Heat exchange device and water purifier

Abstract

The invention relates to the technical field of water purification, and discloses and provides a heat exchange device and a water purifier.The heat exchange device comprises a heat exchange module, a water path is connected with a water inlet of the heat exchange module, and the water path exchanges heat through the heat exchange module; and the auxiliary module is connected with the heat exchange module, when the heat of the heat exchange module meets the preset condition, the heat exchange module exchanges heat through the auxiliary module, the heat of the heat exchange module can be effectively recycled, and the energy utilization rate is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of water purification, and in particular to a heat exchange device and a water purifier. Background Art

[0002] As people's living standards improve, they pay more and more attention to the health of drinking water, and water dispensers as health products are getting more and more attention and are widely used in people's daily lives. Among the many water dispensers, water dispensers with cooling or heating functions have become the mainstream of domestic household water dispensers. However, when the water dispenser performs cooling or heating at a high frequency or for a long time, the evaporator and condenser of the water dispenser will generate a large amount of cold and heat.

[0003] At present, a large amount of cold and heat generated by evaporators and condensers is mainly discharged into the environment through natural convection or directly discharged into the environment, which is not effectively utilized, resulting in energy waste. Summary of the invention

[0004] Based on this, it is necessary to propose a heat exchange device and a water purifier to address the technical problem that the evaporator and condenser of the prior art will generate a large amount of cold and heat and discharge it into the environment through natural convection or directly into the environment, which is not effectively utilized and leads to energy waste.

[0005] In a first aspect, a heat exchange device is provided, comprising: a heat exchange module, a water path being connected to a water inlet of the heat exchange module, and the water path performing heat exchange through the heat exchange module; and an auxiliary module, the auxiliary module being connected to the heat exchange module, and when the heat of the heat exchange module meets a preset condition, the heat exchange module performs heat exchange through the auxiliary module.

[0006] In one embodiment, the heat exchange module includes a first heat exchange submodule, a second heat exchange submodule and a compressor;

[0007] Among them, the water circuit is connected to the water inlet of the first heat exchange sub-module and / or the water inlet of the second heat exchange sub-module, the water circuit is cooled down by the first heat exchange sub-module, and the water circuit is heated up by the second heat exchange sub-module, and the compressor is connected to the first heat exchange sub-module and the second heat exchange sub-module.

[0008] In one embodiment, when the heat of the first heat exchange submodule is lower than a first heat threshold, the heat of the first heat exchange submodule is increased by the auxiliary module, and / or, when the heat of the second heat exchange submodule is higher than a second heat threshold, the heat of the second heat exchange submodule is reduced by the auxiliary module.

[0009] In one embodiment, a heat discharge pipe is provided in the auxiliary module, and a fluid is provided in the heat discharge pipe. The auxiliary module increases the heat of the first heat exchange submodule through the fluid, and / or the auxiliary module reduces the heat of the second heat exchange submodule through the fluid.

[0010] In one embodiment, the first heat exchange submodule is provided with a first exchange medium and a first energy storage component, and the first energy storage component reduces the heat of the water circuit through the first exchange medium; the second heat exchange submodule is provided with a second exchange medium and a second energy storage component, and the second energy storage component increases the heat of the water circuit through the second exchange medium.

[0011] In one embodiment, the first heat exchange medium and the second heat exchange medium are water or oil.

[0012] In one embodiment, the heat exchange module and the auxiliary module are arranged in close contact.

[0013] In one embodiment, a first valve assembly and a second valve assembly are provided on the water circuit, wherein the first valve assembly is provided at a first end of the water circuit, and the second valve assembly is provided at a second end of the water inlet circuit and between the first heat exchange submodule and the second heat exchange submodule.

[0014] In one embodiment, a water pump is further provided on the water channel. The water pump is provided at the second end of the water channel, and the water pump pressurizes the water source of the water channel.

[0015] In a second aspect, a water purifier is provided, comprising the heat exchange device described in any one of the above items.

[0016] The present application provides a heat exchange device and a water purifier, comprising a heat exchange module, a water path connected to the water inlet of the heat exchange module, and the water path exchanges heat through the heat exchange module; an auxiliary module, the auxiliary module is connected to the heat exchange module, and when the heat of the heat exchange module meets a preset condition, the heat exchange module exchanges heat through the auxiliary module. In the present application, when the heat of the heat exchange module meets the preset condition, the heat exchange module is exchanged with the auxiliary module connected thereto, so that the heat of the heat exchange module can be effectively recycled and utilized, thereby improving energy utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a water channel structure diagram of the first implementation mode of the heat exchange device provided in the embodiment of the present application;

[0019] Figure 2 This is a water channel structure diagram of a second embodiment of the heat exchange device provided in the embodiment of the present application;

[0020] Figure 3 This is a water circuit structure diagram of a third embodiment of the heat exchange device provided in the embodiment of the present application;

[0021] Figure 4 This is a water channel structure diagram of the fourth implementation mode of the heat exchange device provided in the examples of the present application. DETAILED DESCRIPTION

[0022] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the present disclosure will be more comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted.

[0023] In addition, the described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced while omitting one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, known structures, methods, devices, implementations, materials or operations are not shown or described in detail to avoid obscuring various aspects of the present disclosure.

[0024] In the present disclosure, unless otherwise clearly specified and limited, the terms "connected", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be an electrical connection, or it can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0025] In addition, in the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist, such as A and / or B, which may indicate the existence of A alone, B alone, and the simultaneous existence of A and B. The symbol " / " generally indicates that the objects associated before and after are in an "or" relationship. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0026] In one embodiment, Figure 1 A first structural schematic diagram of a water purifier is shown. Figure 1 As shown, the heat exchange device includes a heat exchange module 10 and an auxiliary module 20 .

[0027] The water path s is connected to the water inlet of the heat exchange module 10, and the water path s exchanges heat through the heat exchange module 10; the auxiliary module 20 is connected to the heat exchange module 10, and when the heat of the heat exchange module 10 meets the preset conditions, the heat exchange module 10 exchanges heat through the auxiliary module 20.

[0028] The preset condition refers to a condition that triggers the heat exchange module to exchange heat through the auxiliary module. For example, the preset condition may include that the heat of the heat exchange module is lower than a first heat threshold and / or the heat of the heat exchange module is higher than a second heat threshold, the first heat threshold represents the lower limit of the heat of the heat exchange module, and the second heat threshold represents the upper limit of the heat of the heat exchange module.

[0029] The heat exchange module 10 is used to adjust the temperature of the water source in the water path s. The clean water first enters the heat exchange module 10, and the water path s exchanges heat through the heat exchange module 10, that is, the heat of the water source in the water path s is absorbed or released to adjust the temperature of the clean water. In an application scenario, assuming that the user continuously prepares cold water or hot water, the heat of the heat exchange module will be too saturated, that is, the heat is lower than the first heat threshold or the heat is higher than the second heat threshold. In this case, the heat exchange module is exchanged through the auxiliary module to discharge the saturated energy in the heat exchange module.

[0030] Optionally, in one embodiment, the heat exchange module and the auxiliary module are arranged in close contact with each other.

[0031] Optionally, in one embodiment, a heat discharge pipe is provided in the auxiliary module, and a fluid is provided in the heat discharge pipe. The auxiliary module increases the heat of the first heat exchange submodule through the fluid, and / or the auxiliary module reduces the heat of the second heat exchange submodule through the fluid.

[0032] The heat discharge pipe can be a plastic water pipe, a metal water pipe, an alloy water pipe or other water pipe for fluid circulation. For example, the fluid in the heat discharge pipe in the auxiliary module can be water. When the heat of the heat exchange module is too saturated, the heat exchange heat can be taken away by water, and the water can be reused for washing dishes and taking a bath.

[0033] In some embodiments, a heat exchange medium and an energy storage component are provided in the heat exchange module, and the energy storage component exchanges heat with the water circuit s through the heat exchange medium. The heat exchange medium is a substance used to transfer heat between the energy storage component and the water circuit. This can be water, antifreeze, oil, or other liquids with good thermal conductivity. The energy storage component is responsible for storing thermal energy, usually storing energy when the system is not running or the load is low, and releasing energy when demand peaks. The energy storage component can be a phase change material (PCMs), which changes state (such as from solid to liquid) when absorbing or releasing heat, or it can be other types of heat storage technology, such as a thermal storage tank. The heat exchange medium circulates between the energy storage component and the water circuit, absorbing heat from the energy storage component and transferring it to the clean water, or conversely, absorbing heat from the clean water and storing it in the energy storage component. By using an energy storage component, the system can store energy when electricity demand is low or cost is low, thereby reducing energy waste and reducing operating costs.

[0034] In one embodiment, if Figure 2 As shown, the heat exchange module 10 includes a first heat exchange submodule 101, a second heat exchange submodule 102 and a compressor 103;

[0035] Among them, the water circuit s is connected to the water inlet of the first heat exchange sub-module 101 and / or the water inlet of the second heat exchange sub-module 102, the water circuit s is cooled by the first heat exchange sub-module 101, and the water circuit s is heated by the second heat exchange sub-module 102, and the compressor 103 is connected to the first heat exchange sub-module 101 and the second heat exchange sub-module 102.

[0036] The main function of the first heat exchange submodule 101 is to cool the incoming clean water. The first heat exchange submodule 101 can use a cooling medium (such as a refrigerant or a cold phase changer) to absorb the heat of the clean water, thereby reducing the clean water temperature. The second heat exchange submodule 102 corresponds to the first heat exchange submodule 101, and the main function of the second heat exchange submodule 102 is to heat the clean water. The second heat exchange submodule 102 can use a heating medium (such as hot water, steam or a hot phase changer) to transfer heat to the clean water, thereby increasing the clean water temperature. The compressor 103 is used to increase the pressure of the refrigerant or other medium, thereby realizing the transfer of heat between the first heat exchange submodule 101 and the second heat exchange submodule 102. The compressor 103 plays a role in circulating and regulating the refrigerant pressure in the clean water heat exchange system to ensure the effectiveness of the heat exchange process. The waterway s is a channel connecting each module, and the waterway s guides the clean water to the first heat exchange submodule 101 and the second heat exchange submodule 102 respectively. For example, the water purification heat exchange system is integrated in the water dispenser. When the user needs to prepare cold water, the water source in the water circuit s can be cooled by the first heat exchange module 101 to meet the user's need to prepare cold water; for example, when the user needs to prepare hot water, the water source in the water circuit s can be cooled by the second heat exchange module 102 to meet the user's need to prepare hot water; for example, when the user needs to prepare warm water, the water source in the water circuit s can be cooled by the first heat exchange module 101 to obtain cold water; at the same time, the water source in the water circuit s can be cooled by the second heat exchange module 102 to obtain hot water. Finally, the water purification heat exchange system mixes cold water and hot water in proportion to prepare warm water.

[0037] The first heat exchange submodule may include an evaporator and a phase change heat body, the phase change heat body is in contact with the evaporator, and the evaporator absorbs the heat of the phase change heat body, so that the phase change heat body can be cooled down to exchange heat and cool the pure water in the water circuit; the second heat exchange submodule may include a condenser and a phase change heat body, the phase change heat body is in contact with the condenser, and the phase change heat body absorbs the heat emitted by the condenser to exchange heat and heat up the pure water in the water circuit, and the auxiliary module is connected to the evaporator and the condenser respectively. In the first heat exchange submodule, the phase change heat body will undergo a phase change when losing heat, changing from one phase to another phase (such as from liquid to solid), thereby realizing the storage of a large amount of cold; in the second heat exchange submodule, the phase change heat body will undergo a phase change when absorbing heat, changing from one phase to another phase (such as from solid to liquid), thereby realizing the storage of a large amount of heat.

[0038] In one embodiment, when the heat of the first heat exchange submodule is lower than a first heat threshold, the heat of the first heat exchange submodule is increased by the auxiliary module, and / or, when the heat of the second heat exchange submodule is higher than a second heat threshold, the heat of the second heat exchange submodule is reduced by the auxiliary module.

[0039] like Figure 3 As shown, the auxiliary module 20 is provided with a heat discharge pipe 201, which provides fluid through a fluid output device 202. The fluid output device can be a water heater and / or a refrigerator. The heat discharge pipe can also circulate tap water; the heat discharge pipe is fitted with the first heat exchange submodule.

[0040] Exemplarily, when the heat of the first heat exchange submodule is lower than the first heat threshold, the difference between the first heat exchange submodule and the first heat threshold can be calculated, and the preset heat exchange operation parameters corresponding to the difference can be obtained. The preset heat exchange operation parameters of the heat discharge pipe are generated based on the preset heat exchange parameters, and the operation strategy of the heat discharge pipe is generated based on the preset heat exchange operation parameters. Among them, the preset cooling operation parameters include the temperature, flow rate, flow velocity, heat exchange duration, etc. of the water flow in the heat discharge pipe. Based on this, the auxiliary module is contacted with the first heat exchange submodule for heat exchange to increase the heat of the first heat exchange submodule so that the heat of the first heat exchange submodule reaches the standard heat of refrigeration. Assuming that the heat of the first heat exchange submodule is -30 joules, the first heat threshold is set to -15 joules. Determine the operation strategy based on the difference: set the water flow speed to 2 meters per second. The water flow heat is -2 joules. The water flow rate is 2 liters per minute to reach -15 joules within 10 minutes. The operation strategy is to start the auxiliary module: set the water flow rate to 2 m / s, the initial water temperature to -2 joules, and the flow rate to 2 liters per minute. Monitor the heat: ensure that the heat is not less than -15 joules. Adjust the strategy: if the heat is close to -15 joules, reduce the water flow rate or reduce the flow rate until the heat is higher or lower than -15 joules or reaches the standard heat for cooling, and then turn off the auxiliary module.

[0041] For example, the operation strategy of the auxiliary module is determined by the difference, and the operation strategy includes setting the water flow velocity, water flow heat and water flow rate to control the heat exchange time of the water flow, that is, controlling the heat exchange time of the auxiliary module, determining the flow rate of water in the auxiliary module, which will affect the heat exchange efficiency and the required heat exchange time; setting the initial heat of the auxiliary module input water flow. If the ambient heat is low, it may be necessary to start with a higher initial heat; calculating the required water flow rate to ensure that the expected upper limit of heat is reached within a given heat exchange time; calculating the heat exchange time required to reach the first heat threshold based on the transferred cooling capacity, water flow velocity, water flow heat and water flow rate.

[0042] For example, reference Figure 3, a heat discharge pipe is provided in the auxiliary module, and the heat discharge pipe is fitted with the second heat exchange submodule. When the heat of the second heat exchange submodule is higher than the second heat threshold, the difference between the second heat exchange submodule and the second heat threshold can be calculated, and the preset heat exchange operation parameters corresponding to the difference can be obtained. The preset heat exchange operation parameters of the heat discharge pipe are generated based on the preset heat exchange parameters, and the operation strategy of the heat discharge pipe is generated based on the preset heat exchange operation parameters. Among them, the preset cooling operation parameters include the temperature, flow rate, flow rate, etc. of the water flow in the heat discharge pipe. Based on this, the auxiliary module contacts the second heat exchange submodule and can perform contact heat exchange with the heat of the second heat exchange submodule to reduce the heat of the second heat exchange submodule and make the temperature of the second heat exchange submodule reach the standard heat for heating.

[0043] The operation strategy may include starting the auxiliary module and setting the water flow rate, temperature and flow rate; adjusting the water flow rate and temperature according to real-time feedback so that the heat of the second heat exchange module is lower than the second heat threshold, or even reaches the standard heat for heating; setting the heat exchange time to ensure that the auxiliary module continues to operate before the expected heat reduction effect is achieved, until the heat of the second heat exchange module reaches the standard heat for heating, the auxiliary module can be turned off. For example, assuming that the transfer heat based on the second heat exchange submodule is 30 joules, the second heat threshold is set to 15 joules. Determine the operation strategy based on the difference: Set the water flow rate to 1 m / s. The water flow heat is 0 joules. The water flow rate is 2 liters per minute to reach 15 joules within 10 minutes. The operation strategy is to start the auxiliary module: set the water flow rate to 1 m / s, the initial water temperature to 30 joules, and the flow rate to 2 liters per minute. Monitor the heat: ensure that the heat is not less than 15 joules. Adjustment strategy: If the heat approaches 15 joules, reduce the water flow rate or reduce the flow rate to avoid falling below the second heat threshold until the heat is equal to or less than 15 joules, shutting down the auxiliary module.

[0044] In one embodiment, the first heat exchange submodule is provided with a first exchange medium and a first energy storage component, and the first energy storage component reduces the heat of the water circuit through the first exchange medium; the second heat exchange submodule is provided with a second exchange medium and a second energy storage component, and the second energy storage component increases the heat of the water circuit through the second exchange medium.

[0045] The first energy storage component is responsible for storing cold energy (for example, through a cooling medium or a phase change material). The first exchange medium (for example, water, refrigerant or other fluid) absorbs cold energy in the first energy storage component, and then exchanges heat with the water in water path a to reduce its temperature. The second energy storage component is responsible for storing heat energy (for example, through a heating medium or a phase change material). The second exchange medium absorbs heat energy in the second energy storage component, and then exchanges heat with the water in water path a to increase its temperature.

[0046] The energy storage components can be phase change materials (PCMs), which change state (such as from solid to liquid) when absorbing or releasing heat, or can be other types of heat storage technologies, such as thermal storage tanks. The exchange medium circulates between the energy storage component and the water circuit, absorbing heat from the energy storage component and transferring it to the clean water, or vice versa, absorbing heat from the clean water and storing it in the energy storage component. By using energy storage components, the system can store energy when electricity demand is low or cost is low, thereby reducing energy waste and lowering operating costs.

[0047] In one embodiment, the first heat exchange medium and the second heat exchange medium are water or oil.

[0048] In one embodiment, if Figure 4 As shown, the water path is provided with a first valve component 301 and a second valve component 302, the first valve component 301 is arranged at the first end of the water path s, the second valve component 302 is arranged at the second end of the water inlet path s, and is arranged between the first heat exchange sub-module 101 and the second heat exchange sub-module 102.

[0049] The first valve component and the second valve component may be solenoid valves for controlling the flow direction, on-off and water flow of pure water in the water path.

[0050] It is understandable that valve components play a vital role in clean water heat exchange systems. They control the direction and flow of water to achieve precise temperature control and system management.

[0051] The first valve assembly 301 is used to control the flow of clean water into the first heat exchange submodule 101 and the second heat exchange submodule 102, such as controlling whether the water source flows through the first heat exchange submodule 101 or the second heat exchange submodule 102. Of course, in some cases, when the user needs normal temperature water, the first valve assembly 301 can also control the clean water part to enter the first heat exchange submodule 101 and the second heat exchange submodule 102. The second valve assembly 302 is used to control the flow direction of clean water after cooling through the first heat exchange submodule 101, and to control the flow direction of clean water after cooling through the second heat exchange submodule 101, and to determine whether the water flows to other parts of the system, such as controlling the mixing of cold water and hot water to prepare normal temperature water. In addition, the second valve assembly 302 can also adjust the water flow rate of the first heat exchange submodule 101 and the second heat exchange submodule 102 to adapt to different water needs. During system maintenance or failure, the second valve assembly 302 can be used to cut off the water flow to protect the system from further damage. The first valve assembly 301 and the second valve assembly 302 can support the system to operate in different working modes, for example, using only cold water mode, only hot water mode or mixed warm water mode.

[0052] In one embodiment, if Figure 4 As shown, a water pump 40 is also provided on the water channel. The water pump 40 is provided at the second end of the water channel s, and the water pump 40 pressurizes the water source of the water channel s.

[0053] When the system is started or shut down, the water pump 40 can prevent water hammer and reduce the impact on pipelines and equipment.

[0054] The above is the waterway control process of this application.

[0055] As described above, the present application provides a heat exchange device, including a heat exchange module, a water path connected to the water inlet of the heat exchange module, and the water path exchanges heat through the heat exchange module; an auxiliary module, the auxiliary module is connected to the heat exchange module, and when the heat of the heat exchange module meets the preset conditions, the heat exchange module exchanges heat through the auxiliary module. In the present application, when the heat of the heat exchange module meets the preset conditions, the heat exchange module is exchanged with the auxiliary module connected thereto, so that the heat of the heat exchange module can be effectively recycled and reused, thereby improving energy utilization.

[0056] The present application also provides a water purifier (not shown), which includes a heat exchange device. The specific structure of the heat exchange device refers to the above-mentioned embodiment. Since the water purifier proposed in the present application adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0057] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A heat exchange device, characterized in that: include: A heat exchange module, wherein a water channel is connected to a water inlet of the heat exchange module, and the water channel exchanges heat through the heat exchange module; An auxiliary module is connected to the heat exchange module. When the heat of the heat exchange module meets a preset condition, the heat exchange module exchanges heat through the auxiliary module.

2. The heat exchange device according to claim 1, characterized in that: The heat exchange module includes a first heat exchange submodule, a second heat exchange submodule and a compressor; Among them, the water circuit is connected to the water inlet of the first heat exchange sub-module and / or the water inlet of the second heat exchange sub-module, the water circuit is cooled down by the first heat exchange sub-module, and the water circuit is heated up by the second heat exchange sub-module, and the compressor is connected to the first heat exchange sub-module and the second heat exchange sub-module.

3. The heat exchange device according to claim 2, characterized in that: When the heat of the first heat exchange submodule is lower than a first heat threshold, the heat of the first heat exchange submodule is increased by the auxiliary module, and / or, when the heat of the second heat exchange submodule is higher than a second heat threshold, the heat of the second heat exchange submodule is reduced by the auxiliary module.

4. The heat exchange device according to claim 3, characterized in that: The auxiliary module is provided with a heat discharge pipe, and a fluid is provided in the heat discharge pipe. The auxiliary module increases the heat of the first heat exchange submodule through the fluid, and / or the auxiliary module reduces the heat of the second heat exchange submodule through the fluid.

5. The heat exchange device according to claim 2, characterized in that: The first heat exchange submodule is provided with a first exchange medium and a first energy storage component, and the first energy storage component reduces the heat of the water circuit through the first exchange medium; the second heat exchange submodule is provided with a second exchange medium and a second energy storage component, and the second energy storage component increases the heat of the water circuit through the second exchange medium.

6. The heat exchange device according to claim 5, characterized in that: The first heat exchange medium and the second heat exchange medium are water or oil.

7. The heat exchange device according to claim 1, characterized in that: The heat exchange module is arranged in close contact with the auxiliary module.

8. The heat exchange device according to claim 1, characterized in that: The waterway is provided with a first valve component and a second valve component. The first valve component is provided at a first end of the waterway, and the second valve component is provided at a second end of the water inlet and between the first heat exchange submodule and the second heat exchange submodule.

9. The heat exchange device according to claim 8, characterized in that: The waterway is also provided with a water pump, which is arranged at the second end of the waterway and pressurizes the water source of the waterway.

10. A water purifier, characterized in that: The method comprises the heat exchange device according to any one of claims 1 to 9.

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