CN222069373U - Heat exchange tube assembly, heat exchange mechanism, water outlet device and water purification equipment - Google Patents

Abstract

The utility model relates to the technical field of household electrical appliances, and discloses a heat exchange tube assembly, a heat exchange mechanism, a water outlet device, and a water purification device. The heat exchange tube assembly of the utility model adopts a continuously bent second pipeline, which is formed by bending a complete pipeline. There is no need to set a transition seal at the bend, which can significantly reduce leakage points, greatly simplify the pipeline structure, save structural space, reduce assembly difficulty, and reduce the manufacturing cost of the product. The heat exchange tube assembly of the utility model uses hot water to preheat cold water and cools the hot water into warm water. The heat exchange tube assembly includes a first pipeline and a second pipeline. The second pipeline is sleeved inside the first pipeline, and the second pipeline is a continuously bent tube.

Description

Heat exchange tube assembly, heat exchange mechanism, water outlet device and water purification equipment

Technical Field

The utility model relates to the technical field of household appliances, in particular to a heat exchange tube assembly, a heat exchange mechanism, a water outlet device and water purifying equipment.

Background

The household water purifier is a common household appliance device for performing deep filtration and purification treatment on water, thereby providing drinking water meeting the requirements for users.

In the current purifier that takes heating tap, the heat transfer pipe all adopts the mode of multistage pipe concatenation to set up to extension heat transfer path improves heat exchange efficiency, but the splice position of this kind of heat transfer pipe need set up the switching sealing member, in order to realize that the pipeline is connected and the water route is sealed, this will lead to heat transfer pipe structure complicacy, the assembly degree of difficulty is big, leads to the manufacturing cost of product high, forms the leakage point in switching sealing member department easily moreover, causes very big trouble for the pipeline maintenance.

Disclosure of utility model

In view of the above, the utility model provides a heat exchange tube assembly, a heat exchange mechanism, a water outlet device and water purification equipment, so as to solve the problems of complex structure, high assembly difficulty, high manufacturing cost and easy occurrence of leakage points of the existing water purification machine with a heating faucet.

In a first aspect, the present utility model provides a heat exchange tube assembly for preheating cold water with hot water and cooling the hot water to warm water, the heat exchange tube assembly comprising:

A first pipeline;

the second pipeline is sleeved in the first pipeline and is a continuous bent pipe.

The beneficial effects are that: the heat exchange tube assembly can preheat cold water by using hot water and cool the hot water into warm water, and comprises a first pipeline and a second pipeline, wherein the second pipeline is sleeved in the first pipeline, and the second pipeline is a continuous bent pipe. The second pipeline which is continuously bent is formed by continuously bending a complete pipeline, and a transfer sealing piece is not required to be arranged at the bending part, so that leakage points can be remarkably reduced, the pipeline structure is greatly simplified, the structural space is saved, the assembly difficulty is reduced, and the manufacturing cost of a product is reduced.

In an alternative embodiment, the wall of the second pipeline is a curved wall or a folded wall.

The beneficial effects are that: the heat exchange tube component is characterized in that the tube wall is a curved tube wall or a second pipeline with a folded tube wall, and compared with a straight tube wall, the heat exchange tube component has larger heat dissipation area and higher heat exchange efficiency.

In an alternative embodiment, a water passing space is provided between the inner wall of the first pipe and the outer wall of the second pipe.

The beneficial effects are that: according to the heat exchange tube assembly, the water passing space is formed between the inner wall of the first pipeline and the outer wall of the second pipeline, the water passing space forms the cold water channel, the hot water channel is formed in the second pipeline, the cold water and the hot water exchange heat through the heat transfer of the side wall of the second pipeline, the purposes of cold water preheating and hot water cooling are achieved, the heat exchange tube assembly is ingenious in design, the loss of hot water heat energy can be reduced, the heat energy of hot water is fully utilized, and the heat exchange efficiency is improved.

In an alternative embodiment, the second conduit is a bellows.

The beneficial effects are that: in the heat exchange tube assembly, the second pipeline is preferably a corrugated pipe, the pipeline is easy to obtain and bend and form, leakage points can be reduced, and the manufacturing cost is low.

In a second aspect, the present utility model provides a heat exchange mechanism for a water purification apparatus, comprising:

A main body;

The heating device is arranged in the main body and is used for heating cold water or preheated cold water into hot water;

the heat exchange tube assembly is arranged in the main body.

The beneficial effects are that: according to the heat exchange mechanism, the main body, the heating device and the heat exchange tube assembly are arranged in the main body, the heating device can heat cold water or preheated cold water into hot water, and the heat exchange tube assembly can preheat the cold water by using the hot water and cool the hot water into warm water. The heat exchange mechanism is of an integral structure, and the heating device and the heat exchange tube assembly are arranged on the main body, so that the structure of the heat exchange mechanism is more compact and reasonable, and the heat exchange mechanism is integral, so that the heat exchange mechanism is convenient to install, maintain and replace, and great convenience can be provided for users to use. In addition, this kind of heat transfer mechanism can utilize the hot water of having prepared to preheat cold water, make full use of the heat energy of hot water, improve energy utilization efficiency, and at the in-process that hot water preheated cold water, hot water can cooling down becomes warm water moreover, make this kind of heat transfer mechanism can directly provide warm water, the user need not wait just can drink warm water that the temperature is suitable, accord with the drinking habit of national people, make user's use experience very good, and because cold water has been preheated by hot water, when heating up the device heats the back cold water of preheating, compare with current heat transfer mechanism, under the condition of adopting the same power (like 2100W) to heat, can increase the discharge of every minute, shorten user's water intaking time, further promote user's use experience.

In an alternative embodiment, the heat exchange tube assembly comprises a plurality of sections of heat exchange tube components which are communicated, and a plurality of sections of heat exchange tube components are arranged around the heating device.

The beneficial effects are that: the heat exchange mechanism of the utility model comprises the heat exchange pipe sub-components which are communicated in a multi-section way, the multi-section heat exchange pipe sub-components are arranged on the main body around the heating device, and the heat exchange mechanism of the structure is of an integral structure, fully utilizes the structural space, has compact and reasonable structure and is convenient for structural arrangement.

In an alternative embodiment, the heat generating device is disposed at a central position of the main body, and the heat exchange tube sub-members are disposed circumferentially around the heat generating device.

The beneficial effects are that: according to the heat exchange mechanism, the heating device is arranged at the center of the main body, the heat exchange pipe sub-pieces are circumferentially arranged around the heating device, and the heat exchange mechanism with the structure is compact and reasonable in structure and convenient to structure and arrange.

In an alternative embodiment, the first pipeline water inlet of the heat exchange tube assembly is a cold water inlet, the first pipeline water outlet is connected with the heating device water inlet, the heating device water outlet is connected with the second pipeline water inlet, and the second pipeline water outlet is connected with the warm water outlet.

The beneficial effects are that: the heat exchange mechanism can remarkably save the arrangement space of the mechanism, has compact structure, is beneficial to full heat exchange and reduces heat loss.

In an alternative embodiment, the first conduit is formed in the body.

The beneficial effects are that: according to the heat exchange mechanism, the first pipeline is not an independent component, but is directly formed on the main body, so that the parts contained in the heat exchange mechanism are reduced, the installation difficulty is reduced, and the full utilization of the installation space of the main body is realized.

In an alternative embodiment, the device further comprises an upper cover, wherein the upper cover is arranged on the top of the main body.

The beneficial effects are that: according to the heat exchange mechanism, the upper cover is arranged, so that the structure of the heat exchange mechanism is further perfected, a more complete whole is formed, the whole structure is convenient to install and arrange, the tightness of the heat exchange mechanism can be improved, and the maintenance and replacement of the internal structure of the main body are also facilitated.

In an alternative embodiment, the second pipe outlet is connected to the upper cover in a sealing manner.

The beneficial effects are that: the heat exchange mechanism is in sealing connection with the upper cover through the water outlet of the second pipeline, fully utilizes the structural space of the upper cover, can also form sealing on the second pipeline, and is beneficial to the communication and the installation arrangement of waterways.

In an alternative embodiment, the device further comprises a temperature control component, wherein the temperature control component is arranged on the main body and is used for preventing the heat generating device from being over-heated.

The beneficial effects are that: the heat exchange mechanism further comprises a temperature control component, when the temperature of the heating device is overheated, the temperature control component can cut off a circuit of the heating device, overheat protection is achieved, and therefore the use safety of the heat exchange mechanism is guaranteed.

In a third aspect, the present utility model also provides a water outlet device, comprising: the shell and the heat exchange mechanism arranged in the shell.

Because the water outlet device comprises the heat exchange mechanism, the water outlet device has the same beneficial effects as the heat exchange mechanism, and therefore, the description is omitted.

In an alternative embodiment, the water outlet means is a tap.

The beneficial effects are that: the water outlet device, particularly a tap, can be applied to water purifying equipment, realizes the function of directly discharging hot water and warm water, meets different use requirements of users, and improves the use experience of the users.

In a fourth aspect, the present utility model further provides a water purifying apparatus, which includes the heat exchange mechanism or the water outlet device.

Because the water purifying equipment comprises the heat exchange tube assembly or the heat exchange mechanism or the water outlet device, the water purifying equipment has the same beneficial effects as the heat exchange tube assembly, the heat exchange mechanism and the water outlet device, and therefore, the water purifying equipment is not repeated.

Drawings

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

FIG. 1 is a schematic view of a heat exchange mechanism of the present utility model;

FIG. 2 is a cross-sectional view of the heat exchange mechanism of the present utility model;

FIG. 3 is a schematic diagram of the flow direction of the waterway when the heat exchange mechanism of the present utility model is in operation;

FIG. 4 is a schematic cross-sectional view of the water outlet device of the present utility model.

Reference numerals illustrate:

1. a first pipeline; 101. a first pipeline water inlet; 102. a first pipeline water outlet;

2. a second pipeline; 201. a second pipeline water inlet; 202. a second pipeline water outlet;

3. A main body; 301. a central bore;

4. a heating device; 401. a water inlet of the heating device; 402. a water outlet of the heating device;

5. An upper cover;

6. A boiled water outlet;

7. a warm water pipe; 701. a water outlet of the warm water pipe;

8. Sealing sleeve;

9. A lower cover;

10. a housing;

11. a cold water inlet;

12. A first temperature control component;

13. A second temperature control member;

14. And a water outlet of the water outlet device.

Detailed Description

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

Embodiments of the heat exchange tube assembly, the heat exchange mechanism, the water outlet device and the water purifying apparatus of the present utility model are described below with reference to fig. 1 to 4.

According to a first aspect of the present utility model, there is provided a heat exchange tube assembly for preheating cold water with hot water and cooling the hot water into warm water, the heat exchange tube assembly including a first tube 1 and a second tube 2, the second tube 2 being sleeved inside the first tube 1, the second tube 2 being a continuous bent tube.

The heat exchange tube assembly adopts a second pipeline which is continuously bent, wherein the continuous refers to the fact that the second pipeline 2 is a complete and seamless pipeline, and the bending refers to the form of the second pipeline 2, namely the second pipeline 2 is a pipeline formed by bending a complete longer pipeline. The transfer sealing piece is not required to be arranged at the bending part, so that leakage points can be remarkably reduced, the pipeline structure is greatly simplified, the structural space is saved, the assembly difficulty is reduced, and the manufacturing cost of a product is reduced.

In addition, this kind of heat exchange tube subassembly can utilize the hot water of having prepared to preheat cold water, make full use of the heat energy of hot water, improve energy utilization efficiency, and at the in-process that hot water preheated cold water, hot water can cooling down become warm water, make this kind of heat exchange tube subassembly can directly provide warm water, the user need not wait just can drink warm water that the temperature is suitable, accord with national drinking habit, make user's use experience very good, and because cold water has been preheated by hot water, when heating up the device heats the back cold water of preheating, compared with current heat exchange mechanism, under the condition of adopting the same power (like 2100W) to heat, can increase the discharge of water per minute, shorten user's water intaking time, further promote user's use experience.

The second pipeline 2 is sleeved in the first pipeline 1, so that the whole setting space of the mechanism can be remarkably saved, the structure is compact, the full heat exchange is facilitated, and the heat loss is reduced. In addition, the axial lengths of the first pipeline 1 and the second pipeline 2 should be selected according to design requirements, and it is preferable that the lengths of the first pipeline 1 and the second pipeline 2 are the same. The longer the axial length of the first pipeline 1 and the second pipeline 2, the longer the heat exchange path between the cold water in the first pipeline 1 and the hot water in the second pipeline 2 is, which is beneficial to the full heat exchange of the two pipelines

In the present embodiment, the axial directions of the first pipe 1 and the second pipe 2 are parallel to the axial direction of the main body 3.

Further, the wall of the second pipeline 2 is a curved surface wall or a folded surface wall. Compared with the straight pipe wall, the curved pipe wall or the folded pipe wall has larger heat dissipation area and higher heat exchange efficiency.

In this embodiment, the wall of the second pipeline 2 is preferably a folded wall.

In other embodiments, the wall of the second pipeline 2 may be a curved wall, which is easier to manufacture and shape.

Further, a water passing space is arranged between the inner wall of the first pipeline 1 and the outer wall of the second pipeline 2.

The inner wall of the first pipeline 1 and the outer wall of the second pipeline 2 are provided with water passing spaces, the water passing spaces form cold water channels, hot water channels are formed in the second pipeline 2, cold water and hot water are subjected to heat exchange through heat transfer of the side wall of the second pipeline 2, the purposes of cold water preheating and hot water cooling are achieved, the design of the heat exchange pipe assembly is ingenious, the loss of hot water heat energy can be reduced, the hot water heat energy is fully utilized, and the heat exchange efficiency is improved.

Of course, the wall of the second pipe 2 should be made of a material capable of heat transfer, in this embodiment, the second pipe 2 is formed by using a metal pipe, that is, the wall of the second pipe 2 is made of a metal material, and the inner space of the metal pipe is the second pipe 2, so as to ensure the heat transfer effect.

In the present embodiment, the first pipeline 1 and the second pipeline 2 are coaxially arranged, so that the water passing space between the inner wall of the first pipeline 1 and the outer wall of the second pipeline 2 is uniform.

In this embodiment, the inner diameter of the first pipeline 1 is larger than the outer diameter of the second pipeline 2, the first pipeline 1 is sleeved outside the second pipeline 2, and a water passing space is formed between the inner wall of the first pipeline 1 and the outer wall of the second pipeline 2, and cold water in the first pipeline 1 passes through the water passing space. Of course, the size of the water passing space (or the radial dimensions of the first pipeline 1 and the second pipeline 2) can be selected and set according to the requirement, and the embodiment is not limited thereto.

In this embodiment, the second pipeline 2 is an S-shaped continuous bent pipe. The S-shaped continuous bending pipe has no edges and corners at the bending positions, and the internal stress at the bending positions is dispersed, so that the pipeline structure is firmer and more durable.

Further, the second pipeline 2 is a corrugated pipe. The corrugated pipe is easy to obtain, easy to bend and form, capable of reducing leakage points and low in manufacturing cost.

The embodiment also provides a heat exchange mechanism, and this heat exchange mechanism is used for water purification unit, includes: the main body 3, the heating device 4 and the heat exchange tube assembly are arranged in the main body 3, and the heating device 4 is used for heating cold water or preheated cold water into hot water; the heat exchange tube assembly is provided in the main body 3, preheats cold water with hot water, and cools the hot water into warm water.

The heat exchange mechanism is of an integral structure, the heating device 4 and the heat exchange tube assembly are arranged on the main body 3, the structural integration level is high, the structure of the heat exchange mechanism is more compact and reasonable, and the heat exchange mechanism is integral, so that subsequent installation, maintenance and replacement are convenient, and great convenience can be provided for users.

In addition, this kind of heat transfer mechanism can utilize the hot water of having prepared to preheat cold water, make full use of the heat energy of hot water, improve energy utilization efficiency, and at the in-process that hot water preheated cold water, hot water can cooling down becomes warm water moreover, make this kind of heat transfer mechanism can directly provide warm water, the user need not wait just can drink warm water that the temperature is suitable, accord with the drinking habit of national people, make user's use experience very good, and because cold water has been preheated by hot water, when heating up the device heats the back cold water of preheating, compare with current heat transfer mechanism, under the condition of adopting the same power (like 2100W) to heat, can increase the discharge of every minute, shorten user's water intaking time, further promote user's use experience.

The main body 3 is a bearing structure of the heat exchange mechanism, and has a certain structural strength, so that the heating device 4 and the heat exchange tube assembly are arranged conveniently. In addition, the main body 3 is made of a high-temperature resistant material, or the main body 3 is made of a material with heat preservation performance, so that the loss of hot water heat energy is reduced, and the heat exchange efficiency of the heat exchange mechanism is ensured.

Further, the whole body 3 is of a columnar structure, so that on one hand, the structural arrangement of the heating device 4 and the heat exchange tube assembly is facilitated, and on the other hand, the occupied space of the columnar structure body 3 is small, and therefore, the structural arrangement of the heat exchange mechanism in the water outlet device is also facilitated.

The heating device 4 is disposed in the main body 3, and is used for heating cold water or preheated cold water into hot water, that is, the heating device 4 can heat cold water (the temperature is usually normal temperature, such as 25 °) from an external pipeline or a water tank into hot water (the temperature is usually above 93 °), and the heating device 4 can heat cold water (the temperature is higher than cold water but lower than hot water and warm water) preheated by the heat exchange mechanism into hot water.

The heating device 4 can heat cold water or preheated cold water, and in this embodiment, the heating device 4 has a columnar structure, specifically, a cylinder, so as to be mounted on the main body 3. In addition, in the embodiment, the heating device 4 adopts a rare earth thick film rapid heating element, and the heating element has the advantages of rapid heating start, high efficiency, energy saving, safety, stability, long service life and the like.

In the present embodiment, the heat generating device 4 is disposed along the axial direction of the main body 3, that is, the axial direction of the heat generating device 4 is disposed in parallel with the axial direction of the main body 3.

Further, the heat generating device 4 is provided at the center of the main body 3.

In the present embodiment, a central hole 301 is formed in the central position of the main body 3, and the heat generating device 4 is disposed in the central hole 301, that is, the axial direction of the heat generating device 4 coincides with the axial direction of the main body 3.

The inside of the heating device 4 is a water passing cavity, the heating device 4 is provided with a heating device water inlet 401 and a heating device water outlet 402, the heating device water inlet 401 and the heating device water outlet 402 are both communicated with the water passing cavity, cold water or preheated cold water enters the water passing cavity from the heating device water inlet 401, the heating device 4 heats the cold water or preheated cold water in the water passing cavity, and heated hot water flows out from the heating device water outlet 402.

A heat exchange tube assembly is provided in the main body 3, which preheats cold water with hot water and cools the hot water to warm water (higher in temperature than the cold water and the preheated cold water, but lower than the hot water).

Further, the heat exchange tube assembly comprises a plurality of sections of heat exchange tube components which are communicated, and the plurality of sections of heat exchange tube components are arranged around the heating device 4.

The second pipeline 2 of the heat exchange pipe assembly is formed by bending a whole long pipe, the first pipeline 1 of the heat exchange pipe assembly is sleeved outside the second pipeline 2, the first pipeline 1 is also formed by bending the second pipeline 2, and each bending section is a section of heat exchange pipe sub-component.

The heat exchange tube assembly can select the length of a heat exchange path according to the needs so as to meet the demands of no use, and has the advantages of compact structure, small occupied space, convenient structural arrangement, high heat exchange efficiency and good heat exchange effect. Specifically, the multi-section heat exchange tube sub-components are arranged in an S-shaped bending manner.

Further, the heat exchange tube sub-parts are circumferentially arranged around the heat generating device 4. The heat exchange mechanism with the structure is compact and reasonable in structure, fully utilizes the arrangement space on the main body 3, and facilitates structural arrangement. Specifically, the heat exchange tube segments are arranged at uniform intervals around the heat generating device 4 in the circumferential direction.

The first pipeline 1 comprises a first pipeline water inlet 101 and a first pipeline water outlet 102, the second pipeline 2 is provided with a second pipeline water inlet 201 and a second pipeline water outlet 202, the first pipeline water inlet 101 is a cold water inlet, the first pipeline water outlet 102 is connected with a heating device water inlet 401, the heating device water outlet 402 is connected with the second pipeline water inlet 201, and the second pipeline water outlet 202 is connected with a hot water pipe water outlet 701.

It will be appreciated that the connections are sealed connections in order to avoid leakage of water from the pipe connection.

In this embodiment, the first pipeline 1 is a cold water preheating pipe, the first pipeline 1 has a first pipeline water inlet 101 and a first pipeline water outlet 102, the first pipeline water inlet 101 is a cold water inlet, and cold water in an external pipeline or cold water in a water tank enters the first pipeline 1 from the first pipeline water inlet 101. The second pipeline 2 is a hot water cooling pipe, hot water heated by the heating device 4 flows from the heating device water outlet 402 to the second pipeline water inlet 201, and then hot water flows into the second pipeline 2, and as the first pipeline 1 is sleeved outside the second pipeline 2, cold water in the first pipeline 1 and hot water in the second pipeline 2 exchange heat through the pipe wall of the second pipeline 2, the cold water in the first pipeline 1 is gradually heated and preheated, and meanwhile, the hot water in the second pipeline 2 is cooled. The preheated cold water sequentially passes through the first pipeline water outlet 102 and the heating device water inlet 401 to enter the water passing cavity of the heating device 4, so that the heating device 4 can heat the preheated cold water, and warm water formed after the temperature of the hot water is reduced is connected with the warm water pipe water outlet 701 through the second pipeline water outlet 202, thereby realizing the output of the warm water.

Further, the first pipeline 1 is formed on the main body 3.

In this embodiment, the first pipeline 1 is not an independent component, but the first pipeline 1 is directly formed on the main body 3, so that the arrangement can reduce the parts contained in the heat exchange mechanism, reduce the installation difficulty, realize the full utilization of the space arranged on the main body 3, and make the structure integrated better.

Specifically, a plurality of through holes are formed in the circumferential direction on the main body 3, and the through holes are arranged at uniform intervals around the center hole 301, and the axial direction of the through holes is parallel to the axial direction of the main body 3, and the through holes constitute the first pipeline 1. In the present embodiment, the through holes are provided with six.

Further, the side wall of the main body 3 is provided with a boiled water outlet 6, and the axial direction of the boiled water outlet 6 is perpendicular to the axial direction of the main body 3, so that the structural space is reasonably utilized, structural interference is avoided, and convenience is provided for pipeline connection. The boiled water outlet 6 should be connected with the heating device outlet 402, and in order to avoid water leakage at the pipeline connection part, the boiled water outlet 6 is connected with the heating device outlet 402 in a sealing way.

Further, the heat exchange mechanism of the embodiment further includes an upper cover 5, and the upper cover 5 is covered on the top of the main body 3. The shape of the upper cover 5 matches the shape of the cross section of the top of the main body 3 perpendicular to the axial direction.

The second pipeline water outlet 202 is in sealing connection with the upper cover 5, and preferably, the sealing connection between the second pipeline water outlet 202 and the upper cover 5 is realized in a welding mode.

Further, in order to facilitate the connection of the pipeline, the upper cover 5 is further provided with a warm water pipe 7 penetrating through the upper cover 5, the warm water pipe 7 is used for outputting warm water (boiled water), the water inlet of the warm water pipe is in sealing connection with the water outlet 202 of the second pipeline, and the water outlet 701 of the warm water pipe is connected with the water outlet 14 of the water outlet device.

The axial direction of the warm water pipe 7 is parallel to the axial direction of the main body 3, and the warm water pipe 7 is arranged through the upper cover 5, namely, one part of the warm water pipe 7 is arranged on one side of the upper cover 5 facing the main body 3, the other part is arranged in the upper cover 5, and the other part is arranged on one side of the upper cover 5 away from the main body 3.

The warm water pipe 7 has a warm water pipe water inlet and a warm water pipe water outlet 701, and for convenience of piping connection, the warm water pipe water inlet is disposed at a side of the upper cover 5 facing the main body 3, and the warm water pipe water outlet 701 is disposed at a side of the upper cover 5 facing away from the main body 3.

The warm water pipe water inlet is connected with the second pipeline water outlet 202, and the warm water pipe water outlet 701 is connected with the water outlet 14 of the water outlet device. To avoid water leakage at the pipeline connection, the warm water pipe water inlet is in sealing connection with the second pipeline water outlet 202, and the warm water pipe water outlet 701 is in sealing connection with the water outlet 14 of the water outlet device.

The heat exchange mechanism of the embodiment further comprises a lower cover 9, and the lower cover 9 is arranged at the bottom of the main body 3 in a covering manner. The shape of the lower cover 9 matches the shape of the cross section of the bottom of the main body 3 perpendicular to the axial direction.

The upper cover 5 and the lower cover 9 are matched with each other, and are used for fixedly mounting the heating device 4 and the second pipeline 2 on the main body 3.

In this embodiment, the second pipeline 2 is formed by bending a whole long pipe, and is disposed in the first pipeline 1, and is sealed in the main body 3 by the upper cover 5 and the lower cover 9 together, preferably by adopting a welding sealing mode, and particularly, a sealing sleeve 8 is disposed at a position close to the lower cover 9, and the second pipeline 2 is in sealing connection with the lower cover 9 through the sealing sleeve 8, so as to enhance the sealing and fixing of the second pipeline 2.

Further, the heat exchange mechanism of the embodiment further includes a temperature control component, where the temperature control component is disposed on the main body 3 and is used for preventing the heat generating device 4 from being too high in temperature.

Through setting up the control by temperature change part, when the device 4 that generates heat temperature overheated, the control by temperature change part can cut off the circuit of the device 4 that generates heat, realizes overheat protection to guarantee the life of the device 4 that generates heat, and the safety in utilization of whole heat transfer mechanism.

In the present embodiment, the temperature control member includes a first temperature control member 12 and a second temperature control member 13, and the first temperature control member 12 and the second temperature control member 13 are both provided on the main body 3. The first temperature control member 12 is disposed above the second temperature control member 13.

The first temperature control component 12 is an automatic temperature control component, the protection temperature of the first temperature control component 12 is 195 ℃, namely, when the temperature of the heating device 4 reaches 195 ℃, the power is turned off, the heating device 4 stops working, and when the temperature of the heating device 4 is reduced to 100 ℃, the heating device is automatically reset. The second temperature control component 13 is a manual temperature control component, the protection temperature of the second temperature control component 13 is 210 ℃, namely, when the temperature of the heating device 4 reaches 210 ℃, the heating device 4 is powered off and stops working, and after the heating device 4 is powered off, the heating device can restart working only by manual reset. The dual temperature control protection can effectively overheat-protect the heating device, so that the use safety of the heat exchange mechanism is better.

As shown in fig. 3 (the water flow direction is shown by an arrow), in order to further understand the heat exchange principle of the heat exchange mechanism of the present embodiment, the heat exchange process of the heat exchange mechanism of the present embodiment will be described below with reference to the accompanying drawings:

When the heat exchange mechanism just starts to work, cold water enters the first pipeline 1 from the first pipeline water inlet 101, then flows out from the first pipeline water outlet 102, further enters the heating device 4 through the heating device water inlet 401 to be heated to form hot water, the hot water flows out from the heating device water outlet 402 and further enters the second pipeline 2 through the second pipeline water inlet 201, as the first pipeline 1 is sleeved outside the second pipeline 2, the cold water in the first pipeline 1 and the hot water in the second pipeline 2 are subjected to heat exchange through the pipe wall of the second pipeline 2, the cold water in the first pipeline 1 is gradually warmed up and preheated (the temperature of the cold water is increased from T1 to T2), meanwhile, the hot water in the second pipeline 2 is cooled down (the temperature of the hot water is reduced from T3 to T4), warm water (cooked water) is formed, the warm water is connected with the warm water pipe water outlet 701 through the second pipeline water outlet 202, and the warm water pipe water outlet 701 is connected with the water outlet 14, so that the output of warm water is realized for a user to use.

After the treatment of the heat exchange mechanism in this embodiment, the water outlet 14 of the water outlet device can directly output warm water, so that a user can directly drink the water.

The formula q=c _p ×m×Δt according to the heating principle, where Q represents the total heat absorbed or released by the substance, C _p represents the isobaric specific heat capacity, m represents the mass of the substance, and Δt represents the temperature change (temperature difference) of the substance.

When the total heat Q is unchanged, m=q/(cp×Δt), the smaller the temperature difference Δt, the larger m. When the cold water temperature T1 is 25 degrees, the preheated cold water temperature T2 is 70 degrees, the hot water temperature T3 is 95 degrees after heat exchange by the heat exchange mechanism, and the warm water temperature T4 is 50 degrees after heat exchange by the heat exchange mechanism.

Experimental data are as follows:

The comparison objects are as follows: the existing heat exchange mechanism (namely, heat exchange mechanism A) capable of only discharging hot water and the heat exchange mechanism (namely, heat exchange mechanism B) of the embodiment

As can be seen from the above comparison data, in the case of heating with the same power, the water outlet flow rate of the heat exchange mechanism a is 0.32L, and the water outlet flow rate of the heat exchange mechanism B can reach 0.85L. That is, the heat exchange mechanism of this embodiment has larger water flow, can obviously shorten the user water taking time, and user experience is better.

As shown in fig. 4, this embodiment further provides a water outlet device, including: the housing 10 and the heat exchanging mechanism provided in the housing 10.

The shell 10 is the external structure of the water outlet device and is also a bearing structure, and the heat exchange mechanism provided by the embodiment is arranged in the shell 10, so that the heat exchange mechanism is of an integral structure, is convenient to install, maintain and replace, and is compact in structure, small in occupied space and easy to arrange in the water outlet device. Moreover, because the heat exchange mechanism is arranged, the water outlet device can preheat cold water by using prepared hot water, fully utilizes the heat energy of the hot water, improves the energy utilization efficiency, and can cool down to become warm water in the process of preheating the cold water by using the hot water, so that the water outlet device can directly provide warm water, a user can drink warm water with proper temperature without waiting, the water drinking habit of people is met, the use experience of the user is very good, and because the cold water is preheated by the hot water, when the heat generation device heats the preheated cold water, compared with the existing heat exchange mechanism, the water flow per minute can be increased under the condition of adopting the same power (such as 2100W), the water taking time of the user is shortened, and the use experience of the user is further improved.

Of course, the housing 10 of the water outlet device of this embodiment also has necessary structures and components of the existing water outlet device, and this embodiment is not described in detail because it is not related to this embodiment.

The housing 10 is provided with a water outlet 14, and in this embodiment, the water outlet 14 can discharge warm water (boiled water), cold water and hot water.

Further, the water outlet device of this embodiment is a faucet. The tap can directly discharge warm water for users to use.

The embodiment also provides a water purifying device, which comprises the heat exchange tube assembly or the heat exchange mechanism or the water outlet device.

The water purifying equipment can directly discharge warm water for users, can save heat energy, has a large water discharge amount, can shorten water taking time, and is good in use experience of the users.

In other embodiments, the first pipeline 1 may be a hot water cooling pipe, and the second pipeline 2 may be a cold water preheating pipe, which can achieve the purpose of the present utility model.

Although embodiments of the present utility model have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations fall within the scope of the utility model as defined by the appended claims.

Claims (15)

1. A heat exchange tube assembly for preheating cold water with hot water and cooling the hot water to warm water, the heat exchange tube assembly comprising:

A first pipeline (1);

The second pipeline (2) is sleeved in the first pipeline (1), and the second pipeline (2) is a continuous bent pipe.

2. Heat exchange tube assembly according to claim 1, wherein the tube wall of the second tube (2) is a curved tube wall or a folded tube wall.

3. Heat exchange tube assembly according to claim 1, wherein there is a water passing space between the inner wall of the first tube (1) and the outer wall of the second tube (2).

4. A heat exchange tube assembly according to any one of claims 1-3, wherein the second tube (2) is a corrugated tube.

5. The utility model provides a heat transfer mechanism which characterized in that, heat transfer mechanism is used for water purification unit, includes:

a main body (3);

the heating device (4) is arranged in the main body (3) and is used for heating cold water or preheated cold water into hot water;

A heat exchange tube assembly according to any one of claims 1-4, disposed within the main body (3).

6. A heat exchange mechanism according to claim 5, wherein the heat exchange tube assembly comprises a plurality of communicating heat exchange tube segments, the plurality of segments being arranged around the heat generating device (4).

7. The heat exchange mechanism according to claim 6, wherein the heat generating device (4) is disposed at a central position of the main body (3), and the heat exchange tube sub-members are disposed circumferentially around the heat generating device (4).

8. The heat exchange mechanism according to claim 5, wherein the first pipe water inlet (101) of the heat exchange pipe assembly is a cold water inlet, the first pipe water outlet (102) is connected to the heat generating device water inlet (401), the heat generating device water outlet (402) is connected to the second pipe water inlet (201), and the second pipe water outlet (202) is connected to the warm water pipe water outlet (701).

9. Heat exchange mechanism according to claim 8, wherein the first conduit (1) is formed in the main body (3).

10. The heat exchange mechanism according to claim 5, further comprising an upper cover (5), the upper cover (5) being provided to cover the top of the main body (3).

11. The heat exchange mechanism according to claim 10, wherein the second pipe water outlet (202) is in sealing connection with the upper cover (5).

12. Heat exchange mechanism according to any one of claims 5-11, further comprising a temperature control member provided to the main body (3) for preventing the heat generating device (4) from being over-heated.

13. A water outlet device, comprising: a housing (10) and a heat exchange mechanism according to any one of claims 5-12 arranged within said housing (10).

14. The water outlet device of claim 13, wherein the water outlet device is a faucet.

15. A water purification apparatus comprising a heat exchange tube assembly according to any one of claims 1 to 4, or comprising a heat exchange mechanism according to any one of claims 5 to 12, or comprising a water outlet device according to claim 13 or 14.