Continuous boiler blowdown device with waste heat utilization structure
By introducing waste heat recovery and filtration structures into the boiler continuous blowdown device, the problem of heat energy waste has been solved, achieving energy-saving heating and extending the device's lifespan, thus improving the device's practicality and efficiency.
Patent Information
- Application Number
- CN202520358803.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-04
AI Technical Summary
The existing continuous blowdown system for boilers lacks a waste heat utilization structure, resulting in heat waste and increased energy consumption, which reduces the practicality and efficiency of the system.
A boiler continuous blowdown device with waste heat utilization structure was designed, including a blowdown pipe, a waste heat recovery tank, a filter box and a filter layer. The waste heat recovery tank recovers the waste heat of the boiler water and heats the water source for heating. At the same time, activated carbon and nanofiber filter layers are used to filter the boiler water to prevent scale formation.
This has improved the energy efficiency of the continuous boiler blowdown device, extended its service life, reduced cleaning and maintenance work, and enhanced its overall practicality and efficiency.
Smart Images

Figure CN223924774U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a boiler continuous blowdown technical field, concretely is a boiler continuous blowdown device with waste heat utilization structure. BACKGROUND
[0002] Boiler continuous blowdown refers to continuously discharging the highest concentration of boiler water from the surface layer of the boiler drum, which aims to reduce the salt content and alkalinity in the boiler water, prevent the high concentration of the boiler water from affecting the steam quality, and ensure that the discharged water is the highest in salt content and alkalinity. Continuous blowdown can maintain good water quality in the boiler and ensure the quality and production efficiency of the steam. However, the existing boiler continuous blowdown device still has the following shortcomings:
[0003] When the existing boiler continuous blowdown device is used, most of the boiler continuous blowdown devices do not have a corresponding waste heat utilization structure, which causes the heat energy of the boiler water to be discharged at the same time as the waste water is discharged, resulting in waste and loss of heat energy, increasing energy consumption, and reducing the practicality and use efficiency of the boiler continuous blowdown device.
[0004] Therefore, in view of the above, the existing structure and defects are improved, and a boiler continuous blowdown device with waste heat utilization structure is proposed. INVENTION CONTENTS
[0005] The utility model aims to provide a boiler continuous blowdown device with waste heat utilization structure to solve the problems raised in the background.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a boiler continuous blowdown device with waste heat utilization structure, comprising a blowdown pipe main body and a waste heat recovery tank, an adjusting valve is arranged at the upper end of the blowdown pipe main body, a waste heat recovery tank is arranged outside the blowdown pipe main body, a support column is installed at the lower end of the waste heat recovery tank, an inlet pipe is arranged at the middle of the upper end of the waste heat recovery tank, an outlet pipe is arranged at the middle of the outside of the waste heat recovery tank, a liquid collecting cavity is arranged at both ends of the inside of the waste heat recovery tank, a shunt pipe is arranged outside the liquid collecting cavity, and heat dissipation fins are additionally arranged outside the shunt pipe, a filter box is arranged at the front end of the blowdown pipe main body, an activated carbon filter layer is arranged at the left side of the inside of the filter box, and a nano filter core layer is arranged at the right side of the inside of the filter box.
[0007] Further, the adjusting valve and the blowdown pipe main body are vertically distributed, and the adjusting valve and the blowdown pipe main body are fixedly connected through bolts.
[0008] Further, the number of support column rods is four, and two support column rods are a group, and each group of support column rods is symmetrically arranged at both sides of the lower end of the waste heat recovery tank with the front central axis of the waste heat recovery tank.
[0009] Further, the liquid inlet pipe is embeddedly connected with the waste heat recovery tank, and the liquid inlet pipe is fixedly connected with the waste heat recovery tank through bolts.
[0010] Further, the shunt pipe is vertically distributed with the liquid collecting cavity, and the shunt pipe is arranged between the two liquid collecting cavities.
[0011] Further, the heat dissipation fins are vertically distributed with the shunt pipe, and the heat dissipation fins are equidistantly distributed outside the shunt pipe.
[0012] Further, the outer size of the activated carbon filter layer is matched with the inner size of the filter box, and the activated carbon filter layer is fixedly connected with the filter box through bolts.
[0013] Further, the outer side of the activated carbon filter layer is horizontally distributed with the outer side of the nano filter core layer, and the outer side of the activated carbon filter layer is closely attached to the outer side of the nano filter core layer.
[0014] The utility model provides a kind of boiler continuous blowdown device with waste heat utilization structure, with the following beneficial effects:
[0015] 1, the utility model is provided with waste heat recovery tank, can be shunted in waste heat recovery tank inside by liquid collecting cavity when having waste heat utilization structure's boiler continuous blowdown device uses, and the shunted boiler water flows into shunt pipe inside, to increase the flow of boiler water containing waste heat in waste heat recovery tank, cooperate heat dissipation fin to make the waste heat of boiler water in shunt pipe inside be discharged quickly, water source is transported to waste heat recovery tank inside by liquid inlet pipe, and the water in waste heat recovery tank is heated by the heat dissipated in shunt pipe, so that the heated water is discharged by liquid outlet pipe, and the heat-exchanged water flows into heating pipeline to heat the workshop heating and heating user, improve the energy saving of boiler continuous blowdown device in use process.
[0016] 2, the utility model is provided with filter box, can be fixedly installed in the front end outside the main body of blowdown pipe by fastening bolt when having waste heat utilization structure's boiler continuous blowdown device uses, and activated carbon filter layer and nano filter core layer are fixedly installed in filter box, and the boiler water flowing in the main body of blowdown pipe is filtered by activated carbon filter layer and nano filter core layer, to prevent the formation of scale and dirt, prolong the service life of boiler continuous blowdown device, reduce the cleaning of boiler continuous blowdown device by staff, improve the overall practicality and use efficiency of boiler continuous blowdown device. ACCREDITED DRAWINGS
[0017] Figure 1 It is a three-dimensional structure schematic view of the continuous blowdown device of the boiler with the waste heat utilization structure of the utility model;
[0018] Figure 2 It is a three-dimensional sectional structure schematic view of the waste heat recovery tank of the continuous blowdown device of the boiler with the waste heat utilization structure of the utility model;
[0019] Figure 3 It is a three-dimensional sectional structure schematic view of the filter box of the continuous blowdown device of the boiler with the waste heat utilization structure of the utility model.
[0020] In the figure: 1, blowdown pipe main body; 2, regulating valve; 3, waste heat recovery tank; 4, support column; 5, liquid inlet pipe; 6, liquid outlet pipe; 7, liquid collection cavity; 8, shunt pipe; 9, heat dissipation fin; 10, filter box; 11, activated carbon filter layer; 12, nano filter core layer. DETAILED DESCRIPTION
[0021] The embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.
[0022] As Figure 1 and Figure 2The boiler continuous blowdown device with waste heat utilization structure shown, including blowdown pipe body 1 and waste heat recovery tank 3, the blowdown pipe body 1 upper end is provided with regulating valve 2, and the blowdown pipe body 1 outside is provided with waste heat recovery tank 3, and the waste heat recovery tank 3 lower end is installed with support column 4, the waste heat recovery tank 3 upper end middle part is provided with liquid inlet pipe 5, the waste heat recovery tank 3 outside middle end is provided with liquid outlet pipe 6, and the waste heat recovery tank 3 inside both ends are provided with liquid collecting cavity 7, and the liquid collecting cavity 7 outside is provided with shunt pipe 8, and the shunt pipe 8 outside is additionally provided with heat dissipation fin 9, the regulating valve 2 and the blowdown pipe body 1 are vertically distributed, and the regulating valve 2 and the blowdown pipe body 1 are fixedly connected through bolts, the number of support column 4 is four, and two support column 4 are a group, and each group of support column 4 is symmetrically arranged on both sides of the lower end of the waste heat recovery tank 3 with the front central axis of the waste heat recovery tank 3, the liquid inlet pipe 5 and the waste heat recovery tank 3 are embeddedly connected, and the liquid inlet pipe 5 is fixedly connected with the waste heat recovery tank 3 through bolts, the shunt pipe 8 and the liquid collecting cavity 7 are vertically distributed, and the shunt pipe 8 is limited between the two liquid collecting cavities 7, the heat dissipation fin 9 and the shunt pipe 8 are vertically distributed, and the heat dissipation fin 9 is equidistantly distributed outside the shunt pipe 8, the waste heat recovery tank 3 is fixedly installed outside the blowdown pipe body 1 through sealing elements and fastening bolts, and cooperates with the support column 4 to improve the stability of the waste heat recovery tank 3 during use, the blowdown pipe body 1 is shunted in the waste heat recovery tank 3 through the liquid collecting cavity 7, and the shunted boiler water flows into the shunt pipe 8, thereby increasing the flow of boiler water containing waste heat in the waste heat recovery tank 3, and cooperating with the heat dissipation fin 9 to quickly discharge the waste heat of the boiler water in the shunt pipe 8, water source is transported into the waste heat recovery tank 3 through the liquid inlet pipe 5, and the water in the waste heat recovery tank 3 is heated by the heat dissipated in the shunt pipe 8, so that the heated water is discharged through the liquid outlet pipe 6, the heat-exchanged water flows into the heating pipeline to heat the workshop heating and heating users, thereby improving the energy saving of the boiler continuous blowdown device during use.
[0023] As Figure 1 And Figure 3As shown, a filter box 10 is installed at the front end of the main body 1 of the sewage pipe. An activated carbon filter layer 11 is installed on the left side inside the filter box 10, and a nano filter layer 12 is installed on the right side inside the filter box 10. The external dimensions of the activated carbon filter layer 11 are adapted to the internal dimensions of the filter box 10, and the activated carbon filter layer 11 is fixedly connected to the filter box 10 by bolts. The outer sides of the activated carbon filter layer 11 and the nano filter layer 12 are horizontally distributed and tightly fitted to each other. The filter box 10 is fixedly installed at the front end of the main body 1 of the sewage pipe by fastening bolts, and the activated carbon filter layer 11 and the nano filter layer 12 are fixedly installed inside the filter box 10. The activated carbon filter layer 11 and the nano filter layer 12 are used to filter the boiler water flowing inside the main body 1 of the sewage pipe, preventing the formation of scale and dirt, extending the service life of the continuous boiler blowdown device, reducing the cleaning of the continuous boiler blowdown device by the staff, and improving the overall practicality and efficiency of the continuous boiler blowdown device.
[0024] In summary, this continuous boiler blowdown device with waste heat recovery structure, during operation, firstly regulates the flow rate of boiler water through the regulating valve 2 located at the upper end of the blowdown pipe body 1. The waste heat recovery tank 3 is then fixedly installed outside the blowdown pipe body 1 using seals and fastening bolts, and the support column 4 enhances the stability of the waste heat recovery tank 3 during operation. Inside the waste heat recovery tank 3, the blowdown pipe body 1 is diverted through the liquid collection chamber 7, and the diverted boiler water flows into the diversion pipe 8, thereby increasing the flow of boiler water containing waste heat within the waste heat recovery tank 3. Simultaneously, the heat dissipation fins 9 facilitate the rapid discharge of waste heat from the boiler water inside the diversion pipe 8. Water is then supplied to the waste heat recovery tank 3 via the liquid inlet pipe 5 and diverted... The heat emitted from inside pipe 8 heats the water inside waste heat recovery tank 3, causing the heated water to be discharged through outlet pipe 6. The heat-exchanged water flows into the heating pipe to provide heating for the workshop and users. Then, the filter box 10 is fixedly installed at the front end of the main body of the sewage pipe 1 by fastening bolts, and the activated carbon filter layer 11 and the nano filter element layer 12 are fixedly installed inside the filter box 10. The activated carbon filter layer 11 and the nano filter element layer 12 are used to filter the boiler water flowing inside the main body of the sewage pipe 1, preventing the formation of scale and dirt, extending the service life of the continuous boiler blowdown device, reducing the cleaning of the continuous boiler blowdown device by the staff, and improving the overall practicality and efficiency of the continuous boiler blowdown device.
[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A boiler continuous blowdown device having a waste heat utilization structure, comprising a blowdown pipe main body (1) and a waste heat recovery tank (3), characterized in that, The sewage pipe body (1) upper end is provided with adjusting valve (2), and sewage pipe body (1) outside is provided with waste heat recovery tank (3), and waste heat recovery tank (3) lower end is installed with support column (4), while waste heat recovery tank (3) upper end middle part is provided with liquid inlet pipe (5), waste heat recovery tank (3) outside middle end is provided with liquid outlet pipe (6), and waste heat recovery tank (3) inside both ends are provided with liquid collecting cavity (7), and liquid collecting cavity (7) outside is provided with shunt pipe (8), while shunt pipe (8) outside is additionally provided with heat dissipation fin (9), the sewage pipe body (1) front end is provided with filter box (10), and filter box (10) inside left side is provided with activated carbon filter layer (11), and filter box (10) inside right side is provided with nano filter core layer (12).
2. The boiler continuous blowdown device with waste heat utilization structure according to claim 1, characterized in that, The adjusting valve (2) is vertically distributed with the sewage pipe body (1), and the adjusting valve (2) is fixedly connected with the sewage pipe body (1) through bolts.
3. The continuous blowdown device for a boiler having a waste heat utilization structure according to claim 1, characterized by The number of support column (4) is four, and two support column (4) is a group, and each group of support column (4) is symmetrically arranged on both sides of the lower end of waste heat recovery tank (3) with the front central axis of waste heat recovery tank (3).
4. The boiler continuous blowdown device with waste heat utilization structure according to claim 1, characterized in that, The liquid inlet pipe (5) is embeddedly connected with the waste heat recovery tank (3), and the liquid inlet pipe (5) is fixedly connected with the waste heat recovery tank (3) through bolts.
5. The boiler continuous blowdown device with waste heat utilization structure according to claim 1, characterized in that, The shunt pipe (8) is vertically distributed with the liquid collecting cavity (7), and the shunt pipe (8) is limited between two liquid collecting cavities (7).
6. The boiler continuous blowdown device with waste heat utilization structure according to claim 1, characterized in that, The heat dissipation fin (9) is vertically distributed with the shunt pipe (8), and the heat dissipation fin (9) is equidistantly distributed outside the shunt pipe (8).
7. The boiler continuous blowdown device with waste heat utilization structure according to claim 1, characterized in that, The outer dimension of the activated carbon filter layer (11) is adapted to the inner dimension of the filter box (10), and the activated carbon filter layer (11) is fixedly connected with the filter box (10) through bolts.
8. The boiler continuous blowdown device with waste heat utilization structure according to claim 1, characterized in that, The outer side of the activated carbon filter layer (11) is horizontally distributed with the outer side of the nano filter core layer (12), and the outer side of the activated carbon filter layer (11) is closely attached to the outer side of the nano filter core layer (12).