High-temperature tail gas heat energy recovery device
By adopting a dual-chamber structure and a multi-stage deflux design in the high-temperature exhaust heat energy recovery device, the problems of low heat exchange efficiency and high cost in the prior art are solved, and efficient heat energy recovery and utilization are achieved.
Patent Information
- Application Number
- CN202422095806.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-28
AI Technical Summary
The existing high-temperature exhaust heat energy recovery devices have problems such as low heat exchange efficiency, complex equipment structure and high operating costs.
A high-temperature exhaust gas heat energy recovery device is designed, using partitions to separate the heat exchange box into two chambers, and a heat exchange assembly is set in each chamber. Combined with a multi-stage buckling design of the flow guide plate and the flow shield, the contact time and area of the exhaust gas and the heat exchange pipe are increased, and efficient recovery is achieved through multiple heat energy exchanges.
It significantly improves the recovery rate of heat energy in exhaust gas, reduces energy waste, improves the overall heat exchange efficiency of the system and reduces operating costs.
Smart Images
Figure CN223064407U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tail gas treatment, in particular to a high-temperature tail gas heat energy recovery device. Background Technique
[0002] In today's society, with the acceleration of the industrialization process and the continuous growth of energy demand, the consumption of traditional fossil fuels (such as coal, oil, and natural gas) has been increasing continuously. This not only leads to the increasing depletion of energy resources but also causes serious environmental problems such as air pollution and the intensification of the greenhouse effect. Therefore, improving energy utilization efficiency, developing new energy, and achieving energy conservation and emission reduction have become the focus of global attention.
[0003] During the preparation process of materials such as antimony sulfide (Sb2S3), a large amount of high-temperature tail gas is generated. This tail gas contains a large amount of heat energy. If directly discharged into the environment, it will not only cause a huge waste of energy but also cause thermal pollution to the environment. To improve energy utilization efficiency and reduce environmental pollution, it is particularly important to develop a high-temperature tail gas heat energy recovery device.
[0004] At present, certain progress has been made in high-temperature tail gas heat energy recovery technology, but there are still some problems, such as low heat exchange efficiency, complex equipment structure, and high operating costs. To solve these problems, this paper proposes a new type of high-temperature tail gas heat energy recovery device, aiming to effectively recover and utilize the heat energy of the high-temperature tail gas generated during the preparation of antimony sulfide by optimizing the heat exchange structure and improving the heat exchange efficiency. Content of the Utility Model
[0005] The utility model aims at the technical problems existing in the prior art and provides a high-temperature tail gas heat energy recovery device to solve the problems of low efficiency and high cost of tail gas heat energy recovery.
[0006] The technical solution of the utility model to solve the above technical problems is as follows: A high-temperature tail gas heat energy recovery device includes a heat exchange box, and a partition is arranged inside the heat exchange box; the partition divides the inner cavity of the heat exchange box into a first chamber and a second chamber, and the tops of the first chamber and the second chamber are interconnected; heat exchange components are arranged in both the first chamber and the second chamber of the heat exchange box; an air inlet pipe and an exhaust pipe communicating with the first chamber and the second chamber are respectively arranged on the heat exchange box;
[0007] When the high-position tail gas enters the heat exchange box along the air inlet pipe, it is sequentially heat-exchanged by the heat exchange components in the first chamber and the second chamber, and is discharged through the exhaust pipe.
[0008] On the basis of the above technical solution, the utility model can also be improved as follows.
[0009] Further, the heat exchange assembly includes a plurality of sets of flow guiding plates arranged at intervals and a flow guiding cover. A heat exchange channel with multi-stage baffles is formed between the flow guiding cover and the flow guiding plates; a plurality of sets of heat exchange tubes arranged at intervals are uniformly distributed on each of the flow guiding plates.
[0010] Further, the bottom edge of the flow guiding plate is provided with a water inlet branch pipe communicating with each heat exchange tube, and its top edge is provided with a water drainage branch pipe communicating with each heat exchange tube.
[0011] Further, the heat exchange box is also provided with a main water inlet pipe communicating with each water inlet branch pipe and a main water drainage pipe communicating with each water drainage branch pipe.
[0012] Further, an air supply pipe is also provided along the connection between the first chamber and the second chamber of the heat exchange box, and a high-pressure blower is arranged in the air supply pipe; the high-pressure blower generates an air flow to drive the tail gas to enter the second chamber from the first chamber.
[0013] Further, a liquid discharge pipe communicating with the inside of the first chamber and the second chamber respectively is also provided at the bottom of the heat exchange box.
[0014] Further, a hanging bracket is also installed on the heat exchange box.
[0015] Moreover, the high-temperature tail gas heat energy recovery device provided by the present utility model has at least the following beneficial effects compared with the prior art:
[0016] 1. By designing the heat exchange box into a structure with a first chamber and a second chamber and arranging heat exchange assemblies in both of these two chambers, the high-temperature tail gas can flow sequentially in these two chambers and conduct multiple heat energy exchanges. This design significantly improves the recovery rate of heat energy in the tail gas and reduces energy waste.
[0017] 2. The heat exchange assembly adopts a multi-stage baffle design, including flow guiding plates, a flow guiding cover and heat exchange tubes, which increases the contact time and contact area between the tail gas and the working fluid. This complex heat exchange channel structure enables more sufficient and efficient heat energy exchange and improves the overall heat exchange efficiency of the system. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0019] Figure 2 is a schematic diagram of the partial structure of the present utility model;
[0020] Figure 3 is a schematic diagram of the heat exchange direction of the present utility model.
[0021] In the drawings, the list of components represented by each reference numeral is as follows:
[0022] 1. Heat exchange box; 2. Partition board; 3. Heat exchange component; 3.1 Deflector; 3.2 Deflector hood; 3.3 Heat exchange tube; 3.4 Inlet branch pipe; 3.5 Drainage branch pipe; 4. Air inlet pipe; 5. Exhaust pipe; 6. Main water inlet pipe; 7. Main drain pipe; 8. Air supply pipe; 9. Liquid discharge pipe; 10. Hanger. Detailed implementation mode
[0023] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.
[0024] It should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" in the terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For those of ordinary skill in the art, the specific meanings of such terms in this patent can be understood according to specific circumstances.
[0025] As Figure 1 , Figure 2 and Figure 3 shown, the high-temperature tail gas heat energy recovery device of the present utility model design includes a heat exchange box 1, and a partition board 2 is arranged in the heat exchange box 1; the partition board 2 divides the inner cavity of the heat exchange box 1 into a first chamber and a second chamber, and the tops of the first chamber and the second chamber are interconnected; heat exchange components 3 are arranged in both the first chamber and the second chamber of the heat exchange box 1; an air inlet pipe 4 and an exhaust pipe 5 communicating with the first chamber and the second chamber are respectively arranged on the heat exchange box 1;
[0026] When the high-position tail gas enters the heat exchange box 1 along the air inlet pipe 4, it is sequentially heat-exchanged by the heat exchange components 3 in the first chamber and the second chamber, and is discharged through the exhaust pipe 5.
[0027] The device is mainly composed of a heat exchange box 1. The heat exchange box is divided into two independent but top-connected spaces - a first chamber and a second chamber by a partition board 2. Such a design enables the high-temperature tail gas to flow sequentially in these two chambers and conduct heat energy exchange.
[0028] In both chambers of the heat exchange box, heat exchange components 3 are installed. These heat exchange components are responsible for transferring the heat energy in the tail gas to other media such as water or other working fluids, thereby realizing the recovery of heat energy.
[0029] During specific operation, the high-temperature tail gas enters the first chamber of the heat exchange box through the air inlet pipe 4 and conducts preliminary heat energy exchange with the heat exchange components in the first chamber. Subsequently, since the tops of the first chamber and the second chamber are interconnected, the tail gas will naturally rise or be guided by an auxiliary device such as a high-pressure blower to enter the second chamber, and conduct further heat energy exchange with the heat exchange components in the second chamber.
[0030] After two heat exchanges, most of the thermal energy in the tail gas has been recovered, and the temperature has decreased significantly. Finally, it is discharged from the heat exchange box through the exhaust pipe 5. The recovered thermal energy is transferred to the working fluid through the heat exchange component, and the working fluid can then be utilized by other systems, such as for heating or power generation.
[0031] As an implementation manner, the heat exchange component 3 includes multiple groups of deflector plates 3.1 arranged at intervals and a deflector hood 3.2. A heat exchange channel with multi-stage baffles is formed between the deflector hood 3.2 and the deflector plates 3.1; multiple groups of heat exchange tubes 3.3 arranged at intervals are uniformly distributed on each of the deflector plates 3.1.
[0032] By combining multiple groups of deflector plates 3.1 arranged at intervals and the deflector hood 3.2, the heat exchange component constructs a complex multi-stage baffle heat exchange channel. This design enables the high-temperature tail gas to flow along a tortuous path when passing through the heat exchange component, increasing the contact time and contact area between the tail gas and the heat exchange tubes 3.3, thereby improving the efficiency of heat energy exchange.
[0033] Specifically, the bottom edge of the deflector plate 3.1 is provided with a water inlet branch pipe 3.4 communicating with each heat exchange tube 3.3, and its top edge is provided with a water drainage branch pipe 3.5 communicating with each heat exchange tube 3.3.
[0034] To ensure that the working fluid can flow through the heat exchange tubes 3.3 continuously and evenly, the bottom edge of the deflector plate 3.1 is provided with a water inlet branch pipe 3.4 for introducing the working fluid into the heat exchange tubes; and its top edge is provided with a water drainage branch pipe 3.5 for discharging the heated working fluid. In this way, a closed circulation loop is formed for the working fluid in the heat exchange tubes.
[0035] The heat exchange box 1 is further equipped with a main water inlet pipe 6 communicating with each water inlet branch pipe 3.4, and a main water drainage pipe 7 communicating with each water drainage branch pipe 3.5.
[0036] The main water inlet pipe 6 is responsible for introducing the external working fluid into each water inlet branch pipe 3.4, while the main water drainage pipe 7 is responsible for collecting and discharging the heated working fluid from each water drainage branch pipe 3.5 for subsequent utilization or treatment.
[0037] As an implementation manner, the heat exchange box 1 is further provided with an air supply pipe 8 along the connection between the first chamber and the second chamber, and a high-pressure blower is arranged in the air supply pipe 8; the high-pressure blower generates air flow to drive the tail gas to enter the second chamber from the first chamber. This not only enhances the fluidity of the tail gas in the heat exchange box but also helps to improve the heat exchange efficiency between the tail gas and the heat exchange medium.
[0038] Specifically, a drain pipe 9 is further provided at the bottom of the heat exchange box 1 and is communicated with the first chamber and the second chamber respectively. The drain pipe 9 is internally communicated with the first chamber and the second chamber respectively, so that the liquids in the two chambers can be smoothly discharged through the drain pipe.
[0039] Specifically, a hanging bracket 10 is further installed on the heat exchange box 1. The hanging bracket 10 provides a stable lifting point for the staff, making it more convenient and safe to transport, install and maintain the heat exchange box.
[0040] It should be noted that in this article, the terms "including", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0041] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.
[0042] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.
Claims
1. A high-temperature tail gas heat energy recovery device, characterized in that, It includes a heat exchange box (1), and a partition plate (2) is arranged inside the heat exchange box (1); the partition plate (2) divides the inner cavity of the heat exchange box (1) into a first chamber and a second chamber, and the tops of the first chamber and the second chamber are in communication with each other; heat exchange components (3) are arranged in both the first chamber and the second chamber of the heat exchange box (1); an air inlet pipe (4) and an exhaust pipe (5) that are in communication with the first chamber and the second chamber are respectively arranged on the heat exchange box (1); When the high-position tail gas enters the heat exchange box (1) along the air inlet pipe (4), it is sequentially heat-exchanged by the heat exchange components (3) in the first chamber and the second chamber, and is discharged by the exhaust pipe (5).
2. The high-temperature tail gas heat energy recovery device according to claim 1, characterized in that, The heat exchange component (3) includes a plurality of groups of baffle plates (3.1) arranged at intervals and a flow guide cover (3.2), and a heat exchange channel with multi-stage folding flow is formed between the flow guide cover (3.2) and the baffle plates (3.1); a plurality of groups of heat exchange tubes (3.3) arranged at intervals are uniformly arranged on each baffle plate (3.1).
3. The high-temperature tail gas heat energy recovery device according to claim 2, wherein, Water inlet branch pipes (3.4) that are in communication with each heat exchange tube (3.3) are arranged at the bottom edge of the baffle plate (3.1), and water drainage branch pipes (3.5) that are in communication with each heat exchange tube (3.3) are arranged at the top edge of the baffle plate (3.1).
4. The high-temperature tail gas heat energy recovery device according to claim 3, wherein A main water inlet pipe (6) that is in communication with each water inlet branch pipe (3.4) and a main water drainage pipe (7) that is in communication with each water drainage branch pipe (3.5) are further installed on the heat exchange box (1).
5. The high-temperature tail gas heat energy recovery device according to claim 1, characterized in that, An air supply pipe (8) is further arranged along the communication position of the first chamber and the second chamber of the heat exchange box (1), and a high-pressure blower is arranged inside the air supply pipe (8); the high-pressure blower generates an air flow to drive the tail gas to enter the second chamber from the first chamber.
6. The high-temperature tail gas heat energy recovery device according to claim 1, characterized in that, Drainage pipes (9) that are respectively in communication with the inside of the first chamber and the second chamber are further arranged at the bottom of the heat exchange box (1).
7. The high-temperature tail gas heat energy recovery device according to claim 1, characterized in that, A hanging bracket (10) is further installed on the heat exchange box (1).