Waste heat recycling device
By designing a waste heat recovery device that includes a heat exchange tube, a heat exchange box, a heat storage box and a thermal conductive layer, the problem that the heat energy in the exhaust gas cannot be recycled is solved, and efficient heat energy recovery and resource conservation are achieved.
Patent Information
- Application Number
- CN202420224584.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-30
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-01-30
AI Technical Summary
The existing waste heat recovery device is not convenient to be installed on the exhaust gas pipeline, resulting in the inability to effectively recycle the heat energy in the exhaust gas and waste resources.
Design a waste heat recovery and utilization device, including a heat exchange tube, a heat exchange box, a heat storage box and a heat conduction layer. Heat exchange is carried out through the heat exchange tube and heat exchange box. The heat conduction layer and the inverted U-shaped tube are used to absorb the heat of the exhaust gas, and Intermittent storage through thermal storage boxes to reduce heat loss.
It realizes the effective recovery and utilization of heat in the exhaust gas, improves the use efficiency of thermal energy resources, reduces the waste of resources, and facilitates the installation and maintenance of the device.
Smart Images
Figure CN222378848U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waste heat recovery, in particular to a waste heat recovery and utilization device. Background Art
[0002] Waste heat refers to the sensible heat and latent heat that are not reasonably utilized in the original design of the energy-consuming devices of industrial enterprises that have been put into operation due to the limitations of historical, technological, and conceptual factors. It includes waste heat from high-temperature exhaust gas, waste heat from cooling media, waste heat from waste steam and waste water, waste heat from high-temperature products and slag, waste heat from chemical reactions, and waste heat from combustible waste gas, waste liquid, and waste materials. According to the survey, the total waste heat resources of various industries account for about 17% to 67% of their total fuel consumption, and the recyclable waste heat resources account for about 60% of the total waste heat resources.
[0003] Related technologies disclose a waste heat recovery and utilization device so that air enters a cold medium channel to exchange heat with the high-temperature exhaust gas in the hot medium channel. The preheating exhaust duct is connected to the outlet of the cold medium channel so that the air heated by heat exchange can pass into the working furnace, thereby recovering the waste heat of the discharged high-temperature gas. However, this device is not convenient to install on the exhaust gas pipeline. When the exhaust gas caused by processing is discharged, there is often more heat energy in the exhaust gas. If the heat energy in the exhaust gas pipeline cannot be recovered, more heat energy will be wasted. If the waste heat of the exhaust gas in the pipeline can be recovered, the waste of resources can be reduced.
[0004] In view of the above problems, the inventor proposes a waste heat recovery and utilization device to solve the above problems. Utility Model Content
[0005] The purpose of the utility model is to provide a waste heat recovery and utilization device to solve the problem that the heat energy in the pipeline cannot be recovered and utilized, which will waste a lot of heat energy, so as to achieve the effect of recovering the waste heat of the exhaust gas and reduce the waste of resources.
[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme: a waste heat recovery and utilization device, comprising two tube bodies, a heat exchange tube is commonly provided at one end of the opposite surfaces of the two tube bodies, a heat exchange box is provided at the upper end of the heat exchange tube, and a heat storage box is provided on the upper side of one end of the heat exchange box, an air inlet pipe is provided at one end of the heat exchange box, and an air outlet pipe is provided at one end of the heat storage box, both sides of the inner wall of the heat exchange tube are fixedly connected with discs, and the two discs are commonly penetrated with five lower transmission tubes, and five upper transmission tubes are penetrated at one end of the opposite surfaces of the discs, and an inverted U-shaped tube is commonly fixedly connected at one end of the opposite surfaces of the two upper transmission tubes at two corresponding positions, and the inverted U-shaped tube is located inside the heat exchange box, and a plurality of heat-conducting layers are fixedly provided on the inner wall of the heat exchange box, and the plurality of heat-conducting layers are penetrated and connected with the inverted U-shaped tube.
[0007] By adopting the above technical solution, the heat in the exhaust gas can be recycled through the heat exchange tubes and the heat exchange box, thereby improving the efficiency of using thermal energy resources.
[0008] Optionally, a box cover is provided at one end of the heat storage box, and the box cover is connected to the heat storage box by bolts. A ventilation pipe is provided at one end of the heat storage box, and both ends of the ventilation pipe are respectively connected to the heat storage box and the heat exchange box. The upper and lower inner walls of the heat storage box are slidably provided with multiple heat absorption layers.
[0009] By adopting the above technical solution, waste heat can be stored, heat loss can be reduced during heat transfer, and the thermal conductivity can be improved.
[0010] Optionally, a connecting ring is fixedly provided at one end of the tube body, and two mounting rings are sleeved on the outer surface of the heat exchange tube, and five connecting columns are connected through the connecting ring and the mounting ring at corresponding positions.
[0011] By adopting the above technical solution, the device can be easily installed and the installation is more secure.
[0012] Optionally, two connection blocks are fixedly provided at the lower end of the heat storage box, and one end of the two connection blocks is movably provided with an insertion column, and the insertion column is connected to the heat exchange box through.
[0013] By adopting the above technical solution, the heat storage structure is easy to install and disassemble, and the installation and maintenance of the device are convenient.
[0014] Optionally, four heat-conducting layers are provided, and the four heat-conducting layers are distributed at equal intervals up and down.
[0015] By adopting the above technical solution, the effect of waste heat absorption is improved.
[0016] Optionally, a heat absorbing plate is fixedly provided on the inner wall of the heat exchange tube, and a heat conducting pipe is provided at the lower end of the heat absorbing plate, and the heat conducting pipe is connected to the heat storage box.
[0017] By adopting the above technical solution, the heat in the pipe can be absorbed, further improving the efficiency of waste heat utilization.
[0018] Optionally, there are three heat absorption layers, and the three heat absorption layers are distributed at equal intervals.
[0019] By adopting the above technical solution, the heat absorption effect is further enhanced and more heat can be stored.
[0020] Optionally, blocks are fixedly provided at both upper and lower ends of the heat absorption layer, and sliding grooves for cooperating with the blocks are provided on the upper and lower inner walls of the heat storage box.
[0021] By adopting the above technical solution, the installation and disassembly of the heat absorbing structure are facilitated, the degree of heat storage can be controlled and the heat storage structure can be replaced.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. The utility model uses heat exchange tubes and heat exchange boxes. Under the action of the inverted U-shaped tubes and the heat conductive layer therein, the heat exchange tubes and the heat exchange box constitute a waste heat recovery device. The air inlet pipe blows air into the device, and the hot air is discharged through the air outlet pipe. The tail gas passing through the upper transmission pipe emits heat and is transmitted through the inverted U-shaped tube. The heat conductive layer can better absorb the heat of the tail gas. The blown gas passes through the heat conductive layer and the outer surface of the inverted U-shaped tube and is finally discharged from the air outlet pipe, so that the heat in the tail gas is recovered and utilized through the heat exchange tubes and the heat exchange box, thereby improving the utilization efficiency of thermal energy resources and being able to recover the waste heat of the tail gas in the pipeline, thereby achieving the effect of reducing the waste of resources;
[0024] 2. The utility model uses a heat storage box, and under the action of the heat absorption layer therein, hot air enters the heat storage box through the ventilation pipe and is then discharged. The heat can be well locked by the heat absorption layer, and the waste heat can be absorbed and stored intermittently, so that the waste heat can be stored, and the heat loss can be reduced during heat transfer, thereby improving the thermal conductivity. The three heat absorption layers designed with equal spacing further enhance the heat absorption effect and can store more heat. The cooperation of the block and the slide groove makes the heat absorption structure easy to install and disassemble, and the degree of heat storage can be controlled and the heat storage structure can be replaced. The heat absorption plate and the heat conducting pipe can absorb the heat in the pipe, further improving the efficiency of waste heat utilization. The intermittent heat storage structure is provided to make the waste heat recovery and utilization effect better, thereby achieving a higher recovery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0026] Figure 1 It is a schematic diagram of the structure of the utility model.
[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of the heat exchange tube and heat exchange box of the utility model.
[0028] Figure 3 It is an exploded schematic diagram of the internal structure of the heat storage box of the utility model.
[0029] In the figure: 1. pipe body; 2. heat exchange tube; 21. disc; 22. upper transmission tube; 23. lower transmission tube; 3. heat exchange box; 31. heat conduction layer; 32. inverted U-shaped tube; 4. heat storage box; 41. box cover; 42. heat absorption layer; 43. block; 44. slide; 45. air outlet pipe; 46. connecting block; 47. plug column; 48. heat absorption plate; 49. heat conduction tube; 5. connecting ring; 51. mounting ring; 52. connecting column; 6. air inlet pipe; 7. ventilation pipe. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] The following is combined with Figure 1 -Attached Figure 3 , further details of this application are given.
[0032] Example 1
[0033] A waste heat recovery device, referring to Figure 1-2 , comprising two tube bodies 1, a heat exchange tube 2 is commonly provided at one end of the opposite surfaces of the two tube bodies 1, a heat exchange box 3 is provided at the upper end of the heat exchange tube 2, and a heat storage box 4 is provided on the upper side of one end of the heat exchange box 3, an air inlet pipe 6 is provided at one end of the heat exchange box 3, and an air outlet pipe 45 is provided at one end of the heat storage box 4, both sides of the inner wall of the heat exchange tube 2 are fixedly connected with a disc 21, and the two discs 21 are commonly penetrated with five lower transmission tubes 23, and the opposite end of the disc 21 is penetrated with five upper transmission tubes 22, and the opposite ends of the upper transmission tubes 22 at two corresponding positions are commonly fixedly connected with an inverted U-shaped tube 32, and the inverted U-shaped tube 32 is located inside the heat exchange box 3, and the inner wall of the heat exchange box 3 is fixedly provided with a plurality of heat conductive layers 31, and the plurality of heat conductive layers 31 are penetrated and connected with the inverted U-shaped tube 32 Next, the pipe body 1 is the tail gas pipe body, the heat exchange pipe 2 and the heat exchange box 3 constitute a waste heat recovery and utilization device, and the heat storage box 4 can improve the efficiency of waste heat recovery. The air inlet pipe 6 blows air into the device, and the hot air is discharged through the outlet pipe 45 to recover the waste heat. The disc 21 can block the passage of the tail gas, so that the tail gas passes through the upper transmission pipe 22 and the lower transmission pipe 23. The tail gas passing through the upper transmission pipe 22 emits heat and is transmitted through the inverted U-shaped pipe 32. The heat conductive layer 31 can better absorb the heat of the tail gas. The blown gas passes through the heat conductive layer 31 and the outer surface of the inverted U-shaped pipe 32 and is finally discharged from the outlet pipe 45. In this process, the heat of the tail gas is absorbed, the waste heat can be stored, and the heat loss is reduced during heat transfer, which has the effect of improving the thermal conductivity.
[0034] Reference Figure 2 A connecting ring 5 is fixedly provided at one end of the tube body 1, and two mounting rings 51 are sleeved on the outer surface of the heat exchange tube 2. Five connecting columns 52 are connected through the connecting ring 5 and the mounting ring 51 at corresponding positions, which is convenient for installing the device and has high installation firmness.
[0035] Reference Figure 2 Two connecting blocks 46 are fixedly provided at the lower end of the heat storage box 4, and one end of the two connecting blocks 46 is movably inserted with a plug post 47, which is connected to the heat exchange box 3 through the insertion column 47, so that the heat storage structure is easy to install and disassemble, and the installation and maintenance of the device are convenient.
[0036] Reference Figure 2 There are four heat-conducting layers 31, and the four heat-conducting layers 31 are distributed at equal intervals up and down, thereby improving the effect of absorbing residual heat.
[0037] Reference Figure 2 A heat absorbing plate 48 is fixedly provided on the inner wall of the heat exchange tube 2, and a heat conducting pipe 49 is provided at the lower end of the heat absorbing plate 48. The heat conducting pipe 49 is connected to the heat storage box 4 and can absorb the heat in the tube, thereby further improving the efficiency of waste heat utilization.
[0038] The implementation principle of the embodiment of the present application is as follows: the pipe body 1 is the tail gas pipe body, the heat exchange pipe 2 and the heat exchange box 3 constitute a waste heat recovery device, and the heat storage box 4 can improve the efficiency of waste heat recovery. The air inlet pipe 6 blows air into the device, and the hot air is discharged through the air outlet pipe 45 to recover the waste heat. The disc 21 can block the passage of the tail gas, so that the tail gas passes through the upper transmission pipe 22 and the lower transmission pipe 23. The tail gas passing through the upper transmission pipe 22 emits heat and is transmitted through the inverted U-shaped pipe 32. The heat conductive layer 31 can better absorb the heat of the tail gas, and the gas blown in passes through the heat conductive layer The outer surface of 31 and the inverted U-shaped tube 32 is finally discharged from the exhaust pipe 45, so that the heat in the exhaust gas is recycled through the heat exchange tube 2 and the heat exchange box 3, thereby improving the efficiency of using thermal energy resources and storing the waste heat. The connecting ring 5 and the mounting ring 51 facilitate the installation of the device, and the installation is relatively firm. The cooperation of the connecting block 46 and the plug 47 makes the heat storage structure easy to install and disassemble, and facilitates the installation and maintenance of the device. The heat absorbing plate 48 and the heat conducting tube 49 can absorb the heat in the tube, further improving the efficiency of waste heat utilization.
[0039] Example 2
[0040] The difference between this embodiment and embodiment 1 is that:
[0041] Reference Figure 3A box cover 41 is provided at one end of the heat storage box 4, and a ventilation pipe 7 is provided at one end of the heat storage box 4, and the two ends of the ventilation pipe 7 are respectively connected to the heat storage box 4 and the heat exchange box 3, and the upper and lower inner walls of the heat storage box 4 slide together to provide a plurality of heat absorption layers 42, and the hot air enters the heat storage box 4 through the ventilation pipe 7 and is then discharged. The box cover 41 can ensure the sealing of the heat storage box 4, and the heat can be well locked through the heat absorption layer 42, and the residual heat can be absorbed and stored intermittently, and the residual heat can be stored, which reduces the heat loss during heat transfer and improves the thermal conductivity. The three heat absorption layers 42 designed with equal spacing further enhance the heat absorption effect and can store more heat.
[0042] Reference Figure 3 There are three heat absorbing layers 42, and the three heat absorbing layers 42 are distributed at equal intervals, which further enhances the heat absorption effect and can store more heat.
[0043] Reference Figure 3 The upper and lower ends of the heat absorption layer 42 are fixed with blocks 43, and the upper and lower inner walls of the heat storage box 4 are provided with slide grooves 44 used in conjunction with the blocks 43, which are convenient for installation and disassembly of the heat absorption structure, the degree of heat storage can be controlled and the heat storage structure can be replaced. The hot air enters the heat storage box 4 through the ventilation pipe 7 and is then discharged. The box cover 41 can ensure the sealing of the heat storage box 4. The heat absorption layer 42 can lock the heat well, absorb the residual heat intermittently, store the residual heat, reduce the heat loss during heat transfer, and improve the thermal conductivity. The three heat absorption layers 42 with equal spacing design further enhance the heat absorption effect and can store more heat. The cooperation of the blocks 43 and the slide grooves 44 makes the heat absorption structure easy to install and disassemble, the degree of heat storage can be controlled and the heat storage structure can be replaced.
[0044] 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 equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. A waste heat recovery device, comprising two pipe bodies (1), characterized in that: A heat exchange tube (2) is commonly provided at one end of the opposite surfaces of the two tube bodies (1), a heat exchange box (3) is provided at the upper end of the heat exchange tube (2), and a heat storage box (4) is provided on the upper side of one end of the heat exchange box (3), an air inlet pipe (6) is provided at one end of the heat exchange box (3), and an air outlet pipe (45) is provided at one end of the heat storage box (4), and a disc (21) is fixedly connected to both sides of the inner wall of the heat exchange tube (2), and the two discs (21) are commonly penetrated by five The heat exchange box (3) has a plurality of lower transmission tubes (23), and five upper transmission tubes (22) are penetrated at one end of the opposite surface of the disk (21), and an inverted U-shaped tube (32) is fixedly connected to one end of the opposite surface of the upper transmission tubes (22) at two corresponding positions, and the inverted U-shaped tube (32) is located inside the heat exchange box (3), and a plurality of heat conductive layers (31) are fixedly provided on the inner wall of the heat exchange box (3), and the plurality of heat conductive layers (31) are penetrated and connected to the inverted U-shaped tube (32).
2. A waste heat recovery device according to claim 1, characterized in that: A box cover (41) is provided at one end of the heat storage box (4), a ventilation pipe (7) is provided at one end of the heat storage box (4), and both ends of the ventilation pipe (7) are respectively connected to the heat storage box (4) and the heat exchange box (3), and the upper and lower inner walls of the heat storage box (4) are slidably provided with a plurality of heat absorption layers (42).
3. The waste heat recovery device according to claim 1, characterized in that: A connecting ring (5) is fixedly provided at one end of the tube body (1), and two mounting rings (51) are sleeved on the outer surface of the heat exchange tube (2), and five connecting columns (52) are connected through the connecting ring (5) and the mounting ring (51) at corresponding positions.
4. The waste heat recovery device according to claim 1, characterized in that: Two connection blocks (46) are fixedly provided at the lower end of the heat storage box (4), and one end of each of the two connection blocks (46) is movably inserted with an insertion column (47), and the insertion column (47) is connected to the heat exchange box (3) through.
5. The waste heat recovery device according to claim 1, characterized in that: Four heat-conducting layers (31) are provided, and the four heat-conducting layers (31) are distributed at equal intervals up and down.
6. The waste heat recovery device according to claim 1, characterized in that: A heat absorbing plate (48) is fixedly provided on the inner wall of the heat exchange tube (2), and a heat conducting pipe (49) is provided at the lower end of the heat absorbing plate (48), and the heat conducting pipe (49) is connected to the heat storage box (4).
7. The waste heat recovery device according to claim 2, characterized in that: The heat absorption layers (42) are provided with three, and the three heat absorption layers (42) are distributed at equal intervals.
8. The waste heat recovery device according to claim 2, characterized in that: Blocks (43) are fixedly provided at both upper and lower ends of the heat absorption layer (42), and sliding grooves (44) used in conjunction with the blocks (43) are provided on the upper and lower inner walls of the heat storage box (4).