CN219977173U - Heat exchanger - Google Patents

Abstract

The utility model discloses a heat exchanger, which comprises a heat exchange tube, a base plate and cover plates arranged on two sides of the base plate, wherein water collecting tanks are respectively arranged on two sides of the base plate, a baffle plate is arranged in each water collecting tank, the baffle plate is in a plane spiral structure so as to form a spiral cold water channel on the base plate, the cover plates are covered on the cold water channels, the two cold water channels are communicated to form a heat exchange channel, and the heat exchange tube is paved in the heat exchange channel. According to the utility model, the heat exchanger is arranged in a structure that cold water channels are respectively arranged at two sides of the base plate, so that the length of the heat exchange channels in the heat exchanger is prolonged, tangential acceleration can be generated when liquid passes through a turning position by arranging the cold water channels in a spiral shape, turbulence is formed, the contact time between hot water in the heat exchange tube and the inner wall of the heat exchange tube is longer, and further, the hot water in the heat exchange tube can be fully heat exchanged with cold water in the heat exchange channels, so that the hot water in the heat exchange tube is reduced to a required temperature, and the constant temperature of the hot water output by the heat exchange tube is ensured.

Description

Heat exchanger

Technical Field

The utility model relates in particular to a heat exchanger.

Background

At present, although the heat exchanger can improve the heat exchange efficiency between the heat exchange tube and the outside and reduce the water flow temperature in the heat exchange tube to the required temperature, because the flow channel for heat exchange in the existing heat exchanger is shorter, when a large amount of water flows through the heat exchange tube, the water flow passing through the heat exchange tube at the later stage cannot be reduced to the same temperature with the water flow passing through the heat exchange tube at the earlier stage, so that the temperature of hot water output by the heat exchange tube cannot be kept constant, and the use experience of a user is poor.

Disclosure of Invention

The present utility model is directed to a heat exchanger, which solves at least one of the above problems.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a heat exchanger, includes heat exchange tube, base plate and locates the apron of base plate both sides, and the both sides of base plate are equipped with the water catch bowl respectively, are equipped with the baffle in the water catch bowl, and the baffle is plane helicitic texture to form heliciform cold water passageway on the base plate, the apron lid closes on cold water passageway, and two cold water passageways intercommunication are in order to form the heat transfer passageway, and the heat exchange tube is laid in the heat transfer passageway.

In the heat exchanger, the base plate is provided with a through hole positioned at the center of the cold water channels, the two cold water channels are communicated through the through hole, and the heat exchange tube penetrates through the through hole.

In the above heat exchanger, the heat exchange tube comprises a transfer tube penetrating through the through hole, and a first corrugated tube and a second corrugated tube respectively arranged in the two cold water channels, and the transfer tube is sleeved at the ends of the first corrugated tube and the second corrugated tube to realize the communication of the two corrugated tubes.

In the heat exchanger, the cold water channel is internally provided with the clamping ribs positioned on the base plate, and the cover plate and the clamping ribs clamp the end part of the transfer tube together.

In the heat exchanger, the partition plate is provided with a plurality of screw columns, and the cover plate is locked with the screw columns through screws.

In the above heat exchanger, a plurality of support legs which clamp the heat exchange tube together with the cover plate are arranged in the cold water channel, and the support legs are arranged at the joint of the partition plate and the base plate and are respectively connected with the partition plate and the base plate.

In the above heat exchanger, a plurality of support legs which clamp the heat exchange tube together with the cover plate are arranged in the cold water channel, and the support legs are arranged on the base plate between two adjacent partition plates and protrude out of the base plate.

In the heat exchanger, two mounting holes which are respectively communicated with the water inlet end and the water outlet end of the heat exchange channel are formed in the side wall of the base plate, and two ends of the heat exchange tube are inserted into the two mounting holes in a sealing mode.

In the heat exchanger, the sealing ring propped against the inner wall of the mounting hole is sleeved on the outer side wall of the heat exchange tube, and the clamping ring for tightly clamping the heat exchange tube is arranged on the outer side of the base plate and propped against the outer peripheral side of the mounting hole.

In the heat exchanger, a plurality of reinforcing ribs are arranged on one side, away from the base plate, of the cover plate, and the reinforcing ribs are distributed on the cover plate in a crisscross manner.

The beneficial effects of the utility model are as follows:

the utility model provides a heat exchanger, includes heat exchange tube, base plate and locates the apron of base plate both sides, and the both sides of base plate are equipped with the water catch bowl respectively, are equipped with the baffle in the water catch bowl, and the baffle is plane helicitic texture to form heliciform cold water passageway on the base plate, the apron lid closes on cold water passageway, and two cold water passageways intercommunication are in order to form the heat transfer passageway, and the heat exchange tube is laid in the heat transfer passageway. The technical scheme has the following technical effects:

according to the utility model, the heat exchanger is arranged in a structure that cold water channels are respectively arranged at two sides of the substrate, so that the heat exchange channels are arranged in the heat exchanger in a double-layer manner, the heat exchange pipes are paved in the heat exchange channels, the lengths of the heat exchange pipes and the heat exchange channels in the heat exchanger are greatly prolonged, tangential acceleration can be generated when liquid passes through a turning position by arranging the cold water channels in a spiral manner, turbulence is formed, the contact time between hot water in the heat exchange pipes and the inner wall of the heat exchange pipes is longer, and further, the hot water in the heat exchange pipes can be fully subjected to heat exchange with cold water in the heat exchange channels, so that the hot water in the heat exchange pipes is reduced to a required temperature, the heat exchange efficiency of the heat exchanger is improved, the constant temperature of the hot water output by the heat exchange pipes is ensured, the use requirements of users are met, and the use experience of the users is improved. The two cold water channels are arranged on the two sides of the same base plate, so that the assembly difficulty of the heat exchanger can be greatly simplified, and the assembly efficiency is improved.

The base plate is provided with a through hole positioned at the center of the cold water channels, the two cold water channels are communicated through the through hole, and the heat exchange tube penetrates through the through hole. The cold water channels on two sides of the base plate are communicated through the through holes, so that cold water can flow into one cold water channel from the other cold water channel, the structure is simple, the production and the processing are convenient, the through holes can be used for the heat exchange tube to pass through when the two cold water channels are communicated, the heat exchange tube can be paved in the two cold water channels after passing through the inside of the base plate, the heat exchange tube is protected, the heat exchange tube is more reliable and attractive, and the middle part of the heat exchange tube is prevented from extending out of the base plate to be broken due to collision.

The heat exchange tube comprises a transfer tube penetrating through the through hole, and a first corrugated tube and a second corrugated tube which are respectively arranged in the two cold water channels, and the transfer tube is sleeved at the end parts of the first corrugated tube and the second corrugated tube so as to realize the communication of the first corrugated tube and the second corrugated tube. Through setting up the structure of composition body with the heat exchange tube for during the installation, can install first bellows and second bellows respectively in two cold water passageway after, establish the transfer pipe box in the tip of first bellows and second bellows again, the installation is more convenient simple, reduces the assembly degree of difficulty, improves assembly efficiency.

Be equipped with the joint muscle that is located the base plate in the cold water passageway, apron and joint muscle clamp the tip of transfer pipe to prevent that the transfer pipe from rocking in the through-hole, guarantee that transfer pipe and first bellows and second bellows are connected stably, the joint muscle can support the transfer pipe simultaneously, prevents that the lateral wall of transfer pipe from laminating mutually with the base plate, in order to form the clearance that supplies rivers to pass through between the two, make cold water can form the parcel to the transfer pipe, so that cold water carries out abundant heat exchange with the hot water in the transfer pipe.

Be equipped with a plurality of screw posts on the baffle, the apron passes through screw and screw post locking, strengthens the compactness of being connected between apron and the baffle, prevents that rivers from flowing in the clearance between apron and the baffle.

The cold water channel is internally provided with a plurality of supporting feet which clamp the heat exchange tube together with the cover plate, and the supporting feet are arranged at the joint of the partition plate and the base plate and are respectively connected with the partition plate and the base plate. The supporting legs support and limit the heat exchange tube in the cold water channel, so that a water passing gap is formed between the outer peripheral side of the heat exchange tube and the partition plate, cold water in the cold water channel wraps the heat exchange tube, so that cold water and hot water in the heat exchange tube can be subjected to sufficient heat exchange, heat exchange efficiency is improved, meanwhile, the connecting positions of the partition plate and the base plate can be reinforced by the supporting legs, the partition plate is guaranteed to be installed stably, the partition plate is prevented from inclining, and sealing of the cold water channel is guaranteed.

The cold water channel is internally provided with a plurality of supporting legs which clamp the heat exchange tube together with the cover plate, the supporting legs are arranged on the base plate between the two adjacent baffle plates and are protruded out of the base plate, and the heat exchange tube is supported, and meanwhile, the structure is simple and the production and the processing are convenient.

Two mounting holes which are respectively communicated with the water inlet end and the water outlet end of the heat exchange channel are arranged on the side wall of the substrate, and two ends of the heat exchange tube are inserted into the two mounting holes in a sealing way. By sealing and inserting the heat exchange tube and the mounting hole, the tightness between the heat exchange tube and the mounting hole can be enhanced, and water flow in the heat exchange channel is prevented from leaking out through a gap between the outer side wall of the heat exchange tube and the inner side wall of the mounting hole.

The sealing ring propped against the inner wall of the mounting hole is sleeved on the outer side wall of the heat exchange tube, the clamping ring for tightly clamping the heat exchange tube is arranged on the outer side of the base plate, the clamping ring is propped against the outer peripheral side of the mounting hole, the clamping ring shields a gap between the heat exchange tube and the mounting hole, the sealing ring is prevented from being separated from the outer side wall of the heat exchange tube and the inner side wall of the mounting hole along the axial direction of the mounting hole, and the heat exchange tube and the mounting hole are guaranteed to be always sealed.

One side of the cover plate, which is away from the base plate, is provided with a plurality of reinforcing ribs, the reinforcing ribs are distributed on the cover plate in a crisscross manner, the strength of the cover plate is enhanced, the cover plate is prevented from being deformed by heating and separated from the partition plate, and then water is prevented from being mixed between the inner ring and the outer ring of the cold water channel.

The features and advantages of the present utility model will be disclosed in detail in the following detailed description and the accompanying drawings.

Drawings

The utility model is further described with reference to the drawings and detailed description which follow:

FIG. 1 is an exploded view of a heat exchanger according to a first embodiment;

FIG. 2 is a schematic diagram showing an assembly of a base plate and a heat exchange tube according to the first embodiment;

FIG. 3 is a perspective view of a substrate according to the first embodiment;

FIG. 4 is a partial cross-sectional view of a heat exchanger in accordance with a first embodiment;

fig. 5 is an assembly schematic diagram of a substrate and a heat exchange tube in the second embodiment.

Reference numerals:

100. a heat exchange tube; 110. a transfer tube; 120. a first bellows; 121. a smooth joint; 130. a second bellows; 140. a seal ring; 150. a clasp;

200. a substrate; 210. a water collection tank; 211. a partition plate; 212. a cold water channel; 213. a heat exchange channel; 214. supporting feet; 215. a mounting hole; 216. a screw post; 217. clamping ribs; 220. and a through hole.

300. A cover plate; 310. a seal; 320. reinforcing ribs;

400. and (5) a screw.

Detailed Description

The utility model provides a heat exchanger, which comprises a heat exchange tube, a base plate and cover plates arranged on two sides of the base plate, wherein water collecting grooves are respectively arranged on two sides of the base plate, a baffle plate is arranged in each water collecting groove, the baffle plate is in a plane spiral structure so as to form a spiral cold water channel on the base plate, the cover plates are covered on the cold water channels, the two cold water channels are communicated to form a heat exchange channel, and the heat exchange tube is paved in the heat exchange channel. According to the utility model, the heat exchanger is arranged in a structure that cold water channels are respectively arranged at two sides of the substrate, so that the heat exchange channels are arranged in the heat exchanger in a double-layer manner, the heat exchange pipes are paved in the heat exchange channels, the lengths of the heat exchange pipes and the heat exchange channels in the heat exchanger are greatly prolonged, tangential acceleration can be generated when liquid passes through a turning position by arranging the cold water channels in a spiral manner, turbulence is formed, the contact time between hot water in the heat exchange pipes and the inner wall of the heat exchange pipes is longer, and further, the hot water in the heat exchange pipes can be fully subjected to heat exchange with cold water in the heat exchange channels, so that the hot water in the heat exchange pipes is reduced to a required temperature, the heat exchange efficiency of the heat exchanger is improved, the constant temperature of the hot water output by the heat exchange pipes is ensured, the use requirements of users are met, and the use experience of the users is improved. The two cold water channels are arranged on the two sides of the same base plate, so that the assembly difficulty of the heat exchanger can be greatly simplified, and the assembly efficiency is improved.

The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not 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 a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

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.

Embodiment one:

the heat exchanger comprises a heat exchange tube 100 for passing hot water, a base plate 200 and two cover plates 300, wherein the two cover plates 300 are arranged on two sides of the base plate 200, water collecting grooves 210 with openings facing the cover plates 300 are respectively arranged on two sides of the base plate 200, a partition plate 211 is arranged in the water collecting grooves 210, the partition plate 211 is in a plane spiral structure in the water collecting grooves 210 so as to form a spiral cold water channel 212 on the base plate 200, the cover plates 300 are arranged on the base plate 200 so as to cover the cold water channel 212, the two cold water channels 212 on two sides of the base plate 200 are communicated and form a heat exchange channel 213 for passing cold water, the heat exchange tube 100 is paved in the heat exchange channel 213, and two ends of the heat exchange tube 100 penetrate through the side wall of the water collecting grooves 210 so as to extend out of the base plate 200. When the heat exchanger works, hot water enters the heat exchange tube 100, cold water enters the heat exchange channel 213, and when hot water flows in the heat exchange tube 100, the hot water in the heat exchange tube 100 exchanges heat with the cold water in the heat exchange channel 213 to reduce the temperature of the hot water in the heat exchange tube 100 to a required temperature. It will of course be appreciated that the planar spiral structure of the spacer 211 in this embodiment is to be understood in a broad sense, including but not limited to conventional archimedes spiral configurations, and also including the spiral configuration illustrated in fig. 2 formed by multiple segments of curved and straight lines joined together, as long as the basic features of the spiral structure are provided, i.e., from a central fixed point extending outwardly in a circle-wise fashion.

According to the utility model, the heat exchanger is arranged in a structure that the cold water channels 212 are respectively arranged at two sides of the substrate 200, so that the heat exchange channels 213 are arranged in a double-layer manner in the heat exchanger, the heat exchange tubes 100 are paved in the heat exchange channels 213, the lengths of the heat exchange tubes 100 and the heat exchange channels 213 in the heat exchanger are greatly prolonged, tangential acceleration can be generated when liquid passes through a turning position by arranging the cold water channels 212 in a spiral manner, turbulence is formed, the contact time between hot water in the heat exchange tubes 100 and the inner wall of the heat exchange tubes 100 is longer, and then hot water in the heat exchange tubes 100 can be fully subjected to heat exchange with cold water in the heat exchange channels 213, so that the hot water in the heat exchange tubes 100 is reduced to a required temperature, the heat exchange efficiency of the heat exchanger is improved, the hot water temperature output by the heat exchange tubes 100 is ensured to be constant, the use requirement of a user is met, and the use experience of the user is improved. The two cold water channels 212 are arranged on two sides of the same base plate 200, so that the assembly difficulty of the heat exchanger can be greatly simplified, and the assembly efficiency can be improved.

In order to improve the heat exchange effect of the cold water in the heat exchange channel 213 and the hot water in the heat exchange tube 100, the flow direction of the cold water in the heat exchange channel 213 and the flow direction of the hot water in the heat exchange tube 100 can be set opposite, i.e. the hot water and the cold water are in countercurrent, so that the heat exchange between the cold water in the heat exchange channel 213 and the hot water in the heat exchange tube 100 is more sufficient, and the heat exchange efficiency is improved.

In this embodiment, as shown in fig. 3, the through hole 220 is disposed on the base plate 200, the through hole 220 is located at the center of the cold water channel 212, and the cold water channels 212 on two sides of the base plate 200 are connected through the through hole 220, so that cold water can flow from the cold water channel 212 on one side of the base plate 200 into the cold water channel 212 on the other side of the base plate 200, the structure is simple, the production and processing are convenient, as shown in fig. 2, the middle part of the heat exchange tube 100 is arranged in the through hole 220 in a penetrating manner, two ends of the heat exchange tube 100 are wound in the cold water channels 212 on two sides of the base plate 200, and finally extend out of the water collecting tank 210 through the base plate 200, and the through hole 220 can also allow the heat exchange tube 100 to pass through the two cold water channels 212 while being connected, so that the heat exchange tube 100 can be laid in the two cold water channels 212 through the interior of the base plate 200, thereby protecting the heat exchange tube 100 and preventing the middle part of the heat exchange tube 100 from being broken due to collision.

The heat exchange tube 100 in this embodiment includes a transfer tube 110, a first corrugated tube 120 and a second corrugated tube 130, where the first corrugated tube 120 and the second corrugated tube 130 are respectively laid in two cold water channels 212 on two sides of the substrate 200, and the transfer tube 110 is inserted into the through hole 220 and is respectively sleeved with ends of the first corrugated tube 120 and the second corrugated tube 130, so as to realize communication between the first corrugated tube 120 and the second corrugated tube 130. Through setting the part that heat exchange tube 100 is located in cold water passageway 212 into the structure of first bellows 120 and second bellows 130 for the bellows of heat exchange tube 100 can be followed cold water passageway 212 and buckled with the crooked cold water passageway 212 of adaptation, and the uneven inner wall and the outer wall of first bellows 120 and second bellows 130 can make the hot water in the heat exchange tube 100 and the cold water outside the heat exchange tube 100 all form the torrent, flow around heat exchange tube 100, and then make cold water and hot water fully contact with the inner wall and the outer wall of heat exchange tube 100, improve heat transfer efficiency. Through setting up the heat exchange tube 100 into the structure of branch for during the installation, can install first bellows 120 and second bellows 130 respectively in two cold water passageway 212 after, establish the switching tube 110 cover again in the tip of first bellows 120 and second bellows 130, the installation is more convenient simple, reduces the assembly degree of difficulty, improves assembly efficiency.

Since the through hole 220 is required to be penetrated and arranged without influencing the flow of cold water in the through hole 220, the inner diameter of the through hole 220 is larger than the outer diameter of the adapter tube 110, in order to prevent the adapter tube 110 from shaking in the through hole 220 and ensure stable connection of the adapter tube 110 and the first corrugated tube 120 and the second corrugated tube 130, the clamping ribs 217 positioned on the base plate 200 are arranged in the cold water channel 212, when the cover plate 300 is covered on the base plate 200, one side of the adapter tube 110 is abutted against the clamping ribs 217, the other side is abutted against the cover plate 300, so that the cover plate 300 and the clamping ribs 217 jointly clamp the adapter tube 110, and meanwhile, the clamping ribs 217 can support the adapter tube 110, prevent the outer side wall of the adapter tube 110 from being attached to the base plate 200, so that a gap for water to pass through is formed between the two, and the cold water can form a package on the adapter tube 110, so that the cold water and hot water in the adapter tube 110 can be subjected to sufficient heat exchange.

In this embodiment, the cover plate 300 is detachably connected to the base plate 200 through the sealing member 310, so that sealant is avoided between the cover plate 300 and the base plate 200, and the sealant is prevented from polluting water flow to cause odor in the water flow. Preferably, the cover 300 and the base 200 are connected by a plurality of screws 400, and in order to enhance the tightness of the connection between the cover 300 and the partition 211 and prevent the flow of water in the gap between the cover 300 and the partition 211, the partition 211 is provided with a plurality of screw columns 216, the screw columns 216 are integrally provided with the partition 211 and distributed at various positions of the partition 211, and the cover 300 is locked with the respective screw columns 216 by the screws 400 so that the cover 300 abuts against the partition 211. A plurality of reinforcing ribs 320 are arranged on one side of the cover plate 300, which is away from the base plate 200, and the reinforcing ribs 320 are distributed on the cover plate 300 in a crisscross manner so as to be of a net structure, so that the strength of the cover plate 300 is enhanced, the cover plate 300 is prevented from being deformed by heating and separated from the partition plate 211, and further, water flowing between the inner ring and the outer ring of the cold water channel 212 is prevented.

As shown in fig. 3, the connection between the partition 211 and the substrate 200 is provided with support legs 214 respectively connected to the partition and the substrate, the support legs 214 are abutted against the outer side wall of the heat exchange tube 100 to support the heat exchange tube 100, and the support legs 214 are provided with a plurality of support legs. When the cover plate 300 is covered on the cold water channel 212, one side of the heat exchange tube 100 is propped against the cover plate 300, and the other side is propped against the supporting leg 214, namely, the cover plate 300 and the supporting leg 214 clamp the heat exchange tube 100 together to support and limit the heat exchange tube 100 in the cold water channel 212, so that a water passing gap is formed between the outer peripheral side of the heat exchange tube 100 and the partition plate 211 as well as between the partition plate 211 and the base plate 200, the cold water in the cold water channel 212 wraps the heat exchange tube 100, so that the cold water and the hot water in the heat exchange tube 100 can exchange heat sufficiently, the heat exchange efficiency is improved, meanwhile, the supporting leg 214 can strengthen the joint of the partition plate 211 and the base plate 200, the installation stability of the partition plate 211 is ensured, the partition plate 211 is prevented from inclining, and the sealing of the cold water channel 212 is ensured. Of course, it can be understood that the supporting leg in this embodiment may be only disposed on the substrate between two adjacent separators, and protrudes from the substrate, so as to support the heat exchange tube, and meanwhile, the structure is simple, and the production and processing are convenient.

Two mounting holes 215 are arranged on the side wall of the base plate 200, the two mounting holes 215 are respectively communicated with the water inlet end and the water outlet end of the heat exchange channel 213, and the two ends of the heat exchange tube 100 are respectively inserted into the two mounting holes 215 in a sealing manner so as to extend out of the cold water channel 212 through the mounting holes 215. By sealing and inserting the heat exchange tube 100 into the mounting hole 215, the sealing performance between the heat exchange tube 100 and the mounting hole 215 can be enhanced, and water flow in the heat exchange channel 213 is prevented from leaking out through the gap between the outer side wall of the heat exchange tube 100 and the inner side wall of the mounting hole 215.

In this embodiment, as shown in fig. 4, the end portions of the first bellows 120 and the second bellows 130 are provided with the smooth joint 121, the smooth joint 121 is in sealing connection with the mounting hole 215 through the sealing ring 140, the sealing ring 140 is sleeved outside the smooth joint 121 and abuts against the inner wall of the mounting hole 215, the sealing effect is good, the clamping ring 150 is arranged outside the substrate 200, the clamping ring 150 tightly abuts against the outer side wall of the smooth joint 121 and abuts against the substrate 200 on the outer peripheral side of the mounting hole 215, so that a gap between the smooth joint 121 and the mounting hole 215 is shielded, the sealing ring 140 is prevented from being separated from the space between the outer side wall of the smooth joint 121 and the inner side wall of the mounting hole 215 along the axial direction of the mounting hole 215, and the heat exchange tube 100 and the mounting hole 215 are ensured to be always sealed.

Embodiment two:

the difference between this embodiment and the first embodiment is that, as shown in fig. 5, in this embodiment, a plurality of partition plates 211 are provided, one end of each partition plate 211 is connected to an inner wall of the water collecting tank 210, an installation gap is provided between the other end of each partition plate 211 and the inner wall of the water collecting tank 210, and two adjacent partition plates 211 are respectively connected to two inner walls of the water collecting tank 210, so that two adjacent partition plates 211 in the water collecting tank 210 are arranged in parallel and offset, and further an S-shaped cold water channel 212 is formed on the base plate 200, and the heat exchange tube 100 extends along the cold water channel 212 and is bent around the end of each partition plate 211 when passing through the installation gap between the end of each partition plate 211 and the inner wall of the water collecting tank 210, so that the heat exchange tube 100 is adapted to the cold water channel 212.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (10)

1. A heat exchanger, characterized by: the heat exchange device comprises heat exchange tubes, a base plate and cover plates arranged on two sides of the base plate, wherein water collecting tanks are respectively arranged on two sides of the base plate, a partition plate is arranged in each water collecting tank, each partition plate is of a plane spiral structure, a spiral cold water channel is formed on the base plate, the cover plates are covered on the cold water channels, the two cold water channels are communicated to form a heat exchange channel, and the heat exchange tubes are paved in the heat exchange channels.

2. A heat exchanger according to claim 1, wherein: the base plate is provided with a through hole positioned at the center of the cold water channels, the two cold water channels are communicated through the through holes, and the heat exchange tube penetrates through the through holes.

3. A heat exchanger according to claim 2, wherein: the heat exchange tube comprises a transfer tube penetrating through the through hole, and a first corrugated tube and a second corrugated tube which are respectively arranged in the two cold water channels, and the transfer tube is sleeved at the end parts of the first corrugated tube and the second corrugated tube so as to realize the communication of the first corrugated tube and the second corrugated tube.

4. A heat exchanger according to claim 3, wherein: the cold water channel is internally provided with clamping ribs positioned on the base plate, and the cover plate and the clamping ribs clamp the end part of the transfer tube together.

5. A heat exchanger according to claim 1, wherein: the baffle is provided with a plurality of screw columns, and the cover plate is locked with the screw columns through screws.

6. A heat exchanger according to claim 1, wherein: the cold water channel is internally provided with a plurality of supporting feet which are clamped with the cover plate together for the heat exchange tube, and the supporting feet are arranged at the joint of the partition plate and the base plate and are respectively connected with the partition plate and the base plate.

7. A heat exchanger according to claim 1, wherein: the cold water channel is internally provided with a plurality of supporting feet which are clamped with the cover plate together for the heat exchange tube, and the supporting feet are arranged on the base plate between two adjacent baffle plates and protrude out of the base plate.

8. A heat exchanger according to any one of claims 1 to 7, wherein: two mounting holes which are respectively communicated with the water inlet end and the water outlet end of the heat exchange channel are formed in the side wall of the substrate, and two ends of the heat exchange tube are inserted into the two mounting holes in a sealing mode.

9. A heat exchanger as claimed in claim 8, wherein: the heat exchange tube is characterized in that a sealing ring propped against the inner wall of the mounting hole is sleeved on the outer side wall of the heat exchange tube, a clamping ring for tightly clamping the heat exchange tube is arranged on the outer side of the base plate, and the clamping ring is propped against the outer peripheral side of the mounting hole.

10. A heat exchanger according to claim 1, wherein: the cover plate is characterized in that a plurality of reinforcing ribs are arranged on one side, away from the base plate, of the cover plate, and the reinforcing ribs are distributed on the cover plate in a crisscross mode.