CN218673280U

CN218673280U - High-temperature heat exchanger for water dispenser with low flow speed and high heat exchange ratio

Info

Publication number: CN218673280U
Application number: CN202223097406.5U
Authority: CN
Inventors: 林伟光; 梁宝锋; 李飞文; 李小光
Original assignee: Guangdong Weining Technology Co ltd
Current assignee: Guangdong Weining Technology Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-03-21
Anticipated expiration: 2032-11-22

Abstract

The utility model relates to a low velocity of flow, high heat transfer ratio's high temperature heat exchanger for drinking machine, which comprises a top plate, bottom plate and water passing plate group, water passing plate group is located between roof and the bottom plate, the roof is equipped with first medium inlet tube, first medium outlet pipe, second medium inlet tube and second medium outlet pipe, water passing plate group includes a plurality of fins and a plurality of rubber circle, two adjacent fins form first medium runner and second medium runner, the flow direction of first medium and the flow opposite direction of second medium, a plurality of first medium runners and a plurality of second medium runner arrange in turn in water passing plate group, the fin is equipped with locating component. The utility model discloses heat exchange efficiency is high, uses on the water dispenser that the flow resistance is little, the noise is low, can pass in and out the water difference in temperature under quick heat transfer and the normal velocity of flow and can reach more than 50K.

Description

High-temperature heat exchanger for water dispenser with low flow speed and high heat exchange ratio

Technical Field

The utility model relates to a heat exchanger technical field especially relates to a high temperature heat exchanger for water dispenser of low velocity of flow, high heat transfer ratio.

Background

At present, a plate heat exchanger is a novel efficient heat exchanger formed by overlapping and assembling a series of heat exchange fins with certain corrugated shapes, thin rectangular channels are formed among various heat exchange fins, and heat exchange is carried out through the heat exchange fins. The plate heat exchanger is an ideal device for heat exchange between liquid and between liquid and gas, and has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small occupied area, convenient installation and cleaning, wide application, long service life and the like. Under the condition of the same pressure loss, the heat transfer coefficient of the heat exchanger is 3-5 times higher than that of the tubular heat exchanger, the floor area of the heat exchanger is only one third of that of the tubular heat exchanger, and the heat recovery rate can reach more than 90 percent.

However, because the plurality of heat exchange fins are in the same shape and have uniform specifications, and the plurality of heat exchange fins need to be installed according to a preset stacking sequence, the worker is easy to be confused in the process of installing the heat exchanger, the quality inspection difficulty is increased, the time is prolonged, and the production efficiency and the quality inspection efficiency of the heat exchanger are seriously reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high temperature heat exchanger for water dispenser of low velocity of flow, high heat transfer ratio, locating component can fix a position the installation direction of a plurality of adjacent fins for a plurality of fins can be according to predetermined orientation of piling up and sort. At this moment, whether the staff can discern the installation direction of this heat exchanger fin through locating component correct, can also once only judge whether the installation direction of a plurality of heat exchanger fins is correct, improve the production efficiency and the quality control efficiency of the high temperature heat exchanger of this scheme, it is big with the quality control time length to have solved staff's the quality control degree of difficulty.

In order to achieve the above object, the utility model provides a following technical scheme:

a high-temperature heat exchanger for a water dispenser with low flow speed and high heat exchange ratio comprises a top plate, a bottom plate and a water passing plate group, wherein the water passing plate group is positioned between the top plate and the bottom plate, the top plate is provided with a first medium water inlet pipe, a first medium water outlet pipe, a second medium water inlet pipe and a second medium water outlet pipe, the first medium water inlet pipe, the first medium water outlet pipe, the second medium water inlet pipe and the second medium water outlet pipe are communicated with an external pipeline, the first medium water inlet pipe and the first medium water outlet pipe are positioned at two opposite angles of the top plate, and the second medium water inlet pipe and the second medium water outlet pipe are positioned at the other two opposite angles of the top plate;

the water passing plate group comprises a plurality of heat exchange plates and a plurality of rubber rings, a first medium flow channel and a second medium flow channel are formed by two adjacent heat exchange plates, the rubber rings are used for sealing the first medium flow channel and the second medium flow channel, the first medium flow channel is used for allowing a first medium to flow, the second medium flow channel is used for allowing a second medium to flow, the flow direction of the first medium is opposite to that of the second medium, and the plurality of first medium flow channels and the plurality of second medium flow channels are alternately distributed in the water passing plate group;

the input end of the first medium flow channel is communicated with the first medium water inlet pipe, the output end of the first medium flow channel is communicated with the first medium water outlet pipe, the input end of the second medium flow channel is communicated with the second medium water inlet pipe, and the output end of the second medium flow channel is communicated with the second medium water outlet pipe;

the heat exchange fins are provided with positioning assemblies, and the positioning assemblies are used for positioning a plurality of adjacent heat exchange fins.

Optionally, the heat exchanger plate is provided with a V-shaped flow guiding area, the heat exchanger plate includes a first sub heat exchanger plate and a second sub heat exchanger plate, an opening direction of the V-shaped flow guiding area of the first sub heat exchanger plate is opposite to an opening direction of the V-shaped flow guiding area of the second sub heat exchanger plate, the first sub heat exchanger plate and the second sub heat exchanger plate are alternately arranged, and the rubber ring is located between the first sub heat exchanger plate and the second sub heat exchanger plate;

the first sub heat exchange plate, the rubber ring and the second sub heat exchange plate form a closed first medium flow passage and a closed second medium flow passage.

Optionally, the first sub heat exchanger plate and the second sub heat exchanger plate are both provided with a flow distribution region and a through hole, the through hole includes a first sub through hole, a second sub through hole, a third sub through hole and a fourth sub through hole, and the first sub through hole, the second sub through hole, the third sub through hole and the fourth sub through hole are respectively communicated with the first medium water inlet pipe, the first medium water outlet pipe, the second medium water inlet pipe and the second medium water outlet pipe;

the plurality of shunting areas are respectively positioned at the outer sides of the first sub through hole, the second sub through hole, the third sub through hole and the fourth sub through hole and are respectively communicated with the first sub through hole, the second sub through hole, the third sub through hole and the fourth sub through hole;

the plurality of flow distribution areas are communicated with the V-shaped flow guide area, the first sub heat exchange plate and the second sub heat exchange plate are provided with positioning assemblies, and the positioning assemblies are used for positioning the adjacent first sub heat exchange plate or the adjacent second sub heat exchange plate.

Optionally, the rubber ring comprises a first sub-rubber ring and a second sub-rubber ring, the first sub-rubber ring and the second sub-rubber ring are both provided with a first sealing part and a second sealing part, and the first sealing part and the second sealing part are of an integrally formed structure;

the first sealing part of the first sub rubber ring is used for sealing the third sub through hole and the fourth sub through hole, the second sealing part of the first sub rubber ring is used for sealing the outer side edges of the first sub through hole, the second sub through hole, the flow distribution area and the V-shaped flow guide area, and the second sealing part of the first sub rubber ring, the first sub heat exchange sheet and the second sub heat exchange sheet form the first medium flow channel;

the first sealing part of the second sub rubber ring is used for sealing the first sub through hole and the second sub through hole, the second sealing part of the second sub rubber ring is used for sealing the outer side edges of the third sub through hole, the fourth sub through hole, the flow distribution area and the V-shaped flow guide area, and the second sealing part, the first sub heat exchange sheet and the second sub heat exchange sheet of the second sub rubber ring form the second medium flow channel;

the first sub rubber ring and the second sub rubber ring are alternately arranged between the first sub heat exchange sheet and the second sub heat exchange sheet.

Optionally, the first sub-rubber ring and the second sub-rubber ring are both provided with three layers of leakage-proof structures, and two sides of each leakage-proof structure are tightly attached to the first sub-heat exchange sheet and the second sub-heat exchange sheet.

Optionally, the outer side edges of the first sub heat exchange plate and the second sub heat exchange plate are respectively provided with a flange structure in a surrounding manner.

Optionally, the positioning assembly includes a first notch and a second notch, the top and the bottom of the first sub heat exchanger plate and the second sub heat exchanger plate are both provided with the first notch, the first notch is provided with an arc plate, the height of the arc plate is higher than the surfaces of the first sub heat exchanger plate and the second sub heat exchanger plate, the arc plate is contracted inwards, and the arc plate and the first sub heat exchanger plate or the second sub heat exchanger plate are in an integrally formed structure;

the second gaps are arranged on two side edges of the first sub heat exchange plate and the second sub heat exchange plate, the second gaps of the first sub heat exchange plate are close to the first sub through holes and the fourth sub through holes, and the second gaps of the second sub heat exchange plate are close to the second sub through holes and the third sub through holes.

Optionally, the first sub heat exchanger plate and the second sub heat exchanger plate are both made of food-grade stainless steel.

Compared with the prior art, the embodiment of the utility model has following beneficial effect:

1. the positioning assembly may position the mounting orientation of adjacent plates such that the plates may be ordered in a predetermined stacking orientation. At the moment, a worker can identify whether the installation direction of the heat exchange fins is correct through the positioning assembly, and can judge whether the installation directions of the heat exchange fins are correct at one time, so that the production efficiency and the quality inspection efficiency of the high-temperature heat exchanger are improved, and the problems of high quality inspection difficulty and long quality inspection time of the worker are solved;

2. because the opening direction of the V-shaped flow guide area of the first sub heat exchange plate is opposite to the opening direction of the V-shaped flow guide area of the second sub heat exchange plate, the first medium flow channel and the second medium flow channel are provided with a plurality of branch openings to form a complex net-shaped structure, the flowing speed of the first medium and the second medium in the first medium flow channel and the second medium flow channel is accelerated, the heat exchange efficiency of the high-temperature heat exchanger is further improved, the first medium and the second medium are prevented from being detained in the water passing plate group, and a detaining dead zone is formed.

Drawings

FIG. 1 is a schematic view of a high temperature heat exchanger for a drinking water dispenser with a low flow rate and a high heat exchange ratio according to an embodiment of the present invention;

FIG. 2 is an exploded view of a high temperature heat exchanger for a drinking water dispenser with a low flow rate and a high heat exchange ratio according to an embodiment of the present invention;

FIG. 3 is a schematic view of a heat exchanger plate according to an embodiment of the present invention;

fig. 4 is a schematic view of a rubber ring according to an embodiment of the present invention;

FIG. 5 is an enlarged view at A in FIG. 2;

fig. 6 is a cross-sectional view of a rubber ring according to an embodiment of the present invention;

wherein, 1, a top plate; 11. a first medium inlet pipe; 12. a first medium outlet pipe; 13. a second medium inlet pipe; 14. a second medium water outlet pipe; 2. a base plate; 3. a water passing plate group; 4. a heat exchanger fin; 40. a flanging structure; 41. a first sub heat exchanger fin; 42. a second sub heat exchanger fin; 43. a V-shaped flow guide area; 44. a shunting region; 45. a first sub-via; 46. a second sub-via; 47. a third sub-via; 48. a fourth sub-via; 49. a positioning assembly; 491. a first notch; 492. an arc plate; 493. a second notch; 5. a rubber ring; 51. a first sub-rubber ring; 52. a second sub-rubber ring; 53. a first seal portion; 54. a second seal portion; 55. and a leakage-proof structure.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A high temperature heat exchanger for a water dispenser with low flow rate and high heat exchange ratio according to an embodiment of the present invention will be described with reference to fig. 1 to 6.

A high-temperature heat exchanger for a water dispenser with low flow speed and high heat exchange ratio comprises a top plate 1, a bottom plate 2 and a water passing plate group 3, wherein the water passing plate group 3 is positioned between the top plate 1 and the bottom plate 2, the top plate 1 is provided with a first medium water inlet pipe 11, a first medium water outlet pipe 12, a second medium water inlet pipe 13 and a second medium water outlet pipe 14, the first medium water inlet pipe 11, the first medium water outlet pipe 12, the second medium water inlet pipe 13 and the second medium water outlet pipe 14 are all communicated with an external pipeline, the first medium water inlet pipe 11 and the first medium water outlet pipe 12 are positioned at two opposite angles of the top plate 1, and the second medium water inlet pipe 13 and the second medium water outlet pipe 14 are positioned at the other two opposite angles of the top plate 1;

the water passing plate group 3 comprises a plurality of heat exchange plates 4 and a plurality of rubber rings 5, a first medium flow channel and a second medium flow channel are formed by two adjacent heat exchange plates 4, the rubber rings 5 are used for sealing the first medium flow channel and the second medium flow channel, the first medium flow channel is used for allowing a first medium to flow, the second medium flow channel is used for allowing a second medium to flow, the flow direction of the first medium is opposite to that of the second medium, and the plurality of first medium flow channels and the plurality of second medium flow channels are alternately distributed in the water passing plate group 3;

the input end of the first medium flow channel is communicated with the first medium water inlet pipe 11, the output end of the first medium flow channel is communicated with the first medium water outlet pipe 12, the input end of the second medium flow channel is communicated with the second medium water inlet pipe 13, and the output end of the second medium flow channel is communicated with the second medium water outlet pipe 14;

the heat exchange plates 4 are provided with positioning assemblies 49, and the positioning assemblies 49 are used for positioning a plurality of adjacent heat exchange plates 4.

The high-temperature heat exchanger for the water dispenser with the low flow rate and the high heat exchange ratio has the advantages that the first medium can be hot water with higher temperature, and the second medium can be normal-temperature water with lower temperature. The first medium enters the high-temperature heat exchanger through the first medium inlet pipe 11, flows in the first medium flow channel of the water passing plate group 3, and is discharged out of the high-temperature heat exchanger through the first medium outlet pipe 12. The second medium flows into the high-temperature heat exchanger through the second medium inlet pipe 13, flows in the second medium flow channel of the water plate group 3, and then flows out from the second medium outlet pipe 14. Because the first medium flow channel and the second medium flow channel are separated only by the heat exchange plates 4, and the flowing direction of the first medium is opposite to that of the second medium, when the first medium and the second medium flow in the water passing plate group 3, the heat exchange efficiency of the first medium and the second medium can be improved.

Wherein, be equipped with a plurality of heat exchanger fins 4 and a plurality of rubber circle 5 in crossing water board group 3, can form first medium runner and second medium runner between two heat exchanger fins 4, wherein first medium runner and second medium runner flow arrange in turn for cross water board group 3 can supply a large amount of first media and second medium to flow simultaneously, thereby further improve this scheme high temperature heat exchanger's heat exchange efficiency. All install rubber circle 5 between two adjacent heat exchanger fins 4, rubber circle 5 can play sealed effect, reduces the condition appearance that first medium and second medium flowed out from the clearance between two adjacent heat exchanger fins 4.

It should be noted that in the present embodiment, the positioning assembly 49 is disposed on the heat exchanging fins 4, and the positioning assembly 49 can position the installation direction of the adjacent heat exchanging fins 4, so that the plurality of heat exchanging fins 4 can be sequenced according to the predetermined stacking direction. At this moment, whether the staff can discern the installation orientation of this fin 4 through locating component 49 correct, can also once only judge whether the installation orientation of a plurality of fins 4 is correct, improve the production efficiency and the quality testing efficiency of the high temperature heat exchanger of this scheme, solved the problem that the staff's the quality testing degree of difficulty is big and the quality testing time is long for this scheme is the high temperature heat exchanger for water dispenser of a low velocity of flow, high heat transfer ratio.

Further, the heat exchanger plate 4 is provided with a V-shaped flow guide area 43, the heat exchanger plate 4 includes a first sub heat exchanger plate 41 and a second sub heat exchanger plate 42, an opening direction of the V-shaped flow guide area 43 of the first sub heat exchanger plate 41 is opposite to an opening direction of the V-shaped flow guide area 43 of the second sub heat exchanger plate 42, the first sub heat exchanger plate 41 and the second sub heat exchanger plate 42 are alternately arranged, and the rubber ring 5 is located between the first sub heat exchanger plate 41 and the second sub heat exchanger plate 42;

the first sub heat exchange plate 41, the rubber ring 5 and the second sub heat exchange plate 42 form the first medium flow passage and the second medium flow passage which are closed.

The first sub heat exchange plate 41 and the second sub heat exchange plate 42 are two products with the same size and the same structure, and the second sub heat exchange plate 42 can be formed by turning the first sub heat exchange plate 41 by 180 degrees, so that the opening direction of the V-shaped flow guide area 43 of the first sub heat exchange plate 41 is opposite to the opening direction of the V-shaped flow guide area 43 of the second sub heat exchange plate 42. The first sub heat exchange plate 41, the rubber ring 5 and the second sub heat exchange plate 42 form a closed first medium flow passage and a closed second medium flow passage. Because the opening direction of the V-shaped flow guide area 43 of the first heat exchange sub-plate 41 is opposite to the opening direction of the V-shaped flow guide area 43 of the second heat exchange sub-plate 42, the first medium flow channel and the second medium flow channel are provided with a plurality of branch openings to form a complex net structure, the flowing speed of the first medium and the second medium in the first medium flow channel and the second medium flow channel is increased, the heat exchange efficiency of the high-temperature heat exchanger is further improved, the phenomenon that the first medium and the second medium are retained in the water passing plate group 3 is reduced, and a retention dead zone is formed.

It should be noted that the first sub heat exchanger plate 41 and the second sub heat exchanger plate 42 are alternately arranged, so that each of the first medium flow channel and the second medium flow channel is ensured to be a complex mesh structure, and the occurrence of a dead zone in a part of the first medium flow channel and the second medium flow channel is reduced.

Further, the first sub heat exchanger plate 41 and the second sub heat exchanger plate 42 are both provided with a flow dividing region 44 and through holes, the through holes include a first sub through hole 45, a second sub through hole 46, a third sub through hole 47 and a fourth sub through hole 48, and the first sub through hole 45, the second sub through hole 46, the third sub through hole 47 and the fourth sub through hole 48 are respectively communicated with the first medium water inlet pipe 11, the first medium water outlet pipe 12, the second medium water inlet pipe 13 and the second medium water outlet pipe 14;

the plurality of flow splitting areas 44 are arranged, the plurality of flow splitting areas 44 are respectively located at the outer sides of the first sub through hole 45, the second sub through hole 46, the third sub through hole 47 and the fourth sub through hole 48, and the plurality of flow splitting areas 44 are respectively communicated with the first sub through hole 45, the second sub through hole 46, the third sub through hole 47 and the fourth sub through hole 48;

the plurality of flow dividing regions 44 are all communicated with the V-shaped flow guiding region 43, the first sub heat exchange plate 41 and the second sub heat exchange plate 42 are provided with positioning assemblies 49, and the positioning assemblies 49 are used for positioning the adjacent first sub heat exchange plate 41 or the adjacent second sub heat exchange plate 42.

Referring to fig. 3, the first medium sequentially passes through the first medium inlet pipe 11 and the first sub through hole 45, enters the first medium flow channel, and then sequentially exits the high temperature heat exchanger of the present scheme from the second sub through hole 46 and the first medium outlet pipe 12; the second medium sequentially passes through the second medium inlet pipe 13 and the third sub-through hole 47, enters the second medium flow channel, and then is sequentially discharged out of the high-temperature heat exchanger in the scheme from the fourth sub-through hole 48 and the second medium outlet pipe 14.

The plurality of flow splitting regions 44 are respectively communicated with the first sub through holes 45 and the third sub through holes 47, so that the first medium and the second medium can diffuse around through the flow splitting regions 44, and at this time, the first medium and the second medium can flow into the V-shaped flow guiding regions 43 at a plurality of angles, thereby increasing the flow speed of the first medium and the second medium flowing into the first medium flow channel and the second medium flow channel.

In addition, the plurality of flow dividing regions 44 communicate with the second and fourth sub through

holes

46 and 48, respectively, so that the first and second media can flow into the second and fourth sub through

holes

46 and 48 from a plurality of angles, thereby further increasing the flow rate of the first and second media out of the first and second media flow passages.

Further, the rubber ring 5 includes a first sub-rubber ring 51 and a second sub-rubber ring 52, the first sub-rubber ring 51 and the second sub-rubber ring 52 are both provided with a first sealing portion 53 and a second sealing portion 54, and the first sealing portion 53 and the second sealing portion 54 are of an integrally formed structure;

the first sealing part 53 of the first sub rubber ring 51 is used for sealing the third sub through hole 47 and the fourth sub through hole 48, the second sealing part 54 of the first sub rubber ring 51 is used for sealing the outer side edges of the first sub through hole 45, the second sub through hole 46, the flow dividing region 44 and the V-shaped flow guiding region 43, and the second sealing part 54 of the first sub rubber ring 51, the first sub heat exchanger plate 41 and the second sub heat exchanger plate 42 form the first medium flow passage;

the first sealing part 53 of the second sub rubber ring 52 is used for sealing the first sub through hole 45 and the second sub through hole 46, the second sealing part 54 of the second sub rubber ring 52 is used for sealing the outer side edges of the third sub through hole 47, the fourth sub through hole 48, the flow dividing region 44 and the V-shaped flow guiding region 43, and the second sealing part 54 of the second sub rubber ring 52, the first sub heat exchanger plate 41 and the second sub heat exchanger plate 42 form the second medium flow passage;

the first sub-rubber rings 51 and the second sub-rubber rings 52 are alternately arranged between the first sub-heat exchanger plate 41 and the second sub-heat exchanger plate 42.

The first sub rubber ring 51 and the second sub rubber ring 52 are two products with the same size and the same structure, and the second sub rubber ring 52 can be formed by turning the first sub rubber ring 51 by 180 degrees, so that the first sealing part 53 of the first sub rubber ring 51 is used for sealing the third sub through hole 47 and the fourth sub through hole 48, and the first sealing part 53 of the second sub rubber ring 52 is used for sealing the first sub through hole 45 and the second sub through hole 46. In order to ensure that the first medium cannot flow in the second medium flow passage and the second medium flow passage cannot flow in the first medium flow passage, a first seal portion 53 and a second seal portion 54 are provided. The rubber ring 5 is divided into a first sub rubber ring 51 and a second sub rubber ring 52 according to the position of the first seal portion 53.

Wherein the first sealing part 53 of the first sub rubber ring 51 is used to seal the third sub through hole 47 and the fourth sub through hole 48, so that the second medium can only flow in the third sub through hole 47 and the fourth sub through hole 48, and is difficult to flow into the first medium flow passage beyond the first sealing part 53 of the first sub rubber ring 51. At this time, the second sealing portion 54 of the first sub rubber ring 51 seals the first sub through hole 45, the second sub through hole 46, the diversion area 44 and the V-shaped diversion area 43, so as to form a first medium flow passage, so that the first medium can flow through the first sub through hole 45, the diversion area 44, the V-shaped diversion area 43 and the diversion area 44 in sequence, and then is discharged from the second sub through hole 46 to the water flow plate group 3.

The first sealing portion 53 of the second sub rubber ring 52 is used to seal the first sub through hole 45 and the second sub through hole 46, so that the first medium can only flow in the first sub through hole 45 and the second sub through hole 46, and is difficult to flow into the second medium flow passage through the first sealing portion 53 of the second sub rubber ring 52. At this time, the second sealing portion 54 of the second sub rubber ring 52 seals the third sub through hole 47, the fourth sub through hole 48, the diversion area 44 and the V-shaped diversion area 43, so as to form a second medium flow channel, so that the second medium can flow through the third sub through hole 47, the diversion area 44, the V-shaped diversion area 43 and the diversion area 44 in sequence, and is discharged from the fourth sub through hole 48 to the water flow plate group 3.

In addition, the first sub rubber ring 51 and the second sub rubber ring 52 are alternately arranged, so that the first medium flow channel and the second medium flow channel are in interval arrangement, and the condition that two adjacent first medium flow channels or second medium flow channels occur is reduced.

Further, the first sub-rubber ring 51 and the second sub-rubber ring 52 are both provided with three layers of leakage-proof structures 55, and two sides of each leakage-proof structure 55 are tightly attached to the first sub-heat exchanger plate 41 and the second sub-heat exchanger plate 42.

Referring to fig. 4, one side of the leakage-proof structure 55 is tightly attached to the first sub heat exchange plate 41, the other side of the leakage-proof structure 55 is tightly attached to the second sub heat exchange plate 42, the three layers of leakage-proof structures 55 are arranged from inside to outside on the first sub rubber ring 51 and the second sub rubber ring 52, the three layers of leakage-proof structures 55 can play a role in triple protection, and the situation that the first medium and the second medium flow out of the first sub rubber ring 51 and the second sub rubber ring 52 is further reduced.

Furthermore, the outer side edges of the first sub heat exchange plate 41 and the second sub heat exchange plate 42 are respectively provided with a flange structure 40. The flanging structure 40 can facilitate the worker to recognize the front and back sides of the first sub heat exchange plate 41 and the second sub heat exchange plate 42, thereby facilitating the installation of the first sub heat exchange plate 41 and the second sub heat exchange plate 42 and saving the installation time of the water passing plate group 3.

It should be noted that the height of the edge-turning structure 40 is higher than the height of the V-shaped flow guiding area 43, so as to ensure that the edges of the first sub heat-exchanging plate 41 and the second sub heat-exchanging plate 42 can abut against each other, and when the plurality of first sub heat-exchanging plates 41 and the plurality of second sub heat-exchanging plates 42 are stacked, the edge-turning structure 40 can play a certain supporting role.

Further, the positioning assembly 49 includes a first gap 491 and a second gap 493, the first gap 491 is disposed at the top and the bottom of each of the first sub-plate 41 and the second sub-plate 42, the first gap 491 is provided with an arc plate 492, the height of the arc plate 492 is higher than the surface of each of the first sub-plate 41 and the second sub-plate 42, the arc plate 492 is shrunk inwards, and the arc plate 492 and the first sub-plate 41 or the second sub-plate 42 are formed as an integral structure;

the second notches 493 are arranged on two side edges of the first sub heat exchange plate 41 and the second sub heat exchange plate 42, the second notches 493 of the first sub heat exchange plate 41 are close to the first sub through hole 45 and the fourth sub through hole 48, and the second notches 493 of the second sub heat exchange plate 42 are close to the second sub through hole 46 and the third sub through hole 47.

It should be noted that the arc plates 492 are contracted toward the inside of the first notch 491, and when a plurality of the first sub-plate 41 and the second sub-plate 42 are stacked together, since each of the first sub-plate 41 and the second sub-plate 42 is provided with the arc plates 492, the plurality of the first sub-plate 41 and the second sub-plate 42 can be preliminarily aligned by aligning the arc plates 492 of the plurality of the first sub-plate 41 and the second sub-plate 42.

The height of the arc plates 492 is higher than the surfaces of the first sub heat exchange fins 41 and the second sub heat exchange fins 42, and the arc plates 492 shrink inward, so that the arc plates 492 of the plurality of first sub heat exchange fins 41 and the plurality of second sub heat exchange fins 42 can be stacked, the time for a worker to align the first sub heat exchange fins 41 and the second sub heat exchange fins 42 is further shortened, and the production efficiency of the high-temperature heat exchanger is improved.

Because the opening direction of the V-shaped flow guiding area 43 of the first sub heat exchange plate 41 is opposite to the opening direction of the V-shaped flow guiding area 43 of the second sub heat exchange plate 42, in order to facilitate the worker to check the opening directions of the V-shaped flow guiding areas 43 of the first sub heat exchange plate 41 and the second sub heat exchange plate 42, a second notch 493 is arranged at one end of the first sub heat exchange plate 41 close to the first sub through hole 45 and the fourth sub through hole 48, and a second notch 493 is arranged at one end of the second sub heat exchange plate 42 close to the second sub through hole 46 and the third sub through hole 47. Referring to fig. 5, when the plurality of first sub-plate 41 and the plurality of second sub-plate 42 are stacked together, the second notches 493 are arranged at intervals. If two adjacent second gaps 493 appear in the water passing plate group 3, errors inevitably occur in the installation direction of the first sub heat exchange sheet 41 or the second sub heat exchange sheet 42, so that the quality inspection difficulty of a worker on the high-temperature heat exchanger is reduced, the quality inspection time is shortened, and the quality inspection efficiency is improved.

Further, the first sub heat exchanger plate 41 and the second sub heat exchanger plate 42 are both made of food-grade stainless steel.

In the operation in-process of the high temperature heat exchanger of this scheme, food level stainless steel has that corrosion resistance is good, advantage that can direct contact food to the limited reduction this scheme high temperature heat exchanger gives off harmful substance at the operation in-process, and harm user's the condition appears.

Other configurations and operations of a high temperature heat exchanger for a drinking water dispenser with a low flow rate and a high heat transfer ratio according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high-temperature heat exchanger for a water dispenser with low flow speed and high heat exchange ratio is characterized by comprising a top plate, a bottom plate and a water passing plate group, wherein the water passing plate group is positioned between the top plate and the bottom plate, the top plate is provided with a first medium water inlet pipe, a first medium water outlet pipe, a second medium water inlet pipe and a second medium water outlet pipe, the first medium water inlet pipe, the first medium water outlet pipe, the second medium water inlet pipe and the second medium water outlet pipe are communicated with an external pipeline, the first medium water inlet pipe and the first medium water outlet pipe are positioned at two opposite angles of the top plate, and the second medium water inlet pipe and the second medium water outlet pipe are positioned at the other two opposite angles of the top plate;

the water passing plate group comprises a plurality of heat exchange plates and a plurality of rubber rings, a first medium flow channel and a second medium flow channel are formed by adjacent three heat exchange plates, the rubber rings are used for forming and sealing the first medium flow channel and the second medium flow channel, the first medium flow channel is used for allowing a first medium to flow, the second medium flow channel is used for allowing a second medium to flow, the flow direction of the first medium is opposite to that of the second medium, and the plurality of first medium flow channels and the plurality of second medium flow channels are alternately arranged in the water passing plate group;

2. The high temperature heat exchanger for a water dispenser with low flow rate and high heat exchange ratio as claimed in claim 1, wherein the heat exchanger plate is provided with a V-shaped flow guiding region, the heat exchanger plate comprises a first sub heat exchanger plate and a second sub heat exchanger plate, the opening direction of the V-shaped flow guiding region of the first sub heat exchanger plate is opposite to the opening direction of the V-shaped flow guiding region of the second sub heat exchanger plate, the first sub heat exchanger plate and the second sub heat exchanger plate are arranged alternately, and the rubber ring is located between the first sub heat exchanger plate and the second sub heat exchanger plate;

3. The high temperature heat exchanger for the water dispenser with low flow rate and high heat exchange ratio as claimed in claim 2, wherein the first sub heat exchanger plate and the second sub heat exchanger plate are both provided with a flow dividing region and through holes, the through holes comprise a first sub through hole, a second sub through hole, a third sub through hole and a fourth sub through hole, and the first sub through hole, the second sub through hole, the third sub through hole and the fourth sub through hole are respectively communicated with the first medium inlet pipe, the first medium outlet pipe, the second medium inlet pipe and the second medium outlet pipe;

4. The high-temperature heat exchanger for the water dispenser with the low flow rate and the high heat exchange ratio as claimed in claim 3, wherein the rubber ring comprises a first sub-rubber ring and a second sub-rubber ring, the first sub-rubber ring and the second sub-rubber ring are respectively provided with a first sealing portion and a second sealing portion, and the first sealing portion and the second sealing portion are of an integrally formed structure;

5. The high temperature heat exchanger for the water dispenser with low flow rate and high heat exchange ratio as recited in claim 4, wherein the first sub rubber ring and the second sub rubber ring are provided with three layers of anti-leakage structures, and two sides of the anti-leakage structures are tightly attached to the first sub heat exchanger fin and the second sub heat exchanger fin.

6. The high temperature heat exchanger for the drinking water machine with low flow speed and high heat exchange ratio as claimed in claim 2, wherein the outer edges of the first sub heat exchanger plate and the second sub heat exchanger plate are provided with flange structures.

7. The high temperature heat exchanger for the water dispenser with low flow rate and high heat exchange ratio as claimed in claim 4, wherein the positioning assembly comprises a first notch and a second notch, the first heat exchanger sub-plate and the second heat exchanger sub-plate are provided with the first notch at the top and the bottom, the first notch is provided with an arc plate, the height of the arc plate is higher than the surface of the first heat exchanger sub-plate and the surface of the second heat exchanger sub-plate, the arc plate is contracted inwards, and the arc plate and the first heat exchanger sub-plate or the second heat exchanger sub-plate are of an integrally formed structure;

8. The high temperature heat exchanger for a low flow rate and high heat transfer ratio drinking water machine as claimed in claim 2, wherein the first sub-plate and the second sub-plate are made of food grade stainless steel.