CN219178342U

CN219178342U - Heat exchanger and gas water heater

Info

Publication number: CN219178342U
Application number: CN202222969371.3U
Authority: CN
Inventors: 刘志; 刘云; 孙运磊; 赵言辉
Original assignee: Qingdao Economic And Technology Development District Haier Water Heater Co ltd; Zhengzhou Haier New Energy Technology Co ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Economic And Technology Development District Haier Water Heater Co ltd; Zhengzhou Haier New Energy Technology Co ltd; Haier Smart Home Co Ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-06-13
Anticipated expiration: 2032-11-08

Abstract

The utility model discloses a heat exchanger and a gas water heater, wherein the heat exchanger comprises: the heat exchange tubes are flat tubes, the heat exchange tubes are arranged side by side, and flat surfaces of two adjacent heat exchange tubes are arranged oppositely; the heat exchange plates are provided with a plurality of assembly holes, the surfaces of the heat exchange plates are also provided with air turbulence components, the air turbulence components are arranged between two adjacent assembly holes, and a plurality of heat exchange plates are arranged side by side; wherein, the heat exchange tube is installed in the assembly hole. The heat exchange area of the vertical face is increased by adopting the flat tube type heat exchange tube, the heat exchange time between the smoke and the heat exchange tube is prolonged by adding the air turbulence part on the heat exchange plate, the use amount of the heat exchange plate is reduced, the manufacturing cost is reduced, the heat exchange efficiency is improved, and the wind resistance to air flow is reduced to ensure that the gas water heater is fully combusted.

Description

Heat exchanger and gas water heater

Technical Field

The utility model belongs to the technical field of household appliances, and particularly relates to a heat exchanger and a gas water heater.

Background

At present, the water heater is a household appliance commonly used in daily life of people. The water heater is classified into a gas water heater, an electric water heater, and the like, wherein the gas water heater is widely used because of its convenient use. Conventional gas water heaters typically include a burner that combusts gas in the combustion chamber to heat water flowing through the heat exchanger, a combustion chamber, a heat exchanger, and a smoke collection cover, where the smoke is discharged outdoors by a fan in the smoke collection cover.

Heat exchangers in gas water heaters are important components, and generally include heat exchange tubes and heat exchange fins disposed on the heat exchange tubes. In order to increase the heat exchange efficiency, the number of heat exchange plates is generally increased, so that on one hand, the cost is increased, on the other hand, the denser heat exchange plates can generate larger wind resistance, pressure is brought to a fan, and the air-fuel ratio is reduced to cause insufficient combustion.

In view of this, how to design a technology for reducing manufacturing cost, improving heat exchange efficiency and reducing wind resistance generated to air flow to ensure sufficient combustion of a gas water heater is a technical problem to be solved by the present utility model.

Disclosure of Invention

The utility model provides a heat exchanger and a gas water heater, which increase the heat exchange area of a vertical surface by adopting a flat tube type heat exchange tube, and increase an air turbulence part on a heat exchange plate to prolong the heat exchange time between smoke and the heat exchange tube, reduce the use amount of the heat exchange plate so as to reduce the manufacturing cost and improve the heat exchange efficiency, and lighten the windage generated on air flow so as to ensure the gas water heater to fully burn.

In order to achieve the technical purpose, the utility model is realized by adopting the following technical scheme:

in one aspect, the present utility model provides a heat exchanger comprising:

the heat exchange tubes are flat tubes, the heat exchange tubes are arranged side by side, and flat surfaces of two adjacent heat exchange tubes are arranged oppositely;

the heat exchange plates are provided with a plurality of assembly holes, the surfaces of the heat exchange plates are also provided with air turbulence components, the air turbulence components are arranged between two adjacent assembly holes, and a plurality of heat exchange plates are arranged side by side;

wherein, the heat exchange tube is installed in the assembly hole.

In an embodiment of the present application, a plurality of heat exchange tubes are connected to form a water flow channel;

the heat exchanger further comprises a water inlet pipe and a water outlet pipe, and the water flow channel is connected between the water inlet pipe and the water outlet pipe.

In an embodiment of the present application, the end portions of two adjacent heat exchange tubes are mutually communicated through a waterway communication member.

In an embodiment of the present application, the waterway communication piece is an elbow, and the heat exchange tubes are sequentially communicated through the elbow.

In an embodiment of the application, the waterway communication piece includes first water tank and second water tank, be provided with at least a first intercommunication cavity on the first water tank, the second water tank is provided with inlet chamber, play water cavity and at least a second intercommunication cavity, inlet tube intercommunication inlet chamber, outlet pipe intercommunication play water cavity, the heat exchange tube sets up first water tank with between the second water tank, one of them heat exchange tube with inlet chamber intercommunication, another heat exchange tube with play water cavity intercommunication, at least a pair of the heat exchange tube passes through first intercommunication cavity intercommunication, at least a pair of the heat exchange tube passes through second intercommunication cavity intercommunication.

In an embodiment of the present application, the air spoiler comprises a spoiler protrusion, the spoiler protrusion protrudes out of the surface of the heat exchange plate, and the spoiler protrusion is located between two adjacent assembly holes.

In an embodiment of the present application, the air spoiler comprises a spoiler, the spoiler is arranged on the upper portion of the heat exchange plate, and the spoiler is an arc-shaped plate structure recessed downwards.

In an embodiment of the present application, the heat exchange tube and the heat exchange plate are made of copper or stainless steel.

In an embodiment of the present application, a water flow turbulence member is further disposed in the heat exchange tube, and the water flow turbulence member is disposed along a length direction of the heat exchange tube, and is configured to disturb water flowing through the heat exchange tube to form a vortex.

In this application an embodiment, rivers vortex part includes mounting panel, a plurality of first guide vane and a plurality of second guide vane, first guide vane sets up the upper portion of mounting panel, the second guide vane sets up the lower part of mounting panel, first guide vane with the second guide vane is followed the rivers direction slope orientation of heat exchange tube the tip of mounting panel extends.

In one embodiment of the present application, the first guide vanes and the second guide vanes are alternately arranged at intervals on the mounting plate.

The utility model also provides a gas water heater, comprising:

a housing;

a burner for combusting a fuel gas;

the heat exchanger adopts the heat exchanger;

wherein the burner and the heat exchanger are arranged in the housing, the burner being arranged at the bottom of the heat exchanger.

Through designing the heat exchange tube into flat pipe to make the heat exchange tube longitudinal arrangement, the flat face opposite arrangement of two adjacent heat exchange tubes increases the heat transfer area of heat exchange tube, and then effectual improvement heat exchange efficiency, in addition, increase air spoiler spare on the heat exchanger fin, air spoiler spare can produce the disturbance with the flue gas that flows through between two heat exchange tubes, in order to prolong the time of flue gas and heat exchange tube heat exchange, like this, alright reduce the use amount of heat exchanger fin in order to reduce manufacturing cost and improve heat exchange efficiency, lighten the windage that produces the air current in order to ensure gas heater fully burns.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic diagram of a heat exchanger according to an embodiment of the present utility model;

FIG. 2 is a second schematic diagram of a heat exchanger according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of an embodiment of a heat exchanger of the present utility model;

FIG. 4 is a cross-sectional view of the heat exchange tube of FIG. 1;

FIG. 5 is a schematic view of the turbulence member of FIG. 1;

FIG. 6 is a schematic view of the heat exchanger plate of FIG. 1;

FIG. 7 is a schematic diagram of a gas water heater according to an embodiment of the utility model.

Reference numerals illustrate:

a heat exchange tube 1;

a heat exchange plate 2;

a fitting hole 21 and an air spoiler 22;

a spoiler protrusion 221, a spoiler 222;

a water inlet pipe 3;

a water outlet pipe 4;

a waterway communication piece 5;

a first water tank 51, a second water tank 52, a baffle 53;

a first communication chamber 511, a water inlet chamber 521, a water outlet chamber 522, and a second communication chamber 523;

a water flow turbulence member 6;

mounting plate 61, first guide vane 62, second guide vane 63, through hole 64, turn-ups 65.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the description of the present utility model, terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

The gas water heater adopts gas as main energy material, and the high temperature heat generated by combustion of the gas is transferred to cold water flowing through a heat exchanger to achieve the purpose of preparing hot water.

Gas water heaters typically include a housing, and a burner, heat exchanger, fan, and smoke collection hood disposed within the housing.

The gas is conveyed to the burner, and is ignited by the ignition device, so that the burner combusts the conveyed gas, and heat is further generated.

The heat exchanger is internally provided with a heat exchange tube, one end of the heat exchange tube is communicated with a water supply pipeline, and the other end of the heat exchange tube is communicated with a shower head or a tap.

The heat generated by the combustion of the fuel gas by the burner is used for heating the heat exchange tube so as to raise the water temperature in the heat exchange tube to form hot water.

When the gas water heater works, cold water provided by the water supply pipeline flows into the heat exchange pipe, is heated into hot water by the heating source generated by the burner, and flows out of the shower head or the water tap through the hot water valve for users to use.

Meanwhile, in the operation of the gas water heater, the fans are electrified and run simultaneously, and under the action of the fans, the flue gas generated by the burner is discharged outdoors.

In a first embodiment, as shown in fig. 1 to 6, the present embodiment proposes a heat exchanger, including:

the heat exchange tubes 1 are flat tubes, the heat exchange tubes 1 are arranged side by side, and flat surfaces of two adjacent heat exchange tubes 1 are oppositely arranged;

the heat exchange plates 2 are provided with a plurality of assembly holes 21, the surfaces of the heat exchange plates 2 are also provided with air turbulence members 22, the air turbulence members 22 are arranged between two adjacent assembly holes 21, and a plurality of heat exchange plates 2 are arranged side by side; wherein the heat exchange tube 1 is mounted in the mounting hole 21.

Specifically, the heat exchange tube 1 adopted in the heat exchanger in this embodiment is a flat tube, and the flat surfaces of the heat exchange tube 1 are vertically arranged, so that the heat exchange area of the heat exchange tube 1 can be effectively increased. For two adjacent heat exchange tubes 1, a space for flue gas to flow is formed between the two heat exchange tubes 1, and the flat surfaces of the heat exchange tubes 1 can be fully contacted with the flue gas, so that the heat exchange efficiency of the heat exchange tubes 1 is improved.

And for the heat exchange plate 2, the heat exchange plate 2 is provided with the assembly holes 21, and the assembly holes 21 are vertical strip holes, so that the installation requirement of the flat heat exchange tube 1 is met. Meanwhile, the air turbulence component 22 arranged on the heat exchange plate 2 is arranged between the two heat exchange tubes 1, when the smoke flows between the two heat exchange tubes 1, the air turbulence component 22 will generate turbulence operation on the smoke, so that the time of heat exchange of the smoke between the two heat exchange tubes 1 can be prolonged, and the heat exchange amount between the smoke and the heat exchange tubes 1 can be further improved. Like this, alright make the flue gas can carry out abundant heat transfer with heat exchange tube 1, under the prerequisite that satisfies the heat transfer volume, can reduce the quantity of heat exchanger fin 2 that sets up on the heat exchange tube 1.

In one embodiment of the present application, a plurality of heat exchange tubes 1 are connected to form a water flow channel; the heat exchanger further comprises a water inlet pipe 3 and a water outlet pipe 4, and the water flow channel is connected between the water inlet pipe 3 and the water outlet pipe 4.

Specifically, in the actual use process of the heat exchanger, water flow enters the heat exchanger for heat exchange and heating. Wherein water flow enters each heat exchange tube 1, and a plurality of heat exchange tubes 1 in the heat exchanger are connected with each other to form a water flow channel. In this way, the water flow flows through the heat exchange tubes 1, and the heat of the flue gas is absorbed by the heat exchange tubes 1 to heat the water flow. The heat exchanger is provided with a water inlet pipe 3 and a water outlet pipe 4, water flow entering the water heater is led into the heat exchange pipe 1 of the heat exchanger through the water inlet pipe 3, and water heated by the heat exchange pipe 1 is output through the water outlet pipe 4.

In one embodiment of the present application, the ends of two adjacent heat exchange tubes 1 are mutually communicated through the waterway communication member 5.

Specifically, for the communication mode between the plurality of heat exchange tubes 1, the corresponding ends of the two adjacent heat exchange tubes 1 may be communicated through the waterway communication member 5. The water flows between the two heat exchange pipes 1 through the waterway communication piece 5 so as to ensure that the plurality of heat exchange pipes 1 are mutually communicated to form a water flow channel.

The water path communicating member 5 may have various structural forms.

For example: in one embodiment, the waterway communication member 5 is a bent pipe, and the plurality of heat exchange tubes 1 are sequentially communicated through the bent pipe. Specifically, the waterway communication piece 5 adopts the bent pipe to realize the connection of the two heat exchange pipes 1 needing to be communicated, so as to meet the requirement of water flow flowing between the two heat exchange pipes 1.

In another embodiment, the waterway communication piece 5 includes a first water tank 51 and a second water tank 52, at least one first communication cavity 511 is disposed on the first water tank 51, the second water tank 52 is provided with a water inlet cavity 521, a water outlet cavity 522 and at least one second communication cavity 523, the water inlet pipe 3 is communicated with the water inlet cavity 521, the water outlet pipe 4 is communicated with the water outlet cavity 522, the heat exchange tube 1 is disposed between the first water tank 51 and the second water tank 52, one heat exchange tube 1 is communicated with the water inlet cavity 521, the other heat exchange tube 1 is communicated with the water outlet cavity 522, at least one pair of heat exchange tubes 1 is communicated through the first communication cavity 511, and at least one pair of heat exchange tubes 1 is communicated through the second communication cavity 523.

Specifically, in order to facilitate the communication processing of the heat exchange tubes 1, the heat exchange tubes 1 are connected between two water tanks, and a communication cavity arranged in the water tanks can meet the requirement that the two heat exchange tubes 1 are mutually communicated.

The plurality of heat exchange tubes 1 are communicated with each other by the first water tank 51 and the second water tank 52, so that the assembly efficiency can be improved better. In addition, for the water inlet pipe 3 and the water outlet pipe 4 correspondingly installed on the second water tank 52, the water inlet pipe 3 is connected with the corresponding heat exchange pipe 1 through the water inlet cavity 521, and the water outlet pipe 4 is connected with the corresponding heat exchange pipe 1 through the water outlet cavity 522.

In one embodiment, a baffle 53 is disposed between the two first water tanks 51 and the second water tank 52; the baffles 53 are blocked at both ends of the heat exchange plate 2 to restrict the flow of the flue gas between the heat exchange tube 1 and the heat exchange plate 2 by using a surrounding frame structure formed between the first water tank 51, the second water tank 52 and the two baffles 53.

In another embodiment, a bypass flow channel 524 is further provided between the water outlet cavity 522 and the adjacent second communicating cavity 523, and the bypass flow channel 524 can enable water flow in part of the second communicating cavity 523 to directly flow into the water outlet cavity 522 in the use process, so that water in the second communicating cavity 523 can directly flow into the water outlet cavity 522 under the condition that the gas water heater is started and stopped briefly and water is used again, so that the water stopping temperature rise of the gas water heater is reduced, and the temperature constant of the water outlet temperature is improved.

By way of example, the air spoiler 22 comprises a spoiler protrusion 221, wherein the spoiler protrusion 221 protrudes from the surface of the heat exchanger plate 2, and the spoiler protrusion 221 is located between two adjacent assembly holes 21.

Specifically, in order to prolong the heat exchange time between the flue gas and the heat exchange tubes 1, the air turbulence member 22 includes turbulence protrusions 221, and the turbulence protrusions 221 are located between two adjacent heat exchange tubes 1 to turbulence the flowing flue gas, so that the rising flow trend of the flue gas can be slowed down under the action of the turbulence protrusions 221, and the turbulence protrusions 221 enable the flue gas to have the flow trend towards the length direction of the heat exchange tubes 1, so that the heat exchange time between the flue gas and the heat exchange tubes 1 is prolonged.

In another embodiment, the air spoiler 22 includes a spoiler 222, the spoiler 222 is disposed on the upper portion of the heat exchange plate 2, and the spoiler 222 has a downward concave arc plate structure.

Specifically, the spoiler 222 additionally arranged on the upper portion of the heat exchange plate 2 can further generate a spoiler effect on flue gas, on one hand, the spoiler 222 with the concave structure plays a good guiding role on the flue gas to reduce air resistance, on the other hand, the spoiler 222 can generate a trend of diffusing in the length direction perpendicular to the heat exchange tube 1 on the rising air flow, and further prolongs the heat exchange duration between the flue gas and the heat exchange plate 2.

In an embodiment of the present application, a water flow turbulence member 6 is further disposed in the heat exchange tube 1, the water flow turbulence member 6 is disposed along a length direction of the heat exchange tube 1, and the water flow turbulence member 6 is configured to agitate water flowing through the heat exchange tube 1 to form a vortex.

Specifically, because the cross-sectional area of the heat exchange tube 1 is larger, the situation that the water flow flows through the heat exchange tube 1 and the middle water flow is far away from the tube wall of the heat exchange tube 1 to cause uneven heating occurs. For this reason, through setting up rivers vortex part 6 in heat exchange tube 1, rivers vortex part 6 can carry out the vortex to the rivers of flowing through in heat exchange tube 1 in order to form the vortex, can break up the rivers on the one hand to ensure that rivers can be abundant with heat exchange tube 1 carries out the heat exchange, on the other hand the vortex that forms can make the whole misce bene of rivers, in order to realize more even being heated.

In some embodiments, the water flow disturbing member 6 includes a mounting plate 61, a plurality of first guide vanes 62 and a plurality of second guide vanes 63, the first guide vanes 62 are disposed at an upper portion of the mounting plate 61, the second guide vanes 63 are disposed at a lower portion of the mounting plate 61, and the first guide vanes 62 and the second guide vanes 63 extend obliquely toward an end portion of the mounting plate 61 in a water flow direction of the heat exchange tube 1.

Specifically, the water flow turbulence member 6 is fixedly disposed inside the heat exchange tube 1 through the mounting plate 61, and the plurality of first guide vanes 62 and the plurality of second guide vanes 63 disposed up and down are disposed obliquely along the water flow direction, so that when the water flow passes through the heat exchange tube 1, the water flow passing through is guided by the first guide vanes 62 and the second guide vanes 63, and the water flow is guided to flow toward the upper portion or the lower portion through the facing surfaces of the first guide vanes 62 and the second guide vanes 63, and forms a vortex at the back flow surfaces of the first guide vanes 62 and the second guide vanes 63. The first guide vane 62 and the second guide vane 63 are vertically spaced apart through the mounting plate 61, and vortex flows can be formed in the upper and lower areas of the mounting plate 61 in the height direction of the section of the heat exchange tube 1, so that the requirement of fully mixing water flow and exchanging heat under the section with larger height dimension is met.

In some embodiments, in one embodiment of the present application, the first and

second flow deflectors

62, 63 are alternately spaced apart on the mounting plate 61.

Specifically, the first guide plates 62 and the second guide plates 63 arranged up and down are further alternately arranged at intervals along the flow direction of the water flow, so that the interaction of the first guide plates 62 and the second guide plates 63 can be reduced to generate excessive water resistance to the water flow flowing through the heat exchange tube 1, and the smooth flow of the water flow is ensured.

In some embodiments, the widths of the first and

second baffles

62, 63 taper from root to free end.

Specifically, the width of the guide vane along the extending direction is gradually reduced, and the width of the free end part of the guide vane is smaller, so that water flow can smoothly flow from the guide vane to the inner pipe wall of the heat exchange pipe 1 and generate strong vortex, and the heat exchange effect of the water flow and the inner wall of the heat exchange pipe 1 is improved. More importantly, the water flows downwards rapidly along the back flow surface of the guide vane after flowing through the free end part of the guide vane, so that the problem that water close to the wall of the heat exchange tube 1 forms scale on the tube wall due to overhigh temperature of the tube wall and the problem that the noise is overlarge due to overheat boiling of the water close to the tube wall is avoided.

In some embodiments, the mounting plate 61 is provided with a plurality of through holes 64. Specifically, by providing the through holes 64, the water flow in the upper and lower regions of the mounting plate 61 can flow up and down through the through holes 64 in the height direction of the cross section of the heat exchange tube 1, so that the water flow in the upper and lower regions of the mounting plate 61 is uniformly mixed, and the heating uniformity of the water flow is improved.

In some embodiments, the root of the first deflector 62 and the root of the second deflector 63 are both disposed at the water inlet side edge of the corresponding through hole 64.

Specifically, the vortex formed by the water flow flowing through the guide vane is located at the upper part or the lower part of the position where the through hole 64 is located, and the water flow in the upper and lower areas of the mounting plate 61 can be more fully and uniformly mixed under the action of the vortex.

In another embodiment, the water flow disturbing member 6 is fixed in the heat exchange tube 1 for convenience. The flange structures 65 are respectively arranged on two sides of the mounting plate 61, and the flange structures 65 are arranged on the inner pipe wall of the heat exchange pipe 1.

In some embodiments, conventional copper materials may be used for the heat exchanger; because the heat exchanger has enough large heat exchange area to meet the heat exchange requirement, the heat exchanger can be processed by adopting low-cost materials such as stainless steel and the like to reduce the cost. Here, the specific material of the heat exchanger is not limited.

Under the condition that the heat exchanger is made of stainless steel, the heat conduction performance of the stainless steel is inferior to that of copper, but the corrosion resistance is better, and the heat conduction defect is overcome by matching with the flat structure of the heat exchange tube, so that the heat exchange efficiency of the heat exchanger meets the standard, and the manufacturing cost can be reduced.

In a second embodiment, as shown in fig. 7, this embodiment proposes a gas water heater, including: housing 100, burner 200, combustion chamber 300, heat exchanger 400, and fume collection hood 500.

The burner 200 is used for burning fuel gas, and the heat exchanger 400 employs the heat exchanger in the above embodiment. Wherein the burner 200, the combustion chamber 300, the heat exchanger 400, and the fume collecting hood 500 are disposed in the housing 1, the burner 200 is disposed at the bottom of the combustion chamber 300, the heat exchanger 400 is disposed in the upper portion of the combustion chamber 300, and the fume collecting hood 500 is disposed above the heat exchanger 400.

Specifically, the gas water heater of the present embodiment adopts the heat exchanger of the first embodiment, and the high temperature flue gas generated by the combustion of the gas in the combustion chamber 300 by the burner 200 flows into the heat exchanger 400 to heat the water flowing through the heat exchanger 400 and is outputted from the smoke collecting hood 500 to the outside. Regarding the specific processing procedure of the gas water heater, reference may be made to a conventional gas water heater, which is not limited herein.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A heat exchanger, comprising:

wherein, the heat exchange tube is installed in the assembly hole.

2. The heat exchanger of claim 1, wherein a plurality of the heat exchange tubes are connected to each other to form a water flow passage;

3. A heat exchanger according to claim 2, wherein the end portions of two adjacent heat exchange tubes are communicated with each other by a waterway communication member.

4. A heat exchanger according to claim 3, wherein the waterway communication member is a bent pipe through which a plurality of the heat exchange tubes are sequentially communicated;

or, the waterway communication piece comprises a first water tank and a second water tank, at least one first communication cavity is arranged on the first water tank, the second water tank is provided with a water inlet cavity, a water outlet cavity and at least one second communication cavity, the water inlet pipe is communicated with the water inlet cavity, the water outlet pipe is communicated with the water outlet cavity, the heat exchange pipe is arranged between the first water tank and the second water tank, one heat exchange pipe is communicated with the water inlet cavity, the other heat exchange pipe is communicated with the water outlet cavity, at least one pair of heat exchange pipes are communicated through the first communication cavity, and at least one pair of heat exchange pipes are communicated through the second communication cavity.

5. The heat exchanger of claim 1, wherein the air turbulator comprises turbulator protrusions protruding from a surface of the heat exchanger plate, the turbulator protrusions being located between two adjacent mounting holes; and/or the air spoiler comprises a spoiler, wherein the spoiler is arranged on the upper part of the heat exchange plate and is in a downward concave arc-shaped plate structure.

6. The heat exchanger of claim 1, wherein the heat exchange tubes and the heat exchange fins are made of copper or stainless steel.

7. The heat exchanger of claim 1, wherein a water flow disruption member is further disposed in the heat exchange tube, the water flow disruption member being disposed along a length of the heat exchange tube, the water flow disruption member being configured to disrupt water flowing through the heat exchange tube to form a vortex.

8. The heat exchanger of claim 7, wherein the water flow disturbing member comprises a mounting plate, a plurality of first guide vanes provided at an upper portion of the mounting plate, and a plurality of second guide vanes provided at a lower portion of the mounting plate, the first guide vanes and the second guide vanes extending obliquely toward an end portion of the mounting plate in a water flow direction of the heat exchange tube.

9. The heat exchanger of claim 8, wherein the first and second baffles are alternately spaced apart on the mounting plate.

10. A gas water heater, comprising:

a housing;

a burner for combusting a fuel gas;

a heat exchanger employing a heat exchanger according to any one of claims 1-9;