Furfural gas ORC waste heat recovery device

By increasing the heat exchange area, providing an insulated and dry environment, and cleaning the scale buildup in the furfural aldehyde gas ORC waste heat recovery device, the problems of low heat exchange efficiency and high energy consumption in the existing device have been solved, achieving efficient waste heat recovery and system stability.

CN223649773UActive Publication Date: 2025-12-09DAQING HESHAN BIOCHEMICAL CO LTD
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Patent Information

Application Number
CN202520212455.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2025-12-09
Estimated Expiration
2035-02-11

AI Technical Summary

Technical Problem

Existing furfural aldehyde gas ORC waste heat recovery devices have limited heat exchange area, low heat exchange efficiency, and lack effective insulation and drying measures, resulting in poor waste heat recovery and increased system energy consumption.

Method used

A furfural aldehyde gas ORC waste heat recovery device was designed, including a buffer support base, a drying and heat preservation component, and a pipe anti-clogging vibration cleaning component. By increasing the heat exchange area, providing a heat preservation and drying environment, and cleaning pipe scale, the heat exchange efficiency and system stability are improved.

Benefits of technology

It significantly improves heat exchange efficiency, reduces system energy consumption, extends equipment life, and ensures long-term stable operation of the system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a furfural aldehyde gas ORC waste heat recovery device, which belongs to the technical field of waste heat recovery and comprises a first material pipe and a second material pipe, the second material pipe is connected with a heat exchange device through a second pipeline, a waste heat recovery drying box is mounted outside the heat exchange device, and a buffer support base is arranged below the waste heat recovery drying box. A drying heat preservation assembly is arranged on the portion, located in an inner cavity of the waste heat recovery drying box, of one side of the heat exchange device and can provide heat preservation and drying for the heat exchange device, so that the waste heat recovery efficiency is improved, and a pipeline anti-blocking vibration cleaning assembly is arranged on the portion, located on the inner wall of the waste heat recovery drying box, of one side of the drying heat preservation assembly. The pipeline anti-blocking vibration cleaning assembly exerts force to hit the heat exchange device, so that dirt in a pipeline in the heat exchange device is vibrated, falls off and is discharged. Therefore, the waste heat recovery efficiency and quality are improved, and waste heat loss is reduced. The waste heat recovery device improves the waste heat recovery efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of waste heat recovery technology, and in particular to a furfural aldehyde gas ORC waste heat recovery device. Background Technology

[0002] With increasing energy demand and growing environmental awareness, waste heat recovery technology is being applied more and more widely in industrial production. Especially in industries such as chemicals and pharmaceuticals, waste heat recovery not only improves energy efficiency but also reduces energy waste and environmental pollution. Furfural gas, as an important chemical raw material, generates a large amount of waste heat during its production process; how to efficiently recover and utilize this waste heat has become an urgent problem to be solved.

[0003] While existing furfural ORC waste heat recovery devices can achieve waste heat recovery to a certain extent, they still have some problems and shortcomings in practical applications. For example, existing waste heat recovery devices usually adopt simple heat exchanger structures with limited heat exchange area, resulting in low heat exchange efficiency. At the same time, the lack of effective insulation and drying measures during the waste heat recovery process leads to excessive humidity inside the heat exchanger, affecting heat exchange efficiency. This not only affects the waste heat recovery effect but also increases the system's energy consumption. Utility Model Content

[0004] The purpose of this invention is to provide a furfural aldehyde gas ORC waste heat recovery device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a furfural aldehyde gas ORC waste heat recovery device, comprising a first feed pipe and a second feed pipe, with a pump unit between the first and second feed pipes. The second feed pipe is connected to a heat exchange device via a second pipe. A waste heat recovery drying chamber is installed outside the heat exchange device. A buffer support base is provided below the waste heat recovery drying chamber, providing stable support and cushioning for the waste heat recovery drying chamber and the heat exchange device. A drying and heat preservation component is provided on one side of the heat exchange device and inside the waste heat recovery drying chamber, providing heat preservation and drying for the heat exchange device, thereby improving waste heat recovery efficiency. A pipe anti-clogging vibration cleaning component is provided on one side of the drying and heat preservation component and on the inner wall of the waste heat recovery drying chamber. The pipe anti-clogging vibration cleaning component strikes the heat exchange device, causing dirt in the pipes of the heat exchange device to be vibrated off and discharged. This improves the efficiency and quality of waste heat recovery and reduces waste heat loss. The first feed pipe is connected to the pump unit and the second feed pipe through a first pipeline.

[0006] In a preferred embodiment of this design, a buffer and shock-absorbing component is installed on the top surface of the buffer support base, and the top buffer end of the buffer and shock-absorbing component is connected to the bottom surface of the waste heat recovery drying box.

[0007] In a preferred embodiment of this scheme, the buffer and shock absorption assembly includes multiple hydraulic dampers symmetrically installed on the top surface of the buffer support base and buffer springs respectively sleeved around the periphery of each hydraulic damper.

[0008] In this preferred embodiment, the top damping end of the hydraulic damper and the top end of the buffer spring are both fixedly connected to the bottom surface of the waste heat recovery drying box.

[0009] In this preferred embodiment, a detachable baffle is bolted to one side of the waste heat recovery drying box, and one end of the heat exchange device has an inlet pipe and an outlet pipe.

[0010] In this preferred embodiment, the feed pipe passes through the waste heat recovery drying box and is connected to the free end of the second pipe, and the discharge pipe passes through a detachable baffle.

[0011] In this preferred embodiment, both ends of the heat exchange device are clamped and assembled by L-end plates arranged opposite to each other, and the L-end plates are bolted to the inner wall of one side of the waste heat recovery drying box.

[0012] In a preferred embodiment, the drying and heat preservation assembly includes an installation side plate fixed to the inner wall of the other side of the waste heat recovery drying box and multiple heat-conducting fins symmetrically installed on the upper and lower ends of the side of the installation side plate.

[0013] In this preferred embodiment, an insulating cotton pad is adhered to the middle position of the side of the mounting side plate.

[0014] In this preferred embodiment, the pipeline anti-blocking vibration cleaning assembly includes a drive motor fixed to the inner wall of the waste heat recovery drying chamber and an eccentric wheel fixed to the output shaft of the drive motor. A silicone protective pad is adhered to the outer wall of the eccentric end of the eccentric wheel. The eccentric wheel drives the silicone protective pad to strike the outer wall of one of the L-end plates, thereby causing vibration of the pipeline in the heat exchange device.

[0015] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0016] This furfural aldehyde gas ORC waste heat recovery device significantly increases the heat exchange area and enhances heat exchange efficiency by adding heat-conducting fins to the heat exchange components. This not only improves energy utilization efficiency but also reduces system energy consumption. The waste heat recovery drying chamber provides a good insulation and drying environment, ensuring that the heat exchange components operate in optimal condition, further improving the efficiency of waste heat recovery.

[0017] The drying and insulation components, including mounting side plates and insulation pads, provide a dry and insulated environment for the heat exchange devices, preventing excessive humidity from affecting heat exchange efficiency and thus improving waste heat recovery efficiency. The buffer support base, through a combination of hydraulic dampers and buffer springs, effectively absorbs external vibrations and impacts, ensuring stable system operation under various working conditions and extending equipment lifespan.

[0018] Pipeline anti-clogging vibration cleaning component: A drive motor rotates an eccentric wheel, and the silicone protective pad on the eccentric wheel periodically strikes the L-end plate, generating vibration waves that loosen and dislodge scale buildup inside the pipeline. This design effectively prevents pipeline blockage and ensures the long-term stable operation of the system. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a front view structural diagram of the present utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the buffer support base of this utility model;

[0022] Figure 3 This is a schematic diagram of the disassembly structure of the heat exchange device of this utility model;

[0023] Figure 4 This is a schematic diagram of the disassembly structure of the mounting side plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the connection structure of the eccentric wheel of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] In the diagram: 1. First feed pipe; 2. Second feed pipe; 3. Pump unit; 4. First pipeline; 5. Second pipeline; 6. Waste heat recovery drying box; 7. Buffer support base; 8. Discharge pipe; 9. Feed pipe; 10. Hydraulic damper; 11. Buffer spring; 12. Removable baffle; 13. Heat exchange device; 14. Drive motor; 15. L-end plate; 16. Mounting side plate; 17. Insulation cotton pad; 18. Heat-conducting fins; 19. Eccentric wheel; 20. Silicone protective pad. Detailed Implementation

[0027] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0028] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0029] This embodiment provides, for example Figures 1 to 5 The furfural aldehyde gas ORC waste heat recovery device shown includes a first feed pipe 1 and a second feed pipe 2. A pump unit 3 is located between the first feed pipe 1 and the second feed pipe 2. The pump unit 3 is used to drive the material to flow in the first feed pipe 1, the second feed pipe 2 and subsequent pipelines, ensuring the cyclic operation of the system. It improves the material transfer efficiency and ensures the stability of the internal pressure of the system. The second feed pipe 2 is connected to a heat exchanger 13 via a second pipe 5. A waste heat recovery drying chamber 6 is installed outside the heat exchanger 13. A buffer support base 7 is installed below the waste heat recovery drying chamber 6, providing stable support and cushioning for the waste heat recovery drying chamber 6 and the heat exchanger 13. A drying and heat preservation component is installed on one side of the heat exchanger 13 and inside the waste heat recovery drying chamber 6, providing heat preservation and drying for the heat exchanger 13, thereby improving waste heat recovery efficiency. A pipe anti-clogging vibration cleaning component is installed on one side of the drying and heat preservation component and inside the waste heat recovery drying chamber 6. The pipe anti-clogging vibration cleaning component strikes the heat exchanger 13, causing the dirt in the pipes of the heat exchanger 13 to be vibrated off and discharged. This improves the efficiency and quality of waste heat recovery and reduces waste heat loss. The first feed pipe 1 is connected to the pump group 3 and the second feed pipe 2 via a first pipe 4. The first pipe 4 and the second pipe 5 serve as connectors to connect different components, such as the first feed pipe 1 to the pump unit 3, the pump unit 3 to the second feed pipe 2, and the second feed pipe 2 to the heat exchange device 13. These pipes ensure smooth flow of materials between different components, which helps maintain the normal operation of the system.

[0030] In this embodiment, the waste heat recovery drying box 6 is used to recover and utilize the waste heat generated by the system and to dry the internal components, thereby improving energy utilization efficiency and preventing excessive internal humidity from affecting equipment performance. The discharge pipe 8 and the feed pipe 9 are used to discharge the treated material and introduce new material into the heat exchange device 13, respectively, ensuring the recycling of materials and improving the system's economy and environmental friendliness.

[0031] In this embodiment, a buffer and shock-absorbing assembly is installed on the top surface of the buffer support base 7, and the top buffer end of the buffer and shock-absorbing assembly is connected to the bottom surface of the waste heat recovery drying box 6. The buffer support base 7 provides stable support for the waste heat recovery drying box 6 and the heat exchange device 13, and absorbs vibrations from the outside or during operation, protecting the internal precision components from damage.

[0032] In this embodiment, the buffer and shock absorption assembly includes multiple hydraulic dampers 10 symmetrically installed on the top surface of the buffer support base 7 and buffer springs 11 respectively sleeved around the periphery of each hydraulic damper 10. The top damping end of the hydraulic damper 10 and the top end of the buffer spring 11 are fixedly connected to the bottom surface of the waste heat recovery drying box 6. The hydraulic dampers 10 and the buffer springs 11 form a buffer and shock absorption assembly to reduce the impact and vibration on the waste heat recovery drying box 6, further ensuring the stability and safety of the system.

[0033] In this embodiment, a removable baffle 12 is bolted to one side of the waste heat recovery drying chamber 6, and one end of the heat exchange device 13 has an inlet pipe 9 and an outlet pipe 8. The heat exchange device 13 is responsible for the heat exchange process, improving energy utilization and reducing energy consumption through efficient heat exchange.

[0034] In this embodiment, the feed pipe 9 passes through the waste heat recovery drying box 6 and is connected to the free end of the second pipe 5, and the discharge pipe 8 passes through the detachable baffle 12.

[0035] In this embodiment, both ends of the heat exchange device 13 are clamped and assembled by L-end plates 15 arranged opposite to each other. The L-end plates 15 are bolted to the inner wall of one side of the waste heat recovery drying box 6.

[0036] In this embodiment, the drying and heat preservation assembly includes a mounting side plate 16 fixed to the inner wall of the other side of the waste heat recovery drying chamber 6, and a plurality of heat-conducting fins 18 symmetrically mounted on the upper and lower ends of the side of the mounting side plate 16. The heat-conducting fins 18 increase the heat exchange area, improve the heat exchange efficiency, and promote the effective transfer of heat.

[0037] In this embodiment, an insulation pad 17 is adhered to the middle of the side of the mounting side plate 16. The insulation pad 17 is installed on the mounting side plate 16 to provide heat insulation, reduce heat loss, and improve thermal efficiency.

[0038] In this embodiment, the pipe anti-clogging vibration cleaning assembly includes a drive motor 14 fixed to the inner wall of the waste heat recovery drying box 6 and an eccentric wheel 19 fixed to the output shaft of the drive motor 14. A silicone protective pad 20 is adhered to the outer wall of the eccentric end of the eccentric wheel 19. The eccentric wheel 19 drives the silicone protective pad 20 to strike the outer wall of one of the L-end plates 15, thereby vibrating the pipe in the heat exchange device 13. The drive motor 14 provides power to the pipe anti-clogging vibration cleaning assembly, ensuring that the assembly can effectively remove the scale inside the pipe, keep the pipe unobstructed, and improve the heat exchange efficiency. The eccentric wheel 19 and the silicone protective pad 20 constitute the key parts of the pipe anti-clogging vibration cleaning assembly. The centrifugal force generated by the rotation periodically strikes the pipe, effectively removing deposits on the inner wall of the pipe, preventing blockage, and ensuring the long-term stable operation of the system.

[0039] Working principle:

[0040] This furfural aldehyde gas ORC waste heat recovery device introduces the material to be processed (such as furfural aldehyde gas) into the system from the outside through the first feed pipe 1. The material enters the system through the first feed pipe 1, ready for subsequent processing. After the pump unit 3 starts, it transports the material from the first feed pipe 1 to the second feed pipe 2 through the first pipe 4. The pump unit 3 ensures that the material circulates in the system at a stable pressure and flow rate. The second feed pipe 2 transports the material to the heat exchange device 13. During this process, the material enters the heat exchange device 13 through the second pipe 5. Inside the heat exchange device 13, the material exchanges heat with waste heat. The design of the heat exchange device 13 increases the heat exchange area, and the heat exchange efficiency is improved through the heat-conducting fins 18, ensuring that heat can be quickly transferred to the material.

[0041] The heat exchanger 13 is installed inside the waste heat recovery drying chamber 6. The waste heat recovery drying chamber 6 not only provides a good heat preservation environment, but is also equipped with a drying and heat preservation component, including the mounting side plate 16 and the heat preservation cotton pad 17, to ensure that the inside of the heat exchanger 13 is kept dry and to prevent excessive humidity from affecting the heat exchange efficiency.

[0042] A buffer support base 7 is installed below the waste heat recovery drying chamber 6, providing stable support for the entire device. It absorbs external vibrations and impacts through a hydraulic damper 10 and a buffer spring 11, protecting internal precision components. The discharged material, after heat exchange, is discharged from the system through the discharge pipe 8. The discharge pipe 8 passes through a removable baffle 12 for easy maintenance and cleaning. Fresh material is continuously fed into the system through the feed pipe 9, ensuring continuous system operation.

[0043] To prevent scale buildup in the internal pipes of the heat exchanger 13 due to prolonged use, the system is equipped with a pipe anti-clogging vibration cleaning component. The drive motor 14 drives the eccentric wheel 19 to rotate, and the silicone protective pad 20 on the eccentric wheel 19 periodically strikes the L end plate 15, generating vibration waves that loosen and dislodge the scale inside the pipes, which is then discharged from the system through the discharge pipe 8.

[0044] It should be noted that, in this document, relational terms such as "one" and "two" are used merely 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] 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. A furfural aldehyde gas ORC waste heat recovery device, comprising a first feed pipe (1) and a second feed pipe (2), characterized in that: A pump group (3) is provided between the first material pipe (1) and the second material pipe (2). The second material pipe (2) is connected to a heat exchange device (13) through a second pipe (5). A waste heat recovery drying box (6) is installed on the outside of the heat exchange device (13). A buffer support base (7) is provided below the waste heat recovery drying box (6). A drying and heat preservation component is provided on one side of the heat exchange device (13) and in the inner cavity of the waste heat recovery drying box (6). The drying and heat preservation component can provide heat preservation and drying for the heat exchange device (13), thereby improving the waste heat recovery efficiency. A pipe anti-blocking vibration cleaning component is provided on one side of the drying and heat preservation component and in the inner wall of the waste heat recovery drying box (6). The pipe anti-blocking vibration cleaning component strikes the heat exchange device (13) with force, causing the dirt in the pipe of the heat exchange device (13) to be vibrated off and discharged, thereby improving the efficiency and quality of waste heat recovery and reducing waste heat loss.

2. The furfural aldehyde gas ORC waste heat recovery device according to claim 1, characterized in that: The top surface of the buffer support base (7) is equipped with a buffer shock absorption component, and the top buffer end of the buffer shock absorption component is connected to the bottom surface of the waste heat recovery drying box (6).

3. The furfural aldehyde gas ORC waste heat recovery device according to claim 2, characterized in that: The buffer and shock absorption assembly includes multiple hydraulic dampers (10) symmetrically installed on the top surface of the buffer support base (7) and buffer springs (11) respectively sleeved on the periphery of each hydraulic damper (10).

4. The furfural aldehyde gas ORC waste heat recovery device according to claim 3, characterized in that: The top damping end of the hydraulic damper (10) and the top of the buffer spring (11) are both fixedly connected to the bottom surface of the waste heat recovery drying box (6).

5. The furfural aldehyde gas ORC waste heat recovery device according to claim 4, characterized in that: A removable baffle (12) is bolted to one side of the waste heat recovery drying box (6), and one end of the heat exchange device (13) has a feed pipe (9) and a discharge pipe (8).

6. The furfural aldehyde gas ORC waste heat recovery device according to claim 5, characterized in that: The feed pipe (9) passes through the waste heat recovery drying box (6) and is connected to the free end of the second pipe (5), and the discharge pipe (8) passes through the detachable baffle (12).

7. A furfural aldehyde gas ORC waste heat recovery device according to claim 6, characterized in that: Both ends of the heat exchange device (13) are clamped and assembled by L-end plates (15) arranged opposite to each other. The L-end plates (15) are bolted to the inner wall of one side of the waste heat recovery drying box (6).

8. The furfural aldehyde gas ORC waste heat recovery device according to claim 7, characterized in that: The drying and heat preservation assembly includes an installation side plate (16) fixed to the inner wall of the other side of the waste heat recovery drying box (6) and multiple heat-conducting fins (18) symmetrically installed on the upper and lower ends of the side of the installation side plate (16).

9. A furfural aldehyde gas ORC waste heat recovery device according to claim 8, characterized in that: A thermal insulation pad (17) is glued to the middle of the side of the mounting side plate (16).

10. A furfural aldehyde gas ORC waste heat recovery device according to claim 8, characterized in that: The pipeline anti-blocking vibration cleaning assembly includes a drive motor (14) fixed to the inner wall of the waste heat recovery drying box (6) and an eccentric wheel (19) fixed to the output shaft of the drive motor (14). The outer wall of the eccentric end of the eccentric wheel (19) is bonded with a silicone protective pad (20).

Citation Information

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