Boiler heat recovery device
By designing a boiler heat recovery device, the heat of the high-temperature flue gas from the boiler is recovered using a water tank and purification tank system, and impurities are filtered out through a filter screen and heating tube mechanism. This solves the problems of heat waste and environmental pollution during boiler combustion, and achieves effective heat utilization and environmental protection.
Patent Information
- Application Number
- CN202520451275.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-14
AI Technical Summary
High-temperature flue gas generated by boilers during long-term combustion is usually emitted directly, resulting in heat waste and environmental pollution. Existing technologies cannot effectively recover and filter the heat in this flue gas.
A boiler heat recovery device was designed, including a water tank, a purification tank, a heating pipe, and an installation and disassembly mechanism. Through a high-temperature flue gas pipe, a fixed pipe, and a filter screen system, heat recovery and particulate impurity filtration of high-temperature flue gas are achieved. Heat transfer and flue gas purification are carried out using a water pump and an exhaust fan.
It enables the recovery and utilization of boiler heat, reduces environmental pollution, and ensures the cleaning and maintenance of the filter screen through a convenient disassembly structure.
Smart Images

Figure CN223896645U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a boiler technical field, especially a boiler heat recovery device. BACKGROUND
[0002] A boiler is an energy conversion device that uses the heat energy released by burning fuel or other heat sources to heat water or other working fluids to produce steam, hot water, or other working fluids with specified parameters and qualities. Boilers generate heat by burning fuel, and this heat is used to heat the working fluid, producing steam or hot water. The output of a boiler can be steam, hot water, or organic heat carrier with certain heat energy. These products can be directly used in industrial production and daily life, or they can be converted into mechanical energy through steam power devices, and then into electrical energy through generators.
[0003] When a boiler is used for a long time, it produces high-temperature flue gas. Usually, the high-temperature flue gas is directly discharged, resulting in a large amount of waste heat generated during the combustion of the boiler. At the same time, the high-temperature flue gas cannot be filtered, causing environmental pollution due to the direct discharge of high-temperature flue gas. Therefore, a boiler heat recovery device is needed to meet people's use requirements. SUMMARY
[0004] The purpose of this section is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification, and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.
[0005] In view of the above or existing technology, when a boiler is used for a long time, it produces high-temperature flue gas. Usually, the high-temperature flue gas is directly discharged, resulting in a large amount of waste heat generated during the combustion of the boiler. At the same time, the high-temperature flue gas cannot be filtered, causing environmental pollution due to the direct discharge of high-temperature flue gas. Therefore, a boiler heat recovery device is needed to meet people's use requirements. Therefore, the utility model is proposed.
[0006] Therefore, the purpose of the utility model is to provide a boiler heat recovery device.
[0007] To solve the above technical problems, the utility model provides technical schemes as follows: A boiler heat recovery device, including device box, it includes water warehouse and purification bin, water warehouse and purification bin are established respectively in the inside of device box, and purification bin is located above water warehouse, the side wall of one end of water warehouse is installed high temperature flue gas pipe, the side wall of one end of device box is installed first water pump main body, and the input of first water pump main body is installed and passes through the water inlet pipe of water warehouse, the output of first water pump main body is installed and is connected water pipe, the top of device box is installed and is discharged pipe, and the discharge pipe is linked with purification bin, the side wall of one side of device box is installed mounting bracket, and the bottom of mounting bracket is installed and is connected water pipe that passes through the water outlet shower head of water warehouse inside, the both ends of device box bottom are installed base,
[0008] Heating pipe mechanism, it includes first fixed pipe, the first fixed pipe is fixedly installed on the side wall of both ends inside water warehouse, one end of first fixed pipe is installed and is connected pipe, and the outer wall of connected pipe is installed second fixed pipe;
[0009] Mounting and dismounting mechanism, it includes U type frame, the U type frame is fixedly installed on the side wall of both ends inside purification bin, the inside of U type frame is provided with mounting plate, and the inside of mounting plate is installed filter screen, the top of U type frame is all set up through -hole, and the inside of through -hole is provided with sliding rod, the bottom of sliding rod is fixedly installed extrusion plate.
[0010] As a preferred scheme of the utility model boiler heat recovery device, wherein: the side wall of one side of device box is hinged with door plate main body, and the side wall of one side of door plate main body is installed handle.
[0011] As a preferred scheme of the utility model boiler heat recovery device, wherein: the top of second fixed pipe is all installed and passes through the vertical pipe of purification bin inside, and the top of vertical pipe is installed and is connected with the smoke stack, the outer wall of first fixed pipe and second fixed pipe is all set with heat -preserving pad.
[0012] As a preferred scheme of the utility model boiler heat recovery device, wherein: the top of sliding rod is installed disc main body, and the top of disc main body is fixedly installed handle main body, the outer wall of handle main body is installed antiskid cover.
[0013] As a preferred scheme of the utility model boiler heat recovery device, wherein: the outer wall of sliding rod is set with high pressure spring main body, and the top and bottom of high pressure spring main body are fixedly connected with the side wall of disc main body and U type frame respectively.
[0014] As a preferred scheme of the utility model a kind of boiler heat recovery device, wherein;The shape of the extruded plate is isosceles trapezoid, the bottom end of the extruded plate is equipped with anti-skid tooth.
[0015] As a preferred scheme of the utility model a kind of boiler heat recovery device, wherein;The inside of the discharge pipe is equipped with exhaust fan.
[0016] The utility model a kind of boiler heat recovery device has the following beneficial effects:
[0017] 1, the utility model is first through the design of first fixed pipe, communicating pipe and second fixed pipe, and by first fixed pipe, communicating pipe and second fixed pipe are installed in the inside of water sump horizontally, and by high-temperature flue gas pipe and first fixed pipe are communicated, make high-temperature flue gas pass through high-temperature flue gas pipe and enter the inside of first fixed pipe, and pass through communicating pipe and second fixed pipe from vertical pipe and smoke stack and discharge, to make the heat generated when high-temperature flue gas passes through communicating pipe and second fixed pipe to heat the water in the inside of water sump, to recover the heat of boiler;
[0018] 2, the utility model is first through the design of mounting plate and filter screen, so that high-temperature flue gas can be filtered by mounting plate and filter screen, to filter the particulate impurities of high-temperature flue gas, to avoid polluting the environment when discharging, simultaneously by the design of sliding rod, high-pressure spring main body and extruded plate, so that extruded plate is conveniently disassembled and cleaned by high-pressure spring main body to mounting plate and filter screen by operating personnel. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced to the drawing needed to be used in embodiment description, obviously, the drawing in the following description is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, other drawings can also be obtained according to these drawings. Wherein:
[0020] Fig. 1 It is the main view structural schematic diagram of a kind of boiler heat recovery device;
[0021] Fig. 2 It is the main view internal structure schematic diagram of a kind of boiler heat recovery device;
[0022] Fig. 3 It is the first fixed pipe structural schematic diagram of a kind of boiler heat recovery device;
[0023] Fig. 4 It is the U-shaped frame structural schematic diagram of a kind of boiler heat recovery device;
[0024] Fig. 5A schematic diagram of an extrusion plate structure for a boiler heat recovery device;
[0025] Fig. 6 This is a schematic diagram of the internal structure of the discharge pipe of a boiler heat recovery device.
[0026] The attached diagram lists the components represented by each number as follows:
[0027] 1. Device housing; 101. Water tank; 102. Purification chamber; 103. High-temperature flue gas pipe; 104. First water pump body; 105. External water pipe; 106. Inlet pipe; 107. Discharge pipe; 1071. Exhaust fan; 108. Mounting bracket; 109. Water nozzle; 1010. Second water pump body; 1011. Connecting water pipe; 1012. Door panel body; 1013. Base;
[0028] 2. Heating tube mechanism; 201. First fixed tube; 202. Connecting tube; 203. Second fixed tube; 204. Insulation pad; 205. Vertical tube; 206. Exhaust pipe;
[0029] 3. Installation and disassembly mechanism; 301. U-shaped frame; 302. Mounting plate; 303. Filter screen; 304. Through hole; 305. Sliding rod; 306. Disc body; 307. Handle body; 308. High-pressure spring body; 309. Extrusion plate. Detailed Implementation
[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0032] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0033] Example 1: Refer to Figs. 1-6This is the first embodiment of the present invention, which provides a boiler heat recovery device. When a boiler is used for extended periods, it produces high-temperature flue gas. Typically, this high-temperature flue gas is directly discharged, resulting in a significant waste of the heat generated during combustion. Furthermore, the high-temperature flue gas cannot be filtered, leading to direct emission and environmental pollution. Therefore, a boiler heat recovery device is needed to meet the needs of users. The device includes a housing 1, which comprises a water tank 101 and a purification chamber 102. The water tank 101 and purification chamber 102 are respectively located inside the housing 1, with the purification chamber 102 positioned above the water tank 101. A high-temperature flue gas pipe 103 is installed on the side wall of one end of the water tank 101. A high-temperature flue gas pipe 103 is installed on one end of the housing 1. A first water pump body 104 is installed on the side wall, and an inlet pipe 106 penetrating the water tank 101 is installed at the input end of the first water pump body 104. An external water pipe 105 is installed at the output end of the first water pump body 104. A discharge pipe 107 is installed at the top of the device box 1, and the discharge pipe 107 is connected to the purification chamber 102. An exhaust fan 1071 is installed inside the discharge pipe 107. A mounting bracket 108 is installed on one side wall of the device box 1, and a water nozzle 109 is installed at the bottom of each mounting bracket 108. A second water pump body 1010 is installed on the side wall of the mounting bracket 108, and a connecting water pipe 1011 penetrating the water tank 101 is installed at the output end of the second water pump body 1010. A base 1013 is installed at both ends of the bottom of the device box 1.
[0034] A door panel body 1012 is hinged to one side wall of the device housing 1, and a handle is installed on one side wall of the door panel body 1012.
[0035] Heating tube mechanism 2 includes a first fixed tube 201, which is fixedly installed on the side walls at both ends inside the water tank 101. A connecting tube 202 is installed at one end of the first fixed tube 201, and a second fixed tube 203 is installed on the outer wall of the connecting tube 202.
[0036] The top of the second fixed pipe 203 is equipped with a vertical pipe 205 that penetrates the interior of the purification chamber 102, and the top of the vertical pipe 205 is equipped with a smoke outlet 206. The outer walls of the first fixed pipe 201 and the second fixed pipe 203 are both covered with heat insulation pads 204.
[0037] The specific working principle is as follows: First, through the design of the first fixed pipe 201, the connecting pipe 202, and the second fixed pipe 203, the first fixed pipe 201, the connecting pipe 202, and the second fixed pipe 203 are installed horizontally inside the water tank 101. They are connected to the first fixed pipe 201 through the high-temperature flue gas pipe 103, so that the high-temperature flue gas enters the interior of the first fixed pipe 201 through the high-temperature flue gas pipe 103, and is discharged from the vertical pipe 205 and the flue hopper 206 through the connecting pipe 202 and the second fixed pipe 203. In this way, the heat generated by the high-temperature flue gas when passing through the connecting pipe 202 and the second fixed pipe 203 heats the water inside the water tank 101, thereby recovering heat from the boiler.
[0038] Example 2: Refer to Figs. 1-6 This is the first embodiment of the present utility model. This embodiment provides a boiler heat recovery device, which can realize that when a boiler is used for a long time, it will produce high-temperature flue gas. Usually, the high-temperature flue gas is directly discharged, which causes a lot of heat generated by the boiler during combustion. At the same time, the high-temperature flue gas cannot be filtered, resulting in direct discharge of high-temperature flue gas and causing environmental pollution. Therefore, a boiler heat recovery device is needed to meet people's needs. The installation and disassembly mechanism 3 includes a U-shaped frame 301. The U-shaped frame 301 is fixedly installed on the side walls at both ends inside the purification chamber 102. The U-shaped frame 301 is provided with an installation plate 302 inside, and a filter screen 303 is installed inside the installation plate 302. The top of the U-shaped frame 301 is provided with a through hole 304, and a sliding rod 305 is provided inside the through hole 304. A pressing plate 309 is fixedly installed at the bottom end of the sliding rod 305.
[0039] A disc body 306 is mounted on the top of the sliding rod 305, and a handle body 307 is fixedly mounted on the top of the disc body 306. An anti-slip sleeve is mounted on the outer wall of the handle body 307. A high-pressure spring body 308 is sleeved on the outer wall of the sliding rod 305, and the top and bottom ends of the high-pressure spring body 308 are fixedly connected to the side walls of the disc body 306 and the U-shaped frame 301, respectively. The extrusion plate 309 is in the shape of an isosceles trapezoid, and anti-slip teeth are mounted on the bottom end of the extrusion plate 309. The anti-slip teeth on the bottom end of the extrusion plate 309 improve the positioning and fixing effect of the extrusion plate 309 on the mounting plate 302 and the filter screen 303.
[0040] The specific working principle is as follows: First, by starting the exhaust fan 1071, and through the design of the mounting plate 302 and the filter screen 303, the high-temperature flue gas can be filtered through the mounting plate 302 and the filter screen 303 to remove particulate impurities, thereby preventing environmental pollution during discharge. When it is necessary to disassemble and clean the mounting plate 302 and the filter screen 303, first, by pulling the handle body 307 upward, through the design of the sliding rod 305, the high-pressure spring body 308, and the compression plate 309, the sliding rod 305 moves up and down inside the through hole 304, compressing the high-pressure spring body 308 to deform. This causes the sliding rod 305 to move up and down, driving the compression plate 309 to no longer fix the mounting plate 302, thus allowing the compression plate 309 to elastically return to its original position through the high-pressure spring body 308, making it easy for the operator to disassemble and clean the mounting plate 302 and the filter screen 303.
[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A boiler heat recovery device, characterized in that: include, The device housing (1) includes a water tank (101) and a purification tank (102), which are respectively located inside the device housing (1), with the purification tank (102) located above the water tank (101). A high-temperature flue gas pipe (103) is installed on the side wall of one end of the water tank (101), and a first water pump body (104) is installed on the side wall of one end of the device housing (1). An inlet pipe (106) penetrating the water tank (101) is installed at the input end of the first water pump body (104), and an external water pipe is installed at the output end of the first water pump body (104). (105) A discharge pipe (107) is installed at the top of the device housing (1) and the discharge pipe (107) is connected to the purification chamber (102). A mounting bracket (108) is installed on one side wall of the device housing (1) and a water nozzle (109) is installed at the bottom of the mounting bracket (108). A second water pump body (1010) is installed on the side wall of the mounting bracket (108) and a connecting water pipe (1011) is installed at the output end of the second water pump body (1010) that penetrates the interior of the water chamber (101). A base (1013) is installed at both ends of the bottom of the device housing (1). Heating tube mechanism (2) includes a first fixed tube (201), which is fixedly installed on the side walls at both ends inside the water tank (101). A connecting tube (202) is installed at one end of the first fixed tube (201), and a second fixed tube (203) is installed on the outer wall of the connecting tube (202). The installation and disassembly mechanism (3) includes a U-shaped frame (301), which is fixedly installed on the side walls at both ends inside the purification chamber (102). The U-shaped frame (301) is provided with an installation plate (302), and a filter screen (303) is installed inside the installation plate (302). The top of the U-shaped frame (301) is provided with a through hole (304), and a sliding rod (305) is provided inside the through hole (304). A pressing plate (309) is fixedly installed at the bottom end of the sliding rod (305).
2. The boiler heat recovery device as described in claim 1, characterized in that: A door panel body (1012) is hinged to one side wall of the device housing (1), and a handle is installed on one side wall of the door panel body (1012).
3. The boiler heat recovery device as described in claim 1, characterized in that: The top of the second fixed tube (203) is equipped with a vertical tube (205) that penetrates the interior of the purification chamber (102), and the top of the vertical tube (205) is equipped with a smoke outlet (206). The outer walls of the first fixed tube (201) and the second fixed tube (203) are covered with heat insulation pads (204).
4. The boiler heat recovery device as described in claim 1, characterized in that: The top of the sliding rod (305) is fitted with a disc body (306), and the top of the disc body (306) is fixedly fitted with a handle body (307). The outer wall of the handle body (307) is fitted with an anti-slip sleeve.
5. A boiler heat recovery device as described in claim 1, characterized in that: The outer wall of the sliding rod (305) is fitted with a high-pressure spring body (308), and the top and bottom ends of the high-pressure spring body (308) are fixedly connected to the side walls of the disc body (306) and the U-shaped frame (301), respectively.
6. The boiler heat recovery device as described in claim 1, characterized in that: The extrusion plate (309) is in the shape of an isosceles trapezoid, and anti-slip teeth are installed at the bottom end of the extrusion plate (309).
7. A boiler heat recovery device as described in claim 1, characterized in that: An exhaust fan (1071) is installed inside the discharge pipe (107).