Waste heat recycling device

Abstract

The utility model discloses a waste heat recycling device, and relates to the technical field of waste heat recovery, the waste heat recycling device comprises a flue gas pipe and a waste heat recovery mechanism, a gas inlet pipe is arranged above the flue gas pipe, through the arrangement of an adjusting assembly, during use, the flow of flue gas and air is automatically adjusted through real-time data and preset parameters, the optimal operation state is achieved, and the waste heat recovery efficiency is improved. The heat recovery efficiency can be maximized, human intervention and operation errors are reduced, it is ensured that waste heat in smoke is fully utilized, and therefore energy waste is reduced, through arrangement of the waste heat recovery mechanism, heat in the smoke can be conducted into air in the air inlet pipe in the using process, air to be introduced into a boiler is preheated, and the heat recovery efficiency of the boiler is improved. By preheating the air entering the boiler, the requirement of the boiler for fuel can be reduced, the combustion amount of the fuel is reduced, the overall energy efficiency is improved, the consumption of extra energy is reduced, the energy cost can be reduced, and meanwhile, the environmental pollution can be reduced and the air quality can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, and in particular to a waste heat recovery and reuse device. Background Art

[0002] A waste heat recovery and reuse device is an efficient, energy-saving and environmentally friendly system designed to capture waste heat generated during industrial processes, power plants or mechanical equipment operation and convert it into usable energy. The device usually includes a heat exchanger, a fluid circulation system and a control system. The heat exchanger is responsible for absorbing heat from the heat source and transferring it to other process flows or power generation systems through the working medium. The circulation system ensures that the working medium continues to flow in a closed loop to achieve continuous heat energy transfer. The control system monitors and adjusts the entire recovery process to optimize the utilization efficiency of thermal energy. This device not only helps to reduce energy consumption and operating costs, but also has positive significance for reducing environmental temperature pollution and mitigating global warming.

[0003] After searching, the patent number "CN219474388U" mentioned in the text that "the utility model discloses a waste heat recovery and reuse device, including a bottom plate, a collection box is fixedly installed on the right side of the top of the bottom plate, guide plates are fixedly installed on both sides of the inner cavity of the collection box, a fixing groove is opened on the top of the inner side of the guide plate, a connecting plate is fixedly installed on the inner side of the fixing groove, and a filter is fixedly installed on the inner side of the connecting plate. This waste heat recovery and reuse device facilitates the storage of collected heat through the setting of the collection box, and the operation of the fan can effectively remove the heat in the working box. The heat generated inside the working box is transferred to the inside of the collection box. The setting of the fixing groove is convenient for users to install and fix the connecting plate and the filter. The setting of the filter can effectively filter the impurities mixed in the inhaled hot air. The setting of the guide plate is convenient for guiding the heat, and at the same time, the stability and practicality of the device during use can be effectively improved. When in use, the heat generated inside the working box can be effectively transferred to the inside of the collection box through the operation of the fan. However, the device cannot process the collected heat in time, and long-term storage increases the cost of use.

[0004] To this end, we provide a waste heat recovery and reuse device to solve the above problems. Utility Model Content

[0005] The present application provides a waste heat recovery and reuse device, which solves the problem of recovering boiler waste heat.

[0006] The present application provides a waste heat recovery and reuse device, comprising a flue gas pipe and a waste heat recovery mechanism, wherein an air intake pipe is arranged above the flue gas pipe, and a waste heat recovery mechanism is arranged outside the flue gas pipe;

[0007] The waste heat recovery mechanism includes a bracket assembly arranged outside the flue gas pipe and the air intake pipe, a heat conduction assembly is installed inside the bracket assembly, a heat insulation assembly is arranged outside the heat conduction assembly, and a fastening assembly penetrates the surface of the bracket assembly.

[0008] Preferably, the bracket assembly includes a first bracket arranged outside the smoke pipe and the air inlet pipe, and a second bracket is arranged on one side of the first bracket.

[0009] Preferably, the heat-conducting assembly comprises a heat-conducting plate arranged between the first bracket and the second bracket, and thermal grease is applied between the heat-conducting plates.

[0010] Preferably, the thermal insulation assembly comprises a thermal insulation shell installed on the outside of the heat conducting plate, and the inside of the thermal insulation shell is filled with aerogel.

[0011] Preferably, the fastening assembly comprises a fixing rod penetrating the surface of the first bracket, a gasket is sleeved on the outer side of the fixing rod, and a nut set is threadedly connected to one end of the fixing rod.

[0012] Preferably, the outer walls of the smoke pipe and the air inlet pipe are provided with a heat-insulating component, and the heat-insulating component comprises heat-insulating cotton arranged on the outer walls of the smoke pipe and the air inlet pipe, and a fixing ring is sleeved on the outer side of the heat-insulating cotton.

[0013] Preferably, an adjusting assembly is provided at one end of the smoke pipe and the air inlet pipe, and the adjusting assembly comprises an adjusting valve installed at one end of the smoke pipe and the air inlet pipe, and a detector is provided at one side of the adjusting valve.

[0014] It can be seen from the above technical scheme that the present application provides a waste heat recovery and reuse device. When in use, the device is first installed on the smoke exhaust port and air inlet of the boiler. When the smoke from the combustion of the boiler enters the device through the smoke pipe, the heat of the smoke enters the air in the air inlet pipe through the heat conduction plate, and heats the air that is about to enter the boiler. At the same time, the heat insulation component and the thermal insulation component prevent heat loss during the conduction process, and the adjustment component accurately controls the ratio of smoke and air to complete the recovery of the boiler waste heat.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. By adjusting the settings of the components, the flow of flue gas and air can be automatically adjusted through real-time data and preset parameters to achieve the most optimized operating state, which can maximize the heat recovery efficiency, reduce human intervention and operating errors, ensure that the waste heat in the flue gas is fully utilized, and thus reduce energy waste;

[0017] 2. Through the setting of the waste heat recovery mechanism, when in use, the heat in the flue gas can be transferred to the air in the intake pipe to preheat the air to be introduced into the boiler. By preheating the air entering the boiler, the boiler's demand for fuel can be reduced, the amount of fuel burned can be reduced, the overall energy efficiency can be improved, the consumption of additional energy can be reduced, and energy costs can be reduced. At the same time, it also helps to reduce environmental pollution and improve air quality.

[0018] In summary, the present application can recover excess heat from the flue gas discharged by the boiler and use it to preheat the air, thereby reducing the amount of fuel burned and improving the overall energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the implementation cases. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a schematic diagram of the overall appearance structure proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the overall side view structure proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the explosion structure of the heat conduction component proposed by the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the heat conduction component and the heat insulation component proposed by the utility model;

[0024] Figure 5 This is a schematic diagram of the fastening assembly structure proposed by the utility model.

[0025] In the figure: 1. flue gas pipe; 11. air intake pipe; 2. waste heat recovery mechanism; 21. bracket assembly; 211. first bracket; 212. second bracket; 22. heat conduction assembly; 221. heat conduction plate; 222. thermal grease; 23. thermal insulation assembly; 231. thermal insulation shell; 232. aerogel; 24. fastening assembly; 241. fixing rod; 242. gasket; 243. nut set; 3. thermal insulation assembly; 31. thermal insulation cotton; 32. fixing ring; 4. adjustment assembly; 41. regulating valve; 42. detector. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0027] See also Figure 1-5, a waste heat recovery and reuse device, comprising a flue gas pipe 1 and a waste heat recovery mechanism 2, specifically, an air intake pipe 11 is arranged above the flue gas pipe 1, and a waste heat recovery mechanism 2 is arranged outside the flue gas pipe 1;

[0028] The waste heat recovery mechanism 2 includes a bracket assembly 21 arranged on the outside of the flue pipe 1 and the intake pipe 11, which is used to fix other components so that the device is stably connected to the outside of the pipe for operation. A heat-conducting assembly 22 is installed on the inner side of the bracket assembly 21. The heat-conducting assembly 22 is used to transfer the heat of the flue gas inside the flue pipe 1 to the air in the intake pipe 11 to preheat the air. A heat-insulating assembly 23 is arranged on the outer side of the heat-conducting assembly 22. The heat-insulating assembly 23 can prevent the heat conducted to the heat-conducting assembly 22 from being lost, and prevent the recovered waste heat from being lost. A fastening assembly 24 runs through the surface of the bracket assembly 21, which is used to fix the remaining components of the waste heat recovery mechanism 2 to prevent the device from dispersing during long-term use, thereby affecting the heat recovery effect.

[0029] In the utility model, the bracket assembly 21 includes a first bracket 211 arranged on the outside of the smoke pipe 1 and the air intake pipe 11, and a second bracket 212 is arranged on one side of the first bracket 211. The bracket assembly 21 is the skeleton of the entire waste heat recovery and reuse device, which can firmly fix the device in a predetermined position to ensure the stability and safety of the device.

[0030] In the utility model, the heat-conducting component 22 includes a heat-conducting plate 221 arranged between the first bracket 211 and the second bracket 212, which has good thermal conductivity and can transfer the heat of the flue gas to the air in the intake pipe 11 to preheat the air that will enter the boiler. Thermal grease 222 is applied between the heat-conducting plates 221. The thermal grease 222 has excellent thermal conductivity and can fill the tiny gaps between the heat-conducting plates 221 to reduce the contact thermal resistance, thereby improving the overall heat transfer efficiency.

[0031] In the present invention, the heat insulation component 23 includes a heat insulation shell 231 installed on the outside of the heat conduction plate 221, and the inner side of the heat insulation shell 231 is filled with aerogel 232. The aerogel 232 is filled between the heat insulation shell 231 and the heat conduction component 22 to slow down the loss of heat.

[0032] In the utility model, the fastening assembly 24 includes a fixing rod 241 that passes through the surface of the first bracket 211, a gasket 242 is sleeved on the outer side of the fixing rod 241, and a nut group 243 is threadedly connected to one end of the fixing rod 241. The fastening assembly 24 can firmly connect various components and brackets in the device to ensure the stability and reliability of the entire device.

[0033] In some embodiments, the outer walls of the smoke pipe 1 and the air intake pipe 11 are provided with an insulation component 3, and the insulation component 3 includes insulation cotton 31 arranged on the outer walls of the smoke pipe 1 and the air intake pipe 11, and a fixing ring 32 is sleeved on the outer side of the insulation cotton 31. The insulation component 3 can prevent the heat of the smoke and air from dissipating and affecting the preheating effect of the air.

[0034] In some embodiments, an adjusting component 4 is provided at one end of the flue pipe 1 and the air intake pipe 11. The adjusting component 4 includes a regulating valve 41 installed at one end of the flue pipe 1 and the air intake pipe 11. A detector 42 is provided on one side of the regulating valve 41. The adjusting component 4 can adjust the amount of flue gas and air entering the device. By precisely controlling the ratio of flue gas to air, the heat recovery efficiency can be maximized to ensure that the waste heat in the flue gas is fully utilized, thereby reducing energy waste.

[0035] It can be seen from the above technical solution that when in use, the device is first installed on the smoke exhaust port and air inlet of the boiler. When the smoke from the combustion of the boiler enters the device through the smoke pipe 1, the heat of the smoke enters the air of the air inlet pipe 11 through the heat conduction plate 221, and heats the air that will enter the boiler. At the same time, the insulation component 23 and the heat preservation component 3 prevent heat loss during conduction, and the adjustment component 4 accurately controls the ratio of smoke and air to complete the recovery of boiler waste heat.

[0036] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope of the present application is indicated by the claims.

[0037] It should be understood that the present application is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The above-described embodiments of the present application do not constitute a limitation on the scope of protection of the present application.

Claims

1. A waste heat recovery and reuse device, comprising a flue gas pipe (1) and a waste heat recovery mechanism (2), characterized in that: An air inlet pipe (11) is arranged above the flue gas pipe (1), and a waste heat recovery mechanism (2) is arranged outside the flue gas pipe (1); The waste heat recovery mechanism (2) comprises a support assembly (21) arranged on the outside of the flue gas pipe (1) and the air intake pipe (11), a heat conduction assembly (22) is installed on the inside of the support assembly (21), a heat insulation assembly (23) is arranged on the outside of the heat conduction assembly (22), and a fastening assembly (24) penetrates the surface of the support assembly (21).

2. The waste heat recovery and reuse device according to claim 1, characterized in that: The support assembly (21) comprises a first support (211) arranged outside the smoke pipe (1) and the air intake pipe (11), and a second support (212) is arranged on one side of the first support (211).

3. The waste heat recovery and reuse device according to claim 1, characterized in that: The heat-conducting component (22) comprises a heat-conducting plate (221) arranged between the first bracket (211) and the second bracket (212), and heat-conducting silicone grease (222) is applied between the heat-conducting plates (221).

4. The waste heat recovery and reuse device according to claim 1, characterized in that: The heat insulation assembly (23) comprises a heat insulation shell (231) installed on the outside of the heat conduction plate (221), and the inside of the heat insulation shell (231) is filled with aerogel (232).

5. The waste heat recovery and reuse device according to claim 1, characterized in that: The fastening assembly (24) comprises a fixing rod (241) penetrating the surface of the first bracket (211), a gasket (242) is sleeved on the outer side of the fixing rod (241), and one end of the fixing rod (241) is threadedly connected to a nut group (243).

6. The waste heat recovery and reuse device according to claim 1, characterized in that: The outer walls of the smoke pipe (1) and the air intake pipe (11) are provided with a heat-insulating component (3), and the heat-insulating component (3) comprises heat-insulating cotton (31) arranged on the outer walls of the smoke pipe (1) and the air intake pipe (11), and a fixing ring (32) is sleeved on the outer side of the heat-insulating cotton (31).

7. The waste heat recovery and reuse device according to claim 1, characterized in that: An adjusting component (4) is provided at one end of the flue gas pipe (1) and the air intake pipe (11), and the adjusting component (4) comprises an adjusting valve (41) installed at one end of the flue gas pipe (1) and the air intake pipe (11), and a detector (42) is provided on one side of the adjusting valve (41).

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