Heat exchange component, heat exchanger, and waste heat collection apparatus

Abstract

The present invention relates to the field of heating, and provides a heat exchange component, a heat exchanger, and a waste heat collection apparatus. The heat exchange component includes at least three fins. The fins are arranged in parallel. Starting from the first fin, every two adjacent fins are used as one group, and two longitudinal or horizontal edges of each group of fins are hermetically connected to form a longitudinal or horizontal through channel. Starting from the second fin, every two adjacent fins are used as one group, and two horizontal or longitudinal edges of each group of fins are hermetically connected to form a horizontal or longitudinal through channel. The longitudinal through channel and the horizontal through channel are not communicated with each other. The heat exchanger includes the foregoing heat exchange component. The waste heat collection apparatus includes the foregoing heat exchanger. Therefore, the following effects are implemented: A contact area between a heat source and a heat collection medium is increased, a conduction distance of heat in the heat collection medium is shortened, a contact area of a heat output surface is increased, and heat conduction efficiency of the heat exchange component is integrally improved.

Description

TECHNICAL FIELD

[0001] The present invention relates to the field of heating, and specifically, to a heat exchange component, a heat exchanger, and a waste heat collection apparatus.BACKGROUND

[0002] In the conventional technology, a combustion-type heater mainly generates heat through fuel combustion. The combustion-type heater is an apparatus used for cold-proof and heating, and has features of lightweight and flexibility. Therefore, the combustion-type heater is widely applied to the industrial and household fields. The combustion-type heater generates flue gas in a process of heating through fuel combustion, and the flue gas is usually discharged outdoors through a chimney. However, a large amount of heat is taken away in a flue gas exhaust process, resulting in low utilization of the heat generated by the combustion-type heater through combustion, and low fuel utilization. This is not conducive to energy conservation and environmental protection.

[0003] An existing heat recovery apparatus, for example, a heat recovery apparatus in CN117232002A, collects heat by using a heat collection rod, and then takes away heat on the heat collection rod by using a fluid, so that the heat is reused. Such an apparatus has good recovery efficiency, and implements a function of secondary heat recovery in comparison with a conventional apparatus. However, a conduction manner in which the heat collection rod collects the heat, conducts the heat to an end part of the heat collection rod, and then conducts the heat to a heat exchange surface has the following technical problems: 1. A contact area between the heat collection rod and flue gas is small. 2. A conduction distance of the heat on the heat collection rod is long. 3. A contact area between the heat collection rod and the heat exchange surface is small. These problems limit heat conduction efficiency in various aspects.SUMMARY

[0004] To resolve the foregoing technical problems, the present invention provides a heat exchange component, a heat exchanger, and a waste heat collection apparatus, to increase a contact area between flue gas and a heat collection medium, shorten a conduction distance of heat in the heat collection medium, and increase a contact area of a heat output surface, thereby improving heat conduction efficiency of the heat exchange component.

[0005] According to the present invention, a technical solution whose subject matter is a heat exchange component is provided as follows: A heat exchange component includes at least three fins, where the fins are arranged in parallel, starting from the first fin, every two adjacent fins are used as one group, and two longitudinal or horizontal edges of each group of fins are hermetically connected to form a longitudinal or horizontal through channel; starting from the second fin, every two adjacent fins are used as one group, and two horizontal or longitudinal edges of each group of fins are hermetically connected to form a horizontal or longitudinal through channel; and the longitudinal through channel and the horizontal through channel are not communicated with each other.

[0006] According to the foregoing technical solution, one surface of the fin is used as a heat collection surface to collect heat in flue gas, to increase a contact area between the flue gas and the heat collection surface; the other surface of the fin is used as a heat dissipation surface to increase a heat dissipation area; and the fin is a thin sheet that conducts the heat from one surface to the other surface, to shorten a heat conduction distance. This technical solution improves heat conduction efficiency from the foregoing three aspects.

[0007] Preferably, at least one bump or at least one dimple is formed on the fin.

[0008] According to the foregoing technical solution, a contact area between the heat collection surface and the heat dissipation surface is also increased, and a residence time of the flue gas in the heat exchange component is also prolonged, thereby further improving heat conduction efficiency.

[0009] Preferably, at least one bump and at least one dimple are formed on the fin.

[0010] According to the foregoing technical solution, the bump and the dimple simultaneously exist, thereby further improving heat conduction efficiency.

[0011] Preferably, a quantity of bumps or dimples formed on the fin is a multiple of 3.

[0012] According to the foregoing technical solution, a layout of the bump and the dimple on the fin is more reasonable.

[0013] According to the present invention, another technical solution whose subject matter is a heat exchanger is provided as follows: A heat exchanger includes the foregoing heat exchange component and a heat exchanger housing, where the heat exchanger housing is configured to accommodate the heat exchange component and is used for seal in a direction parallel to the fins.

[0014] According to the foregoing technical solution, sealing performance of the heat exchanger is improved.

[0015] The heat exchanger housing includes two partition boards and a bracket, the bracket is separately connected to the two partition boards, the two partition boards are separately parallel to the fins, one of the partition boards is connected to the first fin, and the other of the partition boards is connected to the last fin.

[0016] According to the foregoing technical solution, mechanical strength and sealing performance of the heat exchanger are improved.

[0017] According to the present invention, another technical solution whose subject matter is a waste heat collection apparatus is provided as follows: A waste heat collection apparatus includes a flue gas exhaust part, a heat recovery part, and the foregoing heat exchanger, where the flue gas exhaust part includes an upper flue gas exhaust pipe and a lower flue gas exhaust pipe, the heat recovery part includes a fan and a heat recovery pipeline, the longitudinal through channel in the heat exchanger is separately communicated with the upper flue gas exhaust pipe and the lower flue gas exhaust pipe, and the horizontal through channel in the heat exchanger is separately communicated with the fan and the heat recovery pipeline.

[0018] According to the foregoing technical solution, an effect of collecting and recovering heat in flue gas obtained through combustion is implemented.

[0019] Preferably, a first flue gas hood is disposed at a connection part between the upper flue gas exhaust pipe and the heat exchanger.

[0020] According to the foregoing technical solution, the first flue gas hood can prevent the flue gas from entering a heating space when being discharged.

[0021] Preferably, a second flue gas hood is disposed at a connection part between the lower flue gas exhaust pipe and the heat exchanger.

[0022] According to the foregoing technical solution, the second flue gas hood can prevent the flue gas from entering a heating space when being discharged.

[0023] Preferably, a buffer cavity is disposed between the heat exchanger and the heat recovery pipeline.

[0024] According to the foregoing technical solution, the buffer cavity is configured to perform buffering when the heat is transferred from the heat exchanger to the heat recovery pipeline, to prevent a heat recovery effect from being reduced because the heat returns back to the heat exchanger when being aggregated.

[0025] The waste heat collection apparatus is applied to a combustion-type heater. The lower flue gas exhaust pipe is communicated with a flue gas exhaust port of the combustion-type heater, and the heat recovery pipeline is communicated with an air inlet pipeline of the combustion-type heater.

[0026] According to the foregoing technical solution, the flue gas generated by the combustion-type heater passes through the longitudinal through channel, so that the heat is absorbed by the fins when the flue gas passes through the fins. A fan is mounted in a direction of the horizontal through channel, to take away the heat from the fins, so that hot air is formed and enters the heating space. A same fin is commonly used for effective isolation between a flue gas space and a hot air space. Therefore, a heat recovery effect is good with a small loss and high efficiency.

[0027] Beneficial effects of the present invention are as follows: A contact area between a heat source and a heat collection medium is increased, a conduction distance of heat in the heat collection medium is shortened, and a contact area of a heat output surface is increased, thereby integrally improving heat conduction efficiency of the heat exchange component.BRIEF DESCRIPTION OF DRAWINGS

[0028] To describe the technical solutions in the embodiments of the present invention more clearly, the following briefly describes the accompanying drawings required for the descriptions in the embodiments. Clearly, the accompanying drawings in the following descriptions merely show some embodiments of the present invention, and a person of ordinary skill in the art may still obtain other accompanying drawings from these accompanying drawings without creative efforts. FIG. 1 is a schematic diagram of a structure of a heat exchange component; FIG. 2 is an enlarged view of a part A of FIG. 1; FIG. 3 is a front view of a heat exchange component; FIG. 4 is a top view of a heat exchange component; FIG. 5 is a schematic diagram of a structure of the first fin; FIG. 6 is a schematic diagram of a structure of the second fin; FIG. 7 is an exploded view of a heat exchanger; FIG. 8 is a schematic diagram of a structure of a waste heat collection apparatus; and FIG. 9 is a schematic exploded view of a part of a waste heat collection apparatus.

[0029] 1-heat exchange component; 11-first fin; 12-second fin; 13-horizontal through channel; 14-longitudinal through channel; 15-bump; 16-dimple; 2-heat exchanger; 21-two partition boards; 22-bracket; 23-right-angled partition board; 3-flue gas exhaust part; 31-upper flue gas exhaust pipe; 32-lower flue gas exhaust pipe; 33-first flue gas hood; 34-second flue gas hood; 35-connection frame; 4-heat recovery part; 41-fan; 42-heat recovery pipeline; 43-buffer cavity; and 44-connection pipeline.DESCRIPTION OF EMBODIMENTS

[0030] To make the foregoing objectives, features, and advantages of the present invention more obvious and easy to understand, the following describes specific implementations of the present invention in detail with reference to the accompanying drawings of the specification. In the following descriptions, many specific details are described to facilitate full understanding of the present invention. However, the present invention may also be implemented in another manner different from those described herein, and a person skilled in the art may make similar promotion without violating a connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Next, "one embodiment" or "embodiment" referred to herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. "In one embodiment" appearing in different parts in the specification does not refer to a same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.Embodiment 1

[0032] As shown in FIG. 1 to FIG. 6, a heat exchange component 1 includes at least three fins, where the fins are arranged in parallel, starting from the first fin 11, every two adjacent fins are used as one group, and two longitudinal or horizontal edges of each group of fins are hermetically connected to form a longitudinal or horizontal through channel; starting from the second fin 12, every two adjacent fins are used as one group, and two horizontal or longitudinal edges of each group of fins are hermetically connected to form a horizontal or longitudinal through channel; and the longitudinal through channel and the horizontal through channel are not communicated with each other.

[0033] One surface of the fin is used as a heat collection surface to collect heat in flue gas, to increase a contact area between the flue gas and the heat collection surface; the other surface of the fin is used as a heat dissipation surface to increase a heat dissipation area; and the fin is a thin sheet that conducts the heat from one surface to the other surface, to shorten a heat conduction distance. This technical solution improves heat conduction efficiency from the foregoing three aspects.

[0034] At least one bump 15 or at least one dimple 16 is uniformly distributed on the fin. In addition, a contact area between the heat collection surface and the heat dissipation surface is also increased, and a residence time of the flue gas in the heat exchange component is also prolonged, thereby further improving heat conduction efficiency. This makes a layout of the bump and the dimple on the fin more reasonable.Embodiment 2

[0035] A heat exchange component 1 includes three fins, and the fins are arranged in parallel.

[0036] Two horizontal edges of the first fin 11 and the second fin 12 are hermetically connected to form a horizontal through channel 13.

[0037] Two longitudinal edges of the second fin 12 and the third fin are hermetically connected to form a longitudinal through channel 14, where a structure of the third fin is the same as that of the first fin 11.

[0038] The horizontal through channel 13 and the longitudinal through channel 14 are not communicated with each other.

[0039] Six bumps 15 or six dimples 16 are uniformly distributed on the fin.Embodiment 3

[0040] A heat exchange component 1 includes four fins.

[0041] Two horizontal edges of the first fin 11 and the second fin 12 are hermetically connected to form a horizontal through channel 13.

[0042] Two horizontal edges of the third fin and the fourth fin are hermetically connected to form a horizontal through channel 13, where a structure of the third fin is the same as that of the first fin 11, and a structure of the fourth fin is the same as that of the second fin 12.

[0043] Two longitudinal edges of the second fin 12 and the third fin are hermetically connected to form a longitudinal through channel 14.

[0044] The horizontal through channel 13 and the longitudinal through channel 14 are not communicated with each other.

[0045] The rest is the same as those in Embodiment 2.Embodiment 4

[0046] A heat exchange component 1 includes five fins.

[0047] Two horizontal edges of the first fin 11 and the second fin 12 are hermetically connected to form a horizontal through channel 13.

[0048] Two horizontal edges of the third fin and the fourth fin are hermetically connected to form a horizontal through channel 13, where a structure of the third fin is the same as that of the first fin 11, and a structure of the fourth fin is the same as that of the second fin 12.

[0049] Two longitudinal edges of the second fin 12 and the third fin are hermetically connected to form a longitudinal through channel 14.

[0050] Two longitudinal edges of the fourth fin and the fifth fin are hermetically connected to form a longitudinal through channel 14, where a structure of the fifth fin is the same as that of the first fin.

[0051] The horizontal through channel 13 and the longitudinal through channel 14 are not communicated with each other.

[0052] The rest is the same as those in Embodiment 2.Embodiment 5

[0053] As shown in FIG. 7, a heat exchanger 2 includes a heat exchange component 1 and a heat exchanger housing, where the heat exchange component uses the heat exchange component described in Embodiment 1.

[0054] The heat exchanger housing includes two partition boards 21 and a bracket 22. The bracket 22 is separately connected to the two partition boards 21, and the bracket 22 and the two partition boards 21 form a cavity to accommodate the heat exchange component, thereby improving overall structural strength of the heat exchanger.

[0055] The two partition boards 21 are separately parallel to the fins, one of the partition boards is connected to the first fin, and the other of the partition boards is connected to the last fin.

[0056] A right-angled partition board 23 is mounted on the bracket 22, and the right-angled partition board is configured to isolate the horizontal through channel 13 from the longitudinal through channel 14 at a corner.Embodiment 6

[0057] As shown in FIG. 8 and FIG. 9, a waste heat collection apparatus on a combustion-type heater includes a flue gas exhaust part 3, a heat recovery part 4, and a heat exchanger 2. The heat exchanger 2 uses the heat exchanger used in Embodiment 5.

[0058] The flue gas exhaust part 3 includes an upper flue gas exhaust pipe 31 and a lower flue gas exhaust pipe 32. The longitudinal through channel 14 in the heat exchanger 2 is separately communicated with the upper flue gas exhaust pipe 31 and the lower flue gas exhaust pipe 32, the upper flue gas exhaust pipe 31 is located above the heat exchanger 2, and the lower flue gas exhaust pipe 32 is located below the heat exchanger 2. The lower flue gas exhaust pipe 32 is communicated with a flue gas exhaust port of the combustion-type heater.

[0059] A first flue gas hood 33 is disposed at a connection part between the upper flue gas exhaust pipe 31 and the heat exchanger 2. A second flue gas hood 34 is disposed at a connection part between the lower flue gas exhaust pipe 32 and the heat exchanger 2.

[0060] The heat recovery part 4 includes a fan 41 and a heat recovery pipeline 42. The horizontal through channel 13 in the heat exchanger 2 is separately communicated with the fan 41 and the heat recovery pipeline 42. The fan 41 is located on one side of the heat exchanger 2, and the heat recovery pipeline 42 is located on the other side opposite to the fan 41. The fan 41 may blow external air into the horizontal through channel 13, so that the external air enters the heat recovery pipeline 42 after being subjected to heat exchange in the horizontal through channel 13. The heat recovery pipeline 42 is communicated with an air inlet pipeline of the combustion-type heater.

[0061] A buffer cavity 43 is disposed between the heat exchanger 2 and the heat recovery pipeline 42. The buffer cavity 43 is configured to perform buffering when the heat is transferred from the heat exchanger 2 to the heat recovery pipeline 42, to prevent a heat recovery effect from being reduced because the heat returns back to the heat exchanger 2 when being aggregated.

[0062] A connection frame 35 is disposed at a bottom part of the flue gas exhaust part 3, and the connection frame 35 is configured to connect the waste heat collection apparatus to the combustion-type heater.

[0063] A connection pipeline 44 is disposed on the heat recovery pipeline 42, and the connection pipeline 44 is configured to be connected to a pipeline of the combustion-type heater.

[0064] It should be noted that the foregoing embodiments are merely intended to describe, but are not intended to limit, the technical solutions of the present invention. Although the present invention is described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that modifications or equivalent replacements may be made to the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention, and these modifications or equivalent replacements shall fall within the scope of the claims of the present invention.

Claims

1. A heat exchange component, comprising at least three fins, wherein the fins are arranged in parallel, starting from the first fin, every two adjacent fins are used as one group, and two longitudinal or horizontal edges of each group of fins are hermetically connected to form a longitudinal or horizontal through channel; starting from the second fin, every two adjacent fins are used as one group, and two horizontal or longitudinal edges of each group of fins are hermetically connected to form a horizontal or longitudinal through channel; and the longitudinal through channel and the horizontal through channel are not communicated with each other.

2. The heat exchange component according to claim 1, wherein at least one bump or at least one dimple is formed on the fin.

3. The heat exchange component according to claim 1 or 2, wherein a quantity of bumps or dimples formed on the fin is a multiple of 3.

4. A heat exchanger, comprising the heat exchange component according to any one of claims 1 to 3 and a heat exchanger housing, wherein the heat exchanger housing is configured to accommodate the heat exchange component and is used for seal in a direction parallel to the fins.

5. The heat exchanger according to claim 4, wherein the heat exchanger housing comprises two partition boards and a bracket, the bracket is separately connected to the two partition boards, the two partition boards are separately parallel to the fins, one of the partition boards is connected to the first fin, and the other of the partition boards is connected to the last fin.

6. A waste heat collection apparatus, comprising a flue gas exhaust part, a heat recovery part, and the heat exchanger according to claim 4 or 5, wherein the flue gas exhaust part comprises an upper flue gas exhaust pipe and a lower flue gas exhaust pipe, the heat recovery part comprises a fan and a heat recovery pipeline, the longitudinal through channel in the heat exchanger is separately communicated with the upper flue gas exhaust pipe and the lower flue gas exhaust pipe, and the horizontal through channel in the heat exchanger is separately communicated with the fan and the heat recovery pipeline.

7. The waste heat collection apparatus according to claim 6, wherein a first flue gas hood is disposed at a connection part between the upper flue gas exhaust pipe and the heat exchanger.

8. The waste heat collection apparatus according to claim 6 or 7, wherein a second flue gas hood is disposed at a connection part between the lower flue gas exhaust pipe and the heat exchanger.

9. The waste heat collection apparatus according to any one of claim 6 to 8, wherein a buffer cavity is disposed between the heat exchanger and the heat recovery pipeline.

10. The waste heat collection apparatus according to any one of claims 6 to 9, applied to a combustion-type heater, wherein the lower flue gas exhaust pipe is communicated with a flue gas exhaust port of the combustion-type heater, and the heat recovery pipeline is communicated with an air inlet pipeline of the combustion-type heater.

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