Boiler waste heat utilization device

Abstract

The utility model relates to the technical field of waste heat utilization devices, in particular to a boiler waste heat utilization device which comprises a device body used for conducting waste heat recovery on a boiler, a first connecting pipe and a second connecting pipe, the lower portion of the device body is communicated with the first connecting pipe, and the lower portion of the first connecting pipe is rotatably connected with the second connecting pipe. A filtering assembly is arranged in the second connecting pipe, the filtering assembly comprises a first fixing frame, a filter screen, an activated carbon layer, a second fixing frame and a handle, the first fixing frame is tightly attached to the interior of the second connecting pipe, and the second fixing frame with the concave inner wall is rotationally connected to one side of the first fixing frame. A filter screen for filtering impurities in smoke dust is tightly attached to the interior of the first fixing frame and the interior of the second fixing frame, an activated carbon layer is arranged above the filter screen, the impurities can be filtered when waste heat is recycled through the arranged filter assembly, and the filter assembly is convenient to maintain and replace through the arranged detachable assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat utilization devices, in particular to a boiler waste heat utilization device. Background Art

[0002] A boiler is an energy conversion device. The energy input to the boiler includes chemical energy and electrical energy in the fuel. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. A waste heat utilization device refers to a device that recovers and utilizes waste heat generated in the industrial production process. Waste heat recovery and utilization is an important way to improve economy and save fuel.

[0003] When the waste heat recovery and utilization device is in use, a pipe is usually connected to the outlet of the boiler exhaust gas. Since the boiler exhaust gas contains a large amount of smoke and dust, the smoke and dust reach the waste heat recovery and utilization device through the pipe, causing a large amount of smoke and dust to adhere to the pipe and the inner wall of the waste heat recovery and utilization device, which is inconvenient to clean. Therefore, a boiler waste heat utilization device is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide a boiler waste heat utilization device to solve the problem that a large amount of smoke and dust is transferred to the recovery and utilization device and the pipeline is inconvenient to clean during waste heat recovery.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A boiler waste heat utilization device includes a device body for recovering waste heat from a boiler, a first connecting pipe, and a second connecting pipe. The first connecting pipe is connected to the bottom of the device body, and the second connecting pipe is rotatably connected to the bottom of the first connecting pipe. A filter assembly is provided in the second connecting pipe, and the filter assembly includes a first fixed frame, a filter screen, an activated carbon layer, a second fixed frame and a handle. The first fixed frame is tightly fitted in the second connecting pipe, and a second fixed frame with a concave inner wall is rotatably connected to one side of the first fixed frame. The first fixed frame and the second fixed frame are tightly fitted with a filter screen for filtering impurities in smoke and dust, and an activated carbon layer is provided above the filter screen.

[0007] Preferably, a threaded sleeve for connecting to other pipes is fixedly connected to the outside of the second connecting pipe, the first connecting pipe and the second connecting pipe are connected by bolts, and a rubber layer for increasing sealing is fixedly connected to the bottom of the first connecting pipe.

[0008] Preferably, handles are fixedly connected to the tops of the first fixing frame and the second fixing frame, and positioning strips for facilitating installation are fixedly connected to the outer sides of the first fixing frame and the second fixing frame.

[0009] Preferably, a disassembly assembly is provided in the second connecting tube, and the disassembly assembly includes a support plate, a magnetic block, a groove, a reed and a positioning block.

[0010] Preferably, a groove is provided in the second connecting tube, a spring is provided in the groove, a raised side of the spring is tightly fitted with the recessed portion on the outside of the first fixed frame and the second fixed frame, a ring-shaped support plate is fixedly connected to the second connecting tube, a magnetic block is provided in the support plate, magnetic blocks are provided at the fitting portion and bottom of the first fixed frame and the second fixed frame, a positioning block is fixedly connected to one side of the filter screen and the activated carbon layer, and the positioning block is tightly fitted with the recessed portion on the inner wall of the second fixed frame.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] In the utility model, through the device main body, first connecting pipe, second connecting pipe, filter assembly, first fixing frame, filter screen, activated carbon layer and second fixing frame and threaded sleeve, the user connects the second connecting pipe to the air outlet of the boiler through the threaded sleeve, and heat flows from the air outlet of the boiler to the second connecting pipe, and is filtered and adsorbed by the filter screen and activated carbon layer. The filtered heat flows through the second connecting pipe to the first connecting pipe and finally reaches the device main body, achieving the purpose of filtering impurities during heat transfer and avoiding cleaning of the interior of the device main body. Through the provided handle, positioning bar, disassembly assembly, support plate, magnetic block, groove, reed and positioning block, the user removes the bolts and rotates the second connecting pipe, and then holds the handle to take out the first fixing frame and the second fixing frame. The reed, support plate and magnetic block cooperate to effectively fix the first fixing frame and the second fixing frame. After removal, the first fixing frame is rotated to take out the filter screen and the activated carbon layer, which can be replaced. The provided rubber layer increases the sealing effect of the joint between the first connecting pipe and the second connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the rotation structure of the second connecting pipe of the utility model;

[0015] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at A;

[0016] Figure 4 This is a schematic diagram of the support plate structure of the utility model;

[0017] Figure 5 For this utility model Figure 4 Schematic diagram of the structure at B;

[0018] Figure 6 This is a schematic diagram of the assembly structure of the filter component of the utility model.

[0019] In the figure: 1. Device body; 2. First connecting pipe; 3. Second connecting pipe; 4. Filter assembly; 41. First fixing frame; 42. Filter screen; 43. Activated carbon layer; 44. Second fixing frame; 45. Handle; 5. Threaded sleeve; 6. Positioning bar; 7. Disassembly assembly; 71. Support plate; 72. Magnetic block; 73. Groove; 74. Reed; 75. Positioning block; 8. Rubber layer. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0023] See also Figure 1-6 , the utility model provides a technical solution:

[0024] A boiler waste heat utilization device includes a device body 1 for recovering waste heat from a boiler, a first connecting pipe 2, and a second connecting pipe 3. The first connecting pipe 2 is connected to the bottom of the device body 1, and the second connecting pipe 3 is rotatably connected to the bottom of the first connecting pipe 2. A filter assembly 4 is provided in the second connecting pipe 3. The filter assembly 4 includes a first fixed frame 41, a filter screen 42, an activated carbon layer 43, a second fixed frame 44 and a handle 45. The first fixed frame 41 is tightly fitted in the second connecting pipe 3, and a second fixed frame 44 with a concave inner wall is rotatably connected to one side of the first fixed frame 41. A filter screen 42 for filtering impurities in smoke and dust is tightly fitted in the first fixed frame 41 and the second fixed frame 44, and an activated carbon layer 43 is provided above the filter screen 42. The filter assembly 4 is provided to filter impurities when waste heat is recovered, and the disassembly assembly 7 is provided to facilitate maintenance and replacement of the filter assembly 4.

[0025] The outer side of the second connecting pipe 3 is fixedly connected to a threaded sleeve 5 for connecting to other pipes. The first connecting pipe 2 and the second connecting pipe 3 are connected by bolts. The bottom of the first connecting pipe 2 is fixedly connected to a rubber layer 8 for increasing sealing, which is convenient for the use of the device body 1 and the disassembly and assembly of the filter assembly 4; the tops of the first fixing frame 41 and the second fixing frame 44 are fixedly connected to handles 45, and the outer sides of the first fixing frame 41 and the second fixing frame 44 are fixedly connected to positioning strips 6 for easy installation, which are convenient for positioning when removing and installing the first fixing frame 41 and the second fixing frame 44; a disassembly assembly 7 is provided in the second connecting pipe 3, and the disassembly assembly 7 includes a support plate 71, a magnetic block 72, and a groove 73. , reed 74 and positioning block 75, which are convenient for disassembly of filter assembly 4; a groove 73 is opened in the second connecting tube 3, and a reed 74 is arranged in the groove 73, and the raised side of the reed 74 is tightly fitted with the recessed parts on the outer sides of the first fixed frame 41 and the second fixed frame 44; a ring-shaped support plate 71 is fixedly connected to the second connecting tube 3, and a magnetic block 72 is provided in the support plate 71; the fitting part and the bottom of the first fixed frame 41 and the second fixed frame 44 are both provided with magnetic blocks 72; a positioning block 75 is fixedly connected to one side of the filter screen 42 and the activated carbon layer 43; the positioning block 75 and the recessed part of the inner wall of the second fixed frame 44 are tightly fitted, which is convenient for replacement and maintenance of the filter screen 42 and the activated carbon layer 43.

[0026] Working process: When the boiler waste heat utilization device is in use, first place the device body 1 in a suitable position, then connect the threaded sleeve 5 on one side of the second connecting pipe 3 to the exhaust port or exhaust pipe of the boiler, so that the device body 1 is connected to the boiler, and the heat flows to the second connecting pipe 3 through the exhaust port or exhaust pipe, and the smoke in the heat is filtered by the filter 42 in the second connecting pipe 3, and the impurities in the heat are adsorbed by the activated carbon layer 43. The filtered heat flows to the first connecting pipe 2 through the second connecting pipe 3, and finally flows into the device body 1. When the filter group When the component 4 needs to be replaced or maintained after long-term use, the user separates the device body 1 from the boiler, then removes the bolts at the first connecting pipe 2 and the second connecting pipe 3, and rotates the second connecting pipe 3 as a whole to the upper right. At this time, the user holds the handle 45 to take out the first fixing frame 41 and the second fixing frame 44 as a whole. During the removal process, the positioning bar 6 moves in the recessed position on the inner wall of the second connecting pipe 3, and the magnetic block 72 in the support plate 71 moves away from the magnetic block 72 at the bottom of the first fixing frame 41 and the second fixing frame 44. The magnetic attraction gradually disappears, and the reed 74 is in a deformed state. After the fixing frame 41 and the second fixing frame 44 are completely taken out, the user holds the handle 45 of the first fixing frame 41 and rotates it to one side. The magnetic block 72 in the first fixing frame 41 and the magnetic block 72 in the second fixing frame 44 gradually move away from each other until the magnetic attraction is lost. Then the filter screen 42 and the activated carbon layer 43 are taken out, and the positioning block 75 is taken out at the same time to replace or maintain them. Then the new or maintained filter screen 42 and activated carbon layer 43 are put back in place, that is, the positioning block 75 is inserted into the recessed part of the inner wall of the second fixing frame 44, and the first fixing frame 41 is closed. The magnetic block 72 is used to align the first fixing frame 41 with the first fixing frame 44. The fixed frame 41 and the second fixed frame 44 are fixed, and then the first fixed frame 41 and the second fixed frame 44 are inserted as a whole into the second connecting tube 3 through the positioning bar 6, and the spring 74 is used to press against the recesses of the first fixed frame 41 and the second fixed frame 44. The magnetic block 72 in the support plate 71 and the magnetic block 72 at the bottom of the first fixed frame 41 and the second fixed frame 44 generate a magnetic attraction force to fix the installed filter assembly 4. Through the set filter assembly 4, the waste heat can filter impurities when it is recovered. The set disassembly assembly 7 facilitates the maintenance and replacement of the filter assembly 4.

[0027] Any matters not described in detail in this specification are prior art known to those skilled in the art. Standard parts used in this utility model are commercially available, and special-shaped parts can be customized according to the description in the specification and the accompanying drawings. The specific connection methods of each part are all conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment are all conventional models in the prior art, and the circuit connections use conventional connection methods in the prior art, which will not be described in detail here.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A boiler waste heat utilization device, comprising a device body (1) for recovering waste heat from a boiler, a first connecting pipe (2) and a second connecting pipe (3), characterized in that: A first connecting pipe (2) is connected to the bottom of the device body (1), and a second connecting pipe (3) is rotatably connected to the bottom of the first connecting pipe (2). A filter assembly (4) is provided in the second connecting pipe (3), and the filter assembly (4) comprises a first fixed frame (41), a filter screen (42), an activated carbon layer (43), a second fixed frame (44) and a handle (45). The first fixed frame (41) is tightly fitted in the second connecting pipe (3), and a second fixed frame (44) with a concave inner wall is rotatably connected to one side of the first fixed frame (41). A filter screen (42) for filtering impurities in smoke and dust is tightly fitted in the first fixed frame (41) and the second fixed frame (44), and an activated carbon layer (43) is provided above the filter screen (42).

2. The boiler waste heat utilization device according to claim 1, characterized in that: A threaded sleeve (5) for connecting to other pipes is fixedly connected to the outside of the second connecting pipe (3), the first connecting pipe (2) and the second connecting pipe (3) are connected via bolts, and a rubber layer (8) for enhancing sealing is fixedly connected to the bottom of the first connecting pipe (2).

3. The boiler waste heat utilization device according to claim 1, characterized in that: The tops of the first fixing frame (41) and the second fixing frame (44) are both fixedly connected with handles (45), and the outer sides of the first fixing frame (41) and the second fixing frame (44) are both fixedly connected with positioning strips (6) for easy installation.

4. The boiler waste heat utilization device according to claim 1, characterized in that: A disassembly assembly (7) is provided in the second connecting tube (3), and the disassembly assembly (7) comprises a support plate (71), a magnetic block (72), a groove (73), a reed (74) and a positioning block (75).

5. The boiler waste heat utilization device according to claim 1, characterized in that: A groove (73) is provided in the second connecting tube (3), a spring (74) is provided in the groove (73), and a raised side of the spring (74) is tightly fitted with the recessed portion on the outside of the first fixing frame (41) and the second fixing frame (44). A ring-shaped support plate (71) is fixedly connected to the second connecting tube (3), and a magnetic block (72) is provided in the support plate (71). The first fixing frame (41) and the second fixing frame (44) are both provided with a magnetic block (72) at the joint and bottom. A positioning block (75) is fixedly connected to one side of the filter screen (42) and the activated carbon layer (43), and the positioning block (75) is tightly fitted with the recessed portion of the inner wall of the second fixing frame (44).

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