clamped with the chimney pipe (301) through the snap ring (305), and the laminated pipes (303) are equidistantly distributed along the middle of the chimney pipe (301).

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