CN219494407U - Heat exchanger and water heater - Google Patents

Abstract

The utility model discloses a heat exchanger and a water heater. The heat exchanger comprises a shell, wherein a cavity with opposite ends communicated with the outside of the shell is arranged in the shell, and the shell is also provided with an air inlet and an air outlet; the pipe body assembly is arranged in the cavity and comprises a plurality of groups of pipe assemblies, each pipe assembly comprises at least two water pipes, and adjacent water pipes are arranged at intervals; the first end cover assembly is arranged at the first end of the cavity and connected with the shell so as to seal the first end of the cavity, and one end of the water pipe is connected with the first end cover assembly; the second end cover assembly is arranged at the second end of the cavity and connected with the shell so as to seal the second end of the cavity, the other end of the water pipe is connected with the second end cover assembly, and a plurality of groups of pipeline assemblies are connected with the second end cover assembly through the first end cover assembly; the water inlet connector and the water outlet connector are arranged on the first end cover assembly or the second end cover assembly.

Description

Heat exchanger and water heater

Technical Field

The utility model relates to the technical field of kitchen electricity, in particular to a heat exchanger and a water heater.

Background

The condensing gas water heater absorbs the waste heat of the flue gas through the condensing heat exchanger, and the heat efficiency is improved by more than 8% compared with that of a common gas water heater, and the condensing gas water heater belongs to energy-saving and environment-friendly products.

Heat exchangers used for absorbing flue gas waste heat in the market are mainly coiled tubes (threaded tubes) or tube fins. The tube fin has the advantage of high heat exchange efficiency, but has larger resistance to flue gas and is easy to block the flue gas; the coiled pipe type heat exchange effect is good, but the water resistance is large, and noise is easy to generate.

Therefore, a heat exchanger is needed to solve the above-mentioned problems.

Disclosure of Invention

The present utility model aims to solve at least one of the problems of the related art to a certain extent, and therefore, the present utility model proposes a heat exchanger having the advantage of low noise.

The above object is achieved by the following technical scheme:

a heat exchanger, comprising:

the shell is internally provided with a cavity with opposite ends communicated with the outside of the shell, and the shell is also provided with an air inlet and an air outlet;

the pipe body assembly is arranged in the cavity and comprises a plurality of groups of pipe assemblies, each pipe assembly comprises at least two water pipes, and adjacent water pipes are arranged at intervals;

a first end cap assembly disposed at a first end of the cavity and coupled to the housing to seal the first end of the cavity, one end of the water pipe being coupled to the first end cap assembly;

the second end cover assembly is arranged at the second end of the cavity and connected with the shell so as to seal the second end of the cavity, the other end of the water pipe is connected with the second end cover assembly, and a plurality of groups of pipeline assemblies are connected through the first end cover assembly and the second end cover assembly;

the water inlet joint is arranged on the first end cover assembly or the second end cover assembly, the water inlet joint is connected with one end of the pipeline assembly through the first end cover assembly or the second end cover assembly, and the water outlet joint is connected with one end of the other group of pipeline assemblies through the first end cover assembly or the second end cover assembly.

Optionally, the body subassembly include first pipeline group and with first pipeline group parallel and the second pipeline group that the interval set up, first pipeline group with the second pipeline group all includes the parallel and interval set up of multiunit along same straight line pipeline subassembly, first pipeline group with the second pipeline group passes through first end cover subassembly or second end cover subassembly is connected, water inlet connector with a set of that is located the lower extreme of first pipeline group pipeline subassembly is connected, a set of that is located the uppermost pipeline group pipeline subassembly with a set of that is located the uppermost of second pipeline group pipeline subassembly is connected, water outlet connector with a set of that is located the lower extreme of second pipeline group pipeline subassembly is connected.

Optionally, the first end cap assembly includes:

the first cover plate is arranged at one end of the cavity and is connected with the shell;

the first lid subassembly, including first lid, second lid and third lid, first lid with the third lid all sets up the lower part of first apron, and with enclose between the first apron and close and form first water passing chamber and second water passing chamber, first water passing intracavity set up the apopore on the first apron, second water passing intracavity set up the inlet opening on the first apron, the top of first lid with the top of third lid all be provided with first apron connection the second lid, the second lid with first apron encloses and forms the third water passing chamber, third water passing intracavity set up along the inlet opening and the apopore of vertical orientation setting on the first apron.

Optionally, the first cover plate is provided with a first groove corresponding to the first cover body, a second groove corresponding to the second cover body and a third groove corresponding to the third cover body, the first cover body and the first groove are welded to form the first water passing cavity, the second cover body and the second groove are welded to form the third water passing cavity, and the third cover body and the third groove are welded to form the second water passing cavity.

Optionally, the second end cap assembly includes:

the second cover plate is arranged at the other end of the cavity and is connected with the shell;

the second cover body assembly comprises a fourth cover body and a fifth cover body, wherein the fifth cover body is arranged on the upper portion of the second cover plate and is enclosed with the second cover plate to form a fourth water passing cavity, the second cover plate in the fourth water passing cavity is provided with a water inlet hole and a water outlet hole which are arranged along the horizontal direction, the fourth cover body is connected with the second cover plate and is located below the fifth cover body, the fourth cover body is enclosed with the second cover plate to form a fifth water passing cavity, the second cover plate in the fifth water passing cavity is provided with a water inlet hole and a water outlet hole which are arranged along the vertical direction, the water inlet hole in the first cover plate is corresponding to the water outlet hole in the second cover plate, and the water inlet hole and the water outlet hole which are correspondingly arranged are connected through the water pipe.

Optionally, a fourth groove corresponding to the fourth cover body and a fifth groove corresponding to the fifth cover body are formed in the second cover plate, the fourth cover body and the fourth groove are welded to form a fifth water passing cavity, and the fifth cover body and the fifth groove are welded to form the fourth water passing cavity.

Optionally, the water pipe, the water inlet hole and the water outlet hole are welded.

Optionally, in the pipe body assembly, the number of the water pipes of the two sets of the pipe assemblies located at the upper part of the pipe body assembly is greater than the number of the water pipes of the other pipe assemblies.

Optionally, the air inlet is disposed on a peripheral side of the housing, and the air outlet is disposed on an upper side of the housing.

Optionally, a condensate water tank is arranged on the lower side of the shell, and a condensate water outlet is arranged on the lower side of the condensate water tank.

The utility model further provides a water heater, which comprises the heat exchanger, wherein the heat exchanger is arranged on a shell of the water heater, and the air outlet of the heat exchanger is communicated with the outlet of a fan of the water heater.

Compared with the prior art, the utility model at least comprises the following beneficial effects:

according to the heat exchanger provided by the utility model, the water inlet connector is connected with one end of the pipeline assembly provided with at least two water pipes, so that the water resistance is smaller compared with a pipeline structure formed by bending a single water pipe in the prior art, the water flow in the pipeline is facilitated, and the noise generated by the water resistance can be effectively reduced.

Drawings

Fig. 1 is a schematic perspective view of a heat exchanger according to a first embodiment of the present utility model;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic perspective view of a housing of a heat exchanger according to a first embodiment of the present utility model;

fig. 4 is a schematic perspective view of the assembly of the pipe assembly, the water inlet joint and the water outlet structure of the heat exchanger according to the first embodiment of the present utility model;

FIG. 5 is a schematic perspective view of a first cover plate of a first end cap assembly of a heat exchanger according to a first embodiment of the present utility model;

FIG. 6 is a schematic perspective view of a second cover plate of a second end cap assembly of a heat exchanger according to a first embodiment of the present utility model;

FIG. 7 is a top view of a heat exchanger provided by a first embodiment of the present utility model;

FIG. 8 is a cross-sectional view taken at A-A of FIG. 7;

fig. 9 is a front view of a heat exchanger provided by a first embodiment of the present utility model;

FIG. 10 is a cross-sectional view taken at B-B of FIG. 9;

FIG. 11 is a cross-sectional view taken at E-E of FIG. 9;

fig. 12 is a schematic cross-sectional view of a heat exchanger according to a third embodiment of the present utility model.

In the figure:

1. a housing; 11. an air inlet; 111. an air inlet joint; 12. an air outlet; 121. an air outlet joint; 13. a condensate tank; 131. a condensed water outlet;

2. a first end cap assembly; 21. a first cover plate; 211. a first groove; 212. a second groove; 213. a third groove; 22. a first cover assembly; 221. a first cover; 2211. a first water passing cavity; 222. a second cover; 2221. a third water passing cavity; 223. a third cover; 2231. a second water passing cavity;

3. a second end cap assembly; 31. a second cover plate 311 and a fourth groove; 312. a fifth groove; 32. a second cover assembly; 321. a fourth cover; 3211. a fifth water passing cavity; 322. a fifth cover; 3221. a fourth water passing cavity;

4. a tube assembly; 40. a water pipe; 400. a conduit assembly; 41. a first pipe group; 42. a second pipe group;

5. a water inlet joint;

6. a water outlet joint;

100. a water inlet hole; 200. and a water outlet hole.

Detailed Description

The following examples illustrate the utility model, but the utility model is not limited to these examples. Modifications and equivalents of some of the technical features of the specific embodiments of the present utility model may be made without departing from the spirit of the present utility model, and they are all included in the scope of the claimed utility model.

Referring to fig. 1-11, the present utility model provides a heat exchanger, which includes a housing 1, a tube assembly 4, a first end cap assembly 2, a water inlet joint 5 and a water outlet joint 6. The shell 1 is internally provided with a cavity with opposite ends communicated with the outside of the shell 1, and the shell 1 is also provided with an air inlet 11 and an air outlet 12. The pipe body assembly 4 is disposed in the cavity, the pipe body assembly 4 includes a plurality of sets of pipe assemblies 400, the pipe assemblies 400 include at least two water pipes 40, and adjacent water pipes 40 are disposed at intervals. The first end cap assembly 2 is disposed at a first end of the cavity and is connected to the housing 1 to seal the first end of the cavity, and one end of the water tube 40 is connected to the first end cap assembly 2. The second end cap assembly 3 is disposed at the second end of the cavity and connected with the housing 1 to seal the second end of the cavity, the other end of the water pipe 40 is connected with the second end cap assembly 3, and the plurality of groups of pipe assemblies 400 are connected with the second end cap assembly 3 through the first end cap assembly 2. The water inlet joint 5 and the water outlet joint 6 are arranged on the first end cover assembly 2 or the second end cover assembly 3, the water inlet joint 5 is connected with one end of the pipeline assembly 400 through the first end cover assembly 2 or the second end cover assembly 3, the water outlet joint 6 is connected with one end of the other group of pipeline assemblies 400 through the first end cover assembly 2 or the second end cover assembly 3, and the water inlet pipe of the gas water heater is connected with the water outlet joint 6 so as to improve the initial temperature of water entering the gas water heater, and then the effects of saving energy and reducing consumption are achieved.

According to the heat exchanger provided by the utility model, the water inlet connector 5 is connected with one end of the pipeline assembly 400 provided with at least two water pipes 40, so that compared with a pipeline structure formed by bending a single water pipe 40 in the prior art, the water resistance is smaller, the water flow in the pipeline is facilitated, and the noise generated by the water resistance can be effectively reduced.

Referring specifically to fig. 1-11, in the first embodiment, the pipe assembly 400 includes two water pipes 40, and of course, in the second embodiment, the pipe assembly 400 may be provided with more than three water pipes 40. Referring to fig. 12, in the third embodiment, it may also be configured that: a portion of the pipe assembly 400 is provided with two water pipes 40 and another portion of the pipe assembly 400 is provided with three water pipes 40.

Referring to fig. 1 to 11, alternatively, the pipe body assembly 4 includes a first pipe group 41 and a second pipe group 42 parallel to the first pipe group 41 and spaced apart from each other, the first pipe group 41 and the second pipe group 42 each include a plurality of groups of pipe assemblies 400 parallel to each other along a same straight line and spaced apart from each other, the first pipe group 41 and the second pipe group 42 are connected through the first end cap assembly 2 or the second end cap assembly 3, the water inlet joint 5 is connected with a group of pipe assemblies 400 located at the lowermost end of the first pipe group 41, a group of pipe assemblies 400 located at the uppermost end of the first pipe group 41 is connected with a group of pipe assemblies 400 located at the uppermost end of the second pipe group 42, and the water outlet joint 6 is connected with a group of pipe assemblies 400 located at the lowermost end of the second pipe group 42.

Optionally, the first end cap assembly 2 includes a first cap plate 21 and a first cap body 221 assembly 22. The first cover plate 21 is provided at one end of the cavity and is connected to the housing 1. The first cover 221 assembly 22 comprises a first cover 221, a second cover 222 and a third cover 223, the first cover 221 and the third cover 223 are arranged at the lower part of the first cover 21 and form a first water passing cavity 2211 and a second water passing cavity 2231 by surrounding with the first cover 21, the first cover 21 in the first water passing cavity 2211 is provided with a water outlet 200, the first cover 21 in the second water passing cavity 2231 is provided with a water inlet 100, the upper part of the first cover 221 and the upper part of the third cover 223 are both provided with a second cover 222 connected with the first cover 21, the second cover 222 and the first cover 21 form a third water passing cavity 2221 by surrounding, and the first cover 21 in the third water passing cavity 2221 is provided with a water inlet 100 and a water outlet 200 arranged along the vertical direction. 200

Optionally, a first groove 211 corresponding to the first cover 221, a second groove 212 corresponding to the second cover 222, and a third groove 213 corresponding to the third cover 223 are formed on the first cover 21, the first cover 221 and the first groove 211 are welded to form a first water passing cavity 2211, the second cover 222 and the second groove 212 are welded to form a third water passing cavity 2221, and the third cover 223 and the third groove 213 are welded to form a second water passing cavity 2231, so as to ensure the sealing effect of the first water passing cavity 2211, the second water passing cavity 2231, and the third water passing cavity 2221.

Optionally, the second end cap assembly 3 includes a second cover plate and second cap 222 assembly. The second cover plate is arranged at the other end of the cavity and is connected with the shell 1. The second cover 222 assembly includes a fourth cover 321 and a fifth cover 322, the fifth cover is disposed on an upper portion of the second cover and encloses with the second cover to form a fourth water passing cavity 3221, a water inlet 100 and a water outlet 200 disposed along a horizontal direction are disposed on the second cover in the fourth water passing cavity 3221, the fourth cover 321 is connected with the second cover and located below the fifth cover 322, the fourth cover 321 encloses with the second cover to form a fifth water passing cavity 3211, a water inlet 100 and a water outlet 200 disposed along a vertical direction are disposed on the second cover in the fifth water passing cavity 3211, the water inlet 100 disposed on the first cover and the water outlet 200 disposed on the second cover are correspondingly disposed, and the water inlet 100 and the water outlet 200 disposed correspondingly are connected through a water pipe 40.

Optionally, a fourth groove corresponding to the fourth cover 321 and a fifth groove 312 corresponding to the fifth cover 322 are formed on the second cover, the fourth cover 321 and the fourth groove are welded to form a fifth water passing cavity 3211, and the fifth cover 322 and the fifth groove 312 are welded to form a fourth water passing cavity 3221, so as to ensure the sealing effect of the fourth water passing cavity 3221 and the fifth water passing cavity 3211.

Optionally, the water pipe 40 is welded with the water inlet hole 100 and the water outlet hole 200, so as to ensure the sealing effect between the pipe body assembly 4 and the first end cover assembly 2 and the second end cover assembly 3.

Specifically, referring to fig. 9-11, water within the tube assembly 4 flows in the direction of arrow D.

Specifically, the water inlet holes 100 and the water outlet holes 200 on the first cover plate 21 are arranged in a matrix, the water inlet holes 100 and the water outlet holes 200 on the second cover plate are also arranged in a matrix, so that the water pipes 40 in the pipe body assembly 4 are also arranged in a matrix, gaps among the water pipes 40 are uniform, flue gas is uniformly distributed in the gaps among the water pipes 40, and heat exchange is facilitated.

Alternatively, in the fourth embodiment, in the pipe body assembly 4, the number of the water pipes 40 of the two sets of pipe assemblies 400 located at the upper portion of the pipe body assembly 4 is greater than the number of the water pipes 40 of the other pipe assemblies 400. As shown in fig. 12, two sets of pipe assemblies 400 located at the upper part of the pipe body assembly 4 have three water pipes 40, and the other pipe assemblies 400 have only two water pipes 40, so that the oil smoke can be blocked in the cavity for a longer time, thereby improving the heat exchange effect.

Alternatively, the air inlet 11 is provided at the peripheral side of the housing 1, and the air outlet 12 is provided at the upper side of the housing 1 so that the oil smoke flows from the bottom up.

Optionally, a condensate water tank 13 is provided on the lower side of the housing 1, and a condensate water outlet 131 is provided on the lower side of the condensate water tank 13. By providing the condensate tank 13, the condensate in the cavity can be collected in the condensate tank 13 and then discharged through the condensate water outlet 131.

Optionally, the air inlet connector 111 and the air outlet connector 121 are further included, the air inlet connector 111 is connected with the air inlet 11, and the air outlet connector 121 is connected with the air outlet 12.

Another aspect of the present utility model provides a water heater, including the heat exchanger, where the heat exchanger is installed on a casing of the water heater, and an air outlet 12 of the heat exchanger is communicated with an outlet of a fan of the water heater.

Specifically, referring to fig. 7 and 8, after being discharged from the outlet of the volute, the oil smoke enters the cavity along the air inlet 11, exchanges heat with water in the water pipe 40 in the cavity, and flows out from the air outlet 12 to the flue (the oil smoke flows along arrow C).

What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.

Claims (9)

1. A heat exchanger, comprising:

the device comprises a shell (1), wherein a cavity with opposite ends communicated with the outside of the shell (1) is arranged in the shell (1), and an air inlet (11) and an air outlet (12) are also formed in the shell (1);

the pipe body assembly (4) is arranged in the cavity, the pipe body assembly (4) comprises a plurality of groups of pipe assemblies (400), the pipe assemblies (400) comprise at least two water pipes (40), and the adjacent water pipes (40) are arranged at intervals;

a first end cap assembly (2) disposed at a first end of the cavity and connected to the housing (1) to seal the first end of the cavity, one end of the water tube (40) being connected to the first end cap assembly (2);

the second end cover assembly (3) is arranged at the second end of the cavity and is connected with the shell (1) so as to seal the second end of the cavity, the other end of the water pipe (40) is connected with the second end cover assembly (3), and a plurality of groups of pipeline assemblies (400) are connected with the second end cover assembly (3) through the first end cover assembly (2);

a water inlet joint (5) and a water outlet joint (6) are arranged on the first end cover assembly (2) or the second end cover assembly (3), the water inlet joint (5) is connected with one end of the pipeline assembly (400) through the first end cover assembly (2) or the second end cover assembly (3), and the water outlet joint (6) is connected with one end of the other group of pipeline assemblies (400) through the first end cover assembly (2) or the second end cover assembly (3);

the pipe body assembly (4) comprises a first pipe group (41) and a second pipe group (42) which is parallel to the first pipe group (41) and is arranged at intervals, the first pipe group (41) and the second pipe group (42) comprise a plurality of groups of pipe assemblies (400) which are parallel along the same straight line and are arranged at intervals, the first pipe group (41) and the second pipe group (42) are connected through the first end cover assembly (2) or the second end cover assembly (3), the water inlet joint (5) is connected with a group of pipe assemblies (400) which are positioned at the lowest end of the first pipe group (41), a group of pipe assemblies (400) which are positioned at the uppermost end of the first pipe group (41) is connected with a group of pipe assemblies (400) which are positioned at the uppermost end of the second pipe group (42), and the water outlet joint (6) is connected with a group of pipe assemblies (400) which are positioned at the lowest end of the second pipe group (42);

the first end cap assembly (2) comprises:

the first cover plate (21) is arranged at one end of the cavity and is connected with the shell (1);

first lid subassembly (22), including first lid (221), second lid (222) and third lid (223), first lid (221) with third lid (223) all set up the lower part of first apron (21), and with enclose between first apron (21) and form first water cavity (2211) and second water cavity (2231), first water cavity (2211) is interior first apron (21) is last to have seted up apopore (200), second water cavity (2231) is interior first apron (21) is last to have seted up inlet port (100), the top of first lid (221) with the top of third lid (223) all be provided with first apron (21) are connected second lid (222), second lid (222) with first apron (21) are closed and are formed third water cavity (2221), third water cavity (2221) is crossed in first apron (21) is last to have seted up water inlet port (100).

2. The heat exchanger according to claim 1, wherein the first cover plate (21) is provided with a first groove (211) corresponding to the first cover body (221), a second groove (212) corresponding to the second cover body (222) and a third groove (213) corresponding to the third cover body (223), the first cover body (221) and the first groove (211) are welded to form the first water passing cavity (2211), the second cover body (222) and the second groove (212) are welded to form the third water passing cavity (2221), and the third cover body (223) and the third groove (213) are welded to form the second water passing cavity (2231).

3. The heat exchanger according to claim 1, wherein the second end cap assembly (3) comprises:

the second cover plate (31) is arranged at the other end of the cavity and is connected with the shell (1);

the second cover body assembly (32) comprises a fourth cover body (321) and a fifth cover body (322), wherein the fifth cover body (322) is arranged on the upper portion of the second cover plate (31) and is enclosed with the second cover plate (31) to form a fourth water passing cavity (3221), the second cover plate (31) in the fourth water passing cavity (3221) is provided with a water inlet hole (100) and a water outlet hole (200) which are arranged in the horizontal direction, the fourth cover body (321) is connected with the second cover plate (31) and is located below the fifth cover body (322), the fourth cover body (321) is enclosed with the second cover plate (31) to form a fifth water passing cavity (3211), the second cover plate (31) in the fifth water passing cavity (3211) is provided with a water inlet hole (100) and a water outlet hole (200) which are arranged in the vertical direction, the water inlet hole (100) and the water outlet hole (100) of the first cover plate (21) are located between the water inlet hole (100) and the second cover plate (100) and the water outlet hole (200) which are arranged correspondingly, and the water inlet pipe (40) is arranged.

4. A heat exchanger according to claim 3, wherein a fourth groove (311) corresponding to the fourth cover body (321) and a fifth groove (312) corresponding to the fifth cover body (322) are formed on the second cover plate (31), the fourth cover body (321) and the fourth groove (311) are welded to form the fifth water passing cavity (3211), and the fifth cover body (322) and the fifth groove (312) are welded to form the fourth water passing cavity (3221).

5. A heat exchanger according to claim 3, wherein the water pipe (40) is welded to the water inlet (100) and the water outlet (200).

6. A heat exchanger according to any one of claims 1-5, wherein in the tube assembly (4), the number of water tubes (40) of two sets of the tube assemblies (400) located in the upper part of the tube assembly (4) is greater than the number of water tubes (40) of the other tube assemblies (400).

7. A heat exchanger according to any one of claims 1-5, wherein the air inlet (11) is provided at the peripheral side of the housing (1) and the air outlet (12) is provided at the upper side of the housing (1).

8. The heat exchanger according to any one of claims 1 to 5, wherein a condensate water tank (13) is provided at the lower side of the housing (1), and a condensate water outlet (131) is provided at the lower side of the condensate water tank (13).

9. A water heater comprising a heat exchanger according to any one of claims 1 to 8, said heat exchanger being mounted on a housing of said water heater, said air outlet (12) of said heat exchanger being in communication with an outlet of a fan of said water heater.