CN115265254A - Fin structure, heat exchanger and hot water system - Google Patents

Abstract

An embodiment of the present invention provides a fin structure, a heat exchanger, and a water heating apparatus, wherein the fin structure includes: a fin substrate; a plurality of pipe holes arranged on the fin base plate; the plurality of convex ribs are arranged on the fin base plate and are convex towards one side of the fin base plate, smoke flows from one side of the fin base plate to the other side of the fin base plate, and the convex ribs are not parallel to the flowing direction of the smoke. According to the technical scheme, on one hand, the overall strength of the fin base plate can be improved, compared with a conventional stainless steel fin, the same effect can be achieved by adopting thinner materials, the use of materials is reduced, the cost can be reduced, and the thermal inertia of the heat exchanger can be reduced so as to obtain smaller water cut-off temperature rise; on the other hand, the turbulent flow of the smoke or other media can be enhanced, the excessive media are prevented from being gathered on the surface of the fin substrate, the boundary layer between the media and the fins is thinned, and the heat transfer effect is enhanced; moreover, the convex ribs can increase the heat exchange area and improve the heat exchange capacity of the heat exchanger.

Description

Fin structure, heat exchanger and hot water device

Technical Field

The embodiment of the invention relates to the technical field of water heating devices, in particular to a fin structure, a heat exchanger and a water heating device.

Background

In the related art, manufacturers producing heat exchangers of gas water heaters start to use stainless steel materials instead of copper materials in consideration of the risk of corrosion of condensed water in the related art. As the heat conductivity coefficient of the stainless steel material is 20W/mK which is far lower than the heat conductivity coefficient of copper which is 400W/mK, a larger heat exchange area is needed to achieve the same heat efficiency.

Disclosure of Invention

In order to solve at least one of the above technical problems, an object of an embodiment of the present invention is to provide a fin structure.

Another object of an embodiment of the present invention is to provide a heat exchanger having the above-described fin structure.

Another object of an embodiment of the present invention is to provide a hot water apparatus having the above heat exchanger.

To achieve the above object, an embodiment of a first aspect of the present invention provides a fin structure, including: a fin substrate; a plurality of pipe holes arranged on the fin base plate; the plurality of convex ribs are arranged on the fin base plate and are convex towards one side of the fin base plate, smoke flows from one side of the fin base plate to the other side of the fin base plate, and the convex ribs are not parallel to the flowing direction of the smoke.

According to the embodiment of the fin structure provided by the invention, on one hand, the overall strength of the fin base plate can be improved, compared with the conventional stainless steel fin, the same effect can be achieved by adopting thinner materials, the cost can be reduced by reducing the use of the materials, and the thermal inertia of the heat exchanger can be reduced so as to obtain smaller water cut-off temperature rise; on the other hand, the turbulent flow of the smoke or other media can be enhanced, the excessive media are prevented from being gathered on the surface of the fin substrate, the boundary layer between the media and the fins is thinned, and the heat transfer effect is enhanced; moreover, the convex ribs can increase the heat exchange area and improve the heat exchange capacity of the heat exchanger.

Specifically, the fin structure includes a fin base plate, a plurality of tube holes, and a plurality of ribs. The fin base plate is the plate structure, can be arbitrary shape according to actual demand. A plurality of tube holes are formed in the fin base plate and used for being assembled with the water pipes, and the fin base plate can be connected with the water pipes simultaneously through the plurality of tube holes. The plurality of pipe holes are arranged in a row on the fin base plate, namely the pipe holes are aligned in one row or one column, the arrangement mode is easy to clean, when smoke or other media flow through the fin base plate, the resistance is small, but the heat transfer coefficient is small and the heat exchange area is large compared with a staggered arrangement mode under the same condition; or, a plurality of pipe holes are arranged in a staggered manner on the fin base plate, namely, the pipe holes are not all arranged in alignment in the row or column direction, the arrangement mode can improve the disturbance capacity to flue gas or other media, the heat transfer coefficient is large, and the heat exchange area is favorably reduced under the same condition. It should be noted that the orifice may be circular or oval, and may have other shapes. Furthermore, the flanging can be arranged at the edge of the pipe hole, so that the pipe hole and the water pipe are more conveniently connected, and the connection strength of the pipe hole and the water pipe can be improved.

In the related art, manufacturers producing heat exchangers of gas water heaters start to use stainless steel materials instead of copper materials in consideration of the risk of corrosion of condensed water. As the heat conductivity coefficient of the stainless steel material is 20W/mK which is far lower than the heat conductivity coefficient of copper which is 400W/mK, a larger heat exchange area is needed to achieve the same heat efficiency. However, the installation space of the heat exchanger is limited, and the heat exchange area is large, which means that the flow resistance of the medium is high. In addition, the heat inertia of the heat exchanger is large due to more materials, and the water stop temperature is increased.

Among the technical scheme that this application was injectd, on the fin base plate was located to a plurality of protruding muscle, specifically, protruding muscle is formed by the surface arch of fin base plate, and protruding muscle and fin base plate formula structure as an organic whole promptly compares in the mode of post-processing, and mechanical properties is good, and joint strength is higher, and is favorable to reducing the quantity of spare part. Further, the shape of the ribs may be various, such as: straight, V, U, etc. By arranging the convex ribs, on one hand, the overall strength of the fin base plate can be improved, compared with the conventional stainless steel fin, the same effect can be achieved by adopting thinner materials, the cost can be reduced by reducing the use of the materials, and the thermal inertia of the heat exchanger can be reduced to obtain smaller water cut-off temperature rise; on the other hand, the turbulent flow of the smoke or other media can be enhanced, the excessive media are prevented from being gathered on the surface of the fin substrate, the boundary layer between the media and the fins is thinned, and the heat transfer effect is enhanced; moreover, the convex ribs can increase the heat exchange area and improve the heat exchange capacity of the heat exchanger.

The application provides an efficient stainless steel fin scheme, reduces heat transfer area and material, practices thrift the cost, reduces the temperature rise of cutting off the water supply. In conventional plate heat exchanger, the medium is refrigerant or water, and the medium in this application can be the flue gas. Furthermore, the flue gas flows from one side of the fin base plate to the other side, and the convex ribs are not parallel to the flow direction of the flue gas. The convex ribs can play a role in guiding flow, and guide media to the position near the water pipe for heat exchange. In addition, the convex ribs can also disturb flow by media, so that a boundary layer is thinned and heat transfer is enhanced. In the working process, when smoke flows through the fins, the smoke firstly passes through the front ends of the fin base plates and then flows through the convex ribs, and as the resistance of the convex parts is larger than that of gaps between the pipe holes and the protrusions, more smoke can flow through the gaps between the pipe holes and the protrusions; in addition, the smoke flowing through the convex rib part is influenced by the turbulent flow, and when the smoke crosses the convex rib, the smoke generates the speed vertical to the plane of the fin base plate, so that the heat transfer boundary layer can be thinned, and the heat exchange effect can be enhanced. When flue gas flows to the pipe holes in the back row, basically in the same way, one part of flue gas flows to the position close to the water pipe after being drained, and the other part of flue gas is favorable for thinning the boundary layer of the back side part of the fin substrate through turbulent flow, so that the heat transfer effect is further enhanced.

In addition, the technical scheme provided by the invention can also have the following additional technical characteristics:

in the above technical solution, the method further comprises: the first flanging extends from the pipe hole to one side of the fin substrate; and the flanging holes are arranged on two sides of the fin base plate relative to the flowing direction, and the extending direction of the flanging holes is the same as that of the first flanging.

In the technical scheme, the fin structure further comprises a first flanging and a flanging hole. Specifically, the first flanging extends from the pipe hole to one side of the fin substrate, and through the arrangement of the first flanging, a worker can conveniently and quickly connect the water pipe with the pipe hole, and the connection strength of the pipe hole and the water pipe can be improved.

It is worth mentioning that, the first flanging and the fin base plate are of an integrated structure, and compared with a post-processing mode, the fin base plate has good mechanical property and higher connection strength, and is beneficial to reducing the number of parts.

Furthermore, the flanging holes are formed in the two sides, relative to the flowing direction, of the fin base plate, the number of the flanging holes can be one, two or more, and the flanging holes are flexibly arranged according to actual requirements. Through setting up the turn-ups hole, can carry out the water conservancy diversion to the flue gas, make the flue gas be close to the water pipe as far as, reinforcing heat transfer effect.

In the technical scheme, the fin base plate comprises a smoke facing side and a smoke back side, smoke flows from the smoke facing side to the smoke back side, and the outline of the smoke facing side of the fin base plate is matched with the shape of the tube hole.

In the technical scheme, the fin base plate comprises a smoke facing side and a smoke back side. Specifically, the smoke flows from the smoke facing side to the smoke backing side, firstly passes through the front end of the fin base plate and then flows through the convex ribs, and as the resistance of the convex parts is larger than that of the gaps between the pipe holes and the protrusions, more smoke can flow through the gaps between the pipe holes and the protrusions; in addition, the smoke flowing through the convex rib part is influenced by the turbulent flow, and when the smoke crosses the convex rib, the smoke generates the speed vertical to the plane of the fin base plate, so that the heat transfer boundary layer can be thinned, and the heat exchange effect can be enhanced. When flue gas flows to the pipe holes in the back row, basically in the same way, one part of flue gas flows to the position close to the water pipe after being drained, and the other part of flue gas is favorable for thinning the boundary layer of the back side part of the fin substrate through turbulent flow, so that the heat transfer effect is further enhanced.

Furthermore, the profile of the smoke facing side of the fin substrate is matched with the shape of the tube hole, so that the flow guide and the flow disturbance of smoke are facilitated, and the heat exchange effect is improved.

In the above technical solution, the method further comprises: and the at least one hole groove is arranged on the smoke facing side of the fin base plate, and each hole groove is arranged between the two pipe holes.

In this technical scheme, the fin structure still includes the hole groove of locating the side that faces the cigarette of fin base plate. In particular, the number of the hole slots is at least one, i.e. the number of the hole slots can be one, two or more, each hole slot being provided between two pipe holes. Can avoid fin dry combustion method to a certain extent through setting up the hole groove, and can play the effect of reposition of redundant personnel.

In the technical scheme, the number of the hole grooves is multiple, and the depth of one of the hole grooves is larger than that of the rest hole grooves.

In this technical scheme, set up to a plurality ofly through the quantity with the hole groove, and the degree of depth of one in a plurality of hole grooves is greater than the degree of depth of all the other hole grooves, can further avoid the fin the condition of dry combustion method to appear, the effect of reinforcing reposition of redundant personnel.

In the technical scheme, the hole groove with larger depth is arranged in the middle of the fin base plate.

In this technical scheme, through setting up the great hole groove of degree of depth at the middle part of fin base plate, when connecting two fin base plates, the flue gas of fin base plate both sides can pass through the hole groove intercommunication, and then avoids the fin dry combustion method to appear.

In the above technical solution, further comprising: the groove is arranged on the smoke-back side, and the shape of the groove is matched with that of the smoke-facing side.

In this technical scheme, the fin structure still includes the recess of locating back of the body cigarette side. Specifically, through the shape looks adaptation with the shape of recess and the shape of meeting the cigarette side, when connecting two fin base plates, the profile of one of them fin base plate front end can with the profile looks adaptation of another fin base plate rear end to realize continuous punching press, improve production efficiency.

In the above technical solution, the method further comprises: the opening flanging is arranged on the fin base plate, the opening flanging is arranged at the position, close to the smoke facing side, of the groove, and the opening of the opening flanging faces the smoke back side.

In the technical scheme, the fin structure further comprises an opening flanging arranged on the fin base plate. Specifically, the opening turn-ups is located the recess and is close to the position of meeting the cigarette side, and the turn-ups of opening is towards the back of the body cigarette side, and when the flue gas was arrived the cigarette side by the meeting of fin base plate and is flowed to the back of the body cigarette side, the opening turn-ups can lead the flue gas to fin base plate both sides and be close to the position of water pipe, in other words, carries out the water conservancy diversion with the flue gas in exit, makes the flue gas around the wake district of flowing water pipe, the effect of reinforcing heat transfer.

It is worth mentioning that the opening flanging and the fin base plate can be of an integrated structure, and compared with a post-processing mode, the opening flanging and the fin base plate are good in mechanical property and high in connection strength, and the number of parts is reduced.

In the above technical solution, the method further comprises: and the side flanging is arranged on two opposite sides of the fin base plate in the flow direction.

In this technical scheme, the fin structure still includes the side turn-ups. Specifically, the side flanging is arranged on the two opposite sides of the fin base plate in the flowing direction of the smoke, the smoke flows to the smoke-back side from the smoke-facing side of the fin base plate, the side flanging is arranged on the left side and the right side of the fin base plate, and the smoke flowing to the two sides of the fin base plate can be further guided and disturbed by arranging the side flanging, so that the smoke is close to the water pipe as much as possible, and the heat transfer effect is enhanced.

In the technical scheme, the angle formed between the side flanging and the fin base plate is greater than or equal to 90 degrees.

In this technical scheme, through setting up the angle that side turn-ups and fin base plate are for being more than or equal to 90, the angle between side turn-ups and the fin base plate is right angle or obtuse angle promptly, at a plurality of fin base plate assembly backs, can form inclosed passageway, in case leak the cigarette, causes the combustion chamber and encloses the frame overtemperature.

In the above technical solution, the method includes: and the lightening holes are arranged on the fin base plate and penetrate through the fin base plate along the axial direction of the tube holes.

In the technical scheme, the fin structure further comprises lightening holes arranged on the fin base plate. Specifically, the lightening holes penetrate through the fin base plate along the axial direction of the tube hole, and the lightening holes are arranged, so that the lightening effect can be achieved on one hand; on the other hand, the material is saved, the heat exchange area is reduced, the thermal inertia can be reduced, and the water supply and temperature rise are relatively small.

In the technical scheme, a plurality of pipe holes are arranged in a staggered manner; or a plurality of pipe holes are arranged in a row.

In this technical scheme, through arranging a plurality of tube holes fork, the tube hole is not all the alignment setting in the direction of arranging or arranging promptly, and this kind of arrangement can improve the disturbance ability to flue gas or other medium, and heat transfer coefficient is big, is favorable to reducing heat transfer area under the same condition, and then is favorable to reducing thermal inertia, has less temperature rise of cutting off water supply.

Alternatively, the plurality of tube holes are arranged in a row, that is, the tube holes are aligned in one row or one column, the arrangement mode is easy to clean, the resistance is small when smoke or other media flow through the fin substrate, but the heat transfer coefficient is small and the heat exchange area is large compared with the mode of the staggered arrangement under the same condition.

An embodiment of a second aspect of the invention provides a heat exchanger comprising: a heat exchange pipe; a plurality of the fin structures of any of the above embodiments, the plurality of fin structures being arranged side by side.

According to an embodiment of the heat exchanger of the present invention, the heat exchanger comprises a heat exchange tube and a plurality of fin structures. Specifically, a plurality of fin structures set up side by side, are favorable to improving the utilization ratio in space, reinforcing heat transfer effect. In addition, when the fin substrates in the fin structures are mutually spliced, the smoke facing side of one fin substrate is matched with the smoke back side of the other fin substrate, and as the profile of the smoke facing side of the fin substrate is matched with the shape of the pipe hole and the shape of the groove is matched with the shape of the smoke facing side, continuous stamping of different fin substrates is facilitated, and the production efficiency is improved.

The heat exchanger includes any fin structure in the first aspect, so that the heat exchanger has the beneficial effects of any of the embodiments described above, and details are not repeated herein.

In the technical scheme, the plurality of fin substrates are arranged adjacently along the axial direction of the tube holes of the fin structures, and the side edges of two adjacent fin structures are attached to each other.

In the technical scheme, the fin base plates are arranged adjacently along the axial direction of the tube holes of the fin structures, the side flanging in the two adjacent fin structures can be attached to each other to form a closed channel, so that smoke leakage is prevented, and the possibility of over-temperature of the combustion chamber enclosure frame is greatly reduced.

Embodiments of the third aspect of the invention provide a water heating apparatus comprising: a water tank; in the heat exchanger in the above embodiment, the water tank is communicated with the heat exchange tube in the heat exchanger.

According to an embodiment of the water heating apparatus of the present invention, the water heating apparatus includes a water tank and a heat exchanger. Specifically, the water tank is linked together with the heat exchange tube in the heat exchanger, and the heat exchanger carries out the heat transfer with the rivers in the water pipe, heats the water in the water pipe promptly according to predetermineeing the temperature, and then the hydroenergy after the heating can be stored in the water tank.

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 shows a schematic view of a fin structure according to one embodiment of the invention;

FIG. 2 shows a schematic view of a fin structure according to another embodiment of the invention;

FIG. 3 shows a schematic view of a fin structure according to another embodiment of the invention;

FIG. 4 shows a schematic view of a fin structure according to another embodiment of the invention;

FIG. 5 shows a schematic view of a fin structure according to another embodiment of the invention;

FIG. 6 shows a schematic block diagram of a heat exchanger according to an embodiment of the present invention;

fig. 7 shows a schematic block diagram of a hot water device according to an embodiment of the invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 7 is:

100: a fin structure; 110: a fin substrate; 121: a tube hole; 122: a first flanging; 130: a rib is protruded; 140: flanging holes; 151: the smoke facing side; 152: a back smoke side; 160: a hole groove; 171: a groove; 172: opening and flanging; 181: side flanging; 182: lightening holes; 200: a heat exchanger; 210: a heat exchange tube; 300: a hot water device; 310: a water tank.

Detailed Description

In order that the above objects, features and advantages of the embodiments of the present invention can be more clearly understood, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, embodiments of the present invention may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.

A fin structure 100, a heat exchanger 200, and a hot water apparatus 300 provided according to some embodiments of the present invention are described below with reference to fig. 1 to 7.

Example one

As shown in fig. 1 to 4, a fin structure 100 according to an embodiment of the present invention includes a fin base 110, a plurality of tube holes 121, and a plurality of ribs 130. The fin substrate 110 is a plate structure, and may have any shape according to actual requirements. A plurality of pipe holes 121 are provided in the fin base plate 110, and the pipe holes 121 are used to be fitted with water pipes, and the plurality of pipe holes 121 are provided to enable simultaneous connection with the plurality of water pipes. The plurality of tube holes 121 are arranged in a row on the fin base plate 110, that is, the tube holes 121 are aligned in a row or a column, the arrangement mode is easy to clean, when smoke or other media flow through the fin base plate 110, the resistance is small, but the heat transfer coefficient is small and the heat exchange area is large compared with the staggered arrangement mode under the same condition; or, the plurality of tube holes 121 are arranged in a staggered manner on the fin base plate 110, that is, the tube holes 121 are not all arranged in alignment in the row or column direction, and this arrangement can improve the disturbance capability to flue gas or other media, has a large heat transfer coefficient, and is beneficial to reducing the heat exchange area under the same condition. It should be noted that the tube hole 121 may be circular or oval, and may have other shapes. Further, the edge of the pipe hole 121 can be provided with a flanging, so that the pipe hole 121 is more convenient to be connected with a water pipe, and the connection strength of the pipe hole 121 and the water pipe can be improved.

In the related art, manufacturers producing heat exchangers of gas water heaters start to use stainless steel materials instead of copper materials in consideration of the risk of corrosion of condensed water. As the heat conductivity coefficient of the stainless steel material is 20W/mK which is far lower than the heat conductivity coefficient of copper, namely 400W/mK, the same heat efficiency is achieved, and a larger heat exchange area is required. However, the installation space of the heat exchanger is limited, and the heat exchange area is large, which means that the flow resistance of the medium is high. In addition, the heat inertia of the heat exchanger is large due to more materials, and the water stop temperature is increased.

In the technical scheme that this application was injectd, a plurality of protruding muscle 130 are located on the fin base plate 110, specifically, protruding muscle 130 is formed by the surface projection of fin base plate 110, and protruding muscle 130 and fin base plate 110 formula structure as an organic whole promptly compare in the mode of post-processing, and mechanical properties is good, and joint strength is higher, and is favorable to reducing the quantity of spare part. Further, the shape of the rib 130 may be various, such as: straight, V, U, etc. By arranging the ribs 130, on one hand, the overall strength of the fin base plate 110 can be improved, compared with the conventional stainless steel fin, the same effect can be achieved by adopting thinner materials, the cost can be reduced by reducing the use of the materials, and the thermal inertia of the heat exchanger 200 can be reduced to obtain smaller water cut-off temperature rise; on the other hand, the turbulent flow of the smoke or other media can be enhanced, the excessive media are prevented from being gathered on the surface of the fin substrate 110, the boundary layer between the media and the fins is thinned, and the heat transfer effect is enhanced; moreover, the ribs 130 can increase the heat exchange area and improve the heat exchange capability of the heat exchanger 200.

The application provides an efficient stainless steel fin scheme, reduces heat transfer area and material, practices thrift the cost, reduces the temperature rise of cutting off the water supply. In the conventional plate heat exchanger 200, the medium is a refrigerant or water, and the medium in this application may be flue gas. Further, the flue gas flows from one side of the fin base plate 110 to the other side, and the ribs 130 are not parallel to the flow direction of the flue gas. The ribs 130 can play a role in guiding the medium to the vicinity of the water pipe for heat exchange. In addition, the ribs 130 can also disturb flow by media, reduce a boundary layer and enhance heat transfer. In the working process, when smoke flows through the fins, the smoke firstly passes through the front end of the fin base plate 110 and then flows through the convex ribs 130, and as the resistance of the convex parts is larger than that of the gaps between the pipe holes 121 and the protrusions, more smoke can flow through the gaps between the pipe holes 121 and the protrusions; and the other part of the smoke flowing through the rib 130 is influenced by the turbulent flow, and when the smoke crosses the rib 130, the smoke generates a speed vertical to the plane of the fin base plate 110, so that the heat transfer boundary layer can be thinned, and the heat exchange effect can be enhanced. When the flue gas flows to the pipe holes 121 in the back row, in the same way, one part of the flue gas flows to the position close to the water pipe after being guided, and the other part of the flue gas is favorable for thinning the boundary layer of the back part of the fin substrate 110 through turbulent flow, so that the heat transfer effect is further enhanced.

Example two

As shown in fig. 1 to 4, a fin structure 100 according to an embodiment of the present invention includes a fin base 110, a plurality of tube holes 121, and a plurality of ribs 130. The fin substrate 110 is a plate structure, and may have any shape according to actual requirements. The fin base plate 110 has a plurality of tube holes 121, and the tube holes 121 are provided to be fitted with water tubes, and the plurality of tube holes 121 are provided to simultaneously connect to the plurality of water tubes. Further, a plurality of ribs 130 are disposed on the fin base plate 110, specifically, the ribs 130 are formed by protruding the surface of the fin base plate 110, that is, the ribs 130 and the fin base plate 110 are of an integrated structure, compared with a post-processing manner, the mechanical property is good, the connection strength is higher, and the number of parts is favorably reduced. Further, the flue gas flows from one side of the fin base plate 110 to the other side, and the ribs 130 are not parallel to the flow direction of the flue gas. The ribs 130 can play a role in guiding the medium to the vicinity of the water pipe for heat exchange. In addition, the ribs 130 can also disturb flow by media, reduce a boundary layer and enhance heat transfer.

The application provides an efficient stainless steel fin scheme, reduces heat transfer area and material, practices thrift the cost, reduces the temperature rise of cutting off the water supply. In the conventional plate heat exchanger 200, the medium is a refrigerant or water, and the medium in this application may be flue gas. Further, the flue gas flows from one side of the fin base plate 110 to the other side, and the ribs 130 are not parallel to the flow direction of the flue gas. The ribs 130 can play a role in guiding the medium to the vicinity of the water pipe for heat exchange. In addition, the convex ribs 130 can also disturb flow of media, reduce boundary layers and strengthen heat transfer. In the working process, when smoke flows through the fins, the smoke firstly passes through the front end of the fin base plate 110 and then flows through the convex ribs 130, and as the resistance of the convex parts is larger than that of the gaps between the pipe holes 121 and the protrusions, more smoke can flow through the gaps between the pipe holes 121 and the protrusions; the other part of the flue gas flowing through the rib 130 part is influenced by the turbulent flow, and when the rib 130 is crossed, the speed perpendicular to the plane of the fin base plate 110 is generated, so that the heat transfer boundary layer can be thinned, and the heat exchange effect can be enhanced. When the flue gas flows to the pipe holes 121 in the back row, in the same way, one part of the flue gas flows to a position close to the water pipe after being guided, and the other part of the flue gas is beneficial to thinning a boundary layer on the back side part of the fin substrate 110 through turbulent flow, so that the heat transfer effect is further enhanced.

Further, the fin structure 100 further includes a first burring 122 and a burring hole 140. Specifically, the first flanging 122 extends from the tube hole 121 to one side of the fin base plate 110, and by arranging the first flanging 122, a worker can conveniently and quickly connect a water pipe with the tube hole 121, and the connection strength of the tube hole 121 and the water pipe can be improved.

It is worth to be noted that, the first flanging 122 and the fin base plate 110 are of an integrated structure, and compared with a post-processing mode, the mechanical property is good, the connection strength is higher, and the number of parts is favorably reduced.

Further, the flanging holes 140 are disposed on two sides of the fin base plate 110 relative to the flow direction, the number of the flanging holes 140 may be one, two or more, and the flanging holes 140 are flexibly disposed according to actual requirements. Through setting up flanging hole 140, can carry out the water conservancy diversion to the flue gas, make the flue gas can be close to the water pipe as far as, reinforcing heat transfer effect.

EXAMPLE III

As shown in fig. 1 to 4, a fin structure 100 according to an embodiment of the present invention includes a fin base 110, a plurality of tube holes 121, and a plurality of ribs 130. The fin substrate 110 is a plate structure, and may have any shape according to actual requirements. The fin base plate 110 has a plurality of tube holes 121, and the tube holes 121 are provided to be fitted with water tubes, and the plurality of tube holes 121 are provided to simultaneously connect to the plurality of water tubes. Further, a plurality of ribs 130 are disposed on the fin base plate 110, specifically, the ribs 130 are formed by protruding the surface of the fin base plate 110, that is, the ribs 130 and the fin base plate 110 are of an integrated structure, compared with a post-processing mode, the mechanical property is good, the connection strength is higher, and the number of parts is favorably reduced. Further, the flue gas flows from one side of the fin base plate 110 to the other side, and the ribs 130 are not parallel to the flow direction of the flue gas. The ribs 130 can play a role in guiding the medium to the vicinity of the water pipe for heat exchange. In addition, the ribs 130 can also disturb flow by media, reduce a boundary layer and enhance heat transfer.

The application provides an efficient stainless steel fin scheme, reduces heat transfer area and material, practices thrift the cost, reduces the temperature rise of cutting off the water supply. In the conventional plate heat exchanger 200, the medium is a refrigerant or water, and the medium in this application may be flue gas. Further, the flue gas flows from one side of the fin base plate 110 to the other side, and the ribs 130 are not parallel to the flow direction of the flue gas. The ribs 130 can play a role in guiding the medium to the vicinity of the water pipe for heat exchange. In addition, the ribs 130 can also disturb flow by media, reduce a boundary layer and enhance heat transfer. In the working process, when smoke flows through the fins, the smoke firstly passes through the front end of the fin base plate 110 and then flows through the convex ribs 130, and as the resistance of the convex parts is larger than that of the gaps between the pipe holes 121 and the protrusions, more smoke can flow through the gaps between the pipe holes 121 and the protrusions; and the other part of the smoke flowing through the rib 130 is influenced by the turbulent flow, and when the smoke crosses the rib 130, the smoke generates a speed vertical to the plane of the fin base plate 110, so that the heat transfer boundary layer can be thinned, and the heat exchange effect can be enhanced. When the flue gas flows to the pipe holes 121 in the back row, in the same way, one part of the flue gas flows to a position close to the water pipe after being guided, and the other part of the flue gas is beneficial to thinning a boundary layer on the back side part of the fin substrate 110 through turbulent flow, so that the heat transfer effect is further enhanced.

Further, as shown in fig. 2, the fin base plate 110 includes a smoke facing side 151 and a smoke back side 152. Specifically, the smoke flows from the smoke-facing side 151 to the smoke-backing side 152, firstly passes through the front end of the fin base plate 110, and then flows through the convex rib 130, and because the resistance of the convex part is larger than that of the gap between the pipe hole 121 and the convex part, more smoke can flow through the gap between the pipe hole 121 and the convex part; and the other part of the smoke flowing through the rib 130 is influenced by the turbulent flow, and when the smoke crosses the rib 130, the smoke generates a speed vertical to the plane of the fin base plate 110, so that the heat transfer boundary layer can be thinned, and the heat exchange effect can be enhanced. When the flue gas flows to the pipe holes 121 in the back row, in the same way, one part of the flue gas flows to a position close to the water pipe after being guided, and the other part of the flue gas is beneficial to thinning a boundary layer on the back side part of the fin substrate 110 through turbulent flow, so that the heat transfer effect is further enhanced.

Further, the profile of the smoke facing side 151 of the fin substrate 110 is matched with the shape of the tube hole 121, so that the flow guiding and the flow disturbing of smoke are facilitated, and the heat exchange effect is further improved.

In another embodiment, the fin structure 100 further includes a hole slot 160 disposed on the smoke facing side 151 of the fin base 110. Specifically, the number of the hole grooves 160 is at least one, that is, the hole grooves 160 may be one, two, or more, and each hole groove 160 is provided between two pipe holes 121. Through setting up hole groove 160 can avoid the fin dry combustion method to a certain extent, and can play the effect of reposition of redundant personnel.

In another embodiment, the number of the hole slots 160 is plural. The number of the hole grooves 160 is set to be multiple, and the depth of one of the hole grooves 160 is larger than that of the rest hole grooves 160, so that the dry burning of the fins can be further avoided, and the shunting effect is enhanced.

In another embodiment, the larger depth bore slots 160 are provided in the middle of the fin base 110. Through setting up the great hole groove 160 of degree of depth at the middle part of fin base plate 110, when connecting two fin base plates 110, the flue gas of fin base plate 110 both sides can pass through hole groove 160 intercommunication, and then avoids the fin dry combustion method to appear.

Example four

As shown in fig. 1 to 4, a fin structure 100 according to an embodiment of the present invention includes a fin base 110, a plurality of tube holes 121, and a plurality of ribs 130. The fin substrate 110 is a plate structure, and may have any shape according to actual requirements. The fin base plate 110 has a plurality of tube holes 121, and the tube holes 121 are provided to be fitted with water tubes, and the plurality of tube holes 121 are provided to simultaneously connect to the plurality of water tubes. Further, a plurality of ribs 130 are disposed on the fin base plate 110, specifically, the ribs 130 are formed by protruding the surface of the fin base plate 110, that is, the ribs 130 and the fin base plate 110 are of an integrated structure, compared with a post-processing mode, the mechanical property is good, the connection strength is higher, and the number of parts is favorably reduced. Further, the flue gas flows from one side of the fin base plate 110 to the other side, and the ribs 130 are not parallel to the flow direction of the flue gas. The ribs 130 can play a role in guiding the medium to the vicinity of the water pipe for heat exchange. In addition, the ribs 130 can also disturb flow by media, reduce a boundary layer and enhance heat transfer.

The application provides an efficient stainless steel fin scheme, reduces heat transfer area and material, practices thrift the cost, reduces the temperature rise of cutting off the water supply. In the conventional plate heat exchanger 200, the medium is a refrigerant or water, and the medium in this application may be flue gas. Further, the flue gas flows from one side of the fin base plate 110 to the other side, and the ribs 130 are not parallel to the flow direction of the flue gas. The ribs 130 can play a role in guiding flow and guiding the medium to the vicinity of the water pipe for heat exchange. In addition, the ribs 130 can also disturb flow by media, reduce a boundary layer and enhance heat transfer. During operation, when smoke flows through the fins, the smoke firstly passes through the front end of the fin base plate 110 and then flows through the convex rib 130, and as the resistance of the convex part is larger than that of the gap between the pipe hole 121 and the protrusion, more smoke can flow through the gap between the pipe hole 121 and the protrusion; the other part of the flue gas flowing through the rib 130 part is influenced by the turbulent flow, and when the rib 130 is crossed, the speed perpendicular to the plane of the fin base plate 110 is generated, so that the heat transfer boundary layer can be thinned, and the heat exchange effect can be enhanced. When the flue gas flows to the pipe holes 121 in the back row, in the same way, one part of the flue gas flows to a position close to the water pipe after being guided, and the other part of the flue gas is beneficial to thinning a boundary layer on the back side part of the fin substrate 110 through turbulent flow, so that the heat transfer effect is further enhanced.

Further, the fin base 110 includes a smoke facing side 151 and a smoke back side 152. Specifically, the smoke flows from the smoke facing side 151 to the smoke back side 152, firstly passes through the front end of the fin base plate 110, and then flows through the convex rib 130, and because the resistance of the convex part is larger than that of the gap between the tube hole 121 and the convex part, more smoke can flow through the gap between the tube hole 121 and the convex part; and the other part of the smoke flowing through the rib 130 is influenced by the turbulent flow, and when the smoke crosses the rib 130, the smoke generates a speed vertical to the plane of the fin base plate 110, so that the heat transfer boundary layer can be thinned, and the heat exchange effect can be enhanced. When the flue gas flows to the pipe holes 121 in the back row, in the same way, one part of the flue gas flows to a position close to the water pipe after being guided, and the other part of the flue gas is beneficial to thinning a boundary layer on the back side part of the fin substrate 110 through turbulent flow, so that the heat transfer effect is further enhanced.

Further, the profile of the smoke facing side 151 of the fin substrate 110 is matched with the shape of the tube hole 121, so that the flow guiding and the flow disturbing of smoke are facilitated, and the heat exchange effect is improved.

Further, the fin structure 100 further includes a groove 171 disposed on the smoke-backed side 152. Specifically, by adapting the shape of the groove 171 to the shape of the smoke facing side 151, when the two fin base plates 110 are connected, the profile of the front end of one fin base plate 110 can be adapted to the profile of the rear end of the other fin base plate 110, so as to realize continuous stamping and improve the production efficiency.

Further, the fin structure 100 further includes an opening flange 172 provided on the fin base 110. Specifically, the opening flange 172 is located at a position of the groove 171 close to the smoke facing side 151, and an opening of the opening flange 172 faces the smoke back side 152, and when smoke flows from the smoke facing side 151 of the fin base plate 110 to the smoke back side 152, the opening flange 172 can guide the smoke to two sides of the fin base plate 110 and close to the position of the water pipe, in other words, guide the smoke at the outlet, so that the smoke flows around the wake region of the water pipe, and the effect of heat transfer is enhanced.

It is worth to be noted that the opening flange 172 and the fin base plate 110 may be an integral structure, and compared with a post-processing method, the mechanical property is good, the connection strength is higher, and the number of parts is reduced.

EXAMPLE five

As shown in fig. 1 to 4, a fin structure 100 according to an embodiment of the present invention includes a fin base 110, a plurality of tube holes 121, and a plurality of ribs 130. The fin substrate 110 is a plate structure, and may have any shape according to actual requirements. A plurality of pipe holes 121 are provided in the fin base plate 110, and the pipe holes 121 are used to be fitted with water pipes, and the plurality of pipe holes 121 are provided to enable simultaneous connection with the plurality of water pipes. Further, a plurality of ribs 130 are disposed on the fin base plate 110, specifically, the ribs 130 are formed by protruding the surface of the fin base plate 110, that is, the ribs 130 and the fin base plate 110 are of an integrated structure, compared with a post-processing mode, the mechanical property is good, the connection strength is higher, and the number of parts is favorably reduced. Further, the flue gas flows from one side of the fin base plate 110 to the other side, and the ribs 130 are not parallel to the flow direction of the flue gas. The ribs 130 can play a role in guiding the medium to the vicinity of the water pipe for heat exchange. In addition, the ribs 130 can also disturb flow by media, reduce a boundary layer and enhance heat transfer.

The application provides an efficient stainless steel fin scheme, reduces heat transfer area and material, practices thrift the cost, reduces the temperature rise of cutting off the water supply. In the conventional plate heat exchanger 200, the medium is a refrigerant or water, and the medium in this application may be flue gas. Further, the flue gas flows from one side of the fin base plate 110 to the other side, and the ribs 130 are not parallel to the flow direction of the flue gas. The ribs 130 can play a role in guiding the medium to the vicinity of the water pipe for heat exchange. In addition, the ribs 130 can also disturb flow by media, reduce a boundary layer and enhance heat transfer. In the working process, when smoke flows through the fins, the smoke firstly passes through the front end of the fin base plate 110 and then flows through the convex ribs 130, and as the resistance of the convex parts is larger than that of the gaps between the pipe holes 121 and the protrusions, more smoke can flow through the gaps between the pipe holes 121 and the protrusions; and the other part of the smoke flowing through the rib 130 is influenced by the turbulent flow, and when the smoke crosses the rib 130, the smoke generates a speed vertical to the plane of the fin base plate 110, so that the heat transfer boundary layer can be thinned, and the heat exchange effect can be enhanced. When the flue gas flows to the pipe holes 121 in the back row, in the same way, one part of the flue gas flows to a position close to the water pipe after being guided, and the other part of the flue gas is beneficial to thinning a boundary layer on the back side part of the fin substrate 110 through turbulent flow, so that the heat transfer effect is further enhanced.

Further, as shown in fig. 5, the fin structure 100 further includes side cuffs 181. Specifically, the side flanging 181 is arranged on two opposite sides of the fin base plate 110 in the flowing direction of the flue gas, the flue gas flows from the smoke facing side 151 of the fin base plate 110 to the smoke back side 152, the side flanging 181 is arranged on the left side and the right side of the fin base plate 110, and the flue gas flowing to the two sides of the fin base plate 110 can be further guided and disturbed by arranging the side flanging 181, so that the flue gas is close to the water pipe as much as possible, and the heat transfer effect is enhanced.

Further, the angle between the side burring 181 and the fin base 110 is greater than or equal to 90 °. Through setting up the angle that side turn-ups 181 and fin base plate 110 are for being more than or equal to 90, the angle between side turn-ups 181 and the fin base plate 110 is right angle or obtuse angle promptly, at a plurality of fin base plate 110 assembly backs, can form inclosed passageway, in case the leakage of smoke causes the combustion chamber to enclose the frame overtemperature.

EXAMPLE six

As shown in fig. 1 to 4, a fin structure 100 according to an embodiment of the present invention includes a fin base 110, a plurality of tube holes 121, and a plurality of ribs 130. The fin substrate 110 is a plate structure, and may have any shape according to actual requirements. A plurality of pipe holes 121 are provided in the fin base plate 110, and the pipe holes 121 are used to be fitted with water pipes, and the plurality of pipe holes 121 are provided to enable simultaneous connection with the plurality of water pipes. Further, a plurality of ribs 130 are disposed on the fin base plate 110, specifically, the ribs 130 are formed by protruding the surface of the fin base plate 110, that is, the ribs 130 and the fin base plate 110 are of an integrated structure, compared with a post-processing mode, the mechanical property is good, the connection strength is higher, and the number of parts is favorably reduced. Further, the flue gas flows from one side of the fin base plate 110 to the other side, and the ribs 130 are not parallel to the flow direction of the flue gas. The ribs 130 can play a role in guiding the medium to the vicinity of the water pipe for heat exchange. In addition, the ribs 130 can also disturb flow by media, reduce a boundary layer and enhance heat transfer.

The application provides an efficient stainless steel fin scheme, reduces heat transfer area and material, practices thrift the cost, reduces the temperature rise of cutting off the water supply. In the conventional plate heat exchanger 200, the medium is a refrigerant or water, and the medium in this application may be flue gas. Further, the flue gas flows from one side of the fin base plate 110 to the other side, and the ribs 130 are not parallel to the flow direction of the flue gas. The ribs 130 can play a role in guiding the medium to the vicinity of the water pipe for heat exchange. In addition, the ribs 130 can also disturb flow by media, reduce a boundary layer and enhance heat transfer. In the working process, when smoke flows through the fins, the smoke firstly passes through the front end of the fin base plate 110 and then flows through the convex ribs 130, and as the resistance of the convex parts is larger than that of the gaps between the pipe holes 121 and the protrusions, more smoke can flow through the gaps between the pipe holes 121 and the protrusions; and the other part of the smoke flowing through the rib 130 is influenced by the turbulent flow, and when the smoke crosses the rib 130, the smoke generates a speed vertical to the plane of the fin base plate 110, so that the heat transfer boundary layer can be thinned, and the heat exchange effect can be enhanced. When the flue gas flows to the pipe holes 121 in the back row, in the same way, one part of the flue gas flows to a position close to the water pipe after being guided, and the other part of the flue gas is beneficial to thinning a boundary layer on the back side part of the fin substrate 110 through turbulent flow, so that the heat transfer effect is further enhanced.

Further, the fin structure 100 further includes lightening holes 182 provided on the fin base 110. Specifically, the lightening holes 182 penetrate through the fin base plate 110 along the axial direction of the tube hole 121, and the lightening holes 182 are arranged to play a role in lightening; on the other hand, save material, reduce heat transfer area, and then can reduce thermal inertia, possess less temperature rise of cutting off water supply.

EXAMPLE seven

As shown in fig. 1 to 4, a fin structure 100 according to an embodiment of the present invention includes a fin base 110, a plurality of tube holes 121, and a plurality of ribs 130. The fin substrate 110 is a plate structure, and may have any shape according to actual requirements. The fin base plate 110 has a plurality of tube holes 121, and the tube holes 121 are provided to be fitted with water tubes, and the plurality of tube holes 121 are provided to simultaneously connect to the plurality of water tubes. Further, a plurality of ribs 130 are disposed on the fin base plate 110, specifically, the ribs 130 are formed by protruding the surface of the fin base plate 110, that is, the ribs 130 and the fin base plate 110 are of an integrated structure, compared with a post-processing mode, the mechanical property is good, the connection strength is higher, and the number of parts is favorably reduced. Further, the flue gas flows from one side of the fin base 110 to the other side, and the ribs 130 are not parallel to the flow direction of the flue gas. The ribs 130 can play a role in guiding the medium to the vicinity of the water pipe for heat exchange. In addition, the ribs 130 can also disturb flow by media, reduce a boundary layer and enhance heat transfer.

The application provides an efficient stainless steel fin scheme, reduces heat transfer area and material, practices thrift the cost, reduces the temperature rise of cutting off the water supply. In conventional plate heat exchanger, the medium is refrigerant or water, and the medium in this application can be the flue gas. Further, the flue gas flows from one side of the fin base plate 110 to the other side, and the ribs 130 are not parallel to the flow direction of the flue gas. The ribs 130 can play a role in guiding the medium to the vicinity of the water pipe for heat exchange. In addition, the convex ribs 130 can also disturb flow of media, reduce boundary layers and strengthen heat transfer. In the working process, when smoke flows through the fins, the smoke firstly passes through the front end of the fin base plate 110 and then flows through the convex ribs 130, and as the resistance of the convex parts is larger than that of the gaps between the pipe holes 121 and the protrusions, more smoke can flow through the gaps between the pipe holes 121 and the protrusions; and the other part of the smoke flowing through the rib 130 is influenced by the turbulent flow, and when the smoke crosses the rib 130, the smoke generates a speed vertical to the plane of the fin base plate 110, so that the heat transfer boundary layer can be thinned, and the heat exchange effect can be enhanced. When the flue gas flows to the pipe holes 121 in the back row, in the same way, one part of the flue gas flows to a position close to the water pipe after being guided, and the other part of the flue gas is beneficial to thinning a boundary layer on the back side part of the fin substrate 110 through turbulent flow, so that the heat transfer effect is further enhanced.

Further, a plurality of pipe holes 121 are arranged in a staggered manner. Through arranging a plurality of tube holes 121 fork row setting, the tube hole 121 is not all the alignment setting in the direction of arranging or arranging, and this kind of arrangement can improve the disturbance ability to flue gas or other medium, and heat transfer coefficient is big, is favorable to reducing heat transfer area under the same condition, and then is favorable to reducing thermal inertia, has less temperature rise of cutting off water.

Example eight

As shown in fig. 1 to 4, a fin structure 100 according to an embodiment of the present invention includes a fin base 110, a plurality of tube holes 121, and a plurality of ribs 130. The fin substrate 110 is a plate structure, and may have any shape according to actual requirements. The fin base plate 110 has a plurality of tube holes 121, and the tube holes 121 are provided to be fitted with water tubes, and the plurality of tube holes 121 are provided to simultaneously connect to the plurality of water tubes. Further, a plurality of ribs 130 are disposed on the fin base plate 110, specifically, the ribs 130 are formed by protruding the surface of the fin base plate 110, that is, the ribs 130 and the fin base plate 110 are of an integrated structure, compared with a post-processing mode, the mechanical property is good, the connection strength is higher, and the number of parts is favorably reduced. Further, the flue gas flows from one side of the fin base plate 110 to the other side, and the ribs 130 are not parallel to the flow direction of the flue gas. The ribs 130 can play a role in guiding the medium to the vicinity of the water pipe for heat exchange. In addition, the ribs 130 can also disturb flow by media, reduce a boundary layer and enhance heat transfer.

The application provides an efficient stainless steel fin scheme, reduces heat transfer area and material, practices thrift the cost, reduces the temperature rise of cutting off the water supply. In the conventional plate heat exchanger 200, the medium is a refrigerant or water, and the medium in this application may be flue gas. Further, the flue gas flows from one side of the fin base plate 110 to the other side, and the ribs 130 are not parallel to the flow direction of the flue gas. The ribs 130 can play a role in guiding the medium to the vicinity of the water pipe for heat exchange. In addition, the ribs 130 can also disturb flow by media, reduce a boundary layer and enhance heat transfer. In the working process, when smoke flows through the fins, the smoke firstly passes through the front end of the fin base plate 110 and then flows through the convex ribs 130, and as the resistance of the convex parts is larger than that of the gaps between the pipe holes 121 and the protrusions, more smoke can flow through the gaps between the pipe holes 121 and the protrusions; and the other part of the smoke flowing through the rib 130 is influenced by the turbulent flow, and when the smoke crosses the rib 130, the smoke generates a speed vertical to the plane of the fin base plate 110, so that the heat transfer boundary layer can be thinned, and the heat exchange effect can be enhanced. When the flue gas flows to the pipe holes 121 in the back row, in the same way, one part of the flue gas flows to a position close to the water pipe after being guided, and the other part of the flue gas is beneficial to thinning a boundary layer on the back side part of the fin substrate 110 through turbulent flow, so that the heat transfer effect is further enhanced.

Further, the plurality of tube holes 121 are arranged in a row, that is, the tube holes 121 are aligned in one row or one column, which is easy to clean, has low resistance when smoke or other media flows through the fin base plate 110, but has a smaller heat transfer coefficient and a larger heat exchange area than the staggered arrangement under the same condition.

Example nine

As shown in fig. 6, an embodiment of the present invention provides a heat exchanger 200, which includes a heat exchange tube 210 and a plurality of fin structures 100 of any of the above embodiments. Specifically, a plurality of fin structures 100 set up side by side, are favorable to improving the utilization ratio in space, reinforcing heat transfer effect. In addition, as shown in fig. 3, when the fin substrates 110 in the fin structures 100 are spliced with each other, the smoke facing side 151 of one fin substrate 110 is matched with the smoke back side 152 of another fin substrate 110, and because the profile of the smoke facing side 151 of the fin substrate 110 is matched with the shape of the tube hole 121 and the shape of the groove 171 is matched with the shape of the smoke facing side 151, continuous stamping of different fin substrates 110 is facilitated, and the production efficiency is improved.

Further, the plurality of fin bases 110 are adjacently disposed in the axial direction of the tube hole 121 of the fin structure 100. Through the axial adjacent setting with a plurality of fin base plates 110 along tube hole 121 of fin structure 100, the side turn-ups 181 in two adjacent fin structures 100 can laminate each other, forms inclosed passageway to the leak protection cigarette, greatly reduced the combustor enclose the possibility of frame overtemperature.

EXAMPLE ten

As shown in fig. 7, an embodiment of the present invention provides a hot water apparatus 300 including a water tank 310 and a heat exchanger 200. Specifically, the water tank 310 is communicated with the heat exchange pipe 210 in the heat exchanger 200, and the heat exchanger 200 exchanges heat with water flow in the water pipe, that is, heats water in the water pipe according to a preset temperature, so that the heated water can be stored in the water tank 310.

According to the fin structure, the heat exchanger and the hot water device, on one hand, the overall strength of the fin base plate can be improved, compared with a conventional stainless steel fin, the same effect can be achieved by adopting thinner materials, the use of the materials is reduced, the cost can be reduced, the thermal inertia of the heat exchanger can be reduced, and smaller water cut-off temperature rise can be obtained; on the other hand, the turbulent flow of the smoke or other media can be enhanced, the excessive media are prevented from being gathered on the surface of the fin substrate, the boundary layer between the media and the fins is thinned, and the heat transfer effect is enhanced; moreover, the convex ribs can increase the heat exchange area and improve the heat exchange capacity of the heat exchanger.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit referred to must have a specific direction, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (15)

1. A fin structure, comprising:

a fin substrate;

a plurality of tube holes arranged on the fin base plate;

a plurality of ribs arranged on the fin base plate and protruding to one side of the fin base plate,

the smoke flows from one side of the fin base plate to the other side, and the convex ribs are not parallel to the flow direction of the smoke.

2. The fin structure according to claim 1, further comprising:

the first flanging extends from the tube hole to one side of the fin base plate;

flanging holes which are arranged on the two sides of the fin base plate relative to the flowing direction,

the extending direction of the flanging hole is the same as that of the first flanging.

3. The fin structure according to claim 1, wherein the fin base includes a smoke facing side from which the smoke flows toward the smoke back side and a smoke back side,

wherein, the profile of the smoke facing side of the fin base plate is matched with the shape of the pipe hole.

4. The fin structure according to claim 3, further comprising:

the at least one hole groove is formed in the smoke facing side of the fin base plate, and each hole groove is formed between two pipe holes.

5. The fin structure according to claim 4, wherein the number of the hole grooves is plural, and a depth of one of the plurality of the hole grooves is larger than depths of the remaining hole grooves.

6. The fin structure according to claim 5, wherein the hole groove having a greater depth is provided in a middle portion of the fin base.

7. The fin structure according to claim 3, further comprising:

the groove is arranged on the smoke-back side, and the shape of the groove is matched with that of the smoke-facing side.

8. The fin structure according to claim 7, further comprising:

an opening flanging which is arranged on the fin base plate and is arranged at the position of the groove close to the smoke facing side,

wherein, the opening of the opening flanging faces the smoke-back side.

9. The fin structure according to claim 1, further comprising:

and the side flanging is arranged on two opposite sides of the fin base plate along the flowing direction.

10. The fin structure according to claim 9, wherein the angle between the side-burring and the fin base is greater than or equal to 90 °.

11. The fin structure according to claim 1, comprising:

and the lightening holes are arranged on the fin base plate and penetrate through the fin base plate along the axial direction of the tube holes.

12. The fin structure according to claim 1,

a plurality of the pipe holes are arranged in a staggered manner; or

The pipe holes are arranged in parallel.

13. A heat exchanger, comprising:

a heat exchange pipe;

a plurality of fin structures according to any one of claims 1 to 12, the plurality of fin structures being arranged side by side.

14. The heat exchanger of claim 13,

a plurality of fin base plates of the fin structure are adjacently arranged along the axial direction of the tube holes of the fin structure,

and the side edges of two adjacent fin structures are attached to each other.

15. A water heating apparatus, comprising:

a water tank;

a heat exchanger as claimed in claim 13 or 14, wherein the water tank communicates with a heat exchange tube in the heat exchanger.

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