CN220931126U - Heat exchange cavity capable of improving heat conversion rate - Google Patents
Heat exchange cavity capable of improving heat conversion rate Download PDFInfo
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- CN220931126U CN220931126U CN202322463597.0U CN202322463597U CN220931126U CN 220931126 U CN220931126 U CN 220931126U CN 202322463597 U CN202322463597 U CN 202322463597U CN 220931126 U CN220931126 U CN 220931126U
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 26
- 239000007789 gas Substances 0.000 claims description 59
- 239000002912 waste gas Substances 0.000 claims description 58
- 238000004880 explosion Methods 0.000 claims description 14
- 230000033001 locomotion Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 abstract description 15
- 230000000149 penetrating effect Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 description 12
- 238000013022 venting Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to the technical field of heat exchange, and provides a heat exchange cavity which is reasonable in structural design and capable of reducing heat energy waste and improving heat conversion rate, and the heat exchange cavity comprises a hollow cavity body with left and right ends penetrating through, wherein an exhaust gas inlet for exhaust gas to be combusted to enter is formed in the left end part of the front face of the outer wall of the cavity body, shutoff tube plates for limiting exhaust gas to diffuse towards the two ends are respectively arranged on the left end port and the right end port of the cavity body, mounting holes are correspondingly and uniformly formed in the two shutoff tube plates, a plurality of heat exchange tubes for conveying combusted exhaust gas through the cavity body to realize heat exchange are arranged between the two shutoff tube plates, the two ends of each heat exchange tube are respectively and closely inserted into the mounting holes, a flow gap for allowing the exhaust gas to flow and limiting the flow quantity of the exhaust gas to pass through is formed between the heat exchange tubes, the rear end part of the cavity body is provided with ventilation holes for exhausting the exhaust gas in the cavity body, and a baffle structure is arranged in the cavity body.
Description
Technical Field
The utility model relates to the technical field of heat exchange, in particular to a heat exchange cavity capable of improving heat conversion rate.
Background
In the process of treating waste gas, we generally burn the waste gas, convert the waste gas into pollution-free gas through combustion, and then discharge the pollution-free gas into the air. The burnt gas has a large amount of heat, and if the high-temperature air is directly discharged into the atmosphere, the heat energy is directly wasted, and a large amount of heat is also required in the waste gas combustion process. The waste heat recovery device can effectively recover the heat of the burnt gas to the waste gas to be burnt. Therefore, the heat is directly transferred, and the method is simpler, more convenient and lower in cost than the method for converting the heat into other energy.
The burnt gas is conveyed through the heat exchange pipeline, the heat exchange pipeline is arranged to be a U-shaped pipeline or an S-shaped pipeline or a spiral pipeline in order to improve heat transfer efficiency, and the contact area between the waste gas and the heat exchange pipeline is increased by prolonging the length of the heat exchange pipeline. However, the movement direction of the waste gas is the same as the setting direction of the heat exchange tube, the waste gas can only move along the heat exchange tube, no resistance is influenced, the waste gas is unfavorable for uniformly contacting with the heat exchange tube, so that the waste gas near the heat exchange tube absorbs more heat, the waste gas far from the heat exchange tube absorbs less heat, and the heat transfer efficiency is not ideal.
In order to increase the heat transfer efficiency of the exhaust gas, a heat exchange cavity for increasing the heat transfer efficiency by changing the movement path of the exhaust gas is provided.
Disclosure of utility model
Therefore, aiming at the problems, the utility model provides the heat exchange cavity which has reasonable structural design and can reduce heat energy waste and improve the heat conversion rate.
In order to solve the technical problems, the heat exchange cavity capable of improving the heat conversion rate comprises a hollow cavity with left and right ends penetrating through, an exhaust gas inlet for exhaust gas to be combusted is formed in the left end part of the front surface of the outer wall of the cavity, shutoff tube plates used for limiting the exhaust gas to diffuse towards the two ends are respectively arranged on the left end port and the right end port of the cavity, mounting holes are correspondingly and uniformly formed in the two shutoff tube plates, a plurality of heat exchange tubes for conveying combusted exhaust gas through the cavity to realize heat exchange are arranged between the two shutoff tube plates, the two ends of each heat exchange tube are respectively and closely inserted into the mounting holes, flow gaps for allowing the exhaust gas to flow and limiting the flow quantity of the exhaust gas to pass through are formed between the heat exchange tubes, so that the exhaust gas is bonded with the heat exchange tubes to uniformly pass through, ventilation holes for exhausting the exhaust gas in the cavity are formed in the rear end part of the cavity, and a baffle structure used for guiding the exhaust gas to be combusted to move along the direction of the vertical heat exchange tubes and increasing the resistance of the motion process of the exhaust gas and prolonging the contact duration of the exhaust gas and the heat exchange tubes is arranged in the cavity.
The further improvement is that: the cavity is provided with an expansion structure which can be adaptively deformed and restored when the air inlet pressure is overlarge so as to prevent the explosion of the furnace liner.
The further improvement is that: the expansion structure is a double-layer corrugated pipe, the cavity is divided into two sections between the waste gas inlet and the left end part of the furnace liner jacket, the double-layer corrugated pipe is arranged between the two sections of the cavity, and two ends of the double-layer corrugated pipe are respectively and closely fixed on the cavity.
The further improvement is that: the baffle structure comprises a plurality of semicircular baffle plates which are arranged between the waste gas inlet and the right end part of the cavity at intervals, the arc-shaped side surfaces of the semicircular baffle plates are vertically and fixedly arranged on the upper inner wall or the lower inner wall of the cavity, the plane side surfaces of the adjacent semicircular baffle plates are oppositely arranged, and through holes for the heat exchange tubes to vertically pass through are formed in the semicircular baffle plates.
The further improvement is that: the air holes comprise upper air holes which are uniformly formed in the upper part of the rear end part of the cavity in a single row.
The further improvement is that: the air holes also comprise lower air holes arranged on the right end opening of the inner wall below the cavity, the aperture of the upper air holes is smaller than that of the lower air holes, and the plane side surface of the semicircular baffle plate positioned on the rightmost end in the heat exchange cavity faces to the front.
The further improvement is that: an air inlet pipeline is fixedly arranged on the front surface of the outer wall of the left end part of the cavity, and the air outlet end of the air inlet pipeline is communicated with the inside of the cavity.
By adopting the technical scheme, the utility model has the beneficial effects that:
1. The heat exchange tube used in the scheme is a straight tube, the heat exchange tube is directly inserted on the intercepting tube plate and is easy to detach and install, each heat exchange tube is directly independent, and the heat exchange tube is convenient to replace independently.
2. In the scheme, the semicircular baffle plates are arranged in the cavity of the heat exchange cavity along the vertical heat exchange tubes and guide the waste gas, so that the waste gas moves along the vertical corrugated tube direction, the waste gas entering the heat exchange cavity can be ensured to be in contact with the heat exchange tubes uniformly, the flowing speed of the waste gas is reduced through flowing gaps between the heat exchange tubes, and meanwhile, the distance between the waste gas and the heat exchange tubes is shortened, so that the waste gas can fully absorb heat, and the heat conversion rate is improved.
3. The ventilation holes formed in the cavity of the heat exchange cavity comprise an upper ventilation hole and a lower ventilation hole, the upper ventilation hole is in a single row, the lower ventilation hole is in a plurality of rows, the aperture of the upper ventilation hole is smaller than that of the lower ventilation hole, so that waste gas after absorbing heat can be forced to overcome the rising characteristic of hot gas and contact with the heat exchange tube as much as possible, and meanwhile, the upper ventilation hole can increase the waste gas amount of the waste gas entering the gas transmission channel in the heat exchange cavity to avoid the explosion of the inner container when the pressure of the heat exchange cavity is overlarge, the upper ventilation hole can accelerate the movement speed of the waste gas, the movement speeds of the upper and lower waste gas are different, the temperature of the waste gas passing through the upper ventilation hole is not high when the temperature of the waste gas passing through the lower ventilation hole is high, and the waste gas passing through the upper ventilation hole and the lower ventilation hole can be mixed uniformly and comprehensively at the spiral guide of the spiral guide plate so as to facilitate the subsequent stable combustion.
Drawings
Fig. 1 is a schematic diagram showing the internal structure of a heat exchanger capable of improving heat conversion rate according to an embodiment of the present invention.
Fig. 2 is a schematic top view of an internal structure of a heat exchanger capable of improving heat conversion rate according to an embodiment of the present invention.
Fig. 3 is a schematic top view of a vent hole in a heat exchanger capable of improving heat conversion rate according to an embodiment of the invention.
Fig. 4 is a schematic view of a structure of a cutoff tube sheet in a heat exchanger capable of improving heat conversion rate according to an embodiment of the present invention.
FIG. 5 is a schematic view of a baffle plate structure in a heat exchanger capable of improving heat conversion rate according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a heat exchanger with a dispersion structure capable of improving heat conversion rate according to an embodiment of the present invention.
Fig. 7 is a schematic view showing a structure of a distribution plate in a heat exchanger capable of improving heat conversion rate according to an embodiment of the present invention.
Fig. 8 is a schematic diagram of a moving structure in a heat exchanger capable of improving heat conversion rate according to an embodiment of the present invention.
Description of the embodiments
The utility model will now be further described with reference to the drawings and specific examples.
Referring to fig. 1 to 8, embodiments of a heat exchange chamber capable of improving heat conversion rate are disclosed, which are particularly applicable to a heat exchanger capable of improving heat conversion rate.
The heat exchanger capable of improving the heat conversion rate comprises a furnace 10 and a furnace jacket 11 arranged outside the furnace 10, wherein a heat insulation protective cover 12 is covered on the periphery of the furnace jacket 11. The furnace 10 is provided with an exhaust outlet 13 for exhausting the combusted exhaust, a heat exchange cavity 14 for exchanging heat of the combusted exhaust, a dispersing cavity 15 for uniformly dispersing the combusted exhaust to the inner wall of the furnace 10 so as to facilitate the furnace wall to absorb the heat of the exhaust, and a combustion port 16 for penetrating the exhaust and combustion flame from left to right. The furnace 10 is provided with an outlet cone 17 with a diameter gradually reduced from right to left on the left port of the heat exchange cavity 14, an outlet pipeline 18 is arranged on the left port of the outlet cone 17, the right end part of the outlet cone 17 is welded or integrally fixedly connected with the cavity of the heat exchange cavity 14, the left end part is welded or integrally fixedly connected with the air inlet end of the air inlet pipeline 20, and the air outlet end of the outlet pipeline 18 is an exhaust gas outlet 13.
An air inlet pipeline 20 is fixedly arranged on the front surface of the outer wall of the left end part of the heat exchange cavity 14 in a welded mode, the air outlet end of the air inlet pipeline 20 is communicated with the inside of the heat exchange cavity 14, and an air inlet of the air inlet pipeline 20 is an exhaust gas inlet 21 into which exhaust gas to be combusted enters. The heat exchange device is characterized in that the left port and the right port of the heat exchange cavity 14 are respectively provided with a shutoff tube plate 22 used for diffusing and isolating exhaust gas from two ends to the exhaust gas outlet 13, the heat exchange cavity 14 and the dispersing cavity 15, the two shutoff tube plates 22 are correspondingly and uniformly provided with mounting holes 9, a plurality of heat exchange tubes 23 used for conveying the burnt exhaust gas in the dispersing cavity 15 to the exhaust gas outlet 13 through the heat exchange cavity 14 are arranged between the shutoff tube plates 22, two ends of the heat exchange tubes 23 are respectively and closely inserted into the mounting holes, a flow gap used for flowing exhaust gas and limiting the flow quantity of the exhaust gas to enable the exhaust gas to be jointed with the heat exchange tubes 23 to uniformly pass through and improve the heat exchange efficiency is formed between the heat exchange tubes 23, a flow gap used for guiding the exhaust gas to be burnt to move along the direction of the heat exchange tubes 23, increasing the resistance in the exhaust gas moving process to prolong the contact time of the exhaust gas and the heat exchange tubes 23 is arranged in the heat exchange cavity 14, a baffle block 24 used for keeping a fixed distance is arranged between the furnace 10 and the furnace 10 in a sealing mode, a U-shaped supporting block 24 used for keeping the heat exchange tube 10 is arranged between the furnace 10 and the furnace 11, the U-shaped supporting block is arranged on the bottom surface 25 of the U-shaped supporting block or the U-shaped supporting block 25 is welded on the bottom surface of the U-shaped supporting block 25 or the outer wall 25.
The air-conveying channel 26 is formed between the furnace 10 and the furnace jacket 11, the cavity at the rear end of the heat exchange cavity 14 is provided with air holes for the waste gas in the heat exchange cavity 14 to enter the air-conveying channel 26 between the outer wall of the furnace 10 and the furnace jacket 11, the air holes comprise upper air holes 19 which are uniformly formed in the rear end of the upper cavity of the heat exchange cavity 14 in a single row, and lower air holes 27 which are formed in the right end opening of the inner wall below the heat exchange cavity 14. The aperture of the upper vent hole 19 is smaller than that of the lower vent hole 27, so that the waste gas after absorbing heat can be forced to contact with the heat exchange tube 23 as much as possible to overcome the rising characteristic of hot gas, and much heat can be absorbed, meanwhile, the upper vent hole 19 can increase the waste gas amount of the waste gas in the heat exchange cavity 14 entering the gas transmission channel 26 to avoid the explosion of the inner container when the pressure of the heat exchange cavity 14 is overlarge, the upper vent hole 19 can accelerate the movement speed of the waste gas, the movement speeds of the upper and lower waste gas are different, the temperature of the waste gas passing through the upper vent hole 19 is not higher than that of the waste gas passing through the lower vent hole 27, and the waste gas passing through the upper vent hole 19 and the waste gas passing through the lower vent hole 27 can be uniformly mixed to have a comprehensive temperature under the spiral guide of the spiral guide plate 34, so that the subsequent stable combustion is facilitated.
The right end face of the furnace liner outer sleeve 11 is provided with a connecting port 28 for connecting an external burner, the periphery of the connecting port 28 on the right end face of the furnace liner outer sleeve 11 is filled with heat preservation cotton 29, and the heat preservation cotton 29 is filled on the outer surface of the right end face. The burner is characterized in that the combustion port 16 is provided with a distribution plate 30 for the concentrated flame emitted by the burner and the full combustion of waste gas, an opening 31 for the direct penetration of the inner ring flame is formed in the middle of the distribution plate 30, a through hole 32 for the penetration of the outer ring flame and the waste gas is formed in the periphery of the distribution plate 30, a guide hole 33 for the penetration of the flame and the waste gas and a guide plate 34 for guiding the concentrated flame and the waste gas penetrating through the guide hole 33 to the middle are formed in the distribution plate 30 by cutting and setting between the through hole 32 and the opening 31, the outer side of the guide plate 34 is fixedly arranged on the outer side of the guide hole 33, the inner side of the guide plate 34 is folded into a dispersion cavity 15 by 40-50 degrees, and the folding angle of the guide plate 34 is preferably 45 degrees. The guide holes 33 and the guide plates 34 are isosceles trapezoids, and the short sides of the isosceles trapezoids face the middle of the distribution plate 30. The combustion space 35 is formed between the distribution plate 30 and the connection port 28, the upper end part of the furnace pipe jacket 11, which is positioned at the position of the combustion space 35, is provided with an explosion venting structure for automatically venting pressure when the pressure in the furnace pipe 10 and the furnace pipe jacket 11 is overlarge, the dispersion cavity 15 is internally provided with a dispersion structure for dispersing the concentrated burnt waste gas, and the lower end parts of the furnace pipe 10 and the furnace pipe jacket 11 are provided with a plurality of groups of mobile structures which are convenient to move at intervals.
A guiding structure for prolonging the movement path of the exhaust gas and fully absorbing heat is arranged in the gas transmission channel 26. The guiding structure is a spiral guiding plate 34 (not shown in the figure) which is spirally wound and fixedly arranged in the gas transmission channel 26, and one side of the guiding plate 34 is fixedly arranged on the inner wall of the furnace jacket 11 or fixedly arranged on the outer wall of the furnace 10. In order to reduce the pressure of the exhaust gas in the gas delivery channel 26, the spiral guide plate 34 is equally divided into eight sections, the interval between each section is 100-300mm, preferably 180mm, and the eight sections of the spiral guide plate 34 are wound around the outer wall of the furnace 10 for one turn. The arrangement of the intervals between the spiral guide plates 34 increases the path of the exhaust gas moving along the axial direction of the furnace 10, and when the pressure of the exhaust gas in the gas transmission channel 26 is overlarge, the exhaust gas can directly shorten the stroke through the axial movement path, so that the flow of the exhaust gas is accelerated, and the furnace 10 and the furnace jacket 11 are prevented from being damaged due to overlarge pressure.
The cavity of the heat exchange cavity 14 is provided with an expansion structure which can adaptively deform and recover when the air inlet pressure is too high so as to prevent the explosion of the furnace 10. The expansion structure is a double-layer corrugated pipe 37, the double-layer corrugated pipe 37 is made of high-temperature alloy materials, the cavity of the heat exchange cavity 14 is divided into two sections between the waste gas inlet 21 and the left end part of the furnace liner jacket 11, the double-layer corrugated pipe 37 is arranged between the two sections of the cavities of the heat exchange cavity 14, and two ends of the double-layer corrugated pipe 37 are respectively welded and fixed on the cavity of the heat exchange cavity 14. The double-layered bellows 37 is softened and deformed in a high-temperature and high-pressure state, and protects the furnace 10 by deformation, thereby preventing the furnace 10 from cracking. And the double-layer corrugated pipe 37 is arranged outside the furnace pipe jacket 11, and the corrugated pipe can directly feed back deformation conditions.
The baffle structure comprises a plurality of semicircular baffle plates 38 which are arranged between the waste gas inlet 21 and the right end part of the heat exchange cavity 14 at intervals, the arc-shaped side surfaces of the semicircular baffle plates 38 are vertically and fixedly welded on the upper inner wall or the lower inner wall of the heat exchange cavity 14, the plane side surfaces of the adjacent semicircular baffle plates 38 are oppositely arranged, and penetrating holes 36 for the heat exchange tubes 23 to vertically penetrate through are formed in the semicircular baffle plates 38. The semicircular baffle plates 38 are arranged along the direction perpendicular to the heat exchange tubes 23 to guide the waste gas, so that the waste gas moves along the direction perpendicular to the corrugated tubes, the waste gas entering the heat exchange cavity 14 can be guaranteed to be uniformly contacted with the heat exchange tubes 23, the flowing speed of the waste gas is reduced due to flowing gaps between the heat exchange tubes 23, and meanwhile, the distance between the waste gas and the heat exchange tubes 23 is shortened, so that the waste gas can fully absorb heat, and the heat conversion rate is improved.
The explosion venting structure comprises an explosion venting channel 41 which is vertically arranged, an inclined explosion venting opening 42 is formed in the upper end of the explosion venting channel 41, an end cover 43 for closing the explosion venting opening is arranged on the explosion venting opening 42, the high side of the end cover 43 is rotatably hinged to the explosion venting channel 41, the inclination angle of the end cover 43 is 10-25 degrees, preferably 15 degrees, and a handle 44 for manually opening and closing the end cover 43 is arranged on the upper surface of the end cover 43. The end cover 43 can be automatically jacked up to release pressure when the internal pressure is too high, and can cover the explosion venting port 42 again after the pressure is reduced, and the inclined arrangement is beneficial to the automatic resetting of the end cover.
The dispersing structure comprises a first wind shielding ring 45 and a second wind shielding ring 46 which are sequentially arranged from right to left, a first wind shielding fan blade 48 and a second wind shielding fan blade 49 are respectively arranged on the first wind shielding ring 45 and the second wind shielding ring 46, the middle parts of the first wind shielding fan blade 48 and the second wind shielding fan blade 49 are protruded towards the distribution plate 30, the outer sides of the first wind shielding fan blade and the second wind shielding fan blade are fixedly arranged on the first wind shielding ring 45 and the second wind shielding ring 46 towards the heat exchange cavity 14, four first supporting plates 50 and second supporting plates 51 which are used for fixing the wind shielding rings on the inner wall of the dispersing cavity 15 are respectively arranged on the outer walls of the first wind shielding ring 45 and the second wind shielding ring 46, the first supporting plates 50 and the second supporting plates 51 are mutually staggered and obliquely arranged, one end of each first supporting plate 50 is fixedly arranged on the first wind shielding ring 45, the other end of each second supporting plate is fixedly arranged on the inner wall of the dispersing cavity 15, one end of each second supporting plate 51 is fixedly arranged on the second wind shielding ring 46, the other is fixedly arranged on the other, the other is fixedly arranged on the inner wall of the dispersing cavity 15, and the angle between the first supporting plates 50 and the second supporting plates are inclined at an angle of 40 degrees, and the outer diameter of the first wind shielding fan blade is smaller than the outer diameter of the first wind shielding fan blade and the angle is smaller than the angle of the first wind shielding fan blade 45 and the angle.
The moving structure comprises a supporting seat 52, an arc-shaped groove 53 attached to the outer wall of the furnace 10 or the outer wall of the recording jacket is formed in the upper end face of the supporting seat 52, a supporting shaft 54 is fixedly arranged at the lower end of the supporting seat 52 along the direction perpendicular to the central axis of the furnace 10, and rollers 55 are respectively arranged at two ends of the supporting shaft 54.
The right port of the furnace 10 is provided with a connecting cone 57 with the diameter gradually increasing from right to left, which is favorable for further and uniform diffusion of waste gas, the left port of the connecting cone 57 is welded or integrally fixedly connected with the cavity of the heat exchange cavity 14, the right port of the connecting cone 57 is welded or integrally fixedly connected with the cavity of the dispersing cavity 15, the furnace jacket 11 is provided with a diameter reducing section which is matched with the shape of the furnace 10 at the position of the connecting cone 57, the inner wall of the furnace jacket 11 is provided with at least three guide plates 58 which are uniformly distributed along the axial direction at the position of the diameter reducing section, the outer side of the guide plates 58 are fixedly welded on the inner wall of the furnace jacket 11, the guide plates 58 limit the rotation movement of the front section of the waste gas, so that the waste gas accelerates all energy in the axial direction of the furnace 10, and the spiral movement starts after the waste gas enters into the spiral guide plates 34.
The waste gas sequentially enters the heat exchange cavity 14, the gas transmission channel 26 and the combustion space 35 from the waste gas inlet 21 for combustion, then uniformly enters the heat exchange tube 23 under the action of the first wind shielding fan blade 48 and the second wind shielding fan blade 49, and finally is discharged from the gas outlet pipeline 18.
While the basic principles and main features of the present utility model and advantages thereof have been shown and described, it will be understood by those skilled in the art that the present utility model is not limited by the foregoing embodiments, which are described merely by way of illustration of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims and their equivalents.
Claims (7)
1. Can improve heat transfer chamber of heat conversion rate, run through hollow cavity, its characterized in that including controlling both ends: the exhaust gas heat exchange device comprises a cavity, and is characterized in that an exhaust gas inlet for allowing exhaust gas to be combusted to enter is formed in the left end part of the front surface of the outer wall of the cavity, shutoff tube plates for limiting exhaust gas to diffuse towards two ends are respectively arranged on the left end port and the right end port of the cavity, mounting holes are correspondingly and uniformly formed in the two shutoff tube plates, a plurality of heat exchange tubes for conveying combusted exhaust gas through the cavity to realize heat exchange are arranged between the two shutoff tube plates, the two ends of each heat exchange tube are respectively and closely inserted into the mounting holes, flow gaps for allowing the exhaust gas to flow and limiting the flow quantity of the exhaust gas to pass through are formed between the heat exchange tubes, so that the exhaust gas is attached to the heat exchange tubes and uniformly passes through the flow gaps for improving heat exchange efficiency, air holes for exhausting the exhaust gas in the cavity are formed in the rear end part of the cavity, and a baffle structure for guiding the exhaust gas to be combusted to move along the direction of the vertical heat exchange tubes and increasing resistance in the movement process of the exhaust gas and prolonging the contact time of the exhaust gas and the heat exchange tubes is arranged in the cavity.
2. A heat exchange chamber for increasing heat conversion according to claim 1, wherein: the cavity is provided with an expansion structure which can be adaptively deformed and restored when the air inlet pressure is overlarge so as to prevent the explosion of the furnace liner.
3. A heat exchange chamber for increasing heat conversion according to claim 2, wherein: the expansion structure is a double-layer corrugated pipe, the cavity is divided into two sections between the waste gas inlet and the left end part of the furnace liner jacket, the double-layer corrugated pipe is arranged between the two sections of the cavity, and two ends of the double-layer corrugated pipe are respectively and closely fixed on the cavity.
4. A heat exchange chamber for increasing heat conversion according to claim 1, 2 or 3, wherein: the baffle structure comprises a plurality of semicircular baffle plates which are arranged between the waste gas inlet and the right end part of the cavity at intervals, the arc-shaped side surfaces of the semicircular baffle plates are vertically and fixedly arranged on the upper inner wall or the lower inner wall of the cavity, the plane side surfaces of the adjacent semicircular baffle plates are oppositely arranged, and through holes for the heat exchange tubes to vertically pass through are formed in the semicircular baffle plates.
5. A heat exchange chamber for increasing heat conversion according to claim 1, 2 or 3, wherein: the air holes comprise upper air holes which are uniformly formed in the upper part of the rear end part of the cavity in a single row.
6. A heat exchange chamber for increasing heat conversion according to claim 5, wherein: the air holes also comprise lower air holes arranged on the right end opening of the inner wall below the cavity, the aperture of the upper air holes is smaller than that of the lower air holes, and the plane side surface of the semicircular baffle plate positioned on the rightmost end in the heat exchange cavity faces to the front.
7. A heat exchange chamber for increasing heat conversion according to claim 1, wherein: an air inlet pipeline is fixedly arranged on the front surface of the outer wall of the left end part of the cavity, and the air outlet end of the air inlet pipeline is communicated with the inside of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322463597.0U CN220931126U (en) | 2023-09-12 | 2023-09-12 | Heat exchange cavity capable of improving heat conversion rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322463597.0U CN220931126U (en) | 2023-09-12 | 2023-09-12 | Heat exchange cavity capable of improving heat conversion rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220931126U true CN220931126U (en) | 2024-05-10 |
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ID=90932006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322463597.0U Active CN220931126U (en) | 2023-09-12 | 2023-09-12 | Heat exchange cavity capable of improving heat conversion rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220931126U (en) |
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2023
- 2023-09-12 CN CN202322463597.0U patent/CN220931126U/en active Active
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