Convection bank waste heat recovery synergistic device for producing glass beads

Abstract

The utility model discloses a convection bank waste heat recovery synergistic device for producing glass beads. Two water storage tanks are arranged in a boiler flue, and an upper layer pipeline and a lower layer pipeline are arranged in each water storage tank. The upper-layer steam-water outlet pipe is communicated with a plurality of steam ascending pipes, and vaporized steam is conveyed to the upper boiler barrel; the lower-layer water collecting pipe is connected with a plurality of water descending pipes and receives liquefied water of the upper boiler barrel. The steam ascending pipe and the water descending pipe are connected with the upper boiler barrel, and the top end of the steam ascending pipe is higher. The upper boiler barrel is provided with a sealing pressure-resistant structure and a steam-water separation and purification assembly and is further provided with a water level adjusting and pressure monitoring device. The heat insulation layer wraps the water storage tank, and the connection portion is of a sealed detachable structure. The device effectively solves the problem that waste heat of a flue of a traditional glass bead production boiler is not fully utilized, the energy utilization rate is greatly increased, the production cost is reduced, the environmental pollution is reduced through an efficient steam-water circulation system, and powerful guarantee is provided for energy conservation and efficiency improvement of the glass bead production industry.

Description

Technical Field

[0001] This utility model relates to the field of boiler machinery technology, and in particular to a convection tube bundle waste heat recovery and efficiency enhancement device for the production of glass microspheres. Background Technology

[0002] In the industrial production of glass microspheres, boiler performance plays a crucial role in energy utilization and production efficiency. Traditional boilers for producing glass microspheres, such as the waste heat recovery boiler involved in CN207418577U, have achieved waste heat recovery to a certain extent, but there is still room for improvement.

[0003] The waste heat recovery boiler (CN207418577U) applied for by the original applicant mainly consists of an equipment base, a combustion production chamber, and a combustion diffusion chamber. The combustion production chamber is used for the combustion and melting of raw materials, while the combustion diffusion chamber is used for product forming. Part of the heat is recovered through structures such as membrane water-cooled walls. However, in actual production, it was found that its utilization of flue gas waste heat is insufficient, with a large amount of heat still being lost with the flue gas, leading to energy waste, increased production costs, and environmental problems.

[0004] With the increasing demands for energy conservation and emission reduction in industrial production, and the need for enterprises to reduce costs and enhance competitiveness, there is an urgent need to further optimize the waste heat recovery function of existing glass microsphere production boilers. Therefore, developing a new convection tube bundle waste heat recovery efficiency enhancement device is essential. By innovatively installing a water storage tank, steam and water outlet pipes, steam riser pipes, water collection pipes, and water downcomer pipes within the boiler flue, and by improving the structure and function of the upper boiler drum, the aim is to more efficiently recover flue gas waste heat, improve energy utilization efficiency, reduce energy consumption and environmental pollution, and provide technical support for the sustainable development of the glass microsphere production industry. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a convection tube bundle waste heat recovery and efficiency enhancement device for the production of glass microspheres.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A waste heat recovery and efficiency enhancement device for convection tube bundles used in the production of glass microspheres includes two water storage tanks installed in the boiler flue, each having space to accommodate pipes and steam / water. Each water storage tank is equipped with:

[0008] A steam outlet pipe located at the top layer is connected to a steam riser pipe;

[0009] A water collection pipe located on the lower level;

[0010] Several steam riser pipes, each steam and water outlet pipe is connected to a steam riser pipe, one end of the steam riser pipe is connected to the steam and water outlet pipe, and the other end extends into the upper drum and its top is higher than the top of the water downcomer pipe.

[0011] Several downcomers, each water collection pipe is connected to a downcomer, one end of the downcomer is connected to the upper drum, the other end is connected to the water collection pipe and its top is located inside the upper drum;

[0012] The upper boiler drum is connected to the steam riser pipe and the water downcomer pipe. The upper boiler drum has a sealing structure and a pressure-resistant structure. The upper boiler drum is equipped with a steam-water separation and purification component.

[0013] Preferably, the outside of the water storage tank is wrapped with a heat insulation layer.

[0014] Preferably, the connection points between the steam / water outlet pipe and the steam riser pipe, as well as between the water downcomer pipe and the water collection pipe, are provided with a sealed and detachable connection structure.

[0015] Furthermore, the upper drum is equipped with a water level regulating device and a pressure monitoring device.

[0016] The beneficial effects of this utility model are as follows:

[0017] By installing a water storage tank, steam-water outlet pipes, steam riser pipes, water collection pipes, water downcomer pipes, and an upper drum equipped with steam-water separation and purification components, water level regulating devices, and pressure monitoring devices within the boiler flue, a highly efficient steam-water circulation system is constructed. This system effectively recovers waste heat from the boiler flue, converting previously lost heat into usable steam energy, significantly improving energy utilization and reducing production energy consumption. Its sealed and detachable connection structure facilitates equipment installation, maintenance, and repair, ensuring long-term stable operation. The insulation layer on the outside of the water storage tank reduces heat loss, further enhancing waste heat recovery and providing strong support for energy conservation and efficiency improvement in the glass microsphere production process, resulting in significant economic and environmental benefits.

[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the heat recovery structure of a convection tube bundle waste heat recovery and efficiency enhancement device for the production of glass microspheres proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the heat recovery structure (dual water tank) of a convection tube bundle waste heat recovery and efficiency enhancement device for the production of glass microspheres proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the heat recovery structure (single water tank) of a convection tube bundle waste heat recovery and efficiency enhancement device for the production of glass microspheres proposed in this utility model.

[0022] In the diagram: 1. Water storage tank; 2. Water collection pipe; 3. Steam and water outlet pipe; 4. Steam riser pipe; 5. Water downcomer pipe; 6. Upper boiler drum. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1 to 3 A convection tube bundle waste heat recovery and efficiency enhancement device for the production of glass microspheres, comprising:

[0025] Two water storage tanks 1 are installed inside the boiler flue, each having space to accommodate pipes and steam / water. Each water storage tank 1 is equipped with:

[0026] A steam outlet pipe 3 located on the upper layer is connected to a steam riser pipe 4;

[0027] A water collection pipe 2 located on the lower level;

[0028] Several steam riser pipes 4, each steam and water outlet pipe 3 is connected to 4 steam riser pipes 4, one end of the steam riser pipe 4 is connected to the steam and water outlet pipe 3, and the other end extends into the interior of the upper boiler drum 6 and its top end is higher than the top end of the water downcomer pipe 5.

[0029] Several downcomers 5, each water collection pipe 2 is connected to two downcomers 5, one end of the downcomer 5 is connected to the upper drum 6, the other end is connected to the water collection pipe 2 and its top end is located inside the upper drum 6.

[0030] The upper boiler drum 6 is connected to the steam riser pipe 4 and the water downcomer pipe 5. The upper boiler drum 6 has a sealing structure and a pressure-resistant structure. The upper boiler drum 6 is equipped with a steam-water separation and purification component.

[0031] In this embodiment, the water storage tank 1 is wrapped with a heat insulation layer, the connection between the steam and water outlet pipe 3 and the steam riser pipe 4 and the water downcomer pipe 5 and the water collection pipe 2 is provided with a sealed and detachable connection structure, and the upper boiler drum 6 is equipped with a water level regulating device and a pressure monitoring device.

[0032] Example 1

[0033] See Figure 1 as well as Figure 2

[0034] Equipment installation and preparation

[0035] First, select suitable locations within the boiler flue and install two water storage tanks 1, ensuring they are securely installed and in full contact with the hot airflow within the flue. During installation, ensure that the inlet and outlet pipe connections for the water storage tanks 1 are properly pre-installed to facilitate smooth connection with other components later. Simultaneously, tightly wrap the outside of the water storage tanks 1 with an insulation layer, ensuring the integrity of the insulation layer and minimizing heat loss.

[0036] The steam-water outlet pipe 3 and the water collection pipe 2 are installed on the upper and lower layers of the water storage tank 1, respectively. Each steam-water outlet pipe 3 is connected to the four steam riser pipes 4 using a sealed and detachable connection structure to ensure a tight and leak-free connection. Similarly, each water collection pipe 2 is connected to the two water downcomer pipes 5 using a sealed and detachable connection structure.

[0037] Install the other ends of the steam riser pipe 4 and the water downcomer pipe 5 to the upper boiler drum 6, ensuring that the top of the steam riser pipe 4 is higher than the top of the water downcomer pipe 5, and that both tops are located in appropriate positions inside the upper boiler drum 6 to ensure smooth steam-water circulation. Install the steam-water separation and purification components inside the upper boiler drum 6 and adjust them to normal operating conditions. Simultaneously, install the water level regulating device and pressure monitoring device to accurately monitor and control the water level and pressure inside the upper boiler drum 6.

[0038] Operating principle:

[0039] Once the boiler starts operating, the high-temperature airflow in the flue will gradually heat and vaporize the water in the water storage tank 1. The steam generated by vaporization will enter the steam riser pipe 4 through the steam-water outlet pipe 3, and then be transported to the upper drum 6.

[0040] Inside the upper drum 6, the steam-water mixture first undergoes treatment by the steam-water separation and purification components. The separated steam can be drawn out according to actual production needs to drive other equipment or perform heating operations. The separated water flows back to the water collection pipe 2 of the water storage tank 1 through the downcomer 5, completing one steam-water cycle.

[0041] Throughout the operation, the water level regulating device continuously monitors the water level inside the upper boiler drum 6. When the water level is too high, excess water is drained through the appropriate drainage mechanism; when the water level is too low, water is replenished in a timely manner to ensure that the water level remains within a suitable range and maintains the stable operation of the unit. The pressure monitoring device also monitors the pressure inside the upper boiler drum 6 in real time. Once the pressure exceeds the set safety range, the alarm system is immediately activated and corresponding pressure reduction measures are taken, such as adjusting the steam discharge rate, to ensure the safe operation of the unit.

[0042] Example 2

[0043] See Figure 1 as well as Figure 3

[0044] Equipment installation and preparation

[0045] First, select a suitable location within the boiler flue and install a water storage tank 1, ensuring it is securely installed and in full contact with the hot airflow within the flue. During installation, ensure that the top and bottom connection points of the water storage tank 1 are properly reserved for future connections with other components. Simultaneously, tightly wrap the outside of the water storage tank 1 with an insulation layer, ensuring the integrity of the insulation layer and minimizing heat loss.

[0046] Install a downcomer pipe 5 at the bottom of the water storage tank 1 and a steam riser pipe 4 at the top of the water storage tank 1. Connect the top ends of both the downcomer pipe 5 and the steam riser pipe 4 to the upper boiler drum 6, ensuring that the top end of the steam riser pipe 4 is higher than the top end of the downcomer pipe 5, and that both top ends are located in appropriate positions inside the upper boiler drum 6 to ensure smooth steam-water circulation.

[0047] Install a steam-water separator and purification assembly inside the upper boiler drum 6 and adjust it to normal operating condition. At the same time, install a water level regulating device and a pressure monitoring device to accurately monitor and control the water level and pressure inside the upper boiler drum 6.

[0048] Operating principle

[0049] Once the boiler starts operating, the high-temperature airflow in the flue will gradually heat and vaporize the water in the water storage tank 1. The steam generated from the vaporization will be directly transported to the upper drum 6 through the steam riser pipe 4 at the top of the water storage tank 1.

[0050] Inside the upper boiler drum 6, the steam-water mixture is processed by the steam-water separation and purification components. The separated steam can be drawn out according to actual production needs to drive other equipment or for heating operations. The separated water flows directly back to the water storage tank 1 through the downcomer 5, completing one steam-water cycle.

[0051] Throughout the operation, the water level regulating device continuously monitors the water level inside the upper boiler drum 6. When the water level is too high, excess water is drained through the appropriate drainage mechanism; when the water level is too low, water is replenished in a timely manner to ensure that the water level remains within a suitable range and maintains the stable operation of the unit. The pressure monitoring device also monitors the pressure inside the upper boiler drum 6 in real time. Once the pressure exceeds the set safety range, the alarm system is immediately activated and corresponding pressure reduction measures are taken, such as adjusting the steam discharge rate, to ensure the safe operation of the unit.

[0052] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A waste heat recovery and efficiency enhancement device for convection tube bundles used in the production of glass microspheres, characterized in that, include: Two water storage tanks (1) are installed inside the boiler flue, each having space to accommodate pipes and steam / water. Each water storage tank (1) is equipped with: A steam-water outlet pipe (3) located on the upper layer is connected to a steam riser pipe (4); A water collection pipe located on the lower level (2); Several steam riser pipes (4), each steam and water outlet pipe (3) is connected to 4 steam riser pipes (4), one end of the steam riser pipe (4) is connected to the steam and water outlet pipe (3), and the other end extends into the upper drum (6) and its top end is higher than the top of the water downcomer (5); Several water downpipes (5), each water collection pipe (2) is connected to two water downpipes (5), one end of the water downpipe (5) is connected to the upper drum (6), the other end is connected to the water collection pipe (2) and its top end is located inside the upper drum (6); The upper boiler drum (6) is connected to the steam riser pipe (4) and the water downcomer pipe (5). The upper boiler drum (6) has a sealing structure and a pressure-resistant structure. The upper boiler drum (6) is equipped with a steam-water separation and purification component.

2. The convection tube bundle waste heat recovery and efficiency enhancement device for producing glass microspheres according to claim 1, characterized in that, The water storage tank (1) is wrapped with a heat insulation layer on the outside.

3. The convection tube bundle waste heat recovery and efficiency enhancement device for producing glass microspheres according to claim 1, characterized in that, The connection between the steam and water outlet pipe (3) and the steam riser pipe (4), as well as the connection between the water downcomer pipe (5) and the water collection pipe (2), is provided with a sealed and detachable connection structure.

4. The convection tube bundle waste heat recovery and efficiency enhancement device for producing glass microspheres according to claim 1, characterized in that, The upper drum (6) is equipped with a water level regulating device and a pressure monitoring device.

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