Heat energy recovery device

Abstract

The utility model provides a heat energy recovery device. According to the heat energy recovery device, efficient heat exchange is achieved through a first aluminum plate set and a second aluminum plate set which are stacked in a staggered mode. The first aluminum plate group and the second aluminum plate group are respectively provided with a first gas channel and a second gas channel, waste gas flows through the first channel, normal-temperature gas flows through the second channel, and due to the fact that the two aluminum plates are arranged in a staggered mode, gas flows in the channels respectively, heat transfer is conducted through the aluminum plates which are in close contact with each other, and heat transfer efficiency is improved. The contact area of the gas and the aluminum plate is enlarged through the staggered structure, the conduction efficiency is further improved through the excellent heat conduction performance of the aluminum plate, the normal-temperature gas effectively absorbs waste heat of waste gas, efficient heat exchange is achieved, and energy waste is reduced.

Description

Technical Field

[0001] The present application relates to the field of energy recovery, and in particular to a heat energy recovery device. Background Art

[0002] Traditional heat recovery devices are widely used in industrial waste gas treatment, especially during high-temperature exhaust gas discharge. By recovering the heat from the exhaust gas for energy reuse, they achieve energy conservation and environmental protection. These devices typically transfer the heat from the high-temperature exhaust gas to cold air or a cooling medium through a heat exchanger to achieve energy conversion. While these devices have achieved some success in energy conservation, when treating exhaust gas containing toxic components, traditional heat recovery devices often face problems such as corrosive gas damage and high maintenance costs.

[0003] Existing technologies have proposed various solutions for recovering heat energy from exhaust gas, including the use of heat pipe heat exchangers and air preheaters. These technologies utilize heat exchange between a cooling medium and high-temperature exhaust gas to recover heat from the exhaust gas for other industrial uses, such as preheating fuel and heating. However, these solutions are mostly used for conventional exhaust gas treatment. When applied to heat energy recovery from toxic gases, they often lack effective gas isolation and filtration measures, focusing primarily on heat energy utilization while ignoring the safety and equipment protection issues caused by toxic gases.

[0004] Existing heat recovery devices have the following major problems when processing toxic gases and converting heat energy: First, such devices cannot effectively isolate toxic gases from normal-temperature gases, resulting in the possibility of toxic gases mixing into the treated normal-temperature gases, affecting safety. Second, the existing technology has deficiencies in sealing performance. After long-term operation, the equipment is prone to air leakage or reduced airtightness, resulting in exhaust gas leakage, further affecting the conversion efficiency of gas heat energy. In addition, due to poor airtightness, the heat energy transfer process is easily obstructed, resulting in reduced heat recovery efficiency and the inability to effectively utilize the energy in the exhaust gas. Therefore, there is an urgent need for an efficient and simple heat recovery device to meet the above needs. Utility Model Content

[0005] In view of this, it is necessary to provide an efficient and simple heat energy recovery device to solve the above problems.

[0006] An embodiment of the present application provides a heat recovery device, comprising:

[0007] The shell defines an inner cavity;

[0008] a heat exchange device disposed in the inner cavity, the heat exchange device comprising a first aluminum plate group and a second aluminum plate group, the first aluminum plate group defining a first gas channel, the second aluminum plate group defining a second gas channel, the first aluminum plate group and the second aluminum plate group both being formed by a plurality of aluminum plates arranged in a vertical direction, the first aluminum plate group and the second aluminum plate group being staggered and stacked to form the heat exchange device;

[0009] During operation, hot exhaust gas is connected to the first gas channel and introduced into the heat exchange device, and gas at normal temperature is connected to the second gas channel and absorbs the heat.

[0010] In at least one embodiment of the present application, the aluminum plates are all provided with gas channels, the gas channels located in the first aluminum plate group are arranged in a vertical direction to form the first gas channels, and the gas channels of the aluminum plates located in the second aluminum plate group are arranged in a vertical direction to form the second gas channels.

[0011] In at least one embodiment of the present application, a partition plate is provided in the outer shell, and the partition plate is interference fit with the inner wall of the outer shell, one end of the partition plate is fixedly connected to the inner wall of the outer shell, and the other end is fixedly connected to the heat exchange structure, and the partition plate and the heat exchange structure divide the inner cavity into a first cavity, a second cavity, a third cavity and a fourth cavity.

[0012] In at least one embodiment of the present application, both end surfaces of the heat exchange device in the vertical direction are interference fit with the inner wall of the outer shell, and one end of the heat exchange device abuts the inner wall of the outer shell and is fixedly connected to part of the partition plates, dividing the inner cavity of the outer shell into the first cavity and the third cavity, and the remaining partition plates are fixedly connected to the other end of the heat exchange device, dividing the inner cavity of the outer shell into the second cavity and the fourth cavity.

[0013] In at least one embodiment of the present application, the first channel connects the first cavity and the third cavity, and the second channel connects the second cavity and the fourth cavity.

[0014] In at least one embodiment of the present application, a first ventilation hole, a second ventilation hole, a third ventilation hole and a fourth ventilation hole are provided on the shell, the first ventilation hole is connected to the first cavity, the second ventilation hole is connected to the second cavity, the third ventilation hole is connected to the third cavity, and the fourth ventilation hole is connected to the fourth cavity.

[0015] In at least one embodiment of the present application, a first ventilation pipe, a second ventilation pipe, a third ventilation pipe and a fourth ventilation pipe are provided in the third ventilation hole and the fourth ventilation hole, the first ventilation pipe is connected to the hot exhaust gas, the second ventilation pipe is connected to the normal temperature gas, and a fan structure is provided in the third ventilation pipe and the fourth ventilation pipe.

[0016] In at least one embodiment of the present application, a first ventilation pipe, a second ventilation pipe, a third ventilation pipe and a fourth ventilation pipe are provided in the third ventilation hole and the fourth ventilation hole, the first ventilation pipe is connected to the hot exhaust gas, the second ventilation pipe is connected to the normal temperature gas, and a fan structure is provided in the third ventilation pipe and the fourth ventilation pipe.

[0017] In at least one embodiment of the present application, an activated carbon film is provided at the air outlet of the heat conduction fan.

[0018] In at least one embodiment of the present application, the housing is made of stainless steel.

[0019] The heat energy recovery device provided above realizes a high-efficiency heat exchange design by staggered stacking of the first aluminum plate group and the second aluminum plate group to form a heat exchange device. The first aluminum plate group and the second aluminum plate group are respectively provided with a first gas channel and a second gas channel. The exhaust gas flows through the first gas channel and the normal temperature gas flows through the second gas channel. Since the two groups of aluminum plates are staggered, the exhaust gas and the normal temperature gas pass through their respective channels while the airflow can transfer heat between the aluminum plates in close contact. The staggered structure expands the contact area, and the excellent thermal conductivity of the aluminum plate material further enhances the heat conduction efficiency, so that the normal temperature gas effectively absorbs the waste heat of the exhaust gas, thereby achieving the effect of high-efficiency heat exchange and reducing energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a heat recovery device;

[0021] Figure 2 This is the structural diagram of the shell;

[0022] Figure 3 This is the structural diagram of the fan;

[0023] Figure 4 is a structural diagram of a heat exchange device;

[0024] Figure 5 It is a bottom view of the heat exchange device.

[0025] Description of main component symbols

[0026] 2. Outer shell; 3. Heat exchange device; 4. First aluminum plate group; 5. Second aluminum plate group; 6. First gas channel; 7. Second gas channel; 9. Partition plate; 10. First cavity; 11. Second cavity; 12. Third cavity; 13. Fourth cavity; 16. First air vent; 17. Second air vent; 18. Third air vent; 19. Fourth air vent; 20. First ventilation pipe; 21. Second ventilation pipe; 22. Third ventilation pipe; 23. Fourth ventilation pipe; 24. Fan structure; 25. Thermal diversion fan; 26. Normal temperature diversion fan; 27. Activated carbon membrane; 100. A heat energy recovery device. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0028] It should be noted that when a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0029] An embodiment of the present application provides a heat recovery device, comprising:

[0030] The shell defines an inner cavity;

[0031] a heat exchange device disposed in the inner cavity, the heat exchange device comprising a first aluminum plate group and a second aluminum plate group, the first aluminum plate group defining a first gas channel, the second aluminum plate group defining a second gas channel, the first aluminum plate group and the second aluminum plate group both being formed by a plurality of aluminum plates arranged in a vertical direction, the first aluminum plate group and the second aluminum plate group being staggered and stacked to form the heat exchange device;

[0032] During operation, hot exhaust gas is connected to the first gas channel and introduced into the heat exchange device, and gas at normal temperature is connected to the second gas channel and absorbs the heat.

[0033] The heat energy recovery device provided above realizes a high-efficiency heat exchange design by staggered stacking of the first aluminum plate group and the second aluminum plate group to form a heat exchange device. The first aluminum plate group and the second aluminum plate group are respectively provided with a first gas channel and a second gas channel. The exhaust gas flows through the first gas channel and the normal temperature gas flows through the second gas channel. Since the two groups of aluminum plates are staggered, the exhaust gas and the normal temperature gas pass through their respective channels while the airflow can transfer heat between the aluminum plates in close contact. The staggered structure expands the contact area, and the excellent thermal conductivity of the aluminum plate material further enhances the heat conduction efficiency, so that the normal temperature gas effectively absorbs the waste heat of the exhaust gas, thereby achieving the effect of high-efficiency heat exchange and reducing energy waste.

[0034] The following is combined with Figure 1-5 , some embodiments of the present application are described in detail. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0035] An embodiment of the present application provides a heat recovery device 100, comprising:

[0036] The outer shell 2 is provided with an inner cavity;

[0037] A heat exchange device 3 is disposed in the inner cavity, comprising a first aluminum plate group 4 and a second aluminum plate group 5. The first aluminum plate group 4 defines a first gas channel 6, and the second aluminum plate group 5 defines a second gas channel 7. The first aluminum plate group 4 and the second aluminum plate group 5 are each formed by a plurality of aluminum plates arranged in a vertical direction. The first aluminum plate group 4 and the second aluminum plate group 5 are staggered and stacked to form the heat exchange device 3.

[0038] During operation, hot exhaust gas is connected to the first gas channel 6 and introduced into the heat exchange device 3, and gas at normal temperature is connected to the second gas channel 7 and absorbs the heat.

[0039] Specifically, the heat energy recovery device includes a shell 2 and a heat exchange device 3 provided in its inner cavity. The heat exchange device 3 includes a first aluminum plate group 4 and a second aluminum plate group 5. The first aluminum plate group 4 is provided with a first gas channel 6, and the second aluminum plate group 5 is provided with a second gas channel 7. The two groups of aluminum plates are arranged in a vertical direction and staggered to form a heat exchange device 3. The operation process of the device is that the hot exhaust gas enters the device through the first gas channel 6, and the room temperature gas passes through the second gas channel 7 and absorbs heat. The whole process is completed by the heat exchange device 3. The application scenarios include industrial production with high-temperature exhaust gas emissions, such as power plants, metallurgical plants, etc. that need to process a large amount of high-temperature exhaust gas. The function of the feature is to maximize the heat exchange efficiency through the staggered structure of the vertically arranged aluminum plates. The beneficial effect is that it can effectively improve the heat recovery efficiency, save energy, and reduce exhaust gas emissions. At the same time, its structure is compact and suitable for space constraints in industrial environments. The connection relationship between the features is staggered to form a larger contact area, which makes the heat exchange more sufficient, effectively avoids the phenomenon of gas mixing, and ensures the isolation and safety of the gas.

[0040] In a specific embodiment, the aluminum plates are all provided with gas channels. The gas channels located in the first aluminum plate group 4 are arranged in a vertical direction to form the first gas channels 6 , and the gas channels located in the second aluminum plate group 5 are arranged in a vertical direction to form the second gas channels 7 .

[0041] Specifically, the gas channels of the first aluminum plate group 4 are arranged in the vertical direction to form a first gas channel 6, and the gas channels of the second aluminum plate group 5 are also arranged in the vertical direction to form a second gas channel 7. The purpose of this design is to further refine the gas flow channels and ensure that the exhaust gas and normal temperature gas flow in different channels, which is beneficial to improving the gas flow stability and heat exchange efficiency. The beneficial effect is to achieve efficient heat energy transfer and improve the heat absorption efficiency of the entire device. The derivation of the characteristic connection relationship and position relationship shows that the channel layout along the vertical direction not only enhances the structural strength of the device, but also reduces the risk of gas mixing caused by the horizontal arrangement, making exhaust gas treatment safer.

[0042] In a specific embodiment, a partition plate 9 is provided in the outer shell 2, and the partition plate 9 is interference fit with the inner wall of the outer shell 2, one end of the partition plate 9 is fixedly connected to the inner wall of the outer shell 2, and the other end is fixedly connected to the heat exchange structure, and the partition plate 9 and the heat exchange structure divide the inner cavity into a first cavity 10, a second cavity 11, a third cavity 12 and a fourth cavity 13.

[0043] Specifically, a partition plate 9 is provided in the outer shell 2 and is interference fit with the inner wall of the outer shell 2. The partition plate 9 divides the inner cavity into multiple cavities. The function of this structure is to isolate different parts of the heat exchange device 3 to form independent airflow paths, ensuring that hot exhaust gas and normal temperature gas will not mix in the channel. The beneficial effect is to enhance the air tightness of the device, prevent exhaust gas leakage, and improve safety. The characteristic connection relationship is that the partition plate 9 is fixedly connected to the outer shell 2 and the heat exchange device 3, and divides the internal space of the device into multiple functional cavities, avoiding cross-contamination of exhaust gas and normal temperature gas, and ensuring that the gas in each cavity can independently perform heat exchange, thereby improving the overall heat energy recovery efficiency.

[0044] In a specific embodiment, both end faces of the heat exchange device 3 in the vertical direction are interference fit with the inner wall of the outer shell 2, and one end of the heat exchange device 3 abuts the inner wall of the outer shell 2 and is fixedly connected to part of the partition plate 9, dividing the inner cavity of the outer shell 2 into the first cavity 10 and the third cavity 12, and the remaining partition plates 9 are fixedly connected to the other end of the heat exchange device 3, dividing the inner cavity of the outer shell 2 into the second cavity 11 and the fourth cavity 13.

[0045] Specifically, the heat exchange device 3 is designed to have an interference fit between the two end faces in the vertical direction and the inner wall of the shell 2, and the inner cavity is further divided into multiple cavities. Its function is to ensure the stability and sealing of the device through interference fit. The beneficial effect is to prevent the exhaust gas and normal temperature gas from crossing between the cavities, improve the airtightness, and maintain the stability of the long-term operation of the device. The characteristic connection relationship is that the interference fit strengthens the close contact between the heat exchange device 3 and the shell 2, reduces the possibility of air leakage, and makes the isolation between the cavities more thorough. It is deduced that this design helps to maintain a stable gas flow path and ensure the continuous and efficient operation of the exhaust gas treatment.

[0046] In a specific embodiment, the first channel connects the first cavity 10 and the third cavity 12 , and the second channel connects the second cavity 11 and the fourth cavity 13 .

[0047] Specifically, the first gas channel 6 connects the first cavity 10 and the third cavity 12, and the second gas channel 7 connects the second cavity 11 and the fourth cavity 13. Its function is to further optimize the airflow path and ensure that the exhaust gas and the normal temperature gas flow independently in different cavities. The beneficial effect is to improve the separation of gas flow and avoid the safety hazards of gas mixing. The derivation of the characteristic connection relationship shows that the two gas channels are respectively connected to different cavities, which further enhances the gas isolation effect and makes the heat energy exchange more efficient and safe.

[0048] In a specific embodiment, a first air vent 16, a second air vent 17, a third air vent 18 and a fourth air vent 19 are provided on the shell 2. The first air vent 16 is connected to the first cavity 10, the second air vent 17 is connected to the second cavity 11, the third air vent 18 is connected to the third cavity 12, and the fourth air vent 19 is connected to the fourth cavity 13.

[0049] Specifically, the outer shell 2 is provided with a plurality of vents, which are respectively connected to each cavity. The function is to provide a channel for gas to enter and exit the device and ensure smooth gas flow. The beneficial effect is that by setting up multiple vents, it is ensured that the gas in each cavity can enter and exit efficiently, thereby improving the efficiency of gas flow and heat energy recovery effect. The derivation of the characteristic connection relationship shows that the vents are connected to each cavity, so that the exhaust gas and normal temperature gas can respectively enter the corresponding cavity, ensuring that the gas flow path is clear and will not interfere with each other.

[0050] In a specific embodiment, a first ventilation pipe 20, a second ventilation pipe 21, a third ventilation pipe 22 and a fourth ventilation pipe 23 are provided in the third ventilation hole 18 and the fourth ventilation hole 19. The first ventilation pipe 20 is connected to the hot exhaust gas, the second ventilation pipe 21 is connected to the normal temperature gas, and a fan structure 24 is provided in the third ventilation pipe 22 and the fourth ventilation pipe 23.

[0051] Specifically, a ventilation pipe and a fan structure 24 are provided in the ventilation hole, and their function is to further control the gas flow speed and direction. The beneficial effect is that by setting the fan structure 24, the flow path and speed of the exhaust gas and the normal temperature gas can be accurately controlled, thereby improving the heat exchange efficiency. The derivation of the characteristic connection relationship shows that the ventilation pipe and the fan structure 24 effectively guide the gas flow, ensure the smooth flow of the gas in each cavity, and achieve efficient heat energy transfer without mixing the gases.

[0052] In a specific embodiment, the fan structure 24 includes a thermal diversion fan 25 and a normal temperature diversion fan 26. The thermal diversion fan 25 drives the hot exhaust gas to flow from the first chamber to the third chamber, and the normal temperature diversion fan 26 drives the normal temperature gas to flow from the second chamber to the fourth chamber.

[0053] Specifically, the fan structure 24 is divided into a heat conduction fan 25 and a normal temperature conduction fan 26, which respectively drive the exhaust gas and normal temperature gas to flow in different chambers. The beneficial effect is to improve the directionality and stability of the gas flow, ensuring that the heat can be fully absorbed and transferred. The derivation of the characteristic connection relationship shows that the two fans act on the exhaust gas and normal temperature gas respectively, which can accurately control the gas flow, avoid the gas from losing heat in the cross flow, and improve the heat energy recovery efficiency of the entire device.

[0054] In a specific embodiment, an activated carbon film 27 is provided at the air outlet of the heat conduction fan 25 .

[0055] Specifically, an activated carbon membrane 27 is provided at the air outlet of the heat conduction fan 25, which is used to filter harmful components in the exhaust gas to ensure that the gas treated by the device is more environmentally friendly. The beneficial effect is that it reduces the emission of harmful substances in the exhaust gas and enhances the environmental friendliness of the exhaust gas treatment. The derivation of the characteristic connection relationship shows that the setting of the activated carbon membrane 27 further improves the safety of the exhaust gas treatment, making the heat recovery device not only energy-saving, but also capable of treating toxic exhaust gas, thereby enhancing the breadth of its application scenarios.

[0056] In a specific embodiment, the housing 2 is made of stainless steel.

[0057] Specifically, the outer shell 2 is made of stainless steel, which is used to enhance the corrosion resistance of the device. The beneficial effect is that it improves the durability of the device when treating corrosive exhaust gas and reduces the equipment maintenance cost. The derivation of the characteristic connection relationship shows that the stainless steel outer shell 2 can be used for a long time in harsh industrial environments, extending the service life of the device and improving its economic benefits.

[0058] The above is only an implementation method of the present application. It should be pointed out that for ordinary technicians in this field, improvements can be made without departing from the creative concept of the present application, but these all fall within the scope of protection of the present application.

Claims

1. A heat recovery device, characterized in that: include: The shell defines an inner cavity; a heat exchange device disposed in the inner cavity, the heat exchange device comprising a first aluminum plate group and a second aluminum plate group, the first aluminum plate group defining a first gas channel, the second aluminum plate group defining a second gas channel, the first aluminum plate group and the second aluminum plate group both being formed by a plurality of aluminum plates arranged in a vertical direction, the first aluminum plate group and the second aluminum plate group being staggered and stacked to form the heat exchange device; During operation, hot exhaust gas is connected to the first gas channel and introduced into the heat exchange device, and gas at normal temperature is connected to the second gas channel and absorbs the heat.

2. The heat recovery device according to claim 1, characterized in that: The aluminum plates are all provided with gas channels. The gas channels in the first aluminum plate group are arranged in a vertical direction to form the first gas channels, and the gas channels in the aluminum plates in the second aluminum plate group are arranged in a vertical direction to form the second gas channels.

3. The heat recovery device according to claim 1, characterized in that: A partition plate is provided in the shell, and the partition plate is interference fit with the inner wall of the shell. One end of the partition plate is fixedly connected to the inner wall of the shell, and the other end is fixedly connected to the heat exchange structure. The partition plate and the heat exchange structure divide the inner cavity into a first cavity, a second cavity, a third cavity and a fourth cavity.

4. The heat recovery device according to claim 3, characterized in that: Both end surfaces of the heat exchange device in the vertical direction are interference fit with the inner wall of the outer shell, and one end of the heat exchange device abuts the inner wall of the outer shell and is fixedly connected to part of the partition plates, dividing the inner cavity of the outer shell into the first cavity and the third cavity, and the remaining partition plates are fixedly connected to the other end of the heat exchange device, dividing the inner cavity of the outer shell into the second cavity and the fourth cavity.

5. The heat recovery device according to claim 3, characterized in that: The first gas channel is connected to the first cavity and the third cavity, and the second gas channel is connected to the second cavity and the fourth cavity.

6. The heat recovery device according to claim 3, characterized in that: The shell is provided with a first vent hole, a second vent hole, a third vent hole and a fourth vent hole. The first vent hole is connected to the first cavity, the second vent hole is connected to the second cavity, the third vent hole is connected to the third cavity, and the fourth vent hole is connected to the fourth cavity.

7. The heat recovery device according to claim 6, characterized in that: The third vent hole and the fourth vent hole are provided with a first vent pipe, a second vent pipe, a third vent pipe and a fourth vent pipe, the first vent pipe is connected to the hot exhaust gas, the second vent pipe is connected to the normal temperature gas, and the third vent pipe and the fourth vent pipe are both provided with a fan structure.

8. The heat recovery device according to claim 7, characterized in that: The fan structure includes a heat conduction fan and a normal temperature conduction fan. The heat conduction fan drives the hot exhaust gas to flow from the first chamber to the third chamber, and the normal temperature conduction fan drives the normal temperature gas to flow from the second chamber to the fourth chamber.

9. The heat recovery device according to claim 1, characterized in that: An activated carbon film is provided at the air outlet of the heat conduction fan.

10. The heat recovery device according to claim 1, characterized in that: The housing is made of stainless steel.

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