Industrial waste heat recycling device

Abstract

The utility model discloses an industrial waste heat recycling device which comprises an exchange bin. A water tank is arranged on the left side of the exchange bin, a heat absorbing plate is arranged on the left side of the water tank, a cold air bin is arranged at the lower end of the right side of the exchange bin, and a first connecting pipe is arranged on the lower side of the cold air bin. A second connecting pipe is arranged at the upper end of the hot air bin, four sets of water pipes are arranged on the right side of the water tank, under the spiral winding structure, heat can be rapidly transferred to a cold source from a heat source, the waste heat recovery efficiency is improved, the heat conduction performance of carbon steel is beneficial to more evenly distributing the temperature on the whole heat exchange surface in the exchange process, and the heat exchange efficiency is improved. According to the heat exchanger, the situation of local overheating or supercooling is avoided, so that the stability and reliability of heat exchange are improved, carbon steel has a good heat conductivity coefficient, and heat of hot water in the exchange pipes between the water pipes can be effectively exchanged with cold air of the exchange pipes between the two sets of air inlet pipes and air outlet pipes.

Description

Technical Field

[0001] This utility model relates to the field of industrial waste heat recovery and utilization technology, specifically to an industrial waste heat recovery and utilization device. Background Technology

[0002] In many industrial production processes, a large amount of waste heat is directly released into the environment without being effectively utilized. For example, the heat carried by high-temperature flue gas and wastewater from industries such as metallurgy, chemicals, and building materials is often directly discharged, resulting in enormous energy waste. According to relevant data, my country's industrial sector accounts for a large portion of the country's total energy consumption, and a considerable portion of this energy is lost as waste heat, with a recovery rate of about 60%. With economic development and population growth, the demand for energy is constantly increasing. Traditional energy supply methods are no longer sufficient to meet the growing demand and face the problem of gradually depleting energy resources. Therefore, improving energy efficiency and recovering and utilizing industrial waste heat has become one of the important ways to alleviate the contradiction between energy supply and demand.

[0003] This utility model, disclosed in announcement number CN214840926U, discloses an industrial waste heat recovery and reuse device, comprising: a boiler body, a fan, support rods, an exhaust pipe, a heat exchange box, a circulation pipe, and a water inlet pipe. The outer top surface of the dust collector is fixedly connected to the outer bottom surface of the heat exchange box. The dust collector is disposed between two support rods, and the outer bottom surfaces at both ends of the heat exchange box are connected to the two ends of the top surface of the boiler body through the support rods. An exhaust pipe is provided, the lower part of which penetrates one side of the heat exchange box. The upper part of the exhaust pipe and the upper part of the air inlet pipe are both connected through the inner top surface of the heat exchange box, and the lower part of the air inlet pipe extends into the interior of the dust collector through the inner bottom surface of the heat exchange box. This waste heat recovery and reuse device facilitates the filtration of dust in flue gas, extends its service life, protects the environment, and accelerates heat exchange efficiency, making waste heat recovery more complete and thus improving the energy recovery rate. However, the above-mentioned recovery and reuse device is relatively simple and cannot effectively transfer and recover heat. Moreover, the above-mentioned device cannot effectively observe the internal condition of the device and cannot replace damaged parts in a timely manner. Therefore, we propose an industrial waste heat recovery and reuse device. Utility Model Content

[0004] The purpose of this invention is to provide an industrial waste heat recovery and utilization device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an industrial waste heat recovery and utilization device, including an exchange chamber:

[0006] A water tank is located on the left side of the exchange chamber, and a heat absorption plate is located on the left side of the water tank. A cold air chamber is located at the lower right side of the exchange chamber, and a first connecting pipe is located on the lower side of the cold air chamber. A hot air chamber is located at the upper right side of the exchange chamber, and a second connecting pipe is located at the upper end of the hot air chamber. Four sets of water pipes are located on the right side of the water tank. Two sets of air inlet pipes are located on the left side of the cold air chamber, and two sets of air outlet pipes are located on the left side of the hot air chamber. The two sets of air inlet pipes and the two sets of air outlet pipes are connected by four sets of exchange pipes. The four sets of water pipes are connected by four sets of exchange pipes.

[0007] Preferably, two sets of positioning plates are provided on both the front and rear sides of the water tank, and positioning bolts are inserted into the middle of the four sets of positioning plates through a threaded structure, which facilitates the installation of the device.

[0008] Preferably, the upper surface of the water tank is provided with a water inlet, and the upper end of the water inlet is provided with a sealing plug to facilitate adding water to the water tank.

[0009] Preferably, the heat-absorbing plate is made of copper-aluminum alloy, which facilitates the transfer of waste heat into the water in the water tank.

[0010] Preferably, the exchange pipes between the four sets of water pipes are spirally wound and connected to the exchange pipes between the two sets of air inlet pipes and air outlet pipes, which facilitates heat exchange between the exchange pipes.

[0011] Preferably, all of the aforementioned heat exchange tubes are made of carbon steel to improve the heat exchange effect.

[0012] Preferably, a slot is provided on the front side of the exchange chamber, and an observation window is provided in the slot to facilitate observation of the situation inside the exchange chamber.

[0013] This utility model has at least the following beneficial effects:

[0014] By incorporating spirally wound exchange tubes, heat can be rapidly transferred from the heat source to the cold source, improving the efficiency of waste heat recovery. The thermal conductivity of carbon steel helps to distribute the temperature more evenly across the entire heat exchange surface during the exchange process, avoiding local overheating or overcooling, thereby improving the stability and reliability of heat exchange. Carbon steel has a good thermal conductivity, which can effectively exchange the heat of the hot water in the exchange tubes between the water pipes with the cold air in the exchange tubes between the two sets of air inlet and outlet pipes.

[0015] With an observation window, when the device malfunctions, maintenance personnel can quickly check the condition of the components inside the exchange chamber. The observation window can help determine the location of the fault, reducing maintenance time and costs. The connection of components such as water pipes, air inlet pipes, and air outlet pipes can also be checked to see if there are any loose or damaged issues. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the disassembly of the novel structure of this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the novel structure of the practical exchange compartment;

[0019] Figure 4 A schematic diagram of the structure of the exchange tube of this utility model.

[0020] In the diagram: 1. Exchange chamber; 2. Water tank; 3. Positioning plate; 4. Positioning bolt; 5. Water inlet; 6. Sealing plug; 7. Heat absorption plate; 8. Cold air chamber; 9. First connecting pipe; 10. Hot air chamber; 11. Second connecting pipe; 12. Water pipe; 13. Air inlet pipe; 14. Air outlet pipe; 15. Exchange pipe; 16. Observation window. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: an industrial waste heat recovery and utilization device, including an exchange chamber 1:

[0023] A water tank 2 is located on the left side of the exchange chamber 1, and a heat absorption plate 7 is located on the left side of the water tank 2. A cold air chamber 8 is located at the lower right side of the exchange chamber 1, and a first connecting pipe 9 is located on the lower side of the cold air chamber 8. A hot air chamber 10 is located at the upper right side of the exchange chamber 1, and a second connecting pipe 11 is located at the upper end of the hot air chamber 10. Four sets of water pipes 12 are located on the right side of the water tank 2. Two sets of air inlet pipes 13 are located on the left side of the cold air chamber 8, and two sets of air outlet pipes 14 are located on the left side of the hot air chamber 10. The two sets of air inlet pipes 13 and the two sets of air outlet pipes 14 are connected by four sets of exchange pipes 15. The four sets of water pipes 12 are connected by four sets of exchange pipes 15.

[0024] Two sets of positioning plates 3 are provided on both the front and rear sides of the water tank 2, and a positioning bolt 4 is inserted into the middle of each of the four sets of positioning plates 3 through a threaded structure. By inserting the positioning bolt 4 into the positioning plate 3, the position of the water tank 2 can be effectively fixed to prevent it from shifting or shaking during operation. The positioning bolt 4 with a threaded structure can be easily installed and removed without the need for complicated tools or equipment.

[0025] The upper surface of the water tank 2 is provided with a water inlet 5, and the upper end of the water inlet 5 is provided with a sealing plug 6. The water inlet 5 is provided to facilitate the addition of water to the water tank 2, ensuring that the water tank 2 is kept full. The sealing plug 6 can seal the water tank 2 to prevent dirt and dust from entering the water tank 2 and causing corrosion to the water pipe 12 and the exchange pipe 15.

[0026] The heat absorber plate 7 is made of copper-aluminum alloy. Copper-aluminum alloy has a high thermal conductivity, which allows the heat absorber plate 7 to quickly absorb and transfer heat, ensuring that industrial waste heat can be effectively transferred to the water in the water tank 2 during use.

[0027] The exchange pipes 15 between the four sets of water pipes 12 are spirally wound and connected to the exchange pipes 15 between the two sets of air inlet pipes 13 and air outlet pipes 14. All the exchange pipes 15 are made of carbon steel. Carbon steel has a good thermal conductivity, which can effectively exchange the heat of the hot water in the exchange pipes 15 between the water pipes 12 with the cold air in the exchange pipes 15 between the two sets of air inlet pipes 13 and air outlet pipes 14. Under the spiral winding structure, heat can be quickly transferred from the heat source to the cold source, improving the efficiency of waste heat recovery. The thermal conductivity of carbon steel helps to make the temperature more evenly distributed on the entire heat exchange surface during the exchange process, avoiding local overheating or overcooling, thereby improving the stability and reliability of heat exchange.

[0028] The front side of the exchange chamber 1 has a slot, and an observation window 16 is installed in the slot. When the device malfunctions, the observation window 16 allows maintenance personnel to quickly check the condition of the components inside the exchange chamber 1. The location of the fault can be preliminarily determined through the observation window 16, reducing maintenance time and costs.

[0029] Working principle: The device is installed in a suitable position by positioning plate 3 and positioning bolt 4. Then, the sealing plug 6 is opened to add an appropriate amount of water to water tank 2. Heat is then absorbed into the water by heat absorption plate 7. Cold air is then transported to cold air chamber 8 through first connecting pipe 9. Cold air is then transported to hot air chamber 10 through air inlet pipe 13, exchange pipe 15 and air outlet pipe 14. During the transportation process, heat in the water is transferred to the cold air in air inlet pipe 13, exchange pipe 15 and air outlet pipe 14 through exchange pipe 15 between water pipes 12, which can utilize waste heat.

[0030] The motor used in this application

[0031] These are products that can be purchased directly from the market. Their principles, connection methods, and control methods are all existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Industrial waste heat recovery and utilization device, characterized by, Including exchange warehouse (1): The left side of the exchange warehouse (1) is provided with a water tank (2), and the left side of the water tank (2) is provided with a heat absorption plate (7). The lower end of the right side of the exchange warehouse (1) is provided with a cold air warehouse (8), and the lower side of the cold air warehouse (8) is provided with a first connecting pipe (9). The upper end of the right side of the exchange warehouse (1) is provided with a hot air warehouse (10), and the upper end of the hot air warehouse (10) is provided with a second connecting pipe (11). The right side of the water tank (2) is provided with four groups of water pipes (12). The left side of the cold air warehouse (8) is provided with two groups of air inlet pipes (13), and the left side of the hot air warehouse (10) is provided with two groups of air outlet pipes (14). The two groups of air inlet pipes (13) and the two groups of air outlet pipes (14) are connected by four groups of exchange pipes (15) respectively. Four groups of exchange pipes (15) are connected between the four groups of water pipes (12).

2. The industrial waste heat recovery device according to claim 1, characterized by: The front and rear sides of the water tank (2) are provided with two groups of positioning pieces (3), and the middle positions of the four groups of positioning pieces (3) are inserted with positioning pins (4) through thread structure.

3. The industrial waste heat recovery device according to claim 1, characterized by: The upper surface of the water tank (2) is provided with a water inlet (5), and the inner upper end of the water inlet (5) is provided with a sealing plug (6).

4. The industrial waste heat recovery device according to claim 1, characterized by: The heat absorption plate (7) is composed of copper-aluminum alloy material.

5. The industrial waste heat recovery device according to claim 1, characterized by: The exchange pipes (15) between the four groups of water pipes (12) are respectively spirally wound and connected with the exchange pipes (15) between the two groups of air inlet pipes (13) and air outlet pipes (14).

6. The industrial waste heat recovery device according to claim 1, characterized by: A plurality of groups of the exchange pipes (15) are composed of carbon steel material.

7. The industrial waste heat recovery device according to claim 1, characterized by: The front side of the exchange warehouse (1) is provided with a slot, and the slot is provided with an observation window (16).

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